import 'dart:convert';
import 'dart:io';

import 'package:cached_network_image/cached_network_image.dart';
import '../core/utils/error_utils.dart';
import 'package:flutter/foundation.dart' show kIsWeb;
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:http/http.dart' as http;
import 'package:image_picker/image_picker.dart';
import 'package:shared_preferences/shared_preferences.dart';

import 'package:provider/provider.dart';
import '../features/events/services/events_service.dart';
import '../features/events/models/event_models.dart';
import '../features/gamification/providers/gamification_provider.dart';
import '../features/gamification/models/gamification_models.dart';
import '../widgets/skeleton_loader.dart';
import '../widgets/tier_avatar_ring.dart';
import 'learn_more_screen.dart';
import 'settings_screen.dart';
import '../core/api/api_endpoints.dart';
import '../core/app_decoration.dart';
import '../core/constants.dart';
import '../widgets/landscape_section_header.dart';
import '../features/share/share_rank_card.dart';
import '../core/analytics/posthog_service.dart';

class ProfileScreen extends StatefulWidget {
  const ProfileScreen({Key? key}) : super(key: key);

  @override
  State<ProfileScreen> createState() => _ProfileScreenState();
}

class _ProfileScreenState extends State<ProfileScreen>
    with SingleTickerProviderStateMixin {
  String _username = '';
  String _email = 'not provided';
  String _profileImage = '';
  String? _eventifyId;
  String? _userTier;
  String? _district;
  DateTime? _districtChangedAt;
  final ImagePicker _picker = ImagePicker();

  // 14 Kerala districts
  static const List<String> _districts = [
    'Thiruvananthapuram', 'Kollam', 'Pathanamthitta', 'Alappuzha',
    'Kottayam', 'Idukki', 'Ernakulam', 'Thrissur', 'Palakkad',
    'Malappuram', 'Kozhikode', 'Wayanad', 'Kannur', 'Kasaragod',
  ];

  final EventsService _eventsService = EventsService();

  // AUTH-005: District change cooldown (183-day lock)
  bool get _districtLocked {
    if (_districtChangedAt == null) return false;
    return DateTime.now().difference(_districtChangedAt!) < const Duration(days: 183);
  }

  String get _districtNextChange {
    if (_districtChangedAt == null) return '';
    final next = _districtChangedAt!.add(const Duration(days: 183));
    const months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
                    'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
    return '${next.day} ${months[next.month - 1]} ${next.year}';
  }

  List<EventModel> _ongoingEvents = [];

  bool _loadingEvents = true;

  // Gradient used for EXP bar and rainbow bar (6-color rainbow)
  static const LinearGradient _expGradient = LinearGradient(
    colors: [
      Color(0xFFA855F7), // purple-500
      Color(0xFFEC4899), // pink-500
      Color(0xFFF97316), // orange-500
      Color(0xFFEAB308), // yellow-500
      Color(0xFF22C55E), // green-500
      Color(0xFF3B82F6), // blue-500
    ],
  );

  // Animation state
  late AnimationController _animController;
  double _expProgress = 0.0;
  int _animatedLikes = 0;
  int _animatedPosts = 0;
  int _animatedViews = 0;

  // Target stat values (matching web: 1.2K, 45, 3.4K)
  static const int _targetLikes = 1200;
  static const int _targetPosts = 45;
  static const int _targetViews = 3400;

  @override
  void initState() {
    super.initState();
    PostHogService.instance.screen('Profile');

    // Animation controller for EXP bar + stat counters
    _animController = AnimationController(
      vsync: this,
      duration: const Duration(milliseconds: 2000),
    );

    _loadProfile();
    _startAnimations();

    // Load gamification data for profile EP cards
    WidgetsBinding.instance.addPostFrameCallback((_) {
      if (mounted) context.read<GamificationProvider>().loadAll(force: true);
    });
  }

  @override
  void dispose() {
    _animController.dispose();
    super.dispose();
  }

  void _startAnimations() {
    // Delay to match React's setTimeout(500ms)
    Future.delayed(const Duration(milliseconds: 500), () {
      if (!mounted) return;

      // Animate EXP bar: 0 → 0.65 with ease-out over 1.3s
      final expTween = Tween<double>(begin: 0.0, end: 0.65);
      final expAnim = CurvedAnimation(
        parent: _animController,
        curve: const Interval(0.0, 0.65, curve: Curves.easeOut),
      );
      // Update fields without setState — AnimatedBuilder handles the rebuilds
      expAnim.addListener(() {
        _expProgress = expTween.evaluate(expAnim);
      });

      _animController.addListener(() {
        final t = _animController.value;
        _animatedLikes = (t * _targetLikes).round();
        _animatedPosts = (t * _targetPosts).round();
        _animatedViews = (t * _targetViews).round();
      });

      _animController.forward();
    });
  }

  /// Format large numbers: ≥1M → "X.XM", ≥1K → "X.XK", else raw
  String _formatNumber(int n) {
    if (n >= 1000000) {
      final val = n / 1000000;
      return '${val.toStringAsFixed(1)}M';
    } else if (n >= 1000) {
      final val = n / 1000;
      return '${val.toStringAsFixed(1)}K';
    }
    return n.toString();
  }

  // ───────── Data Loading (unchanged) ─────────

  Future<void> _loadProfile() async {
    final prefs = await SharedPreferences.getInstance();
    final currentEmail =
        prefs.getString('current_email') ?? prefs.getString('email') ?? '';

    _email = currentEmail.isNotEmpty ? currentEmail : 'not provided';

    final displayKey =
        currentEmail.isNotEmpty ? 'display_name_$currentEmail' : 'display_name';
    final profileImageKey =
        currentEmail.isNotEmpty ? 'profileImage_$currentEmail' : 'profileImage';

    _username = prefs.getString(displayKey) ??
        prefs.getString('display_name') ??
        _email;
    _profileImage =
        prefs.getString(profileImageKey) ?? prefs.getString('profileImage') ?? '';

    // AUTH-003/PROF-001: Eventify ID
    _eventifyId = prefs.getString('eventify_id');

    // PROF-004 partial: tier for avatar ring
    _userTier = prefs.getString('user_tier') ?? prefs.getString('level');

    // PROF-002: District
    _district = prefs.getString('district');

    // AUTH-005: District change cooldown
    final districtChangedStr = prefs.getString('district_changed_at');
    if (districtChangedStr != null) {
      _districtChangedAt = DateTime.tryParse(districtChangedStr);
    }

    await _loadEventsForProfile(prefs);
    if (mounted) setState(() {});
  }

  Future<void> _loadEventsForProfile([SharedPreferences? prefs]) async {
      _ongoingEvents = [];

    prefs ??= await SharedPreferences.getInstance();
    final pincode = prefs.getString('pincode') ?? 'all';

    try {
      final events = await _eventsService.getEventsByPincode(pincode);

      final now = DateTime.now();
      final today = DateTime(now.year, now.month, now.day);
      final ongoing = <EventModel>[];

      DateTime? tryParseDate(String? s) {
        if (s == null) return null;
        try {
          return DateTime.tryParse(s);
        } catch (_) {
          return null;
        }
      }

      for (final e in events) {
        final parsedStart = tryParseDate(e.startDate);
        final parsedEnd = tryParseDate(e.endDate);

        if (parsedStart == null) {
          // treat as ongoing or handle differently
        } else if (parsedStart.isAtSameMomentAs(today) ||
            (parsedStart.isBefore(today) &&
                parsedEnd != null &&
                !parsedEnd.isBefore(today))) {
          ongoing.add(e);
        } else if (parsedStart.isBefore(today)) {
          // ignore past
        }
      }


      if (mounted) {
        setState(() {
          _ongoingEvents = ongoing;
        });
      }
    } catch (e) {
      if (mounted) {
        ScaffoldMessenger.of(context)
            .showSnackBar(SnackBar(content: Text(userFriendlyError(e))));
      }
    } finally {
      if (mounted) setState(() => _loadingEvents = false);
    }
  }

  Future<void> _saveProfile(
      String name, String email, String profileImage) async {
    final prefs = await SharedPreferences.getInstance();
    final currentEmail =
        prefs.getString('current_email') ?? prefs.getString('email') ?? email;

    final displayKey =
        currentEmail.isNotEmpty ? 'display_name_$currentEmail' : 'display_name';
    final profileImageKey =
        currentEmail.isNotEmpty ? 'profileImage_$currentEmail' : 'profileImage';

    await prefs.setString(displayKey, name);
    await prefs.setString(profileImageKey, profileImage);
    await prefs.setString('email', currentEmail);
    await prefs.setString('current_email', currentEmail);

    setState(() {
      _username = name;
      _email = currentEmail.isNotEmpty ? currentEmail : 'not provided';
      _profileImage = profileImage;
    });
  }

  // ───────── Image picking (unchanged) ─────────

  Future<void> _pickFromGallery() async {
    try {
      final XFile? xfile =
          await _picker.pickImage(source: ImageSource.gallery, imageQuality: 85);
      if (xfile == null) return;
      if (kIsWeb) {
        ScaffoldMessenger.of(context).showSnackBar(const SnackBar(
            content:
                Text('Use "Enter Asset Path" on web/desktop or add server URL.')));
        return;
      }
      final String path = xfile.path;
      await _saveProfile(_username, _email, path);
      // PROF-004: Upload to server on mobile
      await _uploadProfilePhoto(path);
    } catch (e) {
      debugPrint('Image pick error: $e');
      ScaffoldMessenger.of(context)
          .showSnackBar(SnackBar(content: Text(userFriendlyError(e))));
    }
  }

  // PROF-004: Upload profile photo to server
  Future<void> _uploadProfilePhoto(String filePath) async {
    try {
      final prefs = await SharedPreferences.getInstance();
      final token = prefs.getString('access_token') ?? '';
      if (token.isEmpty) return;
      final request = http.MultipartRequest(
        'PATCH',
        Uri.parse('${ApiEndpoints.baseUrl}/user/update-profile/'),
      );
      request.headers['Authorization'] = 'Bearer $token';
      request.files.add(await http.MultipartFile.fromPath('profile_picture', filePath));
      final response = await request.send();
      if (response.statusCode == 200) {
        final body = await response.stream.bytesToString();
        final data = jsonDecode(body) as Map<String, dynamic>;
        if (data['profile_picture'] != null) {
          final newUrl = data['profile_picture'].toString();
          final prefs2 = await SharedPreferences.getInstance();
          final currentEmail = prefs2.getString('current_email') ?? prefs2.getString('email') ?? '';
          final profileImageKey = currentEmail.isNotEmpty ? 'profileImage_$currentEmail' : 'profileImage';
          await prefs2.setString(profileImageKey, newUrl);
          if (mounted) setState(() => _profileImage = newUrl);
        }
      }
    } catch (e) {
      debugPrint('Photo upload error: $e');
    }
  }

  // PROF-002: Update district via API with cooldown check
  Future<void> _updateDistrict(String district) async {
    if (_districtLocked) {
      if (mounted) {
        ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(content: Text('District locked until $_districtNextChange')),
        );
      }
      return;
    }
    try {
      final prefs = await SharedPreferences.getInstance();
      final token = prefs.getString('access_token') ?? '';
      final response = await http.patch(
        Uri.parse('${ApiEndpoints.baseUrl}/user/update-profile/'),
        headers: {
          'Authorization': 'Bearer $token',
          'Content-Type': 'application/json',
        },
        body: jsonEncode({'district': district}),
      );
      if (response.statusCode == 200) {
        final now = DateTime.now();
        await prefs.setString('district', district);
        await prefs.setString('district_changed_at', now.toIso8601String());
        if (mounted) {
          setState(() {
            _district = district;
            _districtChangedAt = now;
          });
        }
      }
    } catch (e) {
      debugPrint('District update error: $e');
      if (mounted) {
        ScaffoldMessenger.of(context)
            .showSnackBar(SnackBar(content: Text(userFriendlyError(e))));
      }
    }
  }

  Future<void> _enterAssetPathDialog() async {
    final ctl = TextEditingController(text: _profileImage);
    final result = await showDialog<String?>(
      context: context,
      builder: (ctx) {
        // Note: ctl is disposed after dialog closes below
        final theme = Theme.of(ctx);
        return AlertDialog(
          title: const Text('Enter image path or URL'),
          content: Column(
            mainAxisSize: MainAxisSize.min,
            children: [
              TextField(
                controller: ctl,
                decoration: const InputDecoration(
                  labelText: 'Asset path (e.g. assets/images/profile.jpg) or URL',
                ),
              ),
              const SizedBox(height: 8),
              Text(
                'Use an asset path (for bundled images) or an https:// URL (web).',
                style:
                    theme.textTheme.bodySmall?.copyWith(color: theme.hintColor),
              ),
            ],
          ),
          actions: [
            TextButton(
                onPressed: () => Navigator.of(ctx).pop(null),
                child: const Text('Cancel')),
            ElevatedButton(
                onPressed: () => Navigator.of(ctx).pop(ctl.text.trim()),
                child: const Text('Use')),
          ],
        );
      },
    );

    ctl.dispose();
    if (result == null || result.isEmpty) return;
    await _saveProfile(_username, _email, result);
  }

  Future<void> _openEditDialog() async {
    final nameCtl = TextEditingController(text: _username);
    final emailCtl = TextEditingController(text: _email);

    showModalBottomSheet(
      context: context,
      isScrollControlled: true,
      backgroundColor: Colors.transparent,
      builder: (ctx) {
        // nameCtl and emailCtl are disposed via .then() below
        final theme = Theme.of(ctx);
        return DraggableScrollableSheet(
          expand: false,
          initialChildSize: 0.44,
          minChildSize: 0.28,
          maxChildSize: 0.92,
          builder: (context, scrollController) {
            return Container(
              padding: const EdgeInsets.fromLTRB(18, 14, 18, 18),
              decoration: BoxDecoration(
                color: theme.cardColor,
                borderRadius:
                    const BorderRadius.vertical(top: Radius.circular(20)),
              ),
              child: SingleChildScrollView(
                controller: scrollController,
                child: Column(
                  children: [
                    Container(
                        width: 48,
                        height: 6,
                        decoration: BoxDecoration(
                            color: theme.dividerColor,
                            borderRadius: BorderRadius.circular(6))),
                    const SizedBox(height: 12),
                    Row(
                      children: [
                        Text('Edit profile',
                            style: theme.textTheme.titleMedium
                                ?.copyWith(fontWeight: FontWeight.bold)),
                        const Spacer(),
                        IconButton(
                          icon: const Icon(Icons.photo_camera),
                          onPressed: () async {
                            Navigator.of(context).pop();
                            await _pickFromGallery();
                          },
                        ),
                        IconButton(
                          icon: const Icon(Icons.link),
                          onPressed: () {
                            Navigator.of(context).pop();
                            _enterAssetPathDialog();
                          },
                        ),
                      ],
                    ),
                    const SizedBox(height: 8),
                    TextField(
                        controller: nameCtl,
                        decoration: InputDecoration(
                            labelText: 'Name',
                            filled: true,
                            fillColor: theme.cardColor,
                            border: OutlineInputBorder(
                                borderRadius: BorderRadius.circular(8)))),
                    const SizedBox(height: 8),
                    TextField(
                        controller: emailCtl,
                        decoration: InputDecoration(
                            labelText: 'Email',
                            filled: true,
                            fillColor: theme.cardColor,
                            border: OutlineInputBorder(
                                borderRadius: BorderRadius.circular(8)))),
                    const SizedBox(height: 14),
                    Row(
                      children: [
                        const Spacer(),
                        TextButton(
                            onPressed: () => Navigator.of(context).pop(),
                            child: const Text('Cancel')),
                        const SizedBox(width: 8),
                        ElevatedButton(
                          onPressed: () async {
                            final newName = nameCtl.text.trim().isEmpty
                                ? _email
                                : nameCtl.text.trim();
                            final newEmail = emailCtl.text.trim().isEmpty
                                ? _email
                                : emailCtl.text.trim();
                            await _saveProfile(newName, newEmail, _profileImage);
                            Navigator.of(context).pop();
                          },
                          child: const Text('Save'),
                        ),
                      ],
                    ),
                    const SizedBox(height: 8),
                    Text(
                      'Tip: tap the camera icon to pick from gallery (mobile). Or tap the link icon to paste an asset path or URL.',
                      style: theme.textTheme.bodySmall
                          ?.copyWith(color: theme.hintColor),
                    ),
                    const SizedBox(height: 20),

                    // PROF-002: District picker
                    Align(
                      alignment: Alignment.centerLeft,
                      child: Text(
                        'District',
                        style: theme.textTheme.bodyMedium?.copyWith(
                          fontWeight: FontWeight.w600,
                        ),
                      ),
                    ),
                    const SizedBox(height: 8),

                    // AUTH-005: Cooldown lock indicator
                    if (_districtLocked)
                      Padding(
                        padding: const EdgeInsets.only(bottom: 8),
                        child: Row(
                          children: [
                            const Icon(Icons.lock_outline,
                                size: 14, color: Colors.amber),
                            const SizedBox(width: 4),
                            Text(
                              'District locked until $_districtNextChange',
                              style: const TextStyle(
                                  fontSize: 12, color: Colors.amber),
                            ),
                          ],
                        ),
                      ),

                    // District pill grid
                    StatefulBuilder(
                      builder: (ctx2, setInner) {
                        return Wrap(
                          spacing: 8,
                          runSpacing: 8,
                          children: _districts.map((d) {
                            final isSelected = _district == d;
                            return GestureDetector(
                              onTap: _districtLocked
                                  ? null
                                  : () async {
                                      setInner(() {});
                                      await _updateDistrict(d);
                                    },
                              child: AnimatedContainer(
                                duration: const Duration(milliseconds: 180),
                                padding: const EdgeInsets.symmetric(
                                    horizontal: 12, vertical: 6),
                                decoration: BoxDecoration(
                                  color: isSelected
                                      ? const Color(0xFF3B82F6)
                                      : theme.cardColor,
                                  borderRadius: BorderRadius.circular(20),
                                  border: Border.all(
                                    color: isSelected
                                        ? const Color(0xFF3B82F6)
                                        : theme.dividerColor,
                                  ),
                                ),
                                child: Text(
                                  d,
                                  style: TextStyle(
                                    fontSize: 12,
                                    color: isSelected
                                        ? Colors.white
                                        : theme.textTheme.bodyMedium?.color,
                                    fontWeight: isSelected
                                        ? FontWeight.w600
                                        : FontWeight.normal,
                                  ),
                                ),
                              ),
                            );
                          }).toList(),
                        );
                      },
                    ),
                    const SizedBox(height: 8),
                  ],
                ),
              ),
            );
          },
        );
      },
    ).then((_) {
      nameCtl.dispose();
      emailCtl.dispose();
    });
  }

  // ───────── Avatar builder (AUTH-006 / PROF-004: DiceBear via TierAvatarRing) ─────────

  Widget _buildProfileAvatar({double size = 96}) {
    final path = _profileImage.trim();
    // Resolve a network-compatible URL: http URLs pass through directly,
    // file paths and assets fall back to null so DiceBear is used.
    String? imageUrl;
    if (path.startsWith('http')) {
      imageUrl = path;
    }
    return TierAvatarRing(
      username: _username.isNotEmpty ? _username : _email,
      tier: _userTier ?? '',
      size: size,
      imageUrl: imageUrl,
    );
  }

  // ───────── Event list tile (updated styling) ─────────

  Widget _eventListTileFromModel(EventModel ev, {bool faded = false}) {
    final theme = Theme.of(context);
    final title = ev.title ?? ev.name ?? '';
    final dateLabel =
        (ev.startDate != null && ev.endDate != null && ev.startDate == ev.endDate)
            ? ev.startDate!
            : ((ev.startDate != null && ev.endDate != null)
                ? '${ev.startDate} - ${ev.endDate}'
                : (ev.startDate ?? ''));
    final location = ev.place ?? '';
    final imageUrl = (ev.thumbImg != null && ev.thumbImg!.isNotEmpty)
        ? ev.thumbImg!
        : (ev.images.isNotEmpty ? ev.images.first.image : null);

    final titleStyle = theme.textTheme.bodyLarge?.copyWith(
        fontWeight: FontWeight.w600,
        color: faded ? theme.hintColor : theme.textTheme.bodyLarge?.color);
    final subtitleStyle = theme.textTheme.bodySmall?.copyWith(
        fontSize: 13,
        color: faded
            ? theme.hintColor.withValues(alpha: 0.7)
            : theme.hintColor);

    Widget leadingWidget() {
      if (imageUrl != null && imageUrl.trim().isNotEmpty) {
        if (imageUrl.startsWith('http')) {
          return ClipRRect(
              borderRadius: BorderRadius.circular(12),
              child: CachedNetworkImage(
                  imageUrl: imageUrl,
                  memCacheWidth: 120,
                  memCacheHeight: 120,
                  width: 60,
                  height: 60,
                  fit: BoxFit.cover,
                  placeholder: (_, __) => Container(
                      width: 60,
                      height: 60,
                      color: const Color(0xFFE5E7EB)),
                  errorWidget: (_, __, ___) => Container(
                      width: 60,
                      height: 60,
                      color: theme.dividerColor,
                      child: Icon(Icons.image, color: theme.hintColor))));
        } else if (!kIsWeb) {
          final path = imageUrl;
          if (path.startsWith('/') || path.contains(Platform.pathSeparator)) {
            final file = File(path);
            if (file.existsSync()) {
              return ClipRRect(
                  borderRadius: BorderRadius.circular(12),
                  child: Image.file(file,
                      width: 60,
                      height: 60,
                      fit: BoxFit.cover,
                      errorBuilder: (_, __, ___) => Container(
                          width: 60,
                          height: 60,
                          color: theme.dividerColor,
                          child: Icon(Icons.image, color: theme.hintColor))));
            }
          }
        }
        return ClipRRect(
            borderRadius: BorderRadius.circular(12),
            child: Image.asset(imageUrl,
                width: 60,
                height: 60,
                fit: BoxFit.cover,
                errorBuilder: (_, __, ___) => Container(
                    width: 60,
                    height: 60,
                    color: theme.dividerColor,
                    child: Icon(Icons.image, color: theme.hintColor))));
      }
      return Container(
          width: 60,
          height: 60,
          decoration: BoxDecoration(
            color: theme.dividerColor,
            borderRadius: BorderRadius.circular(12),
          ),
          child: Icon(Icons.image, color: theme.hintColor));
    }

    return Container(
      margin: const EdgeInsets.symmetric(vertical: 6),
      decoration: BoxDecoration(
        color: theme.cardColor,
        borderRadius: BorderRadius.circular(16),
        boxShadow: [
          BoxShadow(
              color: Colors.black.withValues(alpha: 0.03),
              blurRadius: 15,
              offset: const Offset(0, 4))
        ],
      ),
      child: ListTile(
        onTap: () {
          if (ev.id != null) {
            Navigator.of(context)
                .push(MaterialPageRoute(builder: (_) => LearnMoreScreen(eventId: ev.id, initialEvent: ev)));
          }
        },
        contentPadding: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
        leading: leadingWidget(),
        title: Text(title, style: titleStyle),
        subtitle: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            const SizedBox(height: 4),
            Text(dateLabel, style: subtitleStyle),
            const SizedBox(height: 2),
            Text(location, style: subtitleStyle),
          ],
        ),
        trailing: Container(
          width: 40,
          height: 40,
          decoration: BoxDecoration(
              color: theme.colorScheme.primary.withValues(alpha: 0.12),
              borderRadius: BorderRadius.circular(10)),
          child: Icon(Icons.qr_code_scanner, color: theme.colorScheme.primary),
        ),
      ),
    );
  }

  // ═══════════════════════════════════════════════
  //  NEW UI WIDGETS — matching web profile layout
  // ═══════════════════════════════════════════════

  // ═══════════════════════════════════════════════
  //  MODERN UI WIDGETS
  // ═══════════════════════════════════════════════

  Widget _buildModernHeader(BuildContext context, ThemeData theme) {
    return Consumer<GamificationProvider>(
      builder: (context, gam, _) {
        final stats = gam.currentUserStats;
        final p = gam.profile;
        final tier = stats?.level ?? _userTier ?? 'Bronze';

        return Container(
          width: double.infinity,
          padding: const EdgeInsets.only(bottom: 30),
          decoration: const BoxDecoration(
            gradient: LinearGradient(
              colors: [Color(0xFF2563EB), Color(0xFF3B82F6)],
              begin: Alignment.topCenter,
              end: Alignment.bottomCenter,
            ),
            borderRadius: BorderRadius.only(
              bottomLeft: Radius.circular(40),
              bottomRight: Radius.circular(40),
            ),
          ),
          child: Column(
            children: [
              // Top Bar
              SafeArea(
                child: Padding(
                  padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 10),
                  child: Row(
                    children: [
                      const Spacer(),
                      GestureDetector(
                        onTap: () => Navigator.of(context).push(
                          MaterialPageRoute(builder: (_) => const SettingsScreen()),
                        ),
                        child: Container(
                          width: 40,
                          height: 40,
                          decoration: BoxDecoration(
                            color: Colors.white24,
                            borderRadius: BorderRadius.circular(10),
                          ),
                          child: const Icon(Icons.settings, color: Colors.white),
                        ),
                      ),
                    ],
                  ),
                ),
              ),

              // Profile Avatar
              Container(
                decoration: BoxDecoration(
                  shape: BoxShape.circle,
                  border: Border.all(color: Colors.white.withOpacity(0.5), width: 2),
                ),
                child: _buildProfileAvatar(size: 100),
              ),
              const SizedBox(height: 16),

              // Username
              Text(
                (p?.username.isNotEmpty == true) ? p!.username : _username,
                style: const TextStyle(
                  color: Colors.white,
                  fontSize: 24,
                  fontWeight: FontWeight.w800,
                  letterSpacing: -0.5,
                ),
              ),
              const SizedBox(height: 12),

              // Eventify ID Badge
              if ((p?.eventifyId ?? _eventifyId) != null)
                GestureDetector(
                  onTap: () {
                    final id = p?.eventifyId ?? _eventifyId!;
                    Clipboard.setData(ClipboardData(text: id));
                    ScaffoldMessenger.of(context).showSnackBar(
                      const SnackBar(content: Text('ID copied to clipboard')),
                    );
                  },
                  child: Container(
                    padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
                    decoration: BoxDecoration(
                      color: Colors.white.withValues(alpha: 0.1),
                      borderRadius: BorderRadius.circular(20),
                      border: Border.all(color: Colors.white.withValues(alpha: 0.2)),
                    ),
                    child: Row(
                      mainAxisSize: MainAxisSize.min,
                      children: [
                        const Icon(Icons.copy, size: 14, color: Colors.white70),
                        const SizedBox(width: 8),
                        Text(
                          p?.eventifyId ?? _eventifyId!,
                          style: const TextStyle(
                            color: Colors.white,
                            fontSize: 13,
                            fontWeight: FontWeight.w500,
                            fontFamily: 'monospace',
                          ),
                        ),
                      ],
                    ),
                  ),
                ),
              const SizedBox(height: 16),

              // Location (District)
              Row(
                mainAxisAlignment: MainAxisAlignment.center,
                children: [
                  const Icon(Icons.location_on_outlined, color: Colors.white, size: 18),
                  const SizedBox(width: 4),
                  Text(
                    p?.district ?? _district ?? 'No district selected',
                    style: const TextStyle(color: Colors.white, fontSize: 16, fontWeight: FontWeight.w400),
                  ),
                ],
              ),
              if (_districtNextChange.isNotEmpty)
                Padding(
                  padding: const EdgeInsets.only(top: 4),
                  child: Text(
                    'Next change: $_districtNextChange',
                    style: TextStyle(color: Colors.white.withOpacity(0.7), fontSize: 12),
                  ),
                ),
              const SizedBox(height: 20),

              // Tier Badge
              Container(
                padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 8),
                decoration: BoxDecoration(
                  color: const Color(0xFFFFD1A9), // Matching "Bronze" color from screenshot
                  borderRadius: BorderRadius.circular(30),
                ),
                child: Row(
                  mainAxisSize: MainAxisSize.min,
                  children: [
                    const Icon(Icons.shield_outlined, size: 18, color: Color(0xFF92400E)),
                    const SizedBox(width: 8),
                    Text(
                      tier.toUpperCase(),
                      style: const TextStyle(
                        color: Color(0xFF92400E),
                        fontSize: 14,
                        fontWeight: FontWeight.w800,
                      ),
                    ),
                  ],
                ),
              ),
              const SizedBox(height: 24),

              // Buttons
              Padding(
                padding: const EdgeInsets.symmetric(horizontal: 20),
                child: Column(
                  children: [
                    _buildHeaderButton(
                      label: 'Edit Profile',
                      icon: Icons.person_outline,
                      onTap: _openEditDialog,
                    ),
                    const SizedBox(height: 12),
                    _buildHeaderButton(
                      label: 'Share Rank',
                      icon: Icons.share_outlined,
                      onTap: () {
                        showDialog(
                          context: context,
                          builder: (_) => Dialog(
                            backgroundColor: Colors.transparent,
                            child: ShareRankCard(
                              username: _username,
                              tier: stats?.level ?? _userTier ?? '',
                              rank: stats?.rank ?? 0,
                              ep: p?.currentEp ?? 0,
                              rewardPoints: p?.currentRp ?? 0,
                            ),
                          ),
                        );
                      },
                    ),
                  ],
                ),
              ),
            ],
          ),
        );
      },
    );
  }

  Widget _buildHeaderButton({required String label, required IconData icon, required VoidCallback onTap}) {
    return GestureDetector(
      onTap: onTap,
      child: Container(
        width: double.infinity,
        padding: const EdgeInsets.symmetric(vertical: 14),
        decoration: BoxDecoration(
          borderRadius: BorderRadius.circular(12),
          border: Border.all(color: Colors.white.withOpacity(0.3)),
          color: Colors.white.withValues(alpha: 0.05),
        ),
        child: Row(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            Icon(icon, color: Colors.white, size: 20),
            const SizedBox(width: 8),
            Text(
              label,
              style: const TextStyle(color: Colors.white, fontSize: 16, fontWeight: FontWeight.w600),
            ),
          ],
        ),
      ),
    );
  }

  Widget _buildModernStatCards(GamificationProvider gam, ThemeData theme) {
    final p = gam.profile;
    if (p == null) return const SizedBox.shrink();

    return Padding(
      padding: const EdgeInsets.symmetric(horizontal: 18, vertical: 20),
      child: Column(
        children: [
          _buildStatRowCard('Lifetime EP', '${p.lifetimeEp}', Icons.bolt, const Color(0xFFEFF6FF), const Color(0xFF3B82F6)),
          const SizedBox(height: 12),
          _buildStatRowCard('Liquid EP', '${p.currentEp}', Icons.hexagon_outlined, const Color(0xFFF0FDF4), const Color(0xFF22C55E)),
          const SizedBox(height: 12),
          _buildStatRowCard('Reward Points', '${p.currentRp}', Icons.card_giftcard, const Color(0xFFFFFBEB), const Color(0xFFF59E0B)),
        ],
      ),
    );
  }

  Widget _buildStatRowCard(String label, String value, IconData icon, Color bgColor, Color iconColor) {
    return Container(
      padding: const EdgeInsets.all(20),
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(20),
        border: Border.all(color: Colors.grey.shade100),
        boxShadow: [
          BoxShadow(color: Colors.black.withOpacity(0.02), blurRadius: 10, offset: const Offset(0, 4)),
        ],
      ),
      child: Row(
        children: [
          Container(
            padding: const EdgeInsets.all(12),
            decoration: BoxDecoration(
              color: bgColor,
              borderRadius: BorderRadius.circular(14),
            ),
            child: Icon(icon, color: iconColor, size: 24),
          ),
          const SizedBox(width: 16),
          Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Text(
                value,
                style: const TextStyle(fontSize: 22, fontWeight: FontWeight.w800, color: Color(0xFF1F2937)),
              ),
              Text(
                label,
                style: TextStyle(fontSize: 14, color: Colors.grey.shade500, fontWeight: FontWeight.w500),
              ),
            ],
          ),
        ],
      ),
    );
  }

  Widget _buildTierProgressCard(GamificationProvider gam, ThemeData theme) {
    final ep = gam.profile?.lifetimeEp ?? 0;
    final currentTier = tierFromEp(ep);
    final nextThreshold = nextTierThreshold(currentTier);
    final startEp = tierStartEp(currentTier);

    double progress = 0.0;
    String nextInfo = '';
    if (nextThreshold != null) {
      final needed = nextThreshold - ep;
      final range = nextThreshold - startEp;
      progress = ((ep - startEp) / range).clamp(0.0, 1.0);
      nextInfo = '$needed EP to ${tierLabel(ContributorTier.values[currentTier.index + 1]).toUpperCase()}';
    } else {
      progress = 1.0;
      nextInfo = 'MAX TIER REACHED';
    }

    return Container(
      margin: const EdgeInsets.symmetric(horizontal: 18),
      padding: const EdgeInsets.all(24),
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(24),
        border: Border.all(color: Colors.grey.shade100),
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            children: [
              Text(
                tierLabel(currentTier).toUpperCase(),
                style: const TextStyle(fontSize: 18, fontWeight: FontWeight.w800, color: Color(0xFF1F2937)),
              ),
              Text(
                nextInfo,
                style: TextStyle(fontSize: 13, color: Colors.grey.shade500, fontWeight: FontWeight.w600),
              ),
            ],
          ),
          const SizedBox(height: 16),
          ClipRRect(
            borderRadius: BorderRadius.circular(10),
            child: LinearProgressIndicator(
              value: progress,
              minHeight: 10,
              backgroundColor: const Color(0xFFF3F4F6),
              valueColor: const AlwaysStoppedAnimation<Color>(Color(0xFF2563EB)),
            ),
          ),
          const SizedBox(height: 12),
          Align(
            alignment: Alignment.centerRight,
            child: Text(
              '$ep EP total',
              style: TextStyle(fontSize: 13, color: Colors.grey.shade400, fontWeight: FontWeight.w500),
            ),
          ),
        ],
      ),
    );
  }

  Widget _buildContributedEventsSection(GamificationProvider gam, ThemeData theme) {
    final submissions = gam.submissions;
    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        Padding(
          padding: const EdgeInsets.fromLTRB(20, 32, 20, 16),
          child: Row(
            children: [
              const Text(
                'Contributed Events',
                style: TextStyle(fontSize: 22, fontWeight: FontWeight.w800, color: Color(0xFF1F2937)),
              ),
              const SizedBox(width: 10),
              Container(
                padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 2),
                decoration: BoxDecoration(
                  color: const Color(0xFFF3F4F6),
                  borderRadius: BorderRadius.circular(12),
                ),
                child: Text(
                  '${submissions.length}',
                  style: const TextStyle(fontSize: 14, fontWeight: FontWeight.w700, color: Color(0xFF6B7280)),
                ),
              ),
            ],
          ),
        ),
        if (submissions.isEmpty)
          const Padding(
            padding: EdgeInsets.symmetric(horizontal: 20, vertical: 10),
            child: Text('No contributions yet. Start contributing to earn EP!'),
          )
        else
          ListView.builder(
            shrinkWrap: true,
            physics: const NeverScrollableScrollPhysics(),
            padding: const EdgeInsets.symmetric(horizontal: 18),
            itemCount: submissions.length,
            itemBuilder: (ctx, i) => _buildSubmissionCard(submissions[i], theme),
          ),
        const SizedBox(height: 100),
      ],
    );
  }

  Widget _buildSubmissionCard(SubmissionModel sub, ThemeData theme) {
    Color statusColor;
    Color statusBgColor;
    String statusLabel = sub.status.toUpperCase();

    switch (sub.status.toUpperCase()) {
      case 'APPROVED':
        statusColor = const Color(0xFF059669);
        statusBgColor = const Color(0xFFD1FAE5);
        break;
      case 'REJECTED':
        statusColor = const Color(0xFFDC2626);
        statusBgColor = const Color(0xFFFEE2E2);
        break;
      default: // PENDING
        statusColor = const Color(0xFFD97706);
        statusBgColor = const Color(0xFFFEF3C7);
        statusLabel = 'PENDING';
    }

    final dateStr = '${sub.createdAt.day} ${_getMonth(sub.createdAt.month)} ${sub.createdAt.year}';

    return Container(
      margin: const EdgeInsets.only(bottom: 16),
      padding: const EdgeInsets.all(16),
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(20),
        border: Border.all(color: Colors.grey.shade100),
        boxShadow: [
          BoxShadow(color: Colors.black.withOpacity(0.01), blurRadius: 10, offset: const Offset(0, 4)),
        ],
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            children: [
              Expanded(
                child: Text(
                  sub.eventName,
                  style: const TextStyle(fontSize: 18, fontWeight: FontWeight.w800, color: Color(0xFF1F2937)),
                  maxLines: 1,
                  overflow: TextOverflow.ellipsis,
                ),
              ),
              Container(
                padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 4),
                decoration: BoxDecoration(
                  color: statusBgColor,
                  borderRadius: BorderRadius.circular(20),
                ),
                child: Row(
                  children: [
                    Icon(Icons.access_time_filled, size: 14, color: statusColor),
                    const SizedBox(width: 4),
                    Text(
                      statusLabel,
                      style: TextStyle(fontSize: 11, fontWeight: FontWeight.bold, color: statusColor),
                    ),
                  ],
                ),
              ),
            ],
          ),
          const SizedBox(height: 12),
          Row(
            children: [
              Icon(Icons.calendar_today_outlined, size: 14, color: Colors.grey.shade400),
              const SizedBox(width: 6),
              Text(dateStr, style: TextStyle(color: Colors.grey.shade500, fontSize: 13)),
              const SizedBox(width: 16),
              Icon(Icons.location_on_outlined, size: 14, color: Colors.grey.shade400),
              const SizedBox(width: 6),
              Expanded(
                child: Text(
                  sub.district ?? 'Unknown',
                  style: TextStyle(color: Colors.grey.shade500, fontSize: 13),
                  maxLines: 1,
                  overflow: TextOverflow.ellipsis,
                ),
              ),
              if (sub.status.toUpperCase() == 'APPROVED' && sub.epAwarded > 0)
                Text(
                  '+${sub.epAwarded} EP',
                  style: const TextStyle(color: Color(0xFF059669), fontWeight: FontWeight.w800, fontSize: 14),
                ),
            ],
          ),
          if (sub.category.isNotEmpty) ...[
            const SizedBox(height: 12),
            Container(
              padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 4),
              decoration: BoxDecoration(
                color: const Color(0xFFF3F4F6),
                borderRadius: BorderRadius.circular(8),
              ),
              child: Text(
                sub.category,
                style: const TextStyle(fontSize: 12, color: Color(0xFF6B7280), fontWeight: FontWeight.w500),
              ),
            ),
          ],
        ],
      ),
    );
  }

  String _getMonth(int m) {
    const months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
    return months[m - 1];
  }

  // ───────── Gradient Header ─────────


  Widget _buildGradientHeader(BuildContext context, double height) {
    return Container(
      width: double.infinity,
      height: height,
      decoration: AppDecoration.blueGradient.copyWith(
        borderRadius: const BorderRadius.only(
          bottomLeft: Radius.circular(40),
          bottomRight: Radius.circular(40),
        ),
      ),
      child: SafeArea(
        bottom: false,
        child: Padding(
          padding: const EdgeInsets.fromLTRB(20, 14, 20, 0),
          child: Row(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              // Share rank card button
              Consumer<GamificationProvider>(
                builder: (context, gam, _) => GestureDetector(
                  onTap: () {
                    showDialog(
                      context: context,
                      builder: (_) => Dialog(
                        backgroundColor: Colors.transparent,
                        child: ShareRankCard(
                          username: _username,
                          tier: gam.currentUserStats?.level ?? _userTier ?? '',
                          rank: gam.currentUserStats?.rank ?? 0,
                          ep: gam.profile?.currentEp ?? 0,
                          rewardPoints: gam.profile?.currentRp ?? 0,
                        ),
                      ),
                    );
                  },
                  child: Container(
                    width: 40,
                    height: 40,
                    decoration: BoxDecoration(
                        color: Colors.white24,
                        borderRadius: BorderRadius.circular(10)),
                    child: const Icon(Icons.share_outlined, color: Colors.white),
                  ),
                ),
              ),
              const Spacer(),
              Text(
                'Profile',
                style: Theme.of(context).textTheme.titleMedium?.copyWith(
                    color: Colors.white, fontWeight: FontWeight.w600),
              ),
              const Spacer(),
              GestureDetector(
                onTap: () => Navigator.of(context)
                    .push(MaterialPageRoute(builder: (_) => const SettingsScreen())),
                child: Container(
                  width: 40,
                  height: 40,
                  decoration: BoxDecoration(
                      color: Colors.white24,
                      borderRadius: BorderRadius.circular(10)),
                  child: const Icon(Icons.settings, color: Colors.white),
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }

  // ───────── Cover Banner ─────────

  Widget _buildCoverBanner() {
    return Stack(
      children: [
        Container(
          height: 160,
          width: double.infinity,
          decoration: BoxDecoration(
            borderRadius: BorderRadius.circular(16),
            gradient: const LinearGradient(
              colors: [
                Color(0xFFE879A8), // rose/pink tint (page bg bleed)
                Color(0xFF7DD3FC), // sky-300
                Color(0xFF67E8F9), // cyan-300
                Color(0xFF0284C7), // sky-600
              ],
              stops: [0.0, 0.35, 0.6, 1.0],
              begin: Alignment.topLeft,
              end: Alignment.bottomRight,
            ),
          ),
        ),
        // Edit pencil button (top-right, matching web)
        Positioned(
          top: 16,
          right: 16,
          child: GestureDetector(
            onTap: () => _openEditDialog(),
            child: Container(
              width: 36,
              height: 36,
              decoration: BoxDecoration(
                color: Colors.white.withValues(alpha: 0.2),
                shape: BoxShape.circle,
              ),
              child: const Icon(Icons.edit, color: Colors.white, size: 18),
            ),
          ),
        ),
      ],
    );
  }

  // ───────── Avatar overlapping banner + EXP bar ─────────

  Widget _buildAvatarSection() {
    // Use a Stack so the avatar overlaps the bottom of the banner
    return Stack(
      clipBehavior: Clip.none,
      children: [
        // Banner
        _buildCoverBanner(),
        // Avatar positioned at bottom-left, half overlapping
        Positioned(
          bottom: -36,
          left: 16,
          child: GestureDetector(
            onTap: () => _openEditDialog(),
            child: Container(
              decoration: BoxDecoration(
                shape: BoxShape.circle,
                border: Border.all(color: Colors.white, width: 3),
                boxShadow: [
                  BoxShadow(
                    color: Colors.black.withValues(alpha: 0.1),
                    blurRadius: 8,
                    offset: const Offset(0, 2),
                  ),
                ],
              ),
              child: _buildProfileAvatar(size: 80),
            ),
          ),
        ),
      ],
    );
  }

  // ───────── Animated EXP Progress Bar ─────────

  Widget _buildExpBar() {
    return Padding(
      padding: const EdgeInsets.symmetric(horizontal: 16),
      child: Row(
        children: [
          Text(
            'exp.',
            style: TextStyle(
              fontSize: 14,
              fontWeight: FontWeight.w300,
              color: Colors.grey.shade500,
            ),
          ),
          const SizedBox(width: 8),
          Expanded(
            child: AnimatedBuilder(
              animation: _animController,
              builder: (context, _) => LayoutBuilder(
                builder: (context, constraints) {
                  final fullWidth = constraints.maxWidth;
                  final filledWidth = fullWidth * _expProgress;
                  return Container(
                    height: 8,
                    decoration: BoxDecoration(
                      borderRadius: BorderRadius.circular(4),
                      color: Colors.grey.shade200,
                    ),
                    child: Align(
                      alignment: Alignment.centerLeft,
                      child: Container(
                        width: filledWidth,
                        height: 8,
                        decoration: BoxDecoration(
                          borderRadius: BorderRadius.circular(4),
                          gradient: _expGradient,
                        ),
                      ),
                    ),
                  );
                },
              ),
            ),
          ),
        ],
      ),
    );
  }

  // ───────── Stats Row (animated counters + top/bottom borders) ─────────

  Widget _buildStatsRow() {
    Widget statColumn(String value, String label) {
      return Expanded(
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            Text(
              value,
              style: const TextStyle(
                fontSize: 24,
                fontWeight: FontWeight.w600,
                color: AppConstants.textPrimary,
              ),
            ),
            const SizedBox(height: 2),
            Text(
              label,
              style: const TextStyle(
                fontSize: 12,
                fontWeight: FontWeight.w300,
                color: AppConstants.textSecondary,
              ),
            ),
          ],
        ),
      );
    }

    return Container(
      margin: const EdgeInsets.symmetric(horizontal: 8),
      padding: const EdgeInsets.symmetric(vertical: 16),
      decoration: BoxDecoration(
        border: Border(
          top: BorderSide(color: Colors.grey.shade200, width: 1),
          bottom: BorderSide(color: Colors.grey.shade200, width: 1),
        ),
      ),
      child: AnimatedBuilder(
        animation: _animController,
        builder: (context, _) => IntrinsicHeight(
          child: Row(
            children: [
              statColumn(_formatNumber(_animatedLikes), 'Likes'),
              VerticalDivider(color: Colors.grey.shade200, thickness: 1, width: 1),
              statColumn(_formatNumber(_animatedPosts), 'Posts'),
              VerticalDivider(color: Colors.grey.shade200, thickness: 1, width: 1),
              statColumn(_formatNumber(_animatedViews), 'Views'),
            ],
          ),
        ),
      ),
    );
  }

  // ───────── Social Icons Row ─────────

  Widget _buildSocialIcons() {
    final icons = [
      Icons.emoji_events_outlined,   // trophy (matching web)
      Icons.camera_alt_outlined,     // instagram camera
      Icons.flutter_dash,            // twitter-like bird
      Icons.layers_outlined,         // layers/stack
    ];

    return Row(
      mainAxisAlignment: MainAxisAlignment.center,
      children: icons.map((icon) {
        return Padding(
          padding: const EdgeInsets.symmetric(horizontal: 16),
          child: Icon(icon, size: 24, color: Colors.grey.shade500),
        );
      }).toList(),
    );
  }

  // ───────── Rainbow Bar ─────────

  Widget _buildRainbowBar() {
    return Container(
      height: 4,
      margin: const EdgeInsets.symmetric(horizontal: 24),
      decoration: BoxDecoration(
        borderRadius: BorderRadius.circular(2),
        gradient: _expGradient,
      ),
    );
  }

  // ───────── Profile Card (white, overlapping header) ─────────

  Widget _buildProfileCard(BuildContext context) {
    final theme = Theme.of(context);

    return Container(
      margin: const EdgeInsets.symmetric(horizontal: 16),
      padding: const EdgeInsets.all(16),
      decoration: BoxDecoration(
        color: theme.cardColor,
        borderRadius: BorderRadius.circular(32),
        boxShadow: [
          BoxShadow(
            color: Colors.black.withValues(alpha: 0.03),
            blurRadius: 15,
            offset: const Offset(0, 4),
          ),
        ],
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          // Cover Banner + Avatar
          _buildAvatarSection(),

          // Spacer for avatar overflow (avatar extends 36px below banner)
          const SizedBox(height: 44),

          // EXP bar
          _buildExpBar(),
          const SizedBox(height: 16),

          // Name
          Padding(
            padding: const EdgeInsets.symmetric(horizontal: 16),
            child: Text(
              _username,
              style: const TextStyle(
                fontSize: 24,
                fontWeight: FontWeight.w600,
                color: AppConstants.textPrimary,
                letterSpacing: -0.3,
              ),
            ),
          ),
          const SizedBox(height: 6),

          // AUTH-003 / PROF-001: Eventify ID badge
          if (_eventifyId != null && _eventifyId!.isNotEmpty)
            Padding(
              padding: const EdgeInsets.symmetric(horizontal: 16),
              child: GestureDetector(
                onTap: () {
                  Clipboard.setData(ClipboardData(text: _eventifyId!));
                  ScaffoldMessenger.of(context).showSnackBar(
                    const SnackBar(
                      content: Text('Eventify ID copied'),
                      duration: Duration(seconds: 2),
                    ),
                  );
                },
                child: Container(
                  margin: const EdgeInsets.only(top: 2),
                  padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 3),
                  decoration: BoxDecoration(
                    color: const Color(0xFF1E3A8A).withOpacity(0.3),
                    borderRadius: BorderRadius.circular(20),
                    border: Border.all(
                        color: const Color(0xFF3B82F6).withOpacity(0.5)),
                  ),
                  child: Row(
                    mainAxisSize: MainAxisSize.min,
                    children: [
                      const Icon(Icons.badge_outlined,
                          size: 12, color: Color(0xFF93C5FD)),
                      const SizedBox(width: 4),
                      Text(
                        _eventifyId!,
                        style: const TextStyle(
                          fontSize: 11,
                          color: Color(0xFF93C5FD),
                          fontFamily: 'monospace',
                          letterSpacing: 0.5,
                        ),
                      ),
                    ],
                  ),
                ),
              ),
            ),
          const SizedBox(height: 8),

          // Email
          Padding(
            padding: const EdgeInsets.symmetric(horizontal: 16),
            child: Text(
              _email,
              style: const TextStyle(
                fontSize: 14,
                fontWeight: FontWeight.w300,
                color: AppConstants.textSecondary,
              ),
            ),
          ),
          const SizedBox(height: 24),

          // Stats Row
          _buildStatsRow(),
          const SizedBox(height: 24),

          // Social Icons
          _buildSocialIcons(),
          const SizedBox(height: 16),
        ],
      ),
    );
  }

  // ───────── Event Sections ─────────

  Widget _buildEventSections(BuildContext context) {
    final theme = Theme.of(context);

    Widget sectionHeading(String text) {
      return Text(
        text,
        style: theme.textTheme.titleMedium
            ?.copyWith(fontWeight: FontWeight.w600, fontSize: 18),
      );
    }

    return Padding(
      padding: const EdgeInsets.fromLTRB(18, 16, 18, 0),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          // Ongoing Events
          if (_ongoingEvents.isNotEmpty) ...[
            sectionHeading('Ongoing Events'),
            const SizedBox(height: 12),
            Column(
                children:
                    _ongoingEvents.map((e) => _eventListTileFromModel(e)).toList()),
            const SizedBox(height: 24),
          ],
        ],
      ),
    );
  }

  // ═══════════════════════════════════════════════
  //  LANDSCAPE LAYOUT
  // ═══════════════════════════════════════════════

  Widget _buildLandscapeLeftPanel(BuildContext context) {
    final theme = Theme.of(context);
    return SafeArea(
      child: SingleChildScrollView(
        physics: const BouncingScrollPhysics(),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.stretch,
          children: [
            // Top bar row — title + settings
            Padding(
              padding: const EdgeInsets.fromLTRB(20, 20, 20, 0),
              child: Row(
                children: [
                  const Text(
                    'Profile',
                    style: TextStyle(color: Colors.white, fontSize: 22, fontWeight: FontWeight.w700),
                  ),
                  const Spacer(),
                  GestureDetector(
                    onTap: () => Navigator.of(context).push(MaterialPageRoute(builder: (_) => const SettingsScreen())),
                    child: Container(
                      width: 40,
                      height: 40,
                      decoration: BoxDecoration(color: Colors.white24, borderRadius: BorderRadius.circular(10)),
                      child: const Icon(Icons.settings, color: Colors.white),
                    ),
                  ),
                ],
              ),
            ),
            const SizedBox(height: 20),
            // Avatar + name section
            Padding(
              padding: const EdgeInsets.symmetric(horizontal: 20),
              child: Row(
                children: [
                  Container(
                    decoration: BoxDecoration(
                      shape: BoxShape.circle,
                      border: Border.all(color: Colors.white, width: 3),
                      boxShadow: [BoxShadow(color: Colors.black.withOpacity(0.15), blurRadius: 8, offset: const Offset(0, 2))],
                    ),
                    child: _buildProfileAvatar(size: 64),
                  ),
                  const SizedBox(width: 14),
                  Expanded(
                    child: Column(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: [
                        Text(
                          _username.isNotEmpty ? _username : 'Guest User',
                          style: const TextStyle(color: Colors.white, fontSize: 17, fontWeight: FontWeight.w700),
                          maxLines: 1,
                          overflow: TextOverflow.ellipsis,
                        ),
                        const SizedBox(height: 2),
                        Text(
                          _email,
                          style: const TextStyle(color: Colors.white70, fontSize: 13),
                          maxLines: 1,
                          overflow: TextOverflow.ellipsis,
                        ),
                      ],
                    ),
                  ),
                ],
              ),
            ),
            const SizedBox(height: 20),
            // EXP Bar
            Padding(
              padding: const EdgeInsets.symmetric(horizontal: 20),
              child: _buildExpBar(),
            ),
            const SizedBox(height: 20),
            // Stats row
            Padding(
              padding: const EdgeInsets.symmetric(horizontal: 20),
              child: Container(
                decoration: BoxDecoration(
                  color: Colors.white.withOpacity(0.1),
                  borderRadius: BorderRadius.circular(14),
                ),
                padding: const EdgeInsets.symmetric(vertical: 16),
                child: _buildLandscapeStats(context, textColor: Colors.white),
              ),
            ),
            const SizedBox(height: 20),
            // Edit profile button
            Padding(
              padding: const EdgeInsets.symmetric(horizontal: 20),
              child: OutlinedButton.icon(
                onPressed: _openEditDialog,
                icon: const Icon(Icons.edit, size: 16, color: Colors.white),
                label: const Text('Edit Profile', style: TextStyle(color: Colors.white)),
                style: OutlinedButton.styleFrom(
                  side: const BorderSide(color: Colors.white38),
                  shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(10)),
                  padding: const EdgeInsets.symmetric(vertical: 12),
                ),
              ),
            ),
            const SizedBox(height: 24),
          ],
        ),
      ),
    );
  }

  Widget _buildLandscapeStats(BuildContext context, {Color? textColor}) {
    final color = textColor ?? Theme.of(context).textTheme.bodyLarge?.color;
    final hintColor = textColor?.withOpacity(0.6) ?? Theme.of(context).hintColor;

    String fmt(int v) => v >= 1000 ? '${(v / 1000).toStringAsFixed(1)}K' : '$v';

    return AnimatedBuilder(
      animation: _animController,
      builder: (_, __) => Row(
        mainAxisAlignment: MainAxisAlignment.spaceEvenly,
        children: [
          _landscapeStatItem(fmt(_animatedLikes), 'Likes', color, hintColor),
          _landscapeStatDivider(),
          _landscapeStatItem(fmt(_animatedPosts), 'Posts', color, hintColor),
          _landscapeStatDivider(),
          _landscapeStatItem(fmt(_animatedViews), 'Views', color, hintColor),
        ],
      ),
    );
  }

  Widget _landscapeStatItem(String value, String label, Color? valueColor, Color? labelColor) {
    return Column(
      mainAxisSize: MainAxisSize.min,
      children: [
        Text(value, style: TextStyle(fontSize: 20, fontWeight: FontWeight.w700, color: valueColor)),
        const SizedBox(height: 2),
        Text(label, style: TextStyle(fontSize: 12, color: labelColor, fontWeight: FontWeight.w400)),
      ],
    );
  }

  Widget _landscapeStatDivider() => Container(width: 1, height: 36, color: Colors.white24);

  Widget _buildLandscapeRightPanel(BuildContext context) {
    final theme = Theme.of(context);

    Widget _eventList(List<EventModel> events, {bool faded = false}) {
      if (_loadingEvents) {
        return const Center(child: CircularProgressIndicator());
      }
      if (events.isEmpty) {
        return Center(
          child: Padding(
            padding: const EdgeInsets.all(32),
            child: Text('No events', style: theme.textTheme.bodyMedium?.copyWith(color: theme.hintColor)),
          ),
        );
      }
      return ListView.builder(
        physics: const BouncingScrollPhysics(),
        padding: const EdgeInsets.fromLTRB(18, 8, 18, 32),
        itemCount: events.length,
        itemBuilder: (ctx, i) => _eventListTileFromModel(events[i], faded: faded),
      );
    }

    return SafeArea(
      child: DefaultTabController(
        length: 1,
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.stretch,
          children: [
            const LandscapeSectionHeader(title: 'My Events'),
            // Tab bar
            Padding(
              padding: const EdgeInsets.fromLTRB(20, 0, 20, 8),
              child: Container(
                decoration: BoxDecoration(
                  color: theme.dividerColor.withOpacity(0.5),
                  borderRadius: BorderRadius.circular(10),
                ),
                child: TabBar(
                  labelColor: Colors.white,
                  unselectedLabelColor: theme.hintColor,
                  indicator: BoxDecoration(
                    color: theme.colorScheme.primary,
                    borderRadius: BorderRadius.circular(10),
                  ),
                  labelStyle: const TextStyle(fontWeight: FontWeight.w600, fontSize: 13),
                  tabs: const [
                    Tab(text: 'Ongoing'),
                  ],
                ),
              ),
            ),
            Expanded(
              child: TabBarView(
                children: [
                  _eventList(_ongoingEvents),
                ],
              ),
            ),
          ],
        ),
      ),
    );
  }

  // ═══════════════════════════════════════════════
  //  DESKTOP LAYOUT (Figma: full-width banner + 3-col grids)
  // ═══════════════════════════════════════════════

  Widget _buildDesktopLayout(BuildContext context, ThemeData theme) {
    return Scaffold(
      backgroundColor: theme.scaffoldBackgroundColor,
      body: SingleChildScrollView(
        physics: const BouncingScrollPhysics(),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            // Full-width profile header + card (reuse existing widgets)
            Stack(
              children: [
                _buildGradientHeader(context, 200),
                Padding(
                  padding: const EdgeInsets.only(top: 130),
                  child: _buildProfileCard(context),
                ),
              ],
            ),
            const SizedBox(height: 24),

            // Ongoing Events (only if non-empty)
            if (_ongoingEvents.isNotEmpty)
              _buildDesktopEventSection(
                context,
                title: 'Ongoing Events',
                events: _ongoingEvents,
                faded: false,
              ),

            const SizedBox(height: 32),
          ],
        ),
      ),
    );
  }

  /// Section heading row ("Title" + "View All >") followed by a 3-column grid.
  Widget _buildDesktopEventSection(
    BuildContext context, {
    required String title,
    required List<EventModel> events,
    bool faded = false,
    String? emptyMessage,
  }) {
    final theme = Theme.of(context);

    return Padding(
      padding: const EdgeInsets.symmetric(horizontal: 24),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          // Heading row
          Row(
            children: [
              Text(
                title,
                style: theme.textTheme.titleMedium?.copyWith(
                  fontWeight: FontWeight.w700,
                  fontSize: 20,
                ),
              ),
              const Spacer(),
              if (events.isNotEmpty)
                TextButton(
                  onPressed: () {
                    // View all — no-op for now; could navigate to a full list
                  },
                  child: Text(
                    'View All >',
                    style: TextStyle(
                      color: theme.colorScheme.primary,
                      fontWeight: FontWeight.w600,
                      fontSize: 14,
                    ),
                  ),
                ),
            ],
          ),
          const SizedBox(height: 12),

          // Content
          if (_loadingEvents)
            const Center(child: CircularProgressIndicator())
          else if (events.isEmpty)
            Padding(
              padding: const EdgeInsets.symmetric(vertical: 16),
              child: Text(
                emptyMessage ?? 'No events',
                style: theme.textTheme.bodyMedium?.copyWith(color: theme.hintColor),
              ),
            )
          else
            GridView.builder(
              shrinkWrap: true,
              physics: const NeverScrollableScrollPhysics(),
              gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
                crossAxisCount: 3,
                crossAxisSpacing: 16,
                mainAxisSpacing: 16,
                childAspectRatio: 0.82,
              ),
              itemCount: events.length,
              itemBuilder: (ctx, i) =>
                  _buildDesktopEventGridCard(events[i], faded: faded),
            ),

          const SizedBox(height: 24),
        ],
      ),
    );
  }

  /// A single event card for the desktop grid: image on top, title, date (blue dot), venue (green dot).
  Widget _buildDesktopEventGridCard(EventModel ev, {bool faded = false}) {
    final theme = Theme.of(context);
    final title = ev.title ?? ev.name ?? '';
    final dateLabel =
        (ev.startDate != null && ev.endDate != null && ev.startDate == ev.endDate)
            ? ev.startDate!
            : ((ev.startDate != null && ev.endDate != null)
                ? '${ev.startDate} - ${ev.endDate}'
                : (ev.startDate ?? ''));
    final location = ev.place ?? '';
    final imageUrl = (ev.thumbImg != null && ev.thumbImg!.isNotEmpty)
        ? ev.thumbImg!
        : (ev.images.isNotEmpty ? ev.images.first.image : null);

    final titleColor = faded ? theme.hintColor : (theme.textTheme.bodyLarge?.color);
    final subtitleColor = faded
        ? theme.hintColor.withValues(alpha: 0.7)
        : theme.hintColor;

    return GestureDetector(
      onTap: () {
        if (ev.id != null) {
          Navigator.of(context).push(
            MaterialPageRoute(builder: (_) => LearnMoreScreen(eventId: ev.id, initialEvent: ev)),
          );
        }
      },
      child: Container(
        decoration: BoxDecoration(
          color: theme.cardColor,
          borderRadius: BorderRadius.circular(14),
          boxShadow: [
            BoxShadow(
              color: Colors.black.withValues(alpha: 0.06),
              blurRadius: 10,
              offset: const Offset(0, 3),
            ),
          ],
        ),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            // Image
            Expanded(
              flex: 3,
              child: ClipRRect(
                borderRadius: const BorderRadius.vertical(top: Radius.circular(14)),
                child: _buildCardImage(imageUrl, theme),
              ),
            ),
            // Text content
            Expanded(
              flex: 2,
              child: Padding(
                padding: const EdgeInsets.fromLTRB(12, 10, 12, 10),
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    // Title
                    Text(
                      title,
                      style: theme.textTheme.titleSmall?.copyWith(
                        fontWeight: FontWeight.w700,
                        color: titleColor,
                      ),
                      maxLines: 2,
                      overflow: TextOverflow.ellipsis,
                    ),
                    const Spacer(),
                    // Date row with blue dot
                    Row(
                      children: [
                        Container(
                          width: 8,
                          height: 8,
                          decoration: const BoxDecoration(
                            color: Color(0xFF3B82F6),
                            shape: BoxShape.circle,
                          ),
                        ),
                        const SizedBox(width: 8),
                        Expanded(
                          child: Text(
                            dateLabel,
                            style: theme.textTheme.bodySmall?.copyWith(color: subtitleColor),
                            maxLines: 1,
                            overflow: TextOverflow.ellipsis,
                          ),
                        ),
                      ],
                    ),
                    const SizedBox(height: 4),
                    // Venue row with green dot
                    Row(
                      children: [
                        Container(
                          width: 8,
                          height: 8,
                          decoration: const BoxDecoration(
                            color: Color(0xFF22C55E),
                            shape: BoxShape.circle,
                          ),
                        ),
                        const SizedBox(width: 8),
                        Expanded(
                          child: Text(
                            location,
                            style: theme.textTheme.bodySmall?.copyWith(color: subtitleColor),
                            maxLines: 1,
                            overflow: TextOverflow.ellipsis,
                          ),
                        ),
                      ],
                    ),
                  ],
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }

  /// Helper to build the image widget for a desktop grid card.
  Widget _buildCardImage(String? imageUrl, ThemeData theme) {
    if (imageUrl != null && imageUrl.trim().isNotEmpty) {
      if (imageUrl.startsWith('http')) {
        return CachedNetworkImage(
          imageUrl: imageUrl,
          memCacheWidth: 400,
          memCacheHeight: 400,
          width: double.infinity,
          height: double.infinity,
          fit: BoxFit.cover,
          placeholder: (_, __) => Container(color: theme.dividerColor),
          errorWidget: (_, __, ___) => Container(
            color: theme.dividerColor,
            child: Icon(Icons.event, size: 32, color: theme.hintColor),
          ),
        );
      }
      if (!kIsWeb) {
        final path = imageUrl;
        if (path.startsWith('/') || path.contains(Platform.pathSeparator)) {
          final file = File(path);
          if (file.existsSync()) {
            return Image.file(
              file,
              width: double.infinity,
              height: double.infinity,
              fit: BoxFit.cover,
              errorBuilder: (_, __, ___) => Container(
                color: theme.dividerColor,
                child: Icon(Icons.event, size: 32, color: theme.hintColor),
              ),
            );
          }
        }
      }
      return Image.asset(
        imageUrl,
        width: double.infinity,
        height: double.infinity,
        fit: BoxFit.cover,
        errorBuilder: (_, __, ___) => Container(
          color: theme.dividerColor,
          child: Icon(Icons.event, size: 32, color: theme.hintColor),
        ),
      );
    }
    return Container(
      color: theme.dividerColor,
      child: Icon(Icons.event, size: 32, color: theme.hintColor),
    );
  }

  // ═══════════════════════════════════════════════
  //  BUILD
  // ═══════════════════════════════════════════════

  @override
  Widget build(BuildContext context) {
    final theme = Theme.of(context);
    final width = MediaQuery.of(context).size.width;

    // ── DESKTOP / LANDSCAPE layout ─────────────────────────────────────────
    if (width >= AppConstants.desktopBreakpoint) {
      return _buildDesktopLayout(context, theme);
    }

    // ── MOBILE layout ─────────────────────────────────────────────────────
    return Scaffold(
      backgroundColor: const Color(0xFFF9FAFB), // Softer light bg
      body: Consumer<GamificationProvider>(
        builder: (context, gam, _) {
          return CustomScrollView(
            physics: const BouncingScrollPhysics(),
            slivers: [
              SliverToBoxAdapter(
                child: _buildModernHeader(context, theme),
              ),
              SliverToBoxAdapter(
                child: _buildModernStatCards(gam, theme),
              ),
              SliverToBoxAdapter(
                child: _buildTierProgressCard(gam, theme),
              ),
              SliverToBoxAdapter(
                child: _buildContributedEventsSection(gam, theme),
              ),
            ],
          );
        },
      ),
    );
  }

  // ─────────────────────────────────────────────────────────────────────────
  // PROF-003: Gamification 3-card row (Lifetime EP / Liquid EP / RP)
  // ─────────────────────────────────────────────────────────────────────────
  Widget _buildGamificationCards(ThemeData theme) {
    return Consumer<GamificationProvider>(
      builder: (context, gp, _) {
        if (gp.isLoading && gp.profile == null) {
          return const ProfileStatsSkeleton();
        }
        if (gp.profile == null) return const SizedBox.shrink();

        final p = gp.profile!;
        return Padding(
          padding: const EdgeInsets.fromLTRB(18, 8, 18, 8),
          child: Row(
            children: [
              _gamStatCard('Lifetime EP', '${p.lifetimeEp}', Icons.star, const Color(0xFFF59E0B), theme),
              const SizedBox(width: 10),
              // GAM-003 + GAM-004: Liquid EP with cycle countdown and progress bar
              Expanded(
                child: Container(
                  padding: const EdgeInsets.symmetric(vertical: 12, horizontal: 8),
                  decoration: BoxDecoration(
                    color: const Color(0xFF3B82F6).withOpacity(0.08),
                    borderRadius: BorderRadius.circular(12),
                    border: Border.all(color: const Color(0xFF3B82F6).withOpacity(0.2)),
                  ),
                  child: Column(
                    children: [
                      const Icon(Icons.bolt, color: Color(0xFF3B82F6), size: 22),
                      const SizedBox(height: 4),
                      Text(
                        '${p.currentEp}',
                        style: TextStyle(fontWeight: FontWeight.w800, fontSize: 16, color: theme.textTheme.bodyLarge?.color),
                      ),
                      const SizedBox(height: 2),
                      Text('Liquid EP', style: TextStyle(color: theme.hintColor, fontSize: 10), textAlign: TextAlign.center),
                      if (gp.currentUserStats?.rewardCycleDays != null) ...[
                        const SizedBox(height: 4),
                        Text(
                          'Converts in ${gp.currentUserStats!.rewardCycleDays}d',
                          style: const TextStyle(fontSize: 11, color: Color(0xFF94A3B8)),
                          textAlign: TextAlign.center,
                        ),
                        const SizedBox(height: 6),
                        ClipRRect(
                          borderRadius: BorderRadius.circular(4),
                          child: Builder(
                            builder: (_) {
                              final days = gp.currentUserStats?.rewardCycleDays ?? 30;
                              final elapsed = (30 - days).clamp(0, 30);
                              final ratio = elapsed / 30;
                              return LinearProgressIndicator(
                                value: ratio,
                                minHeight: 4,
                                backgroundColor: Colors.white12,
                                valueColor: AlwaysStoppedAnimation<Color>(
                                  ratio > 0.7 ? const Color(0xFFFBBF24) : const Color(0xFF3B82F6),
                                ),
                              );
                            },
                          ),
                        ),
                      ],
                    ],
                  ),
                ),
              ),
              const SizedBox(width: 10),
              _gamStatCard('Reward Pts', '${p.currentRp}', Icons.redeem, const Color(0xFF10B981), theme),
            ],
          ),
        );
      },
    );
  }

  Widget _gamStatCard(String label, String value, IconData icon, Color color, ThemeData theme) {
    return Expanded(
      child: Container(
        padding: const EdgeInsets.symmetric(vertical: 12, horizontal: 8),
        decoration: BoxDecoration(
          color: color.withOpacity(0.08),
          borderRadius: BorderRadius.circular(12),
          border: Border.all(color: color.withOpacity(0.2)),
        ),
        child: Column(
          children: [
            Icon(icon, color: color, size: 22),
            const SizedBox(height: 4),
            Text(value, style: TextStyle(fontWeight: FontWeight.w800, fontSize: 16, color: theme.textTheme.bodyLarge?.color)),
            const SizedBox(height: 2),
            Text(label, style: TextStyle(color: theme.hintColor, fontSize: 10), textAlign: TextAlign.center),
          ],
        ),
      ),
    );
  }
}