feat: Applied glassmorphism styling (backdrop-filter blur, semi-transpa…

- "src/frontend/src/pages/ChannelDetail.tsx"

GSD-Task: S03/T03

.gitignore

@@ -52,3 +52,4 @@ venv/
 target/
 vendor/
 config/
+media/

docker-compose.yml

@@ -6,7 +6,7 @@ services:
     ports:
       - "8989:8989"
     volumes:
-      - ./config:/config
+      - tubearr-config:/config
       - ./media:/media
     environment:
       - NODE_ENV=production
@@ -18,3 +18,6 @@ services:
       retries: 3
       start_period: 15s
     restart: unless-stopped
+
+volumes:
+  tubearr-config:

src/__tests__/download.test.ts

@@ -344,7 +344,7 @@ describe('DownloadService', () => {
       const args = execYtDlpMock.mock.calls[0][0] as string[];
       expect(args).toContain('-f');
       const fIdx = args.indexOf('-f');
-      expect(args[fIdx + 1]).toBe('bestvideo[height<=1080]+bestaudio/best[height<=1080]');
+      expect(args[fIdx + 1]).toBe('bestvideo[height<=1080]+bestaudio/bestvideo[height<=1080]*+bestaudio/best[height<=1080]/bestvideo+bestaudio/best');
       expect(args).toContain('--merge-output-format');
       const moIdx = args.indexOf('--merge-output-format');
       expect(args[moIdx + 1]).toBe('mkv');
@@ -431,7 +431,7 @@ describe('DownloadService', () => {
       const args = execYtDlpMock.mock.calls[0][0] as string[];
       expect(args).toContain('-f');
       const fIdx = args.indexOf('-f');
-      expect(args[fIdx + 1]).toBe('best');
+      expect(args[fIdx + 1]).toBe('bestvideo+bestaudio/best');
     });
 
     it('falls back to -f "bestaudio" for audio when no format profile', async () => {
@@ -652,7 +652,7 @@ describe('DownloadService', () => {
       const args = execYtDlpMock.mock.calls[0][0] as string[];
       const fIdx = args.indexOf('-f');
       expect(fIdx).toBeGreaterThanOrEqual(0);
-      expect(args[fIdx + 1]).toBe('bestvideo+bestaudio/best');
+      expect(args[fIdx + 1]).toBe('bestvideo+bestaudio/bestvideo*+bestaudio/best');
       // Should default to mp4 merge format when containerFormat is null
       expect(args).toContain('--merge-output-format');
       const moIdx = args.indexOf('--merge-output-format');
@@ -695,7 +695,7 @@ describe('DownloadService', () => {
 
       const args = execYtDlpMock.mock.calls[0][0] as string[];
       const fIdx = args.indexOf('-f');
-      expect(args[fIdx + 1]).toBe('bestvideo+bestaudio/best');
+      expect(args[fIdx + 1]).toBe('bestvideo+bestaudio/bestvideo*+bestaudio/best');
       const moIdx = args.indexOf('--merge-output-format');
       expect(args[moIdx + 1]).toBe('mkv');
     });

src/db/repositories/content-repository.ts

@@ -92,6 +92,81 @@ export async function getContentByChannelId(
   return rows.map(mapRow);
 }
 
+/** Optional filters for channel content queries. */
+export interface ChannelContentFilters {
+  search?: string;
+  status?: ContentStatus;
+  contentType?: ContentType;
+  sortBy?: 'title' | 'publishedAt' | 'status' | 'duration' | 'fileSize' | 'downloadedAt';
+  sortDirection?: 'asc' | 'desc';
+}
+
+/**
+ * Get paginated content items for a channel with optional search, filter, and sort.
+ * Returns items and total count for pagination.
+ */
+export async function getChannelContentPaginated(
+  db: Db,
+  channelId: number,
+  filters?: ChannelContentFilters,
+  page = 1,
+  pageSize = 50
+): Promise<PaginatedContentResult> {
+  const conditions = [eq(contentItems.channelId, channelId)];
+
+  if (filters?.search) {
+    conditions.push(like(contentItems.title, `%${filters.search}%`));
+  }
+  if (filters?.status) {
+    conditions.push(eq(contentItems.status, filters.status));
+  }
+  if (filters?.contentType) {
+    conditions.push(eq(contentItems.contentType, filters.contentType));
+  }
+
+  const whereClause = and(...conditions);
+  const offset = (page - 1) * pageSize;
+
+  // Count total matching records
+  const countResult = await db
+    .select({ count: sql<number>`count(*)` })
+    .from(contentItems)
+    .where(whereClause);
+
+  const total = Number(countResult[0].count);
+
+  // Build sort order
+  const sortCol = resolveSortColumn(filters?.sortBy);
+  const sortDir = filters?.sortDirection === 'asc' ? sortCol : desc(sortCol);
+
+  // Fetch paginated results
+  const rows = await db
+    .select()
+    .from(contentItems)
+    .where(whereClause)
+    .orderBy(sortDir, desc(contentItems.id))
+    .limit(pageSize)
+    .offset(offset);
+
+  return {
+    items: rows.map(mapRow),
+    total,
+  };
+}
+
+/** Resolve sort column name to Drizzle column reference. */
+function resolveSortColumn(sortBy?: string) {
+  switch (sortBy) {
+    case 'title': return contentItems.title;
+    case 'publishedAt': return contentItems.publishedAt;
+    case 'status': return contentItems.status;
+    case 'duration': return contentItems.duration;
+    case 'fileSize': return contentItems.fileSize;
+    case 'downloadedAt': return contentItems.downloadedAt;
+    default: return contentItems.createdAt;
+  }
+}
+
 /** Check if a specific content item exists for a channel. Returns the item or null. */
 export async function getContentByPlatformContentId(
   db: Db,

src/frontend/src/App.tsx

@@ -1,5 +1,6 @@
 import { Routes, Route, Navigate } from 'react-router-dom';
 import { Sidebar } from './components/Sidebar';
+import { ToastProvider } from './components/Toast';
 import { Channels } from './pages/Channels';
 import { ChannelDetail } from './pages/ChannelDetail';
 import { Library } from './pages/Library';
@@ -37,8 +38,10 @@ function AuthenticatedLayout() {
 
 export function App() {
   return (
+    <ToastProvider>
       <Routes>
         <Route path="/*" element={<AuthenticatedLayout />} />
       </Routes>
+    </ToastProvider>
   );
 }

src/frontend/src/api/hooks/useContent.ts

@@ -1,8 +1,8 @@
-import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
+import { useQuery, useMutation, useQueryClient, keepPreviousData } from '@tanstack/react-query';
 import { apiClient } from '../client';
 import { queueKeys } from './useQueue';
 import type { ContentItem } from '@shared/types/index';
-import type { ApiResponse } from '@shared/types/api';
+import type { ApiResponse, PaginatedResponse } from '@shared/types/api';
 
 // ── Collect Types ──
 
@@ -13,15 +13,29 @@ export interface CollectResult {
   items: Array<{ contentItemId: number; status: string }>;
 }
 
+// ── Channel Content Filter Types ──
+
+export interface ChannelContentFilters {
+  page?: number;
+  pageSize?: number;
+  search?: string;
+  status?: string;
+  contentType?: string;
+  sortBy?: string;
+  sortDirection?: 'asc' | 'desc';
+}
+
 // ── Query Keys ──
 
 export const contentKeys = {
   byChannel: (channelId: number) => ['content', 'channel', channelId] as const,
+  byChannelPaginated: (channelId: number, filters: ChannelContentFilters) =>
+    ['content', 'channel', channelId, 'paginated', filters] as const,
 };
 
 // ── Queries ──
 
-/** Fetch content items for a specific channel. */
+/** Fetch content items for a specific channel (legacy — all items). */
 export function useChannelContent(channelId: number) {
   return useQuery({
     queryKey: contentKeys.byChannel(channelId),
@@ -35,6 +49,30 @@ export function useChannelContent(channelId: number) {
   });
 }
 
+/** Fetch paginated content items for a channel with search/filter/sort. */
+export function useChannelContentPaginated(channelId: number, filters: ChannelContentFilters) {
+  return useQuery({
+    queryKey: contentKeys.byChannelPaginated(channelId, filters),
+    queryFn: async () => {
+      const params = new URLSearchParams();
+      if (filters.page) params.set('page', String(filters.page));
+      if (filters.pageSize) params.set('pageSize', String(filters.pageSize));
+      if (filters.search) params.set('search', filters.search);
+      if (filters.status) params.set('status', filters.status);
+      if (filters.contentType) params.set('contentType', filters.contentType);
+      if (filters.sortBy) params.set('sortBy', filters.sortBy);
+      if (filters.sortDirection) params.set('sortDirection', filters.sortDirection);
+
+      const response = await apiClient.get<PaginatedResponse<ContentItem>>(
+        `/api/v1/channel/${channelId}/content?${params.toString()}`,
+      );
+      return response;
+    },
+    enabled: channelId > 0,
+    placeholderData: keepPreviousData,
+  });
+}
+
 // ── Mutations ──
 
 /** Enqueue a content item for download. Returns 202 with queue item. */

src/frontend/src/components/ContentCard.tsx

@@ -0,0 +1,273 @@
+import { Bookmark, BookmarkPlus, Download, ExternalLink, Film, Music } from 'lucide-react';
+import { StatusBadge } from './StatusBadge';
+import { DownloadProgressBar } from './DownloadProgressBar';
+import { useDownloadProgress } from '../contexts/DownloadProgressContext';
+import type { ContentItem } from '@shared/types/index';
+
+// ── Helpers ──
+
+function formatDuration(seconds: number | null): string {
+  if (seconds == null) return '';
+  const h = Math.floor(seconds / 3600);
+  const m = Math.floor((seconds % 3600) / 60);
+  const s = seconds % 60;
+  if (h > 0) return `${h}:${String(m).padStart(2, '0')}:${String(s).padStart(2, '0')}`;
+  return `${m}:${String(s).padStart(2, '0')}`;
+}
+
+function formatRelativeTime(isoString: string | null): string {
+  if (!isoString) return '';
+  const delta = Date.now() - Date.parse(isoString);
+  if (delta < 0) return 'just now';
+  const seconds = Math.floor(delta / 1000);
+  if (seconds < 60) return 'just now';
+  const minutes = Math.floor(seconds / 60);
+  if (minutes < 60) return `${minutes}m ago`;
+  const hours = Math.floor(minutes / 60);
+  if (hours < 24) return `${hours}h ago`;
+  const days = Math.floor(hours / 24);
+  if (days < 30) return `${days}d ago`;
+  const months = Math.floor(days / 30);
+  if (months < 12) return `${months}mo ago`;
+  return `${Math.floor(months / 12)}y ago`;
+}
+
+// ── Component ──
+
+interface ContentCardProps {
+  item: ContentItem;
+  selected: boolean;
+  onSelect: (id: number) => void;
+  onToggleMonitored: (id: number, monitored: boolean) => void;
+  onDownload: (id: number) => void;
+}
+
+export function ContentCard({ item, selected, onSelect, onToggleMonitored, onDownload }: ContentCardProps) {
+  const progress = useDownloadProgress(item.id);
+  const duration = formatDuration(item.duration);
+  const published = formatRelativeTime(item.publishedAt);
+
+  return (
+    <div
+      style={{
+        position: 'relative',
+        backgroundColor: selected ? 'var(--bg-selected)' : 'var(--bg-card-solid)',
+        border: selected ? '1px solid var(--accent)' : '1px solid var(--border)',
+        borderRadius: 'var(--radius-xl)',
+        overflow: 'hidden',
+        transition: 'all var(--transition-fast)',
+        cursor: 'pointer',
+      }}
+      onClick={() => onSelect(item.id)}
+      onMouseEnter={(e) => {
+        if (!selected) e.currentTarget.style.borderColor = 'var(--border-light)';
+      }}
+      onMouseLeave={(e) => {
+        if (!selected) e.currentTarget.style.borderColor = 'var(--border)';
+      }}
+    >
+      {/* Thumbnail */}
+      <div style={{ position: 'relative', aspectRatio: '16/9', backgroundColor: 'var(--bg-input)' }}>
+        {item.thumbnailUrl ? (
+          <img
+            src={item.thumbnailUrl}
+            alt=""
+            loading="lazy"
+            style={{
+              width: '100%',
+              height: '100%',
+              objectFit: 'cover',
+              display: 'block',
+            }}
+          />
+        ) : (
+          <div
+            style={{
+              width: '100%',
+              height: '100%',
+              display: 'flex',
+              alignItems: 'center',
+              justifyContent: 'center',
+              color: 'var(--text-muted)',
+            }}
+          >
+            {item.contentType === 'audio' ? <Music size={32} /> : <Film size={32} />}
+          </div>
+        )}
+
+        {/* Duration badge */}
+        {duration && (
+          <span
+            style={{
+              position: 'absolute',
+              bottom: 6,
+              right: 6,
+              padding: '1px 6px',
+              borderRadius: 'var(--radius-sm)',
+              backgroundColor: 'rgba(0, 0, 0, 0.75)',
+              color: '#fff',
+              fontSize: 'var(--font-size-xs)',
+              fontWeight: 500,
+              fontVariantNumeric: 'tabular-nums',
+            }}
+          >
+            {duration}
+          </span>
+        )}
+
+        {/* Selection checkbox */}
+        <div
+          style={{
+            position: 'absolute',
+            top: 6,
+            left: 6,
+            opacity: selected ? 1 : 0,
+            transition: 'opacity var(--transition-fast)',
+          }}
+          className="card-checkbox"
+        >
+          <input
+            type="checkbox"
+            checked={selected}
+            onChange={(e) => {
+              e.stopPropagation();
+              onSelect(item.id);
+            }}
+            onClick={(e) => e.stopPropagation()}
+            aria-label={`Select ${item.title}`}
+            style={{
+              width: 18,
+              height: 18,
+              cursor: 'pointer',
+              accentColor: 'var(--accent)',
+            }}
+          />
+        </div>
+
+        {/* Download progress overlay */}
+        {item.status === 'downloading' && progress && (
+          <div style={{ position: 'absolute', bottom: 0, left: 0, right: 0 }}>
+            <DownloadProgressBar progress={progress} />
+          </div>
+        )}
+      </div>
+
+      {/* Card body */}
+      <div style={{ padding: 'var(--space-3)' }}>
+        {/* Title */}
+        <a
+          href={item.url}
+          target="_blank"
+          rel="noopener noreferrer"
+          onClick={(e) => e.stopPropagation()}
+          style={{
+            display: 'block',
+            fontWeight: 500,
+            fontSize: 'var(--font-size-sm)',
+            color: 'var(--text-primary)',
+            lineHeight: 1.4,
+            overflow: 'hidden',
+            textOverflow: 'ellipsis',
+            whiteSpace: 'nowrap',
+            textDecoration: 'none',
+          }}
+          title={item.title}
+        >
+          {item.title}
+        </a>
+
+        {/* Meta row */}
+        <div
+          style={{
+            display: 'flex',
+            alignItems: 'center',
+            justifyContent: 'space-between',
+            marginTop: 'var(--space-2)',
+            gap: 'var(--space-2)',
+          }}
+        >
+          <StatusBadge status={item.status} />
+          <span style={{ color: 'var(--text-muted)', fontSize: 'var(--font-size-xs)' }}>
+            {published}
+          </span>
+        </div>
+
+        {/* Action row */}
+        <div
+          style={{
+            display: 'flex',
+            alignItems: 'center',
+            gap: 'var(--space-1)',
+            marginTop: 'var(--space-2)',
+            justifyContent: 'flex-end',
+          }}
+        >
+          <button
+            onClick={(e) => {
+              e.stopPropagation();
+              onToggleMonitored(item.id, !item.monitored);
+            }}
+            title={item.monitored ? 'Unmonitor' : 'Monitor'}
+            aria-label={item.monitored ? `Unmonitor ${item.title}` : `Monitor ${item.title}`}
+            style={{
+              display: 'inline-flex',
+              alignItems: 'center',
+              justifyContent: 'center',
+              width: 28,
+              height: 28,
+              borderRadius: 'var(--radius-sm)',
+              color: item.monitored ? 'var(--accent)' : 'var(--text-muted)',
+              transition: 'color var(--transition-fast)',
+            }}
+          >
+            {item.monitored ? <Bookmark size={14} fill="currentColor" /> : <BookmarkPlus size={14} />}
+          </button>
+
+          {item.status !== 'downloaded' && item.status !== 'downloading' && item.status !== 'queued' && (
+            <button
+              onClick={(e) => {
+                e.stopPropagation();
+                onDownload(item.id);
+              }}
+              title="Download"
+              aria-label={`Download ${item.title}`}
+              style={{
+                display: 'inline-flex',
+                alignItems: 'center',
+                justifyContent: 'center',
+                width: 28,
+                height: 28,
+                borderRadius: 'var(--radius-sm)',
+                color: 'var(--text-muted)',
+                transition: 'color var(--transition-fast)',
+              }}
+            >
+              <Download size={14} />
+            </button>
+          )}
+
+          <a
+            href={item.url}
+            target="_blank"
+            rel="noopener noreferrer"
+            onClick={(e) => e.stopPropagation()}
+            title="Open on YouTube"
+            aria-label={`Open ${item.title} on YouTube`}
+            style={{
+              display: 'inline-flex',
+              alignItems: 'center',
+              justifyContent: 'center',
+              width: 28,
+              height: 28,
+              borderRadius: 'var(--radius-sm)',
+              color: 'var(--text-muted)',
+              transition: 'color var(--transition-fast)',
+            }}
+          >
+            <ExternalLink size={14} />
+          </a>
+        </div>
+      </div>
+    </div>
+  );
+}

src/frontend/src/components/Modal.tsx

@@ -112,6 +112,7 @@ export function Modal({ title, open, onClose, children, width = 480 }: ModalProp
           border: '1px solid var(--border-light)',
           borderRadius: 'var(--radius-lg)',
           boxShadow: 'var(--shadow-lg)',
+          animation: 'modal-enter 200ms ease-out',
         }}
       >
         {/* Header */}
@@ -137,24 +138,7 @@ export function Modal({ title, open, onClose, children, width = 480 }: ModalProp
           <button
             onClick={onClose}
             aria-label="Close"
-            style={{
-              display: 'flex',
-              alignItems: 'center',
-              justifyContent: 'center',
-              width: 28,
-              height: 28,
-              borderRadius: 'var(--radius-sm)',
-              color: 'var(--text-muted)',
-              transition: 'color var(--transition-fast), background-color var(--transition-fast)',
-            }}
-            onMouseEnter={(e) => {
-              e.currentTarget.style.color = 'var(--text-primary)';
-              e.currentTarget.style.backgroundColor = 'var(--bg-hover)';
-            }}
-            onMouseLeave={(e) => {
-              e.currentTarget.style.color = 'var(--text-muted)';
-              e.currentTarget.style.backgroundColor = 'transparent';
-            }}
+            className="btn-icon"
           >
             <X size={16} />
           </button>

src/frontend/src/components/Sidebar.tsx

@@ -78,26 +78,11 @@ export function Sidebar() {
         </NavLink>
         <button
           onClick={() => setCollapsed(!collapsed)}
+          className="btn-icon"
           style={{
-            display: 'flex',
-            alignItems: 'center',
-            justifyContent: 'center',
-            padding: 'var(--space-1)',
-            borderRadius: 'var(--radius-md)',
-            color: 'var(--text-muted)',
-            cursor: 'pointer',
-            transition: 'color var(--transition-fast), background-color var(--transition-fast)',
             marginLeft: 'auto',
             flexShrink: 0,
           }}
-          onMouseEnter={(e) => {
-            e.currentTarget.style.color = 'var(--text-secondary)';
-            e.currentTarget.style.backgroundColor = 'var(--bg-hover)';
-          }}
-          onMouseLeave={(e) => {
-            e.currentTarget.style.color = 'var(--text-muted)';
-            e.currentTarget.style.backgroundColor = 'transparent';
-          }}
           aria-label={collapsed ? 'Expand sidebar' : 'Collapse sidebar'}
         >
           {collapsed ? <ChevronRight size={16} /> : <ChevronLeft size={16} />}

src/frontend/src/components/Skeleton.tsx

@@ -0,0 +1,259 @@
+/**
+ * Skeleton loading placeholder components.
+ * Uses the .skeleton CSS class for shimmer animation.
+ */
+
+interface SkeletonProps {
+  width?: string | number;
+  height?: string | number;
+  borderRadius?: string;
+  style?: React.CSSProperties;
+}
+
+/** Generic skeleton block. */
+export function Skeleton({ width = '100%', height = 16, borderRadius, style }: SkeletonProps) {
+  return (
+    <div
+      className="skeleton"
+      style={{
+        width,
+        height,
+        borderRadius: borderRadius ?? 'var(--radius-md)',
+        ...style,
+      }}
+    />
+  );
+}
+
+/** Skeleton for a table row. */
+export function SkeletonRow({ columns = 6 }: { columns?: number }) {
+  return (
+    <tr>
+      {Array.from({ length: columns }).map((_, i) => (
+        <td key={i}>
+          <Skeleton
+            width={i === 0 ? 32 : i === 1 ? '70%' : '50%'}
+            height={i === 0 ? 32 : 14}
+            borderRadius={i === 0 ? '50%' : undefined}
+          />
+        </td>
+      ))}
+    </tr>
+  );
+}
+
+/** Skeleton for the full content table. */
+export function SkeletonTable({ rows = 8, columns = 6 }: { rows?: number; columns?: number }) {
+  return (
+    <div style={{ padding: 'var(--space-4)' }}>
+      <table style={{ width: '100%' }}>
+        <tbody>
+          {Array.from({ length: rows }).map((_, i) => (
+            <SkeletonRow key={i} columns={columns} />
+          ))}
+        </tbody>
+      </table>
+    </div>
+  );
+}
+
+/** Skeleton for the channel detail header. */
+export function SkeletonChannelHeader() {
+  return (
+    <div
+      style={{
+        display: 'flex',
+        gap: 'var(--space-5)',
+        padding: 'var(--space-5)',
+        backgroundColor: 'var(--bg-card)',
+        borderRadius: 'var(--radius-xl)',
+        border: '1px solid var(--border)',
+        marginBottom: 'var(--space-6)',
+      }}
+    >
+      <Skeleton width={80} height={80} borderRadius="50%" />
+      <div style={{ flex: 1, display: 'flex', flexDirection: 'column', gap: 'var(--space-3)' }}>
+        <Skeleton width={200} height={24} />
+        <Skeleton width={300} height={14} />
+        <div style={{ display: 'flex', gap: 'var(--space-3)', marginTop: 'var(--space-2)' }}>
+          <Skeleton width={120} height={32} borderRadius="var(--radius-md)" />
+          <Skeleton width={120} height={32} borderRadius="var(--radius-md)" />
+          <Skeleton width={100} height={32} borderRadius="var(--radius-md)" />
+        </div>
+      </div>
+    </div>
+  );
+}
+
+/** Skeleton for the queue list page. */
+export function SkeletonQueueList({ rows = 6 }: { rows?: number }) {
+  return (
+    <div style={{ padding: 'var(--space-4)' }}>
+      {/* Tab row placeholder */}
+      <div style={{ display: 'flex', gap: '2px', marginBottom: 'var(--space-4)' }}>
+        {Array.from({ length: 5 }).map((_, i) => (
+          <Skeleton key={i} width={80} height={32} borderRadius="var(--radius-md) var(--radius-md) 0 0" />
+        ))}
+      </div>
+      <SkeletonTable rows={rows} columns={7} />
+    </div>
+  );
+}
+
+/** Skeleton for the library page. */
+export function SkeletonLibrary({ rows = 8 }: { rows?: number }) {
+  return (
+    <div style={{ padding: 'var(--space-4)' }}>
+      {/* Search + filters placeholder */}
+      <div style={{ display: 'flex', gap: 'var(--space-4)', marginBottom: 'var(--space-4)' }}>
+        <Skeleton width={240} height={36} borderRadius="var(--radius-md)" />
+        <Skeleton width={120} height={36} borderRadius="var(--radius-md)" />
+        <Skeleton width={100} height={36} borderRadius="var(--radius-md)" />
+        <Skeleton width={130} height={36} borderRadius="var(--radius-md)" />
+      </div>
+      <SkeletonTable rows={rows} columns={9} />
+    </div>
+  );
+}
+
+/** Skeleton for the activity page. */
+export function SkeletonActivityList({ rows = 6 }: { rows?: number }) {
+  return (
+    <div style={{ padding: 'var(--space-4)' }}>
+      {/* Tab row placeholder */}
+      <div style={{ display: 'flex', gap: '2px', marginBottom: 'var(--space-4)' }}>
+        <Skeleton width={80} height={32} borderRadius="var(--radius-md) var(--radius-md) 0 0" />
+        <Skeleton width={80} height={32} borderRadius="var(--radius-md) var(--radius-md) 0 0" />
+      </div>
+      <SkeletonTable rows={rows} columns={5} />
+    </div>
+  );
+}
+
+/** Skeleton for the system page. */
+export function SkeletonSystem() {
+  return (
+    <div style={{ padding: 'var(--space-4)' }}>
+      <Skeleton width={120} height={24} style={{ marginBottom: 'var(--space-6)' }} />
+      {/* Health card placeholder */}
+      <div
+        style={{
+          backgroundColor: 'var(--bg-card)',
+          borderRadius: 'var(--radius-lg)',
+          border: '1px solid var(--border)',
+          padding: 'var(--space-4)',
+          marginBottom: 'var(--space-6)',
+        }}
+      >
+        {Array.from({ length: 3 }).map((_, i) => (
+          <div key={i} style={{ display: 'flex', alignItems: 'center', gap: 'var(--space-3)', marginBottom: i < 2 ? 'var(--space-3)' : 0 }}>
+            <Skeleton width={14} height={14} borderRadius="50%" />
+            <Skeleton width={100} height={14} />
+            <Skeleton width={60} height={20} borderRadius="var(--radius-md)" />
+          </div>
+        ))}
+      </div>
+      {/* Status table placeholder */}
+      <Skeleton width={100} height={24} style={{ marginBottom: 'var(--space-4)' }} />
+      <div
+        style={{
+          backgroundColor: 'var(--bg-card)',
+          borderRadius: 'var(--radius-lg)',
+          border: '1px solid var(--border)',
+          padding: 'var(--space-4)',
+        }}
+      >
+        {Array.from({ length: 5 }).map((_, i) => (
+          <div key={i} style={{ display: 'flex', gap: 'var(--space-4)', marginBottom: i < 4 ? 'var(--space-3)' : 0 }}>
+            <Skeleton width={140} height={14} />
+            <Skeleton width={200} height={14} />
+          </div>
+        ))}
+      </div>
+    </div>
+  );
+}
+
+/** Skeleton for the settings page. */
+export function SkeletonSettings() {
+  return (
+    <div>
+      <Skeleton width={120} height={28} style={{ marginBottom: 'var(--space-6)' }} />
+
+      {/* General section */}
+      <div style={{ marginBottom: 'var(--space-8)' }}>
+        <div style={{ display: 'flex', alignItems: 'center', gap: 'var(--space-2)', marginBottom: 'var(--space-4)' }}>
+          <Skeleton width={20} height={20} borderRadius="var(--radius-sm)" />
+          <Skeleton width={80} height={20} />
+        </div>
+        <div
+          style={{
+            backgroundColor: 'var(--bg-card)',
+            borderRadius: 'var(--radius-xl)',
+            border: '1px solid var(--border)',
+            padding: 'var(--space-4)',
+          }}
+        >
+          {Array.from({ length: 4 }).map((_, i) => (
+            <div key={i} style={{ display: 'flex', gap: 'var(--space-4)', marginBottom: i < 3 ? 'var(--space-4)' : 0, alignItems: 'center' }}>
+              <Skeleton width={140} height={14} />
+              <Skeleton width={250} height={32} borderRadius="var(--radius-md)" />
+            </div>
+          ))}
+        </div>
+      </div>
+
+      {/* Platform Settings section */}
+      <div style={{ marginBottom: 'var(--space-8)' }}>
+        <div style={{ display: 'flex', alignItems: 'center', gap: 'var(--space-2)', marginBottom: 'var(--space-4)' }}>
+          <Skeleton width={20} height={20} borderRadius="var(--radius-sm)" />
+          <Skeleton width={140} height={20} />
+        </div>
+        <SkeletonTable rows={2} columns={6} />
+      </div>
+
+      {/* Format Profiles section */}
+      <div style={{ marginBottom: 'var(--space-8)' }}>
+        <div style={{ display: 'flex', justifyContent: 'space-between', marginBottom: 'var(--space-4)' }}>
+          <Skeleton width={130} height={20} />
+          <Skeleton width={110} height={32} borderRadius="var(--radius-md)" />
+        </div>
+        <SkeletonTable rows={3} columns={6} />
+      </div>
+
+      {/* Notifications section */}
+      <div style={{ marginBottom: 'var(--space-8)' }}>
+        <div style={{ display: 'flex', justifyContent: 'space-between', marginBottom: 'var(--space-4)' }}>
+          <Skeleton width={120} height={20} />
+          <Skeleton width={110} height={32} borderRadius="var(--radius-md)" />
+        </div>
+        <SkeletonTable rows={2} columns={5} />
+      </div>
+    </div>
+  );
+}
+
+/** Skeleton for the channels list page. */
+export function SkeletonChannelsList({ rows = 4 }: { rows?: number }) {
+  return (
+    <div>
+      <div style={{ display: 'flex', justifyContent: 'space-between', marginBottom: 'var(--space-6)' }}>
+        <Skeleton width={120} height={28} />
+        <div style={{ display: 'flex', gap: 'var(--space-3)' }}>
+          <Skeleton width={110} height={34} borderRadius="var(--radius-md)" />
+          <Skeleton width={140} height={34} borderRadius="var(--radius-md)" />
+        </div>
+      </div>
+      <div
+        style={{
+          backgroundColor: 'var(--bg-card)',
+          borderRadius: 'var(--radius-xl)',
+          border: '1px solid var(--border)',
+          overflow: 'hidden',
+        }}
+      >
+        <SkeletonTable rows={rows} columns={7} />
+      </div>
+    </div>
+  );
+}

src/frontend/src/components/Toast.tsx

@@ -0,0 +1,92 @@
+import { createContext, useContext, useState, useCallback, useRef } from 'react';
+import type { ReactNode } from 'react';
+
+// ── Types ──
+
+type ToastVariant = 'success' | 'error' | 'info';
+
+interface ToastEntry {
+  id: number;
+  message: string;
+  variant: ToastVariant;
+}
+
+interface ToastContextValue {
+  toast: (message: string, variant?: ToastVariant) => void;
+}
+
+// ── Context ──
+
+const ToastContext = createContext<ToastContextValue | null>(null);
+
+export function useToast(): ToastContextValue {
+  const ctx = useContext(ToastContext);
+  if (!ctx) throw new Error('useToast must be used inside <ToastProvider>');
+  return ctx;
+}
+
+// ── Provider ──
+
+const TOAST_DURATION = 5000;
+
+export function ToastProvider({ children }: { children: ReactNode }) {
+  const [toasts, setToasts] = useState<ToastEntry[]>([]);
+  const nextId = useRef(0);
+
+  const toast = useCallback((message: string, variant: ToastVariant = 'info') => {
+    const id = ++nextId.current;
+    setToasts((prev) => [...prev, { id, message, variant }]);
+    setTimeout(() => {
+      setToasts((prev) => prev.filter((t) => t.id !== id));
+    }, TOAST_DURATION);
+  }, []);
+
+  const dismiss = useCallback((id: number) => {
+    setToasts((prev) => prev.filter((t) => t.id !== id));
+  }, []);
+
+  return (
+    <ToastContext.Provider value={{ toast }}>
+      {children}
+      {/* Toast container */}
+      {toasts.length > 0 && (
+        <div
+          aria-live="polite"
+          style={{
+            position: 'fixed',
+            bottom: 'var(--space-6)',
+            right: 'var(--space-6)',
+            zIndex: 1100,
+            display: 'flex',
+            flexDirection: 'column',
+            gap: 'var(--space-2)',
+            pointerEvents: 'none',
+          }}
+        >
+          {toasts.map((t) => (
+            <div
+              key={t.id}
+              role={t.variant === 'error' ? 'alert' : 'status'}
+              className="toast-enter"
+              style={{
+                padding: 'var(--space-3) var(--space-4)',
+                borderRadius: 'var(--radius-md)',
+                fontSize: 'var(--font-size-sm)',
+                boxShadow: 'var(--shadow-lg)',
+                pointerEvents: 'auto',
+                cursor: 'pointer',
+                backgroundColor: t.variant === 'error' ? 'var(--danger-bg)' : t.variant === 'success' ? 'var(--success-bg)' : 'var(--bg-card)',
+                border: `1px solid ${t.variant === 'error' ? 'var(--danger)' : t.variant === 'success' ? 'var(--success)' : 'var(--border)'}`,
+                color: t.variant === 'error' ? 'var(--danger)' : t.variant === 'success' ? 'var(--success)' : 'var(--text-primary)',
+                animation: 'toast-slide-in 0.25s ease-out',
+              }}
+              onClick={() => dismiss(t.id)}
+            >
+              {t.message}
+            </div>
+          ))}
+        </div>
+      )}
+    </ToastContext.Provider>
+  );
+}

src/frontend/src/pages/Activity.tsx

@@ -1,9 +1,10 @@
 import { useState, useMemo, useCallback } from 'react';
-import { ActivityIcon, Clock, Loader, RefreshCw } from 'lucide-react';
+import { ActivityIcon, Clock, RefreshCw } from 'lucide-react';
 import { Table, type Column } from '../components/Table';
 import { StatusBadge } from '../components/StatusBadge';
 import { Pagination } from '../components/Pagination';
 import { FilterBar, type FilterDefinition } from '../components/FilterBar';
+import { SkeletonActivityList } from '../components/Skeleton';
 import { useHistory, useActivity, type HistoryFilters } from '../api/hooks/useActivity';
 import type { DownloadHistoryRecord } from '@shared/types/index';
 
@@ -278,18 +279,7 @@ export function ActivityPage() {
               <button
                 onClick={() => refetchHistory()}
                 aria-label="Retry"
-                style={{
-                  display: 'inline-flex',
-                  alignItems: 'center',
-                  gap: 'var(--space-2)',
-                  padding: 'var(--space-2) var(--space-3)',
-                  borderRadius: 'var(--radius-md)',
-                  backgroundColor: 'var(--danger)',
-                  color: '#fff',
-                  fontSize: 'var(--font-size-sm)',
-                  fontWeight: 600,
-                  flexShrink: 0,
-                }}
+                className="btn btn-danger"
               >
                 <RefreshCw size={14} />
                 Retry
@@ -298,12 +288,7 @@ export function ActivityPage() {
           )}
 
           {/* Loading */}
-          {historyLoading && (
-            <div style={{ display: 'flex', alignItems: 'center', justifyContent: 'center', padding: 'var(--space-8)', color: 'var(--text-muted)' }}>
-              <Loader size={20} style={{ animation: 'spin 1s linear infinite', marginRight: 'var(--space-3)' }} />
-              Loading history…
-            </div>
-          )}
+          {historyLoading && <SkeletonActivityList />}
 
           {/* Table */}
           {!historyLoading && (
@@ -351,18 +336,7 @@ export function ActivityPage() {
               <button
                 onClick={() => refetchRecent()}
                 aria-label="Retry"
-                style={{
-                  display: 'inline-flex',
-                  alignItems: 'center',
-                  gap: 'var(--space-2)',
-                  padding: 'var(--space-2) var(--space-3)',
-                  borderRadius: 'var(--radius-md)',
-                  backgroundColor: 'var(--danger)',
-                  color: '#fff',
-                  fontSize: 'var(--font-size-sm)',
-                  fontWeight: 600,
-                  flexShrink: 0,
-                }}
+                className="btn btn-danger"
               >
                 <RefreshCw size={14} />
                 Retry
@@ -371,12 +345,7 @@ export function ActivityPage() {
           )}
 
           {/* Loading */}
-          {recentLoading && (
-            <div style={{ display: 'flex', alignItems: 'center', justifyContent: 'center', padding: 'var(--space-8)', color: 'var(--text-muted)' }}>
-              <Loader size={20} style={{ animation: 'spin 1s linear infinite', marginRight: 'var(--space-3)' }} />
-              Loading recent activity…
-            </div>
-          )}
+          {recentLoading && <SkeletonActivityList />}
 
           {/* Activity feed */}
           {!recentLoading && (

src/frontend/src/pages/Channels.tsx

@@ -1,4 +1,4 @@
-import { useState, useEffect, useMemo, useCallback } from 'react';
+import { useState, useMemo, useCallback } from 'react';
 import { useNavigate } from 'react-router-dom';
 import { Plus, Loader, RefreshCw, Search } from 'lucide-react';
 import { useChannels, useScanAllChannels } from '../api/hooks/useChannels';
@@ -8,6 +8,8 @@ import { PlatformBadge } from '../components/PlatformBadge';
 import { StatusBadge } from '../components/StatusBadge';
 import { ProgressBar } from '../components/ProgressBar';
 import { AddChannelModal } from '../components/AddChannelModal';
+import { SkeletonChannelsList } from '../components/Skeleton';
+import { useToast } from '../components/Toast';
 import type { ChannelWithCounts } from '@shared/types/api';
 
 // ── Helpers ──
@@ -30,19 +32,12 @@ function formatRelativeTime(dateStr: string | null): string {
 export function Channels() {
   const navigate = useNavigate();
   const [showAddModal, setShowAddModal] = useState(false);
-  const [scanResult, setScanResult] = useState<{ message: string; isError: boolean } | null>(null);
+  const { toast } = useToast();
 
   const { data: channels, isLoading, error, refetch } = useChannels();
   const scanAll = useScanAllChannels();
   const collectAll = useCollectAllMonitored();
 
-  // Auto-dismiss scan result toast after 5 seconds
-  useEffect(() => {
-    if (!scanResult) return;
-    const timer = setTimeout(() => setScanResult(null), 5000);
-    return () => clearTimeout(timer);
-  }, [scanResult]);
-
   const handleScanAll = useCallback(() => {
     scanAll.mutate(undefined, {
       onSuccess: (result) => {
@@ -50,16 +45,13 @@ export function Channels() {
         if (result.summary.errors > 0) {
           msg += ` (${result.summary.errors} error${result.summary.errors === 1 ? '' : 's'})`;
         }
-        setScanResult({ message: msg, isError: result.summary.errors > 0 });
+        toast(msg, result.summary.errors > 0 ? 'error' : 'success');
       },
       onError: (err) => {
-        setScanResult({
-          message: err instanceof Error ? err.message : 'Scan failed',
-          isError: true,
-        });
+        toast(err instanceof Error ? err.message : 'Scan failed', 'error');
       },
     });
-  }, [scanAll]);
+  }, [scanAll, toast]);
 
   const handleCollectAll = useCallback(() => {
     collectAll.mutate(undefined, {
@@ -69,16 +61,13 @@ export function Channels() {
         if (result.skipped > 0) parts.push(`${result.skipped} skipped`);
         if (result.errors > 0) parts.push(`${result.errors} error${result.errors === 1 ? '' : 's'}`);
         const msg = parts.length > 0 ? parts.join(', ') : 'No items to collect';
-        setScanResult({ message: msg, isError: result.errors > 0 });
+        toast(msg, result.errors > 0 ? 'error' : 'success');
       },
       onError: (err) => {
-        setScanResult({
-          message: err instanceof Error ? err.message : 'Collect failed',
-          isError: true,
-        });
+        toast(err instanceof Error ? err.message : 'Collect failed', 'error');
       },
     });
-  }, [collectAll]);
+  }, [collectAll, toast]);
 
   const handleRowClick = useCallback(
     (channel: ChannelWithCounts) => {
@@ -184,12 +173,7 @@ export function Channels() {
   );
 
   if (isLoading) {
-    return (
-      <div style={{ display: 'flex', alignItems: 'center', justifyContent: 'center', padding: 'var(--space-12)', color: 'var(--text-muted)' }}>
-        <Loader size={20} style={{ animation: 'spin 1s linear infinite', marginRight: 'var(--space-3)' }} />
-        Loading channels...
-      </div>
-    );
+    return <SkeletonChannelsList />;
   }
 
   if (error) {
@@ -213,18 +197,7 @@ export function Channels() {
           <button
             onClick={() => refetch()}
             aria-label="Retry"
-            style={{
-              display: 'inline-flex',
-              alignItems: 'center',
-              gap: 'var(--space-2)',
-              padding: 'var(--space-2) var(--space-3)',
-              borderRadius: 'var(--radius-md)',
-              backgroundColor: 'var(--danger)',
-              color: '#fff',
-              fontSize: 'var(--font-size-sm)',
-              fontWeight: 600,
-              flexShrink: 0,
-            }}
+            className="btn btn-danger"
           >
             <RefreshCw size={14} />
             Retry
@@ -260,20 +233,8 @@ export function Channels() {
             onClick={handleScanAll}
             disabled={scanAll.isPending}
             title="Refresh All"
-            style={{
-              display: 'inline-flex',
-              alignItems: 'center',
-              gap: 'var(--space-2)',
-              padding: 'var(--space-2) var(--space-4)',
-              borderRadius: 'var(--radius-md)',
-              backgroundColor: 'var(--bg-hover)',
-              color: 'var(--text-secondary)',
-              border: '1px solid var(--border)',
-              fontSize: 'var(--font-size-sm)',
-              fontWeight: 600,
-              transition: 'all var(--transition-fast)',
-              opacity: scanAll.isPending ? 0.6 : 1,
-            }}
+            className="btn btn-ghost"
+            style={{ opacity: scanAll.isPending ? 0.6 : 1 }}
           >
             {scanAll.isPending ? (
               <Loader size={16} style={{ animation: 'spin 1s linear infinite' }} />
@@ -287,20 +248,8 @@ export function Channels() {
             onClick={handleCollectAll}
             disabled={collectAll.isPending}
             title="Collect All Monitored"
-            style={{
-              display: 'inline-flex',
-              alignItems: 'center',
-              gap: 'var(--space-2)',
-              padding: 'var(--space-2) var(--space-4)',
-              borderRadius: 'var(--radius-md)',
-              backgroundColor: 'var(--bg-hover)',
-              color: 'var(--text-secondary)',
-              border: '1px solid var(--border)',
-              fontSize: 'var(--font-size-sm)',
-              fontWeight: 600,
-              transition: 'all var(--transition-fast)',
-              opacity: collectAll.isPending ? 0.6 : 1,
-            }}
+            className="btn btn-ghost"
+            style={{ opacity: collectAll.isPending ? 0.6 : 1 }}
           >
             {collectAll.isPending ? (
               <Loader size={16} style={{ animation: 'spin 1s linear infinite' }} />
@@ -313,21 +262,8 @@ export function Channels() {
           <button
             onClick={() => setShowAddModal(true)}
             disabled={scanAll.isPending}
-            style={{
-              display: 'inline-flex',
-              alignItems: 'center',
-              gap: 'var(--space-2)',
-              padding: 'var(--space-2) var(--space-4)',
-              borderRadius: 'var(--radius-md)',
-              backgroundColor: 'var(--accent)',
-              color: 'var(--text-inverse)',
-              fontSize: 'var(--font-size-sm)',
-              fontWeight: 600,
-              transition: 'background-color var(--transition-fast)',
-              opacity: scanAll.isPending ? 0.6 : 1,
-            }}
-            onMouseEnter={(e) => { if (!scanAll.isPending) e.currentTarget.style.backgroundColor = 'var(--accent-hover)'; }}
-            onMouseLeave={(e) => { if (!scanAll.isPending) e.currentTarget.style.backgroundColor = 'var(--accent)'; }}
+            className="btn btn-primary"
+            style={{ opacity: scanAll.isPending ? 0.6 : 1 }}
           >
             <Plus size={16} />
             Add Channel
@@ -339,7 +275,7 @@ export function Channels() {
       <div
         style={{
           backgroundColor: 'var(--bg-card)',
-          borderRadius: 'var(--radius-lg)',
+          borderRadius: 'var(--radius-xl)',
           border: '1px solid var(--border)',
           overflow: 'hidden',
         }}
@@ -355,28 +291,6 @@ export function Channels() {
 
       {/* Add Channel modal */}
       <AddChannelModal open={showAddModal} onClose={() => setShowAddModal(false)} />
-
-      {/* Scan result toast */}
-      {scanResult && (
-        <div
-          role="status"
-          style={{
-            position: 'fixed',
-            bottom: 'var(--space-6)',
-            right: 'var(--space-6)',
-            padding: 'var(--space-3) var(--space-4)',
-            backgroundColor: scanResult.isError ? 'var(--danger-bg)' : 'var(--success-bg)',
-            border: `1px solid ${scanResult.isError ? 'var(--danger)' : 'var(--success)'}`,
-            borderRadius: 'var(--radius-md)',
-            color: scanResult.isError ? 'var(--danger)' : 'var(--success)',
-            fontSize: 'var(--font-size-sm)',
-            boxShadow: 'var(--shadow-lg)',
-            zIndex: 1001,
-          }}
-        >
-          {scanResult.message}
-        </div>
-      )}
     </div>
   );
 }

src/frontend/src/pages/Library.tsx

@@ -1,6 +1,6 @@
 import { useState, useCallback, useMemo } from 'react';
 import { useNavigate } from 'react-router-dom';
-import { Library as LibraryIcon, Loader, RefreshCw, Film, Music } from 'lucide-react';
+import { Library as LibraryIcon, RefreshCw, Film, Music } from 'lucide-react';
 import { Table, type Column } from '../components/Table';
 import { StatusBadge } from '../components/StatusBadge';
 import { QualityLabel } from '../components/QualityLabel';
@@ -8,6 +8,7 @@ import { PlatformBadge } from '../components/PlatformBadge';
 import { Pagination } from '../components/Pagination';
 import { SearchBar } from '../components/SearchBar';
 import { FilterBar, type FilterDefinition } from '../components/FilterBar';
+import { SkeletonLibrary } from '../components/Skeleton';
 import { useLibraryContent, type LibraryFilters } from '../api/hooks/useLibrary';
 import { useChannels } from '../api/hooks/useChannels';
 import type { ContentItem, ContentStatus, ContentType } from '@shared/types/index';
@@ -335,18 +336,7 @@ export function Library() {
           <button
             onClick={() => refetch()}
             aria-label="Retry"
-            style={{
-              display: 'inline-flex',
-              alignItems: 'center',
-              gap: 'var(--space-2)',
-              padding: 'var(--space-2) var(--space-3)',
-              borderRadius: 'var(--radius-md)',
-              backgroundColor: 'var(--danger)',
-              color: '#fff',
-              fontSize: 'var(--font-size-sm)',
-              fontWeight: 600,
-              flexShrink: 0,
-            }}
+            className="btn btn-danger"
           >
             <RefreshCw size={14} />
             Retry
@@ -355,12 +345,7 @@ export function Library() {
       )}
 
       {/* Loading state */}
-      {isLoading && (
-        <div style={{ display: 'flex', alignItems: 'center', justifyContent: 'center', padding: 'var(--space-8)', color: 'var(--text-muted)' }}>
-          <Loader size={20} style={{ animation: 'spin 1s linear infinite', marginRight: 'var(--space-3)' }} />
-          Loading library…
-        </div>
-      )}
+      {isLoading && <SkeletonLibrary />}
 
       {/* Content table */}
       {!isLoading && !error && (

src/frontend/src/pages/Queue.tsx

@@ -1,7 +1,8 @@
 import { useState, useMemo } from 'react';
-import { ListOrdered, RotateCcw, X, Loader, RefreshCw } from 'lucide-react';
+import { ListOrdered, RotateCcw, X, RefreshCw } from 'lucide-react';
 import { Table, type Column } from '../components/Table';
 import { StatusBadge } from '../components/StatusBadge';
+import { SkeletonQueueList } from '../components/Skeleton';
 import { useQueue, useRetryQueueItem, useCancelQueueItem } from '../api/hooks/useQueue';
 import type { QueueItem, QueueStatus } from '@shared/types/index';
 
@@ -163,20 +164,8 @@ export function Queue() {
                 disabled={retryMutation.isPending}
                 title="Retry"
                 aria-label="Retry failed item"
-                style={{
-                  display: 'inline-flex',
-                  alignItems: 'center',
-                  justifyContent: 'center',
-                  width: 28,
-                  height: 28,
-                  padding: 0,
-                  border: '1px solid var(--border)',
-                  borderRadius: 'var(--radius-md)',
-                  backgroundColor: 'var(--bg-input)',
-                  color: 'var(--warning)',
-                  cursor: retryMutation.isPending ? 'wait' : 'pointer',
-                  transition: 'background-color var(--transition-fast)',
-                }}
+                className="btn-icon"
+                style={{ color: 'var(--warning)' }}
               >
                 <RotateCcw size={14} />
               </button>
@@ -190,20 +179,8 @@ export function Queue() {
                 disabled={cancelMutation.isPending}
                 title="Cancel"
                 aria-label="Cancel pending item"
-                style={{
-                  display: 'inline-flex',
-                  alignItems: 'center',
-                  justifyContent: 'center',
-                  width: 28,
-                  height: 28,
-                  padding: 0,
-                  border: '1px solid var(--border)',
-                  borderRadius: 'var(--radius-md)',
-                  backgroundColor: 'var(--bg-input)',
-                  color: 'var(--danger)',
-                  cursor: cancelMutation.isPending ? 'wait' : 'pointer',
-                  transition: 'background-color var(--transition-fast)',
-                }}
+                className="btn-icon"
+                style={{ color: 'var(--danger)' }}
               >
                 <X size={14} />
               </button>
@@ -294,18 +271,7 @@ export function Queue() {
           <button
             onClick={() => refetch()}
             aria-label="Retry"
-            style={{
-              display: 'inline-flex',
-              alignItems: 'center',
-              gap: 'var(--space-2)',
-              padding: 'var(--space-2) var(--space-3)',
-              borderRadius: 'var(--radius-md)',
-              backgroundColor: 'var(--danger)',
-              color: '#fff',
-              fontSize: 'var(--font-size-sm)',
-              fontWeight: 600,
-              flexShrink: 0,
-            }}
+            className="btn btn-danger"
           >
             <RefreshCw size={14} />
             Retry
@@ -336,12 +302,7 @@ export function Queue() {
       )}
 
       {/* Loading state */}
-      {isLoading && (
-        <div style={{ display: 'flex', alignItems: 'center', justifyContent: 'center', padding: 'var(--space-8)', color: 'var(--text-muted)' }}>
-          <Loader size={20} style={{ animation: 'spin 1s linear infinite', marginRight: 'var(--space-3)' }} />
-          Loading queue…
-        </div>
-      )}
+      {isLoading && <SkeletonQueueList />}
 
       {/* Queue table */}
       {!isLoading && (

src/frontend/src/pages/Settings.tsx

@@ -25,6 +25,7 @@ import { Modal } from '../components/Modal';
 import { FormatProfileForm, type FormatProfileFormValues } from '../components/FormatProfileForm';
 import { PlatformSettingsForm, type PlatformSettingsFormValues } from '../components/PlatformSettingsForm';
 import { NotificationForm, type NotificationFormValues } from '../components/NotificationForm';
+import { SkeletonSettings } from '../components/Skeleton';
 import type { FormatProfile, PlatformSettings } from '@shared/types/index';
 
 // ── Badge styles ──
@@ -40,17 +41,6 @@ const badgeBase: React.CSSProperties = {
   letterSpacing: '0.04em',
 };
 
-const iconButtonBase: React.CSSProperties = {
-  display: 'inline-flex',
-  alignItems: 'center',
-  justifyContent: 'center',
-  width: 28,
-  height: 28,
-  borderRadius: 'var(--radius-sm)',
-  color: 'var(--text-muted)',
-  transition: 'color var(--transition-fast), background-color var(--transition-fast)',
-};
-
 // ── Component ──
 
 export function SettingsPage() {
@@ -297,15 +287,7 @@ export function SettingsPage() {
               onClick={(e) => { e.stopPropagation(); setEditingPlatform(row.platform); }}
               title={`Edit ${row.label} settings`}
               aria-label={`Edit ${row.label} settings`}
-              style={iconButtonBase}
-              onMouseEnter={(e) => {
-                e.currentTarget.style.color = 'var(--accent)';
-                e.currentTarget.style.backgroundColor = 'var(--accent-subtle)';
-              }}
-              onMouseLeave={(e) => {
-                e.currentTarget.style.color = 'var(--text-muted)';
-                e.currentTarget.style.backgroundColor = 'transparent';
-              }}
+              className="btn-icon btn-icon-edit"
             >
               <Pencil size={14} />
             </button>
@@ -479,15 +461,7 @@ export function SettingsPage() {
               onClick={(e) => { e.stopPropagation(); setEditingProfile(p); }}
               title="Edit profile"
               aria-label={`Edit ${p.name}`}
-              style={iconButtonBase}
-              onMouseEnter={(e) => {
-                e.currentTarget.style.color = 'var(--accent)';
-                e.currentTarget.style.backgroundColor = 'var(--accent-subtle)';
-              }}
-              onMouseLeave={(e) => {
-                e.currentTarget.style.color = 'var(--text-muted)';
-                e.currentTarget.style.backgroundColor = 'transparent';
-              }}
+              className="btn-icon btn-icon-edit"
             >
               <Pencil size={14} />
             </button>
@@ -496,15 +470,7 @@ export function SettingsPage() {
                 onClick={(e) => { e.stopPropagation(); setDeletingProfile(p); }}
                 title="Delete profile"
                 aria-label={`Delete ${p.name}`}
-                style={iconButtonBase}
-                onMouseEnter={(e) => {
-                  e.currentTarget.style.color = 'var(--danger)';
-                  e.currentTarget.style.backgroundColor = 'var(--danger-bg)';
-                }}
-                onMouseLeave={(e) => {
-                  e.currentTarget.style.color = 'var(--text-muted)';
-                  e.currentTarget.style.backgroundColor = 'transparent';
-                }}
+                className="btn-icon btn-icon-delete"
               >
                 <Trash2 size={14} />
               </button>
@@ -587,18 +553,8 @@ export function SettingsPage() {
                 title="Send test notification"
                 aria-label={`Test ${n.name}`}
                 disabled={result === 'loading'}
-                style={{
-                  ...iconButtonBase,
-                  opacity: result === 'loading' ? 0.5 : 1,
-                }}
-                onMouseEnter={(e) => {
-                  e.currentTarget.style.color = 'var(--success)';
-                  e.currentTarget.style.backgroundColor = 'var(--success-bg)';
-                }}
-                onMouseLeave={(e) => {
-                  e.currentTarget.style.color = 'var(--text-muted)';
-                  e.currentTarget.style.backgroundColor = 'transparent';
-                }}
+                className="btn-icon btn-icon-test"
+                style={{ opacity: result === 'loading' ? 0.5 : 1 }}
               >
                 {result === 'loading'
                   ? <Loader size={14} style={{ animation: 'spin 1s linear infinite' }} />
@@ -611,15 +567,7 @@ export function SettingsPage() {
                 onClick={(e) => { e.stopPropagation(); setEditingNotification(n); }}
                 title="Edit channel"
                 aria-label={`Edit ${n.name}`}
-                style={iconButtonBase}
-                onMouseEnter={(e) => {
-                  e.currentTarget.style.color = 'var(--accent)';
-                  e.currentTarget.style.backgroundColor = 'var(--accent-subtle)';
-                }}
-                onMouseLeave={(e) => {
-                  e.currentTarget.style.color = 'var(--text-muted)';
-                  e.currentTarget.style.backgroundColor = 'transparent';
-                }}
+                className="btn-icon btn-icon-edit"
               >
                 <Pencil size={14} />
               </button>
@@ -629,15 +577,7 @@ export function SettingsPage() {
                 onClick={(e) => { e.stopPropagation(); setDeletingNotification(n); }}
                 title="Delete channel"
                 aria-label={`Delete ${n.name}`}
-                style={iconButtonBase}
-                onMouseEnter={(e) => {
-                  e.currentTarget.style.color = 'var(--danger)';
-                  e.currentTarget.style.backgroundColor = 'var(--danger-bg)';
-                }}
-                onMouseLeave={(e) => {
-                  e.currentTarget.style.color = 'var(--text-muted)';
-                  e.currentTarget.style.backgroundColor = 'transparent';
-                }}
+                className="btn-icon btn-icon-delete"
               >
                 <Trash2 size={14} />
               </button>
@@ -652,12 +592,7 @@ export function SettingsPage() {
   // ── Loading state ──
 
   if (profilesLoading) {
-    return (
-      <div style={{ display: 'flex', alignItems: 'center', justifyContent: 'center', padding: 'var(--space-12)', color: 'var(--text-muted)' }}>
-        <Loader size={20} style={{ animation: 'spin 1s linear infinite', marginRight: 'var(--space-3)' }} />
-        Loading settings...
-      </div>
-    );
+    return <SkeletonSettings />;
   }
 
   // ── Error state ──
@@ -683,17 +618,7 @@ export function SettingsPage() {
           <button
             onClick={() => refetchProfiles()}
             aria-label="Retry"
-            style={{
-              display: 'inline-flex',
-              alignItems: 'center',
-              gap: 'var(--space-2)',
-              padding: 'var(--space-2) var(--space-3)',
-              borderRadius: 'var(--radius-md)',
-              backgroundColor: 'var(--danger)',
-              color: '#fff',
-              fontSize: 'var(--font-size-sm)',
-              fontWeight: 600,
-            }}
+            className="btn btn-danger"
           >
             <RefreshCw size={14} />
             Retry
@@ -725,7 +650,7 @@ export function SettingsPage() {
         <div
           style={{
             backgroundColor: 'var(--bg-card)',
-            borderRadius: 'var(--radius-lg)',
+            borderRadius: 'var(--radius-xl)',
             border: '1px solid var(--border)',
             overflow: 'hidden',
           }}
@@ -774,15 +699,7 @@ export function SettingsPage() {
                         onClick={() => setShowApiKey((v) => !v)}
                         title={showApiKey ? 'Hide API key' : 'Show API key'}
                         aria-label={showApiKey ? 'Hide API key' : 'Show API key'}
-                        style={iconButtonBase}
-                        onMouseEnter={(e) => {
-                          e.currentTarget.style.color = 'var(--accent)';
-                          e.currentTarget.style.backgroundColor = 'var(--accent-subtle)';
-                        }}
-                        onMouseLeave={(e) => {
-                          e.currentTarget.style.color = 'var(--text-muted)';
-                          e.currentTarget.style.backgroundColor = 'transparent';
-                        }}
+                        className="btn-icon btn-icon-edit"
                       >
                         {showApiKey ? <EyeOff size={14} /> : <Eye size={14} />}
                       </button>
@@ -792,22 +709,8 @@ export function SettingsPage() {
                         onClick={handleCopyApiKey}
                         title={copySuccess ? 'Copied!' : 'Copy to clipboard'}
                         aria-label="Copy API key to clipboard"
-                        style={{
-                          ...iconButtonBase,
-                          color: copySuccess ? 'var(--success)' : 'var(--text-muted)',
-                        }}
-                        onMouseEnter={(e) => {
-                          if (!copySuccess) {
-                            e.currentTarget.style.color = 'var(--accent)';
-                            e.currentTarget.style.backgroundColor = 'var(--accent-subtle)';
-                          }
-                        }}
-                        onMouseLeave={(e) => {
-                          if (!copySuccess) {
-                            e.currentTarget.style.color = 'var(--text-muted)';
-                            e.currentTarget.style.backgroundColor = 'transparent';
-                          }
-                        }}
+                        className="btn-icon btn-icon-edit"
+                        style={copySuccess ? { color: 'var(--success)' } : undefined}
                       >
                         {copySuccess ? <CheckCircle size={14} /> : <Copy size={14} />}
                       </button>
@@ -817,15 +720,7 @@ export function SettingsPage() {
                         onClick={() => setShowRegenerateConfirm(true)}
                         title="Regenerate API key"
                         aria-label="Regenerate API key"
-                        style={iconButtonBase}
-                        onMouseEnter={(e) => {
-                          e.currentTarget.style.color = 'var(--warning)';
-                          e.currentTarget.style.backgroundColor = 'var(--warning-bg)';
-                        }}
-                        onMouseLeave={(e) => {
-                          e.currentTarget.style.color = 'var(--text-muted)';
-                          e.currentTarget.style.backgroundColor = 'transparent';
-                        }}
+                        className="btn-icon btn-icon-warning"
                       >
                         <RotateCw size={14} />
                       </button>
@@ -911,17 +806,10 @@ export function SettingsPage() {
           <button
             onClick={handleSaveSettings}
             disabled={!settingsDirty || !settingsValid || updateAppSettingsMutation.isPending}
+            className={`btn ${settingsSaveFlash ? 'btn-primary' : 'btn-primary'}`}
             style={{
-              display: 'inline-flex',
-              alignItems: 'center',
-              gap: 'var(--space-2)',
-              padding: 'var(--space-2) var(--space-4)',
-              borderRadius: 'var(--radius-md)',
-              backgroundColor: settingsSaveFlash ? 'var(--success)' : 'var(--accent)',
-              color: 'var(--text-inverse)',
-              fontSize: 'var(--font-size-sm)',
-              fontWeight: 600,
-              transition: 'background-color var(--transition-fast), opacity var(--transition-fast)',
+              backgroundColor: settingsSaveFlash ? 'var(--success)' : undefined,
+              borderColor: settingsSaveFlash ? 'var(--success)' : undefined,
               opacity: !settingsDirty || !settingsValid ? 0.5 : 1,
               cursor: !settingsDirty || !settingsValid ? 'not-allowed' : 'pointer',
             }}
@@ -963,7 +851,7 @@ export function SettingsPage() {
         <div
           style={{
             backgroundColor: 'var(--bg-card)',
-            borderRadius: 'var(--radius-lg)',
+            borderRadius: 'var(--radius-xl)',
             border: '1px solid var(--border)',
             overflow: 'hidden',
           }}
@@ -992,20 +880,7 @@ export function SettingsPage() {
           </h2>
           <button
             onClick={() => setShowCreateProfileModal(true)}
-            style={{
-              display: 'inline-flex',
-              alignItems: 'center',
-              gap: 'var(--space-2)',
-              padding: 'var(--space-2) var(--space-4)',
-              borderRadius: 'var(--radius-md)',
-              backgroundColor: 'var(--accent)',
-              color: 'var(--text-inverse)',
-              fontSize: 'var(--font-size-sm)',
-              fontWeight: 600,
-              transition: 'background-color var(--transition-fast)',
-            }}
-            onMouseEnter={(e) => (e.currentTarget.style.backgroundColor = 'var(--accent-hover)')}
-            onMouseLeave={(e) => (e.currentTarget.style.backgroundColor = 'var(--accent)')}
+            className="btn btn-primary"
           >
             <Plus size={16} />
             Add Profile
@@ -1015,7 +890,7 @@ export function SettingsPage() {
         <div
           style={{
             backgroundColor: 'var(--bg-card)',
-            borderRadius: 'var(--radius-lg)',
+            borderRadius: 'var(--radius-xl)',
             border: '1px solid var(--border)',
             overflow: 'hidden',
           }}
@@ -1045,20 +920,7 @@ export function SettingsPage() {
           </h2>
           <button
             onClick={() => setShowCreateNotifModal(true)}
-            style={{
-              display: 'inline-flex',
-              alignItems: 'center',
-              gap: 'var(--space-2)',
-              padding: 'var(--space-2) var(--space-4)',
-              borderRadius: 'var(--radius-md)',
-              backgroundColor: 'var(--accent)',
-              color: 'var(--text-inverse)',
-              fontSize: 'var(--font-size-sm)',
-              fontWeight: 600,
-              transition: 'background-color var(--transition-fast)',
-            }}
-            onMouseEnter={(e) => (e.currentTarget.style.backgroundColor = 'var(--accent-hover)')}
-            onMouseLeave={(e) => (e.currentTarget.style.backgroundColor = 'var(--accent)')}
+            className="btn btn-primary"
           >
             <Plus size={16} />
             Add Channel
@@ -1068,7 +930,7 @@ export function SettingsPage() {
         <div
           style={{
             backgroundColor: 'var(--bg-card)',
-            borderRadius: 'var(--radius-lg)',
+            borderRadius: 'var(--radius-xl)',
             border: '1px solid var(--border)',
             overflow: 'hidden',
           }}
@@ -1148,36 +1010,15 @@ export function SettingsPage() {
           <button
             onClick={() => setDeletingProfile(null)}
             disabled={deleteProfileMutation.isPending}
-            style={{
-              padding: 'var(--space-2) var(--space-4)',
-              borderRadius: 'var(--radius-md)',
-              backgroundColor: 'var(--bg-hover)',
-              color: 'var(--text-primary)',
-              fontSize: 'var(--font-size-sm)',
-              fontWeight: 500,
-              transition: 'background-color var(--transition-fast)',
-            }}
-            onMouseEnter={(e) => (e.currentTarget.style.backgroundColor = 'var(--bg-selected)')}
-            onMouseLeave={(e) => (e.currentTarget.style.backgroundColor = 'var(--bg-hover)')}
+            className="btn btn-ghost"
           >
             Cancel
           </button>
           <button
             onClick={handleDeleteProfile}
             disabled={deleteProfileMutation.isPending}
-            style={{
-              display: 'inline-flex',
-              alignItems: 'center',
-              gap: 'var(--space-2)',
-              padding: 'var(--space-2) var(--space-4)',
-              borderRadius: 'var(--radius-md)',
-              backgroundColor: 'var(--danger)',
-              color: '#fff',
-              fontSize: 'var(--font-size-sm)',
-              fontWeight: 600,
-              transition: 'background-color var(--transition-fast)',
-              opacity: deleteProfileMutation.isPending ? 0.6 : 1,
-            }}
+            className="btn btn-danger"
+            style={{ opacity: deleteProfileMutation.isPending ? 0.6 : 1 }}
           >
             {deleteProfileMutation.isPending && <Loader size={14} style={{ animation: 'spin 1s linear infinite' }} />}
             Delete
@@ -1271,36 +1112,15 @@ export function SettingsPage() {
           <button
             onClick={() => setDeletingNotification(null)}
             disabled={deleteNotifMutation.isPending}
-            style={{
-              padding: 'var(--space-2) var(--space-4)',
-              borderRadius: 'var(--radius-md)',
-              backgroundColor: 'var(--bg-hover)',
-              color: 'var(--text-primary)',
-              fontSize: 'var(--font-size-sm)',
-              fontWeight: 500,
-              transition: 'background-color var(--transition-fast)',
-            }}
-            onMouseEnter={(e) => (e.currentTarget.style.backgroundColor = 'var(--bg-selected)')}
-            onMouseLeave={(e) => (e.currentTarget.style.backgroundColor = 'var(--bg-hover)')}
+            className="btn btn-ghost"
           >
             Cancel
           </button>
           <button
             onClick={handleDeleteNotification}
             disabled={deleteNotifMutation.isPending}
-            style={{
-              display: 'inline-flex',
-              alignItems: 'center',
-              gap: 'var(--space-2)',
-              padding: 'var(--space-2) var(--space-4)',
-              borderRadius: 'var(--radius-md)',
-              backgroundColor: 'var(--danger)',
-              color: '#fff',
-              fontSize: 'var(--font-size-sm)',
-              fontWeight: 600,
-              transition: 'background-color var(--transition-fast)',
-              opacity: deleteNotifMutation.isPending ? 0.6 : 1,
-            }}
+            className="btn btn-danger"
+            style={{ opacity: deleteNotifMutation.isPending ? 0.6 : 1 }}
           >
             {deleteNotifMutation.isPending && <Loader size={14} style={{ animation: 'spin 1s linear infinite' }} />}
             Delete
@@ -1338,36 +1158,15 @@ export function SettingsPage() {
           <button
             onClick={() => setShowRegenerateConfirm(false)}
             disabled={regenerateApiKeyMutation.isPending}
-            style={{
-              padding: 'var(--space-2) var(--space-4)',
-              borderRadius: 'var(--radius-md)',
-              backgroundColor: 'var(--bg-hover)',
-              color: 'var(--text-primary)',
-              fontSize: 'var(--font-size-sm)',
-              fontWeight: 500,
-              transition: 'background-color var(--transition-fast)',
-            }}
-            onMouseEnter={(e) => (e.currentTarget.style.backgroundColor = 'var(--bg-selected)')}
-            onMouseLeave={(e) => (e.currentTarget.style.backgroundColor = 'var(--bg-hover)')}
+            className="btn btn-ghost"
           >
             Cancel
           </button>
           <button
             onClick={handleRegenerateApiKey}
             disabled={regenerateApiKeyMutation.isPending}
-            style={{
-              display: 'inline-flex',
-              alignItems: 'center',
-              gap: 'var(--space-2)',
-              padding: 'var(--space-2) var(--space-4)',
-              borderRadius: 'var(--radius-md)',
-              backgroundColor: 'var(--warning)',
-              color: '#fff',
-              fontSize: 'var(--font-size-sm)',
-              fontWeight: 600,
-              transition: 'background-color var(--transition-fast)',
-              opacity: regenerateApiKeyMutation.isPending ? 0.6 : 1,
-            }}
+            className="btn btn-warning"
+            style={{ opacity: regenerateApiKeyMutation.isPending ? 0.6 : 1 }}
           >
             {regenerateApiKeyMutation.isPending && <Loader size={14} style={{ animation: 'spin 1s linear infinite' }} />}
             Regenerate

src/frontend/src/pages/System.tsx

@@ -1,6 +1,7 @@
-import { Loader, RefreshCw, Server, Activity, Cpu, HardDrive } from 'lucide-react';
+import { RefreshCw, Server, Activity, Cpu, HardDrive } from 'lucide-react';
 import { useSystemStatus, useHealth } from '../api/hooks/useSystem';
 import { HealthStatus } from '../components/HealthStatus';
+import { SkeletonSystem } from '../components/Skeleton';
 import { formatBytes } from '../utils/format';
 
 // ── Helpers ──
@@ -26,12 +27,7 @@ export function SystemPage() {
   const isLoading = healthLoading || statusLoading;
 
   if (isLoading) {
-    return (
-      <div style={{ display: 'flex', alignItems: 'center', justifyContent: 'center', padding: 'var(--space-12)', color: 'var(--text-muted)' }}>
-        <Loader size={20} style={{ animation: 'spin 1s linear infinite', marginRight: 'var(--space-3)' }} />
-        Loading system info...
-      </div>
-    );
+    return <SkeletonSystem />;
   }
 
   return (
@@ -52,25 +48,7 @@ export function SystemPage() {
             onClick={() => refetchHealth()}
             title="Refresh health status"
             aria-label="Refresh health status"
-            style={{
-              display: 'inline-flex',
-              alignItems: 'center',
-              gap: 'var(--space-2)',
-              padding: 'var(--space-2) var(--space-3)',
-              borderRadius: 'var(--radius-md)',
-              backgroundColor: 'var(--bg-hover)',
-              color: 'var(--text-secondary)',
-              fontSize: 'var(--font-size-sm)',
-              transition: 'color var(--transition-fast), background-color var(--transition-fast)',
-            }}
-            onMouseEnter={(e) => {
-              e.currentTarget.style.color = 'var(--text-primary)';
-              e.currentTarget.style.backgroundColor = 'var(--bg-selected)';
-            }}
-            onMouseLeave={(e) => {
-              e.currentTarget.style.color = 'var(--text-secondary)';
-              e.currentTarget.style.backgroundColor = 'var(--bg-hover)';
-            }}
+            className="btn btn-ghost"
           >
             <RefreshCw size={14} />
             Refresh
@@ -95,17 +73,7 @@ export function SystemPage() {
             <button
               onClick={() => refetchHealth()}
               aria-label="Retry"
-              style={{
-                display: 'inline-flex',
-                alignItems: 'center',
-                gap: 'var(--space-2)',
-                padding: 'var(--space-2) var(--space-3)',
-                borderRadius: 'var(--radius-md)',
-                backgroundColor: 'var(--danger)',
-                color: '#fff',
-                fontSize: 'var(--font-size-sm)',
-                fontWeight: 600,
-              }}
+              className="btn btn-danger"
             >
               <RefreshCw size={14} />
               Retry
@@ -127,25 +95,7 @@ export function SystemPage() {
             onClick={() => refetchStatus()}
             title="Refresh system status"
             aria-label="Refresh system status"
-            style={{
-              display: 'inline-flex',
-              alignItems: 'center',
-              gap: 'var(--space-2)',
-              padding: 'var(--space-2) var(--space-3)',
-              borderRadius: 'var(--radius-md)',
-              backgroundColor: 'var(--bg-hover)',
-              color: 'var(--text-secondary)',
-              fontSize: 'var(--font-size-sm)',
-              transition: 'color var(--transition-fast), background-color var(--transition-fast)',
-            }}
-            onMouseEnter={(e) => {
-              e.currentTarget.style.color = 'var(--text-primary)';
-              e.currentTarget.style.backgroundColor = 'var(--bg-selected)';
-            }}
-            onMouseLeave={(e) => {
-              e.currentTarget.style.color = 'var(--text-secondary)';
-              e.currentTarget.style.backgroundColor = 'var(--bg-hover)';
-            }}
+            className="btn btn-ghost"
           >
             <RefreshCw size={14} />
             Refresh
@@ -170,17 +120,7 @@ export function SystemPage() {
             <button
               onClick={() => refetchStatus()}
               aria-label="Retry"
-              style={{
-                display: 'inline-flex',
-                alignItems: 'center',
-                gap: 'var(--space-2)',
-                padding: 'var(--space-2) var(--space-3)',
-                borderRadius: 'var(--radius-md)',
-                backgroundColor: 'var(--danger)',
-                color: '#fff',
-                fontSize: 'var(--font-size-sm)',
-                fontWeight: 600,
-              }}
+              className="btn btn-danger"
             >
               <RefreshCw size={14} />
               Retry

src/frontend/src/styles/global.css

@@ -1,5 +1,6 @@
 /* ── Global Reset & Base Styles ── */
 @import './theme.css';
+@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');
 
 *,
 *::before,
@@ -13,6 +14,7 @@ html {
   font-size: 16px;
   -webkit-font-smoothing: antialiased;
   -moz-osx-font-smoothing: grayscale;
+  text-rendering: optimizeLegibility;
 }
 
 body {
@@ -22,6 +24,7 @@ body {
   background-color: var(--bg-main);
   line-height: 1.5;
   min-height: 100vh;
+  letter-spacing: -0.01em;
 }
 
 #root {
@@ -32,6 +35,7 @@ body {
 a {
   color: var(--text-link);
   text-decoration: none;
+  transition: color var(--transition-fast);
 }
 
 a:hover {
@@ -42,25 +46,26 @@ a:hover {
 :focus-visible {
   outline: 2px solid var(--accent);
   outline-offset: 2px;
+  border-radius: var(--radius-sm);
 }
 
 /* ── Scrollbar styling ── */
 ::-webkit-scrollbar {
-  width: 8px;
-  height: 8px;
+  width: 6px;
+  height: 6px;
 }
 
 ::-webkit-scrollbar-track {
-  background: var(--bg-main);
+  background: transparent;
 }
 
 ::-webkit-scrollbar-thumb {
-  background: var(--border-light);
-  border-radius: 4px;
+  background: rgba(255, 255, 255, 0.08);
+  border-radius: 3px;
 }
 
 ::-webkit-scrollbar-thumb:hover {
-  background: var(--text-muted);
+  background: rgba(255, 255, 255, 0.15);
 }
 
 /* ── Buttons base ── */
@@ -71,6 +76,7 @@ button {
   border: none;
   background: none;
   color: inherit;
+  transition: all var(--transition-fast);
 }
 
 /* ── Inputs base ── */
@@ -81,15 +87,17 @@ select {
   font-size: inherit;
   color: var(--text-primary);
   background-color: var(--bg-input);
-  border: 1px solid var(--border);
+  border: 1px solid var(--border-light);
   border-radius: var(--radius-md);
   padding: var(--space-2) var(--space-3);
+  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
 }
 
 input:focus,
 textarea:focus,
 select:focus {
   border-color: var(--accent);
+  box-shadow: 0 0 0 3px var(--accent-subtle);
   outline: none;
 }
 
@@ -106,10 +114,10 @@ table {
 th {
   text-align: left;
   font-weight: 600;
-  font-size: var(--font-size-sm);
-  color: var(--text-secondary);
+  font-size: var(--font-size-xs);
+  color: var(--text-muted);
   text-transform: uppercase;
-  letter-spacing: 0.03em;
+  letter-spacing: 0.06em;
   padding: var(--space-3) var(--space-4);
   border-bottom: 1px solid var(--border);
 }
@@ -136,6 +144,161 @@ tr:hover {
   border-width: 0;
 }
 
+/* ── Glassmorphism card ── */
+.glass-card {
+  background: var(--glass-bg);
+  backdrop-filter: blur(var(--glass-blur));
+  -webkit-backdrop-filter: blur(var(--glass-blur));
+  border: 1px solid var(--glass-border);
+  border-radius: var(--radius-xl);
+}
+
+/* ── Skeleton loader ── */
+.skeleton {
+  background: linear-gradient(
+    90deg,
+    var(--bg-input) 25%,
+    rgba(255, 255, 255, 0.04) 50%,
+    var(--bg-input) 75%
+  );
+  background-size: 200% 100%;
+  animation: skeleton-shimmer 1.8s ease-in-out infinite;
+  border-radius: var(--radius-md);
+}
+
+@keyframes skeleton-shimmer {
+  0% { background-position: 200% 0; }
+  100% { background-position: -200% 0; }
+}
+
+/* ── Status badge glow ── */
+.badge-pulse {
+  animation: badge-glow 2s ease-in-out infinite;
+}
+
+@keyframes badge-glow {
+  0%, 100% { box-shadow: none; }
+  50% { box-shadow: 0 0 8px var(--accent-glow); }
+}
+
+/* ── Button utility classes ── */
+.btn {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  gap: var(--space-2);
+  padding: var(--space-2) var(--space-3);
+  border-radius: var(--radius-md);
+  font-size: var(--font-size-sm);
+  font-weight: 600;
+  font-family: inherit;
+  cursor: pointer;
+  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
+  border: 1px solid transparent;
+  text-decoration: none;
+  white-space: nowrap;
+  flex-shrink: 0;
+}
+
+.btn:disabled {
+  opacity: 0.5;
+  cursor: not-allowed;
+}
+
+.btn-primary {
+  background-color: var(--accent);
+  color: #fff;
+  border-color: var(--accent);
+}
+
+.btn-primary:hover:not(:disabled) {
+  background-color: var(--accent-hover);
+  border-color: var(--accent-hover);
+}
+
+.btn-ghost {
+  background-color: var(--bg-hover);
+  color: var(--text-secondary);
+  border-color: transparent;
+}
+
+.btn-ghost:hover:not(:disabled) {
+  background-color: var(--bg-selected);
+  color: var(--text-primary);
+}
+
+.btn-danger {
+  background-color: var(--danger);
+  color: #fff;
+  border-color: var(--danger);
+}
+
+.btn-danger:hover:not(:disabled) {
+  filter: brightness(1.15);
+}
+
+.btn-icon {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 28px;
+  height: 28px;
+  padding: 0;
+  border: none;
+  border-radius: var(--radius-sm);
+  background: transparent;
+  color: var(--text-muted);
+  cursor: pointer;
+  transition: color var(--transition-fast), background-color var(--transition-fast);
+}
+
+.btn-icon:hover {
+  color: var(--text-primary);
+  background-color: var(--bg-hover);
+}
+
+.btn-icon-edit:hover {
+  color: var(--accent);
+  background-color: var(--accent-subtle);
+}
+
+.btn-icon-delete:hover {
+  color: var(--danger);
+  background-color: var(--danger-bg);
+}
+
+.btn-icon-test:hover {
+  color: var(--success);
+  background-color: var(--success-bg);
+}
+
+.btn-icon-warning:hover {
+  color: var(--warning);
+  background-color: var(--warning-bg);
+}
+
+.btn-warning {
+  background-color: var(--warning);
+  color: #fff;
+  border-color: var(--warning);
+}
+
+.btn-warning:hover:not(:disabled) {
+  filter: brightness(1.15);
+}
+
+/* ── Modal animation ── */
+@keyframes modal-enter {
+  from {
+    opacity: 0;
+    transform: scale(0.95) translateY(8px);
+  }
+  to {
+    opacity: 1;
+    transform: scale(1) translateY(0);
+  }
+}
+
 /* ── Animations ── */
 @keyframes pulse {
   0%, 100% { opacity: 1; }
@@ -146,3 +309,51 @@ tr:hover {
   from { transform: rotate(0deg); }
   to { transform: rotate(360deg); }
 }
+
+@keyframes fade-in {
+  from { opacity: 0; transform: translateY(4px); }
+  to { opacity: 1; transform: translateY(0); }
+}
+
+@keyframes slide-up {
+  from { opacity: 0; transform: translateY(12px); }
+  to { opacity: 1; transform: translateY(0); }
+}
+
+/* ── Page transition ── */
+main {
+  animation: fade-in 200ms ease-out;
+}
+
+/* ── Table row transitions ── */
+tbody tr {
+  transition: background-color var(--transition-fast);
+}
+
+tbody tr:hover {
+  background-color: var(--bg-hover);
+}
+
+/* ── Card checkbox visibility on hover ── */
+div:hover > .card-checkbox,
+.card-checkbox:has(input:checked) {
+  opacity: 1 !important;
+}
+
+/* ── Responsive ── */
+@keyframes toast-slide-in {
+  from {
+    opacity: 0;
+    transform: translateX(20px);
+  }
+  to {
+    opacity: 1;
+    transform: translateX(0);
+  }
+}
+
+@media (max-width: 768px) {
+  :root {
+    --sidebar-width: 0px;
+  }
+}

src/frontend/src/styles/theme.css

@@ -1,56 +1,60 @@
 /* ── *arr Dark Theme ──
- * Color palette matching Sonarr/Radarr aesthetic.
+ * Color palette matching Sonarr/Radarr aesthetic with modern glassmorphism touches.
  * All UI components reference these custom properties.
  */
 
 :root {
   /* ── Backgrounds ── */
-  --bg-main: #1a1d23;
-  --bg-sidebar: #14161a;
-  --bg-card: #242731;
-  --bg-input: #2a2e38;
-  --bg-hover: #2f3341;
-  --bg-selected: #35394a;
-  --bg-header: #1e2029;
-  --bg-toolbar: #1e2129;
-  --bg-modal-overlay: rgba(0, 0, 0, 0.6);
+  --bg-main: #0f1117;
+  --bg-sidebar: #0a0c10;
+  --bg-card: rgba(30, 33, 44, 0.8);
+  --bg-card-solid: #1e212c;
+  --bg-input: #1a1d26;
+  --bg-hover: rgba(255, 255, 255, 0.04);
+  --bg-selected: rgba(255, 255, 255, 0.08);
+  --bg-header: #13151c;
+  --bg-toolbar: #13151c;
+  --bg-modal-overlay: rgba(0, 0, 0, 0.7);
+  --bg-glass: rgba(20, 22, 30, 0.6);
 
   /* ── Accent ── */
   --accent: #e05d44;
-  --accent-hover: #c94e38;
-  --accent-subtle: rgba(224, 93, 68, 0.12);
+  --accent-hover: #f06a51;
+  --accent-subtle: rgba(224, 93, 68, 0.1);
+  --accent-glow: rgba(224, 93, 68, 0.25);
 
   /* ── Text ── */
-  --text-primary: #e1e2e6;
+  --text-primary: #e8e9ed;
   --text-secondary: #8b8d97;
-  --text-muted: #5d5f69;
-  --text-inverse: #14161a;
+  --text-muted: #4d5060;
+  --text-inverse: #0f1117;
   --text-link: #e05d44;
 
   /* ── Status colors ── */
-  --success: #27c24c;
-  --success-bg: rgba(39, 194, 76, 0.12);
-  --warning: #ff902b;
-  --warning-bg: rgba(255, 144, 43, 0.12);
+  --success: #34d058;
+  --success-bg: rgba(52, 208, 88, 0.1);
+  --warning: #ff9f43;
+  --warning-bg: rgba(255, 159, 67, 0.1);
   --danger: #f05050;
-  --danger-bg: rgba(240, 80, 80, 0.12);
+  --danger-bg: rgba(240, 80, 80, 0.1);
   --info: #e05d44;
-  --info-bg: rgba(224, 93, 68, 0.12);
+  --info-bg: rgba(224, 93, 68, 0.1);
 
   /* ── Borders ── */
-  --border: #2d3040;
-  --border-light: #373b4e;
+  --border: rgba(255, 255, 255, 0.06);
+  --border-light: rgba(255, 255, 255, 0.1);
+  --border-accent: rgba(224, 93, 68, 0.3);
 
   /* ── Typography ── */
-  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
-  --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
-  --font-size-xs: 0.75rem;
+  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
+  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
+  --font-size-xs: 0.6875rem;
   --font-size-sm: 0.8125rem;
   --font-size-base: 0.875rem;
   --font-size-md: 1rem;
   --font-size-lg: 1.125rem;
-  --font-size-xl: 1.25rem;
-  --font-size-2xl: 1.5rem;
+  --font-size-xl: 1.375rem;
+  --font-size-2xl: 1.75rem;
 
   /* ── Spacing ── */
   --space-1: 0.25rem;
@@ -64,22 +68,32 @@
   --space-12: 3rem;
 
   /* ── Border Radius ── */
-  --radius-sm: 3px;
-  --radius-md: 4px;
-  --radius-lg: 6px;
-  --radius-xl: 8px;
+  --radius-sm: 4px;
+  --radius-md: 6px;
+  --radius-lg: 10px;
+  --radius-xl: 14px;
+  --radius-2xl: 20px;
+  --radius-full: 9999px;
 
   /* ── Shadows ── */
-  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
-  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.3);
-  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.4);
+  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4), 0 1px 2px rgba(0, 0, 0, 0.3);
+  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
+  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
+  --shadow-glow: 0 0 20px rgba(224, 93, 68, 0.15);
 
   /* ── Layout ── */
-  --sidebar-width: 210px;
-  --sidebar-collapsed: 50px;
-  --header-height: 55px;
+  --sidebar-width: 220px;
+  --sidebar-collapsed: 56px;
+  --header-height: 56px;
 
   /* ── Transitions ── */
-  --transition-fast: 150ms ease;
-  --transition-normal: 250ms ease;
+  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
+  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
+  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
+  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
+
+  /* ── Glassmorphism ── */
+  --glass-blur: 12px;
+  --glass-bg: rgba(20, 22, 30, 0.6);
+  --glass-border: rgba(255, 255, 255, 0.08);
 }

src/index.ts

@@ -23,6 +23,7 @@ import { PlatformRegistry } from './sources/platform-source';
 import { YouTubeSource } from './sources/youtube';
 import { SoundCloudSource } from './sources/soundcloud';
 import { Platform } from './types/index';
+import { getYtDlpVersion, updateYtDlp } from './sources/yt-dlp';
 import type { ViteDevServer } from 'vite';
 
 const APP_NAME = 'Tubearr';
@@ -44,6 +45,25 @@ async function main(): Promise<void> {
   await seedAppDefaults(db);
   console.log(`[${APP_NAME}] App settings seeded`);
 
+  // 2d. Check yt-dlp version and auto-update if configured
+  try {
+    const version = await getYtDlpVersion();
+    if (version) {
+      console.log(`[${APP_NAME}] yt-dlp version: ${version}`);
+      // Auto-update on startup (non-blocking — continue if it fails)
+      if (appConfig.nodeEnv === 'production') {
+        const result = await updateYtDlp();
+        if (result.updated) {
+          console.log(`[${APP_NAME}] yt-dlp updated: ${result.previousVersion} → ${result.version}`);
+        }
+      }
+    } else {
+      console.warn(`[${APP_NAME}] yt-dlp not found on PATH — downloads will fail`);
+    }
+  } catch (err) {
+    console.warn(`[${APP_NAME}] yt-dlp check failed: ${err instanceof Error ? err.message : String(err)}`);
+  }
+
   // 3. Build and configure Fastify server
   // In dev mode, embed Vite for HMR — single port, no separate frontend process
   let vite: ViteDevServer | undefined;

src/server/routes/content.ts

@@ -2,6 +2,7 @@ import { type FastifyInstance } from 'fastify';
 import {
   getAllContentItems,
   getContentByChannelId,
+  getChannelContentPaginated,
   setMonitored,
   bulkSetMonitored,
 } from '../../db/repositories/content-repository';
@@ -202,6 +203,15 @@ export async function contentRoutes(fastify: FastifyInstance): Promise<void> {
 
   fastify.get<{
     Params: { id: string };
+    Querystring: {
+      page?: string;
+      pageSize?: string;
+      search?: string;
+      status?: string;
+      contentType?: string;
+      sortBy?: string;
+      sortDirection?: string;
+    };
   }>('/api/v1/channel/:id/content', async (request, reply) => {
     const channelId = parseInt(request.params.id, 10);
 
@@ -213,13 +223,51 @@ export async function contentRoutes(fastify: FastifyInstance): Promise<void> {
       });
     }
 
-    try {
-      const items = await getContentByChannelId(fastify.db, channelId);
+    const page = Math.max(1, parseInt(request.query.page ?? '1', 10) || 1);
+    const pageSize = Math.min(
+      200,
+      Math.max(1, parseInt(request.query.pageSize ?? '50', 10) || 50)
+    );
 
+    // If no pagination params provided, return all items (backwards-compatible)
+    const hasPaginationParams = request.query.page || request.query.pageSize || request.query.search || request.query.status || request.query.contentType || request.query.sortBy;
+
+    try {
+      if (!hasPaginationParams) {
+        // Legacy mode: return all items as flat array (backwards-compatible)
+        const items = await getContentByChannelId(fastify.db, channelId);
         const response: ApiResponse<ContentItem[]> = {
           success: true,
           data: items,
         };
+        return response;
+      }
+
+      // Paginated mode with filters
+      const result = await getChannelContentPaginated(
+        fastify.db,
+        channelId,
+        {
+          search: request.query.search || undefined,
+          status: (request.query.status as ContentStatus) || undefined,
+          contentType: (request.query.contentType as ContentType) || undefined,
+          sortBy: request.query.sortBy as 'title' | 'publishedAt' | 'status' | 'duration' | 'fileSize' | 'downloadedAt' | undefined,
+          sortDirection: (request.query.sortDirection as 'asc' | 'desc') || undefined,
+        },
+        page,
+        pageSize
+      );
+
+      const response: PaginatedResponse<ContentItem> = {
+        success: true,
+        data: result.items,
+        pagination: {
+          page,
+          pageSize,
+          totalItems: result.total,
+          totalPages: Math.ceil(result.total / pageSize),
+        },
+      };
 
       return response;
     } catch (err) {

src/services/download.ts

@@ -3,7 +3,7 @@ import { extname } from 'node:path';
 import { createInterface } from 'node:readline';
 import type { LibSQLDatabase } from 'drizzle-orm/libsql';
 import type * as schema from '../db/schema/index';
-import { execYtDlp, spawnYtDlp, YtDlpError } from '../sources/yt-dlp';
+import { execYtDlp, spawnYtDlp, YtDlpError, classifyYtDlpError } from '../sources/yt-dlp';
 import { updateContentItem } from '../db/repositories/content-repository';
 import { parseProgressLine } from './progress-parser';
 import type { DownloadEventBus } from './event-bus';
@@ -137,16 +137,22 @@ export class DownloadService {
       // Report error to rate limiter
       this.rateLimiter.reportError(channel.platform as Platform);
 
+      // Classify the error for better retry decisions
+      const errorMsg = err instanceof Error ? err.message : String(err);
+      const stderr = err instanceof YtDlpError ? err.stderr : '';
+      const errorCategory = classifyYtDlpError(stderr || errorMsg);
+
       // Update status to failed
       await updateContentItem(this.db, contentItem.id, { status: 'failed' });
 
-      const errorMsg = err instanceof Error ? err.message : String(err);
-      console.log(`${logPrefix} status=failed error="${errorMsg.slice(0, 200)}"`);
+      console.log(
+        `${logPrefix} status=failed category=${errorCategory} error="${errorMsg.slice(0, 200)}"`
+      );
 
-      // Emit download:failed event
+      // Emit download:failed event with error category
       this.eventBus?.emitDownload('download:failed', {
         contentItemId: contentItem.id,
-        error: errorMsg.slice(0, 200),
+        error: `[${errorCategory}] ${errorMsg.slice(0, 200)}`,
       });
 
       throw err;
@@ -288,32 +294,32 @@ export class DownloadService {
 
   /**
    * Build format args for video content.
+   * Uses a fallback chain: preferred resolution → best available → any.
+   * yt-dlp supports `/` as a fallback separator: `format1/format2/format3`.
    */
   private buildVideoArgs(formatProfile?: FormatProfile): string[] {
     const args: string[] = [];
+    const container = formatProfile?.containerFormat ?? 'mp4';
 
     if (formatProfile?.videoResolution === 'Best') {
-      // "Best" selects separate best-quality video + audio streams, merged together.
-      // This is higher quality than `-f best` which picks a single combined format.
-      args.push('-f', 'bestvideo+bestaudio/best');
-      const container = formatProfile.containerFormat ?? 'mp4';
+      // Best quality: separate streams merged
+      args.push('-f', 'bestvideo+bestaudio/bestvideo*+bestaudio/best');
       args.push('--merge-output-format', container);
     } else if (formatProfile?.videoResolution) {
       const height = parseResolutionHeight(formatProfile.videoResolution);
       if (height) {
+        // Fallback chain: exact res → best under res → single best stream → any
         args.push(
           '-f',
-          `bestvideo[height<=${height}]+bestaudio/best[height<=${height}]`
+          `bestvideo[height<=${height}]+bestaudio/bestvideo[height<=${height}]*+bestaudio/best[height<=${height}]/bestvideo+bestaudio/best`
         );
       } else {
-        args.push('-f', 'best');
+        args.push('-f', 'bestvideo+bestaudio/best');
       }
-
-      // Container format for merge
-      const container = formatProfile.containerFormat ?? 'mp4';
       args.push('--merge-output-format', container);
     } else {
-      args.push('-f', 'best');
+      args.push('-f', 'bestvideo+bestaudio/best');
+      args.push('--merge-output-format', container);
     }
 
     return args;
@@ -367,18 +373,33 @@ export class DownloadService {
 
   /**
    * Parse the final file path from yt-dlp stdout.
-   * The `--print after_move:filepath` flag makes yt-dlp output the final path
-   * as the last line of stdout.
+   * The `--print after_move:filepath` flag makes yt-dlp output the final path.
+   *
+   * Strategy: walk backwards through lines, skipping known yt-dlp output prefixes
+   * (e.g. [download], [Merger], [ExtractAudio], Deleting).
+   * A valid path line should be an absolute path or at least contain a file extension.
    */
   private parseFinalPath(stdout: string, fallbackPath: string): string {
     const lines = stdout.trim().split('\n');
-    // The filepath from --print is typically the last non-empty line
+
+    // Known non-path prefixes from yt-dlp output
+    const NON_PATH_PREFIXES = ['[', 'Deleting', 'WARNING:', 'ERROR:', 'Merging', 'Post-process'];
+
     for (let i = lines.length - 1; i >= 0; i--) {
       const line = lines[i].trim();
-      if (line && !line.startsWith('[') && !line.startsWith('Deleting')) {
+      if (!line) continue;
+
+      // Skip known yt-dlp output lines
+      const isNonPath = NON_PATH_PREFIXES.some((prefix) => line.startsWith(prefix));
+      if (isNonPath) continue;
+
+      // A valid path should have a file extension or start with /
+      if (line.startsWith('/') || /\.\w{2,5}$/.test(line)) {
         return line;
       }
     }
+
+    console.warn('[download] Could not parse final path from yt-dlp output, using fallback');
     return fallbackPath;
   }
 

src/sources/yt-dlp.ts

@@ -212,3 +212,88 @@ export async function getYtDlpVersion(): Promise<string | null> {
     return null;
   }
 }
+
+// ── Auto-Update ──
+
+/**
+ * Update yt-dlp to the latest version.
+ * Uses `yt-dlp -U` which handles self-update on most installations.
+ * For pip-based installs (Alpine/Docker), falls back to `pip install -U yt-dlp`.
+ *
+ * Returns { updated, version, previousVersion } on success.
+ */
+export async function updateYtDlp(): Promise<{
+  updated: boolean;
+  version: string | null;
+  previousVersion: string | null;
+}> {
+  const previousVersion = await getYtDlpVersion();
+
+  try {
+    // Try native self-update first
+    const { stderr } = await execFileAsync('yt-dlp', ['-U'], {
+      timeout: 120_000,
+      windowsHide: true,
+    });
+
+    // Check if it actually updated
+    const newVersion = await getYtDlpVersion();
+    const didUpdate = newVersion !== previousVersion;
+
+    if (didUpdate) {
+      console.log(`[yt-dlp] Updated from ${previousVersion} to ${newVersion}`);
+    } else if (stderr.toLowerCase().includes('up to date')) {
+      console.log(`[yt-dlp] Already up to date (${newVersion})`);
+    }
+
+    return { updated: didUpdate, version: newVersion, previousVersion };
+  } catch (err) {
+    // Self-update may not work in pip-based installs — try pip
+    try {
+      await execFileAsync('pip', ['install', '-U', 'yt-dlp'], {
+        timeout: 120_000,
+        windowsHide: true,
+      });
+
+      const newVersion = await getYtDlpVersion();
+      const didUpdate = newVersion !== previousVersion;
+      console.log(
+        `[yt-dlp] pip update: ${previousVersion} → ${newVersion}${didUpdate ? '' : ' (no change)'}`
+      );
+
+      return { updated: didUpdate, version: newVersion, previousVersion };
+    } catch (pipErr) {
+      console.warn(
+        `[yt-dlp] Auto-update failed: ${err instanceof Error ? err.message : String(err)}`
+      );
+      return { updated: false, version: previousVersion, previousVersion };
+    }
+  }
+}
+
+// ── Error Classification ──
+
+/**
+ * Classify a yt-dlp error into a category for better retry/fallback decisions.
+ */
+export type YtDlpErrorCategory =
+  | 'rate_limit'       // 429, too many requests
+  | 'format_unavailable' // requested format not available
+  | 'geo_blocked'      // geo-restriction
+  | 'age_restricted'   // age-gated content
+  | 'private'          // private or removed video
+  | 'network'          // DNS, connection, timeout
+  | 'unknown';
+
+export function classifyYtDlpError(stderr: string): YtDlpErrorCategory {
+  const lower = stderr.toLowerCase();
+
+  if (lower.includes('429') || lower.includes('too many requests')) return 'rate_limit';
+  if (lower.includes('requested format') || lower.includes('format is not available')) return 'format_unavailable';
+  if (lower.includes('not available in your country') || lower.includes('geo')) return 'geo_blocked';
+  if (lower.includes('age') && (lower.includes('restricted') || lower.includes('verify'))) return 'age_restricted';
+  if (lower.includes('private video') || lower.includes('video unavailable') || lower.includes('been removed')) return 'private';
+  if (lower.includes('unable to download') || lower.includes('connection') || lower.includes('timed out') || lower.includes('urlopen error')) return 'network';
+
+  return 'unknown';
+}