Backend optimizations, frontend optimizations, and UI design improvements

Backend optimizations:
- GZip middleware for compressed responses
- Concurrent WebSocket broadcast
- Skip status polling when no clients connected
- Deduplicated token validation with caching
- Fire-and-forget HA state callbacks
- Single stat() per browser item
- Metadata caching (LRU)
- M3U playlist optimization
- Autostart setup (Task Scheduler + hidden VBS launcher)

Frontend code optimizations:
- Fix thumbnail blob URL memory leak
- Fix WebSocket ping interval leak on reconnect
- Skip artwork re-fetch when same track playing
- Deduplicate volume slider logic
- Extract magic numbers into named constants
- Standardize error handling with toast notifications
- Cache play/pause SVG constants
- Loading state management for async buttons
- Request deduplication for rapid clicks
- Cache 30+ DOM element references
- Deduplicate volume updates over WebSocket

Frontend design improvements:
- Progress bar seek thumb and hover expansion
- Custom themed scrollbars
- Toast notification accent border strips
- Keyboard focus-visible states
- Album art ambient glow effect
- Animated sliding tab indicator
- Mini-player top progress line
- Empty state SVG illustrations
- Responsive tablet breakpoint (601-900px)
- Horizontal player layout on wide screens (>900px)
- Glassmorphism mini-player with backdrop blur
- Vinyl spin animation (toggleable)
- Table horizontal scroll on narrow screens

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

media_server/auth.py

@@ -36,9 +36,7 @@ async def verify_token(
 ) -> str:
     """Verify the API token from the Authorization header.
 
-    Args:
+    Reuses the label from middleware context when already validated.
-        request: The incoming request
-        credentials: The bearer token credentials
 
     Returns:
         The token label
@@ -46,6 +44,11 @@ async def verify_token(
     Raises:
         HTTPException: If the token is missing or invalid
     """
+    # Reuse label already set by middleware to avoid redundant O(n) scan
+    existing = token_label_var.get("unknown")
+    if existing != "unknown":
+        return existing
+
     if credentials is None:
         raise HTTPException(
             status_code=status.HTTP_401_UNAUTHORIZED,
@@ -61,7 +64,6 @@ async def verify_token(
             headers={"WWW-Authenticate": "Bearer"},
         )
 
-    # Set label in context for logging
     token_label_var.set(label)
     return label
 
@@ -120,6 +122,11 @@ async def verify_token_or_query(
     Raises:
         HTTPException: If the token is missing or invalid
     """
+    # Reuse label already set by middleware
+    existing = token_label_var.get("unknown")
+    if existing != "unknown":
+        return existing
+
     label = None
 
     # Try header first
@@ -137,6 +144,5 @@ async def verify_token_or_query(
             headers={"WWW-Authenticate": "Bearer"},
         )
 
-    # Set label in context for logging
     token_label_var.set(label)
     return label

media_server/main.py

@@ -9,6 +9,7 @@ from pathlib import Path
 import uvicorn
 from fastapi import FastAPI, Request
 from fastapi.middleware.cors import CORSMiddleware
+from fastapi.middleware.gzip import GZipMiddleware
 from fastapi.responses import FileResponse
 from fastapi.staticfiles import StaticFiles
 
@@ -74,6 +75,9 @@ def create_app() -> FastAPI:
         lifespan=lifespan,
     )
 
+    # Compress responses > 1KB
+    app.add_middleware(GZipMiddleware, minimum_size=1000)
+
     # Add CORS middleware for cross-origin requests
     app.add_middleware(
         CORSMiddleware,

media_server/routes/browser.py

@@ -25,6 +25,28 @@ logger = logging.getLogger(__name__)
 router = APIRouter(prefix="/api/browser", tags=["browser"])
 
 
+async def _broadcast_after_open(controller, label: str, max_wait: float = 2.0) -> None:
+    """Poll until media session registers, then broadcast status update.
+
+    Fires as a background task so the HTTP response returns immediately.
+    """
+    try:
+        interval = 0.3
+        elapsed = 0.0
+        while elapsed < max_wait:
+            await asyncio.sleep(interval)
+            elapsed += interval
+            status = await controller.get_status()
+            if status.state in ("playing", "paused"):
+                break
+
+        status_dict = status.model_dump()
+        await ws_manager.broadcast({"type": "status", "data": status_dict})
+        logger.info(f"Broadcasted status update after opening: {label}")
+    except Exception as e:
+        logger.warning(f"Failed to broadcast status after opening {label}: {e}")
+
+
 # Request/Response Models
 class FolderCreateRequest(BaseModel):
     """Request model for creating a media folder."""
@@ -412,21 +434,8 @@ async def play_file(
         if not success:
             raise HTTPException(status_code=500, detail="Failed to open file")
 
-        # Wait for media player to start and register with Windows Media Session API
+        # Poll until player registers with media session API (up to 2s)
-        # This allows the UI to update immediately with the new playback state
+        asyncio.create_task(_broadcast_after_open(controller, file_path.name))
-        await asyncio.sleep(1.5)
-
-        # Get updated status and broadcast to all connected clients
-        try:
-            status = await controller.get_status()
-            status_dict = status.model_dump()
-            await ws_manager.broadcast({
-                "type": "status",
-                "data": status_dict
-            })
-            logger.info(f"Broadcasted status update after opening file: {file_path.name}")
-        except Exception as e:
-            logger.warning(f"Failed to broadcast status after opening file: {e}")
 
         return {
             "success": True,
@@ -476,10 +485,11 @@ async def play_folder(
         # Generate M3U playlist with absolute paths and EXTINF entries
         # Written to local temp dir to avoid extra SMB file handle on network shares
         # Uses utf-8-sig (BOM) so players detect encoding properly
-        m3u_content = "#EXTM3U\r\n"
+        lines = ["#EXTM3U"]
         for f in media_files:
-            m3u_content += f"#EXTINF:-1,{f.stem}\r\n"
+            lines.append(f"#EXTINF:-1,{f.stem}")
-            m3u_content += f"{f}\r\n"
+            lines.append(str(f))
+        m3u_content = "\r\n".join(lines) + "\r\n"
 
         playlist_path = Path(tempfile.gettempdir()) / ".media_server_playlist.m3u"
         playlist_path.write_text(m3u_content, encoding="utf-8-sig")
@@ -491,20 +501,8 @@ async def play_folder(
         if not success:
             raise HTTPException(status_code=500, detail="Failed to open playlist")
 
-        # Wait for media player to start
+        # Poll until player registers with media session API (up to 2s)
-        await asyncio.sleep(1.5)
+        asyncio.create_task(_broadcast_after_open(controller, f"playlist ({len(media_files)} files)"))
-
-        # Broadcast status update
-        try:
-            status = await controller.get_status()
-            status_dict = status.model_dump()
-            await ws_manager.broadcast({
-                "type": "status",
-                "data": status_dict
-            })
-            logger.info(f"Broadcasted status after opening playlist with {len(media_files)} files")
-        except Exception as e:
-            logger.warning(f"Failed to broadcast status after opening playlist: {e}")
 
         return {
             "success": True,

media_server/routes/media.py

@@ -18,31 +18,37 @@ logger = logging.getLogger(__name__)
 router = APIRouter(prefix="/api/media", tags=["media"])
 
 
-async def _run_callback(callback_name: str) -> None:
+def _run_callback(callback_name: str) -> None:
-    """Run a callback if configured. Failures are logged but don't raise."""
+    """Fire-and-forget a callback if configured. Failures are logged but don't block."""
     if not settings.callbacks or callback_name not in settings.callbacks:
         return
 
-    from .scripts import _run_script
+    async def _execute():
+        from .scripts import _run_script
 
-    callback = settings.callbacks[callback_name]
+        try:
-    loop = asyncio.get_event_loop()
+            callback = settings.callbacks[callback_name]
-    result = await loop.run_in_executor(
+            loop = asyncio.get_event_loop()
-        None,
+            result = await loop.run_in_executor(
-        lambda: _run_script(
+                None,
-            command=callback.command,
+                lambda: _run_script(
-            timeout=callback.timeout,
+                    command=callback.command,
-            shell=callback.shell,
+                    timeout=callback.timeout,
-            working_dir=callback.working_dir,
+                    shell=callback.shell,
-        ),
+                    working_dir=callback.working_dir,
-    )
+                ),
-    if result["exit_code"] != 0:
+            )
-        logger.warning(
+            if result["exit_code"] != 0:
-            "Callback %s failed with exit code %s: %s",
+                logger.warning(
-            callback_name,
+                    "Callback %s failed with exit code %s: %s",
-            result["exit_code"],
+                    callback_name,
-            result["stderr"],
+                    result["exit_code"],
-        )
+                    result["stderr"],
+                )
+        except Exception as e:
+            logger.error("Callback %s error: %s", callback_name, e)
+
+    asyncio.create_task(_execute())
 
 
 @router.get("/status", response_model=MediaStatus)
@@ -70,7 +76,7 @@ async def play(_: str = Depends(verify_token)) -> dict:
             status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
             detail="Failed to start playback - no active media session",
         )
-    await _run_callback("on_play")
+    _run_callback("on_play")
     return {"success": True}
 
 
@@ -88,7 +94,7 @@ async def pause(_: str = Depends(verify_token)) -> dict:
             status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
             detail="Failed to pause - no active media session",
         )
-    await _run_callback("on_pause")
+    _run_callback("on_pause")
     return {"success": True}
 
 
@@ -106,7 +112,7 @@ async def stop(_: str = Depends(verify_token)) -> dict:
             status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
             detail="Failed to stop - no active media session",
         )
-    await _run_callback("on_stop")
+    _run_callback("on_stop")
     return {"success": True}
 
 
@@ -124,7 +130,7 @@ async def next_track(_: str = Depends(verify_token)) -> dict:
             status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
             detail="Failed to skip - no active media session",
         )
-    await _run_callback("on_next")
+    _run_callback("on_next")
     return {"success": True}
 
 
@@ -142,7 +148,7 @@ async def previous_track(_: str = Depends(verify_token)) -> dict:
             status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
             detail="Failed to go back - no active media session",
         )
-    await _run_callback("on_previous")
+    _run_callback("on_previous")
     return {"success": True}
 
 
@@ -165,7 +171,7 @@ async def set_volume(
             status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
             detail="Failed to set volume",
         )
-    await _run_callback("on_volume")
+    _run_callback("on_volume")
     return {"success": True, "volume": request.volume}
 
 
@@ -178,7 +184,7 @@ async def toggle_mute(_: str = Depends(verify_token)) -> dict:
     """
     controller = get_media_controller()
     muted = await controller.toggle_mute()
-    await _run_callback("on_mute")
+    _run_callback("on_mute")
     return {"success": True, "muted": muted}
 
 
@@ -199,7 +205,7 @@ async def seek(request: SeekRequest, _: str = Depends(verify_token)) -> dict:
             status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
             detail="Failed to seek - no active media session or seek not supported",
         )
-    await _run_callback("on_seek")
+    _run_callback("on_seek")
     return {"success": True, "position": request.position}
 
 
@@ -210,7 +216,7 @@ async def turn_on(_: str = Depends(verify_token)) -> dict:
     Returns:
         Success status
     """
-    await _run_callback("on_turn_on")
+    _run_callback("on_turn_on")
     return {"success": True}
 
 
@@ -221,7 +227,7 @@ async def turn_off(_: str = Depends(verify_token)) -> dict:
     Returns:
         Success status
     """
-    await _run_callback("on_turn_off")
+    _run_callback("on_turn_off")
     return {"success": True}
 
 
@@ -232,7 +238,7 @@ async def toggle(_: str = Depends(verify_token)) -> dict:
     Returns:
         Success status
     """
-    await _run_callback("on_toggle")
+    _run_callback("on_toggle")
     return {"success": True}
 
 

media_server/services/browser_service.py

@@ -2,6 +2,7 @@
 
 import logging
 import os
+import stat as stat_module
 import time
 from datetime import datetime
 from pathlib import Path
@@ -13,6 +14,10 @@ from ..config import settings
 _dir_cache: dict[str, tuple[float, list[dict]]] = {}
 DIR_CACHE_TTL = 300  # 5 minutes
 
+# Media info cache: {(file_path_str, mtime): {duration, bitrate, title}}
+_media_info_cache: dict[tuple[str, float], dict] = {}
+_MEDIA_INFO_CACHE_MAX = 5000
+
 try:
     from mutagen import File as MutagenFile
     HAS_MUTAGEN = True
@@ -121,11 +126,14 @@ class BrowserService:
             return "other"
 
     @staticmethod
-    def get_media_info(file_path: Path) -> dict:
+    def get_media_info(file_path: Path, mtime: float | None = None) -> dict:
         """Get duration, bitrate, and title of a media file (header-only read).
 
+        Results are cached by (path, mtime) to avoid re-reading unchanged files.
+
         Args:
             file_path: Path to the media file.
+            mtime: File modification time (avoids an extra stat call).
 
         Returns:
             Dict with 'duration' (float or None), 'bitrate' (int or None),
@@ -134,6 +142,20 @@ class BrowserService:
         result = {"duration": None, "bitrate": None, "title": None}
         if not HAS_MUTAGEN:
             return result
+
+        # Use mtime-based cache to skip mutagen reads for unchanged files
+        if mtime is None:
+            try:
+                mtime = file_path.stat().st_mtime
+            except (OSError, PermissionError):
+                pass
+
+        if mtime is not None:
+            cache_key = (str(file_path), mtime)
+            cached = _media_info_cache.get(cache_key)
+            if cached is not None:
+                return cached
+
         try:
             audio = MutagenFile(str(file_path), easy=True)
             if audio is not None and hasattr(audio, "info"):
@@ -155,6 +177,16 @@ class BrowserService:
                     result["title"] = title
         except Exception:
             pass
+
+        # Cache result (evict oldest entries if cache is full)
+        if mtime is not None:
+            if len(_media_info_cache) >= _MEDIA_INFO_CACHE_MAX:
+                # Remove oldest ~20% of entries
+                to_remove = list(_media_info_cache.keys())[:_MEDIA_INFO_CACHE_MAX // 5]
+                for k in to_remove:
+                    del _media_info_cache[k]
+            _media_info_cache[(str(file_path), mtime)] = result
+
         return result
 
     @staticmethod
@@ -235,8 +267,13 @@ class BrowserService:
                     if item.name.startswith("."):
                         continue
 
-                    is_dir = item.is_dir()
+                    # Single stat() call per item — reuse for type check and metadata
-                    if is_dir:
+                    try:
+                        st = item.stat()
+                    except (OSError, PermissionError):
+                        continue
+
+                    if stat_module.S_ISDIR(st.st_mode):
                         file_type = "folder"
                     else:
                         suffix = item.suffix.lower()
@@ -251,6 +288,8 @@ class BrowserService:
                         "name": item.name,
                         "type": file_type,
                         "is_media": file_type in ("audio", "video"),
+                        "_size": st.st_size,
+                        "_mtime": st.st_mtime,
                     })
 
                 all_items.sort(key=lambda x: (x["type"] != "folder", x["name"].lower()))
@@ -260,19 +299,14 @@ class BrowserService:
             total = len(all_items)
             items = all_items[offset:offset + limit]
 
-            # Fetch stat + duration only for items on the current page
+            # Enrich items on the current page with metadata
             for item in items:
-                item_path = full_path / item["name"]
+                item["size"] = item["_size"] if item["type"] != "folder" else None
-                try:
+                item["modified"] = datetime.fromtimestamp(item["_mtime"]).isoformat()
-                    stat = item_path.stat()
-                    item["size"] = stat.st_size if item["type"] != "folder" else None
-                    item["modified"] = datetime.fromtimestamp(stat.st_mtime).isoformat()
-                except (OSError, PermissionError):
-                    item["size"] = None
-                    item["modified"] = None
 
                 if item["is_media"]:
-                    info = BrowserService.get_media_info(item_path)
+                    item_path = full_path / item["name"]
+                    info = BrowserService.get_media_info(item_path, item["_mtime"])
                     item["duration"] = info["duration"]
                     item["bitrate"] = info["bitrate"]
                     item["title"] = info["title"]

media_server/services/websocket_manager.py

@@ -49,24 +49,27 @@ class ConnectionManager:
         )
 
     async def broadcast(self, message: dict[str, Any]) -> None:
-        """Broadcast a message to all connected clients."""
+        """Broadcast a message to all connected clients concurrently."""
         async with self._lock:
             connections = list(self._active_connections)
 
         if not connections:
             return
 
-        disconnected = []
+        async def _send(ws: WebSocket) -> WebSocket | None:
-        for websocket in connections:
             try:
-                await websocket.send_json(message)
+                await ws.send_json(message)
+                return None
             except Exception as e:
                 logger.debug("Failed to send to client: %s", e)
-                disconnected.append(websocket)
+                return ws
+
+        results = await asyncio.gather(*(_send(ws) for ws in connections))
 
         # Clean up disconnected clients
-        for ws in disconnected:
+        for ws in results:
-            await self.disconnect(ws)
+            if ws is not None:
+                await self.disconnect(ws)
 
     async def broadcast_scripts_changed(self) -> None:
         """Notify all connected clients that scripts have changed."""
@@ -156,26 +159,25 @@ class ConnectionManager:
                 async with self._lock:
                     has_clients = len(self._active_connections) > 0
 
-                if has_clients:
+                if not has_clients:
-                    status = await get_status_func()
+                    await asyncio.sleep(self._poll_interval)
-                    status_dict = status.model_dump()
+                    continue
 
-                    # Only broadcast on actual state changes
+                status = await get_status_func()
-                    # Let HA handle position interpolation during playback
+                status_dict = status.model_dump()
-                    if self.status_changed(self._last_status, status_dict):
+
-                        self._last_status = status_dict
+                # Only broadcast on actual state changes
-                        self._last_broadcast_time = time.time()
+                # Let HA handle position interpolation during playback
-                        await self.broadcast(
+                if self.status_changed(self._last_status, status_dict):
-                            {"type": "status_update", "data": status_dict}
+                    self._last_status = status_dict
-                        )
+                    self._last_broadcast_time = time.time()
-                        logger.debug("Broadcast sent: status change")
+                    await self.broadcast(
-                    else:
+                        {"type": "status_update", "data": status_dict}
-                        # Update cached status even without broadcast
+                    )
-                        self._last_status = status_dict
+                    logger.debug("Broadcast sent: status change")
                 else:
-                    # Still update cache for when clients connect
+                    # Update cached status even without broadcast
-                    status = await get_status_func()
+                    self._last_status = status_dict
-                    self._last_status = status.model_dump()
 
                 await asyncio.sleep(self._poll_interval)
 

media_server/static/css/styles.css

@@ -51,6 +51,55 @@
             opacity: 1;
         }
 
+        /* Custom Scrollbars */
+        ::-webkit-scrollbar {
+            width: 8px;
+            height: 8px;
+        }
+
+        ::-webkit-scrollbar-track {
+            background: var(--bg-primary);
+        }
+
+        ::-webkit-scrollbar-thumb {
+            background: var(--border);
+            border-radius: 4px;
+        }
+
+        ::-webkit-scrollbar-thumb:hover {
+            background: var(--text-muted);
+        }
+
+        * {
+            scrollbar-width: thin;
+            scrollbar-color: var(--border) var(--bg-primary);
+        }
+
+        /* Focus-visible states for keyboard accessibility */
+        :focus-visible {
+            outline: 2px solid var(--accent);
+            outline-offset: 2px;
+        }
+
+        button:focus-visible {
+            outline: 2px solid var(--accent);
+            outline-offset: 2px;
+            box-shadow: 0 0 0 4px rgba(29, 185, 84, 0.2);
+        }
+
+        input:focus-visible,
+        select:focus-visible,
+        textarea:focus-visible {
+            outline: none;
+            border-color: var(--accent);
+            box-shadow: 0 0 0 3px rgba(29, 185, 84, 0.15);
+        }
+
+        .tab-btn:focus-visible {
+            outline: 2px solid var(--accent);
+            outline-offset: -2px;
+        }
+
         /* Prevent scrolling when dialog is open */
         body.dialog-open {
             overflow: hidden;
@@ -157,6 +206,20 @@
             background: var(--bg-secondary);
             border-radius: 10px;
             border: 1px solid var(--border);
+            position: relative;
+        }
+
+        .tab-indicator {
+            position: absolute;
+            top: 0.25rem;
+            bottom: 0.25rem;
+            left: 0;
+            background: var(--bg-tertiary);
+            border-radius: 8px;
+            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
+            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+            z-index: 0;
+            pointer-events: none;
         }
 
         .tab-btn {
@@ -173,21 +236,21 @@
             font-size: 0.8rem;
             font-weight: 500;
             cursor: pointer;
-            transition: all 0.2s;
+            transition: color 0.2s;
             width: auto;
             height: auto;
+            position: relative;
+            z-index: 1;
         }
 
         .tab-btn:hover {
             color: var(--text-primary);
-            background: var(--bg-tertiary) !important;
             transform: none !important;
         }
 
         .tab-btn.active {
             color: var(--accent);
-            background: var(--bg-tertiary);
+            background: transparent;
-            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
         }
 
         .tab-btn svg {
@@ -221,10 +284,35 @@
             box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
         }
 
+        .player-layout {
+            display: flex;
+            flex-direction: column;
+        }
+
+        .player-details {
+            flex: 1;
+            min-width: 0;
+        }
+
         .album-art-container {
             display: flex;
             justify-content: center;
             margin-bottom: 2rem;
+            position: relative;
+        }
+
+        .album-art-glow {
+            position: absolute;
+            width: 300px;
+            height: 300px;
+            object-fit: cover;
+            border-radius: 8px;
+            filter: blur(40px) saturate(1.5);
+            opacity: 0.5;
+            transform: scale(1.1);
+            z-index: 0;
+            pointer-events: none;
+            transition: opacity 0.5s ease;
         }
 
         #album-art {
@@ -234,6 +322,38 @@
             border-radius: 8px;
             box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
             background: var(--bg-tertiary);
+            position: relative;
+            z-index: 1;
+        }
+
+        :root[data-theme="light"] .album-art-glow {
+            opacity: 0.35;
+            filter: blur(50px) saturate(1.8);
+        }
+
+        /* Vinyl Spin Animation */
+        .album-art-container.vinyl #album-art {
+            border-radius: 50%;
+            transition: border-radius 0.5s ease, box-shadow 0.5s ease;
+            box-shadow: 0 0 0 8px var(--bg-tertiary), 0 0 0 10px var(--border), 0 8px 24px rgba(0, 0, 0, 0.5);
+        }
+
+        .album-art-container.vinyl .album-art-glow {
+            border-radius: 50%;
+        }
+
+        .album-art-container.vinyl.spinning #album-art {
+            animation: vinylSpin 4s linear infinite;
+        }
+
+        .album-art-container.vinyl.paused #album-art {
+            animation: vinylSpin 4s linear infinite;
+            animation-play-state: paused;
+        }
+
+        @keyframes vinylSpin {
+            from { transform: rotate(0deg); }
+            to { transform: rotate(360deg); }
         }
 
         .track-info {
@@ -293,7 +413,11 @@
             border-radius: 3px;
             cursor: pointer;
             position: relative;
-            overflow: hidden;
+            transition: height 0.15s ease;
+        }
+
+        .progress-bar:hover {
+            height: 8px;
         }
 
         .progress-fill {
@@ -302,6 +426,25 @@
             border-radius: 3px;
             width: 0;
             transition: width 0.1s linear;
+            position: relative;
+        }
+
+        .progress-fill::after {
+            content: '';
+            position: absolute;
+            right: -6px;
+            top: 50%;
+            transform: translateY(-50%) scale(0);
+            width: 12px;
+            height: 12px;
+            background: var(--accent);
+            border-radius: 50%;
+            box-shadow: 0 0 4px rgba(0, 0, 0, 0.3);
+            transition: transform 0.15s ease;
+        }
+
+        .progress-bar:hover .progress-fill::after {
+            transform: translateY(-50%) scale(1);
         }
 
         .controls {
@@ -375,6 +518,12 @@
             background: var(--accent);
             border-radius: 50%;
             cursor: pointer;
+            transition: transform 0.15s ease, box-shadow 0.15s ease;
+        }
+
+        #volume-slider:hover::-webkit-slider-thumb {
+            transform: scale(1.3);
+            box-shadow: 0 0 6px rgba(29, 185, 84, 0.4);
         }
 
         #volume-slider::-moz-range-thumb {
@@ -384,6 +533,12 @@
             border-radius: 50%;
             cursor: pointer;
             border: none;
+            transition: transform 0.15s ease, box-shadow 0.15s ease;
+        }
+
+        #volume-slider:hover::-moz-range-thumb {
+            transform: scale(1.3);
+            box-shadow: 0 0 6px rgba(29, 185, 84, 0.4);
         }
 
         .volume-display {
@@ -404,6 +559,44 @@
             color: var(--text-muted);
             padding-top: 1rem;
             border-top: 1px solid var(--border);
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            gap: 0.75rem;
+        }
+
+        .vinyl-toggle-btn {
+            width: 28px;
+            height: 28px;
+            padding: 0;
+            background: transparent;
+            border: 1px solid var(--border);
+            border-radius: 50%;
+            color: var(--text-muted);
+            cursor: pointer;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            transition: all 0.2s;
+            margin-left: auto;
+        }
+
+        .vinyl-toggle-btn:hover {
+            color: var(--accent);
+            border-color: var(--accent);
+            background: transparent;
+            transform: none;
+        }
+
+        .vinyl-toggle-btn.active {
+            color: var(--accent);
+            border-color: var(--accent);
+            background: rgba(29, 185, 84, 0.1);
+        }
+
+        .vinyl-toggle-btn svg {
+            width: 16px;
+            height: 16px;
         }
 
         /* Scripts Section */
@@ -477,6 +670,7 @@
             border-radius: 12px;
             padding: 2rem;
             box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
+            overflow-x: auto;
         }
 
         .script-management h2 {
@@ -511,6 +705,7 @@
 
         .scripts-table {
             width: 100%;
+            min-width: 500px;
             border-collapse: collapse;
             font-size: 0.875rem;
         }
@@ -527,6 +722,7 @@
 
         .scripts-table td {
             padding: 0.75rem;
+            word-break: break-word;
             border-bottom: 1px solid var(--border);
         }
 
@@ -686,6 +882,7 @@
 
         .dialog-header {
             padding: 1.5rem;
+            background: var(--bg-tertiary);
             border-bottom: 1px solid var(--border);
         }
 
@@ -784,6 +981,31 @@
             font-size: 0.875rem;
         }
 
+        .empty-state-illustration {
+            display: flex;
+            flex-direction: column;
+            align-items: center;
+            gap: 1rem;
+            padding: 3rem 2rem;
+        }
+
+        .empty-state-illustration svg {
+            width: 64px;
+            height: 64px;
+            fill: none;
+            stroke: var(--text-muted);
+            stroke-width: 1.5;
+            stroke-linecap: round;
+            stroke-linejoin: round;
+            opacity: 0.5;
+        }
+
+        .empty-state-illustration p {
+            color: var(--text-muted);
+            font-size: 0.875rem;
+            margin: 0;
+        }
+
         .toast {
             position: fixed;
             bottom: 2rem;
@@ -792,12 +1014,14 @@
             border: 1px solid var(--border);
             border-radius: 8px;
             padding: 1rem 1.5rem;
+            padding-left: 1.25rem;
             box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
             opacity: 0;
             transform: translateY(20px);
             transition: all 0.3s;
             pointer-events: none;
             z-index: 1000;
+            border-left: 4px solid var(--border);
         }
 
         .toast.show {
@@ -807,10 +1031,12 @@
 
         .toast.success {
             border-color: var(--accent);
+            border-left-color: var(--accent);
         }
 
         .toast.error {
             border-color: var(--error);
+            border-left-color: var(--error);
         }
 
         /* Auth Modal */
@@ -933,16 +1159,36 @@
             bottom: 0;
             left: 0;
             right: 0;
-            background: var(--bg-secondary);
+            background: rgba(30, 30, 30, 0.8);
-            border-top: 1px solid var(--border);
+            -webkit-backdrop-filter: blur(20px) saturate(1.5);
+            backdrop-filter: blur(20px) saturate(1.5);
+            border-top: 1px solid rgba(255, 255, 255, 0.08);
             padding: 0.75rem 1rem;
+            padding-top: calc(0.75rem + 2px);
             display: flex;
             align-items: center;
             gap: 1.5rem;
             z-index: 1000;
             transform: translateY(0);
             transition: transform 0.3s ease-in-out, opacity 0.3s ease-in-out;
-            box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.3);
+            box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.3);
+        }
+
+        :root[data-theme="light"] .mini-player {
+            background: rgba(245, 245, 245, 0.75);
+            border-top: 1px solid rgba(0, 0, 0, 0.08);
+            box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.1);
+        }
+
+        .mini-player::before {
+            content: '';
+            position: absolute;
+            top: 0;
+            left: 0;
+            height: 2px;
+            width: var(--mini-progress, 0%);
+            background: var(--accent);
+            transition: width 0.1s linear;
         }
 
         .mini-player.hidden {
@@ -1026,6 +1272,25 @@
             border-radius: 2px;
             width: 0%;
             transition: width 0.1s linear;
+            position: relative;
+        }
+
+        .mini-progress-fill::after {
+            content: '';
+            position: absolute;
+            right: -5px;
+            top: 50%;
+            transform: translateY(-50%) scale(0);
+            width: 10px;
+            height: 10px;
+            background: var(--accent);
+            border-radius: 50%;
+            box-shadow: 0 0 4px rgba(0, 0, 0, 0.3);
+            transition: transform 0.15s ease;
+        }
+
+        .mini-progress-bar:hover .mini-progress-fill::after {
+            transform: translateY(-50%) scale(1);
         }
 
         .mini-controls {
@@ -1417,7 +1682,7 @@
     gap: 1rem;
     margin-bottom: 1.5rem;
     min-height: 200px;
-    align-items: start;
+    align-items: stretch;
 }
 
 /* Compact Grid */
@@ -1683,6 +1948,7 @@
 .browser-item-info {
     width: 100%;
     text-align: center;
+    margin-top: auto;
 }
 
 .browser-item-name {
@@ -1929,4 +2195,73 @@
     .browser-list-type {
         display: none;
     }
+
+    .album-art-glow {
+        width: 250px;
+        height: 250px;
+    }
+
+    .mini-volume-container {
+        display: none;
+    }
+
+    .mini-player {
+        gap: 0.75rem;
+        padding: 0.5rem 0.75rem;
+        padding-top: calc(0.5rem + 2px);
+    }
+
+    .mini-player-info {
+        min-width: 120px;
+    }
+
+    .mini-progress-container {
+        gap: 0.5rem;
+    }
+}
+
+/* Tablet breakpoint */
+@media (min-width: 601px) and (max-width: 900px) {
+    .browser-list-bitrate {
+        display: none;
+    }
+
+    .browser-list-item {
+        grid-template-columns: 40px 1fr auto auto auto;
+    }
+}
+
+/* Wide screens - horizontal player layout */
+@media (min-width: 900px) {
+    .container {
+        max-width: 960px;
+    }
+
+    .player-layout {
+        flex-direction: row;
+        gap: 2.5rem;
+        align-items: flex-start;
+    }
+
+    .album-art-container {
+        margin-bottom: 0;
+        flex-shrink: 0;
+    }
+
+    .player-details .track-info {
+        text-align: left;
+    }
+
+    .player-details .playback-state {
+        justify-content: flex-start;
+    }
+
+    .player-details .controls {
+        justify-content: flex-start;
+    }
+
+    .player-details .source-info {
+        text-align: left;
+        justify-content: flex-start;
+    }
 }

media_server/static/index.html

@@ -63,7 +63,6 @@
         <header>
             <div style="display: flex; align-items: center; gap: 0.5rem;">
                 <span class="status-dot" id="status-dot"></span>
-                <h1 data-i18n="app.title">Media Server</h1>
                 <span class="version-label" id="version-label"></span>
             </div>
             <div style="display: flex; align-items: center; gap: 1rem;">
@@ -85,6 +84,7 @@
 
         <!-- Tab Bar -->
         <div class="tab-bar" id="tabBar">
+            <div class="tab-indicator" id="tabIndicator"></div>
             <button class="tab-btn active" data-tab="player" onclick="switchTab('player')">
                 <svg viewBox="0 0 24 24" width="16" height="16"><path fill="currentColor" d="M12 3v10.55c-.59-.34-1.27-.55-2-.55-2.21 0-4 1.79-4 4s1.79 4 4 4 4-1.79 4-4V7h4V3h-6z"/></svg>
                 <span data-i18n="tab.player">Player</span>
@@ -108,62 +108,70 @@
         </div>
 
         <div class="player-container" data-tab-content="player">
-            <div class="album-art-container">
+            <div class="player-layout">
-                <img id="album-art" src="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 300 300'%3E%3Crect fill='%23282828' width='300' height='300'/%3E%3Cpath fill='%236a6a6a' d='M150 80c-38.66 0-70 31.34-70 70s31.34 70 70 70 70-31.34 70-70-31.34-70-70-70zm0 20c27.614 0 50 22.386 50 50s-22.386 50-50 50-50-22.386-50-50 22.386-50 50-50zm0 30a20 20 0 100 40 20 20 0 000-40z'/%3E%3C/svg%3E" alt="Album Art">
+                <div class="album-art-container">
-            </div>
+                    <img id="album-art-glow" class="album-art-glow" src="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 300 300'%3E%3Crect fill='%23282828' width='300' height='300'/%3E%3C/svg%3E" alt="" aria-hidden="true">
-
+                    <img id="album-art" src="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 300 300'%3E%3Crect fill='%23282828' width='300' height='300'/%3E%3Cpath fill='%236a6a6a' d='M150 80c-38.66 0-70 31.34-70 70s31.34 70 70 70 70-31.34 70-70-31.34-70-70-70zm0 20c27.614 0 50 22.386 50 50s-22.386 50-50 50-50-22.386-50-50 22.386-50 50-50zm0 30a20 20 0 100 40 20 20 0 000-40z'/%3E%3C/svg%3E" alt="Album Art">
-            <div class="track-info">
-                <div id="track-title" data-i18n="player.no_media">No media playing</div>
-                <div id="artist"></div>
-                <div id="album"></div>
-                <div class="playback-state">
-                    <svg class="state-icon" id="state-icon" viewBox="0 0 24 24">
-                        <path d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-2 14.5v-9l6 4.5-6 4.5z"/>
-                    </svg>
-                    <span id="playback-state" data-i18n="state.idle">Idle</span>
                 </div>
-            </div>
 
-            <div class="progress-container">
+                <div class="player-details">
-                <div class="time-display">
+                    <div class="track-info">
-                    <span id="current-time">0:00</span>
+                        <div id="track-title" data-i18n="player.no_media">No media playing</div>
-                    <span id="total-time">0:00</span>
+                        <div id="artist"></div>
+                        <div id="album"></div>
+                        <div class="playback-state">
+                            <svg class="state-icon" id="state-icon" viewBox="0 0 24 24">
+                                <path d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-2 14.5v-9l6 4.5-6 4.5z"/>
+                            </svg>
+                            <span id="playback-state" data-i18n="state.idle">Idle</span>
+                        </div>
+                    </div>
+
+                    <div class="progress-container">
+                        <div class="time-display">
+                            <span id="current-time">0:00</span>
+                            <span id="total-time">0:00</span>
+                        </div>
+                        <div class="progress-bar" id="progress-bar" data-duration="0">
+                            <div class="progress-fill" id="progress-fill"></div>
+                        </div>
+                    </div>
+
+                    <div class="controls">
+                        <button onclick="previousTrack()" data-i18n-title="player.previous" title="Previous" id="btn-previous">
+                            <svg viewBox="0 0 24 24">
+                                <path d="M6 6h2v12H6zm3.5 6l8.5 6V6z"/>
+                            </svg>
+                        </button>
+                        <button class="primary" onclick="togglePlayPause()" data-i18n-title="player.play" title="Play/Pause" id="btn-play-pause">
+                            <svg viewBox="0 0 24 24" id="play-pause-icon">
+                                <path d="M8 5v14l11-7z"/>
+                            </svg>
+                        </button>
+                        <button onclick="nextTrack()" data-i18n-title="player.next" title="Next" id="btn-next">
+                            <svg viewBox="0 0 24 24">
+                                <path d="M6 18l8.5-6L6 6v12zM16 6v12h2V6h-2z"/>
+                            </svg>
+                        </button>
+                    </div>
+
+                    <div class="volume-container">
+                        <button class="mute-btn" onclick="toggleMute()" data-i18n-title="player.mute" title="Mute" id="btn-mute">
+                            <svg viewBox="0 0 24 24" id="mute-icon">
+                                <path d="M3 9v6h4l5 5V4L7 9H3zm13.5 3c0-1.77-1.02-3.29-2.5-4.03v8.05c1.48-.73 2.5-2.25 2.5-4.02z"/>
+                            </svg>
+                        </button>
+                        <input type="range" id="volume-slider" min="0" max="100" value="50">
+                        <div class="volume-display" id="volume-display">50%</div>
+                    </div>
+
+                    <div class="source-info">
+                        <span data-i18n="player.source">Source:</span> <span id="source" data-i18n="player.unknown_source">Unknown</span>
+                        <button class="vinyl-toggle-btn" onclick="toggleVinylMode()" id="vinylToggle" data-i18n-title="player.vinyl" title="Vinyl mode">
+                            <svg viewBox="0 0 24 24" width="16" height="16"><circle cx="12" cy="12" r="10" fill="none" stroke="currentColor" stroke-width="1.5"/><circle cx="12" cy="12" r="3" fill="currentColor"/><circle cx="12" cy="12" r="6.5" fill="none" stroke="currentColor" stroke-width="0.5" opacity="0.5"/></svg>
+                        </button>
+                    </div>
                 </div>
-                <div class="progress-bar" id="progress-bar" data-duration="0">
-                    <div class="progress-fill" id="progress-fill"></div>
-                </div>
-            </div>
-
-            <div class="controls">
-                <button onclick="previousTrack()" data-i18n-title="player.previous" title="Previous" id="btn-previous">
-                    <svg viewBox="0 0 24 24">
-                        <path d="M6 6h2v12H6zm3.5 6l8.5 6V6z"/>
-                    </svg>
-                </button>
-                <button class="primary" onclick="togglePlayPause()" data-i18n-title="player.play" title="Play/Pause" id="btn-play-pause">
-                    <svg viewBox="0 0 24 24" id="play-pause-icon">
-                        <path d="M8 5v14l11-7z"/>
-                    </svg>
-                </button>
-                <button onclick="nextTrack()" data-i18n-title="player.next" title="Next" id="btn-next">
-                    <svg viewBox="0 0 24 24">
-                        <path d="M6 18l8.5-6L6 6v12zM16 6v12h2V6h-2z"/>
-                    </svg>
-                </button>
-            </div>
-
-            <div class="volume-container">
-                <button class="mute-btn" onclick="toggleMute()" data-i18n-title="player.mute" title="Mute" id="btn-mute">
-                    <svg viewBox="0 0 24 24" id="mute-icon">
-                        <path d="M3 9v6h4l5 5V4L7 9H3zm13.5 3c0-1.77-1.02-3.29-2.5-4.03v8.05c1.48-.73 2.5-2.25 2.5-4.02z"/>
-                    </svg>
-                </button>
-                <input type="range" id="volume-slider" min="0" max="100" value="50">
-                <div class="volume-display" id="volume-display">50%</div>
-            </div>
-
-            <div class="source-info">
-                <span data-i18n="player.source">Source:</span> <span id="source" data-i18n="player.unknown_source">Unknown</span>
             </div>
         </div>
 
@@ -218,7 +226,10 @@
 
             <!-- File/Folder Grid -->
             <div class="browser-grid" id="browserGrid">
-                <div class="browser-empty" data-i18n="browser.no_folder_selected">Select a folder to browse media files</div>
+                <div class="browser-empty empty-state-illustration">
+                    <svg viewBox="0 0 64 64"><path d="M8 16h20l4-6h20a4 4 0 014 4v36a4 4 0 01-4 4H8a4 4 0 01-4-4V20a4 4 0 014-4z"/><path d="M4 24h56" stroke-dasharray="4 3" opacity="0.4"/></svg>
+                    <p data-i18n="browser.no_folder_selected">Select a folder to browse media files</p>
+                </div>
             </div>
 
             <!-- Pagination -->
@@ -237,7 +248,10 @@
         <div class="scripts-container" id="scripts-container" data-tab-content="quick-actions" >
             <h2 data-i18n="scripts.quick_actions">Quick Actions</h2>
             <div class="scripts-grid" id="scripts-grid">
-                <div class="scripts-empty" data-i18n="scripts.no_scripts">No scripts configured</div>
+                <div class="scripts-empty empty-state-illustration">
+                    <svg viewBox="0 0 64 64"><path d="M20 8l-8 48"/><path d="M44 8l8 48"/><path d="M10 24h44"/><path d="M8 40h44"/></svg>
+                    <p data-i18n="scripts.no_scripts">No scripts configured</p>
+                </div>
             </div>
         </div>
 
@@ -259,7 +273,12 @@
                 </thead>
                 <tbody id="scriptsTableBody">
                     <tr>
-                        <td colspan="5" class="empty-state" data-i18n="scripts.empty">No scripts configured. Click "Add" to create one.</td>
+                        <td colspan="5" class="empty-state">
+                            <div class="empty-state-illustration">
+                                <svg viewBox="0 0 64 64"><rect x="8" y="4" width="48" height="56" rx="4"/><path d="M20 20h24M20 32h16M20 44h20"/></svg>
+                                <p data-i18n="scripts.empty">No scripts configured. Click "Add" to create one.</p>
+                            </div>
+                        </td>
                     </tr>
                 </tbody>
             </table>
@@ -285,7 +304,12 @@
                 </thead>
                 <tbody id="callbacksTableBody">
                     <tr>
-                        <td colspan="4" class="empty-state">No callbacks configured. Click "Add Callback" to create one.</td>
+                        <td colspan="4" class="empty-state">
+                            <div class="empty-state-illustration">
+                                <svg viewBox="0 0 64 64"><circle cx="32" cy="32" r="24"/><path d="M32 20v12l8 8"/></svg>
+                                <p>No callbacks configured. Click "Add" to create one.</p>
+                            </div>
+                        </td>
                     </tr>
                 </tbody>
             </table>
@@ -392,25 +416,25 @@
     <!-- Execution Result Dialog -->
     <dialog id="executionDialog">
         <div class="dialog-header">
-            <h3 id="executionDialogTitle">Execution Result</h3>
+            <h3 id="executionDialogTitle" data-i18n="scripts.execution.title">Execution Result</h3>
         </div>
         <div class="dialog-body">
             <div class="execution-status" id="executionStatus"></div>
             <div class="result-section" id="outputSection" style="display: none;">
-                <h4>Output</h4>
+                <h4 data-i18n="scripts.execution.output">Output</h4>
                 <div class="execution-result">
                     <pre id="executionOutput"></pre>
                 </div>
             </div>
             <div class="result-section" id="errorSection" style="display: none;">
-                <h4>Error Output</h4>
+                <h4 data-i18n="scripts.execution.error_output">Error Output</h4>
                 <div class="execution-result">
                     <pre id="executionError"></pre>
                 </div>
             </div>
         </div>
         <div class="dialog-footer">
-            <button type="button" class="btn-secondary" onclick="closeExecutionDialog()">Close</button>
+            <button type="button" class="btn-secondary" onclick="closeExecutionDialog()" data-i18n="scripts.execution.close">Close</button>
         </div>
     </dialog>
 
@@ -458,11 +482,11 @@
     <!-- Footer -->
     <footer>
         <div>
-            Created by <strong>Alexei Dolgolyov</strong>
+            <span data-i18n="footer.created_by">Created by</span> <strong>Alexei Dolgolyov</strong>
             <span class="separator">•</span>
             <a href="mailto:dolgolyov.alexei@gmail.com">dolgolyov.alexei@gmail.com</a>
             <span class="separator">•</span>
-            <a href="https://git.dolgolyov-family.by/alexei.dolgolyov/media-player-server" target="_blank" rel="noopener noreferrer">Source Code</a>
+            <a href="https://git.dolgolyov-family.by/alexei.dolgolyov/media-player-server" target="_blank" rel="noopener noreferrer" data-i18n="footer.source_code">Source Code</a>
         </div>
     </footer>
 

media_server/static/js/app.js

@@ -1,3 +1,64 @@
+        // SVG path constants (avoid rebuilding innerHTML on every state update)
+        const SVG_PLAY = '<path d="M8 5v14l11-7z"/>';
+        const SVG_PAUSE = '<path d="M6 19h4V5H6v14zm8-14v14h4V5h-4z"/>';
+        const SVG_STOP = '<path d="M6 6h12v12H6z"/>';
+        const SVG_IDLE = '<path d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-2 14.5v-9l6 4.5-6 4.5z"/>';
+        const SVG_MUTED = '<path d="M16.5 12c0-1.77-1.02-3.29-2.5-4.03v2.21l2.45 2.45c.03-.2.05-.41.05-.63zm2.5 0c0 .94-.2 1.82-.54 2.64l1.51 1.51C20.63 14.91 21 13.5 21 12c0-4.28-2.99-7.86-7-8.77v2.06c2.89.86 5 3.54 5 6.71zM4.27 3L3 4.27 7.73 9H3v6h4l5 5v-6.73l4.25 4.25c-.67.52-1.42.93-2.25 1.18v2.06c1.38-.31 2.63-.95 3.69-1.81L19.73 21 21 19.73l-9-9L4.27 3zM12 4L9.91 6.09 12 8.18V4z"/>';
+        const SVG_UNMUTED = '<path d="M3 9v6h4l5 5V4L7 9H3zm13.5 3c0-1.77-1.02-3.29-2.5-4.03v8.05c1.48-.73 2.5-2.25 2.5-4.02z"/>';
+
+        // Empty state illustration SVGs
+        const EMPTY_SVG_FOLDER = '<svg viewBox="0 0 64 64"><path d="M8 16h20l4-6h20a4 4 0 014 4v36a4 4 0 01-4 4H8a4 4 0 01-4-4V20a4 4 0 014-4z"/><path d="M4 24h56" stroke-dasharray="4 3" opacity="0.4"/></svg>';
+        const EMPTY_SVG_FILE = '<svg viewBox="0 0 64 64"><path d="M16 4h22l14 14v38a4 4 0 01-4 4H16a4 4 0 01-4-4V8a4 4 0 014-4z"/><path d="M38 4v14h14"/><path d="M22 32h20M22 40h14" opacity="0.5"/></svg>';
+        function emptyStateHtml(svgStr, text) {
+            return `<div class="empty-state-illustration">${svgStr}<p>${text}</p></div>`;
+        }
+
+        // Cached DOM references (populated once after DOMContentLoaded)
+        const dom = {};
+        function cacheDom() {
+            dom.trackTitle = document.getElementById('track-title');
+            dom.artist = document.getElementById('artist');
+            dom.album = document.getElementById('album');
+            dom.miniTrackTitle = document.getElementById('mini-track-title');
+            dom.miniArtist = document.getElementById('mini-artist');
+            dom.albumArt = document.getElementById('album-art');
+            dom.albumArtGlow = document.getElementById('album-art-glow');
+            dom.miniAlbumArt = document.getElementById('mini-album-art');
+            dom.volumeSlider = document.getElementById('volume-slider');
+            dom.volumeDisplay = document.getElementById('volume-display');
+            dom.miniVolumeSlider = document.getElementById('mini-volume-slider');
+            dom.miniVolumeDisplay = document.getElementById('mini-volume-display');
+            dom.progressFill = document.getElementById('progress-fill');
+            dom.currentTime = document.getElementById('current-time');
+            dom.totalTime = document.getElementById('total-time');
+            dom.progressBar = document.getElementById('progress-bar');
+            dom.miniProgressFill = document.getElementById('mini-progress-fill');
+            dom.miniCurrentTime = document.getElementById('mini-current-time');
+            dom.miniTotalTime = document.getElementById('mini-total-time');
+            dom.playbackState = document.getElementById('playback-state');
+            dom.stateIcon = document.getElementById('state-icon');
+            dom.playPauseIcon = document.getElementById('play-pause-icon');
+            dom.miniPlayPauseIcon = document.getElementById('mini-play-pause-icon');
+            dom.muteIcon = document.getElementById('mute-icon');
+            dom.miniMuteIcon = document.getElementById('mini-mute-icon');
+            dom.statusDot = document.getElementById('status-dot');
+            dom.source = document.getElementById('source');
+            dom.btnPlayPause = document.getElementById('btn-play-pause');
+            dom.btnNext = document.getElementById('btn-next');
+            dom.btnPrevious = document.getElementById('btn-previous');
+            dom.miniBtnPlayPause = document.getElementById('mini-btn-play-pause');
+            dom.miniPlayer = document.getElementById('mini-player');
+        }
+
+        // Timing constants
+        const VOLUME_THROTTLE_MS = 16;
+        const POSITION_INTERPOLATION_MS = 100;
+        const SEARCH_DEBOUNCE_MS = 200;
+        const TOAST_DURATION_MS = 3000;
+        const WS_RECONNECT_MS = 3000;
+        const WS_PING_INTERVAL_MS = 30000;
+        const VOLUME_RELEASE_DELAY_MS = 500;
+
         // Tab management
         let activeTab = 'player';
 
@@ -12,6 +73,23 @@
             }
         }
 
+        function updateTabIndicator(btn, animate = true) {
+            const indicator = document.getElementById('tabIndicator');
+            if (!indicator || !btn) return;
+            const tabBar = document.getElementById('tabBar');
+            const barRect = tabBar.getBoundingClientRect();
+            const btnRect = btn.getBoundingClientRect();
+            const offset = btnRect.left - barRect.left - parseFloat(getComputedStyle(tabBar).paddingLeft || 0);
+            if (!animate) indicator.style.transition = 'none';
+            indicator.style.width = btnRect.width + 'px';
+            indicator.style.transform = `translateX(${offset}px)`;
+            if (!animate) {
+                // Force reflow, then re-enable transition
+                indicator.offsetHeight;
+                indicator.style.transition = '';
+            }
+        }
+
         function switchTab(tabName) {
             activeTab = tabName;
 
@@ -30,7 +108,10 @@
             // Update tab buttons
             document.querySelectorAll('.tab-btn').forEach(btn => btn.classList.remove('active'));
             const activeBtn = document.querySelector(`.tab-btn[data-tab="${tabName}"]`);
-            if (activeBtn) activeBtn.classList.add('active');
+            if (activeBtn) {
+                activeBtn.classList.add('active');
+                updateTabIndicator(activeBtn);
+            }
 
             // Save to localStorage
             localStorage.setItem('activeTab', tabName);
@@ -75,6 +156,41 @@
             setTheme(newTheme);
         }
 
+        // Vinyl mode
+        let vinylMode = localStorage.getItem('vinylMode') === 'true';
+        let currentPlayState = 'idle';
+
+        function toggleVinylMode() {
+            vinylMode = !vinylMode;
+            localStorage.setItem('vinylMode', vinylMode);
+            applyVinylMode();
+        }
+
+        function applyVinylMode() {
+            const container = document.querySelector('.album-art-container');
+            const btn = document.getElementById('vinylToggle');
+            if (!container) return;
+            if (vinylMode) {
+                container.classList.add('vinyl');
+                if (btn) btn.classList.add('active');
+                updateVinylSpin();
+            } else {
+                container.classList.remove('vinyl', 'spinning', 'paused');
+                if (btn) btn.classList.remove('active');
+            }
+        }
+
+        function updateVinylSpin() {
+            const container = document.querySelector('.album-art-container');
+            if (!container || !vinylMode) return;
+            container.classList.remove('spinning', 'paused');
+            if (currentPlayState === 'playing') {
+                container.classList.add('spinning');
+            } else if (currentPlayState === 'paused') {
+                container.classList.add('paused');
+            }
+        }
+
         // Locale management
         let currentLocale = 'en';
         let translations = {};
@@ -240,6 +356,7 @@
 
         let ws = null;
         let reconnectTimeout = null;
+        let pingInterval = null;
         let currentState = 'idle';
         let currentDuration = 0;
         let currentPosition = 0;
@@ -247,6 +364,7 @@
         let volumeUpdateTimer = null;  // Timer for throttling volume updates
         let scripts = [];
         let lastStatus = null;  // Store last status for locale switching
+        let lastArtworkSource = null;  // Track artwork source to skip redundant loads
 
         // Dialog dirty state tracking
         let scriptFormDirty = false;
@@ -259,9 +377,15 @@
 
         // Initialize on page load
         window.addEventListener('DOMContentLoaded', async () => {
+            // Cache DOM references
+            cacheDom();
+
             // Initialize theme
             initTheme();
 
+            // Initialize vinyl mode
+            applyVinylMode();
+
             // Initialize locale (async - loads JSON file)
             await initLocale();
 
@@ -278,60 +402,61 @@
                 showAuthForm();
             }
 
-            // Volume slider event
+            // Shared volume slider setup (avoids duplicate handler code)
-            const volumeSlider = document.getElementById('volume-slider');
+            function setupVolumeSlider(sliderId) {
-            volumeSlider.addEventListener('input', (e) => {
+                const slider = document.getElementById(sliderId);
-                isUserAdjustingVolume = true;
+                slider.addEventListener('input', (e) => {
-                const volume = parseInt(e.target.value);
+                    isUserAdjustingVolume = true;
-                document.getElementById('volume-display').textContent = `${volume}%`;
+                    const volume = parseInt(e.target.value);
+                    // Sync both sliders and displays
+                    dom.volumeDisplay.textContent = `${volume}%`;
+                    dom.miniVolumeDisplay.textContent = `${volume}%`;
+                    dom.volumeSlider.value = volume;
+                    dom.miniVolumeSlider.value = volume;
 
-                // Throttle volume updates while dragging (update every 16ms via WebSocket)
+                    if (volumeUpdateTimer) clearTimeout(volumeUpdateTimer);
-                if (volumeUpdateTimer) {
+                    volumeUpdateTimer = setTimeout(() => {
-                    clearTimeout(volumeUpdateTimer);
+                        setVolume(volume);
-                }
+                        volumeUpdateTimer = null;
-                volumeUpdateTimer = setTimeout(() => {
+                    }, VOLUME_THROTTLE_MS);
+                });
+
+                slider.addEventListener('change', (e) => {
+                    if (volumeUpdateTimer) {
+                        clearTimeout(volumeUpdateTimer);
+                        volumeUpdateTimer = null;
+                    }
+                    const volume = parseInt(e.target.value);
                     setVolume(volume);
-                    volumeUpdateTimer = null;
+                    setTimeout(() => { isUserAdjustingVolume = false; }, VOLUME_RELEASE_DELAY_MS);
-                }, 16);
+                });
-            });
+            }
 
-            volumeSlider.addEventListener('change', (e) => {
+            setupVolumeSlider('volume-slider');
-                // Clear any pending throttled update
+            setupVolumeSlider('mini-volume-slider');
-                if (volumeUpdateTimer) {
-                    clearTimeout(volumeUpdateTimer);
-                    volumeUpdateTimer = null;
-                }
-
-                // Send final volume update immediately
-                const volume = parseInt(e.target.value);
-                setVolume(volume);
-                setTimeout(() => { isUserAdjustingVolume = false; }, 500);
-            });
 
             // Restore saved tab
             const savedTab = localStorage.getItem('activeTab') || 'player';
             switchTab(savedTab);
+            // Snap indicator to initial position without animation
+            const initialActiveBtn = document.querySelector('.tab-btn.active');
+            if (initialActiveBtn) updateTabIndicator(initialActiveBtn, false);
+
+            // Re-position tab indicator on window resize
+            window.addEventListener('resize', () => {
+                const activeBtn = document.querySelector('.tab-btn.active');
+                if (activeBtn) updateTabIndicator(activeBtn, false);
+            });
 
             // Mini Player: Intersection Observer to show/hide when main player scrolls out of view
             const playerContainer = document.querySelector('.player-container');
-            const miniPlayer = document.getElementById('mini-player');
 
-            const observerOptions = {
+            const observer = new IntersectionObserver((entries) => {
-                root: null, // viewport
-                threshold: 0.1, // trigger when 10% visible
-                rootMargin: '0px'
-            };
-
-            const observerCallback = (entries) => {
                 entries.forEach(entry => {
-                    // Only use scroll-based logic when on the player tab
                     if (activeTab !== 'player') return;
-
                     setMiniPlayerVisible(!entry.isIntersecting);
                 });
-            };
+            }, { threshold: 0.1 });
-
-            const observer = new IntersectionObserver(observerCallback, observerOptions);
             observer.observe(playerContainer);
 
             // Mini player progress bar click to seek
@@ -343,38 +468,6 @@
                 seek(position);
             });
 
-            // Mini player volume slider
-            const miniVolumeSlider = document.getElementById('mini-volume-slider');
-            miniVolumeSlider.addEventListener('input', (e) => {
-                isUserAdjustingVolume = true;
-                const volume = parseInt(e.target.value);
-                document.getElementById('mini-volume-display').textContent = `${volume}%`;
-                document.getElementById('volume-display').textContent = `${volume}%`;
-                document.getElementById('volume-slider').value = volume;
-
-                // Throttle volume updates while dragging (update every 16ms via WebSocket)
-                if (volumeUpdateTimer) {
-                    clearTimeout(volumeUpdateTimer);
-                }
-                volumeUpdateTimer = setTimeout(() => {
-                    setVolume(volume);
-                    volumeUpdateTimer = null;
-                }, 16);
-            });
-
-            miniVolumeSlider.addEventListener('change', (e) => {
-                // Clear any pending throttled update
-                if (volumeUpdateTimer) {
-                    clearTimeout(volumeUpdateTimer);
-                    volumeUpdateTimer = null;
-                }
-
-                // Send final volume update immediately
-                const volume = parseInt(e.target.value);
-                setVolume(volume);
-                setTimeout(() => { isUserAdjustingVolume = false; }, 500);
-            });
-
             // Progress bar click to seek
             const progressBar = document.getElementById('progress-bar');
             progressBar.addEventListener('click', (e) => {
@@ -468,6 +561,12 @@
         }
 
         function connectWebSocket(token) {
+            // Clear previous ping interval to prevent stacking
+            if (pingInterval) {
+                clearInterval(pingInterval);
+                pingInterval = null;
+            }
+
             const protocol = window.location.protocol === 'https:' ? 'wss:' : 'ws:';
             const wsUrl = `${protocol}//${window.location.host}/api/media/ws?token=${encodeURIComponent(token)}`;
 
@@ -518,25 +617,23 @@
                             console.log('Attempting to reconnect...');
                             connectWebSocket(savedToken);
                         }
-                    }, 3000);
+                    }, WS_RECONNECT_MS);
                 }
             };
 
-            // Send keepalive ping every 30 seconds
+            // Send keepalive ping
-            setInterval(() => {
+            pingInterval = setInterval(() => {
                 if (ws && ws.readyState === WebSocket.OPEN) {
                     ws.send(JSON.stringify({ type: 'ping' }));
                 }
-            }, 30000);
+            }, WS_PING_INTERVAL_MS);
         }
 
         function updateConnectionStatus(connected) {
-            const dot = document.getElementById('status-dot');
-
             if (connected) {
-                dot.classList.add('connected');
+                dom.statusDot.classList.add('connected');
             } else {
-                dot.classList.remove('connected');
+                dom.statusDot.classList.remove('connected');
             }
         }
 
@@ -546,28 +643,35 @@
 
             // Update track info
             const fallbackTitle = status.state === 'idle' ? t('player.no_media') : t('player.title_unavailable');
-            document.getElementById('track-title').textContent = status.title || fallbackTitle;
+            dom.trackTitle.textContent = status.title || fallbackTitle;
-            document.getElementById('artist').textContent = status.artist || '';
+            dom.artist.textContent = status.artist || '';
-            document.getElementById('album').textContent = status.album || '';
+            dom.album.textContent = status.album || '';
 
             // Update mini player info
-            document.getElementById('mini-track-title').textContent = status.title || fallbackTitle;
+            dom.miniTrackTitle.textContent = status.title || fallbackTitle;
-            document.getElementById('mini-artist').textContent = status.artist || '';
+            dom.miniArtist.textContent = status.artist || '';
 
             // Update state
             const previousState = currentState;
             currentState = status.state;
             updatePlaybackState(status.state);
 
-            // Update album art
+            // Update album art (skip if same source to avoid redundant network requests)
-            const artImg = document.getElementById('album-art');
+            const artworkSource = status.album_art_url || null;
-            const miniArtImg = document.getElementById('mini-album-art');
-            const artworkUrl = status.album_art_url
-                ? `/api/media/artwork?token=${encodeURIComponent(localStorage.getItem('media_server_token'))}&_=${Date.now()}`
-                : "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 300 300'%3E%3Crect fill='%23282828' width='300' height='300'/%3E%3Cpath fill='%236a6a6a' d='M150 80c-38.66 0-70 31.34-70 70s31.34 70 70 70 70-31.34 70-70-31.34-70-70-70zm0 20c27.614 0 50 22.386 50 50s-22.386 50-50 50-50-22.386-50-50 22.386-50 50-50zm0 30a20 20 0 100 40 20 20 0 000-40z'/%3E%3C/svg%3E";
 
-            artImg.src = artworkUrl;
+            if (artworkSource !== lastArtworkSource) {
-            miniArtImg.src = artworkUrl;
+                lastArtworkSource = artworkSource;
+                const artworkUrl = artworkSource
+                    ? `/api/media/artwork?token=${encodeURIComponent(localStorage.getItem('media_server_token'))}&_=${Date.now()}`
+                    : "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 300 300'%3E%3Crect fill='%23282828' width='300' height='300'/%3E%3Cpath fill='%236a6a6a' d='M150 80c-38.66 0-70 31.34-70 70s31.34 70 70 70 70-31.34 70-70-31.34-70-70-70zm0 20c27.614 0 50 22.386 50 50s-22.386 50-50 50-50-22.386-50-50 22.386-50 50-50zm0 30a20 20 0 100 40 20 20 0 000-40z'/%3E%3C/svg%3E";
+                dom.albumArt.src = artworkUrl;
+                dom.miniAlbumArt.src = artworkUrl;
+                if (dom.albumArtGlow) {
+                    dom.albumArtGlow.src = artworkSource
+                        ? artworkUrl
+                        : "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 300 300'%3E%3Crect fill='%23282828' width='300' height='300'/%3E%3C/svg%3E";
+                }
+            }
 
             // Update progress
             if (status.duration && status.position !== null) {
@@ -583,24 +687,24 @@
 
             // Update volume
             if (!isUserAdjustingVolume) {
-                document.getElementById('volume-slider').value = status.volume;
+                dom.volumeSlider.value = status.volume;
-                document.getElementById('volume-display').textContent = `${status.volume}%`;
+                dom.volumeDisplay.textContent = `${status.volume}%`;
-                document.getElementById('mini-volume-slider').value = status.volume;
+                dom.miniVolumeSlider.value = status.volume;
-                document.getElementById('mini-volume-display').textContent = `${status.volume}%`;
+                dom.miniVolumeDisplay.textContent = `${status.volume}%`;
             }
 
             // Update mute state
             updateMuteIcon(status.muted);
 
             // Update source
-            document.getElementById('source').textContent = status.source || t('player.unknown_source');
+            dom.source.textContent = status.source || t('player.unknown_source');
 
             // Enable/disable controls based on state
             const hasMedia = status.state !== 'idle';
-            document.getElementById('btn-play-pause').disabled = !hasMedia;
+            dom.btnPlayPause.disabled = !hasMedia;
-            document.getElementById('btn-next').disabled = !hasMedia;
+            dom.btnNext.disabled = !hasMedia;
-            document.getElementById('btn-previous').disabled = !hasMedia;
+            dom.btnPrevious.disabled = !hasMedia;
-            document.getElementById('mini-btn-play-pause').disabled = !hasMedia;
+            dom.miniBtnPlayPause.disabled = !hasMedia;
 
             // Start/stop position interpolation based on playback state
             if (status.state === 'playing' && previousState !== 'playing') {
@@ -611,49 +715,50 @@
         }
 
         function updatePlaybackState(state) {
-            const stateText = document.getElementById('playback-state');
+            currentPlayState = state;
-            const stateIcon = document.getElementById('state-icon');
-            const playPauseIcon = document.getElementById('play-pause-icon');
-            const miniPlayPauseIcon = document.getElementById('mini-play-pause-icon');
-
             switch(state) {
                 case 'playing':
-                    stateText.textContent = t('state.playing');
+                    dom.playbackState.textContent = t('state.playing');
-                    stateIcon.innerHTML = '<path d="M8 5v14l11-7z"/>';
+                    dom.stateIcon.innerHTML = SVG_PLAY;
-                    playPauseIcon.innerHTML = '<path d="M6 19h4V5H6v14zm8-14v14h4V5h-4z"/>';
+                    dom.playPauseIcon.innerHTML = SVG_PAUSE;
-                    miniPlayPauseIcon.innerHTML = '<path d="M6 19h4V5H6v14zm8-14v14h4V5h-4z"/>';
+                    dom.miniPlayPauseIcon.innerHTML = SVG_PAUSE;
                     break;
                 case 'paused':
-                    stateText.textContent = t('state.paused');
+                    dom.playbackState.textContent = t('state.paused');
-                    stateIcon.innerHTML = '<path d="M6 19h4V5H6v14zm8-14v14h4V5h-4z"/>';
+                    dom.stateIcon.innerHTML = SVG_PAUSE;
-                    playPauseIcon.innerHTML = '<path d="M8 5v14l11-7z"/>';
+                    dom.playPauseIcon.innerHTML = SVG_PLAY;
-                    miniPlayPauseIcon.innerHTML = '<path d="M8 5v14l11-7z"/>';
+                    dom.miniPlayPauseIcon.innerHTML = SVG_PLAY;
                     break;
                 case 'stopped':
-                    stateText.textContent = t('state.stopped');
+                    dom.playbackState.textContent = t('state.stopped');
-                    stateIcon.innerHTML = '<path d="M6 6h12v12H6z"/>';
+                    dom.stateIcon.innerHTML = SVG_STOP;
-                    playPauseIcon.innerHTML = '<path d="M8 5v14l11-7z"/>';
+                    dom.playPauseIcon.innerHTML = SVG_PLAY;
-                    miniPlayPauseIcon.innerHTML = '<path d="M8 5v14l11-7z"/>';
+                    dom.miniPlayPauseIcon.innerHTML = SVG_PLAY;
                     break;
                 default:
-                    stateText.textContent = t('state.idle');
+                    dom.playbackState.textContent = t('state.idle');
-                    stateIcon.innerHTML = '<path d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-2 14.5v-9l6 4.5-6 4.5z"/>';
+                    dom.stateIcon.innerHTML = SVG_IDLE;
-                    playPauseIcon.innerHTML = '<path d="M8 5v14l11-7z"/>';
+                    dom.playPauseIcon.innerHTML = SVG_PLAY;
-                    miniPlayPauseIcon.innerHTML = '<path d="M8 5v14l11-7z"/>';
+                    dom.miniPlayPauseIcon.innerHTML = SVG_PLAY;
             }
+            updateVinylSpin();
         }
 
         function updateProgress(position, duration) {
             const percent = (position / duration) * 100;
-            document.getElementById('progress-fill').style.width = `${percent}%`;
+            const widthStr = `${percent}%`;
-            document.getElementById('current-time').textContent = formatTime(position);
+            const currentStr = formatTime(position);
-            document.getElementById('total-time').textContent = formatTime(duration);
+            const totalStr = formatTime(duration);
-            document.getElementById('progress-bar').dataset.duration = duration;
 
-            // Update mini player progress
+            dom.progressFill.style.width = widthStr;
-            document.getElementById('mini-progress-fill').style.width = `${percent}%`;
+            dom.currentTime.textContent = currentStr;
-            document.getElementById('mini-current-time').textContent = formatTime(position);
+            dom.totalTime.textContent = totalStr;
-            document.getElementById('mini-total-time').textContent = formatTime(duration);
+            dom.progressBar.dataset.duration = duration;
+
+            dom.miniProgressFill.style.width = widthStr;
+            dom.miniCurrentTime.textContent = currentStr;
+            dom.miniTotalTime.textContent = totalStr;
+            if (dom.miniPlayer) dom.miniPlayer.style.setProperty('--mini-progress', widthStr);
         }
 
         function startPositionInterpolation() {
@@ -665,14 +770,11 @@
             // Update position every 100ms for smooth animation
             interpolationInterval = setInterval(() => {
                 if (currentState === 'playing' && currentDuration > 0 && lastPositionUpdate > 0) {
-                    // Calculate elapsed time since last position update
                     const elapsed = (Date.now() - lastPositionUpdate) / 1000;
                     const interpolatedPosition = Math.min(lastPositionValue + elapsed, currentDuration);
-
-                    // Update UI with interpolated position
                     updateProgress(interpolatedPosition, currentDuration);
                 }
-            }, 100);
+            }, POSITION_INTERPOLATION_MS);
         }
 
         function stopPositionInterpolation() {
@@ -683,18 +785,9 @@
         }
 
         function updateMuteIcon(muted) {
-            const muteIcon = document.getElementById('mute-icon');
+            const path = muted ? SVG_MUTED : SVG_UNMUTED;
-            const miniMuteIcon = document.getElementById('mini-mute-icon');
+            dom.muteIcon.innerHTML = path;
-            const mutedPath = '<path d="M16.5 12c0-1.77-1.02-3.29-2.5-4.03v2.21l2.45 2.45c.03-.2.05-.41.05-.63zm2.5 0c0 .94-.2 1.82-.54 2.64l1.51 1.51C20.63 14.91 21 13.5 21 12c0-4.28-2.99-7.86-7-8.77v2.06c2.89.86 5 3.54 5 6.71zM4.27 3L3 4.27 7.73 9H3v6h4l5 5v-6.73l4.25 4.25c-.67.52-1.42.93-2.25 1.18v2.06c1.38-.31 2.63-.95 3.69-1.81L19.73 21 21 19.73l-9-9L4.27 3zM12 4L9.91 6.09 12 8.18V4z"/>';
+            dom.miniMuteIcon.innerHTML = path;
-            const unmutedPath = '<path d="M3 9v6h4l5 5V4L7 9H3zm13.5 3c0-1.77-1.02-3.29-2.5-4.03v8.05c1.48-.73 2.5-2.25 2.5-4.02z"/>';
-
-            if (muted) {
-                muteIcon.innerHTML = mutedPath;
-                miniMuteIcon.innerHTML = mutedPath;
-            } else {
-                muteIcon.innerHTML = unmutedPath;
-                miniMuteIcon.innerHTML = unmutedPath;
-            }
         }
 
         function formatTime(seconds) {
@@ -723,10 +816,13 @@
             try {
                 const response = await fetch(`/api/media/${endpoint}`, options);
                 if (!response.ok) {
+                    const data = await response.json().catch(() => ({}));
                     console.error(`Command ${endpoint} failed:`, response.status);
+                    showToast(data.detail || `Command failed: ${endpoint}`, 'error');
                 }
             } catch (error) {
                 console.error(`Error sending command ${endpoint}:`, error);
+                showToast(`Connection error: ${endpoint}`, 'error');
             }
         }
 
@@ -746,7 +842,10 @@
             sendCommand('previous');
         }
 
+        let lastSentVolume = -1;
         function setVolume(volume) {
+            if (volume === lastSentVolume) return;
+            lastSentVolume = volume;
             // Use WebSocket for low-latency volume updates
             if (ws && ws.readyState === WebSocket.OPEN) {
                 ws.send(JSON.stringify({ type: 'volume', volume: volume }));
@@ -788,7 +887,7 @@
             const grid = document.getElementById('scripts-grid');
 
             if (scripts.length === 0) {
-                grid.innerHTML = `<div class="scripts-empty">${t('scripts.no_scripts')}</div>`;
+                grid.innerHTML = `<div class="scripts-empty empty-state-illustration"><svg viewBox="0 0 64 64"><path d="M20 8l-8 48"/><path d="M44 8l8 48"/><path d="M10 24h44"/><path d="M8 40h44"/></svg><p>${t('scripts.no_scripts')}</p></div>`;
                 return;
             }
 
@@ -855,12 +954,20 @@
 
             setTimeout(() => {
                 toast.classList.remove('show');
-            }, 3000);
+            }, TOAST_DURATION_MS);
         }
 
         // Script Management Functions
 
+        let _loadScriptsPromise = null;
         async function loadScriptsTable() {
+            if (_loadScriptsPromise) return _loadScriptsPromise;
+            _loadScriptsPromise = _loadScriptsTableImpl();
+            _loadScriptsPromise.finally(() => { _loadScriptsPromise = null; });
+            return _loadScriptsPromise;
+        }
+
+        async function _loadScriptsTableImpl() {
             const token = localStorage.getItem('media_server_token');
             const tbody = document.getElementById('scriptsTableBody');
 
@@ -876,7 +983,7 @@
                 const scriptsList = await response.json();
 
                 if (scriptsList.length === 0) {
-                    tbody.innerHTML = '<tr><td colspan="5" class="empty-state">No scripts configured. Click "Add Script" to create one.</td></tr>';
+                    tbody.innerHTML = '<tr><td colspan="5" class="empty-state"><div class="empty-state-illustration"><svg viewBox="0 0 64 64"><rect x="8" y="4" width="48" height="56" rx="4"/><path d="M20 20h24M20 32h16M20 44h20"/></svg><p>' + t('scripts.empty') + '</p></div></td></tr>';
                     return;
                 }
 
@@ -997,6 +1104,9 @@
         async function saveScript(event) {
             event.preventDefault();
 
+            const submitBtn = event.target.querySelector('button[type="submit"]');
+            if (submitBtn) submitBtn.disabled = true;
+
             const token = localStorage.getItem('media_server_token');
             const isEdit = document.getElementById('scriptIsEdit').value === 'true';
             const scriptName = isEdit ?
@@ -1032,15 +1142,16 @@
 
                 if (response.ok && result.success) {
                     showToast(`Script ${isEdit ? 'updated' : 'created'} successfully`, 'success');
-                    scriptFormDirty = false; // Reset dirty state before closing
+                    scriptFormDirty = false;
                     closeScriptDialog();
-                    // Don't reload manually - WebSocket will trigger it
                 } else {
                     showToast(result.detail || `Failed to ${isEdit ? 'update' : 'create'} script`, 'error');
                 }
             } catch (error) {
                 console.error('Error saving script:', error);
                 showToast(`Error ${isEdit ? 'updating' : 'creating'} script`, 'error');
+            } finally {
+                if (submitBtn) submitBtn.disabled = false;
             }
         }
 
@@ -1075,7 +1186,15 @@
 
         // Callback Management Functions
 
+        let _loadCallbacksPromise = null;
         async function loadCallbacksTable() {
+            if (_loadCallbacksPromise) return _loadCallbacksPromise;
+            _loadCallbacksPromise = _loadCallbacksTableImpl();
+            _loadCallbacksPromise.finally(() => { _loadCallbacksPromise = null; });
+            return _loadCallbacksPromise;
+        }
+
+        async function _loadCallbacksTableImpl() {
             const token = localStorage.getItem('media_server_token');
             const tbody = document.getElementById('callbacksTableBody');
 
@@ -1091,7 +1210,7 @@
                 const callbacksList = await response.json();
 
                 if (callbacksList.length === 0) {
-                    tbody.innerHTML = '<tr><td colspan="4" class="empty-state">No callbacks configured. Click "Add Callback" to create one.</td></tr>';
+                    tbody.innerHTML = '<tr><td colspan="4" class="empty-state"><div class="empty-state-illustration"><svg viewBox="0 0 64 64"><circle cx="32" cy="32" r="24"/><path d="M32 20v12l8 8"/></svg><p>' + t('callbacks.empty') + '</p></div></td></tr>';
                     return;
                 }
 
@@ -1201,6 +1320,9 @@
         async function saveCallback(event) {
             event.preventDefault();
 
+            const submitBtn = event.target.querySelector('button[type="submit"]');
+            if (submitBtn) submitBtn.disabled = true;
+
             const token = localStorage.getItem('media_server_token');
             const isEdit = document.getElementById('callbackIsEdit').value === 'true';
             const callbackName = document.getElementById('callbackName').value;
@@ -1232,7 +1354,7 @@
 
                 if (response.ok && result.success) {
                     showToast(`Callback ${isEdit ? 'updated' : 'created'} successfully`, 'success');
-                    callbackFormDirty = false; // Reset dirty state before closing
+                    callbackFormDirty = false;
                     closeCallbackDialog();
                     loadCallbacksTable();
                 } else {
@@ -1241,6 +1363,8 @@
             } catch (error) {
                 console.error('Error saving callback:', error);
                 showToast(`Error ${isEdit ? 'updating' : 'creating'} callback`, 'error');
+            } finally {
+                if (submitBtn) submitBtn.disabled = false;
             }
         }
 
@@ -1511,6 +1635,7 @@ function showRootFolders() {
 
     // Render folders as grid cards
     const container = document.getElementById('browserGrid');
+    revokeBlobUrls(container);
     if (viewMode === 'list') {
         container.className = 'browser-list';
     } else if (viewMode === 'compact') {
@@ -1662,8 +1787,15 @@ function renderBreadcrumbs(currentPath, parentPath) {
     });
 }
 
+function revokeBlobUrls(container) {
+    container.querySelectorAll('img[src^="blob:"]').forEach(img => {
+        URL.revokeObjectURL(img.src);
+    });
+}
+
 function renderBrowserItems(items) {
     const container = document.getElementById('browserGrid');
+    revokeBlobUrls(container);
     // Switch container class based on view mode
     if (viewMode === 'list') {
         container.className = 'browser-list';
@@ -1681,7 +1813,7 @@ function renderBrowserList(items, container) {
     container.innerHTML = '';
 
     if (!items || items.length === 0) {
-        container.innerHTML = `<div class="browser-empty" data-i18n="browser.no_items">${t('browser.no_items')}</div>`;
+        container.innerHTML = `<div class="browser-empty">${emptyStateHtml(EMPTY_SVG_FILE, t('browser.no_items'))}</div>`;
         return;
     }
 
@@ -1774,7 +1906,7 @@ function renderBrowserGrid(items, container) {
     container.innerHTML = '';
 
     if (!items || items.length === 0) {
-        container.innerHTML = `<div class="browser-empty" data-i18n="browser.no_items">${t('browser.no_items')}</div>`;
+        container.innerHTML = `<div class="browser-empty">${emptyStateHtml(EMPTY_SVG_FILE, t('browser.no_items'))}</div>`;
         return;
     }
 
@@ -1943,6 +2075,10 @@ async function loadThumbnail(imgElement, fileName) {
                 imgElement.classList.add('loaded');
             };
 
+            // Revoke previous blob URL if any
+            if (imgElement.src && imgElement.src.startsWith('blob:')) {
+                URL.revokeObjectURL(imgElement.src);
+            }
             imgElement.src = url;
         } else {
             // Fallback to icon (204 = no thumbnail available)
@@ -1964,7 +2100,11 @@ async function loadThumbnail(imgElement, fileName) {
     }
 }
 
+let playInProgress = false;
+
 async function playMediaFile(fileName) {
+    if (playInProgress) return;
+    playInProgress = true;
     try {
         const token = localStorage.getItem('media_server_token');
         if (!token) {
@@ -1988,15 +2128,20 @@ async function playMediaFile(fileName) {
 
         if (!response.ok) throw new Error('Failed to play file');
 
-        const data = await response.json();
         showToast(t('browser.play_success', { filename: fileName }), 'success');
     } catch (error) {
         console.error('Error playing file:', error);
         showToast(t('browser.play_error'), 'error');
+    } finally {
+        playInProgress = false;
     }
 }
 
 async function playAllFolder() {
+    if (playInProgress) return;
+    playInProgress = true;
+    const btn = document.getElementById('playAllBtn');
+    if (btn) btn.disabled = true;
     try {
         const token = localStorage.getItem('media_server_token');
         if (!token || !currentFolderId) return;
@@ -2020,6 +2165,9 @@ async function playAllFolder() {
     } catch (error) {
         console.error('Error playing folder:', error);
         showToast(t('browser.play_all_error'), 'error');
+    } finally {
+        playInProgress = false;
+        if (btn) btn.disabled = false;
     }
 }
 
@@ -2108,7 +2256,7 @@ function onBrowserSearch() {
     browserSearchTimer = setTimeout(() => {
         browserSearchTerm = term.toLowerCase();
         applyBrowserSearch();
-    }, 200);
+    }, SEARCH_DEBOUNCE_MS);
 }
 
 function clearBrowserSearch() {
@@ -2206,7 +2354,7 @@ function initBrowserToolbar() {
 
 function clearBrowserGrid() {
     const grid = document.getElementById('browserGrid');
-    grid.innerHTML = `<div class="browser-empty" data-i18n="browser.no_folder_selected">${t('browser.no_folder_selected')}</div>`;
+    grid.innerHTML = `<div class="browser-empty">${emptyStateHtml(EMPTY_SVG_FOLDER, t('browser.no_folder_selected'))}</div>`;
     document.getElementById('breadcrumb').innerHTML = '';
     document.getElementById('browserPagination').style.display = 'none';
     document.getElementById('playAllBtn').style.display = 'none';

media_server/static/locales/en.json

@@ -21,6 +21,7 @@
   "player.title_unavailable": "Title unavailable",
   "player.source": "Source:",
   "player.unknown_source": "Unknown",
+  "player.vinyl": "Vinyl mode",
   "state.playing": "Playing",
   "state.paused": "Paused",
   "state.stopped": "Stopped",
@@ -65,6 +66,10 @@
   "scripts.msg.load_failed": "Failed to load script details",
   "scripts.msg.list_failed": "Failed to load scripts",
   "scripts.confirm.delete": "Are you sure you want to delete the script \"{name}\"?",
+  "scripts.execution.title": "Execution Result",
+  "scripts.execution.output": "Output",
+  "scripts.execution.error_output": "Error Output",
+  "scripts.execution.close": "Close",
   "scripts.confirm.unsaved": "You have unsaved changes. Are you sure you want to discard them?",
   "callbacks.management": "Callback Management",
   "callbacks.description": "Callbacks are scripts triggered automatically by media control events (play, pause, stop, etc.)",
@@ -148,5 +153,7 @@
   "browser.folder_dialog.path_help": "Absolute path to media directory",
   "browser.folder_dialog.enabled": "Enabled",
   "browser.folder_dialog.cancel": "Cancel",
-  "browser.folder_dialog.save": "Save"
+  "browser.folder_dialog.save": "Save",
+  "footer.created_by": "Created by",
+  "footer.source_code": "Source Code"
 }

media_server/static/locales/ru.json

@@ -21,6 +21,7 @@
   "player.title_unavailable": "Название недоступно",
   "player.source": "Источник:",
   "player.unknown_source": "Неизвестно",
+  "player.vinyl": "Режим винила",
   "state.playing": "Воспроизведение",
   "state.paused": "Пауза",
   "state.stopped": "Остановлено",
@@ -65,6 +66,10 @@
   "scripts.msg.load_failed": "Не удалось загрузить данные скрипта",
   "scripts.msg.list_failed": "Не удалось загрузить скрипты",
   "scripts.confirm.delete": "Вы уверены, что хотите удалить скрипт \"{name}\"?",
+  "scripts.execution.title": "Результат выполнения",
+  "scripts.execution.output": "Вывод",
+  "scripts.execution.error_output": "Вывод ошибок",
+  "scripts.execution.close": "Закрыть",
   "scripts.confirm.unsaved": "У вас есть несохраненные изменения. Вы уверены, что хотите отменить их?",
   "callbacks.management": "Управление Обратными Вызовами",
   "callbacks.description": "Обратные вызовы - это скрипты, автоматически запускаемые при событиях управления медиа (воспроизведение, пауза, остановка и т.д.)",
@@ -148,5 +153,7 @@
   "browser.folder_dialog.path_help": "Абсолютный путь к медиа каталогу",
   "browser.folder_dialog.enabled": "Включено",
   "browser.folder_dialog.cancel": "Отмена",
-  "browser.folder_dialog.save": "Сохранить"
+  "browser.folder_dialog.save": "Сохранить",
+  "footer.created_by": "Создано",
+  "footer.source_code": "Исходный код"
 }

scripts/install_task_windows.ps1

@@ -2,17 +2,17 @@ Unregister-ScheduledTask -TaskName "MediaServer" -Confirm:$false -ErrorAction Si
 
 # Get the media-server directory (parent of scripts folder)
 $serverRoot = (Get-Item $PSScriptRoot).Parent.FullName
+$vbsPath = Join-Path $PSScriptRoot "start-hidden.vbs"
 
-# Find Python executable
+if (-not (Test-Path $vbsPath)) {
-$pythonPath = (Get-Command python -ErrorAction SilentlyContinue).Source
+    Write-Error "start-hidden.vbs not found in scripts folder."
-if (-not $pythonPath) {
-    Write-Error "Python not found in PATH. Please ensure Python is installed and accessible."
     exit 1
 }
 
-$action = New-ScheduledTaskAction -Execute $pythonPath -Argument "-m media_server.main" -WorkingDirectory $serverRoot
+# Launch via wscript + VBS to run python completely hidden (no console window)
-$trigger = New-ScheduledTaskTrigger -AtStartup
+$action = New-ScheduledTaskAction -Execute "wscript.exe" -Argument "`"$vbsPath`"" -WorkingDirectory $serverRoot
-$principal = New-ScheduledTaskPrincipal -UserId "$env:USERNAME" -LogonType S4U -RunLevel Highest
+$trigger = New-ScheduledTaskTrigger -AtLogon -User "$env:USERNAME"
+$principal = New-ScheduledTaskPrincipal -UserId "$env:USERNAME" -LogonType Interactive -RunLevel Highest
 $settings = New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DontStopIfGoingOnBatteries -StartWhenAvailable
 Register-ScheduledTask -TaskName "MediaServer" -Action $action -Trigger $trigger -Principal $principal -Settings $settings -Description "Media Server for Home Assistant"
 

scripts/start-hidden.vbs

@@ -0,0 +1,7 @@
+Set WshShell = CreateObject("WScript.Shell")
+' Get the directory of this script (scripts\), then go up to media-server root
+scriptDir = CreateObject("Scripting.FileSystemObject").GetParentFolderName(WScript.ScriptFullName)
+serverRoot = CreateObject("Scripting.FileSystemObject").GetParentFolderName(scriptDir)
+WshShell.CurrentDirectory = serverRoot
+' Run python completely hidden (0 = hidden, False = don't wait)
+WshShell.Run "python -m media_server.main", 0, False