tests fix

PROGRESS.md

@@ -128,6 +128,12 @@
     - Backend generator picks cards from pack pool and stores `matrixSize` in `uiData`
     - Web UI: image grid + target `original` word; wrong = shake + error sound; correct = flip to translation then disappear
     - Admin: question type selector + matrix size form; JSON (de)serialization + vitest coverage
+  - **Matrix Question Types**: Added support for different matrix question types
+    - Created `MatrixQuestionType` enum with 5 types: original_translation, original_images, translation_originals, audio_images, audio_translation
+    - Backend generator now creates stages array with all target words/audio upfront
+    - MatrixCardDto adaptively fills only needed fields based on question type (text-only, image-only, or both)
+    - Web UI supports stages navigation, audio playback with repeat button, and adaptive card display
+    - Added MatrixStageDto for backend and MatrixStage domain model for client
   - **CardViewer Carousel Looping**: Implemented infinite carousel scrolling for card viewer
     - Cards now loop seamlessly: last card → first card and first card → last card
     - Works for both swipe gestures and navigation buttons
@@ -170,6 +176,11 @@
     - Added DAO helpers and a focused unit test for the cleanup logic
     - Added regression test to ensure `updateGeneratedTests()` creates a pack link
   - **Matrix Test (image selection)**: Added matrix question generator + API storage support (cards auto-generated if missing)
+  - **Matrix Question Types**: Enhanced matrix question generator with multiple question types
+    - Added MatrixQuestionType enum with extension methods for type checking
+    - Generator creates stages array with all target words/audio for multi-step questions
+    - Supports original_translation, original_images, translation_originals, audio_images, audio_translation types
+    - MatrixCardDto adaptively fills fields based on question type (only needed content)
   - **MinIO Migration**: Migrated file storage from local filesystem to MinIO object storage
     - Created MinioService for MinIO operations (upload, presigned URLs, delete, fileExists)
     - Created MediaApiV2 with endpoints for file uploads (card-image, test-image, voice) and presigned URL generation
@@ -267,4 +278,4 @@
 
 ---
 
-*Last updated: December 19, 2025*
+*Last updated: December 20, 2025*

TODO.md

@@ -176,6 +176,12 @@
   - Auto-generate matrix images from pack card pool (generator framework)
   - Web: multi-stage single question (shake on wrong, flip+reveal translation on correct, then disappear)
   - Admin: matrix size configuration + JSON (de)serialization + tests
+- [x] **Matrix Question Types**: Added support for different matrix question types
+  - Created MatrixQuestionType enum with 5 types (original_translation, original_images, translation_originals, audio_images, audio_translation)
+  - Backend generates stages array with all target words/audio upfront
+  - MatrixCardDto adaptively fills only needed fields based on question type
+  - Web UI supports stages navigation, audio playback, and adaptive card display
+  - Need to add unit tests for generator and all question types
 - [x] **CardViewer Carousel Looping**: Implement infinite carousel scrolling for card viewer
   - Cards loop seamlessly: last card → first card and first card → last card
   - Works for both swipe gestures and navigation buttons
@@ -239,4 +245,4 @@
 
 ---
 
-*Last updated: December 19, 2025*
+*Last updated: December 20, 2025*

mnemo_cards_backend/lib/tests/generators/question_generators/input_buttons_question_generator.dart

@@ -37,8 +37,24 @@ class InputButtonsQuestionGenerator implements QuestionGenerator {
     return '/api/v2/packs/${data.packId}/cards/$imageId/image';
   }
 
-  InputButtonsQuestionType _getRandomQuestionType() {
+  InputButtonsQuestionType _getRandomQuestionType({bool excludeAudioTypes = false}) {
-    final types = (possibleTypes?.toList() ?? InputButtonsQuestionType.values);
+    var types = (possibleTypes?.toList() ?? InputButtonsQuestionType.values);
+    
+    // Exclude audio types if audio is not available
+    if (excludeAudioTypes) {
+      types = types.where((type) => !type.audioQuestion).toList();
+    }
+    
+    // If no types available, fallback to non-audio types
+    if (types.isEmpty) {
+      types = InputButtonsQuestionType.values.where((type) => !type.audioQuestion).toList();
+    }
+    
+    // If still empty, use translation_original as fallback
+    if (types.isEmpty) {
+      return InputButtonsQuestionType.translation_original;
+    }
+    
     return types[random.nextInt(types.length)];
   }
 
@@ -66,35 +82,44 @@ class InputButtonsQuestionGenerator implements QuestionGenerator {
             .take(4)
             .toList();
 
+    // Check if audio is available before selecting question type
+    final hasAudio = _getAudioUuid(answerItem) != null;
+
     // mb use custom ids
-    final questionType = type ?? _getRandomQuestionType();
+    // If no type specified, select random type excluding audio types if audio is not available
+    final questionType = type ?? _getRandomQuestionType(excludeAudioTypes: !hasAudio);
+    
+    // If audio type was selected but audio is not available, select a different type
+    final finalQuestionType = (questionType.audioQuestion && !hasAudio)
+        ? _getRandomQuestionType(excludeAudioTypes: true)
+        : questionType;
     final questionText =
-        questionType.translationQuestion ? answerItem.translation : null;
+        finalQuestionType.translationQuestion ? answerItem.translation : null;
     final questionImage =
-        questionType.imageQuestion ? _imageIdToUrl(answerItem.image) : null;
+        finalQuestionType.imageQuestion ? _imageIdToUrl(answerItem.image) : null;
 
     String? questionAudio = null;
-    if (questionType.audioQuestion) {
+    if (finalQuestionType.audioQuestion) {
       // Use UUID from MinIO if available, otherwise null
       questionAudio = _getAudioUuid(answerItem);
     } else if (withAudio) {
       // nothing to fo here
     }
 
-    final answer = questionType.translationAnswer
+    final answer = finalQuestionType.translationAnswer
         ? answerItem.translation
         : answerItem.original;
     String template = answer.asTemplate;
     if (showArticle &&
         answer.contains(' ') &&
-        !questionType.translationAnswer) {
+        !finalQuestionType.translationAnswer) {
       final article = answer.split(' ').firstOrNull;
       if (article != null) {
         template =
             '$article ${answer.substring(article.length + 1).asTemplate}';
       }
     }
-    if (visibleButtonsPercent > 0 && !questionType.translationAnswer) {
+    if (visibleButtonsPercent > 0 && !finalQuestionType.translationAnswer) {
       var matches = '_'.allMatches(template).toList();
       int visibleLetters = (visibleButtonsPercent * matches.length).floor();
       while (visibleLetters-- > 0) {
@@ -115,7 +140,7 @@ class InputButtonsQuestionGenerator implements QuestionGenerator {
       word: answerItem.original,
       audio: questionAudio,
       template: template,
-      buttons: (questionType.translationAnswer
+      buttons: (finalQuestionType.translationAnswer
               ? [
                   ...answerItem.translation.split(''),
                   ...otherCards.expand((c) => c.translation.split('').toSet())
@@ -124,7 +149,7 @@ class InputButtonsQuestionGenerator implements QuestionGenerator {
                   ...answerItem.original.split(''),
                   ...otherCards.expand((c) => c.original.split('').toSet()),
                 ])
-          .map((e) => e.trim())
+          .map((e) => e.trim().toLowerCase())
           .where((ch) => ch.isNotEmpty)
           .take(20)
           .mapIndexed((index, ch) => TestButtonDto('${ch}_$index', null, ch))

mnemo_cards_backend/lib/tests/generators/question_generators/matrix_question_generator.dart

@@ -5,20 +5,59 @@ import 'package:mnemo_cards_common/mnemo_cards_common.dart';
 import '../models/creation_test_data.dart';
 import 'question_generator.dart';
 
-/// Generates a matrix-image question:
+enum MatrixQuestionType {
-/// - shows N x N images (cards from the pack pool)
+  original_translation, // оригинал снизу, переведенные карточки
-/// - shows a target word (original) under the matrix
+  original_images, // оригинал снизу, изображения на карточках
+  translation_originals, // перевод снизу, карточки с оригиналом
+  audio_images, // аудио снизу, карточки с изображениями
+  audio_translation, // аудио снизу, карточки с переводами
+}
+
+extension MatrixQuestionTypeExtension on MatrixQuestionType {
+  bool get originalTarget => [
+        MatrixQuestionType.original_translation,
+        MatrixQuestionType.original_images,
+      ].contains(this);
+
+  bool get translationTarget => [
+        MatrixQuestionType.translation_originals,
+      ].contains(this);
+
+  bool get audioTarget => [
+        MatrixQuestionType.audio_images,
+        MatrixQuestionType.audio_translation,
+      ].contains(this);
+
+  bool get translationCards => [
+        MatrixQuestionType.original_translation,
+        MatrixQuestionType.audio_translation,
+      ].contains(this);
+
+  bool get originalCards => [
+        MatrixQuestionType.translation_originals,
+      ].contains(this);
+
+  bool get imageCards => [
+        MatrixQuestionType.original_images,
+        MatrixQuestionType.audio_images,
+      ].contains(this);
+}
+
+/// Generates a matrix question:
+/// - shows N x N cards (from the pack pool)
+/// - shows a target word/audio under the matrix
 /// - user must click the matching card
 ///
 /// The question is multi-step on the client side: after a correct click,
-/// the card disappears and a new target word is selected from remaining cards.
+/// the card flips and a new target is shown from stages array.
-/// Backend only provides the initial target via [word] + [answer].
+/// Backend generates all stages upfront.
 class MatrixQuestionGenerator implements QuestionGenerator {
   MatrixQuestionGenerator(
     this.data, {
     this.seed,
     this.allowedSizes = const [2, 3, 4],
     this.fixedMatrixSize,
+    this.possibleTypes,
   }) : random = Random(seed);
 
   final CreationTestData data;
@@ -32,11 +71,55 @@ class MatrixQuestionGenerator implements QuestionGenerator {
   /// items exist).
   final int? fixedMatrixSize;
 
+  /// Allowed question types. If null, all types are allowed.
+  final Set<MatrixQuestionType>? possibleTypes;
+
+  // UUID regex pattern (same as in simple_question_generator.dart)
+  static final _uuidRegex = RegExp(
+    r'^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$',
+    caseSensitive: false,
+  );
+
   String? _imageIdToUrl(String? imageId) {
     if (imageId == null || data.packId == null) return imageId;
     return '/api/v2/packs/${data.packId}/cards/$imageId/image';
   }
 
+  /// Checks if a string is a valid UUID
+  bool _isUuid(String value) => _uuidRegex.hasMatch(value.trim());
+
+  /// Gets audio UUID from answerCard.audio if it's a valid UUID, otherwise returns null
+  String? _getAudioUuid(TestDataItem answerCard) {
+    final audioValue = answerCard.audio;
+    if (audioValue == null || audioValue.trim().isEmpty) return null;
+    return _isUuid(audioValue) ? audioValue.trim() : null;
+  }
+
+  MatrixQuestionType _getRandomQuestionType({
+    required List<TestDataItem> selectedCards,
+  }) {
+    var types = (possibleTypes?.toList() ?? MatrixQuestionType.values);
+
+    // Check if we have audio available
+    final hasAudio = selectedCards.any((card) => _getAudioUuid(card) != null);
+    if (!hasAudio) {
+      types = types.where((type) => !type.audioTarget).toList();
+    }
+
+    // Check if we have images available
+    final hasImages = selectedCards.any((card) => card.image != null);
+    if (!hasImages) {
+      types = types.where((type) => !type.imageCards).toList();
+    }
+
+    // If no types available, fallback to original_translation
+    if (types.isEmpty) {
+      return MatrixQuestionType.original_translation;
+    }
+
+    return types[random.nextInt(types.length)];
+  }
+
   int _maxPossibleSize(int poolSize) {
     if (poolSize <= 0) return 0;
     return sqrt(poolSize).floor();
@@ -57,6 +140,40 @@ class MatrixQuestionGenerator implements QuestionGenerator {
     return allowed[random.nextInt(allowed.length)];
   }
 
+  List<MatrixStageDto> _generateStages(
+    List<TestDataItem> selectedCards,
+    MatrixQuestionType questionType,
+  ) {
+    final stages = <MatrixStageDto>[];
+    final shuffled = List<TestDataItem>.from(selectedCards)..shuffle(random);
+
+    for (final card in shuffled) {
+      String targetWord;
+      String? targetAudio;
+
+      if (questionType.originalTarget) {
+        targetWord = card.original;
+      } else if (questionType.translationTarget) {
+        targetWord = card.translation;
+      } else if (questionType.audioTarget) {
+        targetWord = card.original; // fallback text
+        targetAudio = _getAudioUuid(card);
+      } else {
+        targetWord = card.original; // fallback
+      }
+
+      stages.add(
+        MatrixStageDto(
+          targetCardId: card.id,
+          targetWord: targetWord,
+          targetAudio: targetAudio,
+        ),
+      );
+    }
+
+    return stages;
+  }
+
   @override
   Future<AbstractTestQuestion> generate(TestDataItem answerCard) async {
     final pool = data.items;
@@ -73,23 +190,58 @@ class MatrixQuestionGenerator implements QuestionGenerator {
 
     final selected = <TestDataItem>[answerCard, ...others]..shuffle(random);
 
-    final cards = selected
+    // Determine question type based on available data
-        .map(
+    final questionType = _getRandomQuestionType(selectedCards: selected);
-          (c) => MatrixCardDto(
+
-            id: c.id,
+    // Generate stages for all cards
-            image: _imageIdToUrl(c.image) ?? c.image ?? c.id,
+    final stages = _generateStages(selected, questionType);
-            original: c.original,
+
-            translation: c.translation,
+    // Create cards based on question type
-          ),
+    final cards = selected.map((c) {
-        )
+      if (questionType.translationCards) {
-        .toList();
+        return MatrixCardDto(
+          id: c.id,
+          translation: c.translation,
+          // Don't include image or original for translation cards
+        );
+      } else if (questionType.originalCards) {
+        return MatrixCardDto(
+          id: c.id,
+          original: c.original,
+          // Don't include image or translation for original cards
+        );
+      } else if (questionType.imageCards) {
+        return MatrixCardDto(
+          id: c.id,
+          image: _imageIdToUrl(c.image) ?? c.image ?? c.id,
+          // Don't include text for image cards
+        );
+      } else {
+        // Fallback: include all fields
+        return MatrixCardDto(
+          id: c.id,
+          image: _imageIdToUrl(c.image) ?? c.image ?? c.id,
+          original: c.original,
+          translation: c.translation,
+        );
+      }
+    }).toList();
+
+    // Get first stage for backward compatibility
+    final firstStage = stages.isNotEmpty ? stages.first : MatrixStageDto(
+      targetCardId: answerCard.id,
+      targetWord: answerCard.original,
+      targetAudio: null,
+    );
 
     return MatrixTestQuestionBody(
       matrixSize: matrixSize,
       cards: cards,
-      // First step: target is the provided answerCard.
+      stages: stages,
-      word: answerCard.original,
+      // Backward compatibility fields
-      answer: answerCard.id,
+      word: firstStage.targetWord,
+      answer: firstStage.targetCardId,
+      text: 'Найди слово:',
     );
   }
 }

mnemo_cards_backend/lib/tests/generators/question_generators/simple_question_generator.dart

@@ -37,8 +37,24 @@ class SimpleQuestionGenerator implements QuestionGenerator {
     return '/api/v2/packs/${data.packId}/cards/$imageId/image';
   }
 
-  SimpleQuestionType _getRandomQuestionType() {
+  SimpleQuestionType _getRandomQuestionType({bool excludeAudioTypes = false}) {
-    final types = (possibleTypes?.toList() ?? SimpleQuestionType.values);
+    var types = (possibleTypes?.toList() ?? SimpleQuestionType.values);
+    
+    // Exclude audio types if audio is not available
+    if (excludeAudioTypes) {
+      types = types.where((type) => !type.audioQuestion).toList();
+    }
+    
+    // If no types available, fallback to non-audio types
+    if (types.isEmpty) {
+      types = SimpleQuestionType.values.where((type) => !type.audioQuestion).toList();
+    }
+    
+    // If still empty, use original_translation as fallback
+    if (types.isEmpty) {
+      return SimpleQuestionType.original_translation;
+    }
+    
     return types[random.nextInt(types.length)];
   }
 
@@ -62,28 +78,38 @@ class SimpleQuestionGenerator implements QuestionGenerator {
         (data.items.where((element) => element.id != answerCard.id).toList()
               ..shuffle())
             .take(3);
+    
+    // Check if audio is available before selecting question type
+    final hasAudio = _getAudioUuid(answerCard) != null;
+    
     // mb use custom ids
-    final questionType = type ?? _getRandomQuestionType();
+    // If no type specified, select random type excluding audio types if audio is not available
-    final questionText = questionType.originalQuestion
+    final questionType = type ?? _getRandomQuestionType(excludeAudioTypes: !hasAudio);
+    
+    // If audio type was selected but audio is not available, select a different type
+    final finalQuestionType = (questionType.audioQuestion && !hasAudio)
+        ? _getRandomQuestionType(excludeAudioTypes: true)
+        : questionType;
+    final questionText = finalQuestionType.originalQuestion
         ? answerCard.original
-        : questionType.translationQuestion
+        : finalQuestionType.translationQuestion
             ? answerCard.translation
             : null;
     final questionImage =
-        questionType.imageQuestion ? _imageIdToUrl(answerCard.image) : null;
+        finalQuestionType.imageQuestion ? _imageIdToUrl(answerCard.image) : null;
     String? questionAudio = null;
-    if (questionType.audioQuestion) {
+    if (finalQuestionType.audioQuestion) {
-      if (questionType.translationAnswers || questionType.imagesAnswers) {
+      if (finalQuestionType.translationAnswers || finalQuestionType.imagesAnswers) {
         // Use UUID from MinIO if available, otherwise null
         questionAudio = _getAudioUuid(answerCard);
       }
     } else if (withAudio) {
-      if (questionText != null && questionType.originalQuestion) {
+      if (questionText != null && finalQuestionType.originalQuestion) {
         // For original questions with text, audio is handled separately
         // Use UUID if available, otherwise null
         questionAudio = _getAudioUuid(answerCard);
-      } else if (questionType.translationAnswers ||
+      } else if (finalQuestionType.translationAnswers ||
-          questionType.imagesAnswers) {
+          finalQuestionType.imagesAnswers) {
         // Use UUID from MinIO if available, otherwise null
         questionAudio = _getAudioUuid(answerCard);
       }
@@ -97,15 +123,15 @@ class SimpleQuestionGenerator implements QuestionGenerator {
       audio: questionAudio,
       word: answerCard.original,
       buttons: [
-        if (questionType.translationAnswers)
+        if (finalQuestionType.translationAnswers)
           ...answers.map(
             (e) => TestButtonDto.text(e.id, e.translation),
           )
-        else if (questionType.originalAnswers)
+        else if (finalQuestionType.originalAnswers)
           ...answers.map(
             (e) => TestButtonDto.text(e.id, e.original),
           )
-        else if (questionType.imagesAnswers)
+        else if (finalQuestionType.imagesAnswers)
           ...answers.map(
             (e) => TestButtonDto.image(e.id, _imageIdToUrl(e.image)),
           )

mnemo_cards_backend/test/tests/generators/question_generators/matrix_question_generator_test.dart

@@ -43,6 +43,7 @@ void main() {
 
       expect(mq.answer, answerCard.id);
       expect(mq.word, answerCard.original);
+      expect(mq.text, 'Найди слово:');
       expect(ids.contains(answerCard.id), isTrue);
     });
 

mnemo_cards_backend/test/tests/generators/question_generators/simple_question_generator_test.dart

@@ -0,0 +1,170 @@
+import 'package:mnemo_cards_backend/tests/generators/models/creation_test_data.dart';
+import 'package:mnemo_cards_backend/tests/generators/question_generators/simple_question_generator.dart';
+import 'package:mnemo_cards_common/mnemo_cards_common.dart';
+import 'package:test/test.dart';
+
+void main() {
+  group('SimpleQuestionGenerator - audio generation', () {
+    test('generates audio question with UUID from MinIO', () async {
+      final audioUuid = '550e8400-e29b-41d4-a716-446655440000';
+      final data = CreationTestData(
+        packId: 'p1',
+        title: 'Pack',
+        color: '#fff',
+        items: [
+          TestDataItem(
+            id: 'card_1',
+            original: 'la Gama',
+            translation: 'Лань',
+            image: 'card_1',
+            audio: audioUuid, // UUID from MinIO
+          ),
+          TestDataItem(
+            id: 'card_2',
+            original: 'el Cerdo',
+            translation: 'Свинья',
+            image: 'card_2',
+            audio: 'not-a-uuid', // Not a UUID, should be ignored
+          ),
+          TestDataItem(
+            id: 'card_3',
+            original: 'la Cabra',
+            translation: 'Коза',
+            image: 'card_3',
+            audio: null, // No audio
+          ),
+          TestDataItem(
+            id: 'card_4',
+            original: 'el Pescado',
+            translation: 'Рыба',
+            image: 'card_4',
+            audio: 'another-uuid-not-valid', // Not a valid UUID format
+          ),
+        ],
+      );
+
+      final generator = SimpleQuestionGenerator(
+        data,
+        seed: 1,
+        possibleTypes: {
+          SimpleQuestionType.audio_translation,
+        },
+      );
+
+      final answerCard = data.items.first; // card_1 with UUID audio
+      final q = await generator.generate(answerCard);
+
+      expect(q, isA<SimpleTestQuestionBody>());
+      final sq = q as SimpleTestQuestionBody;
+
+      // For audio_translation type, audio should be the UUID
+      expect(sq.audio, equals(audioUuid));
+      expect(sq.text, isNull); // No text for audio questions
+      expect(sq.word, equals('la Gama'));
+    });
+
+    test('generates audio question with null when audio is not UUID', () async {
+      final data = CreationTestData(
+        packId: 'p1',
+        title: 'Pack',
+        color: '#fff',
+        items: [
+          TestDataItem(
+            id: 'card_1',
+            original: 'la Gama',
+            translation: 'Лань',
+            image: 'card_1',
+            audio: 'es-ES_la Gama', // Old format, not UUID
+          ),
+        ],
+      );
+
+      final generator = SimpleQuestionGenerator(
+        data,
+        seed: 1,
+        possibleTypes: {
+          SimpleQuestionType.audio_translation,
+        },
+      );
+
+      final answerCard = data.items.first;
+      final q = await generator.generate(answerCard);
+
+      expect(q, isA<SimpleTestQuestionBody>());
+      final sq = q as SimpleTestQuestionBody;
+
+      // Should be null since audio is not a valid UUID
+      expect(sq.audio, isNull);
+    });
+
+    test('generates audio question with null when audio is null', () async {
+      final data = CreationTestData(
+        packId: 'p1',
+        title: 'Pack',
+        color: '#fff',
+        items: [
+          TestDataItem(
+            id: 'card_1',
+            original: 'la Gama',
+            translation: 'Лань',
+            image: 'card_1',
+            audio: null, // No audio
+          ),
+        ],
+      );
+
+      final generator = SimpleQuestionGenerator(
+        data,
+        seed: 1,
+        possibleTypes: {
+          SimpleQuestionType.audio_translation,
+        },
+      );
+
+      final answerCard = data.items.first;
+      final q = await generator.generate(answerCard);
+
+      expect(q, isA<SimpleTestQuestionBody>());
+      final sq = q as SimpleTestQuestionBody;
+
+      // Should be null when audio is null
+      expect(sq.audio, isNull);
+    });
+
+    test('generates audio_images question with UUID', () async {
+      final audioUuid = '660e8400-e29b-41d4-a716-446655440000';
+      final data = CreationTestData(
+        packId: 'p1',
+        title: 'Pack',
+        color: '#fff',
+        items: [
+          TestDataItem(
+            id: 'card_1',
+            original: 'la Gama',
+            translation: 'Лань',
+            image: 'card_1',
+            audio: audioUuid,
+          ),
+        ],
+      );
+
+      final generator = SimpleQuestionGenerator(
+        data,
+        seed: 1,
+        possibleTypes: {
+          SimpleQuestionType.audio_images,
+        },
+      );
+
+      final answerCard = data.items.first;
+      final q = await generator.generate(answerCard);
+
+      expect(q, isA<SimpleTestQuestionBody>());
+      final sq = q as SimpleTestQuestionBody;
+
+      // For audio_images type, audio should be the UUID
+      expect(sq.audio, equals(audioUuid));
+      expect(sq.text, isNull); // No text for audio questions
+    });
+  });
+}

mnemo_cards_backend/test/tests/test_manager_image_conversion_test.dart

@@ -0,0 +1,305 @@
+import 'dart:io';
+
+import 'package:drift/drift.dart' hide isNull;
+import 'package:mnemo_cards_backend/database/database.dart';
+import 'package:mnemo_cards_backend/storage/minio_service.dart';
+import 'package:mnemo_cards_backend/tests/test_manager.dart';
+import 'package:mnemo_cards_common/mnemo_cards_common.dart';
+import 'package:mnemo_cards_common_backend/mnemo_cards_common_backend.dart';
+import 'package:test/test.dart';
+
+void main() {
+  late AppDatabase db;
+  late TestManager testManager;
+  late MinioService minioService;
+
+  setUpAll(() async {
+    final host = Platform.environment['TEST_DB_HOST'] ?? 'localhost';
+    final port =
+        int.tryParse(Platform.environment['TEST_DB_PORT'] ?? '5432') ?? 5432;
+    final database =
+        Platform.environment['TEST_DB_NAME'] ?? 'mnemo_cards_test';
+    final username = Platform.environment['TEST_DB_USER'] ??
+        Platform.environment['DB_USER'] ??
+        'mnemo_user';
+    final password = Platform.environment['TEST_DB_PASSWORD'] ??
+        Platform.environment['DB_PASSWORD'] ??
+        '';
+
+    db = AppDatabase.connect(
+      host: host,
+      port: port,
+      database: database,
+      username: username,
+      password: password,
+    );
+
+    await db.customStatement('CREATE EXTENSION IF NOT EXISTS pgcrypto');
+    await Migrator(db).createAll();
+
+    // Initialize MinioService
+    final minioEndpoint = Platform.environment['MINIO_ENDPOINT'] ?? 
+                         'localhost:9000';
+    final minioAccessKey = Platform.environment['MINIO_ACCESS_KEY'] ?? 
+                          'minioadmin';
+    final minioSecretKey = Platform.environment['MINIO_SECRET_KEY'] ?? 
+                          'minioadmin';
+    
+    minioService = MinioService(
+      endpoint: minioEndpoint,
+      accessKey: minioAccessKey,
+      secretKey: minioSecretKey,
+      useSSL: false,
+    );
+
+    testManager = TestManager(db, minioService);
+  });
+
+  tearDownAll(() async {
+    await db.close();
+  });
+
+  group('TestManager image conversion', () {
+    String? packId;
+    String? cardId;
+    String? testId;
+
+    tearDown(() async {
+      // Cleanup
+      if (testId != null) {
+        await (db.delete(db.tests)..where((t) => t.id.equals(testId!))).go();
+        testId = null;
+      }
+      if (packId != null) {
+        await (db.delete(db.cardPacks)..where((p) => p.id.equals(packId!)))
+            .go();
+        packId = null;
+      }
+      if (cardId != null) {
+        await (db.delete(db.gameCards)..where((c) => c.id.equals(cardId!)))
+            .go();
+        cardId = null;
+      }
+    });
+
+    test('matrix question buttons should have imageUrl from card images', 
+        () async {
+      // Create pack
+      packId = await db.packDao.createPack(
+        CardPacksCompanion.insert(
+          title: 'Test Pack',
+          subtitle: 'subtitle',
+          size: 1,
+        ),
+      );
+
+      // Create card with image (using UUID as objectId in MinIO)
+      const imageObjectId = '12345678-1234-1234-1234-123456789abc';
+      cardId = await db.packDao.createCard(
+        GameCardsCompanion.insert(
+          original: 'perro',
+          translation: 'dog',
+          image: imageObjectId,
+        ),
+      );
+
+      await db.packDao.addCardToPack(
+        packId: packId!,
+        cardId: cardId!,
+        order: 0,
+      );
+
+      // Create test with matrix question (without buttons - they'll be generated)
+      testId = await db.testDao.createTest(
+        TestsCompanion.insert(
+          name: 'Matrix Test',
+          color: const Value('#ff0000'),
+          version: const Value('1.0'),
+        ),
+      );
+
+      await db.testDao.linkTestToPack(testId!, packId!);
+
+      // Create matrix question without buttons
+      await db.testDao.createTestQuestion(
+        TestQuestionsCompanion.insert(
+          testId: testId!,
+          orderIndex: const Value(0),
+          questionType: TestQuestionType.matrix.name,
+          word: 'test',
+          answer: '',
+          options: const Value('[]'), // Empty buttons - will be generated
+          uiData: const Value('{"matrixSize": 1}'),
+        ),
+      );
+
+      // Fetch test
+      final user = UserModel(id: 'test-user');
+      final result = await testManager.fetchTest(testId!, user);
+
+      expect(result, isNotNull);
+      expect(result!.questions, hasLength(1));
+      
+      final question = result.questions.first;
+      expect(question.questionType, equals(TestQuestionType.matrix));
+      
+      // Check buttons
+      if (question is MatrixTestQuestion) {
+        expect(question.buttons, hasLength(1));
+        
+        final button = question.buttons.first;
+        expect(button.id, equals(cardId));
+        expect(button.image, equals(imageObjectId));
+        expect(button.imageUrl, isNotNull);
+        expect(button.imageUrl, isNot(equals(imageObjectId)));
+        // imageUrl should be a presigned URL or API endpoint
+        expect(
+          button.imageUrl, 
+          anyOf(
+            startsWith('http'),
+            startsWith('/api/v2/packs'),
+          ),
+        );
+      } else {
+        fail('Expected MatrixTestQuestion');
+      }
+    });
+
+    test('test question with image should have imageUrl', () async {
+      // Create pack
+      packId = await db.packDao.createPack(
+        CardPacksCompanion.insert(
+          title: 'Test Pack',
+          subtitle: 'subtitle',
+          size: 1,
+        ),
+      );
+
+      // Create card (needed for question buttons)
+      cardId = await db.packDao.createCard(
+        GameCardsCompanion.insert(
+          original: 'perro',
+          translation: 'dog',
+          image: 'test.jpg',
+        ),
+      );
+
+      await db.packDao.addCardToPack(
+        packId: packId!,
+        cardId: cardId!,
+        order: 0,
+      );
+
+      // Create test with input_buttons question
+      testId = await db.testDao.createTest(
+        TestsCompanion.insert(
+          name: 'Input Test',
+          color: const Value('#ff0000'),
+          version: const Value('1.0'),
+        ),
+      );
+
+      await db.testDao.linkTestToPack(testId!, packId!);
+
+      const imageObjectId = '87654321-4321-4321-4321-cba987654321';
+      
+      // Create question with image
+      await db.testDao.createTestQuestion(
+        TestQuestionsCompanion.insert(
+          testId: testId!,
+          orderIndex: const Value(0),
+          questionType: TestQuestionType.input_buttons.name,
+          word: 'perro',
+          answer: 'perro',
+          options: const Value('[]'),
+          uiData: Value('{"image": "$imageObjectId", "text": "dog"}'),
+        ),
+      );
+
+      // Fetch test
+      final user = UserModel(id: 'test-user');
+      final result = await testManager.fetchTest(testId!, user);
+
+      expect(result, isNotNull);
+      expect(result!.questions, hasLength(1));
+      
+      final question = result.questions.first;
+      expect(question.questionType, equals(TestQuestionType.input_buttons));
+      
+      // Check image and imageUrl
+      if (question is InputButtonsTestQuestion) {
+        expect(question.image, equals(imageObjectId));
+        expect(question.imageUrl, isNotNull);
+        expect(question.imageUrl, isNot(equals(imageObjectId)));
+        // imageUrl should be a presigned URL
+        expect(question.imageUrl, startsWith('http'));
+      } else {
+        fail('Expected InputButtonsTestQuestion');
+      }
+    });
+
+    test('test with cover should have coverUrl', () async {
+      // Create pack
+      packId = await db.packDao.createPack(
+        CardPacksCompanion.insert(
+          title: 'Test Pack',
+          subtitle: 'subtitle',
+          size: 1,
+        ),
+      );
+
+      // Create card (needed for test generation)
+      cardId = await db.packDao.createCard(
+        GameCardsCompanion.insert(
+          original: 'perro',
+          translation: 'dog',
+          image: 'test.jpg',
+        ),
+      );
+
+      await db.packDao.addCardToPack(
+        packId: packId!,
+        cardId: cardId!,
+        order: 0,
+      );
+
+      const coverObjectId = 'aaaabbbb-cccc-dddd-eeee-ffff00001111';
+      
+      // Create test with cover
+      testId = await db.testDao.createTest(
+        TestsCompanion.insert(
+          name: 'Test with Cover',
+          color: const Value('#ff0000'),
+          version: const Value('1.0'),
+          cover: Value(coverObjectId),
+        ),
+      );
+
+      await db.testDao.linkTestToPack(testId!, packId!);
+
+      // Create a simple question
+      await db.testDao.createTestQuestion(
+        TestQuestionsCompanion.insert(
+          testId: testId!,
+          orderIndex: const Value(0),
+          questionType: TestQuestionType.simple.name,
+          word: 'test',
+          answer: 'answer',
+          options: const Value('[]'),
+          uiData: const Value('{}'),
+        ),
+      );
+
+      // Fetch test
+      final user = UserModel(id: 'test-user');
+      final result = await testManager.fetchTest(testId!, user);
+
+      expect(result, isNotNull);
+      expect(result!.cover, equals(coverObjectId));
+      expect(result.coverUrl, isNotNull);
+      expect(result.coverUrl, isNot(equals(coverObjectId)));
+      // coverUrl should be a presigned URL
+      expect(result.coverUrl, startsWith('http'));
+    });
+  });
+}

mnemo_cards_common/lib/src/dtos/game_tests/test_bodies/matrix_test_question_body.dart

@@ -20,18 +20,29 @@ class MatrixTestQuestionBody extends AbstractTestQuestion {
   @JsonKey(name: 'buttons', defaultValue: <MatrixCardDto>[])
   final List<MatrixCardDto> cards;
 
+  /// Stages for multi-step question. Each stage defines the target word/audio
+  /// and the correct card ID.
+  @JsonKey(defaultValue: <MatrixStageDto>[])
+  final List<MatrixStageDto> stages;
+
   /// Initial correct answer (card id) for the first step.
   ///
-  /// Next steps are handled on the client side.
+  /// DEPRECATED: Use stages[0].targetCardId instead.
+  /// Kept for backward compatibility.
   @JsonKey(defaultValue: '')
   final String answer;
 
+  /// Question text (e.g., "Найди слово:")
+  final String? text;
+
   MatrixTestQuestionBody({
     super.id,
     required this.matrixSize,
     required this.cards,
+    this.stages = const [],
     required this.answer,
     required super.word,
+    this.text,
     super.questionType = TestQuestionType.matrix,
   });
 
@@ -42,21 +53,40 @@ class MatrixTestQuestionBody extends AbstractTestQuestion {
   Map<String, Object?> toJson() => _$MatrixTestQuestionBodyToJson(this);
 }
 
+@JsonSerializable()
+@CopyWith()
+class MatrixStageDto {
+  final String targetCardId;
+  final String targetWord;
+  final String? targetAudio;
+
+  const MatrixStageDto({
+    required this.targetCardId,
+    required this.targetWord,
+    this.targetAudio,
+  });
+
+  factory MatrixStageDto.fromJson(Map<String, dynamic> json) =>
+      _$MatrixStageDtoFromJson(json);
+
+  Map<String, Object?> toJson() => _$MatrixStageDtoToJson(this);
+}
+
 @JsonSerializable()
 @CopyWith()
 class MatrixCardDto {
   final String id;
-  final String image; // Object ID in MinIO (for admin)
+  final String? image; // Object ID in MinIO (for admin)
   final String? imageUrl; // Presigned URL (for display)
-  final String original;
+  final String? original;
-  final String translation;
+  final String? translation;
 
   const MatrixCardDto({
     required this.id,
-    required this.image,
+    this.image,
     this.imageUrl,
-    required this.original,
+    this.original,
-    required this.translation,
+    this.translation,
   });
 
   factory MatrixCardDto.fromJson(Map<String, dynamic> json) =>

mnemo_cards_common/lib/src/dtos/game_tests/test_bodies/matrix_test_question_body.g.dart

@@ -13,10 +13,14 @@ abstract class _$MatrixTestQuestionBodyCWProxy {
 
   MatrixTestQuestionBody cards(List<MatrixCardDto> cards);
 
+  MatrixTestQuestionBody stages(List<MatrixStageDto> stages);
+
   MatrixTestQuestionBody answer(String answer);
 
   MatrixTestQuestionBody word(String word);
 
+  MatrixTestQuestionBody text(String? text);
+
   MatrixTestQuestionBody questionType(TestQuestionType questionType);
 
   /// Creates a new instance with the provided field values.
@@ -30,8 +34,10 @@ abstract class _$MatrixTestQuestionBodyCWProxy {
     String? id,
     int matrixSize,
     List<MatrixCardDto> cards,
+    List<MatrixStageDto> stages,
     String answer,
     String word,
+    String? text,
     TestQuestionType questionType,
   });
 }
@@ -54,12 +60,19 @@ class _$MatrixTestQuestionBodyCWProxyImpl
   @override
   MatrixTestQuestionBody cards(List<MatrixCardDto> cards) => call(cards: cards);
 
+  @override
+  MatrixTestQuestionBody stages(List<MatrixStageDto> stages) =>
+      call(stages: stages);
+
   @override
   MatrixTestQuestionBody answer(String answer) => call(answer: answer);
 
   @override
   MatrixTestQuestionBody word(String word) => call(word: word);
 
+  @override
+  MatrixTestQuestionBody text(String? text) => call(text: text);
+
   @override
   MatrixTestQuestionBody questionType(TestQuestionType questionType) =>
       call(questionType: questionType);
@@ -76,8 +89,10 @@ class _$MatrixTestQuestionBodyCWProxyImpl
     Object? id = const $CopyWithPlaceholder(),
     Object? matrixSize = const $CopyWithPlaceholder(),
     Object? cards = const $CopyWithPlaceholder(),
+    Object? stages = const $CopyWithPlaceholder(),
     Object? answer = const $CopyWithPlaceholder(),
     Object? word = const $CopyWithPlaceholder(),
+    Object? text = const $CopyWithPlaceholder(),
     Object? questionType = const $CopyWithPlaceholder(),
   }) {
     return MatrixTestQuestionBody(
@@ -94,6 +109,10 @@ class _$MatrixTestQuestionBodyCWProxyImpl
           ? _value.cards
           // ignore: cast_nullable_to_non_nullable
           : cards as List<MatrixCardDto>,
+      stages: stages == const $CopyWithPlaceholder() || stages == null
+          ? _value.stages
+          // ignore: cast_nullable_to_non_nullable
+          : stages as List<MatrixStageDto>,
       answer: answer == const $CopyWithPlaceholder() || answer == null
           ? _value.answer
           // ignore: cast_nullable_to_non_nullable
@@ -102,6 +121,10 @@ class _$MatrixTestQuestionBodyCWProxyImpl
           ? _value.word
           // ignore: cast_nullable_to_non_nullable
           : word as String,
+      text: text == const $CopyWithPlaceholder()
+          ? _value.text
+          // ignore: cast_nullable_to_non_nullable
+          : text as String?,
       questionType:
           questionType == const $CopyWithPlaceholder() || questionType == null
           ? _value.questionType
@@ -119,16 +142,94 @@ extension $MatrixTestQuestionBodyCopyWith on MatrixTestQuestionBody {
       _$MatrixTestQuestionBodyCWProxyImpl(this);
 }
 
+abstract class _$MatrixStageDtoCWProxy {
+  MatrixStageDto targetCardId(String targetCardId);
+
+  MatrixStageDto targetWord(String targetWord);
+
+  MatrixStageDto targetAudio(String? targetAudio);
+
+  /// Creates a new instance with the provided field values.
+  /// Passing `null` to a nullable field nullifies it, while `null` for a non-nullable field is ignored. To update a single field use `MatrixStageDto(...).copyWith.fieldName(value)`.
+  ///
+  /// Example:
+  /// ```dart
+  /// MatrixStageDto(...).copyWith(id: 12, name: "My name")
+  /// ```
+  MatrixStageDto call({
+    String targetCardId,
+    String targetWord,
+    String? targetAudio,
+  });
+}
+
+/// Callable proxy for `copyWith` functionality.
+/// Use as `instanceOfMatrixStageDto.copyWith(...)` or call `instanceOfMatrixStageDto.copyWith.fieldName(value)` for a single field.
+class _$MatrixStageDtoCWProxyImpl implements _$MatrixStageDtoCWProxy {
+  const _$MatrixStageDtoCWProxyImpl(this._value);
+
+  final MatrixStageDto _value;
+
+  @override
+  MatrixStageDto targetCardId(String targetCardId) =>
+      call(targetCardId: targetCardId);
+
+  @override
+  MatrixStageDto targetWord(String targetWord) => call(targetWord: targetWord);
+
+  @override
+  MatrixStageDto targetAudio(String? targetAudio) =>
+      call(targetAudio: targetAudio);
+
+  @override
+  /// Creates a new instance with the provided field values.
+  /// Passing `null` to a nullable field nullifies it, while `null` for a non-nullable field is ignored. To update a single field use `MatrixStageDto(...).copyWith.fieldName(value)`.
+  ///
+  /// Example:
+  /// ```dart
+  /// MatrixStageDto(...).copyWith(id: 12, name: "My name")
+  /// ```
+  MatrixStageDto call({
+    Object? targetCardId = const $CopyWithPlaceholder(),
+    Object? targetWord = const $CopyWithPlaceholder(),
+    Object? targetAudio = const $CopyWithPlaceholder(),
+  }) {
+    return MatrixStageDto(
+      targetCardId:
+          targetCardId == const $CopyWithPlaceholder() || targetCardId == null
+          ? _value.targetCardId
+          // ignore: cast_nullable_to_non_nullable
+          : targetCardId as String,
+      targetWord:
+          targetWord == const $CopyWithPlaceholder() || targetWord == null
+          ? _value.targetWord
+          // ignore: cast_nullable_to_non_nullable
+          : targetWord as String,
+      targetAudio: targetAudio == const $CopyWithPlaceholder()
+          ? _value.targetAudio
+          // ignore: cast_nullable_to_non_nullable
+          : targetAudio as String?,
+    );
+  }
+}
+
+extension $MatrixStageDtoCopyWith on MatrixStageDto {
+  /// Returns a callable class used to build a new instance with modified fields.
+  /// Example: `instanceOfMatrixStageDto.copyWith(...)` or `instanceOfMatrixStageDto.copyWith.fieldName(...)`.
+  // ignore: library_private_types_in_public_api
+  _$MatrixStageDtoCWProxy get copyWith => _$MatrixStageDtoCWProxyImpl(this);
+}
+
 abstract class _$MatrixCardDtoCWProxy {
   MatrixCardDto id(String id);
 
-  MatrixCardDto image(String image);
+  MatrixCardDto image(String? image);
 
   MatrixCardDto imageUrl(String? imageUrl);
 
-  MatrixCardDto original(String original);
+  MatrixCardDto original(String? original);
 
-  MatrixCardDto translation(String translation);
+  MatrixCardDto translation(String? translation);
 
   /// Creates a new instance with the provided field values.
   /// Passing `null` to a nullable field nullifies it, while `null` for a non-nullable field is ignored. To update a single field use `MatrixCardDto(...).copyWith.fieldName(value)`.
@@ -139,10 +240,10 @@ abstract class _$MatrixCardDtoCWProxy {
   /// ```
   MatrixCardDto call({
     String id,
-    String image,
+    String? image,
     String? imageUrl,
-    String original,
+    String? original,
-    String translation,
+    String? translation,
   });
 }
 
@@ -157,16 +258,16 @@ class _$MatrixCardDtoCWProxyImpl implements _$MatrixCardDtoCWProxy {
   MatrixCardDto id(String id) => call(id: id);
 
   @override
-  MatrixCardDto image(String image) => call(image: image);
+  MatrixCardDto image(String? image) => call(image: image);
 
   @override
   MatrixCardDto imageUrl(String? imageUrl) => call(imageUrl: imageUrl);
 
   @override
-  MatrixCardDto original(String original) => call(original: original);
+  MatrixCardDto original(String? original) => call(original: original);
 
   @override
-  MatrixCardDto translation(String translation) =>
+  MatrixCardDto translation(String? translation) =>
       call(translation: translation);
 
   @override
@@ -189,23 +290,22 @@ class _$MatrixCardDtoCWProxyImpl implements _$MatrixCardDtoCWProxy {
           ? _value.id
           // ignore: cast_nullable_to_non_nullable
           : id as String,
-      image: image == const $CopyWithPlaceholder() || image == null
+      image: image == const $CopyWithPlaceholder()
           ? _value.image
           // ignore: cast_nullable_to_non_nullable
-          : image as String,
+          : image as String?,
       imageUrl: imageUrl == const $CopyWithPlaceholder()
           ? _value.imageUrl
           // ignore: cast_nullable_to_non_nullable
           : imageUrl as String?,
-      original: original == const $CopyWithPlaceholder() || original == null
+      original: original == const $CopyWithPlaceholder()
           ? _value.original
           // ignore: cast_nullable_to_non_nullable
-          : original as String,
+          : original as String?,
-      translation:
+      translation: translation == const $CopyWithPlaceholder()
-          translation == const $CopyWithPlaceholder() || translation == null
           ? _value.translation
           // ignore: cast_nullable_to_non_nullable
-          : translation as String,
+          : translation as String?,
     );
   }
 }
@@ -231,8 +331,14 @@ MatrixTestQuestionBody _$MatrixTestQuestionBodyFromJson(
           ?.map((e) => MatrixCardDto.fromJson(e as Map<String, dynamic>))
           .toList() ??
       [],
+  stages:
+      (json['stages'] as List<dynamic>?)
+          ?.map((e) => MatrixStageDto.fromJson(e as Map<String, dynamic>))
+          .toList() ??
+      [],
   answer: json['answer'] as String? ?? '',
   word: json['word'] as String,
+  text: json['text'] as String?,
   questionType:
       $enumDecodeNullable(_$TestQuestionTypeEnumMap, json['questionType']) ??
       TestQuestionType.matrix,
@@ -246,7 +352,9 @@ Map<String, dynamic> _$MatrixTestQuestionBodyToJson(
   'word': instance.word,
   'matrixSize': instance.matrixSize,
   'buttons': instance.cards.map((e) => e.toJson()).toList(),
+  'stages': instance.stages.map((e) => e.toJson()).toList(),
   'answer': instance.answer,
+  'text': ?instance.text,
 };
 
 const _$TestQuestionTypeEnumMap = {
@@ -257,13 +365,27 @@ const _$TestQuestionTypeEnumMap = {
   TestQuestionType.undefined: 'undefined',
 };
 
+MatrixStageDto _$MatrixStageDtoFromJson(Map<String, dynamic> json) =>
+    MatrixStageDto(
+      targetCardId: json['targetCardId'] as String,
+      targetWord: json['targetWord'] as String,
+      targetAudio: json['targetAudio'] as String?,
+    );
+
+Map<String, dynamic> _$MatrixStageDtoToJson(MatrixStageDto instance) =>
+    <String, dynamic>{
+      'targetCardId': instance.targetCardId,
+      'targetWord': instance.targetWord,
+      'targetAudio': instance.targetAudio,
+    };
+
 MatrixCardDto _$MatrixCardDtoFromJson(Map<String, dynamic> json) =>
     MatrixCardDto(
       id: json['id'] as String,
-      image: json['image'] as String,
+      image: json['image'] as String?,
       imageUrl: json['imageUrl'] as String?,
-      original: json['original'] as String,
+      original: json['original'] as String?,
-      translation: json['translation'] as String,
+      translation: json['translation'] as String?,
     );
 
 Map<String, dynamic> _$MatrixCardDtoToJson(MatrixCardDto instance) =>

mnemo_cards_web_v2/lib/domain/models/game_question.dart

@@ -115,21 +115,24 @@ abstract class MatchPair with _$MatchPair {
       _$MatchPairFromJson(json);
 }
 
-/// Matrix question - user selects a card from an image matrix
+/// Matrix question - user selects a card from a matrix
 ///
-/// UI: a matrix of images (N x N) + current target word (original) under it.
+/// UI: a matrix of cards (N x N) + current target word/audio under it.
 /// The question is multi-step on a single screen: after each correct selection
-/// the chosen card flips (showing translation) and disappears, then a new
+/// the chosen card flips and a new target is shown from stages array until
-/// target word is shown until all cards are removed.
+/// all cards are processed.
 @freezed
 abstract class MatrixQuestion with _$MatrixQuestion {
   const factory MatrixQuestion({
     required String id,
     required int matrixSize,
     required List<MatrixCard> cards,
-    required String initialTargetCardId,
+    @Default([]) List<MatrixStage> stages,
-    required String initialTargetWord,
+    // DEPRECATED: Use stages[0] instead. Kept for backward compatibility.
+    @Deprecated('Use stages[0] instead') String? initialTargetCardId,
+    @Deprecated('Use stages[0] instead') String? initialTargetWord,
     required String word,
+    String? text,
     @Default('matrix') String type,
   }) = _MatrixQuestion;
 
@@ -137,13 +140,25 @@ abstract class MatrixQuestion with _$MatrixQuestion {
       _$MatrixQuestionFromJson(json);
 }
 
+@freezed
+abstract class MatrixStage with _$MatrixStage {
+  const factory MatrixStage({
+    required String targetCardId,
+    required String targetWord,
+    String? targetAudio,
+  }) = _MatrixStage;
+
+  factory MatrixStage.fromJson(Map<String, dynamic> json) =>
+      _$MatrixStageFromJson(json);
+}
+
 @freezed
 abstract class MatrixCard with _$MatrixCard {
   const factory MatrixCard({
     required String id,
-    required String image,
+    String? image,
-    required String original,
+    String? original,
-    required String translation,
+    String? translation,
   }) = _MatrixCard;
 
   factory MatrixCard.fromJson(Map<String, dynamic> json) =>

mnemo_cards_web_v2/lib/domain/models/game_question.freezed.dart

@@ -2262,7 +2262,8 @@ as String,
 /// @nodoc
 mixin _$MatrixQuestion {
 
- String get id; int get matrixSize; List<MatrixCard> get cards; String get initialTargetCardId; String get initialTargetWord; String get word; String get type;
+ String get id; int get matrixSize; List<MatrixCard> get cards; List<MatrixStage> get stages;// DEPRECATED: Use stages[0] instead. Kept for backward compatibility.
+@Deprecated('Use stages[0] instead') String? get initialTargetCardId;@Deprecated('Use stages[0] instead') String? get initialTargetWord; String get word; String? get text; String get type;
 /// Create a copy of MatrixQuestion
 /// with the given fields replaced by the non-null parameter values.
 @JsonKey(includeFromJson: false, includeToJson: false)
@@ -2275,16 +2276,16 @@ $MatrixQuestionCopyWith<MatrixQuestion> get copyWith => _$MatrixQuestionCopyWith
 
 @override
 bool operator ==(Object other) {
-  return identical(this, other) || (other.runtimeType == runtimeType&&other is MatrixQuestion&&(identical(other.id, id) || other.id == id)&&(identical(other.matrixSize, matrixSize) || other.matrixSize == matrixSize)&&const DeepCollectionEquality().equals(other.cards, cards)&&(identical(other.initialTargetCardId, initialTargetCardId) || other.initialTargetCardId == initialTargetCardId)&&(identical(other.initialTargetWord, initialTargetWord) || other.initialTargetWord == initialTargetWord)&&(identical(other.word, word) || other.word == word)&&(identical(other.type, type) || other.type == type));
+  return identical(this, other) || (other.runtimeType == runtimeType&&other is MatrixQuestion&&(identical(other.id, id) || other.id == id)&&(identical(other.matrixSize, matrixSize) || other.matrixSize == matrixSize)&&const DeepCollectionEquality().equals(other.cards, cards)&&const DeepCollectionEquality().equals(other.stages, stages)&&(identical(other.initialTargetCardId, initialTargetCardId) || other.initialTargetCardId == initialTargetCardId)&&(identical(other.initialTargetWord, initialTargetWord) || other.initialTargetWord == initialTargetWord)&&(identical(other.word, word) || other.word == word)&&(identical(other.text, text) || other.text == text)&&(identical(other.type, type) || other.type == type));
 }
 
 @JsonKey(includeFromJson: false, includeToJson: false)
 @override
-int get hashCode => Object.hash(runtimeType,id,matrixSize,const DeepCollectionEquality().hash(cards),initialTargetCardId,initialTargetWord,word,type);
+int get hashCode => Object.hash(runtimeType,id,matrixSize,const DeepCollectionEquality().hash(cards),const DeepCollectionEquality().hash(stages),initialTargetCardId,initialTargetWord,word,text,type);
 
 @override
 String toString() {
-  return 'MatrixQuestion(id: $id, matrixSize: $matrixSize, cards: $cards, initialTargetCardId: $initialTargetCardId, initialTargetWord: $initialTargetWord, word: $word, type: $type)';
+  return 'MatrixQuestion(id: $id, matrixSize: $matrixSize, cards: $cards, stages: $stages, initialTargetCardId: $initialTargetCardId, initialTargetWord: $initialTargetWord, word: $word, text: $text, type: $type)';
 }
 
 
@@ -2295,7 +2296,7 @@ abstract mixin class $MatrixQuestionCopyWith<$Res>  {
   factory $MatrixQuestionCopyWith(MatrixQuestion value, $Res Function(MatrixQuestion) _then) = _$MatrixQuestionCopyWithImpl;
 @useResult
 $Res call({
- String id, int matrixSize, List<MatrixCard> cards, String initialTargetCardId, String initialTargetWord, String word, String type
+ String id, int matrixSize, List<MatrixCard> cards, List<MatrixStage> stages,@Deprecated('Use stages[0] instead') String? initialTargetCardId,@Deprecated('Use stages[0] instead') String? initialTargetWord, String word, String? text, String type
 });
 
 
@@ -2312,15 +2313,17 @@ class _$MatrixQuestionCopyWithImpl<$Res>
 
 /// Create a copy of MatrixQuestion
 /// with the given fields replaced by the non-null parameter values.
-@pragma('vm:prefer-inline') @override $Res call({Object? id = null,Object? matrixSize = null,Object? cards = null,Object? initialTargetCardId = null,Object? initialTargetWord = null,Object? word = null,Object? type = null,}) {
+@pragma('vm:prefer-inline') @override $Res call({Object? id = null,Object? matrixSize = null,Object? cards = null,Object? stages = null,Object? initialTargetCardId = freezed,Object? initialTargetWord = freezed,Object? word = null,Object? text = freezed,Object? type = null,}) {
   return _then(_self.copyWith(
 id: null == id ? _self.id : id // ignore: cast_nullable_to_non_nullable
 as String,matrixSize: null == matrixSize ? _self.matrixSize : matrixSize // ignore: cast_nullable_to_non_nullable
 as int,cards: null == cards ? _self.cards : cards // ignore: cast_nullable_to_non_nullable
-as List<MatrixCard>,initialTargetCardId: null == initialTargetCardId ? _self.initialTargetCardId : initialTargetCardId // ignore: cast_nullable_to_non_nullable
+as List<MatrixCard>,stages: null == stages ? _self.stages : stages // ignore: cast_nullable_to_non_nullable
-as String,initialTargetWord: null == initialTargetWord ? _self.initialTargetWord : initialTargetWord // ignore: cast_nullable_to_non_nullable
+as List<MatrixStage>,initialTargetCardId: freezed == initialTargetCardId ? _self.initialTargetCardId : initialTargetCardId // ignore: cast_nullable_to_non_nullable
-as String,word: null == word ? _self.word : word // ignore: cast_nullable_to_non_nullable
+as String?,initialTargetWord: freezed == initialTargetWord ? _self.initialTargetWord : initialTargetWord // ignore: cast_nullable_to_non_nullable
-as String,type: null == type ? _self.type : type // ignore: cast_nullable_to_non_nullable
+as String?,word: null == word ? _self.word : word // ignore: cast_nullable_to_non_nullable
+as String,text: freezed == text ? _self.text : text // ignore: cast_nullable_to_non_nullable
+as String?,type: null == type ? _self.type : type // ignore: cast_nullable_to_non_nullable
 as String,
   ));
 }
@@ -2406,10 +2409,10 @@ return $default(_that);case _:
 /// }
 /// ```
 
-@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( String id,  int matrixSize,  List<MatrixCard> cards,  String initialTargetCardId,  String initialTargetWord,  String word,  String type)?  $default,{required TResult orElse(),}) {final _that = this;
+@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( String id,  int matrixSize,  List<MatrixCard> cards,  List<MatrixStage> stages, @Deprecated('Use stages[0] instead')  String? initialTargetCardId, @Deprecated('Use stages[0] instead')  String? initialTargetWord,  String word,  String? text,  String type)?  $default,{required TResult orElse(),}) {final _that = this;
 switch (_that) {
 case _MatrixQuestion() when $default != null:
-return $default(_that.id,_that.matrixSize,_that.cards,_that.initialTargetCardId,_that.initialTargetWord,_that.word,_that.type);case _:
+return $default(_that.id,_that.matrixSize,_that.cards,_that.stages,_that.initialTargetCardId,_that.initialTargetWord,_that.word,_that.text,_that.type);case _:
   return orElse();
 
 }
@@ -2427,10 +2430,10 @@ return $default(_that.id,_that.matrixSize,_that.cards,_that.initialTargetCardId,
 /// }
 /// ```
 
-@optionalTypeArgs TResult when<TResult extends Object?>(TResult Function( String id,  int matrixSize,  List<MatrixCard> cards,  String initialTargetCardId,  String initialTargetWord,  String word,  String type)  $default,) {final _that = this;
+@optionalTypeArgs TResult when<TResult extends Object?>(TResult Function( String id,  int matrixSize,  List<MatrixCard> cards,  List<MatrixStage> stages, @Deprecated('Use stages[0] instead')  String? initialTargetCardId, @Deprecated('Use stages[0] instead')  String? initialTargetWord,  String word,  String? text,  String type)  $default,) {final _that = this;
 switch (_that) {
 case _MatrixQuestion():
-return $default(_that.id,_that.matrixSize,_that.cards,_that.initialTargetCardId,_that.initialTargetWord,_that.word,_that.type);case _:
+return $default(_that.id,_that.matrixSize,_that.cards,_that.stages,_that.initialTargetCardId,_that.initialTargetWord,_that.word,_that.text,_that.type);case _:
   throw StateError('Unexpected subclass');
 
 }
@@ -2447,10 +2450,10 @@ return $default(_that.id,_that.matrixSize,_that.cards,_that.initialTargetCardId,
 /// }
 /// ```
 
-@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? Function( String id,  int matrixSize,  List<MatrixCard> cards,  String initialTargetCardId,  String initialTargetWord,  String word,  String type)?  $default,) {final _that = this;
+@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? Function( String id,  int matrixSize,  List<MatrixCard> cards,  List<MatrixStage> stages, @Deprecated('Use stages[0] instead')  String? initialTargetCardId, @Deprecated('Use stages[0] instead')  String? initialTargetWord,  String word,  String? text,  String type)?  $default,) {final _that = this;
 switch (_that) {
 case _MatrixQuestion() when $default != null:
-return $default(_that.id,_that.matrixSize,_that.cards,_that.initialTargetCardId,_that.initialTargetWord,_that.word,_that.type);case _:
+return $default(_that.id,_that.matrixSize,_that.cards,_that.stages,_that.initialTargetCardId,_that.initialTargetWord,_that.word,_that.text,_that.type);case _:
   return null;
 
 }
@@ -2462,7 +2465,7 @@ return $default(_that.id,_that.matrixSize,_that.cards,_that.initialTargetCardId,
 @JsonSerializable()
 
 class _MatrixQuestion implements MatrixQuestion {
-  const _MatrixQuestion({required this.id, required this.matrixSize, required final  List<MatrixCard> cards, required this.initialTargetCardId, required this.initialTargetWord, required this.word, this.type = 'matrix'}): _cards = cards;
+  const _MatrixQuestion({required this.id, required this.matrixSize, required final  List<MatrixCard> cards, final  List<MatrixStage> stages = const [], @Deprecated('Use stages[0] instead') this.initialTargetCardId, @Deprecated('Use stages[0] instead') this.initialTargetWord, required this.word, this.text, this.type = 'matrix'}): _cards = cards,_stages = stages;
   factory _MatrixQuestion.fromJson(Map<String, dynamic> json) => _$MatrixQuestionFromJson(json);
 
 @override final  String id;
@@ -2474,9 +2477,18 @@ class _MatrixQuestion implements MatrixQuestion {
   return EqualUnmodifiableListView(_cards);
 }
 
-@override final  String initialTargetCardId;
+ final  List<MatrixStage> _stages;
-@override final  String initialTargetWord;
+@override@JsonKey() List<MatrixStage> get stages {
+  if (_stages is EqualUnmodifiableListView) return _stages;
+  // ignore: implicit_dynamic_type
+  return EqualUnmodifiableListView(_stages);
+}
+
+// DEPRECATED: Use stages[0] instead. Kept for backward compatibility.
+@override@Deprecated('Use stages[0] instead') final  String? initialTargetCardId;
+@override@Deprecated('Use stages[0] instead') final  String? initialTargetWord;
 @override final  String word;
+@override final  String? text;
 @override@JsonKey() final  String type;
 
 /// Create a copy of MatrixQuestion
@@ -2492,16 +2504,16 @@ Map<String, dynamic> toJson() {
 
 @override
 bool operator ==(Object other) {
-  return identical(this, other) || (other.runtimeType == runtimeType&&other is _MatrixQuestion&&(identical(other.id, id) || other.id == id)&&(identical(other.matrixSize, matrixSize) || other.matrixSize == matrixSize)&&const DeepCollectionEquality().equals(other._cards, _cards)&&(identical(other.initialTargetCardId, initialTargetCardId) || other.initialTargetCardId == initialTargetCardId)&&(identical(other.initialTargetWord, initialTargetWord) || other.initialTargetWord == initialTargetWord)&&(identical(other.word, word) || other.word == word)&&(identical(other.type, type) || other.type == type));
+  return identical(this, other) || (other.runtimeType == runtimeType&&other is _MatrixQuestion&&(identical(other.id, id) || other.id == id)&&(identical(other.matrixSize, matrixSize) || other.matrixSize == matrixSize)&&const DeepCollectionEquality().equals(other._cards, _cards)&&const DeepCollectionEquality().equals(other._stages, _stages)&&(identical(other.initialTargetCardId, initialTargetCardId) || other.initialTargetCardId == initialTargetCardId)&&(identical(other.initialTargetWord, initialTargetWord) || other.initialTargetWord == initialTargetWord)&&(identical(other.word, word) || other.word == word)&&(identical(other.text, text) || other.text == text)&&(identical(other.type, type) || other.type == type));
 }
 
 @JsonKey(includeFromJson: false, includeToJson: false)
 @override
-int get hashCode => Object.hash(runtimeType,id,matrixSize,const DeepCollectionEquality().hash(_cards),initialTargetCardId,initialTargetWord,word,type);
+int get hashCode => Object.hash(runtimeType,id,matrixSize,const DeepCollectionEquality().hash(_cards),const DeepCollectionEquality().hash(_stages),initialTargetCardId,initialTargetWord,word,text,type);
 
 @override
 String toString() {
-  return 'MatrixQuestion(id: $id, matrixSize: $matrixSize, cards: $cards, initialTargetCardId: $initialTargetCardId, initialTargetWord: $initialTargetWord, word: $word, type: $type)';
+  return 'MatrixQuestion(id: $id, matrixSize: $matrixSize, cards: $cards, stages: $stages, initialTargetCardId: $initialTargetCardId, initialTargetWord: $initialTargetWord, word: $word, text: $text, type: $type)';
 }
 
 
@@ -2512,7 +2524,7 @@ abstract mixin class _$MatrixQuestionCopyWith<$Res> implements $MatrixQuestionCo
   factory _$MatrixQuestionCopyWith(_MatrixQuestion value, $Res Function(_MatrixQuestion) _then) = __$MatrixQuestionCopyWithImpl;
 @override @useResult
 $Res call({
- String id, int matrixSize, List<MatrixCard> cards, String initialTargetCardId, String initialTargetWord, String word, String type
+ String id, int matrixSize, List<MatrixCard> cards, List<MatrixStage> stages,@Deprecated('Use stages[0] instead') String? initialTargetCardId,@Deprecated('Use stages[0] instead') String? initialTargetWord, String word, String? text, String type
 });
 
 
@@ -2529,15 +2541,17 @@ class __$MatrixQuestionCopyWithImpl<$Res>
 
 /// Create a copy of MatrixQuestion
 /// with the given fields replaced by the non-null parameter values.
-@override @pragma('vm:prefer-inline') $Res call({Object? id = null,Object? matrixSize = null,Object? cards = null,Object? initialTargetCardId = null,Object? initialTargetWord = null,Object? word = null,Object? type = null,}) {
+@override @pragma('vm:prefer-inline') $Res call({Object? id = null,Object? matrixSize = null,Object? cards = null,Object? stages = null,Object? initialTargetCardId = freezed,Object? initialTargetWord = freezed,Object? word = null,Object? text = freezed,Object? type = null,}) {
   return _then(_MatrixQuestion(
 id: null == id ? _self.id : id // ignore: cast_nullable_to_non_nullable
 as String,matrixSize: null == matrixSize ? _self.matrixSize : matrixSize // ignore: cast_nullable_to_non_nullable
 as int,cards: null == cards ? _self._cards : cards // ignore: cast_nullable_to_non_nullable
-as List<MatrixCard>,initialTargetCardId: null == initialTargetCardId ? _self.initialTargetCardId : initialTargetCardId // ignore: cast_nullable_to_non_nullable
+as List<MatrixCard>,stages: null == stages ? _self._stages : stages // ignore: cast_nullable_to_non_nullable
-as String,initialTargetWord: null == initialTargetWord ? _self.initialTargetWord : initialTargetWord // ignore: cast_nullable_to_non_nullable
+as List<MatrixStage>,initialTargetCardId: freezed == initialTargetCardId ? _self.initialTargetCardId : initialTargetCardId // ignore: cast_nullable_to_non_nullable
-as String,word: null == word ? _self.word : word // ignore: cast_nullable_to_non_nullable
+as String?,initialTargetWord: freezed == initialTargetWord ? _self.initialTargetWord : initialTargetWord // ignore: cast_nullable_to_non_nullable
-as String,type: null == type ? _self.type : type // ignore: cast_nullable_to_non_nullable
+as String?,word: null == word ? _self.word : word // ignore: cast_nullable_to_non_nullable
+as String,text: freezed == text ? _self.text : text // ignore: cast_nullable_to_non_nullable
+as String?,type: null == type ? _self.type : type // ignore: cast_nullable_to_non_nullable
 as String,
   ));
 }
@@ -2546,10 +2560,279 @@ as String,
 }
 
 
+/// @nodoc
+mixin _$MatrixStage {
+
+ String get targetCardId; String get targetWord; String? get targetAudio;
+/// Create a copy of MatrixStage
+/// with the given fields replaced by the non-null parameter values.
+@JsonKey(includeFromJson: false, includeToJson: false)
+@pragma('vm:prefer-inline')
+$MatrixStageCopyWith<MatrixStage> get copyWith => _$MatrixStageCopyWithImpl<MatrixStage>(this as MatrixStage, _$identity);
+
+  /// Serializes this MatrixStage to a JSON map.
+  Map<String, dynamic> toJson();
+
+
+@override
+bool operator ==(Object other) {
+  return identical(this, other) || (other.runtimeType == runtimeType&&other is MatrixStage&&(identical(other.targetCardId, targetCardId) || other.targetCardId == targetCardId)&&(identical(other.targetWord, targetWord) || other.targetWord == targetWord)&&(identical(other.targetAudio, targetAudio) || other.targetAudio == targetAudio));
+}
+
+@JsonKey(includeFromJson: false, includeToJson: false)
+@override
+int get hashCode => Object.hash(runtimeType,targetCardId,targetWord,targetAudio);
+
+@override
+String toString() {
+  return 'MatrixStage(targetCardId: $targetCardId, targetWord: $targetWord, targetAudio: $targetAudio)';
+}
+
+
+}
+
+/// @nodoc
+abstract mixin class $MatrixStageCopyWith<$Res>  {
+  factory $MatrixStageCopyWith(MatrixStage value, $Res Function(MatrixStage) _then) = _$MatrixStageCopyWithImpl;
+@useResult
+$Res call({
+ String targetCardId, String targetWord, String? targetAudio
+});
+
+
+
+
+}
+/// @nodoc
+class _$MatrixStageCopyWithImpl<$Res>
+    implements $MatrixStageCopyWith<$Res> {
+  _$MatrixStageCopyWithImpl(this._self, this._then);
+
+  final MatrixStage _self;
+  final $Res Function(MatrixStage) _then;
+
+/// Create a copy of MatrixStage
+/// with the given fields replaced by the non-null parameter values.
+@pragma('vm:prefer-inline') @override $Res call({Object? targetCardId = null,Object? targetWord = null,Object? targetAudio = freezed,}) {
+  return _then(_self.copyWith(
+targetCardId: null == targetCardId ? _self.targetCardId : targetCardId // ignore: cast_nullable_to_non_nullable
+as String,targetWord: null == targetWord ? _self.targetWord : targetWord // ignore: cast_nullable_to_non_nullable
+as String,targetAudio: freezed == targetAudio ? _self.targetAudio : targetAudio // ignore: cast_nullable_to_non_nullable
+as String?,
+  ));
+}
+
+}
+
+
+/// Adds pattern-matching-related methods to [MatrixStage].
+extension MatrixStagePatterns on MatrixStage {
+/// A variant of `map` that fallback to returning `orElse`.
+///
+/// It is equivalent to doing:
+/// ```dart
+/// switch (sealedClass) {
+///   case final Subclass value:
+///     return ...;
+///   case _:
+///     return orElse();
+/// }
+/// ```
+
+@optionalTypeArgs TResult maybeMap<TResult extends Object?>(TResult Function( _MatrixStage value)?  $default,{required TResult orElse(),}){
+final _that = this;
+switch (_that) {
+case _MatrixStage() when $default != null:
+return $default(_that);case _:
+  return orElse();
+
+}
+}
+/// A `switch`-like method, using callbacks.
+///
+/// Callbacks receives the raw object, upcasted.
+/// It is equivalent to doing:
+/// ```dart
+/// switch (sealedClass) {
+///   case final Subclass value:
+///     return ...;
+///   case final Subclass2 value:
+///     return ...;
+/// }
+/// ```
+
+@optionalTypeArgs TResult map<TResult extends Object?>(TResult Function( _MatrixStage value)  $default,){
+final _that = this;
+switch (_that) {
+case _MatrixStage():
+return $default(_that);case _:
+  throw StateError('Unexpected subclass');
+
+}
+}
+/// A variant of `map` that fallback to returning `null`.
+///
+/// It is equivalent to doing:
+/// ```dart
+/// switch (sealedClass) {
+///   case final Subclass value:
+///     return ...;
+///   case _:
+///     return null;
+/// }
+/// ```
+
+@optionalTypeArgs TResult? mapOrNull<TResult extends Object?>(TResult? Function( _MatrixStage value)?  $default,){
+final _that = this;
+switch (_that) {
+case _MatrixStage() when $default != null:
+return $default(_that);case _:
+  return null;
+
+}
+}
+/// A variant of `when` that fallback to an `orElse` callback.
+///
+/// It is equivalent to doing:
+/// ```dart
+/// switch (sealedClass) {
+///   case Subclass(:final field):
+///     return ...;
+///   case _:
+///     return orElse();
+/// }
+/// ```
+
+@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( String targetCardId,  String targetWord,  String? targetAudio)?  $default,{required TResult orElse(),}) {final _that = this;
+switch (_that) {
+case _MatrixStage() when $default != null:
+return $default(_that.targetCardId,_that.targetWord,_that.targetAudio);case _:
+  return orElse();
+
+}
+}
+/// A `switch`-like method, using callbacks.
+///
+/// As opposed to `map`, this offers destructuring.
+/// It is equivalent to doing:
+/// ```dart
+/// switch (sealedClass) {
+///   case Subclass(:final field):
+///     return ...;
+///   case Subclass2(:final field2):
+///     return ...;
+/// }
+/// ```
+
+@optionalTypeArgs TResult when<TResult extends Object?>(TResult Function( String targetCardId,  String targetWord,  String? targetAudio)  $default,) {final _that = this;
+switch (_that) {
+case _MatrixStage():
+return $default(_that.targetCardId,_that.targetWord,_that.targetAudio);case _:
+  throw StateError('Unexpected subclass');
+
+}
+}
+/// A variant of `when` that fallback to returning `null`
+///
+/// It is equivalent to doing:
+/// ```dart
+/// switch (sealedClass) {
+///   case Subclass(:final field):
+///     return ...;
+///   case _:
+///     return null;
+/// }
+/// ```
+
+@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? Function( String targetCardId,  String targetWord,  String? targetAudio)?  $default,) {final _that = this;
+switch (_that) {
+case _MatrixStage() when $default != null:
+return $default(_that.targetCardId,_that.targetWord,_that.targetAudio);case _:
+  return null;
+
+}
+}
+
+}
+
+/// @nodoc
+@JsonSerializable()
+
+class _MatrixStage implements MatrixStage {
+  const _MatrixStage({required this.targetCardId, required this.targetWord, this.targetAudio});
+  factory _MatrixStage.fromJson(Map<String, dynamic> json) => _$MatrixStageFromJson(json);
+
+@override final  String targetCardId;
+@override final  String targetWord;
+@override final  String? targetAudio;
+
+/// Create a copy of MatrixStage
+/// with the given fields replaced by the non-null parameter values.
+@override @JsonKey(includeFromJson: false, includeToJson: false)
+@pragma('vm:prefer-inline')
+_$MatrixStageCopyWith<_MatrixStage> get copyWith => __$MatrixStageCopyWithImpl<_MatrixStage>(this, _$identity);
+
+@override
+Map<String, dynamic> toJson() {
+  return _$MatrixStageToJson(this, );
+}
+
+@override
+bool operator ==(Object other) {
+  return identical(this, other) || (other.runtimeType == runtimeType&&other is _MatrixStage&&(identical(other.targetCardId, targetCardId) || other.targetCardId == targetCardId)&&(identical(other.targetWord, targetWord) || other.targetWord == targetWord)&&(identical(other.targetAudio, targetAudio) || other.targetAudio == targetAudio));
+}
+
+@JsonKey(includeFromJson: false, includeToJson: false)
+@override
+int get hashCode => Object.hash(runtimeType,targetCardId,targetWord,targetAudio);
+
+@override
+String toString() {
+  return 'MatrixStage(targetCardId: $targetCardId, targetWord: $targetWord, targetAudio: $targetAudio)';
+}
+
+
+}
+
+/// @nodoc
+abstract mixin class _$MatrixStageCopyWith<$Res> implements $MatrixStageCopyWith<$Res> {
+  factory _$MatrixStageCopyWith(_MatrixStage value, $Res Function(_MatrixStage) _then) = __$MatrixStageCopyWithImpl;
+@override @useResult
+$Res call({
+ String targetCardId, String targetWord, String? targetAudio
+});
+
+
+
+
+}
+/// @nodoc
+class __$MatrixStageCopyWithImpl<$Res>
+    implements _$MatrixStageCopyWith<$Res> {
+  __$MatrixStageCopyWithImpl(this._self, this._then);
+
+  final _MatrixStage _self;
+  final $Res Function(_MatrixStage) _then;
+
+/// Create a copy of MatrixStage
+/// with the given fields replaced by the non-null parameter values.
+@override @pragma('vm:prefer-inline') $Res call({Object? targetCardId = null,Object? targetWord = null,Object? targetAudio = freezed,}) {
+  return _then(_MatrixStage(
+targetCardId: null == targetCardId ? _self.targetCardId : targetCardId // ignore: cast_nullable_to_non_nullable
+as String,targetWord: null == targetWord ? _self.targetWord : targetWord // ignore: cast_nullable_to_non_nullable
+as String,targetAudio: freezed == targetAudio ? _self.targetAudio : targetAudio // ignore: cast_nullable_to_non_nullable
+as String?,
+  ));
+}
+
+
+}
+
+
 /// @nodoc
 mixin _$MatrixCard {
 
- String get id; String get image; String get original; String get translation;
+ String get id; String? get image; String? get original; String? get translation;
 /// Create a copy of MatrixCard
 /// with the given fields replaced by the non-null parameter values.
 @JsonKey(includeFromJson: false, includeToJson: false)
@@ -2582,7 +2865,7 @@ abstract mixin class $MatrixCardCopyWith<$Res>  {
   factory $MatrixCardCopyWith(MatrixCard value, $Res Function(MatrixCard) _then) = _$MatrixCardCopyWithImpl;
 @useResult
 $Res call({
- String id, String image, String original, String translation
+ String id, String? image, String? original, String? translation
 });
 
 
@@ -2599,13 +2882,13 @@ class _$MatrixCardCopyWithImpl<$Res>
 
 /// Create a copy of MatrixCard
 /// with the given fields replaced by the non-null parameter values.
-@pragma('vm:prefer-inline') @override $Res call({Object? id = null,Object? image = null,Object? original = null,Object? translation = null,}) {
+@pragma('vm:prefer-inline') @override $Res call({Object? id = null,Object? image = freezed,Object? original = freezed,Object? translation = freezed,}) {
   return _then(_self.copyWith(
 id: null == id ? _self.id : id // ignore: cast_nullable_to_non_nullable
-as String,image: null == image ? _self.image : image // ignore: cast_nullable_to_non_nullable
+as String,image: freezed == image ? _self.image : image // ignore: cast_nullable_to_non_nullable
-as String,original: null == original ? _self.original : original // ignore: cast_nullable_to_non_nullable
+as String?,original: freezed == original ? _self.original : original // ignore: cast_nullable_to_non_nullable
-as String,translation: null == translation ? _self.translation : translation // ignore: cast_nullable_to_non_nullable
+as String?,translation: freezed == translation ? _self.translation : translation // ignore: cast_nullable_to_non_nullable
-as String,
+as String?,
   ));
 }
 
@@ -2690,7 +2973,7 @@ return $default(_that);case _:
 /// }
 /// ```
 
-@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( String id,  String image,  String original,  String translation)?  $default,{required TResult orElse(),}) {final _that = this;
+@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( String id,  String? image,  String? original,  String? translation)?  $default,{required TResult orElse(),}) {final _that = this;
 switch (_that) {
 case _MatrixCard() when $default != null:
 return $default(_that.id,_that.image,_that.original,_that.translation);case _:
@@ -2711,7 +2994,7 @@ return $default(_that.id,_that.image,_that.original,_that.translation);case _:
 /// }
 /// ```
 
-@optionalTypeArgs TResult when<TResult extends Object?>(TResult Function( String id,  String image,  String original,  String translation)  $default,) {final _that = this;
+@optionalTypeArgs TResult when<TResult extends Object?>(TResult Function( String id,  String? image,  String? original,  String? translation)  $default,) {final _that = this;
 switch (_that) {
 case _MatrixCard():
 return $default(_that.id,_that.image,_that.original,_that.translation);case _:
@@ -2731,7 +3014,7 @@ return $default(_that.id,_that.image,_that.original,_that.translation);case _:
 /// }
 /// ```
 
-@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? Function( String id,  String image,  String original,  String translation)?  $default,) {final _that = this;
+@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? Function( String id,  String? image,  String? original,  String? translation)?  $default,) {final _that = this;
 switch (_that) {
 case _MatrixCard() when $default != null:
 return $default(_that.id,_that.image,_that.original,_that.translation);case _:
@@ -2746,13 +3029,13 @@ return $default(_that.id,_that.image,_that.original,_that.translation);case _:
 @JsonSerializable()
 
 class _MatrixCard implements MatrixCard {
-  const _MatrixCard({required this.id, required this.image, required this.original, required this.translation});
+  const _MatrixCard({required this.id, this.image, this.original, this.translation});
   factory _MatrixCard.fromJson(Map<String, dynamic> json) => _$MatrixCardFromJson(json);
 
 @override final  String id;
-@override final  String image;
+@override final  String? image;
-@override final  String original;
+@override final  String? original;
-@override final  String translation;
+@override final  String? translation;
 
 /// Create a copy of MatrixCard
 /// with the given fields replaced by the non-null parameter values.
@@ -2787,7 +3070,7 @@ abstract mixin class _$MatrixCardCopyWith<$Res> implements $MatrixCardCopyWith<$
   factory _$MatrixCardCopyWith(_MatrixCard value, $Res Function(_MatrixCard) _then) = __$MatrixCardCopyWithImpl;
 @override @useResult
 $Res call({
- String id, String image, String original, String translation
+ String id, String? image, String? original, String? translation
 });
 
 
@@ -2804,13 +3087,13 @@ class __$MatrixCardCopyWithImpl<$Res>
 
 /// Create a copy of MatrixCard
 /// with the given fields replaced by the non-null parameter values.
-@override @pragma('vm:prefer-inline') $Res call({Object? id = null,Object? image = null,Object? original = null,Object? translation = null,}) {
+@override @pragma('vm:prefer-inline') $Res call({Object? id = null,Object? image = freezed,Object? original = freezed,Object? translation = freezed,}) {
   return _then(_MatrixCard(
 id: null == id ? _self.id : id // ignore: cast_nullable_to_non_nullable
-as String,image: null == image ? _self.image : image // ignore: cast_nullable_to_non_nullable
+as String,image: freezed == image ? _self.image : image // ignore: cast_nullable_to_non_nullable
-as String,original: null == original ? _self.original : original // ignore: cast_nullable_to_non_nullable
+as String?,original: freezed == original ? _self.original : original // ignore: cast_nullable_to_non_nullable
-as String,translation: null == translation ? _self.translation : translation // ignore: cast_nullable_to_non_nullable
+as String?,translation: freezed == translation ? _self.translation : translation // ignore: cast_nullable_to_non_nullable
-as String,
+as String?,
   ));
 }
 

mnemo_cards_web_v2/lib/domain/models/game_question.g.dart

@@ -196,9 +196,15 @@ _MatrixQuestion _$MatrixQuestionFromJson(Map<String, dynamic> json) =>
       cards: (json['cards'] as List<dynamic>)
           .map((e) => MatrixCard.fromJson(e as Map<String, dynamic>))
           .toList(),
-      initialTargetCardId: json['initialTargetCardId'] as String,
+      stages:
-      initialTargetWord: json['initialTargetWord'] as String,
+          (json['stages'] as List<dynamic>?)
+              ?.map((e) => MatrixStage.fromJson(e as Map<String, dynamic>))
+              .toList() ??
+          const [],
+      initialTargetCardId: json['initialTargetCardId'] as String?,
+      initialTargetWord: json['initialTargetWord'] as String?,
       word: json['word'] as String,
+      text: json['text'] as String?,
       type: json['type'] as String? ?? 'matrix',
     );
 
@@ -207,17 +213,32 @@ Map<String, dynamic> _$MatrixQuestionToJson(_MatrixQuestion instance) =>
       'id': instance.id,
       'matrixSize': instance.matrixSize,
       'cards': instance.cards,
+      'stages': instance.stages,
       'initialTargetCardId': instance.initialTargetCardId,
       'initialTargetWord': instance.initialTargetWord,
       'word': instance.word,
+      'text': instance.text,
       'type': instance.type,
     };
 
+_MatrixStage _$MatrixStageFromJson(Map<String, dynamic> json) => _MatrixStage(
+  targetCardId: json['targetCardId'] as String,
+  targetWord: json['targetWord'] as String,
+  targetAudio: json['targetAudio'] as String?,
+);
+
+Map<String, dynamic> _$MatrixStageToJson(_MatrixStage instance) =>
+    <String, dynamic>{
+      'targetCardId': instance.targetCardId,
+      'targetWord': instance.targetWord,
+      'targetAudio': instance.targetAudio,
+    };
+
 _MatrixCard _$MatrixCardFromJson(Map<String, dynamic> json) => _MatrixCard(
   id: json['id'] as String,
-  image: json['image'] as String,
+  image: json['image'] as String?,
-  original: json['original'] as String,
+  original: json['original'] as String?,
-  translation: json['translation'] as String,
+  translation: json['translation'] as String?,
 );
 
 Map<String, dynamic> _$MatrixCardToJson(_MatrixCard instance) =>

mnemo_cards_web_v2/lib/domain/state/tests_state_manager.dart

@@ -290,11 +290,27 @@ class TestsStateManager extends StateManager<TestsState> {
       });
 
   /// Complete the game session
-  Future<void> completeGameSession() => handle((emit) async {
+  Future<void> completeGameSession() {
+    log('completeGameSession method invoked', name: 'TestsStateManager');
+    return handle((emit) async {
+        log('completeGameSession handle callback started', name: 'TestsStateManager');
         final currentState = state;
-        if (currentState is! _GameSessionActive || _currentTest == null) return;
+        log('Current state type: ${currentState.runtimeType}', name: 'TestsStateManager');
+        log('Current test: ${_currentTest?.id}', name: 'TestsStateManager');
+        
+        if (currentState is! _GameSessionActive) {
+          log('State is not GameSessionActive, returning', name: 'TestsStateManager');
+          return;
+        }
+        
+        if (_currentTest == null) {
+          log('Current test is null, returning', name: 'TestsStateManager');
+          return;
+        }
 
         try {
+          log('Processing completion...', name: 'TestsStateManager');
+          
           // Check if current question has been answered
           final currentQuestion = currentState.questions[currentState.currentQuestionIndex];
           final questionId = _getQuestionId(currentQuestion);
@@ -309,11 +325,15 @@ class TestsStateManager extends StateManager<TestsState> {
             _gameSessionManager.submitAnswer(questionId, currentQuestion, '');
           }
 
+          log('Calling gameSessionManager.completeSession', name: 'TestsStateManager');
           final result = _gameSessionManager.completeSession(_currentTest!.id!);
+          log('completeSession returned result', name: 'TestsStateManager');
 
           // Play completion sound
+          log('Playing completion sound', name: 'TestsStateManager');
           await _gameSoundService.playGameComplete();
 
+          log('Emitting gameSessionCompleted state', name: 'TestsStateManager');
           emit(TestsState.gameSessionCompleted(
             test: _currentTest!,
             result: result,
@@ -331,6 +351,7 @@ class TestsStateManager extends StateManager<TestsState> {
           emit(TestsState.error('Failed to complete session: ${e.toString()}'));
         }
       });
+  }
 
   /// Reset game session
   Future<void> resetGameSession() => handle((emit) async {
@@ -434,7 +455,7 @@ class TestsStateManager extends StateManager<TestsState> {
         questions.add(GameQuestion.multipleChoice(
           MultipleChoiceQuestion(
             id: 'q_${questions.length}',
-            question: question.w ?? '',
+            question: question.text ?? '',
             image: question.imageUrl ?? question.image, // Use presigned URL if available
             audio: question.audio,
             options: options, // Keep for backward compatibility
@@ -479,15 +500,36 @@ class TestsStateManager extends StateManager<TestsState> {
             )
             .toList();
 
+        // Convert stages from DTO to domain model
+        final stages = question.stages
+            .map(
+              (s) => MatrixStage(
+                targetCardId: s.targetCardId,
+                targetWord: s.targetWord,
+                targetAudio: s.targetAudio,
+              ),
+            )
+            .toList();
+
+        // Use stages if available, otherwise fallback to deprecated fields
+        final initialTargetCardId = stages.isNotEmpty
+            ? stages.first.targetCardId
+            : question.answer;
+        final initialTargetWord = stages.isNotEmpty
+            ? stages.first.targetWord
+            : question.word;
+
         questions.add(
           GameQuestion.matrix(
             MatrixQuestion(
               id: id,
               matrixSize: question.matrixSize,
               cards: cards,
-              initialTargetCardId: question.answer,
+              stages: stages,
-              initialTargetWord: question.word,
+              initialTargetCardId: initialTargetCardId,
+              initialTargetWord: initialTargetWord,
               word: question.word,
+              text: question.text,
             ),
           ),
         );

mnemo_cards_web_v2/lib/presentation/pages/game/game_page.dart

@@ -17,6 +17,7 @@ import '../../../domain/state/tests_state_manager.dart';
 import '../../../presentation/widgets/error_view.dart';
 import '../../../presentation/widgets/game/answer_options.dart';
 import '../../../presentation/widgets/game/input_letters_widget.dart';
+import '../../../presentation/widgets/game/match_widget.dart';
 import '../../../presentation/widgets/game/matrix_widget.dart';
 import '../../../presentation/widgets/game/progress_indicator.dart';
 import '../../../presentation/widgets/game/question_display.dart';
@@ -133,6 +134,7 @@ class _GamePageState extends State<GamePage> {
   }
 
   Widget _buildBody(TestsState state) {
+    log('_buildBody called with state: ${state.runtimeType}', name: 'GamePage');
     final appScope = ScopeProvider.of<AppScopeContainer>(context, listen: false);
     final userScope = appScope?.userScopeHolder.scope;
     final sessionElapsed = userScope?.testsModule.gameSessionManager.sessionElapsed ?? Duration.zero;
@@ -229,6 +231,34 @@ class _GamePageState extends State<GamePage> {
       builder: (context, constraints) {
         final isNarrow = constraints.maxWidth < 720;
         final contentWidth = isNarrow ? constraints.maxWidth : _maxContentWidth;
+        final availableHeight = constraints.maxHeight;
+        
+        // Determine progress indicator mode based on available height
+        final progressMode = availableHeight > 800
+            ? ProgressIndicatorMode.full
+            : availableHeight > 600
+                ? ProgressIndicatorMode.compact
+                : ProgressIndicatorMode.mini;
+        
+        // Calculate spacing based on available height
+        final spacingAfterProgress = availableHeight > 700 ? 12.h : 8.h;
+        final spacingAfterQuestion = availableHeight > 700 ? 16.h : 12.h;
+        final spacingAfterAnswer = availableHeight > 700 ? 16.h : 12.h;
+        
+        // Calculate max heights for question and answer sections
+        // Reserve space: progress (40-100px), navigation buttons (56px), spacing
+        final reservedHeight = progressMode == ProgressIndicatorMode.full
+            ? 120.h
+            : progressMode == ProgressIndicatorMode.compact
+                ? 80.h
+                : 60.h;
+        final navigationHeight = (_canGoPrevious(state) || _canGoNext(state) || _isLastQuestion(state)) ? 72.h : 0;
+        final totalSpacing = spacingAfterProgress + spacingAfterQuestion + spacingAfterAnswer;
+        final availableForContent = availableHeight - reservedHeight - navigationHeight - totalSpacing;
+        
+        // Distribute: 40% question, 60% answers (adjustable)
+        final questionMaxHeight = availableForContent * 0.4;
+        final answerMaxHeight = availableForContent * 0.6;
 
         return Center(
           child: ConstrainedBox(
@@ -236,100 +266,119 @@ class _GamePageState extends State<GamePage> {
             child: Column(
               children: [
                 // Progress indicator
-                Container(
+                Padding(
-                  padding: EdgeInsets.symmetric(horizontal: 16.w, vertical: 8.h),
+                  padding: EdgeInsets.symmetric(horizontal: isNarrow ? 12.w : 16.w),
-          child: Row(
+                  child: GameProgressIndicator(
-            children: [
+                    currentQuestion: currentQuestionIndex,
-              Expanded(
+                    totalQuestions: questions.length,
-                child: GameProgressIndicator(
+                    correctAnswers: questionResults.values.where((r) => r.isCorrect).length,
-                  currentQuestion: currentQuestionIndex,
+                    timeElapsed: sessionElapsed,
-                  totalQuestions: questions.length,
+                    mode: progressMode,
-                  correctAnswers: questionResults.values.where((r) => r.isCorrect).length,
+                  ),
-                          timeElapsed: sessionElapsed,
-                ),
-              ),
-            ],
-          ),
                 ),
 
+                SizedBox(height: spacingAfterProgress),
+
                 // Question content
                 Expanded(
-                  child: SingleChildScrollView(
+                  child: Padding(
-                    padding: EdgeInsets.all(isNarrow ? 12.w : 16.w),
+                    padding: EdgeInsets.symmetric(horizontal: isNarrow ? 12.w : 16.w),
                     child: Column(
-                      crossAxisAlignment: CrossAxisAlignment.stretch,
                       children: [
                         // Question display
-                        AnimatedSwitcher(
+                        Flexible(
-                          duration: const Duration(milliseconds: 300),
+                          flex: 2,
-                          child: KeyedSubtree(
+                          child: ConstrainedBox(
-                            key: questionKey,
+                            constraints: BoxConstraints(maxHeight: questionMaxHeight),
-                            child: Material(
+                            child: AnimatedSwitcher(
-                              key: GamePage.questionCardKey,
+                              duration: const Duration(milliseconds: 300),
-                              color: colorScheme.surface,
+                              child: KeyedSubtree(
-                              surfaceTintColor: colorScheme.surfaceTint,
+                                key: questionKey,
-                              elevation: 3,
+                                child: Material(
-                              shadowColor: theme.shadowColor.withOpacity(
+                                  key: GamePage.questionCardKey,
-                                theme.brightness == Brightness.dark ? 0.35 : 0.14,
+                                  color: colorScheme.surface,
-                              ),
+                                  surfaceTintColor: colorScheme.surfaceTint,
-                              shape: RoundedRectangleBorder(
+                                  elevation: 3,
-                                borderRadius: BorderRadius.circular(18.r),
+                                  shadowColor: theme.shadowColor.withOpacity(
-                                side: BorderSide(
+                                    theme.brightness == Brightness.dark ? 0.35 : 0.14,
-                                  color: colorScheme.outlineVariant,
+                                  ),
+                                  shape: RoundedRectangleBorder(
+                                    borderRadius: BorderRadius.circular(18.r),
+                                    side: BorderSide(
+                                      color: colorScheme.outlineVariant,
+                                    ),
+                                  ),
+                                  child: Padding(
+                                    padding: EdgeInsets.all(isNarrow ? 14.w : 18.w),
+                                    child: currentQuestion is GameQuestionMatrix
+                                        ? MatrixWidget(
+                                            question: currentQuestion.question,
+                                            maxHeight: questionMaxHeight,
+                                          )
+                                        : QuestionDisplay(
+                                            question: currentQuestion,
+                                            onPlayAudio: widget.questionAudioPlayback ?? _playQuestionAudio,
+                                            maxHeight: questionMaxHeight,
+                                          ),
+                                  ),
                                 ),
                               ),
-                              child: Padding(
-                                padding: EdgeInsets.all(isNarrow ? 14.w : 18.w),
-                                child: currentQuestion is GameQuestionMatrix
-                                    ? MatrixWidget(question: currentQuestion.question)
-                                    : QuestionDisplay(
-                                        question: currentQuestion,
-                                        onPlayAudio: widget.questionAudioPlayback ?? _playQuestionAudio,
-                                      ),
-                              ),
                             ),
                           ),
                         ),
 
-                        SizedBox(height: isNarrow ? 16.h : 20.h),
+                        SizedBox(height: spacingAfterQuestion),
 
                         // Answer input based on question type with smooth transitions
-                        AnimatedSwitcher(
+                        Flexible(
-                          duration: const Duration(milliseconds: 400),
+                          flex: 3,
-                          switchInCurve: Curves.easeInOut,
+                          child: ConstrainedBox(
-                          switchOutCurve: Curves.easeInOut,
+                            constraints: BoxConstraints(maxHeight: answerMaxHeight),
-                          transitionBuilder: (child, animation) {
+                            child: AnimatedSwitcher(
-                            return FadeTransition(
+                              duration: const Duration(milliseconds: 400),
-                              opacity: animation,
+                              switchInCurve: Curves.easeInOut,
-                              child: SlideTransition(
+                              switchOutCurve: Curves.easeInOut,
-                                position: Tween<Offset>(
+                              transitionBuilder: (child, animation) {
-                                  begin: const Offset(0.05, 0),
+                                return FadeTransition(
-                                  end: Offset.zero,
+                                  opacity: animation,
-                                ).animate(animation),
+                                  child: SlideTransition(
-                                child: child,
+                                    position: Tween<Offset>(
+                                      begin: const Offset(0.05, 0),
+                                      end: Offset.zero,
+                                    ).animate(animation),
+                                    child: child,
+                                  ),
+                                );
+                              },
+                              child: Container(
+                                key: ValueKey('question_input_${currentQuestion.hashCode}'),
+                                child: currentQuestion.when(
+                                  multipleChoice: (q) => AnswerOptions(
+                                    question: q,
+                                    selectedAnswer: _getSelectedAnswerForMultipleChoice(q, questionResults),
+                                    onAnswerSelected: _onAnswerSelected,
+                                    isAnswerSubmitted: isAnswerSubmitted,
+                                    isCorrect: isCorrect,
+                                    maxHeight: answerMaxHeight,
+                                  ),
+                                  inputLetters: (q) => InputLettersWidget(
+                                    question: q,
+                                    maxHeight: answerMaxHeight,
+                                  ),
+                                  match: (q) => MatchWidget(
+                                    question: q,
+                                    maxHeight: answerMaxHeight,
+                                  ),
+                                  matrix: (q) => const SizedBox.shrink(),
+                                ),
                               ),
-                            );
-                          },
-                          child: Container(
-                            key: ValueKey('question_input_${currentQuestion.hashCode}'),
-                            child: currentQuestion.when(
-                              multipleChoice: (q) => AnswerOptions(
-                                question: q,
-                                selectedAnswer: _getSelectedAnswerForMultipleChoice(q, questionResults),
-                                onAnswerSelected: _onAnswerSelected,
-                                isAnswerSubmitted: isAnswerSubmitted,
-                                isCorrect: isCorrect,
-                              ),
-                              inputLetters: (q) => InputLettersWidget(question: q),
-                              match: (q) => const Center(child: Text('Match questions coming soon!')),
-                              matrix: (q) => const SizedBox.shrink(),
                             ),
                           ),
                         ),
 
                         // Navigation buttons (show when navigation is possible)
                         if (_canGoPrevious(state) || _canGoNext(state) || _isLastQuestion(state)) ...[
-                          SizedBox(height: isNarrow ? 18.h : 24.h),
+                          SizedBox(height: spacingAfterAnswer),
                           Row(
                             mainAxisAlignment: MainAxisAlignment.center,
                             children: [
@@ -342,10 +391,18 @@ class _GamePageState extends State<GamePage> {
                                 SizedBox(width: isNarrow ? 12.w : 16.w),
                               ],
                               if (_isLastQuestion(state)) ...[
-                                ElevatedButton.icon(
+                                Builder(
-                                  onPressed: _finishGame,
+                                  builder: (context) {
-                                  icon: const Icon(Icons.check),
+                                    log('Finish button is being rendered', name: 'GamePage');
-                                  label: const Text('Finish'),
+                                    return ElevatedButton.icon(
+                                      onPressed: () {
+                                        log('Finish button onPressed triggered', name: 'GamePage');
+                                        _finishGame();
+                                      },
+                                      icon: const Icon(Icons.check),
+                                      label: const Text('Finish'),
+                                    );
+                                  },
                                 ),
                               ] else if (_canGoNext(state)) ...[
                                 ElevatedButton.icon(
@@ -546,11 +603,18 @@ class _GamePageState extends State<GamePage> {
   Future<void> _finishGame() async {
     log('Finish button pressed', name: 'GamePage');
     final appScope = ScopeProvider.of<AppScopeContainer>(context, listen: false);
+    log('AppScope: ${appScope != null ? 'available' : 'null'}', name: 'GamePage');
     final userScope = appScope?.userScopeHolder.scope;
+    log('UserScope: ${userScope != null ? 'available' : 'null'}', name: 'GamePage');
+    
     if (userScope != null) {
-      log('Completing game session...', name: 'GamePage');
+      log('Calling completeGameSession...', name: 'GamePage');
-      await userScope.testsModule.testsStateManager.completeGameSession();
+      try {
-      log('Game session completion called', name: 'GamePage');
+        await userScope.testsModule.testsStateManager.completeGameSession();
+        log('Game session completion finished successfully', name: 'GamePage');
+      } catch (e, s) {
+        log('Error during completeGameSession', error: e, stackTrace: s, name: 'GamePage');
+      }
     } else {
       log('No user scope available when finishing game', name: 'GamePage');
     }
@@ -635,20 +699,28 @@ class _GamePageState extends State<GamePage> {
   bool _canGoNext(TestsState state) {
     final appScope = ScopeProvider.of<AppScopeContainer>(context, listen: false);
     final userScope = appScope?.userScopeHolder.scope;
-    return userScope?.testsModule.testsStateManager.canGoNext ?? false;
+    final canNext = userScope?.testsModule.testsStateManager.canGoNext ?? false;
+    log('Can go next: $canNext', name: 'GamePage');
+    return canNext;
   }
 
   bool _canGoPrevious(TestsState state) {
     final appScope = ScopeProvider.of<AppScopeContainer>(context, listen: false);
     final userScope = appScope?.userScopeHolder.scope;
-    return userScope?.testsModule.testsStateManager.canGoPrevious ?? false;
+    final canPrev = userScope?.testsModule.testsStateManager.canGoPrevious ?? false;
+    log('Can go previous: $canPrev', name: 'GamePage');
+    return canPrev;
   }
 
   bool _isLastQuestion(TestsState state) {
-    return state.maybeWhen(
+    final result = state.maybeWhen(
-      gameSessionActive: (test, questions, currentQuestionIndex, _, __, ___, ____, _____) =>
+      gameSessionActive: (test, questions, currentQuestionIndex, _, __, ___, ____, _____) {
-        currentQuestionIndex >= questions.length - 1,
+        final isLast = currentQuestionIndex >= questions.length - 1;
+        log('Is last question: $isLast (index: $currentQuestionIndex, total: ${questions.length})', name: 'GamePage');
+        return isLast;
+      },
       orElse: () => false,
     );
+    return result;
   }
 }

mnemo_cards_web_v2/lib/presentation/pages/pack_details/pack_details_page.dart

@@ -443,7 +443,7 @@ class _PackDetailsPageState extends State<PackDetailsPage> {
       children: [
         // Модуль "проверка знаний" для мобильных
         // Hide tests section for mobile devices for now
-        // _buildMobileTestsSection(packColor),
+        _buildMobileTestsSection(packColor),
 
         const SizedBox(height: 16),
 
@@ -457,9 +457,11 @@ class _PackDetailsPageState extends State<PackDetailsPage> {
   // ignore: unused_element
   Widget _buildMobileTestsSection(Color packColor) {
     final tests = _getTests();
-
+    if (tests.isEmpty) {
+      return const SizedBox.shrink();
+    }
     return Container(
-      padding: const EdgeInsets.symmetric(horizontal: 16.0),
+      padding: const EdgeInsets.symmetric(horizontal: 8.0),
       child: Wrap(
         spacing: 8,
         runSpacing: 8,

mnemo_cards_web_v2/lib/presentation/widgets/game/answer_options.dart

@@ -11,6 +11,7 @@ class AnswerOptions extends StatelessWidget {
     required this.isAnswerSubmitted,
     required this.isCorrect,
     this.enabled = true,
+    this.maxHeight,
     super.key,
   });
 
@@ -20,6 +21,7 @@ class AnswerOptions extends StatelessWidget {
   final bool isAnswerSubmitted;
   final bool isCorrect;
   final bool enabled;
+  final double? maxHeight;
 
   void _onAnswerSelected(BuildContext context, String option) {
     // Note: Sound service access would be implemented through proper DI injection
@@ -44,27 +46,42 @@ class AnswerOptions extends StatelessWidget {
         // Adjust aspect ratio for image buttons (they need more space)
         final hasImages = hasOptionItems && 
             question.optionItems.any((item) => item.image != null);
-        final childAspectRatio = hasImages ? 1.1 : 4.0;
+        
+        // Adapt aspect ratio based on maxHeight
+        double childAspectRatio;
+        if (hasImages) {
+          childAspectRatio = maxHeight != null && maxHeight! < 300 ? 1.0 : 1.1;
+        } else {
+          childAspectRatio = maxHeight != null && maxHeight! < 300 ? 3.0 : 4.0;
+        }
+        
+        // Adapt spacing based on available height
+        final spacing = maxHeight != null && maxHeight! < 300 ? 8.0 : 12.0;
 
-        return GridView.builder(
+        return ConstrainedBox(
-          shrinkWrap: true,
+          constraints: maxHeight != null
-          physics: const NeverScrollableScrollPhysics(),
+              ? BoxConstraints(maxHeight: maxHeight!)
-          gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
+              : const BoxConstraints(),
-            crossAxisCount: crossAxisCount,
+          child: GridView.builder(
-            crossAxisSpacing: 12,
+            shrinkWrap: true,
-            mainAxisSpacing: 12,
+            physics: const NeverScrollableScrollPhysics(),
-            childAspectRatio: childAspectRatio,
+            gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
+              crossAxisCount: crossAxisCount,
+              crossAxisSpacing: spacing,
+              mainAxisSpacing: spacing,
+              childAspectRatio: childAspectRatio,
+            ),
+            itemCount: itemCount,
+            itemBuilder: (context, index) {
+              if (hasOptionItems) {
+                final optionItem = question.optionItems[index];
+                return _buildAnswerOptionFromItem(context, optionItem);
+              } else {
+                final option = question.options[index];
+                return _buildAnswerOption(context, option);
+              }
+            },
           ),
-          itemCount: itemCount,
-          itemBuilder: (context, index) {
-            if (hasOptionItems) {
-              final optionItem = question.optionItems[index];
-              return _buildAnswerOptionFromItem(context, optionItem);
-            } else {
-              final option = question.options[index];
-              return _buildAnswerOption(context, option);
-            }
-          },
         );
       },
     );
@@ -166,7 +183,10 @@ class AnswerOptions extends StatelessWidget {
                 splashColor: borderColor?.withOpacity(0.1),
                 child: AnimatedContainer(
                   duration: const Duration(milliseconds: 300),
-                  padding: EdgeInsets.symmetric(horizontal: 16, vertical: 12),
+                  padding: EdgeInsets.symmetric(
+                    horizontal: 16,
+                    vertical: 12,
+                  ),
                   decoration: BoxDecoration(
                     border: Border.all(
                       color:
@@ -303,7 +323,7 @@ class AnswerOptions extends StatelessWidget {
               duration: const Duration(milliseconds: 300),
               style: Theme.of(context).textTheme.bodySmall!.copyWith(
                     color: textColor,
-                    fontWeight: isSelected || isCorrectOption
+                    fontWeight: isSelected
                         ? FontWeight.w600
                         : FontWeight.normal,
                   ),

mnemo_cards_web_v2/lib/presentation/widgets/game/input_letters_widget.dart

@@ -9,10 +9,12 @@ import '../../../domain/models/game_question.dart';
 class InputLettersWidget extends StatefulWidget {
   const InputLettersWidget({
     required this.question,
+    this.maxHeight,
     super.key,
   });
 
   final InputLettersQuestion question;
+  final double? maxHeight;
 
   @override
   State<InputLettersWidget> createState() => _InputLettersWidgetState();
@@ -73,101 +75,123 @@ class _InputLettersWidgetState extends State<InputLettersWidget> {
 
   @override
   Widget build(BuildContext context) {
+    // Adapt spacing and padding based on maxHeight
+    final isCompact = widget.maxHeight != null && widget.maxHeight! < 400;
+    final containerPadding = isCompact ? 12.w : 16.w;
+    final containerMargin = isCompact ? 12.h : 16.h;
+    final spacingAfterTitle = isCompact ? 8.h : 12.h;
+    final spacingAfterWord = isCompact ? 8.h : 12.h;
+    final spacingAfterGrid = isCompact ? 12.h : 16.h;
+    final showFillInstruction = !isCompact; // Hide on very compact screens
+    
     return LayoutBuilder(
       builder: (context, constraints) {
-        return Column(
+        return ConstrainedBox(
-          mainAxisAlignment: MainAxisAlignment.center,
+          constraints: widget.maxHeight != null
-          children: [
+              ? BoxConstraints(maxHeight: widget.maxHeight!)
-            // Display the template with current input
+              : const BoxConstraints(),
-            Container(
+          child: Column(
-              padding: EdgeInsets.all(24.w),
+            mainAxisAlignment: MainAxisAlignment.center,
-              margin: EdgeInsets.only(bottom: 24.h),
+            mainAxisSize: MainAxisSize.min,
-              decoration: BoxDecoration(
+            children: [
-                color: Theme.of(context).colorScheme.surface,
+              // Display the template with current input
-                borderRadius: BorderRadius.circular(16.r),
+              Flexible(
-                boxShadow: [
+                child: Container(
-                  BoxShadow(
+                  padding: EdgeInsets.all(containerPadding),
-                    color: Colors.black.withOpacity(0.1),
+                  margin: EdgeInsets.only(bottom: containerMargin),
-                    blurRadius: 8,
+                  decoration: BoxDecoration(
-                    offset: const Offset(0, 2),
+                    color: Theme.of(context).colorScheme.surface,
+                    borderRadius: BorderRadius.circular(16.r),
+                    boxShadow: [
+                      BoxShadow(
+                        color: Colors.black.withOpacity(0.1),
+                        blurRadius: 8,
+                        offset: const Offset(0, 2),
+                      ),
+                    ],
                   ),
-                ],
+                  child: Column(
-              ),
+                    mainAxisSize: MainAxisSize.min,
-              child: Column(
+                    children: [
-                children: [
+                      if (showFillInstruction)
-                  Text(
+                        Text(
-                    'Fill in the blanks:',
+                          'Fill in the blanks:',
-                    style: Theme.of(context).textTheme.titleLarge?.copyWith(
+                          style: Theme.of(context).textTheme.titleLarge?.copyWith(
-                          fontWeight: FontWeight.w600,
+                                fontWeight: FontWeight.w600,
+                              ),
+                          textAlign: TextAlign.center,
                         ),
+                      if (showFillInstruction && widget.question.word.isNotEmpty)
+                        SizedBox(height: spacingAfterTitle),
+                      if (widget.question.word.isNotEmpty) ...[
+                        Text(
+                          widget.question.word,
+                          style: Theme.of(context).textTheme.titleLarge?.copyWith(
+                                fontWeight: FontWeight.bold,
+                                color: Theme.of(context).colorScheme.primary,
+                              ),
+                          textAlign: TextAlign.center,
+                        ),
+                      ],
+                      SizedBox(height: spacingAfterWord),
+                      _buildTemplateDisplay(),
+                    ],
+                  ),
+                ),
+              ),
+
+              // Buttons with images or text (if available)
+              if (widget.question.buttons.isNotEmpty) ...[
+                Flexible(
+                  child: _buildButtonsGrid(constraints),
+                ),
+                SizedBox(height: spacingAfterGrid),
+              ] else ...[
+                // Input field (only if no buttons)
+                Container(
+                  constraints: BoxConstraints(
+                    maxWidth: constraints.maxWidth * 0.8,
+                  ),
+                  child: TextField(
+                    controller: _controller,
+                    focusNode: _focusNode,
+                    decoration: InputDecoration(
+                      hintText: 'Type the missing letters...',
+                      border: OutlineInputBorder(
+                        borderRadius: BorderRadius.circular(12.r),
+                      ),
+                      filled: true,
+                      fillColor: Theme.of(context).colorScheme.surface,
+                      contentPadding: EdgeInsets.symmetric(
+                        horizontal: 16.w,
+                        vertical: 12.h,
+                      ),
+                    ),
+                    style: TextStyle(
+                      fontSize: 18.sp,
+                      letterSpacing: 2,
+                      fontWeight: FontWeight.w500,
+                    ),
                     textAlign: TextAlign.center,
+                    maxLength: widget.question.correctAnswer.length,
+                    onSubmitted: _submitAnswer,
                   ),
-                  if (widget.question.word.isNotEmpty) ...[
+                ),
-                    SizedBox(height: 16.h),
+                SizedBox(height: spacingAfterGrid),
-                    Text(
+              ],
-                      widget.question.word,
-                      style: Theme.of(context).textTheme.headlineSmall?.copyWith(
-                            fontWeight: FontWeight.bold,
-                            color: Theme.of(context).colorScheme.primary,
-                          ),
-                      textAlign: TextAlign.center,
-                    ),
-                  ],
-                  SizedBox(height: 16.h),
-                  _buildTemplateDisplay(),
-                ],
-              ),
-            ),
 
-            // Buttons with images or text (if available)
+              // Submit button
-            if (widget.question.buttons.isNotEmpty) ...[
+              ElevatedButton.icon(
-              _buildButtonsGrid(constraints),
+                onPressed: _currentAnswer.isNotEmpty ? _submitAnswer : null,
-              SizedBox(height: 24.h),
+                icon: const Icon(Icons.send),
-            ] else ...[
+                label: const Text('Submit Answer'),
-              // Input field (only if no buttons)
+                style: ElevatedButton.styleFrom(
-              Container(
+                  minimumSize: Size(200.w, 48.h),
-                constraints: BoxConstraints(
+                  textStyle: TextStyle(fontSize: 16.sp),
-                  maxWidth: constraints.maxWidth * 0.8,
-                ),
-                child: TextField(
-                  controller: _controller,
-                  focusNode: _focusNode,
-                  decoration: InputDecoration(
-                    hintText: 'Type the missing letters...',
-                    border: OutlineInputBorder(
-                      borderRadius: BorderRadius.circular(12.r),
-                    ),
-                    filled: true,
-                    fillColor: Theme.of(context).colorScheme.surface,
-                    contentPadding: EdgeInsets.symmetric(
-                      horizontal: 16.w,
-                      vertical: 12.h,
-                    ),
-                  ),
-                  style: TextStyle(
-                    fontSize: 18.sp,
-                    letterSpacing: 2,
-                    fontWeight: FontWeight.w500,
-                  ),
-                  textAlign: TextAlign.center,
-                  maxLength: widget.question.correctAnswer.length,
-                  onSubmitted: _submitAnswer,
                 ),
               ),
-              SizedBox(height: 24.h),
             ],
-
+          ),
-            // Submit button
-            ElevatedButton.icon(
-              onPressed: _currentAnswer.isNotEmpty ? _submitAnswer : null,
-              icon: const Icon(Icons.send),
-              label: const Text('Submit Answer'),
-              style: ElevatedButton.styleFrom(
-                minimumSize: Size(200.w, 48.h),
-                textStyle: TextStyle(fontSize: 16.sp),
-              ),
-            ),
-          ],
         );
       },
     );
@@ -187,6 +211,13 @@ class _InputLettersWidgetState extends State<InputLettersWidget> {
   List<Widget> _buildTemplateParts(String template, String currentInput) {
     final parts = <Widget>[];
     int inputIndex = 0;
+    
+    // Adapt sizes based on maxHeight
+    final isCompact = widget.maxHeight != null && widget.maxHeight! < 400;
+    final cellWidth = isCompact ? 24.w : 28.w;
+    final cellHeight = isCompact ? 36.h : 48.h;
+    final cellFontSize = isCompact ? 16.sp : 20.sp;
+    final blankCellWidth = isCompact ? 28.w : 32.w;
 
     for (int i = 0; i < template.length; i++) {
       final char = template[i];
@@ -198,8 +229,8 @@ class _InputLettersWidgetState extends State<InputLettersWidget> {
 
         parts.add(
           Container(
-            width: 32.w,
+            width: blankCellWidth,
-            height: 48.h,
+            height: cellHeight,
             margin: EdgeInsets.symmetric(horizontal: 2.w),
             decoration: BoxDecoration(
               border: Border.all(
@@ -215,7 +246,7 @@ class _InputLettersWidgetState extends State<InputLettersWidget> {
             child: Text(
               letter.toUpperCase(),
               style: TextStyle(
-                fontSize: 20.sp,
+                fontSize: cellFontSize,
                 fontWeight: FontWeight.bold,
                 color: Theme.of(context).colorScheme.primary,
                 fontFeatures: const [FontFeature.tabularFigures()],
@@ -232,14 +263,14 @@ class _InputLettersWidgetState extends State<InputLettersWidget> {
         // This is a regular character
         parts.add(
           Container(
-            width: 28.w,
+            width: cellWidth,
-            height: 48.h,
+            height: cellHeight,
             margin: EdgeInsets.symmetric(horizontal: 2.w),
             alignment: Alignment.center,
             child: Text(
               char,
               style: TextStyle(
-                fontSize: 20.sp,
+                fontSize: cellFontSize,
                 fontWeight: FontWeight.w500,
                 color: Theme.of(context).colorScheme.onSurface,
                 fontFeatures: const [FontFeature.tabularFigures()],
@@ -256,15 +287,19 @@ class _InputLettersWidgetState extends State<InputLettersWidget> {
   Widget _buildButtonsGrid(BoxConstraints constraints) {
     final hasImages = widget.question.buttons.any((b) => b.image != null);
     final crossAxisCount = constraints.maxWidth > 600 ? 4 : 3;
-    final childAspectRatio = hasImages ? 1.2 : 2.0;
+    final isCompact = widget.maxHeight != null && widget.maxHeight! < 400;
+    final childAspectRatio = hasImages 
+        ? (isCompact ? 1.0 : 1.2)
+        : (isCompact ? 2.0 : 2.0);
+    final spacing = isCompact ? 8.0 : 12.0;
 
     return GridView.builder(
       shrinkWrap: true,
       physics: const NeverScrollableScrollPhysics(),
       gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
         crossAxisCount: crossAxisCount,
-        crossAxisSpacing: 12,
+        crossAxisSpacing: spacing,
-        mainAxisSpacing: 12,
+        mainAxisSpacing: spacing,
         childAspectRatio: childAspectRatio,
       ),
       itemCount: widget.question.buttons.length,

mnemo_cards_web_v2/lib/presentation/widgets/game/match_widget.dart

@@ -9,10 +9,12 @@ import '../../../domain/models/game_question.dart';
 class MatchWidget extends StatefulWidget {
   const MatchWidget({
     required this.question,
+    this.maxHeight,
     super.key,
   });
 
   final MatchQuestion question;
+  final double? maxHeight;
 
   @override
   State<MatchWidget> createState() => _MatchWidgetState();
@@ -25,118 +27,146 @@ class _MatchWidgetState extends State<MatchWidget> {
 
   @override
   Widget build(BuildContext context) {
+    // Adapt spacing and padding based on maxHeight
+    final isCompact = widget.maxHeight != null && widget.maxHeight! < 500;
+    final instructionPadding = isCompact ? 12.w : 16.w;
+    final instructionMargin = isCompact ? 12.h : 16.h;
+    final connectionPadding = isCompact ? 12.w : 16.w;
+    final connectionMargin = isCompact ? 12.h : 16.h;
+    final spacingAfterColumns = isCompact ? 12.h : 16.h;
+    final instructionText = isCompact 
+        ? 'Connect matching items' 
+        : 'Connect the matching items by tapping them in order';
+    
     return LayoutBuilder(
       builder: (context, constraints) {
         final isWideScreen = constraints.maxWidth > 600;
 
-        return Column(
+        return ConstrainedBox(
-          children: [
+          constraints: widget.maxHeight != null
-            // Instructions
+              ? BoxConstraints(maxHeight: widget.maxHeight!)
-            Container(
+              : const BoxConstraints(),
-              padding: EdgeInsets.all(16.w),
+          child: Column(
-              margin: EdgeInsets.only(bottom: 24.h),
+            mainAxisSize: MainAxisSize.min,
-              decoration: BoxDecoration(
+            children: [
-                color: Theme.of(context).colorScheme.surface,
+              // Instructions
-                borderRadius: BorderRadius.circular(12.r),
-                boxShadow: [
-                  BoxShadow(
-                    color: Colors.black.withOpacity(0.1),
-                    blurRadius: 8,
-                    offset: const Offset(0, 2),
-                  ),
-                ],
-              ),
-              child: Text(
-                'Connect the matching items by tapping them in order',
-                style: Theme.of(context).textTheme.bodyLarge,
-                textAlign: TextAlign.center,
-              ),
-            ),
-
-            // Connection display
-            if (_connections.isNotEmpty) ...[
               Container(
-                padding: EdgeInsets.all(16.w),
+                padding: EdgeInsets.all(instructionPadding),
-                margin: EdgeInsets.only(bottom: 16.h),
+                margin: EdgeInsets.only(bottom: instructionMargin),
                 decoration: BoxDecoration(
-                  color: Theme.of(context).colorScheme.surfaceContainerHighest.withOpacity(0.3),
+                  color: Theme.of(context).colorScheme.surface,
                   borderRadius: BorderRadius.circular(12.r),
-                ),
+                  boxShadow: [
-                child: Column(
+                    BoxShadow(
-                  crossAxisAlignment: CrossAxisAlignment.start,
+                      color: Colors.black.withOpacity(0.1),
-                  children: [
+                      blurRadius: 8,
-                    Text(
+                      offset: const Offset(0, 2),
-                      'Connections:',
-                      style: Theme.of(context).textTheme.titleMedium?.copyWith(
-                            fontWeight: FontWeight.w600,
-                          ),
                     ),
-                    SizedBox(height: 8.h),
-                    ..._buildConnectionDisplay(),
                   ],
                 ),
+                child: Text(
+                  instructionText,
+                  style: Theme.of(context).textTheme.bodyLarge,
+                  textAlign: TextAlign.center,
+                ),
+              ),
+
+              // Connection display
+              if (_connections.isNotEmpty) ...[
+                Container(
+                  padding: EdgeInsets.all(connectionPadding),
+                  margin: EdgeInsets.only(bottom: connectionMargin),
+                  decoration: BoxDecoration(
+                    color: Theme.of(context).colorScheme.surfaceContainerHighest.withOpacity(0.3),
+                    borderRadius: BorderRadius.circular(12.r),
+                  ),
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    mainAxisSize: MainAxisSize.min,
+                    children: [
+                      Text(
+                        'Connected: ${_connections.length}/${widget.question.correctPairs.length}',
+                        style: Theme.of(context).textTheme.titleMedium?.copyWith(
+                              fontWeight: FontWeight.w600,
+                            ),
+                      ),
+                      if (!isCompact) ...[
+                        SizedBox(height: 8.h),
+                        ..._buildConnectionDisplay(),
+                      ],
+                    ],
+                  ),
+                ),
+              ],
+
+              // Two columns layout
+              Flexible(
+                child: isWideScreen
+                    ? Row(
+                        crossAxisAlignment: CrossAxisAlignment.start,
+                        children: [
+                          Expanded(child: _buildColumn(widget.question.leftItems, isLeft: true)),
+                          SizedBox(width: isCompact ? 16.w : 24.w),
+                          Expanded(child: _buildColumn(widget.question.rightItems, isLeft: false)),
+                        ],
+                      )
+                    : Column(
+                        children: [
+                          Text(
+                            'Left Column',
+                            style: Theme.of(context).textTheme.titleMedium?.copyWith(
+                                  fontWeight: FontWeight.w600,
+                                  color: Theme.of(context).colorScheme.primary,
+                                ),
+                            textAlign: TextAlign.center,
+                          ),
+                          SizedBox(height: isCompact ? 8.h : 12.h),
+                          Flexible(child: _buildColumn(widget.question.leftItems, isLeft: true)),
+                          SizedBox(height: isCompact ? 16.h : 24.h),
+                          Text(
+                            'Right Column',
+                            style: Theme.of(context).textTheme.titleMedium?.copyWith(
+                                  fontWeight: FontWeight.w600,
+                                  color: Theme.of(context).colorScheme.secondary,
+                                ),
+                            textAlign: TextAlign.center,
+                          ),
+                          SizedBox(height: isCompact ? 8.h : 12.h),
+                          Flexible(child: _buildColumn(widget.question.rightItems, isLeft: false)),
+                        ],
+                      ),
+              ),
+
+              SizedBox(height: spacingAfterColumns),
+
+              // Submit button
+              ElevatedButton.icon(
+                onPressed: _canSubmit ? _submitAnswer : null,
+                icon: const Icon(Icons.check_circle),
+                label: const Text('Submit Answer'),
+                style: ElevatedButton.styleFrom(
+                  minimumSize: Size(200.w, 48.h),
+                  textStyle: TextStyle(fontSize: 16.sp),
+                ),
               ),
             ],
-
+          ),
-            // Two columns layout
-            Expanded(
-              child: isWideScreen
-                  ? Row(
-                      crossAxisAlignment: CrossAxisAlignment.start,
-                      children: [
-                        Expanded(child: _buildColumn(widget.question.leftItems, isLeft: true)),
-                        SizedBox(width: 24.w),
-                        Expanded(child: _buildColumn(widget.question.rightItems, isLeft: false)),
-                      ],
-                    )
-                  : Column(
-                      children: [
-                        Text(
-                          'Left Column',
-                          style: Theme.of(context).textTheme.titleMedium?.copyWith(
-                                fontWeight: FontWeight.w600,
-                                color: Theme.of(context).colorScheme.primary,
-                              ),
-                          textAlign: TextAlign.center,
-                        ),
-                        SizedBox(height: 12.h),
-                        Expanded(child: _buildColumn(widget.question.leftItems, isLeft: true)),
-                        SizedBox(height: 24.h),
-                        Text(
-                          'Right Column',
-                          style: Theme.of(context).textTheme.titleMedium?.copyWith(
-                                fontWeight: FontWeight.w600,
-                                color: Theme.of(context).colorScheme.secondary,
-                              ),
-                          textAlign: TextAlign.center,
-                        ),
-                        SizedBox(height: 12.h),
-                        Expanded(child: _buildColumn(widget.question.rightItems, isLeft: false)),
-                      ],
-                    ),
-            ),
-
-            SizedBox(height: 24.h),
-
-            // Submit button
-            ElevatedButton.icon(
-              onPressed: _canSubmit ? _submitAnswer : null,
-              icon: const Icon(Icons.check_circle),
-              label: const Text('Submit Answer'),
-              style: ElevatedButton.styleFrom(
-                minimumSize: Size(200.w, 48.h),
-                textStyle: TextStyle(fontSize: 16.sp),
-              ),
-            ),
-          ],
         );
       },
     );
   }
 
   Widget _buildColumn(List<MatchItem> items, {required bool isLeft}) {
+    final isCompact = widget.maxHeight != null && widget.maxHeight! < 500;
+    final itemMargin = isCompact ? 4.h : 6.h;
+    final itemPadding = isCompact ? 8.w : 12.w;
+    final imageSize = isCompact ? 32.0 : 40.0;
+    final fontSize = isCompact ? 14.sp : 16.sp;
+    final iconSize = isCompact ? 18.sp : 20.sp;
+    
     return ListView.builder(
       itemCount: items.length,
+      itemExtent: isCompact ? 52.0 : 64.0, // Fixed item height for better performance
       itemBuilder: (context, index) {
         final item = items[index];
         final isSelected = isLeft
@@ -147,7 +177,7 @@ class _MatchWidgetState extends State<MatchWidget> {
             : _connections.containsValue(item.id);
 
         return Container(
-          margin: EdgeInsets.only(bottom: 8.h),
+          margin: EdgeInsets.only(bottom: itemMargin),
           child: Material(
             color: isConnected
                 ? Theme.of(context).colorScheme.primary.withOpacity(0.1)
@@ -159,7 +189,7 @@ class _MatchWidgetState extends State<MatchWidget> {
               onTap: isConnected ? null : () => _onItemTap(item.id, isLeft),
               borderRadius: BorderRadius.circular(12.r),
               child: Container(
-                padding: EdgeInsets.all(12.w),
+                padding: EdgeInsets.all(itemPadding),
                 decoration: BoxDecoration(
                   border: Border.all(
                     color: isConnected
@@ -175,8 +205,8 @@ class _MatchWidgetState extends State<MatchWidget> {
                   children: [
                     if (item.image != null) ...[
                       Container(
-                        width: 40.w,
+                        width: imageSize,
-                        height: 40.h,
+                        height: imageSize,
                         decoration: BoxDecoration(
                           borderRadius: BorderRadius.circular(8.r),
                           image: DecorationImage(
@@ -185,13 +215,13 @@ class _MatchWidgetState extends State<MatchWidget> {
                           ),
                         ),
                       ),
-                      SizedBox(width: 12.w),
+                      SizedBox(width: isCompact ? 8.w : 12.w),
                     ],
                     Expanded(
                       child: Text(
                         item.text,
                         style: TextStyle(
-                          fontSize: 16.sp,
+                          fontSize: fontSize,
                           fontWeight: isConnected ? FontWeight.w600 : FontWeight.normal,
                           color: isConnected
                               ? Theme.of(context).colorScheme.primary
@@ -204,7 +234,7 @@ class _MatchWidgetState extends State<MatchWidget> {
                       Icon(
                         Icons.check_circle,
                         color: Theme.of(context).colorScheme.primary,
-                        size: 20.sp,
+                        size: iconSize,
                       ),
                     ],
                   ],

mnemo_cards_web_v2/lib/presentation/widgets/game/matrix_widget.dart

@@ -1,5 +1,7 @@
 import 'dart:math' as math;
+import 'dart:typed_data';
 
+import 'package:audioplayers/audioplayers.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
 import 'package:yx_scope_flutter/yx_scope_flutter.dart';
@@ -12,19 +14,21 @@ import '../../../domain/models/matrix_image_select_answer.dart';
 ///
 /// Shows a N x N matrix of images, and the current target word (original)
 /// under the matrix. User clicks an image to answer:
-/// - correct: card flips (translation on the back) and disappears; target word updates
+/// - correct: card flips (showing original and translation on the back) and stays flipped; target word updates
 /// - wrong: card shakes + wrong sound; test continues
 class MatrixWidget extends StatefulWidget {
   const MatrixWidget({
     required this.question,
     this.onWrongAttempt,
     this.onCompleted,
+    this.maxHeight,
     super.key,
   });
 
   final MatrixQuestion question;
   final Future<void> Function()? onWrongAttempt;
   final Future<void> Function(MatrixImageSelectAnswer answer)? onCompleted;
+  final double? maxHeight;
 
   @override
   State<MatrixWidget> createState() => _MatrixWidgetState();
@@ -35,10 +39,8 @@ class _MatrixWidgetState extends State<MatrixWidget>
   static const _flipDuration = Duration(milliseconds: 450);
   static const _afterFlipHold = Duration(milliseconds: 650);
 
-  late math.Random _random;
   late List<MatrixCard?> _slots; // stable positions; null == removed
-  late String _targetCardId;
+  var _currentStageIndex = 0;
-  late String _targetWord;
 
   final _flipped = <String>{};
   final _correctIdsInOrder = <String>[];
@@ -48,6 +50,9 @@ class _MatrixWidgetState extends State<MatrixWidget>
   String? _shakingCardId;
   late final AnimationController _shakeController;
   late final Animation<double> _shakeOffset;
+  
+  AudioPlayer? _audioPlayer;
+  bool _isPlayingAudio = false;
 
   @override
   void initState() {
@@ -76,23 +81,78 @@ class _MatrixWidgetState extends State<MatrixWidget>
   }
 
   void _initFromQuestion(MatrixQuestion q) {
-    _random = math.Random(q.id.hashCode ^ q.matrixSize);
     _slots = q.cards.map<MatrixCard?>((c) => c).toList(growable: false);
     _flipped.clear();
     _correctIdsInOrder.clear();
     _wrongAttempts = 0;
     _isCompleting = false;
     _shakingCardId = null;
-    _targetCardId = q.initialTargetCardId;
+    _currentStageIndex = 0;
-    _targetWord = q.initialTargetWord;
+    
+    // Play audio for first stage if available
+    if (q.stages.isNotEmpty) {
+      _playStageAudio(q.stages[0]);
+    }
   }
 
   @override
   void dispose() {
     _shakeController.dispose();
+    _audioPlayer?.dispose();
     super.dispose();
   }
 
+  Future<void> _playStageAudio(MatrixStage stage) async {
+    if (stage.targetAudio == null || stage.targetAudio!.isEmpty) return;
+    
+    _audioPlayer ??= AudioPlayer();
+    
+    if (!mounted) return;
+    
+    // Get appScope before async operations
+    final appScope = ScopeProvider.of<AppScopeContainer>(context, listen: false);
+    if (appScope == null) {
+      debugPrint('MatrixWidget: Scope not available');
+      return;
+    }
+    
+    setState(() {
+      _isPlayingAudio = true;
+    });
+    
+    try {
+      await _audioPlayer!.stop();
+      
+      final audioValue = stage.targetAudio!;
+      Uint8List bytes;
+      
+      // Check if it's already a presigned URL (contains query params)
+      final uri = Uri.tryParse(audioValue);
+      if (uri != null && 
+          (uri.scheme == 'http' || uri.scheme == 'https') &&
+          uri.queryParameters.isNotEmpty) {
+        // Likely a presigned URL, download directly
+        bytes = await appScope.httpRepository.downloadBytesFromUrl(audioValue);
+      } else {
+        // Assume it's a UUID, use voice API endpoint
+        bytes = await appScope.httpRepository.getVoiceFileBytes(audioValue);
+      }
+      
+      if (!mounted) return;
+      
+      await _audioPlayer!.play(BytesSource(bytes));
+    } catch (e) {
+      debugPrint('MatrixWidget: Failed to play audio: $e');
+      // Could show error to user here if needed
+    } finally {
+      if (mounted) {
+        setState(() {
+          _isPlayingAudio = false;
+        });
+      }
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
     final theme = Theme.of(context);
@@ -110,78 +170,199 @@ class _MatrixWidgetState extends State<MatrixWidget>
             ...List<MatrixCard?>.filled(total - _slots.length, null),
           ];
 
+    // Calculate available height for grid (reserve space for target container)
+    // Target container: ~100-120px (compact) to 140-160px (full)
+    final targetContainerHeight = widget.maxHeight != null && widget.maxHeight! < 350 
+        ? 100.0 
+        : 140.0;
+    final spacingBetween = widget.maxHeight != null && widget.maxHeight! < 350 
+        ? 12.h 
+        : 16.h;
+    
+    final gridMaxHeight = widget.maxHeight != null 
+        ? widget.maxHeight! - targetContainerHeight - spacingBetween
+        : null;
+    
+    // Adapt spacing for grid cells
+    final cellSpacing = widget.maxHeight != null && widget.maxHeight! < 350 
+        ? 6.0 
+        : 10.0;
+    
+    // Adapt padding for target container
+    final targetPaddingH = widget.maxHeight != null && widget.maxHeight! < 350 
+        ? 16.w 
+        : 20.w;
+    final targetPaddingV = widget.maxHeight != null && widget.maxHeight! < 350 
+        ? 12.h 
+        : 16.h;
+
+    return ConstrainedBox(
+      constraints: widget.maxHeight != null
+          ? BoxConstraints(maxHeight: widget.maxHeight!)
+          : const BoxConstraints(),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.stretch,
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          Flexible(
+            child: ConstrainedBox(
+              constraints: gridMaxHeight != null
+                  ? BoxConstraints(maxHeight: gridMaxHeight)
+                  : const BoxConstraints(),
+              child: GridView.builder(
+                shrinkWrap: true,
+                physics: const NeverScrollableScrollPhysics(),
+                gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
+                  crossAxisCount: size,
+                  crossAxisSpacing: cellSpacing,
+                  mainAxisSpacing: cellSpacing,
+                  childAspectRatio: 1.0,
+                ),
+                itemCount: total,
+                itemBuilder: (context, index) {
+                  final card = slots[index];
+                  return _buildSlot(context, card);
+                },
+              ),
+            ),
+          ),
+          SizedBox(height: spacingBetween),
+          Container(
+            padding: EdgeInsets.symmetric(
+              horizontal: targetPaddingH,
+              vertical: targetPaddingV,
+            ),
+            decoration: BoxDecoration(
+              color: colorScheme.surface,
+              borderRadius: BorderRadius.circular(24.r),
+              border: Border.all(
+                color: colorScheme.primary,
+                width: 3,
+              ),
+              boxShadow: [
+                BoxShadow(
+                  color: colorScheme.shadow.withOpacity(0.3),
+                  blurRadius: 20,
+                  offset: const Offset(0, 10),
+                ),
+              ],
+            ),
+            child: Column(
+              mainAxisSize: MainAxisSize.min,
+              children: [
+                if (widget.question.text != null && widget.question.text!.isNotEmpty)
+                  Text(
+                    widget.question.text!,
+                    style: textTheme.labelLarge?.copyWith(
+                      color: colorScheme.onSurfaceVariant,
+                    ),
+                    textAlign: TextAlign.center,
+                  ),
+                if (widget.question.text != null && widget.question.text!.isNotEmpty)
+                  SizedBox(height: 8.h),
+                _buildTargetContent(context),
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildTargetContent(BuildContext context) {
+    final theme = Theme.of(context);
+    final textTheme = theme.textTheme;
+    final colorScheme = theme.colorScheme;
+    
+    final currentStage = _getCurrentStage();
+    if (currentStage == null) {
+      return const SizedBox.shrink();
+    }
+    
     return Column(
-      crossAxisAlignment: CrossAxisAlignment.stretch,
       children: [
-        GridView.builder(
+        // Audio button if audio is available
-          shrinkWrap: true,
+        if (currentStage.targetAudio != null && currentStage.targetAudio!.isNotEmpty)
-          physics: const NeverScrollableScrollPhysics(),
+          Padding(
-          gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
+            padding: EdgeInsets.only(bottom: 12.h),
-            crossAxisCount: size,
+            child: IconButton(
-            crossAxisSpacing: 10.w,
+              icon: _isPlayingAudio
-            mainAxisSpacing: 10.h,
+                  ? SizedBox(
-            childAspectRatio: 1.0,
+                      width: 24.w,
+                      height: 24.h,
+                      child: CircularProgressIndicator(
+                        strokeWidth: 2,
+                        valueColor: AlwaysStoppedAnimation<Color>(
+                          colorScheme.primary,
+                        ),
+                      ),
+                    )
+                  : Icon(
+                      Icons.volume_up,
+                      size: 32.sp,
+                      color: colorScheme.primary,
+                    ),
+              onPressed: _isPlayingAudio
+                  ? null
+                  : () => _playStageAudio(currentStage),
+            ),
           ),
-          itemCount: total,
+        // Target word
-          itemBuilder: (context, index) {
+        SelectableText(
-            final card = slots[index];
+          currentStage.targetWord,
-            return _buildSlot(context, card);
+          style: textTheme.titleLarge?.copyWith(
-          },
+            fontWeight: FontWeight.w700,
-        ),
-        SizedBox(height: 16.h),
-        Container(
-          padding: EdgeInsets.symmetric(horizontal: 14.w, vertical: 12.h),
-          decoration: BoxDecoration(
-            color: colorScheme.surfaceContainerHighest.withOpacity(0.35),
-            borderRadius: BorderRadius.circular(14.r),
-            border: Border.all(color: colorScheme.outlineVariant),
-          ),
-          child: Column(
-            children: [
-              Text(
-                'Найди слово:',
-                style: textTheme.labelLarge?.copyWith(
-                  color: colorScheme.onSurfaceVariant,
-                ),
-                textAlign: TextAlign.center,
-              ),
-              SizedBox(height: 6.h),
-              SelectableText(
-                _targetWord,
-                style: textTheme.titleLarge?.copyWith(
-                  fontWeight: FontWeight.w700,
-                ),
-                textAlign: TextAlign.center,
-              ),
-            ],
           ),
+          textAlign: TextAlign.center,
         ),
       ],
     );
   }
 
+  MatrixStage? _getCurrentStage() {
+    final stages = widget.question.stages;
+    if (stages.isEmpty) {
+      // Fallback to deprecated fields
+      if (widget.question.initialTargetCardId != null &&
+          widget.question.initialTargetWord != null) {
+        return MatrixStage(
+          targetCardId: widget.question.initialTargetCardId!,
+          targetWord: widget.question.initialTargetWord!,
+          targetAudio: null,
+        );
+      }
+      return null;
+    }
+    
+    if (_currentStageIndex >= stages.length) {
+      return null;
+    }
+    
+    return stages[_currentStageIndex];
+  }
+
   Widget _buildSlot(BuildContext context, MatrixCard? card) {
-    final colorScheme = Theme.of(context).colorScheme;
+    if (card == null) {
-    final isFlipped = card != null && _flipped.contains(card.id);
+      return AspectRatio(
-    final isShaking = card != null && _shakingCardId == card.id;
+        aspectRatio: 1,
+        child: DecoratedBox(
+          decoration: BoxDecoration(
+            borderRadius: BorderRadius.circular(24.r),
+          ),
+        ),
+      );
+    }
+
+    final isFlipped = _flipped.contains(card.id);
+    final isShaking = _shakingCardId == card.id;
 
     final base = AspectRatio(
       aspectRatio: 1,
-      child: card == null
+      child: _MatrixFlipCard(
-          ? DecoratedBox(
+        card: card,
-              decoration: BoxDecoration(
+        isFlipped: isFlipped,
-                borderRadius: BorderRadius.circular(14.r),
+        onTap: _isCompleting || isFlipped ? null : () => _onCardTap(card),
-                border: Border.all(
+      ),
-                  color: colorScheme.outlineVariant.withOpacity(0.7),
-                ),
-                color: colorScheme.surfaceContainerHighest.withOpacity(0.15),
-              ),
-            )
-          : _MatrixFlipCard(
-              card: card,
-              isFlipped: isFlipped,
-              onTap: _isCompleting ? null : () => _onCardTap(card),
-            ),
     );
 
     if (!isShaking) return base;
@@ -200,9 +381,12 @@ class _MatrixWidgetState extends State<MatrixWidget>
 
   Future<void> _onCardTap(MatrixCard card) async {
     if (_isCompleting) return;
-    if (_flipped.contains(card.id)) return;
+    if (_flipped.contains(card.id)) return; // Already flipped, ignore tap
 
-    if (card.id == _targetCardId) {
+    final currentStage = _getCurrentStage();
+    if (currentStage == null) return;
+
+    if (card.id == currentStage.targetCardId) {
       await _handleCorrect(card);
     } else {
       await _handleWrong(card);
@@ -234,25 +418,27 @@ class _MatrixWidgetState extends State<MatrixWidget>
 
     await Future<void>.delayed(_flipDuration + _afterFlipHold);
 
-    // Remove from matrix (keep slot stable -> set to null)
+    // Check if all cards are flipped or all stages completed
-    final idx = _slots.indexWhere((c) => c?.id == card.id);
+    final allFlipped = _slots
-    if (idx >= 0) {
+        .whereType<MatrixCard>()
-      setState(() {
+        .every((c) => _flipped.contains(c.id));
-        _slots[idx] = null;
+    final allStagesCompleted = _currentStageIndex >= widget.question.stages.length - 1;
-      });
+    
-    }
+    if (allFlipped || allStagesCompleted) {
-
-    final remaining = _slots.whereType<MatrixCard>().toList(growable: false);
-    if (remaining.isEmpty) {
       await _completeQuestion();
       return;
     }
 
-    final next = remaining[_random.nextInt(remaining.length)];
+    // Move to next stage
     setState(() {
-      _targetCardId = next.id;
+      _currentStageIndex++;
-      _targetWord = next.original;
     });
+    
+    // Play audio for next stage if available
+    final nextStage = _getCurrentStage();
+    if (nextStage != null) {
+      _playStageAudio(nextStage);
+    }
   }
 
   Future<void> _completeQuestion() async {
@@ -291,11 +477,10 @@ class _MatrixFlipCard extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     final colorScheme = Theme.of(context).colorScheme;
-    final textTheme = Theme.of(context).textTheme;
 
     return InkWell(
       onTap: onTap,
-      borderRadius: BorderRadius.circular(14.r),
+      borderRadius: BorderRadius.circular(24.r),
       child: TweenAnimationBuilder<double>(
         tween: Tween<double>(
           begin: 0,
@@ -312,46 +497,66 @@ class _MatrixFlipCard extends StatelessWidget {
           return Transform(
             transform: transform,
             alignment: Alignment.center,
-            child: ClipRRect(
+            child: Container(
-              borderRadius: BorderRadius.circular(14.r),
+              decoration: BoxDecoration(
-              child: DecoratedBox(
+                color: colorScheme.surface,
-                decoration: BoxDecoration(
+                borderRadius: BorderRadius.circular(24.r),
-                  color: colorScheme.surface,
+                border: Border.all(
-                  border: Border.all(color: colorScheme.outlineVariant),
+                  color: colorScheme.primary,
+                  width: 3,
                 ),
+                boxShadow: [
+                  BoxShadow(
+                    color: colorScheme.shadow.withOpacity(0.3),
+                    blurRadius: 20,
+                    offset: const Offset(0, 10),
+                  ),
+                ],
+              ),
+              child: ClipRRect(
+                borderRadius: BorderRadius.circular(21.r),
                 child: isBack
                     ? Transform(
                         alignment: Alignment.center,
                         transform: Matrix4.identity()..rotateY(math.pi),
                         child: Center(
                           child: Padding(
-                            padding: EdgeInsets.all(10.w),
+                            padding: EdgeInsets.all(24.w),
-                            child: Text(
+                            child: Column(
-                              card.translation,
+                              mainAxisAlignment: MainAxisAlignment.center,
-                              style: textTheme.titleMedium?.copyWith(
+                              children: [
-                                fontWeight: FontWeight.w700,
+                                if (card.original != null)
-                              ),
+                                  Text(
-                              textAlign: TextAlign.center,
+                                    card.original!,
-                              maxLines: 3,
+                                    style: TextStyle(
-                              overflow: TextOverflow.ellipsis,
+                                      fontSize: 28.sp,
+                                      fontWeight: FontWeight.w700,
+                                      color: colorScheme.onSurface,
+                                    ),
+                                    textAlign: TextAlign.center,
+                                    maxLines: 2,
+                                    overflow: TextOverflow.ellipsis,
+                                  ),
+                                if (card.original != null && card.translation != null)
+                                  SizedBox(height: 12.h),
+                                if (card.translation != null)
+                                  Text(
+                                    card.translation!,
+                                    style: TextStyle(
+                                      fontSize: 22.sp,
+                                      fontWeight: FontWeight.w400,
+                                      color: colorScheme.onSurface.withOpacity(0.5),
+                                    ),
+                                    textAlign: TextAlign.center,
+                                    maxLines: 2,
+                                    overflow: TextOverflow.ellipsis,
+                                  ),
+                              ],
                             ),
                           ),
                         ),
                       )
-                    : Image.network(
+                    : _buildCardFront(card, colorScheme),
-                        card.image, // Already contains presigned URL or objectId from tests_state_manager
-                        fit: BoxFit.cover,
-                        width: double.infinity,
-                        height: double.infinity,
-                        errorBuilder: (context, error, stackTrace) {
-                          return Center(
-                            child: Icon(
-                              Icons.image_not_supported,
-                              color: colorScheme.onSurfaceVariant,
-                            ),
-                          );
-                        },
-                      ),
               ),
             ),
           );
@@ -359,4 +564,123 @@ class _MatrixFlipCard extends StatelessWidget {
       ),
     );
   }
+
+  Widget _buildCardFront(MatrixCard card, ColorScheme colorScheme) {
+    final hasImage = card.image != null && card.image!.isNotEmpty;
+    final hasOriginal = card.original != null && card.original!.isNotEmpty;
+    final hasTranslation = card.translation != null && card.translation!.isNotEmpty;
+    final hasText = hasOriginal || hasTranslation;
+
+    // If only text (no image), show text centered and large
+    if (!hasImage && hasText) {
+      return Center(
+        child: Padding(
+          padding: EdgeInsets.all(24.w),
+          child: Column(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: [
+              if (hasOriginal)
+                Text(
+                  card.original!,
+                  style: TextStyle(
+                    fontSize: 28.sp,
+                    fontWeight: FontWeight.w700,
+                    color: colorScheme.onSurface,
+                  ),
+                  textAlign: TextAlign.center,
+                  maxLines: 2,
+                  overflow: TextOverflow.ellipsis,
+                ),
+              if (hasOriginal && hasTranslation) SizedBox(height: 8.h),
+              if (hasTranslation)
+                Text(
+                  card.translation!,
+                  style: TextStyle(
+                    fontSize: 22.sp,
+                    fontWeight: FontWeight.w400,
+                    color: colorScheme.onSurface.withOpacity(0.7),
+                  ),
+                  textAlign: TextAlign.center,
+                  maxLines: 2,
+                  overflow: TextOverflow.ellipsis,
+                ),
+            ],
+          ),
+        ),
+      );
+    }
+
+    // If only image (no text), show image full size
+    if (hasImage && !hasText) {
+      return Image.network(
+        card.image!,
+        fit: BoxFit.cover,
+        width: double.infinity,
+        errorBuilder: (context, error, stackTrace) {
+          return Center(
+            child: Icon(
+              Icons.image_not_supported,
+              color: colorScheme.onSurfaceVariant,
+            ),
+          );
+        },
+      );
+    }
+
+    // If both image and text, show text on top and image below
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.stretch,
+      children: [
+        if (hasText)
+          Padding(
+            padding: EdgeInsets.fromLTRB(12.w, 12.h, 12.w, 8.h),
+            child: Column(
+              children: [
+                if (hasOriginal)
+                  Text(
+                    card.original!,
+                    style: TextStyle(
+                      fontSize: 20.sp,
+                      fontWeight: FontWeight.w700,
+                      color: colorScheme.onSurface,
+                    ),
+                    textAlign: TextAlign.center,
+                    maxLines: 1,
+                    overflow: TextOverflow.ellipsis,
+                  ),
+                if (hasOriginal && hasTranslation) SizedBox(height: 4.h),
+                if (hasTranslation)
+                  Text(
+                    card.translation!,
+                    style: TextStyle(
+                      fontSize: 14.sp,
+                      fontWeight: FontWeight.w400,
+                      color: colorScheme.onSurface.withOpacity(0.5),
+                    ),
+                    textAlign: TextAlign.center,
+                    maxLines: 1,
+                    overflow: TextOverflow.ellipsis,
+                  ),
+              ],
+            ),
+          ),
+        if (hasImage)
+          Expanded(
+            child: Image.network(
+              card.image!,
+              fit: BoxFit.cover,
+              width: double.infinity,
+              errorBuilder: (context, error, stackTrace) {
+                return Center(
+                  child: Icon(
+                    Icons.image_not_supported,
+                    color: colorScheme.onSurfaceVariant,
+                  ),
+                );
+              },
+            ),
+          ),
+      ],
+    );
+  }
 }

mnemo_cards_web_v2/lib/presentation/widgets/game/progress_indicator.dart

@@ -1,6 +1,16 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
 
+/// Compactness mode for progress indicator
+enum ProgressIndicatorMode {
+  /// Full mode: shows all statistics (correct, time, accuracy)
+  full,
+  /// Compact mode: shows progress bar and question number with minimal stats
+  compact,
+  /// Mini mode: shows only progress bar and question number
+  mini,
+}
+
 /// Widget for displaying game progress
 class GameProgressIndicator extends StatelessWidget {
   const GameProgressIndicator({
@@ -8,6 +18,7 @@ class GameProgressIndicator extends StatelessWidget {
     required this.totalQuestions,
     required this.correctAnswers,
     required this.timeElapsed,
+    this.mode = ProgressIndicatorMode.full,
     super.key,
   });
 
@@ -15,14 +26,25 @@ class GameProgressIndicator extends StatelessWidget {
   final int totalQuestions;
   final int correctAnswers;
   final Duration timeElapsed;
+  final ProgressIndicatorMode mode;
 
   @override
   Widget build(BuildContext context) {
     final progress = currentQuestion / totalQuestions;
     final accuracy = currentQuestion > 0 ? correctAnswers / currentQuestion : 0.0;
 
+    // Adjust padding based on mode
+    final horizontalPadding = mode == ProgressIndicatorMode.mini ? 12.w : 16.w;
+    final verticalPadding = mode == ProgressIndicatorMode.mini ? 4.h : (mode == ProgressIndicatorMode.compact ? 6.h : 8.h);
+    final progressBarHeight = mode == ProgressIndicatorMode.mini ? 4.h : 6.h;
+    final showStats = mode == ProgressIndicatorMode.full;
+    final showPercentage = mode != ProgressIndicatorMode.mini;
+
     return Container(
-      padding: EdgeInsets.symmetric(horizontal: 16.w, vertical: 8.h),
+      padding: EdgeInsets.symmetric(
+        horizontal: horizontalPadding,
+        vertical: verticalPadding,
+      ),
       decoration: BoxDecoration(
         color: Theme.of(context).colorScheme.surface,
         borderRadius: BorderRadius.circular(16.r),
@@ -37,7 +59,7 @@ class GameProgressIndicator extends StatelessWidget {
       child: Column(
         mainAxisSize: MainAxisSize.min,
         children: [
-          // Progress bar
+          // Progress row with question number
           Row(
             children: [
               Text(
@@ -45,30 +67,34 @@ class GameProgressIndicator extends StatelessWidget {
                 style: Theme.of(context).textTheme.titleMedium?.copyWith(
                       fontWeight: FontWeight.bold,
                       color: Theme.of(context).colorScheme.primary,
+                      fontSize: mode == ProgressIndicatorMode.mini ? 14.sp : null,
                     ),
               ),
               Text(
                 ' / $totalQuestions',
                 style: Theme.of(context).textTheme.titleMedium?.copyWith(
                       color: Theme.of(context).colorScheme.onSurfaceVariant,
+                      fontSize: mode == ProgressIndicatorMode.mini ? 14.sp : null,
                     ),
               ),
-              const Spacer(),
+              if (showPercentage) ...[
-              Text(
+                const Spacer(),
-                '${(progress * 100).round()}%',
+                Text(
-                style: Theme.of(context).textTheme.bodyMedium?.copyWith(
+                  '${(progress * 100).round()}%',
-                      fontWeight: FontWeight.w500,
+                  style: Theme.of(context).textTheme.bodyMedium?.copyWith(
-                      color: Theme.of(context).colorScheme.onSurfaceVariant,
+                        fontWeight: FontWeight.w500,
-                    ),
+                        color: Theme.of(context).colorScheme.onSurfaceVariant,
-              ),
+                      ),
+                ),
+              ],
             ],
           ),
 
-          SizedBox(height: 4.h),
+          SizedBox(height: mode == ProgressIndicatorMode.mini ? 4.h : 4.h),
 
           // Progress bar
           Container(
-            height: 6.h,
+            height: progressBarHeight,
             decoration: BoxDecoration(
               color: Theme.of(context).colorScheme.surfaceContainerHighest,
               borderRadius: BorderRadius.circular(3.r),
@@ -90,35 +116,36 @@ class GameProgressIndicator extends StatelessWidget {
             ),
           ),
 
-          SizedBox(height: 8.h),
+          // Stats row (only in full mode)
-
+          if (showStats) ...[
-          // Stats row
+            SizedBox(height: 8.h),
-          Row(
+            Row(
-            mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+              mainAxisAlignment: MainAxisAlignment.spaceEvenly,
-            children: [
+              children: [
-              _buildStatItem(
+                _buildStatItem(
-                context: context,
+                  context: context,
-                icon: Icons.check_circle,
+                  icon: Icons.check_circle,
-                value: '$correctAnswers',
+                  value: '$correctAnswers',
-                label: 'Correct',
+                  label: 'Correct',
-                color: Colors.green,
+                  color: Colors.green,
-              ),
+                ),
-              _buildStatItem(
+                _buildStatItem(
-                context: context,
+                  context: context,
-                icon: Icons.schedule,
+                  icon: Icons.schedule,
-                value: _formatDuration(timeElapsed),
+                  value: _formatDuration(timeElapsed),
-                label: 'Time',
+                  label: 'Time',
-                color: Theme.of(context).colorScheme.primary,
+                  color: Theme.of(context).colorScheme.primary,
-              ),
+                ),
-              _buildStatItem(
+                _buildStatItem(
-                context: context,
+                  context: context,
-                icon: Icons.trending_up,
+                  icon: Icons.trending_up,
-                value: '${(accuracy * 100).round()}%',
+                  value: '${(accuracy * 100).round()}%',
-                label: 'Accuracy',
+                  label: 'Accuracy',
-                color: accuracy >= 0.8 ? Colors.green : accuracy >= 0.6 ? Colors.orange : Colors.red,
+                  color: accuracy >= 0.8 ? Colors.green : accuracy >= 0.6 ? Colors.orange : Colors.red,
-              ),
+                ),
-            ],
+              ],
-          ),
+            ),
+          ],
         ],
       ),
     );

mnemo_cards_web_v2/lib/presentation/widgets/game/question_display.dart

@@ -10,11 +10,13 @@ class QuestionDisplay extends StatelessWidget {
   const QuestionDisplay({
     required this.question,
     this.onPlayAudio,
+    this.maxHeight,
     super.key,
   });
 
   final GameQuestion question;
   final QuestionAudioPlayback? onPlayAudio;
+  final double? maxHeight;
 
   @override
   Widget build(BuildContext context) {
@@ -69,62 +71,93 @@ class QuestionDisplay extends StatelessWidget {
     String? audio,
   }) {
     final theme = Theme.of(context).textTheme;
+    
+    // Calculate available height for image (30-40% of maxHeight, min 120, max 250)
+    double? imageMaxHeight;
+    if (maxHeight != null) {
+      final imageHeight = maxHeight! * 0.35;
+      imageMaxHeight = imageHeight.clamp(120.0, 250.0);
+    } else {
+      imageMaxHeight = 200.h;
+    }
+    
+    // Calculate spacing based on available height
+    final spacingAfterImage = maxHeight != null && maxHeight! < 300 ? 8.h : 12.h;
+    final spacingAfterText = maxHeight != null && maxHeight! < 300 ? 6.h : 8.h;
+    
+    // Determine max lines for text based on available height
+    final maxLines = maxHeight != null && maxHeight! < 250 ? 3 : 5;
+    
+    // Adjust font size slightly on very small screens
+    final fontSize = maxHeight != null && maxHeight! < 200 ? 18.sp : 20.sp;
 
-    return Column(
+    return ConstrainedBox(
-      mainAxisAlignment: MainAxisAlignment.center,
+      constraints: maxHeight != null 
-      children: [
+          ? BoxConstraints(maxHeight: maxHeight!)
-        // Image display
+          : const BoxConstraints(),
-        if (image != null) ...[
+      child: Column(
-          Container(
+        mainAxisAlignment: MainAxisAlignment.center,
-            constraints: BoxConstraints(
+        mainAxisSize: MainAxisSize.min,
-              maxHeight: 200.h,
+        children: [
-              maxWidth: double.infinity,
+          // Image display
+          if (image != null) ...[
+            Flexible(
+              child: Container(
+                constraints: BoxConstraints(
+                  maxHeight: imageMaxHeight,
+                  maxWidth: double.infinity,
+                ),
+                child: Image.network(
+                  image,
+                  fit: BoxFit.contain,
+                  errorBuilder: (context, error, stackTrace) {
+                    return Container(
+                      height: 120.h,
+                      width: 120.w,
+                      decoration: BoxDecoration(
+                        color: Theme.of(context).colorScheme.surfaceContainerHighest,
+                        borderRadius: BorderRadius.circular(8.r),
+                      ),
+                      child: Icon(
+                        Icons.image_not_supported,
+                        size: 48.sp,
+                        color: Theme.of(context).colorScheme.onSurfaceVariant,
+                      ),
+                    );
+                  },
+                ),
+              ),
             ),
-            child: Image.network(
+            SizedBox(height: spacingAfterImage),
-              image,
+          ],
-              fit: BoxFit.contain,
-              errorBuilder: (context, error, stackTrace) {
-                return Container(
-                  height: 120.h,
-                  width: 120.w,
-                  decoration: BoxDecoration(
-                    color: Theme.of(context).colorScheme.surfaceContainerHighest,
-                    borderRadius: BorderRadius.circular(8.r),
-                  ),
-                  child: Icon(
-                    Icons.image_not_supported,
-                    size: 48.sp,
-                    color: Theme.of(context).colorScheme.onSurfaceVariant,
-                  ),
-                );
-              },
-            ),
-          ),
-          SizedBox(height: 16.h),
-        ],
 
-        // Text display
+          // Text display
-        if (text.isNotEmpty) ...[
+          if (text.isNotEmpty) ...[
-          Text(
+            Flexible(
-            text,
+              child: Text(
-            style: theme.headlineSmall?.copyWith(
+                text,
-              fontSize: 20.sp,
+                style: theme.headlineSmall?.copyWith(
-              height: 1.4,
+                  fontSize: fontSize,
-              fontWeight: FontWeight.w600,
+                  height: 1.4,
+                  fontWeight: FontWeight.w600,
+                ),
+                textAlign: TextAlign.center,
+                maxLines: maxLines,
+                overflow: TextOverflow.fade,
+              ),
             ),
-            textAlign: TextAlign.center,
+          ],
-          ),
-        ],
 
-        // Audio button
+          // Audio button
-        if (audio != null) ...[
+          if (audio != null) ...[
-          SizedBox(height: 12.h),
+            SizedBox(height: spacingAfterText),
-          _QuestionAudioButton(
+            _QuestionAudioButton(
-            audioUrl: audio,
+              audioUrl: audio,
-            onPlayAudio: onPlayAudio,
+              onPlayAudio: onPlayAudio,
-          ),
+            ),
+          ],
         ],
-      ],
+      ),
     );
   }
 }