// ===========================================================================
// FILE: lib/ui/home/home_screen.dart
// ===========================================================================

import 'dart:ui';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:flutter/services.dart';
import 'package:font_awesome_flutter/font_awesome_flutter.dart';
import 'package:cloud_firestore/cloud_firestore.dart';
import 'dart:async';
import 'package:app_links/app_links.dart';

import 'package:firebase_auth/firebase_auth.dart';
import 'package:shared_preferences/shared_preferences.dart';

import '../../logic/game_controller.dart';
import '../../core/theme_manager.dart';
import '../../core/app_colors.dart';
import '../game/game_screen.dart';
import '../settings/settings_screen.dart';
import '../../services/storage_service.dart';
import '../../services/audio_service.dart';
import '../../services/multiplayer_service.dart';
import '../multiplayer/lobby_screen.dart';
import 'history_screen.dart';
import '../admin/admin_screen.dart';
import 'package:tetraq/l10n/app_localizations.dart';

import '../../widgets/painters.dart';
import '../../widgets/cyber_border.dart';
import '../../widgets/music_theme_widgets.dart';
import '../../widgets/home_buttons.dart';
import '../../widgets/custom_settings_button.dart';
import 'dialog.dart';

// ===========================================================================
// CLASSE PRINCIPALE HOME
// ===========================================================================
class HomeScreen extends StatefulWidget {
  const HomeScreen({super.key});

  @override
  State<HomeScreen> createState() => _HomeScreenState();
}

class _HomeScreenState extends State<HomeScreen> with WidgetsBindingObserver {

  int _debugTapCount = 0;
  late AppLinks _appLinks;
  StreamSubscription<Uri>? _linkSubscription;
  bool _isCreatingRoom = false;

  int _selectedRadius = 4;
  ArenaShape _selectedShape = ArenaShape.classic;
  bool _isTimeMode = true;
  bool _isPublicRoom = true;
  bool _isLoading = false;
  String? _myRoomCode;
  bool _roomStarted = false;

  final MultiplayerService _multiplayerService = MultiplayerService();
  final TextEditingController _codeController = TextEditingController();

  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addObserver(this);
    WidgetsBinding.instance.addPostFrameCallback((_) {
      _checkPlayerName();
      StorageService.instance.syncLeaderboard();
    });
    _checkClipboardForInvite();
    _initDeepLinks();
  }

  @override
  void dispose() {
    WidgetsBinding.instance.removeObserver(this);
    _cleanupGhostRoom();
    _linkSubscription?.cancel();
    _codeController.dispose();
    super.dispose();
  }

  @override
  void didChangeAppLifecycleState(AppLifecycleState state) {
    if (state == AppLifecycleState.resumed) {
      _checkClipboardForInvite();
    } else if (state == AppLifecycleState.paused || state == AppLifecycleState.detached) {
      _cleanupGhostRoom();
    }
  }

  void _cleanupGhostRoom() {
    if (_myRoomCode != null && !_roomStarted) {
      FirebaseFirestore.instance.collection('games').doc(_myRoomCode).delete();
      _myRoomCode = null;
    }
  }

  void _checkPlayerName() {
    if (StorageService.instance.playerName.isEmpty) { _showNameDialog(); }
  }

  Future<void> _initDeepLinks() async {
    _appLinks = AppLinks();
    try {
      final initialUri = await _appLinks.getInitialLink();
      if (initialUri != null) _handleDeepLink(initialUri);
    } catch (e) { debugPrint("Errore lettura link iniziale: $e"); }
    _linkSubscription = _appLinks.uriLinkStream.listen((uri) { _handleDeepLink(uri); }, onError: (err) { debugPrint("Errore stream link: $err"); });
  }

  void _handleDeepLink(Uri uri) {
    if (uri.scheme == 'tetraq' && uri.host == 'join') {
      String? code = uri.queryParameters['code'];
      if (code != null && code.length == 5) {
        Future.delayed(const Duration(milliseconds: 500), () {
          if (mounted) _promptJoinRoom(code.toUpperCase());
        });
      }
    }
  }

  Future<void> _checkClipboardForInvite() async {
    try {
      ClipboardData? data = await Clipboard.getData(Clipboard.kTextPlain);
      String? text = data?.text;
      if (text != null && text.contains("TetraQ") && text.contains("codice:")) {
        RegExp regExp = RegExp(r'codice:\s*([A-Z0-9]{5})', caseSensitive: false);
        Match? match = regExp.firstMatch(text);
        if (match != null) {
          String roomCode = match.group(1)!.toUpperCase();
          await Clipboard.setData(const ClipboardData(text: ''));
          if (mounted && ModalRoute.of(context)?.isCurrent == true) { _promptJoinRoom(roomCode); }
        }
      }
    } catch (e) { debugPrint("Errore lettura appunti: $e"); }
  }

  Future<void> _createRoom() async {
    if (_isLoading) return;
    setState(() => _isLoading = true);

    try {
      String playerName = StorageService.instance.playerName;
      if (playerName.isEmpty) playerName = "HOST";

      String code = await _multiplayerService.createGameRoom(
          _selectedRadius, playerName, _selectedShape.name, _isTimeMode, isPublic: _isPublicRoom
      );

      if (!mounted) return;
      setState(() { _myRoomCode = code; _isLoading = false; _roomStarted = false; });

      if (!_isPublicRoom) {
        _multiplayerService.shareInviteLink(code);
      }
      _showWaitingDialog(code);
    } catch (e) {
      if (mounted) { setState(() => _isLoading = false); _showError("Errore durante la creazione della partita."); }
    }
  }

  Future<void> _joinRoomByCode(String code) async {
    if (_isLoading) return;
    FocusScope.of(context).unfocus();

    code = code.trim().toUpperCase();
    if (code.isEmpty || code.length != 5) { _showError("Inserisci un codice valido di 5 caratteri."); return; }

    setState(() => _isLoading = true);

    try {
      String playerName = StorageService.instance.playerName;
      if (playerName.isEmpty) playerName = "GUEST";

      Map<String, dynamic>? roomData = await _multiplayerService.joinGameRoom(code, playerName);

      if (!mounted) return;
      setState(() => _isLoading = false);

      if (roomData != null) {
        ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text("Stanza trovata! Partita in avvio..."), backgroundColor: Colors.green));

        int hostRadius = roomData['radius'] ?? 4;
        String shapeStr = roomData['shape'] ?? 'classic';
        ArenaShape hostShape = ArenaShape.values.firstWhere((e) => e.name == shapeStr, orElse: () => ArenaShape.classic);
        bool hostTimeMode = roomData['timeMode'] ?? true;

        context.read<GameController>().startNewGame(hostRadius, isOnline: true, roomCode: code, isHost: false, shape: hostShape, timeMode: hostTimeMode);
        Navigator.pushReplacement(context, MaterialPageRoute(builder: (_) => const GameScreen()));
      } else {
        _showError("Stanza non trovata, piena o partita già iniziata.");
      }
    } catch (e) {
      if (mounted) { setState(() => _isLoading = false); _showError("Errore di connessione: $e"); }
    }
  }

  void _showError(String message) { ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(message, style: const TextStyle(color: Colors.white)), backgroundColor: Colors.red)); }

  void _showWaitingDialog(String code) {
    showDialog(
        context: context,
        barrierDismissible: false,
        builder: (context) {
          final theme = context.watch<ThemeManager>().currentColors;
          final themeType = context.read<ThemeManager>().currentThemeType;

          Widget dialogContent = Column(
            mainAxisSize: MainAxisSize.min,
            children: [
              CircularProgressIndicator(color: theme.playerRed), const SizedBox(height: 25),
              Text("CODICE STANZA", style: getSharedTextStyle(themeType, TextStyle(fontSize: 16, fontWeight: FontWeight.bold, color: theme.text.withOpacity(0.6), letterSpacing: 2))),
              Text(code, style: getSharedTextStyle(themeType, TextStyle(fontSize: 40, fontWeight: FontWeight.w900, color: theme.playerRed, letterSpacing: 8, shadows: themeType == AppThemeType.doodle ? [] : [Shadow(color: theme.playerRed.withOpacity(0.5), blurRadius: 10)]))),
              const SizedBox(height: 25),
              Transform.rotate(
                angle: themeType == AppThemeType.doodle ? 0.02 : 0,
                child: Container(
                  padding: const EdgeInsets.all(18),
                  decoration: BoxDecoration(
                      color: themeType == AppThemeType.doodle ? Colors.white : theme.text.withOpacity(0.05),
                      borderRadius: BorderRadius.circular(20),
                      border: Border.all(color: themeType == AppThemeType.doodle ? theme.text : theme.playerBlue.withOpacity(0.3), width: themeType == AppThemeType.doodle ? 2 : 1.5),
                      boxShadow: themeType == AppThemeType.doodle
                          ? [BoxShadow(color: theme.text.withOpacity(0.8), offset: const Offset(4, 4))]
                          : [BoxShadow(color: theme.playerBlue.withOpacity(0.1), blurRadius: 10)]
                  ),
                  child: Column(
                    children: [
                      Icon(_isPublicRoom ? Icons.podcasts : Icons.share, color: theme.playerBlue, size: 32), const SizedBox(height: 12),
                      Text(_isPublicRoom ? "Sei in Bacheca!" : "Invita un amico", textAlign: TextAlign.center, style: getSharedTextStyle(themeType, TextStyle(color: theme.text, fontWeight: FontWeight.w900, fontSize: 18))),
                      const SizedBox(height: 8),
                      Text(_isPublicRoom ? "Aspettiamo che uno sfidante si unisca dalla lobby pubblica." : "Condividi il codice. La partita inizierà appena si unirà.", textAlign: TextAlign.center, style: getSharedTextStyle(themeType, TextStyle(color: themeType == AppThemeType.doodle ? theme.text : theme.text.withOpacity(0.8), fontSize: 14, height: 1.5))),
                    ],
                  ),
                ),
              ),
            ],
          );

          if (themeType == AppThemeType.cyberpunk || themeType == AppThemeType.music) {
            dialogContent = AnimatedCyberBorder(child: dialogContent);
          } else {
            dialogContent = Container(
                padding: const EdgeInsets.all(20),
                decoration: BoxDecoration(
                    color: themeType == AppThemeType.doodle ? Colors.white.withOpacity(0.95) : theme.background,
                    borderRadius: BorderRadius.circular(25),
                    border: Border.all(color: themeType == AppThemeType.doodle ? theme.text : theme.gridLine.withOpacity(0.5), width: 2),
                    boxShadow: themeType == AppThemeType.doodle ? [BoxShadow(color: theme.text.withOpacity(0.6), offset: const Offset(8, 8))] : []
                ),
                child: dialogContent
            );
          }

          return StreamBuilder<DocumentSnapshot>(
            stream: _multiplayerService.listenToRoom(code),
            builder: (context, snapshot) {
              if (snapshot.hasData && snapshot.data!.exists) {
                var data = snapshot.data!.data() as Map<String, dynamic>;
                if (data['status'] == 'playing') {
                  _roomStarted = true;
                  WidgetsBinding.instance.addPostFrameCallback((_) {
                    Navigator.pop(context);
                    context.read<GameController>().startNewGame(_selectedRadius, isOnline: true, roomCode: code, isHost: true, shape: _selectedShape, timeMode: _isTimeMode);
                    Navigator.pushReplacement(context, MaterialPageRoute(builder: (_) => const GameScreen()));
                  });
                }
              }

              return PopScope(
                canPop: false,
                onPopInvoked: (didPop) {
                  if (didPop) return;
                  _cleanupGhostRoom();
                  Navigator.pop(context);
                },
                child: Dialog(
                  backgroundColor: Colors.transparent,
                  insetPadding: const EdgeInsets.all(20),
                  child: Column(
                    mainAxisSize: MainAxisSize.min,
                    children: [
                      dialogContent,
                      const SizedBox(height: 20),
                      TextButton(
                        onPressed: () {
                          _cleanupGhostRoom();
                          Navigator.pop(context);
                        },
                        child: Text("ANNULLA", style: getSharedTextStyle(themeType, TextStyle(color: Colors.red, fontWeight: FontWeight.w900, fontSize: 20, letterSpacing: 2.0, shadows: themeType == AppThemeType.doodle ? [] : [const Shadow(color: Colors.black, blurRadius: 2)]))),
                      ),
                    ],
                  ),
                ),
              );
            },
          );
        }
    );
  }

  void _promptJoinRoom(String roomCode) {
    showDialog(
        context: context,
        builder: (context) {
          final theme = context.watch<ThemeManager>().currentColors;
          final themeType = context.read<ThemeManager>().currentThemeType;
          return AlertDialog(
            backgroundColor: themeType == AppThemeType.doodle ? Colors.white : theme.background,
            shape: themeType == AppThemeType.doodle ? RoundedRectangleBorder(borderRadius: BorderRadius.circular(15), side: BorderSide(color: theme.text, width: 2)) : null,
            title: Text("Invito Trovato!", style: getSharedTextStyle(themeType, TextStyle(color: theme.text, fontWeight: FontWeight.bold))),
            content: Text("Vuoi unirti alla stanza $roomCode?", style: getSharedTextStyle(themeType, TextStyle(color: theme.text))),
            actions: [
              TextButton(onPressed: () => Navigator.pop(context), child: Text("No", style: getSharedTextStyle(themeType, const TextStyle(color: Colors.red)))),
              ElevatedButton(
                style: ElevatedButton.styleFrom(backgroundColor: themeType == AppThemeType.doodle ? Colors.transparent : theme.playerBlue, elevation: 0, side: themeType == AppThemeType.doodle ? BorderSide(color: theme.text, width: 1.5) : BorderSide.none),
                onPressed: () {
                  Navigator.of(context).pop();
                  _joinRoomByCode(roomCode);
                },
                child: Text(AppLocalizations.of(context)!.joinMatch, style: getSharedTextStyle(themeType, TextStyle(color: themeType == AppThemeType.doodle ? theme.text : Colors.white, fontWeight: FontWeight.bold))),
              ),
            ],
          );
        }
    );
  }

  // --- FINESTRA DI REGISTRAZIONE/LOGIN ---
  void _showNameDialog() {
    final TextEditingController nameController = TextEditingController(text: StorageService.instance.playerName);
    final TextEditingController passController = TextEditingController();
    bool isLoadingAuth = false;
    bool _obscurePassword = true;
    String _errorMessage = "";

    showDialog(
      context: context, barrierDismissible: false, barrierColor: Colors.black.withOpacity(0.8),
      builder: (context) {
        final themeManager = context.watch<ThemeManager>();
        final theme = themeManager.currentColors; final themeType = themeManager.currentThemeType;
        Color inkColor = const Color(0xFF111122); final loc = AppLocalizations.of(context)!;

        return StatefulBuilder(
          builder: (context, setStateDialog) {

            Future<void> handleAuth(bool isLogin) async {
              final name = nameController.text.trim();
              final password = passController.text.trim();

              setStateDialog(() {
                _errorMessage = "";
                isLoadingAuth = true;
              });

              if (name.isEmpty || password.isEmpty) {
                setStateDialog(() {
                  _errorMessage = "Inserisci Nome e Password!";
                  isLoadingAuth = false;
                });
                return;
              }
              if (password.length < 6) {
                setStateDialog(() {
                  _errorMessage = "La password deve avere almeno 6 caratteri!";
                  isLoadingAuth = false;
                });
                return;
              }

              final fakeEmail = "${name.toLowerCase().replaceAll(' ', '')}@tetraq.game";

              try {
                if (isLogin) {
                  await FirebaseAuth.instance.signInWithEmailAndPassword(email: fakeEmail, password: password);
                  final doc = await FirebaseFirestore.instance.collection('leaderboard').doc(FirebaseAuth.instance.currentUser!.uid).get();
                  if (doc.exists) {
                    final data = doc.data() as Map<String, dynamic>;
                    final prefs = await SharedPreferences.getInstance();
                    await prefs.setInt('totalXP', data['xp'] ?? 0);
                    await prefs.setInt('wins', data['wins'] ?? 0);
                    await prefs.setInt('losses', data['losses'] ?? 0);
                  }
                  if (mounted) ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text("Bentornato $name! Dati sincronizzati."), backgroundColor: Colors.green));
                } else {
                  await FirebaseAuth.instance.createUserWithEmailAndPassword(email: fakeEmail, password: password);
                  if (mounted) ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text("Account creato con successo!"), backgroundColor: Colors.green));
                }

                await StorageService.instance.savePlayerName(name);
                if (mounted) Navigator.of(context).pop();
                setState(() {});

              } on FirebaseAuthException catch (e) {
                String msg = "Errore di autenticazione.";
                if (e.code == 'email-already-in-use') {
                  msg = "Nome occupato!\nSe è il tuo account, clicca su ACCEDI.";
                } else if (e.code == 'user-not-found' || e.code == 'wrong-password' || e.code == 'invalid-credential') {
                  msg = "Nome o Password errati!";
                }
                setStateDialog(() {
                  _errorMessage = msg;
                  isLoadingAuth = false;
                });
              } catch (e) {
                setStateDialog(() {
                  _errorMessage = "Errore imprevisto: $e";
                  isLoadingAuth = false;
                });
              }
            }

            Widget dialogContent = themeType == AppThemeType.doodle
                ? CustomPaint(
              painter: DoodleBackgroundPainter(fillColor: Colors.yellow.shade100, strokeColor: inkColor, seed: 100),
              child: SingleChildScrollView(
                physics: const BouncingScrollPhysics(),
                child: Padding(
                  padding: const EdgeInsets.symmetric(vertical: 20.0, horizontal: 20.0),
                  child: Column(
                    mainAxisSize: MainAxisSize.min,
                    children: [
                      Text(loc.welcomeTitle, style: getSharedTextStyle(themeType, TextStyle(color: inkColor, fontWeight: FontWeight.w900, fontSize: 24, letterSpacing: 2.0)), textAlign: TextAlign.center),
                      const SizedBox(height: 10),
                      Text('Scegli Nome e Password.\nTi serviranno per recuperare gli XP!', style: getSharedTextStyle(themeType, TextStyle(color: inkColor.withOpacity(0.8), fontSize: 13)), textAlign: TextAlign.center),
                      const SizedBox(height: 15),
                      TextField(
                        controller: nameController, textCapitalization: TextCapitalization.characters, textAlign: TextAlign.center, maxLength: 8,
                        style: getSharedTextStyle(themeType, TextStyle(color: inkColor, fontSize: 24, fontWeight: FontWeight.bold, letterSpacing: 4)),
                        decoration: InputDecoration(
                            hintText: loc.nameHint,
                            hintStyle: getSharedTextStyle(themeType, TextStyle(color: inkColor.withOpacity(0.3), letterSpacing: 4)),
                            filled: false, counterText: "",
                            enabledBorder: UnderlineInputBorder(borderSide: BorderSide(color: inkColor, width: 3)),
                            focusedBorder: UnderlineInputBorder(borderSide: BorderSide(color: Colors.red.shade200, width: 5))
                        ),
                      ),
                      const SizedBox(height: 8),
                      TextField(
                        controller: passController, obscureText: _obscurePassword, textAlign: TextAlign.center, maxLength: 20,
                        style: getSharedTextStyle(themeType, TextStyle(color: inkColor, fontSize: 20, fontWeight: FontWeight.bold, letterSpacing: 8)),
                        decoration: InputDecoration(
                          hintText: "PASSWORD",
                          hintStyle: getSharedTextStyle(themeType, TextStyle(color: inkColor.withOpacity(0.3), letterSpacing: 4)),
                          filled: false, counterText: "",
                          enabledBorder: UnderlineInputBorder(borderSide: BorderSide(color: inkColor, width: 3)),
                          focusedBorder: UnderlineInputBorder(borderSide: BorderSide(color: Colors.red.shade200, width: 5)),
                          suffixIcon: IconButton(
                            icon: Icon(_obscurePassword ? Icons.visibility : Icons.visibility_off, color: inkColor.withOpacity(0.6)),
                            onPressed: () { setStateDialog(() { _obscurePassword = !_obscurePassword; }); },
                          ),
                        ),
                      ),
                      const SizedBox(height: 15),

                      // MESSAGGIO DI ERRORE
                      if (_errorMessage.isNotEmpty)
                        Padding(
                          padding: const EdgeInsets.only(bottom: 10),
                          child: Text(_errorMessage, style: getSharedTextStyle(themeType, const TextStyle(color: Colors.red, fontSize: 14, fontWeight: FontWeight.bold)), textAlign: TextAlign.center),
                        ),

                      Text("💡 Nota: Non serve una vera email. Usa una password facile da ricordare!", style: getSharedTextStyle(themeType, TextStyle(color: inkColor.withOpacity(0.6), fontSize: 11, height: 1.3)), textAlign: TextAlign.center),
                      const SizedBox(height: 15),
                      isLoadingAuth
                          ? CircularProgressIndicator(color: inkColor)
                          : Row(
                        children: [
                          Expanded(
                            child: GestureDetector(
                              onTap: () => handleAuth(true),
                              child: CustomPaint(
                                painter: DoodleBackgroundPainter(fillColor: Colors.blue.shade200, strokeColor: inkColor, seed: 101),
                                child: Container(height: 45, alignment: Alignment.center, child: Text("ACCEDI", style: getSharedTextStyle(themeType, TextStyle(color: inkColor, fontSize: 14, fontWeight: FontWeight.bold, letterSpacing: 1.5)))),
                              ),
                            ),
                          ),
                          const SizedBox(width: 10),
                          Expanded(
                            child: GestureDetector(
                              onTap: () => handleAuth(false),
                              child: CustomPaint(
                                painter: DoodleBackgroundPainter(fillColor: Colors.green.shade200, strokeColor: inkColor, seed: 102),
                                child: Container(height: 45, alignment: Alignment.center, child: Text("REGISTRATI", style: getSharedTextStyle(themeType, TextStyle(color: inkColor, fontSize: 14, fontWeight: FontWeight.bold, letterSpacing: 1.5)))),
                              ),
                            ),
                          ),
                        ],
                      ),
                    ],
                  ),
                ),
              ),
            )
                : Container(
              decoration: BoxDecoration(color: theme.background, borderRadius: BorderRadius.circular(25), border: Border.all(color: theme.playerBlue.withOpacity(0.5), width: 2), boxShadow: [BoxShadow(color: theme.playerBlue.withOpacity(0.3), blurRadius: 20, spreadRadius: 5)]),
              child: SingleChildScrollView(
                physics: const BouncingScrollPhysics(),
                child: Padding(
                  padding: const EdgeInsets.symmetric(vertical: 20.0, horizontal: 20.0),
                  child: Column(
                    mainAxisSize: MainAxisSize.min,
                    children: [
                      Text(loc.welcomeTitle, style: getSharedTextStyle(themeType, TextStyle(color: theme.text, fontWeight: FontWeight.w900, fontSize: 20, letterSpacing: 1.5)), textAlign: TextAlign.center),
                      const SizedBox(height: 10),
                      Text('Scegli Nome e Password.\nTi serviranno per recuperare gli XP!', style: getSharedTextStyle(themeType, TextStyle(color: theme.text.withOpacity(0.8), fontSize: 13)), textAlign: TextAlign.center),
                      const SizedBox(height: 15),
                      TextField(
                        controller: nameController, textCapitalization: TextCapitalization.characters, textAlign: TextAlign.center, maxLength: 8,
                        style: getSharedTextStyle(themeType, TextStyle(color: theme.text, fontSize: 24, fontWeight: FontWeight.bold, letterSpacing: 4)),
                        decoration: InputDecoration(
                            hintText: loc.nameHint,
                            hintStyle: getSharedTextStyle(themeType, TextStyle(color: theme.text.withOpacity(0.3), letterSpacing: 4)),
                            filled: true, fillColor: theme.text.withOpacity(0.05), counterText: "",
                            enabledBorder: OutlineInputBorder(borderSide: BorderSide(color: theme.gridLine.withOpacity(0.5), width: 2), borderRadius: BorderRadius.circular(15)),
                            focusedBorder: OutlineInputBorder(borderSide: BorderSide(color: theme.playerBlue, width: 3), borderRadius: BorderRadius.circular(15))
                        ),
                      ),
                      const SizedBox(height: 10),
                      TextField(
                        controller: passController, obscureText: _obscurePassword, textAlign: TextAlign.center, maxLength: 20,
                        style: getSharedTextStyle(themeType, TextStyle(color: theme.text, fontSize: 20, fontWeight: FontWeight.bold, letterSpacing: 8)),
                        decoration: InputDecoration(
                          hintText: "PASSWORD",
                          hintStyle: getSharedTextStyle(themeType, TextStyle(color: theme.text.withOpacity(0.3), letterSpacing: 4)),
                          filled: true, fillColor: theme.text.withOpacity(0.05), counterText: "",
                          enabledBorder: OutlineInputBorder(borderSide: BorderSide(color: theme.gridLine.withOpacity(0.5), width: 2), borderRadius: BorderRadius.circular(15)),
                          focusedBorder: OutlineInputBorder(borderSide: BorderSide(color: theme.playerBlue, width: 3), borderRadius: BorderRadius.circular(15)),
                          suffixIcon: IconButton(
                            icon: Icon(_obscurePassword ? Icons.visibility : Icons.visibility_off, color: theme.text.withOpacity(0.6)),
                            onPressed: () { setStateDialog(() { _obscurePassword = !_obscurePassword; }); },
                          ),
                        ),
                      ),
                      const SizedBox(height: 15),

                      // MESSAGGIO DI ERRORE
                      if (_errorMessage.isNotEmpty)
                        Padding(
                          padding: const EdgeInsets.only(bottom: 10),
                          child: Text(_errorMessage, style: getSharedTextStyle(themeType, const TextStyle(color: Colors.redAccent, fontSize: 14, fontWeight: FontWeight.bold)), textAlign: TextAlign.center),
                        ),

                      Text("💡 Nota: Non serve una vera email. Usa una password facile da ricordare!", style: getSharedTextStyle(themeType, TextStyle(color: theme.text.withOpacity(0.6), fontSize: 11, height: 1.3)), textAlign: TextAlign.center),
                      const SizedBox(height: 20),
                      isLoadingAuth
                          ? CircularProgressIndicator(color: theme.playerBlue)
                          : Row(
                        children: [
                          Expanded(
                            child: SizedBox(
                              height: 45,
                              child: ElevatedButton(
                                style: ElevatedButton.styleFrom(backgroundColor: theme.text.withOpacity(0.1), foregroundColor: theme.text, shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(15)), side: BorderSide(color: theme.playerBlue, width: 1.5)),
                                onPressed: () => handleAuth(true),
                                child: Text("ACCEDI", style: getSharedTextStyle(themeType, const TextStyle(fontSize: 13, fontWeight: FontWeight.bold, letterSpacing: 1.0))),
                              ),
                            ),
                          ),
                          const SizedBox(width: 10),
                          Expanded(
                            child: SizedBox(
                              height: 45,
                              child: ElevatedButton(
                                style: ElevatedButton.styleFrom(backgroundColor: theme.playerBlue, foregroundColor: Colors.white, shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(15))),
                                onPressed: () => handleAuth(false),
                                child: Text("REGISTRATI", style: getSharedTextStyle(themeType, const TextStyle(fontSize: 13, fontWeight: FontWeight.bold, letterSpacing: 1.0))),
                              ),
                            ),
                          ),
                        ],
                      ),
                    ],
                  ),
                ),
              ),
            );

            if (themeType == AppThemeType.cyberpunk || themeType == AppThemeType.music) dialogContent = AnimatedCyberBorder(child: dialogContent);
            return Dialog(backgroundColor: Colors.transparent, insetPadding: const EdgeInsets.all(20), child: dialogContent);
          },
        );
      },
    );
  }

  void _showMatchSetupDialog(bool isVsCPU) {
    int localRadius = 4; ArenaShape localShape = ArenaShape.classic; bool localTimeMode = true;
    bool isChaosUnlocked = StorageService.instance.playerLevel >= 10;
    final loc = AppLocalizations.of(context)!;

    showDialog(
        context: context, barrierColor: Colors.black.withOpacity(0.8),
        builder: (ctx) {
          final themeManager = ctx.watch<ThemeManager>();
          final theme = themeManager.currentColors; final themeType = themeManager.currentThemeType;
          Color inkColor = const Color(0xFF111122);

          return StatefulBuilder(
            builder: (context, setStateDialog) {
              Widget dialogContent = themeType == AppThemeType.doodle
                  ? Transform.rotate(
                angle: 0.015,
                child: CustomPaint(
                  painter: DoodleBackgroundPainter(fillColor: Colors.white.withOpacity(0.95), strokeColor: inkColor, seed: 200),
                  child: SingleChildScrollView(
                    physics: const BouncingScrollPhysics(),
                    child: Padding(
                      padding: const EdgeInsets.all(25.0),
                      child: Column(
                        mainAxisSize: MainAxisSize.min,
                        children: [
                          Row(children: [ SizedBox(width: 40, child: IconButton(padding: EdgeInsets.zero, alignment: Alignment.centerLeft, icon: Icon(Icons.arrow_back_ios_new, color: inkColor, size: 26), onPressed: () => Navigator.pop(ctx))), Expanded(child: Text(isVsCPU ? loc.cpuTitle : loc.localTitle, textAlign: TextAlign.center, style: getSharedTextStyle(themeType, TextStyle(fontSize: 26, fontWeight: FontWeight.w900, color: inkColor, letterSpacing: 2)))), const SizedBox(width: 40) ]),
                          const SizedBox(height: 25),

                          if (isVsCPU) ...[
                            Icon(Icons.smart_toy, size: 50, color: inkColor.withOpacity(0.6)), const SizedBox(height: 10),
                            Text("MODALITÀ CAMPAGNA", style: getSharedTextStyle(themeType, TextStyle(fontSize: 16, fontWeight: FontWeight.w900, color: inkColor))), const SizedBox(height: 10),
                            Text("Livello CPU: ${StorageService.instance.cpuLevel}\nForma e dimensioni si adatteranno alla tua bravura!", textAlign: TextAlign.center, style: getSharedTextStyle(themeType, TextStyle(fontSize: 13, color: inkColor.withOpacity(0.8), height: 1.4))), const SizedBox(height: 25),
                            Divider(color: inkColor.withOpacity(0.3), thickness: 2.5), const SizedBox(height: 20),
                          ] else ...[
                            Text("FORMA ARENA", style: getSharedTextStyle(themeType, TextStyle(fontSize: 14, fontWeight: FontWeight.w900, color: inkColor.withOpacity(0.6), letterSpacing: 1.5))), const SizedBox(height: 15),
                            Wrap(
                              spacing: 12, runSpacing: 12, alignment: WrapAlignment.center,
                              children: [
                                NeonShapeButton(icon: Icons.diamond_outlined, label: 'Rombo', isSelected: localShape == ArenaShape.classic, theme: theme, themeType: themeType, onTap: () => setStateDialog(() => localShape = ArenaShape.classic)),
                                NeonShapeButton(icon: Icons.add, label: 'Croce', isSelected: localShape == ArenaShape.cross, theme: theme, themeType: themeType, onTap: () => setStateDialog(() => localShape = ArenaShape.cross)),
                                NeonShapeButton(icon: Icons.donut_large, label: 'Buco', isSelected: localShape == ArenaShape.donut, theme: theme, themeType: themeType, onTap: () => setStateDialog(() => localShape = ArenaShape.donut)),
                                NeonShapeButton(icon: Icons.hourglass_bottom, label: 'Clessidra', isSelected: localShape == ArenaShape.hourglass, theme: theme, themeType: themeType, onTap: () => setStateDialog(() => localShape = ArenaShape.hourglass)),
                                NeonShapeButton(icon: Icons.all_inclusive, label: 'Caos', isSelected: localShape == ArenaShape.chaos, theme: theme, themeType: themeType, isSpecial: true, isLocked: !isChaosUnlocked, onTap: () => setStateDialog(() => localShape = ArenaShape.chaos)),
                              ],
                            ),
                            const SizedBox(height: 25), Divider(color: inkColor.withOpacity(0.3), thickness: 2.5), const SizedBox(height: 20),

                            Text("GRANDEZZA", style: getSharedTextStyle(themeType, TextStyle(fontSize: 14, fontWeight: FontWeight.w900, color: inkColor.withOpacity(0.6), letterSpacing: 1.5))), const SizedBox(height: 15),
                            Row(
                              mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                              children: [
                                NeonSizeButton(label: 'S', isSelected: localRadius == 3, theme: theme, themeType: themeType, onTap: () => setStateDialog(() => localRadius = 3)),
                                NeonSizeButton(label: 'M', isSelected: localRadius == 4, theme: theme, themeType: themeType, onTap: () => setStateDialog(() => localRadius = 4)),
                                NeonSizeButton(label: 'L', isSelected: localRadius == 5, theme: theme, themeType: themeType, onTap: () => setStateDialog(() => localRadius = 5)),
                                NeonSizeButton(label: 'MAX', isSelected: localRadius == 6, theme: theme, themeType: themeType, onTap: () => setStateDialog(() => localRadius = 6)),
                              ],
                            ),
                            const SizedBox(height: 25), Divider(color: inkColor.withOpacity(0.3), thickness: 2.5), const SizedBox(height: 20),
                          ],

                          Text("TEMPO", style: getSharedTextStyle(themeType, TextStyle(fontSize: 14, fontWeight: FontWeight.w900, color: inkColor.withOpacity(0.6), letterSpacing: 1.5))), const SizedBox(height: 10),
                          NeonTimeSwitch(isTimeMode: localTimeMode, theme: theme, themeType: themeType, onTap: () => setStateDialog(() => localTimeMode = !localTimeMode)), const SizedBox(height: 35),

                          Transform.rotate(
                            angle: -0.02,
                            child: GestureDetector(
                              onTap: () { Navigator.pop(ctx); context.read<GameController>().startNewGame(localRadius, vsCPU: isVsCPU, shape: localShape, timeMode: localTimeMode); Navigator.push(context, MaterialPageRoute(builder: (_) => const GameScreen())); },
                              child: CustomPaint(painter: DoodleBackgroundPainter(fillColor: Colors.green.shade200, strokeColor: inkColor, seed: 300), child: Container(height: 65, width: double.infinity, alignment: Alignment.center, child: Text(loc.startGame, style: getSharedTextStyle(themeType, TextStyle(fontSize: 22, fontWeight: FontWeight.w900, letterSpacing: 3.0, color: inkColor))))),
                            ),
                          )
                        ],
                      ),
                    ),
                  ),
                ),
              )
                  : Container(
                decoration: BoxDecoration(
                  gradient: LinearGradient(begin: Alignment.topLeft, end: Alignment.bottomRight, colors: [theme.background.withOpacity(0.95), theme.background.withOpacity(0.8)]),
                  borderRadius: BorderRadius.circular(25), border: themeType == AppThemeType.cyberpunk || themeType == AppThemeType.arcade || themeType == AppThemeType.music ? null : Border.all(color: Colors.white.withOpacity(0.15), width: 1.5),
                  boxShadow: themeType == AppThemeType.cyberpunk || themeType == AppThemeType.arcade || themeType == AppThemeType.music ? [] : [BoxShadow(color: Colors.black.withOpacity(0.5), blurRadius: 20, offset: const Offset(4, 10))],
                ),
                child: SingleChildScrollView(
                  physics: const BouncingScrollPhysics(),
                  child: Padding(
                    padding: const EdgeInsets.all(20.0),
                    child: Column(
                      mainAxisSize: MainAxisSize.min,
                      children: [
                        Row(children: [ SizedBox(width: 40, child: IconButton(padding: EdgeInsets.zero, alignment: Alignment.centerLeft, icon: Icon(Icons.arrow_back_ios_new, color: theme.text, size: 26), onPressed: () => Navigator.pop(ctx))), Expanded(child: Text(isVsCPU ? loc.cpuTitle : loc.localTitle, textAlign: TextAlign.center, style: getSharedTextStyle(themeType, TextStyle(fontSize: 24, fontWeight: FontWeight.w900, color: theme.text, letterSpacing: 2)))), const SizedBox(width: 40) ]),
                        const SizedBox(height: 20),

                        if (isVsCPU) ...[
                          Icon(Icons.smart_toy, size: 50, color: theme.playerBlue), const SizedBox(height: 10),
                          Text("MODALITÀ CAMPAGNA", style: getSharedTextStyle(themeType, TextStyle(fontSize: 16, fontWeight: FontWeight.w900, color: theme.text, letterSpacing: 1.5))), const SizedBox(height: 10),
                          Text("Livello CPU: ${StorageService.instance.cpuLevel}\nForma e dimensioni si adatteranno alla tua bravura!", textAlign: TextAlign.center, style: getSharedTextStyle(themeType, TextStyle(fontSize: 13, color: theme.text.withOpacity(0.7), height: 1.4))), const SizedBox(height: 20),
                          Divider(color: Colors.white.withOpacity(0.05), thickness: 2), const SizedBox(height: 20),
                        ] else ...[
                          Text("FORMA ARENA", style: getSharedTextStyle(themeType, TextStyle(fontSize: 12, fontWeight: FontWeight.w900, color: theme.text.withOpacity(0.5), letterSpacing: 1.5))), const SizedBox(height: 10),
                          Wrap(
                            spacing: 10, runSpacing: 10, alignment: WrapAlignment.center,
                            children: [
                              NeonShapeButton(icon: Icons.diamond_outlined, label: 'Rombo', isSelected: localShape == ArenaShape.classic, theme: theme, themeType: themeType, onTap: () => setStateDialog(() => localShape = ArenaShape.classic)),
                              NeonShapeButton(icon: Icons.add, label: 'Croce', isSelected: localShape == ArenaShape.cross, theme: theme, themeType: themeType, onTap: () => setStateDialog(() => localShape = ArenaShape.cross)),
                              NeonShapeButton(icon: Icons.donut_large, label: 'Buco', isSelected: localShape == ArenaShape.donut, theme: theme, themeType: themeType, onTap: () => setStateDialog(() => localShape = ArenaShape.donut)),
                              NeonShapeButton(icon: Icons.hourglass_bottom, label: 'Clessidra', isSelected: localShape == ArenaShape.hourglass, theme: theme, themeType: themeType, onTap: () => setStateDialog(() => localShape = ArenaShape.hourglass)),
                              NeonShapeButton(icon: Icons.all_inclusive, label: 'Caos', isSelected: localShape == ArenaShape.chaos, theme: theme, themeType: themeType, isSpecial: true, isLocked: !isChaosUnlocked, onTap: () => setStateDialog(() => localShape = ArenaShape.chaos)),
                            ],
                          ),
                          const SizedBox(height: 20), Divider(color: Colors.white.withOpacity(0.05), thickness: 2), const SizedBox(height: 20),

                          Text("GRANDEZZA", style: getSharedTextStyle(themeType, TextStyle(fontSize: 12, fontWeight: FontWeight.w900, color: theme.text.withOpacity(0.5), letterSpacing: 1.5))), const SizedBox(height: 10),
                          Row(
                            mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                            children: [
                              NeonSizeButton(label: 'S', isSelected: localRadius == 3, theme: theme, themeType: themeType, onTap: () => setStateDialog(() => localRadius = 3)),
                              NeonSizeButton(label: 'M', isSelected: localRadius == 4, theme: theme, themeType: themeType, onTap: () => setStateDialog(() => localRadius = 4)),
                              NeonSizeButton(label: 'L', isSelected: localRadius == 5, theme: theme, themeType: themeType, onTap: () => setStateDialog(() => localRadius = 5)),
                              NeonSizeButton(label: 'MAX', isSelected: localRadius == 6, theme: theme, themeType: themeType, onTap: () => setStateDialog(() => localRadius = 6)),
                            ],
                          ),
                          const SizedBox(height: 20), Divider(color: Colors.white.withOpacity(0.05), thickness: 2), const SizedBox(height: 20),
                        ],

                        Text("TEMPO", style: getSharedTextStyle(themeType, TextStyle(fontSize: 12, fontWeight: FontWeight.w900, color: theme.text.withOpacity(0.5), letterSpacing: 1.5))), const SizedBox(height: 10),
                        NeonTimeSwitch(isTimeMode: localTimeMode, theme: theme, themeType: themeType, onTap: () => setStateDialog(() => localTimeMode = !localTimeMode)), const SizedBox(height: 30),

                        SizedBox(
                          width: double.infinity, height: 60,
                          child: ElevatedButton(
                            style: ElevatedButton.styleFrom(backgroundColor: isVsCPU ? Colors.purple.shade400 : theme.playerRed, foregroundColor: Colors.white, shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(20))),
                            onPressed: () { Navigator.pop(ctx); context.read<GameController>().startNewGame(localRadius, vsCPU: isVsCPU, shape: localShape, timeMode: localTimeMode); Navigator.push(context, MaterialPageRoute(builder: (_) => const GameScreen())); },
                            child: Text(loc.startGame, style: const TextStyle(fontSize: 18, fontWeight: FontWeight.w900, letterSpacing: 2)),
                          ),
                        )
                      ],
                    ),
                  ),
                ),
              );

              if (themeType == AppThemeType.cyberpunk || themeType == AppThemeType.music) {
                dialogContent = AnimatedCyberBorder(child: dialogContent);
              }

              return Dialog(backgroundColor: Colors.transparent, insetPadding: const EdgeInsets.symmetric(horizontal: 15, vertical: 20), child: dialogContent);
            },
          );
        }
    );
  }

  // ===========================================================================
  // INTERFACCIA PRINCIPALE
  // ===========================================================================

  BoxDecoration _glassBoxDecoration(ThemeColors theme, AppThemeType themeType) {
    return BoxDecoration(
      color: themeType == AppThemeType.doodle ? Colors.white : theme.text.withOpacity(0.05),
      borderRadius: BorderRadius.circular(25),
      border: Border.all(
        color: themeType == AppThemeType.doodle ? theme.text : Colors.white.withOpacity(0.2),
        width: themeType == AppThemeType.doodle ? 2 : 1.5,
      ),
      boxShadow: themeType == AppThemeType.doodle
          ? [BoxShadow(color: theme.text.withOpacity(0.8), offset: const Offset(4, 4), blurRadius: 0)]
          : [BoxShadow(color: Colors.black.withOpacity(0.2), blurRadius: 10)],
    );
  }

  Widget _buildTopBar(BuildContext context, ThemeColors theme, AppThemeType themeType, String playerName, int playerLevel) {
    Color inkColor = const Color(0xFF111122);

    return Padding(
      padding: const EdgeInsets.only(top: 5.0, left: 15.0, right: 15.0, bottom: 10.0),
      child: Row(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          // --- SINISTRA: RIQUADRO GIOCATORE ---
          GestureDetector(
            onTap: _showNameDialog,
            child: Container(
              padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
              decoration: _glassBoxDecoration(theme, themeType),
              child: Row(
                mainAxisSize: MainAxisSize.min,
                children: [
                  CircleAvatar(
                    radius: 18,
                    backgroundColor: theme.playerBlue.withOpacity(0.2),
                    child: Icon(Icons.person, color: theme.playerBlue, size: 20),
                  ),
                  const SizedBox(width: 10),
                  Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    mainAxisSize: MainAxisSize.min,
                    children: [
                      Text(playerName.toUpperCase(), style: getSharedTextStyle(themeType, TextStyle(color: themeType == AppThemeType.doodle ? inkColor : theme.text, fontWeight: FontWeight.bold, fontSize: 16))),
                      Text("LIV. $playerLevel", style: getSharedTextStyle(themeType, TextStyle(color: themeType == AppThemeType.doodle ? inkColor.withOpacity(0.8) : theme.playerBlue, fontWeight: FontWeight.bold, fontSize: 11))),
                    ],
                  ),
                ],
              ),
            ),
          ),

          // --- DESTRA: RIQUADRO STATISTICHE E AUDIO ---
          Container(
            padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 12),
            decoration: _glassBoxDecoration(theme, themeType),
            child: Row(
              mainAxisSize: MainAxisSize.min,
              children: [
                Icon(themeType == AppThemeType.music ? FontAwesomeIcons.microphone : Icons.emoji_events, color: Colors.amber.shade600, size: 16),
                const SizedBox(width: 6),
                Text("${StorageService.instance.wins}", style: getSharedTextStyle(themeType, TextStyle(color: themeType == AppThemeType.doodle ? inkColor : theme.text, fontWeight: FontWeight.w900))),
                const SizedBox(width: 12),
                Icon(themeType == AppThemeType.music ? FontAwesomeIcons.compactDisc : Icons.sentiment_very_dissatisfied, color: theme.playerRed.withOpacity(0.8), size: 16),
                const SizedBox(width: 6),
                Text("${StorageService.instance.losses}", style: getSharedTextStyle(themeType, TextStyle(color: themeType == AppThemeType.doodle ? inkColor : theme.text, fontWeight: FontWeight.w900))),

                const SizedBox(width: 12),
                Container(width: 1, height: 20, color: (themeType == AppThemeType.doodle ? inkColor : Colors.white).withOpacity(0.2)),
                const SizedBox(width: 12),

                AnimatedBuilder(
                    animation: AudioService.instance,
                    builder: (context, child) {
                      bool isMuted = AudioService.instance.isMuted;
                      return GestureDetector(
                        behavior: HitTestBehavior.opaque,
                        onTap: () {
                          AudioService.instance.toggleMute();
                        },
                        child: Icon(
                          isMuted ? Icons.volume_off : Icons.volume_up,
                          color: isMuted ? theme.playerRed : (themeType == AppThemeType.doodle ? inkColor : theme.text),
                          size: 20,
                        ),
                      );
                    }
                ),
              ],
            ),
          ),
        ],
      ),
    );
  }

  Widget _buildCyberCard(Widget card, AppThemeType themeType) {
    if (themeType == AppThemeType.cyberpunk) return AnimatedCyberBorder(child: card);
    return card;
  }

  @override
  Widget build(BuildContext context) {
    SystemChrome.setEnabledSystemUIMode(SystemUiMode.immersiveSticky);
    SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp, DeviceOrientation.portraitDown]);

    final themeManager = context.watch<ThemeManager>();
    final themeType = themeManager.currentThemeType;
    final theme = themeManager.currentColors;
    Color inkColor = const Color(0xFF111122);
    final loc = AppLocalizations.of(context)!;

    String? bgImage;
    if (themeType == AppThemeType.wood) bgImage = 'assets/images/wood_bg.jpg';
    if (themeType == AppThemeType.doodle) bgImage = 'assets/images/doodle_bg.jpg';
    if (themeType == AppThemeType.cyberpunk) bgImage = 'assets/images/cyber_bg.jpg';
    if (themeType == AppThemeType.music) bgImage = 'assets/images/music_bg.jpg';
    if (themeType == AppThemeType.arcade) bgImage = 'assets/images/arcade.jpg';
    if (themeType == AppThemeType.grimorio) bgImage = 'assets/images/grimorio.jpg';

    String playerName = StorageService.instance.playerName;
    if (playerName.isEmpty) playerName = "GUEST";
    int playerLevel = StorageService.instance.playerLevel;

    Widget uiContent = SafeArea(
      child: Column(
        children: [
          // 1. TOP BAR (Sempre visibile in alto)
          _buildTopBar(context, theme, themeType, playerName, playerLevel),

          // 2. CONTENUTO SCORREVOLE (Logo + Bottoni)
          Expanded(
            child: SingleChildScrollView(
              physics: const BouncingScrollPhysics(),
              child: Padding(
                padding: const EdgeInsets.symmetric(horizontal: 20.0),
                child: Column(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: [
                    const SizedBox(height: 20),
                    Center(
                      child: Transform.rotate(
                        angle: themeType == AppThemeType.doodle ? -0.04 : 0,
                        child: GestureDetector(
                          onTap: () {
                            _debugTapCount++;
                            if (_debugTapCount == 5) {
                              StorageService.instance.addXP(2000);
                              setState(() {});
                              ScaffoldMessenger.of(context).showSnackBar(
                                  SnackBar(content: Text("🛠 DEBUG MODE: +20 Livelli!", style: getSharedTextStyle(themeType, const TextStyle(color: Colors.white, fontWeight: FontWeight.bold))), backgroundColor: Colors.purpleAccent, behavior: SnackBarBehavior.floating, shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(15)))
                              );
                            } else if (_debugTapCount >= 7) {
                              _debugTapCount = 0;
                              Navigator.push(context, MaterialPageRoute(builder: (_) => const AdminScreen()));
                            }
                          },
                          child: FittedBox(
                            fit: BoxFit.scaleDown,
                            child: Text(
                                loc.appTitle.toUpperCase(),
                                style: getSharedTextStyle(themeType, TextStyle(
                                    fontSize: 65,
                                    fontWeight: FontWeight.w900,
                                    color: themeType == AppThemeType.doodle ? inkColor : theme.text,
                                    letterSpacing: 10,
                                    shadows: themeType == AppThemeType.doodle
                                        ? [const Shadow(color: Colors.white, offset: Offset(-2.5, -2.5), blurRadius: 0), Shadow(color: Colors.black.withOpacity(0.25), offset: const Offset(2.5, 2.5), blurRadius: 1)]
                                        : themeType == AppThemeType.arcade || themeType == AppThemeType.music ? [] : [BoxShadow(color: Colors.black.withOpacity(0.6), offset: const Offset(3, 6), blurRadius: 8), BoxShadow(color: theme.playerBlue.withOpacity(0.4), offset: const Offset(0, 0), blurRadius: 20)]
                                ))
                            ),
                          ),
                        ),
                      ),
                    ),
                    const SizedBox(height: 40),

                    // --- MENU IN BASE AL TEMA ---
                    if (themeType == AppThemeType.music) ...[
                      MusicCassetteCard(title: loc.onlineTitle, subtitle: loc.onlineSub, neonColor: Colors.blueAccent, angle: -0.04, leftIcon: FontAwesomeIcons.sliders, rightIcon: FontAwesomeIcons.globe, themeType: themeType, onTap: () { Navigator.push(context, MaterialPageRoute(builder: (_) => const LobbyScreen())); }),
                      const SizedBox(height: 12),
                      MusicCassetteCard(title: loc.cpuTitle, subtitle: loc.cpuSub, neonColor: Colors.purpleAccent, angle: 0.03, leftIcon: FontAwesomeIcons.desktop, rightIcon: FontAwesomeIcons.music, themeType: themeType, onTap: () => _showMatchSetupDialog(true)),
                      const SizedBox(height: 12),
                      MusicCassetteCard(title: loc.localTitle, subtitle: loc.localSub, neonColor: Colors.deepPurpleAccent, angle: -0.02, leftIcon: FontAwesomeIcons.headphones, rightIcon: FontAwesomeIcons.headphones, themeType: themeType, onTap: () => _showMatchSetupDialog(false)),
                      const SizedBox(height: 30),
                      Row(
                        mainAxisAlignment: MainAxisAlignment.spaceEvenly, crossAxisAlignment: CrossAxisAlignment.start,
                        children: [
                          Expanded(child: MusicKnobCard(title: loc.leaderboardTitle, icon: FontAwesomeIcons.compactDisc, iconColor: Colors.amber, themeType: themeType, onTap: () => showDialog(context: context, builder: (ctx) => const LeaderboardDialog()))),
                          Expanded(child: MusicKnobCard(title: loc.questsTitle, icon: FontAwesomeIcons.microphoneLines, themeType: themeType, onTap: () => showDialog(context: context, builder: (ctx) => const QuestsDialog()))),
                          Expanded(child: MusicKnobCard(title: loc.themesTitle, icon: FontAwesomeIcons.palette, themeType: themeType, onTap: () => Navigator.push(context, MaterialPageRoute(builder: (_) => const SettingsScreen())))),
                          Expanded(child: MusicKnobCard(title: loc.tutorialTitle, icon: FontAwesomeIcons.bookOpen, themeType: themeType, onTap: () => showDialog(context: context, builder: (ctx) => const TutorialDialog()))),
                        ],
                      ),
                    ] else ...[
                      Column(
                        crossAxisAlignment: CrossAxisAlignment.stretch,
                        children: [
                          _buildCyberCard(FeatureCard(title: loc.onlineTitle, subtitle: loc.onlineSub, icon: Icons.public, color: Colors.lightBlue.shade200, theme: theme, themeType: themeType, isFeatured: true, onTap: () { Navigator.push(context, MaterialPageRoute(builder: (_) => const LobbyScreen())); }), themeType),
                          const SizedBox(height: 12),
                          _buildCyberCard(FeatureCard(title: loc.cpuTitle, subtitle: loc.cpuSub, icon: Icons.smart_toy, color: Colors.purple.shade200, theme: theme, themeType: themeType, onTap: () => _showMatchSetupDialog(true)), themeType),
                          const SizedBox(height: 12),
                          _buildCyberCard(FeatureCard(title: loc.localTitle, subtitle: loc.localSub, icon: Icons.people_alt, color: Colors.red.shade200, theme: theme, themeType: themeType, onTap: () => _showMatchSetupDialog(false)), themeType),
                          const SizedBox(height: 12),

                          Row(
                            children: [
                              Expanded(child: _buildCyberCard(FeatureCard(title: loc.leaderboardTitle, subtitle: "Top 50 Globale", icon: Icons.leaderboard, color: Colors.amber.shade200, theme: theme, themeType: themeType, onTap: () => showDialog(context: context, builder: (ctx) => const LeaderboardDialog()), compact: true), themeType)),
                              const SizedBox(width: 12),
                              Expanded(child: _buildCyberCard(FeatureCard(title: loc.questsTitle, subtitle: "Missioni", icon: Icons.assignment_turned_in, color: Colors.green.shade200, theme: theme, themeType: themeType, onTap: () => showDialog(context: context, builder: (ctx) => const QuestsDialog()), compact: true), themeType)),
                            ],
                          ),

                          const SizedBox(height: 12),

                          Row(
                            children: [
                              Expanded(child: _buildCyberCard(FeatureCard(title: loc.themesTitle, subtitle: "Personalizza", icon: Icons.palette, color: Colors.teal.shade200, theme: theme, themeType: themeType, onTap: () => Navigator.push(context, MaterialPageRoute(builder: (_) => const SettingsScreen())), compact: true), themeType)),
                              const SizedBox(width: 12),
                              Expanded(child: _buildCyberCard(FeatureCard(title: loc.tutorialTitle, subtitle: "Come giocare", icon: Icons.school, color: Colors.indigo.shade200, theme: theme, themeType: themeType, onTap: () => showDialog(context: context, builder: (ctx) => const TutorialDialog()), compact: true), themeType)),
                            ],
                          ),
                        ],
                      ),
                    ],
                    const SizedBox(height: 40), // Margine in fondo per assicurare che ci sia respiro
                  ],
                ),
              ),
            ),
          ),
        ],
      ),
    );

    return Scaffold(
      backgroundColor: bgImage != null ? Colors.transparent : theme.background,
      extendBodyBehindAppBar: true, // Rimosso l'AppBar vuoto che "spingeva" giù il SafeArea!
      body: Stack(
        children: [
          // 1. Sfondo base a tinta unita
          Container(color: themeType == AppThemeType.doodle ? Colors.white : theme.background),

          // 2. Immagine di Sfondo per tutti i temi che la supportano
          if (bgImage != null)
            Positioned.fill(
              child: Image.asset(
                bgImage,
                fit: BoxFit.cover,
                alignment: Alignment.center,
              ),
            ),

          // 3. Griglia a righe incrociate per il doodle
          if (themeType == AppThemeType.doodle)
            Positioned.fill(
              child: CustomPaint(
                painter: FullScreenGridPainter(Colors.blue.withOpacity(0.15)),
              ),
            ),

          // 4. Patina scura (Cyberpunk, Music, Arcade e Grimorio)
          if (bgImage != null && (themeType == AppThemeType.cyberpunk || themeType == AppThemeType.music || themeType == AppThemeType.arcade || themeType == AppThemeType.grimorio))
            Positioned.fill(
              child: Container(
                decoration: BoxDecoration(
                    gradient: LinearGradient(
                        begin: Alignment.topCenter, end: Alignment.bottomCenter,
                        colors: [Colors.black.withOpacity(0.4), Colors.black.withOpacity(0.8)]
                    )
                ),
              ),
            ),

          // 5. Cavi musicali (Tema Musica)
          if (themeType == AppThemeType.music)
            Positioned.fill(
              child: IgnorePointer(
                child: CustomPaint(
                  painter: AudioCablesPainter(),
                ),
              ),
            ),

          // 6. UI
          Positioned.fill(child: uiContent),
        ],
      ),
    );
  }
}