fix(immersive): improve background quality and polish UI

- Increase canvas blur size from 64x64 to 256x256 for smoother background
- Fix lyrics horizontal scroll by adding word-wrap and overflow-x: hidden
- Remove queue button from controls (use header tab instead)
- Add queue sync effect when immersive player is open

Addresses visual quality issues with pixelated background and long
German lyrics causing horizontal overflow.

src/lib/components/immersive/ImmersiveControls.svelte

@@ -1,5 +1,5 @@
 <script lang="ts">
-  import { Shuffle, SkipBack, Play, Pause, SkipForward, Repeat, Heart, List } from 'lucide-svelte';
+  import { Shuffle, SkipBack, Play, Pause, SkipForward, Repeat, Heart } from 'lucide-svelte';
   import ProgressBar from './shared/ProgressBar.svelte';
   import VolumeSlider from './shared/VolumeSlider.svelte';
   import QualityBadge from '../QualityBadge.svelte';
@@ -32,7 +32,6 @@
     onToggleRepeat: () => void;
     onToggleFavorite: () => void;
     onVolumeChange: (volume: number) => void;
-    onOpenQueue?: () => void;
     // Compact mode (hide some elements)
     compact?: boolean;
   }
@@ -60,7 +59,6 @@
     onToggleRepeat,
     onToggleFavorite,
     onVolumeChange,
-    onOpenQueue,
     compact = false
   }: Props = $props();
 </script>
@@ -152,12 +150,6 @@
         />
       </button>
 
-      {#if onOpenQueue}
-        <button class="action-btn" onclick={onOpenQueue} title="Queue">
-          <List size={18} />
-        </button>
-      {/if}
-
       <div class="volume-wrapper">
         <VolumeSlider {volume} {onVolumeChange} />
       </div>

src/lib/components/immersive/ImmersivePlayer.svelte

@@ -53,7 +53,6 @@
     onToggleShuffle: () => void;
     onToggleRepeat: () => void;
     onToggleFavorite: () => void;
-    onOpenQueue?: () => void;
     // Lyrics
     lyricsLines?: LyricsLine[];
     lyricsActiveIndex?: number;
@@ -99,7 +98,6 @@
     onToggleShuffle,
     onToggleRepeat,
     onToggleFavorite,
-    onOpenQueue,
     lyricsLines = [],
     lyricsActiveIndex = -1,
     lyricsActiveProgress = 0,
@@ -289,7 +287,6 @@
       {onToggleRepeat}
       {onToggleFavorite}
       {onVolumeChange}
-      {onOpenQueue}
     />
   </div>
 {/if}

src/lib/components/lyrics/LyricsLines.svelte

@@ -134,6 +134,7 @@
     gap: 16px;
     padding: 16px 20px;
     overflow-y: auto;
+    overflow-x: hidden;
     height: 100%;
     scrollbar-width: thin;
     scrollbar-color: var(--bg-tertiary) transparent;
@@ -213,6 +214,9 @@
       font-size 150ms ease-out,
       color 250ms ease-out;
     transform-origin: left center;
+    /* Prevent horizontal overflow with long lyrics */
+    word-wrap: break-word;
+    overflow-wrap: break-word;
     /* will-change removed from all lines - only active line gets GPU layer */
   }
 

src/lib/utils/imageBlur.ts

@@ -2,8 +2,8 @@
  * Optimized Image Blur Utility
  *
  * Pre-computes blurred background images for the immersive player.
- * Uses a tiny canvas (64x64) which, when scaled up, produces the same
- * visual effect as CSS blur(100px) but with near-zero GPU cost.
+ * Uses a small canvas (256x256) with blur which, when scaled up, produces
+ * a smooth background effect with minimal GPU cost.
  *
  * Performance comparison:
  * - CSS blur(100px) on 600x600 image: ~15-30% GPU, constant
@@ -19,14 +19,14 @@ const MAX_CACHE_SIZE = 20;
  * Returns a data URL that can be used as background-image.
  *
  * @param artworkUrl - The original artwork URL
- * @param size - Output canvas size (default 64, higher = sharper blur edges)
- * @param blurRadius - Canvas blur radius (default 8, effective ~100px at fullscreen)
+ * @param size - Output canvas size (default 256, higher = smoother result)
+ * @param blurRadius - Canvas blur radius (default 20, effective ~80px at fullscreen)
  * @returns Promise<string> - Data URL of blurred image
  */
 export async function generateBlurredBackground(
   artworkUrl: string,
-  size: number = 64,
-  blurRadius: number = 8
+  size: number = 256,
+  blurRadius: number = 20
 ): Promise<string> {
   // Check cache first
   const cacheKey = `${artworkUrl}-${size}-${blurRadius}`;

src/routes/+page.svelte

@@ -2587,6 +2587,15 @@
     }
   });
 
+  // Sync queue state when immersive player is open and track changes
+  $effect(() => {
+    const trackId = currentTrack?.id;
+    const immersiveOpen = isFullScreenOpen || isFocusModeOpen;
+    if (immersiveOpen && trackId !== undefined) {
+      syncQueueState();
+    }
+  });
+
   // Helper function to fetch and update queue counts and history
   async function updateQueueCounts() {
     const state = await getBackendQueueState();
@@ -3095,11 +3104,6 @@
         onToggleRepeat={toggleRepeat}
         {isFavorite}
         onToggleFavorite={toggleFavorite}
-        onOpenQueue={() => {
-          closeFullScreen();
-          closeFocusMode();
-          toggleQueue();
-        }}
         lyricsLines={lyricsLines.map(l => ({ text: l.text }))}
         lyricsActiveIndex={lyricsActiveIndex}
         lyricsActiveProgress={lyricsActiveProgress}