feat(ui): design token discipline, accessibility and i18n pass

- Replace all hardcoded Color literals outside lib/tema with theme tokens (new static brand palette in PluriWaveTokens); media notification uses the brand color instead of the Material default purple
- Favorite button on station cards grows to a 48dp target and becomes an independent semantics node for screen readers (Semantics container fix)
- All flutter_animate call sites route through the PluriAnimate reduced-motion gate (zero direct .animate() left)
- Locale-aware short dates via intl DateFormat (new lib/l10n/formato_fechas.dart) replacing the hardcoded DD/MM/YYYY; proper plural messages for the favorites counter; example stream URL as a localized key - all 13 locales
- Rounded shimmer placeholders matching card radii; shimmer loading state in search instead of a bare spinner; rounded icon variants unified in settings; bottom-sheet conventions on the custom station form
- Fix latent debug crash: vacation editor read AppLocalizations in initState
- 11 new tests (121 total green), flutter analyze clean

lib/l10n/app_ar.arb

@@ -612,5 +612,9 @@
   "weekdayShortThursday": "الخميس",
   "weekdayShortFriday": "الجمعة",
   "weekdayShortSaturday": "السبت",
-  "weekdayShortSunday": "الأحد"
+  "weekdayShortSunday": "الأحد",
+  "stationCount": "{count, plural, one{محطة واحدة} two{محطتان} few{{count} محطات} other{{count} محطة}}",
+  "alarmIconLabel": "منبه موسيقي",
+  "vacationIconLabel": "وضع الإجازة",
+  "streamUrlHint": "https://stream.example.com:8000/radio"
 }

lib/l10n/app_bn.arb

@@ -612,5 +612,9 @@
   "weekdayShortThursday": "বৃহস্পতি",
   "weekdayShortFriday": "শুক্র",
   "weekdayShortSaturday": "শনি",
-  "weekdayShortSunday": "রবি"
+  "weekdayShortSunday": "রবি",
+  "stationCount": "{count, plural, =1{১টি স্টেশন} other{{count}টি স্টেশন}}",
+  "alarmIconLabel": "মিউজিক অ্যালার্ম",
+  "vacationIconLabel": "ছুটির মোড",
+  "streamUrlHint": "https://stream.example.com:8000/radio"
 }

lib/l10n/app_de.arb

@@ -612,5 +612,9 @@
   "weekdayShortThursday": "Do",
   "weekdayShortFriday": "Fr",
   "weekdayShortSaturday": "Sa",
-  "weekdayShortSunday": "So"
+  "weekdayShortSunday": "So",
+  "stationCount": "{count, plural, =1{1 Sender} other{{count} Sender}}",
+  "alarmIconLabel": "Musikwecker",
+  "vacationIconLabel": "Urlaubsmodus",
+  "streamUrlHint": "https://stream.example.com:8000/radio"
 }

lib/l10n/app_en.arb

@@ -612,5 +612,9 @@
   "weekdayShortThursday": "Thu",
   "weekdayShortFriday": "Fri",
   "weekdayShortSaturday": "Sat",
-  "weekdayShortSunday": "Sun"
+  "weekdayShortSunday": "Sun",
+  "stationCount": "{count, plural, =1{1 station} other{{count} stations}}",
+  "alarmIconLabel": "Musical alarm",
+  "vacationIconLabel": "Vacation mode",
+  "streamUrlHint": "https://stream.example.com:8000/radio"
 }

lib/l10n/app_es.arb

@@ -568,6 +568,16 @@
   "weekdayShortThursday": "Jue",
   "weekdayShortFriday": "Vie",
   "weekdayShortSaturday": "Sáb",
-  "weekdayShortSunday": "Dom"
-
+  "weekdayShortSunday": "Dom",
+  "stationCount": "{count, plural, =1{1 emisora} other{{count} emisoras}}",
+  "alarmIconLabel": "Alarma musical",
+  "vacationIconLabel": "Modo vacaciones",
+  "streamUrlHint": "https://stream.example.com:8000/radio",
+  "@stationCount": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  }
 }

lib/l10n/app_fr.arb

@@ -612,5 +612,9 @@
   "weekdayShortThursday": "Jeu",
   "weekdayShortFriday": "Ven",
   "weekdayShortSaturday": "Sam",
-  "weekdayShortSunday": "Dim"
+  "weekdayShortSunday": "Dim",
+  "stationCount": "{count, plural, =1{1 station} other{{count} stations}}",
+  "alarmIconLabel": "Alarme musicale",
+  "vacationIconLabel": "Mode vacances",
+  "streamUrlHint": "https://stream.example.com:8000/radio"
 }

lib/l10n/app_hi.arb

@@ -612,5 +612,9 @@
   "weekdayShortThursday": "गुरु",
   "weekdayShortFriday": "शुक्र",
   "weekdayShortSaturday": "शनि",
-  "weekdayShortSunday": "रवि"
+  "weekdayShortSunday": "रवि",
+  "stationCount": "{count, plural, =1{1 स्टेशन} other{{count} स्टेशन}}",
+  "alarmIconLabel": "संगीत अलार्म",
+  "vacationIconLabel": "अवकाश मोड",
+  "streamUrlHint": "https://stream.example.com:8000/radio"
 }

lib/l10n/app_id.arb

@@ -612,5 +612,9 @@
   "weekdayShortThursday": "Kam",
   "weekdayShortFriday": "Jum",
   "weekdayShortSaturday": "Sab",
-  "weekdayShortSunday": "Min"
+  "weekdayShortSunday": "Min",
+  "stationCount": "{count, plural, other{{count} stasiun}}",
+  "alarmIconLabel": "Alarm musik",
+  "vacationIconLabel": "Mode liburan",
+  "streamUrlHint": "https://stream.example.com:8000/radio"
 }

lib/l10n/app_it.arb

@@ -612,5 +612,9 @@
   "weekdayShortThursday": "Gio",
   "weekdayShortFriday": "Ven",
   "weekdayShortSaturday": "Sab",
-  "weekdayShortSunday": "Dom"
+  "weekdayShortSunday": "Dom",
+  "stationCount": "{count, plural, =1{1 stazione} other{{count} stazioni}}",
+  "alarmIconLabel": "Sveglia musicale",
+  "vacationIconLabel": "Modalità vacanza",
+  "streamUrlHint": "https://stream.example.com:8000/radio"
 }

lib/l10n/app_ja.arb

@@ -612,5 +612,9 @@
   "weekdayShortThursday": "木",
   "weekdayShortFriday": "金",
   "weekdayShortSaturday": "土",
-  "weekdayShortSunday": "日"
+  "weekdayShortSunday": "日",
+  "stationCount": "{count, plural, other{{count}局}}",
+  "alarmIconLabel": "ミュージックアラーム",
+  "vacationIconLabel": "休暇モード",
+  "streamUrlHint": "https://stream.example.com:8000/radio"
 }

lib/l10n/app_pt.arb

@@ -612,5 +612,9 @@
   "weekdayShortThursday": "Qui",
   "weekdayShortFriday": "Sex",
   "weekdayShortSaturday": "Sáb",
-  "weekdayShortSunday": "Dom"
+  "weekdayShortSunday": "Dom",
+  "stationCount": "{count, plural, =1{1 estação} other{{count} estações}}",
+  "alarmIconLabel": "Alarme musical",
+  "vacationIconLabel": "Modo férias",
+  "streamUrlHint": "https://stream.example.com:8000/radio"
 }

lib/l10n/app_ru.arb

@@ -612,5 +612,9 @@
   "weekdayShortThursday": "Чт",
   "weekdayShortFriday": "Пт",
   "weekdayShortSaturday": "Сб",
-  "weekdayShortSunday": "Вс"
+  "weekdayShortSunday": "Вс",
+  "stationCount": "{count, plural, one{{count} станция} few{{count} станции} other{{count} станций}}",
+  "alarmIconLabel": "Музыкальный будильник",
+  "vacationIconLabel": "Режим отпуска",
+  "streamUrlHint": "https://stream.example.com:8000/radio"
 }

lib/l10n/app_zh.arb

@@ -612,5 +612,9 @@
   "weekdayShortThursday": "周四",
   "weekdayShortFriday": "周五",
   "weekdayShortSaturday": "周六",
-  "weekdayShortSunday": "周日"
+  "weekdayShortSunday": "周日",
+  "stationCount": "{count, plural, other{{count} 个电台}}",
+  "alarmIconLabel": "音乐闹钟",
+  "vacationIconLabel": "假期模式",
+  "streamUrlHint": "https://stream.example.com:8000/radio"
 }

lib/l10n/formato_fechas.dart

@@ -0,0 +1,13 @@
+import 'package:intl/intl.dart';
+
+/// Locale-aware short date (S5-R4).
+///
+/// Replaces the old hardcoded `DD/MM/YYYY` pattern, which was wrong for
+/// locales like en-US (M/D/Y) or ja (Y/M/D). [localeTag] accepts both
+/// BCP-47 ('en-US') and ICU ('en_US') forms — intl canonicalizes them.
+///
+/// Date symbols for the active locale are loaded by
+/// GlobalMaterialLocalizations, so any widget below MaterialApp can call
+/// this safely.
+String fechaCortaLocalizada(String localeTag, DateTime fecha) =>
+    DateFormat.yMd(localeTag).format(fecha);

lib/l10n/gen/app_localizations.dart

@@ -2245,6 +2245,30 @@ abstract class AppLocalizations {
   /// In es, this message translates to:
   /// **'Dom'**
   String get weekdayShortSunday;
+
+  /// No description provided for @stationCount.
+  ///
+  /// In es, this message translates to:
+  /// **'{count, plural, =1{1 emisora} other{{count} emisoras}}'**
+  String stationCount(int count);
+
+  /// No description provided for @alarmIconLabel.
+  ///
+  /// In es, this message translates to:
+  /// **'Alarma musical'**
+  String get alarmIconLabel;
+
+  /// No description provided for @vacationIconLabel.
+  ///
+  /// In es, this message translates to:
+  /// **'Modo vacaciones'**
+  String get vacationIconLabel;
+
+  /// No description provided for @streamUrlHint.
+  ///
+  /// In es, this message translates to:
+  /// **'https://stream.example.com:8000/radio'**
+  String get streamUrlHint;
 }
 
 class _AppLocalizationsDelegate

lib/l10n/gen/app_localizations_ar.dart

@@ -1203,4 +1203,26 @@ class AppLocalizationsAr extends AppLocalizations {
 
   @override
   String get weekdayShortSunday => 'الأحد';
+
+  @override
+  String stationCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count محطة',
+      few: '$count محطات',
+      two: 'محطتان',
+      one: 'محطة واحدة',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get alarmIconLabel => 'منبه موسيقي';
+
+  @override
+  String get vacationIconLabel => 'وضع الإجازة';
+
+  @override
+  String get streamUrlHint => 'https://stream.example.com:8000/radio';
 }

lib/l10n/gen/app_localizations_bn.dart

@@ -1212,4 +1212,24 @@ class AppLocalizationsBn extends AppLocalizations {
 
   @override
   String get weekdayShortSunday => 'রবি';
+
+  @override
+  String stationCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$countটি স্টেশন',
+      one: '১টি স্টেশন',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get alarmIconLabel => 'মিউজিক অ্যালার্ম';
+
+  @override
+  String get vacationIconLabel => 'ছুটির মোড';
+
+  @override
+  String get streamUrlHint => 'https://stream.example.com:8000/radio';
 }

lib/l10n/gen/app_localizations_de.dart

@@ -1222,4 +1222,24 @@ class AppLocalizationsDe extends AppLocalizations {
 
   @override
   String get weekdayShortSunday => 'So';
+
+  @override
+  String stationCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count Sender',
+      one: '1 Sender',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get alarmIconLabel => 'Musikwecker';
+
+  @override
+  String get vacationIconLabel => 'Urlaubsmodus';
+
+  @override
+  String get streamUrlHint => 'https://stream.example.com:8000/radio';
 }

lib/l10n/gen/app_localizations_en.dart

@@ -1208,4 +1208,24 @@ class AppLocalizationsEn extends AppLocalizations {
 
   @override
   String get weekdayShortSunday => 'Sun';
+
+  @override
+  String stationCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count stations',
+      one: '1 station',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get alarmIconLabel => 'Musical alarm';
+
+  @override
+  String get vacationIconLabel => 'Vacation mode';
+
+  @override
+  String get streamUrlHint => 'https://stream.example.com:8000/radio';
 }

lib/l10n/gen/app_localizations_es.dart

@@ -1217,4 +1217,24 @@ class AppLocalizationsEs extends AppLocalizations {
 
   @override
   String get weekdayShortSunday => 'Dom';
+
+  @override
+  String stationCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count emisoras',
+      one: '1 emisora',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get alarmIconLabel => 'Alarma musical';
+
+  @override
+  String get vacationIconLabel => 'Modo vacaciones';
+
+  @override
+  String get streamUrlHint => 'https://stream.example.com:8000/radio';
 }

lib/l10n/gen/app_localizations_fr.dart

@@ -1227,4 +1227,24 @@ class AppLocalizationsFr extends AppLocalizations {
 
   @override
   String get weekdayShortSunday => 'Dim';
+
+  @override
+  String stationCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count stations',
+      one: '1 station',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get alarmIconLabel => 'Alarme musicale';
+
+  @override
+  String get vacationIconLabel => 'Mode vacances';
+
+  @override
+  String get streamUrlHint => 'https://stream.example.com:8000/radio';
 }

lib/l10n/gen/app_localizations_hi.dart

@@ -1211,4 +1211,24 @@ class AppLocalizationsHi extends AppLocalizations {
 
   @override
   String get weekdayShortSunday => 'रवि';
+
+  @override
+  String stationCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count स्टेशन',
+      one: '1 स्टेशन',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get alarmIconLabel => 'संगीत अलार्म';
+
+  @override
+  String get vacationIconLabel => 'अवकाश मोड';
+
+  @override
+  String get streamUrlHint => 'https://stream.example.com:8000/radio';
 }

lib/l10n/gen/app_localizations_id.dart

@@ -1217,4 +1217,23 @@ class AppLocalizationsId extends AppLocalizations {
 
   @override
   String get weekdayShortSunday => 'Min';
+
+  @override
+  String stationCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count stasiun',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get alarmIconLabel => 'Alarm musik';
+
+  @override
+  String get vacationIconLabel => 'Mode liburan';
+
+  @override
+  String get streamUrlHint => 'https://stream.example.com:8000/radio';
 }

lib/l10n/gen/app_localizations_it.dart

@@ -1222,4 +1222,24 @@ class AppLocalizationsIt extends AppLocalizations {
 
   @override
   String get weekdayShortSunday => 'Dom';
+
+  @override
+  String stationCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count stazioni',
+      one: '1 stazione',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get alarmIconLabel => 'Sveglia musicale';
+
+  @override
+  String get vacationIconLabel => 'Modalità vacanza';
+
+  @override
+  String get streamUrlHint => 'https://stream.example.com:8000/radio';
 }

lib/l10n/gen/app_localizations_ja.dart

@@ -1173,4 +1173,23 @@ class AppLocalizationsJa extends AppLocalizations {
 
   @override
   String get weekdayShortSunday => '日';
+
+  @override
+  String stationCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count局',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get alarmIconLabel => 'ミュージックアラーム';
+
+  @override
+  String get vacationIconLabel => '休暇モード';
+
+  @override
+  String get streamUrlHint => 'https://stream.example.com:8000/radio';
 }

lib/l10n/gen/app_localizations_pt.dart

@@ -1214,4 +1214,24 @@ class AppLocalizationsPt extends AppLocalizations {
 
   @override
   String get weekdayShortSunday => 'Dom';
+
+  @override
+  String stationCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count estações',
+      one: '1 estação',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get alarmIconLabel => 'Alarme musical';
+
+  @override
+  String get vacationIconLabel => 'Modo férias';
+
+  @override
+  String get streamUrlHint => 'https://stream.example.com:8000/radio';
 }

lib/l10n/gen/app_localizations_ru.dart

@@ -1217,4 +1217,25 @@ class AppLocalizationsRu extends AppLocalizations {
 
   @override
   String get weekdayShortSunday => 'Вс';
+
+  @override
+  String stationCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count станций',
+      few: '$count станции',
+      one: '$count станция',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get alarmIconLabel => 'Музыкальный будильник';
+
+  @override
+  String get vacationIconLabel => 'Режим отпуска';
+
+  @override
+  String get streamUrlHint => 'https://stream.example.com:8000/radio';
 }

lib/l10n/gen/app_localizations_zh.dart

@@ -1168,4 +1168,23 @@ class AppLocalizationsZh extends AppLocalizations {
 
   @override
   String get weekdayShortSunday => '周日';
+
+  @override
+  String stationCount(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count 个电台',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get alarmIconLabel => '音乐闹钟';
+
+  @override
+  String get vacationIconLabel => '假期模式';
+
+  @override
+  String get streamUrlHint => 'https://stream.example.com:8000/radio';
 }

lib/main.dart

@@ -8,9 +8,20 @@ import 'package:shared_preferences/shared_preferences.dart';
 import 'app.dart';
 import 'servicios/servicio_audio.dart';
 import 'servicios/servicio_audio_session.dart';
+import 'tema/pluriwave_tokens.dart';
 
 const _anchoMinimoLandscape = 600.0;
 
+/// S5-R8: media notification accent uses the brand color, not the M3
+/// default purple. Top-level const so tests can assert it.
+const configuracionAudioService = AudioServiceConfig(
+  androidNotificationChannelId: 'es.freetimelab.pluriwave.audio',
+  androidNotificationChannelName: 'PluriWave Radio',
+  androidNotificationOngoing: true,
+  androidStopForegroundOnPause: true,
+  notificationColor: PluriWaveTokens.brand,
+);
+
 Future<void> main() async {
   WidgetsFlutterBinding.ensureInitialized();
   await _aplicarPoliticaOrientacion();
@@ -21,13 +32,7 @@ Future<void> main() async {
 
   final handler = await AudioService.init(
     builder: () => PluriWaveAudioHandler(),
-    config: const AudioServiceConfig(
-      androidNotificationChannelId: 'es.freetimelab.pluriwave.audio',
-      androidNotificationChannelName: 'PluriWave Radio',
-      androidNotificationOngoing: true,
-      androidStopForegroundOnPause: true,
-      notificationColor: Color(0xFF6750A4),
-    ),
+    config: configuracionAudioService,
   );
   registrarHandler(handler);
 

lib/pantallas/pantalla_ajustes.dart

@@ -210,7 +210,7 @@ class _SeccionGrabaciones extends StatelessWidget {
         children: [
           Row(
             children: [
-              const Icon(Icons.radio_button_checked),
+              const Icon(Icons.radio_button_checked_rounded),
               const SizedBox(width: 12),
               Text(
                 l10n.recordingsSectionTitle,
@@ -591,7 +591,7 @@ class _SeccionEcualizador extends StatelessWidget {
             children: [
               Row(
                 children: [
-                  const Icon(Icons.equalizer),
+                  const Icon(Icons.equalizer_rounded),
                   const SizedBox(width: 12),
                   Text(
                     l10n.equalizerTitle,
@@ -994,7 +994,7 @@ class _SeccionEmisoras extends StatelessWidget {
         children: [
           Row(
             children: [
-              const Icon(Icons.add_circle_outline),
+              const Icon(Icons.add_circle_outline_rounded),
               const SizedBox(width: 12),
               Text(
                 AppLocalizations.of(context).customStationsTitle,
@@ -1002,7 +1002,7 @@ class _SeccionEmisoras extends StatelessWidget {
               ),
               const Spacer(),
               TextButton.icon(
-                icon: const Icon(Icons.add),
+                icon: const Icon(Icons.add_rounded),
                 label: Text(AppLocalizations.of(context).customStationsAdd),
                 onPressed: () => _mostrarFormularioAnadir(context),
               ),
@@ -1013,14 +1013,18 @@ class _SeccionEmisoras extends StatelessWidget {
               padding: const EdgeInsets.only(top: 8),
               child: Text(
                 AppLocalizations.of(context).customStationsEmpty,
-                style: const TextStyle(color: Colors.grey),
+                style: TextStyle(
+                  color: Theme.of(
+                    context,
+                  ).colorScheme.onSurface.withValues(alpha: 0.6),
+                ),
               ),
             )
           else
             for (final emisora in custom)
               ListTile(
                 contentPadding: EdgeInsets.zero,
-                leading: const Icon(Icons.radio),
+                leading: const Icon(Icons.radio_rounded),
                 title: Text(
                   localizedStationName(
                     AppLocalizations.of(context),
@@ -1036,13 +1040,13 @@ class _SeccionEmisoras extends StatelessWidget {
                   mainAxisSize: MainAxisSize.min,
                   children: [
                     IconButton(
-                      icon: const Icon(Icons.play_arrow),
+                      icon: const Icon(Icons.play_arrow_rounded),
                       tooltip: AppLocalizations.of(context).playAction,
                       onPressed:
                           () => context.read<EstadoRadio>().reproducir(emisora),
                     ),
                     IconButton(
-                      icon: const Icon(Icons.delete_outline),
+                      icon: const Icon(Icons.delete_outline_rounded),
                       tooltip: AppLocalizations.of(context).deleteAction,
                       onPressed:
                           () => context
@@ -1061,6 +1065,8 @@ class _SeccionEmisoras extends StatelessWidget {
     await showModalBottomSheet(
       context: context,
       isScrollControlled: true,
+      useSafeArea: true,
+      showDragHandle: true,
       builder: (ctx) => const _FormularioEmisora(),
     );
   }
@@ -1142,7 +1148,7 @@ class _FormularioEmisoraState extends State<_FormularioEmisora> {
               controller: _urlCtrl,
               decoration: InputDecoration(
                 labelText: AppLocalizations.of(context).streamUrlLabel,
-                hintText: 'http://stream.ejemplo.com:8000/radio',
+                hintText: AppLocalizations.of(context).streamUrlHint,
                 border: const OutlineInputBorder(),
               ),
               keyboardType: TextInputType.url,
@@ -1340,7 +1346,7 @@ class _SeccionInfo extends StatelessWidget {
                   builder:
                       (ctx, snap) => ListTile(
                         contentPadding: EdgeInsets.zero,
-                        leading: const Icon(Icons.favorite_outline),
+                        leading: const Icon(Icons.favorite_outline_rounded),
                         title: Text(
                           AppLocalizations.of(ctx).savedFavoritesTitle,
                         ),
@@ -1366,7 +1372,10 @@ class _SeccionInfo extends StatelessWidget {
                   subtitle: Text(
                     AppLocalizations.of(ctx).stationFilterSubtitle,
                   ),
-                  trailing: const Icon(Icons.check_circle, color: Colors.green),
+                  trailing: Icon(
+                    Icons.check_circle_rounded,
+                    color: Theme.of(ctx).colorScheme.secondary,
+                  ),
                 ),
                 ListTile(
                   contentPadding: EdgeInsets.zero,
@@ -1375,7 +1384,10 @@ class _SeccionInfo extends StatelessWidget {
                   subtitle: Text(
                     AppLocalizations.of(ctx).backgroundAudioSubtitle,
                   ),
-                  trailing: const Icon(Icons.check_circle, color: Colors.green),
+                  trailing: Icon(
+                    Icons.check_circle_rounded,
+                    color: Theme.of(ctx).colorScheme.secondary,
+                  ),
                 ),
               ],
             ),

lib/pantallas/pantalla_alarmas.dart

@@ -4,11 +4,14 @@ import 'package:provider/provider.dart';
 import '../estado/estado_alarmas.dart';
 import '../estado/estado_radio.dart';
 import '../l10n/display_names.dart';
+import '../l10n/formato_fechas.dart';
 import '../l10n/app_localizations_ext.dart';
 import '../l10n/gen/app_localizations.dart';
 import '../modelos/alarma_musical.dart';
 import '../modelos/emisora.dart';
 import '../servicios/servicio_programacion_alarmas.dart';
+import '../tema/pluriwave_theme.dart';
+import '../tema/pluriwave_tokens.dart';
 import '../widgets/pluri_glass_surface.dart';
 import '../widgets/pluri_icon.dart';
 import '../widgets/pluri_layout.dart';
@@ -92,10 +95,14 @@ class _PanelProximaAlarma extends StatelessWidget {
     final proximaProgramable = proxima?.proximaProgramable;
 
     return PluriGlassSurface(
-      glowColor: const Color(0xFFFFB86B).withValues(alpha: 0.28),
+      glowColor: context.pluriTokens.warmCoral.withValues(alpha: 0.28),
       child: Row(
         children: [
-          const _AssetIcon('assets/icons/alarmas/alarm_music.png', size: 72),
+          _AssetIcon(
+            'assets/icons/alarmas/alarm_music.png',
+            size: 72,
+            semanticLabel: l10n.alarmIconLabel,
+          ),
           const SizedBox(width: 14),
           Expanded(
             child: Column(
@@ -142,15 +149,16 @@ class _TarjetaAlarma extends StatelessWidget {
     final excepcion = estado.ultimaExcepcionPara(alarma.id);
     final mensajeVacaciones = _mensajeVacaciones(l10n, estado.vacaciones);
     return PluriGlassSurface(
-      glowColor: const Color(0xFF22D3EE).withValues(alpha: 0.22),
+      glowColor: context.pluriTokens.electricMagenta.withValues(alpha: 0.22),
       child: Column(
         crossAxisAlignment: CrossAxisAlignment.start,
         children: [
           Row(
             children: [
-              const _AssetIcon(
+              _AssetIcon(
                 'assets/icons/alarmas/alarm_music.png',
                 size: 64,
+                semanticLabel: l10n.alarmIconLabel,
               ),
               const SizedBox(width: 12),
               Expanded(
@@ -435,9 +443,10 @@ class _EditorAlarmaSheetState extends State<_EditorAlarmaSheet> {
               children: [
                 Row(
                   children: [
-                    const _AssetIcon(
+                    _AssetIcon(
                       'assets/icons/alarmas/alarm_music.png',
                       size: 58,
+                      semanticLabel: l10n.alarmIconLabel,
                     ),
                     const SizedBox(width: 12),
                     Expanded(
@@ -477,7 +486,7 @@ class _EditorAlarmaSheetState extends State<_EditorAlarmaSheet> {
                       child: _PickerButton(
                         icon: Icons.event_rounded,
                         label: l10n.dateField,
-                        value: _fechaCorta(_fecha),
+                        value: _fechaCorta(l10n, _fecha),
                         onTap:
                             _tipo == TipoProgramacionAlarma.unica
                                 ? _elegirFecha
@@ -663,9 +672,10 @@ class _EditorAlarmaSheetState extends State<_EditorAlarmaSheet> {
                   value: _sonarEnVacaciones,
                   onChanged:
                       (value) => setState(() => _sonarEnVacaciones = value),
-                  secondary: const _AssetIcon(
+                  secondary: _AssetIcon(
                     'assets/icons/alarmas/vacation_wave.png',
                     size: 42,
+                    semanticLabel: l10n.vacationIconLabel,
                   ),
                   title: Text(l10n.playDuringVacations),
                   subtitle: Text(l10n.playDuringVacationsHint),
@@ -1010,15 +1020,16 @@ class _PanelVacaciones extends StatelessWidget {
     final vacaciones = [...estado.vacaciones]
       ..sort((a, b) => a.inicioDia.compareTo(b.inicioDia));
     return PluriGlassSurface(
-      glowColor: const Color(0xFF60A5FA).withValues(alpha: 0.22),
+      glowColor: PluriWaveTokens.skyBlue.withValues(alpha: 0.22),
       child: Column(
         crossAxisAlignment: CrossAxisAlignment.start,
         children: [
           Row(
             children: [
-              const _AssetIcon(
+              _AssetIcon(
                 'assets/icons/alarmas/vacation_wave.png',
                 size: 48,
+                semanticLabel: l10n.vacationIconLabel,
               ),
               const SizedBox(width: 10),
               Expanded(
@@ -1047,7 +1058,7 @@ class _PanelVacaciones extends StatelessWidget {
                 leading: const Icon(Icons.event_busy_rounded),
                 title: Text(_nombreVisibleVacaciones(l10n, rango)),
                 subtitle: Text(
-                  '${_fechaCorta(rango.inicioDia)} → ${_fechaCorta(rango.finDia)}',
+                  '${_fechaCorta(l10n, rango.inicioDia)} → ${_fechaCorta(l10n, rango.finDia)}',
                 ),
                 trailing: IconButton(
                   tooltip: l10n.deleteRangeTooltip,
@@ -1079,7 +1090,9 @@ class _EditorVacacionesSheet extends StatefulWidget {
 }
 
 class _EditorVacacionesSheetState extends State<_EditorVacacionesSheet> {
-  late final TextEditingController _nombreController;
+  // Created lazily: AppLocalizations.of(context) cannot be read in
+  // initState (inherited-widget lookup assert in debug builds).
+  TextEditingController? _nombreController;
   late DateTime _inicio;
   late DateTime _fin;
 
@@ -1089,14 +1102,19 @@ class _EditorVacacionesSheetState extends State<_EditorVacacionesSheet> {
     final hoy = DateTime.now();
     _inicio = DateTime(hoy.year, hoy.month, hoy.day);
     _fin = _inicio.add(const Duration(days: 2));
-    _nombreController = TextEditingController(
+  }
+
+  @override
+  void didChangeDependencies() {
+    super.didChangeDependencies();
+    _nombreController ??= TextEditingController(
       text: AppLocalizations.of(context).vacationsDefaultName,
     );
   }
 
   @override
   void dispose() {
-    _nombreController.dispose();
+    _nombreController?.dispose();
     super.dispose();
   }
 
@@ -1131,7 +1149,7 @@ class _EditorVacacionesSheetState extends State<_EditorVacacionesSheet> {
                   child: _PickerButton(
                     icon: Icons.play_arrow_rounded,
                     label: l10n.startLabel,
-                    value: _fechaCorta(_inicio),
+                    value: _fechaCorta(l10n, _inicio),
                     onTap: () => _elegirFecha(esInicio: true),
                   ),
                 ),
@@ -1140,7 +1158,7 @@ class _EditorVacacionesSheetState extends State<_EditorVacacionesSheet> {
                   child: _PickerButton(
                     icon: Icons.stop_rounded,
                     label: l10n.endLabel,
-                    value: _fechaCorta(_fin),
+                    value: _fechaCorta(l10n, _fin),
                     onTap: () => _elegirFecha(esInicio: false),
                   ),
                 ),
@@ -1183,7 +1201,7 @@ class _EditorVacacionesSheetState extends State<_EditorVacacionesSheet> {
     final rango = estado.servicio.crearRangoVacaciones(
       inicio: _inicio,
       fin: _fin,
-      nombre: _nombreController.text.trim(),
+      nombre: _nombreController?.text.trim() ?? '',
     );
     await estado.crearRangoVacaciones(rango);
     if (mounted) Navigator.pop(context);
@@ -1191,11 +1209,15 @@ class _EditorVacacionesSheetState extends State<_EditorVacacionesSheet> {
 }
 
 class _AssetIcon extends StatelessWidget {
-  const _AssetIcon(this.asset, {this.size = 44});
+  const _AssetIcon(this.asset, {this.size = 44, this.semanticLabel});
 
   final String asset;
   final double size;
 
+  /// S5-R2: meaningful images carry a label; without one the image is
+  /// treated as decorative and excluded from the semantics tree.
+  final String? semanticLabel;
+
   @override
   Widget build(BuildContext context) {
     return Image.asset(
@@ -1203,6 +1225,8 @@ class _AssetIcon extends StatelessWidget {
       width: size,
       height: size,
       fit: BoxFit.contain,
+      semanticLabel: semanticLabel,
+      excludeFromSemantics: semanticLabel == null,
       errorBuilder:
           (_, __, ___) => Icon(Icons.music_note_rounded, size: size * 0.65),
     );
@@ -1301,7 +1325,11 @@ class _EmptyAlarmas extends StatelessWidget {
     return PluriGlassSurface(
       child: Column(
         children: [
-          const _AssetIcon('assets/icons/alarmas/alarm_music.png', size: 92),
+          _AssetIcon(
+            'assets/icons/alarmas/alarm_music.png',
+            size: 92,
+            semanticLabel: l10n.alarmIconLabel,
+          ),
           const SizedBox(height: 12),
           Text(l10n.noAlarmsYetTitle),
           const SizedBox(height: 4),
@@ -1326,7 +1354,7 @@ String _hora(AlarmaMusical alarma) =>
 String _programacion(AppLocalizations l10n, AlarmaMusical alarma) {
   return switch (alarma.tipoProgramacion) {
     TipoProgramacionAlarma.unica => l10n.alarmScheduleOnce(
-      _fechaCorta(alarma.fechaUnica ?? DateTime.now()),
+      _fechaCorta(l10n, alarma.fechaUnica ?? DateTime.now()),
     ),
     TipoProgramacionAlarma.diaria => l10n.dailyOption,
     TipoProgramacionAlarma.diasSemana => l10n.alarmScheduleWeekdays(
@@ -1349,5 +1377,6 @@ String _weekdayShort(AppLocalizations l10n, int day) => switch (day) {
   _ => '?',
 };
 
-String _fechaCorta(DateTime fecha) =>
-    '${fecha.day.toString().padLeft(2, '0')}/${fecha.month.toString().padLeft(2, '0')}/${fecha.year}';
+// S5-R4: short dates follow the active locale (en-US = M/D/Y, ja = Y/M/D).
+String _fechaCorta(AppLocalizations l10n, DateTime fecha) =>
+    fechaCortaLocalizada(l10n.localeName, fecha);

lib/pantallas/pantalla_buscar.dart

@@ -1,8 +1,8 @@
 import 'package:flutter/material.dart';
-import 'package:flutter_animate/flutter_animate.dart';
 import 'package:provider/provider.dart';
 
 import '../estado/estado_busqueda.dart';
+import '../tema/pluri_animate.dart';
 import '../l10n/gen/app_localizations.dart';
 import '../widgets/pluri_glass_surface.dart';
 import '../widgets/pluri_icon.dart';
@@ -260,9 +260,18 @@ class _PantallaBuscarState extends State<PantallaBuscar> {
   Widget _resultados(EstadoBusqueda estado, ThemeData theme) {
     final l10n = AppLocalizations.of(context);
     if (estado.cargando) {
-      return const SizedBox(
-        height: 220,
-        child: Center(child: CircularProgressIndicator()),
+      // S5-R6: shimmer placeholders instead of a bare spinner, consistent
+      // with the loading pattern used by the home grid.
+      return Padding(
+        padding: const EdgeInsets.all(PluriLayout.horizontal),
+        child: Column(
+          children: [
+            for (var i = 0; i < 4; i++) ...[
+              const TarjetaEmisoraShimmer(esCompacta: true),
+              if (i < 3) const SizedBox(height: 10),
+            ],
+          ],
+        ),
       );
     }
 
@@ -310,7 +319,11 @@ class _PantallaBuscarState extends State<PantallaBuscar> {
           emisora: resultados[i],
           esCompacta: true,
           onTap: () => reproducirMinimizado(context, resultados[i]),
-        ).animate().fadeIn(delay: (i.clamp(0, 12) * 20).ms).slideY(begin: 0.08);
+        ).pluriFadeSlideIn(
+          context,
+          delay: Duration(milliseconds: i.clamp(0, 12) * 20),
+          beginY: 0.08,
+        );
       },
     );
   }

lib/pantallas/pantalla_favoritos.dart

@@ -145,7 +145,8 @@ class _GrupoFavoritosPanel extends StatelessWidget {
                   ),
                 ),
               ),
-              Text('${emisoras.length}'),
+              // S5-R5: proper plural message, not a bare number.
+              Text(l10n.stationCount(emisoras.length)),
             ],
           ),
           const SizedBox(height: 8),

lib/pantallas/pantalla_inicio.dart

@@ -1,5 +1,4 @@
 import 'package:flutter/material.dart';
-import 'package:flutter_animate/flutter_animate.dart';
 import 'package:provider/provider.dart';
 import 'package:shimmer/shimmer.dart' as shimmer;
 
@@ -7,6 +6,7 @@ import '../estado/estado_busqueda.dart';
 import '../estado/estado_radio.dart';
 import '../l10n/gen/app_localizations.dart';
 import '../modelos/emisora.dart';
+import '../tema/pluri_animate.dart';
 import '../widgets/pluri_glass_surface.dart';
 import '../widgets/pluri_icon.dart';
 import '../widgets/pluri_layout.dart';
@@ -230,7 +230,10 @@ class _PantallaInicioState extends State<PantallaInicio> {
                             ),
                             label: Text(e.nombre, maxLines: 1),
                             onPressed: () => reproducirMinimizado(context, e),
-                          ).animate().fadeIn(delay: (i * 50).ms);
+                          ).pluriFadeIn(
+                            context,
+                            delay: Duration(milliseconds: i * 50),
+                          );
                         },
                       ),
             ),
@@ -354,7 +357,11 @@ class _PantallaInicioState extends State<PantallaInicio> {
         (context, i) => TarjetaEmisora(
           emisora: emisoras[i],
           onTap: () => reproducirMinimizado(context, emisoras[i]),
-        ).animate().fadeIn(delay: (i * 30).ms).slideY(begin: 0.1),
+        ).pluriFadeSlideIn(
+          context,
+          delay: Duration(milliseconds: i * 30),
+          beginY: 0.1,
+        ),
         childCount: emisoras.length,
       ),
       gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(

lib/pantallas/pantalla_reproductor.dart

@@ -1,6 +1,5 @@
 import 'package:cached_network_image/cached_network_image.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter_animate/flutter_animate.dart';
 import 'package:provider/provider.dart';
 import 'package:shimmer/shimmer.dart';
 
@@ -11,6 +10,7 @@ import '../l10n/gen/app_localizations.dart';
 import '../modelos/emisora.dart';
 import '../servicios/servicio_audio.dart';
 import '../servicios/servicio_timer.dart';
+import '../tema/pluri_animate.dart';
 import '../tema/pluriwave_theme.dart';
 import '../widgets/pluri_glass_surface.dart';
 import '../widgets/pluri_wave_scaffold.dart';
@@ -129,9 +129,10 @@ class _PantallaReproductorState extends State<PantallaReproductor>
               _WaveHero(
                 emisora: emisoraActiva,
                 estadoStream: estado.estadoStream,
-              ).animate().scale(
-                begin: const Offset(0.86, 0.86),
-                duration: 420.ms,
+              ).pluriScaleIn(
+                context,
+                begin: 0.86,
+                duration: const Duration(milliseconds: 420),
                 curve: Curves.easeOutBack,
               ),
               const SizedBox(height: 18),
@@ -143,19 +144,24 @@ class _PantallaReproductorState extends State<PantallaReproductor>
                 textAlign: TextAlign.center,
                 maxLines: 2,
                 overflow: TextOverflow.ellipsis,
-              ).animate().fadeIn(delay: 150.ms),
+              ).pluriFadeIn(context, delay: const Duration(milliseconds: 150)),
               const SizedBox(height: 10),
-              _InfoChips(
-                emisora: emisoraActiva,
-              ).animate().fadeIn(delay: 200.ms).slideY(begin: 0.2),
+              _InfoChips(emisora: emisoraActiva).pluriFadeSlideIn(
+                context,
+                delay: const Duration(milliseconds: 200),
+                beginY: 0.2,
+              ),
               const SizedBox(height: 6),
               if (emisoraActiva.codec != null || emisoraActiva.bitrate != null)
                 Text(
                   _codecInfo(context, emisoraActiva),
                   style: theme.textTheme.bodySmall?.copyWith(
-                    color: Colors.white.withValues(alpha: 0.72),
+                    color: theme.colorScheme.onSurface.withValues(alpha: 0.72),
                   ),
-                ).animate().fadeIn(delay: 250.ms),
+                ).pluriFadeIn(
+                  context,
+                  delay: const Duration(milliseconds: 250),
+                ),
               const SizedBox(height: 14),
               PluriGlassSurface(
                 borderRadius: BorderRadius.circular(tokens.radiusLg),
@@ -171,16 +177,25 @@ class _PantallaReproductorState extends State<PantallaReproductor>
                   color: tokens.warmCoral,
                   altura: 46,
                 ),
-              ).animate().fadeIn(delay: 280.ms),
+              ).pluriFadeIn(context, delay: const Duration(milliseconds: 280)),
               const Spacer(),
               _Controles(
                 estado: estado,
                 emisora: emisoraActiva,
-              ).animate().fadeIn(delay: 300.ms).slideY(begin: 0.3),
+              ).pluriFadeSlideIn(
+                context,
+                delay: const Duration(milliseconds: 300),
+                beginY: 0.3,
+              ),
               const SizedBox(height: 14),
-              const _GrabacionWidget().animate().fadeIn(delay: 360.ms),
+              const _GrabacionWidget().pluriFadeIn(
+                context,
+                delay: const Duration(milliseconds: 360),
+              ),
               const SizedBox(height: 14),
-              _TimerWidget(estado: estado).animate().fadeIn(delay: 400.ms),
+              _TimerWidget(
+                estado: estado,
+              ).pluriFadeIn(context, delay: const Duration(milliseconds: 400)),
               const SizedBox(height: 16),
             ],
           ),
@@ -247,9 +262,7 @@ class _WaveHero extends StatelessWidget {
                 height: size + 12,
                 decoration: BoxDecoration(
                   shape: BoxShape.circle,
-                  border: Border.all(
-                    color: Colors.white.withValues(alpha: 0.16),
-                  ),
+                  border: Border.all(color: t.glassBorder),
                 ),
               ),
               PluriGlassSurface(
@@ -275,9 +288,9 @@ class _WaveHero extends StatelessWidget {
                         if (cargando)
                           Container(
                             color: Colors.black45,
-                            child: const Center(
+                            child: Center(
                               child: CircularProgressIndicator(
-                                color: Colors.white,
+                                color: theme.colorScheme.onSurface,
                               ),
                             ),
                           ),
@@ -288,7 +301,9 @@ class _WaveHero extends StatelessWidget {
                               child: Icon(
                                 Icons.wifi_off_rounded,
                                 size: 56,
-                                color: Colors.white.withValues(alpha: 0.85),
+                                color: theme.colorScheme.onSurface.withValues(
+                                  alpha: 0.85,
+                                ),
                               ),
                             ),
                           ),
@@ -706,7 +721,7 @@ class _Controles extends StatelessWidget {
                     minWidth: 56,
                     minHeight: 56,
                   ),
-                  color: Colors.white.withValues(alpha: 0.78),
+                  color: theme.colorScheme.onSurface.withValues(alpha: 0.78),
                   tooltip: l10n.stopAction,
                   onPressed: cargando ? null : estado.detenerReproduccion,
                 ),
@@ -753,12 +768,12 @@ class _Controles extends StatelessWidget {
                       child: Center(
                         child:
                             cargando
-                                ? const SizedBox(
+                                ? SizedBox(
                                   width: 28,
                                   height: 28,
                                   child: CircularProgressIndicator(
                                     strokeWidth: 2.5,
-                                    color: Colors.white,
+                                    color: theme.colorScheme.onPrimary,
                                   ),
                                 )
                                 : Icon(

lib/tema/pluri_animate.dart

@@ -33,6 +33,20 @@ extension PluriAnimate on Widget {
         .scaleXY(begin: begin, end: 1, duration: duration, curve: curve);
   }
 
+  /// Fade + subtle vertical slide entry animation.
+  Widget pluriFadeSlideIn(
+    BuildContext context, {
+    Duration duration = const Duration(milliseconds: 350),
+    Duration delay = Duration.zero,
+    Curve curve = Curves.easeOutCubic,
+    double beginY = 0.1,
+  }) {
+    if (_animacionesDeshabilitadas(context)) return this;
+    return animate(delay: delay)
+        .fadeIn(duration: duration, curve: curve)
+        .slideY(begin: beginY, end: 0, duration: duration, curve: curve);
+  }
+
   bool _animacionesDeshabilitadas(BuildContext context) =>
       MediaQuery.maybeDisableAnimationsOf(context) ?? false;
 }

lib/tema/pluriwave_tokens.dart

@@ -36,9 +36,19 @@ class PluriWaveTokens extends ThemeExtension<PluriWaveTokens> {
   final double spacingMd;
   final double spacingLg;
 
+  /// Brand accent (S5-R8). Same hue as [electricMagenta]; exposed as a
+  /// static const so const contexts (e.g. AudioServiceConfig) can use it.
+  static const Color brand = Color(0xFF21D4D9);
+
+  /// Secondary palette used by gradients and decorative orbs (S5-R1).
+  /// These are token DEFINITIONS — the only place raw literals may live.
+  static const Color brightCyan = Color(0xFF20E6FF);
+  static const Color auroraTeal = Color(0xFF0E4A4F);
+  static const Color skyBlue = Color(0xFF60A5FA);
+
   static const dark = PluriWaveTokens(
     deepViolet: Color(0xFF07121A),
-    electricMagenta: Color(0xFF21D4D9),
+    electricMagenta: brand,
     warmCoral: Color(0xFFF4B860),
     glassSurface: Color(0x1FFFFFFF),
     glassBorder: Color(0x33FFFFFF),
@@ -86,13 +96,19 @@ class PluriWaveTokens extends ThemeExtension<PluriWaveTokens> {
   }
 
   @override
-  PluriWaveTokens lerp(covariant ThemeExtension<PluriWaveTokens>? other, double t) {
+  PluriWaveTokens lerp(
+    covariant ThemeExtension<PluriWaveTokens>? other,
+    double t,
+  ) {
     if (other is! PluriWaveTokens) return this;
     return PluriWaveTokens(
       deepViolet: Color.lerp(deepViolet, other.deepViolet, t) ?? deepViolet,
-      electricMagenta: Color.lerp(electricMagenta, other.electricMagenta, t) ?? electricMagenta,
+      electricMagenta:
+          Color.lerp(electricMagenta, other.electricMagenta, t) ??
+          electricMagenta,
       warmCoral: Color.lerp(warmCoral, other.warmCoral, t) ?? warmCoral,
-      glassSurface: Color.lerp(glassSurface, other.glassSurface, t) ?? glassSurface,
+      glassSurface:
+          Color.lerp(glassSurface, other.glassSurface, t) ?? glassSurface,
       glassBorder: Color.lerp(glassBorder, other.glassBorder, t) ?? glassBorder,
       glowColor: Color.lerp(glowColor, other.glowColor, t) ?? glowColor,
       radiusSm: lerpDouble(radiusSm, other.radiusSm, t) ?? radiusSm,

lib/widgets/pluri_premium_widgets.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 
 import '../tema/pluriwave_theme.dart';
+import '../tema/pluriwave_tokens.dart';
 import 'pluri_glass_surface.dart';
 import 'pluri_icon.dart';
 
@@ -38,12 +39,14 @@ class PluriScreenHeader extends StatelessWidget {
         shape: BoxShape.circle,
         gradient: LinearGradient(
           colors: [
-            const Color(0xFF20E6FF).withValues(alpha: 0.95),
+            PluriWaveTokens.brightCyan.withValues(alpha: 0.95),
             t.electricMagenta,
             t.warmCoral,
           ],
         ),
-        boxShadow: [BoxShadow(color: t.glowColor, blurRadius: 28, spreadRadius: 2)],
+        boxShadow: [
+          BoxShadow(color: t.glowColor, blurRadius: 28, spreadRadius: 2),
+        ],
       ),
       child: Center(
         child: PluriIcon(
@@ -117,14 +120,22 @@ class PluriScreenHeader extends StatelessWidget {
           Expanded(child: textBlock()),
           if (trailing != null) ...[
             const SizedBox(width: 12),
-            ConstrainedBox(constraints: const BoxConstraints(maxWidth: 220), child: trailing!),
+            ConstrainedBox(
+              constraints: const BoxConstraints(maxWidth: 220),
+              child: trailing!,
+            ),
           ],
         ],
       );
     }
 
     return Padding(
-      padding: EdgeInsets.fromLTRB(t.spacingMd, t.spacingSm, t.spacingMd, t.spacingSm),
+      padding: EdgeInsets.fromLTRB(
+        t.spacingMd,
+        t.spacingSm,
+        t.spacingMd,
+        t.spacingSm,
+      ),
       child: PluriGlassSurface(
         borderRadius: BorderRadius.circular(t.radiusLg + 8),
         padding: EdgeInsets.symmetric(
@@ -164,7 +175,10 @@ class PluriScreenHeader extends StatelessWidget {
             Positioned(
               right: -36,
               top: -42,
-              child: _Orb(color: t.electricMagenta.withValues(alpha: 0.38), size: 128),
+              child: _Orb(
+                color: t.electricMagenta.withValues(alpha: 0.38),
+                size: 128,
+              ),
             ),
             Positioned(
               right: 10,
@@ -182,7 +196,10 @@ class PluriScreenHeader extends StatelessWidget {
             Positioned(
               right: 44,
               bottom: -54,
-              child: _Orb(color: const Color(0xFF20E6FF).withValues(alpha: 0.22), size: 116),
+              child: _Orb(
+                color: PluriWaveTokens.brightCyan.withValues(alpha: 0.22),
+                size: 116,
+              ),
             ),
             Padding(
               padding: EdgeInsets.all(compact ? 2 : 4),
@@ -195,7 +212,6 @@ class PluriScreenHeader extends StatelessWidget {
   }
 }
 
-
 class PluriStatusPill extends StatelessWidget {
   const PluriStatusPill({
     super.key,
@@ -232,7 +248,9 @@ class PluriStatusPill extends StatelessWidget {
                 label,
                 maxLines: 1,
                 overflow: TextOverflow.ellipsis,
-                style: Theme.of(context).textTheme.labelMedium?.copyWith(fontWeight: FontWeight.w800),
+                style: Theme.of(
+                  context,
+                ).textTheme.labelMedium?.copyWith(fontWeight: FontWeight.w800),
               ),
             ),
           ],
@@ -267,14 +285,26 @@ class PluriEmptyState extends StatelessWidget {
           child: Column(
             mainAxisSize: MainAxisSize.min,
             children: [
-              PluriIcon(glyph: glyph, variant: PluriIconVariant.activeGlow, size: 58),
+              PluriIcon(
+                glyph: glyph,
+                variant: PluriIconVariant.activeGlow,
+                size: 58,
+              ),
               const SizedBox(height: 18),
-              Text(title, textAlign: TextAlign.center, style: theme.textTheme.titleLarge?.copyWith(fontWeight: FontWeight.w900)),
+              Text(
+                title,
+                textAlign: TextAlign.center,
+                style: theme.textTheme.titleLarge?.copyWith(
+                  fontWeight: FontWeight.w900,
+                ),
+              ),
               const SizedBox(height: 8),
               Text(
                 subtitle,
                 textAlign: TextAlign.center,
-                style: theme.textTheme.bodyMedium?.copyWith(color: theme.colorScheme.onSurface.withValues(alpha: 0.72)),
+                style: theme.textTheme.bodyMedium?.copyWith(
+                  color: theme.colorScheme.onSurface.withValues(alpha: 0.72),
+                ),
               ),
             ],
           ),

lib/widgets/pluri_wave_scaffold.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 
 import '../tema/pluriwave_theme.dart';
+import '../tema/pluriwave_tokens.dart';
 
 class PluriWaveScaffold extends StatelessWidget {
   const PluriWaveScaffold({
@@ -31,10 +32,10 @@ class PluriWaveScaffold extends StatelessWidget {
             begin: Alignment.topLeft,
             end: Alignment.bottomRight,
             colors: [
-              const Color(0xFF07121A),
-              const Color(0xFF0D1B24),
-              const Color(0xFF0E4A4F),
-              const Color(0xFF07121A),
+              t.deepViolet,
+              Theme.of(context).colorScheme.surface,
+              PluriWaveTokens.auroraTeal,
+              t.deepViolet,
             ],
             stops: const [0, 0.34, 0.68, 1],
           ),
@@ -45,17 +46,28 @@ class PluriWaveScaffold extends StatelessWidget {
             Positioned(
               left: -120,
               top: -120,
-              child: _AuroraOrb(size: 300, color: const Color(0xFF21D4D9).withValues(alpha: 0.18)),
+              child: _AuroraOrb(
+                size: 300,
+                color: t.electricMagenta.withValues(alpha: 0.18),
+              ),
             ),
             Positioned(
               right: -150,
               top: 160,
-              child: _AuroraOrb(size: 340, color: const Color(0xFF7EE4C2).withValues(alpha: 0.12)),
+              child: _AuroraOrb(
+                size: 340,
+                color: Theme.of(
+                  context,
+                ).colorScheme.secondary.withValues(alpha: 0.12),
+              ),
             ),
             Positioned(
               left: -90,
               bottom: 80,
-              child: _AuroraOrb(size: 260, color: t.warmCoral.withValues(alpha: 0.10)),
+              child: _AuroraOrb(
+                size: 260,
+                color: t.warmCoral.withValues(alpha: 0.10),
+              ),
             ),
             Positioned.fill(
               child: IgnorePointer(

lib/widgets/tarjeta_emisora.dart

@@ -8,6 +8,7 @@ import '../l10n/display_names.dart';
 import '../l10n/gen/app_localizations.dart';
 import '../modelos/emisora.dart';
 import '../tema/pluriwave_theme.dart';
+import '../tema/pluriwave_tokens.dart';
 import 'pluri_glass_surface.dart';
 import 'pluri_icon.dart';
 
@@ -188,9 +189,19 @@ class _TarjetaEmisoraState extends State<TarjetaEmisora> {
                 decoration: BoxDecoration(
                   shape: BoxShape.circle,
                   gradient: SweepGradient(
-                    colors: [t.electricMagenta, const Color(0xFF20E6FF), t.warmCoral, t.electricMagenta],
+                    colors: [
+                      t.electricMagenta,
+                      PluriWaveTokens.brightCyan,
+                      t.warmCoral,
+                      t.electricMagenta,
+                    ],
                   ),
-                  boxShadow: [BoxShadow(color: t.glowColor.withValues(alpha: 0.24), blurRadius: 22)],
+                  boxShadow: [
+                    BoxShadow(
+                      color: t.glowColor.withValues(alpha: 0.24),
+                      blurRadius: 22,
+                    ),
+                  ],
                 ),
               ),
               ClipRRect(
@@ -268,7 +279,11 @@ class _TarjetaEmisoraState extends State<TarjetaEmisora> {
                       : l10n.favoritesAddTooltip,
             );
 
+    // S5-R2: container forces an OWN semantics node — without it the card's
+    // InkWell absorbs the favorite into one merged node and screen readers
+    // cannot reach the action independently.
     return Semantics(
+      container: true,
       button: true,
       toggled: esFavorito,
       label:
@@ -279,11 +294,8 @@ class _TarjetaEmisoraState extends State<TarjetaEmisora> {
         child: InkWell(
           customBorder: const CircleBorder(),
           onTap: _toggling ? null : _toggle,
-          child: SizedBox(
-            width: mini ? 36 : 44,
-            height: mini ? 36 : 44,
-            child: Center(child: icono),
-          ),
+          // S5-R2: 48dp minimum touch target in both variants.
+          child: SizedBox(width: 48, height: 48, child: Center(child: icono)),
         ),
       ),
     );
@@ -318,18 +330,21 @@ class _TarjetaEmisoraState extends State<TarjetaEmisora> {
         Image.asset(
           art,
           fit: BoxFit.cover,
-          errorBuilder: (_, __, ___) => DecoratedBox(
-            decoration: BoxDecoration(
-              gradient: LinearGradient(
-                begin: Alignment.topLeft,
-                end: Alignment.bottomRight,
-                colors: [
-                  context.pluriTokens.deepViolet,
-                  context.pluriTokens.electricMagenta.withValues(alpha: 0.8),
-                ],
+          errorBuilder:
+              (_, __, ___) => DecoratedBox(
+                decoration: BoxDecoration(
+                  gradient: LinearGradient(
+                    begin: Alignment.topLeft,
+                    end: Alignment.bottomRight,
+                    colors: [
+                      context.pluriTokens.deepViolet,
+                      context.pluriTokens.electricMagenta.withValues(
+                        alpha: 0.8,
+                      ),
+                    ],
+                  ),
+                ),
               ),
-            ),
-          ),
         ),
         Center(
           child: PluriIcon(
@@ -365,7 +380,10 @@ class _LiveBadge extends StatelessWidget {
     final color = Theme.of(context).colorScheme.secondary;
     final l10n = AppLocalizations.of(context);
     return Container(
-      padding: EdgeInsets.symmetric(horizontal: mini ? 8 : 6, vertical: mini ? 5 : 4),
+      padding: EdgeInsets.symmetric(
+        horizontal: mini ? 8 : 6,
+        vertical: mini ? 5 : 4,
+      ),
       decoration: BoxDecoration(
         borderRadius: BorderRadius.circular(999),
         color: Colors.black.withValues(alpha: 0.35),
@@ -374,10 +392,19 @@ class _LiveBadge extends StatelessWidget {
       child: Row(
         mainAxisSize: MainAxisSize.min,
         children: [
-          Icon(Icons.fiber_manual_record_rounded, size: mini ? 10 : 8, color: color),
+          Icon(
+            Icons.fiber_manual_record_rounded,
+            size: mini ? 10 : 8,
+            color: color,
+          ),
           if (mini) ...[
             const SizedBox(width: 5),
-            Text(l10n.liveNow, style: Theme.of(context).textTheme.labelSmall?.copyWith(fontWeight: FontWeight.w900)),
+            Text(
+              l10n.liveNow,
+              style: Theme.of(
+                context,
+              ).textTheme.labelSmall?.copyWith(fontWeight: FontWeight.w900),
+            ),
           ],
         ],
       ),
@@ -386,35 +413,74 @@ class _LiveBadge extends StatelessWidget {
 }
 
 /// Placeholder shimmer para listas en carga.
+///
+/// S5-R6: corners match the real card radii; [esCompacta] mirrors the
+/// compact row layout used in search results.
 class TarjetaEmisoraShimmer extends StatelessWidget {
-  const TarjetaEmisoraShimmer({super.key});
+  const TarjetaEmisoraShimmer({super.key, this.esCompacta = false});
+
+  final bool esCompacta;
 
   @override
   Widget build(BuildContext context) {
     final theme = Theme.of(context);
+    final t = context.pluriTokens;
+    final color = theme.colorScheme.surfaceContainerHighest;
+
+    Widget bloque({
+      double? width,
+      double? height,
+      double? radius,
+      BoxShape shape = BoxShape.rectangle,
+    }) {
+      return Container(
+        width: width,
+        height: height,
+        decoration: BoxDecoration(
+          color: color,
+          shape: shape,
+          borderRadius:
+              shape == BoxShape.circle || radius == null
+                  ? null
+                  : BorderRadius.circular(radius),
+        ),
+      );
+    }
+
+    final contenido =
+        esCompacta
+            ? Row(
+              children: [
+                bloque(width: 58, height: 58, shape: BoxShape.circle),
+                const SizedBox(width: 10),
+                Expanded(
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    mainAxisSize: MainAxisSize.min,
+                    children: [
+                      bloque(height: 14, radius: 6),
+                      const SizedBox(height: 6),
+                      bloque(height: 12, width: 90, radius: 6),
+                    ],
+                  ),
+                ),
+              ],
+            )
+            : Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                AspectRatio(aspectRatio: 1, child: bloque(radius: t.radiusLg)),
+                const SizedBox(height: 8),
+                bloque(height: 14, radius: 6),
+                const SizedBox(height: 4),
+                bloque(height: 12, width: 60, radius: 6),
+              ],
+            );
+
     return Shimmer.fromColors(
-      baseColor: theme.colorScheme.surfaceContainerHighest,
+      baseColor: color,
       highlightColor: theme.colorScheme.surface,
-      child: Column(
-        crossAxisAlignment: CrossAxisAlignment.start,
-        children: [
-          AspectRatio(
-            aspectRatio: 1,
-            child: Container(color: theme.colorScheme.surfaceContainerHighest),
-          ),
-          const SizedBox(height: 8),
-          Container(
-            height: 14,
-            color: theme.colorScheme.surfaceContainerHighest,
-          ),
-          const SizedBox(height: 4),
-          Container(
-            height: 12,
-            width: 60,
-            color: theme.colorScheme.surfaceContainerHighest,
-          ),
-        ],
-      ),
+      child: contenido,
     );
   }
 }

lib/widgets/visualizador_audio.dart

@@ -5,6 +5,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 
 import '../servicios/servicio_audio.dart';
+import '../tema/pluriwave_tokens.dart';
 
 /// Visualizador de audio para el reproductor.
 ///
@@ -234,7 +235,9 @@ class _WaveFlowPainter extends CustomPainter {
             colors: [
               color.withValues(alpha: 0.08),
               color.withValues(alpha: active ? 0.95 : 0.35),
-              const Color(0xFFF4B860).withValues(alpha: active ? 0.75 : 0.20),
+              PluriWaveTokens.dark.warmCoral.withValues(
+                alpha: active ? 0.75 : 0.20,
+              ),
               color.withValues(alpha: 0.08),
             ],
           ).createShader(Offset.zero & size);

openspec/changes/app-quality-and-native-alarms/apply-progress.md

@@ -3,7 +3,7 @@
 **Mode**: Strict TDD (test runner: `flutter test`)
 **Artifact store**: openspec (Engram unavailable this session)
 **Delivery**: auto-chain, local apply — no commits, no PRs (user commits at own cadence)
-**Last updated**: 2026-06-11 (Batch 6)
+**Last updated**: 2026-06-11 (Batch 7)
 
 ## Batch log
 
@@ -15,6 +15,7 @@
 | 4 | S7 — Streaming resilience (buffer config, reconnect state machine, UI wiring) | COMPLETE (Dart-only batch; stream-drop on-device verification deferred to user) | 2026-06-11 |
 | 5 | S4a — ServicioExportImport + EstadoEcualizador extraction + compat getters | COMPLETE (Dart-only batch) | 2026-06-11 |
 | 6 | S4b — EstadoGrabacion + EstadoBusqueda + scoped rebuilds + compat-getter removal | COMPLETE (Dart-only batch) | 2026-06-11 |
+| 7 | S5 — Design system, a11y, i18n, polish | COMPLETE (Dart-only batch) | 2026-06-11 |
 
 ## Task status (cumulative)
 
@@ -165,9 +166,32 @@
 | T-S4b-12 | [x] | `flutter analyze` — No issues found |
 | T-S4b-13 | [x] | `dart format` on 15 touched files (10 reflowed); analyze + suite re-run after |
 
+### Slice S5 — Design system, a11y, i18n — 18/18 complete
+
+| Task | Status | Notes |
+|------|--------|-------|
+| T-S5-01 | [x] | RED: `tarjeta_emisora_a11y_test.dart` — semantics label/button/toggled + ≥48dp. RED exposed a REAL bug: the card InkWell merged the favorite into ONE semantics node (screen readers could not reach the action independently) |
+| T-S5-02 | [x] | RED: `pluri_animate_test.dart` — fadeIn/scaleIn lock-in + NEW `pluriFadeSlideIn` (honest RED: method missing) |
+| T-S5-03 | [x] | RED: `pantalla_alarmas_fecha_test.dart` — en-US `6/11/2026`, NOT `11/06/2026`; es day/month |
+| T-S5-04 | [x] | RED: `pantalla_favoritos_plural_test.dart` — `stationCount` singular ≠ plural (en, es) |
+| T-S5-05 | [x] | RED: `pantalla_buscar_shimmer_test.dart` — shimmer during loading, NO spinner (cargando-true EstadoBusqueda subclass seam) |
+| T-S5-06 | [x] | RED: `notification_color_test.dart` — `configuracionAudioService.notificationColor == PluriWaveTokens.brand` |
+| T-S5-07 | [x] | GREEN: zero `Color(0x...)` outside lib/tema (rg audit). New static tokens `brand`/`brightCyan`/`auroraTeal`/`skyBlue`; scaffold gradient/orbs, alarmas glows, visualizer stop, premium orbs, tarjeta sweep mapped; Colors.grey/green/white semantic uses → colorScheme/tokens |
+| T-S5-08 | [x] | GREEN: favorite `Semantics(container: true, ...)` + 48×48 in both variants; `_AssetIcon.semanticLabel` (+`excludeFromSemantics` when decorative); alarm/vacation/ringing images labelled via NEW `alarmIconLabel`/`vacationIconLabel` |
+| T-S5-09 | [x] | GREEN: `pluriFadeSlideIn` added; ALL `flutter_animate` call sites routed through PluriAnimate (inicio chips/grid, buscar results, reproductor ×8); zero direct `.animate()` in lib/ |
+| T-S5-10 | [x] | GREEN: NEW `lib/l10n/formato_fechas.dart` (`fechaCortaLocalizada`); `_fechaCorta(l10n, fecha)` delegates via `l10n.localeName` (6 call sites) |
+| T-S5-11 | [x] | GREEN: `stationCount` ICU plural in ALL 13 locales (ru/ar full category sets); NEW `streamUrlHint` replaces hardcoded `stream.ejemplo.com`; gen-l10n run |
+| T-S5-12 | [x] | GREEN: shimmer rounded (radiusLg/6) + NEW `esCompacta` row variant; PantallaBuscar loading → 4 compact shimmer rows |
+| T-S5-13 | [x] | GREEN: 9 ajustes icons → `_rounded`; `*_outlined` family left (no rounded-outline variant exists); `_FormularioEmisora` sheet → `useSafeArea` + `showDragHandle` |
+| T-S5-14 | [x] | GREEN: `configuracionAudioService` top-level const; `notificationColor: PluriWaveTokens.brand` |
+| T-S5-15 | [x] | Targeted run 11/11 green (RED first: `+0 -6`) |
+| T-S5-16 | [x] | Full suite 121/121 (110 baseline + 11 new) |
+| T-S5-17 | [x] | `flutter analyze` — No issues found; color-literal audit ZERO |
+| T-S5-18 | [x] | `dart format` on 20 touched Dart files (7 reflowed); analyze + suite re-run after |
+
 ### Remaining slices (not started)
 
-S5, S6, cross-cutting (T-CC-01, T-CC-02) — all pending.
+S6, cross-cutting (T-CC-01, T-CC-02) — pending. S6 is now UNBLOCKED (depends on S4b + S5, both complete).
 
 ## Snooze defect fixes (design audit D1–D5 / S1–S5)
 
@@ -236,6 +260,61 @@ RED run evidence (Batch 5): `00:00 +0 -2` (both files fail to load — captured
 
 RED run evidence (Batch 6): `00:00 +0 -3` (all three files fail to load — captured before any lib code). GREEN: targeted 8/8; full suite `00:11 +110: All tests passed!` (103 baseline − 1 moved + 8 new); analyze + suite re-run after format.
 
+### Batch 7 TDD Cycle Evidence (S5)
+
+| Task | RED (test written first, failing) | GREEN (implementation passes) | REFACTOR |
+|------|-----------------------------------|-------------------------------|----------|
+| T-S5-01/T-S5-08 | `find.bySemanticsLabel` found 0 nodes — the card InkWell MERGED the favorite into one node (real a11y defect, probed with a semantics dump) | `Semantics(container: true)` + 48dp target; node found, button/toggled flags pass | `hasFlag` (deprecated) → `flagsCollection` + `Tristate`; explicit `semantics.dispose()` (addTearDown fires too late for the handle check) |
+| T-S5-02/T-S5-09 | Compile failure: `pluriFadeSlideIn` undefined | Helper added; 4/4 animate tests green | — |
+| T-S5-03/T-S5-10 | Load failure: `formato_fechas.dart` missing | `fechaCortaLocalizada` + delegation; en-US/es tests pass | — |
+| T-S5-04/T-S5-11 | Compile failure: `stationCount` missing from AppLocalizations | ARB plural ×13 + gen-l10n; both locale tests pass | — |
+| T-S5-05/T-S5-12 | `TarjetaEmisoraShimmer` found 0, spinner found 1 | Compact shimmer variant + buscar loading swap | Shimmer block builder extracted (`bloque`) shared by both variants |
+| T-S5-06/T-S5-14 | Compile failure: `configuracionAudioService`/`PluriWaveTokens.brand` undefined | Const extraction + brand token; test passes | `electricMagenta` re-pointed at `brand` (no duplicate literal) |
+
+RED run evidence (Batch 7): `00:02 +0 -6` (4 compile/load failures + 2 honest assertion failures) captured before any lib code. GREEN: targeted 11/11; full suite `00:14 +121: All tests passed!`; analyze + suite re-run after `dart format`.
+
+## Files changed (Batch 7)
+
+| File | Action | ~Lines |
+|------|--------|--------|
+| `lib/tema/pluriwave_tokens.dart` | Modified | +12 (static `brand`/`brightCyan`/`auroraTeal`/`skyBlue` token definitions; format reflow) |
+| `lib/tema/pluri_animate.dart` | Modified | +14 (`pluriFadeSlideIn`) |
+| `lib/l10n/formato_fechas.dart` | Created | +14 (locale-aware short date) |
+| `lib/main.dart` | Modified | +13/-8 (`configuracionAudioService` const, brand notification color) |
+| `lib/widgets/pluri_wave_scaffold.dart` | Modified | +8/-8 (gradient + orbs → tokens/colorScheme) |
+| `lib/widgets/tarjeta_emisora.dart` | Modified | +60/-30 (brightCyan, favorite container semantics + 48dp, rounded shimmer + compact variant) |
+| `lib/widgets/visualizador_audio.dart` | Modified | +2/-1 (warmCoral token) |
+| `lib/widgets/pluri_premium_widgets.dart` | Modified | +3/-2 (brightCyan) |
+| `lib/pantallas/pantalla_alarmas.dart` | Modified | +55/-30 (glow tokens, `_AssetIcon` semanticLabel, locale-aware `_fechaCorta`, vacaciones initState l10n fix) |
+| `lib/pantallas/pantalla_favoritos.dart` | Modified | +2/-1 (plural counter) |
+| `lib/pantallas/pantalla_buscar.dart` | Modified | +18/-7 (shimmer loading, pluriFadeSlideIn) |
+| `lib/pantallas/pantalla_ajustes.dart` | Modified | +20/-12 (rounded icons, semantic colors, l10n hint, sheet conventions) |
+| `lib/pantallas/pantalla_reproductor.dart` | Modified | +25/-20 (PluriAnimate routing ×8, white overlays → colorScheme/tokens) |
+| `lib/pantallas/pantalla_inicio.dart` | Modified | +6/-3 (PluriAnimate routing) |
+| `lib/l10n/app_*.arb` (13 files) | Modified | +4-5 each (`stationCount` plural, `alarmIconLabel`, `vacationIconLabel`, `streamUrlHint`) |
+| `lib/l10n/gen/*` (14 files) | Regenerated | by `flutter gen-l10n` |
+| `test/widgets/tarjeta_emisora_a11y_test.dart` | Created | +72 (1 test) |
+| `test/tema/pluri_animate_test.dart` | Created | +80 (4 tests) |
+| `test/tema/notification_color_test.dart` | Created | +17 (1 test) |
+| `test/pantallas/pantalla_alarmas_fecha_test.dart` | Created | +29 (2 tests) |
+| `test/pantallas/pantalla_favoritos_plural_test.dart` | Created | +21 (2 tests) |
+| `test/pantallas/pantalla_buscar_shimmer_test.dart` | Created | +42 (1 test) |
+
+Total Batch 7 lib diff: ~240 insertions / ~120 deletions (incl. ARB, excl. gen/), plus ~260 lines of new tests. Within the ~210-line slice estimate for hand-written lib changes. No Kotlin/native files touched.
+
+## Deviations from design (Batch 7)
+
+1. **`Semantics(container: true)` on the favorite button (not in task text).** The task only asked for `Semantics(button, label)` — which ALREADY existed. The RED test proved the real defect: the card-level InkWell merged the favorite into a single semantics node, so screen readers could not reach the action. `container: true` forces an own node; this is the actual S5-R2 fix.
+2. **`fechaCortaLocalizada` lives in NEW `lib/l10n/formato_fechas.dart`** (task said edit `_fechaCorta` in place). The private top-level function is untestable from `flutter test`; the public helper takes a locale tag (testable without widgets) and `_fechaCorta(l10n, fecha)` delegates via `l10n.localeName`. Spec scenario S5-R4-A is met verbatim.
+3. **Brand token is `PluriWaveTokens.brand`, not `brandColor`** (task text guessed the name). Defined as a `static const` so it works in the `const AudioServiceConfig` context; `electricMagenta` now references it (single source for 0xFF21D4D9). `brightCyan`/`auroraTeal`/`skyBlue` added the same way for palette colors that had no token.
+4. **`Colors.white` overlays mapped to `colorScheme.onSurface`/`onPrimary` and `tokens.glassBorder`** — the scheme's `onSurface` is 0xFFF2F7FA (near-white), so visuals are intentionally near-identical while becoming theme-driven.
+5. **`pluriScaleIn` on the hero adds a fade** the old bare `.scale()` did not have (the shared helper pairs fade+scale). Visually negligible at 420 ms; keeping one canonical scale-entry beats a third helper.
+6. **Icon variants: only base-name icons got `_rounded`** (9 sites). The `*_outlined` Material family (folder_outlined, backup_outlined, upload/download_outlined, verified_outlined, music_note_outlined) has NO rounded-outline variant; switching them to filled `_rounded` would change their visual weight, so they stay outlined.
+7. **`streamUrlHint` added as an l10n key** (the prompt's "handled per design"): the hardcoded hint leaked a Spanish-looking host (`stream.ejemplo.com`) into all 13 locales; the key ships the same neutral `stream.example.com` URL everywhere but is now localizable.
+8. **`_EditorVacacionesSheet` initState l10n crash fixed** (flagged in Batch 2 as a latent debug-mode crash, explicitly brought into this batch's scope): controller now created lazily in `didChangeDependencies`, mirroring the alarm-editor fix.
+9. **Pagination spinner in PantallaBuscar kept** — S5-R6 covers the initial loading state (explore C11, lines 241-245); the small inline load-more spinner is a different affordance and was left untouched.
+10. **`flagsCollection`/`Tristate` instead of `SemanticsFlag.hasFlag`** in the a11y test — `hasFlag` is deprecated in the current SDK and `flutter analyze` flags it; also `tester.ensureSemantics()` must be disposed in the test body (an `addTearDown` runs after the framework's handle-leak check).
+
 ## Files changed (Batch 2)
 
 | File | Action | ~Lines |
@@ -495,9 +574,28 @@ From tasks.md Section 11 — S1 items still pending from Batch 1, plus new S2 it
 4. **Scoped rebuilds (S4-R5):** while audio plays/buffers, home/favorites/settings should feel identical (no visual change expected — the win is fewer rebuilds); list reordering in Ajustes still re-sorts home, search results and favorites.
 5. **Stop recording on pause/stop/station switch:** unchanged orchestration in EstadoRadio — verify recording stops when playback pauses/stops or station changes.
 
+## Verification summary (Batch 7)
+
+- `flutter test`: 121/121 passing (110 baseline + 11 new across 6 files); re-run after `dart format`
+- `flutter analyze`: No issues found (identical to baseline); re-run after format
+- `dart format`: applied to all 20 touched Dart files (7 reflowed); gen/ untouched by hand
+- `flutter gen-l10n`: run once after the 13 .arb edits
+- Color-literal audit: `rg 'Color(0x' lib` excluding `lib/tema/` and `lib/l10n/gen/` → **0 matches** (was 14)
+- `rg '.animate()' lib` → 0 direct flutter_animate call sites (all via PluriAnimate)
+- `flutter build`: NOT run (forbidden)
+- No Kotlin/native files touched in this batch
+
+### Manual verification items added by Batch 7 (user)
+
+1. **Visual parity sweep (S5-R1):** home/buscar/favoritos/ajustes/alarmas/reproductor look unchanged — token mapping was value-preserving (onSurface ≈ white; electricMagenta = brand). The settings "check" icons are now mint (`colorScheme.secondary`) instead of Material green — intentional.
+2. **TalkBack (S5-R2):** on a station card, the favorite toggle is now reachable as its OWN button ("Añadir a favoritos / Quitar de favoritos") separate from the card; alarm/vacation images announce their labels.
+3. **Reduced motion (S5-R3):** with "remove animations" enabled, home grid/search results/player screens render instantly with no entry animations.
+4. **Locale dates (S5-R4):** switch app language to English → alarm editor and vacation ranges show M/D/Y order; Japanese shows Y/M/D.
+5. **Media notification (S5-R8):** the playback notification accent is teal (brand), not purple, on devices that honor `notificationColor`.
+
 ## Workload / boundary
 
 - Mode: auto-chain local slices (no PRs)
-- Current work units: S1, S2a, S2b, S3a, S3b, S7, S4a (committed, latest 0416b30), S4b (complete, in working tree)
-- Boundary (Batch 6): starts from the clean post-0416b30 tree; ends with S4b fully checked off, suite green (110/110). Rollback = revert the 9 modified lib/test files + delete the 6 new files (Dart-only; no native edits).
-- Next batch: S5 (design system / a11y / i18n — unblocked since S2b) then S6 (quality gates — now unblocked: depends on S4b + S5).
+- Current work units: S1, S2a, S2b, S3a, S3b, S7, S4a, S4b (committed, latest 52855e7), S5 (complete, in working tree)
+- Boundary (Batch 7): starts from the clean post-52855e7 tree; ends with S5 fully checked off, suite green (121/121). Rollback = revert the 27 modified lib files (incl. 13 ARB + gen/) + delete the 7 new files (Dart-only; no native edits).
+- Next batch: S6 (quality gates — lint hardening + remaining top-5 tests) then cross-cutting T-CC-01/T-CC-02. S6 is the LAST slice.

openspec/changes/app-quality-and-native-alarms/tasks.md

@@ -363,30 +363,30 @@ Chain strategy: N/A (local apply)
 
 ### S5 pre-work: write failing tests
 
-- [ ] **T-S5-01** [RED] Create `test/widgets/tarjeta_emisora_a11y_test.dart`: favorite `InkWell` has semantic label + `button:true`; size ≥ 48×48 dp (S5-R2-A). **~20 lines.**
-- [ ] **T-S5-02** [RED] Add test in `test/tema/pluri_animate_test.dart`: `pluriFadeIn` returns unanimated child when `disableAnimations=true` (S5-R3-A). **~15 lines.**
-- [ ] **T-S5-03** [RED] Create `test/pantallas/pantalla_alarmas_fecha_test.dart`: `_fechaCorta` with locale `en-US` returns `DateFormat.yMd('en-US')` result, NOT `11/06/2026` (S5-R4-A). **~15 lines.**
-- [ ] **T-S5-04** [RED] Add test `test/pantallas/pantalla_favoritos_plural_test.dart`: plural form changes between 1 and 5 station count strings (S5-R5). **~10 lines.**
-- [ ] **T-S5-05** [RED] Add widget test: shimmer present during loading state in `PantallaBuscar` (S5-R6). **~10 lines.**
-- [ ] **T-S5-06** [RED] Add unit test: `AudioServiceConfig.notificationColor` equals brand color token (S5-R8). **~10 lines.**
+- [x] **T-S5-01** [RED] Create `test/widgets/tarjeta_emisora_a11y_test.dart`: favorite `InkWell` has semantic label + `button:true`; size ≥ 48×48 dp (S5-R2-A). **DONE — RED exposed a REAL merge bug: the card InkWell absorbed the favorite into one semantics node; fixed with `Semantics(container: true)`. Toggled state asserted via `flagsCollection` (Tristate API; `hasFlag` is deprecated).**
+- [x] **T-S5-02** [RED] `test/tema/pluri_animate_test.dart`: `pluriFadeIn`/`pluriScaleIn` lock-in (already implemented in S2b) + NEW `pluriFadeSlideIn` (honest RED: method missing). 4 tests. **DONE.**
+- [x] **T-S5-03** [RED] `test/pantallas/pantalla_alarmas_fecha_test.dart`: en-US returns `6/11/2026` (NOT `11/06/2026`) + es day/month order. Tests the NEW public helper `fechaCortaLocalizada` (private `_fechaCorta` is untestable; see deviation). **DONE.**
+- [x] **T-S5-04** [RED] `test/pantallas/pantalla_favoritos_plural_test.dart`: `stationCount(1)` differs from `stationCount(5)` in en and es. **DONE.**
+- [x] **T-S5-05** [RED] `test/pantallas/pantalla_buscar_shimmer_test.dart`: loading shows `TarjetaEmisoraShimmer`, NO `CircularProgressIndicator` (cargando-true EstadoBusqueda subclass seam). **DONE.**
+- [x] **T-S5-06** [RED] `test/tema/notification_color_test.dart`: `configuracionAudioService.notificationColor == PluriWaveTokens.brand` (config extracted to a testable top-level const). **DONE.**
 
 ### S5 implementation
 
-- [ ] **T-S5-07** [GREEN] Edit all 14+ remaining `Color(0x...)` literal sites identified in explore C3 (files: `lib/pantallas/`, `lib/widgets/`, excluding `pantalla_alarma_sonando.dart` done in S2b): replace with `PluriWaveTokens` or `Theme.of(context).colorScheme` references. **Reqs:** S5-R1. **~30 lines across files.**
-- [ ] **T-S5-08** [GREEN] Edit `lib/widgets/tarjeta_emisora.dart` (lines 238-289): wrap mini favorite `InkWell` in `Semantics(button: true, label: l10n.toggleFavorite)`; set `constraints: BoxConstraints(minWidth: 48, minHeight: 48)`. Add `semanticLabel` to `_AssetIcon`/alarm PNG. **Reqs:** S5-R2. **~15 lines.**
-- [ ] **T-S5-09** [GREEN] `lib/tema/pluri_animate.dart` already created in S2b (T-S2b-04). Verify tests pass (no new code needed here unless edge case found).
-- [ ] **T-S5-10** [GREEN] Edit `lib/pantallas/pantalla_alarmas.dart` `_fechaCorta` (line 1114): replace hardcoded format string with `intl.DateFormat.yMd(Localizations.localeOf(context).toLanguageTag()).format(date)`. **Reqs:** S5-R4. **~5 lines.**
-- [ ] **T-S5-11** [GREEN] Edit `lib/pantallas/pantalla_favoritos.dart` (line 138): replace bare counter string with ARB plural form using `AppLocalizations` `stationCount(n)` plural message. Add the ARB plural entry to `lib/l10n/*.arb` files for all supported locales. **Reqs:** S5-R5. **~20 lines (Dart) + ARB entries.**
-- [ ] **T-S5-12** [GREEN] Edit `lib/widgets/tarjeta_emisora.dart` shimmer placeholders (lines 389-420): apply `BorderRadius` matching card corners. Edit `lib/pantallas/pantalla_buscar.dart` (lines 241-245): replace spinner with shimmer during loading state. **Reqs:** S5-R6. **~20 lines.**
-- [ ] **T-S5-13** [GREEN] Edit `lib/pantallas/pantalla_ajustes.dart` icon sites (lines 985, 1028, 1031): replace non-`_rounded` icon variants with their `_rounded` equivalents. **Reqs:** S5-R7. **~5 lines.**
-- [ ] **T-S5-14** [GREEN] Edit `lib/main.dart` (line 23) `AudioServiceConfig`: set `notificationColor` to `PluriWaveTokens.brandColor` (or equivalent token). **Reqs:** S5-R8. **~3 lines.**
+- [x] **T-S5-07** [GREEN] ALL `Color(0x...)` literals outside `lib/tema/` removed (rg audit = 0 matches). New token DEFINITIONS in `PluriWaveTokens`: static `brand` (0xFF21D4D9, now referenced by `electricMagenta`), `brightCyan`, `auroraTeal`, `skyBlue`. Mapped: scaffold gradient → deepViolet/colorScheme.surface/auroraTeal; orbs → electricMagenta + colorScheme.secondary; alarmas glows → warmCoral/electricMagenta/skyBlue; visualizer gradient stop → warmCoral; premium orbs + tarjeta sweep → brightCyan. ALSO `Colors.grey` → onSurface(0.6), `Colors.green` → colorScheme.secondary, `Colors.white` overlays in reproductor → onSurface/onPrimary/glassBorder. **Reqs:** S5-R1. **DONE.**
+- [x] **T-S5-08** [GREEN] Favorite button: `Semantics(container: true, button, toggled, label)` (container REQUIRED — see T-S5-01) + 48×48 target in both variants. `_AssetIcon` gained `semanticLabel` (decorative images get `excludeFromSemantics: true`); labels on alarm/vacation images + ringing-screen image via NEW keys `alarmIconLabel`/`vacationIconLabel`. **Reqs:** S5-R2. **DONE.**
+- [x] **T-S5-09** [GREEN] `pluri_animate.dart` extended with `pluriFadeSlideIn`; ALL remaining `flutter_animate` call sites routed through PluriAnimate (pantalla_inicio chips + grid stagger, pantalla_buscar results, pantalla_reproductor 8 sites). Zero direct `.animate()` left in lib/. **Reqs:** S5-R3. **DONE.**
+- [x] **T-S5-10** [GREEN] NEW `lib/l10n/formato_fechas.dart` → `fechaCortaLocalizada(localeTag, fecha)`; `_fechaCorta(l10n, fecha)` delegates with `l10n.localeName` (all 6 call sites updated). **Reqs:** S5-R4. **DONE.**
+- [x] **T-S5-11** [GREEN] Group counter → `l10n.stationCount(n)` ICU plural in ALL 13 locales (ru one/few/other, ar one/two/few/other, ja/zh/id other-only). Also NEW `streamUrlHint` key replacing the hardcoded `stream.ejemplo.com` hint. `flutter gen-l10n` regenerated. **Reqs:** S5-R5. **DONE.**
+- [x] **T-S5-12** [GREEN] `TarjetaEmisoraShimmer` rounded (radiusLg image block, radius-6 text lines) + NEW `esCompacta` variant mirroring the search row layout; `PantallaBuscar` loading → 4 compact shimmer rows (pagination spinner untouched, out of S5-R6 scope). **Reqs:** S5-R6. **DONE.**
+- [x] **T-S5-13** [GREEN] 9 icon sites → `_rounded` variants (radio_button_checked, equalizer, add_circle_outline, add, radio, play_arrow, delete_outline, favorite_outline, check_circle). `*_outlined`-family icons left as-is (no rounded-outline variant exists in Material). ALSO `_FormularioEmisora` sheet gained `useSafeArea`/`showDragHandle`. **Reqs:** S5-R7. **DONE.**
+- [x] **T-S5-14** [GREEN] Config extracted to top-level `configuracionAudioService` const; `notificationColor: PluriWaveTokens.brand` (static const → usable in const context). **Reqs:** S5-R8. **DONE.**
 
 ### S5 verification
 
-- [ ] **T-S5-15** Run `flutter test test/widgets/tarjeta_emisora_a11y_test.dart test/tema/pluri_animate_test.dart test/pantallas/pantalla_alarmas_fecha_test.dart test/pantallas/pantalla_favoritos_plural_test.dart`.
-- [ ] **T-S5-16** Run `flutter test` (full suite) — no regressions.
-- [ ] **T-S5-17** Run `flutter analyze` — zero errors (no `Color(0x...)` in modified files beyond token definitions).
-- [ ] **T-S5-18** Run `dart format` on all edited files.
+- [x] **T-S5-15** Targeted run (6 files, 11 tests) — all green (RED captured first: `+0 -6`).
+- [x] **T-S5-16** Full suite 121/121 (110 baseline + 11 new), no regressions.
+- [x] **T-S5-17** `flutter analyze` — `No issues found!`; `rg 'Color(0x' lib` outside lib/tema + l10n/gen → ZERO matches.
+- [x] **T-S5-18** `dart format` on all 20 touched Dart files (7 reflowed); analyze + suite re-run after format.
 
 ### S5 Definition of Done
 - `flutter test` green.

test/pantallas/pantalla_alarmas_fecha_test.dart

@@ -0,0 +1,27 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:intl/date_symbol_data_local.dart';
+import 'package:intl/intl.dart';
+import 'package:pluriwave/l10n/formato_fechas.dart';
+
+/// S5-R4: short dates must follow the active locale, not a hardcoded
+/// DD/MM/YYYY pattern.
+void main() {
+  test('en-US usa el orden mes/día, no el formato fijo DD/MM/YYYY', () {
+    final fecha = DateTime(2026, 6, 11);
+    final resultado = fechaCortaLocalizada('en-US', fecha);
+
+    expect(resultado, DateFormat.yMd('en-US').format(fecha));
+    expect(resultado, isNot('11/06/2026'));
+    expect(resultado, '6/11/2026');
+  });
+
+  test('es usa el orden día/mes', () async {
+    await initializeDateFormatting('es');
+    final fecha = DateTime(2026, 6, 11);
+
+    expect(
+      fechaCortaLocalizada('es', fecha),
+      DateFormat.yMd('es').format(fecha),
+    );
+  });
+}

test/pantallas/pantalla_buscar_shimmer_test.dart

@@ -0,0 +1,41 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:pluriwave/estado/estado_busqueda.dart';
+import 'package:pluriwave/l10n/gen/app_localizations.dart';
+import 'package:pluriwave/pantallas/pantalla_buscar.dart';
+import 'package:pluriwave/widgets/tarjeta_emisora.dart';
+import 'package:provider/provider.dart';
+
+import '../helpers/fakes.dart';
+
+/// S5-R6: the search loading state uses shimmer placeholders, not a bare
+/// spinner, to stay consistent with the rest of the app.
+class _BusquedaCargando extends EstadoBusqueda {
+  _BusquedaCargando() : super(radio: FakeServicioRadio());
+
+  @override
+  bool get cargando => true;
+}
+
+void main() {
+  testWidgets('PantallaBuscar muestra shimmer mientras carga', (tester) async {
+    final busqueda = _BusquedaCargando();
+    addTearDown(busqueda.dispose);
+
+    await tester.pumpWidget(
+      ListenableProvider<EstadoBusqueda>.value(
+        value: busqueda,
+        child: MaterialApp(
+          locale: const Locale('es'),
+          localizationsDelegates: AppLocalizations.localizationsDelegates,
+          supportedLocales: AppLocalizations.supportedLocales,
+          home: const Scaffold(body: PantallaBuscar()),
+        ),
+      ),
+    );
+    await tester.pump();
+
+    expect(find.byType(TarjetaEmisoraShimmer), findsWidgets);
+    expect(find.byType(CircularProgressIndicator), findsNothing);
+  });
+}

test/pantallas/pantalla_favoritos_plural_test.dart

@@ -0,0 +1,20 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:pluriwave/l10n/gen/app_localizations.dart';
+
+/// S5-R5: bare counters must use proper ARB plural messages.
+void main() {
+  test('stationCount cambia entre singular y plural (en)', () async {
+    final l10n = await AppLocalizations.delegate.load(const Locale('en'));
+
+    expect(l10n.stationCount(1), '1 station');
+    expect(l10n.stationCount(5), '5 stations');
+  });
+
+  test('stationCount cambia entre singular y plural (es)', () async {
+    final l10n = await AppLocalizations.delegate.load(const Locale('es'));
+
+    expect(l10n.stationCount(1), isNot(l10n.stationCount(5)));
+    expect(l10n.stationCount(5), contains('5'));
+  });
+}

test/tema/notification_color_test.dart

@@ -0,0 +1,16 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:pluriwave/main.dart';
+import 'package:pluriwave/tema/pluriwave_tokens.dart';
+
+/// S5-R8: the audio notification accent is the PluriWave brand color,
+/// not the M3 default purple.
+void main() {
+  test('AudioServiceConfig usa el color de marca', () {
+    expect(configuracionAudioService.notificationColor, PluriWaveTokens.brand);
+    expect(
+      configuracionAudioService.notificationColor,
+      isNot(const Color(0xFF6750A4)),
+    );
+  });
+}

test/tema/pluri_animate_test.dart

@@ -0,0 +1,78 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_animate/flutter_animate.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:pluriwave/tema/pluri_animate.dart';
+
+/// S5-R3: the central reduced-motion gate. When the OS reports
+/// disableAnimations, the helpers must return the child UNANIMATED
+/// (no [Animate] wrapper at all).
+void main() {
+  Widget host({required bool reducedMotion, required WidgetBuilder builder}) {
+    return MediaQuery(
+      data: MediaQueryData(disableAnimations: reducedMotion),
+      child: Directionality(
+        textDirection: TextDirection.ltr,
+        child: Builder(builder: builder),
+      ),
+    );
+  }
+
+  testWidgets('pluriFadeIn anima en modo normal', (tester) async {
+    await tester.pumpWidget(
+      host(
+        reducedMotion: false,
+        builder: (context) => const Text('hola').pluriFadeIn(context),
+      ),
+    );
+    expect(find.byType(Animate), findsOneWidget);
+    await tester.pumpAndSettle();
+  });
+
+  testWidgets('pluriFadeIn devuelve el hijo intacto con reduced motion', (
+    tester,
+  ) async {
+    await tester.pumpWidget(
+      host(
+        reducedMotion: true,
+        builder: (context) => const Text('hola').pluriFadeIn(context),
+      ),
+    );
+    expect(find.byType(Animate), findsNothing);
+    expect(find.text('hola'), findsOneWidget);
+  });
+
+  testWidgets('pluriFadeSlideIn respeta el gate de reduced motion', (
+    tester,
+  ) async {
+    await tester.pumpWidget(
+      host(
+        reducedMotion: true,
+        builder:
+            (context) =>
+                const Text('hola').pluriFadeSlideIn(context, beginY: 0.2),
+      ),
+    );
+    expect(find.byType(Animate), findsNothing);
+
+    await tester.pumpWidget(
+      host(
+        reducedMotion: false,
+        builder:
+            (context) =>
+                const Text('hola').pluriFadeSlideIn(context, beginY: 0.2),
+      ),
+    );
+    expect(find.byType(Animate), findsOneWidget);
+    await tester.pumpAndSettle();
+  });
+
+  testWidgets('pluriScaleIn respeta el gate de reduced motion', (tester) async {
+    await tester.pumpWidget(
+      host(
+        reducedMotion: true,
+        builder: (context) => const Text('hola').pluriScaleIn(context),
+      ),
+    );
+    expect(find.byType(Animate), findsNothing);
+  });
+}

test/widgets/tarjeta_emisora_a11y_test.dart

@@ -0,0 +1,75 @@
+import 'dart:ui' show Tristate;
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:pluriwave/estado/estado_radio.dart';
+import 'package:pluriwave/l10n/gen/app_localizations.dart';
+import 'package:pluriwave/widgets/tarjeta_emisora.dart';
+import 'package:provider/provider.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import '../helpers/fakes.dart';
+
+/// S5-R2: the mini favorite button in the full card must be accessible
+/// (semantic button with label + toggled state) and reach a 48dp target.
+void main() {
+  setUp(() {
+    SharedPreferences.setMockInitialValues({});
+  });
+
+  testWidgets('el favorito mini es accesible y mide al menos 48x48 dp', (
+    tester,
+  ) async {
+    final semantics = tester.ensureSemantics();
+    final estado = EstadoRadio(
+      audio: FakeServicioAudio(),
+      favoritos: FakeServicioFavoritos(),
+      radio: FakeServicioRadio(),
+      servicioEcualizador: FakeServicioEcualizador(),
+      iniciarAutomaticamente: false,
+    );
+    addTearDown(estado.dispose);
+
+    await tester.pumpWidget(
+      ChangeNotifierProvider<EstadoRadio>.value(
+        value: estado,
+        child: MaterialApp(
+          locale: const Locale('es'),
+          localizationsDelegates: AppLocalizations.localizationsDelegates,
+          supportedLocales: AppLocalizations.supportedLocales,
+          home: Scaffold(
+            body: Center(
+              child: SizedBox(
+                width: 220,
+                height: 300,
+                // Full (non-compact) card: it renders the MINI favorite.
+                child: TarjetaEmisora(
+                  emisora: emisoraDemo(uuid: 'a11y-1', nombre: 'A11y FM'),
+                ),
+              ),
+            ),
+          ),
+        ),
+      ),
+    );
+    await tester.pump();
+
+    final l10n = await AppLocalizations.delegate.load(const Locale('es'));
+
+    // Semantic node: button + label (favorite is OFF, so the "add" label).
+    final boton = find.bySemanticsLabel(l10n.favoritesAddTooltip);
+    expect(boton, findsOneWidget);
+    final nodo = tester.getSemantics(boton);
+    final flags = nodo.flagsCollection;
+    expect(flags.isButton, isTrue);
+    // Toggled state present (favorite OFF) — tristate: not null, not true.
+    expect(flags.isToggled, Tristate.isFalse);
+
+    // Touch target: at least 48x48 dp (S5-R2-A).
+    final size = tester.getSize(boton);
+    expect(size.width, greaterThanOrEqualTo(48));
+    expect(size.height, greaterThanOrEqualTo(48));
+
+    semantics.dispose();
+  });
+}