feat: Enhance UI with Framer Motion animations for album artwork and artist icons

app/components/AudioPlayer.tsx

@@ -484,7 +484,7 @@ export const AudioPlayer: React.FC = () => {
       // Reset title when no track
       document.title = 'mice';
     }
-  }, [currentTrack?.id, currentTrack?.name, currentTrack?.artist, isPlaying, isClient]);
+  }, [currentTrack?.id, currentTrack?.name, currentTrack?.artist, currentTrack?.coverArt, isPlaying, isClient, lastNotifiedTrackId]);
 
   // Media Session API integration - Enhanced for mobile
   useEffect(() => {

app/components/BottomNavigation.tsx

@@ -3,6 +3,7 @@
 import { useRouter, usePathname } from 'next/navigation';
 import { Home, Search, Disc, Users, Music, Heart, List, Settings } from 'lucide-react';
 import { cn } from '@/lib/utils';
+import { motion, AnimatePresence } from 'framer-motion';
 
 interface NavItem {
   href: string;
@@ -40,7 +41,7 @@ export function BottomNavigation() {
           const Icon = item.icon;
           
           return (
-            <button
+            <motion.button
               key={item.href}
               onClick={() => handleNavigation(item.href)}
               className={cn(
@@ -50,6 +51,8 @@ export function BottomNavigation() {
                   ? "text-primary bg-primary/10" 
                   : "text-muted-foreground hover:text-foreground hover:bg-muted/50"
               )}
+              whileTap={{ scale: 0.95 }}
+              whileHover={{ y: -1 }}
             >
               <Icon className={cn("w-5 h-5 mb-1", isItemActive && "text-primary")} />
               <span className={cn(
@@ -58,7 +61,19 @@ export function BottomNavigation() {
               )}>
                 {item.label}
               </span>
-            </button>
+              <AnimatePresence>
+                {isItemActive && (
+                  <motion.div
+                    layoutId="bottom-nav-underline"
+                    className="h-0.5 w-6 bg-primary mt-1 rounded"
+                    initial={{ opacity: 0, scaleX: 0.6 }}
+                    animate={{ opacity: 1, scaleX: 1 }}
+                    exit={{ opacity: 0, scaleX: 0.6 }}
+                    transition={{ duration: 0.2 }}
+                  />
+                )}
+              </AnimatePresence>
+            </motion.button>
           );
         })}
       </div>

app/components/FullScreenPlayer.tsx

@@ -523,8 +523,17 @@ export const FullScreenPlayer: React.FC<FullScreenPlayerProps> = ({ isOpen, onCl
                 <AnimatePresence mode="wait" initial={false}>
                 {activeTab === 'player' && (
                   <motion.div key="tab-player" className="h-full flex flex-col justify-center items-center px-8 py-4" initial={{ x: 20, opacity: 0 }} animate={{ x: 0, opacity: 1 }} exit={{ x: -20, opacity: 0 }} transition={{ duration: 0.2 }}>
-                    {/* Mobile Album Art */}
+                    {/* Mobile Album Art (crossfade on track change) */}
-                    <div className="relative mb-6 shrink-0">
+                    <div className="relative mb-6 shrink-0 flex items-center justify-center" style={{ minHeight: 208 }}>
+                      <AnimatePresence mode="wait" initial={false}>
+                        <motion.div
+                          key={currentTrack.id}
+                          initial={{ opacity: 0, scale: 0.98 }}
+                          animate={{ opacity: 1, scale: 1 }}
+                          exit={{ opacity: 0, scale: 1.02, position: 'absolute' as const }}
+                          transition={{ duration: 0.25 }}
+                          className="flex items-center justify-center"
+                        >
                           <Image
                             src={currentTrack.coverArt || '/default-album.png'}
                             alt={currentTrack.album}
@@ -535,6 +544,8 @@ export const FullScreenPlayer: React.FC<FullScreenPlayerProps> = ({ isOpen, onCl
                             }`}
                             priority
                           />
+                        </motion.div>
+                      </AnimatePresence>
                     </div>
 
                     {/* Track Info - Left Aligned and Heart on Same Line */}
@@ -651,11 +662,14 @@ export const FullScreenPlayer: React.FC<FullScreenPlayerProps> = ({ isOpen, onCl
                     >
                       <div className="space-y-3 py-4">
                         {lyrics.map((line, index) => (
-                          <div
+                          <motion.div
                             key={index}
                             data-lyric-index={index}
                             onClick={() => handleLyricClick(line.time)}
-                            className={`text-base leading-relaxed transition-all duration-300 break-words cursor-pointer hover:text-foreground px-2 ${
+                            initial={false}
+                            animate={index === currentLyricIndex ? { scale: 1, opacity: 1 } : index < currentLyricIndex ? { scale: 0.995, opacity: 0.7 } : { scale: 0.99, opacity: 0.5 }}
+                            transition={{ duration: 0.2 }}
+                            className={`text-base leading-relaxed transition-colors duration-200 break-words cursor-pointer hover:text-foreground px-2 ${
                               index === currentLyricIndex
                                 ? 'text-foreground font-bold text-xl'
                                 : index < currentLyricIndex
@@ -671,7 +685,7 @@ export const FullScreenPlayer: React.FC<FullScreenPlayerProps> = ({ isOpen, onCl
                             title={`Click to jump to ${formatTime(line.time)}`}
                           >
                             {line.text || '♪'}
-                          </div>
+                          </motion.div>
                         ))}
                         <div style={{ height: '200px' }} />
                       </div>
@@ -753,8 +767,17 @@ export const FullScreenPlayer: React.FC<FullScreenPlayerProps> = ({ isOpen, onCl
             <div className="h-full flex flex-row gap-8 p-6 overflow-hidden">
               {/* Left Side - Album Art and Controls */}
               <div className="flex flex-col items-center justify-center min-h-0 flex-1 min-w-0">
-                {/* Album Art */}
+                {/* Album Art (crossfade on track change) */}
-                <div className="relative mb-6 shrink-0">
+                <div className="relative mb-6 shrink-0 w-80 h-80">
+                  <AnimatePresence mode="wait" initial={false}>
+                    <motion.div
+                      key={currentTrack.id}
+                      className="absolute inset-0"
+                      initial={{ opacity: 0, scale: 0.985 }}
+                      animate={{ opacity: 1, scale: 1 }}
+                      exit={{ opacity: 0, scale: 1.02 }}
+                      transition={{ duration: 0.25 }}
+                    >
                       <Image
                         src={currentTrack.coverArt || '/default-album.png'}
                         alt={currentTrack.album}
@@ -763,6 +786,8 @@ export const FullScreenPlayer: React.FC<FullScreenPlayerProps> = ({ isOpen, onCl
                         className="w-80 h-80 rounded-lg shadow-2xl object-cover"
                         priority
                       />
+                    </motion.div>
+                  </AnimatePresence>
                 </div>
 
                 {/* Track Info */}
@@ -889,11 +914,14 @@ export const FullScreenPlayer: React.FC<FullScreenPlayerProps> = ({ isOpen, onCl
                     <ScrollArea className="flex-1 min-h-0">
                       <div className="space-y-3 pl-4 pr-4 py-4">
                         {lyrics.map((line, index) => (
-                          <div
+                          <motion.div
                             key={index}
                             data-lyric-index={index}
                             onClick={() => handleLyricClick(line.time)}
-                            className={`text-base leading-relaxed transition-all duration-300 break-words cursor-pointer hover:text-foreground ${
+                            initial={false}
+                            animate={index === currentLyricIndex ? { scale: 1, opacity: 1 } : index < currentLyricIndex ? { scale: 0.995, opacity: 0.75 } : { scale: 0.99, opacity: 0.5 }}
+                            transition={{ duration: 0.2 }}
+                            className={`text-base leading-relaxed transition-colors duration-200 break-words cursor-pointer hover:text-foreground ${
                               index === currentLyricIndex
                                 ? 'text-foreground font-bold text-2xl'
                                 : index < currentLyricIndex
@@ -910,7 +938,7 @@ export const FullScreenPlayer: React.FC<FullScreenPlayerProps> = ({ isOpen, onCl
                             title={`Click to jump to ${formatTime(line.time)}`}
                           >
                             {line.text || '♪'}
-                          </div>
+                          </motion.div>
                         ))}
                         <div style={{ height: '200px' }} />
                       </div>

app/components/album-artwork.tsx

@@ -3,6 +3,7 @@
 import Image from "next/image"
 import { PlusCircledIcon } from "@radix-ui/react-icons"
 import { useRouter } from 'next/navigation';
+import { motion } from 'framer-motion';
 
 import { cn } from "@/lib/utils"
 import {
@@ -29,7 +30,10 @@ import { Heart, Music, Disc, Mic, Play, Download } from "lucide-react";
 import { Album, Artist, Song } from "@/lib/navidrome";
 import { OfflineIndicator } from "@/app/components/OfflineIndicator";
 
-interface AlbumArtworkProps extends React.HTMLAttributes<HTMLDivElement> {
+interface AlbumArtworkProps extends Omit<
+  React.HTMLAttributes<HTMLDivElement>,
+  'onDrag' | 'onDragStart' | 'onDragEnd' | 'onDragOver' | 'onDragEnter' | 'onDragLeave' | 'onDrop'
+> {
   album: Album
   aspectRatio?: "portrait" | "square"
   width?: number
@@ -75,10 +79,10 @@ export function AlbumArtwork({
   const handlePrefetch = () => {
     try {
       // Next.js App Router will prefetch on hover when using Link with prefetch
-      // but we also call router.prefetch to ensure programmatic prefetch.
+      // but we also call router.prefetch to ensure programmatic prefetch when present.
-      // @ts-ignore - prefetch exists in next/navigation router in app router
+      const r = router as unknown as { prefetch?: (href: string) => Promise<void> | void };
-      if (router && typeof (router as any).prefetch === 'function') {
+      if (r && typeof r.prefetch === 'function') {
-        (router as any).prefetch(`/album/${album.id}`);
+        r.prefetch(`/album/${album.id}`);
       }
     } catch {}
   };
@@ -138,6 +142,13 @@ export function AlbumArtwork({
     
   return (
     <div className={cn("space-y-3", className)} {...props}>
+      <motion.div
+        initial={{ opacity: 0, y: 10 }}
+        whileInView={{ opacity: 1, y: 0 }}
+        viewport={{ once: true, amount: 0.15 }}
+        transition={{ duration: 0.2 }}
+        whileHover={{ y: -2 }}
+      >
       <ContextMenu>
         <ContextMenuTrigger>
           <Card key={album.id} className="overflow-hidden cursor-pointer px-0 py-0 gap-0" onClick={() => handleClick()} onMouseEnter={handlePrefetch} onFocus={handlePrefetch}>
@@ -239,6 +250,7 @@ export function AlbumArtwork({
           <ContextMenuItem>Share</ContextMenuItem>
         </ContextMenuContent>
       </ContextMenu>
+      </motion.div>
     </div>
   )
 }

app/components/artist-icon.tsx

@@ -4,6 +4,7 @@ import Image from "next/image"
 import { PlusCircledIcon } from "@radix-ui/react-icons"
 import { useRouter } from 'next/navigation';
 import { cn } from "@/lib/utils"
+import { motion } from 'framer-motion'
 import {
   ContextMenu,
   ContextMenuContent,
@@ -88,6 +89,13 @@ export function ArtistIcon({
     <div className={cn("space-y-3", className)} {...props}>
       <ContextMenu>
         <ContextMenuTrigger>
+          <motion.div
+            initial={{ opacity: 0, y: 8 }}
+            whileInView={{ opacity: 1, y: 0 }}
+            viewport={{ once: true, amount: 0.2 }}
+            transition={{ duration: 0.2 }}
+            whileHover={{ y: -2 }}
+          >
           <Card key={artist.id} className="overflow-hidden cursor-pointer px-0 py-0 gap-0" onClick={() => handleClick()}>
             <div
               className="aspect-square relative group"
@@ -118,6 +126,7 @@ export function ArtistIcon({
               </p>
             </CardContent>
           </Card>
+          </motion.div>
         </ContextMenuTrigger>
         <ContextMenuContent className="w-40">
           <ContextMenuItem onClick={handleStar}>