Munça da UI de inicio | escovagem semanal adicionada | quantidade de videos assistidos | todos os videos na nuvem | possibilidade de continuar o video de onde parou

lib/brushing_prefs.dart

@@ -0,0 +1,84 @@
+import 'package:shared_preferences/shared_preferences.dart';
+
+/// Registo local (por criança) de escovagens e da meta semanal.
+/// Segue o mesmo padrão de [QuizPrefs]: chaves com sufixo `_scopeId`,
+/// guardadas via [SharedPreferences], sem qualquer chamada ao Supabase.
+///
+/// Cada escovagem é guardada com a hora exata (não só a data), para permitir
+/// até [maxPerDay] registos por dia — a criança pode escovar os dentes de
+/// manhã, à tarde e à noite, a qualquer hora.
+class BrushingPrefs {
+  static const String _kGoalKey = 'brushing_weekly_goal';
+  static const String _kDatesKey = 'brushing_dates';
+  static const int maxPerDay = 3;
+  static const int defaultWeeklyGoal = maxPerDay * 7;
+
+  static String _key(String base, String scopeId) => '${base}_$scopeId';
+
+  static Future<List<DateTime>> _getEntries(String scopeId) async {
+    final prefs = await SharedPreferences.getInstance();
+    final raw = prefs.getStringList(_key(_kDatesKey, scopeId)) ?? const [];
+    return raw.map(DateTime.tryParse).whereType<DateTime>().toList();
+  }
+
+  static Future<int> getWeeklyGoal(String scopeId) async {
+    final prefs = await SharedPreferences.getInstance();
+    return prefs.getInt(_key(_kGoalKey, scopeId)) ?? defaultWeeklyGoal;
+  }
+
+  static Future<void> setWeeklyGoal(String scopeId, int goal) async {
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.setInt(_key(_kGoalKey, scopeId), goal);
+  }
+
+  static Future<int> getTodayCount(String scopeId) async {
+    final entries = await _getEntries(scopeId);
+    final now = DateTime.now();
+    return entries
+        .where(
+          (d) =>
+              d.year == now.year && d.month == now.month && d.day == now.day,
+        )
+        .length;
+  }
+
+  static Future<bool> canLogMore(String scopeId) async {
+    return (await getTodayCount(scopeId)) < maxPerDay;
+  }
+
+  /// Regista uma escovagem agora — não faz nada se o limite diário já foi
+  /// atingido (chamador deve verificar [canLogMore] antes, se quiser avisar
+  /// o utilizador).
+  static Future<void> logToday(String scopeId) async {
+    if (!(await canLogMore(scopeId))) return;
+    final prefs = await SharedPreferences.getInstance();
+    final key = _key(_kDatesKey, scopeId);
+    final list = prefs.getStringList(key) ?? <String>[];
+    list.add(DateTime.now().toIso8601String());
+    await prefs.setStringList(key, list);
+  }
+
+  /// Já atingiu o limite diário de [maxPerDay] escovagens hoje?
+  static Future<bool> hasReachedDailyLimit(String scopeId) async {
+    return (await getTodayCount(scopeId)) >= maxPerDay;
+  }
+
+  /// Conta quantas escovagens foram registadas na semana atual
+  /// (segunda-feira a domingo).
+  static Future<int> getWeekCount(String scopeId) async {
+    final entries = await _getEntries(scopeId);
+
+    final now = DateTime.now();
+    final monday = DateTime(
+      now.year,
+      now.month,
+      now.day,
+    ).subtract(Duration(days: now.weekday - 1));
+
+    return entries
+        .where(
+          (d) => !DateTime(d.year, d.month, d.day).isBefore(monday),
+        )
+        .length;
+  }
+}

lib/quiz/quiz1.dart

@@ -14,6 +14,8 @@ class Quiz1Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 1/25',
+      category: 'Avaliação facial',
+      categoryIcon: Icons.face_rounded,
       question: 'O rosto do seu filho/a se parece com o desta imagem?',
       questionImagePaths: const ['assets/mockup_images/2.jpeg'],
       suggestedYoutubeId: '', // TODO: colar o ID do YouTube do Episódio 1
@@ -53,6 +55,8 @@ class Quiz2Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 2/25',
+      category: 'Avaliação facial',
+      categoryIcon: Icons.sentiment_neutral_rounded,
       question:
           'A boca do seu filho/a fica habitualmente na posição desta imagem (entreaberta)?',
       questionImagePaths: const ['assets/mockup_images/4.jpeg'],
@@ -93,6 +97,8 @@ class Quiz3Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 3/25',
+      category: 'Avaliação facial',
+      categoryIcon: Icons.visibility_rounded,
       question: 'O seu filho/a tem olheiras semelhantes às desta imagem?',
       questionImagePaths: const ['assets/mockup_images/8.jpeg'],
       suggestedYoutubeId: '', // TODO: colar o ID do YouTube do Episódio 3
@@ -132,6 +138,8 @@ class Quiz4Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 4/25',
+      category: 'Avaliação facial',
+      categoryIcon: Icons.face_rounded,
       question:
           'Com a boca fechada, o queixo do seu filho/a se parece com o desta imagem?',
       questionImagePaths: const ['assets/mockup_images/6.jpeg'],
@@ -172,6 +180,10 @@ class Quiz5Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 5/25',
+      category: 'Contagem de dentes',
+      categoryIcon: Icons.numbers_rounded,
+      fallbackIcon: Icons.numbers_rounded,
+      fallbackColor: const Color(0xFF2F9E94),
       question: 'Quantos dentes tem o seu filho/a em cima na boca?',
       answers: const [],
       currentScore: currentScore,
@@ -195,6 +207,10 @@ class Quiz6Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 6/25',
+      category: 'Contagem de dentes',
+      categoryIcon: Icons.numbers_rounded,
+      fallbackIcon: Icons.numbers_rounded,
+      fallbackColor: const Color(0xFF2F9E94),
       question: 'Quantos dentes tem o seu filho/a em baixo na boca?',
       answers: const [],
       currentScore: currentScore,
@@ -218,6 +234,8 @@ class Quiz7Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 7/25',
+      category: 'Avaliação facial',
+      categoryIcon: Icons.sentiment_neutral_rounded,
       question: 'A boca do seu filho/a se parece com a desta imagem?',
       questionImagePaths: const ['assets/mockup_images/14.jpeg'],
       suggestedYoutubeId: '', // TODO: colar o ID do YouTube do Episódio 5
@@ -257,6 +275,8 @@ class Quiz8Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 8/25',
+      category: 'Avaliação facial',
+      categoryIcon: Icons.record_voice_over_rounded,
       question:
           'O frénulo (freio) da língua do seu filho/a se parece com o desta imagem?',
       questionImagePaths: const ['assets/mockup_images/17.png'],
@@ -297,6 +317,10 @@ class Quiz9Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 9/25',
+      category: 'Saúde respiratória',
+      categoryIcon: Icons.medical_information_rounded,
+      fallbackIcon: Icons.medical_information_rounded,
+      fallbackColor: const Color(0xFFFF55A7),
       question: 'O seu filho/a tem problemas respiratórios diagnosticados?',
       answers: const [
         QuizAnswer(
@@ -311,6 +335,12 @@ class Quiz9Screen extends StatelessWidget {
           weight: 1,
           value: 'nao',
         ),
+        QuizAnswer(
+          title: 'Não sei',
+          description: 'Não tenho a certeza',
+          weight: 1,
+          value: 'nao_sei',
+        ),
       ],
       currentScore: currentScore,
       nextRoute: (context, nextScore) => MaterialPageRoute<void>(
@@ -333,6 +363,10 @@ class Quiz10Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 10/25',
+      category: 'Respiração',
+      categoryIcon: Icons.air_rounded,
+      fallbackIcon: Icons.air_rounded,
+      fallbackColor: const Color(0xFF2F9E94),
       question: 'O seu filho/a respira habitualmente pela boca?',
       answers: const [
         QuizAnswer(
@@ -347,6 +381,12 @@ class Quiz10Screen extends StatelessWidget {
           weight: 1,
           value: 'nao',
         ),
+        QuizAnswer(
+          title: 'Não sei',
+          description: 'Não tenho a certeza',
+          weight: 1,
+          value: 'nao_sei',
+        ),
       ],
       currentScore: currentScore,
       nextRoute: (context, nextScore) => MaterialPageRoute<void>(
@@ -369,6 +409,10 @@ class Quiz11Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 11/25',
+      category: 'Sono',
+      categoryIcon: Icons.bedtime_rounded,
+      fallbackIcon: Icons.bedtime_rounded,
+      fallbackColor: const Color(0xFF8E7CC3),
       question: 'O seu filho/a ressona habitualmente durante a noite?',
       answers: const [
         QuizAnswer(
@@ -383,6 +427,12 @@ class Quiz11Screen extends StatelessWidget {
           weight: 1,
           value: 'nao',
         ),
+        QuizAnswer(
+          title: 'Não sei',
+          description: 'Não tenho a certeza',
+          weight: 1,
+          value: 'nao_sei',
+        ),
       ],
       currentScore: currentScore,
       nextRoute: (context, nextScore) => MaterialPageRoute<void>(
@@ -405,6 +455,10 @@ class Quiz12Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 12/25',
+      category: 'Respiração',
+      categoryIcon: Icons.sick_rounded,
+      fallbackIcon: Icons.sick_rounded,
+      fallbackColor: const Color(0xFFFF55A7),
       question: 'O seu filho/a sente habitualmente o nariz "tapado"?',
       answers: const [
         QuizAnswer(
@@ -419,6 +473,12 @@ class Quiz12Screen extends StatelessWidget {
           weight: 1,
           value: 'nao',
         ),
+        QuizAnswer(
+          title: 'Não sei',
+          description: 'Não tenho a certeza',
+          weight: 1,
+          value: 'nao_sei',
+        ),
       ],
       currentScore: currentScore,
       nextRoute: (context, nextScore) => MaterialPageRoute<void>(
@@ -441,6 +501,10 @@ class Quiz13Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 13/25',
+      category: 'Sono',
+      categoryIcon: Icons.nights_stay_rounded,
+      fallbackIcon: Icons.nights_stay_rounded,
+      fallbackColor: const Color(0xFF8E7CC3),
       question:
           'Durante o sono, o seu filho/a tem habitualmente interrupções da respiração?',
       answers: const [
@@ -457,6 +521,12 @@ class Quiz13Screen extends StatelessWidget {
           weight: 1,
           value: 'nao',
         ),
+        QuizAnswer(
+          title: 'Não sei',
+          description: 'Não tenho a certeza',
+          weight: 1,
+          value: 'nao_sei',
+        ),
       ],
       currentScore: currentScore,
       nextRoute: (context, nextScore) => MaterialPageRoute<void>(
@@ -479,6 +549,10 @@ class Quiz14Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 14/25',
+      category: 'Hábitos noturnos',
+      categoryIcon: Icons.nights_stay_rounded,
+      fallbackIcon: Icons.nights_stay_rounded,
+      fallbackColor: const Color(0xFF2F9E94),
       question: 'O seu filho/a range os dentes com frequência?',
       answers: const [
         QuizAnswer(
@@ -493,6 +567,12 @@ class Quiz14Screen extends StatelessWidget {
           weight: 1,
           value: 'nao',
         ),
+        QuizAnswer(
+          title: 'Não sei',
+          description: 'Não tenho a certeza',
+          weight: 1,
+          value: 'nao_sei',
+        ),
       ],
       currentScore: currentScore,
       nextRoute: (context, nextScore) => MaterialPageRoute<void>(
@@ -515,6 +595,10 @@ class Quiz15Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 15/25',
+      category: 'Saúde geral',
+      categoryIcon: Icons.local_florist_rounded,
+      fallbackIcon: Icons.local_florist_rounded,
+      fallbackColor: const Color(0xFFFF55A7),
       question: 'O seu filho/a habitualmente tem alergias sazonais?',
       answers: const [
         QuizAnswer(
@@ -529,6 +613,12 @@ class Quiz15Screen extends StatelessWidget {
           weight: 1,
           value: 'nao',
         ),
+        QuizAnswer(
+          title: 'Não sei',
+          description: 'Não tenho a certeza',
+          weight: 1,
+          value: 'nao_sei',
+        ),
       ],
       currentScore: currentScore,
       nextRoute: (context, nextScore) => MaterialPageRoute<void>(
@@ -551,6 +641,10 @@ class Quiz16Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 16/25',
+      category: 'Sono',
+      categoryIcon: Icons.water_drop_rounded,
+      fallbackIcon: Icons.water_drop_rounded,
+      fallbackColor: const Color(0xFF8E7CC3),
       question: 'O seu filho/a acorda com saliva seca na cara ou na almofada?',
       answers: const [
         QuizAnswer(
@@ -565,6 +659,12 @@ class Quiz16Screen extends StatelessWidget {
           weight: 1,
           value: 'nao',
         ),
+        QuizAnswer(
+          title: 'Não sei',
+          description: 'Não tenho a certeza',
+          weight: 1,
+          value: 'nao_sei',
+        ),
       ],
       currentScore: currentScore,
       nextRoute: (context, nextScore) => MaterialPageRoute<void>(
@@ -587,6 +687,10 @@ class Quiz17Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 17/25',
+      category: 'Saúde geral',
+      categoryIcon: Icons.hearing_rounded,
+      fallbackIcon: Icons.hearing_rounded,
+      fallbackColor: const Color(0xFF2F9E94),
       question: 'O seu filho/a teve ou costuma ter com frequência otites?',
       answers: const [
         QuizAnswer(
@@ -601,6 +705,12 @@ class Quiz17Screen extends StatelessWidget {
           weight: 1,
           value: 'nao',
         ),
+        QuizAnswer(
+          title: 'Não sei',
+          description: 'Não tenho a certeza',
+          weight: 1,
+          value: 'nao_sei',
+        ),
       ],
       currentScore: currentScore,
       nextRoute: (context, nextScore) => MaterialPageRoute<void>(
@@ -623,6 +733,10 @@ class Quiz18Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 18/25',
+      category: 'Saúde geral',
+      categoryIcon: Icons.healing_rounded,
+      fallbackIcon: Icons.healing_rounded,
+      fallbackColor: const Color(0xFFFF55A7),
       question: 'O seu filho/a teve ou costuma ter com frequência amigdalites?',
       answers: const [
         QuizAnswer(
@@ -637,6 +751,12 @@ class Quiz18Screen extends StatelessWidget {
           weight: 1,
           value: 'nao',
         ),
+        QuizAnswer(
+          title: 'Não sei',
+          description: 'Não tenho a certeza',
+          weight: 1,
+          value: 'nao_sei',
+        ),
       ],
       currentScore: currentScore,
       nextRoute: (context, nextScore) => MaterialPageRoute<void>(
@@ -659,6 +779,10 @@ class Quiz19Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 19/25',
+      category: 'Saúde respiratória',
+      categoryIcon: Icons.air_rounded,
+      fallbackIcon: Icons.air_rounded,
+      fallbackColor: const Color(0xFF2F9E94),
       question:
           'O seu filho/a teve ou costuma ter com frequência bronquiolites?',
       answers: const [
@@ -674,6 +798,12 @@ class Quiz19Screen extends StatelessWidget {
           weight: 1,
           value: 'nao',
         ),
+        QuizAnswer(
+          title: 'Não sei',
+          description: 'Não tenho a certeza',
+          weight: 1,
+          value: 'nao_sei',
+        ),
       ],
       currentScore: currentScore,
       nextRoute: (context, nextScore) => MaterialPageRoute<void>(
@@ -696,6 +826,10 @@ class Quiz20Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 20/25',
+      category: 'Hábitos alimentares',
+      categoryIcon: Icons.restaurant_rounded,
+      fallbackIcon: Icons.restaurant_rounded,
+      fallbackColor: const Color(0xFFFF55A7),
       question: 'O seu filho/a apresenta dificuldades a mastigar?',
       answers: const [
         QuizAnswer(
@@ -710,6 +844,12 @@ class Quiz20Screen extends StatelessWidget {
           weight: 1,
           value: 'nao',
         ),
+        QuizAnswer(
+          title: 'Não sei',
+          description: 'Não tenho a certeza',
+          weight: 1,
+          value: 'nao_sei',
+        ),
       ],
       currentScore: currentScore,
       nextRoute: (context, nextScore) => MaterialPageRoute<void>(
@@ -732,6 +872,10 @@ class Quiz21Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 21/25',
+      category: 'Hábitos alimentares',
+      categoryIcon: Icons.schedule_rounded,
+      fallbackIcon: Icons.schedule_rounded,
+      fallbackColor: const Color(0xFF2F9E94),
       question: 'O seu filho/a habitualmente é lento a comer?',
       answers: const [
         QuizAnswer(
@@ -746,6 +890,12 @@ class Quiz21Screen extends StatelessWidget {
           weight: 1,
           value: 'nao',
         ),
+        QuizAnswer(
+          title: 'Não sei',
+          description: 'Não tenho a certeza',
+          weight: 1,
+          value: 'nao_sei',
+        ),
       ],
       currentScore: currentScore,
       nextRoute: (context, nextScore) => MaterialPageRoute<void>(
@@ -768,6 +918,10 @@ class Quiz22Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 22/25',
+      category: 'Hábitos alimentares',
+      categoryIcon: Icons.restaurant_menu_rounded,
+      fallbackIcon: Icons.restaurant_menu_rounded,
+      fallbackColor: const Color(0xFF8E7CC3),
       question: 'O seu filho/a habitualmente prefere comer alimentos moles?',
       answers: const [
         QuizAnswer(
@@ -782,6 +936,12 @@ class Quiz22Screen extends StatelessWidget {
           weight: 1,
           value: 'nao',
         ),
+        QuizAnswer(
+          title: 'Não sei',
+          description: 'Não tenho a certeza',
+          weight: 1,
+          value: 'nao_sei',
+        ),
       ],
       currentScore: currentScore,
       nextRoute: (context, nextScore) => MaterialPageRoute<void>(
@@ -804,6 +964,10 @@ class Quiz23Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 23/25',
+      category: 'Hábitos alimentares',
+      categoryIcon: Icons.local_drink_rounded,
+      fallbackIcon: Icons.local_drink_rounded,
+      fallbackColor: const Color(0xFFFF55A7),
       question: 'Em bebé apenas foi alimentado por biberão?',
       answers: const [
         QuizAnswer(
@@ -818,6 +982,12 @@ class Quiz23Screen extends StatelessWidget {
           weight: 1,
           value: 'nao',
         ),
+        QuizAnswer(
+          title: 'Não sei',
+          description: 'Não tenho a certeza',
+          weight: 1,
+          value: 'nao_sei',
+        ),
       ],
       currentScore: currentScore,
       nextRoute: (context, nextScore) => MaterialPageRoute<void>(
@@ -840,6 +1010,10 @@ class Quiz24Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 24/25',
+      category: 'Hábitos orais',
+      categoryIcon: Icons.child_care_rounded,
+      fallbackIcon: Icons.child_care_rounded,
+      fallbackColor: const Color(0xFF2F9E94),
       question: 'O seu filho/a usa ou usou chupeta com frequência?',
       answers: const [
         QuizAnswer(
@@ -854,6 +1028,12 @@ class Quiz24Screen extends StatelessWidget {
           weight: 1,
           value: 'nao',
         ),
+        QuizAnswer(
+          title: 'Não sei',
+          description: 'Não tenho a certeza',
+          weight: 1,
+          value: 'nao_sei',
+        ),
       ],
       currentScore: currentScore,
       nextRoute: (context, nextScore) => MaterialPageRoute<void>(
@@ -876,6 +1056,10 @@ class Quiz25Screen extends StatelessWidget {
   Widget build(BuildContext context) {
     return QuizQuestionScreen(
       title: 'Quiz 25/25',
+      category: 'Hábitos orais',
+      categoryIcon: Icons.back_hand_rounded,
+      fallbackIcon: Icons.back_hand_rounded,
+      fallbackColor: const Color(0xFF8E7CC3),
       question: 'O seu filho/a chucha ou já chuchou o dedo com frequência?',
       answers: const [
         QuizAnswer(
@@ -890,6 +1074,12 @@ class Quiz25Screen extends StatelessWidget {
           weight: 1,
           value: 'nao',
         ),
+        QuizAnswer(
+          title: 'Não sei',
+          description: 'Não tenho a certeza',
+          weight: 1,
+          value: 'nao_sei',
+        ),
       ],
       currentScore: currentScore,
       nextRoute: (context, nextScore) => MaterialPageRoute<void>(

lib/quiz/quiz_question_screen.dart

@@ -45,6 +45,10 @@ class QuizQuestionScreen extends StatefulWidget {
     this.suggestedVideoPath,
     this.suggestedYoutubeId,
     this.suggestedVideoTitle,
+    this.category,
+    this.categoryIcon,
+    this.fallbackIcon,
+    this.fallbackColor,
   });
 
   final String title;
@@ -61,6 +65,16 @@ class QuizQuestionScreen extends StatefulWidget {
   final String? suggestedYoutubeId;
   final String? suggestedVideoTitle;
 
+  /// Rótulo pequeno do tema da pergunta (ex.: "Avaliação facial"), mostrado
+  /// num badge acima da imagem/pergunta.
+  final String? category;
+  final IconData? categoryIcon;
+
+  /// Usados só quando [questionImagePaths] está vazio: em vez de o bloco de
+  /// imagem colapsar, mostra-se um bloco colorido com este ícone.
+  final IconData? fallbackIcon;
+  final Color? fallbackColor;
+
   @override
   State<QuizQuestionScreen> createState() => _QuizQuestionScreenState();
 }
@@ -74,8 +88,24 @@ class _QuizQuestionScreenState extends State<QuizQuestionScreen> {
   int? _selected;
   TextEditingController? _numberController;
   int? _numberValue;
+  bool _numberDontKnow = false;
   bool _navigating = false;
 
+  /// O título ainda chega como texto livre ("Quiz 3/25") em vez de números
+  /// separados — extraímos daqui em vez de acrescentar mais dois parâmetros
+  /// obrigatórios a cada uma das 25 telas de pergunta.
+  static final RegExp _progressPattern = RegExp(r'(\d+)\s*/\s*(\d+)');
+
+  int get _questionIndex {
+    final match = _progressPattern.firstMatch(widget.title);
+    return int.tryParse(match?.group(1) ?? '') ?? 1;
+  }
+
+  int get _totalQuestions {
+    final match = _progressPattern.firstMatch(widget.title);
+    return int.tryParse(match?.group(2) ?? '') ?? 1;
+  }
+
   @override
   void initState() {
     super.initState();
@@ -96,10 +126,11 @@ class _QuizQuestionScreenState extends State<QuizQuestionScreen> {
     bool canProceed = _selected != null && !_navigating;
     if (widget.answerType == QuizAnswerType.number) {
       canProceed =
-          _numberValue != null &&
+          !_navigating &&
-          _numberValue! >= 0 &&
+          (_numberDontKnow ||
-          _numberValue! <= _maxTeethCount &&
+              (_numberValue != null &&
-          !_navigating;
+                  _numberValue! >= 0 &&
+                  _numberValue! <= _maxTeethCount));
     }
 
     final bool hasSuggestedVideo =
@@ -146,49 +177,103 @@ class _QuizQuestionScreenState extends State<QuizQuestionScreen> {
             child: Column(
               crossAxisAlignment: CrossAxisAlignment.stretch,
               children: [
-                SizedBox(
+                Padding(
-                  height: 44,
+                  padding: const EdgeInsets.fromLTRB(16, 8, 16, 4),
-                  child: Stack(
+                  child: Row(
-                    alignment: Alignment.center,
                     children: [
-                      Text(
-                        widget.title,
-                        textAlign: TextAlign.center,
-                        style: TextStyle(
-                          color: Colors.black.withValues(alpha: 0.55),
-                          fontWeight: FontWeight.w800,
-                        ),
-                      ),
                       if (widget.showBackButton)
-                        Positioned(
+                        TapBounce(
-                          left: 4,
+                          scale: 0.9,
-                          child: TapBounce(
+                          child: Material(
-                            scale: 0.9,
+                            color: Colors.white.withValues(alpha: 0.85),
-                            child: Material(
+                            shape: const CircleBorder(),
-                              color: Colors.white.withValues(alpha: 0.85),
+                            elevation: 4,
-                              shape: const CircleBorder(),
+                            shadowColor: Colors.black.withValues(alpha: 0.15),
-                              elevation: 4,
+                            child: InkWell(
-                              shadowColor: Colors.black.withValues(
+                              customBorder: const CircleBorder(),
-                                alpha: 0.15,
+                              onTap: () => Navigator.of(context).maybePop(),
-                              ),
+                              child: const Padding(
-                              child: InkWell(
+                                padding: EdgeInsets.all(9),
-                                customBorder: const CircleBorder(),
+                                child: Icon(
-                                onTap: () => Navigator.of(context).maybePop(),
+                                  Icons.arrow_back_rounded,
-                                child: const Padding(
+                                  color: Color(0xFF2F9E94),
-                                  padding: EdgeInsets.all(10),
+                                  size: 20,
-                                  child: Icon(
-                                    Icons.arrow_back_rounded,
-                                    color: Color(0xFF2F9E94),
-                                    size: 22,
-                                  ),
                                 ),
                               ),
                             ),
                           ),
+                        )
+                      else
+                        const SizedBox(width: 38),
+                      const SizedBox(width: 12),
+                      Expanded(
+                        child: ClipRRect(
+                          borderRadius: BorderRadius.circular(999),
+                          child: LinearProgressIndicator(
+                            value: (_questionIndex / _totalQuestions).clamp(
+                              0.0,
+                              1.0,
+                            ),
+                            minHeight: 8,
+                            backgroundColor: const Color(
+                              0xFFFF55A7,
+                            ).withValues(alpha: 0.15),
+                            valueColor: const AlwaysStoppedAnimation<Color>(
+                              Color(0xFFFF55A7),
+                            ),
+                          ),
                         ),
+                      ),
+                      const SizedBox(width: 10),
+                      Text(
+                        '$_questionIndex/$_totalQuestions',
+                        style: TextStyle(
+                          color: Colors.black.withValues(alpha: 0.55),
+                          fontWeight: FontWeight.w800,
+                          fontSize: 13,
+                        ),
+                      ),
                     ],
                   ),
                 ),
+                if ((widget.category ?? '').isNotEmpty)
+                  Padding(
+                    padding: const EdgeInsets.fromLTRB(16, 8, 16, 0),
+                    child: Align(
+                      alignment: Alignment.centerLeft,
+                      child: Container(
+                        padding: const EdgeInsets.symmetric(
+                          horizontal: 12,
+                          vertical: 6,
+                        ),
+                        decoration: BoxDecoration(
+                          color: Colors.white.withValues(alpha: 0.75),
+                          borderRadius: BorderRadius.circular(999),
+                        ),
+                        child: Row(
+                          mainAxisSize: MainAxisSize.min,
+                          children: [
+                            if (widget.categoryIcon != null) ...[
+                              Icon(
+                                widget.categoryIcon,
+                                size: 15,
+                                color: const Color(0xFF2F9E94),
+                              ),
+                              const SizedBox(width: 6),
+                            ],
+                            Text(
+                              widget.category!,
+                              style: const TextStyle(
+                                fontWeight: FontWeight.w800,
+                                fontSize: 12,
+                                color: Color(0xFF2F9E94),
+                              ),
+                            ),
+                          ],
+                        ),
+                      ),
+                    ),
+                  ),
                 Expanded(
                   child: LayoutBuilder(
                     builder: (context, constraints) {
@@ -224,16 +309,21 @@ class _QuizQuestionScreenState extends State<QuizQuestionScreen> {
                                           crossAxisAlignment:
                                               CrossAxisAlignment.stretch,
                                           children: [
-                                            if (widget
+                                            const SizedBox(height: 6),
-                                                .questionImagePaths
+                                            widget.questionImagePaths.isNotEmpty
-                                                .isNotEmpty) ...[
+                                                ? _QuestionReferenceImages(
-                                              const SizedBox(height: 6),
+                                                    paths: widget
-                                              _QuestionReferenceImages(
+                                                        .questionImagePaths,
-                                                paths:
+                                                  )
-                                                    widget.questionImagePaths,
+                                                : _FallbackIconBlock(
-                                              ),
+                                                    icon:
-                                              const SizedBox(height: 10),
+                                                        widget.fallbackIcon ??
-                                            ],
+                                                        Icons.info_outline_rounded,
+                                                    color:
+                                                        widget.fallbackColor ??
+                                                        const Color(0xFF2F9E94),
+                                                  ),
+                                            const SizedBox(height: 10),
                                             if (hasSuggestedVideo) ...[
                                               TextButton.icon(
                                                 onPressed: () =>
@@ -324,15 +414,38 @@ class _QuizQuestionScreenState extends State<QuizQuestionScreen> {
                                                     delay: Duration(
                                                       milliseconds: 60 * i,
                                                     ),
-                                                    child: _QuizAnswerTile(
+                                                    child:
-                                                      answer:
+                                                        widget.answerType ==
-                                                          widget.answers[i],
+                                                                QuizAnswerType
-                                                      selected:
+                                                                    .yesNo &&
-                                                          _selected == i,
+                                                            widget
-                                                      onTap: () => setState(
+                                                                    .answers[i]
-                                                        () => _selected = i,
+                                                                    .imagePath ==
-                                                      ),
+                                                                null
-                                                    ),
+                                                        ? _QuizAnswerPill(
+                                                            answer: widget
+                                                                .answers[i],
+                                                            selected:
+                                                                _selected == i,
+                                                            onTap: () =>
+                                                                setState(
+                                                                  () =>
+                                                                      _selected =
+                                                                          i,
+                                                                ),
+                                                          )
+                                                        : _QuizAnswerTile(
+                                                            answer: widget
+                                                                .answers[i],
+                                                            selected:
+                                                                _selected == i,
+                                                            onTap: () =>
+                                                                setState(
+                                                                  () =>
+                                                                      _selected =
+                                                                          i,
+                                                                ),
+                                                          ),
                                                   ),
                                                 ],
                                               ],
@@ -357,7 +470,7 @@ class _QuizQuestionScreenState extends State<QuizQuestionScreen> {
                                                     FilledButton.styleFrom(
                                                       backgroundColor:
                                                           const Color(
-                                                            0xFF2F9E94,
+                                                            0xFFFF55A7,
                                                           ),
                                                       foregroundColor:
                                                           Colors.white,
@@ -426,8 +539,10 @@ class _QuizQuestionScreenState extends State<QuizQuestionScreen> {
                                                           nextScore =
                                                               widget
                                                                   .currentScore +
-                                                              (_numberValue ??
+                                                              (_numberDontKnow
-                                                                  0);
+                                                                  ? 0
+                                                                  : (_numberValue ??
+                                                                        0));
                                                         } else {
                                                           final picked = widget
                                                               .answers[_selected!];
@@ -474,44 +589,21 @@ class _QuizQuestionScreenState extends State<QuizQuestionScreen> {
                                               ),
                                             ),
                                           ),
-                                          const SizedBox(height: 10),
+                                          const SizedBox(height: 6),
-                                          TapBounce(
+                                          TextButton(
-                                            child: SizedBox(
+                                            style: TextButton.styleFrom(
-                                              width: size.width * 0.62,
+                                              foregroundColor: const Color(
-                                              height: 42,
+                                                0xFF2F9E94,
-                                              child: OutlinedButton(
-                                                style:
-                                                    OutlinedButton.styleFrom(
-                                                      foregroundColor:
-                                                          const Color(
-                                                            0xFF2F9E94,
-                                                          ),
-                                                      side: const BorderSide(
-                                                        color: Color(
-                                                          0xFF2F9E94,
-                                                        ),
-                                                        width: 1.3,
-                                                      ),
-                                                      shape:
-                                                          const StadiumBorder(),
-                                                      textStyle:
-                                                          const TextStyle(
-                                                            fontWeight:
-                                                                FontWeight
-                                                                    .w900,
-                                                          ),
-                                                    ),
-                                                onPressed: () =>
-                                                    Navigator.of(
-                                                      context,
-                                                    ).popUntil(
-                                                      (route) =>
-                                                          route.isFirst,
-                                                    ),
-                                                child: const Text(
-                                                  'Voltar para homepage',
-                                                ),
                                               ),
+                                              textStyle: const TextStyle(
+                                                fontWeight: FontWeight.w800,
+                                              ),
+                                            ),
+                                            onPressed: () => Navigator.of(
+                                              context,
+                                            ).popUntil((route) => route.isFirst),
+                                            child: const Text(
+                                              'Voltar para homepage',
                                             ),
                                           ),
                                         ],
@@ -540,54 +632,62 @@ class _QuizQuestionScreenState extends State<QuizQuestionScreen> {
       child: Column(
         mainAxisAlignment: MainAxisAlignment.center,
         children: [
-          Container(
+          Opacity(
-            width: 150,
+            opacity: _numberDontKnow ? 0.4 : 1,
-            decoration: BoxDecoration(
+            child: IgnorePointer(
-              color: Colors.white.withValues(alpha: 0.70),
+              ignoring: _numberDontKnow,
-              borderRadius: BorderRadius.circular(16),
+              child: Container(
-              border: Border.all(
+                width: 150,
-                color: Colors.black.withValues(alpha: 0.12),
+                decoration: BoxDecoration(
-                width: 1.0,
+                  color: Colors.white.withValues(alpha: 0.70),
-              ),
+                  borderRadius: BorderRadius.circular(16),
-              boxShadow: [
+                  border: Border.all(
-                BoxShadow(
+                    color: Colors.black.withValues(alpha: 0.12),
-                  color: Colors.black.withValues(alpha: 0.06),
+                    width: 1.0,
-                  blurRadius: 18,
+                  ),
-                  offset: const Offset(0, 10),
+                  boxShadow: [
+                    BoxShadow(
+                      color: Colors.black.withValues(alpha: 0.06),
+                      blurRadius: 18,
+                      offset: const Offset(0, 10),
+                    ),
+                  ],
                 ),
-              ],
+                child: TextField(
-            ),
+                  controller: _numberController,
-            child: TextField(
+                  keyboardType: TextInputType.number,
-              controller: _numberController,
+                  textAlign: TextAlign.center,
-              keyboardType: TextInputType.number,
+                  inputFormatters: [
-              textAlign: TextAlign.center,
+                    FilteringTextInputFormatter.digitsOnly,
-              inputFormatters: [
+                    LengthLimitingTextInputFormatter(2),
-                FilteringTextInputFormatter.digitsOnly,
+                  ],
-                LengthLimitingTextInputFormatter(2),
+                  style: const TextStyle(
-              ],
+                    fontSize: 24,
-              style: const TextStyle(
+                    fontWeight: FontWeight.w900,
-                fontSize: 24,
+                    color: Color(0xFF2F9E94),
-                fontWeight: FontWeight.w900,
+                  ),
-                color: Color(0xFF2F9E94),
+                  decoration: const InputDecoration(
-              ),
+                    border: InputBorder.none,
-              decoration: const InputDecoration(
+                    hintText: '0',
-                border: InputBorder.none,
+                    hintStyle: TextStyle(
-                hintText: '0',
+                      fontSize: 24,
-                hintStyle: TextStyle(
+                      fontWeight: FontWeight.w900,
-                  fontSize: 24,
+                      color: Colors.grey,
-                  fontWeight: FontWeight.w900,
+                    ),
-                  color: Colors.grey,
+                    contentPadding: EdgeInsets.symmetric(vertical: 20),
+                  ),
+                  onChanged: (value) {
+                    setState(() {
+                      _numberValue = int.tryParse(value);
+                    });
+                  },
                 ),
-                contentPadding: EdgeInsets.symmetric(vertical: 20),
               ),
-              onChanged: (value) {
-                setState(() {
-                  _numberValue = int.tryParse(value);
-                });
-              },
             ),
           ),
-          if (_numberValue != null && _numberValue! > _maxTeethCount) ...[
+          if (_numberValue != null &&
+              _numberValue! > _maxTeethCount &&
+              !_numberDontKnow) ...[
             const SizedBox(height: 10),
             Text(
               'Um número tão alto assim não é possível.\nO máximo é $_maxTeethCount.',
@@ -599,6 +699,62 @@ class _QuizQuestionScreenState extends State<QuizQuestionScreen> {
               ),
             ),
           ],
+          const SizedBox(height: 14),
+          TapBounce(
+            scale: 0.97,
+            child: InkWell(
+              borderRadius: BorderRadius.circular(999),
+              onTap: () {
+                setState(() {
+                  _numberDontKnow = !_numberDontKnow;
+                  if (_numberDontKnow) {
+                    _numberController?.clear();
+                    _numberValue = null;
+                  }
+                });
+              },
+              child: Container(
+                padding: const EdgeInsets.symmetric(
+                  horizontal: 14,
+                  vertical: 8,
+                ),
+                decoration: BoxDecoration(
+                  color: _numberDontKnow
+                      ? const Color(0xFF2F9E94)
+                      : Colors.white.withValues(alpha: 0.70),
+                  borderRadius: BorderRadius.circular(999),
+                  border: Border.all(
+                    color: _numberDontKnow
+                        ? const Color(0xFF2F9E94)
+                        : Colors.black.withValues(alpha: 0.12),
+                  ),
+                ),
+                child: Row(
+                  mainAxisSize: MainAxisSize.min,
+                  children: [
+                    Icon(
+                      Icons.help_outline_rounded,
+                      size: 16,
+                      color: _numberDontKnow
+                          ? Colors.white
+                          : Colors.black.withValues(alpha: 0.55),
+                    ),
+                    const SizedBox(width: 6),
+                    Text(
+                      'Não sei',
+                      style: TextStyle(
+                        fontWeight: FontWeight.w800,
+                        fontSize: 13,
+                        color: _numberDontKnow
+                            ? Colors.white
+                            : Colors.black.withValues(alpha: 0.55),
+                      ),
+                    ),
+                  ],
+                ),
+              ),
+            ),
+          ),
         ],
       ),
     );
@@ -745,11 +901,38 @@ class _QuestionReferenceImages extends StatelessWidget {
         borderRadius: BorderRadius.circular(14),
         child: AspectRatio(
           aspectRatio: 16 / 9,
-          child: Image.asset(
+          child: Stack(
-            paths.first,
+            fit: StackFit.expand,
-            fit: BoxFit.cover,
+            children: [
-            cacheWidth: 800,
+              Image.asset(
-            errorBuilder: (context, error, stackTrace) => _placeholder(),
+                paths.first,
+                fit: BoxFit.cover,
+                cacheWidth: 800,
+                errorBuilder: (context, error, stackTrace) => _placeholder(),
+              ),
+              Positioned(
+                left: 8,
+                bottom: 8,
+                child: Container(
+                  padding: const EdgeInsets.symmetric(
+                    horizontal: 8,
+                    vertical: 4,
+                  ),
+                  decoration: BoxDecoration(
+                    color: Colors.black.withValues(alpha: 0.55),
+                    borderRadius: BorderRadius.circular(999),
+                  ),
+                  child: const Text(
+                    'Imagem de referência',
+                    style: TextStyle(
+                      color: Colors.white,
+                      fontWeight: FontWeight.w700,
+                      fontSize: 10.5,
+                    ),
+                  ),
+                ),
+              ),
+            ],
           ),
         ),
       );
@@ -787,3 +970,150 @@ class _QuestionReferenceImages extends StatelessWidget {
     );
   }
 }
+
+/// Mostrado quando a pergunta não tem imagem de referência — em vez de o
+/// bloco colapsar (como acontecia antes), mostra um pequeno ícone colorido
+/// relevante ao tema, sem ocupar a largura toda (esse destaque é reservado
+/// para as perguntas que realmente têm imagem).
+class _FallbackIconBlock extends StatelessWidget {
+  const _FallbackIconBlock({required this.icon, required this.color});
+
+  final IconData icon;
+  final Color color;
+
+  @override
+  Widget build(BuildContext context) {
+    return Center(
+      child: Container(
+        width: 64,
+        height: 64,
+        decoration: BoxDecoration(
+          color: color,
+          borderRadius: BorderRadius.circular(18),
+        ),
+        child: Icon(icon, size: 32, color: Colors.white),
+      ),
+    );
+  }
+}
+
+/// Resposta Sim/Não em formato de pílula horizontal: círculo colorido +
+/// texto + indicador circular à direita que preenche quando selecionado.
+class _QuizAnswerPill extends StatelessWidget {
+  const _QuizAnswerPill({
+    required this.answer,
+    required this.selected,
+    required this.onTap,
+  });
+
+  final QuizAnswer answer;
+  final bool selected;
+  final VoidCallback onTap;
+
+  bool get _isYes => (answer.value ?? '').trim().toLowerCase() == 'sim';
+  bool get _isNo => (answer.value ?? '').trim().toLowerCase() == 'nao';
+
+  @override
+  Widget build(BuildContext context) {
+    final accent = _isYes
+        ? const Color(0xFF2F9E94)
+        : _isNo
+        ? const Color(0xFFFF55A7)
+        : Colors.black.withValues(alpha: 0.35);
+    final borderColor = selected
+        ? const Color(0xFF2F9E94)
+        : Colors.black.withValues(alpha: 0.10);
+
+    return TapBounce(
+      scale: 0.97,
+      child: AnimatedContainer(
+        duration: const Duration(milliseconds: 220),
+        curve: Curves.easeOutCubic,
+        decoration: BoxDecoration(
+          color: selected
+              ? Colors.white.withValues(alpha: 0.92)
+              : Colors.white.withValues(alpha: 0.70),
+          borderRadius: BorderRadius.circular(999),
+          border: Border.all(color: borderColor, width: selected ? 1.4 : 1.0),
+          boxShadow: [
+            BoxShadow(
+              color: Colors.black.withValues(alpha: 0.06),
+              blurRadius: 14,
+              offset: const Offset(0, 8),
+            ),
+          ],
+        ),
+        child: Material(
+          color: Colors.transparent,
+          child: InkWell(
+            borderRadius: BorderRadius.circular(999),
+            onTap: onTap,
+            splashFactory: InkSparkle.splashFactory,
+            child: Padding(
+              padding: const EdgeInsets.symmetric(
+                horizontal: 14,
+                vertical: 10,
+              ),
+              child: Row(
+                children: [
+                  Container(
+                    width: 28,
+                    height: 28,
+                    decoration: BoxDecoration(
+                      color: accent,
+                      shape: BoxShape.circle,
+                    ),
+                    child: Icon(
+                      _isYes
+                          ? Icons.check_rounded
+                          : _isNo
+                          ? Icons.close_rounded
+                          : Icons.help_outline_rounded,
+                      color: Colors.white,
+                      size: 17,
+                    ),
+                  ),
+                  const SizedBox(width: 12),
+                  Expanded(
+                    child: Text(
+                      answer.title,
+                      style: const TextStyle(
+                        fontWeight: FontWeight.w800,
+                        fontSize: 15,
+                        color: Color(0xFF2F9E94),
+                      ),
+                    ),
+                  ),
+                  AnimatedContainer(
+                    duration: const Duration(milliseconds: 220),
+                    width: 22,
+                    height: 22,
+                    decoration: BoxDecoration(
+                      shape: BoxShape.circle,
+                      color: selected
+                          ? const Color(0xFF2F9E94)
+                          : Colors.transparent,
+                      border: Border.all(
+                        color: selected
+                            ? const Color(0xFF2F9E94)
+                            : Colors.black.withValues(alpha: 0.25),
+                        width: 1.6,
+                      ),
+                    ),
+                    child: selected
+                        ? const Icon(
+                            Icons.check_rounded,
+                            size: 14,
+                            color: Colors.white,
+                          )
+                        : null,
+                  ),
+                ],
+              ),
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}

lib/screens/settings_screen.dart

@@ -33,34 +33,29 @@ class _SettingsBodyState extends State<SettingsBody> {
       context,
       title: 'Apagar dados da conta',
       message:
-          'Isso remove permanentemente seu perfil, crianças cadastradas e '
+          'Isso remove permanentemente a sua conta, perfil, crianças '
-          'fotos. Essa ação não pode ser desfeita. Deseja continuar?',
+          'cadastradas e fotos — incluindo o login, permitindo criar uma '
+          'nova conta com o mesmo e-mail depois. Essa ação não pode ser '
+          'desfeita. Deseja continuar?',
       confirmLabel: 'Apagar',
       confirmColor: _accentPink,
     );
 
     if (confirmed != true) return;
 
-    final uid = supabase.auth.currentUser?.id;
-    if (uid == null) return;
-
     setState(() => _deletingAccount = true);
     try {
-      await supabase.from('children').delete().eq('owner_id', uid);
+      // A remoção de `auth.users` exige a service role key, que o app nunca
-
+      // deve carregar — por isso corre numa Edge Function (server-side); ver
-      // O Supabase não avisa quando uma política de RLS bloqueia silenciosamente
+      // supabase/functions/delete-account. Sem isto, apagar só as linhas de
-      // uma operação: sem `.select()` para devolver as linhas apagadas não há
+      // `profiles`/`children` deixava o e-mail "ocupado" no Supabase Auth,
-      // como distinguir "0 linhas existiam" de "sem permissão para apagar".
+      // impedindo criar uma nova conta com o mesmo e-mail.
-      final deletedProfile = await supabase
+      final response = await supabase.functions.invoke('delete-account');
-          .from('profiles')
+      final data = response.data;
-          .delete()
+      final errorMessage = (data is Map) ? data['error']?.toString() : null;
-          .eq('id', uid)
+      if (response.status != 200 || errorMessage != null) {
-          .select('id');
-
-      if (deletedProfile.isEmpty) {
         throw StateError(
-          'A base de dados recusou apagar o perfil (sem política de RLS '
+          errorMessage ?? 'Erro ao apagar conta (status ${response.status})',
-          'para DELETE). Os dados não foram removidos.',
         );
       }
 

lib/screens/video_screen.dart

@@ -7,6 +7,7 @@ import 'package:lottie/lottie.dart';
 import 'package:video_player/video_player.dart';
 import 'package:youtube_player_flutter/youtube_player_flutter.dart';
 
+import '../watched_videos_prefs.dart';
 import '../widgets/app_gradients.dart';
 import '../widgets/entrance.dart';
 import '../widgets/tap_bounce.dart';
@@ -97,19 +98,19 @@ final List<VideoData> videoList = [
     id: 11,
     title: 'Episódio 11',
     description: 'Aprenda sobre saúde bucal neste episódio',
-    videoPath: 'assets/videos/episodio_11.mp4',
+    youtubeId: '6sYoBUjks_I',
   ),
   VideoData(
     id: 12,
     title: 'Episódio 12',
     description: 'Aprenda sobre saúde bucal neste episódio',
-    videoPath: 'assets/videos/episodio_12.mp4',
+    youtubeId: 'eznKrErQbHo',
   ),
   VideoData(
     id: 13,
     title: 'Episódio 13',
     description: 'Aprenda sobre saúde bucal neste episódio',
-    videoPath: 'assets/videos/episodio_13.mp4',
+    youtubeId: 'VO9CNqHRdeM',
   ),
 ];
 
@@ -156,7 +157,20 @@ void _evictAllVideoControllers() {
   }
 }
 
-Future<void> showVideoPlayerDialog(BuildContext context, VideoData video) {
+/// Regista o episódio como assistido (localmente, por criança). Chamado
+/// quando um player deteta que o vídeo chegou ao fim — sem [scopeId] (nenhuma
+/// criança selecionada) não há onde guardar, por isso não faz nada.
+void markVideoWatched(String? scopeId, int videoId) {
+  final scope = (scopeId ?? '').trim();
+  if (scope.isEmpty) return;
+  WatchedVideosPrefs.markWatched(scope, videoId);
+}
+
+Future<void> showVideoPlayerDialog(
+  BuildContext context,
+  VideoData video, {
+  String? scopeId,
+}) {
   if (video.youtubeId != null) {
     if (video.youtubeId!.isEmpty) {
       ScaffoldMessenger.of(
@@ -165,17 +179,23 @@ Future<void> showVideoPlayerDialog(BuildContext context, VideoData video) {
       return Future.value();
     }
     return Navigator.of(context).push<void>(
-      MaterialPageRoute(builder: (context) => _YoutubePlayerPage(video: video)),
+      MaterialPageRoute(
+        builder: (context) => _YoutubePlayerPage(video: video, scopeId: scopeId),
+      ),
     );
   }
   return showDialog<void>(
     context: context,
-    builder: (context) => _VideoPlayerDialog(video: video),
+    builder: (context) => _VideoPlayerDialog(video: video, scopeId: scopeId),
   );
 }
 
 class VideoScreen extends StatefulWidget {
-  const VideoScreen({super.key});
+  const VideoScreen({super.key, this.scopeId});
+
+  /// Identifica a criança selecionada (`'${uid}_${childId}'`), usado para
+  /// guardar localmente quais episódios ela já assistiu até ao fim.
+  final String? scopeId;
 
   static const Color _teal = Color(0xFF2F9E94);
   static const Color _accentPink = Color(0xFFFF55A7);
@@ -329,6 +349,7 @@ class _VideoScreenState extends State<VideoScreen> {
                                 ),
                                 child: _VideoButton(
                                   video: _filteredVideos[index],
+                                  scopeId: widget.scopeId,
                                 ),
                               );
                             },
@@ -509,9 +530,10 @@ class _VideoThumbnailState extends State<VideoThumbnail> {
 }
 
 class _VideoButton extends StatelessWidget {
-  const _VideoButton({required this.video});
+  const _VideoButton({required this.video, this.scopeId});
 
   final VideoData video;
+  final String? scopeId;
 
   void _showVideoPlayer(BuildContext context, VideoData video) {
     if (video.youtubeId == null) {
@@ -519,7 +541,7 @@ class _VideoButton extends StatelessWidget {
       // em dialog, que precisa dos seus próprios decoders de vídeo/áudio.
       _evictAllVideoControllers();
     }
-    showVideoPlayerDialog(context, video);
+    showVideoPlayerDialog(context, video, scopeId: scopeId);
   }
 
   @override
@@ -588,9 +610,10 @@ class _VideoButton extends StatelessWidget {
 /// a proporção 16:9 do YouTube e sobrar espaço vazio quando o ecrã tem uma
 /// proporção mais larga que 16:9 (ex.: a maioria dos telemóveis atuais).
 class _YoutubePlayerPage extends StatefulWidget {
-  const _YoutubePlayerPage({required this.video});
+  const _YoutubePlayerPage({required this.video, this.scopeId});
 
   final VideoData video;
+  final String? scopeId;
 
   @override
   State<_YoutubePlayerPage> createState() => _YoutubePlayerPageState();
@@ -599,6 +622,7 @@ class _YoutubePlayerPage extends StatefulWidget {
 class _YoutubePlayerPageState extends State<_YoutubePlayerPage>
     with WidgetsBindingObserver {
   late final YoutubePlayerController _controller;
+  bool _markedWatched = false;
 
   @override
   void initState() {
@@ -607,9 +631,18 @@ class _YoutubePlayerPageState extends State<_YoutubePlayerPage>
       initialVideoId: widget.video.youtubeId!,
       flags: const YoutubePlayerFlags(autoPlay: true, mute: false),
     );
+    _controller.addListener(_onControllerValueChanged);
     WidgetsBinding.instance.addObserver(this);
   }
 
+  void _onControllerValueChanged() {
+    if (_markedWatched) return;
+    if (_controller.value.playerState == PlayerState.ended) {
+      _markedWatched = true;
+      markVideoWatched(widget.scopeId, widget.video.id);
+    }
+  }
+
   @override
   void didChangeMetrics() {
     final isLandscape =
@@ -628,6 +661,7 @@ class _YoutubePlayerPageState extends State<_YoutubePlayerPage>
   void dispose() {
     WidgetsBinding.instance.removeObserver(this);
     SystemChrome.restoreSystemUIOverlays();
+    _controller.removeListener(_onControllerValueChanged);
     _controller.dispose();
     super.dispose();
   }
@@ -716,9 +750,10 @@ class _CoverYoutubePlayer extends StatelessWidget {
 }
 
 class _VideoPlayerDialog extends StatefulWidget {
-  const _VideoPlayerDialog({required this.video});
+  const _VideoPlayerDialog({required this.video, this.scopeId});
 
   final VideoData video;
+  final String? scopeId;
 
   @override
   State<_VideoPlayerDialog> createState() => _VideoPlayerDialogState();
@@ -727,6 +762,7 @@ class _VideoPlayerDialog extends StatefulWidget {
 class _VideoPlayerDialogState extends State<_VideoPlayerDialog> {
   late VideoPlayerController _controller;
   bool _isInitialized = false;
+  bool _markedWatched = false;
 
   @override
   void initState() {
@@ -738,6 +774,7 @@ class _VideoPlayerDialogState extends State<_VideoPlayerDialog> {
     _controller = VideoPlayerController.asset(widget.video.videoPath!);
     try {
       await _controller.initialize();
+      _controller.addListener(_onControllerValueChanged);
       if (mounted) {
         setState(() {
           _isInitialized = true;
@@ -755,8 +792,19 @@ class _VideoPlayerDialogState extends State<_VideoPlayerDialog> {
     }
   }
 
+  void _onControllerValueChanged() {
+    if (_markedWatched) return;
+    final value = _controller.value;
+    if (!value.isInitialized || value.duration == Duration.zero) return;
+    if (value.position >= value.duration - const Duration(milliseconds: 300)) {
+      _markedWatched = true;
+      markVideoWatched(widget.scopeId, widget.video.id);
+    }
+  }
+
   @override
   void dispose() {
+    _controller.removeListener(_onControllerValueChanged);
     _controller.dispose();
     super.dispose();
   }
@@ -802,6 +850,8 @@ class _VideoPlayerDialogState extends State<_VideoPlayerDialog> {
                   _VideoControls(
                     controller: _controller,
                     videoPath: widget.video.videoPath!,
+                    videoId: widget.video.id,
+                    scopeId: widget.scopeId,
                     onClose: () => Navigator.of(context).pop(),
                   ),
               ],
@@ -817,11 +867,15 @@ class _VideoControls extends StatefulWidget {
   const _VideoControls({
     required this.controller,
     required this.videoPath,
+    required this.videoId,
     required this.onClose,
+    this.scopeId,
   });
 
   final VideoPlayerController controller;
   final String videoPath;
+  final int videoId;
+  final String? scopeId;
   final VoidCallback onClose;
 
   @override
@@ -926,6 +980,8 @@ class _VideoControlsState extends State<_VideoControls> {
                           MaterialPageRoute(
                             builder: (context) => _FullscreenVideoPlayer(
                               videoPath: widget.videoPath,
+                              videoId: widget.videoId,
+                              scopeId: widget.scopeId,
                             ),
                             fullscreenDialog: true,
                           ),
@@ -949,9 +1005,15 @@ class _VideoControlsState extends State<_VideoControls> {
 }
 
 class _FullscreenVideoPlayer extends StatefulWidget {
-  const _FullscreenVideoPlayer({required this.videoPath});
+  const _FullscreenVideoPlayer({
+    required this.videoPath,
+    required this.videoId,
+    this.scopeId,
+  });
 
   final String videoPath;
+  final int videoId;
+  final String? scopeId;
 
   @override
   State<_FullscreenVideoPlayer> createState() => _FullscreenVideoPlayerState();
@@ -960,6 +1022,7 @@ class _FullscreenVideoPlayer extends StatefulWidget {
 class _FullscreenVideoPlayerState extends State<_FullscreenVideoPlayer> {
   late VideoPlayerController _controller;
   bool _isInitialized = false;
+  bool _markedWatched = false;
 
   @override
   void initState() {
@@ -994,6 +1057,16 @@ class _FullscreenVideoPlayerState extends State<_FullscreenVideoPlayer> {
   }
 
   void _onControllerUpdate() {
+    if (!_markedWatched) {
+      final value = _controller.value;
+      if (value.isInitialized &&
+          value.duration != Duration.zero &&
+          value.position >=
+              value.duration - const Duration(milliseconds: 300)) {
+        _markedWatched = true;
+        markVideoWatched(widget.scopeId, widget.videoId);
+      }
+    }
     if (mounted) {
       setState(() {});
     }

lib/watched_videos_prefs.dart

@@ -0,0 +1,36 @@
+import 'package:shared_preferences/shared_preferences.dart';
+
+/// Registo local (por criança) de episódios assistidos até ao fim.
+/// Segue o mesmo padrão de [QuizPrefs]: chaves com sufixo `_scopeId`,
+/// guardadas via [SharedPreferences], sem qualquer chamada ao Supabase.
+class WatchedVideosPrefs {
+  static const String _kWatchedKey = 'watched_videos';
+
+  static String _key(String scopeId) => '${_kWatchedKey}_$scopeId';
+
+  static Future<void> markWatched(String scopeId, int videoId) async {
+    final prefs = await SharedPreferences.getInstance();
+    final key = _key(scopeId);
+    final ids = (prefs.getStringList(key) ?? <String>[]).toSet();
+    ids.add(videoId.toString());
+    await prefs.setStringList(key, ids.toList());
+  }
+
+  static Future<bool> isWatched(String scopeId, int videoId) async {
+    final prefs = await SharedPreferences.getInstance();
+    final ids = prefs.getStringList(_key(scopeId)) ?? const [];
+    return ids.contains(videoId.toString());
+  }
+
+  static Future<int> getWatchedCount(String scopeId) async {
+    final prefs = await SharedPreferences.getInstance();
+    final ids = prefs.getStringList(_key(scopeId)) ?? const [];
+    return ids.length;
+  }
+
+  static Future<Set<int>> getWatchedIds(String scopeId) async {
+    final prefs = await SharedPreferences.getInstance();
+    final ids = prefs.getStringList(_key(scopeId)) ?? const [];
+    return ids.map((e) => int.tryParse(e) ?? -1).where((e) => e >= 0).toSet();
+  }
+}

lib/widgets/app_gradients.dart

@@ -14,3 +14,10 @@ const LinearGradient kGreenButtonGradient = LinearGradient(
   end: Alignment.centerRight,
   colors: [Color(0xFF2F9E94), Color(0xFF6BB79F)],
 );
+
+/// Gradiente rosa vivo do card do quiz na Home.
+const LinearGradient kPinkHeroGradient = LinearGradient(
+  begin: Alignment.topLeft,
+  end: Alignment.bottomRight,
+  colors: [Color(0xFFFF55A7), Color(0xFFE83E93)],
+);

pubspec.yaml

@@ -71,9 +71,6 @@ flutter:
     - lottie/
     - assets/Check-theeth.png
     - assets/mockup_images/
-    - assets/videos/episodio_11.mp4
-    - assets/videos/episodio_12.mp4
-    - assets/videos/episodio_13.mp4
 
 flutter_launcher_icons:
   android: true

supabase/.temp/linked-project.json

@@ -0,0 +1 @@
+{"ref":"mannjismlhlwaqqqnvog","name":"Check_Teeth_Kids","organization_id":"huurggiiridujjbkbayo","organization_slug":"huurggiiridujjbkbayo"}

supabase/functions/delete-account/index.ts

@@ -0,0 +1,65 @@
+// Edge Function: apaga TODA a conta do utilizador autenticado — linhas em
+// `children`/`profiles` e o próprio registo em `auth.users`. Isto é o que
+// falta para permitir criar uma nova conta com o mesmo e-mail depois de
+// "Apagar dados da conta": o app (client) nunca teve a service role key para
+// poder chamar `auth.admin.deleteUser`, por isso essa etapa faltava e o
+// e-mail continuava "ocupado" no Supabase Auth.
+//
+// Deploy (uma vez, com a Supabase CLI já autenticada):
+//   supabase functions deploy delete-account --project-ref mannjismlhlwaqqqnvog
+//
+// SUPABASE_URL e SUPABASE_SERVICE_ROLE_KEY já ficam disponíveis
+// automaticamente dentro de toda Edge Function — não é preciso configurar
+// nenhum secret manualmente.
+
+import { createClient } from 'https://esm.sh/@supabase/supabase-js@2';
+
+const SUPABASE_URL = Deno.env.get('SUPABASE_URL')!;
+const SERVICE_ROLE_KEY = Deno.env.get('SUPABASE_SERVICE_ROLE_KEY')!;
+
+Deno.serve(async (req) => {
+  if (req.method !== 'POST') {
+    return new Response(JSON.stringify({ error: 'Method not allowed' }), {
+      status: 405,
+      headers: { 'Content-Type': 'application/json' },
+    });
+  }
+
+  const authHeader = req.headers.get('Authorization') ?? '';
+  const jwt = authHeader.replace('Bearer ', '').trim();
+  if (!jwt) {
+    return new Response(JSON.stringify({ error: 'Sessão em falta' }), {
+      status: 401,
+      headers: { 'Content-Type': 'application/json' },
+    });
+  }
+
+  const admin = createClient(SUPABASE_URL, SERVICE_ROLE_KEY);
+
+  // Valida o JWT do chamador e identifica o uid — nunca confiar num uid vindo
+  // do corpo do pedido, sob pena de qualquer pessoa poder apagar outra conta.
+  const { data: userData, error: userError } = await admin.auth.getUser(jwt);
+  if (userError || !userData?.user) {
+    return new Response(JSON.stringify({ error: 'Sessão inválida' }), {
+      status: 401,
+      headers: { 'Content-Type': 'application/json' },
+    });
+  }
+  const uid = userData.user.id;
+
+  await admin.from('children').delete().eq('owner_id', uid);
+  await admin.from('profiles').delete().eq('id', uid);
+
+  const { error: deleteUserError } = await admin.auth.admin.deleteUser(uid);
+  if (deleteUserError) {
+    return new Response(JSON.stringify({ error: deleteUserError.message }), {
+      status: 500,
+      headers: { 'Content-Type': 'application/json' },
+    });
+  }
+
+  return new Response(JSON.stringify({ ok: true }), {
+    status: 200,
+    headers: { 'Content-Type': 'application/json' },
+  });
+});