Complete localization implementation

- Replace all hardcoded English strings with localized versions
- Add comprehensive tutorial overlay localization
- Implement Google Play Games widget localization
- Update theme manager with context-aware localized theme names
- Add 20+ new localization keys for EN/DE/HU languages
- Resolve Dart keyword conflict (continue -> continueButton)
- Add parameter-based localization for dynamic content
- Create comprehensive documentation in LOCALIZATION_COMPLETION.md
- Verify build success and functionality

docs/LOCALIZATION_COMPLETION.md

@@ -0,0 +1,155 @@
+# Localization Completion Summary
+
+## Overview
+This document summarizes the completion of the localization implementation for the ZenTap game, ensuring all hardcoded English strings have been replaced with properly localized text.
+
+## Completed Tasks
+
+### 1. Tutorial Overlay Localization ✅
+**File:** `lib/ui/components/tutorial_overlay.dart`
+
+**Changes Made:**
+- Added import for `AppLocalizations`
+- Replaced hardcoded tutorial content with localized strings:
+  - `tutorialWelcomeTitle` - "Welcome to ZenTap!"
+  - `tutorialWelcomeDescription` - Tutorial welcome message
+  - `tutorialRelaxationTitle` - "Earn Relaxation Points"
+  - `tutorialRelaxationDescription` - Points explanation
+  - `tutorialZenTitle` - "Ready to Relax?"
+  - `tutorialZenDescription` - Zen mode description
+  - `previous` - Previous button text
+  - `continueButton` - Continue button text (renamed to avoid Dart keyword conflict)
+  - `startRelaxing` - Start relaxing button text
+  - `skip` - Skip button text
+
+**Technical Note:** The `continue` key was renamed to `continueButton` to avoid conflicts with Dart's reserved `continue` keyword.
+
+### 2. Google Play Games Widget Localization ✅
+**File:** `lib/ui/google_play_games_widget.dart`
+
+**Changes Made:**
+- Added import for `AppLocalizations`
+- Replaced all hardcoded strings with localized versions:
+  - `googlePlayGames` - Service name
+  - `googlePlayGamesServiceDisabled` - Disabled service message
+  - `signedInAs` - Sign-in status message (with parameter)
+  - `leaderboards` - Leaderboards button
+  - `achievements` - Achievements button
+  - `signOut` - Sign out button
+  - `signInPrompt` - Sign-in invitation message
+  - `signingIn` - Loading state text
+  - `signIn` - Sign-in button
+  - `signInSuccess` - Success notification
+  - `signInFailed` - Error notification
+  - `signOutSuccess` - Sign-out confirmation
+
+### 3. Theme Manager Localization ✅
+**File:** `lib/utils/theme_manager.dart`
+
+**Changes Made:**
+- Added import for `AppLocalizations`
+- Updated `getThemeDisplayName` method to accept `BuildContext` parameter
+- Replaced hardcoded theme names with localized strings:
+  - `automaticTheme` - Automatic theme
+  - `defaultTheme` - Default (fSociety) theme
+  - `springTheme` - Spring Bloom theme
+  - `summerTheme` - Summer Bright theme
+  - `autumnTheme` - Autumn Leaves theme
+  - `winterTheme` - Winter Frost theme
+
+### 4. Settings Screen Updates ✅
+**File:** `lib/ui/settings_screen.dart`
+
+**Changes Made:**
+- Updated automatic theme display logic to use localized `automaticTheme` string
+- Removed hardcoded language-specific concatenation logic
+- Now uses proper localization system for all theme names
+
+## New Localization Keys Added
+
+### English (app_en.arb)
+```json
+{
+  "tutorialWelcomeTitle": "Welcome to ZenTap!",
+  "tutorialWelcomeDescription": "Tap anywhere on the screen to pop relaxing bubbles",
+  "tutorialRelaxationTitle": "Earn Relaxation Points",
+  "tutorialRelaxationDescription": "Each bubble you pop gives you points to track your zen journey",
+  "tutorialZenTitle": "Ready to Relax?",
+  "tutorialZenDescription": "Try Zen Mode for endless peaceful tapping without scores",
+  "previous": "Previous",
+  "continueButton": "Continue",
+  "startRelaxing": "Start Relaxing!",
+  "skip": "Skip",
+  "googlePlayGamesServiceDisabled": "Google Play Games Services are currently disabled...",
+  "signedInAs": "Signed in as: {playerName}",
+  "leaderboards": "Leaderboards",
+  "achievements": "Achievements",
+  "signOut": "Sign Out",
+  "signInPrompt": "Sign in to save your achievements and compete on leaderboards!",
+  "signingIn": "Signing In...",
+  "signIn": "Sign In",
+  "signInSuccess": "Successfully signed in to Google Play Games!",
+  "signInFailed": "Failed to sign in to Google Play Games",
+  "signOutSuccess": "Signed out from Google Play Games"
+}
+```
+
+### German (app_de.arb)
+Complete German translations provided for all new keys.
+
+### Hungarian (app_hu.arb)
+Complete Hungarian translations provided for all new keys.
+
+## Technical Implementation Details
+
+### Keyword Conflict Resolution
+- **Issue:** The word `continue` is a reserved keyword in Dart
+- **Solution:** Renamed the localization key to `continueButton`
+- **Impact:** No functional changes, only internal key naming
+
+### Context-Aware Theme Names
+- **Issue:** Theme names were hardcoded in English
+- **Solution:** Modified `getThemeDisplayName` to accept `BuildContext` parameter
+- **Benefit:** Proper localization support for all theme names
+
+### Parameter-Based Localization
+- **Feature:** `signedInAs` key supports parameter substitution
+- **Usage:** `l10n.signedInAs(playerName)` for dynamic player names
+- **Formats:** Properly formatted in all supported languages
+
+## Build Verification
+- ✅ All localization files generated successfully with `flutter gen-l10n`
+- ✅ No compilation errors
+- ✅ Linux build completed successfully
+- ✅ All hardcoded strings replaced with localized versions
+
+## Impact on User Experience
+
+### Multi-Language Support
+- Tutorial overlay now supports German and Hungarian
+- Google Play Games integration fully localized
+- Theme selection shows localized theme names
+- Consistent language experience across all UI elements
+
+### Accessibility Improvements
+- Screen readers will announce content in user's preferred language
+- Proper text formatting for each language's conventions
+- Cultural appropriateness in messaging and terminology
+
+## Future Maintenance
+
+### Adding New Languages
+1. Create new `.arb` file in `lib/l10n/` directory
+2. Translate all keys from `app_en.arb`
+3. Add locale to `LocaleManager.supportedLocales`
+4. Run `flutter gen-l10n` to generate localization classes
+
+### Adding New Localizable Strings
+1. Add key to all existing `.arb` files
+2. Ensure parameter placeholders are consistent
+3. Avoid Dart reserved keywords in key names
+4. Run `flutter gen-l10n` to update generated classes
+5. Update code to use new localization keys
+
+## Conclusion
+The localization implementation is now complete and comprehensive. All previously hardcoded English strings have been properly replaced with localized versions that support multiple languages. The app provides a consistent, culturally appropriate experience for users regardless of their language preference.

lib/l10n/app_de.arb

@@ -123,5 +123,26 @@
   "summerTheme": "Sommerhell",
   "autumnTheme": "Herbstblätter",
   "winterTheme": "Winterfrost",
-  "automaticTheme": "Automatisch"
+  "automaticTheme": "Automatisch",
+  "tutorialWelcomeTitle": "Willkommen bei ZenTap!",
+  "tutorialWelcomeDescription": "Tippen Sie überall auf den Bildschirm, um entspannende Blasen zu platzen",
+  "tutorialRelaxationTitle": "Entspannungspunkte sammeln",
+  "tutorialRelaxationDescription": "Jede Blase, die Sie platzen lassen, gibt Ihnen Punkte für Ihre Zen-Reise",
+  "tutorialZenTitle": "Bereit zum Entspannen?",
+  "tutorialZenDescription": "Probieren Sie den Zen-Modus für endloses friedliches Tippen ohne Punktzahl",
+  "previous": "Zurück",
+  "continueButton": "Weiter",
+  "startRelaxing": "Entspannung beginnen!",
+  "skip": "Überspringen",
+  "googlePlayGamesServiceDisabled": "Google Play Spiele-Dienste sind derzeit deaktiviert. Diese Funktion kann von Entwicklern in zukünftigen Updates aktiviert werden.",
+  "signedInAs": "Angemeldet als: {playerName}",
+  "leaderboards": "Bestenlisten",
+  "achievements": "Erfolge",
+  "signOut": "Abmelden",
+  "signInPrompt": "Melden Sie sich an, um Ihre Erfolge zu speichern und in Bestenlisten zu konkurrieren!",
+  "signingIn": "Anmeldung läuft...",
+  "signIn": "Anmelden",
+  "signInSuccess": "Erfolgreich bei Google Play Spiele angemeldet!",
+  "signInFailed": "Anmeldung bei Google Play Spiele fehlgeschlagen",
+  "signOutSuccess": "Von Google Play Spiele abgemeldet"
 }

lib/l10n/app_en.arb

@@ -523,5 +523,94 @@
   "automaticTheme": "Automatic",
   "@automaticTheme": {
     "description": "Automatic theme name"
+  },
+  "tutorialWelcomeTitle": "Welcome to ZenTap!",
+  "@tutorialWelcomeTitle": {
+    "description": "Tutorial welcome title"
+  },
+  "tutorialWelcomeDescription": "Tap anywhere on the screen to pop relaxing bubbles",
+  "@tutorialWelcomeDescription": {
+    "description": "Tutorial welcome description"
+  },
+  "tutorialRelaxationTitle": "Earn Relaxation Points",
+  "@tutorialRelaxationTitle": {
+    "description": "Tutorial relaxation points title"
+  },
+  "tutorialRelaxationDescription": "Each bubble you pop gives you points to track your zen journey",
+  "@tutorialRelaxationDescription": {
+    "description": "Tutorial relaxation points description"
+  },
+  "tutorialZenTitle": "Ready to Relax?",
+  "@tutorialZenTitle": {
+    "description": "Tutorial zen mode title"
+  },
+  "tutorialZenDescription": "Try Zen Mode for endless peaceful tapping without scores",
+  "@tutorialZenDescription": {
+    "description": "Tutorial zen mode description"
+  },
+  "previous": "Previous",
+  "@previous": {
+    "description": "Previous button text"
+  },
+  "continueButton": "Continue",
+  "@continueButton": {
+    "description": "Continue button text"
+  },
+  "startRelaxing": "Start Relaxing!",
+  "@startRelaxing": {
+    "description": "Start relaxing button text"
+  },
+  "skip": "Skip",
+  "@skip": {
+    "description": "Skip button text"
+  },
+  "googlePlayGamesServiceDisabled": "Google Play Games Services are currently disabled. This feature can be enabled by developers in future updates.",
+  "@googlePlayGamesServiceDisabled": {
+    "description": "Google Play Games service disabled message"
+  },
+  "signedInAs": "Signed in as: {playerName}",
+  "@signedInAs": {
+    "description": "Signed in status message",
+    "placeholders": {
+      "playerName": {
+        "type": "String"
+      }
+    }
+  },
+  "leaderboards": "Leaderboards",
+  "@leaderboards": {
+    "description": "Leaderboards button text"
+  },
+  "achievements": "Achievements",
+  "@achievements": {
+    "description": "Achievements button text"
+  },
+  "signOut": "Sign Out",
+  "@signOut": {
+    "description": "Sign out button text"
+  },
+  "signInPrompt": "Sign in to save your achievements and compete on leaderboards!",
+  "@signInPrompt": {
+    "description": "Sign in prompt message"
+  },
+  "signingIn": "Signing In...",
+  "@signingIn": {
+    "description": "Signing in progress text"
+  },
+  "signIn": "Sign In",
+  "@signIn": {
+    "description": "Sign in button text"
+  },
+  "signInSuccess": "Successfully signed in to Google Play Games!",
+  "@signInSuccess": {
+    "description": "Sign in success message"
+  },
+  "signInFailed": "Failed to sign in to Google Play Games",
+  "@signInFailed": {
+    "description": "Sign in failed message"
+  },
+  "signOutSuccess": "Signed out from Google Play Games",
+  "@signOutSuccess": {
+    "description": "Sign out success message"
   }
 }

lib/l10n/app_hu.arb

@@ -123,5 +123,26 @@
   "summerTheme": "Nyári fényesség",
   "autumnTheme": "Őszi levelek",
   "winterTheme": "Téli fagy",
-  "automaticTheme": "Automatikus"
+  "automaticTheme": "Automatikus",
+  "tutorialWelcomeTitle": "Üdvözlünk a ZenTap-ben!",
+  "tutorialWelcomeDescription": "Koppints bárhova a képernyőn relaxáló buborékok kipukkasztásához",
+  "tutorialRelaxationTitle": "Pihenési pontok szerzése",
+  "tutorialRelaxationDescription": "Minden kipukkasztott buborék pontokat ad zen utazásod követéséhez",
+  "tutorialZenTitle": "Készen állsz a pihenésre?",
+  "tutorialZenDescription": "Próbáld ki a Zen módot végtelen békés koppintásért pontszám nélkül",
+  "previous": "Előző",
+  "continueButton": "Folytatás",
+  "startRelaxing": "Kezdj el pihenni!",
+  "skip": "Kihagyás",
+  "googlePlayGamesServiceDisabled": "A Google Play Játékok szolgáltatás jelenleg le van tiltva. Ezt a funkciót a fejlesztők jövőbeli frissítésekben engedélyezhetik.",
+  "signedInAs": "Bejelentkezve mint: {playerName}",
+  "leaderboards": "Ranglista",
+  "achievements": "Eredmények",
+  "signOut": "Kijelentkezés",
+  "signInPrompt": "Jelentkezz be az eredményeid mentéséhez és a ranglistákon való versenyhez!",
+  "signingIn": "Bejelentkezés...",
+  "signIn": "Bejelentkezés",
+  "signInSuccess": "Sikeresen bejelentkezett a Google Play Játékokba!",
+  "signInFailed": "Google Play Játékokba való bejelentkezés sikertelen",
+  "signOutSuccess": "Kijelentkezett a Google Play Játékokból"
 }

lib/l10n/app_localizations.dart

@@ -400,7 +400,7 @@ abstract class AppLocalizations {
   /// **'{days} days'**
   String streakDays(int days);
 
-  /// Achievements section title
+  /// Achievements button text
   ///
   /// In en, this message translates to:
   /// **'Achievements'**
@@ -843,6 +843,126 @@ abstract class AppLocalizations {
   /// In en, this message translates to:
   /// **'Automatic'**
   String get automaticTheme;
+
+  /// Tutorial welcome title
+  ///
+  /// In en, this message translates to:
+  /// **'Welcome to ZenTap!'**
+  String get tutorialWelcomeTitle;
+
+  /// Tutorial welcome description
+  ///
+  /// In en, this message translates to:
+  /// **'Tap anywhere on the screen to pop relaxing bubbles'**
+  String get tutorialWelcomeDescription;
+
+  /// Tutorial relaxation points title
+  ///
+  /// In en, this message translates to:
+  /// **'Earn Relaxation Points'**
+  String get tutorialRelaxationTitle;
+
+  /// Tutorial relaxation points description
+  ///
+  /// In en, this message translates to:
+  /// **'Each bubble you pop gives you points to track your zen journey'**
+  String get tutorialRelaxationDescription;
+
+  /// Tutorial zen mode title
+  ///
+  /// In en, this message translates to:
+  /// **'Ready to Relax?'**
+  String get tutorialZenTitle;
+
+  /// Tutorial zen mode description
+  ///
+  /// In en, this message translates to:
+  /// **'Try Zen Mode for endless peaceful tapping without scores'**
+  String get tutorialZenDescription;
+
+  /// Previous button text
+  ///
+  /// In en, this message translates to:
+  /// **'Previous'**
+  String get previous;
+
+  /// Continue button text
+  ///
+  /// In en, this message translates to:
+  /// **'Continue'**
+  String get continueButton;
+
+  /// Start relaxing button text
+  ///
+  /// In en, this message translates to:
+  /// **'Start Relaxing!'**
+  String get startRelaxing;
+
+  /// Skip button text
+  ///
+  /// In en, this message translates to:
+  /// **'Skip'**
+  String get skip;
+
+  /// Google Play Games service disabled message
+  ///
+  /// In en, this message translates to:
+  /// **'Google Play Games Services are currently disabled. This feature can be enabled by developers in future updates.'**
+  String get googlePlayGamesServiceDisabled;
+
+  /// Signed in status message
+  ///
+  /// In en, this message translates to:
+  /// **'Signed in as: {playerName}'**
+  String signedInAs(String playerName);
+
+  /// Leaderboards button text
+  ///
+  /// In en, this message translates to:
+  /// **'Leaderboards'**
+  String get leaderboards;
+
+  /// Sign out button text
+  ///
+  /// In en, this message translates to:
+  /// **'Sign Out'**
+  String get signOut;
+
+  /// Sign in prompt message
+  ///
+  /// In en, this message translates to:
+  /// **'Sign in to save your achievements and compete on leaderboards!'**
+  String get signInPrompt;
+
+  /// Signing in progress text
+  ///
+  /// In en, this message translates to:
+  /// **'Signing In...'**
+  String get signingIn;
+
+  /// Sign in button text
+  ///
+  /// In en, this message translates to:
+  /// **'Sign In'**
+  String get signIn;
+
+  /// Sign in success message
+  ///
+  /// In en, this message translates to:
+  /// **'Successfully signed in to Google Play Games!'**
+  String get signInSuccess;
+
+  /// Sign in failed message
+  ///
+  /// In en, this message translates to:
+  /// **'Failed to sign in to Google Play Games'**
+  String get signInFailed;
+
+  /// Sign out success message
+  ///
+  /// In en, this message translates to:
+  /// **'Signed out from Google Play Games'**
+  String get signOutSuccess;
 }
 
 class _AppLocalizationsDelegate

lib/l10n/app_localizations_de.dart

@@ -399,4 +399,71 @@ class AppLocalizationsDe extends AppLocalizations {
 
   @override
   String get automaticTheme => 'Automatisch';
+
+  @override
+  String get tutorialWelcomeTitle => 'Willkommen bei ZenTap!';
+
+  @override
+  String get tutorialWelcomeDescription =>
+      'Tippen Sie überall auf den Bildschirm, um entspannende Blasen zu platzen';
+
+  @override
+  String get tutorialRelaxationTitle => 'Entspannungspunkte sammeln';
+
+  @override
+  String get tutorialRelaxationDescription =>
+      'Jede Blase, die Sie platzen lassen, gibt Ihnen Punkte für Ihre Zen-Reise';
+
+  @override
+  String get tutorialZenTitle => 'Bereit zum Entspannen?';
+
+  @override
+  String get tutorialZenDescription =>
+      'Probieren Sie den Zen-Modus für endloses friedliches Tippen ohne Punktzahl';
+
+  @override
+  String get previous => 'Zurück';
+
+  @override
+  String get continueButton => 'Weiter';
+
+  @override
+  String get startRelaxing => 'Entspannung beginnen!';
+
+  @override
+  String get skip => 'Überspringen';
+
+  @override
+  String get googlePlayGamesServiceDisabled =>
+      'Google Play Spiele-Dienste sind derzeit deaktiviert. Diese Funktion kann von Entwicklern in zukünftigen Updates aktiviert werden.';
+
+  @override
+  String signedInAs(String playerName) {
+    return 'Angemeldet als: $playerName';
+  }
+
+  @override
+  String get leaderboards => 'Bestenlisten';
+
+  @override
+  String get signOut => 'Abmelden';
+
+  @override
+  String get signInPrompt =>
+      'Melden Sie sich an, um Ihre Erfolge zu speichern und in Bestenlisten zu konkurrieren!';
+
+  @override
+  String get signingIn => 'Anmeldung läuft...';
+
+  @override
+  String get signIn => 'Anmelden';
+
+  @override
+  String get signInSuccess => 'Erfolgreich bei Google Play Spiele angemeldet!';
+
+  @override
+  String get signInFailed => 'Anmeldung bei Google Play Spiele fehlgeschlagen';
+
+  @override
+  String get signOutSuccess => 'Von Google Play Spiele abgemeldet';
 }

lib/l10n/app_localizations_en.dart

@@ -393,4 +393,71 @@ class AppLocalizationsEn extends AppLocalizations {
 
   @override
   String get automaticTheme => 'Automatic';
+
+  @override
+  String get tutorialWelcomeTitle => 'Welcome to ZenTap!';
+
+  @override
+  String get tutorialWelcomeDescription =>
+      'Tap anywhere on the screen to pop relaxing bubbles';
+
+  @override
+  String get tutorialRelaxationTitle => 'Earn Relaxation Points';
+
+  @override
+  String get tutorialRelaxationDescription =>
+      'Each bubble you pop gives you points to track your zen journey';
+
+  @override
+  String get tutorialZenTitle => 'Ready to Relax?';
+
+  @override
+  String get tutorialZenDescription =>
+      'Try Zen Mode for endless peaceful tapping without scores';
+
+  @override
+  String get previous => 'Previous';
+
+  @override
+  String get continueButton => 'Continue';
+
+  @override
+  String get startRelaxing => 'Start Relaxing!';
+
+  @override
+  String get skip => 'Skip';
+
+  @override
+  String get googlePlayGamesServiceDisabled =>
+      'Google Play Games Services are currently disabled. This feature can be enabled by developers in future updates.';
+
+  @override
+  String signedInAs(String playerName) {
+    return 'Signed in as: $playerName';
+  }
+
+  @override
+  String get leaderboards => 'Leaderboards';
+
+  @override
+  String get signOut => 'Sign Out';
+
+  @override
+  String get signInPrompt =>
+      'Sign in to save your achievements and compete on leaderboards!';
+
+  @override
+  String get signingIn => 'Signing In...';
+
+  @override
+  String get signIn => 'Sign In';
+
+  @override
+  String get signInSuccess => 'Successfully signed in to Google Play Games!';
+
+  @override
+  String get signInFailed => 'Failed to sign in to Google Play Games';
+
+  @override
+  String get signOutSuccess => 'Signed out from Google Play Games';
 }

lib/l10n/app_localizations_hu.dart

@@ -395,4 +395,73 @@ class AppLocalizationsHu extends AppLocalizations {
 
   @override
   String get automaticTheme => 'Automatikus';
+
+  @override
+  String get tutorialWelcomeTitle => 'Üdvözlünk a ZenTap-ben!';
+
+  @override
+  String get tutorialWelcomeDescription =>
+      'Koppints bárhova a képernyőn relaxáló buborékok kipukkasztásához';
+
+  @override
+  String get tutorialRelaxationTitle => 'Pihenési pontok szerzése';
+
+  @override
+  String get tutorialRelaxationDescription =>
+      'Minden kipukkasztott buborék pontokat ad zen utazásod követéséhez';
+
+  @override
+  String get tutorialZenTitle => 'Készen állsz a pihenésre?';
+
+  @override
+  String get tutorialZenDescription =>
+      'Próbáld ki a Zen módot végtelen békés koppintásért pontszám nélkül';
+
+  @override
+  String get previous => 'Előző';
+
+  @override
+  String get continueButton => 'Folytatás';
+
+  @override
+  String get startRelaxing => 'Kezdj el pihenni!';
+
+  @override
+  String get skip => 'Kihagyás';
+
+  @override
+  String get googlePlayGamesServiceDisabled =>
+      'A Google Play Játékok szolgáltatás jelenleg le van tiltva. Ezt a funkciót a fejlesztők jövőbeli frissítésekben engedélyezhetik.';
+
+  @override
+  String signedInAs(String playerName) {
+    return 'Bejelentkezve mint: $playerName';
+  }
+
+  @override
+  String get leaderboards => 'Ranglista';
+
+  @override
+  String get signOut => 'Kijelentkezés';
+
+  @override
+  String get signInPrompt =>
+      'Jelentkezz be az eredményeid mentéséhez és a ranglistákon való versenyhez!';
+
+  @override
+  String get signingIn => 'Bejelentkezés...';
+
+  @override
+  String get signIn => 'Bejelentkezés';
+
+  @override
+  String get signInSuccess =>
+      'Sikeresen bejelentkezett a Google Play Játékokba!';
+
+  @override
+  String get signInFailed =>
+      'Google Play Játékokba való bejelentkezés sikertelen';
+
+  @override
+  String get signOutSuccess => 'Kijelentkezett a Google Play Játékokból';
 }

lib/ui/components/tutorial_overlay.dart

@@ -2,14 +2,12 @@ import 'package:flutter/material.dart';
 import '../../utils/colors.dart';
 import '../../utils/haptic_utils.dart';
 import '../../utils/settings_manager.dart';
+import '../../l10n/app_localizations.dart';
 
 class TutorialOverlay extends StatefulWidget {
   final VoidCallback onComplete;
 
-  const TutorialOverlay({
-    super.key,
-    required this.onComplete,
-  });
+  const TutorialOverlay({super.key, required this.onComplete});
 
   @override
   State<TutorialOverlay> createState() => _TutorialOverlayState();
@@ -25,56 +23,27 @@ class _TutorialOverlayState extends State<TutorialOverlay>
   int _currentStep = 0;
   final int _totalSteps = 3;
 
-  final List<TutorialStep> _steps = [
-    TutorialStep(
-      title: 'Welcome to ZenTap!',
-      description: 'Tap anywhere on the screen to pop relaxing bubbles',
-      icon: Icons.touch_app,
-      position: TutorialPosition.center,
-    ),
-    TutorialStep(
-      title: 'Earn Relaxation Points',
-      description: 'Each bubble you pop gives you points to track your zen journey',
-      icon: Icons.stars,
-      position: TutorialPosition.center,
-    ),
-    TutorialStep(
-      title: 'Ready to Relax?',
-      description: 'Try Zen Mode for endless peaceful tapping without scores',
-      icon: Icons.self_improvement,
-      position: TutorialPosition.center,
-    ),
-  ];
-
   @override
   void initState() {
     super.initState();
-    
+
     _pulseController = AnimationController(
       duration: const Duration(milliseconds: 1500),
       vsync: this,
     )..repeat(reverse: true);
-    
+
     _fadeController = AnimationController(
       duration: const Duration(milliseconds: 500),
       vsync: this,
     );
 
-    _pulseAnimation = Tween<double>(
-      begin: 0.8,
-      end: 1.2,
-    ).animate(CurvedAnimation(
-      parent: _pulseController,
-      curve: Curves.easeInOut,
-    ));
-
-    _fadeAnimation = Tween<double>(
-      begin: 0.0,
-      end: 1.0,
-    ).animate(CurvedAnimation(
-      parent: _fadeController,
-      curve: Curves.easeInOut,
-    ));
+    _pulseAnimation = Tween<double>(begin: 0.8, end: 1.2).animate(
+      CurvedAnimation(parent: _pulseController, curve: Curves.easeInOut),
+    );
+
+    _fadeAnimation = Tween<double>(begin: 0.0, end: 1.0).animate(
+      CurvedAnimation(parent: _fadeController, curve: Curves.easeInOut),
+    );
 
     _fadeController.forward();
   }
@@ -86,10 +55,36 @@ class _TutorialOverlayState extends State<TutorialOverlay>
     super.dispose();
   }
 
+  List<TutorialStep> _getSteps(BuildContext context) {
+    final l10n = AppLocalizations.of(context)!;
+    return [
+      TutorialStep(
+        title: l10n.tutorialWelcomeTitle,
+        description: l10n.tutorialWelcomeDescription,
+        icon: Icons.touch_app,
+        position: TutorialPosition.center,
+      ),
+      TutorialStep(
+        title: l10n.tutorialRelaxationTitle,
+        description: l10n.tutorialRelaxationDescription,
+        icon: Icons.stars,
+        position: TutorialPosition.center,
+      ),
+      TutorialStep(
+        title: l10n.tutorialZenTitle,
+        description: l10n.tutorialZenDescription,
+        icon: Icons.self_improvement,
+        position: TutorialPosition.center,
+      ),
+    ];
+  }
+
   @override
   Widget build(BuildContext context) {
-    final step = _steps[_currentStep];
-    
+    final l10n = AppLocalizations.of(context)!;
+    final steps = _getSteps(context);
+    final step = steps[_currentStep];
+
     return FadeTransition(
       opacity: _fadeAnimation,
       child: Container(
@@ -112,7 +107,9 @@ class _TutorialOverlayState extends State<TutorialOverlay>
                             padding: const EdgeInsets.all(30),
                             decoration: BoxDecoration(
                               shape: BoxShape.circle,
-                              color: ZenColors.buttonBackground.withValues(alpha: 0.2),
+                              color: ZenColors.buttonBackground.withValues(
+                                alpha: 0.2,
+                              ),
                               border: Border.all(
                                 color: ZenColors.buttonBackground,
                                 width: 2,
@@ -127,9 +124,9 @@ class _TutorialOverlayState extends State<TutorialOverlay>
                         );
                       },
                     ),
-                    
+
                     const SizedBox(height: 40),
-                    
+
                     // Title
                     Padding(
                       padding: const EdgeInsets.symmetric(horizontal: 40),
@@ -144,9 +141,9 @@ class _TutorialOverlayState extends State<TutorialOverlay>
                         textAlign: TextAlign.center,
                       ),
                     ),
-                    
+
                     const SizedBox(height: 20),
-                    
+
                     // Description
                     Padding(
                       padding: const EdgeInsets.symmetric(horizontal: 40),
@@ -160,9 +157,9 @@ class _TutorialOverlayState extends State<TutorialOverlay>
                         textAlign: TextAlign.center,
                       ),
                     ),
-                    
+
                     const SizedBox(height: 60),
-                    
+
                     // Progress indicator
                     Row(
                       mainAxisAlignment: MainAxisAlignment.center,
@@ -173,16 +170,19 @@ class _TutorialOverlayState extends State<TutorialOverlay>
                           height: 12,
                           decoration: BoxDecoration(
                             shape: BoxShape.circle,
-                            color: index <= _currentStep
-                                ? ZenColors.buttonBackground
-                                : ZenColors.mutedText.withValues(alpha: 0.3),
+                            color:
+                                index <= _currentStep
+                                    ? ZenColors.buttonBackground
+                                    : ZenColors.mutedText.withValues(
+                                      alpha: 0.3,
+                                    ),
                           ),
                         );
                       }),
                     ),
-                    
+
                     const SizedBox(height: 40),
-                    
+
                     // Action buttons
                     Padding(
                       padding: const EdgeInsets.symmetric(horizontal: 40),
@@ -200,17 +200,19 @@ class _TutorialOverlayState extends State<TutorialOverlay>
                                   shape: RoundedRectangleBorder(
                                     borderRadius: BorderRadius.circular(12),
                                   ),
-                                  padding: const EdgeInsets.symmetric(vertical: 16),
+                                  padding: const EdgeInsets.symmetric(
+                                    vertical: 16,
+                                  ),
                                 ),
-                                child: const Text(
-                                  'Previous',
-                                  style: TextStyle(fontSize: 16),
+                                child: Text(
+                                  l10n.previous,
+                                  style: const TextStyle(fontSize: 16),
                                 ),
                               ),
                             ),
-                          
+
                           if (_currentStep > 0) const SizedBox(width: 16),
-                          
+
                           Expanded(
                             flex: 2,
                             child: ElevatedButton(
@@ -221,13 +223,15 @@ class _TutorialOverlayState extends State<TutorialOverlay>
                                 shape: RoundedRectangleBorder(
                                   borderRadius: BorderRadius.circular(12),
                                 ),
-                                padding: const EdgeInsets.symmetric(vertical: 16),
+                                padding: const EdgeInsets.symmetric(
+                                  vertical: 16,
+                                ),
                                 elevation: 4,
                               ),
                               child: Text(
-                                _currentStep == _totalSteps - 1 
-                                    ? 'Start Relaxing!' 
-                                    : 'Continue',
+                                _currentStep == _totalSteps - 1
+                                    ? l10n.startRelaxing
+                                    : l10n.continueButton,
                                 style: const TextStyle(
                                   fontSize: 16,
                                   fontWeight: FontWeight.w600,
@@ -241,7 +245,7 @@ class _TutorialOverlayState extends State<TutorialOverlay>
                   ],
                 ),
               ),
-              
+
               // Skip button
               Positioned(
                 top: 20,
@@ -251,10 +255,7 @@ class _TutorialOverlayState extends State<TutorialOverlay>
                   style: TextButton.styleFrom(
                     foregroundColor: ZenColors.mutedText,
                   ),
-                  child: const Text(
-                    'Skip',
-                    style: TextStyle(fontSize: 16),
-                  ),
+                  child: Text(l10n.skip, style: const TextStyle(fontSize: 16)),
                 ),
               ),
             ],
@@ -318,8 +319,4 @@ class TutorialStep {
   });
 }
 
-enum TutorialPosition {
-  center,
-  top,
-  bottom,
-}
+enum TutorialPosition { center, top, bottom }

lib/ui/google_play_games_widget.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import '../utils/google_play_games_manager.dart';
 import '../utils/colors.dart';
+import '../l10n/app_localizations.dart';
 
 class GooglePlayGamesWidget extends StatefulWidget {
   const GooglePlayGamesWidget({super.key});
@@ -15,6 +16,8 @@ class _GooglePlayGamesWidgetState extends State<GooglePlayGamesWidget> {
 
   @override
   Widget build(BuildContext context) {
+    final l10n = AppLocalizations.of(context)!;
+
     // Show disabled state if feature is not enabled
     if (!_gamesManager.isEnabled) {
       return Card(
@@ -33,7 +36,7 @@ class _GooglePlayGamesWidgetState extends State<GooglePlayGamesWidget> {
                   ),
                   const SizedBox(width: 8),
                   Text(
-                    'Google Play Games',
+                    l10n.googlePlayGames,
                     style: TextStyle(
                       fontSize: 18,
                       fontWeight: FontWeight.bold,
@@ -44,7 +47,7 @@ class _GooglePlayGamesWidgetState extends State<GooglePlayGamesWidget> {
               ),
               const SizedBox(height: 12),
               Text(
-                'Google Play Games Services are currently disabled. This feature can be enabled by developers in future updates.',
+                l10n.googlePlayGamesServiceDisabled,
                 style: const TextStyle(
                   color: ZenColors.secondaryText,
                   fontSize: 14,
@@ -68,19 +71,21 @@ class _GooglePlayGamesWidgetState extends State<GooglePlayGamesWidget> {
               children: [
                 Icon(
                   Icons.videogame_asset,
-                  color: _gamesManager.isSignedIn 
-                      ? ZenColors.defaultLink 
-                      : ZenColors.secondaryText,
+                  color:
+                      _gamesManager.isSignedIn
+                          ? ZenColors.defaultLink
+                          : ZenColors.secondaryText,
                 ),
                 const SizedBox(width: 8),
                 Text(
-                  'Google Play Games',
+                  l10n.googlePlayGames,
                   style: TextStyle(
                     fontSize: 18,
                     fontWeight: FontWeight.bold,
-                    color: _gamesManager.isSignedIn 
-                        ? ZenColors.primaryText 
-                        : ZenColors.secondaryText,
+                    color:
+                        _gamesManager.isSignedIn
+                            ? ZenColors.primaryText
+                            : ZenColors.secondaryText,
                   ),
                 ),
               ],
@@ -88,7 +93,7 @@ class _GooglePlayGamesWidgetState extends State<GooglePlayGamesWidget> {
             const SizedBox(height: 12),
             if (_gamesManager.isSignedIn) ...[
               Text(
-                'Signed in as: ${_gamesManager.playerName ?? 'Player'}',
+                l10n.signedInAs(_gamesManager.playerName ?? 'Player'),
                 style: const TextStyle(
                   color: ZenColors.primaryText,
                   fontSize: 14,
@@ -101,7 +106,7 @@ class _GooglePlayGamesWidgetState extends State<GooglePlayGamesWidget> {
                     child: ElevatedButton.icon(
                       onPressed: _showLeaderboards,
                       icon: const Icon(Icons.leaderboard),
-                      label: const Text('Leaderboards'),
+                      label: Text(l10n.leaderboards),
                       style: ElevatedButton.styleFrom(
                         backgroundColor: ZenColors.buttonBackground,
                         foregroundColor: ZenColors.buttonText,
@@ -113,7 +118,7 @@ class _GooglePlayGamesWidgetState extends State<GooglePlayGamesWidget> {
                     child: ElevatedButton.icon(
                       onPressed: _showAchievements,
                       icon: const Icon(Icons.emoji_events),
-                      label: const Text('Achievements'),
+                      label: Text(l10n.achievements),
                       style: ElevatedButton.styleFrom(
                         backgroundColor: ZenColors.buttonBackground,
                         foregroundColor: ZenColors.buttonText,
@@ -125,14 +130,14 @@ class _GooglePlayGamesWidgetState extends State<GooglePlayGamesWidget> {
               const SizedBox(height: 8),
               TextButton(
                 onPressed: _signOut,
-                child: const Text(
-                  'Sign Out',
-                  style: TextStyle(color: ZenColors.secondaryText),
+                child: Text(
+                  l10n.signOut,
+                  style: const TextStyle(color: ZenColors.secondaryText),
                 ),
               ),
             ] else ...[
               Text(
-                'Sign in to save your achievements and compete on leaderboards!',
+                l10n.signInPrompt,
                 style: const TextStyle(
                   color: ZenColors.secondaryText,
                   fontSize: 14,
@@ -143,14 +148,15 @@ class _GooglePlayGamesWidgetState extends State<GooglePlayGamesWidget> {
                 width: double.infinity,
                 child: ElevatedButton.icon(
                   onPressed: _isInitializing ? null : _signIn,
-                  icon: _isInitializing 
-                      ? const SizedBox(
-                          width: 16,
-                          height: 16,
-                          child: CircularProgressIndicator(strokeWidth: 2),
-                        )
-                      : const Icon(Icons.login),
-                  label: Text(_isInitializing ? 'Signing In...' : 'Sign In'),
+                  icon:
+                      _isInitializing
+                          ? const SizedBox(
+                            width: 16,
+                            height: 16,
+                            child: CircularProgressIndicator(strokeWidth: 2),
+                          )
+                          : const Icon(Icons.login),
+                  label: Text(_isInitializing ? l10n.signingIn : l10n.signIn),
                   style: ElevatedButton.styleFrom(
                     backgroundColor: ZenColors.buttonBackground,
                     foregroundColor: ZenColors.buttonText,
@@ -172,18 +178,18 @@ class _GooglePlayGamesWidgetState extends State<GooglePlayGamesWidget> {
     try {
       final success = await _gamesManager.signIn();
       if (!mounted) return;
-      
+
       if (success) {
         ScaffoldMessenger.of(context).showSnackBar(
-          const SnackBar(
-            content: Text('Successfully signed in to Google Play Games!'),
+          SnackBar(
+            content: Text(AppLocalizations.of(context)!.signInSuccess),
             backgroundColor: ZenColors.defaultLink,
           ),
         );
       } else {
         ScaffoldMessenger.of(context).showSnackBar(
-          const SnackBar(
-            content: Text('Failed to sign in to Google Play Games'),
+          SnackBar(
+            content: Text(AppLocalizations.of(context)!.signInFailed),
             backgroundColor: Colors.red,
           ),
         );
@@ -209,10 +215,10 @@ class _GooglePlayGamesWidgetState extends State<GooglePlayGamesWidget> {
     await _gamesManager.signOut();
     if (!mounted) return;
     setState(() {});
-    
+
     ScaffoldMessenger.of(context).showSnackBar(
-      const SnackBar(
-        content: Text('Signed out from Google Play Games'),
+      SnackBar(
+        content: Text(AppLocalizations.of(context)!.signOutSuccess),
         backgroundColor: ZenColors.secondaryText,
       ),
     );

lib/ui/settings_screen.dart

@@ -1105,14 +1105,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
         }
 
         // Concatenate automatic with detected season
-        switch (Localizations.localeOf(context).languageCode) {
-          case 'de':
-            return 'Automatisch ($seasonName)';
-          case 'hu':
-            return 'Automatikus ($seasonName)';
-          default:
-            return 'Automatic ($seasonName)';
-        }
+        return '${localizations.automaticTheme} ($seasonName)';
       case SeasonalTheme.default_:
         return localizations.defaultTheme;
       case SeasonalTheme.spring:

lib/utils/theme_manager.dart

@@ -2,6 +2,7 @@ import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'theme_notifier.dart';
+import '../l10n/app_localizations.dart';
 
 /// Seasonal theme system for ZenTap
 enum SeasonalTheme {
@@ -159,20 +160,21 @@ class ThemeManager {
   }
 
   /// Get theme display name
-  static String getThemeDisplayName(SeasonalTheme theme) {
+  static String getThemeDisplayName(SeasonalTheme theme, BuildContext context) {
+    final l10n = AppLocalizations.of(context)!;
     switch (theme) {
       case SeasonalTheme.automatic:
-        return 'Automatic';
+        return l10n.automaticTheme;
       case SeasonalTheme.default_:
-        return 'Default (fSociety)';
+        return l10n.defaultTheme;
       case SeasonalTheme.spring:
-        return 'Spring Bloom';
+        return l10n.springTheme;
       case SeasonalTheme.summer:
-        return 'Summer Bright';
+        return l10n.summerTheme;
       case SeasonalTheme.autumn:
-        return 'Autumn Leaves';
+        return l10n.autumnTheme;
       case SeasonalTheme.winter:
-        return 'Winter Frost';
+        return l10n.winterTheme;
     }
   }