feat(explore): Explore tab with catalog detail, search, and Seerr requests

lib/mixins/debounced_media_search.dart

@@ -0,0 +1,166 @@
+import 'dart:async';
+
+import 'package:flutter/widgets.dart';
+
+import '../media/media_item.dart';
+import '../utils/app_logger.dart';
+
+/// Debounced free-text media search shared by the main search screen and the
+/// catalog (Explore) search screen: text controller + focus nodes, a 500ms
+/// debounce, a generation guard against out-of-order responses, in-flight
+/// invalidation when the text diverges from the query being fetched, and the
+/// loading/failed/empty state flags the screens render from.
+///
+/// Implementations override [performSearchQuery]; everything else (including
+/// controller/node disposal) is owned here.
+mixin DebouncedMediaSearch<T extends StatefulWidget> on State<T> {
+  static const Duration searchDebounceDuration = Duration(milliseconds: 500);
+
+  late final TextEditingController searchController = TextEditingController();
+  late final FocusNode searchFocusNode = FocusNode(debugLabel: '${searchDebugLabel}Input');
+  late final FocusNode firstResultFocusNode = FocusNode(debugLabel: '${searchDebugLabel}FirstResult');
+
+  /// Plain restartable timer instead of rate_limiter's Debounce: that one
+  /// times its trailing edge with DateTime.now(), which never advances under
+  /// the widget-test fake clock, so the debounce would be untestable.
+  Timer? _debounceTimer;
+
+  List<MediaItem> searchResults = [];
+  bool isSearching = false;
+  bool hasSearched = false;
+  bool lastSearchFailed = false;
+  String lastSearchedQuery = '';
+
+  int _searchGeneration = 0;
+  String? _inFlightQuery;
+  bool _showedClearButton = false;
+
+  /// Names the focus nodes and log lines.
+  String get searchDebugLabel => widget.runtimeType.toString();
+
+  /// Run the actual search. Thrown errors flip [lastSearchFailed].
+  Future<List<MediaItem>> performSearchQuery(String query);
+
+  /// A failed search was applied to the state (e.g. show a snackbar).
+  void onSearchError(Object error) {}
+
+  /// A successful search was applied to the state.
+  void onSearchCompleted(String query, List<MediaItem> results) {}
+
+  /// The field was cleared and the state reset.
+  void onSearchCleared() {}
+
+  @override
+  void initState() {
+    super.initState();
+    searchController.addListener(_onSearchTextChanged);
+  }
+
+  @override
+  void dispose() {
+    _debounceTimer?.cancel();
+    searchController.removeListener(_onSearchTextChanged);
+    searchController.dispose();
+    searchFocusNode.dispose();
+    firstResultFocusNode.dispose();
+    super.dispose();
+  }
+
+  void _onSearchTextChanged() {
+    if (!mounted) return;
+    final query = searchController.text.trim();
+
+    // The clear affordance tracks text emptiness; without this rebuild it
+    // only appeared when a search landed ~500ms later.
+    if (query.isNotEmpty != _showedClearButton) {
+      _showedClearButton = query.isNotEmpty;
+      setState(() {});
+    }
+
+    if (query.isEmpty) {
+      _debounceTimer?.cancel();
+      _searchGeneration++;
+      _inFlightQuery = null;
+      setState(() {
+        searchResults = [];
+        hasSearched = false;
+        isSearching = false;
+        lastSearchFailed = false;
+        lastSearchedQuery = '';
+      });
+      onSearchCleared();
+      return;
+    }
+
+    if (query == lastSearchedQuery) {
+      // Reverted to what's already shown: the pending debounce and any
+      // in-flight pass for the intermediate text must not land afterwards.
+      _debounceTimer?.cancel();
+      if (_invalidateStaleInFlight(query)) setState(() => isSearching = false);
+      return;
+    }
+
+    _invalidateStaleInFlight(query);
+    _debounceTimer?.cancel();
+    _debounceTimer = Timer(searchDebounceDuration, () => runSearch(query));
+  }
+
+  /// An in-flight search for text the field no longer shows can only land
+  /// wrong; kill it via the generation. Returns true when one was dropped.
+  bool _invalidateStaleInFlight(String current) {
+    if (_inFlightQuery == null || _inFlightQuery == current) return false;
+    _searchGeneration++;
+    _inFlightQuery = null;
+    return true;
+  }
+
+  /// Run [query] now, bypassing the debounce (submit, external refresh).
+  Future<void> runSearch(String query) async {
+    if (!mounted || query.isEmpty) return;
+    final generation = ++_searchGeneration;
+    _inFlightQuery = query;
+    setState(() {
+      isSearching = true;
+      hasSearched = true;
+      lastSearchFailed = false;
+    });
+    try {
+      final results = await performSearchQuery(query);
+      if (!mounted || generation != _searchGeneration) return;
+      _inFlightQuery = null;
+      setState(() {
+        searchResults = results;
+        isSearching = false;
+        lastSearchedQuery = query;
+      });
+      onSearchCompleted(query, results);
+    } catch (e) {
+      appLogger.w('$searchDebugLabel: search failed', error: e);
+      if (!mounted || generation != _searchGeneration) return;
+      _inFlightQuery = null;
+      setState(() {
+        searchResults = [];
+        isSearching = false;
+        lastSearchFailed = true;
+        lastSearchedQuery = query;
+      });
+      onSearchError(e);
+    }
+  }
+
+  /// OSK "Search" / hardware Enter on TV: jump to results, or force the
+  /// pending search to run now.
+  void handleSearchSubmit() {
+    final query = searchController.text.trim();
+    if (query.isEmpty) return;
+    if (searchResults.isNotEmpty && !isSearching && query == lastSearchedQuery) {
+      firstResultFocusNode.requestFocus();
+      return;
+    }
+    if ((_debounceTimer?.isActive ?? false) || !isSearching) {
+      _debounceTimer?.cancel();
+      runSearch(query);
+    }
+    // else: the in-flight search already covers the current text.
+  }
+}

lib/navigation/navigation_tabs.dart

@@ -6,7 +6,7 @@ import '../i18n/strings.g.dart';
 import '../utils/platform_detector.dart';
 
 /// Navigation tab identifiers
-enum NavigationTabId { discover, libraries, liveTv, search, downloads, settings }
+enum NavigationTabId { discover, explore, libraries, liveTv, search, downloads, settings }
 
 /// Represents a navigation tab with its configuration
 class NavigationTab {
@@ -22,16 +22,21 @@ class NavigationTab {
   }
 
   /// Get the index for a tab ID in the visible tabs list
-  static int indexFor(NavigationTabId id, {required bool isOffline, bool hasLiveTv = false}) {
-    final tabs = getVisibleTabs(isOffline: isOffline, hasLiveTv: hasLiveTv);
+  static int indexFor(NavigationTabId id, {required bool isOffline, bool hasLiveTv = false, bool hasExplore = false}) {
+    final tabs = getVisibleTabs(isOffline: isOffline, hasLiveTv: hasLiveTv, hasExplore: hasExplore);
     return tabs.indexWhere((tab) => tab.id == id);
   }
 
   /// Get tabs filtered by offline mode and feature availability
-  static List<NavigationTab> getVisibleTabs({required bool isOffline, bool hasLiveTv = false}) {
+  static List<NavigationTab> getVisibleTabs({
+    required bool isOffline,
+    bool hasLiveTv = false,
+    bool hasExplore = false,
+  }) {
     return allNavigationTabs.where((tab) {
       if (isOffline && tab.onlineOnly) return false;
       if (tab.id == NavigationTabId.liveTv && !hasLiveTv) return false;
+      if (tab.id == NavigationTabId.explore && !hasExplore) return false;
       if (tab.id == NavigationTabId.downloads && PlatformDetector.isAppleTV()) return false;
       return true;
     }).toList();
@@ -45,9 +50,10 @@ class NavigationTab {
   static NavigationTabId resolveDefaultTab({
     required bool isOffline,
     required bool hasLiveTv,
+    bool hasExplore = false,
     required NavigationTabId? preferredStartup,
   }) {
-    final tabs = getVisibleTabs(isOffline: isOffline, hasLiveTv: hasLiveTv);
+    final tabs = getVisibleTabs(isOffline: isOffline, hasLiveTv: hasLiveTv, hasExplore: hasExplore);
     if (isOffline && tabs.any((t) => t.id == NavigationTabId.downloads)) {
       return NavigationTabId.downloads;
     }
@@ -60,6 +66,7 @@ class NavigationTab {
 
 // Label getters (must be top-level for const constructor)
 String _getHomeLabel() => t.common.home;
+String _getExploreLabel() => t.navigation.explore;
 String _getLibrariesLabel() => t.navigation.libraries;
 String _getLiveTvLabel() => t.navigation.liveTv;
 String _getSearchLabel() => t.common.search;
@@ -76,6 +83,12 @@ const allNavigationTabs = [
     getLabel: _getLibrariesLabel,
   ),
   NavigationTab(id: NavigationTabId.liveTv, onlineOnly: true, icon: Symbols.live_tv_rounded, getLabel: _getLiveTvLabel),
+  NavigationTab(
+    id: NavigationTabId.explore,
+    onlineOnly: true,
+    icon: Symbols.explore_rounded,
+    getLabel: _getExploreLabel,
+  ),
   NavigationTab(id: NavigationTabId.search, onlineOnly: true, icon: Symbols.search_rounded, getLabel: _getSearchLabel),
   NavigationTab(
     id: NavigationTabId.downloads,

lib/navigation/profile_session_screen.dart

@@ -10,18 +10,22 @@ import '../media/media_server_client.dart';
 import '../profiles/active_profile_provider.dart';
 import '../profiles/plex_home_service.dart';
 import '../profiles/profile_connection_registry.dart';
+import '../providers/catalog_sources_provider.dart';
 import '../providers/companion_remote_provider.dart';
 import '../providers/discover_provider.dart';
+import '../providers/explore_provider.dart';
 import '../providers/hidden_libraries_provider.dart';
 import '../providers/libraries_provider.dart';
 import '../providers/multi_server_provider.dart';
 import '../providers/playback_state_provider.dart';
 import '../providers/trakt_account_provider.dart';
+import '../providers/seerr_account_provider.dart';
 import '../providers/trackers_provider.dart';
 import '../providers/watch_state_store.dart';
 import '../database/app_database.dart';
 import '../screens/main_screen.dart';
 import '../services/api_cache.dart';
+import '../services/catalog/catalog_library_matcher.dart';
 import '../services/music/music_playback_service.dart';
 import '../services/music/music_playback_service_impl.dart';
 import '../services/offline_watch_sync_service.dart';
@@ -143,6 +147,50 @@ class _ProfileSessionScreenState extends State<ProfileSessionScreen> {
                   return provider;
                 },
               ),
+              ChangeNotifierProvider(
+                create: (context) {
+                  final provider = SeerrAccountProvider();
+                  provider.bindPlexTokenSupplier(
+                    buildSeerrPlexTokenSupplier(
+                      activeProfile: context.read<ActiveProfileProvider>(),
+                      connections: context.read<ConnectionRegistry>(),
+                      profileConnections: context.read<ProfileConnectionRegistry>(),
+                    ),
+                  );
+                  unawaited(
+                    provider.onActiveProfileChanged(activeId).catchError((Object e, StackTrace s) {
+                      appLogger.w('Seerr profile hydrate failed', error: e, stackTrace: s);
+                    }),
+                  );
+                  return provider;
+                },
+              ),
+              ChangeNotifierProxyProvider3<
+                TraktAccountProvider,
+                TrackersProvider,
+                SeerrAccountProvider,
+                CatalogSourcesProvider
+              >(
+                create: (context) {
+                  final provider = CatalogSourcesProvider();
+                  unawaited(
+                    provider.onActiveProfileChanged(activeId).catchError((Object e, StackTrace s) {
+                      appLogger.w('Catalog sources profile hydrate failed', error: e, stackTrace: s);
+                    }),
+                  );
+                  return provider;
+                },
+                update: (_, trakt, trackers, seerr, previous) {
+                  final provider = previous ?? CatalogSourcesProvider();
+                  provider.update(trakt, trackers, seerr);
+                  return provider;
+                },
+              ),
+              ChangeNotifierProvider(
+                create: (context) => ExploreProvider(context.read<CatalogSourcesProvider>()),
+                lazy: true,
+              ),
+              Provider(create: (context) => CatalogLibraryMatcher(context.read<MultiServerProvider>()), lazy: true),
               ChangeNotifierProvider(
                 create: (context) =>
                     HiddenLibrariesProvider(storageService: context.read<StorageService>(), profileId: activeId),

lib/providers/catalog_sources_provider.dart

@@ -0,0 +1,137 @@
+import 'package:collection/collection.dart';
+import 'package:flutter/foundation.dart';
+
+import '../mixins/disposable_change_notifier_mixin.dart';
+import '../models/catalog/catalog_item.dart';
+import '../profiles/profile.dart';
+import '../services/base_shared_preferences_service.dart';
+import '../services/catalog/catalog_source.dart';
+import '../services/catalog/mal_catalog_source.dart';
+import '../services/catalog/seerr_catalog_source.dart';
+import '../services/catalog/trakt_catalog_source.dart';
+import '../services/seerr/seerr_client.dart';
+import '../services/trackers/mal/mal_client.dart';
+import '../services/trakt/trakt_client.dart';
+import 'seerr_account_provider.dart';
+import 'trakt_account_provider.dart';
+import 'trackers_provider.dart';
+
+/// Enumerates the connected [CatalogSource]s for the active profile and owns
+/// which one the Explore tab shows.
+///
+/// Profile-scoped; rebuilt through a `ChangeNotifierProxyProvider3` on
+/// [TraktAccountProvider], [TrackersProvider] (MAL), and
+/// [SeerrAccountProvider] so sources appear and
+/// disappear live when a provider is connected or disconnected mid-session
+/// (which also drives the Explore tab's visibility).
+class CatalogSourcesProvider extends ChangeNotifier with DisposableChangeNotifierMixin {
+  static const String _activeSourceBaseKey = 'catalog_active_source';
+
+  TraktCatalogSource? _trakt;
+  TraktClient? _lastTraktClient;
+  MalCatalogSource? _mal;
+  MalClient? _lastMalClient;
+  SeerrCatalogSource? _seerr;
+  SeerrClient? _lastSeerrClient;
+  CatalogSourceId? _preferredSourceId;
+  String _activeUserUuid = '';
+
+  List<CatalogSource> get connectedSources => [?_trakt, ?_mal, ?_seerr];
+
+  bool get hasAnySource => _trakt != null || _mal != null || _seerr != null;
+
+  /// The connected Seerr source, for the request surfaces (detail-screen
+  /// Request action and sheet) that need Seerr's client beyond the
+  /// [CatalogSource] interface.
+  SeerrCatalogSource? get seerrSource => _seerr;
+
+  /// The source whose rows the Explore tab shows: the user's persisted pick
+  /// when it is still connected, otherwise the first connected source.
+  CatalogSource? get activeSource {
+    final sources = connectedSources;
+    return sources.firstWhereOrNull((s) => s.id == _preferredSourceId) ?? sources.firstOrNull;
+  }
+
+  /// The source backing watchlist membership/mutation surfaces (media-detail
+  /// action). Independent of [activeSource] so switching the Explore tab to a
+  /// watchlist-less source (e.g. a future Seerr) keeps the action alive.
+  CatalogSource? get watchlistCapableSource => connectedSources.firstWhereOrNull((s) => s.supportsWatchlist);
+
+  /// All connected sources whose watchlist can be read and mutated, for
+  /// surfaces that offer a choice (media-detail bookmark with several
+  /// providers connected).
+  List<CatalogSource> get watchlistCapableSources => [...connectedSources.where((source) => source.supportsWatchlist)];
+
+  /// The watchlist source catalog-item surfaces (detail screen, card menu)
+  /// must bind to: the item's OWN source — a MAL card toggles the MAL Plan to
+  /// Watch, never another provider's list. An item whose source is connected
+  /// but has no watchlist (Seerr) gets none at all — no falling back to
+  /// another provider's list. The fallback exists only for items whose
+  /// source got disconnected mid-session.
+  CatalogSource? watchlistSourceFor(CatalogItem item) {
+    final own = connectedSources.firstWhereOrNull((s) => s.id == item.source);
+    if (own != null) return own.supportsWatchlist ? own : null;
+    return watchlistCapableSource;
+  }
+
+  /// Hydrate the per-profile active-source preference.
+  Future<void> onActiveProfileChanged(String? userUuid) async {
+    _activeUserUuid = userUuid ?? '';
+    final prefs = await BaseSharedPreferencesService.sharedCache();
+    final raw = prefs.getString(profileScopedPrefsKey(_activeUserUuid, _activeSourceBaseKey));
+    if (isDisposed) return;
+    _preferredSourceId = CatalogSourceId.values.asNameMap()[raw];
+    safeNotifyListeners();
+  }
+
+  Future<void> setActiveSource(CatalogSourceId id) async {
+    if (_preferredSourceId == id) return;
+    _preferredSourceId = id;
+    safeNotifyListeners();
+    final prefs = await BaseSharedPreferencesService.sharedCache();
+    await prefs.setString(profileScopedPrefsKey(_activeUserUuid, _activeSourceBaseKey), id.name);
+  }
+
+  /// Proxy-provider update hook: rebuild a source when its catalog client
+  /// was rebound (connect/disconnect/profile switch).
+  void update(TraktAccountProvider trakt, TrackersProvider trackers, SeerrAccountProvider seerr) {
+    var changed = false;
+
+    final traktClient = trakt.catalogClient;
+    if (!identical(traktClient, _lastTraktClient)) {
+      _lastTraktClient = traktClient;
+      _trakt?.dispose();
+      _trakt = traktClient == null ? null : TraktCatalogSource(traktClient);
+      changed = true;
+    }
+
+    final malClient = trackers.malCatalogClient;
+    if (!identical(malClient, _lastMalClient)) {
+      _lastMalClient = malClient;
+      _mal?.dispose();
+      _mal = malClient == null ? null : MalCatalogSource(malClient);
+      changed = true;
+    }
+
+    final seerrClient = seerr.catalogClient;
+    if (!identical(seerrClient, _lastSeerrClient)) {
+      _lastSeerrClient = seerrClient;
+      _seerr?.dispose();
+      _seerr = seerrClient == null ? null : SeerrCatalogSource(seerrClient);
+      changed = true;
+    }
+
+    if (changed) safeNotifyListeners();
+  }
+
+  @override
+  void dispose() {
+    _trakt?.dispose();
+    _trakt = null;
+    _mal?.dispose();
+    _mal = null;
+    _seerr?.dispose();
+    _seerr = null;
+    super.dispose();
+  }
+}

lib/providers/explore_provider.dart

@@ -0,0 +1,300 @@
+import 'dart:async';
+
+import 'package:flutter/foundation.dart';
+
+import '../i18n/strings.g.dart';
+import '../media/media_hub.dart';
+import '../media/media_item.dart';
+import '../mixins/disposable_change_notifier_mixin.dart';
+import '../services/catalog/catalog_source.dart';
+import '../services/trackers/future_coalescer.dart';
+import '../utils/app_logger.dart';
+import 'catalog_sources_provider.dart';
+
+enum ExploreLoadState { initial, loading, loaded, error }
+
+/// A row of the Explore tab: the catalog row id plus its rendering hub.
+typedef ExploreRowHub = ({CatalogRowId row, MediaHub hub});
+
+/// Owns the Explore tab's data: one [CatalogPage] per row of the active
+/// [CatalogSource], converted to [MediaHub]s so the existing shelf stack
+/// renders them.
+///
+/// Lives inside the profile-keyed provider subtree. Listens to
+/// [CatalogSourcesProvider] for the active source (connect/disconnect/switch)
+/// and to the source's watchlist changes so the Watchlist row stays current
+/// after mutations from anywhere in the app.
+class ExploreProvider extends ChangeNotifier with DisposableChangeNotifierMixin {
+  /// Rows reload when the tab is shown after this long.
+  static const Duration staleAfter = Duration(minutes: 15);
+  static const int rowLimit = 25;
+  static const int viewAllPageLimit = 100;
+  static const int viewAllMaxPages = 3;
+
+  /// Watchlist mutations notify optimistically before the API call finishes;
+  /// the row refetch waits out the burst so it reads settled server state.
+  static const Duration _watchlistRefreshDelay = Duration(seconds: 1);
+
+  ExploreProvider(this._catalogSources) {
+    _catalogSources.addListener(_onSourcesChanged);
+    _source = _catalogSources.activeSource;
+    _source?.watchlistChanges.addListener(_onWatchlistChanged);
+  }
+
+  final CatalogSourcesProvider _catalogSources;
+  CatalogSource? _source;
+
+  Map<CatalogRowId, CatalogPage> _rows = {};
+  ExploreLoadState _state = ExploreLoadState.initial;
+  String? _errorMessage;
+  DateTime? _loadedAt;
+  final FutureCoalescer<void> _loadCoalescer = FutureCoalescer();
+  int _generation = 0;
+  Timer? _watchlistRefreshTimer;
+
+  // Watchlist-row freshness: every membership change bumps the mutation
+  // epoch; a successful row refetch records which epoch it covered. A tab
+  // re-shown with uncovered mutations refetches immediately — the debounced
+  // timer alone can lose the race when the user navigates back quickly.
+  int _watchlistMutationEpoch = 0;
+  int _watchlistRowFetchedEpoch = 0;
+  final FutureCoalescer<void> _watchlistRefreshCoalescer = FutureCoalescer();
+
+  List<ExploreRowHub>? _hubsCache;
+  (int, String)? _hubsCacheKey;
+  int _rowsEpoch = 0;
+
+  CatalogSource? get activeSource => _source;
+
+  ExploreLoadState get state => _state;
+
+  bool get isLoading => _state == ExploreLoadState.initial || _state == ExploreLoadState.loading;
+
+  /// Raw load failure (unlocalized); the screen wraps it for display.
+  String? get errorMessage => _errorMessage;
+
+  /// Non-empty rows of the active source in display order. Memoized on row
+  /// content (and one localized string, so a locale change busts the cache).
+  List<ExploreRowHub> get rowHubs {
+    final source = _source;
+    if (source == null) return const [];
+    final key = (_rowsEpoch, rowTitle(CatalogRowId.watchlist));
+    if (_hubsCache != null && key == _hubsCacheKey) return _hubsCache!;
+    final hubs = <ExploreRowHub>[
+      for (final row in source.supportedRows)
+        if (_rows[row] case final CatalogPage page)
+          if (page.items.isNotEmpty)
+            (
+              row: row,
+              hub: MediaHub(
+                id: 'explore:${source.id.name}:${row.name}',
+                identifier: 'explore.${row.name}',
+                title: rowTitle(row),
+                type: 'mixed',
+                items: [for (final item in page.items) item.toMediaItem()],
+                size: page.items.length,
+                more: page.hasMore,
+              ),
+            ),
+    ];
+    _hubsCache = hubs;
+    _hubsCacheKey = key;
+    return hubs;
+  }
+
+  static String rowTitle(CatalogRowId row) => switch (row) {
+    CatalogRowId.watchlist => t.explore.rows.watchlist,
+    CatalogRowId.recommendedMovies => t.explore.rows.recommendedMovies,
+    CatalogRowId.recommendedShows => t.explore.rows.recommendedShows,
+    CatalogRowId.trendingMovies => t.explore.rows.trendingMovies,
+    CatalogRowId.trendingShows => t.explore.rows.trendingShows,
+    CatalogRowId.popularMovies => t.explore.rows.popularMovies,
+    CatalogRowId.popularShows => t.explore.rows.popularShows,
+    CatalogRowId.suggestedAnime => t.explore.rows.suggestedAnime,
+    CatalogRowId.airingAnime => t.explore.rows.airingAnime,
+    CatalogRowId.popularAnime => t.explore.rows.popularAnime,
+    CatalogRowId.trending => t.explore.rows.trending,
+    CatalogRowId.upcomingMovies => t.explore.rows.upcomingMovies,
+    CatalogRowId.upcomingShows => t.explore.rows.upcomingShows,
+  };
+
+  /// Load if never loaded, after an error, or when the content has gone
+  /// stale. Called on first build and every time the tab is shown.
+  void ensureFresh() {
+    if (_source == null) return;
+    if (_state == ExploreLoadState.initial || _state == ExploreLoadState.error) {
+      unawaited(load());
+      return;
+    }
+    final loadedAt = _loadedAt;
+    if (loadedAt != null && DateTime.now().difference(loadedAt) > staleAfter) {
+      unawaited(load());
+      return;
+    }
+    if (_watchlistRowFetchedEpoch < _watchlistMutationEpoch) {
+      unawaited(_refreshWatchlistRow());
+    }
+  }
+
+  /// Full reload of every supported row (one request per row). Concurrent
+  /// calls coalesce into the in-flight pass; a source switch resets the
+  /// coalescer (see [_onSourcesChanged]) so the new source's load starts
+  /// instead of joining the doomed one.
+  Future<void> load() => _loadCoalescer.run(_loadOnce);
+
+  Future<void> _loadOnce() async {
+    // Yield so a load() kicked off during build can't notify mid-build.
+    await null;
+    if (isDisposed) return;
+    final source = _source;
+    if (source == null) return;
+    final generation = _generation;
+    final mutationEpochAtStart = _watchlistMutationEpoch;
+
+    _state = ExploreLoadState.loading;
+    _errorMessage = null;
+    safeNotifyListeners();
+
+    final rows = source.supportedRows;
+    Object? firstError;
+    final results = await Future.wait([
+      for (final row in rows)
+        source.fetchRow(row, limit: rowLimit).then<CatalogPage?>((page) => page).catchError((Object e) {
+          appLogger.w('Explore: ${source.id.name} row ${row.name} failed', error: e);
+          firstError ??= e;
+          return null;
+        }),
+    ]);
+    if (isDisposed || generation != _generation) return;
+
+    final fetched = <CatalogRowId, CatalogPage>{
+      for (var i = 0; i < rows.length; i++)
+        if (results[i] case final CatalogPage page) rows[i]: page,
+    };
+    // A debounced watchlist-row refresh that landed while this load was in
+    // flight covered later mutations than our page — keep the fresher one.
+    if (_watchlistRowFetchedEpoch > mutationEpochAtStart) {
+      fetched.remove(CatalogRowId.watchlist);
+    }
+
+    if (fetched.isEmpty) {
+      // Nothing succeeded: keep stale rows if any (they beat an error flash),
+      // otherwise surface the failure. A null message falls back to the
+      // localized empty-state text in the screen.
+      if (_rows.isEmpty) {
+        _state = ExploreLoadState.error;
+        _errorMessage = firstError?.toString();
+      } else {
+        _state = ExploreLoadState.loaded;
+      }
+    } else {
+      // Failed rows keep their previous page.
+      _rows = {..._rows, ...fetched};
+      _state = ExploreLoadState.loaded;
+      _loadedAt = DateTime.now();
+      _rowsEpoch++;
+      if (fetched.containsKey(CatalogRowId.watchlist) && mutationEpochAtStart > _watchlistRowFetchedEpoch) {
+        _watchlistRowFetchedEpoch = mutationEpochAtStart;
+      }
+    }
+    // Mutations that landed while the load was in flight aren't reflected in
+    // the page we just stored — schedule the debounced catch-up ourselves
+    // (the mutation-time notification skips rows that aren't loaded yet).
+    if (_rows.containsKey(CatalogRowId.watchlist) && _watchlistRowFetchedEpoch < _watchlistMutationEpoch) {
+      _scheduleWatchlistRefresh();
+    }
+    safeNotifyListeners();
+  }
+
+  /// Full item list for a row's View All grid, paging past the shelf cap.
+  Future<List<MediaItem>> loadAllForRow(CatalogRowId row) async {
+    final source = _source;
+    if (source == null) return const [];
+    final items = <MediaItem>[];
+    var page = 1;
+    while (true) {
+      final res = await source.fetchRow(row, page: page, limit: viewAllPageLimit);
+      items.addAll([for (final item in res.items) item.toMediaItem()]);
+      if (!res.hasMore) break;
+      if (page >= viewAllMaxPages) {
+        appLogger.w('Explore: ${row.name} View All truncated at ${items.length} items ($page pages)');
+        break;
+      }
+      page++;
+    }
+    return items;
+  }
+
+  void _onSourcesChanged() {
+    final next = _catalogSources.activeSource;
+    if (identical(next, _source)) return;
+    _source?.watchlistChanges.removeListener(_onWatchlistChanged);
+    _source = next;
+    _source?.watchlistChanges.addListener(_onWatchlistChanged);
+    _generation++;
+    _watchlistRefreshTimer?.cancel();
+    // Detach any in-flight passes for the old source: their generation guard
+    // already discards their results, but the new source's load must not
+    // coalesce into them (that left the tab stuck on the loading state).
+    _loadCoalescer.reset();
+    _watchlistRefreshCoalescer.reset();
+    _watchlistMutationEpoch = 0;
+    _watchlistRowFetchedEpoch = 0;
+    _rows = {};
+    _loadedAt = null;
+    _errorMessage = null;
+    _state = ExploreLoadState.initial;
+    _rowsEpoch++;
+    safeNotifyListeners();
+    if (next != null) unawaited(load());
+  }
+
+  void _onWatchlistChanged() {
+    // Always bump: a mutation during the initial full load has no row to
+    // patch yet, but the load's completion checks this epoch to catch up.
+    _watchlistMutationEpoch++;
+    if (!_rows.containsKey(CatalogRowId.watchlist)) return;
+    _scheduleWatchlistRefresh();
+  }
+
+  void _scheduleWatchlistRefresh() {
+    _watchlistRefreshTimer?.cancel();
+    _watchlistRefreshTimer = Timer(_watchlistRefreshDelay, () => unawaited(_refreshWatchlistRow()));
+  }
+
+  Future<void> _refreshWatchlistRow() => _watchlistRefreshCoalescer.run(_refreshWatchlistRowOnce);
+
+  Future<void> _refreshWatchlistRowOnce() async {
+    final source = _source;
+    if (source == null || isDisposed) return;
+    final generation = _generation;
+    final coveredEpoch = _watchlistMutationEpoch;
+    try {
+      final page = await source.fetchRow(CatalogRowId.watchlist, limit: rowLimit);
+      if (isDisposed || generation != _generation) return;
+      _rows = {..._rows, CatalogRowId.watchlist: page};
+      _rowsEpoch++;
+      _watchlistRowFetchedEpoch = coveredEpoch;
+      safeNotifyListeners();
+      if (_watchlistMutationEpoch > coveredEpoch) {
+        // Mutations that arrived while this pass was in flight coalesced
+        // into it but aren't reflected in its page — go around once more.
+        _scheduleWatchlistRefresh();
+      } else {
+        // Fully caught up: a still-pending debounce would only refetch the
+        // same state.
+        _watchlistRefreshTimer?.cancel();
+      }
+    } catch (e) {
+      appLogger.w('Explore: watchlist row refresh failed', error: e);
+    }
+  }
+
+  @override
+  void dispose() {
+    _catalogSources.removeListener(_onSourcesChanged);
+    _source?.watchlistChanges.removeListener(_onWatchlistChanged);
+    _watchlistRefreshTimer?.cancel();
+    super.dispose();
+  }
+}

lib/screens/catalog_item_detail_screen.dart

@@ -0,0 +1,453 @@
+import 'dart:async';
+
+import 'package:collection/collection.dart';
+import 'package:flutter/material.dart';
+import 'package:intl/intl.dart';
+import 'package:material_symbols_icons/symbols.dart';
+import 'package:provider/provider.dart';
+
+import '../focus/focusable_action_bar.dart';
+import '../i18n/strings.g.dart';
+import '../media/media_hub.dart';
+import '../media/media_item.dart';
+import '../models/catalog/catalog_cast_member.dart';
+import '../models/catalog/catalog_item.dart';
+import '../providers/catalog_sources_provider.dart';
+import '../services/catalog/catalog_library_matcher.dart';
+import '../services/catalog/catalog_source.dart';
+import '../services/catalog/seerr_catalog_source.dart';
+import '../utils/app_logger.dart';
+import '../utils/desktop_window_padding.dart';
+import '../utils/formatters.dart';
+import '../utils/media_navigation_helper.dart';
+import '../utils/snackbar_helper.dart';
+import '../widgets/app_bar_back_button.dart';
+import '../widgets/app_icon.dart';
+import '../widgets/backend_badge.dart';
+import '../widgets/cast_member_strip.dart';
+import '../widgets/hub_section.dart';
+import '../widgets/optimized_media_image.dart';
+import '../widgets/overlay_sheet.dart';
+import '../widgets/seerr_request_sheet.dart';
+import '../widgets/settings_section.dart';
+import '../widgets/stat_chip.dart';
+
+/// Detail screen for a catalog item (Explore tab). Renders from provider
+/// data — no media server required — and resolves library availability in
+/// place: an "In these libraries" list when the item is owned, tappable
+/// through to the normal media detail screen.
+class CatalogItemDetailScreen extends StatefulWidget {
+  final CatalogItem item;
+
+  const CatalogItemDetailScreen({super.key, required this.item});
+
+  @override
+  State<CatalogItemDetailScreen> createState() => _CatalogItemDetailScreenState();
+}
+
+class _CatalogItemDetailScreenState extends State<CatalogItemDetailScreen> {
+  final _actionBarKey = GlobalKey<FocusableActionBarState>();
+  CatalogSource? _watchlistSource;
+  SeerrCatalogSource? _requestSource;
+  bool _mutatingWatchlist = false;
+
+  /// Library items matching this catalog item; null while resolving.
+  List<MediaItem>? _matches;
+
+  /// Cast/characters from the item's own source; null while loading (the
+  /// section only renders once loaded non-empty).
+  List<CatalogCastMember>? _cast;
+
+  /// "More like this" from the item's own source; null while loading (the
+  /// row only renders once loaded non-empty).
+  List<CatalogItem>? _related;
+
+  @override
+  void initState() {
+    super.initState();
+    unawaited(_resolveMatches());
+    unawaited(_loadCast());
+    unawaited(_loadRelated());
+    final sources = context.read<CatalogSourcesProvider>();
+    _watchlistSource = sources.watchlistSourceFor(widget.item);
+    // Request needs a connected Seerr, the permission for this kind, and a
+    // tmdb id (Trakt items carry one natively; MAL items get theirs from the
+    // Fribb mapping at row time).
+    final seerr = sources.seerrSource;
+    if (seerr != null && widget.item.ids.tmdb != null && seerr.canRequest(widget.item.kind)) {
+      _requestSource = seerr;
+    }
+    final source = _watchlistSource;
+    if (source != null) {
+      source.watchlistChanges.addListener(_onWatchlistChanged);
+      if (source.isOnWatchlist(widget.item.kind, widget.item.ids) == null) {
+        unawaited(source.ensureWatchlistLoaded());
+      }
+    }
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (mounted) _actionBarKey.currentState?.requestFocusOnFirst();
+    });
+  }
+
+  @override
+  void dispose() {
+    _watchlistSource?.watchlistChanges.removeListener(_onWatchlistChanged);
+    super.dispose();
+  }
+
+  void _onWatchlistChanged() {
+    // ignore: no-empty-block - membership state lives in the source
+    setState(() {});
+  }
+
+  Future<void> _resolveMatches() async {
+    try {
+      final matches = await context.read<CatalogLibraryMatcher>().match(widget.item);
+      if (mounted) setState(() => _matches = matches);
+    } catch (e) {
+      appLogger.w('Catalog library match failed for ${widget.item.identityKey}', error: e);
+      if (mounted) setState(() => _matches = const []);
+    }
+  }
+
+  CatalogSource? get _ownSource =>
+      context.read<CatalogSourcesProvider>().connectedSources.firstWhereOrNull((s) => s.id == widget.item.source);
+
+  /// One lazy request against the item's own source; failures just leave the
+  /// section hidden.
+  Future<void> _loadCast() async {
+    final source = _ownSource;
+    if (source == null) return;
+    try {
+      final cast = await source.fetchCast(widget.item);
+      if (mounted) setState(() => _cast = cast);
+    } catch (e) {
+      appLogger.d('Catalog cast load failed for ${widget.item.identityKey}', error: e);
+    }
+  }
+
+  /// One lazy request against the item's own source; failures just leave the
+  /// row hidden.
+  Future<void> _loadRelated() async {
+    final source = _ownSource;
+    if (source == null) return;
+    try {
+      final related = await source.fetchRelated(widget.item);
+      if (mounted) setState(() => _related = related);
+    } catch (e) {
+      appLogger.d('Catalog related load failed for ${widget.item.identityKey}', error: e);
+    }
+  }
+
+  bool? get _isOnWatchlist => _watchlistSource?.isOnWatchlist(widget.item.kind, widget.item.ids);
+
+  Future<void> _toggleWatchlist() async {
+    final source = _watchlistSource;
+    final current = _isOnWatchlist;
+    if (source == null || current == null || _mutatingWatchlist) return;
+    _mutatingWatchlist = true;
+    try {
+      if (current) {
+        await source.removeFromWatchlist(widget.item.kind, widget.item.ids);
+      } else {
+        await source.addToWatchlist(widget.item.kind, widget.item.ids);
+      }
+    } catch (_) {
+      if (mounted) showErrorSnackBar(context, t.explore.watchlistUpdateFailed);
+    } finally {
+      _mutatingWatchlist = false;
+    }
+  }
+
+  /// Library availability, resolved in place: a progress row while the
+  /// matcher runs, "Not in your library" when nothing matched, otherwise an
+  /// "In these libraries" list whose rows open the normal media detail
+  /// screen. Rows are focusable tiles (dpad-safe, background focus effect).
+  Widget _buildLibrarySection(ThemeData theme) {
+    final mutedStyle = theme.textTheme.bodyMedium?.copyWith(color: theme.colorScheme.onSurface.withValues(alpha: 0.5));
+    final matches = _matches;
+
+    if (matches == null) {
+      return Row(
+        children: [
+          const SizedBox(width: 16, height: 16, child: CircularProgressIndicator(strokeWidth: 2)),
+          const SizedBox(width: 10),
+          Text(t.explore.checkingLibrary, style: mutedStyle),
+        ],
+      );
+    }
+
+    if (matches.isEmpty) {
+      return Row(
+        children: [
+          AppIcon(Symbols.info_rounded, fill: 1, size: 18, color: theme.colorScheme.onSurface.withValues(alpha: 0.5)),
+          const SizedBox(width: 8),
+          Text(t.explore.notInLibrary, style: mutedStyle),
+        ],
+      );
+    }
+
+    return Column(
+      crossAxisAlignment: .start,
+      children: [
+        Text(t.explore.inTheseLibraries, style: theme.textTheme.titleMedium),
+        const SizedBox(height: 12),
+        // M3E grouped cards, same row anatomy as the settings/trackers hub:
+        // server-type logo leading, name, chevron trailing. The tiles' native
+        // ink highlight inside SettingsGroup's shaped Material is the d-pad
+        // focus visual.
+        SettingsGroup(
+          margin: EdgeInsets.zero,
+          children: [
+            for (final match in matches)
+              ListTile(
+                leading: BackendBadge(backend: match.backend, size: 24),
+                // Plex matches carry their library title; Jellyfin's
+                // search-based lookup doesn't, so fall back to the server
+                // name alone (the badge already shows the server type).
+                title: Text(match.libraryTitle ?? match.serverName ?? match.backend.name),
+                subtitle: match.libraryTitle != null && match.serverName != null ? Text(match.serverName!) : null,
+                trailing: const AppIcon(Symbols.chevron_right_rounded, fill: 1),
+                onTap: () => unawaited(navigateToMediaItemDetails(context, match)),
+              ),
+          ],
+        ),
+      ],
+    );
+  }
+
+  String get _metaLine {
+    final item = widget.item;
+    final parts = <String>[
+      if (item.year != null) '${item.year}',
+      if (item.runtimeMinutes != null) formatDurationTextual(Duration(minutes: item.runtimeMinutes!).inMilliseconds),
+      if (item.certification != null && item.certification!.isNotEmpty) item.certification!,
+    ];
+    return parts.join(' • ');
+  }
+
+  static String _statusLabel(CatalogAirStatus status) => switch (status) {
+    CatalogAirStatus.airing => t.explore.status.airing,
+    CatalogAirStatus.ended => t.explore.status.ended,
+    CatalogAirStatus.canceled => t.explore.status.canceled,
+    CatalogAirStatus.upcoming => t.explore.status.upcoming,
+  };
+
+  /// Score (with a compact vote count), airing status, episode count, and
+  /// network/studio — all data that rode along on the row fetch.
+  Widget? _buildStatsChips(ThemeData theme) {
+    final item = widget.item;
+    String? score;
+    if (item.rating != null) {
+      score = item.rating!.toStringAsFixed(1);
+      if (item.votes != null && item.votes! > 0) {
+        final compactVotes = NumberFormat.compact(locale: LocaleSettings.currentLocale.languageCode);
+        score = '$score (${compactVotes.format(item.votes)})';
+      }
+    }
+    final chips = <Widget>[
+      if (score != null) StatChip(icon: Symbols.star_rounded, iconColor: Colors.amber, label: score),
+      if (item.airStatus != null) StatChip(label: _statusLabel(item.airStatus!)),
+      if (item.episodeCount != null) StatChip(label: t.explore.episodeCount(n: item.episodeCount!)),
+      if (item.network != null) StatChip(label: item.network!),
+    ];
+    if (chips.isEmpty) return null;
+    return Wrap(spacing: 8, runSpacing: 8, children: chips);
+  }
+
+  /// Horizontal cast strip — the same [CastMemberStrip] cards as the media
+  /// detail screen. Trakt serves actors with their character; MAL serves
+  /// characters with their role, so the section is titled accordingly.
+  Widget _buildCastSection(ThemeData theme, List<CatalogCastMember> cast) {
+    return Column(
+      crossAxisAlignment: .start,
+      children: [
+        Text(
+          widget.item.source == CatalogSourceId.mal ? t.explore.characters : t.explore.cast,
+          style: theme.textTheme.titleMedium,
+        ),
+        const SizedBox(height: 4),
+        CastMemberStrip(
+          members: [
+            for (final member in cast) (name: member.name, secondary: member.secondary, imagePath: member.imageUrl),
+          ],
+        ),
+      ],
+    );
+  }
+
+  /// "More like this" from the item's own source, rendered through the
+  /// standard shelf so cards, long-press menus, and taps behave exactly like
+  /// the Explore rows (tap opens another catalog detail screen).
+  Widget _buildRelatedSection(List<CatalogItem> related) {
+    return HubSection(
+      hub: MediaHub(
+        id: 'catalog-related:${widget.item.source.name}:${widget.item.identityKey}',
+        identifier: 'explore.related',
+        title: t.discover.moreLikeThis,
+        type: 'mixed',
+        items: [for (final item in related) item.toMediaItem()],
+        size: related.length,
+      ),
+      icon: Symbols.recommend_rounded,
+      inset: true,
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final item = widget.item;
+    final theme = Theme.of(context);
+    final onWatchlist = _isOnWatchlist;
+
+    final viewInsets = MediaQuery.paddingOf(context);
+    // The request sheet uses OverlaySheetController.showAdaptive; the host
+    // keeps it dpad-safe on TV, and canPop opts into its PopScope so a
+    // system back closes an open sheet instead of popping this screen.
+    return OverlaySheetHost(
+      canPop: true,
+      child: Scaffold(
+        body: Stack(
+          children: [
+            SingleChildScrollView(
+              // The backdrop lives inside the scrollable so it moves with
+              // the content (it extends under the status bar, so the safe
+              // areas are baked into the content padding instead of a
+              // SafeArea around the scroll view).
+              child: Stack(
+                children: [
+                  if (item.backdropUrl != null)
+                    Positioned(
+                      top: 0,
+                      left: 0,
+                      right: 0,
+                      height: 320,
+                      child: ShaderMask(
+                        shaderCallback: (rect) => LinearGradient(
+                          begin: Alignment.topCenter,
+                          end: Alignment.bottomCenter,
+                          colors: [Colors.black, Colors.black.withValues(alpha: 0.0)],
+                          stops: const [0.3, 1.0],
+                        ).createShader(rect),
+                        blendMode: BlendMode.dstIn,
+                        child: OptimizedMediaImage.thumb(
+                          imagePath: item.backdropUrl,
+                          width: double.infinity,
+                          height: 320,
+                          fit: BoxFit.cover,
+                          fallbackIcon: null,
+                        ),
+                      ),
+                    ),
+                  Padding(
+                    padding: EdgeInsets.fromLTRB(24, viewInsets.top + 120, 24, viewInsets.bottom + 32),
+                    child: Column(
+                      crossAxisAlignment: .start,
+                      children: [
+                        Row(
+                          crossAxisAlignment: .start,
+                          children: [
+                            ClipRRect(
+                              borderRadius: BorderRadius.circular(12),
+                              child: OptimizedMediaImage.poster(imagePath: item.posterUrl, width: 140, height: 210),
+                            ),
+                            const SizedBox(width: 20),
+                            Expanded(
+                              child: Column(
+                                crossAxisAlignment: .start,
+                                children: [
+                                  Text(
+                                    item.title,
+                                    style: theme.textTheme.headlineMedium,
+                                    maxLines: 3,
+                                    overflow: .ellipsis,
+                                  ),
+                                  if (_metaLine.isNotEmpty) ...[
+                                    const SizedBox(height: 8),
+                                    Text(
+                                      _metaLine,
+                                      style: theme.textTheme.bodyMedium?.copyWith(
+                                        color: theme.colorScheme.onSurface.withValues(alpha: 0.7),
+                                      ),
+                                    ),
+                                  ],
+                                  if (item.genres?.isNotEmpty ?? false) ...[
+                                    const SizedBox(height: 8),
+                                    Text(
+                                      item.genres!.join(' • '),
+                                      style: theme.textTheme.bodySmall?.copyWith(
+                                        color: theme.colorScheme.onSurface.withValues(alpha: 0.6),
+                                      ),
+                                    ),
+                                  ],
+                                  const SizedBox(height: 16),
+                                  if (_watchlistSource != null || _requestSource != null)
+                                    FocusableActionBar(
+                                      key: _actionBarKey,
+                                      actions: [
+                                        if (_watchlistSource != null)
+                                          FocusableAction(
+                                            icon: onWatchlist ?? false
+                                                ? Symbols.bookmark_added_rounded
+                                                : Symbols.bookmark_add_rounded,
+                                            tooltip: onWatchlist ?? false
+                                                ? t.explore.removeFromWatchlist
+                                                : t.explore.addToWatchlist,
+                                            onPressed: onWatchlist == null
+                                                ? () {}
+                                                : () => unawaited(_toggleWatchlist()),
+                                          ),
+                                        if (_requestSource case final SeerrCatalogSource seerr)
+                                          FocusableAction(
+                                            icon: Symbols.download_rounded,
+                                            tooltip: t.seerr.request,
+                                            onPressed: () => unawaited(
+                                              showSeerrRequestSheet(
+                                                context,
+                                                source: seerr,
+                                                kind: item.kind,
+                                                tmdbId: item.ids.tmdb!,
+                                                title: item.title,
+                                              ),
+                                            ),
+                                          ),
+                                      ],
+                                    ),
+                                ],
+                              ),
+                            ),
+                          ],
+                        ),
+                        if (_buildStatsChips(theme) case final Widget chips) ...[const SizedBox(height: 20), chips],
+                        const SizedBox(height: 24),
+                        if (item.overview != null) Text(item.overview!, style: theme.textTheme.bodyLarge),
+                        const SizedBox(height: 24),
+                        _buildLibrarySection(theme),
+                        if (_cast case final List<CatalogCastMember> cast when cast.isNotEmpty) ...[
+                          const SizedBox(height: 28),
+                          _buildCastSection(theme, cast),
+                        ],
+                        if (_related case final List<CatalogItem> related when related.isNotEmpty) ...[
+                          const SizedBox(height: 20),
+                          _buildRelatedSection(related),
+                        ],
+                      ],
+                    ),
+                  ),
+                ],
+              ),
+            ),
+            Positioned(
+              top: 0,
+              left: 0,
+              child: DesktopAppBarHelper.buildAdjustedLeading(
+                const AppBarBackButton(style: BackButtonStyle.circular),
+                context: context,
+              )!,
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/screens/catalog_search_screen.dart

@@ -0,0 +1,124 @@
+import 'package:flutter/material.dart';
+import 'package:material_symbols_icons/symbols.dart';
+
+import '../focus/focusable_text_field.dart';
+import '../i18n/strings.g.dart';
+import '../media/media_item.dart';
+import '../mixins/debounced_media_search.dart';
+import '../services/catalog/catalog_source.dart';
+import '../utils/focus_utils.dart';
+import '../utils/platform_detector.dart';
+import '../widgets/app_icon.dart';
+import '../widgets/focusable_media_card.dart';
+import '../widgets/focused_scroll_scaffold.dart';
+import '../widgets/loading_indicator_box.dart';
+import '../widgets/pill_input_decoration.dart';
+import 'libraries/state_messages.dart';
+
+/// Free-text search of one catalog source (the Explore tab's active source),
+/// pushed from the Explore app bar. Results are catalog items rendered
+/// through the synthesized-MediaItem card stack, so taps land on the catalog
+/// detail screen with library matching, exactly like the Explore rows.
+class CatalogSearchScreen extends StatefulWidget {
+  final CatalogSource source;
+
+  const CatalogSearchScreen({super.key, required this.source});
+
+  @override
+  State<CatalogSearchScreen> createState() => _CatalogSearchScreenState();
+}
+
+class _CatalogSearchScreenState extends State<CatalogSearchScreen> with DebouncedMediaSearch {
+  @override
+  String get searchDebugLabel => 'CatalogSearch';
+
+  @override
+  Future<List<MediaItem>> performSearchQuery(String query) async {
+    final items = await widget.source.search(query);
+    return [for (final item in items) item.toMediaItem()];
+  }
+
+  @override
+  void initState() {
+    super.initState();
+    FocusUtils.requestFocusAfterBuild(this, searchFocusNode);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final sourceName = widget.source.displayName;
+    return FocusedScrollScaffold(
+      title: Text(t.explore.searchHint(source: sourceName)),
+      slivers: [
+        SliverToBoxAdapter(
+          child: Padding(
+            padding: const EdgeInsets.only(left: 16, right: 16, bottom: 16),
+            child: FocusableTextField(
+              controller: searchController,
+              focusNode: searchFocusNode,
+              textInputAction: TextInputAction.search,
+              onNavigateDown: searchResults.isNotEmpty && !isSearching ? firstResultFocusNode.requestFocus : null,
+              onEditingComplete: PlatformDetector.isTV() ? handleSearchSubmit : null,
+              decoration: pillInputDecoration(
+                context,
+                hintText: t.explore.searchHint(source: sourceName),
+                prefixIcon: const AppIcon(Symbols.search_rounded, fill: 1),
+                suffixIcon: searchController.text.isNotEmpty
+                    ? IconButton(icon: const AppIcon(Symbols.clear_rounded, fill: 1), onPressed: searchController.clear)
+                    : null,
+              ),
+            ),
+          ),
+        ),
+        if (isSearching)
+          LoadingIndicatorBox.sliver
+        else if (!hasSearched)
+          SliverFillRemaining(
+            child: StateMessageWidget(
+              message: t.explore.searchPrompt(source: sourceName),
+              icon: Symbols.search_rounded,
+              iconSize: 80,
+            ),
+          )
+        else if (lastSearchFailed)
+          SliverFillRemaining(
+            child: StateMessageWidget(message: t.explore.searchFailed, icon: Symbols.error_rounded, iconSize: 80),
+          )
+        else if (searchResults.isEmpty)
+          SliverFillRemaining(
+            child: StateMessageWidget(
+              message: t.explore.searchEmpty(query: lastSearchedQuery),
+              icon: Symbols.search_off_rounded,
+              iconSize: 80,
+            ),
+          )
+        else
+          _buildResultsList(),
+      ],
+    );
+  }
+
+  Widget _buildResultsList() {
+    return SliverPadding(
+      padding: const EdgeInsets.all(16),
+      sliver: SliverList(
+        delegate: SliverChildBuilderDelegate(
+          (context, index) {
+            final item = searchResults[index];
+            return FocusableMediaCard(
+              key: Key(item.globalKey),
+              item: item,
+              forceListMode: true,
+              disableScale: true,
+              focusNode: index == 0 ? firstResultFocusNode : null,
+              onNavigateUp: index == 0 ? searchFocusNode.requestFocus : null,
+            );
+          },
+          childCount: searchResults.length,
+          addAutomaticKeepAlives: false,
+          addSemanticIndexes: false,
+        ),
+      ),
+    );
+  }
+}

lib/screens/explore_screen.dart

@@ -0,0 +1,388 @@
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:material_symbols_icons/symbols.dart';
+import 'package:provider/provider.dart';
+
+import '../focus/focusable_action_bar.dart';
+import '../i18n/strings.g.dart';
+import '../media/ids.dart';
+import '../media/media_hub.dart';
+import '../media/media_item.dart';
+import '../mixins/refreshable.dart';
+import '../mixins/tab_visibility_aware.dart';
+import '../models/catalog/catalog_item.dart';
+import '../navigation/main_screen_scope.dart';
+import '../providers/catalog_sources_provider.dart';
+import '../providers/explore_provider.dart';
+import '../services/catalog/catalog_source.dart';
+import '../services/settings_service.dart';
+import '../utils/layout_constants.dart';
+import '../utils/platform_detector.dart';
+import '../utils/provider_extensions.dart';
+import '../widgets/app_icon.dart';
+import '../widgets/app_menu.dart';
+import '../widgets/catalog_source_logo.dart';
+import '../widgets/desktop_app_bar.dart';
+import '../widgets/hub_section.dart';
+import '../widgets/settings_builder.dart';
+import '../widgets/tv_browse_rail.dart';
+import '../widgets/tv_spotlight_background.dart';
+import 'catalog_search_screen.dart';
+import 'libraries/state_messages.dart';
+
+/// The Explore tab: watchlist + discover rows from the active external
+/// catalog source (Trakt). Only mounted when a source is connected (the tab
+/// is hidden otherwise, see [NavigationTab.getVisibleTabs]).
+class ExploreScreen extends StatefulWidget {
+  const ExploreScreen({super.key});
+
+  @override
+  State<ExploreScreen> createState() => ExploreScreenState();
+}
+
+class ExploreScreenState extends State<ExploreScreen>
+    with Refreshable, FullRefreshable, TabVisibilityAware, FocusableTab {
+  late ExploreProvider _explore;
+
+  /// Per-row focus keys, keyed by hub id so focus memory survives reloads.
+  final Map<String, GlobalKey<HubSectionState>> _hubKeysById = {};
+  List<GlobalKey<HubSectionState>> _orderedHubKeys = const [];
+  final _actionBarKey = GlobalKey<FocusableActionBarState>();
+
+  // TV spotlight layout (mirrors LibraryRecommendedTab's rail + backdrop).
+  final _tvBrowseRailKey = GlobalKey<TvBrowseRailState>();
+  final ValueNotifier<MediaItem?> _spotlightItem = ValueNotifier(null);
+
+  @override
+  void initState() {
+    super.initState();
+    _explore = context.read<ExploreProvider>();
+    _explore.ensureFresh();
+  }
+
+  @override
+  void refresh() {
+    _explore.ensureFresh();
+  }
+
+  @override
+  void fullRefresh() {
+    unawaited(_explore.load());
+  }
+
+  @override
+  void onTabShown() {
+    _explore.ensureFresh();
+  }
+
+  @override
+  void onTabHidden() {}
+
+  @override
+  void dispose() {
+    _spotlightItem.dispose();
+    super.dispose();
+  }
+
+  @override
+  void focusActiveTabIfReady() {
+    if (PlatformDetector.isTV()) {
+      _tvBrowseRailKey.currentState?.requestFocus();
+      return;
+    }
+    _orderedHubKeys.firstOrNull?.currentState?.requestFocusFromMemory();
+  }
+
+  void _setSpotlightItem(MediaItem item) {
+    _spotlightItem.value = item;
+  }
+
+  MediaItem? _effectiveSpotlightItem(List<ExploreRowHub> rowHubs) {
+    final current = _spotlightItem.value;
+    if (current != null) {
+      for (final rowHub in rowHubs) {
+        if (rowHub.hub.items.any((item) => item.id == current.id)) return current;
+      }
+    }
+    return rowHubs.firstOrNull?.hub.items.firstOrNull;
+  }
+
+  void _updateHubKeys(List<ExploreRowHub> rowHubs) {
+    final liveIds = <String>{for (final rowHub in rowHubs) rowHub.hub.id};
+    _hubKeysById.removeWhere((id, _) => !liveIds.contains(id));
+    _orderedHubKeys = [
+      for (final rowHub in rowHubs) _hubKeysById.putIfAbsent(rowHub.hub.id, GlobalKey<HubSectionState>.new),
+    ];
+  }
+
+  bool _handleVerticalNavigation(int hubIndex, bool isUp) {
+    final keys = _orderedHubKeys;
+    if (keys.isEmpty) return false;
+
+    if (isUp && hubIndex == 0) {
+      _actionBarKey.currentState?.requestFocusOnFirst();
+      return true;
+    }
+
+    final targetIndex = isUp ? hubIndex - 1 : hubIndex + 1;
+    // At a boundary, consume the event so focus can't escape the rows.
+    if (targetIndex < 0 || targetIndex >= keys.length) return true;
+    keys[targetIndex].currentState?.requestFocusFromMemory();
+    return true;
+  }
+
+  void _navigateToSidebar() {
+    MainScreenFocusScope.of(context, listen: false)?.focusSidebar();
+  }
+
+  static IconData _rowIcon(CatalogRowId row) => switch (row) {
+    CatalogRowId.watchlist => Symbols.bookmark_rounded,
+    CatalogRowId.recommendedMovies ||
+    CatalogRowId.recommendedShows ||
+    CatalogRowId.suggestedAnime => Symbols.thumb_up_rounded,
+    CatalogRowId.trendingMovies ||
+    CatalogRowId.trendingShows ||
+    CatalogRowId.airingAnime ||
+    CatalogRowId.trending => Symbols.trending_up_rounded,
+    CatalogRowId.popularMovies || CatalogRowId.popularShows || CatalogRowId.popularAnime => Symbols.whatshot_rounded,
+    CatalogRowId.upcomingMovies || CatalogRowId.upcomingShows => Symbols.event_upcoming_rounded,
+  };
+
+  /// App-bar title: the active source name, as a switcher dropdown when more
+  /// than one source is connected (mirrors the libraries dropdown).
+  Widget _buildTitle(CatalogSourcesProvider sources) {
+    final active = sources.activeSource;
+    if (active == null) return Text(t.explore.title);
+    if (sources.connectedSources.length < 2) {
+      return Text(active.displayName);
+    }
+    return AppMenuButton<CatalogSourceId>(
+      tooltip: t.explore.selectSource,
+      onSelected: (id) => unawaited(sources.setActiveSource(id)),
+      entriesBuilder: (context) => [
+        for (final source in sources.connectedSources)
+          AppMenuItem<CatalogSourceId>(
+            value: source.id,
+            leading: CatalogSourceLogo(source.id),
+            label: source.displayName,
+            selected: source.id == active.id,
+          ),
+      ],
+      child: Container(
+        padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
+        child: Row(
+          mainAxisSize: .min,
+          children: [
+            CatalogSourceLogo(active.id, size: 22),
+            const SizedBox(width: 8),
+            Text(active.displayName, style: Theme.of(context).textTheme.titleLarge),
+            const SizedBox(width: 4),
+            const AppIcon(Symbols.arrow_drop_down_rounded, fill: 1, size: 24),
+          ],
+        ),
+      ),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final explore = context.watch<ExploreProvider>();
+    final sources = context.watch<CatalogSourcesProvider>();
+    final rowHubs = explore.rowHubs;
+    _updateHubKeys(rowHubs);
+
+    // One header mode for every state. Flipping floating/pinned between the
+    // loading/empty scroll view and the content scroll view swaps the
+    // SliverPersistentHeader variant (a different element type), which
+    // reparents the GlobalKey'd action bar into a header that builds its
+    // children during performLayout — and if a tooltip overlay is showing at
+    // that moment (hover on refresh/search), its OverlayPortal re-activation
+    // mutates the render tree mid-layout and asserts. Floating behaves
+    // identically to pinned over the non-scrolling state widgets, so nothing
+    // is lost by unifying.
+    Widget appBar() => DesktopSliverAppBar(
+      title: _buildTitle(sources),
+      pinned: false,
+      floating: true,
+      snap: true,
+      backgroundColor: Theme.of(context).scaffoldBackgroundColor,
+      surfaceTintColor: Colors.transparent,
+      shadowColor: Colors.transparent,
+      scrolledUnderElevation: 0,
+      actions: [
+        FocusableActionBar(
+          key: _actionBarKey,
+          onNavigateDown: () => _orderedHubKeys.firstOrNull?.currentState?.requestFocusFromMemory(),
+          actions: [
+            if (sources.activeSource case final CatalogSource source)
+              FocusableAction(
+                icon: Symbols.search_rounded,
+                tooltip: t.common.search,
+                onPressed: () => Navigator.of(
+                  context,
+                ).push(MaterialPageRoute<void>(builder: (_) => CatalogSearchScreen(source: source))),
+              ),
+            FocusableAction(
+              icon: Symbols.refresh_rounded,
+              tooltip: t.common.refresh,
+              onPressed: () => unawaited(_explore.load()),
+            ),
+          ],
+        ),
+      ],
+    );
+
+    Widget buildSimpleScroll({required Widget body}) {
+      return CustomScrollView(
+        // Android clamping physics won't start a drag on non-filling
+        // content, killing pull-to-refresh in the loading/empty/error
+        // states without this.
+        physics: const AlwaysScrollableScrollPhysics(),
+        slivers: [
+          appBar(),
+          SliverFillRemaining(child: body),
+        ],
+      );
+    }
+
+    Widget content;
+    if (rowHubs.isEmpty && explore.isLoading) {
+      content = buildSimpleScroll(body: const Center(child: CircularProgressIndicator()));
+    } else if (rowHubs.isEmpty && explore.state == ExploreLoadState.error) {
+      content = buildSimpleScroll(
+        body: ErrorStateWidget(
+          message: explore.errorMessage ?? t.explore.emptyTitle,
+          icon: Symbols.error_outline_rounded,
+          onRetry: () => unawaited(_explore.load()),
+        ),
+      );
+    } else if (rowHubs.isEmpty) {
+      content = buildSimpleScroll(
+        body: EmptyStateWidget(
+          message: t.explore.emptyMessage(source: explore.activeSource?.displayName ?? ''),
+          icon: Symbols.explore_rounded,
+        ),
+      );
+    } else if (PlatformDetector.isTV()) {
+      return SettingsBuilder(
+        prefs: const [SettingsService.hideSpoilers, SettingsService.libraryDensity, SettingsService.episodePosterMode],
+        builder: (context) => _buildTvContent(rowHubs),
+      );
+    } else {
+      content = CustomScrollView(
+        physics: const AlwaysScrollableScrollPhysics(),
+        slivers: [
+          appBar(),
+          for (var i = 0; i < rowHubs.length; i++)
+            SliverToBoxAdapter(
+              child: HubSection(
+                key: _orderedHubKeys[i],
+                hub: rowHubs[i].hub,
+                icon: _rowIcon(rowHubs[i].row),
+                loadMoreItems: rowHubs[i].hub.more ? () => _explore.loadAllForRow(rowHubs[i].row) : null,
+                onVerticalNavigation: (isUp) => _handleVerticalNavigation(i, isUp),
+                onNavigateUp: i == 0 ? () => _actionBarKey.currentState?.requestFocusOnFirst() : null,
+                onNavigateToSidebar: _navigateToSidebar,
+              ),
+            ),
+          const SliverToBoxAdapter(child: SizedBox(height: 16)),
+        ],
+      );
+    }
+
+    return Scaffold(
+      body: RefreshIndicator(onRefresh: _explore.load, child: content),
+    );
+  }
+
+  CatalogRowId? _rowForHub(MediaHub hub) {
+    for (final rowHub in _explore.rowHubs) {
+      if (rowHub.hub.id == hub.id) return rowHub.row;
+    }
+    return null;
+  }
+
+  Widget _buildTvContent(List<ExploreRowHub> rowHubs) {
+    final tvHubs = [for (final rowHub in rowHubs) rowHub.hub];
+    final size = MediaQuery.sizeOf(context);
+    final theme = Theme.of(context);
+    final svc = SettingsService.instance;
+    final scale = TvLayoutConstants.scaleForSize(size);
+    final railSize = MainScreenFocusScope.foregroundSizeOf(context);
+    final fullBleedWidth = MainScreenFocusScope.fullBleedWidthOf(context);
+    final railHeight = TvBrowseRailLayout.estimateHeight(
+      size: railSize,
+      hubs: tvHubs,
+      density: svc.read(SettingsService.libraryDensity),
+      episodePosterMode: svc.read(SettingsService.episodePosterMode),
+      fullCardLayout: svc.read(SettingsService.tvFullCardLayout),
+      tallPosterScale: TvBrowseRailLayout.compactTallPosterScale,
+    );
+    final spotlightTop = (size.height * 0.075).clamp(64.0 * scale, 120.0 * scale).toDouble();
+    final minimumSpotlightBottom = railHeight + (8 * scale);
+    final baseSpotlightBottom = (size.height * 0.48).clamp(160.0, 820.0).toDouble();
+    final desiredSpotlightBottom = minimumSpotlightBottom > baseSpotlightBottom
+        ? minimumSpotlightBottom
+        : baseSpotlightBottom;
+    final maxSpotlightBottom = (size.height - spotlightTop - (96 * scale)).clamp(0.0, double.infinity).toDouble();
+    final spotlightBottom = desiredSpotlightBottom > maxSpotlightBottom ? maxSpotlightBottom : desiredSpotlightBottom;
+    final spotlightLeft = (24 * scale).clamp(18.0, 40.0).toDouble();
+
+    return Material(
+      color: theme.scaffoldBackgroundColor,
+      child: SizedBox.expand(
+        child: Stack(
+          fit: StackFit.expand,
+          clipBehavior: Clip.none,
+          children: [
+            Builder(
+              builder: (context) {
+                final foregroundLeft = MainScreenFocusScope.foregroundLeftOf(context);
+                return SideNavigationBleedBuilder(
+                  targetBleed: foregroundLeft,
+                  child: ValueListenableBuilder<MediaItem?>(
+                    valueListenable: _spotlightItem,
+                    builder: (context, _, _) {
+                      final spotlight = _effectiveSpotlightItem(rowHubs);
+                      return TvSpotlightBackground(
+                        item: spotlight,
+                        client: context.tryGetMediaClientForServer(serverIdOrNull(spotlight?.serverId)),
+                        hideSpoilers: svc.read(SettingsService.hideSpoilers),
+                        contentTop: spotlightTop,
+                        contentBottom: spotlightBottom,
+                        contentLeft: spotlightLeft + foregroundLeft,
+                        compact: true,
+                        showPrimaryAction: false,
+                      );
+                    },
+                  ),
+                  builder: (context, animatedBleed, child) =>
+                      Positioned(top: 0, bottom: 0, left: -animatedBleed, width: fullBleedWidth, child: child!),
+                );
+              },
+            ),
+            Positioned(
+              left: 0,
+              right: 0,
+              bottom: 0,
+              child: TvBrowseRail(
+                key: _tvBrowseRailKey,
+                hubs: tvHubs,
+                iconForHub: (hub, _) => _rowIcon(_rowForHub(hub) ?? CatalogRowId.watchlist),
+                onFocusedItemChanged: _setSpotlightItem,
+                loadMoreItems: (hub) {
+                  final row = _rowForHub(hub);
+                  return row == null ? Future.value(hub.items) : _explore.loadAllForRow(row);
+                },
+                onNavigateToSidebar: _navigateToSidebar,
+                onBack: _navigateToSidebar,
+                tallPosterScale: TvBrowseRailLayout.compactTallPosterScale,
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/screens/hub_detail_screen.dart

@@ -1,4 +1,5 @@
 import 'dart:async';
+import '../media/catalog_item_ref.dart';
 import '../media/ids.dart';
 
 import 'package:flutter/material.dart';
@@ -169,10 +170,16 @@ class _HubDetailScreenState extends State<HubDetailScreen>
     }
   }
 
+  /// Catalog hubs (Explore View All) hold synthesized items with no library
+  /// timestamps, so a Date Added sort would silently no-op — offer only the
+  /// fields those items carry.
+  bool get _isCatalogHub => widget.hub.items.firstOrNull?.isCatalogItem ?? false;
+
   List<MediaSort> _getDefaultSortOptions() {
     return [
       MediaSort(key: 'titleSort', title: t.hubDetail.title, defaultDirection: 'asc'),
       MediaSort(key: 'year', descKey: 'year:desc', title: t.hubDetail.releaseYear, defaultDirection: 'desc'),
+      if (!_isCatalogHub)
         MediaSort(key: 'addedAt', descKey: 'addedAt:desc', title: t.hubDetail.dateAdded, defaultDirection: 'desc'),
       MediaSort(key: 'rating', descKey: 'rating:desc', title: t.hubDetail.rating, defaultDirection: 'desc'),
     ];

lib/screens/main_screen.dart

@@ -33,6 +33,7 @@ import '../profiles/active_profile_binder.dart';
 import '../connection/connection_registry.dart';
 import '../profiles/active_profile_provider.dart';
 import '../profiles/plex_home_service.dart';
+import '../providers/catalog_sources_provider.dart';
 import '../providers/download_provider.dart';
 import '../providers/multi_server_provider.dart';
 import '../providers/hidden_libraries_provider.dart';
@@ -55,6 +56,7 @@ import '../widgets/side_navigation_rail.dart';
 import '../focus/dpad_navigator.dart';
 import '../focus/key_event_utils.dart';
 import 'discover_screen.dart';
+import 'explore_screen.dart';
 import 'libraries/library_quick_picker_sheet.dart';
 import 'libraries/libraries_screen.dart';
 import 'livetv/live_tv_screen.dart';
@@ -202,8 +204,10 @@ class _MainScreenState extends State<MainScreen>
 
   OfflineModeProvider? _offlineModeProvider;
   MultiServerProvider? _multiServerProvider;
+  CatalogSourcesProvider? _catalogSourcesProvider;
   RouteObserver<PageRoute<dynamic>>? _profileRouteObserver;
   bool _lastHasLiveTv = false;
+  bool _lastHasExplore = false;
 
   /// Whether a reconnection attempt is in progress
   bool _isReconnecting = false;
@@ -218,6 +222,7 @@ class _MainScreenState extends State<MainScreen>
 
   late List<Widget> _screens;
   final GlobalKey<State<DiscoverScreen>> _discoverKey = GlobalKey();
+  final GlobalKey<State<ExploreScreen>> _exploreKey = GlobalKey();
   final GlobalKey<State<LibrariesScreen>> _librariesKey = GlobalKey();
   final GlobalKey<State<LiveTvScreen>> _liveTvKey = GlobalKey();
   final GlobalKey<State<SearchScreen>> _searchKey = GlobalKey();
@@ -299,6 +304,11 @@ class _MainScreenState extends State<MainScreen>
     } catch (_) {
       _lastHasLiveTv = false;
     }
+    try {
+      _lastHasExplore = context.read<CatalogSourcesProvider>().hasAnySource;
+    } catch (_) {
+      _lastHasExplore = false;
+    }
     _currentTab = _defaultTabForMode(_isOffline);
     _lastOnlineTabId = _isOffline ? null : NavigationTabId.discover;
     _autoSwitchedToDownloads = _isOffline && _currentTab == NavigationTabId.downloads;
@@ -745,6 +755,15 @@ class _MainScreenState extends State<MainScreen>
       _multiServerProvider!.addListener(_handleLiveTvChanged);
     }
 
+    // Listen for catalog sources (Explore tab) appearing/disappearing when a
+    // provider like Trakt is connected or disconnected mid-session.
+    final catalogSources = context.read<CatalogSourcesProvider>();
+    if (catalogSources != _catalogSourcesProvider) {
+      _catalogSourcesProvider?.removeListener(_handleCatalogSourcesChanged);
+      _catalogSourcesProvider = catalogSources;
+      _catalogSourcesProvider!.addListener(_handleCatalogSourcesChanged);
+    }
+
     // Wire up Companion Remote command routing (host devices only, once)
     if (!_companionRemoteSetup && PlatformDetector.shouldActAsRemoteHost(context)) {
       _companionRemoteSetup = true;
@@ -823,6 +842,7 @@ class _MainScreenState extends State<MainScreen>
     }
     _offlineModeProvider?.removeListener(_handleOfflineStatusChanged);
     _multiServerProvider?.removeListener(_handleLiveTvChanged);
+    _catalogSourcesProvider?.removeListener(_handleCatalogSourcesChanged);
     if (_bindingSettleListener != null) {
       _activeProfileForListener?.removeListener(_bindingSettleListener!);
     }
@@ -912,6 +932,7 @@ class _MainScreenState extends State<MainScreen>
       for (final tab in _getVisibleTabs(offline))
         switch (tab.id) {
           NavigationTabId.discover => DiscoverScreen(key: _discoverKey),
+          NavigationTabId.explore => ExploreScreen(key: _exploreKey),
           NavigationTabId.libraries => LibrariesScreen(
             key: _librariesKey,
             onLibraryOrderChanged: _onLibraryOrderChanged,
@@ -936,6 +957,7 @@ class _MainScreenState extends State<MainScreen>
   NavigationTabId _defaultTabForMode(bool isOffline) => NavigationTab.resolveDefaultTab(
     isOffline: isOffline,
     hasLiveTv: _hasLiveTv,
+    hasExplore: _lastHasExplore,
     preferredStartup: SettingsService.instanceOrNull?.read(SettingsService.startupSection),
   );
 
@@ -994,6 +1016,20 @@ class _MainScreenState extends State<MainScreen>
     }
   }
 
+  void _handleCatalogSourcesChanged() {
+    final hasExplore = _catalogSourcesProvider?.hasAnySource ?? false;
+    if (hasExplore == _lastHasExplore) return;
+    _lastHasExplore = hasExplore;
+
+    setState(() {
+      _screens = _buildScreens(_isOffline);
+      _currentTab = _normalizeTabForMode(_currentTab, _isOffline);
+    });
+    // Same as the live-TV handler: the passthrough flag depends on whether
+    // _currentTab is the first tab, which the normalize above can change.
+    _updateTvosMenuPassthrough();
+  }
+
   void _handleOfflineStatusChanged() {
     final hasVisibleConnectedServers = context.read<MultiServerProvider>().hasConnectedServers;
     if (hasVisibleConnectedServers) _offlineUntilConnected = false;
@@ -1527,7 +1563,7 @@ class _MainScreenState extends State<MainScreen>
 
   /// Get navigation tabs filtered by offline mode
   List<NavigationTab> _getVisibleTabs(bool isOffline) {
-    return NavigationTab.getVisibleTabs(isOffline: isOffline, hasLiveTv: _hasLiveTv);
+    return NavigationTab.getVisibleTabs(isOffline: isOffline, hasLiveTv: _hasLiveTv, hasExplore: _lastHasExplore);
   }
 
   List<NavigationTab> _getBottomNavigationTabs(BuildContext context) {
@@ -1543,6 +1579,7 @@ class _MainScreenState extends State<MainScreen>
   GlobalKey? _screenKeyFor(NavigationTabId tab) {
     return switch (tab) {
       NavigationTabId.discover => _discoverKey,
+      NavigationTabId.explore => _exploreKey,
       NavigationTabId.libraries => _librariesKey,
       NavigationTabId.liveTv => _liveTvKey,
       NavigationTabId.search => _searchKey,

lib/screens/media_detail/action_buttons.dart

@@ -194,6 +194,38 @@ extension _MediaDetailActionButtons on _MediaDetailScreenState {
           _buildWatchedToggleButton(metadata, actionButtonStyle, tvScale, showFocus: state.showFocus),
     );
 
+    // Watchlist toggle for the connected catalog sources (Trakt, MAL).
+    // Membership reads each source's session snapshot — no per-open API
+    // call. Filled when the item is on ANY source's watchlist; with several
+    // candidates the press opens a source chooser.
+    // Not in the compact tiers: it drops away first on narrow screens.
+    final watchlistStates = [
+      for (final candidate in _watchlistCandidates) candidate.source.isOnWatchlist(metadata.kind, candidate.ids),
+    ];
+    final bool? onWatchlist = watchlistStates.contains(true)
+        ? true
+        : watchlistStates.contains(false)
+        ? false
+        : null;
+    final watchlistAction = _watchlistCandidates.isEmpty
+        ? null
+        : FocusableAction(
+            debugLabel: 'detail_watchlist',
+            onPressed: () => unawaited(_handleWatchlistTogglePressed(metadata)),
+            builder: (context, state) => KeyedSubtree(
+              key: _watchlistButtonKey,
+              child: iconActionButton(
+                state,
+                onPressed: onWatchlist == null ? null : () => unawaited(_handleWatchlistTogglePressed(metadata)),
+                icon: AppIcon(
+                  (onWatchlist ?? false) ? Symbols.bookmark_added_rounded : Symbols.bookmark_add_rounded,
+                  fill: 1,
+                ),
+                tooltip: (onWatchlist ?? false) ? t.explore.removeFromWatchlist : t.explore.addToWatchlist,
+              ),
+            ),
+          );
+
     void showMoreActions() => _contextMenuKey.currentState?.showContextMenu(context);
 
     final moreActionsAction = widget.isOffline
@@ -216,6 +248,7 @@ extension _MediaDetailActionButtons on _MediaDetailScreenState {
       ?shuffleAction,
       ?downloadAction,
       watchedAction,
+      ?watchlistAction,
       ?moreActionsAction,
     ];
 
@@ -280,6 +313,69 @@ extension _MediaDetailActionButtons on _MediaDetailScreenState {
     );
   }
 
+  Future<void> _handleWatchlistTogglePressed(MediaItem metadata) async {
+    final candidates = _watchlistCandidates;
+    if (candidates.isEmpty || _watchlistMutationInFlight) return;
+    // Parity with the disabled pointer button: while every membership is
+    // still unknown, a dpad press kicks the snapshot loads instead of
+    // opening a chooser whose selection would silently no-op.
+    if (candidates.every((c) => c.source.isOnWatchlist(metadata.kind, c.ids) == null)) {
+      for (final candidate in candidates) {
+        unawaited(candidate.source.ensureWatchlistLoaded());
+      }
+      return;
+    }
+    if (candidates.length == 1) {
+      await _toggleWatchlistOn(metadata, candidates.single);
+      return;
+    }
+
+    // Several providers can hold this item: choose per press. Each entry
+    // shows that source's current membership.
+    final renderBox = _watchlistButtonKey.currentContext?.findRenderObject() as RenderBox?;
+    if (renderBox == null) return;
+    final choice = await showAppMenu<WatchlistCandidate>(
+      context,
+      anchorRect: renderBox.localToGlobal(Offset.zero) & renderBox.size,
+      focusFirstItem: true,
+      entries: [
+        for (final candidate in candidates)
+          AppMenuItem(
+            value: candidate,
+            leading: CatalogSourceLogo(candidate.source.id),
+            label: candidate.source.displayName,
+            subtitle: (candidate.source.isOnWatchlist(metadata.kind, candidate.ids) ?? false)
+                ? t.explore.removeFromWatchlist
+                : t.explore.addToWatchlist,
+            trailing: (candidate.source.isOnWatchlist(metadata.kind, candidate.ids) ?? false)
+                ? const AppIcon(Symbols.bookmark_added_rounded, fill: 1)
+                : const AppIcon(Symbols.bookmark_add_rounded),
+          ),
+      ],
+    );
+    if (choice == null || !mounted) return;
+    await _toggleWatchlistOn(metadata, choice);
+  }
+
+  Future<void> _toggleWatchlistOn(MediaItem metadata, WatchlistCandidate candidate) async {
+    final current = candidate.source.isOnWatchlist(metadata.kind, candidate.ids);
+    if (current == null || _watchlistMutationInFlight) return;
+    _watchlistMutationInFlight = true;
+    try {
+      // Optimistic inside the source; the row/screens listening to
+      // watchlistChanges (including this one) rebuild immediately.
+      if (current) {
+        await candidate.source.removeFromWatchlist(metadata.kind, candidate.ids);
+      } else {
+        await candidate.source.addToWatchlist(metadata.kind, candidate.ids);
+      }
+    } catch (_) {
+      if (mounted) showErrorSnackBar(context, t.explore.watchlistUpdateFailed);
+    } finally {
+      _watchlistMutationInFlight = false;
+    }
+  }
+
   Future<void> _handleWatchedTogglePressed(MediaItem metadata) async {
     try {
       final isWatched = metadata.isWatched;

lib/screens/media_detail_screen.dart

@@ -21,7 +21,7 @@ import '../focus/focusable_action_bar.dart';
 import '../focus/focusable_wrapper.dart';
 import '../focus/key_event_utils.dart';
 import '../focus/input_mode_tracker.dart';
-import '../focus/card_focus_scope.dart';
+import '../widgets/cast_member_strip.dart';
 import '../widgets/focus_builders.dart';
 import '../media/library_query.dart';
 import '../media/media_hub.dart';
@@ -51,12 +51,13 @@ import '../utils/download_utils.dart';
 import '../services/settings_service.dart';
 import '../services/watch_actions.dart';
 import '../widgets/settings_builder.dart';
-import '../utils/grid_size_calculator.dart';
 import '../utils/layout_constants.dart';
+import '../models/catalog/catalog_item.dart';
+import '../providers/catalog_sources_provider.dart';
 import '../providers/download_provider.dart';
 import '../providers/offline_watch_provider.dart';
 import '../providers/watch_state_store.dart';
-import '../theme/mono_tokens.dart';
+import '../services/catalog/catalog_source.dart';
 import '../utils/app_logger.dart';
 import '../utils/formatters.dart';
 import '../utils/scroll_utils.dart';
@@ -64,6 +65,9 @@ import '../utils/dialogs.dart';
 import '../utils/snackbar_helper.dart';
 import '../utils/video_player_navigation.dart';
 import '../widgets/app_bar_back_button.dart';
+import '../widgets/app_menu.dart';
+import '../widgets/catalog_source_logo.dart';
+import '../widgets/desktop_app_bar.dart';
 import '../utils/desktop_window_padding.dart';
 import '../widgets/horizontal_scroll_with_arrows.dart';
 import '../widgets/media_context_menu.dart';
@@ -102,6 +106,10 @@ const String _tvDetailActorPersonIdRawKey = 'tvDetailActorPersonId';
 
 enum _SyncRuleAction { edit, remove, delete }
 
+/// A watchlist-capable catalog source paired with this item's ids in that
+/// source's terms (see `_resolveWatchlistIds`).
+typedef WatchlistCandidate = ({CatalogSource source, CatalogItemIds ids});
+
 class _SeasonEpisodePager {
   final Map<String, PagedMediaListState<MediaItem>> _states = {};
   final Set<String> _firstPageLoadsInFlight = {};
@@ -295,6 +303,15 @@ class _MediaDetailScreenState extends State<MediaDetailScreen>
   final ValueNotifier<MediaItem?> _tvDetailFocusedEpisode = ValueNotifier(null);
   bool _tvDetailActionRowHasFocus = false;
 
+  // Watchlist action (external catalog sources: Trakt, MAL). External ids
+  // resolve once via the owning server, then per capable source; membership
+  // comes from each source's session snapshot, so opening details never
+  // costs a provider call. Multiple candidates → the toggle opens a chooser.
+  List<WatchlistCandidate> _watchlistCandidates = const [];
+  List<CatalogSource> _watchlistListenedSources = const [];
+  final GlobalKey _watchlistButtonKey = GlobalKey();
+  bool _watchlistMutationInFlight = false;
+
   // Inline season tabs
   int _selectedSeasonIndex = 0;
   final _seasonEpisodePager = _SeasonEpisodePager();
@@ -670,6 +687,47 @@ class _MediaDetailScreenState extends State<MediaDetailScreen>
     _castFocusNode = FocusNode(debugLabel: 'cast_row');
     _infoRowsFocusNode = FocusNode(debugLabel: 'info_rows');
     _loadFullMetadata();
+    _initWatchlistState();
+  }
+
+  /// Hook up the watchlist action's data: every watchlist-capable catalog
+  /// source this item resolves in, with its per-source ids. No-ops offline
+  /// and for non-movie/show kinds.
+  void _initWatchlistState() {
+    if (widget.isOffline || (!_metadata.isMovie && !_metadata.isShow)) return;
+    final sources = Provider.of<CatalogSourcesProvider?>(context, listen: false)?.watchlistCapableSources;
+    if (sources == null || sources.isEmpty) return;
+    _watchlistListenedSources = sources;
+    for (final source in sources) {
+      source.watchlistChanges.addListener(_onWatchlistSourceChanged);
+      unawaited(source.ensureWatchlistLoaded());
+    }
+    unawaited(_resolveWatchlistIds(sources));
+  }
+
+  Future<void> _resolveWatchlistIds(List<CatalogSource> sources) async {
+    try {
+      final ids = await _getMediaClientForMetadata(context)?.fetchExternalIds(_metadata.id);
+      if (!mounted || ids == null || !ids.hasAny) return;
+      // Sources can require their own id forms (MAL maps external ids to an
+      // anime id via Fribb); null means the item is outside that source's
+      // domain. The action shows for the sources that resolved; with more
+      // than one, the toggle opens a source chooser.
+      final candidates = <WatchlistCandidate>[];
+      for (final source in sources) {
+        final resolved = await source.resolveItemIds(_metadata.kind, ids);
+        if (resolved != null) candidates.add((source: source, ids: resolved));
+      }
+      if (!mounted || candidates.isEmpty) return;
+      setState(() => _watchlistCandidates = candidates);
+    } catch (e) {
+      appLogger.d('Watchlist external-id resolution failed', error: e);
+    }
+  }
+
+  void _onWatchlistSourceChanged() {
+    // ignore: no-empty-block - membership state lives in the source
+    setStateIfMounted(() {});
   }
 
   void _onScroll() {
@@ -794,6 +852,9 @@ class _MediaDetailScreenState extends State<MediaDetailScreen>
 
   @override
   void dispose() {
+    for (final source in _watchlistListenedSources) {
+      source.watchlistChanges.removeListener(_onWatchlistSourceChanged);
+    }
     _routeObserver?.unsubscribe(this);
     _scrollController.dispose();
     _scrollOffset.dispose();
@@ -2143,12 +2204,9 @@ class _MediaDetailScreenState extends State<MediaDetailScreen>
   }
 
   /// Get the responsive card width used by seasons/extras/cast rows.
-  /// Uses the shared grid size calculator for consistency with library grids.
-  double _getResponsiveCardWidth() {
-    final density = SettingsService.instance.read(SettingsService.libraryDensity);
-    final availableWidth = MediaQuery.sizeOf(context).width;
-    return GridSizeCalculator.getCellWidth(availableWidth, context, density);
-  }
+  /// Delegates to the cast strip's calculator so the dpad scroll math and
+  /// the rendered cards can never disagree.
+  double _getResponsiveCardWidth() => CastMemberStrip.responsiveCardWidth(context);
 
   /// Handle key events for the overview section
   KeyEventResult _handleOverviewKeyEvent(FocusNode _, KeyEvent event) {
@@ -2464,7 +2522,7 @@ class _MediaDetailScreenState extends State<MediaDetailScreen>
         scrollListToIndex(
           _castScrollController,
           _focusedCastIndex,
-          itemExtent: _getResponsiveCardWidth() + 6 + 4,
+          itemExtent: CastMemberStrip.itemExtentForCardWidth(_getResponsiveCardWidth()),
           leadingPadding: 0,
         );
       }
@@ -2478,7 +2536,7 @@ class _MediaDetailScreenState extends State<MediaDetailScreen>
         scrollListToIndex(
           _castScrollController,
           _focusedCastIndex,
-          itemExtent: _getResponsiveCardWidth() + 6 + 4,
+          itemExtent: CastMemberStrip.itemExtentForCardWidth(_getResponsiveCardWidth()),
           leadingPadding: 0,
         );
       }
@@ -3104,10 +3162,19 @@ class _MediaDetailScreenState extends State<MediaDetailScreen>
 
     // Show loading state while fetching full metadata
     if (_isLoadingMetadata) {
+      // A bare AppBar's auto-implied back button ignores the macOS traffic
+      // lights; route the leading through the shared desktop padding logic.
+      final backButton = AppBarBackButton(
+        style: BackButtonStyle.plain,
+        onPressed: () => Navigator.pop(context, _watchStateChanged),
+      );
       final loading = Focus(
         onKeyEvent: _handleMediaDetailBackKey,
         child: Scaffold(
-          appBar: AppBar(),
+          appBar: AppBar(
+            leading: DesktopAppBarSections.buildLeadingSection(leading: backButton, context: context),
+            leadingWidth: DesktopAppBarSections.calculateLeadingWidthForSection(leading: backButton, context: context),
+          ),
           body: const Center(child: CircularProgressIndicator()),
         ),
       );
@@ -4374,95 +4441,20 @@ class _MediaDetailScreenState extends State<MediaDetailScreen>
   }
 
   Widget _buildCastSectionContent(MediaItem metadata) {
-    final cardWidth = _getResponsiveCardWidth();
-    const innerPadding = 3.0;
-    final imageSize = cardWidth;
-    // image + inner padding + text area + outer list padding + focus scale headroom
-    final containerHeight = imageSize + innerPadding * 2 + 58 + 10;
-
-    final theme = Theme.of(context);
-    final actorNameStyle = theme.textTheme.bodyMedium?.copyWith(fontWeight: .w600);
-    final actorRoleStyle = theme.textTheme.bodySmall?.copyWith(color: theme.colorScheme.onSurfaceVariant);
-
+    final roles = metadata.roles!;
     return Focus(
       focusNode: _castFocusNode,
       onKeyEvent: _handleCastKeyEvent,
       child: ListenableBuilder(
         listenable: _castFocusNode,
-        builder: (context, _) {
-          final hasFocus = _castFocusNode.hasFocus;
-
-          return SizedBox(
-            height: containerHeight,
-            child: HorizontalScrollWithArrows(
+        builder: (context, _) => CastMemberStrip(
+          members: [for (final actor in roles) (name: actor.tag, secondary: actor.role, imagePath: actor.thumbPath)],
+          imageClient: getServerBoundMediaClient(context),
           controller: _castScrollController,
-              builder: (scrollController) => ListView.builder(
-                addAutomaticKeepAlives: false,
-                addSemanticIndexes: false,
-                controller: scrollController,
-                scrollDirection: Axis.horizontal,
-                clipBehavior: Clip.none,
-                padding: const EdgeInsets.symmetric(vertical: 5),
-                itemCount: metadata.roles!.length,
-                itemBuilder: (context, index) {
-                  final actor = metadata.roles![index];
-                  final isFocused = hasFocus && index == _focusedCastIndex;
-
-                  return Padding(
-                    padding: const EdgeInsets.only(right: 4),
-                    child: FocusBuilders.buildLockedFocusWrapper(
-                      context: context,
-                      isFocused: isFocused,
-                      borderRadius: tokens(context).radiusSm,
-                      onTap: () => _navigateToActorMedia(actor),
-                      delegateFocusBorder: true,
-                      child: Padding(
-                        padding: const EdgeInsets.all(innerPadding),
-                        child: SizedBox(
-                          width: cardWidth,
-                          child: Column(
-                            crossAxisAlignment: .start,
-                            children: [
-                              CardFocusBorder(
-                                borderRadius: tokens(context).radiusSm,
-                                child: ClipRRect(
-                                  borderRadius: BorderRadius.circular(tokens(context).radiusSm),
-                                  child: OptimizedMediaImage(
-                                    client: getServerBoundMediaClient(context),
-                                    imagePath: actor.thumbPath,
-                                    width: imageSize,
-                                    height: imageSize,
-                                    fit: BoxFit.cover,
-                                    imageType: ImageType.avatar,
-                                    fallbackIcon: Symbols.person_rounded,
+          focusedIndex: _castFocusNode.hasFocus ? _focusedCastIndex : null,
+          onMemberTap: (index) => _navigateToActorMedia(roles[index]),
         ),
       ),
-                              ),
-                              const SizedBox(height: 8),
-                              Expanded(
-                                child: Column(
-                                  crossAxisAlignment: .start,
-                                  children: [
-                                    Text(actor.tag, style: actorNameStyle, maxLines: 2, overflow: .ellipsis),
-                                    if (actor.role != null) ...[
-                                      const SizedBox(height: 2),
-                                      Text(actor.role!, style: actorRoleStyle, maxLines: 1, overflow: .ellipsis),
-                                    ],
-                                  ],
-                                ),
-                              ),
-                            ],
-                          ),
-                        ),
-                      ),
-                    ),
-                  );
-                },
-              ),
-            ),
-          );
-        },
-      ),
     );
   }
 

lib/screens/search_screen.dart

@@ -2,12 +2,11 @@ import 'package:flutter/material.dart';
 import 'package:plezy/widgets/app_icon.dart';
 import 'package:material_symbols_icons/symbols.dart';
 import 'package:provider/provider.dart';
-import 'package:rate_limiter/rate_limiter.dart';
 
 import '../focus/focusable_text_field.dart';
 import '../i18n/strings.g.dart';
 import '../media/media_item.dart';
-import '../mixins/controller_disposer_mixin.dart';
+import '../mixins/debounced_media_search.dart';
 import '../mixins/mounted_set_state_mixin.dart';
 import '../mixins/refreshable.dart';
 import '../providers/multi_server_provider.dart';
@@ -30,163 +29,83 @@ class SearchScreen extends StatefulWidget {
 }
 
 class _SearchScreenState extends State<SearchScreen>
-    with
-        Refreshable,
-        FullRefreshable,
-        SearchInputFocusable,
-        FocusableTab,
-        ControllerDisposerMixin,
-        MountedSetStateMixin {
-  late final _searchController = createTextEditingController();
-  final _searchFocusNode = FocusNode(debugLabel: 'SearchInput');
-  final _firstResultFocusNode = FocusNode(debugLabel: 'SearchFirstResult');
-  List<MediaItem> _searchResults = [];
-  bool _isSearching = false;
-  bool _hasSearched = false;
-  late final Debounce _searchDebounce;
-  String _lastSearchedQuery = '';
+    with Refreshable, FullRefreshable, SearchInputFocusable, FocusableTab, MountedSetStateMixin, DebouncedMediaSearch {
   String? _focusResultsForQuery;
 
   @override
   void initState() {
     super.initState();
-    _searchDebounce = debounce(_performSearch, const Duration(milliseconds: 500));
-    _searchController.addListener(_onSearchChanged);
-    FocusUtils.requestFocusAfterBuild(this, _searchFocusNode);
+    FocusUtils.requestFocusAfterBuild(this, searchFocusNode);
   }
 
   @override
-  void dispose() {
-    _searchDebounce.cancel();
-    _searchController.removeListener(_onSearchChanged);
-    _searchFocusNode.dispose();
-    _firstResultFocusNode.dispose();
-    super.dispose();
-  }
+  String get searchDebugLabel => 'Search';
 
-  void _onSearchChanged() {
-    if (!mounted) return;
-
-    final query = _searchController.text;
-
-    if (query.trim().isEmpty) {
-      _searchDebounce.cancel();
-      _focusResultsForQuery = null;
-      setStateIfMounted(() {
-        _searchResults = [];
-        _hasSearched = false;
-        _isSearching = false;
-        _lastSearchedQuery = '';
-      });
-      return;
-    }
-
-    // Only search if the query has actually changed
-    if (query.trim() == _lastSearchedQuery.trim()) {
-      return;
-    }
-
-    _searchDebounce([query]);
-  }
-
-  Future<void> _performSearch(String query) async {
-    if (!mounted) return;
-
-    if (query.trim().isEmpty) {
-      setStateIfMounted(() {
-        _searchResults = [];
-        _hasSearched = false;
-      });
-      return;
-    }
-
-    setStateIfMounted(() {
-      _isSearching = true;
-      _hasSearched = true;
-    });
-
-    try {
-      if (!mounted) return;
+  @override
+  Future<List<MediaItem>> performSearchQuery(String query) async {
     final multiServerProvider = Provider.of<MultiServerProvider>(context, listen: false);
-
     if (!multiServerProvider.hasConnectedServers) {
       throw Exception('No servers available');
     }
-
-      final neutral = await multiServerProvider.aggregationService.searchAcrossServers(query);
-      if (mounted) {
-        setStateIfMounted(() {
-          _searchResults = neutral;
-          _isSearching = false;
-          _lastSearchedQuery = query.trim();
-        });
-        _maybeFocusResultsAfterSubmit(query, neutral);
+    return multiServerProvider.aggregationService.searchAcrossServers(query);
   }
-    } catch (e) {
+
+  @override
+  void onSearchError(Object error) {
     _focusResultsForQuery = null;
-      if (mounted) {
-        setStateIfMounted(() {
-          _isSearching = false;
-        });
-        showErrorSnackBar(context, t.errors.searchFailed(error: e));
-      }
-    }
+    showErrorSnackBar(context, t.errors.searchFailed(error: error));
   }
 
-  /// OSK "Search" / hardware Enter on TV: jump to results, or force the
-  /// search to run now and focus results when it lands.
-  void _handleSearchSubmit() {
-    final query = _searchController.text.trim();
-    if (query.isEmpty) return;
-
-    if (_searchResults.isNotEmpty && !_isSearching && query == _lastSearchedQuery.trim()) {
-      _firstResultFocusNode.requestFocus();
-      return;
+  @override
+  void onSearchCleared() {
+    _focusResultsForQuery = null;
   }
 
-    _focusResultsForQuery = query;
-    if (_searchDebounce.isPending || !_isSearching) {
-      _searchDebounce.cancel();
-      _performSearch(query);
-    }
-    // else: the in-flight search already covers the current text; its
-    // completion focuses the results.
-  }
-
-  void _maybeFocusResultsAfterSubmit(String query, List<MediaItem> results) {
-    if (_focusResultsForQuery == null || _focusResultsForQuery != query.trim()) return;
+  @override
+  void onSearchCompleted(String query, List<MediaItem> results) {
+    if (_focusResultsForQuery == null || _focusResultsForQuery != query) return;
     _focusResultsForQuery = null;
     if (results.isEmpty) return;
-    if (_searchController.text.trim() != query.trim()) return; // user kept editing
-    FocusUtils.requestFocusAfterBuild(this, _firstResultFocusNode);
+    if (searchController.text.trim() != query) return; // user kept editing
+    FocusUtils.requestFocusAfterBuild(this, firstResultFocusNode);
+  }
+
+  /// OSK "Search" / hardware Enter on TV additionally focuses the results
+  /// when the forced search lands.
+  @override
+  void handleSearchSubmit() {
+    final query = searchController.text.trim();
+    if (query.isEmpty) return;
+    if (searchResults.isEmpty || isSearching || query != lastSearchedQuery) {
+      _focusResultsForQuery = query;
+    }
+    super.handleSearchSubmit();
   }
 
   @override
   void refresh() {
     if (!mounted) return;
-    if (_searchController.text.isNotEmpty) {
-      _performSearch(_searchController.text);
-    }
+    runSearch(searchController.text.trim());
   }
 
   /// Focus the search input field
   @override
   void focusSearchInput() {
     if (!mounted) return;
-    _searchFocusNode.requestFocus();
+    searchFocusNode.requestFocus();
   }
 
   @override
   void focusActiveTabIfReady() {
     if (!mounted) return;
-    _searchFocusNode.requestFocus();
+    searchFocusNode.requestFocus();
   }
 
   /// Set the search query externally (e.g. from companion remote)
   @override
   void setSearchQuery(String query) {
     if (!mounted) return;
-    _searchController.text = query;
+    searchController.text = query;
   }
 
   // Public method to fully reload all content (for profile switches)
@@ -194,23 +113,15 @@ class _SearchScreenState extends State<SearchScreen>
   void fullRefresh() {
     if (!mounted) return;
     appLogger.d('SearchScreen.fullRefresh() called - clearing search and reloading');
-    // Clear search results and search text for new profile
-    _searchController.clear();
+    // Clearing the field resets the search state through the text listener.
     _focusResultsForQuery = null;
-    setStateIfMounted(() {
-      _searchResults.clear();
-      _isSearching = false;
-      _hasSearched = false;
-      _lastSearchedQuery = '';
-    });
+    searchController.clear();
   }
 
   void updateItem(String _) {
     if (!mounted) return;
     // Trigger a refresh of the search to get updated metadata
-    if (_searchController.text.isNotEmpty) {
-      _performSearch(_searchController.text);
-    }
+    runSearch(searchController.text.trim());
   }
 
   /// Navigate focus to the sidebar
@@ -226,13 +137,13 @@ class _SearchScreenState extends State<SearchScreen>
       sliver: SliverList(
         delegate: SliverChildBuilderDelegate(
           (context, index) {
-            final item = _searchResults[index];
+            final item = searchResults[index];
             return FocusableMediaCard(
               key: Key(item.globalKey),
               item: item,
               forceListMode: true,
               disableScale: true,
-              focusNode: index == 0 ? _firstResultFocusNode : null,
+              focusNode: index == 0 ? firstResultFocusNode : null,
               onRefresh: updateItem,
               onListRefresh: () => updateItem(item.id),
               onNavigateLeft: _navigateToSidebar,
@@ -240,7 +151,7 @@ class _SearchScreenState extends State<SearchScreen>
               showServerName: showServerName,
             );
           },
-          childCount: _searchResults.length,
+          childCount: searchResults.length,
           addAutomaticKeepAlives: false,
           addSemanticIndexes: false,
         ),
@@ -260,17 +171,15 @@ class _SearchScreenState extends State<SearchScreen>
               child: Padding(
                 padding: const EdgeInsets.only(left: 16, right: 16, bottom: 16),
                 child: FocusableTextField(
-                  controller: _searchController,
-                  focusNode: _searchFocusNode,
+                  controller: searchController,
+                  focusNode: searchFocusNode,
                   textInputAction: TextInputAction.search,
                   onNavigateLeft: _navigateToSidebar,
-                  onNavigateDown: _searchResults.isNotEmpty && !_isSearching
-                      ? _firstResultFocusNode.requestFocus
-                      : null,
-                  onEditingComplete: PlatformDetector.isTV() ? _handleSearchSubmit : null,
+                  onNavigateDown: searchResults.isNotEmpty && !isSearching ? firstResultFocusNode.requestFocus : null,
+                  onEditingComplete: PlatformDetector.isTV() ? handleSearchSubmit : null,
                   onBack: () {
-                    if (_searchController.text.isNotEmpty) {
-                      _searchController.clear();
+                    if (searchController.text.isNotEmpty) {
+                      searchController.clear();
                     } else {
                       _navigateToSidebar();
                     }
@@ -279,11 +188,11 @@ class _SearchScreenState extends State<SearchScreen>
                     context,
                     hintText: t.search.hint,
                     prefixIcon: const AppIcon(Symbols.search_rounded, fill: 1),
-                    suffixIcon: _searchController.text.isNotEmpty
+                    suffixIcon: searchController.text.isNotEmpty
                         ? IconButton(
                             icon: const AppIcon(Symbols.clear_rounded, fill: 1),
                             onPressed: () {
-                              _searchController.clear();
+                              searchController.clear();
                             },
                           )
                         : null,
@@ -291,9 +200,9 @@ class _SearchScreenState extends State<SearchScreen>
                 ),
               ),
             ),
-            if (_isSearching)
+            if (isSearching)
               LoadingIndicatorBox.sliver
-            else if (!_hasSearched)
+            else if (!hasSearched)
               SliverFillRemaining(
                 child: StateMessageWidget(
                   message: t.search.searchYourMedia,
@@ -302,7 +211,11 @@ class _SearchScreenState extends State<SearchScreen>
                   iconSize: 80,
                 ),
               )
-            else if (_searchResults.isEmpty)
+            else if (lastSearchFailed)
+              SliverFillRemaining(
+                child: StateMessageWidget(message: t.explore.searchFailed, icon: Symbols.error_rounded, iconSize: 80),
+              )
+            else if (searchResults.isEmpty)
               SliverFillRemaining(
                 child: StateMessageWidget(
                   message: t.messages.noResultsFound,

lib/utils/catalog_navigation_helper.dart

@@ -0,0 +1,14 @@
+import 'package:flutter/material.dart';
+
+import '../models/catalog/catalog_item.dart';
+import '../screens/catalog_item_detail_screen.dart';
+
+/// Open a catalog item (Explore tab tap sink, routed here by the catalog
+/// branches in `navigateToMediaItem` / `navigateToMediaItemDetails`).
+///
+/// Always lands on [CatalogItemDetailScreen]; the screen resolves library
+/// availability itself and lists the matching libraries in place ("In these
+/// libraries"), rather than redirecting matched items to a different screen.
+Future<void> navigateToCatalogItem(BuildContext context, CatalogItem item) async {
+  await Navigator.push(context, MaterialPageRoute(builder: (_) => CatalogItemDetailScreen(item: item)));
+}

lib/utils/media_navigation_helper.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import '../i18n/strings.g.dart';
+import '../media/catalog_item_ref.dart';
 import '../media/ids.dart';
 import '../media/media_item.dart';
 import '../media/media_item_types.dart';
@@ -11,6 +12,7 @@ import '../screens/media_detail_screen.dart';
 import '../screens/playlist/playlist_detail_screen.dart';
 import '../services/settings_service.dart';
 import '../utils/global_key_utils.dart';
+import 'catalog_navigation_helper.dart';
 import 'music_navigation.dart';
 import 'plex_library_section_helpers.dart';
 import 'video_player_navigation.dart';
@@ -167,6 +169,15 @@ Future<MediaNavigationResult> navigateToMediaItem(
     return MediaNavigationResult.unsupported;
   }
   final mi = item;
+
+  // Catalog stand-ins (Explore tab) have no server id — every server-backed
+  // route below would break on them. Route to the catalog flow instead.
+  if (mi.isCatalogItem) {
+    final catalogItem = mi.catalogItem;
+    if (catalogItem == null) return MediaNavigationResult.unsupported;
+    await navigateToCatalogItem(context, catalogItem);
+    return MediaNavigationResult.navigated;
+  }
   final settings = SettingsService.instanceOrNull;
   final continueWatchingAction = settings?.read(SettingsService.continueWatchingAction) ?? ContinueWatchingAction.play;
   final episodeAction = settings?.read(SettingsService.episodeAction) ?? EpisodeAction.play;
@@ -251,6 +262,16 @@ Future<MediaNavigationResult> navigateToMediaItemDetails(
   void Function(String)? onRefresh,
   MediaItem? metadataOverride,
 }) async {
+  // Catalog stand-ins (Explore tab) must never reach MediaDetailScreen — it
+  // hard-requires a server id. Guarded here (not only in navigateToMediaItem)
+  // so secondary entry points like card-title clicks are covered too.
+  if (mi.isCatalogItem) {
+    final catalogItem = mi.catalogItem;
+    if (catalogItem == null) return MediaNavigationResult.unsupported;
+    await navigateToCatalogItem(context, catalogItem);
+    return MediaNavigationResult.navigated;
+  }
+
   final target = mediaDetailNavigationTargetFor(mi, metadataOverride: metadataOverride);
   final result = await Navigator.push<bool>(
     context,

lib/widgets/cast_member_strip.dart

@@ -0,0 +1,144 @@
+import 'package:flutter/material.dart';
+import 'package:material_symbols_icons/symbols.dart';
+
+import '../focus/card_focus_scope.dart';
+import '../media/media_server_client.dart';
+import '../services/settings_service.dart';
+import '../theme/mono_tokens.dart';
+import '../utils/grid_size_calculator.dart';
+import '../utils/media_image_helper.dart';
+import 'focus_builders.dart';
+import 'horizontal_scroll_with_arrows.dart';
+import 'optimized_media_image.dart';
+
+/// One person in a [CastMemberStrip]: display name, secondary line
+/// (character/role), and an image path — server-relative (resolved through
+/// [CastMemberStrip.imageClient]) or an absolute URL.
+typedef CastStripMember = ({String name, String? secondary, String? imagePath});
+
+/// Horizontal cast/character strip shared by the media detail screen (server
+/// items, actor navigation, dpad locked-focus) and the catalog detail screen
+/// (provider items, display-only).
+class CastMemberStrip extends StatelessWidget {
+  static const double _innerPadding = 3;
+
+  final List<CastStripMember> members;
+
+  /// Resolves server-relative image paths; null when [members] carry
+  /// absolute URLs.
+  final MediaServerClient? imageClient;
+  final ScrollController? controller;
+
+  /// Index highlighted by the owner's locked-focus dpad model; null when no
+  /// member is focused (or the owner has no focus model).
+  final int? focusedIndex;
+  final void Function(int index)? onMemberTap;
+
+  const CastMemberStrip({
+    super.key,
+    required this.members,
+    this.imageClient,
+    this.controller,
+    this.focusedIndex,
+    this.onMemberTap,
+  });
+
+  /// Card width matching the poster grids' cell width for the user's
+  /// density setting.
+  static double responsiveCardWidth(BuildContext context) {
+    final density = SettingsService.instance.read(SettingsService.libraryDensity);
+    final availableWidth = MediaQuery.sizeOf(context).width;
+    return GridSizeCalculator.getCellWidth(availableWidth, context, density);
+  }
+
+  /// The strip's fixed height for a given card width:
+  /// image + inner padding + text area + list padding + focus scale headroom.
+  static double heightForCardWidth(double cardWidth) => cardWidth + _innerPadding * 2 + 58 + 10;
+
+  /// One item's horizontal extent (card + inner padding + trailing gap) for
+  /// owners doing their own ensure-visible scroll math (media detail dpad).
+  static double itemExtentForCardWidth(double cardWidth) => cardWidth + _innerPadding * 2 + 4;
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    final nameStyle = theme.textTheme.bodyMedium?.copyWith(fontWeight: FontWeight.w600);
+    final secondaryStyle = theme.textTheme.bodySmall?.copyWith(color: theme.colorScheme.onSurfaceVariant);
+    final cardWidth = responsiveCardWidth(context);
+    final imageSize = cardWidth;
+
+    return SizedBox(
+      height: heightForCardWidth(cardWidth),
+      child: HorizontalScrollWithArrows(
+        controller: controller,
+        builder: (scrollController) => ListView.builder(
+          addAutomaticKeepAlives: false,
+          addSemanticIndexes: false,
+          controller: scrollController,
+          scrollDirection: Axis.horizontal,
+          clipBehavior: Clip.none,
+          padding: const EdgeInsets.symmetric(vertical: 5),
+          itemCount: members.length,
+          itemBuilder: (context, index) {
+            final member = members[index];
+
+            return Padding(
+              padding: const EdgeInsets.only(right: 4),
+              child: FocusBuilders.buildLockedFocusWrapper(
+                context: context,
+                isFocused: index == focusedIndex,
+                borderRadius: tokens(context).radiusSm,
+                onTap: onMemberTap == null ? null : () => onMemberTap!(index),
+                delegateFocusBorder: true,
+                child: Padding(
+                  padding: const EdgeInsets.all(_innerPadding),
+                  child: SizedBox(
+                    width: cardWidth,
+                    child: Column(
+                      crossAxisAlignment: CrossAxisAlignment.start,
+                      children: [
+                        CardFocusBorder(
+                          borderRadius: tokens(context).radiusSm,
+                          child: ClipRRect(
+                            borderRadius: BorderRadius.circular(tokens(context).radiusSm),
+                            child: OptimizedMediaImage(
+                              client: imageClient,
+                              imagePath: member.imagePath,
+                              width: imageSize,
+                              height: imageSize,
+                              fit: BoxFit.cover,
+                              imageType: ImageType.avatar,
+                              fallbackIcon: Symbols.person_rounded,
+                            ),
+                          ),
+                        ),
+                        const SizedBox(height: 8),
+                        Expanded(
+                          child: Column(
+                            crossAxisAlignment: CrossAxisAlignment.start,
+                            children: [
+                              Text(member.name, style: nameStyle, maxLines: 2, overflow: TextOverflow.ellipsis),
+                              if (member.secondary != null) ...[
+                                const SizedBox(height: 2),
+                                Text(
+                                  member.secondary!,
+                                  style: secondaryStyle,
+                                  maxLines: 1,
+                                  overflow: TextOverflow.ellipsis,
+                                ),
+                              ],
+                            ],
+                          ),
+                        ),
+                      ],
+                    ),
+                  ),
+                ),
+              ),
+            );
+          },
+        ),
+      ),
+    );
+  }
+}

lib/widgets/catalog_context_menu.dart

@@ -0,0 +1,78 @@
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:material_symbols_icons/symbols.dart';
+import 'package:provider/provider.dart';
+
+import '../i18n/strings.g.dart';
+import '../models/catalog/catalog_item.dart';
+import '../providers/catalog_sources_provider.dart';
+import '../utils/catalog_navigation_helper.dart';
+import '../utils/snackbar_helper.dart';
+import 'app_menu.dart';
+
+enum _CatalogMenuAction { viewDetails, toggleWatchlist }
+
+/// Watchlist mutations keyed by source+item so a re-opened menu can't
+/// double-fire while one is still in flight (the detail screens keep their
+/// own per-screen guards).
+final Set<String> _watchlistMutationsInFlight = {};
+
+/// Context menu for catalog stand-in cards (Explore tab). Replaces
+/// [MediaContextMenu], whose entries are all server-backed and would break on
+/// items with no server id.
+Future<void> showCatalogItemMenu(BuildContext context, CatalogItem item, {Offset? position}) async {
+  final source = Provider.of<CatalogSourcesProvider?>(context, listen: false)?.watchlistSourceFor(item);
+  final onWatchlist = source?.isOnWatchlist(item.kind, item.ids);
+  if (source != null && onWatchlist == null) {
+    // Load in the background so the row is actionable next open.
+    unawaited(source.ensureWatchlistLoaded());
+  }
+
+  Rect anchorRect;
+  if (position != null) {
+    anchorRect = position & Size.zero;
+  } else {
+    final renderBox = context.findRenderObject() as RenderBox?;
+    if (renderBox == null) return;
+    anchorRect = renderBox.localToGlobal(Offset.zero) & renderBox.size;
+  }
+
+  final action = await showAppMenu<_CatalogMenuAction>(
+    context,
+    anchorRect: anchorRect,
+    focusFirstItem: position == null,
+    entries: [
+      AppMenuItem(value: _CatalogMenuAction.viewDetails, label: t.mediaMenu.viewDetails, icon: Symbols.info_rounded),
+      if (onWatchlist != null)
+        AppMenuItem(
+          value: _CatalogMenuAction.toggleWatchlist,
+          label: onWatchlist ? t.explore.removeFromWatchlist : t.explore.addToWatchlist,
+          icon: onWatchlist ? Symbols.bookmark_remove_rounded : Symbols.bookmark_add_rounded,
+        ),
+    ],
+  );
+  if (action == null || !context.mounted) return;
+
+  switch (action) {
+    case _CatalogMenuAction.viewDetails:
+      await navigateToCatalogItem(context, item);
+    case _CatalogMenuAction.toggleWatchlist:
+      // Re-read membership: it can have changed while the menu was open
+      // (snapshot load, another surface's toggle).
+      final current = source!.isOnWatchlist(item.kind, item.ids) ?? onWatchlist ?? false;
+      final mutationKey = '${source.id.name}/${item.kind.id}/${item.ids.canonicalKey ?? item.title}';
+      if (!_watchlistMutationsInFlight.add(mutationKey)) return;
+      try {
+        if (current) {
+          await source.removeFromWatchlist(item.kind, item.ids);
+        } else {
+          await source.addToWatchlist(item.kind, item.ids);
+        }
+      } catch (_) {
+        if (context.mounted) showErrorSnackBar(context, t.explore.watchlistUpdateFailed);
+      } finally {
+        _watchlistMutationsInFlight.remove(mutationKey);
+      }
+  }
+}

lib/widgets/media_card.dart

@@ -1,3 +1,4 @@
+import 'dart:async';
 import 'dart:ui';
 import '../media/ids.dart';
 
@@ -7,15 +8,18 @@ import 'package:material_symbols_icons/symbols.dart';
 import 'package:provider/provider.dart';
 import '../focus/card_focus_scope.dart';
 import '../focus/input_mode_tracker.dart';
+import '../media/catalog_item_ref.dart';
 import '../media/media_item.dart';
 import '../media/media_item_types.dart';
 import '../media/media_kind.dart';
 import '../media/media_playlist.dart';
 import '../mixins/context_menu_tap_mixin.dart';
+import '../models/catalog/catalog_item.dart';
 import '../providers/download_provider.dart';
 import '../providers/watch_state_store.dart';
 import '../services/download_storage_service.dart';
 import '../services/settings_service.dart';
+import 'catalog_context_menu.dart';
 import 'settings_builder.dart';
 import 'watched_indicator.dart';
 import '../utils/content_utils.dart';
@@ -96,6 +100,34 @@ class MediaCardState extends State<MediaCard> with ContextMenuTapMixin<MediaCard
     _handleTap(context, _effectiveItemForAction(context));
   }
 
+  CatalogItem? get _catalogItem {
+    final item = widget.item;
+    return item is MediaItem && item.isCatalogItem ? item.catalogItem : null;
+  }
+
+  // Catalog stand-ins get the catalog menu at the same seams (long-press,
+  // right-click, TV context-menu key) instead of the server-backed
+  // MediaContextMenu, which is not in their tree.
+  @override
+  void showContextMenuFromTap() {
+    final catalogItem = _catalogItem;
+    if (catalogItem != null) {
+      unawaited(showCatalogItemMenu(context, catalogItem, position: lastTapPosition));
+      return;
+    }
+    super.showContextMenuFromTap();
+  }
+
+  @override
+  void showContextMenu() {
+    final catalogItem = _catalogItem;
+    if (catalogItem != null) {
+      unawaited(showCatalogItemMenu(context, catalogItem));
+      return;
+    }
+    super.showContextMenu();
+  }
+
   Object _effectiveItem(BuildContext context) {
     final item = widget.item;
     return item is MediaItem ? context.withFreshWatchState(item) : item;
@@ -261,6 +293,12 @@ class MediaCardState extends State<MediaCard> with ContextMenuTapMixin<MediaCard
             episodePosterModeOverride: widget.episodePosterModeOverride,
           );
 
+    // Catalog stand-ins (Explore tab) have no server-backed actions — every
+    // entry in the context menu would break on serverId == null. Long-press
+    // no-ops on them; taps route through the catalog branch in
+    // navigateToMediaItem.
+    if (item is MediaItem && item.isCatalogItem) return cardWidget;
+
     // MediaContextMenu as a non-widget helper — only wrap with its key for
     // programmatic context menu access; gesture callbacks are on InkWell directly.
     return MediaContextMenu(

lib/widgets/seerr_request_sheet.dart

@@ -0,0 +1,549 @@
+import 'dart:async';
+
+import 'package:collection/collection.dart';
+import 'package:flutter/material.dart';
+import 'package:material_symbols_icons/symbols.dart';
+
+import '../i18n/strings.g.dart';
+import '../media/media_kind.dart';
+import '../models/seerr/seerr_details.dart';
+import '../models/seerr/seerr_media.dart';
+import '../models/seerr/seerr_public_settings.dart';
+import '../models/seerr/seerr_request.dart';
+import '../models/seerr/seerr_service.dart';
+import '../services/catalog/seerr_catalog_source.dart';
+import '../services/seerr/seerr_constants.dart';
+import '../services/seerr/seerr_exceptions.dart';
+import '../utils/app_logger.dart';
+import '../utils/snackbar_helper.dart';
+import 'app_icon.dart';
+import 'app_menu.dart';
+import 'loading_indicator_box.dart';
+import 'overlay_sheet.dart';
+import 'stat_chip.dart';
+
+/// Open the Seerr request sheet for a title. Pops with a success snackbar
+/// once the request is submitted.
+Future<void> showSeerrRequestSheet(
+  BuildContext context, {
+  required SeerrCatalogSource source,
+  required MediaKind kind,
+  required int tmdbId,
+  required String title,
+}) {
+  return OverlaySheetController.showAdaptive<void>(
+    context,
+    isScrollControlled: true,
+    showDragHandle: true,
+    builder: (_) => SeerrRequestSheet(source: source, kind: kind, tmdbId: tmdbId, title: title),
+  );
+}
+
+/// The full Seerr request flow, mirroring the web UI: per-season selection
+/// with availability states, a 4K toggle, and the advanced destination
+/// pickers — every section gated by the same instance settings and user
+/// permissions Seerr itself checks.
+class SeerrRequestSheet extends StatefulWidget {
+  final SeerrCatalogSource source;
+  final MediaKind kind;
+  final int tmdbId;
+  final String title;
+
+  const SeerrRequestSheet({
+    super.key,
+    required this.source,
+    required this.kind,
+    required this.tmdbId,
+    required this.title,
+  });
+
+  @override
+  State<SeerrRequestSheet> createState() => _SeerrRequestSheetState();
+}
+
+class _SeerrRequestSheetState extends State<SeerrRequestSheet> {
+  bool _loading = true;
+  bool _loadFailed = false;
+
+  SeerrPublicSettings? _settings;
+  SeerrMediaInfo? _mediaInfo;
+
+  /// TV only: requestable seasons (specials and empty seasons dropped).
+  List<SeerrSeason> _seasons = const [];
+  final Set<int> _selectedSeasons = {};
+
+  bool _is4k = false;
+
+  /// Advanced options (REQUEST_ADVANCED): all configured instances of the
+  /// matching service; the pickers filter by the 4K toggle.
+  List<SeerrServiceInstance> _allServers = const [];
+  SeerrServiceInstance? _server;
+  SeerrServiceDetail? _serverDetail;
+  bool _serverDetailLoading = false;
+  int? _profileId;
+  String? _rootFolder;
+  int? _languageProfileId;
+
+  bool _submitting = false;
+  String? _errorText;
+
+  bool get _isMovie => widget.kind == MediaKind.movie;
+
+  int get _permissions => widget.source.client.session.permissions;
+
+  bool get _advancedAllowed => seerrHasPermission(_permissions, [SeerrPermission.requestAdvanced]);
+
+  bool get _can4k {
+    final settings = _settings;
+    if (settings == null) return false;
+    final enabled = _isMovie ? settings.movie4kEnabled : settings.series4kEnabled;
+    return enabled &&
+        seerrHasPermission(_permissions, [
+          SeerrPermission.request4k,
+          _isMovie ? SeerrPermission.request4kMovie : SeerrPermission.request4kTv,
+        ]);
+  }
+
+  bool get _partialSeasons => _settings?.partialRequestsEnabled ?? true;
+
+  List<SeerrServiceInstance> get _serversForVariant => [..._allServers.where((s) => s.is4k == _is4k)];
+
+  @override
+  void initState() {
+    super.initState();
+    unawaited(_load());
+  }
+
+  Future<void> _load() async {
+    setState(() {
+      _loading = true;
+      _loadFailed = false;
+    });
+    final client = widget.source.client;
+    try {
+      final (settings, servers) = await (
+        client.getPublicSettings(),
+        _advancedAllowed
+            ? (_isMovie ? client.getRadarrServices() : client.getSonarrServices())
+            : Future.value(const <SeerrServiceInstance>[]),
+      ).wait;
+
+      SeerrMediaInfo? mediaInfo;
+      var seasons = const <SeerrSeason>[];
+      if (_isMovie) {
+        mediaInfo = (await client.getMovie(widget.tmdbId)).mediaInfo;
+      } else {
+        final tv = await client.getTv(widget.tmdbId);
+        mediaInfo = tv.mediaInfo;
+        seasons = [
+          for (final season in tv.seasons ?? const <SeerrSeason>[])
+            if (season.seasonNumber > 0 && (season.episodeCount ?? 0) > 0) season,
+        ];
+      }
+      if (!mounted) return;
+      setState(() {
+        _settings = settings;
+        _mediaInfo = mediaInfo;
+        _seasons = seasons;
+        _allServers = servers;
+        _loading = false;
+      });
+      _selectDefaultServer();
+    } catch (e) {
+      appLogger.w('Seerr: request sheet load failed for tmdb ${widget.tmdbId}', error: e);
+      if (!mounted) return;
+      setState(() {
+        _loading = false;
+        _loadFailed = true;
+      });
+    }
+  }
+
+  void _selectDefaultServer() {
+    final candidates = _serversForVariant;
+    final next = candidates.firstWhereOrNull((s) => s.isDefault) ?? candidates.firstOrNull;
+    _adoptServer(next);
+  }
+
+  void _adoptServer(SeerrServiceInstance? server) {
+    setState(() {
+      _server = server;
+      _serverDetail = null;
+      _profileId = server?.activeProfileId;
+      _rootFolder = server?.activeDirectory;
+      _languageProfileId = server?.activeLanguageProfileId;
+    });
+    if (server != null && _advancedAllowed) unawaited(_loadServerDetail(server));
+  }
+
+  Future<void> _loadServerDetail(SeerrServiceInstance server) async {
+    setState(() => _serverDetailLoading = true);
+    final client = widget.source.client;
+    try {
+      final detail = _isMovie ? await client.getRadarrService(server.id) : await client.getSonarrService(server.id);
+      if (!mounted || _server?.id != server.id) return;
+      setState(() {
+        _serverDetail = detail;
+        _serverDetailLoading = false;
+        _profileId ??= detail.server?.activeProfileId;
+        _rootFolder ??= detail.server?.activeDirectory;
+        _languageProfileId ??= detail.server?.activeLanguageProfileId;
+      });
+    } catch (e) {
+      // Advanced pickers degrade to server defaults; the request still works.
+      appLogger.w('Seerr: service detail load failed', error: e);
+      if (!mounted || _server?.id != server.id) return;
+      setState(() => _serverDetailLoading = false);
+    }
+  }
+
+  void _toggle4k(bool value) {
+    setState(() {
+      _is4k = value;
+      _selectedSeasons.removeWhere(_seasonBlocked);
+    });
+    _selectDefaultServer();
+  }
+
+  // ---------- Availability ----------
+
+  /// Non-declined requests matching the current 4K variant.
+  Iterable<SeerrRequest> get _activeRequests => (_mediaInfo?.requests ?? const <SeerrRequest>[]).where(
+    (r) => (r.is4k ?? false) == _is4k && r.status != SeerrRequestStatus.declined,
+  );
+
+  SeerrMediaStatus _variantStatus(SeerrMediaStatus status, SeerrMediaStatus status4k) => _is4k ? status4k : status;
+
+  /// Why this title/season can't be requested, or null when it can.
+  String? _blockedLabel(SeerrMediaStatus status, {required bool coveredByRequest}) {
+    return switch (status) {
+      SeerrMediaStatus.available => t.seerr.statusAvailable,
+      SeerrMediaStatus.partiallyAvailable => t.seerr.statusPartiallyAvailable,
+      SeerrMediaStatus.processing => t.seerr.statusProcessing,
+      SeerrMediaStatus.pending => t.seerr.statusRequested,
+      SeerrMediaStatus.unknown || SeerrMediaStatus.deleted when coveredByRequest => t.seerr.statusRequested,
+      SeerrMediaStatus.unknown || SeerrMediaStatus.deleted => null,
+    };
+  }
+
+  /// Movies block at the title level; shows block per season.
+  String? get _movieBlockedLabel {
+    final info = _mediaInfo;
+    if (info == null) return null;
+    return _blockedLabel(_variantStatus(info.status, info.status4k), coveredByRequest: _activeRequests.isNotEmpty);
+  }
+
+  String? _seasonBlockedLabel(int seasonNumber) {
+    final info = _mediaInfo;
+    if (info == null) return null;
+    final season = info.seasons?.firstWhereOrNull((s) => s.seasonNumber == seasonNumber);
+    final covered = _activeRequests.any((r) => r.seasons?.any((s) => s.seasonNumber == seasonNumber) ?? false);
+    return _blockedLabel(
+      _variantStatus(season?.status ?? SeerrMediaStatus.unknown, season?.status4k ?? SeerrMediaStatus.unknown),
+      coveredByRequest: covered,
+    );
+  }
+
+  bool _seasonBlocked(int seasonNumber) => _seasonBlockedLabel(seasonNumber) != null;
+
+  List<int> get _requestableSeasons => [
+    for (final season in _seasons)
+      if (!_seasonBlocked(season.seasonNumber)) season.seasonNumber,
+  ];
+
+  bool get _nothingToRequest => _isMovie ? _movieBlockedLabel != null : _requestableSeasons.isEmpty;
+
+  bool get _canSubmit {
+    if (_submitting || _loading || _loadFailed || _nothingToRequest) return false;
+    if (!_isMovie && _partialSeasons && _selectedSeasons.isEmpty) return false;
+    return true;
+  }
+
+  // ---------- Submit ----------
+
+  Future<void> _submit() async {
+    if (!_canSubmit) return;
+    setState(() {
+      _submitting = true;
+      _errorText = null;
+    });
+    final advanced = _advancedAllowed && _server != null;
+    final payload = SeerrRequestPayload(
+      mediaType: _isMovie ? 'movie' : 'tv',
+      mediaId: widget.tmdbId,
+      seasons: _isMovie ? null : (_partialSeasons ? (_selectedSeasons.toList()..sort()) : null),
+      is4k: _is4k,
+      serverId: advanced ? _server?.id : null,
+      profileId: advanced ? _profileId : null,
+      rootFolder: advanced ? _rootFolder : null,
+      languageProfileId: advanced ? _languageProfileId : null,
+    );
+    try {
+      await widget.source.client.createRequest(payload);
+      if (!mounted) return;
+      // The sheet may be hosted by an OverlaySheetHost (no route of its own),
+      // so a bare Navigator.pop would pop the screen underneath instead.
+      OverlaySheetController.closeAdaptive(context);
+      showSuccessSnackBar(context, t.seerr.requestSubmitted);
+    } on SeerrApiException catch (e) {
+      if (!mounted) return;
+      setState(() {
+        _submitting = false;
+        _errorText = e.message;
+      });
+    } catch (e) {
+      appLogger.w('Seerr: request submit failed', error: e);
+      if (!mounted) return;
+      setState(() {
+        _submitting = false;
+        _errorText = t.seerr.requestFailed(error: '$e');
+      });
+    }
+  }
+
+  // ---------- UI ----------
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    return SingleChildScrollView(
+      padding: const EdgeInsets.fromLTRB(16, 8, 16, 16),
+      child: Column(
+        mainAxisSize: MainAxisSize.min,
+        crossAxisAlignment: CrossAxisAlignment.stretch,
+        children: [
+          Text(t.seerr.request, style: theme.textTheme.titleLarge),
+          const SizedBox(height: 2),
+          Text(
+            widget.title,
+            style: theme.textTheme.bodyMedium?.copyWith(color: theme.colorScheme.onSurface.withValues(alpha: 0.7)),
+            maxLines: 2,
+            overflow: TextOverflow.ellipsis,
+          ),
+          const SizedBox(height: 12),
+          if (_loading)
+            const Padding(
+              padding: EdgeInsets.symmetric(vertical: 32),
+              child: Center(child: LoadingIndicatorBox()),
+            )
+          else if (_loadFailed)
+            _buildLoadError(theme)
+          else ...[
+            if (_nothingToRequest)
+              _buildNothingToRequest(theme)
+            else ...[
+              if (!_isMovie && _partialSeasons) ..._buildSeasonSection(theme),
+              if (_can4k)
+                SwitchListTile(
+                  value: _is4k,
+                  onChanged: _submitting ? null : _toggle4k,
+                  title: Text(t.seerr.request4k),
+                  secondary: const AppIcon(Symbols.four_k, fill: 1),
+                  contentPadding: EdgeInsets.zero,
+                ),
+              if (_advancedAllowed && _serversForVariant.isNotEmpty) ..._buildAdvancedSection(theme),
+              if (_errorText case final String error) ...[
+                const SizedBox(height: 8),
+                Text(error, style: theme.textTheme.bodySmall?.copyWith(color: theme.colorScheme.error)),
+              ],
+              const SizedBox(height: 16),
+              FilledButton.icon(
+                onPressed: _canSubmit ? _submit : null,
+                icon: _submitting ? const LoadingIndicatorBox() : const AppIcon(Symbols.download_rounded, fill: 1),
+                label: Text(t.seerr.request),
+              ),
+            ],
+          ],
+        ],
+      ),
+    );
+  }
+
+  Widget _buildLoadError(ThemeData theme) => Padding(
+    padding: const EdgeInsets.symmetric(vertical: 16),
+    child: Column(
+      children: [
+        Text(t.seerr.requestsLoadFailed, style: theme.textTheme.bodyMedium),
+        const SizedBox(height: 12),
+        OutlinedButton(onPressed: () => unawaited(_load()), child: Text(t.common.retry)),
+      ],
+    ),
+  );
+
+  Widget _buildNothingToRequest(ThemeData theme) {
+    final label = _isMovie ? _movieBlockedLabel : null;
+    return Padding(
+      padding: const EdgeInsets.symmetric(vertical: 16),
+      child: Row(
+        children: [
+          AppIcon(Symbols.check_circle_rounded, fill: 1, color: theme.colorScheme.primary),
+          const SizedBox(width: 10),
+          Expanded(child: Text(label ?? t.seerr.nothingToRequest, style: theme.textTheme.bodyMedium)),
+        ],
+      ),
+    );
+  }
+
+  List<Widget> _buildSeasonSection(ThemeData theme) {
+    final requestable = _requestableSeasons;
+    final allSelected = requestable.isNotEmpty && requestable.every(_selectedSeasons.contains);
+    return [
+      Text(t.seerr.seasons, style: theme.textTheme.titleSmall),
+      CheckboxListTile(
+        value: allSelected,
+        onChanged: _submitting
+            ? null
+            : (checked) => setState(() {
+                if (checked ?? false) {
+                  _selectedSeasons.addAll(requestable);
+                } else {
+                  _selectedSeasons.clear();
+                }
+              }),
+        title: Text(t.seerr.allSeasons),
+        contentPadding: EdgeInsets.zero,
+        controlAffinity: ListTileControlAffinity.leading,
+      ),
+      for (final season in _seasons) _buildSeasonTile(theme, season),
+      const SizedBox(height: 8),
+    ];
+  }
+
+  Widget _buildSeasonTile(ThemeData theme, SeerrSeason season) {
+    final number = season.seasonNumber;
+    final blockedLabel = _seasonBlockedLabel(number);
+    final episodeCount = season.episodeCount;
+    return CheckboxListTile(
+      value: blockedLabel != null || _selectedSeasons.contains(number),
+      onChanged: blockedLabel != null || _submitting
+          ? null
+          : (checked) => setState(() {
+              if (checked ?? false) {
+                _selectedSeasons.add(number);
+              } else {
+                _selectedSeasons.remove(number);
+              }
+            }),
+      title: Text(season.name ?? t.common.seasonNumber(number: number)),
+      subtitle: episodeCount == null ? null : Text(t.explore.episodeCount(n: episodeCount)),
+      secondary: blockedLabel == null ? null : StatChip(label: blockedLabel),
+      contentPadding: EdgeInsets.zero,
+      controlAffinity: ListTileControlAffinity.leading,
+    );
+  }
+
+  List<Widget> _buildAdvancedSection(ThemeData theme) {
+    final servers = _serversForVariant;
+    final detail = _serverDetail;
+    final profiles = detail?.profiles ?? const <SeerrServiceProfile>[];
+    final folders = detail?.rootFolders ?? const <SeerrRootFolder>[];
+    final languages = detail?.languageProfiles ?? const <SeerrServiceProfile>[];
+    return [
+      const SizedBox(height: 8),
+      Row(
+        children: [
+          Text(t.seerr.advancedOptions, style: theme.textTheme.titleSmall),
+          if (_serverDetailLoading) ...[const SizedBox(width: 10), const LoadingIndicatorBox(size: 14)],
+        ],
+      ),
+      if (servers.length > 1)
+        _PickerTile<SeerrServiceInstance>(
+          icon: Symbols.dns_rounded,
+          label: t.seerr.destinationServer,
+          value: _server?.name ?? '',
+          options: servers,
+          describe: (s) => s.name ?? '#${s.id}',
+          isSelected: (s) => s.id == _server?.id,
+          enabled: !_submitting,
+          onSelected: _adoptServer,
+        ),
+      if (profiles.isNotEmpty)
+        _PickerTile<SeerrServiceProfile>(
+          icon: Symbols.high_quality_rounded,
+          label: t.seerr.qualityProfile,
+          value: profiles.firstWhereOrNull((p) => p.id == _profileId)?.name ?? '',
+          options: profiles,
+          describe: (p) => p.name ?? '#${p.id}',
+          isSelected: (p) => p.id == _profileId,
+          enabled: !_submitting,
+          onSelected: (p) => setState(() => _profileId = p.id),
+        ),
+      if (folders.isNotEmpty)
+        _PickerTile<SeerrRootFolder>(
+          icon: Symbols.folder_rounded,
+          label: t.seerr.rootFolder,
+          value: _rootFolder ?? '',
+          options: folders,
+          describe: (f) => f.path ?? '#${f.id}',
+          isSelected: (f) => f.path == _rootFolder,
+          enabled: !_submitting,
+          onSelected: (f) => setState(() => _rootFolder = f.path),
+        ),
+      if (languages.isNotEmpty)
+        _PickerTile<SeerrServiceProfile>(
+          icon: Symbols.language_rounded,
+          label: t.seerr.languageProfile,
+          value: languages.firstWhereOrNull((p) => p.id == _languageProfileId)?.name ?? '',
+          options: languages,
+          describe: (p) => p.name ?? '#${p.id}',
+          isSelected: (p) => p.id == _languageProfileId,
+          enabled: !_submitting,
+          onSelected: (p) => setState(() => _languageProfileId = p.id),
+        ),
+    ];
+  }
+}
+
+/// A "current value" row that opens an [showAppMenu] of options, anchored to
+/// itself — the same dpad-safe pattern as the watchlist source chooser.
+class _PickerTile<T> extends StatelessWidget {
+  final IconData icon;
+  final String label;
+  final String value;
+  final List<T> options;
+  final String Function(T) describe;
+  final bool Function(T) isSelected;
+  final bool enabled;
+  final ValueChanged<T> onSelected;
+
+  const _PickerTile({
+    required this.icon,
+    required this.label,
+    required this.value,
+    required this.options,
+    required this.describe,
+    required this.isSelected,
+    required this.enabled,
+    required this.onSelected,
+  });
+
+  Future<void> _open(BuildContext context) async {
+    final box = context.findRenderObject() as RenderBox?;
+    if (box == null) return;
+    final anchorRect = box.localToGlobal(Offset.zero) & box.size;
+    final picked = await showAppMenu<T>(
+      context,
+      anchorRect: anchorRect,
+      focusFirstItem: true,
+      entries: [
+        for (final option in options)
+          AppMenuItem<T>(value: option, label: describe(option), selected: isSelected(option)),
+      ],
+    );
+    if (!context.mounted) return;
+    if (picked != null) onSelected(picked);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return ListTile(
+      leading: AppIcon(icon, fill: 1),
+      title: Text(label),
+      subtitle: value.isEmpty ? null : Text(value, maxLines: 1, overflow: TextOverflow.ellipsis),
+      trailing: const AppIcon(Symbols.unfold_more_rounded, fill: 1),
+      contentPadding: EdgeInsets.zero,
+      enabled: enabled,
+      onTap: () => unawaited(_open(context)),
+    );
+  }
+}

lib/widgets/side_navigation_rail.dart

@@ -14,6 +14,7 @@ import '../media/media_item.dart';
 import '../media/media_library.dart';
 import '../mixins/mounted_set_state_mixin.dart';
 import '../navigation/navigation_tabs.dart';
+import '../providers/catalog_sources_provider.dart';
 import '../providers/hidden_libraries_provider.dart';
 import '../providers/libraries_provider.dart';
 import '../services/music/music_playback_service.dart';
@@ -241,6 +242,7 @@ class SideNavigationRailState extends State<SideNavigationRail> with MountedSetS
   }
 
   static const _kHome = 'home';
+  static const _kExplore = 'explore';
   static const _kNowPlaying = 'nowPlaying';
   static const _kLibraries = 'libraries';
   static const _kSearch = 'search';
@@ -382,6 +384,8 @@ class SideNavigationRailState extends State<SideNavigationRail> with MountedSetS
     switch (widget.selectedTab) {
       case NavigationTabId.discover:
         return _kHome;
+      case NavigationTabId.explore:
+        return _kExplore;
       case NavigationTabId.libraries:
         final libKey = widget.selectedLibraryKey;
         if (libKey != null && _librariesExpanded) {
@@ -432,11 +436,13 @@ class SideNavigationRailState extends State<SideNavigationRail> with MountedSetS
     required bool hasHiddenLibraries,
     required bool hasLiveTv,
     required bool hasNowPlaying,
+    required bool hasExplore,
   }) {
     return {
       _kHome,
       if (hasNowPlaying) _kNowPlaying,
       _kLibraries,
+      if (hasExplore) _kExplore,
       _kSearch,
       if (_showDownloads) _kDownloads,
       _kSettings,
@@ -511,6 +517,7 @@ class SideNavigationRailState extends State<SideNavigationRail> with MountedSetS
     required bool hasHiddenLibraries,
     required bool hasLiveTv,
     required bool hasNowPlaying,
+    required bool hasExplore,
   }) {
     return [
       if (widget.isOfflineMode && widget.onReconnect != null) _kReconnect,
@@ -526,6 +533,7 @@ class SideNavigationRailState extends State<SideNavigationRail> with MountedSetS
           ],
         ],
         if (hasLiveTv) 'liveTv',
+        if (hasExplore) _kExplore,
         _kSearch,
       ],
       if (_showDownloads) _kDownloads,
@@ -643,6 +651,9 @@ class SideNavigationRailState extends State<SideNavigationRail> with MountedSetS
     final itemHorizontalPadding = itemHorizontalPaddingForContext(context, isCollapsed: isCollapsed);
     final hasLiveTv = context.watch<MultiServerProvider>().hasLiveTv;
     // Nullable watch: rail tests (and any host without the profile session
+    // scope) simply never show the Explore item.
+    final hasExplore = context.watch<CatalogSourcesProvider?>()?.hasAnySource ?? false;
+    // Nullable watch: rail tests (and any host without the profile session
     // scope) simply never show the Now Playing item. TV-only — it is the
     // way back into the now-playing screen there; desktop already has the
     // mini-player for that.
@@ -680,6 +691,7 @@ class SideNavigationRailState extends State<SideNavigationRail> with MountedSetS
             hasHiddenLibraries: hiddenLibraries.isNotEmpty,
             hasLiveTv: hasLiveTv,
             hasNowPlaying: nowPlayingTrack != null,
+            hasExplore: hasExplore,
           ),
         );
         final focusOrder = _buildFocusOrder(
@@ -688,6 +700,7 @@ class SideNavigationRailState extends State<SideNavigationRail> with MountedSetS
           hasHiddenLibraries: hiddenLibraries.isNotEmpty,
           hasLiveTv: hasLiveTv,
           hasNowPlaying: nowPlayingTrack != null,
+          hasExplore: hasExplore,
         );
         _debugAssertUniqueFocusOrder(focusOrder);
         return TapRegion(
@@ -777,6 +790,19 @@ class SideNavigationRailState extends State<SideNavigationRail> with MountedSetS
                                       ),
                                       const SizedBox(height: 8),
                                     ],
+                                    if (hasExplore) ...[
+                                      _buildNavItem(
+                                        icon: Symbols.explore_rounded,
+                                        selectedIcon: Symbols.explore_rounded,
+                                        label: Translations.of(context).navigation.explore,
+                                        isSelected: widget.selectedTab == NavigationTabId.explore,
+                                        isFocused: _focusTracker.isFocused(_kExplore),
+                                        onTap: () => widget.onDestinationSelected(NavigationTabId.explore),
+                                        focusNode: _focusTracker.get(_kExplore),
+                                        isCollapsed: isCollapsed,
+                                      ),
+                                      const SizedBox(height: 8),
+                                    ],
                                     _buildNavItem(
                                       icon: Symbols.search_rounded,
                                       selectedIcon: Symbols.search_rounded,

lib/widgets/stat_chip.dart

@@ -0,0 +1,32 @@
+import 'package:flutter/material.dart';
+
+import 'app_icon.dart';
+
+/// Small labeled pill (optionally with a leading icon): detail-screen stat
+/// chips, request-sheet season status labels.
+class StatChip extends StatelessWidget {
+  final IconData? icon;
+  final Color? iconColor;
+  final String label;
+
+  const StatChip({super.key, this.icon, this.iconColor, required this.label});
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    return Container(
+      padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 5),
+      decoration: BoxDecoration(
+        color: theme.colorScheme.surfaceContainerHigh,
+        borderRadius: BorderRadius.circular(999),
+      ),
+      child: Row(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          if (icon != null) ...[AppIcon(icon!, size: 14, fill: 1, color: iconColor), const SizedBox(width: 4)],
+          Text(label, style: theme.textTheme.labelMedium),
+        ],
+      ),
+    );
+  }
+}

test/navigation/navigation_tabs_test.dart

@@ -41,5 +41,40 @@ void main() {
         NavigationTabId.discover,
       );
     });
+
+    test('online falls back to Home when preferred Explore is unavailable', () {
+      expect(
+        NavigationTab.resolveDefaultTab(isOffline: false, hasLiveTv: false, preferredStartup: NavigationTabId.explore),
+        NavigationTabId.discover,
+      );
+      expect(
+        NavigationTab.resolveDefaultTab(
+          isOffline: false,
+          hasLiveTv: false,
+          hasExplore: true,
+          preferredStartup: NavigationTabId.explore,
+        ),
+        NavigationTabId.explore,
+      );
+    });
+  });
+
+  group('NavigationTab.getVisibleTabs', () {
+    test('hides Explore until a catalog source is connected', () {
+      final without = NavigationTab.getVisibleTabs(isOffline: false);
+      expect(without.map((tab) => tab.id), isNot(contains(NavigationTabId.explore)));
+
+      final with_ = NavigationTab.getVisibleTabs(isOffline: false, hasExplore: true, hasLiveTv: true);
+      final ids = with_.map((tab) => tab.id).toList();
+      expect(ids, contains(NavigationTabId.explore));
+      // Explore sits after Live TV, directly before Search.
+      expect(ids.indexOf(NavigationTabId.explore), ids.indexOf(NavigationTabId.liveTv) + 1);
+      expect(ids.indexOf(NavigationTabId.explore), ids.indexOf(NavigationTabId.search) - 1);
+    });
+
+    test('Explore is online-only', () {
+      final offline = NavigationTab.getVisibleTabs(isOffline: true, hasExplore: true);
+      expect(offline.map((tab) => tab.id), isNot(contains(NavigationTabId.explore)));
+    });
   });
 }

test/providers/explore_provider_test.dart

@@ -0,0 +1,170 @@
+import 'dart:async';
+
+import 'package:flutter/foundation.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:plezy/i18n/strings.g.dart';
+import 'package:plezy/media/media_kind.dart';
+import 'package:plezy/models/catalog/catalog_cast_member.dart';
+import 'package:plezy/models/catalog/catalog_item.dart';
+import 'package:plezy/providers/catalog_sources_provider.dart';
+import 'package:plezy/providers/explore_provider.dart';
+import 'package:plezy/services/catalog/catalog_source.dart';
+import 'package:plezy/utils/external_ids.dart';
+
+/// Minimal controllable source: rows resolve immediately unless [gate] is
+/// set, in which case fetches park on completers the test releases.
+class _FakeSource implements CatalogSource {
+  _FakeSource(this.id, {this.rows = const [CatalogRowId.watchlist, CatalogRowId.trendingMovies]});
+
+  @override
+  final CatalogSourceId id;
+  final List<CatalogRowId> rows;
+  final watchlist = WatchlistChangeNotifier();
+
+  bool gate = false;
+  final pending = <Completer<CatalogPage>>[];
+  final fetches = <CatalogRowId, int>{};
+
+  CatalogPage _page(CatalogRowId row) => CatalogPage(
+    items: [
+      CatalogItem(
+        source: id,
+        kind: MediaKind.movie,
+        title: '${id.name}:${row.name}',
+        ids: const CatalogItemIds(tmdb: 1),
+      ),
+    ],
+  );
+
+  @override
+  Future<CatalogPage> fetchRow(CatalogRowId row, {int page = 1, int limit = 25}) {
+    fetches[row] = (fetches[row] ?? 0) + 1;
+    if (gate) {
+      final completer = Completer<CatalogPage>();
+      pending.add(completer);
+      return completer.future;
+    }
+    return Future.value(_page(row));
+  }
+
+  void releaseAll() {
+    for (final completer in pending) {
+      completer.complete(const CatalogPage(items: []));
+    }
+    pending.clear();
+  }
+
+  @override
+  String get displayName => id.name;
+  @override
+  List<CatalogRowId> get supportedRows => rows;
+  @override
+  bool get supportsWatchlist => true;
+  @override
+  Listenable get watchlistChanges => watchlist;
+  @override
+  Future<List<CatalogItem>> search(String query, {int limit = 30}) async => const [];
+  @override
+  Future<List<CatalogCastMember>> fetchCast(CatalogItem item, {int limit = 20}) async => const [];
+  @override
+  Future<List<CatalogItem>> fetchRelated(CatalogItem item, {int limit = 20}) async => const [];
+  @override
+  Future<void> ensureWatchlistLoaded() async {}
+  @override
+  bool? isOnWatchlist(MediaKind kind, CatalogItemIds ids) => null;
+  @override
+  Future<CatalogItemIds?> resolveItemIds(MediaKind kind, ExternalIds external) async => null;
+  @override
+  Future<void> addToWatchlist(MediaKind kind, CatalogItemIds ids) async {}
+  @override
+  Future<void> removeFromWatchlist(MediaKind kind, CatalogItemIds ids) async {}
+  @override
+  void dispose() => watchlist.dispose();
+}
+
+/// Drives [activeSource] directly; the real provider derives it from the
+/// account providers, which is irrelevant to ExploreProvider's contract.
+class _FakeSourcesProvider extends CatalogSourcesProvider {
+  CatalogSource? _current;
+
+  void setActive(CatalogSource? source) {
+    _current = source;
+    notifyListeners();
+  }
+
+  @override
+  CatalogSource? get activeSource => _current;
+}
+
+Future<void> _pumpMicrotasks() async {
+  for (var i = 0; i < 5; i++) {
+    await Future<void>.delayed(Duration.zero);
+  }
+}
+
+void main() {
+  group('ExploreProvider', () {
+    late _FakeSourcesProvider sources;
+    late ExploreProvider explore;
+
+    setUp(() {
+      LocaleSettings.setLocaleSync(AppLocale.en);
+      sources = _FakeSourcesProvider();
+      explore = ExploreProvider(sources);
+      addTearDown(() {
+        explore.dispose();
+        sources.dispose();
+      });
+    });
+
+    test('source switch during an in-flight load starts the new load instead of coalescing', () async {
+      final slow = _FakeSource(CatalogSourceId.trakt)..gate = true;
+      final fast = _FakeSource(CatalogSourceId.mal, rows: const [CatalogRowId.popularAnime]);
+      addTearDown(() {
+        slow.dispose();
+        fast.dispose();
+      });
+
+      sources.setActive(slow);
+      await _pumpMicrotasks();
+      expect(explore.isLoading, isTrue);
+      expect(slow.pending, isNotEmpty);
+
+      // Switch while the old source's rows are still parked.
+      sources.setActive(fast);
+      await _pumpMicrotasks();
+
+      expect(explore.state, ExploreLoadState.loaded);
+      expect(explore.rowHubs.single.row, CatalogRowId.popularAnime);
+      expect(explore.rowHubs.single.hub.items.single.title, 'mal:popularAnime');
+
+      // The stale pass completing must not clobber the new source's state.
+      slow.releaseAll();
+      await _pumpMicrotasks();
+      expect(explore.state, ExploreLoadState.loaded);
+      expect(explore.rowHubs.single.row, CatalogRowId.popularAnime);
+    });
+
+    test('mutation during the initial load is caught up by ensureFresh', () async {
+      final source = _FakeSource(CatalogSourceId.trakt)..gate = true;
+      addTearDown(source.dispose);
+
+      sources.setActive(source);
+      await _pumpMicrotasks();
+      expect(source.pending, hasLength(2));
+
+      // A watchlist mutation lands while the full load is still in flight:
+      // the pages about to land were fetched pre-mutation.
+      source.watchlist.notify();
+      source.gate = false;
+      source.releaseAll();
+      await _pumpMicrotasks();
+      expect(explore.state, ExploreLoadState.loaded);
+
+      final refetchesBefore = source.fetches[CatalogRowId.watchlist] ?? 0;
+      explore.ensureFresh();
+      await _pumpMicrotasks();
+      expect(source.fetches[CatalogRowId.watchlist], refetchesBefore + 1);
+    });
+  });
+}

test/screens/catalog_search_screen_test.dart

@@ -0,0 +1,103 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:plezy/i18n/strings.g.dart';
+import 'package:plezy/media/media_kind.dart';
+import 'package:plezy/models/catalog/catalog_item.dart';
+import 'package:plezy/screens/catalog_search_screen.dart';
+import 'package:plezy/services/catalog/catalog_source.dart';
+import 'package:plezy/services/settings_service.dart';
+import 'package:plezy/theme/mono_theme.dart';
+
+import '../test_helpers/prefs.dart';
+
+/// Only the members the search screen touches; everything else throws.
+class _FakeSearchSource implements CatalogSource {
+  final queries = <String>[];
+  bool failNext = false;
+
+  @override
+  CatalogSourceId get id => CatalogSourceId.trakt;
+
+  @override
+  String get displayName => 'Trakt';
+
+  @override
+  Future<List<CatalogItem>> search(String query, {int limit = 30}) async {
+    queries.add(query);
+    if (failNext) {
+      failNext = false;
+      throw Exception('boom');
+    }
+    return [
+      CatalogItem(source: id, kind: MediaKind.movie, title: 'result: $query', ids: const CatalogItemIds(tmdb: 1)),
+    ];
+  }
+
+  @override
+  dynamic noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
+}
+
+Future<void> _pump(WidgetTester tester, _FakeSearchSource source) async {
+  await tester.pumpWidget(
+    TranslationProvider(
+      child: MaterialApp(
+        theme: monoTheme(dark: true),
+        home: CatalogSearchScreen(source: source),
+      ),
+    ),
+  );
+}
+
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  setUpAll(() {
+    LocaleSettings.setLocaleSync(AppLocale.en);
+  });
+
+  setUp(() async {
+    resetSharedPreferencesForTest();
+    SettingsService.resetForTesting();
+    await SettingsService.getInstance();
+  });
+
+  testWidgets('reverting to the last-searched query cancels the pending debounce', (tester) async {
+    final source = _FakeSearchSource();
+    await _pump(tester, source);
+
+    await tester.enterText(find.byType(TextField), 'abc');
+    await tester.pump(const Duration(milliseconds: 600));
+    await tester.pumpAndSettle();
+    expect(source.queries, ['abc']);
+    expect(_state(tester).searchResults.single.title, 'result: abc');
+
+    // Type ahead, then revert to the shown query before the debounce fires:
+    // the armed 'abcd' search must never run.
+    await tester.enterText(find.byType(TextField), 'abcd');
+    await tester.pump(const Duration(milliseconds: 100));
+    await tester.enterText(find.byType(TextField), 'abc');
+    await tester.pump(const Duration(milliseconds: 700));
+    await tester.pumpAndSettle();
+
+    expect(source.queries, ['abc']);
+    expect(_state(tester).searchResults.single.title, 'result: abc');
+  });
+
+  testWidgets('failed search shows the failure state and recovers on retry', (tester) async {
+    final source = _FakeSearchSource()..failNext = true;
+    await _pump(tester, source);
+
+    await tester.enterText(find.byType(TextField), 'abc');
+    await tester.pump(const Duration(milliseconds: 600));
+    await tester.pumpAndSettle();
+    expect(find.text(t.explore.searchFailed), findsOneWidget);
+
+    await tester.enterText(find.byType(TextField), 'abcd');
+    await tester.pump(const Duration(milliseconds: 600));
+    await tester.pumpAndSettle();
+    expect(_state(tester).searchResults.single.title, 'result: abcd');
+    expect(find.text(t.explore.searchFailed), findsNothing);
+  });
+}
+
+dynamic _state(WidgetTester tester) => tester.state<State<CatalogSearchScreen>>(find.byType(CatalogSearchScreen));

test/widgets/seerr_request_sheet_test.dart

@@ -0,0 +1,269 @@
+import 'dart:convert';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:http/http.dart' as http;
+import 'package:http/testing.dart';
+import 'package:plezy/i18n/strings.g.dart';
+import 'package:plezy/media/media_kind.dart';
+import 'package:plezy/models/seerr/seerr_session.dart';
+import 'package:plezy/services/catalog/seerr_catalog_source.dart';
+import 'package:plezy/services/seerr/seerr_client.dart';
+import 'package:plezy/services/seerr/seerr_constants.dart';
+import 'package:plezy/widgets/overlay_sheet.dart';
+import 'package:plezy/widgets/seerr_request_sheet.dart';
+
+http.Response _json(Object body, {int status = 200}) =>
+    http.Response(jsonEncode(body), status, headers: {'content-type': 'application/json'});
+
+SeerrCatalogSource _source(MockClient mock, {int permissions = SeerrPermission.request}) {
+  final client = SeerrClient(
+    SeerrSession(
+      baseUrl: 'https://seerr.example.com',
+      method: SeerrAuthMethod.local,
+      identifier: 'a@b.c',
+      secret: 'pw',
+      cookie: 'cookie',
+      userId: 1,
+      permissions: permissions,
+      displayName: 'Alice',
+      instanceLabel: 'Seerr',
+      createdAt: 0,
+    ),
+    onSessionInvalidated: () {},
+    httpClient: mock,
+  );
+  final source = SeerrCatalogSource(client);
+  addTearDown(() {
+    source.dispose();
+    client.dispose();
+  });
+  return source;
+}
+
+Map<String, dynamic> _publicSettings() => {
+  'initialized': true,
+  'localLogin': true,
+  'mediaServerLogin': true,
+  'movie4kEnabled': false,
+  'series4kEnabled': false,
+  'partialRequestsEnabled': true,
+};
+
+/// Mirrors production: the sheet is opened via [showSeerrRequestSheet] on a
+/// pushed route that hosts its own [OverlaySheetHost] (like
+/// CatalogItemDetailScreen), so the sheet renders in the host's stack rather
+/// than as a route of its own.
+Future<void> _pumpSheet(
+  WidgetTester tester, {
+  required SeerrCatalogSource source,
+  required MediaKind kind,
+  required int tmdbId,
+  required String title,
+}) async {
+  await tester.pumpWidget(
+    MaterialApp(
+      home: Builder(
+        builder: (context) => Scaffold(
+          body: Center(
+            child: TextButton(
+              onPressed: () => Navigator.of(context).push(
+                MaterialPageRoute<void>(
+                  builder: (_) => OverlaySheetHost(
+                    canPop: true,
+                    child: Scaffold(
+                      body: Builder(
+                        builder: (context) => Center(
+                          child: TextButton(
+                            onPressed: () => showSeerrRequestSheet(
+                              context,
+                              source: source,
+                              kind: kind,
+                              tmdbId: tmdbId,
+                              title: title,
+                            ),
+                            child: const Text('request'),
+                          ),
+                        ),
+                      ),
+                    ),
+                  ),
+                ),
+              ),
+              child: const Text('open'),
+            ),
+          ),
+        ),
+      ),
+    ),
+  );
+  await tester.tap(find.text('open'));
+  await tester.pumpAndSettle();
+  await tester.tap(find.text('request'));
+  await tester.pumpAndSettle();
+}
+
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  setUp(() {
+    LocaleSettings.setLocaleSync(AppLocale.en);
+  });
+
+  testWidgets('TV: disables unavailable seasons, drops specials, posts selected seasons', (tester) async {
+    Map<String, dynamic>? postedBody;
+    final mock = MockClient((request) async {
+      switch (request.url.path) {
+        case '/api/v1/settings/public':
+          return _json(_publicSettings());
+        case '/api/v1/tv/1396':
+          return _json({
+            'id': 1396,
+            'name': 'Breaking Bad',
+            'seasons': [
+              {'seasonNumber': 0, 'episodeCount': 5, 'name': 'Specials'},
+              {'seasonNumber': 1, 'episodeCount': 7, 'name': 'Season 1'},
+              {'seasonNumber': 2, 'episodeCount': 13, 'name': 'Season 2'},
+            ],
+            'mediaInfo': {
+              'status': 4,
+              'status4k': 1,
+              'seasons': [
+                {'seasonNumber': 1, 'status': 5, 'status4k': 1},
+              ],
+              'requests': [],
+            },
+          });
+        case '/api/v1/request':
+          postedBody = jsonDecode(request.body) as Map<String, dynamic>;
+          return _json({'id': 10, 'status': 1}, status: 201);
+      }
+      fail('unexpected request ${request.url.path}');
+    });
+    final source = _source(mock);
+
+    await _pumpSheet(tester, source: source, kind: MediaKind.show, tmdbId: 1396, title: 'Breaking Bad');
+
+    expect(find.text('Specials'), findsNothing);
+    expect(find.text('Season 1'), findsOneWidget);
+    expect(find.text('Season 2'), findsOneWidget);
+    // Season 1 is available on the server: checked, disabled, labeled.
+    expect(find.text('Available'), findsOneWidget);
+    final season1 = tester.widget<CheckboxListTile>(
+      find.ancestor(of: find.text('Season 1'), matching: find.byType(CheckboxListTile)),
+    );
+    expect(season1.onChanged, isNull);
+    expect(season1.value, isTrue);
+
+    // Nothing selected yet: submit disabled.
+    final submitFinder = find.widgetWithText(FilledButton, 'Request');
+    expect(tester.widget<FilledButton>(submitFinder).onPressed, isNull);
+
+    await tester.tap(find.text('Season 2'));
+    await tester.pump();
+    expect(tester.widget<FilledButton>(submitFinder).onPressed, isNotNull);
+
+    await tester.tap(submitFinder);
+    await tester.pumpAndSettle();
+
+    expect(postedBody, {
+      'mediaType': 'tv',
+      'mediaId': 1396,
+      'seasons': [2],
+      'is4k': false,
+    });
+    // The sheet closed but the hosting screen must survive the submit —
+    // a bare Navigator.pop here would pop the whole detail route.
+    expect(find.text('Season 2'), findsNothing);
+    expect(find.text('request'), findsOneWidget);
+    expect(find.text('Request submitted'), findsOneWidget);
+  });
+
+  testWidgets('movie that is already available offers nothing to request', (tester) async {
+    final mock = MockClient((request) async {
+      switch (request.url.path) {
+        case '/api/v1/settings/public':
+          return _json(_publicSettings());
+        case '/api/v1/movie/603':
+          return _json({
+            'id': 603,
+            'title': 'The Matrix',
+            'mediaInfo': {'status': 5, 'status4k': 1},
+          });
+      }
+      fail('unexpected request ${request.url.path}');
+    });
+    final source = _source(mock);
+
+    await _pumpSheet(tester, source: source, kind: MediaKind.movie, tmdbId: 603, title: 'The Matrix');
+
+    expect(find.text('Available'), findsOneWidget);
+    expect(find.byType(FilledButton), findsNothing);
+  });
+
+  testWidgets('advanced permission loads servers and sends destination overrides', (tester) async {
+    Map<String, dynamic>? postedBody;
+    final mock = MockClient((request) async {
+      switch (request.url.path) {
+        case '/api/v1/settings/public':
+          return _json(_publicSettings());
+        case '/api/v1/movie/550':
+          return _json({'id': 550, 'title': 'Fight Club'});
+        case '/api/v1/service/radarr':
+          return _json([
+            {
+              'id': 0,
+              'name': 'Radarr Main',
+              'is4k': false,
+              'isDefault': true,
+              'activeProfileId': 6,
+              'activeDirectory': '/movies',
+            },
+          ]);
+        case '/api/v1/service/radarr/0':
+          return _json({
+            'server': {
+              'id': 0,
+              'name': 'Radarr Main',
+              'is4k': false,
+              'isDefault': true,
+              'activeProfileId': 6,
+              'activeDirectory': '/movies',
+            },
+            'profiles': [
+              {'id': 6, 'name': '1080p'},
+              {'id': 7, 'name': '4K Remux'},
+            ],
+            'rootFolders': [
+              {'id': 1, 'path': '/movies'},
+            ],
+          });
+        case '/api/v1/request':
+          postedBody = jsonDecode(request.body) as Map<String, dynamic>;
+          return _json({'id': 11, 'status': 2}, status: 201);
+      }
+      fail('unexpected request ${request.url.path}');
+    });
+    final source = _source(mock, permissions: SeerrPermission.admin);
+
+    await _pumpSheet(tester, source: source, kind: MediaKind.movie, tmdbId: 550, title: 'Fight Club');
+
+    // Single server: no server picker, but profile/folder pickers show
+    // the instance defaults.
+    expect(find.text('Destination server'), findsNothing);
+    expect(find.text('Quality profile'), findsOneWidget);
+    expect(find.text('1080p'), findsOneWidget);
+
+    await tester.tap(find.widgetWithText(FilledButton, 'Request'));
+    await tester.pumpAndSettle();
+
+    expect(postedBody, {
+      'mediaType': 'movie',
+      'mediaId': 550,
+      'is4k': false,
+      'serverId': 0,
+      'profileId': 6,
+      'rootFolder': '/movies',
+    });
+  });
+}