add language section for onboarding

lib/screens/auth/onboarding_page.dart

@@ -1,8 +1,10 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_svg/flutter_svg.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 import '../../extension/screenSize.dart';
 import '../../gen/assets.gen.dart';
 import '../../res/colors.dart';
+import '../../widgets/language_selection_dialog.dart';
 import 'login_page.dart';
 
 class OnboardingPage extends StatefulWidget {
@@ -16,6 +18,10 @@ class _OnboardingPageState extends State<OnboardingPage> {
   int currentIndex = 0;
   final PageController _pageController = PageController();
 
+  String _currentLanguage = '🇺🇲  English';
+  String _currentFlag = 'assets/icons/usa circle.svg';
+  final GlobalKey _languageKey = GlobalKey();
+
   final List<String> imageAssets = [
     Assets.images.ounboarding1.path,
     Assets.images.frame.path,
@@ -35,6 +41,7 @@ class _OnboardingPageState extends State<OnboardingPage> {
         curve: Curves.easeInOut,
       );
     } else {
+      _markOnboardingComplete();
       Navigator.push(
         context,
         MaterialPageRoute(builder: (context) => LoginPage()),
@@ -42,6 +49,16 @@ class _OnboardingPageState extends State<OnboardingPage> {
     }
   }
 
+  Future<void> _markOnboardingComplete() async {
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.setBool('hasSeenOnboarding', true);
+  }
+
+  Future<void> _resetOnboarding() async {
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.remove('hasSeenOnboarding');
+  }
+
   void _back() {
     if (currentIndex > 0) {
       _pageController.previousPage(
@@ -59,6 +76,109 @@ class _OnboardingPageState extends State<OnboardingPage> {
     return Scaffold(
       body: Column(
         children: [
+          Container(
+            padding: EdgeInsets.fromLTRB(
+              width / 15,
+              height / 20,
+              width / 15,
+              0,
+            ),
+            child: Row(
+              mainAxisAlignment: MainAxisAlignment.spaceBetween,
+              children: [
+                SizedBox(width: 50),
+                GestureDetector(
+                  key: _languageKey,
+                  onTap: () {
+                    showLanguageSelectionOverlay(context, _currentLanguage, (
+                      language,
+                      flag,
+                    ) {
+                      setState(() {
+                        _currentLanguage = language;
+                        _currentFlag = flag;
+                      });
+                    }, _languageKey);
+                  },
+                  child: Row(
+                    mainAxisSize: MainAxisSize.min,
+                    children: [
+                      AnimatedSwitcher(
+                        duration: const Duration(milliseconds: 300),
+                        child: ClipRRect(
+                          key: ValueKey(_currentFlag),
+                          borderRadius: BorderRadius.circular(4),
+                          child:
+                              _currentFlag == 'placeholder'
+                                  ? Container(
+                                    width: 24,
+                                    height: 18,
+                                    decoration: BoxDecoration(
+                                      color: AppColors.primary.withOpacity(0.1),
+                                      borderRadius: BorderRadius.circular(4),
+                                    ),
+                                    child: Icon(
+                                      Icons.flag,
+                                      color: AppColors.primary,
+                                      size: 12,
+                                    ),
+                                  )
+                                  : _currentFlag.endsWith('.svg')
+                                  ? SvgPicture.asset(
+                                    _currentFlag,
+                                    width: 24,
+                                    height: 18,
+                                  )
+                                  : Image.asset(
+                                    _currentFlag,
+                                    width: 24,
+                                    height: 18,
+                                    fit: BoxFit.cover,
+                                    errorBuilder: (context, error, stackTrace) {
+                                      return Container(
+                                        width: 24,
+                                        height: 18,
+                                        decoration: BoxDecoration(
+                                          color: AppColors.greyBorder
+                                              .withOpacity(0.2),
+                                          borderRadius: BorderRadius.circular(
+                                            4,
+                                          ),
+                                        ),
+                                        child: Icon(
+                                          Icons.flag,
+                                          color: AppColors.textSecondary,
+                                          size: 12,
+                                        ),
+                                      );
+                                    },
+                                  ),
+                        ),
+                      ),
+                      const SizedBox(width: 8),
+                      AnimatedSwitcher(
+                        duration: const Duration(milliseconds: 300),
+                        child: Text(
+                          _currentLanguage,
+                          key: ValueKey(_currentLanguage),
+                          style: TextStyle(
+                            fontSize: 15,
+                            fontWeight: FontWeight.w500,
+                            color: AppColors.textPrimary,
+                          ),
+                        ),
+                      ),
+                      const SizedBox(width: 8),
+                      SvgPicture.asset(
+                        Assets.icons.arrowRight.path,
+                        color: AppColors.textPrimary,
+                      ),
+                    ],
+                  ),
+                ),
+              ],
+            ),
+          ),
           Expanded(
             child: PageView.builder(
               controller: _pageController,
@@ -72,7 +192,8 @@ class _OnboardingPageState extends State<OnboardingPage> {
                 return Padding(
                   padding: EdgeInsets.fromLTRB(
                     width / 15,
-                    height / 40,
+                    height /
+                        60,
                     width / 15,
                     height / 30,
                   ),

lib/screens/mains/hunt/hunt.dart

@@ -115,6 +115,19 @@ class _HuntContentState extends State<_HuntContent> with TickerProviderStateMixi
   void _onCardSelected(HuntCard card) async {
     final huntProvider = Provider.of<HuntState>(context, listen: false);
 
+    // If the same card is selected, deselect it
+    if (huntProvider.selectedCard?.id == card.id) {
+      // Play sound for deselection too
+      await GameSoundService.playCardFlipSound();
+      Vibration.hasVibrator().then((hasVibrator) {
+        if (hasVibrator == true) {
+          Vibration.vibrate(duration: 50); // Lighter vibration for deselect
+        }
+      });
+      huntProvider.deselectCard();
+      return;
+    }
+
     await GameSoundService.playCardFlipSound();
     Vibration.hasVibrator().then((hasVibrator) {
       if (hasVibrator == true) {
@@ -243,6 +256,7 @@ class _HuntContentState extends State<_HuntContent> with TickerProviderStateMixi
                         return Padding(
                           padding: const EdgeInsets.only(bottom: 12),
                           child: HuntCardWidget(
+                            key: ValueKey(card.id),
                             card: card,
                             onTap: () => _onCardSelected(card),
                             isSelected: huntProvider.selectedCard?.id == card.id,

lib/screens/mains/hunt/providers/hunt_provider.dart

@@ -62,6 +62,11 @@ class HuntState extends ChangeNotifier {
     notifyListeners();
   }
 
+  void deselectCard() {
+    _selectedCard = null;
+    notifyListeners();
+  }
+
   void startHunt() {
     if (_selectedCard != null) {
       _huntStartTime = DateTime.now();

lib/screens/mains/hunt/widgets/hunt_card_widget.dart

@@ -84,7 +84,21 @@ class _HuntCardWidgetState extends State<HuntCardWidget>
   @override
   void didUpdateWidget(HuntCardWidget oldWidget) {
     super.didUpdateWidget(oldWidget);
-    if (widget.isFlipped != oldWidget.isFlipped) {
+    
+    // Handle selection state changes first
+    if (widget.isSelected != oldWidget.isSelected) {
+      if (widget.isSelected) {
+        // Card is being selected
+        _flipController.forward();
+      } else {
+        // Card is being deselected - animate back to front
+        _flipController.reverse();
+        _scaleController.reverse();
+      }
+    }
+    
+    // Handle flip animation based on isFlipped property if not already handled by selection
+    if (widget.isFlipped != oldWidget.isFlipped && widget.isSelected == oldWidget.isSelected) {
       if (widget.isFlipped) {
         _flipController.forward();
       } else {

lib/simple_auth_gate.dart

@@ -3,12 +3,42 @@ import 'package:flutter/material.dart';
 import 'package:lba/screens/auth/login_page.dart';
 import 'package:lba/screens/auth/onboarding_page.dart';
 import 'package:lba/screens/mains/navigation/navigation.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 
-class SimpleAuthGate extends StatelessWidget {
+class SimpleAuthGate extends StatefulWidget {
   const SimpleAuthGate({super.key});
 
+  @override
+  State<SimpleAuthGate> createState() => _SimpleAuthGateState();
+}
+
+class _SimpleAuthGateState extends State<SimpleAuthGate> {
+  bool? _isFirstTime;
+
+  @override
+  void initState() {
+    super.initState();
+    _checkFirstTime();
+  }
+
+  Future<void> _checkFirstTime() async {
+    final prefs = await SharedPreferences.getInstance();
+    final hasSeenOnboarding = prefs.getBool('hasSeenOnboarding') ?? false;
+    setState(() {
+      _isFirstTime = !hasSeenOnboarding;
+    });
+  }
+
   @override
   Widget build(BuildContext context) {
+    if (_isFirstTime == null) {
+      return const Scaffold(
+        body: Center(
+          child: CircularProgressIndicator(),
+        ),
+      );
+    }
+
     return StreamBuilder<User?>(
       stream: FirebaseAuth.instance.authStateChanges(),
       builder: (context, snapshot) {
@@ -42,12 +72,8 @@ class SimpleAuthGate extends StatelessWidget {
           return const MainScreen();
         }
 
-        return _shouldShowOnboarding() ? const OnboardingPage() : const LoginPage();
+        return _isFirstTime! ? const OnboardingPage() : const LoginPage();
       },
     );
   }
-
-  bool _shouldShowOnboarding() {
-    return false;
-  }
 }

lib/widgets/language_selection_dialog.dart

@@ -105,6 +105,17 @@ class _LanguageSelectionOverlayState extends State<LanguageSelectionOverlay>
     final targetPosition = _getTargetPosition();
     final screenWidth = MediaQuery.of(context).size.width;
     
+    final overlayWidth = screenWidth * 0.45;
+    
+    double? leftPosition;
+    double? rightPosition;
+    
+    if (targetPosition.dx > screenWidth * 0.7) {
+      rightPosition = 16;
+    } else {
+      rightPosition = 24;
+    }
+
     return AnimatedBuilder(
       animation: _animationController,
       builder: (context, child) {
@@ -113,21 +124,23 @@ class _LanguageSelectionOverlayState extends State<LanguageSelectionOverlay>
           child: GestureDetector(
             onTap: _closeOverlay,
             behavior: HitTestBehavior.translucent,
-            child: Container(
+            child: Padding(
+              padding: const EdgeInsets.all(8.0),
+              child: SizedBox(
                 width: double.infinity,
                 height: double.infinity,
                 child: Stack(
                   children: [
                     Positioned(
-                    right: targetPosition.dx + 10,
+                      left: leftPosition,
+                      right: rightPosition,
                       top: targetPosition.dy + 40,
                       child: Transform.scale(
                         scale: _scaleAnimation.value,
                         child: Opacity(
                           opacity: _opacityAnimation.value,
                           child: Container(
-                          width:
+                            width: overlayWidth,
-                              screenWidth * 0.45, // Less than half screen width
                             decoration: BoxDecoration(
                               color: AppColors.surface,
                               borderRadius: BorderRadius.only(
@@ -166,6 +179,7 @@ class _LanguageSelectionOverlayState extends State<LanguageSelectionOverlay>
                 ),
               ),
             ),
+          ),
         );
       },
     );
@@ -177,7 +191,7 @@ class _LanguageSelectionOverlayState extends State<LanguageSelectionOverlay>
     String flag,
     bool isSelected,
   ) {
-    print('Building language option: $name with flag: $flag'); // Debug log
+    print('Building language option: $name with flag: $flag');
     return Material(
       color: Colors.transparent,
       child: InkWell(