fix: address the issues found in on-device testing

Seven of the eight points reported after the first real build.

- Favourites overflow menu was clipped to one letter per item by a
  constraints property that sizes the popup, not the button
- Bottom bar painted a square ink splash over the icon, and its lift,
  dim, icon size and label snapped while the balloon slid
- Station artwork fallback is now shared by every surface instead of the
  flat rows painting a plain coloured square
- Vacation ranges can be edited and deleted
- Settings row titles no longer wrap into cut lines
- Sleep timer sheet shows the live countdown
- The last-played station survives a restart, shown stopped

Spacing review is done for Buscar only; the rest of the app is still
outstanding.

Tests: 903 -> 926.

lib/estado/estado_alarmas.dart

@@ -354,6 +354,19 @@ class EstadoAlarmas extends ChangeNotifier {
     await guardarVacaciones(nuevos);
   }
 
+  /// Issue 1 (feedback-pruebas): replaces the range with the same [id] in
+  /// place -- the counterpart `crearRangoVacaciones`/`eliminarRangoVacaciones`
+  /// were missing before this fix, leaving no way to fix a mistake in an
+  /// already-saved range (including the currently ACTIVE one, since a
+  /// freshly created range starts active immediately).
+  Future<void> editarRangoVacaciones(RangoVacaciones rango) async {
+    final nuevos = [
+      for (final actual in _vacaciones)
+        if (actual.id == rango.id) rango else actual,
+    ];
+    await guardarVacaciones(nuevos);
+  }
+
   // ── Vacation queries (design ADR-6, WU9) ──────────────────────────────
   // Four PURE queries: none writes, none reschedules, none touches the
   // native bridge. Read-only over `_alarmas`/`_vacaciones`. Every method

lib/estado/estado_radio.dart

@@ -173,6 +173,10 @@ class EstadoRadio extends ChangeNotifier {
   static const _keyEmisoraPreferida = 'emisora_preferida_uuid_v1';
   static const _keyOrdenListas = 'orden_listas_emisoras_v1';
   static const _keyTimerSuenoPresets = 'timer_sueno_presets_segundos_v1';
+  // Issue 4 (feedback-pruebas): last-played station, so the Escuchar hero
+  // keeps showing "what I was listening to" (stopped, not playing) after a
+  // full app restart instead of going empty.
+  static const _keyUltimaEmisora = 'ultima_emisora_v1';
   static const _timerSuenoPresetsDefecto = <int>[
     180,
     300,
@@ -300,6 +304,50 @@ class EstadoRadio extends ChangeNotifier {
       _cargarEmisorasCustom(),
     ]);
     await _normalizarEmisoraPreferida();
+    await _restaurarUltimaEmisora();
+  }
+
+  /// Issue 4 (feedback-pruebas): restores the last-played station as a
+  /// STOPPED `emisoraActual` on a cold start. Only fills the gap — if
+  /// something is ALREADY selected (a real play already ran concurrently),
+  /// this is a no-op. Never touches `audio`: no playback starts, no network
+  /// request is made, `estadoStream`/`estaSonando` stay at their fresh
+  /// "detenido" default, exactly like every other consumer of
+  /// `emisoraActual` already expects (they gate "is it playing" on the
+  /// separate playback-status stream, never on `emisoraActual != null`).
+  Future<void> _restaurarUltimaEmisora() async {
+    if (_emisoraSeleccionada != null || audio.emisoraActual != null) return;
+    try {
+      final prefs = await _resolverPrefs();
+      final raw = prefs.getString(_keyUltimaEmisora);
+      if (raw == null) return;
+      final mapa = jsonDecode(raw) as Map<String, dynamic>;
+      _emisoraSeleccionada = Emisora.fromMap(mapa);
+    } catch (e) {
+      registrarSaltoPersistencia(
+        subsistema: 'ultima_emisora',
+        detalle: 'restaurar',
+        razon: e.toString(),
+      );
+    }
+  }
+
+  /// Best-effort remembers [emisora] as the last used station (issue 4) so
+  /// [_restaurarUltimaEmisora] can bring it back after a restart. Fire-and-
+  /// forget, same treatment [reproducir] already gives other non-critical
+  /// side effects (e.g. `radio.registrarClick`) — a failed write here must
+  /// never block or fail actual playback.
+  Future<void> _persistirUltimaEmisora(Emisora emisora) async {
+    try {
+      final prefs = await _resolverPrefs();
+      await prefs.setString(_keyUltimaEmisora, jsonEncode(emisora.toMap()));
+    } catch (e) {
+      registrarSaltoPersistencia(
+        subsistema: 'ultima_emisora',
+        detalle: 'persistir ${emisora.uuid}',
+        razon: e.toString(),
+      );
+    }
   }
 
   /// Escucha el stream de estado del audio y gestiona errores de reproducción.
@@ -321,6 +369,9 @@ class EstadoRadio extends ChangeNotifier {
       final actual = audio.emisoraActual;
       if (actual != null && actual.uuid != _emisoraSeleccionada?.uuid) {
         _emisoraSeleccionada = actual;
+        // Issue 4: an Android-Auto-initiated selection is a real station
+        // change too — remember it the same way `reproducir` does.
+        unawaited(_persistirUltimaEmisora(actual));
       }
       notifyListeners();
     });
@@ -508,6 +559,10 @@ class EstadoRadio extends ChangeNotifier {
     }
     _emisoraSeleccionada = emisora;
     notifyListeners();
+    // Issue 4: remembers the station the user just picked so it survives a
+    // restart — fire-and-forget, same treatment as `radio.registrarClick`
+    // below (a persistence failure here must never block playback).
+    unawaited(_persistirUltimaEmisora(emisora));
     try {
       await audio.reproducir(emisora);
       if (revision != _revisionReproduccion) return;

lib/l10n/app_ar.arb

@@ -468,6 +468,9 @@
   "deleteRangeTooltip": "حذف النطاق",
   "vacationsDefaultName": "إجازات",
   "newVacationRangeTitle": "نطاق إجازة جديد",
+  "editVacationRangeTitle": "تعديل نطاق الإجازة",
+  "vacationDeleteConfirmTitle": "هل تريد حذف نطاق الإجازة؟",
+  "vacationDeleteConfirmMessage": "لا يمكن التراجع عن هذا الإجراء.",
   "startField": "البداية",
   "endField": "النهاية",
   "saveRangeAction": "حفظ النطاق",

lib/l10n/app_bn.arb

@@ -468,6 +468,9 @@
   "deleteRangeTooltip": "পরিসর মুছুন",
   "vacationsDefaultName": "ছুটি",
   "newVacationRangeTitle": "নতুন ছুটির পরিসর",
+  "editVacationRangeTitle": "ছুটির পরিসর সম্পাদনা করুন",
+  "vacationDeleteConfirmTitle": "ছুটির পরিসর মুছবেন?",
+  "vacationDeleteConfirmMessage": "এই পদক্ষেপ ফিরিয়ে নেওয়া যাবে না।",
   "startField": "শুরু",
   "endField": "শেষ",
   "saveRangeAction": "পরিসর সংরক্ষণ করুন",

lib/l10n/app_de.arb

@@ -468,6 +468,9 @@
   "deleteRangeTooltip": "Zeitraum löschen",
   "vacationsDefaultName": "Ferien",
   "newVacationRangeTitle": "Neuer Ferienzeitraum",
+  "editVacationRangeTitle": "Ferienzeitraum bearbeiten",
+  "vacationDeleteConfirmTitle": "Ferienzeitraum löschen?",
+  "vacationDeleteConfirmMessage": "Dies kann nicht rückgängig gemacht werden.",
   "startField": "Beginn",
   "endField": "Ende",
   "saveRangeAction": "Zeitraum speichern",

lib/l10n/app_en.arb

@@ -580,6 +580,9 @@
   "vacationNoActiveRangeHint": "No active vacation range right now.",
   "vacationsDefaultName": "Vacation",
   "newVacationRangeTitle": "New vacation range",
+  "editVacationRangeTitle": "Edit vacation range",
+  "vacationDeleteConfirmTitle": "Delete vacation range?",
+  "vacationDeleteConfirmMessage": "This can't be undone.",
   "startField": "Start",
   "endField": "End",
   "saveRangeAction": "Save range",

lib/l10n/app_es.arb

@@ -580,6 +580,9 @@
   "vacationNoActiveRangeHint": "No hay un rango de vacaciones activo ahora mismo.",
   "vacationsDefaultName": "Vacaciones",
   "newVacationRangeTitle": "Nuevo rango de vacaciones",
+  "editVacationRangeTitle": "Editar rango de vacaciones",
+  "vacationDeleteConfirmTitle": "¿Eliminar rango de vacaciones?",
+  "vacationDeleteConfirmMessage": "Esta acción no se puede deshacer.",
   "startField": "Inicio",
   "endField": "Fin",
   "saveRangeAction": "Guardar rango",

lib/l10n/app_fr.arb

@@ -468,6 +468,9 @@
   "deleteRangeTooltip": "Supprimer la période",
   "vacationsDefaultName": "Vacances",
   "newVacationRangeTitle": "Nouvelle période de vacances",
+  "editVacationRangeTitle": "Modifier la période de vacances",
+  "vacationDeleteConfirmTitle": "Supprimer la période de vacances ?",
+  "vacationDeleteConfirmMessage": "Cette action est irréversible.",
   "startField": "Début",
   "endField": "Fin",
   "saveRangeAction": "Enregistrer la période",

lib/l10n/app_hi.arb

@@ -468,6 +468,9 @@
   "deleteRangeTooltip": "अवधि हटाएँ",
   "vacationsDefaultName": "छुट्टियाँ",
   "newVacationRangeTitle": "नई छुट्टी अवधि",
+  "editVacationRangeTitle": "छुट्टी अवधि संपादित करें",
+  "vacationDeleteConfirmTitle": "छुट्टी अवधि हटाएं?",
+  "vacationDeleteConfirmMessage": "इसे वापस नहीं लिया जा सकता।",
   "startField": "शुरुआत",
   "endField": "समाप्ति",
   "saveRangeAction": "अवधि सहेजें",

lib/l10n/app_id.arb

@@ -468,6 +468,9 @@
   "deleteRangeTooltip": "Hapus rentang",
   "vacationsDefaultName": "Liburan",
   "newVacationRangeTitle": "Rentang liburan baru",
+  "editVacationRangeTitle": "Edit rentang liburan",
+  "vacationDeleteConfirmTitle": "Hapus rentang liburan?",
+  "vacationDeleteConfirmMessage": "Tindakan ini tidak dapat dibatalkan.",
   "startField": "Mulai",
   "endField": "Akhir",
   "saveRangeAction": "Simpan rentang",

lib/l10n/app_it.arb

@@ -468,6 +468,9 @@
   "deleteRangeTooltip": "Elimina periodo",
   "vacationsDefaultName": "Vacanze",
   "newVacationRangeTitle": "Nuovo periodo di vacanza",
+  "editVacationRangeTitle": "Modifica periodo di vacanza",
+  "vacationDeleteConfirmTitle": "Eliminare il periodo di vacanza?",
+  "vacationDeleteConfirmMessage": "Questa azione non può essere annullata.",
   "startField": "Inizio",
   "endField": "Fine",
   "saveRangeAction": "Salva periodo",

lib/l10n/app_ja.arb

@@ -468,6 +468,9 @@
   "deleteRangeTooltip": "期間を削除",
   "vacationsDefaultName": "休暇",
   "newVacationRangeTitle": "新しい休暇期間",
+  "editVacationRangeTitle": "休暇期間を編集",
+  "vacationDeleteConfirmTitle": "休暇期間を削除しますか?",
+  "vacationDeleteConfirmMessage": "この操作は元に戻せません。",
   "startField": "開始",
   "endField": "終了",
   "saveRangeAction": "期間を保存",

lib/l10n/app_pt.arb

@@ -468,6 +468,9 @@
   "deleteRangeTooltip": "Excluir período",
   "vacationsDefaultName": "Férias",
   "newVacationRangeTitle": "Novo período de férias",
+  "editVacationRangeTitle": "Editar período de férias",
+  "vacationDeleteConfirmTitle": "Excluir período de férias?",
+  "vacationDeleteConfirmMessage": "Esta ação não pode ser desfeita.",
   "startField": "Início",
   "endField": "Fim",
   "saveRangeAction": "Salvar período",

lib/l10n/app_ru.arb

@@ -468,6 +468,9 @@
   "deleteRangeTooltip": "Удалить период",
   "vacationsDefaultName": "Отпуск",
   "newVacationRangeTitle": "Новый период отпуска",
+  "editVacationRangeTitle": "Изменить период отпуска",
+  "vacationDeleteConfirmTitle": "Удалить период отпуска?",
+  "vacationDeleteConfirmMessage": "Это действие нельзя отменить.",
   "startField": "Начало",
   "endField": "Конец",
   "saveRangeAction": "Сохранить период",

lib/l10n/app_zh.arb

@@ -468,6 +468,9 @@
   "deleteRangeTooltip": "删除范围",
   "vacationsDefaultName": "假期",
   "newVacationRangeTitle": "新的假期范围",
+  "editVacationRangeTitle": "编辑假期范围",
+  "vacationDeleteConfirmTitle": "删除假期范围？",
+  "vacationDeleteConfirmMessage": "此操作无法撤销。",
   "startField": "开始",
   "endField": "结束",
   "saveRangeAction": "保存范围",

lib/l10n/gen/app_localizations.dart

@@ -2078,6 +2078,24 @@ abstract class AppLocalizations {
   /// **'Nuevo rango de vacaciones'**
   String get newVacationRangeTitle;
 
+  /// No description provided for @editVacationRangeTitle.
+  ///
+  /// In es, this message translates to:
+  /// **'Editar rango de vacaciones'**
+  String get editVacationRangeTitle;
+
+  /// No description provided for @vacationDeleteConfirmTitle.
+  ///
+  /// In es, this message translates to:
+  /// **'¿Eliminar rango de vacaciones?'**
+  String get vacationDeleteConfirmTitle;
+
+  /// No description provided for @vacationDeleteConfirmMessage.
+  ///
+  /// In es, this message translates to:
+  /// **'Esta acción no se puede deshacer.'**
+  String get vacationDeleteConfirmMessage;
+
   /// No description provided for @startField.
   ///
   /// In es, this message translates to:

lib/l10n/gen/app_localizations_ar.dart

@@ -1133,6 +1133,15 @@ class AppLocalizationsAr extends AppLocalizations {
   @override
   String get newVacationRangeTitle => 'نطاق إجازة جديد';
 
+  @override
+  String get editVacationRangeTitle => 'تعديل نطاق الإجازة';
+
+  @override
+  String get vacationDeleteConfirmTitle => 'هل تريد حذف نطاق الإجازة؟';
+
+  @override
+  String get vacationDeleteConfirmMessage => 'لا يمكن التراجع عن هذا الإجراء.';
+
   @override
   String get startField => 'البداية';
 

lib/l10n/gen/app_localizations_bn.dart

@@ -1140,6 +1140,16 @@ class AppLocalizationsBn extends AppLocalizations {
   @override
   String get newVacationRangeTitle => 'নতুন ছুটির পরিসর';
 
+  @override
+  String get editVacationRangeTitle => 'ছুটির পরিসর সম্পাদনা করুন';
+
+  @override
+  String get vacationDeleteConfirmTitle => 'ছুটির পরিসর মুছবেন?';
+
+  @override
+  String get vacationDeleteConfirmMessage =>
+      'এই পদক্ষেপ ফিরিয়ে নেওয়া যাবে না।';
+
   @override
   String get startField => 'শুরু';
 

lib/l10n/gen/app_localizations_de.dart

@@ -1142,6 +1142,16 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get newVacationRangeTitle => 'Neuer Ferienzeitraum';
 
+  @override
+  String get editVacationRangeTitle => 'Ferienzeitraum bearbeiten';
+
+  @override
+  String get vacationDeleteConfirmTitle => 'Ferienzeitraum löschen?';
+
+  @override
+  String get vacationDeleteConfirmMessage =>
+      'Dies kann nicht rückgängig gemacht werden.';
+
   @override
   String get startField => 'Beginn';
 

lib/l10n/gen/app_localizations_en.dart

@@ -1133,6 +1133,15 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get newVacationRangeTitle => 'New vacation range';
 
+  @override
+  String get editVacationRangeTitle => 'Edit vacation range';
+
+  @override
+  String get vacationDeleteConfirmTitle => 'Delete vacation range?';
+
+  @override
+  String get vacationDeleteConfirmMessage => 'This can\'t be undone.';
+
   @override
   String get startField => 'Start';
 

lib/l10n/gen/app_localizations_es.dart

@@ -1139,6 +1139,16 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get newVacationRangeTitle => 'Nuevo rango de vacaciones';
 
+  @override
+  String get editVacationRangeTitle => 'Editar rango de vacaciones';
+
+  @override
+  String get vacationDeleteConfirmTitle => '¿Eliminar rango de vacaciones?';
+
+  @override
+  String get vacationDeleteConfirmMessage =>
+      'Esta acción no se puede deshacer.';
+
   @override
   String get startField => 'Inicio';
 

lib/l10n/gen/app_localizations_fr.dart

@@ -1145,6 +1145,15 @@ class AppLocalizationsFr extends AppLocalizations {
   @override
   String get newVacationRangeTitle => 'Nouvelle période de vacances';
 
+  @override
+  String get editVacationRangeTitle => 'Modifier la période de vacances';
+
+  @override
+  String get vacationDeleteConfirmTitle => 'Supprimer la période de vacances ?';
+
+  @override
+  String get vacationDeleteConfirmMessage => 'Cette action est irréversible.';
+
   @override
   String get startField => 'Début';
 

lib/l10n/gen/app_localizations_hi.dart

@@ -1134,6 +1134,15 @@ class AppLocalizationsHi extends AppLocalizations {
   @override
   String get newVacationRangeTitle => 'नई छुट्टी अवधि';
 
+  @override
+  String get editVacationRangeTitle => 'छुट्टी अवधि संपादित करें';
+
+  @override
+  String get vacationDeleteConfirmTitle => 'छुट्टी अवधि हटाएं?';
+
+  @override
+  String get vacationDeleteConfirmMessage => 'इसे वापस नहीं लिया जा सकता।';
+
   @override
   String get startField => 'शुरुआत';
 

lib/l10n/gen/app_localizations_id.dart

@@ -1139,6 +1139,16 @@ class AppLocalizationsId extends AppLocalizations {
   @override
   String get newVacationRangeTitle => 'Rentang liburan baru';
 
+  @override
+  String get editVacationRangeTitle => 'Edit rentang liburan';
+
+  @override
+  String get vacationDeleteConfirmTitle => 'Hapus rentang liburan?';
+
+  @override
+  String get vacationDeleteConfirmMessage =>
+      'Tindakan ini tidak dapat dibatalkan.';
+
   @override
   String get startField => 'Mulai';
 

lib/l10n/gen/app_localizations_it.dart

@@ -1144,6 +1144,16 @@ class AppLocalizationsIt extends AppLocalizations {
   @override
   String get newVacationRangeTitle => 'Nuovo periodo di vacanza';
 
+  @override
+  String get editVacationRangeTitle => 'Modifica periodo di vacanza';
+
+  @override
+  String get vacationDeleteConfirmTitle => 'Eliminare il periodo di vacanza?';
+
+  @override
+  String get vacationDeleteConfirmMessage =>
+      'Questa azione non può essere annullata.';
+
   @override
   String get startField => 'Inizio';
 

lib/l10n/gen/app_localizations_ja.dart

@@ -1101,6 +1101,15 @@ class AppLocalizationsJa extends AppLocalizations {
   @override
   String get newVacationRangeTitle => '新しい休暇期間';
 
+  @override
+  String get editVacationRangeTitle => '休暇期間を編集';
+
+  @override
+  String get vacationDeleteConfirmTitle => '休暇期間を削除しますか?';
+
+  @override
+  String get vacationDeleteConfirmMessage => 'この操作は元に戻せません。';
+
   @override
   String get startField => '開始';
 

lib/l10n/gen/app_localizations_pt.dart

@@ -1138,6 +1138,15 @@ class AppLocalizationsPt extends AppLocalizations {
   @override
   String get newVacationRangeTitle => 'Novo período de férias';
 
+  @override
+  String get editVacationRangeTitle => 'Editar período de férias';
+
+  @override
+  String get vacationDeleteConfirmTitle => 'Excluir período de férias?';
+
+  @override
+  String get vacationDeleteConfirmMessage => 'Esta ação não pode ser desfeita.';
+
   @override
   String get startField => 'Início';
 

lib/l10n/gen/app_localizations_ru.dart

@@ -1140,6 +1140,15 @@ class AppLocalizationsRu extends AppLocalizations {
   @override
   String get newVacationRangeTitle => 'Новый период отпуска';
 
+  @override
+  String get editVacationRangeTitle => 'Изменить период отпуска';
+
+  @override
+  String get vacationDeleteConfirmTitle => 'Удалить период отпуска?';
+
+  @override
+  String get vacationDeleteConfirmMessage => 'Это действие нельзя отменить.';
+
   @override
   String get startField => 'Начало';
 

lib/l10n/gen/app_localizations_zh.dart

@@ -1097,6 +1097,15 @@ class AppLocalizationsZh extends AppLocalizations {
   @override
   String get newVacationRangeTitle => '新的假期范围';
 
+  @override
+  String get editVacationRangeTitle => '编辑假期范围';
+
+  @override
+  String get vacationDeleteConfirmTitle => '删除假期范围？';
+
+  @override
+  String get vacationDeleteConfirmMessage => '此操作无法撤销。';
+
   @override
   String get startField => '开始';
 

lib/pantallas/ajustes/widgets/fila_ajuste.dart

@@ -93,6 +93,14 @@ class FilaAjuste extends StatelessWidget {
   /// "no accent" — the icon renders exactly as before.
   final Color? iconColor;
 
+  /// Issue 5 (feedback-pruebas): caps how much width the trailing current
+  /// value can claim. `ListTile` gives `trailing` as much width as it wants
+  /// before handing the title whatever is left — an unbounded value (e.g. a
+  /// real, arbitrarily long station name for "Emisora preferida") could
+  /// squeeze the title down to almost nothing, forcing it to wrap across
+  /// several lines that then get cut short by the row's fixed height.
+  static const _anchoMaximoValor = 108.0;
+
   @override
   Widget build(BuildContext context) {
     final type = context.pluriType;
@@ -106,18 +114,33 @@ class FilaAjuste extends StatelessWidget {
       // 14px/w700 (t4 line 514); cardTitle is 14.5/w700 — a one-off
       // override, not a new PluriWaveTypography style (mirrors the
       // precedent set for the ringing screen's station name, audit 9.7).
-      title: Text(titulo, style: type.cardTitle.copyWith(fontSize: 14)),
+      // Issue 5: constrained to one line, ellipsizing instead of wrapping —
+      // labels must wrap as little as possible and never render visibly
+      // truncated (a multi-line wrap inside this fixed-height row cuts the
+      // last line short, which reads as broken, not as intentional).
+      title: Text(
+        titulo,
+        style: type.cardTitle.copyWith(fontSize: 14),
+        maxLines: 1,
+        overflow: TextOverflow.ellipsis,
+      ),
       trailing: Row(
         mainAxisSize: MainAxisSize.min,
         children: [
           if (valorActual != null) ...[
-            Text(
+            ConstrainedBox(
+              constraints: const BoxConstraints(maxWidth: _anchoMaximoValor),
+              child: Text(
                 valorActual,
                 // bodyStrong is already 13/w600, matching the prototype's row
                 // value spec exactly — only the colour needs overriding.
                 style: type.bodyStrong.copyWith(
                   color: const Color(0xFFF2F7FA).withValues(alpha: 0.55),
                 ),
+                maxLines: 1,
+                overflow: TextOverflow.ellipsis,
+                textAlign: TextAlign.end,
+              ),
             ),
             const SizedBox(width: 6),
           ],

lib/pantallas/pantalla_buscar.dart

@@ -543,8 +543,17 @@ class _PantallaBuscarState extends State<PantallaBuscar> {
     if (estado.cargando) {
       // S5-R6: shimmer placeholders instead of a bare spinner, consistent
       // with the loading pattern used by the home grid.
+      // Issue 3 (feedback-pruebas): row tier (12), not card tier (16) --
+      // these are background-less row placeholders, same tier as the real
+      // results below; the top inset is the standard section gap rather
+      // than the horizontal constant reused for a vertical axis.
       return Padding(
-        padding: const EdgeInsets.all(PluriLayout.horizontal),
+        padding: const EdgeInsets.fromLTRB(
+          PluriLayout.rowHorizontal,
+          PluriLayout.sectionGap,
+          PluriLayout.rowHorizontal,
+          PluriLayout.rowHorizontal,
+        ),
         child: Column(
           crossAxisAlignment: CrossAxisAlignment.start,
           children: [
@@ -579,8 +588,17 @@ class _PantallaBuscarState extends State<PantallaBuscar> {
       // across the app -- favorites, the discovery grid -- which this
       // item does not touch).
       final query = _controller.text.trim();
+      // Issue 3 (feedback-pruebas): this card-tier state had NO top gap at
+      // all against the filter row above it -- the standard section gap
+      // now matches the other two mutually-exclusive results-area states
+      // (loading, populated) above.
       return Padding(
-        padding: const EdgeInsets.symmetric(horizontal: PluriLayout.horizontal),
+        padding: const EdgeInsets.fromLTRB(
+          PluriLayout.horizontal,
+          PluriLayout.sectionGap,
+          PluriLayout.horizontal,
+          0,
+        ),
         child: _TarjetaSinResultados(
           titulo:
               sinFiltros
@@ -616,7 +634,17 @@ class _PantallaBuscarState extends State<PantallaBuscar> {
     return ListView.builder(
       shrinkWrap: true,
       physics: const NeverScrollableScrollPhysics(),
-      padding: const EdgeInsets.all(PluriLayout.horizontal),
+      // Issue 3 (feedback-pruebas): row tier (12), not card tier (16) --
+      // `FilaEmisoraPlana` rows are documented as "flat, background-less"
+      // (audit 6.5) but this padding never got updated to match when Tier 1
+      // introduced the 3-tier scale. The top inset is the standard section
+      // gap, not the horizontal constant reused for a vertical axis.
+      padding: const EdgeInsets.fromLTRB(
+        PluriLayout.rowHorizontal,
+        PluriLayout.sectionGap,
+        PluriLayout.rowHorizontal,
+        PluriLayout.rowHorizontal,
+      ),
       itemCount: total,
       itemBuilder: (context, i) {
         if (i >= resultados.length) {

lib/pantallas/pantalla_favoritos.dart

@@ -465,7 +465,13 @@ class _FilaFavorito extends StatelessWidget {
               context,
             ).colorScheme.onSurface.withValues(alpha: 0.45),
           ),
-          constraints: const BoxConstraints.tightFor(width: 38, height: 42),
+          // NO `constraints:` here. That property sizes the POPUP MENU, not
+          // the button — a tightFor(38x42) clipped every menu item down to
+          // its first letter ("M" for "Mover a lista", "E" for "Eliminar de
+          // favoritos"), which is what users actually saw. Constrain the
+          // tap target instead.
+          padding: EdgeInsets.zero,
+          iconSize: 20,
           onSelected: (accion) {
             if (accion == 'assign') _asignar(context);
             if (accion == 'remove') _eliminar(context);

lib/pantallas/pantalla_inicio.dart

@@ -15,6 +15,7 @@ import '../widgets/pluri_glass_surface.dart';
 import '../widgets/pluri_layout.dart';
 import '../widgets/pluri_premium_widgets.dart';
 import '../widgets/pluri_sleep_timer_sheet.dart';
+import '../widgets/pluri_station_art_fallback.dart';
 import '../widgets/visualizador_audio.dart';
 
 import 'pantalla_reproductor.dart';
@@ -568,9 +569,9 @@ class _ArteEscuchar extends StatelessWidget {
                     imageUrl: emisora.favicon!,
                     fit: BoxFit.cover,
                     placeholder: (_, __) => _shimmerCuadrado(theme),
-                    errorWidget: (_, __, ___) => _iconoFallback(theme),
+                    errorWidget: (_, __, ___) => _iconoFallback(),
                   )
-                  : _iconoFallback(theme),
+                  : _iconoFallback(),
         ),
       ),
     );
@@ -582,14 +583,11 @@ class _ArteEscuchar extends StatelessWidget {
     child: Container(color: theme.colorScheme.surfaceContainerHighest),
   );
 
-  Widget _iconoFallback(ThemeData theme) => Container(
+  // Issue 6 (feedback-pruebas): was a flat `primaryContainer` square with a
-    color: theme.colorScheme.primaryContainer,
+  // bare `radio_rounded` icon — now the same shared fallback every other
-    child: Icon(
+  // surface uses.
-      Icons.radio_rounded,
+  Widget _iconoFallback() =>
-      size: 36,
+      PluriStationArtFallback(seed: emisora.uuid, iconSize: 36);
-      color: theme.colorScheme.onPrimaryContainer,
-    ),
-  );
 }
 
 /// The hero's transport row — favorite / EQ toggle / stop / play-pause
@@ -909,10 +907,10 @@ class _CeldaTusEmisoras extends StatelessWidget {
         imageUrl: emisora.favicon!,
         fit: BoxFit.cover,
         placeholder: (_, __) => _shimmer(theme),
-        errorWidget: (_, __, ___) => _iconoFallback(theme),
+        errorWidget: (_, __, ___) => _iconoFallback(),
       );
     }
-    return _iconoFallback(theme);
+    return _iconoFallback();
   }
 
   Widget _shimmer(ThemeData theme) => shimmer.Shimmer.fromColors(
@@ -921,12 +919,9 @@ class _CeldaTusEmisoras extends StatelessWidget {
     child: Container(color: theme.colorScheme.surfaceContainerHighest),
   );
 
-  Widget _iconoFallback(ThemeData theme) => Container(
+  // Issue 6 (feedback-pruebas): was a flat `primaryContainer` square with a
-    color: theme.colorScheme.primaryContainer,
+  // bare `radio_rounded` icon — now the same shared fallback every other
-    child: Icon(
+  // surface uses.
-      Icons.radio_rounded,
+  Widget _iconoFallback() =>
-      size: 20,
+      PluriStationArtFallback(seed: emisora.uuid, iconSize: 20);
-      color: theme.colorScheme.onPrimaryContainer,
-    ),
-  );
 }

lib/pantallas/pantalla_reproductor.dart

@@ -20,6 +20,7 @@ import '../widgets/ecualizador_widget.dart';
 import '../widgets/pluri_glass_surface.dart';
 import '../widgets/pluri_premium_widgets.dart';
 import '../widgets/pluri_push_scaffold.dart';
+import '../widgets/pluri_station_art_fallback.dart';
 import '../widgets/visualizador_audio.dart';
 
 /// WU14: restructured onto [PluriPushScaffold] (design ADR-2) — this screen
@@ -291,10 +292,10 @@ class _ArteReproductor extends StatelessWidget {
                         imageUrl: emisora.favicon!,
                         fit: BoxFit.cover,
                         placeholder: (_, __) => _shimmer(theme),
-                        errorWidget: (_, __, ___) => _iconoFallback(theme),
+                        errorWidget: (_, __, ___) => _iconoFallback(),
                       )
                     else
-                      _iconoFallback(theme),
+                      _iconoFallback(),
                     if (cargando)
                       Container(
                         color: Colors.black45,
@@ -333,14 +334,11 @@ class _ArteReproductor extends StatelessWidget {
     child: Container(color: theme.colorScheme.surfaceContainerHighest),
   );
 
-  Widget _iconoFallback(ThemeData theme) => Container(
+  // Issue 6 (feedback-pruebas): was a flat `primaryContainer` square with a
-    color: theme.colorScheme.primaryContainer,
+  // bare `radio_rounded` icon — now the same shared fallback every other
-    child: Icon(
+  // surface uses.
-      Icons.radio_rounded,
+  Widget _iconoFallback() =>
-      size: 80,
+      PluriStationArtFallback(seed: emisora.uuid, iconSize: 80);
-      color: theme.colorScheme.onPrimaryContainer,
-    ),
-  );
 }
 
 /// Audit 2.2 (t4 lines 108-109): a full-bleed blurred backdrop of the

lib/pantallas/pantalla_vacaciones.dart

@@ -82,13 +82,78 @@ class PantallaVacaciones extends StatelessWidget {
     );
   }
 
-  Future<void> _abrirAlta(BuildContext context) async {
+  Future<void> _abrirAlta(BuildContext context) =>
+      _abrirEditorVacaciones(context);
+}
+
+/// Issue 1 (feedback-pruebas): the ONE sheet-opener both the header/CTA
+/// "create" entry points and every range's own "tap to edit" affordance call
+/// -- passing [rango] switches the sheet from create to edit mode (mirrors
+/// `pantalla_alarmas.dart`'s `_abrirEditor`/`_EditorAlarmaSheet` split).
+Future<void> _abrirEditorVacaciones(
+  BuildContext context, {
+  RangoVacaciones? rango,
+}) async {
   await showModalBottomSheet<void>(
     context: context,
     isScrollControlled: true,
     useSafeArea: true,
     backgroundColor: Colors.transparent,
-      builder: (_) => const _EditorVacacionesSheet(),
+    builder: (_) => _EditorVacacionesSheet(rango: rango),
+  );
+}
+
+/// Issue 1 (feedback-pruebas): mirrors `pantalla_alarmas.dart`'s
+/// `_confirmarEliminarAlarma` exactly -- same AlertDialog shape, same
+/// generic delete/cancel actions, only the copy is vacation-specific.
+Future<bool> _confirmarEliminarRango(
+  BuildContext context,
+  AppLocalizations l10n,
+) async {
+  final confirmado = await showDialog<bool>(
+    context: context,
+    builder:
+        (ctx) => AlertDialog(
+          title: Text(l10n.vacationDeleteConfirmTitle),
+          content: Text(l10n.vacationDeleteConfirmMessage),
+          actions: [
+            TextButton(
+              onPressed: () => Navigator.pop(ctx, false),
+              child: Text(l10n.cancelAction),
+            ),
+            FilledButton(
+              onPressed: () => Navigator.pop(ctx, true),
+              child: Text(l10n.deleteAction),
+            ),
+          ],
+        ),
+  );
+  return confirmado ?? false;
+}
+
+/// Swipe-to-delete reveal shown on both sides, mirroring
+/// `pantalla_alarmas.dart`'s `_FondoSwipeEliminarAlarma` -- duplicated
+/// rather than shared, matching this codebase's own precedent for tiny
+/// per-screen chrome (see this file's `_DashedBorderPainter` doc comment).
+class _FondoSwipeEliminarRango extends StatelessWidget {
+  const _FondoSwipeEliminarRango({required this.alignment});
+
+  final Alignment alignment;
+
+  @override
+  Widget build(BuildContext context) {
+    final tokens = context.pluriTokens;
+    return Container(
+      alignment: alignment,
+      padding: const EdgeInsets.symmetric(horizontal: 24),
+      decoration: BoxDecoration(
+        color: Theme.of(context).colorScheme.error,
+        borderRadius: BorderRadius.circular(tokens.radiusMd),
+      ),
+      child: Icon(
+        Icons.delete_outline_rounded,
+        color: Theme.of(context).colorScheme.onError,
+      ),
     );
   }
 }
@@ -242,24 +307,51 @@ class _HeroRangoActivo extends StatelessWidget {
     final diasRestantes = rango.finDia.difference(hoyDia).inDays;
     final impacto = estado.impactoDeRango(rango);
     final type = context.pluriType;
+    final tokens = context.pluriTokens;
 
-    return PluriGlassSurface(
+    // Issue 1 (feedback-pruebas): a range starts ACTIVE the instant it's
-      glowColor: context.pluriTokens.electricMagenta.withValues(alpha: 0.24),
+    // created (today .. today+2), so this hero is the ONLY place a
+    // brand-new range ever renders until it either becomes "programado" in
+    // the future or "pasado" once it ends. Without tap/swipe here, the
+    // very first range a user creates could never be fixed or removed.
+    return Dismissible(
+      key: ValueKey('vacaciones-tarjeta-${rango.id}'),
+      direction: DismissDirection.horizontal,
+      background: const _FondoSwipeEliminarRango(
+        alignment: Alignment.centerLeft,
+      ),
+      secondaryBackground: const _FondoSwipeEliminarRango(
+        alignment: Alignment.centerRight,
+      ),
+      confirmDismiss: (_) => _confirmarEliminarRango(context, l10n),
+      onDismissed: (_) => estado.eliminarRangoVacaciones(rango.id),
+      child: PluriGlassSurface(
+        glowColor: tokens.electricMagenta.withValues(alpha: 0.24),
+        padding: EdgeInsets.zero,
+        child: Material(
+          type: MaterialType.transparency,
+          child: InkWell(
+            borderRadius: BorderRadius.circular(tokens.radiusMd),
+            onTap: () => _abrirEditorVacaciones(context, rango: rango),
+            child: Padding(
+              padding: const EdgeInsets.all(16),
               child: Column(
                 crossAxisAlignment: CrossAxisAlignment.start,
                 children: [
                   Text(
                     localizedVacationName(l10n, rango.nombre),
-            style: Theme.of(
+                    style: Theme.of(context).textTheme.titleLarge?.copyWith(
-              context,
+                      fontWeight: FontWeight.w900,
-            ).textTheme.titleLarge?.copyWith(fontWeight: FontWeight.w900),
+                    ),
                   ),
                   const SizedBox(height: 4),
                   // Item 21 / audit 9b.4 (t4:454): the "active now" caption is a
                   // teal eyebrow, not default body text.
                   Text(
                     l10n.vacationSummaryActiveCountdown(diasRestantes),
-            style: type.eyebrowLabel.copyWith(color: PluriWaveTokens.brand),
+                    style: type.eyebrowLabel.copyWith(
+                      color: PluriWaveTokens.brand,
+                    ),
                   ),
                   const SizedBox(height: 12),
                   // Item 21 / audit 9b.4 (t4:451-462): the screen's signature
@@ -273,16 +365,24 @@ class _HeroRangoActivo extends StatelessWidget {
                   ),
                   if (impacto.pausadas.isNotEmpty) ...[
                     const SizedBox(height: 12),
-            Text(l10n.vacationImpactPausedLabel(_horas(impacto.pausadas))),
+                    Text(
+                      l10n.vacationImpactPausedLabel(_horas(impacto.pausadas)),
+                    ),
                   ],
                   if (impacto.noAfectadas.isNotEmpty) ...[
                     const SizedBox(height: 4),
                     Text(
-              l10n.vacationImpactContinuesLabel(_horas(impacto.noAfectadas)),
+                      l10n.vacationImpactContinuesLabel(
+                        _horas(impacto.noAfectadas),
+                      ),
                     ),
                   ],
                 ],
               ),
+            ),
+          ),
+        ),
+      ),
     );
   }
 
@@ -452,12 +552,33 @@ class _TarjetaRangoVacaciones extends StatelessWidget {
     final l10n = AppLocalizations.of(context);
     final t = context.pluriTokens;
     final type = context.pluriType;
-    return DecoratedBox(
+    final estado = context.read<EstadoAlarmas>();
+    // Issue 1 (feedback-pruebas): tap = edit, swipe = delete (with
+    // confirmation) — same interaction `pantalla_alarmas.dart`'s
+    // `_TarjetaAlarma` already uses for the same concept, applied here to
+    // BOTH the "programados" and "pasados" sections (this card backs both).
+    return Dismissible(
+      key: ValueKey('vacaciones-tarjeta-${rango.id}'),
+      direction: DismissDirection.horizontal,
+      background: const _FondoSwipeEliminarRango(
+        alignment: Alignment.centerLeft,
+      ),
+      secondaryBackground: const _FondoSwipeEliminarRango(
+        alignment: Alignment.centerRight,
+      ),
+      confirmDismiss: (_) => _confirmarEliminarRango(context, l10n),
+      onDismissed: (_) => estado.eliminarRangoVacaciones(rango.id),
+      child: DecoratedBox(
         decoration: BoxDecoration(
           color: t.listSurface,
           borderRadius: BorderRadius.circular(20),
           border: Border.all(color: Colors.white.withValues(alpha: 0.08)),
         ),
+        child: Material(
+          type: MaterialType.transparency,
+          child: InkWell(
+            borderRadius: BorderRadius.circular(20),
+            onTap: () => _abrirEditorVacaciones(context, rango: rango),
             child: Padding(
               padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 15),
               child: Column(
@@ -494,7 +615,9 @@ class _TarjetaRangoVacaciones extends StatelessWidget {
                       Expanded(
                         child: Text(
                           localizedVacationName(l10n, rango.nombre),
-                    style: Theme.of(context).textTheme.bodyMedium?.copyWith(
+                          style: Theme.of(
+                            context,
+                          ).textTheme.bodyMedium?.copyWith(
                             fontWeight: FontWeight.w600,
                             color: Theme.of(
                               context,
@@ -509,6 +632,9 @@ class _TarjetaRangoVacaciones extends StatelessWidget {
                 ],
               ),
             ),
+          ),
+        ),
+      ),
     );
   }
 }
@@ -609,11 +735,17 @@ class _BloqueFecha extends StatelessWidget {
   }
 }
 
-/// Add-range form. Moved verbatim from `pantalla_alarmas.dart` (WU8's
+/// Add/edit-range form. Moved verbatim from `pantalla_alarmas.dart` (WU8's
 /// `_PantallaVacacionesTemporal` used it as a placeholder push target; now
-/// this screen is the one real consumer). Behaviour unchanged.
+/// this screen is the one real consumer). Create behaviour unchanged; issue
+/// 1 (feedback-pruebas) adds the edit half via the optional [rango] — the
+/// SAME sheet, mirroring `pantalla_alarmas.dart`'s `_EditorAlarmaSheet`
+/// (`alarma == null` -> create, non-null -> edit; one shared save button
+/// either way).
 class _EditorVacacionesSheet extends StatefulWidget {
-  const _EditorVacacionesSheet();
+  const _EditorVacacionesSheet({this.rango});
+
+  final RangoVacaciones? rango;
 
   @override
   State<_EditorVacacionesSheet> createState() => _EditorVacacionesSheetState();
@@ -629,16 +761,29 @@ class _EditorVacacionesSheetState extends State<_EditorVacacionesSheet> {
   @override
   void initState() {
     super.initState();
+    final rango = widget.rango;
+    if (rango != null) {
+      _inicio = rango.inicioDia;
+      _fin = rango.finDia;
+    } else {
       final hoy = DateTime.now();
       _inicio = DateTime(hoy.year, hoy.month, hoy.day);
       _fin = _inicio.add(const Duration(days: 2));
     }
+  }
 
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();
+    final rango = widget.rango;
     _nombreController ??= TextEditingController(
-      text: AppLocalizations.of(context).vacationsDefaultName,
+      text:
+          rango != null
+              ? localizedVacationName(
+                AppLocalizations.of(context),
+                rango.nombre,
+              )
+              : AppLocalizations.of(context).vacationsDefaultName,
     );
   }
 
@@ -662,7 +807,9 @@ class _EditorVacacionesSheetState extends State<_EditorVacacionesSheet> {
           crossAxisAlignment: CrossAxisAlignment.start,
           children: [
             Text(
-              l10n.newVacationRangeTitle,
+              widget.rango != null
+                  ? l10n.editVacationRangeTitle
+                  : l10n.newVacationRangeTitle,
               style: Theme.of(
                 context,
               ).textTheme.titleLarge?.copyWith(fontWeight: FontWeight.w900),
@@ -709,10 +856,16 @@ class _EditorVacacionesSheetState extends State<_EditorVacacionesSheet> {
   Future<void> _elegirFecha({required bool esInicio}) async {
     final actual = esInicio ? _inicio : _fin;
     final hoy = DateTime.now();
+    final hoyDia = DateTime(hoy.year, hoy.month, hoy.day);
+    // Issue 1 (feedback-pruebas): editing a PAST range (reachable from the
+    // "Rangos pasados" section) must not force its dates into the future —
+    // `firstDate` only floors at today for a range that starts there or
+    // later; an already-past range keeps its own start as the floor.
+    final primerDiaPermitido = _inicio.isBefore(hoyDia) ? _inicio : hoyDia;
     final seleccion = await showDatePicker(
       context: context,
       initialDate: actual,
-      firstDate: DateTime(hoy.year, hoy.month, hoy.day),
+      firstDate: primerDiaPermitido,
       lastDate: hoy.add(const Duration(days: 1460)),
     );
     if (seleccion == null) return;
@@ -728,12 +881,26 @@ class _EditorVacacionesSheetState extends State<_EditorVacacionesSheet> {
 
   Future<void> _guardar() async {
     final estado = context.read<EstadoAlarmas>();
+    final nombre = _nombreController?.text.trim() ?? '';
+    final existente = widget.rango;
+    if (existente != null) {
+      await estado.editarRangoVacaciones(
+        RangoVacaciones(
+          id: existente.id,
+          nombre: nombre,
+          inicio: _inicio,
+          fin: _fin,
+          activo: existente.activo,
+        ),
+      );
+    } else {
       final rango = estado.servicio.crearRangoVacaciones(
         inicio: _inicio,
         fin: _fin,
-      nombre: _nombreController?.text.trim() ?? '',
+        nombre: nombre,
       );
       await estado.crearRangoVacaciones(rango);
+    }
     if (mounted) Navigator.pop(context);
   }
 }

lib/widgets/fila_emisora_plana.dart

@@ -8,6 +8,7 @@ import '../l10n/display_names.dart';
 import '../l10n/gen/app_localizations.dart';
 import '../modelos/emisora.dart';
 import '../tema/pluriwave_tokens.dart';
+import 'pluri_station_art_fallback.dart';
 
 /// Item 23 / audit 4.3 + 6.5 (t4:226-232, 302-306): a flat, background-less
 /// station row — square thumbnail, name, meta line, and a caller-supplied
@@ -234,10 +235,10 @@ class _ArteFilaEmisora extends StatelessWidget {
         imageUrl: emisora.favicon!,
         fit: BoxFit.cover,
         placeholder: (_, __) => _shimmer(theme),
-        errorWidget: (_, __, ___) => _iconoFallback(theme),
+        errorWidget: (_, __, ___) => _iconoFallback(),
       );
     }
-    return _iconoFallback(theme);
+    return _iconoFallback();
   }
 
   Widget _shimmer(ThemeData theme) => shimmer.Shimmer.fromColors(
@@ -246,12 +247,9 @@ class _ArteFilaEmisora extends StatelessWidget {
     child: Container(color: theme.colorScheme.surfaceContainerHighest),
   );
 
-  Widget _iconoFallback(ThemeData theme) => Container(
+  // Issue 6 (feedback-pruebas): was a flat `primaryContainer` square with a
-    color: theme.colorScheme.primaryContainer,
+  // bare `radio_rounded` icon — now the same shared fallback every other
-    child: Icon(
+  // surface uses.
-      Icons.radio_rounded,
+  Widget _iconoFallback() =>
-      size: 22,
+      PluriStationArtFallback(seed: emisora.uuid, iconSize: 22);
-      color: theme.colorScheme.onPrimaryContainer,
-    ),
-  );
 }

lib/widgets/mini_reproductor.dart

@@ -10,6 +10,7 @@ import '../modelos/emisora.dart';
 import '../pantallas/pantalla_reproductor.dart';
 import '../servicios/servicio_audio.dart';
 import '../tema/pluriwave_theme.dart';
+import 'pluri_station_art_fallback.dart';
 
 /// Barra inferior persistente con controles básicos de reproducción.
 /// Toca la barra para abrir PantallaReproductor completa.
@@ -318,9 +319,9 @@ class _ArteMiniReproductor extends StatelessWidget {
                   imageUrl: emisora.favicon!,
                   fit: BoxFit.cover,
                   placeholder: (_, __) => _shimmer(theme),
-                  errorWidget: (_, __, ___) => _iconoFallback(theme),
+                  errorWidget: (_, __, ___) => _iconoFallback(),
                 )
-                : _iconoFallback(theme),
+                : _iconoFallback(),
       ),
     );
   }
@@ -331,12 +332,9 @@ class _ArteMiniReproductor extends StatelessWidget {
     child: Container(color: theme.colorScheme.surfaceContainerHighest),
   );
 
-  Widget _iconoFallback(ThemeData theme) => Container(
+  // Issue 6 (feedback-pruebas): was a flat `primaryContainer` square with a
-    color: theme.colorScheme.primaryContainer,
+  // bare `radio_rounded` icon — now the same shared fallback every other
-    child: Icon(
+  // surface uses.
-      Icons.radio_rounded,
+  Widget _iconoFallback() =>
-      size: 20,
+      PluriStationArtFallback(seed: emisora.uuid, iconSize: 20);
-      color: theme.colorScheme.onPrimaryContainer,
-    ),
-  );
 }

lib/widgets/pluri_bottom_navigation.dart

@@ -192,7 +192,10 @@ class PluriBottomNavigation extends StatelessWidget {
 /// the balloon's opaque fill already covers the seam where the bar's own
 /// shadow would otherwise show through.
 List<BoxShadow> get _shellShadows => [
-  BoxShadow(color: Colors.white.withValues(alpha: 0.17), offset: const Offset(0, -1.5)),
+  BoxShadow(
+    color: Colors.white.withValues(alpha: 0.17),
+    offset: const Offset(0, -1.5),
+  ),
   BoxShadow(
     color: Colors.black.withValues(alpha: 0.5),
     offset: const Offset(0, 14),
@@ -214,6 +217,7 @@ class _PluriNavButton extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     final t = context.pluriTokens;
+    final motion = context.pluriMotion;
     return Semantics(
       button: true,
       selected: selected,
@@ -222,6 +226,11 @@ class _PluriNavButton extends StatelessWidget {
         type: MaterialType.transparency,
         child: InkWell(
           onTap: onTap,
+          // Without a shape the ink splash and hover highlight paint as a
+          // full-bleed RECTANGLE over the cell — a hard square sitting on
+          // top of the icon, which is what users reported. The whole bar is
+          // built on 999-radius pills; the splash has to follow.
+          borderRadius: BorderRadius.circular(999),
           child: Align(
             alignment: Alignment.bottomCenter,
             // t4/4a spec: the items row itself is 52px tall — this inner
@@ -238,13 +247,27 @@ class _PluriNavButton extends StatelessWidget {
                 // Flutter joins merged labels with `\n`, so screen readers
                 // would announce "Alarmas\nAlarmas" instead of "Alarmas".
                 child: ExcludeSemantics(
-                  child: Transform.translate(
+                  // t4/4a spec: active item lift `translateY(-15px)`. Every
-                    // t4/4a spec: active item lift `translateY(-15px)`.
+                  // property here used to change INSTANTLY while the balloon
-                    offset: Offset(0, selected ? -15 : 0),
+                  // behind it slid with AnimatedPositioned — the balloon
+                  // glided and its contents teleported, which read as a
+                  // broken transition. All four now share the balloon's own
+                  // duration and curve so the whole tab moves as one.
+                  child: AnimatedSlide(
+                    duration: motion.normal,
+                    curve: Curves.easeOutCubic,
+                    // Slide is expressed in fractions of the child's size;
+                    // the icon column is ~40 tall, so -15px is about -0.375.
+                    offset: Offset(0, selected ? -0.375 : 0),
+                    child: AnimatedSize(
+                      duration: motion.normal,
+                      curve: Curves.easeOutCubic,
                       child: Column(
                         mainAxisSize: MainAxisSize.min,
                         children: [
-                        Opacity(
+                          AnimatedOpacity(
+                            duration: motion.normal,
+                            curve: Curves.easeOutCubic,
                             // t4/4a spec: active icon full colour; inactive
                             // `rgba(242,247,250,.46)` — .46 applied here as
                             // uniform opacity dims both the fallback Icon
@@ -252,19 +275,25 @@ class _PluriNavButton extends StatelessWidget {
                             // PluriIconVariant.filled) and the real raster
                             // badge asset identically.
                             opacity: selected ? 1 : 0.46,
-                          child: PluriIcon(
+                            child: TweenAnimationBuilder<double>(
+                              duration: motion.normal,
+                              curve: Curves.easeOutCubic,
+                              tween: Tween<double>(end: selected ? 25 : 23),
+                              builder:
+                                  (context, size, _) => PluriIcon(
                                     glyph: item.glyph,
                                     variant: PluriIconVariant.filled,
-                            // t4/4a spec: icon `font-size:25px`/`23px`.
+                                    // t4/4a spec: `font-size:25px`/`23px`.
-                            size: selected ? 25 : 23,
+                                    size: size,
                                     color: selected ? t.electricMagenta : null,
-                            // Same ARB string the outer Semantics already
+                                    // Same ARB string the outer Semantics
-                            // uses — passing it explicitly skips
+                                    // already uses — passing it explicitly
-                            // PluriIcon's own AppLocalizations.of lookup
+                                    // skips PluriIcon's own
-                            // (excluded from the tree above regardless).
+                                    // AppLocalizations.of lookup.
                                     semanticLabel: item.label,
                                   ),
                             ),
+                          ),
                           if (selected) ...[
                             const SizedBox(height: 3),
                             Text(
@@ -294,6 +323,7 @@ class _PluriNavButton extends StatelessWidget {
             ),
           ),
         ),
+      ),
     );
   }
 }

lib/widgets/pluri_sleep_timer_sheet.dart

@@ -14,6 +14,13 @@ import 'pluri_layout.dart';
 void showPluriSleepTimerSheet(BuildContext context) {
   showModalBottomSheet(
     context: context,
+    // Issue 2 (feedback-pruebas): without this, the sheet is capped to a
+    // FRACTION of the screen height. That never mattered while the sheet
+    // always closed immediately after picking a duration (see the removed
+    // `Navigator.pop` calls below) -- now that the countdown view actually
+    // stays open, its title + description + headline-sized remaining-time
+    // text can overflow that capped height on a real phone width.
+    isScrollControlled: true,
     showDragHandle: true,
     builder:
         (ctx) => Consumer<EstadoRadio>(
@@ -79,12 +86,17 @@ void showPluriSleepTimerSheet(BuildContext context) {
                                     Duration(seconds: segundos),
                                   ),
                                 ),
-                                onPressed: () {
+                                // Issue 2 (feedback-pruebas): no longer pops
-                                  estado.iniciarTimerDuracion(
+                                // the sheet -- `estado.iniciarTimerDuracion`
+                                // notifies this `Consumer<EstadoRadio>`,
+                                // which swaps straight to the countdown
+                                // view above so the user actually SEES the
+                                // remaining time instead of the sheet just
+                                // closing with no feedback.
+                                onPressed:
+                                    () => estado.iniciarTimerDuracion(
                                       Duration(seconds: segundos),
-                                  );
+                                    ),
-                                  Navigator.pop(ctx);
-                                },
                               ),
                             ActionChip(
                               avatar: const Icon(Icons.tune_rounded, size: 18),
@@ -93,8 +105,9 @@ void showPluriSleepTimerSheet(BuildContext context) {
                                 final duracion =
                                     await _pedirDuracionPersonalizada(ctx);
                                 if (duracion == null || !ctx.mounted) return;
+                                // Issue 2: same as above -- stays open on
+                                // the countdown view rather than closing.
                                 estado.iniciarTimerDuracion(duracion);
-                                Navigator.pop(ctx);
                               },
                             ),
                           ],

lib/widgets/pluri_station_art_fallback.dart

@@ -0,0 +1,92 @@
+import 'package:flutter/material.dart';
+
+import '../l10n/gen/app_localizations.dart';
+import '../tema/pluriwave_theme.dart';
+import 'pluri_icon.dart';
+
+/// Shared station-art fallback (feedback-pruebas issue 6).
+///
+/// Before this widget existed, `TarjetaEmisora` had the only good fallback —
+/// a deterministic pick from 4 bundled illustrations (`_fallbackArtFor`),
+/// with a gradient + player glyph as a last resort if the asset itself ever
+/// fails to decode. Every OTHER surface that can render a station without
+/// artwork (`FilaEmisoraPlana`'s flat rows, the Escuchar hero, the "Tus
+/// emisoras" grid cell, the mini player, the full player) had its own,
+/// separate, much poorer copy: a flat `primaryContainer`-coloured square
+/// with a bare `radio_rounded` icon. This widget is the ONE shared
+/// implementation every one of those call sites now uses instead.
+///
+/// The selection formula is pinned EXACTLY as `TarjetaEmisora` originally
+/// had it (`seed.codeUnits.fold<int>(0, (a, b) => a + b) % 4`, asset order
+/// aurora/cosmic/pulse/nova) — `lib/servicios/navegacion_auto.dart` (a
+/// protected, empty-diff file) independently mirrors this SAME formula for
+/// Android Auto's own drawable-resource rotation
+/// (`test/servicios/navegacion_auto_test.dart`'s `indiceArtePara`/
+/// `artUriPara` tests assert it inline, not by importing this widget) —
+/// changing the order or the modulo here would silently desync the two
+/// without either test suite noticing until an actual device compared them
+/// side by side.
+class PluriStationArtFallback extends StatelessWidget {
+  const PluriStationArtFallback({
+    super.key,
+    required this.seed,
+    this.iconSize = 22,
+  });
+
+  /// Typically the station's `uuid` — the seed that deterministically picks
+  /// one of the 4 bundled arts below.
+  final String seed;
+
+  /// Size of the centred player glyph drawn over the art.
+  final double iconSize;
+
+  static const _arts = [
+    'assets/images/station_art_aurora.png',
+    'assets/images/station_art_cosmic.png',
+    'assets/images/station_art_pulse.png',
+    'assets/images/station_art_nova.png',
+  ];
+
+  /// Exposed so other call sites (and tests) can assert which asset a given
+  /// seed resolves to without needing to render the widget.
+  static String artFor(String seed) {
+    final index = seed.codeUnits.fold<int>(0, (a, b) => a + b) % _arts.length;
+    return _arts[index];
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Stack(
+      fit: StackFit.expand,
+      children: [
+        Image.asset(
+          artFor(seed),
+          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,
+                      ),
+                    ],
+                  ),
+                ),
+              ),
+        ),
+        Center(
+          child: PluriIcon(
+            glyph: PluriIconGlyph.player,
+            variant: PluriIconVariant.activeGlow,
+            size: iconSize,
+            semanticLabel: AppLocalizations.of(context).stationIconLabel,
+          ),
+        ),
+      ],
+    );
+  }
+}

lib/widgets/tarjeta_emisora.dart

@@ -10,6 +10,7 @@ import '../modelos/emisora.dart';
 import '../tema/pluriwave_theme.dart';
 import 'pluri_glass_surface.dart';
 import 'pluri_icon.dart';
+import 'pluri_station_art_fallback.dart';
 
 /// Tarjeta compacta para mostrar una emisora en listas y grids.
 /// Incluye botón de favorito visible en ambos modos.
@@ -302,51 +303,12 @@ class _TarjetaEmisoraState extends State<TarjetaEmisora> {
     );
   }
 
+  // Issue 6 (feedback-pruebas): extracted into the shared
+  // `PluriStationArtFallback` so every surface that can render a station
+  // without artwork shows the SAME fallback — see that widget's own doc
+  // comment for why the selection formula must never drift.
   Widget _iconoFallback(double size) {
-    final art = _fallbackArtFor(widget.emisora.uuid);
+    return PluriStationArtFallback(seed: widget.emisora.uuid, iconSize: size);
-    return Stack(
-      fit: StackFit.expand,
-      children: [
-        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,
-                      ),
-                    ],
-                  ),
-                ),
-              ),
-        ),
-        Center(
-          child: PluriIcon(
-            glyph: PluriIconGlyph.player,
-            variant: PluriIconVariant.activeGlow,
-            size: size,
-            semanticLabel: AppLocalizations.of(context).stationIconLabel,
-          ),
-        ),
-      ],
-    );
-  }
-
-  String _fallbackArtFor(String seed) {
-    const arts = [
-      'assets/images/station_art_aurora.png',
-      'assets/images/station_art_cosmic.png',
-      'assets/images/station_art_pulse.png',
-      'assets/images/station_art_nova.png',
-    ];
-    final index = seed.codeUnits.fold<int>(0, (a, b) => a + b) % arts.length;
-    return arts[index];
   }
 }
 

test/estado/estado_radio_test.dart

@@ -412,14 +412,10 @@ void main() {
     );
   });
 
-  group(
+  group('EstadoRadio — emisoras custom: lectura tolerante y guardia de '
-    'EstadoRadio — emisoras custom: lectura tolerante y guardia de '
+      'degradacion (persistence-resilience)', () {
-    'degradacion (persistence-resilience)',
+    test('entradas invalidas se omiten sin perder las validas ni fabricar '
-    () {
+        'uuid (D5 parcial)', () async {
-      test(
-        'entradas invalidas se omiten sin perder las validas ni fabricar '
-        'uuid (D5 parcial)',
-        () async {
       final archivo = await _crearArchivoCustomRaw(
         jsonEncode([
           {'uuid': 'custom-1', 'nombre': 'Valida Uno', 'url': 'http://a'},
@@ -446,13 +442,10 @@ void main() {
         'custom-1',
         'custom-2',
       });
-        },
+    });
-      );
 
-      test(
+    test('si resolver la ruta del archivo custom falla, la inicializacion '
-        'si resolver la ruta del archivo custom falla, la inicializacion '
+        'sobrevive y las cargas hermanas no se pierden (D5 IO-fail)', () async {
-        'sobrevive y las cargas hermanas no se pierden (D5 IO-fail)',
-        () async {
       final estado = EstadoRadio(
         audio: FakeServicioAudio(),
         favoritos: FakeServicioFavoritos(),
@@ -470,13 +463,10 @@ void main() {
       await estado.inicializar();
 
       expect(estado.emisorasCustom, isEmpty);
-        },
+    });
-      );
 
-      test(
+    test('JSON invalido al nivel superior pone en cuarentena el archivo '
-        'JSON invalido al nivel superior pone en cuarentena el archivo '
+        'original (D5 parse-fail)', () async {
-        'original (D5 parse-fail)',
-        () async {
       final archivo = await _crearArchivoCustomRaw('{bad');
       final estado = EstadoRadio(
         audio: FakeServicioAudio(),
@@ -494,13 +484,10 @@ void main() {
       expect(await sidecar.exists(), isTrue);
       expect(await sidecar.readAsString(), '{bad');
       expect(await archivo.exists(), isFalse);
-        },
+    });
-      );
 
-      test(
+    test('agregar tras la cuarentena escribe solo la nueva emisora y no '
-        'agregar tras la cuarentena escribe solo la nueva emisora y no '
+        'toca el sidecar (D5, autoridad de escritura restaurada)', () async {
-        'toca el sidecar (D5, autoridad de escritura restaurada)',
-        () async {
       final archivo = await _crearArchivoCustomRaw('{bad');
       final estado = EstadoRadio(
         audio: FakeServicioAudio(),
@@ -518,25 +505,20 @@ void main() {
       await estado.agregarEmisoraCustom(nueva);
 
       expect(estado.emisorasCustom.map((e) => e.uuid), ['nueva-1']);
-          final contenidoVivo =
+      final contenidoVivo = jsonDecode(await archivo.readAsString()) as List;
-              jsonDecode(await archivo.readAsString()) as List;
       expect(contenidoVivo, hasLength(1));
       expect((contenidoVivo.single as Map)['uuid'], 'nueva-1');
       expect(await sidecar.readAsString(), sidecarPrevio);
-        },
+    });
-      );
 
-      test(
+    test('fallo de IO al leer suprime la escritura y no se restaura con un '
-        'fallo de IO al leer suprime la escritura y no se restaura con un '
+        'alta explicita (D5 IO-fail)', () async {
-        'alta explicita (D5 IO-fail)',
-        () async {
       final espia = _ArchivoEspia(
         path: '/fake/emisoras_custom.json',
         exists: () async => true,
         readAsString:
-                () async => throw const FileSystemException(
+            () async =>
-                  'fallo simulado de lectura',
+                throw const FileSystemException('fallo simulado de lectura'),
-                ),
       );
       final estado = EstadoRadio(
         audio: FakeServicioAudio(),
@@ -554,18 +536,12 @@ void main() {
         emisoraDemo(uuid: 'nueva-x', nombre: 'X'),
       );
 
-          expect(
+      expect(estado.emisorasCustom.map((e) => e.uuid), contains('nueva-x'));
-            estado.emisorasCustom.map((e) => e.uuid),
-            contains('nueva-x'),
-          );
       expect(espia.writeAsStringCalls, 0);
-        },
+    });
-      );
 
-      test(
+    test('si ya existe un sidecar .corrupt no lo pisa, solo limpia el '
-        'si ya existe un sidecar .corrupt no lo pisa, solo limpia el '
+        'archivo vivo (D5)', () async {
-        'archivo vivo (D5)',
-        () async {
       final archivo = await _crearArchivoCustomRaw('{bad-nuevo');
       final sidecar = File('${archivo.path}.corrupt');
       await sidecar.writeAsString('contenido-previo-X');
@@ -584,19 +560,13 @@ void main() {
       expect(await sidecar.readAsString(), 'contenido-previo-X');
       expect(await archivo.exists(), isFalse);
       expect(estado.emisorasCustom, isEmpty);
-        },
+    });
-      );
+  });
-    },
-  );
 
-  group(
+  group('EstadoRadio — Android Auto: snapshot en vivo y reconciliación '
-    'EstadoRadio — Android Auto: snapshot en vivo y reconciliación '
+      '(android-auto-media)', () {
-    '(android-auto-media)',
+    test('empuja un snapshot actualizado a la fuente registrada cuando '
-    () {
+        'cambian favoritos/custom/populares', () async {
-      test(
-        'empuja un snapshot actualizado a la fuente registrada cuando '
-        'cambian favoritos/custom/populares',
-        () async {
       final fuenteAuto = _FuenteEmisorasAutoEspia();
       final archivo = await _crearArchivoCustom([
         emisoraDemo(uuid: 'custom-auto-1', nombre: 'Custom Auto'),
@@ -635,13 +605,10 @@ void main() {
         fuenteAuto.ultimoFavoritos?.map((e) => e.uuid),
         contains('fav-auto-1'),
       );
-        },
+    });
-      );
 
-      test(
+    test('reconcilia _emisoraSeleccionada cuando la selección viene desde '
-        'reconcilia _emisoraSeleccionada cuando la selección viene desde '
+        'el auto (no via reproducir())', () async {
-        'el auto (no via reproducir())',
-        () async {
       final audio = _AudioControlado();
       final estado = EstadoRadio(
         audio: audio,
@@ -661,10 +628,98 @@ void main() {
       await Future<void>.delayed(Duration.zero);
 
       expect(estado.emisoraActual?.uuid, desdeCoche.uuid);
-        },
+    });
+  });
+
+  group('EstadoRadio — última emisora reproducida (feedback-pruebas #4)', () {
+    test('la última emisora reproducida sobrevive a una nueva instancia '
+        '(reinicio) como emisoraActual DETENIDA -- no arranca audio, no '
+        'reproduce, sólo queda seleccionada', () async {
+      final emisora = emisoraDemo(uuid: 'last-1', nombre: 'Ultima FM');
+      final estadoUno = EstadoRadio(
+        audio: FakeServicioAudio(),
+        favoritos: FakeServicioFavoritos(),
+        radio: FakeServicioRadio(),
+        servicioEcualizador: FakeServicioEcualizador(),
+        resolverArchivoCustom: _archivoCustomVacio,
+        iniciarAutomaticamente: false,
       );
-    },
+      await estadoUno.inicializar();
+      await estadoUno.reproducir(emisora);
+      await estadoUno.detenerReproduccion();
+      // Lets the fire-and-forget persistence write settle before
+      // spinning up the "restart" instance.
+      await Future<void>.delayed(Duration.zero);
+
+      final audioDos = FakeServicioAudio();
+      final estadoDos = EstadoRadio(
+        audio: audioDos,
+        favoritos: FakeServicioFavoritos(),
+        radio: FakeServicioRadio(),
+        servicioEcualizador: FakeServicioEcualizador(),
+        resolverArchivoCustom: _archivoCustomVacio,
+        iniciarAutomaticamente: false,
       );
+
+      await estadoDos.inicializar();
+
+      expect(estadoDos.emisoraActual?.uuid, emisora.uuid);
+      expect(estadoDos.emisoraActual?.nombre, emisora.nombre);
+      expect(
+        audioDos.estaSonando,
+        isFalse,
+        reason: 'restoring the last station must never auto-start audio',
+      );
+    });
+
+    test('sin ninguna emisora previamente reproducida, emisoraActual sigue '
+        'siendo null tras inicializar (instalación nueva)', () async {
+      final estado = EstadoRadio(
+        audio: FakeServicioAudio(),
+        favoritos: FakeServicioFavoritos(),
+        radio: FakeServicioRadio(),
+        servicioEcualizador: FakeServicioEcualizador(),
+        resolverArchivoCustom: _archivoCustomVacio,
+        iniciarAutomaticamente: false,
+      );
+
+      await estado.inicializar();
+
+      expect(estado.emisoraActual, isNull);
+    });
+
+    test('una emisora seleccionada desde el auto (fuera de reproducir()) '
+        'también se recuerda para la próxima instancia', () async {
+      final audio = _AudioControlado();
+      final estadoUno = EstadoRadio(
+        audio: audio,
+        favoritos: FakeServicioFavoritos(),
+        radio: FakeServicioRadio(),
+        servicioEcualizador: FakeServicioEcualizador(),
+        resolverArchivoCustom: _archivoCustomVacio,
+        iniciarAutomaticamente: false,
+      );
+      await estadoUno.inicializar();
+      final desdeCoche = emisoraDemo(
+        uuid: 'auto-remembered',
+        nombre: 'Recordada desde el auto',
+      );
+      audio.seleccionarDesdeAuto(desdeCoche);
+      await Future<void>.delayed(Duration.zero);
+
+      final estadoDos = EstadoRadio(
+        audio: FakeServicioAudio(),
+        favoritos: FakeServicioFavoritos(),
+        radio: FakeServicioRadio(),
+        servicioEcualizador: FakeServicioEcualizador(),
+        resolverArchivoCustom: _archivoCustomVacio,
+        iniciarAutomaticamente: false,
+      );
+      await estadoDos.inicializar();
+
+      expect(estadoDos.emisoraActual?.uuid, desdeCoche.uuid);
+    });
+  });
 }
 
 /// Spy [FuenteEmisorasAuto] that only records the last snapshot pushed by

test/pantallas/ajustes/widgets/fila_ajuste_test.dart

@@ -98,6 +98,75 @@ void main() {
     },
   );
 
+  testWidgets(
+    'issue 5 (feedback-pruebas): a long trailing value does not squeeze the '
+    'title into wrapping across multiple lines -- the title stays on ONE '
+    'line, ellipsizing instead',
+    (tester) async {
+      const titulo = 'Emisora preferida';
+      const valorLargo = 'Radio Nacional Clasica Internacional FM Stereo HD';
+
+      await tester.pumpWidget(
+        host(
+          SizedBox(
+            width: 360,
+            child: FilaAjuste(
+              icon: Icons.radio_rounded,
+              titulo: titulo,
+              valor: valorLargo,
+              onTap: () {},
+            ),
+          ),
+        ),
+      );
+      await tester.pump();
+
+      expect(
+        tester.takeException(),
+        isNull,
+        reason: 'a squeezed row must not overflow either',
+      );
+
+      final tituloWidget = tester.widget<Text>(find.text(titulo));
+      expect(
+        tituloWidget.maxLines,
+        1,
+        reason: 'issue 5: the title must be constrained to a single line',
+      );
+      expect(tituloWidget.overflow, TextOverflow.ellipsis);
+
+      // Measured, not just `find.text` (a wrapped-but-still-present Text
+      // would still satisfy a bare `find.text` match, per the known
+      // "find.text can't catch visual wrap" trap) -- compare the rendered
+      // height against the SAME style/width rendered with a title that is
+      // guaranteed to fit on one line.
+      final alturaConValorLargo = tester.getSize(find.text(titulo)).height;
+
+      await tester.pumpWidget(
+        host(
+          SizedBox(
+            width: 360,
+            child: FilaAjuste(
+              icon: Icons.radio_rounded,
+              titulo: titulo,
+              onTap: () {},
+            ),
+          ),
+        ),
+      );
+      await tester.pump();
+      final alturaReferencia = tester.getSize(find.text(titulo)).height;
+
+      expect(
+        alturaConValorLargo,
+        closeTo(alturaReferencia, 1.0),
+        reason:
+            'the title rendered taller with a long value present -- it '
+            'wrapped instead of staying on a single ellipsized line',
+      );
+    },
+  );
+
   testWidgets(
     'visual fidelity (audit S10): GrupoAjustes insets its row divider by '
     '47px, not full-bleed (t4 line 516)',

test/pantallas/pantalla_buscar_test.dart

@@ -15,6 +15,7 @@ import 'package:pluriwave/servicios/servicio_audio.dart';
 import 'package:pluriwave/tema/pluriwave_theme.dart';
 import 'package:pluriwave/tema/pluriwave_tokens.dart';
 import 'package:pluriwave/widgets/fila_emisora_plana.dart';
+import 'package:pluriwave/widgets/pluri_layout.dart';
 import 'package:pluriwave/widgets/tarjeta_emisora.dart';
 import 'package:provider/provider.dart';
 import 'package:shared_preferences/shared_preferences.dart';
@@ -835,6 +836,78 @@ void main() {
       );
     });
 
+    testWidgets('issue 3 (feedback-pruebas): the results list uses row-tier '
+        'horizontal padding (12), not the card-tier constant this "flat, '
+        'background-less row" was documented as needing but never got', (
+      tester,
+    ) async {
+      _setLargeSurfaceSize(tester);
+      final estado = _crearEstado(
+        radio: FakeServicioRadio(
+          busqueda: [emisoraDemo(uuid: 'r-1', nombre: 'Radio Uno')],
+        ),
+      );
+      addTearDown(estado.dispose);
+      await tester.runAsync(estado.inicializar);
+
+      await tester.pumpWidget(_conProviders(estado, _testApp()));
+      await _pumpStableFrame(tester);
+      await tester.enterText(find.byType(SearchBar), 'radio');
+      await tester.testTextInput.receiveAction(TextInputAction.done);
+      await _pumpStableFrame(tester);
+
+      final fila = find.byType(FilaEmisoraPlana);
+      expect(
+        tester.getTopLeft(fila).dx,
+        PluriLayout.rowHorizontal,
+        reason:
+            'issue 3: background-less rows are row tier (12), not card '
+            'tier (16)',
+      );
+    });
+
+    testWidgets('issue 3 (feedback-pruebas): the results list is topped by the '
+        'standard section gap, not the horizontal-inset constant reused for '
+        'a vertical axis', (tester) async {
+      _setLargeSurfaceSize(tester);
+      final estado = _crearEstado(
+        radio: FakeServicioRadio(
+          busqueda: [emisoraDemo(uuid: 'r-1', nombre: 'Radio Uno')],
+        ),
+      );
+      addTearDown(estado.dispose);
+      await tester.runAsync(estado.inicializar);
+
+      await tester.pumpWidget(_conProviders(estado, _testApp()));
+      await _pumpStableFrame(tester);
+      await tester.enterText(find.byType(SearchBar), 'radio');
+      await tester.testTextInput.receiveAction(TextInputAction.done);
+      await _pumpStableFrame(tester);
+
+      // Reads the structural padding directly, rather than measuring a
+      // gap between two rendered widgets — the count row's own height is
+      // dictated by its taller PopupMenuButton (48dp touch target), so a
+      // position-based gap measurement against the count TEXT specifically
+      // would be thrown off by that unrelated vertical centring.
+      //
+      // Scoped to `shrinkWrap: true` — the OUTER page ListView is ALSO an
+      // ancestor of every `FilaEmisoraPlana`, but only `_resultados`'s OWN
+      // inner `ListView.builder` sets `shrinkWrap`.
+      final listaResultados = tester.widget<ListView>(
+        find.byWidgetPredicate((w) => w is ListView && w.shrinkWrap),
+      );
+      final padding = listaResultados.padding as EdgeInsets;
+
+      expect(
+        padding.top,
+        PluriLayout.sectionGap,
+        reason:
+            'issue 3: the results list must use the dedicated vertical '
+            'section gap above its first row, not the horizontal (16) '
+            'constant reused for a vertical axis',
+      );
+    });
+
     testWidgets(
       'tapping the favourite toggle on a search result adds it to favorites',
       (tester) async {

test/pantallas/pantalla_favoritos_test.dart

@@ -472,6 +472,24 @@ void main() {
         expect(find.text('Move to list'), findsOneWidget);
         expect(find.text('Remove from favorites'), findsOneWidget);
         expect(find.byType(PopupMenuItem<String>), findsNWidgets(2));
+
+        // Regression guard for a real user-reported bug: the button carried
+        // `constraints: BoxConstraints.tightFor(width: 38, height: 42)`,
+        // which sizes the POPUP MENU rather than the button. Every item was
+        // clipped to its first letter — users saw "M" and "E", not the
+        // labels. The three assertions above all PASSED throughout, because
+        // find.text matches a Text widget in the tree whether or not it is
+        // visually clipped. Only measuring the laid-out width catches it.
+        final anchoItem = tester.getSize(
+          find.byType(PopupMenuItem<String>).first,
+        );
+        expect(
+          anchoItem.width,
+          greaterThan(100),
+          reason:
+              'a menu item narrower than its label means the popup is being '
+              'constrained and the text is clipped',
+        );
       },
     );
 

test/pantallas/pantalla_inicio_test.dart

@@ -11,6 +11,7 @@ import 'package:pluriwave/l10n/gen/app_localizations.dart';
 import 'package:pluriwave/modelos/emisora.dart';
 import 'package:pluriwave/pantallas/pantalla_inicio.dart';
 import 'package:pluriwave/widgets/pluri_root_header.dart';
+import 'package:pluriwave/widgets/pluri_station_art_fallback.dart';
 import 'package:pluriwave/widgets/visualizador_audio.dart';
 import 'package:provider/provider.dart';
 import 'package:shared_preferences/shared_preferences.dart';
@@ -698,6 +699,76 @@ void main() {
       );
     },
   );
+
+  testWidgets('issue 6 (feedback-pruebas): the Escuchar hero shows the shared '
+      'PluriStationArtFallback for a station with no favicon, not a flat '
+      'coloured square', (tester) async {
+    _setLargeSurfaceSize(tester);
+    final favoritos = FakeServicioFavoritos();
+    final estado = EstadoRadio(
+      audio: FakeServicioAudio(),
+      favoritos: favoritos,
+      radio: FakeServicioRadio(),
+      servicioEcualizador: FakeServicioEcualizador(),
+      servicioGrabacion: FakeServicioGrabacionRadio(),
+      resolverArchivoCustom: _archivoCustomVacio,
+      iniciarAutomaticamente: false,
+    );
+    addTearDown(estado.dispose);
+    await tester.runAsync(estado.inicializar);
+    final sonando = emisoraDemo(uuid: 'sin-arte', nombre: 'Sin Arte');
+    await tester.runAsync(() => estado.reproducir(sonando));
+
+    await tester.pumpWidget(
+      _conProviders(estado, _testApp(const PantallaInicio())),
+    );
+    await _pumpBounded(tester);
+
+    expect(
+      find.byType(PluriStationArtFallback),
+      findsWidgets,
+      reason:
+          'issue 6: the hero must reach the shared fallback, not its own '
+          'flat primaryContainer square',
+    );
+  });
+
+  testWidgets(
+    'issue 6 (feedback-pruebas): a "Tus emisoras" grid cell shows the shared '
+    'PluriStationArtFallback for a favourite with no favicon',
+    (tester) async {
+      _setLargeSurfaceSize(tester);
+      final favoritos = FakeServicioFavoritos();
+      final estado = EstadoRadio(
+        audio: FakeServicioAudio(),
+        favoritos: favoritos,
+        radio: FakeServicioRadio(),
+        servicioEcualizador: FakeServicioEcualizador(),
+        servicioGrabacion: FakeServicioGrabacionRadio(),
+        resolverArchivoCustom: _archivoCustomVacio,
+        iniciarAutomaticamente: false,
+      );
+      addTearDown(estado.dispose);
+      await tester.runAsync(estado.inicializar);
+      await favoritos.agregar(
+        emisoraDemo(uuid: 'grid-sin-arte', nombre: 'Grid Sin Arte'),
+      );
+      await estado.cargarFavoritos();
+
+      await tester.pumpWidget(
+        _conProviders(estado, _testApp(const PantallaInicio())),
+      );
+      await _pumpStableFrame(tester);
+
+      expect(
+        find.byType(PluriStationArtFallback),
+        findsWidgets,
+        reason:
+            'issue 6: the grid cell must reach the shared fallback, not its '
+            'own flat primaryContainer square',
+      );
+    },
+  );
 }
 
 /// Mirrors the app.dart wiring: EstadoRadio owns the domain notifiers and

test/pantallas/pantalla_reproductor_test.dart

@@ -12,6 +12,7 @@ import 'package:pluriwave/pantallas/pantalla_reproductor.dart';
 import 'package:pluriwave/tema/pluriwave_tokens.dart';
 import 'package:pluriwave/widgets/ecualizador_widget.dart';
 import 'package:pluriwave/widgets/pluri_glass_surface.dart';
+import 'package:pluriwave/widgets/pluri_station_art_fallback.dart';
 import 'package:pluriwave/widgets/visualizador_audio.dart';
 import 'package:provider/provider.dart';
 import 'package:shared_preferences/shared_preferences.dart';
@@ -704,4 +705,30 @@ void main() {
       },
     );
   });
+
+  group('issue 6 (feedback-pruebas): shared station-art fallback', () {
+    testWidgets(
+      'a station with no favicon shows the shared PluriStationArtFallback, '
+      'not a flat coloured square',
+      (tester) async {
+        // `emisora` (the file-level fixture) never sets a favicon.
+        final estado = crearEstado();
+        addTearDown(estado.dispose);
+
+        await montarPantalla(tester, estado);
+
+        final arte = find.byKey(const Key('player-hero-art'));
+        expect(
+          find.descendant(
+            of: arte,
+            matching: find.byType(PluriStationArtFallback),
+          ),
+          findsOneWidget,
+          reason:
+              'issue 6: the full player must reach the shared fallback, '
+              'not its own flat primaryContainer square',
+        );
+      },
+    );
+  });
 }

test/pantallas/pantalla_vacaciones_test.dart

@@ -445,4 +445,173 @@ void main() {
       },
     );
   });
+
+  group('issue 1 (feedback-pruebas): editar y eliminar rangos', () {
+    testWidgets(
+      'tocar la tarjeta de un rango programado abre el editor precargado '
+      'con su nombre y fechas',
+      (tester) async {
+        final estado = await _crearEstado(
+          vacaciones: [
+            RangoVacaciones(
+              id: 'f2',
+              nombre: 'Verano',
+              inicio: _hoyDia.add(const Duration(days: 20)),
+              fin: _hoyDia.add(const Duration(days: 25)),
+            ),
+          ],
+        );
+        addTearDown(estado.dispose);
+
+        await tester.pumpWidget(_buildScreen(estado));
+        await _pumpEstable(tester);
+        final l10n = AppLocalizations.of(
+          tester.element(find.byType(PantallaVacaciones)),
+        );
+
+        await tester.tap(find.byKey(const ValueKey('vacaciones-tarjeta-f2')));
+        await _pumpEstable(tester);
+
+        expect(find.text(l10n.editVacationRangeTitle), findsOneWidget);
+        // Scoped to the TextField specifically -- the original card's OWN
+        // "Verano" label is still (offstage, behind the modal) in the tree,
+        // so a bare `find.text('Verano')` would ambiguously match both.
+        expect(find.widgetWithText(TextField, 'Verano'), findsOneWidget);
+      },
+    );
+
+    testWidgets(
+      'guardar el editor abierto por tap actualiza el rango existente (no '
+      'crea uno nuevo)',
+      (tester) async {
+        final estado = await _crearEstado(
+          vacaciones: [
+            RangoVacaciones(
+              id: 'f2',
+              nombre: 'Verano',
+              inicio: _hoyDia.add(const Duration(days: 20)),
+              fin: _hoyDia.add(const Duration(days: 25)),
+            ),
+          ],
+        );
+        addTearDown(estado.dispose);
+
+        await tester.pumpWidget(_buildScreen(estado));
+        await _pumpEstable(tester);
+        final l10n = AppLocalizations.of(
+          tester.element(find.byType(PantallaVacaciones)),
+        );
+
+        await tester.tap(find.byKey(const ValueKey('vacaciones-tarjeta-f2')));
+        await _pumpEstable(tester);
+
+        await tester.enterText(find.byType(TextField), 'Verano renombrado');
+        final boton = tester.widget<FilledButton>(
+          find.widgetWithText(FilledButton, l10n.saveRangeAction),
+        );
+        boton.onPressed!();
+        await _pumpEstable(tester);
+
+        expect(estado.vacaciones, hasLength(1));
+        expect(estado.vacaciones.single.id, 'f2');
+        expect(estado.vacaciones.single.nombre, 'Verano renombrado');
+      },
+    );
+
+    testWidgets(
+      'deslizar la tarjeta de un rango pide confirmacion; cancelar la '
+      'conserva y confirmar la elimina',
+      (tester) async {
+        final estado = await _crearEstado(
+          vacaciones: [
+            RangoVacaciones(
+              id: 'f2',
+              nombre: 'Verano',
+              inicio: _hoyDia.add(const Duration(days: 20)),
+              fin: _hoyDia.add(const Duration(days: 25)),
+            ),
+          ],
+        );
+        addTearDown(estado.dispose);
+
+        await tester.pumpWidget(_buildScreen(estado));
+        await _pumpEstable(tester);
+        final l10n = AppLocalizations.of(
+          tester.element(find.byType(PantallaVacaciones)),
+        );
+
+        // Cancelar: el rango se conserva.
+        await tester.drag(
+          find.byKey(const ValueKey('vacaciones-tarjeta-f2')),
+          const Offset(-600, 0),
+        );
+        await _pumpEstable(tester);
+        expect(find.text(l10n.vacationDeleteConfirmTitle), findsOneWidget);
+        await tester.tap(find.text(l10n.cancelAction));
+        await _pumpEstable(tester);
+        expect(estado.vacaciones, hasLength(1));
+
+        // Confirmar: el rango se elimina.
+        await tester.drag(
+          find.byKey(const ValueKey('vacaciones-tarjeta-f2')),
+          const Offset(-600, 0),
+        );
+        await _pumpEstable(tester);
+        expect(find.text(l10n.vacationDeleteConfirmTitle), findsOneWidget);
+        await tester.tap(find.text(l10n.deleteAction));
+        await _pumpEstable(tester);
+
+        expect(estado.vacaciones, isEmpty);
+      },
+    );
+
+    testWidgets(
+      'el rango ACTIVO (mostrado en el hero) tambien se puede editar (tap) '
+      'y eliminar (swipe) -- un rango recien creado siempre esta activo y '
+      'nunca aparece en las listas programado/pasado',
+      (tester) async {
+        final estado = await _crearEstado(
+          vacaciones: [
+            RangoVacaciones(
+              id: 'v1',
+              nombre: 'Julio activo',
+              inicio: _hoyDia.subtract(const Duration(days: 3)),
+              fin: _hoyDia.add(const Duration(days: 5)),
+            ),
+          ],
+        );
+        addTearDown(estado.dispose);
+
+        await tester.pumpWidget(_buildScreen(estado));
+        await _pumpEstable(tester);
+        final l10n = AppLocalizations.of(
+          tester.element(find.byType(PantallaVacaciones)),
+        );
+
+        await tester.tap(find.byKey(const ValueKey('vacaciones-tarjeta-v1')));
+        await _pumpEstable(tester);
+        expect(find.text(l10n.editVacationRangeTitle), findsOneWidget);
+        // Scoped to the TextField specifically -- the hero's OWN "Julio
+        // activo" label is still (offstage, behind the modal) in the tree.
+        expect(find.widgetWithText(TextField, 'Julio activo'), findsOneWidget);
+        // Dismiss the editor sheet (no explicit close button -- same as the
+        // pre-existing "Anadir rango" sheet, dismissible via the standard
+        // modal-bottom-sheet Navigator.pop) before interacting with the
+        // list underneath it.
+        Navigator.of(tester.element(find.byType(PantallaVacaciones))).pop();
+        await _pumpEstable(tester);
+
+        await tester.drag(
+          find.byKey(const ValueKey('vacaciones-tarjeta-v1')),
+          const Offset(-600, 0),
+        );
+        await _pumpEstable(tester);
+        await tester.tap(find.text(l10n.deleteAction));
+        await _pumpEstable(tester);
+
+        expect(estado.vacaciones, isEmpty);
+        expect(find.text(l10n.vacationNoActiveRangeHint), findsOneWidget);
+      },
+    );
+  });
 }

test/widgets/fila_emisora_plana_test.dart

@@ -4,6 +4,7 @@ import 'package:pluriwave/estado/estado_radio.dart';
 import 'package:pluriwave/l10n/gen/app_localizations.dart';
 import 'package:pluriwave/tema/pluriwave_tokens.dart';
 import 'package:pluriwave/widgets/fila_emisora_plana.dart';
+import 'package:pluriwave/widgets/pluri_station_art_fallback.dart';
 import 'package:pluriwave/widgets/tarjeta_emisora.dart';
 import 'package:provider/provider.dart';
 
@@ -77,6 +78,32 @@ void main() {
     );
   });
 
+  testWidgets(
+    'issue 6 (feedback-pruebas): a station with no favicon shows the shared '
+    'PluriStationArtFallback, not a flat coloured square',
+    (tester) async {
+      final estado = _estado();
+      addTearDown(estado.dispose);
+      final emisora = emisoraDemo(uuid: 'sin-arte', nombre: 'Sin Arte');
+
+      await tester.pumpWidget(
+        _host(estado, FilaEmisoraPlana(emisora: emisora, meta: '')),
+      );
+      await tester.pump();
+
+      expect(
+        find.descendant(
+          of: find.byKey(const ValueKey('fila-emisora-plana-arte')),
+          matching: find.byType(PluriStationArtFallback),
+        ),
+        findsOneWidget,
+        reason:
+            'issue 6: the flat row must reach the shared fallback, not its '
+            'own flat primaryContainer square',
+      );
+    },
+  );
+
   testWidgets('omits the meta line entirely when empty (no stray gap)', (
     tester,
   ) async {

test/widgets/mini_reproductor_barra_test.dart

@@ -5,6 +5,7 @@ import 'package:pluriwave/l10n/gen/app_localizations.dart';
 import 'package:pluriwave/tema/pluriwave_theme.dart';
 import 'package:pluriwave/tema/pluriwave_tokens.dart';
 import 'package:pluriwave/widgets/mini_reproductor.dart';
+import 'package:pluriwave/widgets/pluri_station_art_fallback.dart';
 import 'package:pluriwave/widgets/visualizador_audio.dart';
 import 'package:provider/provider.dart';
 
@@ -75,6 +76,33 @@ void main() {
     },
   );
 
+  testWidgets(
+    'issue 6 (feedback-pruebas): a station with no favicon shows the shared '
+    'PluriStationArtFallback, not a flat coloured square',
+    (tester) async {
+      final estado = _estadoConEmisora();
+      addTearDown(estado.dispose);
+      await estado.reproducir(
+        emisoraDemo(uuid: 'sin-arte', nombre: 'Sin Arte'),
+      );
+
+      await tester.pumpWidget(_hostFor(estado));
+      await tester.pump();
+
+      final arte = find.byKey(const ValueKey('mini-reproductor-arte'));
+      expect(
+        find.descendant(
+          of: arte,
+          matching: find.byType(PluriStationArtFallback),
+        ),
+        findsOneWidget,
+        reason:
+            'issue 6: the mini player must reach the shared fallback, not '
+            'its own flat primaryContainer square',
+      );
+    },
+  );
+
   testWidgets(
     'is opaque -- no BackdropFilter -- unlike the former glass pill',
     (tester) async {

test/widgets/pluri_bottom_navigation_test.dart

@@ -96,13 +96,17 @@ void main() {
     );
     expect(inactiveIcon.color, isNull);
 
-    final dimmed = tester.widget<Opacity>(
+    // AnimatedOpacity, not a plain Opacity: the dim now transitions with the
+    // balloon instead of snapping. Users reported the bar's contents
+    // teleporting while the balloon slid — the lift, dim, icon size and
+    // label all animate together now.
+    final dimmed = tester.widget<AnimatedOpacity>(
       find.ancestor(
         of: find.descendant(
           of: find.byKey(PluriBottomNavigation.itemKey(1)),
           matching: find.byType(PluriIcon),
         ),
-        matching: find.byType(Opacity),
+        matching: find.byType(AnimatedOpacity),
       ),
     );
     expect(dimmed.opacity, closeTo(0.46, 0.001));

test/widgets/pluri_sleep_timer_sheet_test.dart

@@ -0,0 +1,184 @@
+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/pluri_sleep_timer_sheet.dart';
+import 'package:provider/provider.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import '../helpers/fakes.dart';
+import '../helpers/fakes_alarmas.dart';
+
+/// Issue 2 (feedback-pruebas): "Timer de sueño" opened from Escuchar (and
+/// every other root header) showed a bottom sheet with no visible
+/// countdown. `ServicioTimer.tiempoRestanteStream`/`tiempoRestante` already
+/// existed and this sheet already had a `StreamBuilder` countdown branch —
+/// but every preset/custom-duration action popped the sheet immediately
+/// after starting the timer, so the countdown never had a chance to render
+/// in the primary flow. Zero test coverage existed for this file before.
+EstadoRadio _estado() => EstadoRadio(
+  audio: FakeServicioAudio(),
+  favoritos: FakeServicioFavoritos(),
+  radio: FakeServicioRadio(),
+  servicioEcualizador: FakeServicioEcualizador(),
+  servicioGrabacion: FakeServicioGrabacionRadioInactiva(),
+  iniciarAutomaticamente: false,
+);
+
+Widget _host(EstadoRadio estado) {
+  return ChangeNotifierProvider<EstadoRadio>.value(
+    value: estado,
+    child: MaterialApp(
+      locale: const Locale('es'),
+      localizationsDelegates: AppLocalizations.localizationsDelegates,
+      supportedLocales: AppLocalizations.supportedLocales,
+      home: Scaffold(
+        body: Builder(
+          builder:
+              (context) => TextButton(
+                onPressed: () => showPluriSleepTimerSheet(context),
+                child: const Text('abrir'),
+              ),
+        ),
+      ),
+    ),
+  );
+}
+
+void main() {
+  setUp(() {
+    SharedPreferences.setMockInitialValues({});
+  });
+
+  // The default 800x600 test viewport is shorter than a typical phone —
+  // same fix `pantalla_reproductor_test.dart`/`pantalla_inicio_test.dart`
+  // already established for other bottom-sheet/full-bleed content.
+  void ajustarSuperficieRealista(WidgetTester tester) {
+    tester.view.physicalSize = const Size(390, 844);
+    tester.view.devicePixelRatio = 1.0;
+    addTearDown(tester.view.resetPhysicalSize);
+    addTearDown(tester.view.resetDevicePixelRatio);
+  }
+
+  testWidgets(
+    'selecting a preset keeps the sheet open and switches it to the live '
+    'remaining-time countdown, instead of closing with no feedback',
+    (tester) async {
+      ajustarSuperficieRealista(tester);
+      final estado = _estado();
+      addTearDown(estado.dispose);
+
+      await tester.pumpWidget(_host(estado));
+      await tester.tap(find.text('abrir'));
+      await tester.pumpAndSettle();
+
+      final l10n = AppLocalizations.of(tester.element(find.text('abrir')));
+
+      expect(estado.timer.activo, isFalse);
+      expect(find.byType(ActionChip), findsWidgets);
+
+      final chip = tester.widget<ActionChip>(
+        find.widgetWithText(ActionChip, l10n.durationMinutesOnly(5)),
+      );
+      chip.onPressed!();
+      await tester.pump();
+
+      expect(estado.timer.activo, isTrue);
+      expect(
+        find.byType(ActionChip),
+        findsNothing,
+        reason: 'issue 2: the picker is replaced by the countdown view',
+      );
+      expect(find.text(l10n.cancelTimer), findsOneWidget);
+      expect(
+        find.text(l10n.durationMinutesOnly(5)),
+        findsOneWidget,
+        reason: 'issue 2: the remaining time is now surfaced live',
+      );
+
+      // `ServicioTimer` starts a REAL periodic Timer -- `addTearDown`
+      // callbacks run too late to satisfy the "no pending timers" check
+      // (a well-known flutter_test ordering quirk), so it must be
+      // cancelled here, inside the test body, before it ends.
+      await estado.timer.cancelar();
+    },
+  );
+
+  testWidgets('reopening the sheet while a timer is already active shows the '
+      'countdown immediately, not the duration picker', (tester) async {
+    ajustarSuperficieRealista(tester);
+    final estado = _estado();
+    addTearDown(estado.dispose);
+    estado.iniciarTimerDuracion(const Duration(minutes: 10));
+
+    await tester.pumpWidget(_host(estado));
+    await tester.tap(find.text('abrir'));
+    await tester.pumpAndSettle();
+
+    final l10n = AppLocalizations.of(tester.element(find.text('abrir')));
+    expect(find.byType(ActionChip), findsNothing);
+    expect(find.text(l10n.cancelTimer), findsOneWidget);
+    expect(find.text(l10n.durationMinutesOnly(10)), findsOneWidget);
+
+    // See the comment in the previous test — cancel before the body ends.
+    await estado.timer.cancelar();
+  });
+
+  testWidgets(
+    'cancelling from the countdown view stops the timer and closes the '
+    'sheet',
+    (tester) async {
+      ajustarSuperficieRealista(tester);
+      final estado = _estado();
+      addTearDown(estado.dispose);
+      estado.iniciarTimerDuracion(const Duration(minutes: 10));
+
+      await tester.pumpWidget(_host(estado));
+      await tester.tap(find.text('abrir'));
+      await tester.pumpAndSettle();
+
+      final l10n = AppLocalizations.of(tester.element(find.text('abrir')));
+      final boton = tester.widget<FilledButton>(
+        find.widgetWithText(FilledButton, l10n.cancelTimer),
+      );
+      boton.onPressed!();
+      await tester.pumpAndSettle();
+
+      expect(estado.timer.activo, isFalse);
+      expect(find.text(l10n.cancelTimer), findsNothing);
+    },
+  );
+
+  testWidgets(
+    'starting a custom duration ALSO keeps the sheet open on the countdown '
+    'view, not just the presets',
+    (tester) async {
+      ajustarSuperficieRealista(tester);
+      final estado = _estado();
+      addTearDown(estado.dispose);
+
+      await tester.pumpWidget(_host(estado));
+      await tester.tap(find.text('abrir'));
+      await tester.pumpAndSettle();
+
+      final l10n = AppLocalizations.of(tester.element(find.text('abrir')));
+      await tester.tap(find.text(l10n.optionOther));
+      await tester.pumpAndSettle();
+
+      // Confirm the custom-duration sub-sheet directly (default prefilled
+      // value is already "15" minutes -- see _TimerPersonalizadoSheetState).
+      final confirmar = tester.widget<FilledButton>(
+        find.widgetWithText(FilledButton, l10n.startTimer),
+      );
+      confirmar.onPressed!();
+      await tester.pumpAndSettle();
+
+      expect(estado.timer.activo, isTrue);
+      expect(find.byType(ActionChip), findsNothing);
+      expect(find.text(l10n.cancelTimer), findsOneWidget);
+
+      // See the comment in the first test — cancel before the body ends.
+      await estado.timer.cancelar();
+    },
+  );
+}

test/widgets/pluri_station_art_fallback_test.dart

@@ -0,0 +1,86 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:pluriwave/l10n/gen/app_localizations.dart';
+import 'package:pluriwave/widgets/pluri_icon.dart';
+import 'package:pluriwave/widgets/pluri_station_art_fallback.dart';
+
+/// Issue 6 (feedback-pruebas): the shared station-art fallback extracted
+/// from `TarjetaEmisora`'s original `_fallbackArtFor`. The formula and asset
+/// order are pinned exactly — `navegacion_auto_test.dart`'s
+/// `indiceArtePara`/`artUriPara` tests mirror the SAME formula independently
+/// (protected file, empty diff vs main) and must keep agreeing with this
+/// widget without either suite importing the other.
+void main() {
+  Widget host(Widget child) {
+    return MaterialApp(
+      locale: const Locale('en'),
+      localizationsDelegates: AppLocalizations.localizationsDelegates,
+      supportedLocales: AppLocalizations.supportedLocales,
+      home: Scaffold(body: SizedBox(width: 60, height: 60, child: child)),
+    );
+  }
+
+  test('artFor reproduces the canonical aurora/cosmic/pulse/nova order '
+      '(same formula as navegacion_auto.dart\'s indiceArtePara)', () {
+    // Single-letter seeds whose codeUnit % 4 covers all 4 indices, mirroring
+    // navegacion_auto_test.dart's own fixture exactly: 'd'(100)->0 aurora,
+    // 'a'(97)->1 cosmic, 'b'(98)->2 pulse, 'c'(99)->3 nova.
+    expect(
+      PluriStationArtFallback.artFor('d'),
+      'assets/images/station_art_aurora.png',
+    );
+    expect(
+      PluriStationArtFallback.artFor('a'),
+      'assets/images/station_art_cosmic.png',
+    );
+    expect(
+      PluriStationArtFallback.artFor('b'),
+      'assets/images/station_art_pulse.png',
+    );
+    expect(
+      PluriStationArtFallback.artFor('c'),
+      'assets/images/station_art_nova.png',
+    );
+  });
+
+  test('artFor is deterministic for a given seed (same station always picks '
+      'the same art)', () {
+    const seed = 'uuid-1234-abcd-real-looking';
+    expect(
+      PluriStationArtFallback.artFor(seed),
+      PluriStationArtFallback.artFor(seed),
+    );
+  });
+
+  testWidgets(
+    'renders the deterministic station-art asset plus a centred player glyph',
+    (tester) async {
+      await tester.pumpWidget(
+        host(const PluriStationArtFallback(seed: 'd', iconSize: 22)),
+      );
+      await tester.pump();
+
+      // Scoped by asset-name prefix, not `find.byType(Image).first` — the
+      // player glyph (`PluriIcon`) ALSO renders via its own `Image.asset`
+      // internally, so a bare type match would be ambiguous.
+      final arte = tester
+          .widgetList<Image>(find.byType(Image))
+          .firstWhere(
+            (img) =>
+                img.image is AssetImage &&
+                (img.image as AssetImage).assetName.startsWith(
+                  'assets/images/station_art_',
+                ),
+          );
+      expect(
+        (arte.image as AssetImage).assetName,
+        'assets/images/station_art_aurora.png',
+      );
+
+      final icono = tester.widget<PluriIcon>(find.byType(PluriIcon));
+      expect(icono.glyph, PluriIconGlyph.player);
+      expect(icono.variant, PluriIconVariant.activeGlow);
+      expect(icono.size, 22);
+    },
+  );
+}

test/widgets/tarjeta_emisora_thumbnail_test.dart

@@ -2,6 +2,7 @@ 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/pluri_station_art_fallback.dart';
 import 'package:pluriwave/widgets/tarjeta_emisora.dart';
 import 'package:provider/provider.dart';
 import 'package:shared_preferences/shared_preferences.dart';
@@ -73,6 +74,24 @@ void main() {
     expect(tester.getSize(thumbnailClip), const Size(48, 48));
   });
 
+  testWidgets(
+    'issue 6 (feedback-pruebas): a station with no favicon renders via the '
+    'shared PluriStationArtFallback (extracted from this exact fallback)',
+    (tester) async {
+      await tester.pumpWidget(
+        host(
+          TarjetaEmisora(
+            emisora: emisoraDemo(uuid: 'sin-arte', nombre: 'Sin Arte'),
+            esCompacta: true,
+          ),
+        ),
+      );
+      await tester.pump();
+
+      expect(find.byType(PluriStationArtFallback), findsOneWidget);
+    },
+  );
+
   testWidgets('esCompacta shimmer placeholder is a square block, not a '
       'circle', (tester) async {
     await tester.pumpWidget(