Apps index access column + summary + admin access checker

The Applications index used to render "All users" whenever an app had
no allowed_groups; under default-deny that's the opposite of the truth.
Replaced with a "No one" badge and, when groups are present, a
"N users · M groups" cell so the access reality is visible at a glance.

Added a small stats strip above the apps table: applications, users
with access, and groups granting access. Backed by preloaded counts in
the controller to avoid N+1.

Added /admin/access — a small "Access check" tool that takes a user
and an application and reports whether the user can reach it, with the
granting group(s) when allowed, and the specific reason when not
(inactive app/user, no allowed groups, or no shared group). Wired into
the admin sidebar.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.ruby-version

@@ -1 +1 @@
-3.4.8
+4.0.3

Dockerfile

@@ -8,7 +8,7 @@
 # For a containerized dev environment, see Dev Containers: https://guides.rubyonrails.org/getting_started_with_devcontainer.html
 
 # Make sure RUBY_VERSION matches the Ruby version in .ruby-version
-ARG RUBY_VERSION=3.4.8
+ARG RUBY_VERSION=4.0.3
 FROM docker.io/library/ruby:$RUBY_VERSION-slim AS base
 
 LABEL org.opencontainers.image.source=https://github.com/dkam/clinch

Gemfile

@@ -1,7 +1,7 @@
 source "https://rubygems.org"
 
 # Bundle edge Rails instead: gem "rails", github: "rails/rails", branch: "main"
-gem "rails", "~> 8.1.1"
+gem "rails", "~> 8.1.3"
 # The modern asset pipeline for Rails [https://github.com/rails/propshaft]
 gem "propshaft"
 # Use sqlite3 as the database for Active Record

Gemfile.lock

@@ -1,31 +1,31 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    action_text-trix (2.1.16)
+    action_text-trix (2.1.18)
       railties
-    actioncable (8.1.1)
+    actioncable (8.1.3)
-      actionpack (= 8.1.1)
+      actionpack (= 8.1.3)
-      activesupport (= 8.1.1)
+      activesupport (= 8.1.3)
       nio4r (~> 2.0)
       websocket-driver (>= 0.6.1)
       zeitwerk (~> 2.6)
-    actionmailbox (8.1.1)
+    actionmailbox (8.1.3)
-      actionpack (= 8.1.1)
+      actionpack (= 8.1.3)
-      activejob (= 8.1.1)
+      activejob (= 8.1.3)
-      activerecord (= 8.1.1)
+      activerecord (= 8.1.3)
-      activestorage (= 8.1.1)
+      activestorage (= 8.1.3)
-      activesupport (= 8.1.1)
+      activesupport (= 8.1.3)
       mail (>= 2.8.0)
-    actionmailer (8.1.1)
+    actionmailer (8.1.3)
-      actionpack (= 8.1.1)
+      actionpack (= 8.1.3)
-      actionview (= 8.1.1)
+      actionview (= 8.1.3)
-      activejob (= 8.1.1)
+      activejob (= 8.1.3)
-      activesupport (= 8.1.1)
+      activesupport (= 8.1.3)
       mail (>= 2.8.0)
       rails-dom-testing (~> 2.2)
-    actionpack (8.1.1)
+    actionpack (8.1.3)
-      actionview (= 8.1.1)
+      actionview (= 8.1.3)
-      activesupport (= 8.1.1)
+      activesupport (= 8.1.3)
       nokogiri (>= 1.8.5)
       rack (>= 2.2.4)
       rack-session (>= 1.0.1)
@@ -33,36 +33,36 @@ GEM
       rails-dom-testing (~> 2.2)
       rails-html-sanitizer (~> 1.6)
       useragent (~> 0.16)
-    actiontext (8.1.1)
+    actiontext (8.1.3)
       action_text-trix (~> 2.1.15)
-      actionpack (= 8.1.1)
+      actionpack (= 8.1.3)
-      activerecord (= 8.1.1)
+      activerecord (= 8.1.3)
-      activestorage (= 8.1.1)
+      activestorage (= 8.1.3)
-      activesupport (= 8.1.1)
+      activesupport (= 8.1.3)
       globalid (>= 0.6.0)
       nokogiri (>= 1.8.5)
-    actionview (8.1.1)
+    actionview (8.1.3)
-      activesupport (= 8.1.1)
+      activesupport (= 8.1.3)
       builder (~> 3.1)
       erubi (~> 1.11)
       rails-dom-testing (~> 2.2)
       rails-html-sanitizer (~> 1.6)
-    activejob (8.1.1)
+    activejob (8.1.3)
-      activesupport (= 8.1.1)
+      activesupport (= 8.1.3)
       globalid (>= 0.3.6)
-    activemodel (8.1.1)
+    activemodel (8.1.3)
-      activesupport (= 8.1.1)
+      activesupport (= 8.1.3)
-    activerecord (8.1.1)
+    activerecord (8.1.3)
-      activemodel (= 8.1.1)
+      activemodel (= 8.1.3)
-      activesupport (= 8.1.1)
+      activesupport (= 8.1.3)
       timeout (>= 0.4.0)
-    activestorage (8.1.1)
+    activestorage (8.1.3)
-      actionpack (= 8.1.1)
+      actionpack (= 8.1.3)
-      activejob (= 8.1.1)
+      activejob (= 8.1.3)
-      activerecord (= 8.1.1)
+      activerecord (= 8.1.3)
-      activesupport (= 8.1.1)
+      activesupport (= 8.1.3)
       marcel (~> 1.0)
-    activesupport (8.1.1)
+    activesupport (8.1.3)
       base64
       bigdecimal
       concurrent-ruby (~> 1.0, >= 1.3.1)
@@ -75,19 +75,19 @@ GEM
       securerandom (>= 0.3)
       tzinfo (~> 2.0, >= 2.0.5)
       uri (>= 0.13.1)
-    addressable (2.8.8)
+    addressable (2.9.0)
       public_suffix (>= 2.0.2, < 8.0)
     android_key_attestation (0.3.0)
     ast (2.4.3)
     base64 (0.3.0)
-    bcrypt (3.1.21)
+    bcrypt (3.1.22)
     bcrypt_pbkdf (1.1.2)
-    bigdecimal (4.0.1)
+    bigdecimal (4.1.2)
     bindata (2.5.1)
     bindex (0.8.1)
-    bootsnap (1.20.1)
+    bootsnap (1.24.1)
       msgpack (~> 1.2)
-    brakeman (7.1.2)
+    brakeman (8.0.4)
       racc
     builder (3.3.0)
     bundler-audit (0.9.3)
@@ -102,7 +102,7 @@ GEM
       rack-test (>= 0.6.3)
       regexp_parser (>= 1.5, < 3.0)
       xpath (~> 3.2)
-    cbor (0.5.10.1)
+    cbor (0.5.10.2)
     childprocess (5.1.0)
       logger (~> 1.5)
     chunky_png (1.4.0)
@@ -120,17 +120,17 @@ GEM
     dotenv (3.2.0)
     drb (2.2.3)
     ed25519 (1.4.0)
-    erb (6.0.1)
+    erb (6.0.4)
     erubi (1.13.1)
     et-orbi (1.4.0)
       tzinfo
-    ffi (1.17.3-aarch64-linux-gnu)
+    ffi (1.17.4-aarch64-linux-gnu)
-    ffi (1.17.3-aarch64-linux-musl)
+    ffi (1.17.4-aarch64-linux-musl)
-    ffi (1.17.3-arm-linux-gnu)
+    ffi (1.17.4-arm-linux-gnu)
-    ffi (1.17.3-arm-linux-musl)
+    ffi (1.17.4-arm-linux-musl)
-    ffi (1.17.3-arm64-darwin)
+    ffi (1.17.4-arm64-darwin)
-    ffi (1.17.3-x86_64-linux-gnu)
+    ffi (1.17.4-x86_64-linux-gnu)
-    ffi (1.17.3-x86_64-linux-musl)
+    ffi (1.17.4-x86_64-linux-musl)
     fugit (1.12.1)
       et-orbi (~> 1.4)
       raabro (~> 1.4)
@@ -141,22 +141,23 @@ GEM
     image_processing (1.14.0)
       mini_magick (>= 4.9.5, < 6)
       ruby-vips (>= 2.0.17, < 3)
-    importmap-rails (2.2.2)
+    importmap-rails (2.2.3)
       actionpack (>= 6.0.0)
       activesupport (>= 6.0.0)
       railties (>= 6.0.0)
     io-console (0.8.2)
-    irb (1.16.0)
+    irb (1.18.0)
       pp (>= 0.6.0)
+      prism (>= 1.3.0)
       rdoc (>= 4.0.0)
       reline (>= 0.4.2)
     jbuilder (2.14.1)
       actionview (>= 7.0.0)
       activesupport (>= 7.0.0)
-    json (2.18.0)
+    json (2.19.4)
     jwt (3.1.2)
       base64
-    kamal (2.10.1)
+    kamal (2.11.0)
       activesupport (>= 7.0)
       base64 (~> 0.2)
       bcrypt_pbkdf (~> 1.0)
@@ -176,7 +177,7 @@ GEM
       launchy (>= 2.2, < 4)
     lint_roller (1.1.0)
     logger (1.7.0)
-    loofah (2.25.0)
+    loofah (2.25.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
     mail (2.9.0)
@@ -192,7 +193,7 @@ GEM
     mini_mime (1.1.5)
     minitest (5.27.0)
     msgpack (1.8.0)
-    net-imap (0.6.2)
+    net-imap (0.6.4)
       date
       net-protocol
     net-pop (0.1.2)
@@ -205,78 +206,78 @@ GEM
       net-ssh (>= 5.0.0, < 8.0.0)
     net-smtp (0.5.1)
       net-protocol
-    net-ssh (7.3.0)
+    net-ssh (7.3.2)
     nio4r (2.7.5)
-    nokogiri (1.19.0-aarch64-linux-gnu)
+    nokogiri (1.19.3-aarch64-linux-gnu)
       racc (~> 1.4)
-    nokogiri (1.19.0-aarch64-linux-musl)
+    nokogiri (1.19.3-aarch64-linux-musl)
       racc (~> 1.4)
-    nokogiri (1.19.0-arm-linux-gnu)
+    nokogiri (1.19.3-arm-linux-gnu)
       racc (~> 1.4)
-    nokogiri (1.19.0-arm-linux-musl)
+    nokogiri (1.19.3-arm-linux-musl)
       racc (~> 1.4)
-    nokogiri (1.19.0-arm64-darwin)
+    nokogiri (1.19.3-arm64-darwin)
       racc (~> 1.4)
-    nokogiri (1.19.0-x86_64-linux-gnu)
+    nokogiri (1.19.3-x86_64-linux-gnu)
       racc (~> 1.4)
-    nokogiri (1.19.0-x86_64-linux-musl)
+    nokogiri (1.19.3-x86_64-linux-musl)
       racc (~> 1.4)
-    openssl (4.0.0)
+    openssl (4.0.1)
     openssl-signature_algorithm (1.3.0)
       openssl (> 2.0)
     ostruct (0.6.3)
-    parallel (1.27.0)
+    parallel (1.28.0)
-    parser (3.3.10.0)
+    parser (3.3.11.1)
       ast (~> 2.4.1)
       racc
     pp (0.6.3)
       prettyprint
     prettyprint (0.2.0)
-    prism (1.7.0)
+    prism (1.9.0)
-    propshaft (1.3.1)
+    propshaft (1.3.2)
       actionpack (>= 7.0.0)
       activesupport (>= 7.0.0)
       rack
     psych (5.3.1)
       date
       stringio
-    public_suffix (7.0.0)
+    public_suffix (7.0.5)
-    puma (7.1.0)
+    puma (8.0.1)
       nio4r (~> 2.0)
     raabro (1.4.0)
     racc (1.8.1)
-    rack (3.2.4)
+    rack (3.2.6)
-    rack-session (2.1.1)
+    rack-session (2.1.2)
       base64 (>= 0.1.0)
       rack (>= 3.0.0)
     rack-test (2.2.0)
       rack (>= 1.3)
     rackup (2.3.1)
       rack (>= 3)
-    rails (8.1.1)
+    rails (8.1.3)
-      actioncable (= 8.1.1)
+      actioncable (= 8.1.3)
-      actionmailbox (= 8.1.1)
+      actionmailbox (= 8.1.3)
-      actionmailer (= 8.1.1)
+      actionmailer (= 8.1.3)
-      actionpack (= 8.1.1)
+      actionpack (= 8.1.3)
-      actiontext (= 8.1.1)
+      actiontext (= 8.1.3)
-      actionview (= 8.1.1)
+      actionview (= 8.1.3)
-      activejob (= 8.1.1)
+      activejob (= 8.1.3)
-      activemodel (= 8.1.1)
+      activemodel (= 8.1.3)
-      activerecord (= 8.1.1)
+      activerecord (= 8.1.3)
-      activestorage (= 8.1.1)
+      activestorage (= 8.1.3)
-      activesupport (= 8.1.1)
+      activesupport (= 8.1.3)
       bundler (>= 1.15.0)
-      railties (= 8.1.1)
+      railties (= 8.1.3)
     rails-dom-testing (2.3.0)
       activesupport (>= 5.0.0)
       minitest
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.6.2)
+    rails-html-sanitizer (1.7.0)
-      loofah (~> 2.21)
+      loofah (~> 2.25)
       nokogiri (>= 1.15.7, != 1.16.7, != 1.16.6, != 1.16.5, != 1.16.4, != 1.16.3, != 1.16.2, != 1.16.1, != 1.16.0.rc1, != 1.16.0)
-    railties (8.1.1)
+    railties (8.1.3)
-      actionpack (= 8.1.1)
+      actionpack (= 8.1.3)
-      activesupport (= 8.1.1)
+      activesupport (= 8.1.3)
       irb (~> 1.13)
       rackup (>= 1.0.0)
       rake (>= 12.2)
@@ -284,21 +285,21 @@ GEM
       tsort (>= 0.2)
       zeitwerk (~> 2.6)
     rainbow (3.1.1)
-    rake (13.3.1)
+    rake (13.4.2)
-    rdoc (7.0.3)
+    rdoc (7.2.0)
       erb
       psych (>= 4.0.0)
       tsort
-    regexp_parser (2.11.3)
+    regexp_parser (2.12.0)
     reline (0.6.3)
       io-console (~> 0.5)
     rexml (3.4.4)
     rotp (6.3.0)
-    rqrcode (3.1.1)
+    rqrcode (3.2.0)
       chunky_png (~> 1.0)
       rqrcode_core (~> 2.0)
-    rqrcode_core (2.0.1)
+    rqrcode_core (2.1.0)
-    rubocop (1.81.7)
+    rubocop (1.84.2)
       json (~> 2.3)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.1.0)
@@ -306,10 +307,10 @@ GEM
       parser (>= 3.3.0.2)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 2.9.3, < 3.0)
-      rubocop-ast (>= 1.47.1, < 2.0)
+      rubocop-ast (>= 1.49.0, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 4.0)
-    rubocop-ast (1.49.0)
+    rubocop-ast (1.49.1)
       parser (>= 3.3.7.2)
       prism (~> 1.7)
     rubocop-performance (1.26.1)
@@ -324,18 +325,19 @@ GEM
     safety_net_attestation (0.5.0)
       jwt (>= 2.0, < 4.0)
     securerandom (0.4.1)
-    selenium-webdriver (4.39.0)
+    selenium-webdriver (4.43.0)
       base64 (~> 0.2)
       logger (~> 1.4)
       rexml (~> 3.2, >= 3.2.5)
       rubyzip (>= 1.2.2, < 4.0)
       websocket (~> 1.0)
-    sentry-rails (6.2.0)
+    sentry-rails (6.5.0)
       railties (>= 5.2.0)
-      sentry-ruby (~> 6.2.0)
+      sentry-ruby (~> 6.5.0)
-    sentry-ruby (6.2.0)
+    sentry-ruby (6.5.0)
       bigdecimal
       concurrent-ruby (~> 1.0, >= 1.0.2)
+      logger
     simplecov (0.22.0)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
@@ -351,20 +353,20 @@ GEM
       activejob (>= 7.2)
       activerecord (>= 7.2)
       railties (>= 7.2)
-    solid_queue (1.2.4)
+    solid_queue (1.4.0)
       activejob (>= 7.1)
       activerecord (>= 7.1)
       concurrent-ruby (>= 1.3.1)
       fugit (~> 1.11)
       railties (>= 7.1)
       thor (>= 1.3.1)
-    sqlite3 (2.9.0-aarch64-linux-gnu)
+    sqlite3 (2.9.3-aarch64-linux-gnu)
-    sqlite3 (2.9.0-aarch64-linux-musl)
+    sqlite3 (2.9.3-aarch64-linux-musl)
-    sqlite3 (2.9.0-arm-linux-gnu)
+    sqlite3 (2.9.3-arm-linux-gnu)
-    sqlite3 (2.9.0-arm-linux-musl)
+    sqlite3 (2.9.3-arm-linux-musl)
-    sqlite3 (2.9.0-arm64-darwin)
+    sqlite3 (2.9.3-arm64-darwin)
-    sqlite3 (2.9.0-x86_64-linux-gnu)
+    sqlite3 (2.9.3-x86_64-linux-gnu)
-    sqlite3 (2.9.0-x86_64-linux-musl)
+    sqlite3 (2.9.3-x86_64-linux-musl)
     sshkit (1.25.0)
       base64
       logger
@@ -372,10 +374,10 @@ GEM
       net-sftp (>= 2.1.2)
       net-ssh (>= 2.8.0)
       ostruct
-    standard (1.52.0)
+    standard (1.54.0)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.0)
-      rubocop (~> 1.81.7)
+      rubocop (~> 1.84.0)
       standard-custom (~> 1.0.0)
       standard-performance (~> 1.8)
     standard-custom (1.0.2)
@@ -390,24 +392,24 @@ GEM
     tailwindcss-rails (4.4.0)
       railties (>= 7.0.0)
       tailwindcss-ruby (~> 4.0)
-    tailwindcss-ruby (4.1.18)
+    tailwindcss-ruby (4.2.4)
-    tailwindcss-ruby (4.1.18-aarch64-linux-gnu)
+    tailwindcss-ruby (4.2.4-aarch64-linux-gnu)
-    tailwindcss-ruby (4.1.18-aarch64-linux-musl)
+    tailwindcss-ruby (4.2.4-aarch64-linux-musl)
-    tailwindcss-ruby (4.1.18-arm64-darwin)
+    tailwindcss-ruby (4.2.4-arm64-darwin)
-    tailwindcss-ruby (4.1.18-x86_64-linux-gnu)
+    tailwindcss-ruby (4.2.4-x86_64-linux-gnu)
-    tailwindcss-ruby (4.1.18-x86_64-linux-musl)
+    tailwindcss-ruby (4.2.4-x86_64-linux-musl)
-    thor (1.4.0)
+    thor (1.5.0)
-    thruster (0.1.17)
+    thruster (0.1.20)
-    thruster (0.1.17-aarch64-linux)
+    thruster (0.1.20-aarch64-linux)
-    thruster (0.1.17-arm64-darwin)
+    thruster (0.1.20-arm64-darwin)
-    thruster (0.1.17-x86_64-linux)
+    thruster (0.1.20-x86_64-linux)
-    timeout (0.6.0)
+    timeout (0.6.1)
     tpm-key_attestation (0.14.1)
       bindata (~> 2.4)
       openssl (> 2.0)
       openssl-signature_algorithm (~> 1.0)
     tsort (0.2.0)
-    turbo-rails (2.0.20)
+    turbo-rails (2.0.23)
       actionpack (>= 7.1.0)
       railties (>= 7.1.0)
     tzinfo (2.0.6)
@@ -417,11 +419,10 @@ GEM
     unicode-emoji (4.2.0)
     uri (1.1.1)
     useragent (0.16.11)
-    web-console (4.2.1)
+    web-console (4.3.0)
-      actionview (>= 6.0.0)
+      actionview (>= 8.0.0)
-      activemodel (>= 6.0.0)
       bindex (>= 0.4.0)
-      railties (>= 6.0.0)
+      railties (>= 8.0.0)
     webauthn (3.4.3)
       android_key_attestation (~> 0.3.0)
       bindata (~> 2.4)
@@ -437,7 +438,7 @@ GEM
     websocket-extensions (0.1.5)
     xpath (3.2.0)
       nokogiri (~> 1.8)
-    zeitwerk (2.7.4)
+    zeitwerk (2.7.5)
 
 PLATFORMS
   aarch64-linux
@@ -446,6 +447,7 @@ PLATFORMS
   arm-linux-gnu
   arm-linux-musl
   arm64-darwin-24
+  arm64-darwin-25
   x86_64-linux
   x86_64-linux-gnu
   x86_64-linux-musl
@@ -467,7 +469,7 @@ DEPENDENCIES
   propshaft
   public_suffix (~> 7.0)
   puma (>= 5.0)
-  rails (~> 8.1.1)
+  rails (~> 8.1.3)
   rotp (~> 6.3)
   rqrcode (~> 3.1)
   selenium-webdriver
@@ -488,4 +490,4 @@ DEPENDENCIES
   webauthn (~> 3.0)
 
 BUNDLED WITH
-  4.0.3
+  4.0.6

README.md

@@ -15,14 +15,20 @@ Do you host your own web apps? MeTube, Kavita, Audiobookshelf, Gitea, Grafana, P
 
 Clinch runs as a single Docker container, using SQLite as the database, the job queue (Solid Queue) and the shared cache (Solid Cache). The webserver, Puma, runs the job queue in-process, avoiding the need for another container.
 
-Clinch sits in a sweet spot between two excellent open-source identity solutions:
+Clinch sits in a sweet spot among several excellent open-source identity solutions:
 
 **[Authelia](https://www.authelia.com)** is a fantastic choice for those who prefer external user management through LDAP and enjoy comprehensive YAML-based configuration. It's lightweight, secure, and works beautifully with reverse proxies.
 
+**[VoidAuth](https://voidauth.app/)** is an open-source SSO provider with a similar feature set to Clinch — OIDC, ForwardAuth, passkeys, user management, and easy Docker deployment. If you're evaluating self-hosted auth solutions, it's well worth a look.
+
 **[Authentik](https://goauthentik.io)** is an enterprise-grade powerhouse offering extensive protocol support (OAuth2, SAML, LDAP, RADIUS), advanced policy engines, and distributed "outpost" architecture for complex deployments.
 
 **Clinch** offers a middle ground with built-in user management, a modern web interface, and focused SSO capabilities (OIDC + ForwardAuth). It's perfect for users who want self-hosted simplicity without external dependencies or enterprise complexity.
 
+- **[Passes the OpenID Connect Conformance Tests](https://www.certification.openid.net/plan-detail.html?plan=FbQNTJuYVzrzs&public=true)** — verified against the official OIDC test suite
+- **450+ tests, 1800+ assertions** — comprehensive test coverage across integration, model, controller, and security tests
+- **Single Docker container** — SQLite, job queue, and cache all in one process
+
 ---
 
 ## Screenshots
@@ -76,8 +82,6 @@ Apps that only need "who is it?", or you want available from the internet behind
 
 #### OpenID Connect (OIDC)
 
-**[OpenID Connect Conformance](https://www.certification.openid.net/plan-detail.html?plan=FbQNTJuYVzrzs&public=true)** - Clinch passes the official OpenID Connect conformance tests (valid as of [v0.8.6](https://github.com/dkam/clinch/releases/tag/0.8.6)).
-
 Standard OAuth2/OIDC provider with endpoints:
 - `/.well-known/openid-configuration` - Discovery endpoint
 - `/authorize` - Authorization endpoint with PKCE support
@@ -131,6 +135,32 @@ Works with reverse proxies (Caddy, Traefik, Nginx):
 
 **Note:** ForwardAuth requires applications to run on the same domain as Clinch (e.g., `app.yourdomain.com` with Clinch at `auth.yourdomain.com`) for secure session cookie sharing. Take a look at Authentik if you need multi domain support.
 
+#### API Keys (Bearer Tokens)
+
+For server-to-server access to ForwardAuth-protected services (e.g., a video player accessing WebDAV, rclone syncing files), Clinch supports API keys that work as bearer tokens — no browser or cookies needed.
+
+- **Token format:** `clk_<base64>` prefix for easy identification
+- **Storage:** HMAC-SHA256 hashed (plaintext shown once at creation, never stored)
+- **Scope:** Each key is tied to one ForwardAuth application and one user
+- **Expiration:** Optional — set a date or leave blank for no expiry
+- **Auth flow:** `Authorization: Bearer clk_...` header checked before cookie auth
+- **Failure response:** 401 JSON `{"error": "..."}` (no redirect)
+
+**Creating an API key:**
+1. Go to **Dashboard → Manage API Keys** (or `/api_keys`)
+2. Click **New API Key**, select a ForwardAuth application, and give it a name
+3. Copy the `clk_...` token — it's shown only once
+
+**Usage:**
+```bash
+curl -H "Authorization: Bearer clk_..." \
+     -H "X-Forwarded-Host: webdav.example.com" \
+     https://auth.example.com/api/verify
+# Returns 200 with X-Remote-User headers on success
+```
+
+API keys respect the same access controls as browser sessions — the user must have access to the application, the application must be active, and the user's account must be active.
+
 ### SMTP Integration
 Send emails for:
 - Invitation links (one-time token, 7-day expiry)
@@ -287,7 +317,7 @@ This is transparent to end users and requires no configuration.
 ## Setup & Installation
 
 ### Requirements
-- Ruby 3.3+
+- Ruby 4.0+
 - SQLite 3.8+
 - SMTP server (for sending emails)
 
@@ -701,7 +731,7 @@ user.revoke_all_consents!
 
 ### Running Tests
 
-Clinch has comprehensive test coverage with 341 tests covering integration, models, controllers, services, and system tests.
+Clinch has comprehensive test coverage with 450 tests covering integration, models, controllers, services, and system tests.
 
 ```bash
 # Run all tests
@@ -761,7 +791,7 @@ All security scans run automatically on every pull request and push to main via
 
 **Current Status:**
 - ✅ All security scans passing
-- ✅ 341 tests, 1349 assertions, 0 failures
+- ✅ 450 tests, 1818 assertions, 0 failures
 - ✅ No known dependency vulnerabilities
 - ✅ Phases 1-4 security hardening complete (18+ vulnerabilities fixed)
 - 🟡 3 outstanding security issues (all MEDIUM/LOW priority)

app/assets/tailwind/application.css

@@ -1 +1,29 @@
 @import "tailwindcss";
+@plugin "@tailwindcss/forms";
+@custom-variant dark (&:where(.dark, .dark *));
+
+@layer base {
+  input:where([type="text"], [type="email"], [type="password"], [type="number"], [type="url"], [type="tel"], [type="search"]),
+  textarea,
+  select {
+    padding: 0.5rem 0.75rem;
+  }
+
+  .dark input:where([type="text"], [type="email"], [type="password"], [type="number"], [type="url"], [type="tel"], [type="search"]),
+  .dark textarea,
+  .dark select {
+    background-color: var(--color-gray-800);
+    border-color: var(--color-gray-600);
+    color: var(--color-gray-100);
+  }
+
+  .dark input::placeholder,
+  .dark textarea::placeholder {
+    color: var(--color-gray-400);
+  }
+
+  .dark input:where([type="checkbox"], [type="radio"]) {
+    background-color: var(--color-gray-700);
+    border-color: var(--color-gray-500);
+  }
+}

app/controllers/admin/access_checks_controller.rb

@@ -0,0 +1,25 @@
+module Admin
+  class AccessChecksController < BaseController
+    def new
+      load_options
+    end
+
+    def create
+      load_options
+      @user = User.find_by(id: params[:user_id])
+      @application = Application.find_by(id: params[:application_id])
+      return render :new unless @user && @application
+
+      @allowed = @application.user_allowed?(@user)
+      @via = @user.groups & @application.allowed_groups
+      render :new
+    end
+
+    private
+
+    def load_options
+      @users = User.order(:email_address)
+      @applications = Application.order(:name)
+    end
+  end
+end

app/controllers/admin/applications_controller.rb

@@ -3,11 +3,31 @@ module Admin
     before_action :set_application, only: [:show, :edit, :update, :destroy, :regenerate_credentials]
 
     def index
-      @applications = Application.order(created_at: :desc)
+      @applications = Application.order(created_at: :desc).includes(:allowed_groups)
+
+      # Distinct active users that have access to each app, preloaded to avoid N+1.
+      @user_count_by_app = User.where(status: User.statuses[:active])
+        .joins(groups: :applications)
+        .group("applications.id")
+        .distinct
+        .count("users.id")
+
+      # Top-of-page summary
+      @total_users_with_access = User.where(status: User.statuses[:active])
+        .joins(groups: :applications)
+        .distinct
+        .count("users.id")
+      @total_groups_granting_access = Group.joins(:applications).distinct.count
     end
 
     def show
       @allowed_groups = @application.allowed_groups
+      @users_with_access = User.where(status: User.statuses[:active])
+        .joins(groups: :applications)
+        .where(applications: {id: @application.id})
+        .distinct
+        .includes(:groups)
+        .order(:email_address)
     end
 
     def new
@@ -104,7 +124,7 @@ module Admin
       permitted = params.require(:application).permit(
         :name, :slug, :app_type, :active, :redirect_uris, :description, :metadata,
         :domain_pattern, :landing_url, :access_token_ttl, :refresh_token_ttl, :id_token_ttl,
-        :icon, :backchannel_logout_uri, :is_public_client, :require_pkce, :skip_consent
+        :icon, :icon_dark, :backchannel_logout_uri, :is_public_client, :require_pkce, :skip_consent
       )
 
       # Handle headers_config - it comes as a JSON string from the text area

app/controllers/admin/groups_controller.rb

@@ -15,6 +15,7 @@ module Admin
     def new
       @group = Group.new
       @available_users = User.order(:email_address)
+      @available_applications = Application.order(:name)
     end
 
     def create
@@ -28,6 +29,7 @@ module Admin
           @group = Group.new
           @group.errors.add(:custom_claims, "must be valid JSON")
           @available_users = User.order(:email_address)
+          @available_applications = Application.order(:name)
           render :new, status: :unprocessable_entity
           return
         end
@@ -45,15 +47,23 @@ module Admin
           @group.users = User.where(id: user_ids)
         end
 
+        # Handle application assignments
+        if params[:group][:application_ids].present?
+          application_ids = params[:group][:application_ids].reject(&:blank?)
+          @group.applications = Application.where(id: application_ids)
+        end
+
         redirect_to admin_group_path(@group), notice: "Group created successfully."
       else
         @available_users = User.order(:email_address)
+        @available_applications = Application.order(:name)
         render :new, status: :unprocessable_entity
       end
     end
 
     def edit
       @available_users = User.order(:email_address)
+      @available_applications = Application.order(:name)
     end
 
     def update
@@ -66,6 +76,7 @@ module Admin
         rescue JSON::ParserError
           @group.errors.add(:custom_claims, "must be valid JSON")
           @available_users = User.order(:email_address)
+          @available_applications = Application.order(:name)
           render :edit, status: :unprocessable_entity
           return
         end
@@ -83,9 +94,18 @@ module Admin
           @group.users = []
         end
 
+        # Handle application assignments
+        if params[:group][:application_ids].present?
+          application_ids = params[:group][:application_ids].reject(&:blank?)
+          @group.applications = Application.where(id: application_ids)
+        else
+          @group.applications = []
+        end
+
         redirect_to admin_group_path(@group), notice: "Group updated successfully."
       else
         @available_users = User.order(:email_address)
+        @available_applications = Application.order(:name)
         render :edit, status: :unprocessable_entity
       end
     end
@@ -102,7 +122,7 @@ module Admin
     end
 
     def group_params
-      params.require(:group).permit(:name, :description, :custom_claims)
+      params.require(:group).permit(:name, :description, :custom_claims, :auto_assign, :admin)
     end
   end
 end

app/controllers/admin/users_controller.rb

@@ -7,27 +7,38 @@ module Admin
     end
 
     def show
+      @accessible_applications = Application.where(active: true)
+        .joins(:allowed_groups)
+        .where(groups: {id: @user.groups})
+        .distinct
+        .includes(:allowed_groups)
+        .order(:name)
     end
 
     def new
       @user = User.new
+      @available_groups = Group.order(:name)
     end
 
     def create
       @user = User.new(user_params)
       @user.password = SecureRandom.alphanumeric(16) if user_params[:password].blank?
       @user.status = :pending_invitation
+      @user.skip_auto_assign = true if params[:auto_assign] == "0"
 
       if @user.save
+        assign_groups_from_params(@user)
         InvitationsMailer.invite_user(@user).deliver_later
         redirect_to admin_users_path, notice: "User created successfully. Invitation email sent to #{@user.email_address}."
       else
+        @available_groups = Group.order(:name)
         render :new, status: :unprocessable_entity
       end
     end
 
     def edit
       @applications = Application.active.order(:name)
+      @available_groups = Group.order(:name)
     end
 
     def update
@@ -43,6 +54,7 @@ module Admin
         rescue JSON::ParserError
           @user.errors.add(:custom_claims, "must be valid JSON")
           @applications = Application.active.order(:name)
+          @available_groups = Group.order(:name)
           render :edit, status: :unprocessable_entity
           return
         end
@@ -52,9 +64,16 @@ module Admin
       end
 
       if @user.update(update_params)
+        unless assign_groups_from_params(@user)
+          @applications = Application.active.order(:name)
+          @available_groups = Group.order(:name)
+          render :edit, status: :unprocessable_entity
+          return
+        end
         redirect_to admin_users_path, notice: "User updated successfully."
       else
         @applications = Application.active.order(:name)
+        @available_groups = Group.order(:name)
         render :edit, status: :unprocessable_entity
       end
     end
@@ -122,15 +141,28 @@ module Admin
     end
 
     def user_params
-      # Base attributes that all admins can modify
+      params.require(:user).permit(:email_address, :username, :name, :password, :status, :totp_required, :custom_claims)
-      base_params = params.require(:user).permit(:email_address, :username, :name, :password, :status, :totp_required, :custom_claims)
-
-      # Only allow modifying admin status when editing other users (prevent self-demotion)
-      if params[:id] != Current.session.user.id.to_s
-        base_params[:admin] = params[:user][:admin] if params[:user][:admin].present?
     end
 
-      base_params
+    # Apply group_ids from the form, with a guard preventing self-demotion when
+    # the user is the last member of the last admin group. Returns true on
+    # success, false if a guard fired (caller should re-render).
+    def assign_groups_from_params(user)
+      return true unless params[:user].key?(:group_ids)
+
+      raw_ids = Array(params[:user][:group_ids]).reject(&:blank?).map(&:to_i)
+      new_groups = Group.where(id: raw_ids)
+
+      if user == Current.session.user
+        losing_admin = user.groups.where(admin: true).any? && new_groups.none?(&:admin?)
+        if losing_admin
+          user.errors.add(:base, "you cannot remove yourself from all administrator groups")
+          return false
+        end
+      end
+
+      user.groups = new_groups
+      true
     end
   end
 end

app/controllers/api/forward_auth_controller.rb

@@ -1,73 +1,58 @@
 module Api
   class ForwardAuthController < ApplicationController
-    # ForwardAuth endpoints need session storage for return URL
     allow_unauthenticated_access
     skip_before_action :verify_authenticity_token
-    # No rate limiting on forward_auth endpoint - proxy middleware hits this frequently
+
+    before_action :check_forward_auth_rate_limit
+    after_action :track_failed_forward_auth_attempt
 
     # GET /api/verify
-    # This endpoint is called by reverse proxies (Traefik, Caddy, nginx)
+    # Called by reverse proxies (Traefik, Caddy, nginx) to verify authentication and authorization.
-    # to verify if a user is authenticated and authorized to access a domain
     def verify
-      # Note: app_slug parameter is no longer used - we match domains directly with Application (forward_auth type)
-
-      # Check for bearer token first (API keys for server-to-server auth)
       bearer_result = authenticate_bearer_token
       return bearer_result if bearer_result
 
-      # Check for one-time forward auth token first (to handle race condition)
       session_id = check_forward_auth_token
-
-      # If no token found, try to get session from cookie
       session_id ||= extract_session_id
 
       unless session_id
-        # No session cookie or token - user is not authenticated
         return render_unauthorized("No session cookie")
       end
 
-      # Find the session with user association (eager loading for performance)
+      session = Session.includes(user: :groups).find_by(id: session_id)
-      session = Session.includes(:user).find_by(id: session_id)
       unless session
-        # Invalid session
         return render_unauthorized("Invalid session")
       end
 
-      # Check if session is expired
       if session.expired?
         session.destroy
         return render_unauthorized("Session expired")
       end
 
-      # Update last activity (skip validations for performance)
+      # Debounce last_activity_at updates (at most once per minute)
+      if session.last_activity_at.nil? || session.last_activity_at < 1.minute.ago
         session.update_column(:last_activity_at, Time.current)
+      end
 
-      # Get the user (already loaded via includes(:user))
       user = session.user
       unless user.active?
         return render_unauthorized("User account is not active")
       end
 
-      # Check for forward auth application authorization
-      # Get the forwarded host for domain matching
       forwarded_host = request.headers["X-Forwarded-Host"] || request.headers["Host"]
+      app = nil
 
       if forwarded_host.present?
-        # Load all forward auth applications (including inactive ones) for security checks
+        apps = cached_forward_auth_apps
-        # Preload groups to avoid N+1 queries in user_allowed? checks
-        apps = Application.forward_auth.includes(:allowed_groups)
 
-        # Find matching forward auth application for this domain
         app = apps.find { |a| a.matches_domain?(forwarded_host) }
 
         if app
-          # Check if application is active
           unless app.active?
             Rails.logger.info "ForwardAuth: Access denied to #{forwarded_host} - application is inactive"
             return render_forbidden("No authentication rule configured for this domain")
           end
 
-          # Check if user is allowed by this application
           unless app.user_allowed?(user)
             Rails.logger.info "ForwardAuth: User #{user.email_address} denied access to #{forwarded_host} by app #{app.domain_pattern}"
             return render_forbidden("You do not have permission to access this domain")
@@ -75,7 +60,6 @@ module Api
 
           Rails.logger.info "ForwardAuth: User #{user.email_address} granted access to #{forwarded_host} by app #{app.domain_pattern} (policy: #{app.policy_for_user(user)})"
         else
-          # No application found - DENY by default (fail-closed security)
           Rails.logger.info "ForwardAuth: Access denied to #{forwarded_host} - no authentication rule configured"
           return render_forbidden("No authentication rule configured for this domain")
         end
@@ -83,8 +67,6 @@ module Api
         Rails.logger.info "ForwardAuth: User #{user.email_address} authenticated (no domain specified)"
       end
 
-      # User is authenticated and authorized
-      # Return 200 with user information headers using app-specific configuration
       headers = if app
         app.headers_for_user(user)
       else
@@ -95,7 +77,7 @@ module Api
           when :username
             [header_name, user.username] if user.username.present?
           when :groups
-            user.groups.any? ? [header_name, user.groups.pluck(:name).join(",")] : nil
+            user.groups.any? ? [header_name, user.groups.map(&:name).join(",")] : nil
           when :admin
             [header_name, user.admin? ? "true" : "false"]
           end
@@ -103,20 +85,45 @@ module Api
       end
 
       headers.each { |key, value| response.headers[key] = value }
+      Rails.logger.debug "ForwardAuth: Headers sent: #{headers.keys.join(", ")}" if headers.any?
 
-      # Log what headers we're sending (helpful for debugging)
-      if headers.any?
-        Rails.logger.debug "ForwardAuth: Headers sent: #{headers.keys.join(", ")}"
-      else
-        Rails.logger.debug "ForwardAuth: No headers sent (access only)"
-      end
-
-      # Return 200 OK with no body
       head :ok
     end
 
     private
 
+    def fa_cache
+      Rails.application.config.forward_auth_cache
+    end
+
+    def cached_forward_auth_apps
+      fa_cache.fetch("fa_apps", expires_in: 5.minutes) do
+        Application.forward_auth.includes(:allowed_groups).to_a
+      end
+    end
+
+    RATE_LIMIT_MAX_FAILURES = 50
+    RATE_LIMIT_WINDOW = 1.minute
+
+    def check_forward_auth_rate_limit
+      count = fa_cache.read("fa_fail:#{request.remote_ip}")
+      return unless count && count >= RATE_LIMIT_MAX_FAILURES
+
+      response.headers["Retry-After"] = "60"
+      head :too_many_requests
+    end
+
+    def track_failed_forward_auth_attempt
+      return unless response.status.in?([401, 403, 302])
+      return if response.status == 302 && !response.headers["X-Auth-Reason"]
+
+      cache_key = "fa_fail:#{request.remote_ip}"
+      # Use increment to avoid resetting TTL on each failure (fixed window)
+      unless fa_cache.increment(cache_key)
+        fa_cache.write(cache_key, 1, expires_in: RATE_LIMIT_WINDOW)
+      end
+    end
+
     def authenticate_bearer_token
       auth_header = request.headers["Authorization"]
       return nil unless auth_header&.start_with?("Bearer ")
@@ -155,87 +162,59 @@ module Api
     end
 
     def check_forward_auth_token
-      # Check for one-time token in query parameters (for race condition handling)
       token = params[:fa_token]
-      return nil unless token.present?
+      return nil if token.blank?
 
-      # Try to get session ID from cache
+      cached = Rails.cache.read("forward_auth_token:#{token}")
-      session_id = Rails.cache.read("forward_auth_token:#{token}")
+      return nil unless cached.is_a?(Hash)
-      return nil unless session_id
 
-      # Verify the session exists and is valid
+      # The token is bound to the host that created it. If the request is
-      session = Session.find_by(id: session_id)
+      # arriving at a different host, refuse — and do NOT burn the cache
+      # entry, so that the legitimate destination can still redeem within
+      # the 60s TTL.
+      request_host = (request.headers["X-Forwarded-Host"] || request.headers["Host"])
+        .to_s.sub(/:\d+\z/, "").downcase
+      return nil if request_host.blank?
+      return nil unless cached[:host] == request_host
+
+      session = Session.find_by(id: cached[:session_id])
       return nil unless session && !session.expired?
 
-      # Delete the token immediately (one-time use)
       Rails.cache.delete("forward_auth_token:#{token}")
-
+      cached[:session_id]
-      session_id
     end
 
     def extract_session_id
-      # Extract session ID from cookie
-      # Rails uses signed cookies by default
       cookies.signed[:session_id]
     end
 
-    def extract_app_from_headers
-      # This method is deprecated since we now use Application (forward_auth type) domain matching
-      # Keeping it for backward compatibility but it's no longer used
-      nil
-    end
-
     def render_unauthorized(reason = nil)
       Rails.logger.info "ForwardAuth: Unauthorized - #{reason}"
-
-      # Set auth reason header for debugging (like Authelia)
       response.headers["X-Auth-Reason"] = reason if reason.present?
 
-      # Get the redirect URL from query params or construct default
       redirect_url = validate_redirect_url(params[:rd])
       base_url = determine_base_url(redirect_url)
 
-      # Set the original URL that user was trying to access
-      # This will be used after authentication
       original_host = request.headers["X-Forwarded-Host"]
       original_uri = request.headers["X-Forwarded-Uri"] || request.headers["X-Forwarded-Path"] || "/"
 
-      # Debug logging to see what headers we're getting
-      Rails.logger.info "ForwardAuth Headers: Host=#{request.headers["Host"]}, X-Forwarded-Host=#{original_host}, X-Forwarded-Uri=#{request.headers["X-Forwarded-Uri"]}, X-Forwarded-Path=#{request.headers["X-Forwarded-Path"]}"
-
       original_url = if original_host
-        # Use the forwarded host and URI (original behavior)
         "https://#{original_host}#{original_uri}"
       else
-        # Fallback: use the validated redirect URL or default
+        redirect_url || base_url
-        redirect_url || "https://clinch.aapamilne.com"
       end
 
-      # Debug: log what we're redirecting to after login
-      Rails.logger.info "ForwardAuth: Will redirect to after login: #{original_url}"
-
       session[:return_to_after_authenticating] = original_url
 
-      # Build login URL with redirect parameters like Authelia
+      login_params = { rd: original_url, rm: request.method }
-      login_params = {
-        rd: original_url,
-        rm: request.method
-      }
       login_url = "#{base_url}/signin?#{login_params.to_query}"
 
-      # Return 302 Found directly to login page (matching Authelia)
-      # This is the same as Authelia's StatusFound response
-      Rails.logger.info "Setting 302 redirect to: #{login_url}"
       redirect_to login_url, allow_other_host: true, status: :found
     end
 
     def render_forbidden(reason = nil)
       Rails.logger.info "ForwardAuth: Forbidden - #{reason}"
-
-      # Set auth reason header for debugging (like Authelia)
       response.headers["X-Auth-Reason"] = reason if reason.present?
-
-      # Return 403 Forbidden
       head :forbidden
     end
 
@@ -244,19 +223,14 @@ module Api
 
       begin
         uri = URI.parse(url)
-
-        # Only allow HTTP/HTTPS schemes
         return nil unless uri.is_a?(URI::HTTP) || uri.is_a?(URI::HTTPS)
-
-        # Only allow HTTPS in production
         return nil unless Rails.env.development? || uri.scheme == "https"
 
         redirect_domain = uri.host.downcase
         return nil unless redirect_domain.present?
 
-        # Check against our ForwardAuth applications
+        matching_app = cached_forward_auth_apps.find do |app|
-        matching_app = Application.forward_auth.active.find do |app|
+          app.active? && app.matches_domain?(redirect_domain)
-          app.matches_domain?(redirect_domain)
         end
 
         matching_app ? url : nil
@@ -265,32 +239,19 @@ module Api
       end
     end
 
-    def domain_has_forward_auth_rule?(domain)
-      return false if domain.blank?
-
-      Application.forward_auth.active.any? do |app|
-        app.matches_domain?(domain.downcase)
-      end
-    end
-
     def determine_base_url(redirect_url)
-      # If we have a valid redirect URL, use it
       return redirect_url if redirect_url.present?
 
-      # Try CLINCH_HOST environment variable first
       if ENV["CLINCH_HOST"].present?
         host = ENV["CLINCH_HOST"]
-        # Ensure URL has https:// protocol
         host.match?(/^https?:\/\//) ? host : "https://#{host}"
       else
-        # Fallback to the request host
         request_host = request.host || request.headers["X-Forwarded-Host"]
         if request_host.present?
           Rails.logger.warn "ForwardAuth: CLINCH_HOST not set, using request host: #{request_host}"
           "https://#{request_host}"
         else
-          # No host information available - raise exception to force proper configuration
+          raise StandardError, "ForwardAuth: CLINCH_HOST environment variable not set and no request host available."
-          raise StandardError, "ForwardAuth: CLINCH_HOST environment variable not set and no request host available. Please configure CLINCH_HOST properly."
         end
       end
     end

app/controllers/api_keys_controller.rb

@@ -14,6 +14,7 @@ class ApiKeysController < ApplicationController
     @api_key = Current.session.user.api_keys.build(api_key_params)
 
     if @api_key.save
+      SecurityMailer.api_key_created(Current.session.user, name: @api_key.name, **security_event_context).deliver_later
       flash[:api_key_token] = @api_key.plaintext_token
       redirect_to api_key_path(@api_key)
     else
@@ -31,6 +32,7 @@ class ApiKeysController < ApplicationController
 
   def destroy
     @api_key.revoke!
+    SecurityMailer.api_key_revoked(@api_key.user, name: @api_key.name, **security_event_context).deliver_later
     redirect_to api_keys_path, notice: "API key revoked."
   end
 

app/controllers/application_controller.rb

@@ -14,6 +14,10 @@ class ApplicationController < ActionController::Base
 
   private
 
+  def security_event_context
+    {ip: request.remote_ip, user_agent: request.user_agent, occurred_at: Time.current}
+  end
+
   # Remove a query parameter from a URL using proper URI parsing
   # More robust than regex - handles URL encoding, edge cases, etc.
   #
@@ -28,12 +32,10 @@ class ApplicationController < ActionController::Base
     uri = URI.parse(url)
     return url unless uri.query
 
-    # Parse query string into hash
+    params = Rack::Utils.parse_query(uri.query)
-    params = CGI.parse(uri.query)
     params.delete(param_name)
 
-    # Rebuild query string (empty string if no params left)
+    uri.query = params.any? ? Rack::Utils.build_query(params) : nil
-    uri.query = params.any? ? URI.encode_www_form(params) : nil
     uri.to_s
   rescue URI::InvalidURIError
     url

app/controllers/concerns/authentication.rb

@@ -31,7 +31,7 @@ module Authentication
   end
 
   def find_session_by_cookie
-    Session.find_by(id: cookies.signed[:session_id]) if cookies.signed[:session_id]
+    Session.active.find_by(id: cookies.signed[:session_id]) if cookies.signed[:session_id]
   end
 
   def request_authentication
@@ -43,9 +43,35 @@ module Authentication
     session.delete(:return_to_after_authenticating) || root_url
   end
 
-  def start_new_session_for(user, acr: "1")
+  # When a sign-in form will eventually redirect through /oauth/authorize to an
+  # external client, Safari enforces CSP form-action against every hop in the
+  # redirect chain. With the default form-action 'self', the final cross-origin
+  # hop to the OAuth client's redirect_uri gets blocked. Add the redirect_uri
+  # host to form-action so the chain completes.
+  def allow_oauth_redirect_in_csp
+    stored = session[:return_to_after_authenticating]
+    return if stored.blank?
+
+    uri = URI.parse(stored)
+    return unless uri.path&.start_with?("/oauth/")
+
+    redirect_uri = Rack::Utils.parse_query(uri.query.to_s)["redirect_uri"]
+    return if redirect_uri.blank?
+
+    redirect_host = URI.parse(redirect_uri).host
+    return if redirect_host.blank?
+
+    csp = request.content_security_policy
+    return unless csp&.respond_to?(:form_action) && csp.form_action.respond_to?(:<<)
+
+    csp.form_action << "https://#{redirect_host}"
+  rescue URI::InvalidURIError
+    nil
+  end
+
+  def start_new_session_for(user, acr: "1", remember_me: false)
     user.update!(last_sign_in_at: Time.current)
-    user.sessions.create!(user_agent: request.user_agent, ip_address: request.remote_ip, acr: acr).tap do |session|
+    user.sessions.create!(user_agent: request.user_agent, ip_address: request.remote_ip, acr: acr, remember_me: remember_me).tap do |session|
       Current.session = session
 
       # Extract root domain for cross-subdomain cookies (required for forward auth)
@@ -58,8 +84,8 @@ module Authentication
         {
           value: session.id,
           httponly: true,
-          same_site: :none,  # Allow cross-site cookies for OIDC testing
+          same_site: :lax,
-          secure: true        # Required for SameSite=None
+          secure: true
         }
       else
         {
@@ -73,7 +99,15 @@ module Authentication
       # Set domain for cross-subdomain authentication if we can extract it
       cookie_options[:domain] = domain if domain.present?
 
+      # When "Remember me" is off, issue a browser-session cookie (no Expires)
+      # so closing the browser signs the user out — especially important on
+      # shared devices. The server Session#expires_at still enforces the
+      # 24h / 30d window regardless.
+      if remember_me
         cookies.signed.permanent[:session_id] = cookie_options
+      else
+        cookies.signed[:session_id] = cookie_options
+      end
 
       # Create a one-time token for immediate forward auth after authentication
       # This solves the race condition where browser hasn't processed cookie yet
@@ -130,35 +164,35 @@ module Authentication
   end
 
   # Create a one-time token for forward auth to handle the race condition
-  # where the browser hasn't processed the session cookie yet
+  # where the browser hasn't processed the session cookie yet.
+  #
+  # The token is bound to the destination host so that anyone who observes
+  # the token (Referer leaks, access logs, JS monitors) cannot redeem it for
+  # a different application within the 60-second TTL.
   def create_forward_auth_token(session_obj)
-    # Generate a secure random token
+    controller_session = session
-    token = SecureRandom.urlsafe_base64(32)
+    return unless controller_session[:return_to_after_authenticating].present?
 
-    # Store it with an expiry of 60 seconds
+    uri = URI.parse(controller_session[:return_to_after_authenticating])
+
+    # OAuth flow handles its own session propagation — no fa_token needed.
+    return if uri.path&.start_with?("/oauth/")
+
+    # Path-only URLs are same-origin on Clinch; the cookie race doesn't apply
+    # and we have no destination host to bind against.
+    bound_host = uri.hostname&.downcase
+    return if bound_host.blank?
+
+    token = SecureRandom.urlsafe_base64(32)
     Rails.cache.write(
       "forward_auth_token:#{token}",
-      session_obj.id,
+      { session_id: session_obj.id, host: bound_host },
       expires_in: 60.seconds
     )
 
-    # Set the token as a query parameter on the redirect URL
-    # We need to store this in the controller's session
-    controller_session = session
-    if controller_session[:return_to_after_authenticating].present?
-      original_url = controller_session[:return_to_after_authenticating]
-      uri = URI.parse(original_url)
-
-      # Skip adding fa_token for OAuth URLs (OAuth flow should not have forward auth tokens)
-      unless uri.path&.start_with?("/oauth/")
-        # Add token as query parameter
     query_params = URI.decode_www_form(uri.query || "").to_h
     query_params["fa_token"] = token
     uri.query = URI.encode_www_form(query_params)
-
-        # Update the session with the tokenized URL
     controller_session[:return_to_after_authenticating] = uri.to_s
   end
 end
-  end
-end

app/controllers/oidc_controller.rb

@@ -1,9 +1,16 @@
 class OidcController < ApplicationController
+  SUPPORTED_SCOPES = %w[openid profile email groups offline_access].freeze
+
   # Discovery and JWKS endpoints are public
   # authorize is also unauthenticated to handle prompt=none and prompt=login specially
   allow_unauthenticated_access only: [:discovery, :jwks, :token, :revoke, :userinfo, :logout, :authorize]
   skip_before_action :verify_authenticity_token, only: [:token, :revoke, :userinfo, :logout, :authorize, :consent]
 
+  # RFC 6749 §4.1.2.1: client_id and redirect_uri must be validated *before* any
+  # other error can be reported via redirect. Failures here render a plain page.
+  before_action :set_application, only: :authorize
+  before_action :validate_redirect_uri, only: :authorize
+
   # Rate limiting to prevent brute force and abuse
   rate_limit to: 60, within: 1.minute, only: [:token, :revoke], with: -> {
     render json: {error: "too_many_requests", error_description: "Rate limit exceeded. Try again later."}, status: :too_many_requests
@@ -29,7 +36,7 @@ class OidcController < ApplicationController
       grant_types_supported: ["authorization_code", "refresh_token"],
       subject_types_supported: ["pairwise"],
       id_token_signing_alg_values_supported: ["RS256"],
-      scopes_supported: ["openid", "profile", "email", "groups", "offline_access"],
+      scopes_supported: SUPPORTED_SCOPES,
       token_endpoint_auth_methods_supported: ["client_secret_post", "client_secret_basic"],
       claims_supported: [
         "sub",              # Always included
@@ -42,7 +49,7 @@ class OidcController < ApplicationController
         # Note: Custom claims are also supported but not listed here
         # ID-token-only claims (auth_time, acr, azp, at_hash, nonce) are not listed
       ],
-      code_challenge_methods_supported: ["plain", "S256"],
+      code_challenge_methods_supported: ["S256"],
       backchannel_logout_supported: true,
       backchannel_logout_session_supported: true,
       request_parameter_supported: false,
@@ -59,7 +66,8 @@ class OidcController < ApplicationController
 
   # GET /oauth/authorize
   def authorize
-    # Get parameters (ignore forward auth tokens and other unknown params)
+    # @application and a validated redirect_uri are guaranteed by the before_actions.
+    # Read the remaining parameters (ignore forward auth tokens and other unknown params).
     client_id = params[:client_id]
     redirect_uri = params[:redirect_uri]
     state = params[:state]
@@ -67,57 +75,10 @@ class OidcController < ApplicationController
     scope = params[:scope] || "openid"
     response_type = params[:response_type]
     code_challenge = params[:code_challenge]
-    code_challenge_method = params[:code_challenge_method] || "plain"
+    code_challenge_method = params[:code_challenge_method] || "S256"
-
-    # Validate client_id first (required before we can look up the application)
-    # OAuth2 RFC 6749 Section 4.1.2.1: If client_id is missing/invalid, show error page (don't redirect)
-    unless client_id.present?
-      render plain: "Invalid request: client_id is required", status: :bad_request
-      return
-    end
-
-    # Find the application by client_id
-    @application = Application.find_by(client_id: client_id, app_type: "oidc")
-    unless @application
-      # Log all OIDC applications for debugging
-      all_oidc_apps = Application.where(app_type: "oidc")
-      Rails.logger.error "OAuth: Invalid request - application not found for client_id: #{client_id}"
-      Rails.logger.error "OAuth: Available OIDC applications: #{all_oidc_apps.pluck(:id, :client_id, :name)}"
-
-      error_msg = if Rails.env.development?
-        "Invalid request: Application not found for client_id '#{client_id}'. Available OIDC applications: #{all_oidc_apps.pluck(:name, :client_id).map { |name, id| "#{name} (#{id})" }.join(", ")}"
-      else
-        "Invalid request: Application not found"
-      end
-
-      render plain: error_msg, status: :bad_request
-      return
-    end
-
-    # Validate redirect_uri presence and format
-    # OAuth2 RFC 6749 Section 4.1.2.1: If redirect_uri is missing/invalid, show error page (don't redirect)
-    unless redirect_uri.present?
-      render plain: "Invalid request: redirect_uri is required", status: :bad_request
-      return
-    end
-
-    # Validate redirect URI matches one of the registered URIs
-    unless @application.parsed_redirect_uris.include?(redirect_uri)
-      Rails.logger.error "OAuth: Invalid request - redirect URI mismatch. Expected: #{@application.parsed_redirect_uris}, Got: #{redirect_uri}"
-
-      # For development, show detailed error
-      error_msg = if Rails.env.development?
-        "Invalid request: Redirect URI mismatch. Application is configured for: #{@application.parsed_redirect_uris.join(", ")}, but received: #{redirect_uri}"
-      else
-        "Invalid request: Redirect URI not registered for this application"
-      end
-
-      render plain: error_msg, status: :bad_request
-      return
-    end
 
     # ============================================================================
-    # At this point we have a valid client_id and redirect_uri
+    # client_id and redirect_uri are already validated (see before_actions).
     # All subsequent errors should redirect back to the client with error parameters
     # per OAuth2 RFC 6749 Section 4.1.2.1
     # ============================================================================
@@ -146,10 +107,10 @@ class OidcController < ApplicationController
 
     # Validate PKCE parameters if present (now we can safely redirect with error)
     if code_challenge.present?
-      unless %w[plain S256].include?(code_challenge_method)
+      unless code_challenge_method == "S256"
         Rails.logger.error "OAuth: Invalid code_challenge_method: #{code_challenge_method}"
         error_uri = "#{redirect_uri}?error=invalid_request"
-        error_uri += "&error_description=#{CGI.escape("Invalid code_challenge_method: must be 'plain' or 'S256'")}"
+        error_uri += "&error_description=#{CGI.escape("Invalid code_challenge_method: only 'S256' is supported")}"
         error_uri += "&state=#{CGI.escape(state)}" if state.present?
         redirect_to error_uri, allow_other_host: true
         return
@@ -166,6 +127,12 @@ class OidcController < ApplicationController
       end
     end
 
+    # Normalize requested scopes to the set we support. Needed here so claims
+    # validation below can check claim→scope coverage against what will actually
+    # be granted.
+    requested_scopes = scope.split(" ") & SUPPORTED_SCOPES
+    scope = requested_scopes.join(" ")
+
     # Parse claims parameter (JSON string) for OIDC claims request
     # Per OIDC Core §5.5: The claims parameter is a JSON object that requests
     # specific claims to be returned in the id_token and/or userinfo
@@ -289,7 +256,12 @@ class OidcController < ApplicationController
       return
     end
 
-    requested_scopes = scope.split(" ")
+    unless requested_scopes.include?("openid")
+      error_uri = "#{redirect_uri}?error=invalid_scope&error_description=#{CGI.escape("The 'openid' scope is required")}"
+      error_uri += "&state=#{CGI.escape(state)}" if state.present?
+      redirect_to error_uri, allow_other_host: true
+      return
+    end
 
     # Check if application is configured to skip consent
     # If so, automatically create consent and proceed without showing consent screen
@@ -420,8 +392,7 @@ class OidcController < ApplicationController
 
     user = Current.session.user
 
-    # Record user consent
+    requested_scopes = oauth_params["scope"].split(" ") & SUPPORTED_SCOPES
-    requested_scopes = oauth_params["scope"].split(" ")
     parsed_claims = begin
       JSON.parse(oauth_params["claims_requests"])
     rescue
@@ -539,15 +510,12 @@ class OidcController < ApplicationController
 
         # Check if code has already been used (CRITICAL: check AFTER locking)
         if auth_code.used?
-          # Per OAuth 2.0 spec, if an auth code is reused, revoke all tokens issued from it
+          # Per OAuth 2.0 spec, if an auth code is reused, revoke every token
+          # descended from it (both generations across any rotations).
           Rails.logger.warn "OAuth Security: Authorization code reuse detected for code #{auth_code.id}"
-
+          now = Time.current
-          # Revoke all access tokens issued from this authorization code
+          auth_code.oidc_access_tokens.where(revoked_at: nil).update_all(revoked_at: now)
-          OidcAccessToken.where(
+          auth_code.oidc_refresh_tokens.where(revoked_at: nil).update_all(revoked_at: now)
-            application: application,
-            user: auth_code.user,
-            created_at: auth_code.created_at..Time.current
-          ).update_all(expires_at: Time.current)
 
           render json: {
             error: "invalid_grant",
@@ -588,7 +556,8 @@ class OidcController < ApplicationController
         access_token_record = OidcAccessToken.create!(
           application: application,
           user: user,
-          scope: auth_code.scope
+          scope: auth_code.scope,
+          oidc_authorization_code: auth_code
         )
 
         # Generate refresh token (opaque, with hashing)
@@ -596,6 +565,7 @@ class OidcController < ApplicationController
           application: application,
           user: user,
           oidc_access_token: access_token_record,
+          oidc_authorization_code: auth_code,
           scope: auth_code.scope,
           auth_time: auth_code.auth_time,
           acr: auth_code.acr
@@ -720,10 +690,15 @@ class OidcController < ApplicationController
     refresh_token_record.revoke!
 
     # Generate new access token record (opaque token with BCrypt hashing)
+    # Carry the authorization-code FK forward across rotations so replay
+    # revocation reaches every descendant token in the chain.
+    issuing_auth_code = refresh_token_record.oidc_authorization_code
+
     new_access_token = OidcAccessToken.create!(
       application: application,
       user: user,
-      scope: refresh_token_record.scope
+      scope: refresh_token_record.scope,
+      oidc_authorization_code: issuing_auth_code
     )
 
     # Generate new refresh token (token rotation)
@@ -731,6 +706,7 @@ class OidcController < ApplicationController
       application: application,
       user: user,
       oidc_access_token: new_access_token,
+      oidc_authorization_code: issuing_auth_code,
       scope: refresh_token_record.scope,
       token_family_id: refresh_token_record.token_family_id,  # Keep same family for rotation tracking
       auth_time: refresh_token_record.auth_time,  # Carry over original auth_time
@@ -1000,6 +976,55 @@ class OidcController < ApplicationController
 
   private
 
+  # Look up @application from client_id. RFC 6749 §4.1.2.1 requires that an
+  # invalid client_id be reported on-page, not via redirect.
+  def set_application
+    client_id = params[:client_id]
+
+    unless client_id.present?
+      render plain: "Invalid request: client_id is required", status: :bad_request
+      return
+    end
+
+    @application = Application.find_by(client_id: client_id, app_type: "oidc")
+    return if @application
+
+    Rails.logger.error "OAuth: Invalid request - application not found for client_id: #{client_id}"
+
+    error_msg = if Rails.env.development?
+      all_oidc_apps = Application.where(app_type: "oidc")
+      Rails.logger.error "OAuth: Available OIDC applications: #{all_oidc_apps.pluck(:id, :client_id, :name)}"
+      "Invalid request: Application not found for client_id '#{client_id}'. Available OIDC applications: #{all_oidc_apps.pluck(:name, :client_id).map { |name, id| "#{name} (#{id})" }.join(", ")}"
+    else
+      "Invalid request: Application not found"
+    end
+
+    render plain: error_msg, status: :bad_request
+  end
+
+  # Confirm the redirect_uri param is present and registered on @application.
+  # Must run after set_application. Errors render on-page per RFC 6749 §4.1.2.1.
+  def validate_redirect_uri
+    redirect_uri = params[:redirect_uri]
+
+    unless redirect_uri.present?
+      render plain: "Invalid request: redirect_uri is required", status: :bad_request
+      return
+    end
+
+    return if @application.parsed_redirect_uris.include?(redirect_uri)
+
+    Rails.logger.error "OAuth: Invalid request - redirect URI mismatch. Expected: #{@application.parsed_redirect_uris}, Got: #{redirect_uri}"
+
+    error_msg = if Rails.env.development?
+      "Invalid request: Redirect URI mismatch. Application is configured for: #{@application.parsed_redirect_uris.join(", ")}, but received: #{redirect_uri}"
+    else
+      "Invalid request: Redirect URI not registered for this application"
+    end
+
+    render plain: error_msg, status: :bad_request
+  end
+
   def validate_pkce(application, auth_code, code_verifier)
     # Check if PKCE is required for this application
     pkce_required = application.requires_pkce?
@@ -1041,16 +1066,14 @@ class OidcController < ApplicationController
 
     # Recreate code challenge based on method
     expected_challenge = case auth_code.code_challenge_method
-    when "plain"
-      code_verifier
     when "S256"
       Base64.urlsafe_encode64(Digest::SHA256.digest(code_verifier), padding: false)
     else
       return {
         valid: false,
-        error: "server_error",
+        error: "invalid_request",
-        error_description: "Unsupported code challenge method",
+        error_description: "Unsupported code challenge method: only 'S256' is supported",
-        status: :internal_server_error
+        status: :bad_request
       }
     end
 
@@ -1156,6 +1179,7 @@ class OidcController < ApplicationController
   # id_token and/or userinfo keys, each mapping to claim requests
   def parse_claims_parameter(claims_string)
     return {} if claims_string.blank?
+    return nil if claims_string.length > 4096
 
     parsed = JSON.parse(claims_string)
     return nil unless parsed.is_a?(Hash)

app/controllers/passwords_controller.rb

@@ -20,6 +20,7 @@ class PasswordsController < ApplicationController
 
   def update
     if @user.update(params.permit(:password, :password_confirmation))
+      SecurityMailer.password_changed(@user, **security_event_context).deliver_later
       @user.sessions.destroy_all
       redirect_to signin_path, notice: "Password has been reset."
     else

app/controllers/profiles_controller.rb

@@ -15,6 +15,7 @@ class ProfilesController < ApplicationController
       end
 
       if @user.update(password_params)
+        SecurityMailer.password_changed(@user, **security_event_context).deliver_later
         redirect_to profile_path, notice: "Password updated successfully."
       else
         render :show, status: :unprocessable_entity
@@ -27,7 +28,15 @@ class ProfilesController < ApplicationController
         return
       end
 
+      old_email = @user.email_address
       if @user.update(email_params)
+        new_email = @user.email_address
+        if old_email != new_email
+          context = security_event_context
+          [old_email, new_email].uniq.each do |recipient|
+            SecurityMailer.email_address_changed(@user, recipient: recipient, old_email: old_email, new_email: new_email, **context).deliver_later
+          end
+        end
         redirect_to profile_path, notice: "Email updated successfully."
       else
         render :show, status: :unprocessable_entity

app/controllers/sessions_controller.rb

@@ -20,14 +20,16 @@ class SessionsController < ApplicationController
       begin
         uri = URI.parse(session[:return_to_after_authenticating])
         if uri.query.present?
-          query_params = CGI.parse(uri.query)
+          query_params = Rack::Utils.parse_query(uri.query)
-          @login_hint = query_params["login_hint"]&.first
+          @login_hint = query_params["login_hint"]
         end
       rescue URI::InvalidURIError
         # Ignore parsing errors
       end
     end
 
+    allow_oauth_redirect_in_csp
+
     respond_to do |format|
       format.html # render HTML login page
       format.json { render json: {error: "Authentication required"}, status: :unauthorized }
@@ -76,6 +78,7 @@ class SessionsController < ApplicationController
       # TOTP is enabled, proceed to verification
       # Store user ID in session temporarily for TOTP verification
       session[:pending_totp_user_id] = user.id
+      session[:pending_remember_me] = remember_me?
       # Preserve the redirect URL through TOTP verification (after validation)
       if params[:rd].present?
         validated_url = validate_redirect_url(params[:rd])
@@ -86,7 +89,7 @@ class SessionsController < ApplicationController
     end
 
     # Sign in successful (password only)
-    start_new_session_for user, acr: "1"
+    start_new_session_for user, acr: "1", remember_me: remember_me?
 
     # Use status: :see_other to ensure browser makes a GET request
     # This prevents Turbo from converting it to a TURBO_STREAM request
@@ -118,6 +121,8 @@ class SessionsController < ApplicationController
         return
       end
 
+      remember_me = session.delete(:pending_remember_me) || false
+
       # Try TOTP verification first (password + TOTP = 2FA)
       if user.verify_totp(code)
         session.delete(:pending_totp_user_id)
@@ -125,7 +130,7 @@ class SessionsController < ApplicationController
         if session[:totp_redirect_url].present?
           session[:return_to_after_authenticating] = session.delete(:totp_redirect_url)
         end
-        start_new_session_for user, acr: "2"
+        start_new_session_for user, acr: "2", remember_me: remember_me
         redirect_to after_authentication_url, notice: "Signed in successfully.", allow_other_host: true
         return
       end
@@ -137,7 +142,7 @@ class SessionsController < ApplicationController
         if session[:totp_redirect_url].present?
           session[:return_to_after_authenticating] = session.delete(:totp_redirect_url)
         end
-        start_new_session_for user, acr: "2"
+        start_new_session_for user, acr: "2", remember_me: remember_me
         redirect_to after_authentication_url, notice: "Signed in successfully using backup code.", allow_other_host: true
         return
       end
@@ -147,6 +152,12 @@ class SessionsController < ApplicationController
       nil
     end
 
+    # Pass data to the view for passkey option
+    @user_has_webauthn = user&.can_authenticate_with_webauthn?
+    @pending_email = user&.email_address
+
+    allow_oauth_redirect_in_csp
+
     # Just render the form
   end
 
@@ -185,6 +196,7 @@ class SessionsController < ApplicationController
 
     # Store user ID in session for verification
     session[:pending_webauthn_user_id] = user.id
+    session[:pending_remember_me] = remember_me?
 
     # Store redirect URL if present
     if params[:rd].present?
@@ -280,12 +292,13 @@ class SessionsController < ApplicationController
 
       # Clean up session
       session.delete(:pending_webauthn_user_id)
+      remember_me = session.delete(:pending_remember_me) || false
       if session[:webauthn_redirect_url].present?
         session[:return_to_after_authenticating] = session.delete(:webauthn_redirect_url)
       end
 
       # Create session (WebAuthn/passkey = phishing-resistant, ACR = "2")
-      start_new_session_for user, acr: "2"
+      start_new_session_for user, acr: "2", remember_me: remember_me
 
       render json: {
         success: true,
@@ -306,6 +319,10 @@ class SessionsController < ApplicationController
 
   private
 
+  def remember_me?
+    ActiveModel::Type::Boolean.new.cast(params[:remember_me]) || false
+  end
+
   def validate_redirect_url(url)
     return nil unless url.present?
 

app/controllers/totp_controller.rb

@@ -12,6 +12,10 @@ class TotpController < ApplicationController
     @totp_secret = ROTP::Base32.random
     @provisioning_uri = ROTP::TOTP.new(@totp_secret, issuer: "Clinch").provisioning_uri(@user.email_address)
 
+    # Hold the secret server-side until the user confirms it with a valid code,
+    # so an attacker with session access cannot substitute one they control.
+    session[:pending_totp_secret] = @totp_secret
+
     # Generate QR code
     require "rqrcode"
     @qr_code = RQRCode::QRCode.new(@provisioning_uri)
@@ -19,9 +23,14 @@ class TotpController < ApplicationController
 
   # POST /totp - Verify TOTP code and enable 2FA
   def create
-    totp_secret = params[:totp_secret]
+    totp_secret = session[:pending_totp_secret]
     code = params[:code]
 
+    unless totp_secret
+      redirect_to new_totp_path, alert: "Your TOTP setup session expired. Please start again."
+      return
+    end
+
     # Verify the code works
     totp = ROTP::TOTP.new(totp_secret)
     if totp.verify(code, drift_behind: 30, drift_ahead: 30)
@@ -30,6 +39,9 @@ class TotpController < ApplicationController
       plain_codes = @user.send(:generate_backup_codes) # Use private method from User model
       @user.save!
 
+      session.delete(:pending_totp_secret)
+      TotpMailer.enabled(@user).deliver_later
+
       # Store plain codes temporarily in session for display after redirect
       session[:temp_backup_codes] = plain_codes
 
@@ -91,6 +103,7 @@ class TotpController < ApplicationController
     # Generate new backup codes and store BCrypt hashes
     plain_codes = @user.send(:generate_backup_codes)
     @user.save!
+    SecurityMailer.backup_codes_regenerated(@user, **security_event_context).deliver_later
 
     # Store plain codes temporarily in session for display
     session[:temp_backup_codes] = plain_codes
@@ -124,6 +137,7 @@ class TotpController < ApplicationController
     end
 
     @user.disable_totp!
+    SecurityMailer.totp_disabled(@user, **security_event_context).deliver_later
     redirect_to profile_path, notice: "Two-factor authentication has been disabled."
   end
 

app/controllers/users_controller.rb

@@ -8,12 +8,16 @@ class UsersController < ApplicationController
 
   def create
     @user = User.new(user_params)
-
-    # First user becomes admin automatically
-    @user.admin = true if User.count.zero?
     @user.status = "active"
+    first_user = User.count.zero?
 
     if @user.save
+      # First user automatically becomes a member of every admin group, so they
+      # can reach the admin panel without an existing admin to grant access.
+      if first_user
+        Group.where(admin: true).each { |g| @user.groups << g }
+      end
+
       start_new_session_for @user
       redirect_to root_path, notice: "Welcome to Clinch! Your account has been created."
     else

app/controllers/webauthn_controller.rb

@@ -91,6 +91,8 @@ class WebauthnController < ApplicationController
         backup_state: backup_state
       )
 
+      SecurityMailer.passkey_added(user, nickname: @webauthn_credential.nickname, **security_event_context).deliver_later
+
       render json: {
         success: true,
         message: "Passkey '#{nickname}' registered successfully",
@@ -109,8 +111,11 @@ class WebauthnController < ApplicationController
   # Remove a passkey
   def destroy
     nickname = @webauthn_credential.nickname
+    user = @webauthn_credential.user
     @webauthn_credential.destroy
 
+    SecurityMailer.passkey_removed(user, nickname: nickname, **security_event_context).deliver_later
+
     respond_to do |format|
       format.html {
         redirect_to profile_path,
@@ -148,7 +153,8 @@ class WebauthnController < ApplicationController
     # Only return minimal necessary info - no user_id or preferred_method
     render json: {
       has_webauthn: user.can_authenticate_with_webauthn?,
-      requires_webauthn: user.require_webauthn?
+      requires_webauthn: user.require_webauthn?,
+      has_totp: user.totp_enabled?
     }
   end
 

app/helpers/application_helper.rb

@@ -20,13 +20,73 @@ module ApplicationHelper
     end
   end
 
+  def oidc_env_lines(application, client_secret: nil)
+    lines = ["OIDC_CLIENT_ID=#{application.client_id}"]
+    lines << if client_secret
+      "OIDC_CLIENT_SECRET=#{client_secret}"
+    elsif application.public_client?
+      "OIDC_CLIENT_SECRET="
+    else
+      "OIDC_CLIENT_SECRET=<your-client-secret>"
+    end
+    lines << "OIDC_DISCOVERY_URL=#{OidcJwtService.issuer_url}"
+    lines << "OIDC_PROVIDER_NAME='Clinch'"
+    lines << "OIDC_REQUIRE_PKCE=#{application.requires_pkce? ? 'true' : 'false'}"
+    lines
+  end
+
   def border_class_for(type)
     case type.to_s
-    when "notice" then "border-green-200"
+    when "notice" then "border-green-200 dark:border-green-700"
-    when "alert", "error" then "border-red-200"
+    when "alert", "error" then "border-red-200 dark:border-red-700"
-    when "warning" then "border-yellow-200"
+    when "warning" then "border-yellow-200 dark:border-yellow-700"
-    when "info" then "border-blue-200"
+    when "info" then "border-blue-200 dark:border-blue-700"
-    else "border-gray-200"
+    else "border-gray-200 dark:border-gray-700"
+    end
+  end
+
+  # Picks 1-2 character initials for a monogram fallback when an Application
+  # has no icon. Prefers capital letters (ShelfLife -> SL); falls back to the
+  # first two letters of the name (Audiobookshelf -> AU).
+  MONOGRAM_PALETTE = %w[
+    #4f46e5 #0891b2 #16a34a #ca8a04
+    #db2777 #9333ea #ea580c #475569
+  ].freeze
+
+  def monogram_initials(name)
+    return "?" if name.blank?
+    caps = name.scan(/[A-Z]/)
+    initials = if caps.size >= 2
+      caps.first(2).join
+    else
+      name.upcase.gsub(/[^A-Z0-9]/, "").first(2)
+    end
+    initials.presence || "?"
+  end
+
+  def monogram_color(name)
+    return MONOGRAM_PALETTE.first if name.blank?
+    index = Digest::MD5.hexdigest(name).to_i(16) % MONOGRAM_PALETTE.size
+    MONOGRAM_PALETTE[index]
+  end
+
+  # Renders an application icon with optional dark-mode variant. If
+  # `icon_dark` is attached, we render both <img> tags and Tailwind's class-
+  # based `dark:` modifier hides the inactive one — so it follows the in-app
+  # theme toggle (.dark on <html>), not the OS preference. If only `icon` is
+  # attached, the same image is used in both modes. Caller must ensure at
+  # least app.icon is attached; the monogram fallback handles no-icon.
+  def app_icon_picture(app, class:, alt: nil)
+    img_class = binding.local_variable_get(:class)
+    alt ||= "#{app.name} icon"
+
+    if app.icon_dark.attached?
+      safe_join([
+        image_tag(app.icon, class: "#{img_class} dark:hidden", alt: alt),
+        image_tag(app.icon_dark, class: "#{img_class} hidden dark:block", alt: alt)
+      ])
+    else
+      image_tag(app.icon, class: img_class, alt: alt)
     end
   end
 end

app/javascript/controllers/dark_mode_controller.js

@@ -0,0 +1,27 @@
+import { Controller } from "@hotwired/stimulus"
+
+export default class extends Controller {
+  static targets = ["icon"]
+
+  connect() {
+    this.updateIcon()
+  }
+
+  toggle() {
+    document.documentElement.classList.toggle("dark")
+    const isDark = document.documentElement.classList.contains("dark")
+    localStorage.setItem("theme", isDark ? "dark" : "light")
+    this.updateIcon()
+  }
+
+  updateIcon() {
+    const isDark = document.documentElement.classList.contains("dark")
+    this.iconTargets.forEach(icon => {
+      if (icon.dataset.mode === "dark") {
+        icon.classList.toggle("hidden", !isDark)
+      } else {
+        icon.classList.toggle("hidden", isDark)
+      }
+    })
+  }
+}

app/javascript/controllers/webauthn_controller.js

@@ -49,10 +49,9 @@ export default class extends Controller {
           }
         });
 
-        // Auto-trigger passkey authentication if required
+        // Don't auto-trigger navigator.credentials.get() — Safari's WebAuthn
-        if (data.requires_webauthn) {
+        // dialog can become undismissable when invoked without a user gesture.
-          setTimeout(() => this.authenticate(), 100);
+        // Always let the user click "Continue with Passkey" instead.
-        }
       } else {
         console.debug("No WebAuthn credentials found for this email");
       }
@@ -181,7 +180,8 @@ export default class extends Controller {
           "X-CSRF-Token": this.getCSRFToken()
         },
         body: JSON.stringify({
-          email: this.getUserEmail()
+          email: this.getUserEmail(),
+          remember_me: this.getRememberMe()
         })
       });
 
@@ -289,9 +289,18 @@ export default class extends Controller {
     if (!emailInput) {
       emailInput = document.querySelector('input[name="user[email_address]"]');
     }
+    // Fallback to hidden webauthn_email field (e.g., on TOTP verification page)
+    if (!emailInput) {
+      emailInput = document.querySelector('input[name="webauthn_email"]');
+    }
     return emailInput ? emailInput.value.trim() : "";
   }
 
+  getRememberMe() {
+    const checkbox = document.querySelector('input[name="remember_me"][type="checkbox"]');
+    return checkbox ? checkbox.checked : false;
+  }
+
   isValidEmail(email) {
     return /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email);
   }
@@ -311,7 +320,7 @@ export default class extends Controller {
       return "This authenticator has already been registered.";
     }
 
-    // Fallback to error message
+    // Fallback to a user-friendly message
-    return error.message || "An unexpected error occurred";
+    return "Passkey authentication failed. A browser extension may be interfering — try using your password instead.";
   }
 }

app/mailers/security_mailer.rb

@@ -0,0 +1,59 @@
+class SecurityMailer < ApplicationMailer
+  SUBJECT_PREFIX = "[Clinch security alert] ".freeze
+
+  def password_changed(user, ip:, user_agent:, occurred_at:)
+    assign_context(user, ip, user_agent, occurred_at)
+    mail subject: "#{SUBJECT_PREFIX}Your password was changed", to: user.email_address
+  end
+
+  def totp_disabled(user, ip:, user_agent:, occurred_at:)
+    assign_context(user, ip, user_agent, occurred_at)
+    mail subject: "#{SUBJECT_PREFIX}Two-factor authentication was disabled", to: user.email_address
+  end
+
+  def backup_codes_regenerated(user, ip:, user_agent:, occurred_at:)
+    assign_context(user, ip, user_agent, occurred_at)
+    mail subject: "#{SUBJECT_PREFIX}Two-factor backup codes were regenerated", to: user.email_address
+  end
+
+  def passkey_added(user, nickname:, ip:, user_agent:, occurred_at:)
+    assign_context(user, ip, user_agent, occurred_at)
+    @nickname = nickname
+    mail subject: "#{SUBJECT_PREFIX}A passkey was added to your account", to: user.email_address
+  end
+
+  def passkey_removed(user, nickname:, ip:, user_agent:, occurred_at:)
+    assign_context(user, ip, user_agent, occurred_at)
+    @nickname = nickname
+    mail subject: "#{SUBJECT_PREFIX}A passkey was removed from your account", to: user.email_address
+  end
+
+  def api_key_created(user, name:, ip:, user_agent:, occurred_at:)
+    assign_context(user, ip, user_agent, occurred_at)
+    @api_key_name = name
+    mail subject: "#{SUBJECT_PREFIX}An API key was created on your account", to: user.email_address
+  end
+
+  def api_key_revoked(user, name:, ip:, user_agent:, occurred_at:)
+    assign_context(user, ip, user_agent, occurred_at)
+    @api_key_name = name
+    mail subject: "#{SUBJECT_PREFIX}An API key was revoked on your account", to: user.email_address
+  end
+
+  def email_address_changed(user, recipient:, old_email:, new_email:, ip:, user_agent:, occurred_at:)
+    assign_context(user, ip, user_agent, occurred_at)
+    @recipient = recipient
+    @old_email = old_email
+    @new_email = new_email
+    mail subject: "#{SUBJECT_PREFIX}Your account email address was changed", to: recipient
+  end
+
+  private
+
+  def assign_context(user, ip, user_agent, occurred_at)
+    @user = user
+    @ip = ip
+    @user_agent = user_agent
+    @occurred_at = occurred_at
+  end
+end

app/mailers/totp_mailer.rb

@@ -0,0 +1,7 @@
+class TotpMailer < ApplicationMailer
+  def enabled(user)
+    @user = user
+    mail subject: "Two-factor authentication enabled on your account",
+         to: user.email_address
+  end
+end

app/models/application.rb

@@ -22,10 +22,15 @@ class Application < ApplicationRecord
     super(parsed)
   end
 
-  has_one_attached :icon
+  after_commit :bust_forward_auth_cache, if: :forward_auth?
 
-  # Fix SVG content type after attachment
+  has_one_attached :icon
-  after_save :fix_icon_content_type, if: -> { icon.attached? && saved_change_to_attribute?(:id) == false }
+  has_one_attached :icon_dark
+
+  ICON_ATTACHMENTS = %i[icon icon_dark].freeze
+
+  before_validation :sanitize_svg_icons
+  after_save :fix_icon_content_types
 
   has_many :application_groups, dependent: :destroy
   has_many :allowed_groups, through: :application_groups, source: :group
@@ -53,7 +58,7 @@ class Application < ApplicationRecord
   validate :backchannel_logout_uri_must_be_https_in_production, if: -> { backchannel_logout_uri.present? }
 
   # Icon validation using ActiveStorage validators
-  validate :icon_validation, if: -> { icon.attached? }
+  validate :icon_validation
 
   # Token TTL validations (for OIDC apps)
   validates :access_token_ttl, numericality: {greater_than_or_equal_to: 300, less_than_or_equal_to: 86400}, if: :oidc?  # 5 min - 24 hours
@@ -116,14 +121,12 @@ class Application < ApplicationRecord
   end
 
   # Access control
+  # Default-deny: an empty allowed_groups list means no one gets in.
+  # To make an app accessible to "everyone", attach the seeded auto-assign
+  # group (or any group every user is in).
   def user_allowed?(user)
     return false unless active?
     return false unless user.active?
-
-    # If no groups are specified, allow all active users
-    return true if allowed_groups.empty?
-
-    # Otherwise, user must be in at least one of the allowed groups
     (user.groups & allowed_groups).any?
   end
 
@@ -166,10 +169,6 @@ class Application < ApplicationRecord
     return "deny" unless active?
     return "deny" unless user.active?
 
-    # If no groups specified, bypass authentication
-    return "bypass" if allowed_groups.empty?
-
-    # If user is in allowed groups, determine auth level
     if user_allowed?(user)
       # Require 2FA if user has TOTP configured, otherwise one factor
       user.totp_enabled? ? "two_factor" : "one_factor"
@@ -200,7 +199,7 @@ class Application < ApplicationRecord
       when :username
         headers[header_name] = user.username if user.username.present?
       when :groups
-        headers[header_name] = user.groups.pluck(:name).join(",") if user.groups.any?
+        headers[header_name] = user.groups.map(&:name).join(",") if user.groups.any?
       when :admin
         headers[header_name] = user.admin? ? "true" : "false"
       end
@@ -268,27 +267,88 @@ class Application < ApplicationRecord
 
   private
 
-  def fix_icon_content_type
+  def bust_forward_auth_cache
-    return unless icon.attached?
+    Rails.application.config.forward_auth_cache&.delete("fa_apps")
+  end
 
+  def fix_icon_content_types
+    ICON_ATTACHMENTS.each do |attr|
+      attachment = public_send(attr)
+      next unless attachment.attached?
       # Fix SVG content type if it was detected incorrectly
-    if icon.filename.extension == "svg" && icon.content_type == "application/octet-stream"
+      if attachment.filename.extension == "svg" && attachment.content_type == "application/octet-stream"
-      icon.blob.update(content_type: "image/svg+xml")
+        attachment.blob.update(content_type: "image/svg+xml")
+      end
+    end
+  end
+
+  def sanitize_svg_icons
+    # Runs in before_validation. The blob has NOT yet been uploaded to disk at
+    # this point (Active Storage uploads in before_save), so we cannot call
+    # download — we must read from the pending attachable.
+    #
+    # attach below re-sets attachment_changes and would re-fire this callback;
+    # we skip if the pending attachable is the cleaned hash we just installed
+    # (tracked by object identity, per-attribute).
+    @svg_sanitized_attachables ||= {}
+
+    ICON_ATTACHMENTS.each do |attr|
+      change = attachment_changes[attr.to_s]
+      next unless change
+      attachable = change.attachable
+      next if attachable.equal?(@svg_sanitized_attachables[attr])
+
+      raw_svg, filename, content_type = read_pending_icon(attachable)
+      next unless raw_svg
+      next unless content_type == "image/svg+xml" || filename.to_s.downcase.end_with?(".svg")
+
+      doc = Loofah.xml_document(raw_svg)
+      doc.scrub!(SvgScrubber.new)
+      clean_svg = doc.to_xml
+
+      sanitized = {
+        io: StringIO.new(clean_svg),
+        filename: filename,
+        content_type: "image/svg+xml"
+      }
+      @svg_sanitized_attachables[attr] = sanitized
+      public_send(attr).attach(sanitized)
+    end
+  end
+
+  def read_pending_icon(attachable)
+    case attachable
+    when ActionDispatch::Http::UploadedFile, Rack::Test::UploadedFile
+      content = attachable.read
+      attachable.rewind
+      [content, attachable.original_filename, attachable.content_type]
+    when Hash
+      io = attachable[:io] || attachable["io"]
+      return [nil, nil, nil] unless io
+      content = io.read
+      io.rewind if io.respond_to?(:rewind)
+      [content,
+        attachable[:filename] || attachable["filename"],
+        attachable[:content_type] || attachable["content_type"]]
+    else
+      [nil, nil, nil]
     end
   end
 
   def icon_validation
-    return unless icon.attached?
-
-    # Check content type
     allowed_types = ["image/png", "image/jpg", "image/jpeg", "image/gif", "image/svg+xml"]
-    unless allowed_types.include?(icon.content_type)
+
-      errors.add(:icon, "must be a PNG, JPG, GIF, or SVG image")
+    ICON_ATTACHMENTS.each do |attr|
+      attachment = public_send(attr)
+      next unless attachment.attached?
+
+      unless allowed_types.include?(attachment.content_type)
+        errors.add(attr, "must be a PNG, JPG, GIF, or SVG image")
       end
 
-    # Check file size (2MB limit)
+      if attachment.blob.byte_size > 2.megabytes
-    if icon.blob.byte_size > 2.megabytes
+        errors.add(attr, "must be less than 2MB")
-      errors.add(:icon, "must be less than 2MB")
+      end
     end
   end
 

app/models/application_group.rb

@@ -3,4 +3,12 @@ class ApplicationGroup < ApplicationRecord
   belongs_to :group
 
   validates :application_id, uniqueness: {scope: :group_id}
+
+  after_commit :bust_forward_auth_cache
+
+  private
+
+  def bust_forward_auth_cache
+    Rails.application.config.forward_auth_cache&.delete("fa_apps")
+  end
 end

app/models/group.rb

@@ -15,6 +15,11 @@ class Group < ApplicationRecord
   normalizes :name, with: ->(name) { name.strip.downcase }
   validate :no_reserved_claim_names
 
+  scope :auto_assign, -> { where(auto_assign: true) }
+  scope :admin, -> { where(admin: true) }
+
+  before_destroy :ensure_other_admin_group_exists
+
   # Parse custom_claims JSON field
   def parsed_custom_claims
     return {} if custom_claims.blank?
@@ -23,6 +28,13 @@ class Group < ApplicationRecord
 
   private
 
+  def ensure_other_admin_group_exists
+    return unless admin?
+    return if Group.where(admin: true).where.not(id: id).exists?
+    errors.add(:base, "cannot delete the last administrators group")
+    throw :abort
+  end
+
   def no_reserved_claim_names
     return if custom_claims.blank?
 

app/models/oidc_access_token.rb

@@ -1,6 +1,7 @@
 class OidcAccessToken < ApplicationRecord
   belongs_to :application
   belongs_to :user
+  belongs_to :oidc_authorization_code, optional: true
   has_many :oidc_refresh_tokens, dependent: :destroy
 
   before_validation :generate_token, on: :create

app/models/oidc_authorization_code.rb

@@ -1,6 +1,8 @@
 class OidcAuthorizationCode < ApplicationRecord
   belongs_to :application
   belongs_to :user
+  has_many :oidc_access_tokens
+  has_many :oidc_refresh_tokens
 
   attr_accessor :plaintext_code
 
@@ -9,7 +11,7 @@ class OidcAuthorizationCode < ApplicationRecord
 
   validates :code_hmac, presence: true, uniqueness: true
   validates :redirect_uri, presence: true
-  validates :code_challenge_method, inclusion: {in: %w[plain S256], allow_nil: true}
+  validates :code_challenge_method, inclusion: {in: %w[S256], allow_nil: true}
   validate :validate_code_challenge_format, if: -> { code_challenge.present? }
 
   scope :valid, -> { where(used: false).where("expires_at > ?", Time.current) }

app/models/oidc_refresh_token.rb

@@ -2,6 +2,7 @@ class OidcRefreshToken < ApplicationRecord
   belongs_to :application
   belongs_to :user
   belongs_to :oidc_access_token
+  belongs_to :oidc_authorization_code, optional: true
 
   before_validation :generate_token, on: :create
   before_validation :set_expiry, on: :create

app/models/svg_scrubber.rb

@@ -0,0 +1,73 @@
+# Loofah scrubber that strips dangerous content from SVG files
+# while preserving safe SVG elements and attributes for icon display.
+class SvgScrubber < Loofah::Scrubber
+  ALLOWED_ELEMENTS = %w[
+    svg g defs use symbol
+    circle ellipse line path polygon polyline rect
+    text tspan textPath
+    clipPath mask pattern
+    linearGradient radialGradient stop
+    filter feBlend feColorMatrix feComponentTransfer feComposite
+    feConvolveMatrix feDiffuseLighting feDisplacementMap feFlood
+    feGaussianBlur feImage feMerge feMergeNode feMorphology
+    feOffset feSpecularLighting feTile feTurbulence
+    title desc metadata
+  ].freeze
+
+  ALLOWED_ATTRIBUTES = %w[
+    id class style
+    x y x1 y1 x2 y2 cx cy r rx ry
+    width height viewBox preserveAspectRatio
+    d points
+    fill stroke stroke-width stroke-linecap stroke-linejoin stroke-dasharray
+    opacity fill-opacity stroke-opacity
+    transform translate rotate scale
+    font-family font-size font-weight text-anchor
+    clip-path mask filter
+    gradientUnits gradientTransform spreadMethod
+    offset stop-color stop-opacity
+    dx dy textLength lengthAdjust
+    xmlns xmlns:xlink
+    color display visibility overflow
+    fill-rule clip-rule
+    marker-start marker-mid marker-end
+  ].freeze
+
+  # Loofah hands attribute names back in their source case (e.g. "viewBox").
+  # Compare against a downcased copy so SVG-spec camelCase attributes aren't
+  # stripped from legitimate icons.
+  ALLOWED_ATTRIBUTES_LOOKUP = ALLOWED_ATTRIBUTES.map(&:downcase).to_set.freeze
+
+  # Event handler attributes that must always be removed
+  EVENT_HANDLER_PATTERN = /\Aon/i
+
+  def initialize
+    @direction = :top_down
+  end
+
+  def scrub(node)
+    return CONTINUE if node.text? || node.cdata?
+
+    if node.element?
+      if ALLOWED_ELEMENTS.include?(node.name)
+        # Remove disallowed and event handler attributes
+        node.attribute_nodes.each do |attr|
+          attr.remove unless safe_attribute?(attr)
+        end
+        return CONTINUE
+      end
+    end
+
+    node.remove
+    STOP
+  end
+
+  private
+
+  def safe_attribute?(attr)
+    name = attr.name.downcase
+    return false if name.match?(EVENT_HANDLER_PATTERN)
+    return false if attr.value&.match?(/javascript:|data:/i)
+    ALLOWED_ATTRIBUTES_LOOKUP.include?(name)
+  end
+end

app/models/user.rb

@@ -42,7 +42,18 @@ class User < ApplicationRecord
   enum :status, {active: 0, disabled: 1, pending_invitation: 2}
 
   # Scopes
-  scope :admins, -> { where(admin: true) }
+  scope :admins, -> { joins(:groups).where(groups: {admin: true}).distinct }
+
+  # Set true on a user (or on the user_params) to skip the auto-assign callback
+  # for that record. Used by the admin invite form (opt-out checkbox) and by
+  # tests that want a clean slate.
+  attr_accessor :skip_auto_assign
+
+  after_create :add_to_auto_assign_groups, unless: :skip_auto_assign
+
+  def admin?
+    groups.any?(&:admin?)
+  end
 
   # TOTP methods
   def totp_enabled?
@@ -107,12 +118,12 @@ class User < ApplicationRecord
       save! # Save the updated array
 
       # Log successful backup code usage for security monitoring
-      Rails.logger.info "Backup code used successfully - User ID: #{id}, IP: #{Current.session&.client_ip}"
+      Rails.logger.info "Backup code used successfully - User ID: #{id}, IP: #{Current.session&.ip_address}"
       true
     else
       # Increment failed attempt counter and log for security monitoring
       increment_backup_code_failed_attempts
-      Rails.logger.warn "Failed backup code attempt - User ID: #{id}, IP: #{Current.session&.client_ip}"
+      Rails.logger.warn "Failed backup code attempt - User ID: #{id}, IP: #{Current.session&.ip_address}"
       false
     end
   end
@@ -222,6 +233,10 @@ class User < ApplicationRecord
 
   private
 
+  def add_to_auto_assign_groups
+    Group.auto_assign.each { |g| groups << g }
+  end
+
   def no_reserved_claim_names
     return if custom_claims.blank?
 

app/services/oidc_jwt_service.rb

@@ -1,6 +1,8 @@
 class OidcJwtService
   extend ClaimsMerger
 
+  RESERVED_CLAIMS = %i[iss sub aud exp iat nbf jti nonce azp].freeze
+
   class << self
     # Generate an ID token (JWT) for the user
     def generate_id_token(user, application, consent: nil, nonce: nil, access_token: nil, auth_time: nil, acr: nil, scopes: "openid", claims_requests: {})
@@ -79,15 +81,16 @@ class OidcJwtService
 
       # Merge custom claims from groups (arrays are combined, not overwritten)
       # Note: Custom claims from groups are always merged (not scope-dependent)
+      # Reserved claims are stripped as defense-in-depth (also validated at model layer)
       user.groups.each do |group|
-        payload = deep_merge_claims(payload, group.parsed_custom_claims)
+        payload = deep_merge_claims(payload, group.parsed_custom_claims.except(*RESERVED_CLAIMS))
       end
 
       # Merge custom claims from user (arrays are combined, other values override)
-      payload = deep_merge_claims(payload, user.parsed_custom_claims)
+      payload = deep_merge_claims(payload, user.parsed_custom_claims.except(*RESERVED_CLAIMS))
 
       # Merge app-specific custom claims (highest priority, arrays are combined)
-      payload = deep_merge_claims(payload, application.custom_claims_for_user(user))
+      payload = deep_merge_claims(payload, application.custom_claims_for_user(user).except(*RESERVED_CLAIMS))
 
       # Filter custom claims based on claims parameter
       # If claims parameter is present, only include requested custom claims

app/views/active_sessions/show.html.erb

@@ -1,50 +1,50 @@
 <div class="space-y-8">
   <div>
-    <h1 class="text-3xl font-bold text-gray-900">Sessions</h1>
+    <h1 class="text-3xl font-bold text-gray-900 dark:text-gray-100">Sessions</h1>
-    <p class="mt-2 text-sm text-gray-600">Manage your active sessions and connected applications.</p>
+    <p class="mt-2 text-sm text-gray-600 dark:text-gray-400">Manage your active sessions and connected applications.</p>
   </div>
 
   <!-- Connected Applications -->
-  <div class="bg-white shadow sm:rounded-lg">
+  <div class="bg-white dark:bg-gray-800 shadow sm:rounded-lg">
     <div class="px-4 py-5 sm:p-6">
-      <h3 class="text-lg font-medium leading-6 text-gray-900">Connected Applications</h3>
+      <h3 class="text-lg font-medium leading-6 text-gray-900 dark:text-gray-100">Connected Applications</h3>
-      <div class="mt-2 max-w-xl text-sm text-gray-500">
+      <div class="mt-2 max-w-xl text-sm text-gray-500 dark:text-gray-400">
         <p>These applications have access to your account. You can revoke access at any time.</p>
       </div>
       <div class="mt-5">
         <% if @connected_applications.any? %>
-          <ul role="list" class="divide-y divide-gray-200">
+          <ul role="list" class="divide-y divide-gray-200 dark:divide-gray-700">
             <% @connected_applications.each do |consent| %>
               <li class="py-4">
                 <div class="flex items-center justify-between">
                   <div class="flex flex-col">
-                    <p class="text-sm font-medium text-gray-900">
+                    <p class="text-sm font-medium text-gray-900 dark:text-gray-100">
                       <%= consent.application.name %>
                     </p>
-                    <p class="mt-1 text-sm text-gray-500">
+                    <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">
                       Access to: <%= consent.formatted_scopes %>
                     </p>
-                    <p class="mt-1 text-xs text-gray-400">
+                    <p class="mt-1 text-xs text-gray-400 dark:text-gray-500">
                       Authorized <%= time_ago_in_words(consent.granted_at) %> ago
                     </p>
                   </div>
                   <%= button_to "Revoke Access", revoke_consent_active_sessions_path(application_id: consent.application.id), method: :delete,
-                      class: "inline-flex items-center rounded-md border border-red-300 bg-white px-3 py-2 text-sm font-medium text-red-700 shadow-sm hover:bg-red-50 focus:outline-none focus:ring-2 focus:ring-red-500 focus:ring-offset-2",
+                      class: "inline-flex items-center rounded-md border border-red-300 bg-white dark:bg-gray-700 dark:ring-gray-600 dark:text-gray-200 px-3 py-2 text-sm font-medium text-red-700 shadow-sm hover:bg-red-50 focus:outline-none focus:ring-2 focus:ring-red-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900",
                       form: { data: { turbo_confirm: "Are you sure you want to revoke access to #{consent.application.name}? You'll need to re-authorize this application to use it again." } } %>
                 </div>
               </li>
             <% end %>
           </ul>
         <% else %>
-          <p class="text-sm text-gray-500">No connected applications.</p>
+          <p class="text-sm text-gray-500 dark:text-gray-400">No connected applications.</p>
         <% end %>
 
         <% if @connected_applications.any? %>
-          <div class="mt-6 pt-6 border-t border-gray-200">
+          <div class="mt-6 pt-6 border-t border-gray-200 dark:border-gray-700">
             <div class="flex justify-end">
               <div class="inline-block">
                 <%= button_to "Revoke All App Access", revoke_all_consents_active_sessions_path, method: :delete,
-                    class: "inline-flex items-center rounded-md border border-red-300 bg-white px-3 py-2 text-sm font-medium text-red-700 shadow-sm hover:bg-red-50 focus:outline-none focus:ring-2 focus:ring-red-500 focus:ring-offset-2 whitespace-nowrap",
+                    class: "inline-flex items-center rounded-md border border-red-300 bg-white dark:bg-gray-700 dark:ring-gray-600 dark:text-gray-200 px-3 py-2 text-sm font-medium text-red-700 shadow-sm hover:bg-red-50 focus:outline-none focus:ring-2 focus:ring-red-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900 whitespace-nowrap",
                     form: { data: { turbo_confirm: "This will revoke access from all connected applications. You'll need to re-authorize each application to use them again. Are you sure?" } } %>
               </div>
             </div>
@@ -55,37 +55,37 @@
   </div>
 
   <!-- Active Sessions -->
-  <div class="bg-white shadow sm:rounded-lg">
+  <div class="bg-white dark:bg-gray-800 shadow sm:rounded-lg">
     <div class="px-4 py-5 sm:p-6">
-      <h3 class="text-lg font-medium leading-6 text-gray-900">Active Sessions</h3>
+      <h3 class="text-lg font-medium leading-6 text-gray-900 dark:text-gray-100">Active Sessions</h3>
-      <div class="mt-2 max-w-xl text-sm text-gray-500">
+      <div class="mt-2 max-w-xl text-sm text-gray-500 dark:text-gray-400">
         <p>These devices are currently signed in to your account. Revoke any sessions that you don't recognize.</p>
       </div>
       <div class="mt-5">
         <% if @active_sessions.any? %>
-          <ul role="list" class="divide-y divide-gray-200">
+          <ul role="list" class="divide-y divide-gray-200 dark:divide-gray-700">
             <% @active_sessions.each do |session| %>
               <li class="py-4">
                 <div class="flex items-center justify-between">
                   <div class="flex flex-col">
-                    <p class="text-sm font-medium text-gray-900">
+                    <p class="text-sm font-medium text-gray-900 dark:text-gray-100">
                       <%= session.device_name || "Unknown Device" %>
                       <% if session.id == Current.session.id %>
-                        <span class="ml-2 inline-flex items-center rounded-full bg-green-100 px-2.5 py-0.5 text-xs font-medium text-green-800">
+                        <span class="ml-2 inline-flex items-center rounded-full bg-green-100 dark:bg-green-900/50 px-2.5 py-0.5 text-xs font-medium text-green-800 dark:text-green-200">
                           This device
                         </span>
                       <% end %>
                     </p>
-                    <p class="mt-1 text-sm text-gray-500">
+                    <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">
                       <%= session.ip_address %>
                     </p>
-                    <p class="mt-1 text-xs text-gray-400">
+                    <p class="mt-1 text-xs text-gray-400 dark:text-gray-500">
                       Last active <%= time_ago_in_words(session.last_activity_at || session.updated_at) %> ago
                     </p>
                   </div>
                   <% if session.id != Current.session.id %>
                     <%= button_to "Revoke", session_path(session), method: :delete,
-                        class: "inline-flex items-center rounded-md border border-gray-300 bg-white px-3 py-2 text-sm font-medium text-gray-700 shadow-sm hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2",
+                        class: "inline-flex items-center rounded-md border border-gray-300 dark:border-gray-600 bg-white dark:bg-gray-700 dark:text-gray-200 px-3 py-2 text-sm font-medium text-gray-700 shadow-sm hover:bg-gray-50 dark:hover:bg-gray-800 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900",
                         form: { data: { turbo_confirm: "Are you sure you want to revoke this session?" } } %>
                   <% end %>
                 </div>
@@ -93,15 +93,15 @@
             <% end %>
           </ul>
         <% else %>
-          <p class="text-sm text-gray-500">No other active sessions.</p>
+          <p class="text-sm text-gray-500 dark:text-gray-400">No other active sessions.</p>
         <% end %>
 
         <% if @active_sessions.count > 1 %>
-          <div class="mt-6 pt-6 border-t border-gray-200">
+          <div class="mt-6 pt-6 border-t border-gray-200 dark:border-gray-700">
             <div class="flex justify-end">
               <div class="inline-block">
                 <%= button_to "Sign Out Everywhere Else", session_path(Current.session), method: :delete,
-                    class: "inline-flex items-center rounded-md border border-orange-300 bg-white px-3 py-2 text-sm font-medium text-orange-700 shadow-sm hover:bg-orange-50 focus:outline-none focus:ring-2 focus:ring-orange-500 focus:ring-offset-2 whitespace-nowrap",
+                    class: "inline-flex items-center rounded-md border border-orange-300 bg-white dark:bg-gray-700 dark:ring-gray-600 dark:text-gray-200 px-3 py-2 text-sm font-medium text-orange-700 shadow-sm hover:bg-orange-50 focus:outline-none focus:ring-2 focus:ring-orange-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900 whitespace-nowrap",
                     form: { data: { turbo_confirm: "This will sign you out from all other devices except this one. Are you sure?" } } %>
               </div>
             </div>

app/views/admin/access_checks/new.html.erb

@@ -0,0 +1,77 @@
+<div class="mb-6">
+  <h1 class="text-2xl font-semibold text-gray-900 dark:text-gray-100">Access check</h1>
+  <p class="mt-2 text-sm text-gray-700 dark:text-gray-300">Pick a user and an application to see whether the user can access it and, if so, which group(s) grant that access.</p>
+</div>
+
+<div class="bg-white dark:bg-gray-800 shadow sm:rounded-lg">
+  <div class="px-4 py-5 sm:p-6">
+    <%= form_with url: admin_access_path, method: :post, class: "space-y-4" do |form| %>
+      <div class="grid grid-cols-1 gap-4 sm:grid-cols-2">
+        <div>
+          <%= form.label :user_id, "User", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
+          <%= form.select :user_id,
+                @users.map { |u| [u.email_address, u.id] },
+                { include_blank: "Select a user…", selected: @user&.id },
+                class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm" %>
+        </div>
+        <div>
+          <%= form.label :application_id, "Application", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
+          <%= form.select :application_id,
+                @applications.map { |a| [a.name, a.id] },
+                { include_blank: "Select an application…", selected: @application&.id },
+                class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm" %>
+        </div>
+      </div>
+      <div>
+        <%= form.submit "Check access", class: "rounded-md bg-blue-600 px-3 py-2 text-sm font-semibold text-white shadow-sm hover:bg-blue-500 focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-blue-600" %>
+      </div>
+    <% end %>
+
+    <% if @user && @application %>
+      <div class="mt-6 rounded-md border <%= @allowed ? "border-green-200 dark:border-green-700 bg-green-50 dark:bg-green-900/30" : "border-red-200 dark:border-red-700 bg-red-50 dark:bg-red-900/30" %> p-4">
+        <div class="flex items-start gap-3">
+          <% if @allowed %>
+            <svg class="h-6 w-6 text-green-600 dark:text-green-400 shrink-0" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+              <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"/>
+            </svg>
+          <% else %>
+            <svg class="h-6 w-6 text-red-600 dark:text-red-400 shrink-0" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+              <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12"/>
+            </svg>
+          <% end %>
+          <div class="flex-1">
+            <p class="text-sm font-medium <%= @allowed ? "text-green-800 dark:text-green-200" : "text-red-800 dark:text-red-200" %>">
+              <%= @user.email_address %> <%= @allowed ? "can access" : "cannot access" %> <%= @application.name %>.
+            </p>
+            <% if @allowed %>
+              <p class="mt-1 text-xs text-green-700 dark:text-green-300">
+                Granted via:
+                <% @via.each_with_index do |g, i| %>
+                  <%= link_to g.name, admin_group_path(g), class: "underline" %><%= "," unless i == @via.size - 1 %>
+                <% end %>
+              </p>
+            <% else %>
+              <p class="mt-1 text-xs text-red-700 dark:text-red-300">
+                <% reasons = [] %>
+                <% reasons << "the application is inactive" unless @application.active? %>
+                <% reasons << "the user is #{@user.status.humanize.downcase}" unless @user.active? %>
+                <% if @application.active? && @user.active? %>
+                  <% if @application.allowed_groups.empty? %>
+                    <% reasons << "the application has no allowed groups (default deny)" %>
+                  <% else %>
+                    <% reasons << "the user shares no group with the application's allowed groups" %>
+                  <% end %>
+                <% end %>
+                Reason: <%= reasons.join("; ") %>.
+              </p>
+            <% end %>
+            <p class="mt-2 text-xs text-gray-600 dark:text-gray-400">
+              <%= link_to "View user", admin_user_path(@user), class: "underline" %> ·
+              <%= link_to "View application", admin_application_path(@application), class: "underline" %>
+            </p>
+          </div>
+        </div>
+      </div>
+    <% end %>
+  </div>
+</div>

app/views/admin/applications/_form.html.erb

@@ -2,24 +2,43 @@
   <%= render "shared/form_errors", form: form %>
 
   <div>
-    <%= form.label :name, class: "block text-sm font-medium text-gray-700" %>
+    <%= form.label :name, class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
-    <%= form.text_field :name, required: true, class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm", placeholder: "My Application" %>
+    <%= form.text_field :name, required: true, class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm", placeholder: "My Application" %>
   </div>
 
   <div>
-    <%= form.label :slug, class: "block text-sm font-medium text-gray-700" %>
+    <%= form.label :slug, class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
-    <%= form.text_field :slug, required: true, class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm font-mono", placeholder: "my-app" %>
+    <%= form.text_field :slug, required: true, class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm font-mono", placeholder: "my-app" %>
-    <p class="mt-1 text-sm text-gray-500">Lowercase letters, numbers, and hyphens only. Used in URLs and API calls.</p>
+    <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">Lowercase letters, numbers, and hyphens only. Used in URLs and API calls.</p>
   </div>
 
   <div>
-    <%= form.label :description, class: "block text-sm font-medium text-gray-700" %>
+    <% if application.persisted? %>
-    <%= form.text_area :description, rows: 3, class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm", placeholder: "Optional description of this application" %>
+      <span class="block text-sm font-medium text-gray-700 dark:text-gray-300">Application Type</span>
+      <div class="mt-1 flex items-center gap-2">
+        <span class="inline-flex items-center rounded-md bg-blue-50 dark:bg-blue-900/30 px-2 py-1 text-xs font-medium text-blue-700 dark:text-blue-300 ring-1 ring-inset ring-blue-600/20">
+          <%= application.oidc? ? "OpenID Connect (OIDC)" : "Forward Auth (Reverse Proxy)" %>
+        </span>
+      </div>
+      <%= form.hidden_field :app_type %>
+      <select class="hidden" data-application-form-target="appTypeSelect"><option value="<%= application.app_type %>" selected></option></select>
+    <% else %>
+      <%= form.label :app_type, "Application Type", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
+      <%= form.select :app_type, [["OpenID Connect (OIDC)", "oidc"], ["Forward Auth (Reverse Proxy)", "forward_auth"]], {}, {
+        class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm",
+        data: { action: "change->application-form#updateFieldVisibility", application_form_target: "appTypeSelect" }
+      } %>
+    <% end %>
   </div>
 
   <div>
-    <div class="flex items-center justify-between">
+    <%= form.label :description, class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
-      <%= form.label :icon, "Application Icon", class: "block text-sm font-medium text-gray-700" %>
+    <%= form.text_area :description, rows: 3, class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm", placeholder: "Optional description of this application" %>
+  </div>
+
+  <div class="space-y-4">
+    <div class="flex items-center justify-between -mb-2">
+      <span class="block text-sm font-medium text-gray-700 dark:text-gray-300">Application Icons</span>
       <a href="https://dashboardicons.com" target="_blank" rel="noopener noreferrer" class="text-xs text-blue-600 hover:text-blue-800 flex items-center gap-1">
         <svg class="w-3 h-3" fill="none" stroke="currentColor" viewBox="0 0 24 24">
           <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M10 6H6a2 2 0 00-2 2v10a2 2 0 002 2h10a2 2 0 002-2v-4M14 4h6m0 0v6m0-6L10 14"></path>
@@ -27,116 +46,51 @@
         Browse icons at dashboardicons.com
       </a>
     </div>
-    <% if application.icon.attached? && application.persisted? %>
-      <% begin %>
-        <%# Only show icon if we can successfully get its URL (blob is persisted) %>
-        <% if application.icon.blob&.persisted? && application.icon.blob.key.present? %>
-          <div class="mt-2 mb-3 flex items-center gap-4">
-            <%= image_tag application.icon, class: "h-16 w-16 rounded-lg object-cover border border-gray-200", alt: "Current icon" %>
-            <div class="text-sm text-gray-600">
-              <p class="font-medium">Current icon</p>
-              <p class="text-xs"><%= number_to_human_size(application.icon.blob.byte_size) %></p>
-            </div>
-          </div>
-        <% end %>
-      <% rescue ArgumentError => e %>
-        <%# Handle case where icon attachment exists but can't generate signed_id %>
-        <% if e.message.include?("Cannot get a signed_id for a new record") %>
-          <div class="mt-2 mb-3 text-sm text-gray-600">
-            <p class="font-medium">Icon uploaded</p>
-            <p class="text-xs">File will be processed shortly</p>
-          </div>
-        <% else %>
-          <%# Re-raise if it's a different error %>
-          <% raise e %>
-        <% end %>
-      <% end %>
-    <% end %>
 
-    <div class="mt-2" data-controller="file-drop image-paste">
+    <%= render "icon_uploader",
-      <div class="flex justify-center px-6 pt-5 pb-6 border-2 border-gray-300 border-dashed rounded-md hover:border-blue-400 transition-colors"
+        form: form,
-           data-file-drop-target="dropzone"
+        field: :icon,
-           data-image-paste-target="dropzone"
+        label: "Icon",
-           data-action="dragover->file-drop#dragover dragleave->file-drop#dragleave drop->file-drop#drop paste->image-paste#handlePaste"
+        current_attached: (application.persisted? ? application.icon : nil),
-           tabindex="0">
+        current_label: "Current icon" %>
-        <div class="space-y-1 text-center">
+
-          <svg class="mx-auto h-12 w-12 text-gray-400" stroke="currentColor" fill="none" viewBox="0 0 48 48">
+    <%= render "icon_uploader",
-            <path d="M28 8H12a4 4 0 00-4 4v20m32-12v8m0 0v8a4 4 0 01-4 4H12a4 4 0 01-4-4v-4m32-4l-3.172-3.172a4 4 0 00-5.656 0L28 28M8 32l9.172-9.172a4 4 0 015.656 0L28 28m0 0l4 4m4-24h8m-4-4v8m-12 4h.02" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" />
+        form: form,
-          </svg>
+        field: :icon_dark,
-          <div class="flex text-sm text-gray-600">
+        label: "Dark mode icon (optional)",
-            <label for="<%= form.field_id(:icon) %>" class="relative cursor-pointer bg-white rounded-md font-medium text-blue-600 hover:text-blue-500 focus-within:outline-none focus-within:ring-2 focus-within:ring-offset-2 focus-within:ring-blue-500">
+        help: "Used in place of the main icon when the user's theme is dark. If omitted, the main icon is used in both modes.",
-              <span>Upload a file</span>
+        current_attached: (application.persisted? ? application.icon_dark : nil),
-              <%= form.file_field :icon,
+        current_label: "Current dark-mode icon",
-                  accept: "image/png,image/jpg,image/jpeg,image/gif,image/svg+xml",
+        preview_extra_class: "bg-gray-900" %>
-                  class: "sr-only",
-                  data: {
-                    file_drop_target: "input",
-                    image_paste_target: "input",
-                    action: "change->file-drop#handleFiles"
-                  } %>
-            </label>
-            <p class="pl-1">or drag and drop</p>
-          </div>
-          <p class="text-xs text-gray-500">PNG, JPG, GIF, or SVG up to 2MB</p>
-          <p class="text-xs text-blue-600 font-medium mt-2">💡 Tip: Click here and press Ctrl+V (or Cmd+V) to paste an image from your clipboard</p>
-        </div>
-      </div>
-      <div data-file-drop-target="preview" class="mt-3 hidden">
-        <div class="flex items-center gap-3 p-3 bg-blue-50 rounded-md border border-blue-200">
-          <img data-file-drop-target="previewImage" class="h-12 w-12 rounded object-cover" alt="Preview">
-          <div class="flex-1 min-w-0">
-            <p class="text-sm font-medium text-gray-900" data-file-drop-target="filename"></p>
-            <p class="text-xs text-gray-500" data-file-drop-target="filesize"></p>
-          </div>
-          <button type="button" data-action="click->file-drop#clear" class="text-gray-400 hover:text-gray-600">
-            <svg class="h-5 w-5" fill="currentColor" viewBox="0 0 20 20">
-              <path fill-rule="evenodd" d="M4.293 4.293a1 1 0 011.414 0L10 8.586l4.293-4.293a1 1 0 111.414 1.414L11.414 10l4.293 4.293a1 1 0 01-1.414 1.414L10 11.414l-4.293 4.293a1 1 0 01-1.414-1.414L8.586 10 4.293 5.707a1 1 0 010-1.414z" clip-rule="evenodd" />
-            </svg>
-          </button>
-        </div>
-      </div>
-    </div>
   </div>
 
   <div>
-    <%= form.label :landing_url, "Landing URL", class: "block text-sm font-medium text-gray-700" %>
+    <%= form.label :landing_url, "Landing URL", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
-    <%= form.url_field :landing_url, class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm", placeholder: "https://app.example.com" %>
+    <%= form.url_field :landing_url, class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm", placeholder: "https://app.example.com" %>
-    <p class="mt-1 text-sm text-gray-500">The main URL users will visit to access this application. This will be shown as a link on their dashboard.</p>
+    <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">The main URL users will visit to access this application. This will be shown as a link on their dashboard.</p>
-  </div>
-
-  <div>
-    <%= form.label :app_type, "Application Type", class: "block text-sm font-medium text-gray-700" %>
-    <%= form.select :app_type, [["OpenID Connect (OIDC)", "oidc"], ["Forward Auth (Reverse Proxy)", "forward_auth"]], {}, {
-    class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm",
-    disabled: application.persisted?,
-    data: { action: "change->application-form#updateFieldVisibility", application_form_target: "appTypeSelect" }
-  } %>
-    <% if application.persisted? %>
-      <p class="mt-1 text-sm text-gray-500">Application type cannot be changed after creation.</p>
-    <% end %>
   </div>
 
   <!-- OIDC-specific fields -->
-  <div id="oidc-fields" class="space-y-6 border-t border-gray-200 pt-6 <%= 'hidden' unless application.oidc? || !application.persisted? %>" data-application-form-target="oidcFields">
+  <div id="oidc-fields" class="space-y-6 border-t border-gray-200 dark:border-gray-700 pt-6 <%= 'hidden' unless application.oidc? || !application.persisted? %>" data-application-form-target="oidcFields">
-    <h3 class="text-base font-semibold text-gray-900">OIDC Configuration</h3>
+    <h3 class="text-base font-semibold text-gray-900 dark:text-gray-100">OIDC Configuration</h3>
 
     <!-- Client Type Selection (only for new applications) -->
     <% unless application.persisted? %>
-    <div class="border border-gray-200 rounded-lg p-4 bg-gray-50">
+    <div class="border border-gray-200 dark:border-gray-700 rounded-lg p-4 bg-gray-50 dark:bg-gray-800">
-      <h4 class="text-sm font-semibold text-gray-900 mb-3">Client Type</h4>
+      <h4 class="text-sm font-semibold text-gray-900 dark:text-gray-100 mb-3">Client Type</h4>
       <div class="space-y-3">
         <div class="flex items-start">
-          <%= form.radio_button :is_public_client, "false", checked: !application.is_public_client, class: "mt-1 h-4 w-4 border-gray-300 text-blue-600 focus:ring-blue-500", data: { action: "change->application-form#updatePkceVisibility" } %>
+          <%= form.radio_button :is_public_client, "false", checked: !application.is_public_client, class: "mt-1 h-4 w-4 border-gray-300 dark:border-gray-600 text-blue-600 focus:ring-blue-500", data: { action: "change->application-form#updatePkceVisibility" } %>
           <div class="ml-3">
-            <label for="application_is_public_client_false" class="block text-sm font-medium text-gray-900">Confidential Client (Recommended)</label>
+            <label for="application_is_public_client_false" class="block text-sm font-medium text-gray-900 dark:text-gray-100">Confidential Client (Recommended)</label>
-            <p class="text-sm text-gray-500">Backend server app that can securely store a client secret. Examples: traditional web apps, server-to-server APIs.</p>
+            <p class="text-sm text-gray-500 dark:text-gray-400">Backend server app that can securely store a client secret. Examples: traditional web apps, server-to-server APIs.</p>
           </div>
         </div>
         <div class="flex items-start">
-          <%= form.radio_button :is_public_client, "true", checked: application.is_public_client, class: "mt-1 h-4 w-4 border-gray-300 text-blue-600 focus:ring-blue-500", data: { action: "change->application-form#updatePkceVisibility" } %>
+          <%= form.radio_button :is_public_client, "true", checked: application.is_public_client, class: "mt-1 h-4 w-4 border-gray-300 dark:border-gray-600 text-blue-600 focus:ring-blue-500", data: { action: "change->application-form#updatePkceVisibility" } %>
           <div class="ml-3">
-            <label for="application_is_public_client_true" class="block text-sm font-medium text-gray-900">Public Client</label>
+            <label for="application_is_public_client_true" class="block text-sm font-medium text-gray-900 dark:text-gray-100">Public Client</label>
-            <p class="text-sm text-gray-500">Frontend-only app that cannot store secrets securely. Examples: SPAs (React/Vue), mobile apps, CLI tools. <strong class="text-amber-600">PKCE is required.</strong></p>
+            <p class="text-sm text-gray-500 dark:text-gray-400">Frontend-only app that cannot store secrets securely. Examples: SPAs (React/Vue), mobile apps, CLI tools. <strong class="text-amber-600">PKCE is required.</strong></p>
           </div>
         </div>
       </div>
@@ -144,31 +98,31 @@
     <% else %>
     <!-- Show client type for existing applications (read-only) -->
     <div class="flex items-center gap-2 text-sm">
-      <span class="font-medium text-gray-700">Client Type:</span>
+      <span class="font-medium text-gray-700 dark:text-gray-300">Client Type:</span>
       <% if application.public_client? %>
-        <span class="inline-flex items-center rounded-md bg-amber-50 px-2 py-1 text-xs font-medium text-amber-700 ring-1 ring-inset ring-amber-600/20">Public Client (PKCE Required)</span>
+        <span class="inline-flex items-center rounded-md bg-amber-50 dark:bg-amber-900/30 px-2 py-1 text-xs font-medium text-amber-700 dark:text-amber-300 ring-1 ring-inset ring-amber-600/20">Public Client (PKCE Required)</span>
       <% else %>
-        <span class="inline-flex items-center rounded-md bg-green-50 px-2 py-1 text-xs font-medium text-green-700 ring-1 ring-inset ring-green-600/20">Confidential Client</span>
+        <span class="inline-flex items-center rounded-md bg-green-50 dark:bg-green-900/30 px-2 py-1 text-xs font-medium text-green-700 dark:text-green-300 ring-1 ring-inset ring-green-600/20">Confidential Client</span>
       <% end %>
     </div>
     <% end %>
 
     <!-- OAuth2/OIDC Flow Information -->
-    <div class="bg-blue-50 border border-blue-200 rounded-lg p-4 space-y-3">
+    <div class="bg-blue-50 dark:bg-blue-900/30 border border-blue-200 dark:border-blue-700 rounded-lg p-4 space-y-3">
       <div>
-        <h4 class="text-sm font-semibold text-gray-900 mb-2">OAuth2 Flow</h4>
+        <h4 class="text-sm font-semibold text-gray-900 dark:text-gray-100 mb-2">OAuth2 Flow</h4>
-        <p class="text-sm text-gray-700">
+        <p class="text-sm text-gray-700 dark:text-gray-300">
-          Clinch uses the <code class="bg-white px-1.5 py-0.5 rounded text-xs font-mono">authorization_code</code> flow with <code class="bg-white px-1.5 py-0.5 rounded text-xs font-mono">response_type=code</code> (the modern, secure standard).
+          Clinch uses the <code class="bg-white dark:bg-gray-800 px-1.5 py-0.5 rounded text-xs font-mono">authorization_code</code> flow with <code class="bg-white dark:bg-gray-800 px-1.5 py-0.5 rounded text-xs font-mono">response_type=code</code> (the modern, secure standard).
         </p>
-        <p class="text-sm text-gray-600 mt-1">
+        <p class="text-sm text-gray-600 dark:text-gray-400 mt-1">
-          Deprecated flows like Implicit (<code class="bg-white px-1 rounded text-xs font-mono">id_token</code>, <code class="bg-white px-1 rounded text-xs font-mono">token</code>) are not supported for security reasons.
+          Deprecated flows like Implicit (<code class="bg-white dark:bg-gray-800 px-1 rounded text-xs font-mono">id_token</code>, <code class="bg-white dark:bg-gray-800 px-1 rounded text-xs font-mono">token</code>) are not supported for security reasons.
         </p>
       </div>
 
-      <div class="border-t border-blue-200 pt-3">
+      <div class="border-t border-blue-200 dark:border-blue-700 pt-3">
-        <h4 class="text-sm font-semibold text-gray-900 mb-2">Client Authentication</h4>
+        <h4 class="text-sm font-semibold text-gray-900 dark:text-gray-100 mb-2">Client Authentication</h4>
-        <p class="text-sm text-gray-700">
+        <p class="text-sm text-gray-700 dark:text-gray-300">
-          Clinch supports both <code class="bg-white px-1.5 py-0.5 rounded text-xs font-mono">client_secret_basic</code> (HTTP Basic Auth) and <code class="bg-white px-1.5 py-0.5 rounded text-xs font-mono">client_secret_post</code> (POST parameters) authentication methods.
+          Clinch supports both <code class="bg-white dark:bg-gray-800 px-1.5 py-0.5 rounded text-xs font-mono">client_secret_basic</code> (HTTP Basic Auth) and <code class="bg-white dark:bg-gray-800 px-1.5 py-0.5 rounded text-xs font-mono">client_secret_post</code> (POST parameters) authentication methods.
         </p>
       </div>
     </div>
@@ -176,53 +130,53 @@
     <!-- PKCE Requirement (only for confidential clients) -->
     <div id="pkce-options" data-application-form-target="pkceOptions" class="<%= 'hidden' if application.persisted? && application.public_client? %>">
       <div class="flex items-center">
-        <%= form.check_box :require_pkce, class: "h-4 w-4 rounded border-gray-300 text-blue-600 focus:ring-blue-500" %>
+        <%= form.check_box :require_pkce, class: "h-4 w-4 rounded border-gray-300 dark:border-gray-600 text-blue-600 focus:ring-blue-500" %>
-        <%= form.label :require_pkce, "Require PKCE (Proof Key for Code Exchange)", class: "ml-2 block text-sm font-medium text-gray-900" %>
+        <%= form.label :require_pkce, "Require PKCE (Proof Key for Code Exchange)", class: "ml-2 block text-sm font-medium text-gray-900 dark:text-gray-100" %>
       </div>
-      <p class="ml-6 text-sm text-gray-500">
+      <p class="ml-6 text-sm text-gray-500 dark:text-gray-400">
         Recommended for enhanced security (OAuth 2.1 best practice).
-        <br><span class="text-xs text-gray-400">Note: Public clients always require PKCE regardless of this setting.</span>
+        <br><span class="text-xs text-gray-400 dark:text-gray-500">Note: Public clients always require PKCE regardless of this setting.</span>
       </p>
     </div>
 
     <!-- Skip Consent -->
     <div class="flex items-center">
-      <%= form.check_box :skip_consent, class: "h-4 w-4 rounded border-gray-300 text-blue-600 focus:ring-blue-500" %>
+      <%= form.check_box :skip_consent, class: "h-4 w-4 rounded border-gray-300 dark:border-gray-600 text-blue-600 focus:ring-blue-500" %>
-      <%= form.label :skip_consent, "Skip Consent Screen", class: "ml-2 block text-sm font-medium text-gray-900" %>
+      <%= form.label :skip_consent, "Skip Consent Screen", class: "ml-2 block text-sm font-medium text-gray-900 dark:text-gray-100" %>
     </div>
-    <p class="ml-6 text-sm text-gray-500">
+    <p class="ml-6 text-sm text-gray-500 dark:text-gray-400">
       Automatically grant consent for all users. Useful for first-party or trusted applications.
       <br><span class="text-xs text-amber-600">Only enable for applications you fully trust. Consent is still recorded in the database.</span>
     </p>
 
     <div>
-      <%= form.label :redirect_uris, "Redirect URIs", class: "block text-sm font-medium text-gray-700" %>
+      <%= form.label :redirect_uris, "Redirect URIs", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
-      <%= form.text_area :redirect_uris, rows: 4, class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm font-mono", placeholder: "https://example.com/callback\nhttps://app.example.com/auth/callback" %>
+      <%= form.text_area :redirect_uris, rows: 4, class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm font-mono", placeholder: "https://example.com/callback\nhttps://app.example.com/auth/callback" %>
-      <p class="mt-1 text-sm text-gray-500">One URI per line. These are the allowed callback URLs for your application.</p>
+      <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">One URI per line. These are the allowed callback URLs for your application.</p>
     </div>
 
     <div>
-      <%= form.label :backchannel_logout_uri, "Backchannel Logout URI (Optional)", class: "block text-sm font-medium text-gray-700" %>
+      <%= form.label :backchannel_logout_uri, "Backchannel Logout URI (Optional)", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
-      <%= form.url_field :backchannel_logout_uri, class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm font-mono", placeholder: "https://app.example.com/oidc/backchannel-logout" %>
+      <%= form.url_field :backchannel_logout_uri, class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm font-mono", placeholder: "https://app.example.com/oidc/backchannel-logout" %>
-      <p class="mt-1 text-sm text-gray-500">
+      <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">
         If the application supports OpenID Connect Backchannel Logout, enter the logout endpoint URL.
         When users log out, Clinch will send logout notifications to this endpoint for immediate session termination.
         Leave blank if the application doesn't support backchannel logout.
       </p>
     </div>
 
-    <div class="border-t border-gray-200 pt-4 mt-4">
+    <div class="border-t border-gray-200 dark:border-gray-700 pt-4 mt-4">
-      <h4 class="text-sm font-semibold text-gray-900 mb-3">Token Expiration Settings</h4>
+      <h4 class="text-sm font-semibold text-gray-900 dark:text-gray-100 mb-3">Token Expiration Settings</h4>
-      <p class="text-sm text-gray-500 mb-4">Configure how long tokens remain valid. Shorter times are more secure but require more frequent refreshes.</p>
+      <p class="text-sm text-gray-500 dark:text-gray-400 mb-4">Configure how long tokens remain valid. Shorter times are more secure but require more frequent refreshes.</p>
 
       <div class="grid grid-cols-1 md:grid-cols-3 gap-4">
         <div>
-          <%= form.label :access_token_ttl, "Access Token TTL", class: "block text-sm font-medium text-gray-700" %>
+          <%= form.label :access_token_ttl, "Access Token TTL", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
           <%= form.text_field :access_token_ttl,
               value: application.access_token_ttl || "1h",
               placeholder: "e.g., 1h, 30m, 3600",
-              class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm font-mono" %>
+              class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm font-mono" %>
-          <p class="mt-1 text-xs text-gray-500">
+          <p class="mt-1 text-xs text-gray-500 dark:text-gray-400">
             Range: 5m - 24h
             <br>Default: 1h
             <% if application.access_token_ttl.present? %>
@@ -232,12 +186,12 @@
         </div>
 
         <div>
-          <%= form.label :refresh_token_ttl, "Refresh Token TTL", class: "block text-sm font-medium text-gray-700" %>
+          <%= form.label :refresh_token_ttl, "Refresh Token TTL", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
           <%= form.text_field :refresh_token_ttl,
               value: application.refresh_token_ttl || "30d",
               placeholder: "e.g., 30d, 1M, 2592000",
-              class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm font-mono" %>
+              class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm font-mono" %>
-          <p class="mt-1 text-xs text-gray-500">
+          <p class="mt-1 text-xs text-gray-500 dark:text-gray-400">
             Range: 5m - 90d
             <br>Default: 30d
             <% if application.refresh_token_ttl.present? %>
@@ -247,12 +201,12 @@
         </div>
 
         <div>
-          <%= form.label :id_token_ttl, "ID Token TTL", class: "block text-sm font-medium text-gray-700" %>
+          <%= form.label :id_token_ttl, "ID Token TTL", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
           <%= form.text_field :id_token_ttl,
               value: application.id_token_ttl || "1h",
               placeholder: "e.g., 1h, 30m, 3600",
-              class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm font-mono" %>
+              class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm font-mono" %>
-          <p class="mt-1 text-xs text-gray-500">
+          <p class="mt-1 text-xs text-gray-500 dark:text-gray-400">
             Range: 5m - 24h
             <br>Default: 1h
             <% if application.id_token_ttl.present? %>
@@ -264,16 +218,16 @@
 
       <details class="mt-3">
         <summary class="cursor-pointer text-sm text-blue-600 hover:text-blue-800">Understanding Token Types & Session Length</summary>
-        <div class="mt-2 ml-4 space-y-3 text-sm text-gray-600">
+        <div class="mt-2 ml-4 space-y-3 text-sm text-gray-600 dark:text-gray-400">
           <div>
-            <p class="font-medium text-gray-900 mb-1">Token Types:</p>
+            <p class="font-medium text-gray-900 dark:text-gray-100 mb-1">Token Types:</p>
             <p><strong>Access Token:</strong> Used to access protected resources (APIs). Shorter lifetime = more secure. Users won't notice automatic refreshes.</p>
             <p><strong>Refresh Token:</strong> Used to get new access tokens without re-authentication. Each refresh issues a new refresh token (token rotation).</p>
             <p><strong>ID Token:</strong> Contains user identity information (JWT). Should match access token lifetime in most cases.</p>
           </div>
 
-          <div class="border-t border-gray-200 pt-2">
+          <div class="border-t border-gray-200 dark:border-gray-700 pt-2">
-            <p class="font-medium text-gray-900 mb-1">How Session Length Works:</p>
+            <p class="font-medium text-gray-900 dark:text-gray-100 mb-1">How Session Length Works:</p>
             <p><strong>Refresh Token TTL = Maximum Inactivity Period</strong></p>
             <p class="ml-3">Because refresh tokens are automatically rotated (new token = new expiry), active users can stay logged in indefinitely. The TTL controls how long they can be <em>inactive</em> before requiring re-authentication.</p>
 
@@ -284,21 +238,21 @@
             </ul>
           </div>
 
-          <div class="border-t border-gray-200 pt-2">
+          <div class="border-t border-gray-200 dark:border-gray-700 pt-2">
-            <p class="font-medium text-gray-900 mb-1">Forcing Re-Authentication:</p>
+            <p class="font-medium text-gray-900 dark:text-gray-100 mb-1">Forcing Re-Authentication:</p>
             <p class="ml-3 text-xs">Because of token rotation, there's no way to force periodic re-authentication using TTL settings alone. Active users can stay logged in indefinitely by refreshing tokens before they expire.</p>
 
-            <p class="mt-2 ml-3 text-xs"><strong>To enforce absolute session limits:</strong> Clients can include the <code class="bg-gray-100 px-1 rounded">max_age</code> parameter in their authorization requests to require re-authentication after a specific time, regardless of token rotation.</p>
+            <p class="mt-2 ml-3 text-xs"><strong>To enforce absolute session limits:</strong> Clients can include the <code class="bg-gray-100 dark:bg-gray-700 dark:text-gray-200 px-1 rounded">max_age</code> parameter in their authorization requests to require re-authentication after a specific time, regardless of token rotation.</p>
 
-            <p class="mt-2 ml-3 text-xs"><strong>Example:</strong> A banking app might set <code class="bg-gray-100 px-1 rounded">max_age=900</code> (15 minutes) in the authorization request to force re-authentication every 15 minutes, even if refresh tokens are still valid.</p>
+            <p class="mt-2 ml-3 text-xs"><strong>Example:</strong> A banking app might set <code class="bg-gray-100 dark:bg-gray-700 dark:text-gray-200 px-1 rounded">max_age=900</code> (15 minutes) in the authorization request to force re-authentication every 15 minutes, even if refresh tokens are still valid.</p>
           </div>
 
-          <div class="border-t border-gray-200 pt-2">
+          <div class="border-t border-gray-200 dark:border-gray-700 pt-2">
-            <p class="font-medium text-gray-900 mb-1">Common Configurations:</p>
+            <p class="font-medium text-gray-900 dark:text-gray-100 mb-1">Common Configurations:</p>
             <ul class="ml-3 space-y-1 text-xs">
-              <li><strong>Banking/High Security:</strong> Access TTL = <code class="bg-gray-100 px-1 rounded">5m</code>, Refresh TTL = <code class="bg-gray-100 px-1 rounded">5m</code> → Re-auth every 5 minutes</li>
+              <li><strong>Banking/High Security:</strong> Access TTL = <code class="bg-gray-100 dark:bg-gray-700 dark:text-gray-200 px-1 rounded">5m</code>, Refresh TTL = <code class="bg-gray-100 dark:bg-gray-700 dark:text-gray-200 px-1 rounded">5m</code> → Re-auth every 5 minutes</li>
-              <li><strong>Corporate Tools:</strong> Access TTL = <code class="bg-gray-100 px-1 rounded">1h</code>, Refresh TTL = <code class="bg-gray-100 px-1 rounded">8h</code> → Re-auth after 8 hours inactive</li>
+              <li><strong>Corporate Tools:</strong> Access TTL = <code class="bg-gray-100 dark:bg-gray-700 dark:text-gray-200 px-1 rounded">1h</code>, Refresh TTL = <code class="bg-gray-100 dark:bg-gray-700 dark:text-gray-200 px-1 rounded">8h</code> → Re-auth after 8 hours inactive</li>
-              <li><strong>Personal Apps:</strong> Access TTL = <code class="bg-gray-100 px-1 rounded">1h</code>, Refresh TTL = <code class="bg-gray-100 px-1 rounded">30d</code> → Re-auth after 30 days inactive</li>
+              <li><strong>Personal Apps:</strong> Access TTL = <code class="bg-gray-100 dark:bg-gray-700 dark:text-gray-200 px-1 rounded">1h</code>, Refresh TTL = <code class="bg-gray-100 dark:bg-gray-700 dark:text-gray-200 px-1 rounded">30d</code> → Re-auth after 30 days inactive</li>
             </ul>
           </div>
         </div>
@@ -307,30 +261,30 @@
   </div>
 
   <!-- Forward Auth-specific fields -->
-  <div id="forward-auth-fields" class="space-y-6 border-t border-gray-200 pt-6 <%= 'hidden' unless application.forward_auth? %>" data-application-form-target="forwardAuthFields">
+  <div id="forward-auth-fields" class="space-y-6 border-t border-gray-200 dark:border-gray-700 pt-6 <%= 'hidden' unless application.forward_auth? %>" data-application-form-target="forwardAuthFields">
-    <h3 class="text-base font-semibold text-gray-900">Forward Auth Configuration</h3>
+    <h3 class="text-base font-semibold text-gray-900 dark:text-gray-100">Forward Auth Configuration</h3>
 
     <div>
-      <%= form.label :domain_pattern, "Domain Pattern", class: "block text-sm font-medium text-gray-700" %>
+      <%= form.label :domain_pattern, "Domain Pattern", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
-      <%= form.text_field :domain_pattern, class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm font-mono", placeholder: "*.example.com or app.example.com" %>
+      <%= form.text_field :domain_pattern, class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm font-mono", placeholder: "*.example.com or app.example.com" %>
-      <p class="mt-1 text-sm text-gray-500">Domain pattern to match. Use * for wildcard subdomains (e.g., *.example.com matches app.example.com, api.example.com, etc.)</p>
+      <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">Domain pattern to match. Use * for wildcard subdomains (e.g., *.example.com matches app.example.com, api.example.com, etc.)</p>
     </div>
 
     <div data-controller="json-validator" data-json-validator-valid-class="border-green-500 focus:border-green-500 focus:ring-green-500" data-json-validator-invalid-class="border-red-500 focus:border-red-500 focus:ring-red-500" data-json-validator-valid-status-class="text-green-600" data-json-validator-invalid-status-class="text-red-600">
-      <%= form.label :headers_config, "Custom Headers Configuration (JSON)", class: "block text-sm font-medium text-gray-700" %>
+      <%= form.label :headers_config, "Custom Headers Configuration (JSON)", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
       <%= form.text_area :headers_config, value: (application.headers_config.present? && application.headers_config.any? ? JSON.pretty_generate(application.headers_config) : ""), rows: 10,
-          class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm font-mono",
+          class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm font-mono",
           placeholder: '{"user": "Remote-User", "groups": "Remote-Groups"}',
           data: {
             action: "input->json-validator#validate blur->json-validator#format",
             json_validator_target: "textarea"
           } %>
-      <div class="mt-2 text-sm text-gray-600 space-y-1">
+      <div class="mt-2 text-sm text-gray-600 dark:text-gray-400 space-y-1">
         <div class="flex items-center justify-between">
           <p class="font-medium">Optional: Customize header names sent to your application.</p>
           <div class="flex items-center gap-2">
-            <button type="button" data-action="json-validator#format" class="text-xs bg-gray-100 hover:bg-gray-200 px-2 py-1 rounded">Format JSON</button>
+            <button type="button" data-action="json-validator#format" class="text-xs bg-gray-100 dark:bg-gray-700 dark:text-gray-200 hover:bg-gray-200 dark:hover:bg-gray-600 px-2 py-1 rounded">Format JSON</button>
-            <button type="button" data-action="json-validator#insertSample" data-json-sample='{"user": "Remote-User", "groups": "Remote-Groups", "email": "Remote-Email", "name": "Remote-Name", "username": "Remote-Username", "admin": "Remote-Admin"}' class="text-xs bg-blue-100 hover:bg-blue-200 text-blue-700 px-2 py-1 rounded">Insert Example</button>
+            <button type="button" data-action="json-validator#insertSample" data-json-sample='{"user": "Remote-User", "groups": "Remote-Groups", "email": "Remote-Email", "name": "Remote-Name", "username": "Remote-Username", "admin": "Remote-Admin"}' class="text-xs bg-blue-100 dark:bg-blue-900/50 hover:bg-blue-200 dark:hover:bg-blue-900 text-blue-700 dark:text-blue-300 px-2 py-1 rounded">Insert Example</button>
           </div>
         </div>
         <p><strong>Default headers:</strong> X-Remote-User, X-Remote-Email, X-Remote-Name, X-Remote-Username, X-Remote-Groups, X-Remote-Admin</p>
@@ -338,13 +292,13 @@
         <details class="mt-2">
           <summary class="cursor-pointer text-blue-600 hover:text-blue-800">Show available header keys and what data they send</summary>
           <div class="mt-2 ml-4 space-y-1 text-xs">
-            <p><code class="bg-gray-100 px-1 rounded">user</code> - User's email address</p>
+            <p><code class="bg-gray-100 dark:bg-gray-700 dark:text-gray-200 px-1 rounded">user</code> - User's email address</p>
-            <p><code class="bg-gray-100 px-1 rounded">email</code> - User's email address</p>
+            <p><code class="bg-gray-100 dark:bg-gray-700 dark:text-gray-200 px-1 rounded">email</code> - User's email address</p>
-            <p><code class="bg-gray-100 px-1 rounded">name</code> - User's display name (falls back to email if not set)</p>
+            <p><code class="bg-gray-100 dark:bg-gray-700 dark:text-gray-200 px-1 rounded">name</code> - User's display name (falls back to email if not set)</p>
-            <p><code class="bg-gray-100 px-1 rounded">username</code> - User's login username (only sent if set)</p>
+            <p><code class="bg-gray-100 dark:bg-gray-700 dark:text-gray-200 px-1 rounded">username</code> - User's login username (only sent if set)</p>
-            <p><code class="bg-gray-100 px-1 rounded">groups</code> - Comma-separated list of group names (e.g., "admin,developers")</p>
+            <p><code class="bg-gray-100 dark:bg-gray-700 dark:text-gray-200 px-1 rounded">groups</code> - Comma-separated list of group names (e.g., "admin,developers")</p>
-            <p><code class="bg-gray-100 px-1 rounded">admin</code> - "true" or "false" indicating admin status</p>
+            <p><code class="bg-gray-100 dark:bg-gray-700 dark:text-gray-200 px-1 rounded">admin</code> - "true" or "false" indicating admin status</p>
-            <p class="mt-2 italic">Example: <code class="bg-gray-100 px-1 rounded">{"user": "Remote-User", "groups": "Remote-Groups", "username": "Remote-Username"}</code></p>
+            <p class="mt-2 italic">Example: <code class="bg-gray-100 dark:bg-gray-700 dark:text-gray-200 px-1 rounded">{"user": "Remote-User", "groups": "Remote-Groups", "username": "Remote-Username"}</code></p>
             <p class="italic">Need custom user fields? Add them to user's custom_claims for OIDC tokens</p>
           </div>
         </details>
@@ -353,31 +307,30 @@
   </div>
 
   <div>
-    <%= form.label :group_ids, "Allowed Groups (Optional)", class: "block text-sm font-medium text-gray-700" %>
+    <%= form.label :group_ids, "Allowed Groups (Optional)", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
-    <div class="mt-2 space-y-2 max-h-48 overflow-y-auto border border-gray-200 rounded-md p-3">
+    <div class="mt-2 space-y-2 max-h-48 overflow-y-auto border border-gray-200 dark:border-gray-700 rounded-md p-3">
       <% if @available_groups.any? %>
         <% @available_groups.each do |group| %>
           <div class="flex items-center">
-            <%= check_box_tag "application[group_ids][]", group.id, application.allowed_groups.include?(group), class: "h-4 w-4 rounded border-gray-300 text-blue-600 focus:ring-blue-500" %>
+            <%= check_box_tag "application[group_ids][]", group.id, application.allowed_groups.include?(group), class: "h-4 w-4 rounded border-gray-300 dark:border-gray-600 text-blue-600 focus:ring-blue-500" %>
-            <%= label_tag "application_group_ids_#{group.id}", group.name, class: "ml-2 text-sm text-gray-900" %>
+            <%= label_tag "application_group_ids_#{group.id}", group.name, class: "ml-2 text-sm text-gray-900 dark:text-gray-100" %>
-            <span class="ml-2 text-xs text-gray-500">(<%= pluralize(group.users.count, "member") %>)</span>
+            <span class="ml-2 text-xs text-gray-500 dark:text-gray-400">(<%= pluralize(group.users.count, "member") %>)</span>
           </div>
         <% end %>
       <% else %>
-        <p class="text-sm text-gray-500">No groups available. Create groups first to restrict access.</p>
+        <p class="text-sm text-gray-500 dark:text-gray-400">No groups available. Create groups first to restrict access.</p>
       <% end %>
     </div>
-    <p class="mt-1 text-sm text-gray-500">If no groups are selected, all active users can access this application.</p>
+    <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">If no groups are selected, all active users can access this application.</p>
   </div>
 
   <div class="flex items-center">
-    <%= form.check_box :active, class: "h-4 w-4 rounded border-gray-300 text-blue-600 focus:ring-blue-500" %>
+    <%= form.check_box :active, class: "h-4 w-4 rounded border-gray-300 dark:border-gray-600 text-blue-600 focus:ring-blue-500" %>
-    <%= form.label :active, "Active", class: "ml-2 block text-sm text-gray-900" %>
+    <%= form.label :active, "Active", class: "ml-2 block text-sm text-gray-900 dark:text-gray-100" %>
   </div>
 
   <div class="flex gap-3">
     <%= form.submit application.persisted? ? "Update Application" : "Create Application", class: "rounded-md bg-blue-600 px-3 py-2 text-sm font-semibold text-white shadow-sm hover:bg-blue-500 focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-blue-600" %>
-    <%= link_to "Cancel", admin_applications_path, class: "rounded-md bg-white px-3 py-2 text-sm font-semibold text-gray-900 shadow-sm ring-1 ring-inset ring-gray-300 hover:bg-gray-50" %>
+    <%= link_to "Cancel", admin_applications_path, class: "rounded-md bg-white dark:bg-gray-700 px-3 py-2 text-sm font-semibold text-gray-900 dark:text-gray-200 shadow-sm ring-1 ring-inset ring-gray-300 dark:ring-gray-600 hover:bg-gray-50 dark:hover:bg-gray-600" %>
   </div>
 <% end %>
-

app/views/admin/applications/_icon_uploader.html.erb

@@ -0,0 +1,66 @@
+<%# Compact icon uploader. Locals:
+      form              - the form builder
+      field             - symbol for the file field (:icon or :icon_dark)
+      label             - heading text
+      help              - small helper paragraph (optional)
+      current_attached  - the attachment to show as "current" preview
+      current_label     - text for the preview row (e.g. "Current icon")
+      preview_extra_class - extra css for the preview img (e.g. "bg-gray-900")
+%>
+<div>
+  <%= form.label field, label, class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
+  <% if local_assigns[:help].present? %>
+    <p class="mt-1 text-xs text-gray-500 dark:text-gray-400"><%= help %></p>
+  <% end %>
+
+  <% if current_attached&.attached? && current_attached.blob&.persisted? && current_attached.blob.key.present? %>
+    <div class="mt-2 mb-3 flex items-center gap-3">
+      <%= image_tag current_attached, class: "h-12 w-12 rounded-md object-cover border border-gray-200 dark:border-gray-700 #{local_assigns[:preview_extra_class]}", alt: current_label %>
+      <div class="text-sm text-gray-600 dark:text-gray-400">
+        <p class="font-medium"><%= current_label %></p>
+        <p class="text-xs"><%= number_to_human_size(current_attached.blob.byte_size) %></p>
+      </div>
+    </div>
+  <% end %>
+
+  <div class="mt-2" data-controller="file-drop image-paste">
+    <div class="flex items-center gap-3 px-3 py-2 border border-dashed border-gray-300 dark:border-gray-600 rounded-md hover:border-blue-400 focus-within:border-blue-500 focus-within:ring-1 focus-within:ring-blue-500 transition-colors"
+         data-file-drop-target="dropzone"
+         data-image-paste-target="dropzone"
+         data-action="dragover->file-drop#dragover dragleave->file-drop#dragleave drop->file-drop#drop paste->image-paste#handlePaste"
+         tabindex="0">
+      <svg class="h-5 w-5 text-gray-400 dark:text-gray-500 shrink-0" stroke="currentColor" fill="none" viewBox="0 0 24 24">
+        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="1.8" d="M12 4v12m0-12l-4 4m4-4l4 4M4 17v2a2 2 0 002 2h12a2 2 0 002-2v-2"/>
+      </svg>
+      <div class="flex-1 text-sm">
+        <label for="<%= form.field_id(field) %>" class="cursor-pointer font-medium text-blue-600 hover:text-blue-500 focus-within:outline-none">
+          <span>Upload</span>
+          <%= form.file_field field,
+              accept: "image/png,image/jpg,image/jpeg,image/gif,image/svg+xml",
+              class: "sr-only",
+              data: {
+                file_drop_target: "input",
+                image_paste_target: "input",
+                action: "change->file-drop#handleFiles"
+              } %>
+        </label>
+        <span class="text-gray-600 dark:text-gray-400"> · drag and drop · or click and paste (⌘V)</span>
+        <p class="text-xs text-gray-500 dark:text-gray-400">PNG, JPG, GIF or SVG · max 2MB</p>
+      </div>
+    </div>
+    <div data-file-drop-target="preview" class="mt-2 hidden">
+      <div class="flex items-center gap-3 p-2 bg-blue-50 dark:bg-blue-900/30 rounded-md border border-blue-200 dark:border-blue-700">
+        <img data-file-drop-target="previewImage" class="h-10 w-10 rounded object-cover" alt="Preview">
+        <div class="flex-1 min-w-0">
+          <p class="text-sm font-medium text-gray-900 dark:text-gray-100" data-file-drop-target="filename"></p>
+          <p class="text-xs text-gray-500 dark:text-gray-400" data-file-drop-target="filesize"></p>
+        </div>
+        <button type="button" data-action="click->file-drop#clear" class="text-gray-400 dark:text-gray-500 hover:text-gray-600 dark:hover:text-gray-300">
+          <svg class="h-4 w-4" fill="currentColor" viewBox="0 0 20 20">
+            <path fill-rule="evenodd" d="M4.293 4.293a1 1 0 011.414 0L10 8.586l4.293-4.293a1 1 0 111.414 1.414L11.414 10l4.293 4.293a1 1 0 01-1.414 1.414L10 11.414l-4.293 4.293a1 1 0 01-1.414-1.414L8.586 10 4.293 5.707a1 1 0 010-1.414z" clip-rule="evenodd" />
+          </svg>
+        </button>
+      </div>
+    </div>
+  </div>
+</div>

app/views/admin/applications/edit.html.erb

@@ -1,5 +1,5 @@
 <div class="max-w-3xl">
-  <h1 class="text-2xl font-semibold text-gray-900 mb-6">Edit Application</h1>
+  <h1 class="text-2xl font-semibold text-gray-900 dark:text-gray-100 mb-6">Edit Application</h1>
-  <p class="text-sm text-gray-600 mb-6">Editing: <%= @application.name %></p>
+  <p class="text-sm text-gray-600 dark:text-gray-400 mb-6">Editing: <%= @application.name %></p>
   <%= render "form", application: @application %>
 </div>

app/views/admin/applications/index.html.erb

@@ -1,71 +1,85 @@
 <div class="sm:flex sm:items-center">
   <div class="sm:flex-auto">
-    <h1 class="text-2xl font-semibold text-gray-900">Applications</h1>
+    <h1 class="text-2xl font-semibold text-gray-900 dark:text-gray-100">Applications</h1>
-    <p class="mt-2 text-sm text-gray-700">Manage OIDC Clients.</p>
+    <p class="mt-2 text-sm text-gray-700 dark:text-gray-300">Manage OIDC Clients.</p>
   </div>
   <div class="mt-4 sm:mt-0 sm:ml-16 sm:flex-none">
     <%= link_to "New Application", new_admin_application_path, class: "block rounded-md bg-blue-600 px-3 py-2 text-center text-sm font-semibold text-white shadow-sm hover:bg-blue-500 focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-blue-600" %>
   </div>
 </div>
 
+<dl class="mt-4 grid grid-cols-3 gap-4">
+  <div class="rounded-lg bg-white dark:bg-gray-800 border border-gray-200 dark:border-gray-700 px-4 py-3">
+    <dt class="text-xs text-gray-500 dark:text-gray-400">Applications</dt>
+    <dd class="mt-1 text-2xl font-semibold text-gray-900 dark:text-gray-100"><%= @applications.size %></dd>
+  </div>
+  <div class="rounded-lg bg-white dark:bg-gray-800 border border-gray-200 dark:border-gray-700 px-4 py-3">
+    <dt class="text-xs text-gray-500 dark:text-gray-400">Users with access</dt>
+    <dd class="mt-1 text-2xl font-semibold text-gray-900 dark:text-gray-100"><%= @total_users_with_access %></dd>
+  </div>
+  <div class="rounded-lg bg-white dark:bg-gray-800 border border-gray-200 dark:border-gray-700 px-4 py-3">
+    <dt class="text-xs text-gray-500 dark:text-gray-400">Groups granting access</dt>
+    <dd class="mt-1 text-2xl font-semibold text-gray-900 dark:text-gray-100"><%= @total_groups_granting_access %></dd>
+  </div>
+</dl>
+
 <div class="mt-8 flow-root">
   <div class="-mx-4 -my-2 overflow-x-auto sm:-mx-6 lg:-mx-8">
     <div class="inline-block min-w-full py-2 align-middle sm:px-6 lg:px-8">
-      <table class="min-w-full divide-y divide-gray-300">
+      <table class="min-w-full divide-y divide-gray-300 dark:divide-gray-600">
         <thead>
           <tr>
-            <th scope="col" class="py-3.5 pl-4 pr-3 text-left text-sm font-semibold text-gray-900 sm:pl-0">Application</th>
+            <th scope="col" class="py-3.5 pl-4 pr-3 text-left text-sm font-semibold text-gray-900 dark:text-gray-100 sm:pl-0">Application</th>
-            <th scope="col" class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900">Slug</th>
+            <th scope="col" class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900 dark:text-gray-100">Slug</th>
-            <th scope="col" class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900">Type</th>
+            <th scope="col" class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900 dark:text-gray-100">Type</th>
-            <th scope="col" class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900">Status</th>
+            <th scope="col" class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900 dark:text-gray-100">Status</th>
-            <th scope="col" class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900">Groups</th>
+            <th scope="col" class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900 dark:text-gray-100">Access</th>
             <th scope="col" class="relative py-3.5 pl-3 pr-4 sm:pr-0">
               <span class="sr-only">Actions</span>
             </th>
           </tr>
         </thead>
-        <tbody class="divide-y divide-gray-200">
+        <tbody class="divide-y divide-gray-200 dark:divide-gray-700">
           <% @applications.each do |application| %>
             <tr>
-              <td class="whitespace-nowrap py-4 pl-4 pr-3 text-sm font-medium text-gray-900 sm:pl-0">
+              <td class="whitespace-nowrap py-4 pl-4 pr-3 text-sm font-medium text-gray-900 dark:text-gray-100 sm:pl-0">
                 <div class="flex items-center gap-3">
                   <% if application.icon.attached? %>
-                    <%= image_tag application.icon, class: "h-10 w-10 rounded-lg object-cover border border-gray-200 flex-shrink-0", alt: "#{application.name} icon" %>
+                    <%= app_icon_picture application, class: "h-10 w-10 rounded-lg object-cover border border-gray-200 dark:border-gray-700 flex-shrink-0" %>
                   <% else %>
-                    <div class="h-10 w-10 rounded-lg bg-gray-100 border border-gray-200 flex items-center justify-center flex-shrink-0">
+                    <%= render "shared/app_monogram", name: application.name, class: "h-10 w-10 rounded-lg flex-shrink-0" %>
-                      <svg class="h-6 w-6 text-gray-400" fill="none" viewBox="0 0 24 24" stroke="currentColor">
-                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 16l4.586-4.586a2 2 0 012.828 0L16 16m-2-2l1.586-1.586a2 2 0 012.828 0L20 14m-6-6h.01M6 20h12a2 2 0 002-2V6a2 2 0 00-2-2H6a2 2 0 00-2 2v12a2 2 0 002 2z" />
-                      </svg>
-                    </div>
                   <% end %>
                   <%= link_to application.name, admin_application_path(application), class: "text-blue-600 hover:text-blue-900" %>
                 </div>
               </td>
-              <td class="whitespace-nowrap px-3 py-4 text-sm text-gray-500">
+              <td class="whitespace-nowrap px-3 py-4 text-sm text-gray-500 dark:text-gray-400">
-                <code class="text-xs bg-gray-100 px-2 py-1 rounded"><%= application.slug %></code>
+                <code class="text-xs bg-gray-100 dark:bg-gray-700 dark:text-gray-200 px-2 py-1 rounded"><%= application.slug %></code>
               </td>
-              <td class="whitespace-nowrap px-3 py-4 text-sm text-gray-500">
+              <td class="whitespace-nowrap px-3 py-4 text-sm text-gray-500 dark:text-gray-400">
                 <% case application.app_type %>
                 <% when "oidc" %>
-                  <span class="inline-flex items-center rounded-full bg-purple-100 px-2 py-1 text-xs font-medium text-purple-700">OIDC</span>
+                  <span class="inline-flex items-center rounded-full bg-purple-100 dark:bg-purple-900/50 px-2 py-1 text-xs font-medium text-purple-700 dark:text-purple-300">OIDC</span>
                 <% when "forward_auth" %>
-                  <span class="inline-flex items-center rounded-full bg-blue-100 px-2 py-1 text-xs font-medium text-blue-700">Forward Auth</span>
+                  <span class="inline-flex items-center rounded-full bg-blue-100 dark:bg-blue-900/50 px-2 py-1 text-xs font-medium text-blue-700 dark:text-blue-300">Forward Auth</span>
                 <% when "saml" %>
-                  <span class="inline-flex items-center rounded-full bg-orange-100 px-2 py-1 text-xs font-medium text-orange-700">SAML</span>
+                  <span class="inline-flex items-center rounded-full bg-orange-100 dark:bg-orange-900/50 px-2 py-1 text-xs font-medium text-orange-700 dark:text-orange-300">SAML</span>
                 <% end %>
               </td>
-              <td class="whitespace-nowrap px-3 py-4 text-sm text-gray-500">
+              <td class="whitespace-nowrap px-3 py-4 text-sm text-gray-500 dark:text-gray-400">
                 <% if application.active? %>
-                  <span class="inline-flex items-center rounded-full bg-green-100 px-2 py-1 text-xs font-medium text-green-700">Active</span>
+                  <span class="inline-flex items-center rounded-full bg-green-100 dark:bg-green-900/50 px-2 py-1 text-xs font-medium text-green-700 dark:text-green-300">Active</span>
                 <% else %>
-                  <span class="inline-flex items-center rounded-full bg-gray-100 px-2 py-1 text-xs font-medium text-gray-700">Inactive</span>
+                  <span class="inline-flex items-center rounded-full bg-gray-100 dark:bg-gray-700 px-2 py-1 text-xs font-medium text-gray-700 dark:text-gray-300">Inactive</span>
                 <% end %>
               </td>
-              <td class="whitespace-nowrap px-3 py-4 text-sm text-gray-500">
+              <td class="whitespace-nowrap px-3 py-4 text-sm text-gray-500 dark:text-gray-400">
-                <% if application.allowed_groups.empty? %>
+                <% groups_count = application.allowed_groups.size %>
-                  <span class="text-gray-400">All users</span>
+                <% users_count = @user_count_by_app[application.id] || 0 %>
+                <% if groups_count.zero? %>
+                  <span class="inline-flex items-center rounded-full bg-amber-100 dark:bg-amber-900/40 px-2 py-0.5 text-xs font-medium text-amber-700 dark:text-amber-300">No one</span>
                 <% else %>
-                  <%= application.allowed_groups.count %>
+                  <span class="text-gray-700 dark:text-gray-200"><%= pluralize(users_count, "user") %></span>
+                  <span class="text-gray-400 dark:text-gray-500"> · <%= pluralize(groups_count, "group") %></span>
                 <% end %>
               </td>
               <td class="relative whitespace-nowrap py-4 pl-3 pr-4 text-right text-sm font-medium sm:pr-0">

app/views/admin/applications/new.html.erb

@@ -1,4 +1,4 @@
 <div class="max-w-3xl">
-  <h1 class="text-2xl font-semibold text-gray-900 mb-6">New Application</h1>
+  <h1 class="text-2xl font-semibold text-gray-900 dark:text-gray-100 mb-6">New Application</h1>
   <%= render "form", application: @application %>
 </div>

app/views/admin/applications/show.html.erb

@@ -1,30 +1,47 @@
 <div class="mb-6">
   <% if flash[:client_id] %>
-    <div class="bg-yellow-50 border border-yellow-200 rounded-md p-4 mb-6">
+    <div class="bg-yellow-50 dark:bg-yellow-900/30 border border-yellow-200 dark:border-yellow-700 rounded-md p-4 mb-6">
-      <h4 class="text-sm font-medium text-yellow-800 mb-2">🔐 OIDC Client Credentials</h4>
+      <h4 class="text-sm font-medium text-yellow-800 dark:text-yellow-200 mb-2">🔐 OIDC Client Credentials</h4>
       <% if flash[:public_client] %>
-        <p class="text-xs text-yellow-700 mb-3">This is a public client. Copy the client ID below.</p>
+        <p class="text-xs text-yellow-700 dark:text-yellow-300 mb-3">This is a public client. Copy the client ID below.</p>
       <% else %>
-        <p class="text-xs text-yellow-700 mb-3">Copy these credentials now. The client secret will not be shown again.</p>
+        <p class="text-xs text-yellow-700 dark:text-yellow-300 mb-3">Copy these credentials now. The client secret will not be shown again.</p>
       <% end %>
       <div class="space-y-2">
         <div>
-          <span class="text-xs font-medium text-yellow-700">Client ID:</span>
+          <span class="text-xs font-medium text-yellow-700 dark:text-yellow-300">Client ID:</span>
         </div>
-        <code class="block bg-yellow-100 px-3 py-2 rounded font-mono text-xs break-all"><%= flash[:client_id] %></code>
+        <code class="block bg-yellow-100 dark:bg-yellow-900/50 px-3 py-2 rounded font-mono text-xs break-all"><%= flash[:client_id] %></code>
         <% if flash[:client_secret] %>
           <div class="mt-3">
-            <span class="text-xs font-medium text-yellow-700">Client Secret:</span>
+            <span class="text-xs font-medium text-yellow-700 dark:text-yellow-300">Client Secret:</span>
           </div>
-          <code class="block bg-yellow-100 px-3 py-2 rounded font-mono text-xs break-all"><%= flash[:client_secret] %></code>
+          <code class="block bg-yellow-100 dark:bg-yellow-900/50 px-3 py-2 rounded font-mono text-xs break-all"><%= flash[:client_secret] %></code>
         <% elsif flash[:public_client] %>
           <div class="mt-3">
-            <span class="text-xs font-medium text-yellow-700">Client Secret:</span>
+            <span class="text-xs font-medium text-yellow-700 dark:text-yellow-300">Client Secret:</span>
           </div>
-          <div class="bg-yellow-100 px-3 py-2 rounded text-xs text-yellow-600">
+          <div class="bg-yellow-100 dark:bg-yellow-900/50 px-3 py-2 rounded text-xs text-yellow-600 dark:text-yellow-400">
             Public clients do not have a client secret. PKCE is required.
           </div>
         <% end %>
+
+        <% env_lines = oidc_env_lines(@application, client_secret: flash[:client_secret]) %>
+
+        <div class="mt-4" data-controller="clipboard">
+          <div class="flex items-center justify-between mb-2">
+            <span class="text-xs font-medium text-yellow-700 dark:text-yellow-300">Environment variables (copy &amp; paste):</span>
+            <button type="button"
+                    data-action="clipboard#copy"
+                    class="text-xs font-medium text-yellow-700 dark:text-yellow-300 hover:text-yellow-900 dark:hover:text-yellow-100 underline">
+              <span data-clipboard-target="label">Copy</span>
+            </button>
+          </div>
+          <textarea data-clipboard-target="source"
+                    readonly
+                    rows="<%= env_lines.length %>"
+                    class="block w-full bg-yellow-100 dark:bg-yellow-900/50 px-3 py-2 rounded font-mono text-xs text-gray-900 dark:text-gray-100 resize-none focus:outline-none focus:ring-1 focus:ring-yellow-500"><%= env_lines.join("\n") %></textarea>
+        </div>
       </div>
     </div>
   <% end %>
@@ -32,21 +49,17 @@
   <div class="sm:flex sm:items-start sm:justify-between">
     <div class="flex items-start gap-4">
       <% if @application.icon.attached? %>
-        <%= image_tag @application.icon, class: "h-16 w-16 rounded-lg object-cover border border-gray-200 shrink-0", alt: "#{@application.name} icon" %>
+        <%= app_icon_picture @application, class: "h-16 w-16 rounded-lg object-cover border border-gray-200 dark:border-gray-700 shrink-0" %>
       <% else %>
-        <div class="h-16 w-16 rounded-lg bg-gray-100 border border-gray-200 flex items-center justify-center shrink-0">
+        <%= render "shared/app_monogram", name: @application.name, class: "h-16 w-16 rounded-lg shrink-0" %>
-          <svg class="h-8 w-8 text-gray-400" fill="none" viewBox="0 0 24 24" stroke="currentColor">
-            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 16l4.586-4.586a2 2 0 012.828 0L16 16m-2-2l1.586-1.586a2 2 0 012.828 0L20 14m-6-6h.01M6 20h12a2 2 0 002-2V6a2 2 0 00-2-2H6a2 2 0 00-2 2v12a2 2 0 002 2z" />
-          </svg>
-        </div>
       <% end %>
       <div>
-        <h1 class="text-2xl font-semibold text-gray-900"><%= @application.name %></h1>
+        <h1 class="text-2xl font-semibold text-gray-900 dark:text-gray-100"><%= @application.name %></h1>
-        <p class="mt-1 text-sm text-gray-500"><%= @application.description %></p>
+        <p class="mt-1 text-sm text-gray-500 dark:text-gray-400"><%= @application.description %></p>
       </div>
     </div>
     <div class="mt-4 sm:mt-0 flex gap-3">
-      <%= link_to "Edit", edit_admin_application_path(@application), class: "rounded-md bg-white px-3 py-2 text-sm font-semibold text-gray-900 shadow-sm ring-1 ring-inset ring-gray-300 hover:bg-gray-50" %>
+      <%= link_to "Edit", edit_admin_application_path(@application), class: "rounded-md bg-white dark:bg-gray-700 px-3 py-2 text-sm font-semibold text-gray-900 dark:text-gray-200 shadow-sm ring-1 ring-inset ring-gray-300 dark:ring-gray-600 hover:bg-gray-50 dark:hover:bg-gray-600" %>
       <%= button_to "Delete", admin_application_path(@application), method: :delete, data: { turbo_confirm: "Are you sure?" }, class: "rounded-md bg-red-600 px-3 py-2 text-sm font-semibold text-white shadow-sm hover:bg-red-500" %>
     </div>
   </div>
@@ -54,42 +67,42 @@
 
 <div class="space-y-6">
   <!-- Basic Information -->
-  <div class="bg-white shadow sm:rounded-lg">
+  <div class="bg-white dark:bg-gray-800 shadow sm:rounded-lg">
     <div class="px-4 py-5 sm:p-6">
-      <h3 class="text-base font-semibold leading-6 text-gray-900 mb-4">Basic Information</h3>
+      <h3 class="text-base font-semibold leading-6 text-gray-900 dark:text-gray-100 mb-4">Basic Information</h3>
       <dl class="grid grid-cols-1 gap-x-4 gap-y-6 sm:grid-cols-2">
         <div>
-          <dt class="text-sm font-medium text-gray-500">Slug</dt>
+          <dt class="text-sm font-medium text-gray-500 dark:text-gray-400">Slug</dt>
-          <dd class="mt-1 text-sm text-gray-900"><code class="bg-gray-100 px-2 py-1 rounded"><%= @application.slug %></code></dd>
+          <dd class="mt-1 text-sm text-gray-900 dark:text-gray-100"><code class="bg-gray-100 dark:bg-gray-700 dark:text-gray-200 px-2 py-1 rounded"><%= @application.slug %></code></dd>
         </div>
         <div>
-          <dt class="text-sm font-medium text-gray-500">Type</dt>
+          <dt class="text-sm font-medium text-gray-500 dark:text-gray-400">Type</dt>
-          <dd class="mt-1 text-sm text-gray-900">
+          <dd class="mt-1 text-sm text-gray-900 dark:text-gray-100">
             <% case @application.app_type %>
             <% when "oidc" %>
-              <span class="inline-flex items-center rounded-full bg-purple-100 px-2 py-1 text-xs font-medium text-purple-700">OIDC</span>
+              <span class="inline-flex items-center rounded-full bg-purple-100 dark:bg-purple-900/50 px-2 py-1 text-xs font-medium text-purple-700 dark:text-purple-300">OIDC</span>
             <% when "forward_auth" %>
-              <span class="inline-flex items-center rounded-full bg-blue-100 px-2 py-1 text-xs font-medium text-blue-700">Forward Auth</span>
+              <span class="inline-flex items-center rounded-full bg-blue-100 dark:bg-blue-900/50 px-2 py-1 text-xs font-medium text-blue-700 dark:text-blue-300">Forward Auth</span>
             <% end %>
           </dd>
         </div>
         <div>
-          <dt class="text-sm font-medium text-gray-500">Status</dt>
+          <dt class="text-sm font-medium text-gray-500 dark:text-gray-400">Status</dt>
-          <dd class="mt-1 text-sm text-gray-900">
+          <dd class="mt-1 text-sm text-gray-900 dark:text-gray-100">
             <% if @application.active? %>
-              <span class="inline-flex items-center rounded-full bg-green-100 px-2 py-1 text-xs font-medium text-green-700">Active</span>
+              <span class="inline-flex items-center rounded-full bg-green-100 dark:bg-green-900/50 px-2 py-1 text-xs font-medium text-green-700 dark:text-green-300">Active</span>
             <% else %>
-              <span class="inline-flex items-center rounded-full bg-gray-100 px-2 py-1 text-xs font-medium text-gray-700">Inactive</span>
+              <span class="inline-flex items-center rounded-full bg-gray-100 dark:bg-gray-700 px-2 py-1 text-xs font-medium text-gray-700 dark:text-gray-300">Inactive</span>
             <% end %>
           </dd>
         </div>
         <div class="sm:col-span-2">
-          <dt class="text-sm font-medium text-gray-500">Landing URL</dt>
+          <dt class="text-sm font-medium text-gray-500 dark:text-gray-400">Landing URL</dt>
-          <dd class="mt-1 text-sm text-gray-900">
+          <dd class="mt-1 text-sm text-gray-900 dark:text-gray-100">
             <% if @application.landing_url.present? %>
               <%= link_to @application.landing_url, @application.landing_url, target: "_blank", rel: "noopener noreferrer", class: "text-blue-600 hover:text-blue-800 underline" %>
             <% else %>
-              <span class="text-gray-400 italic">Not configured</span>
+              <span class="text-gray-400 dark:text-gray-500 italic">Not configured</span>
             <% end %>
           </dd>
         </div>
@@ -99,93 +112,117 @@
 
   <!-- OIDC Configuration (only for OIDC apps) -->
   <% if @application.oidc? %>
-    <div class="bg-white shadow sm:rounded-lg">
+    <div class="bg-white dark:bg-gray-800 shadow sm:rounded-lg">
       <div class="px-4 py-5 sm:p-6">
         <div class="flex items-center justify-between mb-4">
-          <h3 class="text-base font-semibold leading-6 text-gray-900">OIDC Configuration</h3>
+          <h3 class="text-base font-semibold leading-6 text-gray-900 dark:text-gray-100">OIDC Configuration</h3>
           <%= button_to "Regenerate Credentials", regenerate_credentials_admin_application_path(@application), method: :post, data: { turbo_confirm: "This will invalidate the current credentials. Continue?" }, class: "text-sm text-red-600 hover:text-red-900" %>
         </div>
         <dl class="space-y-4">
           <div class="grid grid-cols-2 gap-4">
             <div>
-              <dt class="text-sm font-medium text-gray-500">Client Type</dt>
+              <dt class="text-sm font-medium text-gray-500 dark:text-gray-400">Client Type</dt>
-              <dd class="mt-1 text-sm text-gray-900">
+              <dd class="mt-1 text-sm text-gray-900 dark:text-gray-100">
                 <% if @application.public_client? %>
-                  <span class="inline-flex items-center rounded-full bg-blue-100 px-2 py-1 text-xs font-medium text-blue-700">Public</span>
+                  <span class="inline-flex items-center rounded-full bg-blue-100 dark:bg-blue-900/50 px-2 py-1 text-xs font-medium text-blue-700 dark:text-blue-300">Public</span>
                 <% else %>
-                  <span class="inline-flex items-center rounded-full bg-gray-100 px-2 py-1 text-xs font-medium text-gray-700">Confidential</span>
+                  <span class="inline-flex items-center rounded-full bg-gray-100 dark:bg-gray-700 px-2 py-1 text-xs font-medium text-gray-700 dark:text-gray-300">Confidential</span>
                 <% end %>
               </dd>
             </div>
             <div>
-              <dt class="text-sm font-medium text-gray-500">PKCE</dt>
+              <dt class="text-sm font-medium text-gray-500 dark:text-gray-400">PKCE</dt>
-              <dd class="mt-1 text-sm text-gray-900">
+              <dd class="mt-1 text-sm text-gray-900 dark:text-gray-100">
                 <% if @application.requires_pkce? %>
-                  <span class="inline-flex items-center rounded-full bg-green-100 px-2 py-1 text-xs font-medium text-green-700">Required</span>
+                  <span class="inline-flex items-center rounded-full bg-green-100 dark:bg-green-900/50 px-2 py-1 text-xs font-medium text-green-700 dark:text-green-300">Required</span>
                 <% else %>
-                  <span class="inline-flex items-center rounded-full bg-gray-100 px-2 py-1 text-xs font-medium text-gray-700">Optional</span>
+                  <span class="inline-flex items-center rounded-full bg-gray-100 dark:bg-gray-700 px-2 py-1 text-xs font-medium text-gray-700 dark:text-gray-300">Optional</span>
                 <% end %>
               </dd>
             </div>
           </div>
           <% unless flash[:client_id] %>
             <div>
-              <dt class="text-sm font-medium text-gray-500">Client ID</dt>
+              <dt class="text-sm font-medium text-gray-500 dark:text-gray-400">Client ID</dt>
-              <dd class="mt-1 text-sm text-gray-900">
+              <dd class="mt-1 text-sm text-gray-900 dark:text-gray-100">
-                <code class="block bg-gray-100 px-3 py-2 rounded font-mono text-xs break-all"><%= @application.client_id %></code>
+                <code class="block bg-gray-100 dark:bg-gray-700 dark:text-gray-200 px-3 py-2 rounded font-mono text-xs break-all"><%= @application.client_id %></code>
               </dd>
             </div>
             <% if @application.confidential_client? %>
               <div>
-                <dt class="text-sm font-medium text-gray-500">Client Secret</dt>
+                <dt class="text-sm font-medium text-gray-500 dark:text-gray-400">Client Secret</dt>
-                <dd class="mt-1 text-sm text-gray-900">
+                <dd class="mt-1 text-sm text-gray-900 dark:text-gray-100">
-                  <div class="bg-gray-100 px-3 py-2 rounded text-xs text-gray-500 italic">
+                  <div class="bg-gray-100 dark:bg-gray-700 px-3 py-2 rounded text-xs text-gray-500 dark:text-gray-400 italic">
                     🔒 Client secret is stored securely and cannot be displayed
                   </div>
-                  <p class="mt-2 text-xs text-gray-500">
+                  <p class="mt-2 text-xs text-gray-500 dark:text-gray-400">
                     To get a new client secret, use the "Regenerate Credentials" button above.
                   </p>
                 </dd>
               </div>
             <% else %>
               <div>
-                <dt class="text-sm font-medium text-gray-500">Client Secret</dt>
+                <dt class="text-sm font-medium text-gray-500 dark:text-gray-400">Client Secret</dt>
-                <dd class="mt-1 text-sm text-gray-900">
+                <dd class="mt-1 text-sm text-gray-900 dark:text-gray-100">
-                  <div class="bg-blue-50 px-3 py-2 rounded text-xs text-blue-600">
+                  <div class="bg-blue-50 dark:bg-blue-900/30 px-3 py-2 rounded text-xs text-blue-600 dark:text-blue-400">
                     Public clients do not use a client secret. PKCE is required for authorization.
                   </div>
                 </dd>
               </div>
             <% end %>
+            <div>
+              <details class="border border-gray-200 dark:border-gray-700 rounded-lg">
+                <summary class="cursor-pointer bg-gray-50 dark:bg-gray-700 px-4 py-3 hover:bg-gray-100 dark:hover:bg-gray-600 rounded-lg text-sm font-medium text-gray-700 dark:text-gray-300">
+                  Environment variables
+                </summary>
+                <div class="px-4 py-3" data-controller="clipboard">
+                  <% env_lines = oidc_env_lines(@application) %>
+                  <div class="flex items-center justify-between mb-2">
+                    <span class="text-xs text-gray-500 dark:text-gray-400">
+                      <%= @application.confidential_client? ? "Replace <your-client-secret> with your saved secret." : "Public client — no secret required." %>
+                    </span>
+                    <button type="button"
+                            data-action="clipboard#copy"
+                            class="text-xs font-medium text-gray-600 dark:text-gray-400 hover:text-gray-900 dark:hover:text-gray-100 underline">
+                      <span data-clipboard-target="label">Copy</span>
+                    </button>
+                  </div>
+                  <textarea data-clipboard-target="source"
+                            readonly
+                            rows="<%= env_lines.length %>"
+                            class="block w-full bg-gray-100 dark:bg-gray-700 px-3 py-2 rounded font-mono text-xs text-gray-900 dark:text-gray-100 resize-none focus:outline-none focus:ring-1 focus:ring-gray-500"><%= env_lines.join("\n") %></textarea>
+                </div>
+              </details>
+            </div>
           <% end %>
           <div>
-            <dt class="text-sm font-medium text-gray-500">Redirect URIs</dt>
+            <dt class="text-sm font-medium text-gray-500 dark:text-gray-400">Redirect URIs</dt>
-            <dd class="mt-1 text-sm text-gray-900">
+            <dd class="mt-1 text-sm text-gray-900 dark:text-gray-100">
               <% if @application.redirect_uris.present? %>
                 <% @application.parsed_redirect_uris.each do |uri| %>
-                  <code class="block bg-gray-100 px-3 py-2 rounded font-mono text-xs break-all mb-2"><%= uri %></code>
+                  <code class="block bg-gray-100 dark:bg-gray-700 dark:text-gray-200 px-3 py-2 rounded font-mono text-xs break-all mb-2"><%= uri %></code>
                 <% end %>
               <% else %>
-                <span class="text-gray-400">No redirect URIs configured</span>
+                <span class="text-gray-400 dark:text-gray-500">No redirect URIs configured</span>
               <% end %>
             </dd>
           </div>
           <div>
-            <dt class="text-sm font-medium text-gray-500">
+            <dt class="text-sm font-medium text-gray-500 dark:text-gray-400">
               Backchannel Logout URI
               <% if @application.supports_backchannel_logout? %>
-                <span class="ml-2 inline-flex items-center rounded-full bg-green-100 px-2 py-0.5 text-xs font-medium text-green-700">Enabled</span>
+                <span class="ml-2 inline-flex items-center rounded-full bg-green-100 dark:bg-green-900/50 px-2 py-0.5 text-xs font-medium text-green-700 dark:text-green-300">Enabled</span>
               <% end %>
             </dt>
-            <dd class="mt-1 text-sm text-gray-900">
+            <dd class="mt-1 text-sm text-gray-900 dark:text-gray-100">
               <% if @application.backchannel_logout_uri.present? %>
-                <code class="block bg-gray-100 px-3 py-2 rounded font-mono text-xs break-all"><%= @application.backchannel_logout_uri %></code>
+                <code class="block bg-gray-100 dark:bg-gray-700 dark:text-gray-200 px-3 py-2 rounded font-mono text-xs break-all"><%= @application.backchannel_logout_uri %></code>
-                <p class="mt-2 text-xs text-gray-500">
+                <p class="mt-2 text-xs text-gray-500 dark:text-gray-400">
                   When users log out, Clinch will send logout notifications to this endpoint for immediate session termination.
                 </p>
               <% else %>
-                <span class="text-gray-400 italic">Not configured</span>
+                <span class="text-gray-400 dark:text-gray-500 italic">Not configured</span>
-                <p class="mt-1 text-xs text-gray-500">
+                <p class="mt-1 text-xs text-gray-500 dark:text-gray-400">
                   Backchannel logout is optional. Configure it if the application supports OpenID Connect Backchannel Logout.
                 </p>
               <% end %>
@@ -198,23 +235,23 @@
 
   <!-- Forward Auth Configuration (only for Forward Auth apps) -->
   <% if @application.forward_auth? %>
-    <div class="bg-white shadow sm:rounded-lg">
+    <div class="bg-white dark:bg-gray-800 shadow sm:rounded-lg">
       <div class="px-4 py-5 sm:p-6">
-        <h3 class="text-base font-semibold leading-6 text-gray-900 mb-4">Forward Auth Configuration</h3>
+        <h3 class="text-base font-semibold leading-6 text-gray-900 dark:text-gray-100 mb-4">Forward Auth Configuration</h3>
         <dl class="space-y-4">
           <div>
-            <dt class="text-sm font-medium text-gray-500">Domain Pattern</dt>
+            <dt class="text-sm font-medium text-gray-500 dark:text-gray-400">Domain Pattern</dt>
-            <dd class="mt-1 text-sm text-gray-900">
+            <dd class="mt-1 text-sm text-gray-900 dark:text-gray-100">
-              <code class="block bg-gray-100 px-3 py-2 rounded font-mono text-xs"><%= @application.domain_pattern %></code>
+              <code class="block bg-gray-100 dark:bg-gray-700 dark:text-gray-200 px-3 py-2 rounded font-mono text-xs"><%= @application.domain_pattern %></code>
             </dd>
           </div>
           <div>
-            <dt class="text-sm font-medium text-gray-500">Headers Configuration</dt>
+            <dt class="text-sm font-medium text-gray-500 dark:text-gray-400">Headers Configuration</dt>
-            <dd class="mt-1 text-sm text-gray-900">
+            <dd class="mt-1 text-sm text-gray-900 dark:text-gray-100">
               <% if @application.headers_config.present? && @application.headers_config.any? %>
-                <code class="block bg-gray-100 px-3 py-2 rounded font-mono text-xs whitespace-pre-wrap"><%= JSON.pretty_generate(@application.headers_config) %></code>
+                <code class="block bg-gray-100 dark:bg-gray-700 dark:text-gray-200 px-3 py-2 rounded font-mono text-xs whitespace-pre-wrap"><%= JSON.pretty_generate(@application.headers_config) %></code>
               <% else %>
-                <div class="bg-gray-100 px-3 py-2 rounded text-xs text-gray-500">
+                <div class="bg-gray-100 dark:bg-gray-700 px-3 py-2 rounded text-xs text-gray-500 dark:text-gray-400">
                   Using default headers: X-Remote-User, X-Remote-Email, X-Remote-Name, X-Remote-Username, X-Remote-Groups, X-Remote-Admin
                 </div>
               <% end %>
@@ -226,29 +263,29 @@
   <% end %>
 
   <!-- Group Access Control -->
-  <div class="bg-white shadow sm:rounded-lg">
+  <div class="bg-white dark:bg-gray-800 shadow sm:rounded-lg">
     <div class="px-4 py-5 sm:p-6">
-      <h3 class="text-base font-semibold leading-6 text-gray-900 mb-4">Access Control</h3>
+      <h3 class="text-base font-semibold leading-6 text-gray-900 dark:text-gray-100 mb-4">Access Control</h3>
       <div>
-        <dt class="text-sm font-medium text-gray-500 mb-2">Allowed Groups</dt>
+        <dt class="text-sm font-medium text-gray-500 dark:text-gray-400 mb-2">Allowed Groups</dt>
-        <dd class="mt-1 text-sm text-gray-900">
+        <dd class="mt-1 text-sm text-gray-900 dark:text-gray-100">
           <% if @allowed_groups.empty? %>
-            <div class="rounded-md bg-blue-50 p-4">
+            <div class="rounded-md bg-amber-50 dark:bg-amber-900/30 p-4">
               <div class="flex">
                 <div class="ml-3">
-                  <p class="text-sm text-blue-700">
+                  <p class="text-sm text-amber-700 dark:text-amber-300">
-                    No groups assigned - all active users can access this application.
+                    No groups assigned — no one can access this application. Attach a group to grant access.
                   </p>
                 </div>
               </div>
             </div>
           <% else %>
-            <ul class="divide-y divide-gray-200 border border-gray-200 rounded-md">
+            <ul class="divide-y divide-gray-200 dark:divide-gray-700 border border-gray-200 dark:border-gray-700 rounded-md">
               <% @allowed_groups.each do |group| %>
                 <li class="px-4 py-3 flex items-center justify-between">
                   <div>
-                    <p class="text-sm font-medium text-gray-900"><%= group.name %></p>
+                    <p class="text-sm font-medium text-gray-900 dark:text-gray-100"><%= group.name %></p>
-                    <p class="text-xs text-gray-500"><%= pluralize(group.users.count, "member") %></p>
+                    <p class="text-xs text-gray-500 dark:text-gray-400"><%= pluralize(group.users.count, "member") %></p>
                   </div>
                 </li>
               <% end %>
@@ -258,4 +295,35 @@
       </div>
     </div>
   </div>
+
+  <!-- Users with access -->
+  <div class="bg-white dark:bg-gray-800 shadow sm:rounded-lg">
+    <div class="px-4 py-5 sm:p-6">
+      <h3 class="text-base font-semibold leading-6 text-gray-900 dark:text-gray-100 mb-4">
+        Users with access (<%= @users_with_access.count %>)
+      </h3>
+      <% if @users_with_access.any? %>
+        <ul class="divide-y divide-gray-200 dark:divide-gray-700 border border-gray-200 dark:border-gray-700 rounded-md">
+          <% @users_with_access.each do |user| %>
+            <% via = user.groups & @application.allowed_groups %>
+            <li class="px-4 py-3 flex items-center justify-between">
+              <div>
+                <p class="text-sm font-medium text-gray-900 dark:text-gray-100"><%= user.email_address %></p>
+                <div class="flex flex-wrap gap-1 mt-1">
+                  <% via.each do |g| %>
+                    <span class="inline-flex items-center rounded-full bg-gray-100 dark:bg-gray-700 px-2 py-0.5 text-xs font-medium text-gray-700 dark:text-gray-300">via <%= g.name %></span>
+                  <% end %>
+                </div>
+              </div>
+              <%= link_to "View", admin_user_path(user), class: "text-blue-600 hover:text-blue-900 text-sm" %>
+            </li>
+          <% end %>
+        </ul>
+      <% else %>
+        <div class="rounded-md bg-gray-50 dark:bg-gray-700 p-4">
+          <p class="text-sm text-gray-500 dark:text-gray-400">No users currently have access. Attach a group to grant access.</p>
+        </div>
+      <% end %>
+    </div>
+  </div>
 </div>

app/views/admin/dashboard/index.html.erb

@@ -1,28 +1,28 @@
 <div class="mb-8">
-  <h1 class="text-3xl font-bold text-gray-900">Admin Dashboard</h1>
+  <h1 class="text-3xl font-bold text-gray-900 dark:text-gray-100">Admin Dashboard</h1>
-  <p class="mt-2 text-gray-600">System overview and quick actions</p>
+  <p class="mt-2 text-gray-600 dark:text-gray-400">System overview and quick actions</p>
 </div>
 
 <div class="grid grid-cols-1 gap-6 sm:grid-cols-2 lg:grid-cols-3">
   <!-- Users Card -->
-  <div class="bg-white overflow-hidden shadow rounded-lg">
+  <div class="bg-white dark:bg-gray-800 overflow-hidden shadow rounded-lg">
     <div class="p-5">
       <div class="flex items-center">
         <div class="flex-shrink-0">
-          <svg class="h-6 w-6 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+          <svg class="h-6 w-6 text-gray-400 dark:text-gray-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
             <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 4.354a4 4 0 110 5.292M15 21H3v-1a6 6 0 0112 0v1zm0 0h6v-1a6 6 0 00-9-5.197M13 7a4 4 0 11-8 0 4 4 0 018 0z"></path>
           </svg>
         </div>
         <div class="ml-5 w-0 flex-1">
           <dl>
-            <dt class="text-sm font-medium text-gray-500 truncate">
+            <dt class="text-sm font-medium text-gray-500 dark:text-gray-400 truncate">
               Total Users
             </dt>
             <dd class="flex items-baseline">
-              <div class="text-2xl font-semibold text-gray-900">
+              <div class="text-2xl font-semibold text-gray-900 dark:text-gray-100">
                 <%= @user_count %>
               </div>
-              <div class="ml-2 text-sm text-gray-600">
+              <div class="ml-2 text-sm text-gray-600 dark:text-gray-400">
                 (<%= @active_user_count %> active)
               </div>
             </dd>
@@ -30,30 +30,30 @@
         </div>
       </div>
     </div>
-    <div class="bg-gray-50 px-5 py-3">
+    <div class="bg-gray-50 dark:bg-gray-700 px-5 py-3">
       <%= link_to "Manage users", admin_users_path, class: "text-sm font-medium text-blue-600 hover:text-blue-500" %>
     </div>
   </div>
 
   <!-- Applications Card -->
-  <div class="bg-white overflow-hidden shadow rounded-lg">
+  <div class="bg-white dark:bg-gray-800 overflow-hidden shadow rounded-lg">
     <div class="p-5">
       <div class="flex items-center">
         <div class="flex-shrink-0">
-          <svg class="h-6 w-6 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+          <svg class="h-6 w-6 text-gray-400 dark:text-gray-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
             <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 5a1 1 0 011-1h4a1 1 0 010 2H6v10a1 1 0 001 1h10a1 1 0 001-1v-3a1 1 0 112 0v3a3 3 0 01-3 3H7a3 3 0 01-3-3V6a1 1 0 011-1zm9 1a1 1 0 10-2 0v3a1 1 0 102 0V6zm-4 8a1 1 0 100 2h.01a1 1 0 100-2H9zm4 0a1 1 0 100 2h.01a1 1 0 100-2H13z"></path>
           </svg>
         </div>
         <div class="ml-5 w-0 flex-1">
           <dl>
-            <dt class="text-sm font-medium text-gray-500 truncate">
+            <dt class="text-sm font-medium text-gray-500 dark:text-gray-400 truncate">
               Applications
             </dt>
             <dd class="flex items-baseline">
-              <div class="text-2xl font-semibold text-gray-900">
+              <div class="text-2xl font-semibold text-gray-900 dark:text-gray-100">
                 <%= @application_count %>
               </div>
-              <div class="ml-2 text-sm text-gray-600">
+              <div class="ml-2 text-sm text-gray-600 dark:text-gray-400">
                 (<%= @active_application_count %> active)
               </div>
             </dd>
@@ -61,33 +61,33 @@
         </div>
       </div>
     </div>
-    <div class="bg-gray-50 px-5 py-3">
+    <div class="bg-gray-50 dark:bg-gray-700 px-5 py-3">
       <%= link_to "Manage applications", admin_applications_path, class: "text-sm font-medium text-blue-600 hover:text-blue-500" %>
     </div>
   </div>
 
   <!-- Groups Card -->
-  <div class="bg-white overflow-hidden shadow rounded-lg">
+  <div class="bg-white dark:bg-gray-800 overflow-hidden shadow rounded-lg">
     <div class="p-5">
       <div class="flex items-center">
         <div class="flex-shrink-0">
-          <svg class="h-6 w-6 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+          <svg class="h-6 w-6 text-gray-400 dark:text-gray-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
             <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M17 20h5v-2a3 3 0 00-5.356-1.857M17 20H7m10 0v-2c0-.656-.126-1.283-.356-1.857M7 20H2v-2a3 3 0 015.356-1.857M7 20v-2c0-.656.126-1.283.356-1.857m0 0a5.002 5.002 0 019.288 0M15 7a3 3 0 11-6 0 3 3 0 016 0zm6 3a2 2 0 11-4 0 2 2 0 014 0zM7 10a2 2 0 11-4 0 2 2 0 014 0z"></path>
           </svg>
         </div>
         <div class="ml-5 w-0 flex-1">
           <dl>
-            <dt class="text-sm font-medium text-gray-500 truncate">
+            <dt class="text-sm font-medium text-gray-500 dark:text-gray-400 truncate">
               Groups
             </dt>
-            <dd class="text-2xl font-semibold text-gray-900">
+            <dd class="text-2xl font-semibold text-gray-900 dark:text-gray-100">
               <%= @group_count %>
             </dd>
           </dl>
         </div>
       </div>
     </div>
-    <div class="bg-gray-50 px-5 py-3">
+    <div class="bg-gray-50 dark:bg-gray-700 px-5 py-3">
       <%= link_to "Manage groups", admin_groups_path, class: "text-sm font-medium text-blue-600 hover:text-blue-500" %>
     </div>
   </div>
@@ -95,26 +95,26 @@
 
 <!-- Recent Users -->
 <div class="mt-8">
-  <h2 class="text-xl font-semibold text-gray-900 mb-4">Recent Users</h2>
+  <h2 class="text-xl font-semibold text-gray-900 dark:text-gray-100 mb-4">Recent Users</h2>
-  <div class="bg-white shadow overflow-hidden sm:rounded-lg">
+  <div class="bg-white dark:bg-gray-800 shadow overflow-hidden sm:rounded-lg">
-    <ul class="divide-y divide-gray-200">
+    <ul class="divide-y divide-gray-200 dark:divide-gray-700">
       <% @recent_users.each do |user| %>
         <li class="px-6 py-4">
           <div class="flex items-center justify-between">
             <div>
-              <p class="text-sm font-medium text-gray-900"><%= user.email_address %></p>
+              <p class="text-sm font-medium text-gray-900 dark:text-gray-100"><%= user.email_address %></p>
-              <p class="text-xs text-gray-500">
+              <p class="text-xs text-gray-500 dark:text-gray-400">
                 Created <%= time_ago_in_words(user.created_at) %> ago
               </p>
             </div>
             <div class="flex gap-2">
               <% if user.admin? %>
-                <span class="inline-flex items-center rounded-full bg-blue-100 px-2 py-1 text-xs font-medium text-blue-700">Admin</span>
+                <span class="inline-flex items-center rounded-full bg-blue-100 dark:bg-blue-900/50 px-2 py-1 text-xs font-medium text-blue-700 dark:text-blue-300">Admin</span>
               <% end %>
               <% if user.totp_enabled? %>
-                <span class="inline-flex items-center rounded-full bg-green-100 px-2 py-1 text-xs font-medium text-green-700">2FA</span>
+                <span class="inline-flex items-center rounded-full bg-green-100 dark:bg-green-900/50 px-2 py-1 text-xs font-medium text-green-700 dark:text-green-300">2FA</span>
               <% end %>
-              <span class="inline-flex items-center rounded-full bg-gray-100 px-2 py-1 text-xs font-medium text-gray-700"><%= user.status.titleize %></span>
+              <span class="inline-flex items-center rounded-full bg-gray-100 dark:bg-gray-700 px-2 py-1 text-xs font-medium text-gray-700 dark:text-gray-300"><%= user.status.titleize %></span>
             </div>
           </div>
         </li>
@@ -125,21 +125,21 @@
 
 <!-- Quick Actions -->
 <div class="mt-8">
-  <h2 class="text-xl font-semibold text-gray-900 mb-4">Quick Actions</h2>
+  <h2 class="text-xl font-semibold text-gray-900 dark:text-gray-100 mb-4">Quick Actions</h2>
   <div class="grid grid-cols-1 gap-4 sm:grid-cols-3">
-    <%= link_to new_admin_user_path, class: "block p-6 bg-white rounded-lg border border-gray-200 shadow-sm hover:bg-gray-50 hover:shadow-md transition" do %>
+    <%= link_to new_admin_user_path, class: "block p-6 bg-white dark:bg-gray-800 rounded-lg border border-gray-200 dark:border-gray-700 shadow-sm hover:bg-gray-50 dark:hover:bg-gray-700 hover:shadow-md transition" do %>
-      <h3 class="text-lg font-semibold text-gray-900 mb-2">Create User</h3>
+      <h3 class="text-lg font-semibold text-gray-900 dark:text-gray-100 mb-2">Create User</h3>
-      <p class="text-sm text-gray-600">Add a new user to the system</p>
+      <p class="text-sm text-gray-600 dark:text-gray-400">Add a new user to the system</p>
     <% end %>
 
-    <%= link_to new_admin_application_path, class: "block p-6 bg-white rounded-lg border border-gray-200 shadow-sm hover:bg-gray-50 hover:shadow-md transition" do %>
+    <%= link_to new_admin_application_path, class: "block p-6 bg-white dark:bg-gray-800 rounded-lg border border-gray-200 dark:border-gray-700 shadow-sm hover:bg-gray-50 dark:hover:bg-gray-700 hover:shadow-md transition" do %>
-      <h3 class="text-lg font-semibold text-gray-900 mb-2">Register Application</h3>
+      <h3 class="text-lg font-semibold text-gray-900 dark:text-gray-100 mb-2">Register Application</h3>
-      <p class="text-sm text-gray-600">Add a new OIDC or ForwardAuth app</p>
+      <p class="text-sm text-gray-600 dark:text-gray-400">Add a new OIDC or ForwardAuth app</p>
     <% end %>
 
-    <%= link_to new_admin_group_path, class: "block p-6 bg-white rounded-lg border border-gray-200 shadow-sm hover:bg-gray-50 hover:shadow-md transition" do %>
+    <%= link_to new_admin_group_path, class: "block p-6 bg-white dark:bg-gray-800 rounded-lg border border-gray-200 dark:border-gray-700 shadow-sm hover:bg-gray-50 dark:hover:bg-gray-700 hover:shadow-md transition" do %>
-      <h3 class="text-lg font-semibold text-gray-900 mb-2">Create Group</h3>
+      <h3 class="text-lg font-semibold text-gray-900 dark:text-gray-100 mb-2">Create Group</h3>
-      <p class="text-sm text-gray-600">Organize users into a new group</p>
+      <p class="text-sm text-gray-600 dark:text-gray-400">Organize users into a new group</p>
     <% end %>
   </div>
 </div>

app/views/admin/groups/_form.html.erb

@@ -2,51 +2,90 @@
   <%= render "shared/form_errors", form: form %>
 
   <div>
-    <%= form.label :name, class: "block text-sm font-medium text-gray-700" %>
+    <%= form.label :name, class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
-    <%= form.text_field :name, required: true, class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm", placeholder: "developers" %>
+    <%= form.text_field :name, required: true, class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm", placeholder: "developers" %>
-    <p class="mt-1 text-sm text-gray-500">Group names are automatically normalized to lowercase.</p>
+    <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">Group names are automatically normalized to lowercase.</p>
   </div>
 
   <div>
-    <%= form.label :description, class: "block text-sm font-medium text-gray-700" %>
+    <%= form.label :description, class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
-    <%= form.text_area :description, rows: 3, class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm", placeholder: "Optional description of this group" %>
+    <%= form.text_area :description, rows: 3, class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm", placeholder: "Optional description of this group" %>
   </div>
 
   <div>
-    <%= form.label :user_ids, "Group Members", class: "block text-sm font-medium text-gray-700" %>
+    <div class="flex items-center">
-    <div class="mt-2 space-y-2 max-h-64 overflow-y-auto border border-gray-200 rounded-md p-3">
+      <%= form.check_box :auto_assign, class: "h-4 w-4 rounded border-gray-300 dark:border-gray-600 text-blue-600 focus:ring-blue-500" %>
+      <%= form.label :auto_assign, "Auto Assign", class: "ml-2 text-sm text-gray-900 dark:text-gray-100" %>
+    </div>
+    <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">New users will be automatically added to this group when invited. You can mark multiple groups as auto-assigned.</p>
+  </div>
+
+  <div>
+    <div class="flex items-center">
+      <%= form.check_box :admin, class: "h-4 w-4 rounded border-gray-300 dark:border-gray-600 text-blue-600 focus:ring-blue-500" %>
+      <%= form.label :admin, "Administrators", class: "ml-2 text-sm text-gray-900 dark:text-gray-100" %>
+    </div>
+    <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">Members of this group can access the admin panel. Does not grant automatic access to applications.</p>
+  </div>
+
+  <div>
+    <%= form.label :user_ids, "Group Members", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
+    <div class="mt-2 space-y-2 max-h-64 overflow-y-auto border border-gray-200 dark:border-gray-700 rounded-md p-3">
       <% if @available_users.any? %>
         <% @available_users.each do |user| %>
           <div class="flex items-center">
-            <%= check_box_tag "group[user_ids][]", user.id, group.users.include?(user), class: "h-4 w-4 rounded border-gray-300 text-blue-600 focus:ring-blue-500" %>
+            <%= check_box_tag "group[user_ids][]", user.id, group.users.include?(user), class: "h-4 w-4 rounded border-gray-300 dark:border-gray-600 text-blue-600 focus:ring-blue-500" %>
-            <%= label_tag "group_user_ids_#{user.id}", user.email_address, class: "ml-2 text-sm text-gray-900" %>
+            <%= label_tag "group_user_ids_#{user.id}", user.email_address, class: "ml-2 text-sm text-gray-900 dark:text-gray-100" %>
             <% if user.admin? %>
-              <span class="ml-2 inline-flex items-center rounded-full bg-blue-100 px-2 py-0.5 text-xs font-medium text-blue-700">Admin</span>
+              <span class="ml-2 inline-flex items-center rounded-full bg-blue-100 dark:bg-blue-900/50 px-2 py-0.5 text-xs font-medium text-blue-700 dark:text-blue-300">Admin</span>
             <% end %>
           </div>
         <% end %>
       <% else %>
-        <p class="text-sm text-gray-500">No users available.</p>
+        <p class="text-sm text-gray-500 dark:text-gray-400">No users available.</p>
       <% end %>
     </div>
-    <p class="mt-1 text-sm text-gray-500">Select which users should be members of this group.</p>
+    <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">Select which users should be members of this group.</p>
+  </div>
+
+  <div>
+    <%= form.label :application_ids, "Assigned Applications", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
+    <div class="mt-2 space-y-2 max-h-48 overflow-y-auto border border-gray-200 dark:border-gray-700 rounded-md p-3">
+      <% if @available_applications.any? %>
+        <% @available_applications.each do |application| %>
+          <div class="flex items-center">
+            <%= check_box_tag "group[application_ids][]", application.id, group.applications.include?(application), class: "h-4 w-4 rounded border-gray-300 dark:border-gray-600 text-blue-600 focus:ring-blue-500" %>
+            <%= label_tag "group_application_ids_#{application.id}", application.name, class: "ml-2 text-sm text-gray-900 dark:text-gray-100" %>
+            <% case application.app_type %>
+            <% when "oidc" %>
+              <span class="ml-2 inline-flex items-center rounded-full bg-purple-100 dark:bg-purple-900/50 px-2 py-0.5 text-xs font-medium text-purple-700 dark:text-purple-300">OIDC</span>
+            <% when "trusted_header" %>
+              <span class="ml-2 inline-flex items-center rounded-full bg-indigo-100 dark:bg-indigo-900/50 px-2 py-0.5 text-xs font-medium text-indigo-700 dark:text-indigo-300">ForwardAuth</span>
+            <% end %>
+          </div>
+        <% end %>
+      <% else %>
+        <p class="text-sm text-gray-500 dark:text-gray-400">No applications available.</p>
+      <% end %>
+    </div>
+    <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">Select which applications this group grants access to.</p>
   </div>
 
   <div data-controller="json-validator" data-json-validator-valid-class="border-green-500 focus:border-green-500 focus:ring-green-500" data-json-validator-invalid-class="border-red-500 focus:border-red-500 focus:ring-red-500" data-json-validator-valid-status-class="text-green-600" data-json-validator-invalid-status-class="text-red-600">
-    <%= form.label :custom_claims, "Custom Claims (JSON)", class: "block text-sm font-medium text-gray-700" %>
+    <%= form.label :custom_claims, "Custom Claims (JSON)", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
     <%= form.text_area :custom_claims, value: (group.custom_claims.present? ? JSON.pretty_generate(group.custom_claims) : ""), rows: 8,
-        class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm font-mono",
+        class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm font-mono",
         placeholder: '{"roles": ["admin", "editor"]}',
         data: {
           action: "input->json-validator#validate blur->json-validator#format",
           json_validator_target: "textarea"
         } %>
-    <div class="mt-2 text-sm text-gray-600 space-y-1">
+    <div class="mt-2 text-sm text-gray-600 dark:text-gray-400 space-y-1">
       <div class="flex items-center justify-between">
         <p>Optional: Custom claims to add to OIDC tokens for all members. These will be merged with user-level claims.</p>
         <div class="flex items-center gap-2">
-          <button type="button" data-action="json-validator#format" class="text-xs bg-gray-100 hover:bg-gray-200 px-2 py-1 rounded">Format JSON</button>
+          <button type="button" data-action="json-validator#format" class="text-xs bg-gray-100 dark:bg-gray-700 dark:text-gray-200 hover:bg-gray-200 dark:hover:bg-gray-600 px-2 py-1 rounded">Format JSON</button>
-          <button type="button" data-action="json-validator#insertSample" data-json-sample='{"roles": ["admin", "editor"], "permissions": ["read", "write"], "team": "backend"}' class="text-xs bg-blue-100 hover:bg-blue-200 text-blue-700 px-2 py-1 rounded">Insert Example</button>
+          <button type="button" data-action="json-validator#insertSample" data-json-sample='{"roles": ["admin", "editor"], "permissions": ["read", "write"], "team": "backend"}' class="text-xs bg-blue-100 dark:bg-blue-900/50 hover:bg-blue-200 dark:hover:bg-blue-900 text-blue-700 dark:text-blue-300 px-2 py-1 rounded">Insert Example</button>
         </div>
       </div>
       <div data-json-validator-target="status" class="text-xs font-medium"></div>
@@ -55,6 +94,6 @@
 
   <div class="flex gap-3">
     <%= form.submit group.persisted? ? "Update Group" : "Create Group", class: "rounded-md bg-blue-600 px-3 py-2 text-sm font-semibold text-white shadow-sm hover:bg-blue-500 focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-blue-600" %>
-    <%= link_to "Cancel", admin_groups_path, class: "rounded-md bg-white px-3 py-2 text-sm font-semibold text-gray-900 shadow-sm ring-1 ring-inset ring-gray-300 hover:bg-gray-50" %>
+    <%= link_to "Cancel", admin_groups_path, class: "rounded-md bg-white dark:bg-gray-700 px-3 py-2 text-sm font-semibold text-gray-900 dark:text-gray-200 shadow-sm ring-1 ring-inset ring-gray-300 dark:ring-gray-600 hover:bg-gray-50 dark:hover:bg-gray-600" %>
   </div>
 <% end %>

app/views/admin/groups/edit.html.erb

@@ -1,5 +1,5 @@
 <div class="max-w-2xl">
-  <h1 class="text-2xl font-semibold text-gray-900 mb-6">Edit Group</h1>
+  <h1 class="text-2xl font-semibold text-gray-900 dark:text-gray-100 mb-6">Edit Group</h1>
-  <p class="text-sm text-gray-600 mb-6">Editing: <%= @group.name %></p>
+  <p class="text-sm text-gray-600 dark:text-gray-400 mb-6">Editing: <%= @group.name %></p>
   <%= render "form", group: @group %>
 </div>

app/views/admin/groups/index.html.erb

@@ -1,7 +1,7 @@
 <div class="sm:flex sm:items-center">
   <div class="sm:flex-auto">
-    <h1 class="text-2xl font-semibold text-gray-900">Groups</h1>
+    <h1 class="text-2xl font-semibold text-gray-900 dark:text-gray-100">Groups</h1>
-    <p class="mt-2 text-sm text-gray-700">Organize users into groups for application access control.</p>
+    <p class="mt-2 text-sm text-gray-700 dark:text-gray-300">Organize users into groups for application access control.</p>
   </div>
   <div class="mt-4 sm:mt-0 sm:ml-16 sm:flex-none">
     <%= link_to "New Group", new_admin_group_path, class: "block rounded-md bg-blue-600 px-3 py-2 text-center text-sm font-semibold text-white shadow-sm hover:bg-blue-500 focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-blue-600" %>
@@ -11,31 +11,31 @@
 <div class="mt-8 flow-root">
   <div class="-mx-4 -my-2 overflow-x-auto sm:-mx-6 lg:-mx-8">
     <div class="inline-block min-w-full py-2 align-middle sm:px-6 lg:px-8">
-      <table class="min-w-full divide-y divide-gray-300">
+      <table class="min-w-full divide-y divide-gray-300 dark:divide-gray-600">
         <thead>
           <tr>
-            <th scope="col" class="py-3.5 pl-4 pr-3 text-left text-sm font-semibold text-gray-900 sm:pl-0">Name</th>
+            <th scope="col" class="py-3.5 pl-4 pr-3 text-left text-sm font-semibold text-gray-900 dark:text-gray-100 sm:pl-0">Name</th>
-            <th scope="col" class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900">Description</th>
+            <th scope="col" class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900 dark:text-gray-100">Description</th>
-            <th scope="col" class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900">Members</th>
+            <th scope="col" class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900 dark:text-gray-100">Members</th>
-            <th scope="col" class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900">Applications</th>
+            <th scope="col" class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900 dark:text-gray-100">Applications</th>
             <th scope="col" class="relative py-3.5 pl-3 pr-4 sm:pr-0">
               <span class="sr-only">Actions</span>
             </th>
           </tr>
         </thead>
-        <tbody class="divide-y divide-gray-200">
+        <tbody class="divide-y divide-gray-200 dark:divide-gray-700">
           <% @groups.each do |group| %>
             <tr>
-              <td class="whitespace-nowrap py-4 pl-4 pr-3 text-sm font-medium text-gray-900 sm:pl-0">
+              <td class="whitespace-nowrap py-4 pl-4 pr-3 text-sm font-medium text-gray-900 dark:text-gray-100 sm:pl-0">
                 <%= link_to group.name, admin_group_path(group), class: "text-blue-600 hover:text-blue-900" %>
               </td>
-              <td class="px-3 py-4 text-sm text-gray-500">
+              <td class="px-3 py-4 text-sm text-gray-500 dark:text-gray-400">
-                <%= truncate(group.description, length: 80) || content_tag(:span, "No description", class: "text-gray-400") %>
+                <%= truncate(group.description, length: 80) || content_tag(:span, "No description", class: "text-gray-400 dark:text-gray-500") %>
               </td>
-              <td class="whitespace-nowrap px-3 py-4 text-sm text-gray-500">
+              <td class="whitespace-nowrap px-3 py-4 text-sm text-gray-500 dark:text-gray-400">
                 <%= pluralize(group.users.count, "member") %>
               </td>
-              <td class="whitespace-nowrap px-3 py-4 text-sm text-gray-500">
+              <td class="whitespace-nowrap px-3 py-4 text-sm text-gray-500 dark:text-gray-400">
                 <%= pluralize(group.applications.count, "app") %>
               </td>
               <td class="relative whitespace-nowrap py-4 pl-3 pr-4 text-right text-sm font-medium sm:pr-0">

app/views/admin/groups/new.html.erb

@@ -1,4 +1,4 @@
 <div class="max-w-2xl">
-  <h1 class="text-2xl font-semibold text-gray-900 mb-6">New Group</h1>
+  <h1 class="text-2xl font-semibold text-gray-900 dark:text-gray-100 mb-6">New Group</h1>
   <%= render "form", group: @group %>
 </div>

app/views/admin/groups/show.html.erb

@@ -1,13 +1,21 @@
 <div class="mb-6">
   <div class="sm:flex sm:items-center sm:justify-between">
     <div>
-      <h1 class="text-2xl font-semibold text-gray-900"><%= @group.name %></h1>
+      <div class="flex items-center gap-2">
+        <h1 class="text-2xl font-semibold text-gray-900 dark:text-gray-100"><%= @group.name %></h1>
+        <% if @group.auto_assign? %>
+          <span class="inline-flex items-center rounded-full bg-green-100 dark:bg-green-900/50 px-2 py-0.5 text-xs font-medium text-green-700 dark:text-green-300">Auto Assign</span>
+        <% end %>
+        <% if @group.admin? %>
+          <span class="inline-flex items-center rounded-full bg-blue-100 dark:bg-blue-900/50 px-2 py-0.5 text-xs font-medium text-blue-700 dark:text-blue-300">Administrators</span>
+        <% end %>
+      </div>
       <% if @group.description.present? %>
-        <p class="mt-1 text-sm text-gray-500"><%= @group.description %></p>
+        <p class="mt-1 text-sm text-gray-500 dark:text-gray-400"><%= @group.description %></p>
       <% end %>
     </div>
     <div class="mt-4 sm:mt-0 flex gap-3">
-      <%= link_to "Edit", edit_admin_group_path(@group), class: "rounded-md bg-white px-3 py-2 text-sm font-semibold text-gray-900 shadow-sm ring-1 ring-inset ring-gray-300 hover:bg-gray-50" %>
+      <%= link_to "Edit", edit_admin_group_path(@group), class: "rounded-md bg-white dark:bg-gray-700 px-3 py-2 text-sm font-semibold text-gray-900 dark:text-gray-200 shadow-sm ring-1 ring-inset ring-gray-300 dark:ring-gray-600 hover:bg-gray-50 dark:hover:bg-gray-600" %>
       <%= button_to "Delete", admin_group_path(@group), method: :delete, data: { turbo_confirm: "Are you sure?" }, class: "rounded-md bg-red-600 px-3 py-2 text-sm font-semibold text-white shadow-sm hover:bg-red-500" %>
     </div>
   </div>
@@ -15,25 +23,25 @@
 
 <div class="space-y-6">
   <!-- Members -->
-  <div class="bg-white shadow sm:rounded-lg">
+  <div class="bg-white dark:bg-gray-800 shadow sm:rounded-lg">
     <div class="px-4 py-5 sm:p-6">
-      <h3 class="text-base font-semibold leading-6 text-gray-900 mb-4">
+      <h3 class="text-base font-semibold leading-6 text-gray-900 dark:text-gray-100 mb-4">
         Members (<%= @members.count %>)
       </h3>
       <% if @members.any? %>
-        <ul class="divide-y divide-gray-200 border border-gray-200 rounded-md">
+        <ul class="divide-y divide-gray-200 dark:divide-gray-700 border border-gray-200 dark:border-gray-700 rounded-md">
           <% @members.each do |user| %>
             <li class="px-4 py-3 flex items-center justify-between">
               <div>
-                <p class="text-sm font-medium text-gray-900"><%= user.email_address %></p>
+                <p class="text-sm font-medium text-gray-900 dark:text-gray-100"><%= user.email_address %></p>
                 <div class="flex gap-2 mt-1">
                   <% if user.admin? %>
-                    <span class="inline-flex items-center rounded-full bg-blue-100 px-2 py-0.5 text-xs font-medium text-blue-700">Admin</span>
+                    <span class="inline-flex items-center rounded-full bg-blue-100 dark:bg-blue-900/50 px-2 py-0.5 text-xs font-medium text-blue-700 dark:text-blue-300">Admin</span>
                   <% end %>
                   <% if user.totp_enabled? %>
-                    <span class="inline-flex items-center rounded-full bg-green-100 px-2 py-0.5 text-xs font-medium text-green-700">2FA</span>
+                    <span class="inline-flex items-center rounded-full bg-green-100 dark:bg-green-900/50 px-2 py-0.5 text-xs font-medium text-green-700 dark:text-green-300">2FA</span>
                   <% end %>
-                  <span class="inline-flex items-center rounded-full bg-gray-100 px-2 py-0.5 text-xs font-medium text-gray-700"><%= user.status.titleize %></span>
+                  <span class="inline-flex items-center rounded-full bg-gray-100 dark:bg-gray-700 px-2 py-0.5 text-xs font-medium text-gray-700 dark:text-gray-300"><%= user.status.titleize %></span>
                 </div>
               </div>
               <%= link_to "View", admin_user_path(user), class: "text-blue-600 hover:text-blue-900 text-sm" %>
@@ -41,36 +49,36 @@
           <% end %>
         </ul>
       <% else %>
-        <div class="rounded-md bg-gray-50 p-4">
+        <div class="rounded-md bg-gray-50 dark:bg-gray-700 p-4">
-          <p class="text-sm text-gray-500">No members in this group yet.</p>
+          <p class="text-sm text-gray-500 dark:text-gray-400">No members in this group yet.</p>
         </div>
       <% end %>
     </div>
   </div>
 
   <!-- Applications -->
-  <div class="bg-white shadow sm:rounded-lg">
+  <div class="bg-white dark:bg-gray-800 shadow sm:rounded-lg">
     <div class="px-4 py-5 sm:p-6">
-      <h3 class="text-base font-semibold leading-6 text-gray-900 mb-4">
+      <h3 class="text-base font-semibold leading-6 text-gray-900 dark:text-gray-100 mb-4">
         Assigned Applications (<%= @applications.count %>)
       </h3>
       <% if @applications.any? %>
-        <ul class="divide-y divide-gray-200 border border-gray-200 rounded-md">
+        <ul class="divide-y divide-gray-200 dark:divide-gray-700 border border-gray-200 dark:border-gray-700 rounded-md">
           <% @applications.each do |app| %>
             <li class="px-4 py-3 flex items-center justify-between">
               <div>
-                <p class="text-sm font-medium text-gray-900"><%= app.name %></p>
+                <p class="text-sm font-medium text-gray-900 dark:text-gray-100"><%= app.name %></p>
                 <div class="flex gap-2 mt-1">
                   <% case app.app_type %>
                   <% when "oidc" %>
-                    <span class="inline-flex items-center rounded-full bg-purple-100 px-2 py-0.5 text-xs font-medium text-purple-700">OIDC</span>
+                    <span class="inline-flex items-center rounded-full bg-purple-100 dark:bg-purple-900/50 px-2 py-0.5 text-xs font-medium text-purple-700 dark:text-purple-300">OIDC</span>
                   <% when "trusted_header" %>
-                    <span class="inline-flex items-center rounded-full bg-indigo-100 px-2 py-0.5 text-xs font-medium text-indigo-700">ForwardAuth</span>
+                    <span class="inline-flex items-center rounded-full bg-indigo-100 dark:bg-indigo-900/50 px-2 py-0.5 text-xs font-medium text-indigo-700 dark:text-indigo-300">ForwardAuth</span>
                   <% end %>
                   <% if app.active? %>
-                    <span class="inline-flex items-center rounded-full bg-green-100 px-2 py-0.5 text-xs font-medium text-green-700">Active</span>
+                    <span class="inline-flex items-center rounded-full bg-green-100 dark:bg-green-900/50 px-2 py-0.5 text-xs font-medium text-green-700 dark:text-green-300">Active</span>
                   <% else %>
-                    <span class="inline-flex items-center rounded-full bg-gray-100 px-2 py-0.5 text-xs font-medium text-gray-700">Inactive</span>
+                    <span class="inline-flex items-center rounded-full bg-gray-100 dark:bg-gray-700 px-2 py-0.5 text-xs font-medium text-gray-700 dark:text-gray-300">Inactive</span>
                   <% end %>
                 </div>
               </div>
@@ -79,8 +87,8 @@
           <% end %>
         </ul>
       <% else %>
-        <div class="rounded-md bg-gray-50 p-4">
+        <div class="rounded-md bg-gray-50 dark:bg-gray-700 p-4">
-          <p class="text-sm text-gray-500">This group is not assigned to any applications.</p>
+          <p class="text-sm text-gray-500 dark:text-gray-400">This group is not assigned to any applications.</p>
         </div>
       <% end %>
     </div>

app/views/admin/users/_application_claims.html.erb

@@ -3,29 +3,29 @@
 
 <!-- OIDC Apps: Custom Claims -->
 <% if oidc_apps.any? %>
-  <div class="mt-12 border-t pt-8">
+  <div class="mt-12 border-t dark:border-gray-700 pt-8">
-    <h2 class="text-xl font-semibold text-gray-900 mb-4">OIDC App-Specific Claims</h2>
+    <h2 class="text-xl font-semibold text-gray-900 dark:text-gray-100 mb-4">OIDC App-Specific Claims</h2>
-    <p class="text-sm text-gray-600 mb-6">
+    <p class="text-sm text-gray-600 dark:text-gray-400 mb-6">
       Configure custom claims that apply only to specific OIDC applications. These override both group and user global claims and are included in ID tokens.
     </p>
 
     <div class="space-y-6">
       <% oidc_apps.each do |app| %>
         <% app_claim = user.application_user_claims.find_by(application: app) %>
-        <details class="border rounded-lg" <%= "open" if app_claim&.custom_claims&.any? %>>
+        <details class="border dark:border-gray-700 rounded-lg" <%= "open" if app_claim&.custom_claims&.any? %>>
-          <summary class="cursor-pointer bg-gray-50 px-4 py-3 hover:bg-gray-100 rounded-t-lg flex items-center justify-between">
+          <summary class="cursor-pointer bg-gray-50 dark:bg-gray-800 px-4 py-3 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-t-lg flex items-center justify-between">
             <div class="flex items-center gap-3">
-              <span class="font-medium text-gray-900"><%= app.name %></span>
+              <span class="font-medium text-gray-900 dark:text-gray-100"><%= app.name %></span>
-              <span class="text-xs px-2 py-1 rounded-full bg-blue-100 text-blue-700">
+              <span class="text-xs px-2 py-1 rounded-full bg-blue-100 dark:bg-blue-900/50 text-blue-700 dark:text-blue-300">
                 OIDC
               </span>
               <% if app_claim&.custom_claims&.any? %>
-                <span class="text-xs px-2 py-1 rounded-full bg-amber-100 text-amber-700">
+                <span class="text-xs px-2 py-1 rounded-full bg-amber-100 dark:bg-amber-900/50 text-amber-700 dark:text-amber-300">
                   <%= app_claim.custom_claims.keys.count %> claim(s)
                 </span>
               <% end %>
             </div>
-            <svg class="h-5 w-5 text-gray-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <svg class="h-5 w-5 text-gray-500 dark:text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
               <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7" />
             </svg>
           </summary>
@@ -35,22 +35,22 @@
               <%= hidden_field_tag :application_id, app.id %>
 
               <div>
-                <label class="block text-sm font-medium text-gray-700 mb-2">Custom Claims (JSON)</label>
+                <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-2">Custom Claims (JSON)</label>
                 <%= text_area_tag :custom_claims,
                     (app_claim&.custom_claims.present? ? JSON.pretty_generate(app_claim.custom_claims) : ""),
                     rows: 8,
-                    class: "w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm font-mono",
+                    class: "w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm font-mono",
                     placeholder: '{"kavita_groups": ["admin"], "library_access": "all"}',
                     data: {
                       action: "input->json-validator#validate blur->json-validator#format",
                       json_validator_target: "textarea"
                     } %>
                 <div class="mt-2 space-y-1">
-                  <p class="text-xs text-gray-600">
+                  <p class="text-xs text-gray-600 dark:text-gray-400">
                     Example for <%= app.name %>: Add claims that this app specifically needs to read.
                   </p>
                   <p class="text-xs text-amber-600">
-                    <strong>Note:</strong> Do not use reserved claim names (<code class="bg-amber-50 px-1 rounded">groups</code>, <code class="bg-amber-50 px-1 rounded">email</code>, <code class="bg-amber-50 px-1 rounded">name</code>, etc.). Use app-specific names like <code class="bg-amber-50 px-1 rounded">kavita_groups</code> instead.
+                    <strong>Note:</strong> Do not use reserved claim names (<code class="bg-amber-50 dark:bg-amber-900/30 px-1 rounded">groups</code>, <code class="bg-amber-50 dark:bg-amber-900/30 px-1 rounded">email</code>, <code class="bg-amber-50 dark:bg-amber-900/30 px-1 rounded">name</code>, etc.). Use app-specific names like <code class="bg-amber-50 dark:bg-amber-900/30 px-1 rounded">kavita_groups</code> instead.
                   </p>
                   <div data-json-validator-target="status" class="text-xs font-medium"></div>
                 </div>
@@ -66,27 +66,27 @@
                       delete_application_claims_admin_user_path(user, application_id: app.id),
                       method: :delete,
                       data: { turbo_confirm: "Remove app-specific claims for #{app.name}?" },
-                      class: "rounded-md bg-white px-3 py-2 text-sm font-semibold text-gray-900 shadow-sm ring-1 ring-inset ring-gray-300 hover:bg-gray-50" %>
+                      class: "rounded-md bg-white dark:bg-gray-700 px-3 py-2 text-sm font-semibold text-gray-900 dark:text-gray-200 shadow-sm ring-1 ring-inset ring-gray-300 dark:ring-gray-600 hover:bg-gray-50 dark:hover:bg-gray-600" %>
                 <% end %>
               </div>
             <% end %>
 
             <!-- Preview merged claims -->
-            <div class="mt-4 border-t pt-4">
+            <div class="mt-4 border-t dark:border-gray-700 pt-4">
-              <h4 class="text-sm font-medium text-gray-700 mb-2">Preview: Final ID Token Claims for <%= app.name %></h4>
+              <h4 class="text-sm font-medium text-gray-700 dark:text-gray-300 mb-2">Preview: Final ID Token Claims for <%= app.name %></h4>
-              <div class="bg-gray-50 rounded-lg p-3">
+              <div class="bg-gray-50 dark:bg-gray-800 rounded-lg p-3">
-                <pre class="text-xs font-mono text-gray-800 overflow-x-auto"><%= JSON.pretty_generate(preview_user_claims(user, app)) %></pre>
+                <pre class="text-xs font-mono text-gray-800 dark:text-gray-200 overflow-x-auto"><%= JSON.pretty_generate(preview_user_claims(user, app)) %></pre>
               </div>
 
               <details class="mt-2">
-                <summary class="cursor-pointer text-xs text-gray-600 hover:text-gray-900">Show claim sources</summary>
+                <summary class="cursor-pointer text-xs text-gray-600 dark:text-gray-400 hover:text-gray-900 dark:hover:text-gray-100">Show claim sources</summary>
                 <div class="mt-2 space-y-1">
                   <% claim_sources(user, app).each do |source| %>
                     <div class="flex gap-2 items-start text-xs">
-                      <span class="px-2 py-1 rounded <%= source[:type] == :group ? 'bg-blue-100 text-blue-700' : (source[:type] == :user ? 'bg-green-100 text-green-700' : 'bg-amber-100 text-amber-700') %>">
+                      <span class="px-2 py-1 rounded <%= source[:type] == :group ? 'bg-blue-100 dark:bg-blue-900/50 text-blue-700 dark:text-blue-300' : (source[:type] == :user ? 'bg-green-100 dark:bg-green-900/50 text-green-700 dark:text-green-300' : 'bg-amber-100 dark:bg-amber-900/50 text-amber-700 dark:text-amber-300') %>">
                         <%= source[:name] %>
                       </span>
-                      <code class="text-gray-700"><%= source[:claims].to_json %></code>
+                      <code class="text-gray-700 dark:text-gray-300"><%= source[:claims].to_json %></code>
                     </div>
                   <% end %>
                 </div>
@@ -101,32 +101,32 @@
 
 <!-- ForwardAuth Apps: Headers Preview -->
 <% if forward_auth_apps.any? %>
-  <div class="mt-12 border-t pt-8">
+  <div class="mt-12 border-t dark:border-gray-700 pt-8">
-    <h2 class="text-xl font-semibold text-gray-900 mb-4">ForwardAuth Headers Preview</h2>
+    <h2 class="text-xl font-semibold text-gray-900 dark:text-gray-100 mb-4">ForwardAuth Headers Preview</h2>
-    <p class="text-sm text-gray-600 mb-6">
+    <p class="text-sm text-gray-600 dark:text-gray-400 mb-6">
       ForwardAuth applications receive HTTP headers (not OIDC tokens). Headers are based on user's email, name, groups, and admin status.
     </p>
 
     <div class="space-y-6">
       <% forward_auth_apps.each do |app| %>
-        <details class="border rounded-lg">
+        <details class="border dark:border-gray-700 rounded-lg">
-          <summary class="cursor-pointer bg-gray-50 px-4 py-3 hover:bg-gray-100 rounded-t-lg flex items-center justify-between">
+          <summary class="cursor-pointer bg-gray-50 dark:bg-gray-800 px-4 py-3 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-t-lg flex items-center justify-between">
             <div class="flex items-center gap-3">
-              <span class="font-medium text-gray-900"><%= app.name %></span>
+              <span class="font-medium text-gray-900 dark:text-gray-100"><%= app.name %></span>
-              <span class="text-xs px-2 py-1 rounded-full bg-green-100 text-green-700">
+              <span class="text-xs px-2 py-1 rounded-full bg-green-100 dark:bg-green-900/50 text-green-700 dark:text-green-300">
                 FORWARD AUTH
               </span>
-              <span class="text-xs text-gray-500">
+              <span class="text-xs text-gray-500 dark:text-gray-400">
                 <%= app.domain_pattern %>
               </span>
             </div>
-            <svg class="h-5 w-5 text-gray-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <svg class="h-5 w-5 text-gray-500 dark:text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
               <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7" />
             </svg>
           </summary>
 
           <div class="p-4 space-y-4">
-            <div class="bg-blue-50 border border-blue-200 rounded-lg p-3">
+            <div class="bg-blue-50 dark:bg-blue-900/30 border border-blue-200 dark:border-blue-700 rounded-lg p-3">
               <div class="flex items-start">
                 <svg class="h-5 w-5 text-blue-400 mr-2 flex-shrink-0 mt-0.5" fill="currentColor" viewBox="0 0 20 20">
                   <path fill-rule="evenodd" d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a1 1 0 000 2v3a1 1 0 001 1h1a1 1 0 100-2v-3a1 1 0 00-1-1H9z" clip-rule="evenodd" />
@@ -135,33 +135,33 @@
             </div>
 
             <div>
-              <h4 class="text-sm font-medium text-gray-700 mb-2">Headers Sent to <%= app.name %></h4>
+              <h4 class="text-sm font-medium text-gray-700 dark:text-gray-300 mb-2">Headers Sent to <%= app.name %></h4>
-              <div class="bg-gray-50 rounded-lg p-3 border">
+              <div class="bg-gray-50 dark:bg-gray-800 rounded-lg p-3 border dark:border-gray-700">
                 <% headers = app.headers_for_user(user) %>
                 <% if headers.any? %>
                   <dl class="space-y-2 text-xs font-mono">
                     <% headers.each do |header_name, value| %>
                       <div class="flex">
-                        <dt class="text-blue-600 font-semibold w-48"><%= header_name %>:</dt>
+                        <dt class="text-blue-600 dark:text-blue-400 font-semibold w-48"><%= header_name %>:</dt>
-                        <dd class="text-gray-800 flex-1"><%= value %></dd>
+                        <dd class="text-gray-800 dark:text-gray-200 flex-1"><%= value %></dd>
                       </div>
                     <% end %>
                   </dl>
                 <% else %>
-                  <p class="text-xs text-gray-500 italic">All headers disabled for this application.</p>
+                  <p class="text-xs text-gray-500 dark:text-gray-400 italic">All headers disabled for this application.</p>
                 <% end %>
               </div>
-              <p class="mt-2 text-xs text-gray-500">
+              <p class="mt-2 text-xs text-gray-500 dark:text-gray-400">
                 These headers are configured in the application settings and sent by your reverse proxy (Caddy/Traefik) to the upstream application.
               </p>
             </div>
 
             <% if user.groups.any? %>
               <div>
-                <h4 class="text-sm font-medium text-gray-700 mb-2">User's Groups</h4>
+                <h4 class="text-sm font-medium text-gray-700 dark:text-gray-300 mb-2">User's Groups</h4>
                 <div class="flex flex-wrap gap-2">
                   <% user.groups.each do |group| %>
-                    <span class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-blue-100 text-blue-800">
+                    <span class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-blue-100 dark:bg-blue-900/50 text-blue-800 dark:text-blue-200">
                       <%= group.name %>
                     </span>
                   <% end %>
@@ -176,10 +176,10 @@
 <% end %>
 
 <% if oidc_apps.empty? && forward_auth_apps.empty? %>
-  <div class="mt-12 border-t pt-8">
+  <div class="mt-12 border-t dark:border-gray-700 pt-8">
-    <div class="text-center py-12 bg-gray-50 rounded-lg">
+    <div class="text-center py-12 bg-gray-50 dark:bg-gray-800 rounded-lg">
-      <p class="text-gray-500">No active applications found.</p>
+      <p class="text-gray-500 dark:text-gray-400">No active applications found.</p>
-      <p class="text-sm text-gray-400 mt-1">Create applications in the Admin panel first.</p>
+      <p class="text-sm text-gray-400 dark:text-gray-500 mt-1">Create applications in the Admin panel first.</p>
     </div>
   </div>
 <% end %>

app/views/admin/users/_form.html.erb

@@ -2,49 +2,74 @@
   <%= render "shared/form_errors", form: form %>
 
   <div>
-    <%= form.label :email_address, class: "block text-sm font-medium text-gray-700" %>
+    <%= form.label :email_address, class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
-    <%= form.email_field :email_address, required: true, class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm", placeholder: "user@example.com" %>
+    <%= form.email_field :email_address, required: true, class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm", placeholder: "user@example.com" %>
   </div>
 
   <div>
-    <%= form.label :username, "Username (Optional)", class: "block text-sm font-medium text-gray-700" %>
+    <%= form.label :username, "Username (Optional)", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
-    <%= form.text_field :username, class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm", placeholder: "jsmith" %>
+    <%= form.text_field :username, class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm", placeholder: "jsmith" %>
-    <p class="mt-1 text-sm text-gray-500">Optional: Short username/handle for login. Can only contain letters, numbers, underscores, and hyphens.</p>
+    <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">Optional: Short username/handle for login. Can only contain letters, numbers, underscores, and hyphens.</p>
   </div>
 
   <div>
-    <%= form.label :name, "Display Name (Optional)", class: "block text-sm font-medium text-gray-700" %>
+    <%= form.label :name, "Display Name (Optional)", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
-    <%= form.text_field :name, class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm", placeholder: "John Smith" %>
+    <%= form.text_field :name, class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm", placeholder: "John Smith" %>
-    <p class="mt-1 text-sm text-gray-500">Optional: Full name shown in applications. Defaults to email address if not set.</p>
+    <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">Optional: Full name shown in applications. Defaults to email address if not set.</p>
   </div>
 
   <div>
-    <%= form.label :password, class: "block text-sm font-medium text-gray-700" %>
+    <%= form.label :password, class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
-    <%= form.password_field :password, class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm", placeholder: user.persisted? ? "Leave blank to keep current password" : "Enter password" %>
+    <%= form.password_field :password, class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm", placeholder: user.persisted? ? "Leave blank to keep current password" : "Enter password" %>
     <% if user.persisted? %>
-      <p class="mt-1 text-sm text-gray-500">Leave blank to keep the current password</p>
+      <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">Leave blank to keep the current password</p>
     <% else %>
-      <p class="mt-1 text-sm text-gray-500">Leave blank to generate a random password</p>
+      <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">Leave blank to generate a random password</p>
     <% end %>
   </div>
 
   <div>
-    <%= form.label :status, class: "block text-sm font-medium text-gray-700" %>
+    <%= form.label :status, class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
-    <%= form.select :status, User.statuses.keys.map { |s| [s.titleize, s] }, {}, class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm" %>
+    <%= form.select :status, User.statuses.keys.map { |s| [s.titleize, s] }, {}, class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm" %>
   </div>
 
+  <div>
+    <%= form.label :group_ids, "Group Memberships", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
+    <div class="mt-2 space-y-2 max-h-64 overflow-y-auto border border-gray-200 dark:border-gray-700 rounded-md p-3">
+      <% if @available_groups.any? %>
+        <% @available_groups.each do |group| %>
           <div class="flex items-center">
-    <%= form.check_box :admin, class: "h-4 w-4 rounded border-gray-300 text-blue-600 focus:ring-blue-500", disabled: (user == Current.session.user) %>
+            <%= check_box_tag "user[group_ids][]", group.id, user.groups.include?(group), class: "h-4 w-4 rounded border-gray-300 dark:border-gray-600 text-blue-600 focus:ring-blue-500" %>
-    <%= form.label :admin, "Administrator", class: "ml-2 block text-sm text-gray-900" %>
+            <%= label_tag "user_group_ids_#{group.id}", group.name, class: "ml-2 text-sm text-gray-900 dark:text-gray-100" %>
-    <% if user == Current.session.user %>
+            <% if group.admin? %>
-      <span class="ml-2 text-xs text-gray-500">(Cannot change your own admin status)</span>
+              <span class="ml-2 inline-flex items-center rounded-full bg-blue-100 dark:bg-blue-900/50 px-2 py-0.5 text-xs font-medium text-blue-700 dark:text-blue-300">Admin</span>
+            <% end %>
+            <% if group.auto_assign? %>
+              <span class="ml-2 inline-flex items-center rounded-full bg-green-100 dark:bg-green-900/50 px-2 py-0.5 text-xs font-medium text-green-700 dark:text-green-300">Auto Assign</span>
+            <% end %>
+          </div>
+        <% end %>
+      <% else %>
+        <p class="text-sm text-gray-500 dark:text-gray-400">No groups available. Create a group first.</p>
+      <% end %>
+    </div>
+    <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">Administrators are members of any group with the Admin flag set. You cannot remove yourself from your last administrator group.</p>
+    <% unless user.persisted? %>
+      <% auto_names = Group.where(auto_assign: true).pluck(:name) %>
+      <% if auto_names.any? %>
+        <div class="mt-2 flex items-center">
+          <%= check_box_tag "auto_assign", "1", true, class: "h-4 w-4 rounded border-gray-300 dark:border-gray-600 text-blue-600 focus:ring-blue-500" %>
+          <%= label_tag "auto_assign", "Auto-assign to default groups (#{auto_names.join(", ")})", class: "ml-2 text-sm text-gray-900 dark:text-gray-100" %>
+        </div>
+        <p class="mt-1 text-xs text-gray-500 dark:text-gray-400">Uncheck to invite this user without auto-assigning the default group(s) — useful for restricted accounts.</p>
+      <% end %>
     <% end %>
   </div>
 
   <div>
     <div class="flex items-center">
-      <%= form.check_box :totp_required, class: "h-4 w-4 rounded border-gray-300 text-blue-600 focus:ring-blue-500" %>
+      <%= form.check_box :totp_required, class: "h-4 w-4 rounded border-gray-300 dark:border-gray-600 text-blue-600 focus:ring-blue-500" %>
-      <%= form.label :totp_required, "Require Two-Factor Authentication", class: "ml-2 block text-sm text-gray-900" %>
+      <%= form.label :totp_required, "Require Two-Factor Authentication", class: "ml-2 block text-sm text-gray-900 dark:text-gray-100" %>
       <% if user.totp_required? && !user.totp_enabled? %>
         <span class="ml-2 text-xs text-amber-600">(User has not set up 2FA yet)</span>
       <% end %>
@@ -57,24 +82,24 @@
         Warning: This user will be prompted to set up 2FA on their next login.
       </p>
     <% end %>
-    <p class="mt-1 text-sm text-gray-500">When enabled, this user must use two-factor authentication to sign in.</p>
+    <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">When enabled, this user must use two-factor authentication to sign in.</p>
   </div>
 
   <div data-controller="json-validator" data-json-validator-valid-class="border-green-500 focus:border-green-500 focus:ring-green-500" data-json-validator-invalid-class="border-red-500 focus:border-red-500 focus:ring-red-500" data-json-validator-valid-status-class="text-green-600" data-json-validator-invalid-status-class="text-red-600">
-    <%= form.label :custom_claims, "Custom Claims (JSON)", class: "block text-sm font-medium text-gray-700" %>
+    <%= form.label :custom_claims, "Custom Claims (JSON)", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
     <%= form.text_area :custom_claims, value: (user.custom_claims.present? ? JSON.pretty_generate(user.custom_claims) : ""), rows: 8,
-        class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm font-mono",
+        class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm font-mono",
         placeholder: '{"department": "engineering", "level": "senior"}',
         data: {
           action: "input->json-validator#validate blur->json-validator#format",
           json_validator_target: "textarea"
         } %>
-    <div class="mt-2 text-sm text-gray-600 space-y-1">
+    <div class="mt-2 text-sm text-gray-600 dark:text-gray-400 space-y-1">
       <div class="flex items-center justify-between">
         <p>Optional: User-specific custom claims to add to OIDC tokens. These override group-level claims.</p>
         <div class="flex items-center gap-2">
-          <button type="button" data-action="json-validator#format" class="text-xs bg-gray-100 hover:bg-gray-200 px-2 py-1 rounded">Format JSON</button>
+          <button type="button" data-action="json-validator#format" class="text-xs bg-gray-100 dark:bg-gray-700 dark:text-gray-200 hover:bg-gray-200 dark:hover:bg-gray-600 px-2 py-1 rounded">Format JSON</button>
-          <button type="button" data-action="json-validator#insertSample" data-json-sample='{"department": "engineering", "level": "senior", "location": "remote"}' class="text-xs bg-blue-100 hover:bg-blue-200 text-blue-700 px-2 py-1 rounded">Insert Example</button>
+          <button type="button" data-action="json-validator#insertSample" data-json-sample='{"department": "engineering", "level": "senior", "location": "remote"}' class="text-xs bg-blue-100 dark:bg-blue-900/50 hover:bg-blue-200 dark:hover:bg-blue-900 text-blue-700 dark:text-blue-300 px-2 py-1 rounded">Insert Example</button>
         </div>
       </div>
       <div data-json-validator-target="status" class="text-xs font-medium"></div>
@@ -83,6 +108,6 @@
 
   <div class="flex gap-3">
     <%= form.submit user.persisted? ? "Update User" : "Create User", class: "rounded-md bg-blue-600 px-3 py-2 text-sm font-semibold text-white shadow-sm hover:bg-blue-500 focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-blue-600" %>
-    <%= link_to "Cancel", admin_users_path, class: "rounded-md bg-white px-3 py-2 text-sm font-semibold text-gray-900 shadow-sm ring-1 ring-inset ring-gray-300 hover:bg-gray-50" %>
+    <%= link_to "Cancel", admin_users_path, class: "rounded-md bg-white dark:bg-gray-700 px-3 py-2 text-sm font-semibold text-gray-900 dark:text-gray-200 shadow-sm ring-1 ring-inset ring-gray-300 dark:ring-gray-600 hover:bg-gray-50 dark:hover:bg-gray-600" %>
   </div>
 <% end %>

app/views/admin/users/edit.html.erb

@@ -1,6 +1,6 @@
 <div class="max-w-4xl">
-  <h1 class="text-2xl font-semibold text-gray-900 mb-6">Edit User</h1>
+  <h1 class="text-2xl font-semibold text-gray-900 dark:text-gray-100 mb-6">Edit User</h1>
-  <p class="text-sm text-gray-600 mb-6">Editing: <%= @user.email_address %></p>
+  <p class="text-sm text-gray-600 dark:text-gray-400 mb-6">Editing: <%= @user.email_address %></p>
 
   <div class="max-w-2xl">
     <%= render "form", user: @user %>

app/views/admin/users/index.html.erb

@@ -1,7 +1,7 @@
 <div class="sm:flex sm:items-center">
   <div class="sm:flex-auto">
-    <h1 class="text-2xl font-semibold text-gray-900">Users</h1>
+    <h1 class="text-2xl font-semibold text-gray-900 dark:text-gray-100">Users</h1>
-    <p class="mt-2 text-sm text-gray-700">A list of all users in the system.</p>
+    <p class="mt-2 text-sm text-gray-700 dark:text-gray-300">A list of all users in the system.</p>
   </div>
   <div class="mt-4 sm:mt-0 sm:ml-16 sm:flex-none">
     <%= link_to "New User", new_admin_user_path, class: "block rounded-md bg-blue-600 px-3 py-2 text-center text-sm font-semibold text-white shadow-sm hover:bg-blue-500 focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-blue-600" %>
@@ -9,7 +9,7 @@
 </div>
 
 <% unless smtp_configured? %>
-  <div class="mt-6 rounded-md bg-yellow-50 p-4">
+  <div class="mt-6 rounded-md bg-yellow-50 dark:bg-yellow-900/30 p-4">
     <div class="flex">
       <div class="flex-shrink-0">
         <svg class="h-5 w-5 text-yellow-400" viewBox="0 0 20 20" fill="currentColor" aria-hidden="true">
@@ -17,10 +17,10 @@
         </svg>
       </div>
       <div class="ml-3">
-        <h3 class="text-sm font-medium text-yellow-800">
+        <h3 class="text-sm font-medium text-yellow-800 dark:text-yellow-200">
           Email delivery not configured
         </h3>
-        <div class="mt-2 text-sm text-yellow-700">
+        <div class="mt-2 text-sm text-yellow-700 dark:text-yellow-300">
           <p>
             <% if Rails.env.development? %>
               Emails are being delivered using <span class="font-mono"><%= email_delivery_method %></span> and will open in your browser.
@@ -44,63 +44,63 @@
 <div class="mt-8 flow-root">
   <div class="-mx-4 -my-2 overflow-x-auto sm:-mx-6 lg:-mx-8">
     <div class="inline-block min-w-full py-2 align-middle sm:px-6 lg:px-8">
-      <table class="min-w-full divide-y divide-gray-300">
+      <table class="min-w-full divide-y divide-gray-300 dark:divide-gray-600">
         <thead>
           <tr>
-            <th scope="col" class="py-3.5 pl-4 pr-3 text-left text-sm font-semibold text-gray-900 sm:pl-0">Email</th>
+            <th scope="col" class="py-3.5 pl-4 pr-3 text-left text-sm font-semibold text-gray-900 dark:text-gray-100 sm:pl-0">Email</th>
-            <th scope="col" class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900">Status</th>
+            <th scope="col" class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900 dark:text-gray-100">Status</th>
-            <th scope="col" class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900">Role</th>
+            <th scope="col" class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900 dark:text-gray-100">Role</th>
-            <th scope="col" class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900">2FA</th>
+            <th scope="col" class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900 dark:text-gray-100">2FA</th>
-            <th scope="col" class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900">Groups</th>
+            <th scope="col" class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900 dark:text-gray-100">Groups</th>
             <th scope="col" class="relative py-3.5 pl-3 pr-4 sm:pr-0">
               <span class="sr-only">Actions</span>
             </th>
           </tr>
         </thead>
-        <tbody class="divide-y divide-gray-200">
+        <tbody class="divide-y divide-gray-200 dark:divide-gray-700">
           <% @users.each do |user| %>
             <tr>
-              <td class="whitespace-nowrap py-4 pl-4 pr-3 text-sm font-medium text-gray-900 sm:pl-0">
+              <td class="whitespace-nowrap py-4 pl-4 pr-3 text-sm font-medium text-gray-900 dark:text-gray-100 sm:pl-0">
-                <%= user.email_address %>
+                <%= link_to user.email_address, admin_user_path(user), class: "text-blue-600 hover:text-blue-900" %>
               </td>
-              <td class="whitespace-nowrap px-3 py-4 text-sm text-gray-500">
+              <td class="whitespace-nowrap px-3 py-4 text-sm text-gray-500 dark:text-gray-400">
                 <% if user.status.present? %>
                   <% case user.status.to_sym %>
                   <% when :active %>
-                    <span class="inline-flex items-center rounded-full bg-green-100 px-2 py-1 text-xs font-medium text-green-700">Active</span>
+                    <span class="inline-flex items-center rounded-full bg-green-100 dark:bg-green-900/50 px-2 py-1 text-xs font-medium text-green-700 dark:text-green-300">Active</span>
                   <% when :disabled %>
-                    <span class="inline-flex items-center rounded-full bg-red-100 px-2 py-1 text-xs font-medium text-red-700">Disabled</span>
+                    <span class="inline-flex items-center rounded-full bg-red-100 dark:bg-red-900/50 px-2 py-1 text-xs font-medium text-red-700 dark:text-red-300">Disabled</span>
                   <% when :pending_invitation %>
-                    <span class="inline-flex items-center rounded-full bg-yellow-100 px-2 py-1 text-xs font-medium text-yellow-700">Pending</span>
+                    <span class="inline-flex items-center rounded-full bg-yellow-100 dark:bg-yellow-900/50 px-2 py-1 text-xs font-medium text-yellow-700 dark:text-yellow-300">Pending</span>
                   <% end %>
                 <% else %>
-                  <span class="text-gray-400">-</span>
+                  <span class="text-gray-400 dark:text-gray-500">-</span>
                 <% end %>
               </td>
-              <td class="whitespace-nowrap px-3 py-4 text-sm text-gray-500">
+              <td class="whitespace-nowrap px-3 py-4 text-sm text-gray-500 dark:text-gray-400">
                 <% if user.admin? %>
-                  <span class="inline-flex items-center rounded-full bg-blue-100 px-2 py-1 text-xs font-medium text-blue-700">Admin</span>
+                  <span class="inline-flex items-center rounded-full bg-blue-100 dark:bg-blue-900/50 px-2 py-1 text-xs font-medium text-blue-700 dark:text-blue-300">Admin</span>
                 <% else %>
-                  <span class="text-gray-500">User</span>
+                  <span class="text-gray-500 dark:text-gray-400">User</span>
                 <% end %>
               </td>
-              <td class="whitespace-nowrap px-3 py-4 text-sm text-gray-500">
+              <td class="whitespace-nowrap px-3 py-4 text-sm text-gray-500 dark:text-gray-400">
                 <div class="flex items-center gap-2">
                   <% if user.totp_enabled? %>
                     <svg class="h-5 w-5 text-green-500" fill="none" stroke="currentColor" viewBox="0 0 24 24" title="2FA Enabled">
                       <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z"></path>
                     </svg>
                   <% else %>
-                    <svg class="h-5 w-5 text-gray-300" fill="none" stroke="currentColor" viewBox="0 0 24 24" title="2FA Not Enabled">
+                    <svg class="h-5 w-5 text-gray-300 dark:text-gray-600" fill="none" stroke="currentColor" viewBox="0 0 24 24" title="2FA Not Enabled">
                       <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M10 14l2-2m0 0l2-2m-2 2l-2-2m2 2l2 2m7-2a9 9 0 11-18 0 9 9 0 0118 0z"></path>
                     </svg>
                   <% end %>
                   <% if user.totp_required? %>
-                    <span class="inline-flex items-center rounded-full bg-blue-100 px-2 py-1 text-xs font-medium text-blue-700" title="2FA Required by Admin">Required</span>
+                    <span class="inline-flex items-center rounded-full bg-blue-100 dark:bg-blue-900/50 px-2 py-1 text-xs font-medium text-blue-700 dark:text-blue-300" title="2FA Required by Admin">Required</span>
                   <% end %>
                 </div>
               </td>
-              <td class="whitespace-nowrap px-3 py-4 text-sm text-gray-500">
+              <td class="whitespace-nowrap px-3 py-4 text-sm text-gray-500 dark:text-gray-400">
                 <%= user.groups.count %>
               </td>
               <td class="relative whitespace-nowrap py-4 pl-3 pr-4 text-right text-sm font-medium sm:pr-0">
@@ -110,6 +110,7 @@
                         data: { turbo_method: :post },
                         class: "text-yellow-600 hover:text-yellow-900" %>
                   <% end %>
+                  <%= link_to "View", admin_user_path(user), class: "text-blue-600 hover:text-blue-900" %>
                   <%= link_to "Edit", edit_admin_user_path(user), class: "text-blue-600 hover:text-blue-900" %>
                   <%= link_to "Delete", admin_user_path(user),
                       data: { turbo_method: :delete, turbo_confirm: "Are you sure you want to delete this user?" },

app/views/admin/users/new.html.erb

@@ -1,4 +1,4 @@
 <div class="max-w-2xl">
-  <h1 class="text-2xl font-semibold text-gray-900 mb-6">New User</h1>
+  <h1 class="text-2xl font-semibold text-gray-900 dark:text-gray-100 mb-6">New User</h1>
   <%= render "form", user: @user %>
 </div>

app/views/admin/users/show.html.erb

@@ -0,0 +1,95 @@
+<div class="mb-6">
+  <div class="sm:flex sm:items-center sm:justify-between">
+    <div>
+      <div class="flex items-center gap-2">
+        <h1 class="text-2xl font-semibold text-gray-900 dark:text-gray-100"><%= @user.email_address %></h1>
+        <% if @user.admin? %>
+          <span class="inline-flex items-center rounded-full bg-blue-100 dark:bg-blue-900/50 px-2 py-0.5 text-xs font-medium text-blue-700 dark:text-blue-300">Admin</span>
+        <% end %>
+        <% case @user.status %>
+        <% when "active" %>
+          <span class="inline-flex items-center rounded-full bg-green-100 dark:bg-green-900/50 px-2 py-0.5 text-xs font-medium text-green-700 dark:text-green-300">Active</span>
+        <% when "disabled" %>
+          <span class="inline-flex items-center rounded-full bg-gray-100 dark:bg-gray-700 px-2 py-0.5 text-xs font-medium text-gray-700 dark:text-gray-300">Disabled</span>
+        <% when "pending_invitation" %>
+          <span class="inline-flex items-center rounded-full bg-amber-100 dark:bg-amber-900/50 px-2 py-0.5 text-xs font-medium text-amber-700 dark:text-amber-300">Pending Invitation</span>
+        <% end %>
+      </div>
+      <% if @user.name.present? %>
+        <p class="mt-1 text-sm text-gray-500 dark:text-gray-400"><%= @user.name %></p>
+      <% end %>
+    </div>
+    <div class="mt-4 sm:mt-0 flex gap-3">
+      <%= link_to "Edit", edit_admin_user_path(@user), class: "rounded-md bg-white dark:bg-gray-700 px-3 py-2 text-sm font-semibold text-gray-900 dark:text-gray-200 shadow-sm ring-1 ring-inset ring-gray-300 dark:ring-gray-600 hover:bg-gray-50 dark:hover:bg-gray-600" %>
+    </div>
+  </div>
+</div>
+
+<div class="space-y-6">
+  <!-- Group memberships -->
+  <div class="bg-white dark:bg-gray-800 shadow sm:rounded-lg">
+    <div class="px-4 py-5 sm:p-6">
+      <h3 class="text-base font-semibold leading-6 text-gray-900 dark:text-gray-100 mb-4">
+        Group memberships (<%= @user.groups.count %>)
+      </h3>
+      <% if @user.groups.any? %>
+        <ul class="divide-y divide-gray-200 dark:divide-gray-700 border border-gray-200 dark:border-gray-700 rounded-md">
+          <% @user.groups.order(:name).each do |group| %>
+            <li class="px-4 py-3 flex items-center justify-between">
+              <div class="flex items-center gap-2">
+                <p class="text-sm font-medium text-gray-900 dark:text-gray-100"><%= group.name %></p>
+                <% if group.admin? %>
+                  <span class="inline-flex items-center rounded-full bg-blue-100 dark:bg-blue-900/50 px-2 py-0.5 text-xs font-medium text-blue-700 dark:text-blue-300">Admin</span>
+                <% end %>
+                <% if group.auto_assign? %>
+                  <span class="inline-flex items-center rounded-full bg-green-100 dark:bg-green-900/50 px-2 py-0.5 text-xs font-medium text-green-700 dark:text-green-300">Auto Assign</span>
+                <% end %>
+              </div>
+              <%= link_to "View", admin_group_path(group), class: "text-blue-600 hover:text-blue-900 text-sm" %>
+            </li>
+          <% end %>
+        </ul>
+      <% else %>
+        <p class="text-sm text-gray-500 dark:text-gray-400">This user is in no groups.</p>
+      <% end %>
+    </div>
+  </div>
+
+  <!-- Accessible applications -->
+  <div class="bg-white dark:bg-gray-800 shadow sm:rounded-lg">
+    <div class="px-4 py-5 sm:p-6">
+      <h3 class="text-base font-semibold leading-6 text-gray-900 dark:text-gray-100 mb-4">
+        Accessible applications (<%= @accessible_applications.count %>)
+      </h3>
+      <% unless @user.active? %>
+        <div class="rounded-md bg-amber-50 dark:bg-amber-900/30 p-4">
+          <p class="text-sm text-amber-700 dark:text-amber-300">
+            User is <%= @user.status.humanize.downcase %> — access is denied regardless of group memberships.
+          </p>
+        </div>
+      <% end %>
+      <% if @accessible_applications.any? %>
+        <ul class="divide-y divide-gray-200 dark:divide-gray-700 border border-gray-200 dark:border-gray-700 rounded-md">
+          <% @accessible_applications.each do |app| %>
+            <% via = app.allowed_groups & @user.groups %>
+            <li class="px-4 py-3 flex items-center justify-between">
+              <div>
+                <p class="text-sm font-medium text-gray-900 dark:text-gray-100"><%= app.name %></p>
+                <div class="flex flex-wrap gap-1 mt-1">
+                  <% via.each do |g| %>
+                    <span class="inline-flex items-center rounded-full bg-gray-100 dark:bg-gray-700 px-2 py-0.5 text-xs font-medium text-gray-700 dark:text-gray-300">via <%= g.name %></span>
+                  <% end %>
+                </div>
+              </div>
+              <%= link_to "View", admin_application_path(app), class: "text-blue-600 hover:text-blue-900 text-sm" %>
+            </li>
+          <% end %>
+        </ul>
+      <% else %>
+        <div class="rounded-md bg-gray-50 dark:bg-gray-700 p-4">
+          <p class="text-sm text-gray-500 dark:text-gray-400">No accessible applications. Add the user to a group that's attached to one or more applications.</p>
+        </div>
+      <% end %>
+    </div>
+  </div>
+</div>

app/views/api_keys/index.html.erb

@@ -1,44 +1,44 @@
 <div class="max-w-4xl mx-auto">
   <div class="mb-8 flex items-center justify-between">
     <div>
-      <h1 class="text-3xl font-bold text-gray-900">API Keys</h1>
+      <h1 class="text-3xl font-bold text-gray-900 dark:text-gray-100">API Keys</h1>
-      <p class="mt-2 text-sm text-gray-600">
+      <p class="mt-2 text-sm text-gray-600 dark:text-gray-400">
         Bearer tokens for server-to-server access to forward auth applications.
       </p>
     </div>
     <%= link_to "New API Key", new_api_key_path,
-        class: "inline-flex items-center rounded-md border border-transparent bg-blue-600 py-2 px-4 text-sm font-medium text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2" %>
+        class: "inline-flex items-center rounded-md border border-transparent bg-blue-600 py-2 px-4 text-sm font-medium text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900" %>
   </div>
 
   <% if @api_keys.any? %>
-    <div class="bg-white shadow overflow-hidden sm:rounded-lg">
+    <div class="bg-white dark:bg-gray-800 shadow overflow-hidden sm:rounded-lg">
-      <table class="min-w-full divide-y divide-gray-200">
+      <table class="min-w-full divide-y divide-gray-200 dark:divide-gray-700">
-        <thead class="bg-gray-50">
+        <thead class="bg-gray-50 dark:bg-gray-700">
           <tr>
-            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Name</th>
+            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">Name</th>
-            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Application</th>
+            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">Application</th>
-            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Created</th>
+            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">Created</th>
-            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Last Used</th>
+            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">Last Used</th>
-            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Expires</th>
+            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">Expires</th>
-            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Status</th>
+            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">Status</th>
-            <th class="px-6 py-3 text-right text-xs font-medium text-gray-500 uppercase tracking-wider"></th>
+            <th class="px-6 py-3 text-right text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider"></th>
           </tr>
         </thead>
-        <tbody class="bg-white divide-y divide-gray-200">
+        <tbody class="bg-white dark:bg-gray-800 divide-y divide-gray-200 dark:divide-gray-700">
           <% @api_keys.each do |key| %>
             <tr>
-              <td class="px-6 py-4 whitespace-nowrap text-sm font-medium text-gray-900"><%= key.name %></td>
+              <td class="px-6 py-4 whitespace-nowrap text-sm font-medium text-gray-900 dark:text-gray-100"><%= key.name %></td>
-              <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-500"><%= key.application.name %></td>
+              <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-500 dark:text-gray-400"><%= key.application.name %></td>
-              <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-500"><%= key.created_at.strftime("%b %d, %Y") %></td>
+              <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-500 dark:text-gray-400"><%= key.created_at.strftime("%b %d, %Y") %></td>
-              <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-500"><%= key.last_used_at ? time_ago_in_words(key.last_used_at) + " ago" : "Never" %></td>
+              <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-500 dark:text-gray-400"><%= key.last_used_at ? time_ago_in_words(key.last_used_at) + " ago" : "Never" %></td>
-              <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-500"><%= key.expires_at ? key.expires_at.strftime("%b %d, %Y") : "Never" %></td>
+              <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-500 dark:text-gray-400"><%= key.expires_at ? key.expires_at.strftime("%b %d, %Y") : "Never" %></td>
               <td class="px-6 py-4 whitespace-nowrap">
                 <% if key.revoked? %>
-                  <span class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-red-100 text-red-800">Revoked</span>
+                  <span class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-red-100 dark:bg-red-900/50 text-red-800 dark:text-red-200">Revoked</span>
                 <% elsif key.expired? %>
-                  <span class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-yellow-100 text-yellow-800">Expired</span>
+                  <span class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-yellow-100 dark:bg-yellow-900/50 text-yellow-800 dark:text-yellow-200">Expired</span>
                 <% else %>
-                  <span class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-green-100 text-green-800">Active</span>
+                  <span class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-green-100 dark:bg-green-900/50 text-green-800 dark:text-green-200">Active</span>
                 <% end %>
               </td>
               <td class="px-6 py-4 whitespace-nowrap text-right text-sm font-medium">
@@ -54,12 +54,12 @@
       </table>
     </div>
   <% else %>
-    <div class="bg-gray-50 rounded-lg border border-gray-200 p-8 text-center">
+    <div class="bg-gray-50 dark:bg-gray-800 rounded-lg border border-gray-200 dark:border-gray-700 p-8 text-center">
       <svg class="mx-auto h-12 w-12 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
         <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 7a2 2 0 012 2m4 0a6 6 0 01-7.743 5.743L11 17H9v2H7v2H4a1 1 0 01-1-1v-2.586a1 1 0 01.293-.707l5.964-5.964A6 6 0 1121 9z"></path>
       </svg>
-      <h3 class="mt-4 text-lg font-medium text-gray-900">No API keys</h3>
+      <h3 class="mt-4 text-lg font-medium text-gray-900 dark:text-gray-100">No API keys</h3>
-      <p class="mt-2 text-sm text-gray-500">
+      <p class="mt-2 text-sm text-gray-500 dark:text-gray-400">
         Create an API key to authenticate server-to-server requests.
       </p>
       <div class="mt-6">

app/views/api_keys/new.html.erb

@@ -1,17 +1,17 @@
 <div class="max-w-lg mx-auto">
   <div class="mb-8">
-    <h1 class="text-3xl font-bold text-gray-900">New API Key</h1>
+    <h1 class="text-3xl font-bold text-gray-900 dark:text-gray-100">New API Key</h1>
-    <p class="mt-2 text-sm text-gray-600">
+    <p class="mt-2 text-sm text-gray-600 dark:text-gray-400">
       Create a bearer token for server-to-server access to a forward auth application.
     </p>
   </div>
 
-  <div class="bg-white shadow sm:rounded-lg">
+  <div class="bg-white dark:bg-gray-800 shadow sm:rounded-lg">
     <div class="px-4 py-5 sm:p-6">
       <%= form_with(model: @api_key, class: "space-y-6") do |f| %>
         <% if @api_key.errors.any? %>
-          <div class="rounded-md bg-red-50 p-4">
+          <div class="rounded-md bg-red-50 dark:bg-red-900/30 p-4">
-            <div class="text-sm text-red-700">
+            <div class="text-sm text-red-700 dark:text-red-300">
               <ul class="list-disc pl-5 space-y-1">
                 <% @api_key.errors.full_messages.each do |msg| %>
                   <li><%= msg %></li>
@@ -22,32 +22,32 @@
         <% end %>
 
         <div>
-          <%= f.label :name, class: "block text-sm font-medium text-gray-700" %>
+          <%= f.label :name, class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
-          <%= f.text_field :name, class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm",
+          <%= f.text_field :name, class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm",
               placeholder: "e.g., Video Player WebDAV" %>
         </div>
 
         <div>
-          <%= f.label :application_id, "Application", class: "block text-sm font-medium text-gray-700" %>
+          <%= f.label :application_id, "Application", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
           <% if @applications.any? %>
             <%= f.collection_select :application_id, @applications, :id, :name,
                 { prompt: "Select an application" },
-                { class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm" } %>
+                { class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm" } %>
           <% else %>
-            <p class="mt-1 text-sm text-gray-500">No forward auth applications available.</p>
+            <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">No forward auth applications available.</p>
           <% end %>
         </div>
 
         <div>
-          <%= f.label :expires_at, "Expiration (optional)", class: "block text-sm font-medium text-gray-700" %>
+          <%= f.label :expires_at, "Expiration (optional)", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
-          <%= f.datetime_local_field :expires_at, class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm" %>
+          <%= f.datetime_local_field :expires_at, class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm" %>
-          <p class="mt-1 text-xs text-gray-500">Leave blank for no expiration.</p>
+          <p class="mt-1 text-xs text-gray-500 dark:text-gray-400">Leave blank for no expiration.</p>
         </div>
 
         <div class="flex items-center justify-end gap-3">
-          <%= link_to "Cancel", api_keys_path, class: "text-sm font-medium text-gray-700 hover:text-gray-500" %>
+          <%= link_to "Cancel", api_keys_path, class: "text-sm font-medium text-gray-700 dark:text-gray-300 hover:text-gray-500 dark:hover:text-gray-400" %>
           <%= f.submit "Create API Key",
-              class: "inline-flex justify-center rounded-md border border-transparent bg-blue-600 py-2 px-4 text-sm font-medium text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2" %>
+              class: "inline-flex justify-center rounded-md border border-transparent bg-blue-600 py-2 px-4 text-sm font-medium text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900" %>
         </div>
       <% end %>
     </div>

app/views/api_keys/show.html.erb

@@ -1,19 +1,19 @@
 <div class="max-w-2xl mx-auto" data-controller="clipboard">
   <div class="mb-8">
-    <h1 class="text-3xl font-bold text-gray-900">API Key Created</h1>
+    <h1 class="text-3xl font-bold text-gray-900 dark:text-gray-100">API Key Created</h1>
-    <p class="mt-2 text-sm text-gray-600">
+    <p class="mt-2 text-sm text-gray-600 dark:text-gray-400">
       Copy your API key now. You won't be able to see it again.
     </p>
   </div>
 
-  <div class="bg-white shadow sm:rounded-lg">
+  <div class="bg-white dark:bg-gray-800 shadow sm:rounded-lg">
     <div class="px-4 py-5 sm:p-6">
-      <div class="rounded-md bg-yellow-50 p-4 mb-6">
+      <div class="rounded-md bg-yellow-50 dark:bg-yellow-900/30 p-4 mb-6">
         <div class="flex">
           <svg class="h-5 w-5 text-yellow-400 mr-3 flex-shrink-0" viewBox="0 0 20 20" fill="currentColor">
             <path fill-rule="evenodd" d="M8.485 2.495c.673-1.167 2.357-1.167 3.03 0l6.28 10.875c.673 1.167-.17 2.625-1.516 2.625H3.72c-1.347 0-2.189-1.458-1.515-2.625L8.485 2.495zM10 5a.75.75 0 01.75.75v3.5a.75.75 0 01-1.5 0v-3.5A.75.75 0 0110 5zm0 9a1 1 0 100-2 1 1 0 000 2z" clip-rule="evenodd" />
           </svg>
-          <div class="text-sm text-yellow-800">
+          <div class="text-sm text-yellow-800 dark:text-yellow-200">
             <p class="font-medium">Save this key now!</p>
             <p class="mt-1">This is the only time you'll see the full API key. Store it securely.</p>
           </div>
@@ -21,14 +21,14 @@
       </div>
 
       <div>
-        <label class="block text-sm font-medium text-gray-700 mb-1">API Key</label>
+        <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">API Key</label>
         <div class="flex items-center gap-2">
           <input type="text" readonly value="<%= @plaintext_token %>"
                  data-clipboard-target="source"
-                 class="flex-1 rounded-md border-gray-300 bg-gray-50 font-mono text-sm shadow-sm focus:border-blue-500 focus:ring-blue-500" />
+                 class="flex-1 rounded-md border-gray-300 dark:border-gray-600 bg-gray-50 dark:bg-gray-700 dark:text-gray-100 font-mono text-sm shadow-sm focus:border-blue-500 focus:ring-blue-500" />
           <button data-action="click->clipboard#copy"
                   data-clipboard-target="button"
-                  class="inline-flex items-center rounded-md border border-gray-300 bg-white py-2 px-3 text-sm font-medium text-gray-700 shadow-sm hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2">
+                  class="inline-flex items-center rounded-md border border-gray-300 dark:border-gray-600 bg-white dark:bg-gray-700 py-2 px-3 text-sm font-medium text-gray-700 dark:text-gray-200 shadow-sm hover:bg-gray-50 dark:hover:bg-gray-600 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900">
             <svg class="h-4 w-4 mr-1" fill="none" viewBox="0 0 24 24" stroke="currentColor">
               <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 5H6a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2v-1M8 5a2 2 0 002 2h2a2 2 0 002-2M8 5a2 2 0 012-2h2a2 2 0 012 2m0 0h2a2 2 0 012 2v3m2 4H10m0 0l3-3m-3 3l3 3" />
             </svg>
@@ -37,22 +37,22 @@
         </div>
       </div>
 
-      <div class="mt-6 space-y-2 text-sm text-gray-600">
+      <div class="mt-6 space-y-2 text-sm text-gray-600 dark:text-gray-400">
         <p><strong>Name:</strong> <%= @api_key.name %></p>
         <p><strong>Application:</strong> <%= @api_key.application.name %></p>
         <p><strong>Expires:</strong> <%= @api_key.expires_at ? @api_key.expires_at.strftime("%b %d, %Y %H:%M") : "Never" %></p>
       </div>
 
-      <div class="mt-6 rounded-md bg-gray-50 p-4">
+      <div class="mt-6 rounded-md bg-gray-50 dark:bg-gray-700 p-4">
-        <p class="text-sm font-medium text-gray-700 mb-2">Usage example:</p>
+        <p class="text-sm font-medium text-gray-700 dark:text-gray-300 mb-2">Usage example:</p>
-        <pre class="text-xs text-gray-600 overflow-x-auto">curl -H "Authorization: Bearer <%= @plaintext_token %>" \
+        <pre class="text-xs text-gray-600 dark:text-gray-200 overflow-x-auto">curl -H "Authorization: Bearer <%= @plaintext_token %>" \
      -H "X-Forwarded-Host: your-app.example.com" \
      <%= request.base_url %>/api/verify</pre>
       </div>
 
       <div class="mt-8">
         <%= link_to "Done", api_keys_path,
-            class: "inline-flex justify-center rounded-md border border-transparent bg-blue-600 py-2 px-4 text-sm font-medium text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2" %>
+            class: "inline-flex justify-center rounded-md border border-transparent bg-blue-600 py-2 px-4 text-sm font-medium text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900" %>
       </div>
     </div>
   </div>

app/views/dashboard/index.html.erb

@@ -1,8 +1,8 @@
 <div class="mb-8">
-  <h1 class="text-3xl font-bold text-gray-900">
+  <h1 class="text-3xl font-bold text-gray-900 dark:text-gray-100">
     Welcome, <%= @user.email_address %>
   </h1>
-  <p class="mt-2 text-gray-600">
+  <p class="mt-2 text-gray-600 dark:text-gray-400">
     <% if @user.admin? %>
       Administrator
     <% else %>
@@ -13,34 +13,34 @@
 
 <div class="grid grid-cols-1 gap-6 sm:grid-cols-2 lg:grid-cols-3">
   <!-- Active Sessions Card -->
-  <div class="bg-white overflow-hidden shadow rounded-lg">
+  <div class="bg-white dark:bg-gray-800 overflow-hidden shadow rounded-lg">
     <div class="p-5">
       <div class="flex items-center">
         <div class="flex-shrink-0">
-          <svg class="h-6 w-6 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+          <svg class="h-6 w-6 text-gray-400 dark:text-gray-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
             <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9.75 17L9 20l-1 1h8l-1-1-.75-3M3 13h18M5 17h14a2 2 0 002-2V5a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"></path>
           </svg>
         </div>
         <div class="ml-5 w-0 flex-1">
           <dl>
-            <dt class="text-sm font-medium text-gray-500 truncate">
+            <dt class="text-sm font-medium text-gray-500 dark:text-gray-400 truncate">
               Active Sessions
             </dt>
-            <dd class="text-lg font-semibold text-gray-900">
+            <dd class="text-lg font-semibold text-gray-900 dark:text-gray-100">
               <%= @user.sessions.active.count %>
             </dd>
           </dl>
         </div>
       </div>
     </div>
-    <div class="bg-gray-50 px-5 py-3">
+    <div class="bg-gray-50 dark:bg-gray-700 px-5 py-3">
       <%= link_to "View all sessions", profile_path, class: "text-sm font-medium text-blue-600 hover:text-blue-500" %>
     </div>
   </div>
 
   <% if @user.totp_enabled? %>
     <!-- 2FA Status Card -->
-    <div class="bg-white overflow-hidden shadow rounded-lg">
+    <div class="bg-white dark:bg-gray-800 overflow-hidden shadow rounded-lg">
       <div class="p-5">
         <div class="flex items-center">
           <div class="flex-shrink-0">
@@ -50,7 +50,7 @@
           </div>
           <div class="ml-5 w-0 flex-1">
             <dl>
-              <dt class="text-sm font-medium text-gray-500 truncate">
+              <dt class="text-sm font-medium text-gray-500 dark:text-gray-400 truncate">
                 Two-Factor Authentication
               </dt>
               <dd class="text-lg font-semibold text-green-600">
@@ -60,13 +60,13 @@
           </div>
         </div>
       </div>
-      <div class="bg-gray-50 px-5 py-3">
+      <div class="bg-gray-50 dark:bg-gray-700 px-5 py-3">
         <%= link_to "Manage 2FA", profile_path, class: "text-sm font-medium text-blue-600 hover:text-blue-500" %>
       </div>
     </div>
   <% else %>
     <!-- 2FA Disabled Card -->
-    <div class="bg-white overflow-hidden shadow rounded-lg border-2 border-yellow-200">
+    <div class="bg-white dark:bg-gray-800 overflow-hidden shadow rounded-lg border-2 border-yellow-200">
       <div class="p-5">
         <div class="flex items-center">
           <div class="flex-shrink-0">
@@ -76,7 +76,7 @@
           </div>
           <div class="ml-5 w-0 flex-1">
             <dl>
-              <dt class="text-sm font-medium text-gray-500 truncate">
+              <dt class="text-sm font-medium text-gray-500 dark:text-gray-400 truncate">
                 Two-Factor Authentication
               </dt>
               <dd class="text-lg font-semibold text-yellow-600">
@@ -86,34 +86,34 @@
           </div>
         </div>
       </div>
-      <div class="bg-gray-50 px-5 py-3">
+      <div class="bg-gray-50 dark:bg-gray-700 px-5 py-3">
         <%= link_to "Enable 2FA", profile_path, class: "text-sm font-medium text-blue-600 hover:text-blue-500" %>
       </div>
     </div>
   <% end %>
 
   <!-- API Keys Card -->
-  <div class="bg-white overflow-hidden shadow rounded-lg">
+  <div class="bg-white dark:bg-gray-800 overflow-hidden shadow rounded-lg">
     <div class="p-5">
       <div class="flex items-center">
         <div class="flex-shrink-0">
-          <svg class="h-6 w-6 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+          <svg class="h-6 w-6 text-gray-400 dark:text-gray-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
             <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 7a2 2 0 012 2m4 0a6 6 0 01-7.743 5.743L11 17H9v2H7v2H4a1 1 0 01-1-1v-2.586a1 1 0 01.293-.707l5.964-5.964A6 6 0 1121 9z"></path>
           </svg>
         </div>
         <div class="ml-5 w-0 flex-1">
           <dl>
-            <dt class="text-sm font-medium text-gray-500 truncate">
+            <dt class="text-sm font-medium text-gray-500 dark:text-gray-400 truncate">
               API Keys
             </dt>
-            <dd class="text-lg font-semibold text-gray-900">
+            <dd class="text-lg font-semibold text-gray-900 dark:text-gray-100">
               <%= @user.api_keys.active.count %>
             </dd>
           </dl>
         </div>
       </div>
     </div>
-    <div class="bg-gray-50 px-5 py-3">
+    <div class="bg-gray-50 dark:bg-gray-700 px-5 py-3">
       <%= link_to "Manage API Keys", api_keys_path, class: "text-sm font-medium text-blue-600 hover:text-blue-500" %>
     </div>
   </div>
@@ -121,39 +121,35 @@
 
 <!-- Your Applications Section -->
 <div class="mt-8">
-  <h2 class="text-xl font-semibold text-gray-900 mb-4">Your Applications</h2>
+  <h2 class="text-xl font-semibold text-gray-900 dark:text-gray-100 mb-4">Your Applications</h2>
 
   <% if @applications.any? %>
     <div class="grid grid-cols-1 gap-4 sm:grid-cols-2 lg:grid-cols-3">
       <% @applications.each do |app| %>
-        <div class="bg-white rounded-lg border border-gray-200 shadow-sm hover:shadow-md transition">
+        <div class="bg-white dark:bg-gray-800 rounded-lg border border-gray-200 dark:border-gray-700 shadow-sm hover:shadow-md transition">
           <div class="p-6">
             <div class="flex items-start gap-3 mb-4">
               <% if app.icon.attached? %>
-                <%= image_tag app.icon, class: "h-12 w-12 rounded-lg object-cover border border-gray-200 shrink-0", alt: "#{app.name} icon" %>
+                <%= app_icon_picture app, class: "h-12 w-12 rounded-lg object-cover border border-gray-200 dark:border-gray-700 shrink-0" %>
               <% else %>
-                <div class="h-12 w-12 rounded-lg bg-gray-100 border border-gray-200 flex items-center justify-center shrink-0">
+                <%= render "shared/app_monogram", name: app.name, class: "h-12 w-12 rounded-lg shrink-0" %>
-                  <svg class="h-6 w-6 text-gray-400" fill="none" viewBox="0 0 24 24" stroke="currentColor">
-                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 16l4.586-4.586a2 2 0 012.828 0L16 16m-2-2l1.586-1.586a2 2 0 012.828 0L20 14m-6-6h.01M6 20h12a2 2 0 002-2V6a2 2 0 00-2-2H6a2 2 0 00-2 2v12a2 2 0 002 2z" />
-                  </svg>
-                </div>
               <% end %>
               <div class="flex-1 min-w-0">
                 <div class="flex items-start justify-between">
-                  <h3 class="text-lg font-semibold text-gray-900 truncate">
+                  <h3 class="text-lg font-semibold text-gray-900 dark:text-gray-100 truncate">
                     <%= app.name %>
                   </h3>
                   <span class="ml-2 inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium shrink-0
                     <% if app.oidc? %>
-                      bg-blue-100 text-blue-800
+                      bg-blue-100 dark:bg-blue-900/50 text-blue-800 dark:text-blue-200
                     <% else %>
-                      bg-green-100 text-green-800
+                      bg-green-100 dark:bg-green-900/50 text-green-800 dark:text-green-200
                     <% end %>">
                     <%= app.app_type.humanize %>
                   </span>
                 </div>
                 <% if app.description.present? %>
-                  <p class="text-sm text-gray-600 mt-1 line-clamp-2">
+                  <p class="text-sm text-gray-600 dark:text-gray-400 mt-1 line-clamp-2">
                     <%= app.description %>
                   </p>
                 <% end %>
@@ -165,30 +161,40 @@
                 <%= link_to "Open Application", app.landing_url,
                     target: "_blank",
                     rel: "noopener noreferrer",
-                    class: "w-full flex justify-center items-center px-4 py-2 border border-transparent text-sm font-medium rounded-md text-white bg-blue-600 hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500 transition" %>
+                    class: "w-full flex justify-center items-center px-4 py-2 border border-transparent text-sm font-medium rounded-md text-white bg-blue-600 hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-offset-2 dark:focus:ring-offset-gray-900 focus:ring-blue-500 transition" %>
               <% else %>
-                <div class="text-sm text-gray-500 italic">
+                <div class="text-sm text-gray-500 dark:text-gray-400 italic">
                   No landing URL configured
                 </div>
               <% end %>
 
               <% if app.user_has_active_session?(@user) %>
                 <%= button_to "Require Re-Auth", logout_from_app_active_sessions_path(application_id: app.id), method: :delete,
-                    class: "w-full flex justify-center items-center px-4 py-2 border border-orange-300 text-sm font-medium rounded-md text-orange-700 bg-white hover:bg-orange-50 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-orange-500 transition",
+                    class: "w-full flex justify-center items-center px-4 py-2 border border-orange-300 text-sm font-medium rounded-md text-orange-700 bg-white dark:bg-gray-700 dark:ring-gray-600 dark:text-gray-200 hover:bg-orange-50 focus:outline-none focus:ring-2 focus:ring-offset-2 dark:focus:ring-offset-gray-900 focus:ring-orange-500 transition",
                     form: { data: { turbo_confirm: "This will revoke #{app.name}'s access tokens. The next time #{app.name} needs to authenticate, you'll sign in again (no re-authorization needed). Continue?" } } %>
               <% end %>
+
+              <% if @user.admin? %>
+                <div class="flex gap-2 mt-1">
+                  <%= link_to "View", admin_application_path(app),
+                      class: "text-sm font-medium text-gray-600 dark:text-gray-400 hover:text-blue-600 transition" %>
+                  <span class="text-gray-300 dark:text-gray-600">|</span>
+                  <%= link_to "Edit", edit_admin_application_path(app),
+                      class: "text-sm font-medium text-gray-600 dark:text-gray-400 hover:text-blue-600 transition" %>
+                </div>
+              <% end %>
             </div>
           </div>
         </div>
       <% end %>
     </div>
   <% else %>
-    <div class="bg-gray-50 rounded-lg border border-gray-200 p-8 text-center">
+    <div class="bg-gray-50 dark:bg-gray-800 rounded-lg border border-gray-200 dark:border-gray-700 p-8 text-center">
-      <svg class="mx-auto h-12 w-12 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+      <svg class="mx-auto h-12 w-12 text-gray-400 dark:text-gray-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
         <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 11H5m14 0a2 2 0 012 2v6a2 2 0 01-2 2H5a2 2 0 01-2-2v-6a2 2 0 012-2m14 0V9a2 2 0 00-2-2M5 11V9a2 2 0 012-2m0 0V5a2 2 0 012-2h6a2 2 0 012 2v2M7 7h10"></path>
       </svg>
-      <h3 class="mt-4 text-lg font-medium text-gray-900">No applications available</h3>
+      <h3 class="mt-4 text-lg font-medium text-gray-900 dark:text-gray-100">No applications available</h3>
-      <p class="mt-2 text-sm text-gray-500">
+      <p class="mt-2 text-sm text-gray-500 dark:text-gray-400">
         You don't have access to any applications yet. Contact your administrator if you think this is an error.
       </p>
     </div>
@@ -197,21 +203,21 @@
 
 <% if @user.admin? %>
   <div class="mt-8">
-    <h2 class="text-xl font-semibold text-gray-900 mb-4">Admin Quick Actions</h2>
+    <h2 class="text-xl font-semibold text-gray-900 dark:text-gray-100 mb-4">Admin Quick Actions</h2>
     <div class="grid grid-cols-1 gap-4 sm:grid-cols-3">
-      <%= link_to admin_users_path, class: "block p-6 bg-white rounded-lg border border-gray-200 shadow-sm hover:bg-gray-50 hover:shadow-md transition" do %>
+      <%= link_to admin_users_path, class: "block p-6 bg-white dark:bg-gray-800 rounded-lg border border-gray-200 dark:border-gray-700 shadow-sm hover:bg-gray-50 dark:hover:bg-gray-700 hover:shadow-md transition" do %>
-        <h3 class="text-lg font-semibold text-gray-900 mb-2">Manage Users</h3>
+        <h3 class="text-lg font-semibold text-gray-900 dark:text-gray-100 mb-2">Manage Users</h3>
-        <p class="text-sm text-gray-600">View, edit, and invite users</p>
+        <p class="text-sm text-gray-600 dark:text-gray-400">View, edit, and invite users</p>
       <% end %>
 
-      <%= link_to admin_applications_path, class: "block p-6 bg-white rounded-lg border border-gray-200 shadow-sm hover:bg-gray-50 hover:shadow-md transition" do %>
+      <%= link_to admin_applications_path, class: "block p-6 bg-white dark:bg-gray-800 rounded-lg border border-gray-200 dark:border-gray-700 shadow-sm hover:bg-gray-50 dark:hover:bg-gray-700 hover:shadow-md transition" do %>
-        <h3 class="text-lg font-semibold text-gray-900 mb-2">Manage Applications</h3>
+        <h3 class="text-lg font-semibold text-gray-900 dark:text-gray-100 mb-2">Manage Applications</h3>
-        <p class="text-sm text-gray-600">Register and configure applications</p>
+        <p class="text-sm text-gray-600 dark:text-gray-400">Register and configure applications</p>
       <% end %>
 
-      <%= link_to admin_groups_path, class: "block p-6 bg-white rounded-lg border border-gray-200 shadow-sm hover:bg-gray-50 hover:shadow-md transition" do %>
+      <%= link_to admin_groups_path, class: "block p-6 bg-white dark:bg-gray-800 rounded-lg border border-gray-200 dark:border-gray-700 shadow-sm hover:bg-gray-50 dark:hover:bg-gray-700 hover:shadow-md transition" do %>
-        <h3 class="text-lg font-semibold text-gray-900 mb-2">Manage Groups</h3>
+        <h3 class="text-lg font-semibold text-gray-900 dark:text-gray-100 mb-2">Manage Groups</h3>
-        <p class="text-sm text-gray-600">Create and organize user groups</p>
+        <p class="text-sm text-gray-600 dark:text-gray-400">Create and organize user groups</p>
       <% end %>
     </div>
   </div>

app/views/invitations/show.html.erb

@@ -4,15 +4,15 @@
   <% end %>
 
   <h1 class="font-bold text-4xl">Welcome to Clinch!</h1>
-  <p class="mt-2 text-gray-600">You've been invited to join Clinch. Please create your password to complete your account setup.</p>
+  <p class="mt-2 text-gray-600 dark:text-gray-400">You've been invited to join Clinch. Please create your password to complete your account setup.</p>
 
   <%= form_with url: invitation_path(params[:token]), method: :put, class: "contents" do |form| %>
     <div class="my-5">
-      <%= form.password_field :password, required: true, autocomplete: "new-password", placeholder: "Enter your password", maxlength: 72, class: "block shadow-sm rounded-md border border-gray-400 focus:outline-solid focus:outline-blue-600 px-3 py-2 mt-2 w-full" %>
+      <%= form.password_field :password, required: true, autocomplete: "new-password", placeholder: "Enter your password", maxlength: 72, class: "block shadow-sm rounded-md border border-gray-400 focus:outline-solid focus:outline-blue-600 px-3 py-2 mt-2 w-full dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100" %>
     </div>
 
     <div class="my-5">
-      <%= form.password_field :password_confirmation, required: true, autocomplete: "new-password", placeholder: "Confirm your password", maxlength: 72, class: "block shadow-sm rounded-md border border-gray-400 focus:outline-solid focus:outline-blue-600 px-3 py-2 mt-2 w-full" %>
+      <%= form.password_field :password_confirmation, required: true, autocomplete: "new-password", placeholder: "Confirm your password", maxlength: 72, class: "block shadow-sm rounded-md border border-gray-400 focus:outline-solid focus:outline-blue-600 px-3 py-2 mt-2 w-full dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100" %>
     </div>
 
     <div class="inline">

app/views/invitations_mailer/invite_user.text.erb

@@ -1,8 +1,8 @@
 You've been invited to join Clinch!
 
 To set up your account and create your password, please visit:
-#{invite_url(@user.invitation_login_token)}
+<%= invitation_url(@user.generate_token_for(:invitation_login)) %>
 
-This invitation link will expire in #{distance_of_time_in_words(0, @user.invitation_login_token_expires_in)}.
+This invitation link will expire in 24 hours.
 
 If you didn't expect this invitation, you can safely ignore this email.

app/views/layouts/application.html.erb

@@ -9,6 +9,15 @@
     <%= csrf_meta_tags %>
     <%= csp_meta_tag %>
 
+    <script>
+      (function() {
+        var theme = localStorage.getItem('theme');
+        if (theme === 'dark' || (!theme && window.matchMedia('(prefers-color-scheme: dark)').matches)) {
+          document.documentElement.classList.add('dark');
+        }
+      })();
+    </script>
+
     <%= yield :head %>
 
     <%# Enable PWA manifest for installable apps (make sure to enable in config/routes.rb too!) %>
@@ -23,15 +32,15 @@
     <%= javascript_importmap_tags %>
   </head>
 
-  <body>
+  <body class="dark:bg-gray-900 dark:text-gray-100">
     <% if authenticated? %>
       <div data-controller="mobile-sidebar">
         <%= render "shared/sidebar" %>
         <div class="lg:pl-64">
           <!-- Mobile menu button -->
-          <div class="sticky top-0 z-40 flex h-16 shrink-0 items-center gap-x-4 border-b border-gray-200 bg-white px-4 shadow-sm sm:gap-x-6 sm:px-6 lg:hidden">
+          <div class="sticky top-0 z-40 flex h-16 shrink-0 items-center gap-x-4 border-b border-gray-200 dark:border-gray-700 bg-white dark:bg-gray-900 px-4 shadow-sm sm:gap-x-6 sm:px-6 lg:hidden">
             <button type="button"
-                    class="-m-2.5 p-2.5 text-gray-700"
+                    class="-m-2.5 p-2.5 text-gray-700 dark:text-gray-300"
                     id="mobile-menu-button"
                     data-action="click->mobile-sidebar#openSidebar">
               <span class="sr-only">Open sidebar</span>
@@ -51,6 +60,16 @@
       </div>
     <% else %>
       <!-- Public layout (signup/signin) -->
+      <div class="absolute top-4 right-4" data-controller="dark-mode">
+        <button type="button" data-action="click->dark-mode#toggle" class="rounded-lg p-2 text-gray-500 hover:bg-gray-100 dark:text-gray-400 dark:hover:bg-gray-800">
+          <svg data-dark-mode-target="icon" data-mode="light" class="h-5 w-5" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
+            <path stroke-linecap="round" stroke-linejoin="round" d="M21.752 15.002A9.72 9.72 0 0118 15.75c-5.385 0-9.75-4.365-9.75-9.75 0-1.33.266-2.597.748-3.752A9.753 9.753 0 003 11.25C3 16.635 7.365 21 12.75 21a9.753 9.753 0 009.002-5.998z" />
+          </svg>
+          <svg data-dark-mode-target="icon" data-mode="dark" class="hidden h-5 w-5" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
+            <path stroke-linecap="round" stroke-linejoin="round" d="M12 3v2.25m6.364.386l-1.591 1.591M21 12h-2.25m-.386 6.364l-1.591-1.591M12 18.75V21m-4.773-4.227l-1.591 1.591M5.25 12H3m4.227-4.773L5.636 5.636M15.75 12a3.75 3.75 0 11-7.5 0 3.75 3.75 0 017.5 0z" />
+          </svg>
+        </button>
+      </div>
       <main class="container mx-auto mt-28 px-5">
         <%= render "shared/flash" %>
         <%= yield %>

app/views/oidc/consent.html.erb

@@ -1,30 +1,30 @@
 <div class="mx-auto max-w-md">
-  <div class="bg-white py-8 px-6 shadow rounded-lg sm:px-10">
+  <div class="bg-white dark:bg-gray-800 py-8 px-6 shadow rounded-lg sm:px-10">
     <div class="mb-8 text-center">
       <% if @application.icon.attached? %>
-        <%= image_tag @application.icon, class: "mx-auto h-20 w-20 rounded-xl object-cover border-2 border-gray-200 shadow-sm mb-4", alt: "#{@application.name} icon" %>
+        <div class="mx-auto h-20 w-20 mb-4">
+          <%= app_icon_picture @application, class: "mx-auto h-20 w-20 rounded-xl object-cover border-2 border-gray-200 dark:border-gray-700 shadow-sm" %>
+        </div>
       <% else %>
-        <div class="mx-auto h-20 w-20 rounded-xl bg-gray-100 border-2 border-gray-200 flex items-center justify-center mb-4">
+        <div class="mx-auto mb-4">
-          <svg class="h-10 w-10 text-gray-400" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+          <%= render "shared/app_monogram", name: @application.name, class: "h-20 w-20 rounded-xl shadow-sm" %>
-            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 16l4.586-4.586a2 2 0 012.828 0L16 16m-2-2l1.586-1.586a2 2 0 012.828 0L20 14m-6-6h.01M6 20h12a2 2 0 002-2V6a2 2 0 00-2-2H6a2 2 0 00-2 2v12a2 2 0 002 2z" />
-          </svg>
         </div>
       <% end %>
-      <h2 class="text-2xl font-bold text-gray-900">Authorize Application</h2>
+      <h2 class="text-2xl font-bold text-gray-900 dark:text-gray-100">Authorize Application</h2>
-      <p class="mt-2 text-sm text-gray-600">
+      <p class="mt-2 text-sm text-gray-600 dark:text-gray-400">
         <strong><%= @application.name %></strong> is requesting access to your account.
       </p>
     </div>
 
     <div class="mb-6">
-      <h3 class="text-sm font-medium text-gray-900 mb-3">This application will be able to:</h3>
+      <h3 class="text-sm font-medium text-gray-900 dark:text-gray-100 mb-3">This application will be able to:</h3>
       <ul class="space-y-2">
         <% if @scopes.include?("openid") %>
           <li class="flex items-start">
             <svg class="h-5 w-5 text-green-500 mr-2 flex-shrink-0" fill="currentColor" viewBox="0 0 20 20">
               <path fill-rule="evenodd" d="M10 18a8 8 0 100-16 8 8 0 000 16zm3.707-9.293a1 1 0 00-1.414-1.414L9 10.586 7.707 9.293a1 1 0 00-1.414 1.414l2 2a1 1 0 001.414 0l4-4z" clip-rule="evenodd"/>
             </svg>
-            <span class="text-sm text-gray-700">Verify your identity</span>
+            <span class="text-sm text-gray-700 dark:text-gray-300">Verify your identity</span>
           </li>
         <% end %>
         <% if @scopes.include?("email") %>
@@ -32,7 +32,7 @@
             <svg class="h-5 w-5 text-green-500 mr-2 flex-shrink-0" fill="currentColor" viewBox="0 0 20 20">
               <path fill-rule="evenodd" d="M10 18a8 8 0 100-16 8 8 0 000 16zm3.707-9.293a1 1 0 00-1.414-1.414L9 10.586 7.707 9.293a1 1 0 00-1.414 1.414l2 2a1 1 0 001.414 0l4-4z" clip-rule="evenodd"/>
             </svg>
-            <span class="text-sm text-gray-700">Access your email address (<%= Current.session.user.email_address %>)</span>
+            <span class="text-sm text-gray-700 dark:text-gray-300">Access your email address (<%= Current.session.user.email_address %>)</span>
           </li>
         <% end %>
         <% if @scopes.include?("profile") %>
@@ -40,7 +40,7 @@
             <svg class="h-5 w-5 text-green-500 mr-2 flex-shrink-0" fill="currentColor" viewBox="0 0 20 20">
               <path fill-rule="evenodd" d="M10 18a8 8 0 100-16 8 8 0 000 16zm3.707-9.293a1 1 0 00-1.414-1.414L9 10.586 7.707 9.293a1 1 0 00-1.414 1.414l2 2a1 1 0 001.414 0l4-4z" clip-rule="evenodd"/>
             </svg>
-            <span class="text-sm text-gray-700">Access your profile information</span>
+            <span class="text-sm text-gray-700 dark:text-gray-300">Access your profile information</span>
           </li>
         <% end %>
         <% if @scopes.include?("groups") %>
@@ -48,18 +48,18 @@
             <svg class="h-5 w-5 text-green-500 mr-2 flex-shrink-0" fill="currentColor" viewBox="0 0 20 20">
               <path fill-rule="evenodd" d="M10 18a8 8 0 100-16 8 8 0 000 16zm3.707-9.293a1 1 0 00-1.414-1.414L9 10.586 7.707 9.293a1 1 0 00-1.414 1.414l2 2a1 1 0 001.414 0l4-4z" clip-rule="evenodd"/>
             </svg>
-            <span class="text-sm text-gray-700">Access your group memberships</span>
+            <span class="text-sm text-gray-700 dark:text-gray-300">Access your group memberships</span>
           </li>
         <% end %>
       </ul>
     </div>
 
-    <div class="rounded-md bg-blue-50 p-4 mb-6">
+    <div class="rounded-md bg-blue-50 dark:bg-blue-900/30 p-4 mb-6">
       <div class="flex">
         <svg class="h-5 w-5 text-blue-400 mr-3 flex-shrink-0" viewBox="0 0 20 20" fill="currentColor">
           <path fill-rule="evenodd" d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a1 1 0 000 2v3a1 1 0 001 1h1a1 1 0 100-2v-3a1 1 0 00-1-1H9z" clip-rule="evenodd"/>
         </svg>
-        <div class="text-sm text-blue-700">
+        <div class="text-sm text-blue-700 dark:text-blue-300">
           <p>You'll be redirected to:</p>
           <p class="mt-1 font-mono text-xs break-all"><%= @redirect_uri %></p>
         </div>
@@ -68,13 +68,13 @@
 
     <%= form_with url: "/oauth/authorize/consent", method: :post, class: "space-y-3", data: { turbo: false }, local: true do |form| %>
       <%= form.submit "Authorize",
-          class: "w-full flex justify-center py-2 px-4 border border-transparent rounded-md shadow-sm text-sm font-medium text-white bg-blue-600 hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500" %>
+          class: "w-full flex justify-center py-2 px-4 border border-transparent rounded-md shadow-sm text-sm font-medium text-white bg-blue-600 hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-offset-2 dark:focus:ring-offset-gray-900 focus:ring-blue-500" %>
 
       <%= button_tag "Deny",
           type: :submit,
           name: :deny,
           value: "1",
-          class: "w-full flex justify-center py-2 px-4 border border-gray-300 rounded-md shadow-sm text-sm font-medium text-gray-700 bg-white hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500" %>
+          class: "w-full flex justify-center py-2 px-4 border border-gray-300 dark:border-gray-600 rounded-md shadow-sm text-sm font-medium text-gray-700 dark:text-gray-200 bg-white dark:bg-gray-700 dark:ring-gray-600 hover:bg-gray-50 dark:hover:bg-gray-800 focus:outline-none focus:ring-2 focus:ring-offset-2 dark:focus:ring-offset-gray-900 focus:ring-blue-500" %>
     <% end %>
   </div>
 </div>

app/views/passwords/edit.html.erb

@@ -7,11 +7,11 @@
 
   <%= form_with url: password_path(params[:token]), method: :put, class: "contents" do |form| %>
     <div class="my-5">
-      <%= form.password_field :password, required: true, autocomplete: "new-password", placeholder: "Enter new password", maxlength: 72, class: "block shadow-sm rounded-md border border-gray-400 focus:outline-solid focus:outline-blue-600 px-3 py-2 mt-2 w-full" %>
+      <%= form.password_field :password, required: true, autocomplete: "new-password", placeholder: "Enter new password", maxlength: 72, class: "block shadow-sm rounded-md border border-gray-400 focus:outline-solid focus:outline-blue-600 px-3 py-2 mt-2 w-full dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100" %>
     </div>
 
     <div class="my-5">
-      <%= form.password_field :password_confirmation, required: true, autocomplete: "new-password", placeholder: "Repeat new password", maxlength: 72, class: "block shadow-sm rounded-md border border-gray-400 focus:outline-solid focus:outline-blue-600 px-3 py-2 mt-2 w-full" %>
+      <%= form.password_field :password_confirmation, required: true, autocomplete: "new-password", placeholder: "Repeat new password", maxlength: 72, class: "block shadow-sm rounded-md border border-gray-400 focus:outline-solid focus:outline-blue-600 px-3 py-2 mt-2 w-full dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100" %>
     </div>
 
     <div class="inline">

app/views/passwords/new.html.erb

@@ -7,7 +7,7 @@
 
   <%= form_with url: passwords_path, class: "contents", data: { controller: "form-errors" } do |form| %>
     <div class="my-5">
-      <%= form.email_field :email_address, required: true, autofocus: true, autocomplete: "username", placeholder: "Enter your email address", value: params[:email_address], class: "block shadow-sm rounded-md border border-gray-400 focus:outline-solid focus:outline-blue-600 px-3 py-2 mt-2 w-full" %>
+      <%= form.email_field :email_address, required: true, autofocus: true, autocomplete: "username", placeholder: "Enter your email address", value: params[:email_address], class: "block shadow-sm rounded-md border border-gray-400 focus:outline-solid focus:outline-blue-600 px-3 py-2 mt-2 w-full dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100" %>
     </div>
 
     <div class="inline">

app/views/passwords_mailer/reset.html.erb

@@ -1,6 +1,6 @@
 <p>
   You can reset your password on
-  <%= link_to "this password reset page", edit_password_url(@user.password_reset_token) %>.
+  <%= link_to "this password reset page", edit_password_url(@user.generate_token_for(:password_reset)) %>.
 
-  This link will expire in <%= distance_of_time_in_words(0, @user.password_reset_token_expires_in) %>.
+  This link will expire in 1 hour.
 </p>

app/views/passwords_mailer/reset.text.erb

@@ -1,4 +1,4 @@
 You can reset your password on
-<%= edit_password_url(@user.password_reset_token) %>
+<%= edit_password_url(@user.generate_token_for(:password_reset)) %>
 
-This link will expire in <%= distance_of_time_in_words(0, @user.password_reset_token_expires_in) %>.
+This link will expire in 1 hour.

app/views/profiles/show.html.erb

@@ -1,21 +1,21 @@
 <div class="space-y-8" data-controller="modal">
   <div>
-    <h1 class="text-3xl font-bold text-gray-900">Account Security</h1>
+    <h1 class="text-3xl font-bold text-gray-900 dark:text-gray-100">Account Security</h1>
-    <p class="mt-2 text-sm text-gray-600">Manage your account settings, active sessions, and connected applications.</p>
+    <p class="mt-2 text-sm text-gray-600 dark:text-gray-400">Manage your account settings, active sessions, and connected applications.</p>
   </div>
 
   <!-- Account Information -->
-  <div class="bg-white shadow sm:rounded-lg">
+  <div class="bg-white dark:bg-gray-800 shadow sm:rounded-lg">
     <div class="px-4 py-5 sm:p-6">
-      <h3 class="text-lg font-medium leading-6 text-gray-900">Account Information</h3>
+      <h3 class="text-lg font-medium leading-6 text-gray-900 dark:text-gray-100">Account Information</h3>
       <div class="mt-5 space-y-6">
         <%= form_with model: @user, url: profile_path, method: :patch, class: "space-y-6" do |form| %>
           <% if @user.errors.any? %>
-            <div class="rounded-md bg-red-50 p-4">
+            <div class="rounded-md bg-red-50 dark:bg-red-900/30 p-4">
-              <h3 class="text-sm font-medium text-red-800">
+              <h3 class="text-sm font-medium text-red-800 dark:text-red-200">
                 <%= pluralize(@user.errors.count, "error") %> prohibited this from being saved:
               </h3>
-              <ul class="mt-2 list-disc list-inside text-sm text-red-700">
+              <ul class="mt-2 list-disc list-inside text-sm text-red-700 dark:text-red-300">
                 <% @user.errors.each do |error| %>
                   <li><%= error.full_message %></li>
                 <% end %>
@@ -24,24 +24,24 @@
           <% end %>
 
           <div>
-            <%= form.label :email_address, "Email Address", class: "block text-sm font-medium text-gray-700" %>
+            <%= form.label :email_address, "Email Address", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
             <%= form.email_field :email_address,
                 required: true,
                 autocomplete: "email",
-                class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm" %>
+                class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm" %>
           </div>
 
           <div>
-            <%= form.label :current_password, "Current Password", class: "block text-sm font-medium text-gray-700" %>
+            <%= form.label :current_password, "Current Password", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
             <%= form.password_field :current_password,
                 autocomplete: "current-password",
                 placeholder: "Required to change email",
-                class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm" %>
+                class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm" %>
-            <p class="mt-1 text-sm text-gray-500">Enter your current password to confirm this change</p>
+            <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">Enter your current password to confirm this change</p>
           </div>
 
           <div>
-            <%= form.submit "Update Email", class: "inline-flex justify-center rounded-md border border-transparent bg-blue-600 py-2 px-4 text-sm font-medium text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2" %>
+            <%= form.submit "Update Email", class: "inline-flex justify-center rounded-md border border-transparent bg-blue-600 py-2 px-4 text-sm font-medium text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900" %>
           </div>
         <% end %>
       </div>
@@ -49,38 +49,38 @@
   </div>
 
   <!-- Change Password -->
-  <div class="bg-white shadow sm:rounded-lg">
+  <div class="bg-white dark:bg-gray-800 shadow sm:rounded-lg">
     <div class="px-4 py-5 sm:p-6">
-      <h3 class="text-lg font-medium leading-6 text-gray-900">Change Password</h3>
+      <h3 class="text-lg font-medium leading-6 text-gray-900 dark:text-gray-100">Change Password</h3>
       <div class="mt-5">
         <%= form_with model: @user, url: profile_path, method: :patch, class: "space-y-6" do |form| %>
           <div>
-            <%= form.label :current_password, "Current Password", class: "block text-sm font-medium text-gray-700" %>
+            <%= form.label :current_password, "Current Password", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
             <%= form.password_field :current_password,
                 autocomplete: "current-password",
                 placeholder: "Enter current password",
-                class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm" %>
+                class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm" %>
           </div>
 
           <div>
-            <%= form.label :password, "New Password", class: "block text-sm font-medium text-gray-700" %>
+            <%= form.label :password, "New Password", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
             <%= form.password_field :password,
                 autocomplete: "new-password",
                 placeholder: "Enter new password",
-                class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm" %>
+                class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm" %>
-            <p class="mt-1 text-sm text-gray-500">Must be at least 8 characters</p>
+            <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">Must be at least 8 characters</p>
           </div>
 
           <div>
-            <%= form.label :password_confirmation, "Confirm New Password", class: "block text-sm font-medium text-gray-700" %>
+            <%= form.label :password_confirmation, "Confirm New Password", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
             <%= form.password_field :password_confirmation,
                 autocomplete: "new-password",
                 placeholder: "Confirm new password",
-                class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm" %>
+                class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm" %>
           </div>
 
           <div>
-            <%= form.submit "Update Password", class: "inline-flex justify-center rounded-md border border-transparent bg-blue-600 py-2 px-4 text-sm font-medium text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2" %>
+            <%= form.submit "Update Password", class: "inline-flex justify-center rounded-md border border-transparent bg-blue-600 py-2 px-4 text-sm font-medium text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900" %>
           </div>
         <% end %>
       </div>
@@ -88,15 +88,15 @@
   </div>
 
   <!-- Two-Factor Authentication -->
-  <div class="bg-white shadow sm:rounded-lg">
+  <div class="bg-white dark:bg-gray-800 shadow sm:rounded-lg">
     <div class="px-4 py-5 sm:p-6">
-      <h3 class="text-lg font-medium leading-6 text-gray-900">Two-Factor Authentication</h3>
+      <h3 class="text-lg font-medium leading-6 text-gray-900 dark:text-gray-100">Two-Factor Authentication</h3>
-      <div class="mt-2 max-w-xl text-sm text-gray-500">
+      <div class="mt-2 max-w-xl text-sm text-gray-500 dark:text-gray-400">
         <p>Add an extra layer of security to your account by enabling two-factor authentication.</p>
       </div>
       <div class="mt-5">
         <% if @user.totp_enabled? %>
-          <div class="rounded-md bg-green-50 p-4">
+          <div class="rounded-md bg-green-50 dark:bg-green-900/30 p-4">
             <div class="flex">
               <div class="flex-shrink-0">
                 <svg class="h-5 w-5 text-green-400" viewBox="0 0 20 20" fill="currentColor">
@@ -104,11 +104,11 @@
                 </svg>
               </div>
               <div class="ml-3 flex-1">
-                <p class="text-sm font-medium text-green-800">
+                <p class="text-sm font-medium text-green-800 dark:text-green-200">
                   Two-factor authentication is enabled
                 </p>
                 <% if @user.totp_required? %>
-                  <p class="mt-1 text-sm text-green-700">
+                  <p class="mt-1 text-sm text-green-700 dark:text-green-300">
                     <svg class="inline h-4 w-4" fill="currentColor" viewBox="0 0 20 20">
                       <path fill-rule="evenodd" d="M5 9V7a5 5 0 0110 0v2a2 2 0 012 2v5a2 2 0 01-2 2H5a2 2 0 01-2-2v-5a2 2 0 012-2zm8-2v2H7V7a3 3 0 016 0z" clip-rule="evenodd" />
                     </svg>
@@ -119,12 +119,12 @@
             </div>
           </div>
           <% if @user.totp_required? %>
-            <div class="mt-4 rounded-md bg-blue-50 p-4">
+            <div class="mt-4 rounded-md bg-blue-50 dark:bg-blue-900/30 p-4">
               <div class="flex">
                 <svg class="h-5 w-5 text-blue-400 mr-2 flex-shrink-0" viewBox="0 0 20 20" fill="currentColor">
                   <path fill-rule="evenodd" d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a1 1 0 000 2v3a1 1 0 001 1h1a1 1 0 100-2v-3a1 1 0 00-1-1H9z" clip-rule="evenodd" />
                 </svg>
-                <p class="text-sm text-blue-800">
+                <p class="text-sm text-blue-800 dark:text-blue-200">
                   Your administrator requires two-factor authentication. You cannot disable it.
                 </p>
               </div>
@@ -133,7 +133,7 @@
               <button type="button"
                       data-action="click->modal#show"
                       data-modal-id="view-backup-codes-modal"
-                      class="inline-flex items-center rounded-md border border-gray-300 bg-white px-4 py-2 text-sm font-medium text-gray-700 shadow-sm hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2">
+                      class="inline-flex items-center rounded-md border border-gray-300 dark:border-gray-600 bg-white dark:bg-gray-700 px-4 py-2 text-sm font-medium text-gray-700 dark:text-gray-200 shadow-sm hover:bg-gray-50 dark:hover:bg-gray-800 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900">
                 View Backup Codes
               </button>
             </div>
@@ -142,19 +142,19 @@
               <button type="button"
                       data-action="click->modal#show"
                       data-modal-id="disable-2fa-modal"
-                      class="inline-flex items-center rounded-md border border-red-300 bg-white px-4 py-2 text-sm font-medium text-red-700 shadow-sm hover:bg-red-50 focus:outline-none focus:ring-2 focus:ring-red-500 focus:ring-offset-2">
+                      class="inline-flex items-center rounded-md border border-red-300 bg-white dark:bg-gray-700 px-4 py-2 text-sm font-medium text-red-700 shadow-sm hover:bg-red-50 focus:outline-none focus:ring-2 focus:ring-red-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900">
                 Disable 2FA
               </button>
               <button type="button"
                       data-action="click->modal#show"
                       data-modal-id="view-backup-codes-modal"
-                      class="inline-flex items-center rounded-md border border-gray-300 bg-white px-4 py-2 text-sm font-medium text-gray-700 shadow-sm hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2">
+                      class="inline-flex items-center rounded-md border border-gray-300 dark:border-gray-600 bg-white dark:bg-gray-700 px-4 py-2 text-sm font-medium text-gray-700 dark:text-gray-200 shadow-sm hover:bg-gray-50 dark:hover:bg-gray-800 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900">
                 View Backup Codes
               </button>
             </div>
           <% end %>
         <% else %>
-          <%= link_to new_totp_path, class: "inline-flex items-center rounded-md border border-transparent bg-blue-600 px-4 py-2 text-sm font-medium text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2" do %>
+          <%= link_to new_totp_path, class: "inline-flex items-center rounded-md border border-transparent bg-blue-600 px-4 py-2 text-sm font-medium text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900" do %>
             Enable 2FA
           <% end %>
         <% end %>
@@ -166,17 +166,17 @@
   <div id="disable-2fa-modal"
        data-action="click->modal#closeOnBackdrop keyup@window->modal#closeOnEscape"
        class="hidden fixed inset-0 bg-gray-500 bg-opacity-75 flex items-center justify-center z-50">
-    <div class="bg-white rounded-lg px-4 pt-5 pb-4 shadow-xl max-w-md w-full">
+    <div class="bg-white dark:bg-gray-800 rounded-lg px-4 pt-5 pb-4 shadow-xl max-w-md w-full">
       <div class="sm:flex sm:items-start">
-        <div class="mx-auto flex h-12 w-12 flex-shrink-0 items-center justify-center rounded-full bg-red-100 sm:mx-0 sm:h-10 sm:w-10">
+        <div class="mx-auto flex h-12 w-12 flex-shrink-0 items-center justify-center rounded-full bg-red-100 dark:bg-red-900/50 sm:mx-0 sm:h-10 sm:w-10">
           <svg class="h-6 w-6 text-red-600" fill="none" viewBox="0 0 24 24" stroke="currentColor">
             <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z" />
           </svg>
         </div>
         <div class="mt-3 text-center sm:mt-0 sm:ml-4 sm:text-left flex-1">
-          <h3 class="text-lg font-medium leading-6 text-gray-900">Disable Two-Factor Authentication</h3>
+          <h3 class="text-lg font-medium leading-6 text-gray-900 dark:text-gray-100">Disable Two-Factor Authentication</h3>
           <div class="mt-2">
-            <p class="text-sm text-gray-500">Enter your password to disable 2FA. This will make your account less secure.</p>
+            <p class="text-sm text-gray-500 dark:text-gray-400">Enter your password to disable 2FA. This will make your account less secure.</p>
           </div>
           <%= form_with url: totp_path, method: :delete, class: "mt-4" do |form| %>
             <div>
@@ -184,14 +184,14 @@
                   placeholder: "Enter your password",
                   autocomplete: "current-password",
                   required: true,
-                  class: "block w-full rounded-md border-gray-300 shadow-sm focus:border-red-500 focus:ring-red-500 sm:text-sm" %>
+                  class: "block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-red-500 focus:ring-red-500 sm:text-sm" %>
             </div>
             <div class="mt-4 flex gap-3">
               <%= form.submit "Disable 2FA",
-                  class: "inline-flex justify-center rounded-md border border-transparent bg-red-600 px-4 py-2 text-sm font-medium text-white shadow-sm hover:bg-red-700 focus:outline-none focus:ring-2 focus:ring-red-500 focus:ring-offset-2" %>
+                  class: "inline-flex justify-center rounded-md border border-transparent bg-red-600 px-4 py-2 text-sm font-medium text-white shadow-sm hover:bg-red-700 focus:outline-none focus:ring-2 focus:ring-red-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900" %>
               <button type="button"
                       data-action="click->modal#hide"
-                      class="inline-flex justify-center rounded-md border border-gray-300 bg-white px-4 py-2 text-sm font-medium text-gray-700 shadow-sm hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2">
+                      class="inline-flex justify-center rounded-md border border-gray-300 dark:border-gray-600 bg-white dark:bg-gray-700 px-4 py-2 text-sm font-medium text-gray-700 dark:text-gray-200 shadow-sm hover:bg-gray-50 dark:hover:bg-gray-800 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900">
                 Cancel
               </button>
             </div>
@@ -205,18 +205,18 @@
   <div id="view-backup-codes-modal"
        data-action="click->modal#closeOnBackdrop keyup@window->modal#closeOnEscape"
        class="hidden fixed inset-0 bg-gray-500 bg-opacity-75 flex items-center justify-center z-50">
-    <div class="bg-white rounded-lg px-4 pt-5 pb-4 shadow-xl max-w-md w-full">
+    <div class="bg-white dark:bg-gray-800 rounded-lg px-4 pt-5 pb-4 shadow-xl max-w-md w-full">
       <div>
-        <h3 class="text-lg font-medium leading-6 text-gray-900">Generate New Backup Codes</h3>
+        <h3 class="text-lg font-medium leading-6 text-gray-900 dark:text-gray-100">Generate New Backup Codes</h3>
         <div class="mt-2">
-          <p class="text-sm text-gray-500">Due to security improvements, you need to generate new backup codes. Your old codes have been invalidated.</p>
+          <p class="text-sm text-gray-500 dark:text-gray-400">Due to security improvements, you need to generate new backup codes. Your old codes have been invalidated.</p>
         </div>
-        <div class="mt-3 p-3 bg-yellow-50 rounded-md">
+        <div class="mt-3 p-3 bg-yellow-50 dark:bg-yellow-900/30 rounded-md">
           <div class="flex">
             <svg class="h-5 w-5 text-yellow-400 mr-2 flex-shrink-0" viewBox="0 0 20 20" fill="currentColor">
               <path fill-rule="evenodd" d="M8.485 2.495c.673-1.167 2.357-1.167 3.03 0l6.28 10.875c.673 1.167-.17 2.625-1.516 2.625H3.72c-1.347 0-2.189-1.458-1.515-2.625L8.485 2.495zM10 5a.75.75 0 01.75.75v3.5a.75.75 0 01-1.5 0v-3.5A.75.75 0 0110 5zm0 9a1 1 0 100-2 1 1 0 000 2z" clip-rule="evenodd" />
             </svg>
-            <p class="text-sm text-yellow-800">
+            <p class="text-sm text-yellow-800 dark:text-yellow-200">
               <strong>Important:</strong> Save the new codes immediately after generation. You won't be able to see them again without regenerating.
             </p>
           </div>
@@ -227,14 +227,14 @@
                 placeholder: "Enter your password",
                 autocomplete: "current-password",
                 required: true,
-                class: "block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm" %>
+                class: "block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm" %>
           </div>
           <div class="mt-4 flex gap-3">
             <%= form.submit "Generate New Codes",
-                class: "inline-flex justify-center rounded-md border border-transparent bg-blue-600 px-4 py-2 text-sm font-medium text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2" %>
+                class: "inline-flex justify-center rounded-md border border-transparent bg-blue-600 px-4 py-2 text-sm font-medium text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900" %>
             <button type="button"
                     data-action="click->modal#hide"
-                    class="inline-flex justify-center rounded-md border border-gray-300 bg-white px-4 py-2 text-sm font-medium text-gray-700 shadow-sm hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2">
+                    class="inline-flex justify-center rounded-md border border-gray-300 dark:border-gray-600 bg-white dark:bg-gray-700 px-4 py-2 text-sm font-medium text-gray-700 dark:text-gray-200 shadow-sm hover:bg-gray-50 dark:hover:bg-gray-800 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900">
               Cancel
             </button>
           </div>
@@ -244,10 +244,10 @@
   </div>
 
   <!-- Passkeys (WebAuthn) -->
-  <div class="bg-white shadow sm:rounded-lg">
+  <div class="bg-white dark:bg-gray-800 shadow sm:rounded-lg">
     <div class="px-4 py-5 sm:p-6" data-controller="webauthn" data-webauthn-challenge-url-value="/webauthn/challenge" data-webauthn-create-url-value="/webauthn/create">
-      <h3 class="text-lg font-medium leading-6 text-gray-900">Passkeys</h3>
+      <h3 class="text-lg font-medium leading-6 text-gray-900 dark:text-gray-100">Passkeys</h3>
-      <div class="mt-2 max-w-xl text-sm text-gray-500">
+      <div class="mt-2 max-w-xl text-sm text-gray-500 dark:text-gray-400">
         <p>Use your fingerprint, face recognition, or security key to sign in without passwords.</p>
       </div>
 
@@ -255,20 +255,20 @@
       <div class="mt-5">
         <div id="add-passkey-form" class="space-y-4">
           <div>
-            <label for="passkey-nickname" class="block text-sm font-medium text-gray-700">Passkey Name</label>
+            <label for="passkey-nickname" class="block text-sm font-medium text-gray-700 dark:text-gray-300">Passkey Name</label>
             <input type="text"
                    id="passkey-nickname"
                    data-webauthn-target="nickname"
                    placeholder="e.g., MacBook Touch ID, iPhone Face ID"
-                   class="mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm">
+                   class="mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 sm:text-sm">
-            <p class="mt-1 text-sm text-gray-500">Give this passkey a memorable name so you can identify it later.</p>
+            <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">Give this passkey a memorable name so you can identify it later.</p>
           </div>
 
           <div>
             <button type="button"
                     data-action="click->webauthn#register"
                     data-webauthn-target="submitButton"
-                    class="inline-flex items-center rounded-md border border-transparent bg-green-600 px-4 py-2 text-sm font-medium text-white shadow-sm hover:bg-green-700 focus:outline-none focus:ring-2 focus:ring-green-500 focus:ring-offset-2">
+                    class="inline-flex items-center rounded-md border border-transparent bg-green-600 px-4 py-2 text-sm font-medium text-white shadow-sm hover:bg-green-700 focus:outline-none focus:ring-2 focus:ring-green-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900">
               <svg class="w-4 h-4 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                 <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 4v16m8-8H4"></path>
               </svg>
@@ -284,11 +284,11 @@
 
       <!-- Existing Passkeys List -->
       <div class="mt-8">
-        <h4 class="text-md font-medium text-gray-900 mb-4">Your Passkeys</h4>
+        <h4 class="text-md font-medium text-gray-900 dark:text-gray-100 mb-4">Your Passkeys</h4>
         <% if @user.webauthn_credentials.exists? %>
           <div class="space-y-3">
             <% @user.webauthn_credentials.order(created_at: :desc).each do |credential| %>
-              <div class="flex items-center justify-between p-4 bg-gray-50 rounded-lg">
+              <div class="flex items-center justify-between p-4 bg-gray-50 dark:bg-gray-700 rounded-lg">
                 <div class="flex items-center space-x-3">
                   <div class="flex-shrink-0">
                     <% if credential.platform_authenticator? %>
@@ -304,10 +304,10 @@
                     <% end %>
                   </div>
                   <div>
-                    <div class="text-sm font-medium text-gray-900">
+                    <div class="text-sm font-medium text-gray-900 dark:text-gray-100">
                       <%= credential.nickname %>
                     </div>
-                    <div class="text-sm text-gray-500">
+                    <div class="text-sm text-gray-500 dark:text-gray-400">
                       <%= credential.authenticator_type.humanize %> •
                       Last used <%= credential.last_used_ago %>
                       <% if credential.backed_up? %>
@@ -318,7 +318,7 @@
                 </div>
                 <div class="flex items-center space-x-2">
                   <% if credential.created_recently? %>
-                    <span class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-green-100 text-green-800">
+                    <span class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-green-100 dark:bg-green-900/50 text-green-800 dark:text-green-200">
                       New
                     </span>
                   <% end %>
@@ -338,7 +338,7 @@
             <% end %>
           </div>
 
-          <div class="mt-4 p-3 bg-blue-50 rounded-lg">
+          <div class="mt-4 p-3 bg-blue-50 dark:bg-blue-900/30 rounded-lg">
             <div class="flex">
               <div class="flex-shrink-0">
                 <svg class="h-5 w-5 text-blue-400" viewBox="0 0 20 20" fill="currentColor">
@@ -346,7 +346,7 @@
                 </svg>
               </div>
               <div class="ml-3">
-                <p class="text-sm text-blue-800">
+                <p class="text-sm text-blue-800 dark:text-blue-200">
                   <strong>Tip:</strong> Add passkeys on multiple devices for easy access. Platform authenticators (like Touch ID) are synced across your devices if you use iCloud Keychain or Google Password Manager.
                 </p>
               </div>
@@ -354,11 +354,11 @@
           </div>
         <% else %>
           <div class="text-center py-8">
-            <svg class="mx-auto h-12 w-12 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <svg class="mx-auto h-12 w-12 text-gray-400 dark:text-gray-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
               <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 7a2 2 0 012 2m4 0a6 6 0 01-7.743 5.743L11 17H9v2H7v2H4a1 1 0 01-1-1v-2.586a1 1 0 01.293-.707l5.964-5.964A6 6 0 1121 9z"></path>
             </svg>
-            <h3 class="mt-2 text-sm font-medium text-gray-900">No passkeys</h3>
+            <h3 class="mt-2 text-sm font-medium text-gray-900 dark:text-gray-100">No passkeys</h3>
-            <p class="mt-1 text-sm text-gray-500">Get started by adding your first passkey for passwordless sign-in.</p>
+            <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">Get started by adding your first passkey for passwordless sign-in.</p>
           </div>
         <% end %>
       </div>

app/views/security_mailer/_event_metadata.html.erb

@@ -0,0 +1,11 @@
+<hr>
+<p>
+  This action was recorded at <strong><%= @occurred_at.to_fs(:long) %></strong>
+  from IP <strong><%= @ip %></strong>
+  using <strong><%= @user_agent.presence || "an unknown client" %></strong>.
+</p>
+
+<p>
+  If you did <strong>not</strong> perform this action, reset your password
+  immediately and contact your administrator.
+</p>

app/views/security_mailer/_event_metadata.text.erb

@@ -0,0 +1,7 @@
+---
+This action was recorded at <%= @occurred_at.to_fs(:long) %>
+from IP <%= @ip %>
+using <%= @user_agent.presence || "an unknown client" %>.
+
+If you did not perform this action, reset your password immediately
+and contact your administrator.

app/views/security_mailer/api_key_created.html.erb

@@ -0,0 +1,8 @@
+<p>Hello,</p>
+
+<p>
+  A new API key (<strong><%= @api_key_name %></strong>) was just created
+  on your Clinch account (<strong><%= @user.email_address %></strong>).
+</p>
+
+<%= render "event_metadata" %>

app/views/security_mailer/api_key_created.text.erb

@@ -0,0 +1,6 @@
+Hello,
+
+A new API key ("<%= @api_key_name %>") was just created on your Clinch
+account (<%= @user.email_address %>).
+
+<%= render "event_metadata" %>

app/views/security_mailer/api_key_revoked.html.erb

@@ -0,0 +1,8 @@
+<p>Hello,</p>
+
+<p>
+  The API key <strong><%= @api_key_name %></strong> was just revoked
+  on your Clinch account (<strong><%= @user.email_address %></strong>).
+</p>
+
+<%= render "event_metadata" %>

app/views/security_mailer/api_key_revoked.text.erb

@@ -0,0 +1,6 @@
+Hello,
+
+The API key "<%= @api_key_name %>" was just revoked on your Clinch
+account (<%= @user.email_address %>).
+
+<%= render "event_metadata" %>

app/views/security_mailer/backup_codes_regenerated.html.erb

@@ -0,0 +1,9 @@
+<p>Hello,</p>
+
+<p>
+  A new set of two-factor backup codes was generated on your Clinch
+  account (<strong><%= @user.email_address %></strong>).
+  Any previous backup codes are now invalid.
+</p>
+
+<%= render "event_metadata" %>

app/views/security_mailer/backup_codes_regenerated.text.erb

@@ -0,0 +1,6 @@
+Hello,
+
+A new set of two-factor backup codes was generated on your Clinch account
+(<%= @user.email_address %>). Any previous backup codes are now invalid.
+
+<%= render "event_metadata" %>

app/views/security_mailer/email_address_changed.html.erb

@@ -0,0 +1,22 @@
+<p>Hello,</p>
+
+<% if @recipient == @new_email %>
+  <p>
+    The email address on your Clinch account is now
+    <strong><%= @new_email %></strong>.
+    It was previously <strong><%= @old_email %></strong>.
+  </p>
+<% else %>
+  <p>
+    The email address on your Clinch account was changed away from this
+    address (<strong><%= @old_email %></strong>) to
+    <strong><%= @new_email %></strong>.
+  </p>
+  <p>
+    If this was <strong>not</strong> you, contact your administrator
+    immediately — whoever made the change can now receive password
+    reset emails for the account.
+  </p>
+<% end %>
+
+<%= render "event_metadata" %>

app/views/security_mailer/email_address_changed.text.erb

@@ -0,0 +1,14 @@
+Hello,
+
+<% if @recipient == @new_email %>
+The email address on your Clinch account is now <%= @new_email %>.
+It was previously <%= @old_email %>.
+<% else %>
+The email address on your Clinch account was changed away from this
+address (<%= @old_email %>) to <%= @new_email %>.
+
+If this was not you, contact your administrator immediately — whoever
+made the change can now receive password reset emails for the account.
+<% end %>
+
+<%= render "event_metadata" %>

app/views/security_mailer/passkey_added.html.erb

@@ -0,0 +1,8 @@
+<p>Hello,</p>
+
+<p>
+  A new passkey (<strong><%= @nickname %></strong>) was just added to your
+  Clinch account (<strong><%= @user.email_address %></strong>).
+</p>
+
+<%= render "event_metadata" %>

app/views/security_mailer/passkey_added.text.erb

@@ -0,0 +1,6 @@
+Hello,
+
+A new passkey ("<%= @nickname %>") was just added to your Clinch account
+(<%= @user.email_address %>).
+
+<%= render "event_metadata" %>

app/views/security_mailer/passkey_removed.html.erb

@@ -0,0 +1,8 @@
+<p>Hello,</p>
+
+<p>
+  A passkey (<strong><%= @nickname %></strong>) was just removed from your
+  Clinch account (<strong><%= @user.email_address %></strong>).
+</p>
+
+<%= render "event_metadata" %>

app/views/security_mailer/passkey_removed.text.erb

@@ -0,0 +1,6 @@
+Hello,
+
+A passkey ("<%= @nickname %>") was just removed from your Clinch account
+(<%= @user.email_address %>).
+
+<%= render "event_metadata" %>

app/views/security_mailer/password_changed.html.erb

@@ -0,0 +1,8 @@
+<p>Hello,</p>
+
+<p>
+  The password on your Clinch account
+  (<strong><%= @user.email_address %></strong>) was just changed.
+</p>
+
+<%= render "event_metadata" %>

app/views/security_mailer/password_changed.text.erb

@@ -0,0 +1,5 @@
+Hello,
+
+The password on your Clinch account (<%= @user.email_address %>) was just changed.
+
+<%= render "event_metadata" %>

app/views/security_mailer/totp_disabled.html.erb

@@ -0,0 +1,8 @@
+<p>Hello,</p>
+
+<p>
+  Two-factor authentication was just <strong>disabled</strong> on your
+  Clinch account (<strong><%= @user.email_address %></strong>).
+</p>
+
+<%= render "event_metadata" %>

app/views/security_mailer/totp_disabled.text.erb

@@ -0,0 +1,6 @@
+Hello,
+
+Two-factor authentication was just disabled on your Clinch account
+(<%= @user.email_address %>).
+
+<%= render "event_metadata" %>

app/views/sessions/new.html.erb

@@ -1,12 +1,12 @@
-<div class="mx-auto md:w-2/3 w-full" data-controller="webauthn login-form" data-webauthn-check-url-value="/webauthn/check">
+<div class="mx-auto max-w-md w-full" data-controller="webauthn login-form" data-webauthn-check-url-value="/webauthn/check">
   <div class="mb-8">
-    <h1 class="font-bold text-4xl">Sign in to Clinch</h1>
+    <h1 class="font-bold text-4xl text-center">Sign in to Clinch</h1>
   </div>
 
   <%= form_with url: signin_path, class: "contents", data: { controller: "form-errors" } do |form| %>
     <%= hidden_field_tag :rd, params[:rd] if params[:rd].present? %>
     <div class="my-5">
-      <%= form.label :email_address, "Email Address", class: "block font-medium text-sm text-gray-700" %>
+      <%= form.label :email_address, "Email Address", class: "block font-medium text-sm text-gray-700 dark:text-gray-300" %>
       <%= form.email_field :email_address,
           required: true,
           autofocus: true,
@@ -14,17 +14,17 @@
           placeholder: "your@email.com",
           value: @login_hint || params[:email_address],
           data: { action: "blur->webauthn#checkWebAuthnSupport change->webauthn#checkWebAuthnSupport" },
-          class: "block shadow-sm rounded-md border border-gray-400 focus:outline-blue-600 px-3 py-2 mt-2 w-full" %>
+          class: "block shadow-sm rounded-md border border-gray-400 focus:outline-blue-600 px-3 py-2 mt-2 w-full dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100" %>
     </div>
 
     <!-- WebAuthn section - initially hidden -->
     <div id="webauthn-section" data-login-form-target="webauthnSection" class="my-5 hidden">
-      <div class="bg-green-50 border border-green-200 rounded-lg p-4 mb-4">
+      <div class="bg-green-50 border border-green-200 rounded-lg p-4 mb-4 dark:bg-green-900/30 dark:border-green-700">
         <div class="flex items-center">
           <svg class="w-5 h-5 text-green-600 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
             <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z"></path>
           </svg>
-          <p class="text-sm text-green-800">
+          <p class="text-sm text-green-800 dark:text-green-200">
             <strong>Passkey detected!</strong> You can sign in without a password.
           </p>
         </div>
@@ -38,18 +38,24 @@
         </svg>
         Continue with Passkey
       </button>
+      <div data-webauthn-target="error" class="mt-2 text-sm text-red-600" style="display: none;"></div>
     </div>
 
     <!-- Password section - shown by default, hidden if WebAuthn is required -->
     <div id="password-section" data-login-form-target="passwordSection">
       <div class="my-5">
-        <%= form.label :password, class: "block font-medium text-sm text-gray-700" %>
+        <%= form.label :password, class: "block font-medium text-sm text-gray-700 dark:text-gray-300" %>
         <%= form.password_field :password,
             required: true,
             autocomplete: "current-password",
             placeholder: "Enter your password",
             maxlength: 72,
-            class: "block shadow-sm rounded-md border border-gray-400 focus:outline-blue-600 px-3 py-2 mt-2 w-full" %>
+            class: "block shadow-sm rounded-md border border-gray-400 focus:outline-blue-600 px-3 py-2 mt-2 w-full dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100" %>
+      </div>
+
+      <div class="my-5 flex items-center">
+        <%= form.check_box :remember_me, { class: "rounded border-gray-400 text-blue-600 focus:ring-blue-500 dark:border-gray-600 dark:bg-gray-800" }, "1", "0" %>
+        <%= form.label :remember_me, "Remember me for 30 days", class: "ml-2 text-sm text-gray-600 dark:text-gray-400" %>
       </div>
 
       <div class="my-5">
@@ -58,14 +64,16 @@
       </div>
     </div>
 
-    <div class="mt-4 text-sm text-gray-600 text-center">
+    <div class="mt-4 text-sm text-gray-600 dark:text-gray-400 text-center">
       <%= link_to "Forgot your password?", new_password_path, class: "text-blue-600 hover:text-blue-500 underline" %>
     </div>
   <% end %>
 
   <!-- Loading overlay -->
-  <div id="loading-overlay" data-login-form-target="loadingOverlay" class="hidden fixed inset-0 bg-gray-600 bg-opacity-50 flex items-center justify-center z-50">
+  <div id="loading-overlay" data-login-form-target="loadingOverlay"
-    <div class="bg-white rounded-lg p-6 flex items-center">
+       data-action="click->login-form#hideLoading"
+       class="hidden fixed inset-0 bg-gray-600 bg-opacity-50 flex items-center justify-center z-50 cursor-pointer">
+    <div class="bg-white rounded-lg p-6 flex items-center dark:bg-gray-900">
       <svg class="animate-spin -ml-1 mr-3 h-5 w-5 text-blue-600" fill="none" viewBox="0 0 24 24">
         <circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle>
         <path class="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path>

app/views/sessions/verify_totp.html.erb

@@ -1,8 +1,8 @@
 <div class="mx-auto max-w-md">
-  <div class="bg-white py-8 px-6 shadow rounded-lg sm:px-10">
+  <div class="bg-white py-8 px-6 shadow rounded-lg sm:px-10 dark:bg-gray-900">
     <div class="mb-8">
-      <h2 class="text-2xl font-bold text-gray-900">Two-Factor Authentication</h2>
+      <h2 class="text-2xl font-bold text-gray-900 dark:text-gray-100">Two-Factor Authentication</h2>
-      <p class="mt-2 text-sm text-gray-600">
+      <p class="mt-2 text-sm text-gray-600 dark:text-gray-400">
         Enter the 6-digit code from your authenticator app to complete sign in.
       </p>
     </div>
@@ -13,7 +13,7 @@
     } do |form| %>
     <%= hidden_field_tag :rd, params[:rd] if params[:rd].present? %>
       <div>
-        <%= label_tag :code, "Verification Code", class: "block text-sm font-medium text-gray-700" %>
+        <%= label_tag :code, "Verification Code", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
         <%= text_field_tag :code,
             nil,
             placeholder: "000000",
@@ -21,8 +21,8 @@
             required: true,
             autofocus: true,
             autocomplete: "off",
-            class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 text-center text-2xl tracking-widest font-mono sm:text-sm" %>
+            class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 text-center text-2xl tracking-widest font-mono sm:text-sm dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100" %>
-        <p class="mt-2 text-xs text-gray-500">
+        <p class="mt-2 text-xs text-gray-500 dark:text-gray-400">
           Enter your 6-digit authenticator code or an 8-character backup code
         </p>
       </div>
@@ -30,25 +30,50 @@
       <div>
         <%= form.submit "Verify",
             data: { form_submit_protection_target: "submit" },
-            class: "w-full flex justify-center py-2 px-4 border border-transparent rounded-md shadow-sm text-sm font-medium text-white bg-blue-600 hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500" %>
+            class: "w-full flex justify-center py-2 px-4 border border-transparent rounded-md shadow-sm text-sm font-medium text-white bg-blue-600 hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500 dark:focus:ring-offset-gray-900" %>
+      </div>
+    <% end %>
+
+    <% if @user_has_webauthn %>
+      <div data-controller="webauthn" data-webauthn-check-url-value="/webauthn/check">
+        <input type="hidden" name="webauthn_email" value="<%= @pending_email %>">
+        <div class="mt-4">
+          <div class="relative my-4">
+            <div class="absolute inset-0 flex items-center">
+              <div class="w-full border-t border-gray-300 dark:border-gray-600"></div>
+            </div>
+            <div class="relative flex justify-center text-sm">
+              <span class="px-2 bg-white text-gray-500 dark:bg-gray-900 dark:text-gray-400">Or</span>
+            </div>
+          </div>
+          <button type="button"
+                  data-action="click->webauthn#authenticate"
+                  class="w-full rounded-md px-3.5 py-2.5 bg-green-600 hover:bg-green-500 text-white font-medium cursor-pointer flex items-center justify-center">
+            <svg class="w-5 h-5 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+              <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 7a2 2 0 012 2m4 0a6 6 0 01-7.743 5.743L11 17H9v2H7v2H4a1 1 0 01-1-1v-2.586a1 1 0 01.293-.707l5.964-5.964A6 6 0 1121 9z" />
+            </svg>
+            Use Passkey Instead
+          </button>
+          <div data-webauthn-target="error" class="mt-2 text-sm text-red-600" style="display: none;"></div>
+        </div>
       </div>
     <% end %>
 
     <div class="mt-6">
       <div class="relative">
         <div class="absolute inset-0 flex items-center">
-          <div class="w-full border-t border-gray-300"></div>
+          <div class="w-full border-t border-gray-300 dark:border-gray-600"></div>
         </div>
         <div class="relative flex justify-center text-sm">
-          <span class="px-2 bg-white text-gray-500">Need help?</span>
+          <span class="px-2 bg-white text-gray-500 dark:bg-gray-900 dark:text-gray-400">Need help?</span>
         </div>
       </div>
 
       <div class="mt-4 text-center">
-        <p class="text-sm text-gray-600">
+        <p class="text-sm text-gray-600 dark:text-gray-400">
           Lost access to your authenticator?
         </p>
-        <p class="mt-1 text-xs text-gray-500">
+        <p class="mt-1 text-xs text-gray-500 dark:text-gray-400">
           Contact an administrator for assistance.
         </p>
       </div>

app/views/shared/_app_monogram.html.erb

@@ -0,0 +1,18 @@
+<%# Renders a deterministic monogram SVG for an Application that has no icon.
+    Locals:
+      name   - the application name (required)
+      class  - css classes for the <svg> element (e.g. "h-12 w-12 rounded-lg")
+%>
+<% initials = monogram_initials(name) %>
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 40 40"
+     class="<%= local_assigns[:class] || "h-12 w-12 rounded-lg" %>"
+     role="img" aria-label="<%= name %> icon">
+  <rect width="40" height="40" fill="<%= monogram_color(name) %>" />
+  <text x="50%" y="52%" dominant-baseline="middle" text-anchor="middle"
+        font-family="ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif"
+        font-weight="600" fill="#ffffff"
+        font-size="<%= initials.length == 1 ? 22 : 17 %>"
+        letter-spacing="-0.5">
+    <%= initials %>
+  </text>
+</svg>

app/views/shared/_flash.html.erb

@@ -8,34 +8,34 @@
     # Map flash types to styling
     case type.to_s
     when 'notice'
-      bg_class = 'bg-green-50'
+      bg_class = 'bg-green-50 dark:bg-green-900/30'
-      text_class = 'text-green-800'
+      text_class = 'text-green-800 dark:text-green-200'
-      icon_class = 'text-green-400'
+      icon_class = 'text-green-400 dark:text-green-300'
       icon_path = 'M10 18a8 8 0 100-16 8 8 0 000 16zm3.707-9.293a1 1 0 00-1.414-1.414L9 10.586 7.707 9.293a1 1 0 00-1.414 1.414l2 2a1 1 0 001.414 0l4-4z'
       auto_dismiss = true
     when 'alert', 'error'
-      bg_class = 'bg-red-50'
+      bg_class = 'bg-red-50 dark:bg-red-900/30'
-      text_class = 'text-red-800'
+      text_class = 'text-red-800 dark:text-red-200'
-      icon_class = 'text-red-400'
+      icon_class = 'text-red-400 dark:text-red-300'
       icon_path = 'M10 18a8 8 0 100-16 8 8 0 000 16zM8.707 7.293a1 1 0 00-1.414 1.414L8.586 10l-1.293 1.293a1 1 0 101.414 1.414L10 11.414l1.293 1.293a1 1 0 001.414-1.414L11.414 10l1.293-1.293a1 1 0 00-1.414-1.414L10 8.586 8.707 7.293z'
       auto_dismiss = false
     when 'warning'
-      bg_class = 'bg-yellow-50'
+      bg_class = 'bg-yellow-50 dark:bg-yellow-900/30'
-      text_class = 'text-yellow-800'
+      text_class = 'text-yellow-800 dark:text-yellow-200'
-      icon_class = 'text-yellow-400'
+      icon_class = 'text-yellow-400 dark:text-yellow-300'
       icon_path = 'M8.257 3.099c.765-1.36 2.722-1.36 3.486 0l5.58 9.92c.75 1.334-.213 2.98-1.742 2.98H4.42c-1.53 0-2.493-1.646-1.743-2.98l5.58-9.92zM11 13a1 1 0 11-2 0 1 1 0 012 0zm-1-8a1 1 0 00-1 1v3a1 1 0 002 0V6a1 1 0 00-1-1z'
       auto_dismiss = false
     when 'info'
-      bg_class = 'bg-blue-50'
+      bg_class = 'bg-blue-50 dark:bg-blue-900/30'
-      text_class = 'text-blue-800'
+      text_class = 'text-blue-800 dark:text-blue-200'
-      icon_class = 'text-blue-400'
+      icon_class = 'text-blue-400 dark:text-blue-300'
       icon_path = 'M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a1 1 0 000 2v3a1 1 0 001 1h1a1 1 0 100-2v-3a1 1 0 00-1-1H9z'
       auto_dismiss = true
     else
       # Default styling for unknown types
-      bg_class = 'bg-gray-50'
+      bg_class = 'bg-gray-50 dark:bg-gray-800'
-      text_class = 'text-gray-800'
+      text_class = 'text-gray-800 dark:text-gray-200'
-      icon_class = 'text-gray-400'
+      icon_class = 'text-gray-400 dark:text-gray-500'
       icon_path = 'M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a1 1 0 000 2v3a1 1 0 001 1h1a1 1 0 100-2v-3a1 1 0 00-1-1H9z'
       auto_dismiss = false
     end
@@ -60,7 +60,7 @@
           <div class="-mx-1.5 -my-1.5">
             <button type="button"
                     data-action="click->flash#dismiss"
-                    class="inline-flex rounded-md <%= bg_class %> p-1.5 <%= icon_class %> hover:bg-opacity-70 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-offset-<%= bg_class.gsub('bg-', '') %>"
+                    class="inline-flex rounded-md <%= bg_class %> p-1.5 <%= icon_class %> hover:bg-opacity-70 focus:outline-none focus:ring-2 focus:ring-offset-2"
                     aria-label="Dismiss">
               <span class="sr-only">Dismiss</span>
               <svg class="h-5 w-5" viewBox="0 0 20 20" fill="currentColor">

app/views/shared/_form_errors.html.erb

@@ -3,19 +3,19 @@
 
 <% form_object = form.respond_to?(:object) ? form.object : (object || form) %>
 <% if form_object&.errors&.any? %>
-  <div class="rounded-md bg-red-50 p-4 mb-6 border border-red-200" role="alert" aria-labelledby="form-errors-title" data-form-errors-target="container">
+  <div class="rounded-md bg-red-50 dark:bg-red-900/30 p-4 mb-6 border border-red-200 dark:border-red-700" role="alert" aria-labelledby="form-errors-title" data-form-errors-target="container">
     <div class="flex">
       <div class="flex-shrink-0">
-        <svg class="h-5 w-5 text-red-400" viewBox="0 0 20 20" fill="currentColor" aria-hidden="true">
+        <svg class="h-5 w-5 text-red-400 dark:text-red-300" viewBox="0 0 20 20" fill="currentColor" aria-hidden="true">
           <path fill-rule="evenodd" d="M10 18a8 8 0 100-16 8 8 0 000 16zM8.707 7.293a1 1 0 00-1.414 1.414L8.586 10l-1.293 1.293a1 1 0 101.414 1.414L10 11.414l1.293 1.293a1 1 0 001.414-1.414L11.414 10l1.293-1.293a1 1 0 00-1.414-1.414L10 8.586 8.707 7.293z" clip-rule="evenodd"/>
         </svg>
       </div>
       <div class="ml-3 flex-1">
-        <h3 id="form-errors-title" class="text-sm font-medium text-red-800">
+        <h3 id="form-errors-title" class="text-sm font-medium text-red-800 dark:text-red-200">
           <%= pluralize(form_object.errors.count, "error") %> prohibited this <%= form_object.class.name.downcase.gsub(/^admin::/, '') %> from being saved:
         </h3>
         <div class="mt-2">
-          <ul class="list-disc space-y-1 pl-5 text-sm text-red-700">
+          <ul class="list-disc space-y-1 pl-5 text-sm text-red-700 dark:text-red-300">
             <% form_object.errors.full_messages.each do |message| %>
               <li><%= message %></li>
             <% end %>
@@ -24,7 +24,7 @@
       </div>
       <div class="ml-auto pl-3">
         <div class="-mx-1.5 -my-1.5">
-          <button type="button" data-action="click->form-errors#dismiss" class="inline-flex rounded-md bg-red-50 p-1.5 text-red-500 hover:bg-red-100 focus:outline-none focus:ring-2 focus:ring-red-600 focus:ring-offset-2 focus:ring-offset-red-50" aria-label="Dismiss">
+          <button type="button" data-action="click->form-errors#dismiss" class="inline-flex rounded-md bg-red-50 dark:bg-red-900/30 p-1.5 text-red-500 dark:text-red-400 hover:bg-red-100 dark:hover:bg-red-900/50 focus:outline-none focus:ring-2 focus:ring-red-600 focus:ring-offset-2 focus:ring-offset-red-50 dark:focus:ring-offset-gray-900" aria-label="Dismiss">
             <svg class="h-5 w-5" viewBox="0 0 20 20" fill="currentColor" aria-hidden="true">
               <path d="M6.28 5.22a.75.75 0 00-1.06 1.06L8.94 10l-3.72 3.72a.75.75 0 101.06 1.06L10 11.06l3.72 3.72a.75.75 0 101.06-1.06L11.06 10l3.72-3.72a.75.75 0 00-1.06-1.06L10 8.94 6.28 5.22z" />
             </svg>

app/views/shared/_sidebar.html.erb

@@ -6,16 +6,16 @@
 
   <!-- Desktop sidebar -->
   <div class="hidden lg:fixed lg:inset-y-0 lg:z-50 lg:flex lg:w-64 lg:flex-col">
-    <div class="flex grow flex-col gap-y-5 overflow-y-auto border-r border-gray-200 bg-white px-6 pb-4">
+    <div class="flex grow flex-col gap-y-5 overflow-y-auto border-r border-gray-200 dark:border-gray-700 bg-white dark:bg-gray-900 px-6 pb-4">
       <!-- Branding and User Info -->
-      <div class="flex flex-col pt-5 pb-4 border-b border-gray-200">
+      <div class="flex flex-col pt-5 pb-4 border-b border-gray-200 dark:border-gray-700">
         <div class="flex items-center">
-          <h1 class="text-2xl font-bold text-gray-900">Clinch</h1>
+          <h1 class="text-2xl font-bold text-gray-900 dark:text-gray-100">Clinch</h1>
         </div>
         <div class="mt-2">
-          <p class="text-sm text-gray-600 truncate"><%= user.email_address %></p>
+          <p class="text-sm text-gray-600 dark:text-gray-400 truncate"><%= user.email_address %></p>
           <% if user.admin? %>
-            <span class="inline-flex items-center rounded-full bg-blue-100 px-2 py-0.5 text-xs font-medium text-blue-800 mt-1">
+            <span class="inline-flex items-center rounded-full bg-blue-100 dark:bg-blue-900/50 px-2 py-0.5 text-xs font-medium text-blue-800 dark:text-blue-200 mt-1">
               Administrator
             </span>
           <% end %>
@@ -28,7 +28,7 @@
             <ul role="list" class="-mx-2 space-y-1">
               <!-- Dashboard -->
               <li>
-                <%= link_to root_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path == '/' ? 'bg-gray-50 text-blue-600' : 'text-gray-700 hover:text-blue-600 hover:bg-gray-50' }" do %>
+                <%= link_to root_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path == '/' ? 'bg-gray-50 dark:bg-gray-800 text-blue-600 dark:text-blue-400' : 'text-gray-700 dark:text-gray-300 hover:text-blue-600 dark:hover:text-blue-400 hover:bg-gray-50 dark:hover:bg-gray-800' }" do %>
                   <svg class="h-6 w-6 shrink-0" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
                     <path stroke-linecap="round" stroke-linejoin="round" d="M2.25 12l8.954-8.955c.44-.439 1.152-.439 1.591 0L21.75 12M4.5 9.75v10.125c0 .621.504 1.125 1.125 1.125H9.75v-4.875c0-.621.504-1.125 1.125-1.125h2.25c.621 0 1.125.504 1.125 1.125V21h4.125c.621 0 1.125-.504 1.125-1.125V9.75M8.25 21h8.25" />
                   </svg>
@@ -39,7 +39,7 @@
               <% if user.admin? %>
                 <!-- Admin: Users -->
                 <li>
-                  <%= link_to admin_users_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path.start_with?('/admin/users') ? 'bg-gray-50 text-blue-600' : 'text-gray-700 hover:text-blue-600 hover:bg-gray-50' }" do %>
+                  <%= link_to admin_users_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path.start_with?('/admin/users') ? 'bg-gray-50 dark:bg-gray-800 text-blue-600 dark:text-blue-400' : 'text-gray-700 dark:text-gray-300 hover:text-blue-600 dark:hover:text-blue-400 hover:bg-gray-50 dark:hover:bg-gray-800' }" do %>
                     <svg class="h-6 w-6 shrink-0" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
                       <path stroke-linecap="round" stroke-linejoin="round" d="M15 19.128a9.38 9.38 0 002.625.372 9.337 9.337 0 004.121-.952 4.125 4.125 0 00-7.533-2.493M15 19.128v-.003c0-1.113-.285-2.16-.786-3.07M15 19.128v.106A12.318 12.318 0 018.624 21c-2.331 0-4.512-.645-6.374-1.766l-.001-.109a6.375 6.375 0 0111.964-3.07M12 6.375a3.375 3.375 0 11-6.75 0 3.375 3.375 0 016.75 0zm8.25 2.25a2.625 2.625 0 11-5.25 0 2.625 2.625 0 015.25 0z" />
                     </svg>
@@ -49,7 +49,7 @@
 
                 <!-- Admin: Applications -->
                 <li>
-                  <%= link_to admin_applications_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path.start_with?('/admin/applications') ? 'bg-gray-50 text-blue-600' : 'text-gray-700 hover:text-blue-600 hover:bg-gray-50' }" do %>
+                  <%= link_to admin_applications_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path.start_with?('/admin/applications') ? 'bg-gray-50 dark:bg-gray-800 text-blue-600 dark:text-blue-400' : 'text-gray-700 dark:text-gray-300 hover:text-blue-600 dark:hover:text-blue-400 hover:bg-gray-50 dark:hover:bg-gray-800' }" do %>
                     <svg class="h-6 w-6 shrink-0" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
                       <path stroke-linecap="round" stroke-linejoin="round" d="M3.75 6A2.25 2.25 0 016 3.75h2.25A2.25 2.25 0 0110.5 6v2.25a2.25 2.25 0 01-2.25 2.25H6a2.25 2.25 0 01-2.25-2.25V6zM3.75 15.75A2.25 2.25 0 016 13.5h2.25a2.25 2.25 0 012.25 2.25V18a2.25 2.25 0 01-2.25 2.25H6A2.25 2.25 0 013.75 18v-2.25zM13.5 6a2.25 2.25 0 012.25-2.25H18A2.25 2.25 0 0120.25 6v2.25A2.25 2.25 0 0118 10.5h-2.25a2.25 2.25 0 01-2.25-2.25V6zM13.5 15.75a2.25 2.25 0 012.25-2.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-2.25A2.25 2.25 0 0113.5 18v-2.25z" />
                     </svg>
@@ -59,18 +59,28 @@
 
                 <!-- Admin: Groups -->
                 <li>
-                  <%= link_to admin_groups_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path.start_with?('/admin/groups') ? 'bg-gray-50 text-blue-600' : 'text-gray-700 hover:text-blue-600 hover:bg-gray-50' }" do %>
+                  <%= link_to admin_groups_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path.start_with?('/admin/groups') ? 'bg-gray-50 dark:bg-gray-800 text-blue-600 dark:text-blue-400' : 'text-gray-700 dark:text-gray-300 hover:text-blue-600 dark:hover:text-blue-400 hover:bg-gray-50 dark:hover:bg-gray-800' }" do %>
                     <svg class="h-6 w-6 shrink-0" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
                       <path stroke-linecap="round" stroke-linejoin="round" d="M18 18.72a9.094 9.094 0 003.741-.479 3 3 0 00-4.682-2.72m.94 3.198l.001.031c0 .225-.012.447-.037.666A11.944 11.944 0 0112 21c-2.17 0-4.207-.576-5.963-1.584A6.062 6.062 0 016 18.719m12 0a5.971 5.971 0 00-.941-3.197m0 0A5.995 5.995 0 0012 12.75a5.995 5.995 0 00-5.058 2.772m0 0a3 3 0 00-4.681 2.72 8.986 8.986 0 003.74.477m.94-3.197a5.971 5.971 0 00-.94 3.197M15 6.75a3 3 0 11-6 0 3 3 0 016 0zm6 3a2.25 2.25 0 11-4.5 0 2.25 2.25 0 014.5 0zm-13.5 0a2.25 2.25 0 11-4.5 0 2.25 2.25 0 014.5 0z" />
                     </svg>
                     Groups
                   <% end %>
                 </li>
+
+                <!-- Admin: Access check -->
+                <li>
+                  <%= link_to admin_access_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path.start_with?('/admin/access') ? 'bg-gray-50 dark:bg-gray-800 text-blue-600 dark:text-blue-400' : 'text-gray-700 dark:text-gray-300 hover:text-blue-600 dark:hover:text-blue-400 hover:bg-gray-50 dark:hover:bg-gray-800' }" do %>
+                    <svg class="h-6 w-6 shrink-0" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
+                      <path stroke-linecap="round" stroke-linejoin="round" d="M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z" />
+                    </svg>
+                    Access check
+                  <% end %>
+                </li>
               <% end %>
 
               <!-- Profile -->
               <li>
-                <%= link_to profile_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path == '/profile' ? 'bg-gray-50 text-blue-600' : 'text-gray-700 hover:text-blue-600 hover:bg-gray-50' }" do %>
+                <%= link_to profile_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path == '/profile' ? 'bg-gray-50 dark:bg-gray-800 text-blue-600 dark:text-blue-400' : 'text-gray-700 dark:text-gray-300 hover:text-blue-600 dark:hover:text-blue-400 hover:bg-gray-50 dark:hover:bg-gray-800' }" do %>
                   <svg class="h-6 w-6 shrink-0" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
                     <path stroke-linecap="round" stroke-linejoin="round" d="M17.982 18.725A7.488 7.488 0 0012 15.75a7.488 7.488 0 00-5.982 2.975m11.963 0a9 9 0 10-11.963 0m11.963 0A8.966 8.966 0 0112 21a8.966 8.966 0 01-5.982-2.275M15 9.75a3 3 0 11-6 0 3 3 0 016 0z" />
                   </svg>
@@ -80,7 +90,7 @@
 
               <!-- Sessions -->
               <li>
-                <%= link_to active_sessions_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path == '/active_sessions' ? 'bg-gray-50 text-blue-600' : 'text-gray-700 hover:text-blue-600 hover:bg-gray-50' }" do %>
+                <%= link_to active_sessions_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path == '/active_sessions' ? 'bg-gray-50 dark:bg-gray-800 text-blue-600 dark:text-blue-400' : 'text-gray-700 dark:text-gray-300 hover:text-blue-600 dark:hover:text-blue-400 hover:bg-gray-50 dark:hover:bg-gray-800' }" do %>
                   <svg class="h-6 w-6 shrink-0" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
                     <path stroke-linecap="round" stroke-linejoin="round" d="M12 18v-5.25m0 0a6.01 6.01 0 001.5-.189m-1.5.189a6.01 6.01 0 01-1.5-.189m3.75 7.478a12.06 12.06 0 01-4.5 0m3.75 2.383a14.406 14.406 0 01-3 0M14.25 18v-.192c0-.983.658-1.823 1.508-2.316a7.5 7.5 0 10-7.517 0c.85.493 1.509 1.333 1.509 2.316V18" />
                   </svg>
@@ -88,9 +98,25 @@
                 <% end %>
               </li>
 
+              <!-- Dark Mode Toggle -->
+              <li data-controller="dark-mode">
+                <button type="button" data-action="click->dark-mode#toggle" class="group flex w-full gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 text-gray-700 dark:text-gray-300 hover:text-blue-600 dark:hover:text-blue-400 hover:bg-gray-50 dark:hover:bg-gray-800">
+                  <!-- Moon icon (shown in light mode) -->
+                  <svg data-dark-mode-target="icon" data-mode="light" class="h-6 w-6 shrink-0" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
+                    <path stroke-linecap="round" stroke-linejoin="round" d="M21.752 15.002A9.72 9.72 0 0118 15.75c-5.385 0-9.75-4.365-9.75-9.75 0-1.33.266-2.597.748-3.752A9.753 9.753 0 003 11.25C3 16.635 7.365 21 12.75 21a9.753 9.753 0 009.002-5.998z" />
+                  </svg>
+                  <!-- Sun icon (shown in dark mode) -->
+                  <svg data-dark-mode-target="icon" data-mode="dark" class="hidden h-6 w-6 shrink-0" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
+                    <path stroke-linecap="round" stroke-linejoin="round" d="M12 3v2.25m6.364.386l-1.591 1.591M21 12h-2.25m-.386 6.364l-1.591-1.591M12 18.75V21m-4.773-4.227l-1.591 1.591M5.25 12H3m4.227-4.773L5.636 5.636M15.75 12a3.75 3.75 0 11-7.5 0 3.75 3.75 0 017.5 0z" />
+                  </svg>
+                  <span data-dark-mode-target="icon" data-mode="light">Dark Mode</span>
+                  <span data-dark-mode-target="icon" data-mode="dark" class="hidden">Light Mode</span>
+                </button>
+              </li>
+
               <!-- Sign Out -->
               <li>
-                <%= link_to signout_path, data: { turbo_method: :delete, action: "click->mobile-sidebar#closeSidebar" }, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 text-red-600 hover:text-red-700 hover:bg-red-50" do %>
+                <%= link_to signout_path, data: { turbo_method: :delete, action: "click->mobile-sidebar#closeSidebar" }, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 text-red-600 dark:text-red-400 hover:text-red-700 dark:hover:text-red-300 hover:bg-red-50 dark:hover:bg-red-900/20" do %>
                   <svg class="h-6 w-6 shrink-0" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
                     <path stroke-linecap="round" stroke-linejoin="round" d="M15.75 9V5.25A2.25 2.25 0 0013.5 3h-6a2.25 2.25 0 00-2.25 2.25v13.5A2.25 2.25 0 007.5 21h6a2.25 2.25 0 002.25-2.25V15M12 9l-3 3m0 0l3 3m-3-3h12.75" />
                   </svg>
@@ -99,6 +125,10 @@
               </li>
             </ul>
           </li>
+
+          <li class="mt-auto pt-4 border-t border-gray-200 dark:border-gray-700">
+            <%= render "shared/version_info" %>
+          </li>
         </ul>
       </nav>
     </div>
@@ -124,16 +154,16 @@
           </button>
         </div>
 
-        <div class="flex grow flex-col gap-y-5 overflow-y-auto bg-white px-6 pb-2">
+        <div class="flex grow flex-col gap-y-5 overflow-y-auto bg-white dark:bg-gray-900 px-6 pb-2">
           <!-- Branding and User Info -->
-          <div class="flex flex-col pt-5 pb-4 border-b border-gray-200">
+          <div class="flex flex-col pt-5 pb-4 border-b border-gray-200 dark:border-gray-700">
             <div class="flex items-center">
-              <h1 class="text-2xl font-bold text-gray-900">Clinch</h1>
+              <h1 class="text-2xl font-bold text-gray-900 dark:text-gray-100">Clinch</h1>
             </div>
             <div class="mt-2">
-              <p class="text-sm text-gray-600 truncate"><%= user.email_address %></p>
+              <p class="text-sm text-gray-600 dark:text-gray-400 truncate"><%= user.email_address %></p>
               <% if user.admin? %>
-                <span class="inline-flex items-center rounded-full bg-blue-100 px-2 py-0.5 text-xs font-medium text-blue-800 mt-1">
+                <span class="inline-flex items-center rounded-full bg-blue-100 dark:bg-blue-900/50 px-2 py-0.5 text-xs font-medium text-blue-800 dark:text-blue-200 mt-1">
                   Administrator
                 </span>
               <% end %>
@@ -144,7 +174,7 @@
             <!-- Same nav items as desktop -->
             <ul role="list" class="-mx-2 space-y-1">
               <li>
-                <%= link_to root_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path == '/' ? 'bg-gray-50 text-blue-600' : 'text-gray-700 hover:text-blue-600 hover:bg-gray-50' }", data: { action: "click->mobile-sidebar#closeSidebar" } do %>
+                <%= link_to root_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path == '/' ? 'bg-gray-50 dark:bg-gray-800 text-blue-600 dark:text-blue-400' : 'text-gray-700 dark:text-gray-300 hover:text-blue-600 dark:hover:text-blue-400 hover:bg-gray-50 dark:hover:bg-gray-800' }", data: { action: "click->mobile-sidebar#closeSidebar" } do %>
                   <svg class="h-6 w-6 shrink-0" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
                     <path stroke-linecap="round" stroke-linejoin="round" d="M2.25 12l8.954-8.955c.44-.439 1.152-.439 1.591 0L21.75 12M4.5 9.75v10.125c0 .621.504 1.125 1.125 1.125H9.75v-4.875c0-.621.504-1.125 1.125-1.125h2.25c.621 0 1.125.504 1.125 1.125V21h4.125c.621 0 1.125-.504 1.125-1.125V9.75M8.25 21h8.25" />
                   </svg>
@@ -153,7 +183,7 @@
               </li>
               <% if user.admin? %>
                 <li>
-                  <%= link_to admin_users_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path.start_with?('/admin/users') ? 'bg-gray-50 text-blue-600' : 'text-gray-700 hover:text-blue-600 hover:bg-gray-50' }", data: { action: "click->mobile-sidebar#closeSidebar" } do %>
+                  <%= link_to admin_users_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path.start_with?('/admin/users') ? 'bg-gray-50 dark:bg-gray-800 text-blue-600 dark:text-blue-400' : 'text-gray-700 dark:text-gray-300 hover:text-blue-600 dark:hover:text-blue-400 hover:bg-gray-50 dark:hover:bg-gray-800' }", data: { action: "click->mobile-sidebar#closeSidebar" } do %>
                     <svg class="h-6 w-6 shrink-0" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
                       <path stroke-linecap="round" stroke-linejoin="round" d="M15 19.128a9.38 9.38 0 002.625.372 9.337 9.337 0 004.121-.952 4.125 4.125 0 00-7.533-2.493M15 19.128v-.003c0-1.113-.285-2.16-.786-3.07M15 19.128v.106A12.318 12.318 0 018.624 21c-2.331 0-4.512-.645-6.374-1.766l-.001-.109a6.375 6.375 0 0111.964-3.07M12 6.375a3.375 3.375 0 11-6.75 0 3.375 3.375 0 016.75 0zm8.25 2.25a2.625 2.625 0 11-5.25 0 2.625 2.625 0 015.25 0z" />
                     </svg>
@@ -161,7 +191,7 @@
                   <% end %>
                 </li>
                 <li>
-                  <%= link_to admin_applications_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path.start_with?('/admin/applications') ? 'bg-gray-50 text-blue-600' : 'text-gray-700 hover:text-blue-600 hover:bg-gray-50' }", data: { action: "click->mobile-sidebar#closeSidebar" } do %>
+                  <%= link_to admin_applications_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path.start_with?('/admin/applications') ? 'bg-gray-50 dark:bg-gray-800 text-blue-600 dark:text-blue-400' : 'text-gray-700 dark:text-gray-300 hover:text-blue-600 dark:hover:text-blue-400 hover:bg-gray-50 dark:hover:bg-gray-800' }", data: { action: "click->mobile-sidebar#closeSidebar" } do %>
                     <svg class="h-6 w-6 shrink-0" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
                       <path stroke-linecap="round" stroke-linejoin="round" d="M3.75 6A2.25 2.25 0 016 3.75h2.25A2.25 2.25 0 0110.5 6v2.25a2.25 2.25 0 01-2.25 2.25H6a2.25 2.25 0 01-2.25-2.25V6zM3.75 15.75A2.25 2.25 0 016 13.5h2.25a2.25 2.25 0 012.25 2.25V18a2.25 2.25 0 01-2.25 2.25H6A2.25 2.25 0 013.75 18v-2.25zM13.5 6a2.25 2.25 0 012.25-2.25H18A2.25 2.25 0 0120.25 6v2.25A2.25 2.25 0 0118 10.5h-2.25a2.25 2.25 0 01-2.25-2.25V6zM13.5 15.75a2.25 2.25 0 012.25-2.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-2.25A2.25 2.25 0 0113.5 18v-2.25z" />
                     </svg>
@@ -169,16 +199,24 @@
                   <% end %>
                 </li>
                 <li>
-                  <%= link_to admin_groups_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path.start_with?('/admin/groups') ? 'bg-gray-50 text-blue-600' : 'text-gray-700 hover:text-blue-600 hover:bg-gray-50' }", data: { action: "click->mobile-sidebar#closeSidebar" } do %>
+                  <%= link_to admin_groups_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path.start_with?('/admin/groups') ? 'bg-gray-50 dark:bg-gray-800 text-blue-600 dark:text-blue-400' : 'text-gray-700 dark:text-gray-300 hover:text-blue-600 dark:hover:text-blue-400 hover:bg-gray-50 dark:hover:bg-gray-800' }", data: { action: "click->mobile-sidebar#closeSidebar" } do %>
                     <svg class="h-6 w-6 shrink-0" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
                       <path stroke-linecap="round" stroke-linejoin="round" d="M18 18.72a9.094 9.094 0 003.741-.479 3 3 0 00-4.682-2.72m.94 3.198l.001.031c0 .225-.012.447-.037.666A11.944 11.944 0 0112 21c-2.17 0-4.207-.576-5.963-1.584A6.062 6.062 0 016 18.719m12 0a5.971 5.971 0 00-.941-3.197m0 0A5.995 5.995 0 0012 12.75a5.995 5.995 0 00-5.058 2.772m0 0a3 3 0 00-4.681 2.72 8.986 8.986 0 003.74.477m.94-3.197a5.971 5.971 0 00-.94 3.197M15 6.75a3 3 0 11-6 0 3 3 0 016 0zm6 3a2.25 2.25 0 11-4.5 0 2.25 2.25 0 014.5 0zm-13.5 0a2.25 2.25 0 11-4.5 0 2.25 2.25 0 014.5 0z" />
                     </svg>
                     Groups
                   <% end %>
                 </li>
+                <li>
+                  <%= link_to admin_access_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path.start_with?('/admin/access') ? 'bg-gray-50 dark:bg-gray-800 text-blue-600 dark:text-blue-400' : 'text-gray-700 dark:text-gray-300 hover:text-blue-600 dark:hover:text-blue-400 hover:bg-gray-50 dark:hover:bg-gray-800' }", data: { action: "click->mobile-sidebar#closeSidebar" } do %>
+                    <svg class="h-6 w-6 shrink-0" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
+                      <path stroke-linecap="round" stroke-linejoin="round" d="M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z" />
+                    </svg>
+                    Access check
+                  <% end %>
+                </li>
               <% end %>
               <li>
-                <%= link_to profile_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path == '/profile' ? 'bg-gray-50 text-blue-600' : 'text-gray-700 hover:text-blue-600 hover:bg-gray-50' }", data: { action: "click->mobile-sidebar#closeSidebar" } do %>
+                <%= link_to profile_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path == '/profile' ? 'bg-gray-50 dark:bg-gray-800 text-blue-600 dark:text-blue-400' : 'text-gray-700 dark:text-gray-300 hover:text-blue-600 dark:hover:text-blue-400 hover:bg-gray-50 dark:hover:bg-gray-800' }", data: { action: "click->mobile-sidebar#closeSidebar" } do %>
                   <svg class="h-6 w-6 shrink-0" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
                     <path stroke-linecap="round" stroke-linejoin="round" d="M17.982 18.725A7.488 7.488 0 0012 15.75a7.488 7.488 0 00-5.982 2.975m11.963 0a9 9 0 10-11.963 0m11.963 0A8.966 8.966 0 0112 21a8.966 8.966 0 01-5.982-2.275M15 9.75a3 3 0 11-6 0 3 3 0 016 0z" />
                   </svg>
@@ -186,15 +224,30 @@
                 <% end %>
               </li>
               <li>
-                <%= link_to active_sessions_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path == '/active_sessions' ? 'bg-gray-50 text-blue-600' : 'text-gray-700 hover:text-blue-600 hover:bg-gray-50' }", data: { action: "click->mobile-sidebar#closeSidebar" } do %>
+                <%= link_to active_sessions_path, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 #{ current_path == '/active_sessions' ? 'bg-gray-50 dark:bg-gray-800 text-blue-600 dark:text-blue-400' : 'text-gray-700 dark:text-gray-300 hover:text-blue-600 dark:hover:text-blue-400 hover:bg-gray-50 dark:hover:bg-gray-800' }", data: { action: "click->mobile-sidebar#closeSidebar" } do %>
                   <svg class="h-6 w-6 shrink-0" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
                     <path stroke-linecap="round" stroke-linejoin="round" d="M12 18v-5.25m0 0a6.01 6.01 0 001.5-.189m-1.5.189a6.01 6.01 0 01-1.5-.189m3.75 7.478a12.06 12.06 0 01-4.5 0m3.75 2.383a14.406 14.406 0 01-3 0M14.25 18v-.192c0-.983.658-1.823 1.508-2.316a7.5 7.5 0 10-7.517 0c.85.493 1.509 1.333 1.509 2.316V18" />
                   </svg>
                   Sessions
                 <% end %>
               </li>
+
+              <!-- Dark Mode Toggle (mobile) -->
+              <li data-controller="dark-mode">
+                <button type="button" data-action="click->dark-mode#toggle" class="group flex w-full gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 text-gray-700 dark:text-gray-300 hover:text-blue-600 dark:hover:text-blue-400 hover:bg-gray-50 dark:hover:bg-gray-800">
+                  <svg data-dark-mode-target="icon" data-mode="light" class="h-6 w-6 shrink-0" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
+                    <path stroke-linecap="round" stroke-linejoin="round" d="M21.752 15.002A9.72 9.72 0 0118 15.75c-5.385 0-9.75-4.365-9.75-9.75 0-1.33.266-2.597.748-3.752A9.753 9.753 0 003 11.25C3 16.635 7.365 21 12.75 21a9.753 9.753 0 009.002-5.998z" />
+                  </svg>
+                  <svg data-dark-mode-target="icon" data-mode="dark" class="hidden h-6 w-6 shrink-0" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
+                    <path stroke-linecap="round" stroke-linejoin="round" d="M12 3v2.25m6.364.386l-1.591 1.591M21 12h-2.25m-.386 6.364l-1.591-1.591M12 18.75V21m-4.773-4.227l-1.591 1.591M5.25 12H3m4.227-4.773L5.636 5.636M15.75 12a3.75 3.75 0 11-7.5 0 3.75 3.75 0 017.5 0z" />
+                  </svg>
+                  <span data-dark-mode-target="icon" data-mode="light">Dark Mode</span>
+                  <span data-dark-mode-target="icon" data-mode="dark" class="hidden">Light Mode</span>
+                </button>
+              </li>
+
               <li>
-                <%= link_to signout_path, data: { turbo_method: :delete, action: "click->mobile-sidebar#closeSidebar" }, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 text-red-600 hover:text-red-700 hover:bg-red-50" do %>
+                <%= link_to signout_path, data: { turbo_method: :delete, action: "click->mobile-sidebar#closeSidebar" }, class: "group flex gap-x-3 rounded-md p-2 text-sm font-semibold leading-6 text-red-600 dark:text-red-400 hover:text-red-700 dark:hover:text-red-300 hover:bg-red-50 dark:hover:bg-red-900/20" do %>
                   <svg class="h-6 w-6 shrink-0" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
                     <path stroke-linecap="round" stroke-linejoin="round" d="M15.75 9V5.25A2.25 2.25 0 0013.5 3h-6a2.25 2.25 0 00-2.25 2.25v13.5A2.25 2.25 0 007.5 21h6a2.25 2.25 0 002.25-2.25V15M12 9l-3 3m0 0l3 3m-3-3h12.75" />
                   </svg>
@@ -202,6 +255,10 @@
                 <% end %>
               </li>
             </ul>
+
+            <div class="mt-6 pt-4 border-t border-gray-200 dark:border-gray-700">
+              <%= render "shared/version_info" %>
+            </div>
           </nav>
         </div>
       </div>

app/views/shared/_version_info.html.erb

@@ -0,0 +1,4 @@
+<div class="px-2 text-xs text-gray-500 dark:text-gray-500 space-y-0.5">
+  <div>Clinch <%= Clinch::VERSION %></div>
+  <div>Rails <%= Rails.version %> &middot; Ruby <%= RUBY_VERSION %></div>
+</div>

app/views/totp/backup_codes.html.erb

@@ -1,42 +1,42 @@
 <div class="max-w-2xl mx-auto" data-controller="backup-codes" data-backup-codes-codes-value="<%= @backup_codes.to_json %>">
   <div class="mb-8">
-    <h1 class="text-3xl font-bold text-gray-900">Backup Codes</h1>
+    <h1 class="text-3xl font-bold text-gray-900 dark:text-gray-100">Backup Codes</h1>
-    <p class="mt-2 text-sm text-gray-600">
+    <p class="mt-2 text-sm text-gray-600 dark:text-gray-400">
       Save these backup codes in a safe place. Each code can only be used once.
     </p>
   </div>
 
-  <div class="bg-white shadow sm:rounded-lg">
+  <div class="bg-white dark:bg-gray-800 shadow sm:rounded-lg">
     <div class="px-4 py-5 sm:p-6">
-      <div class="rounded-md bg-yellow-50 p-4 mb-6">
+      <div class="rounded-md bg-yellow-50 dark:bg-yellow-900/30 p-4 mb-6">
         <div class="flex">
           <svg class="h-5 w-5 text-yellow-400 mr-3 flex-shrink-0" viewBox="0 0 20 20" fill="currentColor">
             <path fill-rule="evenodd" d="M8.485 2.495c.673-1.167 2.357-1.167 3.03 0l6.28 10.875c.673 1.167-.17 2.625-1.516 2.625H3.72c-1.347 0-2.189-1.458-1.515-2.625L8.485 2.495zM10 5a.75.75 0 01.75.75v3.5a.75.75 0 01-1.5 0v-3.5A.75.75 0 0110 5zm0 9a1 1 0 100-2 1 1 0 000 2z" clip-rule="evenodd" />
           </svg>
-          <div class="text-sm text-yellow-800">
+          <div class="text-sm text-yellow-800 dark:text-yellow-200">
             <p class="font-medium">Save these codes now!</p>
             <p class="mt-1">Store them somewhere safe. You won't be able to see them again without re-entering your password.</p>
           </div>
         </div>
       </div>
 
-      <div class="grid grid-cols-2 gap-4 p-6 bg-gray-50 rounded-lg font-mono">
+      <div class="grid grid-cols-2 gap-4 p-6 bg-gray-50 dark:bg-gray-700 rounded-lg font-mono">
         <% @backup_codes.each do |code| %>
-          <div class="text-center text-lg tracking-wider py-2 px-4 bg-white rounded border border-gray-200">
+          <div class="text-center text-lg tracking-wider py-2 px-4 bg-white dark:bg-gray-800 rounded border border-gray-200 dark:border-gray-700 dark:text-gray-100">
             <%= code %>
           </div>
         <% end %>
       </div>
 
       <div class="mt-6 flex gap-3">
-        <button data-action="click->backup-codes#download" class="inline-flex items-center rounded-md border border-gray-300 bg-white py-2 px-4 text-sm font-medium text-gray-700 shadow-sm hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2">
+        <button data-action="click->backup-codes#download" class="inline-flex items-center rounded-md border border-gray-300 dark:border-gray-600 bg-white dark:bg-gray-700 py-2 px-4 text-sm font-medium text-gray-700 dark:text-gray-200 shadow-sm hover:bg-gray-50 dark:hover:bg-gray-600 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900">
           <svg class="h-4 w-4 mr-2" fill="none" viewBox="0 0 24 24" stroke="currentColor">
             <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 16v1a3 3 0 003 3h10a3 3 0 003-3v-1m-4-4l-4 4m0 0l-4-4m4 4V4" />
           </svg>
           Download Codes
         </button>
 
-        <button data-action="click->backup-codes#print" class="inline-flex items-center rounded-md border border-gray-300 bg-white py-2 px-4 text-sm font-medium text-gray-700 shadow-sm hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2">
+        <button data-action="click->backup-codes#print" class="inline-flex items-center rounded-md border border-gray-300 dark:border-gray-600 bg-white dark:bg-gray-700 py-2 px-4 text-sm font-medium text-gray-700 dark:text-gray-200 shadow-sm hover:bg-gray-50 dark:hover:bg-gray-600 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900">
           <svg class="h-4 w-4 mr-2" fill="none" viewBox="0 0 24 24" stroke="currentColor">
             <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M17 17h2a2 2 0 002-2v-4a2 2 0 00-2-2H5a2 2 0 00-2 2v4a2 2 0 002 2h2m2 4h6a2 2 0 002-2v-4a2 2 0 00-2-2H9a2 2 0 00-2 2v4a2 2 0 002 2zm8-12V5a2 2 0 00-2-2H9a2 2 0 00-2 2v4h10z" />
           </svg>
@@ -47,13 +47,12 @@
       <div class="mt-8">
         <% if @auto_signin_pending %>
           <%= button_to "Continue to Sign In", complete_totp_setup_path, method: :post,
-              class: "inline-flex justify-center rounded-md border border-transparent bg-blue-600 py-2 px-4 text-sm font-medium text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2" %>
+              class: "inline-flex justify-center rounded-md border border-transparent bg-blue-600 py-2 px-4 text-sm font-medium text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900" %>
         <% else %>
           <%= link_to "Done", profile_path,
-              class: "inline-flex justify-center rounded-md border border-transparent bg-blue-600 py-2 px-4 text-sm font-medium text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2" %>
+              class: "inline-flex justify-center rounded-md border border-transparent bg-blue-600 py-2 px-4 text-sm font-medium text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900" %>
         <% end %>
       </div>
     </div>
   </div>
 </div>
-

app/views/totp/new.html.erb

@@ -1,17 +1,17 @@
 <div class="max-w-2xl mx-auto">
   <div class="mb-8">
-    <h1 class="text-3xl font-bold text-gray-900">Enable Two-Factor Authentication</h1>
+    <h1 class="text-3xl font-bold text-gray-900 dark:text-gray-100">Enable Two-Factor Authentication</h1>
-    <p class="mt-2 text-sm text-gray-600">
+    <p class="mt-2 text-sm text-gray-600 dark:text-gray-400">
       Scan the QR code below with your authenticator app, then enter the verification code to confirm.
     </p>
   </div>
 
-  <div class="bg-white shadow sm:rounded-lg">
+  <div class="bg-white dark:bg-gray-800 shadow sm:rounded-lg">
     <div class="px-4 py-5 sm:p-6">
       <!-- Step 1: Scan QR Code -->
       <div class="mb-8">
-        <h3 class="text-lg font-medium text-gray-900 mb-4">Step 1: Scan QR Code</h3>
+        <h3 class="text-lg font-medium text-gray-900 dark:text-gray-100 mb-4">Step 1: Scan QR Code</h3>
-        <div class="flex justify-center p-6 bg-gray-50 rounded-lg">
+        <div class="flex justify-center p-6 bg-gray-50 dark:bg-gray-700 rounded-lg">
           <%= @qr_code.as_svg(
                 module_size: 4,
                 color: "000",
@@ -19,26 +19,24 @@
                 standalone: true
               ).html_safe %>
         </div>
-        <p class="mt-4 text-sm text-gray-600 text-center">
+        <p class="mt-4 text-sm text-gray-600 dark:text-gray-400 text-center">
           Use an authenticator app like Google Authenticator, Authy, or 1Password to scan this code.
         </p>
       </div>
 
       <!-- Manual Entry Option -->
-      <div class="mb-8 p-4 bg-blue-50 rounded-lg">
+      <div class="mb-8 p-4 bg-blue-50 dark:bg-blue-900/30 rounded-lg">
-        <p class="text-sm font-medium text-blue-900 mb-2">Can't scan the QR code?</p>
+        <p class="text-sm font-medium text-blue-900 dark:text-blue-200 mb-2">Can't scan the QR code?</p>
-        <p class="text-sm text-blue-800">Enter this key manually in your authenticator app:</p>
+        <p class="text-sm text-blue-800 dark:text-blue-300">Enter this key manually in your authenticator app:</p>
-        <code class="mt-2 block p-2 bg-white rounded text-sm font-mono break-all"><%= @totp_secret %></code>
+        <code class="mt-2 block p-2 bg-white dark:bg-gray-700 dark:text-gray-200 rounded text-sm font-mono break-all"><%= @totp_secret %></code>
       </div>
 
       <!-- Step 2: Verify -->
       <div>
-        <h3 class="text-lg font-medium text-gray-900 mb-4">Step 2: Verify</h3>
+        <h3 class="text-lg font-medium text-gray-900 dark:text-gray-100 mb-4">Step 2: Verify</h3>
         <%= form_with url: totp_path, method: :post, class: "space-y-4" do |form| %>
-          <%= hidden_field_tag :totp_secret, @totp_secret %>
-
           <div>
-            <%= label_tag :code, "Verification Code", class: "block text-sm font-medium text-gray-700" %>
+            <%= label_tag :code, "Verification Code", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
             <%= text_field_tag :code,
                 nil,
                 placeholder: "000000",
@@ -46,27 +44,27 @@
                 required: true,
                 autofocus: true,
                 autocomplete: "off",
-                class: "mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 text-center text-2xl tracking-widest font-mono" %>
+                class: "mt-1 block w-full rounded-md border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 shadow-sm focus:border-blue-500 focus:ring-blue-500 text-center text-2xl tracking-widest font-mono" %>
-            <p class="mt-1 text-sm text-gray-500">Enter the 6-digit code from your authenticator app</p>
+            <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">Enter the 6-digit code from your authenticator app</p>
           </div>
 
           <div class="flex gap-3">
             <%= form.submit "Verify and Enable 2FA",
-                class: "inline-flex justify-center rounded-md border border-transparent bg-blue-600 py-2 px-4 text-sm font-medium text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2" %>
+                class: "inline-flex justify-center rounded-md border border-transparent bg-blue-600 py-2 px-4 text-sm font-medium text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900" %>
             <%= link_to "Cancel", profile_path,
-                class: "inline-flex justify-center rounded-md border border-gray-300 bg-white py-2 px-4 text-sm font-medium text-gray-700 shadow-sm hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2" %>
+                class: "inline-flex justify-center rounded-md border border-gray-300 dark:border-gray-600 bg-white dark:bg-gray-700 py-2 px-4 text-sm font-medium text-gray-700 dark:text-gray-200 shadow-sm hover:bg-gray-50 dark:hover:bg-gray-600 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900" %>
           </div>
         <% end %>
       </div>
     </div>
   </div>
 
-  <div class="mt-6 p-4 bg-yellow-50 rounded-lg">
+  <div class="mt-6 p-4 bg-yellow-50 dark:bg-yellow-900/30 rounded-lg">
     <div class="flex">
       <svg class="h-5 w-5 text-yellow-400 mr-3 flex-shrink-0" viewBox="0 0 20 20" fill="currentColor">
         <path fill-rule="evenodd" d="M8.485 2.495c.673-1.167 2.357-1.167 3.03 0l6.28 10.875c.673 1.167-.17 2.625-1.516 2.625H3.72c-1.347 0-2.189-1.458-1.515-2.625L8.485 2.495zM10 5a.75.75 0 01.75.75v3.5a.75.75 0 01-1.5 0v-3.5A.75.75 0 0110 5zm0 9a1 1 0 100-2 1 1 0 000 2z" clip-rule="evenodd" />
       </svg>
-      <div class="text-sm text-yellow-800">
+      <div class="text-sm text-yellow-800 dark:text-yellow-200">
         <p class="font-medium">Important: Save your backup codes</p>
         <p class="mt-1">After verifying, you'll be shown backup codes. Save these in a safe place - they can be used to access your account if you lose your device.</p>
       </div>

app/views/totp/regenerate_backup_codes.html.erb

@@ -1,19 +1,19 @@
 <div class="max-w-2xl mx-auto">
   <div class="mb-8">
-    <h1 class="text-3xl font-bold text-gray-900">Regenerate Backup Codes</h1>
+    <h1 class="text-3xl font-bold text-gray-900 dark:text-gray-100">Regenerate Backup Codes</h1>
-    <p class="mt-2 text-sm text-gray-600">
+    <p class="mt-2 text-sm text-gray-600 dark:text-gray-400">
       This will invalidate all existing backup codes and generate new ones.
     </p>
   </div>
 
-  <div class="bg-white shadow sm:rounded-lg">
+  <div class="bg-white dark:bg-gray-800 shadow sm:rounded-lg">
     <div class="px-4 py-5 sm:p-6">
-      <div class="rounded-md bg-yellow-50 p-4 mb-6">
+      <div class="rounded-md bg-yellow-50 dark:bg-yellow-900/30 p-4 mb-6">
         <div class="flex">
           <svg class="h-5 w-5 text-yellow-400 mr-3 flex-shrink-0" viewBox="0 0 20 20" fill="currentColor">
             <path fill-rule="evenodd" d="M8.485 2.495c.673-1.167 2.357-1.167 3.03 0l6.28 10.875c.673 1.167-.17 2.625-1.516 2.625H3.72c-1.347 0-2.189-1.458-1.515-2.625L8.485 2.495zM10 5a.75.75 0 01.75.75v3.5a.75.75 0 01-1.5 0v-3.5A.75.75 0 0110 5zm0 9a1 1 0 100-2 1 1 0 000 2z" clip-rule="evenodd" />
           </svg>
-          <div class="text-sm text-yellow-800">
+          <div class="text-sm text-yellow-800 dark:text-yellow-200">
             <p class="font-medium">Important Security Notice</p>
             <p class="mt-1">All your current backup codes will become invalid after this action. Make sure you're ready to save the new codes.</p>
           </div>
@@ -22,22 +22,22 @@
 
       <%= form_with(url: create_new_backup_codes_totp_path, method: :post, class: "space-y-6") do |form| %>
         <div>
-          <%= form.label :password, "Enter your password to confirm", class: "block text-sm font-medium text-gray-700" %>
+          <%= form.label :password, "Enter your password to confirm", class: "block text-sm font-medium text-gray-700 dark:text-gray-300" %>
           <div class="mt-1">
             <%= form.password_field :password, required: true,
-                class: "block w-full appearance-none rounded-md border border-gray-300 px-3 py-2 placeholder-gray-400 shadow-sm focus:border-blue-500 focus:outline-none focus:ring-blue-500 sm:text-sm" %>
+                class: "block w-full appearance-none rounded-md border border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100 px-3 py-2 placeholder-gray-400 dark:placeholder-gray-500 shadow-sm focus:border-blue-500 focus:outline-none focus:ring-blue-500 sm:text-sm" %>
           </div>
-          <p class="mt-2 text-sm text-gray-500">
+          <p class="mt-2 text-sm text-gray-500 dark:text-gray-400">
             This is required to verify your identity before regenerating backup codes.
           </p>
         </div>
 
         <div class="flex gap-3">
           <%= form.submit "Generate New Backup Codes",
-              class: "inline-flex justify-center rounded-md border border-transparent bg-blue-600 py-2 px-4 text-sm font-medium text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2" %>
+              class: "inline-flex justify-center rounded-md border border-transparent bg-blue-600 py-2 px-4 text-sm font-medium text-white shadow-sm hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900" %>
 
           <%= link_to "Cancel", profile_path,
-              class: "inline-flex justify-center rounded-md border border-gray-300 bg-white py-2 px-4 text-sm font-medium text-gray-700 shadow-sm hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2" %>
+              class: "inline-flex justify-center rounded-md border border-gray-300 dark:border-gray-600 bg-white dark:bg-gray-700 py-2 px-4 text-sm font-medium text-gray-700 dark:text-gray-200 shadow-sm hover:bg-gray-50 dark:hover:bg-gray-600 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus:ring-offset-gray-900" %>
         </div>
       <% end %>
     </div>

app/views/totp_mailer/enabled.html.erb

@@ -0,0 +1,16 @@
+<p>Hello,</p>
+
+<p>
+  Two-factor authentication was just enabled on the Clinch account for
+  <strong><%= @user.email_address %></strong>.
+</p>
+
+<p>
+  If you did this, you can ignore this email.
+</p>
+
+<p>
+  If you did <strong>not</strong> do this, your account may have been
+  accessed by someone else. Reset your password immediately and contact
+  your administrator.
+</p>

app/views/totp_mailer/enabled.text.erb

@@ -0,0 +1,9 @@
+Hello,
+
+Two-factor authentication was just enabled on the Clinch account for
+<%= @user.email_address %>.
+
+If you did this, you can ignore this email.
+
+If you did NOT do this, your account may have been accessed by someone
+else. Reset your password immediately and contact your administrator.

app/views/users/new.html.erb

@@ -1,41 +1,41 @@
 <div class="mx-auto md:w-2/3 w-full">
   <div class="mb-8">
     <h1 class="font-bold text-4xl">Welcome to Clinch</h1>
-    <p class="mt-2 text-gray-600">Create your admin account to get started</p>
+    <p class="mt-2 text-gray-600 dark:text-gray-400">Create your admin account to get started</p>
   </div>
 
   <%= form_with model: @user, url: signup_path, class: "contents", data: { controller: "form-errors" } do |form| %>
     <%= render "shared/form_errors", form: form %>
 
     <div class="my-5">
-      <%= form.label :email_address, class: "block font-medium text-sm text-gray-700" %>
+      <%= form.label :email_address, class: "block font-medium text-sm text-gray-700 dark:text-gray-300" %>
       <%= form.email_field :email_address,
           required: true,
           autofocus: true,
           autocomplete: "email",
           placeholder: "admin@example.com",
-          class: "block shadow-sm rounded-md border border-gray-400 focus:outline-blue-600 px-3 py-2 mt-2 w-full" %>
+          class: "block shadow-sm rounded-md border border-gray-400 focus:outline-blue-600 px-3 py-2 mt-2 w-full dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100" %>
     </div>
 
     <div class="my-5">
-      <%= form.label :password, class: "block font-medium text-sm text-gray-700" %>
+      <%= form.label :password, class: "block font-medium text-sm text-gray-700 dark:text-gray-300" %>
       <%= form.password_field :password,
           required: true,
           autocomplete: "new-password",
           placeholder: "Enter a strong password",
           maxlength: 72,
-          class: "block shadow-sm rounded-md border border-gray-400 focus:outline-blue-600 px-3 py-2 mt-2 w-full" %>
+          class: "block shadow-sm rounded-md border border-gray-400 focus:outline-blue-600 px-3 py-2 mt-2 w-full dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100" %>
-      <p class="mt-1 text-sm text-gray-500">Must be at least 8 characters</p>
+      <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">Must be at least 8 characters</p>
     </div>
 
     <div class="my-5">
-      <%= form.label :password_confirmation, "Confirm Password", class: "block font-medium text-sm text-gray-700" %>
+      <%= form.label :password_confirmation, "Confirm Password", class: "block font-medium text-sm text-gray-700 dark:text-gray-300" %>
       <%= form.password_field :password_confirmation,
           required: true,
           autocomplete: "new-password",
           placeholder: "Re-enter your password",
           maxlength: 72,
-          class: "block shadow-sm rounded-md border border-gray-400 focus:outline-blue-600 px-3 py-2 mt-2 w-full" %>
+          class: "block shadow-sm rounded-md border border-gray-400 focus:outline-blue-600 px-3 py-2 mt-2 w-full dark:border-gray-600 dark:bg-gray-800 dark:text-gray-100" %>
     </div>
 
     <div class="my-5">
@@ -43,8 +43,8 @@
           class: "w-full rounded-md px-3.5 py-2.5 bg-blue-600 hover:bg-blue-500 text-white font-medium cursor-pointer" %>
     </div>
 
-    <div class="mt-4 p-4 bg-blue-50 rounded-lg">
+    <div class="mt-4 p-4 bg-blue-50 rounded-lg dark:bg-blue-900/30">
-      <p class="text-sm text-blue-900">
+      <p class="text-sm text-blue-900 dark:text-blue-200">
         <strong>Note:</strong> This is a first-run setup. You're creating the initial administrator account.
         After this, you'll be able to invite other users from the admin dashboard.
       </p>

config/deploy.yml

@@ -38,10 +38,6 @@ env:
   secret:
     - RAILS_MASTER_KEY
   clear:
-    # Run the Solid Queue Supervisor inside the web server's Puma process to do jobs.
-    # When you start using multiple servers, you should split out job processing to a dedicated machine.
-    SOLID_QUEUE_IN_PUMA: true
-
     # Set number of processes dedicated to Solid Queue (default: 1)
     # JOB_CONCURRENCY: 3