Fix LB Sync tab card styling — dead CSS + ID collision

Two interacting bugs that left LB Sync-tab cards rendering with a
solid orange gradient background instead of the dark glass style
every other Sync-page card uses:

1. **Duplicate element id** ``listenbrainz-tab-content``: the new
   Sync-tab content div reused the same id the Discover page's
   pre-existing LB section already owned. Two elements with the
   same id is invalid HTML, and ``getElementById`` in the refresh
   loop was hitting the Sync version first while ``initialize
   SyncPage``'s ``${tabId}-tab-content`` lookup could race against
   it. Renamed the Sync-page tab id + ``data-tab`` attribute to
   ``listenbrainz-sync`` (matches the existing ``${tabId}-tab-
   content`` convention so the lookup becomes
   ``listenbrainz-sync-tab-content``). Discover-page LB tab
   keeps its original id untouched.

2. **Dead ``.listenbrainz-playlist-card`` rule** at style.css
   L36155 painting a solid ``linear-gradient(#eb743b → #d26230)``
   over the card. That class was orphaned — no JS or HTML
   instantiated it before Phase 1c.1 — but it sat at higher
   source order than my unified ``.youtube-playlist-card,
   .tidal-playlist-card, ...`` rule, so the bare-class selector
   won the cascade and overwrote the dark glass background.
   Also removed the matching dead ``.listenbrainz-icon { font-
   size: 48px }`` rule and its local ``@keyframes pulse`` copy
   (the keyframes are defined in four other live blocks).

3. **Missing LB selectors in unified inner-element rules**:
   ``.listenbrainz-playlist-card`` was only added to the OUTER
   card selector group in the first pass — the inner
   ``.playlist-card-icon`` / ``.playlist-card-content`` /
   ``.playlist-card-name`` / ``.playlist-card-info`` /
   ``.playlist-card-action-btn`` (+ ::before, :hover, :disabled)
   selector groups were left out, so the inner elements lost all
   their styling. Bulk-added LB to every group so the card
   inherits the full glass shell the other sources get, with a
   brand-orange ``rgba(235, 116, 59, ...)`` accent matching the
   Tidal / Deezer / Spotify-public pattern.

webui/index.html

@@ -1027,7 +1027,7 @@
                             <button class="sync-tab-button" data-tab="beatport">
                                 <span class="tab-icon beatport-icon"></span> Beatport
                             </button>
-                            <button class="sync-tab-button" data-tab="listenbrainz">
+                            <button class="sync-tab-button" data-tab="listenbrainz-sync">
                                 <span class="tab-icon listenbrainz-icon"></span> ListenBrainz
                             </button>
                             <button class="sync-tab-button" data-tab="import-file">
@@ -1915,8 +1915,8 @@
                             </div>
                         </div>
 
-                        <!-- ListenBrainz Tab Content -->
+                        <!-- ListenBrainz Sync Tab Content (separate ID from Discover-page LB UI) -->
-                        <div class="sync-tab-content" id="listenbrainz-tab-content">
+                        <div class="sync-tab-content" id="listenbrainz-sync-tab-content">
                             <div class="playlist-header">
                                 <h3>Your ListenBrainz Playlists</h3>
                                 <div class="listenbrainz-sub-tabs">

webui/static/style.css

@@ -17611,21 +17611,25 @@ body.helper-mode-active #dashboard-activity-feed:hover {
 .tidal-playlist-card .playlist-card-icon { background: rgba(255, 102, 0, 0.12); border: 1px solid rgba(255, 102, 0, 0.2); color: #ff6600; font-size: 16px; }
 .deezer-playlist-card .playlist-card-icon { background: rgba(162, 56, 255, 0.12); border: 1px solid rgba(162, 56, 255, 0.2); color: #a238ff; }
 .spotify-public-card .playlist-card-icon { background: rgba(29, 185, 84, 0.12); border: 1px solid rgba(29, 185, 84, 0.2); color: #1DB954; }
+.listenbrainz-playlist-card .playlist-card-icon { background: rgba(235, 116, 59, 0.12); border: 1px solid rgba(235, 116, 59, 0.2); color: #eb743b; }
 
 .youtube-playlist-card .playlist-card-content,
 .tidal-playlist-card .playlist-card-content,
 .deezer-playlist-card .playlist-card-content,
-.spotify-public-card .playlist-card-content { flex: 1; min-width: 0; }
+.spotify-public-card .playlist-card-content,
+.listenbrainz-playlist-card .playlist-card-content { flex: 1; min-width: 0; }
 
 .youtube-playlist-card .playlist-card-name,
 .tidal-playlist-card .playlist-card-name,
 .deezer-playlist-card .playlist-card-name,
-.spotify-public-card .playlist-card-name { font-size: 15px; font-weight: 600; color: rgba(255, 255, 255, 0.9); margin-bottom: 4px; }
+.spotify-public-card .playlist-card-name,
+.listenbrainz-playlist-card .playlist-card-name { font-size: 15px; font-weight: 600; color: rgba(255, 255, 255, 0.9); margin-bottom: 4px; }
 
 .youtube-playlist-card .playlist-card-info,
 .tidal-playlist-card .playlist-card-info,
 .deezer-playlist-card .playlist-card-info,
-.spotify-public-card .playlist-card-info { font-size: 13px; color: rgba(255, 255, 255, 0.4); display: flex; align-items: center; gap: 10px; }
+.spotify-public-card .playlist-card-info,
+.listenbrainz-playlist-card .playlist-card-info { font-size: 13px; color: rgba(255, 255, 255, 0.4); display: flex; align-items: center; gap: 10px; }
 
 .youtube-playlist-card .playlist-card-track-count { color: rgba(255, 255, 255, 0.7); }
 .youtube-playlist-card .playlist-card-phase-text { font-weight: 500; }
@@ -17635,7 +17639,8 @@ body.helper-mode-active #dashboard-activity-feed:hover {
 .youtube-playlist-card .playlist-card-action-btn,
 .tidal-playlist-card .playlist-card-action-btn,
 .deezer-playlist-card .playlist-card-action-btn,
-.spotify-public-card .playlist-card-action-btn {
+.spotify-public-card .playlist-card-action-btn,
+.listenbrainz-playlist-card .playlist-card-action-btn {
     background: linear-gradient(135deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.02) 100%);
     border: 1px solid rgba(255, 255, 255, 0.1);
     color: rgba(255, 255, 255, 0.8);
@@ -17654,7 +17659,8 @@ body.helper-mode-active #dashboard-activity-feed:hover {
 .youtube-playlist-card .playlist-card-action-btn::before,
 .tidal-playlist-card .playlist-card-action-btn::before,
 .deezer-playlist-card .playlist-card-action-btn::before,
-.spotify-public-card .playlist-card-action-btn::before {
+.spotify-public-card .playlist-card-action-btn::before,
+.listenbrainz-playlist-card .playlist-card-action-btn::before {
     content: '';
     position: absolute;
     inset: 0;
@@ -17667,21 +17673,25 @@ body.helper-mode-active #dashboard-activity-feed:hover {
 .tidal-playlist-card .playlist-card-action-btn::before { background: linear-gradient(135deg, rgba(255, 102, 0, 0.2), rgba(255, 102, 0, 0.05)); }
 .deezer-playlist-card .playlist-card-action-btn::before { background: linear-gradient(135deg, rgba(162, 56, 255, 0.2), rgba(162, 56, 255, 0.05)); }
 .spotify-public-card .playlist-card-action-btn::before { background: linear-gradient(135deg, rgba(29, 185, 84, 0.2), rgba(29, 185, 84, 0.05)); }
+.listenbrainz-playlist-card .playlist-card-action-btn::before { background: linear-gradient(135deg, rgba(235, 116, 59, 0.2), rgba(235, 116, 59, 0.05)); }
 
 .youtube-playlist-card .playlist-card-action-btn:hover:not(:disabled)::before,
 .tidal-playlist-card .playlist-card-action-btn:hover:not(:disabled)::before,
 .deezer-playlist-card .playlist-card-action-btn:hover:not(:disabled)::before,
-.spotify-public-card .playlist-card-action-btn:hover:not(:disabled)::before { opacity: 1; }
+.spotify-public-card .playlist-card-action-btn:hover:not(:disabled)::before,
+.listenbrainz-playlist-card .playlist-card-action-btn:hover:not(:disabled)::before { opacity: 1; }
 
 .youtube-playlist-card .playlist-card-action-btn:hover:not(:disabled) { color: #fff; border-color: rgba(255, 0, 0, 0.35); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(255, 0, 0, 0.15); }
 .tidal-playlist-card .playlist-card-action-btn:hover:not(:disabled) { color: #fff; border-color: rgba(255, 102, 0, 0.35); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(255, 102, 0, 0.15); }
 .deezer-playlist-card .playlist-card-action-btn:hover:not(:disabled) { color: #fff; border-color: rgba(162, 56, 255, 0.35); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(162, 56, 255, 0.15); }
 .spotify-public-card .playlist-card-action-btn:hover:not(:disabled) { color: #fff; border-color: rgba(29, 185, 84, 0.35); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(29, 185, 84, 0.15); }
+.listenbrainz-playlist-card .playlist-card-action-btn:hover:not(:disabled) { color: #fff; border-color: rgba(235, 116, 59, 0.35); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(235, 116, 59, 0.15); }
 
 .youtube-playlist-card .playlist-card-action-btn:disabled,
 .tidal-playlist-card .playlist-card-action-btn:disabled,
 .deezer-playlist-card .playlist-card-action-btn:disabled,
-.spotify-public-card .playlist-card-action-btn:disabled {
+.spotify-public-card .playlist-card-action-btn:disabled,
+.listenbrainz-playlist-card .playlist-card-action-btn:disabled {
     background: rgba(255, 255, 255, 0.03);
     border-color: rgba(255, 255, 255, 0.04);
     color: rgba(255, 255, 255, 0.2);
@@ -36142,44 +36152,10 @@ div.artist-hero-badge {
     margin-top: 60px;
 }
 
-.listenbrainz-playlist-card {
+/* (Removed dead Discover-page LB card styling — solid orange gradient
-    background: linear-gradient(135deg, #eb743b 0%, #d26230 100%);
+ * + .listenbrainz-icon { font-size: 48px } were orphaned rules that
-    display: flex;
+ * collided with the Sync-page LB tab cards. The legacy class was
-    align-items: center;
+ * never instantiated in JS or HTML outside the new Sync tab.) */
-    justify-content: center;
-    position: relative;
-    overflow: hidden;
-}
-
-.listenbrainz-playlist-card::before {
-    content: '';
-    position: absolute;
-    top: -50%;
-    left: -50%;
-    width: 200%;
-    height: 200%;
-    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
-    animation: pulse 3s ease-in-out infinite;
-}
-
-.listenbrainz-icon {
-    font-size: 48px;
-    position: relative;
-    z-index: 1;
-    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
-}
-
-@keyframes pulse {
-
-    0%,
-    100% {
-        opacity: 0.5;
-    }
-
-    50% {
-        opacity: 0.8;
-    }
-}
 
 /* ========================================= */
 /* ========================================= */

webui/static/sync-listenbrainz.js

@@ -148,7 +148,7 @@ function renderListenBrainzSyncPlaylists() {
     // If the tab is currently visible, kick the refresh loop so cards
     // start showing live state immediately. ``_startLbSyncCardRefreshLoop``
     // is idempotent + self-stops when the tab loses focus.
-    const tab = document.getElementById('listenbrainz-tab-content');
+    const tab = document.getElementById('listenbrainz-sync-tab-content');
     if (tab && tab.classList.contains('active')) {
         _startLbSyncCardRefreshLoop();
     }
@@ -282,14 +282,14 @@ function _refreshOneLbSyncCard(card) {
 }
 
 function _refreshAllLbSyncCards() {
-    document.querySelectorAll('#listenbrainz-tab-content .listenbrainz-playlist-card')
+    document.querySelectorAll('#listenbrainz-sync-tab-content .listenbrainz-playlist-card')
         .forEach(_refreshOneLbSyncCard);
 }
 
 function _startLbSyncCardRefreshLoop() {
     if (_lbSyncCardRefreshInterval) return;
     _lbSyncCardRefreshInterval = setInterval(() => {
-        const tab = document.getElementById('listenbrainz-tab-content');
+        const tab = document.getElementById('listenbrainz-sync-tab-content');
         if (!tab || !tab.classList.contains('active')) {
             _stopLbSyncCardRefreshLoop();
             return;
@@ -309,7 +309,7 @@ function _stopLbSyncCardRefreshLoop() {
 
 // Sub-tab switching (For You / My Playlists / Collaborative).
 function _initListenBrainzSyncSubTabs() {
-    const subTabContainer = document.querySelector('#listenbrainz-tab-content .listenbrainz-sub-tabs');
+    const subTabContainer = document.querySelector('#listenbrainz-sync-tab-content .listenbrainz-sub-tabs');
     if (!subTabContainer) return;
     subTabContainer.addEventListener('click', (e) => {
         const btn = e.target.closest('.listenbrainz-sub-tab-btn');

webui/static/sync-services.js

@@ -3735,7 +3735,10 @@ function initializeSyncPage() {
             // Auto-load ListenBrainz Sync-tab playlists on first activation.
             // Reuses the LB discovery + sync flow already wired up for the
             // Discover page — the tab is purely a Sync-page entry point.
-            if (tabId === 'listenbrainz') {
+            // Tab id is ``listenbrainz-sync`` (not ``listenbrainz``) so the
+            // ``${tabId}-tab-content`` lookup doesn't collide with the
+            // Discover page's own ``id="listenbrainz-tab-content"``.
+            if (tabId === 'listenbrainz-sync') {
                 if (typeof loadListenBrainzSyncPlaylists === 'function'
                         && !window._listenbrainzSyncTabLoaded) {
                     window._listenbrainzSyncTabLoaded = true;