refactor(ui): unify expressive actions and modal transitions

lib/screens/artist_screen.dart

@@ -1001,6 +1001,7 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen>
 
     showModalBottomSheet<void>(
       context: context,
+      sheetAnimationStyle: AppMotion.surfaceEntrance(context),
       useRootNavigator: true,
       isScrollControlled: true,
       backgroundColor: context.isMornye

lib/screens/home_tab_explore.dart

@@ -430,6 +430,7 @@ extension _HomeTabExploreUI on _HomeTabState {
 
     showModalBottomSheet<void>(
       context: context,
+      sheetAnimationStyle: AppMotion.surfaceEntrance(context),
       useRootNavigator: true,
       backgroundColor: colorScheme.surface,
       builder: (context) => SafeArea(

lib/screens/home_tab_search_results.dart

@@ -177,6 +177,7 @@ extension _HomeTabSearchResultsUI on _HomeTabState {
     final mornye = context.isMornye;
     showModalBottomSheet<void>(
       context: context,
+      sheetAnimationStyle: AppMotion.surfaceEntrance(context),
       useRootNavigator: true,
       isScrollControlled: true,
       backgroundColor: mornye
@@ -494,7 +495,8 @@ extension _HomeTabSearchResultsUI on _HomeTabState {
               if (showSortButton)
                 SizedBox(
                   height: 32,
-                  child: TextButton.icon(
+                  child: ExpressiveButton(
+                    text: true,
                     onPressed: () => _showSortOptions(colorScheme),
                     icon: mornye
                         ? null
@@ -507,7 +509,11 @@ extension _HomeTabSearchResultsUI on _HomeTabState {
                                 ? colorScheme.primary
                                 : colorScheme.onSurfaceVariant,
                           ),
-                    label: Text(
+                    style: TextButton.styleFrom(
+                      padding: const EdgeInsets.symmetric(horizontal: 8),
+                      visualDensity: VisualDensity.compact,
+                    ),
+                    child: Text(
                       _searchSortOption != HomeSearchSortOption.defaultOrder
                           ? _sortOptionLabel(_searchSortOption)
                           : context.l10n.libraryFilterSort,
@@ -519,10 +525,6 @@ extension _HomeTabSearchResultsUI on _HomeTabState {
                             : colorScheme.onSurfaceVariant,
                       ),
                     ),
-                    style: TextButton.styleFrom(
-                      padding: const EdgeInsets.symmetric(horizontal: 8),
-                      visualDensity: VisualDensity.compact,
-                    ),
                   ),
                 ),
             ],

lib/screens/queue_tab_navigation.dart

@@ -309,10 +309,10 @@ extension _QueueTabNavigation on _QueueTabState {
     final controller = TextEditingController();
     final formKey = GlobalKey<FormState>();
 
-    final playlistName = await showDialog<String>(
+    final playlistName = await showAppDialog<String>(
       context: context,
       builder: (dialogContext) {
-        return AlertDialog(
+        return AppAlertDialog(
           title: Text(dialogContext.l10n.collectionCreatePlaylist),
           content: Form(
             key: formKey,
@@ -336,12 +336,12 @@ extension _QueueTabNavigation on _QueueTabState {
             ),
           ),
           actions: [
-            ExpressiveButton(
-              text: true,
+            AppDialogAction(
               onPressed: () => Navigator.of(dialogContext).pop(),
               child: Text(dialogContext.l10n.dialogCancel),
             ),
-            ExpressiveButton(
+            AppDialogAction(
+              filled: true,
               onPressed: () {
                 if (formKey.currentState?.validate() != true) return;
                 Navigator.of(dialogContext).pop(controller.text.trim());

lib/screens/setup_screen.dart

@@ -438,6 +438,7 @@ class _SetupScreenState extends ConsumerState<SetupScreen>
     final colorScheme = Theme.of(context).colorScheme;
     await showModalBottomSheet<void>(
       context: context,
+      sheetAnimationStyle: AppMotion.surfaceEntrance(context),
       useRootNavigator: true,
       backgroundColor: colorScheme.surfaceContainerHigh,
       builder: (ctx) => SafeArea(

lib/screens/track_metadata_actions.dart

@@ -56,6 +56,7 @@ extension _TrackMetadataFileActions on _TrackMetadataScreenState {
 
     final saved = await showModalBottomSheet<bool>(
       context: context,
+      sheetAnimationStyle: AppMotion.surfaceEntrance(context),
       useRootNavigator: true,
       isScrollControlled: true,
       backgroundColor: context.isMornye

lib/screens/track_metadata_convert.dart

@@ -281,6 +281,7 @@ extension _TrackMetadataConvertAndCueSplit on _TrackMetadataScreenState {
 
     showModalBottomSheet<void>(
       context: context,
+      sheetAnimationStyle: AppMotion.surfaceEntrance(context),
       useRootNavigator: true,
       isScrollControlled: true,
       backgroundColor: context.isMornye ? Colors.transparent : null,
@@ -382,6 +383,7 @@ extension _TrackMetadataConvertAndCueSplit on _TrackMetadataScreenState {
 
       showModalBottomSheet<void>(
         context: this.context,
+        sheetAnimationStyle: AppMotion.surfaceEntrance(this.context),
         useRootNavigator: true,
         isScrollControlled: true,
         builder: (sheetContext) {

lib/screens/track_metadata_edit_sheet.dart

@@ -9,6 +9,7 @@ import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:path/path.dart' as p;
 import 'package:spotiflac_android/controllers/metadata_editor_controller.dart';
 import 'package:spotiflac_android/l10n/l10n.dart';
+import 'package:spotiflac_android/theme/app_motion.dart';
 import 'package:spotiflac_android/providers/extension_provider.dart';
 import 'package:spotiflac_android/providers/settings_provider.dart';
 import 'package:spotiflac_android/services/metadata_cover_resources.dart';
@@ -120,6 +121,7 @@ class _EditMetadataSheetState extends State<EditMetadataSheet> {
     FocusScope.of(context).unfocus();
     final selectedId = await showModalBottomSheet<String>(
       context: context,
+      sheetAnimationStyle: AppMotion.surfaceEntrance(context),
       useRootNavigator: true,
       isScrollControlled: true,
       showDragHandle: true,
@@ -202,6 +204,7 @@ class _EditMetadataSheetState extends State<EditMetadataSheet> {
     final currentValue = _coverMaxDimension ?? 0;
     final selectedValue = await showModalBottomSheet<int>(
       context: context,
+      sheetAnimationStyle: AppMotion.surfaceEntrance(context),
       useRootNavigator: true,
       isScrollControlled: true,
       showDragHandle: true,

lib/screens/track_metadata_screen.dart

@@ -2,6 +2,7 @@ import 'dart:async';
 import 'dart:io';
 import 'dart:ui' show ImageFilter;
 import 'package:flutter/material.dart';
+import 'package:spotiflac_android/theme/app_motion.dart';
 import 'package:spotiflac_android/widgets/app_alert_dialog.dart';
 import 'package:flutter/cupertino.dart' show CupertinoButton, CupertinoIcons;
 import 'package:spotiflac_android/widgets/app_bottom_sheet.dart';

lib/screens/track_metadata_screen_menu.dart

@@ -268,6 +268,7 @@ extension _TrackMetadataMenu on _TrackMetadataScreenState {
     }
     showModalBottomSheet<void>(
       context: screenContext,
+      sheetAnimationStyle: AppMotion.surfaceEntrance(screenContext),
       useRootNavigator: true,
       backgroundColor: colorScheme.surfaceContainerHigh,
       isScrollControlled: true,

lib/services/batch_track_actions.dart

@@ -4,6 +4,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:spotiflac_android/l10n/l10n.dart';
+import 'package:spotiflac_android/theme/app_motion.dart';
 import 'package:spotiflac_android/models/unified_library_item.dart';
 import 'package:spotiflac_android/providers/download_history_provider.dart';
 import 'package:spotiflac_android/providers/local_library_provider.dart';
@@ -97,6 +98,7 @@ Future<void> showBatchConvertSheet(
 
   await showModalBottomSheet<void>(
     context: modalContext,
+    sheetAnimationStyle: AppMotion.surfaceEntrance(modalContext),
     useRootNavigator: true,
     isScrollControlled: true,
     backgroundColor: modalContext.isMornye ? Colors.transparent : null,

lib/utils/extension_auth_launcher.dart

@@ -8,6 +8,7 @@ import 'package:spotiflac_android/services/app_navigation_service.dart';
 import 'package:spotiflac_android/services/platform_bridge.dart';
 import 'package:spotiflac_android/utils/extension_session_callback.dart';
 import 'package:spotiflac_android/utils/logger.dart';
+import 'package:spotiflac_android/widgets/app_alert_dialog.dart';
 import 'package:spotiflac_android/widgets/app_loading_indicator.dart';
 import 'package:spotiflac_android/widgets/expressive_button.dart';
 import 'package:url_launcher/url_launcher.dart';
@@ -298,15 +299,14 @@ Future<bool> showExtensionVerificationHelpDialog(
       });
 
   try {
-    await showDialog<void>(
+    await showAppDialog<void>(
       context: context,
-      useRootNavigator: true,
       barrierDismissible: false,
       builder: (dialogContext) {
         activeDialogContext = dialogContext;
         final dialogL10n = dialogContext.l10n;
         return StatefulBuilder(
-          builder: (dialogContext, setDialogState) => AlertDialog(
+          builder: (dialogContext, setDialogState) => AppAlertDialog(
             title: Text(title),
             content: Column(
               mainAxisSize: MainAxisSize.min,

lib/widgets/artist_concerts_button.dart

@@ -2,7 +2,9 @@ import 'package:flutter/material.dart';
 import 'package:spotiflac_android/l10n/l10n.dart';
 import 'package:spotiflac_android/models/artist_concert.dart';
 import 'package:spotiflac_android/screens/artist_concerts_screen.dart';
+import 'package:spotiflac_android/theme/mornye_theme.dart';
 import 'package:spotiflac_android/widgets/animation_utils.dart';
+import 'package:spotiflac_android/widgets/expressive_button.dart';
 
 class ArtistConcertsButton extends StatelessWidget {
   const ArtistConcertsButton({
@@ -21,17 +23,36 @@ class ArtistConcertsButton extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     if (concerts.isEmpty) return const SizedBox.shrink();
-    return TextButton.icon(
-      onPressed: () => Navigator.of(context).push(
-        slidePageRoute<void>(
-          page: ArtistConcertsScreen(
-            artistName: artistName,
-            concerts: concerts,
-            coverUrl: coverUrl,
-            providerId: providerId,
-          ),
+    void open() => Navigator.of(context).push(
+      slidePageRoute<void>(
+        page: ArtistConcertsScreen(
+          artistName: artistName,
+          concerts: concerts,
+          coverUrl: coverUrl,
+          providerId: providerId,
         ),
       ),
+    );
+    final label = Text(
+      context.l10n.artistUpcomingConcerts,
+      maxLines: 1,
+      overflow: TextOverflow.ellipsis,
+    );
+    if (!context.isMornye) {
+      // A compact tonal pill with the expressive press morph.
+      return ExpressiveButton(
+        tonal: true,
+        onPressed: open,
+        icon: const Icon(Icons.confirmation_number_rounded, size: 16),
+        style: FilledButton.styleFrom(
+          minimumSize: const Size(0, 36),
+          padding: const EdgeInsets.symmetric(horizontal: 14),
+        ),
+        child: label,
+      );
+    }
+    return TextButton.icon(
+      onPressed: open,
       style: TextButton.styleFrom(
         foregroundColor: Colors.white,
         backgroundColor: Colors.black.withValues(alpha: 0.35),
@@ -45,11 +66,7 @@ class ArtistConcertsButton extends StatelessWidget {
         textStyle: const TextStyle(fontSize: 13, fontWeight: FontWeight.w600),
       ),
       icon: const Icon(Icons.confirmation_number_rounded, size: 16),
-      label: Text(
-        context.l10n.artistUpcomingConcerts,
-        maxLines: 1,
-        overflow: TextOverflow.ellipsis,
-      ),
+      label: label,
     );
   }
 }

lib/widgets/download_service_picker.dart

@@ -4,6 +4,7 @@ import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:spotiflac_android/providers/extension_provider.dart';
+import 'package:spotiflac_android/theme/app_motion.dart';
 import 'package:spotiflac_android/providers/settings_provider.dart';
 import 'package:spotiflac_android/l10n/l10n.dart';
 import 'package:spotiflac_android/theme/mornye_icons.dart';
@@ -44,6 +45,7 @@ class DownloadServicePicker extends ConsumerStatefulWidget {
 
     showModalBottomSheet<void>(
       context: context,
+      sheetAnimationStyle: AppMotion.surfaceEntrance(context),
       useRootNavigator: true,
       backgroundColor: mornye
           ? Colors.transparent
@@ -57,7 +59,9 @@ class DownloadServicePicker extends ConsumerStatefulWidget {
           : null,
       isScrollControlled: true,
       showDragHandle: !mornye,
+      // Explicit constraints replace the theme's, so repeat its tablet width.
       constraints: BoxConstraints(
+        maxWidth: 640,
         maxHeight: MediaQuery.sizeOf(context).height * 0.88,
       ),
       builder: (context) {

lib/widgets/player_details_sheet.dart

@@ -2,6 +2,7 @@ import 'package:audio_service/audio_service.dart';
 import 'package:flutter/material.dart';
 import 'package:spotiflac_android/controllers/player_metadata_controller.dart';
 import 'package:spotiflac_android/l10n/l10n.dart';
+import 'package:spotiflac_android/theme/app_motion.dart';
 import 'package:spotiflac_android/theme/mornye_theme.dart';
 import 'package:spotiflac_android/utils/isrc_utils.dart';
 import 'package:spotiflac_android/widgets/app_icon.dart';
@@ -19,6 +20,7 @@ Future<void> showPlayerDetailsSheet(
   final metadataFuture = metadata.readDetails(mediaItem);
   return showModalBottomSheet<void>(
     context: context,
+    sheetAnimationStyle: AppMotion.surfaceEntrance(context),
     isScrollControlled: true,
     useRootNavigator: mornye,
     showDragHandle: !mornye,

lib/widgets/playlist_picker_sheet.dart

@@ -4,6 +4,7 @@ import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:spotiflac_android/l10n/l10n.dart';
+import 'package:spotiflac_android/theme/app_motion.dart';
 import 'package:spotiflac_android/models/track.dart';
 import 'package:spotiflac_android/providers/library_collections_provider.dart';
 import 'package:spotiflac_android/theme/mornye_theme.dart';
@@ -39,6 +40,7 @@ Future<void> showAddTracksToPlaylistSheet(
 
   await showModalBottomSheet<void>(
     context: context,
+    sheetAnimationStyle: AppMotion.surfaceEntrance(context),
     useRootNavigator: true,
     showDragHandle: !context.isMornye,
     backgroundColor: context.isMornye ? Colors.transparent : null,

lib/widgets/track_collection_quick_actions.dart

@@ -1,6 +1,7 @@
 import 'package:cached_network_image/cached_network_image.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/cupertino.dart';
+import 'package:spotiflac_android/theme/app_motion.dart';
 import 'package:spotiflac_android/theme/mornye_theme.dart';
 import 'package:flutter/services.dart';
 import 'package:spotiflac_android/widgets/app_bottom_sheet.dart';
@@ -49,6 +50,7 @@ class TrackCollectionQuickActions extends ConsumerWidget {
     }
     showModalBottomSheet<void>(
       context: context,
+      sheetAnimationStyle: AppMotion.surfaceEntrance(context),
       useRootNavigator: true,
       isScrollControlled: true,
       backgroundColor: colorScheme.surfaceContainerHigh,