Atualização do quiz e videos(incompleto)

lib/quiz/quiz_result.dart

@@ -62,17 +62,20 @@ class _QuizResultScreenState extends State<QuizResultScreen> {
         scope.startsWith('${userId}_')) {
       final childId = scope.substring(userId.length + 1).trim();
       if (childId.isNotEmpty) {
-        await FirebaseFirestore.instance
-            .collection('users')
-            .doc(userId)
-            .collection('children')
-            .doc(childId)
-            .set({
-              'lastScore': widget.finalScore,
-              'lastMaxScore': widget.maxScore,
-              'lastQuizAt': FieldValue.serverTimestamp(),
-            }, SetOptions(merge: true))
-            .catchError((_) {});
+        // Fire-and-forget: avoid blocking UI on Firestore (may hang offline).
+        unawaited(
+          FirebaseFirestore.instance
+              .collection('users')
+              .doc(userId)
+              .collection('children')
+              .doc(childId)
+              .set({
+                'lastScore': widget.finalScore,
+                'lastMaxScore': widget.maxScore,
+                'lastQuizAt': FieldValue.serverTimestamp(),
+              }, SetOptions(merge: true))
+              .catchError((_) {}),
+        );
       }
     }
   }
@@ -222,8 +225,11 @@ class _QuizResultScreenState extends State<QuizResultScreen> {
                               fontWeight: FontWeight.w900,
                             ),
                           ),
-                          onPressed: () =>
-                              Navigator.of(context).popUntil((r) => r.isFirst),
+                          onPressed: () async {
+                            await _saveResultFuture;
+                            if (!context.mounted) return;
+                            Navigator.of(context).popUntil((r) => r.isFirst);
+                          },
                           child: const Text('Avançar'),
                         ),
                       ),