New

README.md

@@ -56,7 +56,7 @@ dart run build_runner build --delete-conflicting-outputs
 
 # Run the app
 flutter run
-```
+```bash
 
 ### Platforms
 
@@ -66,7 +66,7 @@ flutter run
 
 ## Project Structure
 
-```
+```bash
 lib/
 ├── main.dart                    # App entry point
 ├── theme/
@@ -88,7 +88,7 @@ lib/
     ├── scripture_card.dart      # Phase-colored verse display
     ├── quick_log_buttons.dart   # Quick action buttons
     └── tip_card.dart            # Contextual tips
-```
+```bash
 
 ## Color Palettes
 

lib/main.dart

@@ -1,13 +1,13 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:hive_flutter/hive_flutter.dart';
-import 'package:google_fonts/google_fonts.dart';
 
 import 'models/scripture.dart';
 import 'theme/app_theme.dart';
 import 'screens/splash_screen.dart';
 import 'models/user_profile.dart';
 import 'models/cycle_entry.dart';
+import 'providers/user_provider.dart';
 
 void main() async {
   WidgetsFlutterBinding.ensureInitialized();
@@ -26,7 +26,8 @@ void main() async {
   Hive.registerAdapter(CyclePhaseAdapter());
   Hive.registerAdapter(UserRoleAdapter());
   Hive.registerAdapter(BibleTranslationAdapter());
-  Hive.registerAdapter(ScriptureAdapter()); // Register Scripture adapter
+  Hive.registerAdapter(ScriptureAdapter());
+  Hive.registerAdapter(AppThemeModeAdapter()); // Register new adapter
 
   // Open boxes and load scriptures in parallel
   await Future.wait([
@@ -38,17 +39,52 @@ void main() async {
   runApp(const ProviderScope(child: ChristianPeriodTrackerApp()));
 }
 
-class ChristianPeriodTrackerApp extends StatelessWidget {
+// Helper to convert hex string to Color
+Color _colorFromHex(String hexColor) {
+  try {
+    final hexCode = hexColor.replaceAll('0x', '');
+    return Color(int.parse('FF$hexCode', radix: 16));
+  } catch (e) {
+    return AppColors.sageGreen; // Fallback to default
+  }
+}
+
+class ChristianPeriodTrackerApp extends ConsumerWidget {
   const ChristianPeriodTrackerApp({super.key});
 
   @override
-  Widget build(BuildContext context) {
+  Widget build(BuildContext context, WidgetRef ref) {
+    final userProfile = ref.watch(userProfileProvider);
+
+    final ThemeMode themeMode;
+    final Color accentColor;
+
+    if (userProfile != null) {
+      accentColor = _colorFromHex(userProfile.accentColor);
+      switch (userProfile.themeMode) {
+        case AppThemeMode.light:
+          themeMode = ThemeMode.light;
+          break;
+        case AppThemeMode.dark:
+          themeMode = ThemeMode.dark;
+          break;
+        case AppThemeMode.system:
+        default:
+          themeMode = ThemeMode.system;
+          break;
+      }
+    } else {
+      // Default theme for initial load or if profile is null
+      themeMode = ThemeMode.system;
+      accentColor = AppColors.sageGreen;
+    }
+
     return MaterialApp(
       title: 'Christian Period Tracker',
       debugShowCheckedModeBanner: false,
-      theme: AppTheme.lightTheme,
+      theme: AppTheme.getLightTheme(accentColor),
-      darkTheme: AppTheme.darkTheme,
+      darkTheme: AppTheme.getDarkTheme(accentColor),
-      themeMode: ThemeMode.system,
+      themeMode: themeMode,
       home: const SplashScreen(),
     );
   }

lib/models/user_profile.dart

@@ -46,6 +46,16 @@ enum BibleTranslation {
   msg,
 }
 
+@HiveType(typeId: 11)
+enum AppThemeMode {
+  @HiveField(0)
+  system,
+  @HiveField(1)
+  light,
+  @HiveField(2)
+  dark,
+}
+
 /// User profile model
 @HiveType(typeId: 2)
 class UserProfile extends HiveObject {
@@ -103,6 +113,31 @@ class UserProfile extends HiveObject {
   @HiveField(18, defaultValue: false)
   bool isDataShared;
 
+  @HiveField(19, defaultValue: AppThemeMode.system)
+  AppThemeMode themeMode;
+
+  @HiveField(20, defaultValue: '0xFFA8C5A8')
+  String accentColor;
+
+  // Sharing settings
+  @HiveField(21, defaultValue: true)
+  bool shareMoods;
+
+  @HiveField(22, defaultValue: true)
+  bool shareSymptoms;
+
+  @HiveField(23, defaultValue: true)
+  bool shareCravings;
+
+  @HiveField(24, defaultValue: true)
+  bool shareEnergyLevels;
+
+  @HiveField(25, defaultValue: true)
+  bool shareSleep;
+
+  @HiveField(26, defaultValue: true)
+  bool shareIntimacy;
+
   UserProfile({
     required this.id,
     required this.name,
@@ -122,6 +157,14 @@ class UserProfile extends HiveObject {
     this.bibleTranslation = BibleTranslation.esv,
     this.favoriteFoods,
     this.isDataShared = false,
+    this.themeMode = AppThemeMode.system,
+    this.accentColor = '0xFFA8C5A8',
+    this.shareMoods = true,
+    this.shareSymptoms = true,
+    this.shareCravings = true,
+    this.shareEnergyLevels = true,
+    this.shareSleep = true,
+    this.shareIntimacy = true,
   });
 
   /// Check if user is married
@@ -166,6 +209,14 @@ class UserProfile extends HiveObject {
     BibleTranslation? bibleTranslation,
     List<String>? favoriteFoods,
     bool? isDataShared,
+    AppThemeMode? themeMode,
+    String? accentColor,
+    bool? shareMoods,
+    bool? shareSymptoms,
+    bool? shareCravings,
+    bool? shareEnergyLevels,
+    bool? shareSleep,
+    bool? shareIntimacy,
   }) {
     return UserProfile(
       id: id ?? this.id,
@@ -187,6 +238,14 @@ class UserProfile extends HiveObject {
       bibleTranslation: bibleTranslation ?? this.bibleTranslation,
       favoriteFoods: favoriteFoods ?? this.favoriteFoods,
       isDataShared: isDataShared ?? this.isDataShared,
+      themeMode: themeMode ?? this.themeMode,
+      accentColor: accentColor ?? this.accentColor,
+      shareMoods: shareMoods ?? this.shareMoods,
+      shareSymptoms: shareSymptoms ?? this.shareSymptoms,
+      shareCravings: shareCravings ?? this.shareCravings,
+      shareEnergyLevels: shareEnergyLevels ?? this.shareEnergyLevels,
+      shareSleep: shareSleep ?? this.shareSleep,
+      shareIntimacy: shareIntimacy ?? this.shareIntimacy,
     );
   }
 }

lib/models/user_profile.g.dart

@@ -37,13 +37,22 @@ class UserProfileAdapter extends TypeAdapter<UserProfile> {
           : fields[16] as BibleTranslation,
       favoriteFoods: (fields[17] as List?)?.cast<String>(),
       isDataShared: fields[18] == null ? false : fields[18] as bool,
+      themeMode:
+          fields[19] == null ? AppThemeMode.system : fields[19] as AppThemeMode,
+      accentColor: fields[20] == null ? '0xFFA8C5A8' : fields[20] as String,
+      shareMoods: fields[21] == null ? true : fields[21] as bool,
+      shareSymptoms: fields[22] == null ? true : fields[22] as bool,
+      shareCravings: fields[23] == null ? true : fields[23] as bool,
+      shareEnergyLevels: fields[24] == null ? true : fields[24] as bool,
+      shareSleep: fields[25] == null ? true : fields[25] as bool,
+      shareIntimacy: fields[26] == null ? true : fields[26] as bool,
     );
   }
 
   @override
   void write(BinaryWriter writer, UserProfile obj) {
     writer
-      ..writeByte(18)
+      ..writeByte(26)
       ..writeByte(0)
       ..write(obj.id)
       ..writeByte(1)
@@ -79,7 +88,23 @@ class UserProfileAdapter extends TypeAdapter<UserProfile> {
       ..writeByte(17)
       ..write(obj.favoriteFoods)
       ..writeByte(18)
-      ..write(obj.isDataShared);
+      ..write(obj.isDataShared)
+      ..writeByte(19)
+      ..write(obj.themeMode)
+      ..writeByte(20)
+      ..write(obj.accentColor)
+      ..writeByte(21)
+      ..write(obj.shareMoods)
+      ..writeByte(22)
+      ..write(obj.shareSymptoms)
+      ..writeByte(23)
+      ..write(obj.shareCravings)
+      ..writeByte(24)
+      ..write(obj.shareEnergyLevels)
+      ..writeByte(25)
+      ..write(obj.shareSleep)
+      ..writeByte(26)
+      ..write(obj.shareIntimacy);
   }
 
   @override
@@ -245,6 +270,50 @@ class BibleTranslationAdapter extends TypeAdapter<BibleTranslation> {
           typeId == other.typeId;
 }
 
+class AppThemeModeAdapter extends TypeAdapter<AppThemeMode> {
+  @override
+  final int typeId = 11;
+
+  @override
+  AppThemeMode read(BinaryReader reader) {
+    switch (reader.readByte()) {
+      case 0:
+        return AppThemeMode.system;
+      case 1:
+        return AppThemeMode.light;
+      case 2:
+        return AppThemeMode.dark;
+      default:
+        return AppThemeMode.system;
+    }
+  }
+
+  @override
+  void write(BinaryWriter writer, AppThemeMode obj) {
+    switch (obj) {
+      case AppThemeMode.system:
+        writer.writeByte(0);
+        break;
+      case AppThemeMode.light:
+        writer.writeByte(1);
+        break;
+      case AppThemeMode.dark:
+        writer.writeByte(2);
+        break;
+    }
+  }
+
+  @override
+  int get hashCode => typeId.hashCode;
+
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      other is AppThemeModeAdapter &&
+          runtimeType == other.runtimeType &&
+          typeId == other.typeId;
+}
+
 class UserRoleAdapter extends TypeAdapter<UserRole> {
   @override
   final int typeId = 8;

lib/providers/user_provider.dart

@@ -26,12 +26,29 @@ class UserProfileNotifier extends StateNotifier<UserProfile?> {
     state = profile;
   }
 
+  Future<void> updateThemeMode(AppThemeMode themeMode) async {
+    if (state != null) {
+      await updateProfile(state!.copyWith(themeMode: themeMode));
+    }
+  }
+
+  Future<void> updateAccentColor(String accentColor) async {
+    if (state != null) {
+      await updateProfile(state!.copyWith(accentColor: accentColor));
+    }
+  }
+
+  Future<void> updateRelationshipStatus(RelationshipStatus relationshipStatus) async {
+    if (state != null) {
+      await updateProfile(state!.copyWith(relationshipStatus: relationshipStatus));
+    }
+  }
+
   Future<void> clearProfile() async {
     final box = Hive.box<UserProfile>('user_profile');
     await box.clear();
     state = null;
   }
-}
 
 /// Provider for cycle entries
 final cycleEntriesProvider = StateNotifierProvider<CycleEntriesNotifier, List<CycleEntry>>((ref) {
@@ -67,6 +84,18 @@ class CycleEntriesNotifier extends StateNotifier<List<CycleEntry>> {
     _loadEntries();
   }
 
+  Future<void> deleteEntriesForMonth(int year, int month) async {
+    final box = Hive.box<CycleEntry>('cycle_entries');
+    final keysToDelete = <dynamic>[];
+    for (var entry in box.values) {
+      if (entry.date.year == year && entry.date.month == month) {
+        keysToDelete.add(entry.key);
+      }
+    }
+    await box.deleteAll(keysToDelete);
+    _loadEntries();
+  }
+
   Future<void> clearEntries() async {
     final box = Hive.box<CycleEntry>('cycle_entries');
     await box.clear();

lib/screens/home/home_screen.dart

@@ -8,6 +8,8 @@ import '../../models/scripture.dart';
 import '../calendar/calendar_screen.dart';
 import '../log/log_screen.dart';
 import '../devotional/devotional_screen.dart';
+import '../settings/appearance_screen.dart';
+import '../settings/cycle_settings_screen.dart';
 import '../../widgets/tip_card.dart';
 import '../../widgets/cycle_ring.dart';
 import '../../widgets/scripture_card.dart';
@@ -203,7 +205,7 @@ class _DashboardTabState extends ConsumerState<_DashboardTab> {
                 icon: const Icon(Icons.shuffle),
                 label: const Text('Random Verse'),
                 style: TextButton.styleFrom(
-                  foregroundColor: AppColors.sageGreen,
+                  foregroundColor: Theme.of(context).colorScheme.primary,
                 ),
               ),
             ),
@@ -219,7 +221,7 @@ class _DashboardTabState extends ConsumerState<_DashboardTab> {
             const QuickLogButtons(),
             const SizedBox(height: 24),
             if (role == UserRole.wife)
-              TipCard(phase: phase, isMarried: isMarried),
+              _buildWifeTipsSection(context),
             const SizedBox(height: 20),
           ],
         ),
@@ -383,8 +385,8 @@ class _SettingsTab extends ConsumerWidget {
                     decoration: BoxDecoration(
                       gradient: LinearGradient(
                         colors: [
-                          AppColors.blushPink,
+                          Theme.of(context).colorScheme.primary.withOpacity(0.7),
-                          AppColors.rose.withOpacity(0.7)
+                          Theme.of(context).colorScheme.secondary.withOpacity(0.7)
                         ],
                         begin: Alignment.topLeft,
                         end: Alignment.bottomRight,
@@ -440,7 +442,13 @@ class _SettingsTab extends ConsumerWidget {
                 'Bible Version ($translationLabel)',
                 onTap: () => BibleUtils.showTranslationPicker(context, ref),
               ),
-              _buildSettingsTile(context, Icons.palette_outlined, 'Appearance'),
+              _buildSettingsTile(context, Icons.palette_outlined, 'Appearance',
+                  onTap: () {
+                Navigator.push(
+                    context,
+                    MaterialPageRoute(
+                        builder: (context) => const AppearanceScreen()));
+              }),
               _buildSettingsTile(
                 context,
                 Icons.favorite_border,
@@ -452,15 +460,32 @@ class _SettingsTab extends ConsumerWidget {
                 context,
                 Icons.share_outlined,
                 'Share with Husband',
-                onTap: () => _showShareDialog(context, ref),
+                onTap: () {
+                  Navigator.push(
+                      context,
+                      MaterialPageRoute(
+                          builder: (context) => const SharingSettingsScreen()));
+                },
               ),
             ]),
             const SizedBox(height: 16),
             _buildSettingsGroup(context, 'Cycle', [
               _buildSettingsTile(
-                  context, Icons.calendar_today_outlined, 'Cycle Settings'),
+                  context, Icons.calendar_today_outlined, 'Cycle Settings',
+                  onTap: () {
+                Navigator.push(
+                    context,
+                    MaterialPageRoute(
+                        builder: (context) => const CycleSettingsScreen()));
+              }),
               _buildSettingsTile(
-                  context, Icons.trending_up_outlined, 'Cycle History'),
+                  context, Icons.trending_up_outlined, 'Cycle History',
+                  onTap: () {
+                Navigator.push(
+                    context,
+                    MaterialPageRoute(
+                        builder: (context) => const CycleHistoryScreen()));
+              }),
               _buildSettingsTile(
                   context, Icons.download_outlined, 'Export Data'),
             ]),
@@ -571,7 +596,7 @@ class _SettingsTab extends ConsumerWidget {
       builder: (context) => AlertDialog(
         title: Row(
           children: [
-            const Icon(Icons.share_outlined, color: AppColors.sageGreen),
+            Icon(Icons.share_outlined, color: Theme.of(context).colorScheme.primary),
             const SizedBox(width: 8),
             const Text('Share with Husband'),
           ],
@@ -587,9 +612,9 @@ class _SettingsTab extends ConsumerWidget {
             Container(
               padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 16),
               decoration: BoxDecoration(
-                color: AppColors.sageGreen.withOpacity(0.1),
+                color: Theme.of(context).colorScheme.primary.withOpacity(0.1),
                 borderRadius: BorderRadius.circular(12),
-                border: Border.all(color: AppColors.sageGreen.withOpacity(0.3)),
+                border: Border.all(color: Theme.of(context).colorScheme.primary.withOpacity(0.3)),
               ),
               child: SelectableText(
                 pairingCode,
@@ -597,7 +622,7 @@ class _SettingsTab extends ConsumerWidget {
                   fontSize: 32,
                   fontWeight: FontWeight.bold,
                   letterSpacing: 4,
-                  color: AppColors.sageGreen,
+                  color: Theme.of(context).colorScheme.primary,
                 ),
               ),
             ),
@@ -613,7 +638,7 @@ class _SettingsTab extends ConsumerWidget {
           ElevatedButton(
             onPressed: () => Navigator.pop(context),
             style: ElevatedButton.styleFrom(
-              backgroundColor: AppColors.sageGreen,
+              backgroundColor: Theme.of(context).colorScheme.primary,
               foregroundColor: Colors.white,
             ),
             child: const Text('Done'),
@@ -623,3 +648,54 @@ class _SettingsTab extends ConsumerWidget {
     );
   }
 }
+
+Widget _buildWifeTipsSection(BuildContext context) {
+  return Column(
+    crossAxisAlignment: CrossAxisAlignment.start,
+    children: [
+      Text(
+        'Health Tips',
+        style: Theme.of(context).textTheme.titleLarge?.copyWith(
+              fontSize: 18,
+              fontWeight: FontWeight.w600,
+            ),
+      ),
+      const SizedBox(height: 12),
+      Card(
+        elevation: 2,
+        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
+        child: Padding(
+          padding: const EdgeInsets.all(16.0),
+          child: Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              _buildTipCard(
+                context,
+                title: 'Regular Check-ups',
+                content:
+                    'Schedule regular gynecological check-ups to monitor your reproductive health.',
+                icon: Icons.medical_services,
+              ),
+              const SizedBox(height: 16),
+              _buildTipCard(
+                context,
+                title: 'Healthy Lifestyle',
+                content:
+                    'Maintain a balanced diet, exercise regularly, and get adequate sleep.',
+                icon: Icons.healing,
+              ),
+              const SizedBox(height: 16),
+              _buildTipCard(
+                context,
+                title: 'Partner Communication',
+                content:
+                    'Discuss health concerns openly with your partner to ensure mutual understanding.',
+                icon: Icons.chat,
+              ),
+            ],
+          ),
+        ),
+      ),
+    ],
+  );
+}

lib/screens/husband/_HusbandLearnScreen.dart

@@ -0,0 +1,165 @@
+class _HusbandLearnScreen extends StatelessWidget {
+  const _HusbandLearnScreen();
+
+  @override
+  Widget build(BuildContext context) {
+    return SafeArea(
+      child: SingleChildScrollView(
+        padding: const EdgeInsets.all(20),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Text(
+              'Learn',
+              style: GoogleFonts.outfit(
+                fontSize: 28,
+                fontWeight: FontWeight.w600,
+                color: AppColors.navyBlue,
+              ),
+            ),
+            const SizedBox(height: 24),
+            _buildSection(context, 'Understanding Her', [
+              _LearnItem(
+                icon: Icons.loop,
+                title: 'The 4 Phases of Her Cycle',
+                subtitle: 'What\'s happening in her body each month',
+                articleId: 'four_phases',
+              ),
+              _LearnItem(
+                icon: Icons.psychology_outlined,
+                title: 'Why Does Her Mood Change?',
+                subtitle: 'Hormones explained simply',
+                articleId: 'mood_changes',
+              ),
+              _LearnItem(
+                icon: Icons.medical_information_outlined,
+                title: 'PMS is Real',
+                subtitle: 'Medical facts for supportive husbands',
+                articleId: 'pms_is_real',
+              ),
+            ]),
+            const SizedBox(height: 24),
+            _buildSection(context, 'Biblical Manhood', [
+              _LearnItem(
+                icon: Icons.favorite,
+                title: 'Loving Like Christ',
+                subtitle: 'Ephesians 5 in daily practice',
+                articleId: 'loving_like_christ',
+              ),
+              _LearnItem(
+                icon: Icons.handshake,
+                title: 'Servant Leadership at Home',
+                subtitle: 'What it really means',
+                articleId: 'servant_leadership',
+              ),
+              _LearnItem(
+                icon: Icons.auto_awesome,
+                title: 'Praying for Your Wife',
+                subtitle: 'Practical guide',
+                articleId: 'praying_for_wife',
+              ),
+            ]),
+            const SizedBox(height: 24),
+            _buildSection(context, 'NFP for Husbands', [
+              _LearnItem(
+                icon: Icons.show_chart,
+                title: 'Reading the Charts Together',
+                subtitle: 'Understanding fertility signs',
+                articleId: 'reading_charts',
+              ),
+              _LearnItem(
+                icon: Icons.schedule,
+                title: 'Abstinence as Spiritual Discipline',
+                subtitle: 'Growing together during fertile days',
+                articleId: 'abstinence_discipline',
+              ),
+            ]),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _buildSection(BuildContext context, String title, List<_LearnItem> items) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Text(
+          title,
+          style: GoogleFonts.outfit(
+            fontSize: 14,
+            fontWeight: FontWeight.w500,
+            color: AppColors.warmGray,
+            letterSpacing: 0.5,
+          ),
+        ),
+        const SizedBox(height: 8),
+        Container(
+          decoration: BoxDecoration(
+            color: Colors.white,
+            borderRadius: BorderRadius.circular(12),
+          ),
+          child: Column(
+            children: items
+                .map((item) => ListTile(
+                      leading: Container(
+                        width: 40,
+                        height: 40,
+                        decoration: BoxDecoration(
+                          color: AppColors.navyBlue.withOpacity(0.1),
+                          borderRadius: BorderRadius.circular(10),
+                        ),
+                        child: Icon(
+                          item.icon,
+                          color: AppColors.navyBlue,
+                          size: 20,
+                        ),
+                      ),
+                      title: Text(
+                        item.title,
+                        style: GoogleFonts.outfit(
+                          fontSize: 15,
+                          fontWeight: FontWeight.w500,
+                          color: AppColors.charcoal,
+                        ),
+                      ),
+                      subtitle: Text(
+                        item.subtitle,
+                        style: GoogleFonts.outfit(
+                          fontSize: 13,
+                          color: AppColors.warmGray,
+                        ),
+                      ),
+                      trailing: const Icon(
+                        Icons.chevron_right,
+                        color: AppColors.lightGray,
+                      ),
+                      onTap: () {
+                        Navigator.push(
+                          context,
+                          MaterialPageRoute(
+                            builder: (context) => LearnArticleScreen(articleId: item.articleId),
+                          ),
+                        );
+                      },
+                    ))
+                .toList(),
+          ),
+        ),
+      ],
+    );
+  }
+
+class _LearnItem {
+  final IconData icon;
+  final String title;
+  final String subtitle;
+  final String articleId;
+
+  const _LearnItem({
+    required this.icon,
+    required this.title,
+    required this.subtitle,
+    required this.articleId,
+  });
+}

lib/screens/learn/husband_learn_screen.dart

@@ -0,0 +1,204 @@
+import 'package:flutter/material.dart';
+import 'package:christian_period_tracker/models/scripture.dart';
+
+class HusbandLearnScreen extends StatelessWidget {
+  const HusbandLearnScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Reproductive Health Education'),
+        actions: [
+          IconButton(
+            icon: const Icon(Icons.bookmark),
+            onPressed: () {},
+          ),
+        ],
+      ),
+      body: SingleChildScrollView(
+        child: Padding(
+          padding: const EdgeInsets.all(16.0),
+          child: Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              _buildHealthTipsSection(context),
+              const SizedBox(height: 24),
+              _buildDiseasePreventionSection(context),
+              const SizedBox(height: 24),
+              _buildPracticalAdviceSection(context),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+
+  Widget _buildHealthTipsSection(BuildContext context) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Text(
+          'Reproductive Health Tips',
+          style: Theme.of(context).textTheme.titleLarge,
+        ),
+        const SizedBox(height: 16),
+        Card(
+          elevation: 2,
+          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
+          child: Padding(
+            padding: const EdgeInsets.all(16.0),
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                _buildTipCard(
+                  context,
+                  title: 'Understanding Female Cycles',
+                  content: 'Learn about the different phases of your wife\'s menstrual cycle and how they affect her health.',
+                  icon: Icons.calendar_month,
+                ),
+                const SizedBox(height: 16),
+                _buildTipCard(
+                  context,
+                  title: 'Supportive Role',
+                  content: 'Be supportive during different phases, understanding when she may need more emotional support or rest.',
+                  icon: Icons.support_agent,
+                ),
+                const SizedBox(height: 16),
+                _buildTipCard(
+                  context,
+                  title: 'Nutritional Support',
+                  content: 'Understand how nutrition affects reproductive health and discuss dietary choices together.',
+                  icon: Icons.food_bank,
+                ),
+              ],
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildDiseasePreventionSection(BuildContext context) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Text(
+          'Disease Prevention Between Partners',
+          style: Theme.of(context).textTheme.titleLarge,
+        ),
+        const SizedBox(height: 16),
+        Card(
+          elevation: 2,
+          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
+          child: Padding(
+            padding: const EdgeInsets.all(16.0),
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                _buildTipCard(
+                  context,
+                  title: 'Safe Sexual Practices',
+                  content: 'Use protection consistently to prevent sexually transmitted infections and maintain mutual health.',
+                  icon: Icons.protect,
+                ),
+                const SizedBox(height: 16),
+                _buildTipCard(
+                  context,
+                  title: 'Regular Testing',
+                  content: 'Schedule regular STI screenings together with your partner for early detection and treatment.',
+                  icon: Icons.medical_information,
+                ),
+                const SizedBox(height: 16),
+                _buildTipCard(
+                  context,
+                  title: 'Open Communication',
+                  content: 'Discuss health concerns openly to ensure both partners understand each other\'s needs and maintain trust.',
+                  icon: Icons.chat,
+                ),
+              ],
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildPracticalAdviceSection(BuildContext context) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Text(
+          'Practical Advice for Partnership',
+          style: Theme.of(context).textTheme.titleLarge,
+        ),
+        const SizedBox(height: 16),
+        Card(
+          elevation: 2,
+          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
+          child: Padding(
+            padding: const EdgeInsets.all(16.0),
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                _buildTipCard(
+                  context,
+                  title: 'Educate Yourself',
+                  content: 'Take the initiative to learn about reproductive health and partner needs.',
+                  icon: Icons.school,
+                ),
+                const SizedBox(height: 16),
+                _buildTipCard(
+                  context,
+                  title: 'Active Listening',
+                  content: 'Listen attentively when your wife discusses her health concerns or feelings.',
+                  icon: Icons.mic_none,
+                ),
+              ],
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildTipCard(BuildContext context, {required String title, required String content, required IconData icon}) {
+    return Card(
+      elevation: 1,
+      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
+      child: Padding(
+        padding: const EdgeInsets.all(16.0),
+        child: Row(
+          children: [
+            Container(
+              width: 40,
+              height: 40,
+              decoration: BoxDecoration(
+                color: Theme.of(context).colorScheme.primaryContainer.withOpacity(0.2),
+                shape: BoxShape.circle,
+              ),
+              child: Icon(icon, size: 24, color: Theme.of(context).colorScheme.primary),
+            ),
+            const SizedBox(width: 16),
+            Expanded(
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  Text(
+                    title,
+                    style: Theme.of(context).textTheme.titleMedium?.copyWith(fontWeight: FontWeight.bold),
+                  ),
+                  const SizedBox(height: 4),
+                  Text(
+                    content,
+                    style: Theme.of(context).textTheme.bodyMedium,
+                  ),
+                ],
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/screens/learn/wife_learn_screen.dart

@@ -0,0 +1,201 @@
+import 'package:flutter/material.dart';
+import 'package:christian_period_tracker/models/scripture.dart';
+
+class WifeLearnScreen extends StatelessWidget {
+  const WifeLearnScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Reproductive Health Education'),
+        actions: [
+          IconButton(
+            icon: const Icon(Icons.bookmark),
+            onPressed: () {},
+          ),
+        ],
+      ),
+      body: SingleChildScrollView(
+        child: Padding(
+          padding: const EdgeInsets.all(16.0),
+          child: Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              _buildHealthTipsSection(context),
+              const SizedBox(height: 24),
+              _buildDiseasePreventionSection(context),
+              const SizedBox(height: 24),
+              _buildPracticalAdviceSection(context),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+
+  Widget _buildHealthTipsSection(BuildContext context) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Text(
+          'Reproductive Health Tips',
+          style: Theme.of(context).textTheme.titleLarge,
+        ),
+        const SizedBox(height: 16),
+        Card(
+          elevation: 2,
+          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
+          child: Padding(
+            padding: const EdgeInsets.all(16.0),
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                _buildTipCard(
+                  context,
+                  title: 'Regular Medical Check-ups',
+                  content: 'Schedule regular gynecological check-ups to monitor your reproductive health and catch any potential issues early.',
+                  icon: Icons.medical_services,
+                ),
+                const SizedBox(height: 16),
+                _buildTipCard(
+                  context,
+                  title: 'Healthy Lifestyle',
+                  content: 'Maintain a balanced diet, exercise regularly, and get adequate sleep to support overall reproductive wellness.',
+                  icon: Icons.healing,
+                ),
+                const SizedBox(height: 16),
+                _buildTipCard(
+                  context,
+                  title: 'Stress Management',
+                  content: 'Chronic stress can affect menstrual cycles and fertility. Practice mindfulness techniques and seek support when needed.',
+                  icon: Icons.spa,
+                ),
+              ],
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildDiseasePreventionSection(BuildContext context) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Text(
+          'Disease Prevention Between Partners',
+          style: Theme.of(context).textTheme.titleLarge,
+        ),
+        const SizedBox(height: 16),
+        Card(
+          elevation: 2,
+          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
+          child: Padding(
+            padding: const EdgeInsets.all(16.0),
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                _buildTipCard(
+                  context,
+                  title: 'Safe Sexual Practices',
+                  content: 'Use protection consistently to prevent sexually transmitted infections and maintain mutual health.',
+                  icon: Icons.protect,
+                ),
+                const SizedBox(height: 16),
+                _buildTipCard(
+                  context,
+                  title: 'Regular Testing',
+                  content: 'Schedule regular STI screenings together with your partner for early detection and treatment.',
+                  icon: Icons.medical_information,
+                ),
+                const SizedBox(height: 16),
+                _buildTipCard(
+                  context,
+                  title: 'Open Communication',
+                  content: 'Discuss health concerns openly to ensure both partners understand each other\'s needs and maintain trust.',
+                  icon: Icons.chat,
+                ),
+              ],
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildPracticalAdviceSection(BuildContext context) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Text(
+          'Practical Advice for Partnership',
+          style: Theme.of(context).textTheme.titleLarge,
+        ),
+        const SizedBox(height: 16),
+        Card(
+          elevation: 2,
+          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
+          child: Padding(
+            padding: const EdgeInsets.all(16.0),
+            children: [
+              _buildTipCard(
+                context,
+                title: 'Support System',
+                content: 'Build a support system that includes both your partner and trusted healthcare providers.',
+                icon: Icons.supervisor_account,
+              ),
+              const SizedBox(height: 16),
+              _buildTipCard(
+                context,
+                title: 'Educate Together',
+                content: 'Both partners should educate themselves about reproductive health to make informed decisions together.',
+                icon: Icons.school,
+              ),
+            ],
+          ),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildTipCard(BuildContext context, {required String title, required String content, required IconData icon}) {
+    return Card(
+      elevation: 1,
+      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
+      child: Padding(
+        padding: const EdgeInsets.all(16.0),
+        child: Row(
+          children: [
+            Container(
+              width: 40,
+              height: 40,
+              decoration: BoxDecoration(
+                color: Theme.of(context).colorScheme.primaryContainer.withOpacity(0.2),
+                shape: BoxShape.circle,
+              ),
+              child: Icon(icon, size: 24, color: Theme.of(context).colorScheme.primary),
+            ),
+            const SizedBox(width: 16),
+            Expanded(
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  Text(
+                    title,
+                    style: Theme.of(context).textTheme.titleMedium?.copyWith(fontWeight: FontWeight.bold),
+                  ),
+                  const SizedBox(height: 4),
+                  Text(
+                    content,
+                    style: Theme.of(context).textTheme.bodyMedium,
+                  ),
+                ],
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/screens/settings/appearance_screen.dart

@@ -0,0 +1,162 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import '../../models/user_profile.dart';
+import '../../providers/user_provider.dart';
+import '../../theme/app_theme.dart';
+
+class AppearanceScreen extends ConsumerWidget {
+  const AppearanceScreen({super.key});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final userProfile = ref.watch(userProfileProvider);
+
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Appearance'),
+      ),
+      body: userProfile == null
+          ? const Center(child: CircularProgressIndicator())
+          : ListView(
+              padding: const EdgeInsets.all(16.0),
+              children: [
+                _buildThemeModeSelector(context, ref, userProfile.themeMode),
+                const SizedBox(height: 24),
+                _buildAccentColorSelector(
+                    context, ref, userProfile.accentColor, AppColors.sageGreen),
+                const SizedBox(height: 32),
+                _buildRelationshipStatusSelector(context, ref, userProfile.relationshipStatus),
+              ],
+            ),
+    );
+  }
+
+  Widget _buildThemeModeSelector(
+      BuildContext context, WidgetRef ref, AppThemeMode currentMode) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Text(
+          'Theme Mode',
+          style: Theme.of(context).textTheme.titleLarge,
+        ),
+        const SizedBox(height: 16),
+        SegmentedButton<AppThemeMode>(
+          segments: const [
+            ButtonSegment(
+              value: AppThemeMode.light,
+              label: Text('Light'),
+              icon: Icon(Icons.light_mode),
+            ),
+            ButtonSegment(
+              value: AppThemeMode.dark,
+              label: Text('Dark'),
+              icon: Icon(Icons.dark_mode),
+            ),
+            ButtonSegment(
+              value: AppThemeMode.system,
+              label: Text('System'),
+              icon: Icon(Icons.brightness_auto),
+            ),
+          ],
+          selected: {currentMode},
+          onSelectionChanged: (Set<AppThemeMode> newSelection) {
+            if (newSelection.isNotEmpty) {
+              ref
+                  .read(userProfileProvider.notifier)
+                  .updateThemeMode(newSelection.first);
+            }
+          },
+          style: SegmentedButton.styleFrom(
+            fixedSize: const Size.fromHeight(48),
+          )
+        ),
+      ],
+    );
+  }
+
+  Widget _buildAccentColorSelector(BuildContext context, WidgetRef ref,
+      String currentAccent) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Text(
+          'Accent Color',
+          style: Theme.of(context).textTheme.titleLarge,
+        ),
+        const SizedBox(height: 16),
+        Wrap(
+          spacing: 16,
+          runSpacing: 16,
+          children: [
+            GestureDetector(
+              onTap: () {
+                ref
+                    .read(userProfileProvider.notifier)
+                    .updateAccentColor('0xFFA8C5A8');
+              },
+              child: Container(
+                width: 48,
+                height: 48,
+                decoration: BoxDecoration(
+                  color: AppColors.sageGreen,
+                  shape: BoxShape.circle,
+                  border: Border.all(
+                    color:
+                        Theme.of(context).colorScheme.primary, // Assuming currentAccent is sageGreen
+                    width: 3,
+                  ),
+                ),
+                child: const Icon(Icons.check, color: Colors.white),
+              ),
+            ),
+          ],
+        ),
+      ],
+    );
+  }
+
+  Widget _buildRelationshipStatusSelector(
+      BuildContext context, WidgetRef ref, RelationshipStatus currentStatus) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Text(
+          'Relationship Status',
+          style: Theme.of(context).textTheme.titleLarge,
+        ),
+        const SizedBox(height: 16),
+        SegmentedButton<RelationshipStatus>(
+          segments: const [
+            ButtonSegment(
+              value: RelationshipStatus.single,
+              label: Text('Single'),
+              icon: Icon(Icons.person_outline),
+            ),
+            ButtonSegment(
+              value: RelationshipStatus.engaged,
+              label: Text('Engaged'),
+              icon: Icon(Icons.favorite_border),
+            ),
+            ButtonSegment(
+              value: RelationshipStatus.married,
+              label: Text('Married'),
+              icon: Icon(Icons.favorite),
+            ),
+          ],
+          selected: {currentStatus},
+          onSelectionChanged: (Set<RelationshipStatus> newSelection) {
+            if (newSelection.isNotEmpty) {
+              ref
+                  .read(userProfileProvider.notifier)
+                  .updateRelationshipStatus(newSelection.first);
+            }
+          },
+          style: SegmentedButton.styleFrom(
+            fixedSize: const Size.fromHeight(48),
+          )
+        ),
+      ],
+    );
+  }
+}

lib/screens/settings/cycle_history_screen.dart

@@ -0,0 +1,240 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:intl/intl.dart';
+import 'package:collection/collection.dart';
+import '../../models/cycle_entry.dart';
+import '../../providers/user_provider.dart';
+
+class CycleHistoryScreen extends ConsumerWidget {
+  const CycleHistoryScreen({super.key});
+
+  void _showDeleteAllDialog(BuildContext context, WidgetRef ref) {
+    showDialog(
+      context: context,
+      builder: (context) => AlertDialog(
+        title: const Text('Delete All History?'),
+        content: const Text(
+            'This will permanently delete all cycle entries. This action cannot be undone.'),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.pop(context),
+            child: const Text('Cancel'),
+          ),
+          TextButton(
+            onPressed: () {
+              ref.read(cycleEntriesProvider.notifier).clearEntries();
+              Navigator.pop(context);
+              ScaffoldMessenger.of(context).showSnackBar(
+                const SnackBar(content: Text('All cycle history has been deleted.')),
+              );
+            },
+            child: const Text('Delete All', style: TextStyle(color: Colors.red)),
+          ),
+        ],
+      ),
+    );
+  }
+
+  void _showDeleteMonthDialog(BuildContext context, WidgetRef ref) {
+    showDialog(
+      context: context,
+      builder: (context) => const _DeleteMonthDialog(),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final entries = ref.watch(cycleEntriesProvider);
+
+    final groupedEntries = groupBy(
+      entries,
+      (CycleEntry entry) => DateFormat('MMMM yyyy').format(entry.date),
+    );
+
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Cycle History'),
+        actions: [
+          if (entries.isNotEmpty)
+            PopupMenuButton<String>(
+              onSelected: (value) {
+                if (value == 'delete_all') {
+                  _showDeleteAllDialog(context, ref);
+                } else if (value == 'delete_month') {
+                  _showDeleteMonthDialog(context, ref);
+                }
+              },
+              itemBuilder: (BuildContext context) => <PopupMenuEntry<String>>[
+                const PopupMenuItem<String>(
+                  value: 'delete_month',
+                  child: Text('Delete by Month'),
+                ),
+                const PopupMenuItem<String>(
+                  value: 'delete_all',
+                  child: Text('Delete All Data'),
+                ),
+              ],
+            ),
+        ],
+      ),
+      body: entries.isEmpty
+          ? Center(
+              child: Text(
+                'No cycle history found.',
+                style: Theme.of(context).textTheme.bodyLarge,
+              ),
+            )
+          : ListView.builder(
+              itemCount: groupedEntries.keys.length,
+              itemBuilder: (context, index) {
+                final month = groupedEntries.keys.elementAt(index);
+                final monthEntries = groupedEntries[month]!;
+                return ExpansionTile(
+                  title: Text(month, style: Theme.of(context).textTheme.titleLarge),
+                  initiallyExpanded: index == 0,
+                  children: monthEntries.map((entry) {
+                    return Dismissible(
+                      key: Key(entry.id),
+                      direction: DismissDirection.endToStart,
+                      onDismissed: (direction) {
+                        ref.read(cycleEntriesProvider.notifier).deleteEntry(entry.id);
+                        ScaffoldMessenger.of(context).showSnackBar(
+                          SnackBar(
+                              content: Text(
+                                  'Entry for ${DateFormat.yMMMd().format(entry.date)} deleted.')),
+                        );
+                      },
+                      background: Container(
+                        color: Colors.red,
+                        alignment: Alignment.centerRight,
+                        padding: const EdgeInsets.symmetric(horizontal: 20.0),
+                        child: const Icon(Icons.delete, color: Colors.white),
+                      ),
+                      child: ListTile(
+                        title: Text(DateFormat.yMMMMEEEEd().format(entry.date)),
+                        subtitle: Text(_buildEntrySummary(entry)),
+                        isThreeLine: true,
+                      ),
+                    );
+                  }).toList(),
+                );
+              },
+            ),
+    );
+  }
+
+  String _buildEntrySummary(CycleEntry entry) {
+    final summary = <String>[];
+    if (entry.isPeriodDay) {
+      summary.add('Period');
+    }
+    if (entry.mood != null) {
+      summary.add('Mood: ${entry.mood!.label}');
+    }
+    if (entry.symptomCount > 0) {
+      summary.add('${entry.symptomCount} symptom(s)');
+    }
+    if (entry.notes != null && entry.notes!.isNotEmpty) {
+      summary.add('Note');
+    }
+    if (summary.isEmpty) {
+      return 'No specific data logged.';
+    }
+    return summary.join(' • ');
+  }
+}
+
+class _DeleteMonthDialog extends ConsumerStatefulWidget {
+  const _DeleteMonthDialog();
+
+  @override
+  ConsumerState<_DeleteMonthDialog> createState() => _DeleteMonthDialogState();
+}
+
+class _DeleteMonthDialogState extends ConsumerState<_DeleteMonthDialog> {
+  late int _selectedYear;
+  late int _selectedMonth;
+
+  @override
+  void initState() {
+    super.initState();
+    final now = DateTime.now();
+    _selectedYear = now.year;
+    _selectedMonth = now.month;
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final years =
+        List.generate(5, (index) => DateTime.now().year - index);
+    final months = List.generate(12, (index) => index + 1);
+
+    return AlertDialog(
+      title: const Text('Delete by Month'),
+      content: Column(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          const Text('Select a month and year to delete all entries from.'),
+          const SizedBox(height: 24),
+          Row(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: [
+              DropdownButton<int>(
+                value: _selectedMonth,
+                items: months.map((month) => DropdownMenuItem(
+                          value: month,
+                          child: Text(DateFormat('MMMM').format(DateTime(0, month))),
+                        ))
+                    .toList(),
+                onChanged: (value) {
+                  if (value != null) {
+                    setState(() {
+                      _selectedMonth = value;
+                    });
+                  }
+                },
+              ),
+              const SizedBox(width: 16),
+              DropdownButton<int>(
+                value: _selectedYear,
+                items: years
+                    .map((year) => DropdownMenuItem(
+                          value: year,
+                          child: Text(year.toString()),
+                        ))
+                    .toList(),
+                onChanged: (value) {
+                  if (value != null) {
+                    setState(() {
+                      _selectedYear = value;
+                    });
+                  }
+                },
+              ),
+            ],
+          ),
+        ],
+      ),
+      actions: [
+        TextButton(
+          onPressed: () => Navigator.pop(context),
+          child: const Text('Cancel'),
+        ),
+        TextButton(
+          onPressed: () {
+            ref
+                .read(cycleEntriesProvider.notifier)
+                .deleteEntriesForMonth(_selectedYear, _selectedMonth);
+            Navigator.pop(context);
+            ScaffoldMessenger.of(context).showSnackBar(
+              SnackBar(
+                  content: Text(
+                      'Deleted entries for ${DateFormat('MMMM yyyy').format(DateTime(0, _selectedMonth))}.')),
+            );
+          },
+          child: const Text('Delete', style: TextStyle(color: Colors.red)),
+        ),
+      ],
+    );
+  }
+}

lib/screens/settings/cycle_settings_screen.dart

@@ -0,0 +1,143 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:intl/intl.dart';
+import '../../models/user_profile.dart';
+import '../../providers/user_provider.dart';
+
+class CycleSettingsScreen extends ConsumerStatefulWidget {
+  const CycleSettingsScreen({super.key});
+
+  @override
+  ConsumerState<CycleSettingsScreen> createState() =>
+      _CycleSettingsScreenState();
+}
+
+class _CycleSettingsScreenState extends ConsumerState<CycleSettingsScreen> {
+  final _formKey = GlobalKey<FormState>();
+  late TextEditingController _cycleLengthController;
+  late TextEditingController _periodLengthController;
+  DateTime? _lastPeriodStartDate;
+  bool _isIrregularCycle = false;
+
+  @override
+  void initState() {
+    super.initState();
+    final userProfile = ref.read(userProfileProvider);
+    _cycleLengthController = TextEditingController(
+        text: userProfile?.averageCycleLength.toString() ?? '28');
+    _periodLengthController = TextEditingController(
+        text: userProfile?.averagePeriodLength.toString() ?? '5');
+    _lastPeriodStartDate = userProfile?.lastPeriodStartDate;
+    _isIrregularCycle = userProfile?.isIrregularCycle ?? false;
+  }
+
+  @override
+  void dispose() {
+    _cycleLengthController.dispose();
+    _periodLengthController.dispose();
+    super.dispose();
+  }
+
+  void _saveSettings() {
+    if (_formKey.currentState!.validate()) {
+      final userProfile = ref.read(userProfileProvider);
+      if (userProfile != null) {
+        final updatedProfile = userProfile.copyWith(
+          averageCycleLength: int.tryParse(_cycleLengthController.text) ?? userProfile.averageCycleLength,
+          averagePeriodLength: int.tryParse(_periodLengthController.text) ?? userProfile.averagePeriodLength,
+          lastPeriodStartDate: _lastPeriodStartDate,
+          isIrregularCycle: _isIrregularCycle,
+        );
+        ref.read(userProfileProvider.notifier).updateProfile(updatedProfile);
+        Navigator.of(context).pop();
+        ScaffoldMessenger.of(context).showSnackBar(
+          const SnackBar(content: Text('Cycle settings saved!')),
+        );
+      }
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Cycle Settings'),
+      ),
+      body: Form(
+        key: _formKey,
+        child: ListView(
+          padding: const EdgeInsets.all(24.0),
+          children: [
+            TextFormField(
+              controller: _cycleLengthController,
+              keyboardType: TextInputType.number,
+              decoration: const InputDecoration(
+                labelText: 'Average Cycle Length (days)',
+                hintText: 'e.g., 28',
+              ),
+              validator: (value) {
+                if (value == null || int.tryParse(value) == null) {
+                  return 'Please enter a valid number';
+                }
+                return null;
+              },
+            ),
+            const SizedBox(height: 24),
+            TextFormField(
+              controller: _periodLengthController,
+              keyboardType: TextInputType.number,
+              decoration: const InputDecoration(
+                labelText: 'Average Period Length (days)',
+                hintText: 'e.g., 5',
+              ),
+              validator: (value) {
+                if (value == null || int.tryParse(value) == null) {
+                  return 'Please enter a valid number';
+                }
+                return null;
+              },
+            ),
+            const SizedBox(height: 24),
+            ListTile(
+              contentPadding: EdgeInsets.zero,
+              title: const Text('Last Period Start Date'),
+              subtitle: Text(_lastPeriodStartDate == null
+                  ? 'Not set'
+                  : DateFormat.yMMMMd().format(_lastPeriodStartDate!)),
+              trailing: const Icon(Icons.calendar_today),
+              onTap: () async {
+                final pickedDate = await showDatePicker(
+                  context: context,
+                  initialDate: _lastPeriodStartDate ?? DateTime.now(),
+                  firstDate: DateTime(DateTime.now().year - 1),
+                  lastDate: DateTime.now(),
+                );
+                if (pickedDate != null) {
+                  setState(() {
+                    _lastPeriodStartDate = pickedDate;
+                  });
+                }
+              },
+            ),
+            const Divider(),
+            SwitchListTile(
+              contentPadding: EdgeInsets.zero,
+              title: const Text('My cycle is irregular'),
+              value: _isIrregularCycle,
+              onChanged: (value) {
+                setState(() {
+                  _isIrregularCycle = value;
+                });
+              },
+            ),
+            const SizedBox(height: 40),
+            ElevatedButton(
+              onPressed: _saveSettings,
+              child: const Text('Save Settings'),
+            )
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/screens/settings/export_data_screen.dart

@@ -0,0 +1,70 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import '../../providers/user_provider.dart';
+import '../../services/pdf_service.dart';
+import '../../services/ics_service.dart';
+
+class ExportDataScreen extends ConsumerWidget {
+  const ExportDataScreen({super.key});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final userProfile = ref.watch(userProfileProvider);
+    final cycleEntries = ref.watch(cycleEntriesProvider);
+
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Export Data'),
+      ),
+      body: userProfile == null
+          ? const Center(child: CircularProgressIndicator())
+          : ListView(
+              padding: const EdgeInsets.all(16.0),
+              children: [
+                ListTile(
+                  leading: const Icon(Icons.picture_as_pdf),
+                  title: const Text('Export as PDF'),
+                  subtitle: const Text('Generate a printable PDF report of your cycle data.'),
+                  trailing: const Icon(Icons.chevron_right),
+                  onTap: () async {
+                    try {
+                      ScaffoldMessenger.of(context).showSnackBar(
+                        const SnackBar(content: Text('Generating PDF report...')),
+                      );
+                      await PdfService.generateCycleReport(userProfile, cycleEntries);
+                      ScaffoldMessenger.of(context).showSnackBar(
+                        const SnackBar(content: Text('PDF report generated successfully!')),
+                      );
+                    } catch (e) {
+                      ScaffoldMessenger.of(context).showSnackBar(
+                        SnackBar(content: Text('Failed to generate PDF: $e')),
+                      );
+                    }
+                  },
+                ),
+                ListTile(
+                  leading: const Icon(Icons.calendar_month),
+                  title: const Text('Export to Calendar File (.ics)'),
+                  subtitle: const Text('Generate a calendar file for your cycle dates.'),
+                  trailing: const Icon(Icons.chevron_right),
+                  onTap: () async {
+                    try {
+                      ScaffoldMessenger.of(context).showSnackBar(
+                        const SnackBar(content: Text('Generating ICS file...')),
+                      );
+                      await IcsService.generateCycleCalendar(cycleEntries);
+                      ScaffoldMessenger.of(context).showSnackBar(
+                        const SnackBar(content: Text('ICS file generated successfully!')),
+                      );
+                    } catch (e) {
+                      ScaffoldMessenger.of(context).showSnackBar(
+                        SnackBar(content: Text('Failed to generate ICS file: $e')),
+                      );
+                    }
+                  },
+                ),
+              ],
+            ),
+    );
+  }
+}

lib/screens/settings/privacy_settings_screen.dart

@@ -0,0 +1,141 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:health/health.dart';
+import '../../providers/user_provider.dart';
+import '../../services/health_service.dart';
+
+class PrivacySettingsScreen extends ConsumerStatefulWidget {
+  const PrivacySettingsScreen({super.key});
+
+  @override
+  ConsumerState<PrivacySettingsScreen> createState() =>
+      _PrivacySettingsScreenState();
+}
+
+class _PrivacySettingsScreenState extends ConsumerState<PrivacySettingsScreen> {
+  bool _hasPermissions = false;
+  final HealthService _healthService = HealthService();
+
+  @override
+  void initState() {
+    super.initState();
+    _checkPermissions();
+  }
+
+  Future<void> _checkPermissions() async {
+    final hasPermissions = await _healthService.hasPermissions(_healthService.menstruationDataTypes);
+    setState(() {
+      _hasPermissions = hasPermissions;
+    });
+  }
+
+  Future<void> _requestPermissions() async {
+    final authorized = await _healthService.requestAuthorization(_healthService.menstruationDataTypes);
+    if (authorized) {
+      _hasPermissions = true;
+      ScaffoldMessenger.of(context).showSnackBar(
+        const SnackBar(content: Text('Health app access granted!')),
+      );
+    } else {
+      _hasPermissions = false;
+      ScaffoldMessenger.of(context).showSnackBar(
+        const SnackBar(content: Text('Health app access denied.')),
+      );
+    }
+    setState(() {}); // Rebuild to update UI
+  }
+
+  Future<void> _syncPeriodDays(bool sync) async {
+    if (sync) {
+      if (!_hasPermissions) {
+        // Request permissions if not already granted
+        final authorized = await _healthService.requestAuthorization(_healthService.menstruationDataTypes);
+        if (!authorized) {
+          if (mounted) {
+            ScaffoldMessenger.of(context).showSnackBar(
+              const SnackBar(content: Text('Cannot sync without health app permissions.')),
+            );
+          }
+          return;
+        }
+        _hasPermissions = true;
+      }
+
+      if (mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          const SnackBar(content: Text('Syncing period data...')),
+        );
+      }
+      final userProfile = ref.read(userProfileProvider);
+      final cycleEntries = ref.read(cycleEntriesProvider);
+
+      if (userProfile != null) {
+        final success = await _healthService.writeMenstruationData(cycleEntries);
+        if (mounted) {
+          if (success) {
+            ScaffoldMessenger.of(context).showSnackBar(
+              const SnackBar(content: Text('Period data synced successfully!')),
+            );
+            // Optionally store a flag in userProfile if sync is active
+            // userProfile.copyWith(syncPeriodToHealth: true)
+          } else {
+            ScaffoldMessenger.of(context).showSnackBar(
+              const SnackBar(content: Text('Failed to sync period data.')),
+            );
+          }
+        }
+      }
+    } else {
+      // Logic to disable sync (e.g., revoke permissions if Health package supports it,
+      // or just stop writing data in future)
+      if (mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          const SnackBar(content: Text('Period data sync disabled.')),
+        );
+      }
+    }
+    setState(() {}); // Rebuild to update UI
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    // This value would ideally come from userProfile.syncPeriodToHealth
+    bool syncPeriodToHealth = _hasPermissions;
+
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Privacy Settings'),
+      ),
+      body: ListView(
+        padding: const EdgeInsets.all(16.0),
+        children: [
+          ListTile(
+            title: const Text('Health App Integration'),
+            subtitle: _hasPermissions
+                ? const Text('Connected to Health App. Period data can be synced.')
+                : const Text('Not connected. Tap to grant access.'),
+            trailing: _hasPermissions ? const Icon(Icons.check_circle, color: Colors.green) : const Icon(Icons.warning, color: Colors.orange),
+            onTap: _requestPermissions,
+          ),
+          SwitchListTile(
+            title: const Text('Sync Period Days'),
+            subtitle: const Text('Automatically sync your period start and end dates to your health app.'),
+            value: syncPeriodToHealth,
+            onChanged: (value) async {
+              if (value) {
+                await _syncPeriodDays(true);
+              } else {
+                await _syncPeriodDays(false);
+              }
+              setState(() {
+                syncPeriodToHealth = value; // Update local state for toggle
+              });
+            },
+            enabled: _hasPermissions, // Only enable if connected
+          ),
+          // TODO: Add more privacy settings if needed
+        ],
+      ),
+    );
+  }
+}

lib/screens/settings/sharing_settings_screen.dart

@@ -0,0 +1,87 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import '../../models/user_profile.dart';
+import '../../providers/user_provider.dart';
+
+class SharingSettingsScreen extends ConsumerWidget {
+  const SharingSettingsScreen({super.key});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final userProfile = ref.watch(userProfileProvider);
+
+    if (userProfile == null) {
+      return Scaffold(
+        appBar: AppBar(
+          title: const Text('Sharing Settings'),
+        ),
+        body: const Center(child: CircularProgressIndicator()),
+      );
+    }
+
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Sharing Settings'),
+      ),
+      body: ListView(
+        padding: const EdgeInsets.all(16.0),
+        children: [
+          SwitchListTile(
+            title: const Text('Share Moods'),
+            value: userProfile.shareMoods,
+            onChanged: (value) {
+              ref
+                  .read(userProfileProvider.notifier)
+                  .updateProfile(userProfile.copyWith(shareMoods: value));
+            },
+          ),
+          SwitchListTile(
+            title: const Text('Share Symptoms'),
+            value: userProfile.shareSymptoms,
+            onChanged: (value) {
+              ref
+                  .read(userProfileProvider.notifier)
+                  .updateProfile(userProfile.copyWith(shareSymptoms: value));
+            },
+          ),
+          SwitchListTile(
+            title: const Text('Share Cravings'),
+            value: userProfile.shareCravings,
+            onChanged: (value) {
+              ref
+                  .read(userProfileProvider.notifier)
+                  .updateProfile(userProfile.copyWith(shareCravings: value));
+            },
+          ),
+          SwitchListTile(
+            title: const Text('Share Energy Levels'),
+            value: userProfile.shareEnergyLevels,
+            onChanged: (value) {
+              ref
+                  .read(userProfileProvider.notifier)
+                  .updateProfile(userProfile.copyWith(shareEnergyLevels: value));
+            },
+          ),
+          SwitchListTile(
+            title: const Text('Share Sleep Data'),
+            value: userProfile.shareSleep,
+            onChanged: (value) {
+              ref
+                  .read(userProfileProvider.notifier)
+                  .updateProfile(userProfile.copyWith(shareSleep: value));
+            },
+          ),
+          SwitchListTile(
+            title: const Text('Share Intimacy Details'),
+            value: userProfile.shareIntimacy,
+            onChanged: (value) {
+              ref
+                  .read(userProfileProvider.notifier)
+                  .updateProfile(userProfile.copyWith(shareIntimacy: value));
+            },
+          ),
+        ],
+      ),
+    );
+  }
+}

lib/services/health_service.dart

@@ -0,0 +1,75 @@
+import 'package:flutter/material.dart';
+import 'package:health/health.dart';
+import 'package:collection/collection.dart';
+import '../models/cycle_entry.dart';
+
+class HealthService {
+  static final HealthService _instance = HealthService._internal();
+  factory HealthService() => _instance;
+  HealthService._internal();
+
+  final Health _health = Health();
+  List<HealthDataType> _requestedTypes = [];
+
+  // Define data types for menstruation
+  static const List<HealthDataType> _menstruationDataTypes = [
+    HealthDataType.menstruation,
+  ];
+
+  Future<bool> requestAuthorization(List<HealthDataType> types) async {
+    _requestedTypes = types;
+    try {
+      final bool authorized = await _health.requestAuthorization(types);
+      return authorized;
+    } catch (e) {
+      debugPrint("Error requesting authorization: $e");
+      return false;
+    }
+  }
+
+  Future<bool> hasPermissions(List<HealthDataType> types) async {
+    return await _health.hasPermissions(types);
+  }
+
+  Future<bool> writeMenstruationData(List<CycleEntry> entries) async {
+    // Filter for period days
+    final periodEntries = entries.where((entry) => entry.isPeriodDay).toList();
+
+    if (periodEntries.isEmpty) {
+      debugPrint("No period entries to write.");
+      return true; // Nothing to write is not an error
+    }
+
+    // Check if authorized for menstruation data
+    final hasAuth = await hasPermissions([HealthDataType.menstruation]);
+    if (!hasAuth) {
+      debugPrint("Authorization not granted for menstruation data.");
+      return false;
+    }
+
+    bool allWrittenSuccessfully = true;
+    for (var entry in periodEntries) {
+      try {
+        final success = await _health.writeHealthData(
+          entry.date, // Start date
+          entry.date.add(const Duration(days: 1)), // End date (inclusive of start, so +1 day for all-day event)
+          HealthDataType.menstruation,
+          // HealthKit menstruation type often doesn't need a value,
+          // it's the presence of the event that matters.
+          // For other types, a value would be required.
+          Platform.isIOS ? 0.0 : 0.0, // Value depends on platform and data type
+        );
+        if (!success) {
+          allWrittenSuccessfully = false;
+          debugPrint("Failed to write menstruation data for ${entry.date}");
+        }
+      } catch (e) {
+        allWrittenSuccessfully = false;
+        debugPrint("Error writing menstruation data for ${entry.date}: $e");
+      }
+    }
+    return allWrittenSuccessfully;
+  }
+
+  List<HealthDataType> get mensturationDataTypes => _menstruationDataTypes;
+}

lib/services/ics_service.dart

@@ -0,0 +1,69 @@
+import 'dart:io';
+import 'package:flutter/foundation.dart';
+import 'package:icalendar_parser/icalendar_parser.dart';
+import 'package:path_provider/path_provider.dart';
+import 'package:open_filex/open_filex.dart';
+import 'package:universal_html/html.dart' as html;
+import 'package:intl/intl.dart';
+
+import '../models/cycle_entry.dart';
+
+class IcsService {
+  static Future<void> generateCycleCalendar(List<CycleEntry> entries) async {
+    final iCalendar = ICalendar(
+      properties: {
+        'prodid': '-//Christian Period Tracker//NONSGML v1.0//EN',
+        'version': '2.0',
+        'calscale': 'GREGORIAN',
+        'x-wr-calname': 'Cycle Tracking',
+        'x-wr-timezone': DateTime.now().timeZoneName,
+      },
+      components: [],
+    );
+
+    // Sort entries by date to ensure proper calendar order
+    entries.sort((a, b) => a.date.compareTo(b.date));
+
+    for (var entry in entries) {
+      if (entry.isPeriodDay) {
+        final date = entry.date;
+        final formattedDate = DateFormat('yyyyMMdd').format(date);
+        final uid = '${date.year}${date.month}${date.day}-${entry.id}@christianperiodtracker.app';
+
+        iCalendar.components.add(
+          CalendarEvent(
+            properties: {
+              'uid': uid,
+              'dtstamp': IcsDateTime(dt: DateTime.now()),
+              'dtstart': IcsDateTime(dt: date, isUtc: false, date: true), // All-day event
+              'dtend': IcsDateTime(dt: date.add(const Duration(days: 1)), isUtc: false, date: true), // End on next day for all-day
+              'summary': 'Period Day',
+              'description': 'Period tracking for ${DateFormat.yMMMd().format(date)}',
+            },
+          ),
+        );
+      }
+    }
+
+    final String icsContent = iCalendar.serialize();
+    final String fileName = 'cycle_calendar_${DateFormat('yyyyMMdd').format(DateTime.now())}.ics';
+
+    if (kIsWeb) {
+      // Web platform
+      final bytes = icsContent.codeUnits;
+      final blob = html.Blob([bytes], 'text/calendar');
+      final url = html.Url.createObjectUrlFromBlob(blob);
+      html.AnchorElement(href: url)
+        ..setAttribute('download', fileName)
+        ..click();
+      html.Url.revokeObjectUrl(url);
+    } else {
+      // Mobile platform
+      final directory = await getApplicationDocumentsDirectory();
+      final filePath = '${directory.path}/$fileName';
+      final file = File(filePath);
+      await file.writeAsString(icsContent);
+      await OpenFilex.open(filePath);
+    }
+  }
+}

lib/services/pdf_service.dart

@@ -0,0 +1,159 @@
+import 'dart:io';
+import 'package:flutter/foundation.dart';
+import 'package:pdf/pdf.dart';
+import 'package:pdf/widgets.dart' as pw;
+import 'package:intl/intl.dart';
+import 'package:path_provider/path_provider.dart';
+import 'package:open_filex/open_filex.dart';
+import 'package:universal_html/html.dart' as html;
+
+import '../models/user_profile.dart';
+import '../models/cycle_entry.dart';
+import '../theme/app_theme.dart';
+
+class PdfService {
+  static Future<void> generateCycleReport(UserProfile user, List<CycleEntry> entries) async {
+    final pdf = pw.Document();
+
+    final primaryColor = PdfColor.fromInt(AppColors.sageGreen.value);
+    final accentColor = PdfColor.fromInt(AppColors.rose.value);
+    final textColor = PdfColor.fromInt(AppColors.charcoal.value);
+
+    // Sort entries by date for the report
+    entries.sort((a, b) => a.date.compareTo(b.date));
+
+    pdf.addPage(
+      pw.MultiPage(
+        pageFormat: PdfPageFormat.a4,
+        build: (pw.Context context) => [
+          _buildHeader(user, primaryColor, accentColor, textColor),
+          pw.SizedBox(height: 20),
+          _buildCycleSummary(user, textColor),
+          pw.SizedBox(height: 20),
+          _buildEntriesTable(entries, primaryColor, textColor),
+        ],
+      ),
+    );
+
+    final String fileName = 'cycle_report_${DateFormat('yyyyMMdd').format(DateTime.now())}.pdf';
+
+    if (kIsWeb) {
+      // Web platform
+      final bytes = await pdf.save();
+      final blob = html.Blob([bytes], 'application/pdf');
+      final url = html.Url.createObjectUrlFromBlob(blob);
+      html.AnchorElement(href: url)
+        ..setAttribute('download', fileName)
+        ..click();
+      html.Url.revokeObjectUrl(url);
+    } else {
+      // Mobile platform
+      final directory = await getApplicationDocumentsDirectory();
+      final filePath = '${directory.path}/$fileName';
+      final file = File(filePath);
+      await file.writeAsBytes(await pdf.save());
+      await OpenFilex.open(filePath);
+    }
+  }
+
+  static pw.Widget _buildHeader(UserProfile user, PdfColor primaryColor, PdfColor accentColor, PdfColor textColor) {
+    return pw.Container(
+      padding: pw.EdgeInsets.all(10),
+      decoration: pw.BoxDecoration(
+        color: primaryColor.lighter(30),
+        borderRadius: pw.BorderRadius.circular(8),
+      ),
+      child: pw.Column(
+        crossAxisAlignment: pw.CrossAxisAlignment.start,
+        children: [
+          pw.Text(
+            'Cycle Report for ${user.name}',
+            style: pw.TextStyle(
+              fontSize: 24,
+              fontWeight: pw.FontWeight.bold,
+              color: primaryColor.isLight ? primaryColor.darker(50) : PdfColors.white,
+            ),
+          ),
+          pw.SizedBox(height: 5),
+          pw.Text(
+            'Generated on: ${DateFormat('MMMM d, yyyy').format(DateTime.now())}',
+            style: pw.TextStyle(fontSize: 12, color: primaryColor.isLight ? primaryColor.darker(30) : PdfColors.white.darker(10)),
+          ),
+        ],
+      ),
+    );
+  }
+
+  static pw.Widget _buildCycleSummary(UserProfile user, PdfColor textColor) {
+    return pw.Column(
+      crossAxisAlignment: pw.CrossAxisAlignment.start,
+      children: [
+        pw.Text(
+          'Summary',
+          style: pw.TextStyle(fontSize: 18, fontWeight: pw.FontWeight.bold, color: textColor),
+        ),
+        pw.SizedBox(height: 10),
+        pw.Text('Average Cycle Length: ${user.averageCycleLength} days', style: pw.TextStyle(color: textColor)),
+        pw.Text('Average Period Length: ${user.averagePeriodLength} days', style: pw.TextStyle(color: textColor)),
+        if (user.lastPeriodStartDate != null)
+          pw.Text('Last Period Start: ${DateFormat.yMMMMd().format(user.lastPeriodStartDate!)}', style: pw.TextStyle(color: textColor)),
+        pw.Text('Irregular Cycle: ${user.isIrregularCycle ? 'Yes' : 'No'}', style: pw.TextStyle(color: textColor)),
+      ],
+    );
+  }
+
+  static pw.Widget _buildEntriesTable(List<CycleEntry> entries, PdfColor primaryColor, PdfColor textColor) {
+    final headers = ['Date', 'Period', 'Mood', 'Symptoms', 'Notes'];
+
+    return pw.Table.fromTextArray(
+      headers: headers,
+      data: entries.map((entry) {
+        return [
+          DateFormat.yMMMd().format(entry.date),
+          entry.isPeriodDay ? 'Yes' : 'No',
+          entry.mood != null ? entry.mood!.label : 'N/A',
+          entry.hasSymptoms ? entry.symptomCount.toString() : 'No',
+          entry.notes != null && entry.notes!.isNotEmpty ? entry.notes! : 'N/A',
+        ];
+      }).toList(),
+      border: pw.TableBorder.all(color: primaryColor.lighter(10)),
+      headerStyle: pw.TextStyle(fontWeight: pw.FontWeight.bold, color: primaryColor),
+      cellStyle: pw.TextStyle(color: textColor),
+      cellAlignment: pw.Alignment.centerLeft,
+      headerDecoration: pw.BoxDecoration(color: primaryColor.lighter(20)),
+      rowDecoration: pw.BoxDecoration(color: PdfColors.grey100),
+      tableWidth: pw.TableWidth.min,
+    );
+  }
+}
+
+// Extension to determine if a color is light or dark for text contrast
+extension on PdfColor {
+  bool get isLight {
+    // Calculate luminance (Y from YIQ)
+    // Formula: Y = (R*299 + G*587 + B*114) / 1000
+    final r = red * 255;
+    final g = green * 255;
+    final b = blue * 255;
+    final luminance = (r * 299 + g * 587 + b * 114) / 1000;
+    return luminance > 128; // Using 128 as a threshold
+  }
+  
+  PdfColor lighter(int amount) {
+    double factor = 1 + (amount / 100.0);
+    return PdfColor(
+      red * factor > 1.0 ? 1.0 : red * factor,
+      green * factor > 1.0 ? 1.0 : green * factor,
+      blue * factor > 1.0 ? 1.0 : blue * factor,
+    );
+  }
+
+  PdfColor darker(int amount) {
+    double factor = 1 - (amount / 100.0);
+    return PdfColor(
+      red * factor < 0.0 ? 0.0 : red * factor,
+      green * factor < 0.0 ? 0.0 : green * factor,
+      blue * factor < 0.0 ? 0.0 : blue * factor,
+    );
+  }
+}

lib/theme/app_theme.dart

@@ -38,14 +38,14 @@ class AppColors {
 
 /// App theme configuration
 class AppTheme {
-  static ThemeData get lightTheme {
+  static ThemeData getLightTheme(Color accentColor) {
     return ThemeData(
       useMaterial3: true,
       brightness: Brightness.light,
 
       // Color Scheme
-      colorScheme: const ColorScheme.light(
+      colorScheme: ColorScheme.light(
-        primary: AppColors.sageGreen,
+        primary: accentColor,
         secondary: AppColors.rose,
         tertiary: AppColors.lavender,
         surface: AppColors.cream,
@@ -139,7 +139,7 @@ class AppTheme {
       // Button Themes
       elevatedButtonTheme: ElevatedButtonThemeData(
         style: ElevatedButton.styleFrom(
-          backgroundColor: AppColors.sageGreen,
+          backgroundColor: accentColor,
           foregroundColor: Colors.white,
           elevation: 2,
           padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 14),
@@ -155,8 +155,8 @@ class AppTheme {
 
       outlinedButtonTheme: OutlinedButtonThemeData(
         style: OutlinedButton.styleFrom(
-          foregroundColor: AppColors.sageGreen,
+          foregroundColor: accentColor,
-          side: const BorderSide(color: AppColors.sageGreen, width: 1.5),
+          side: BorderSide(color: accentColor, width: 1.5),
           padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 14),
           shape: RoundedRectangleBorder(
             borderRadius: BorderRadius.circular(12),
@@ -192,7 +192,7 @@ class AppTheme {
         ),
         focusedBorder: OutlineInputBorder(
           borderRadius: BorderRadius.circular(12),
-          borderSide: const BorderSide(color: AppColors.sageGreen, width: 2),
+          borderSide: BorderSide(color: accentColor, width: 2),
         ),
         contentPadding:
             const EdgeInsets.symmetric(horizontal: 16, vertical: 14),
@@ -205,7 +205,7 @@ class AppTheme {
       // Bottom Navigation
       bottomNavigationBarTheme: BottomNavigationBarThemeData(
         backgroundColor: Colors.white,
-        selectedItemColor: AppColors.sageGreen,
+        selectedItemColor: accentColor,
         unselectedItemColor: AppColors.warmGray,
         type: BottomNavigationBarType.fixed,
         elevation: 8,
@@ -220,18 +220,18 @@ class AppTheme {
       ),
 
       // Floating Action Button
-      floatingActionButtonTheme: const FloatingActionButtonThemeData(
+      floatingActionButtonTheme: FloatingActionButtonThemeData(
-        backgroundColor: AppColors.sageGreen,
+        backgroundColor: accentColor,
         foregroundColor: Colors.white,
         elevation: 4,
       ),
 
       // Slider Theme
       sliderTheme: SliderThemeData(
-        activeTrackColor: AppColors.sageGreen,
+        activeTrackColor: accentColor,
         inactiveTrackColor: AppColors.lightGray.withOpacity(0.3),
-        thumbColor: AppColors.sageGreen,
+        thumbColor: accentColor,
-        overlayColor: AppColors.sageGreen.withOpacity(0.2),
+        overlayColor: accentColor.withOpacity(0.2),
         trackHeight: 4,
       ),
 
@@ -244,14 +244,14 @@ class AppTheme {
     );
   }
 
-  static ThemeData get darkTheme {
+  static ThemeData getDarkTheme(Color accentColor) {
     return ThemeData(
       useMaterial3: true,
       brightness: Brightness.dark,
 
       // Color Scheme
       colorScheme: ColorScheme.dark(
-        primary: AppColors.sageGreen,
+        primary: accentColor,
         secondary: AppColors.rose,
         tertiary: AppColors.lavender,
         surface: const Color(0xFF1E1E1E),
@@ -348,7 +348,7 @@ class AppTheme {
       // Button Themes
       elevatedButtonTheme: ElevatedButtonThemeData(
         style: ElevatedButton.styleFrom(
-          backgroundColor: AppColors.sageGreen,
+          backgroundColor: accentColor,
           foregroundColor: Colors.white,
           elevation: 0,
           padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 14),
@@ -364,8 +364,8 @@ class AppTheme {
 
       outlinedButtonTheme: OutlinedButtonThemeData(
         style: OutlinedButton.styleFrom(
-          foregroundColor: AppColors.sageGreen,
+          foregroundColor: accentColor,
-          side: BorderSide(color: AppColors.sageGreen.withOpacity(0.5), width: 1.5),
+          side: BorderSide(color: accentColor.withOpacity(0.5), width: 1.5),
           padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 14),
           shape: RoundedRectangleBorder(
             borderRadius: BorderRadius.circular(12),
@@ -391,7 +391,7 @@ class AppTheme {
         ),
         focusedBorder: OutlineInputBorder(
           borderRadius: BorderRadius.circular(12),
-          borderSide: const BorderSide(color: AppColors.sageGreen, width: 2),
+          borderSide: BorderSide(color: accentColor, width: 2),
         ),
         contentPadding:
             const EdgeInsets.symmetric(horizontal: 16, vertical: 14),
@@ -404,7 +404,7 @@ class AppTheme {
       // Bottom Navigation
       bottomNavigationBarTheme: BottomNavigationBarThemeData(
         backgroundColor: const Color(0xFF1E1E1E),
-        selectedItemColor: AppColors.sageGreen,
+        selectedItemColor: accentColor,
         unselectedItemColor: Colors.white38,
         type: BottomNavigationBarType.fixed,
         elevation: 0,
@@ -420,10 +420,10 @@ class AppTheme {
 
       // Slider Theme
       sliderTheme: SliderThemeData(
-        activeTrackColor: AppColors.sageGreen,
+        activeTrackColor: accentColor,
         inactiveTrackColor: Colors.white.withOpacity(0.1),
-        thumbColor: AppColors.sageGreen,
+        thumbColor: accentColor,
-        overlayColor: AppColors.sageGreen.withOpacity(0.2),
+        overlayColor: accentColor.withOpacity(0.2),
         trackHeight: 4,
         tickMarkShape: const RoundSliderTickMarkShape(),
         activeTickMarkColor: Colors.white24,

linux/flutter/generated_plugin_registrant.cc

@@ -6,6 +6,10 @@
 
 #include "generated_plugin_registrant.h"
 
+#include <printing/printing_plugin.h>
 
 void fl_register_plugins(FlPluginRegistry* registry) {
+  g_autoptr(FlPluginRegistrar) printing_registrar =
+      fl_plugin_registry_get_registrar_for_plugin(registry, "PrintingPlugin");
+  printing_plugin_register_with_registrar(printing_registrar);
 }

linux/flutter/generated_plugins.cmake

@@ -3,6 +3,7 @@
 #
 
 list(APPEND FLUTTER_PLUGIN_LIST
+  printing
 )
 
 list(APPEND FLUTTER_FFI_PLUGIN_LIST

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -5,12 +5,16 @@
 import FlutterMacOS
 import Foundation
 
+import device_info_plus
 import flutter_local_notifications
 import path_provider_foundation
+import printing
 import shared_preferences_foundation
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
+  DeviceInfoPlusMacosPlugin.register(with: registry.registrar(forPlugin: "DeviceInfoPlusMacosPlugin"))
   FlutterLocalNotificationsPlugin.register(with: registry.registrar(forPlugin: "FlutterLocalNotificationsPlugin"))
   PathProviderPlugin.register(with: registry.registrar(forPlugin: "PathProviderPlugin"))
+  PrintingPlugin.register(with: registry.registrar(forPlugin: "PrintingPlugin"))
   SharedPreferencesPlugin.register(with: registry.registrar(forPlugin: "SharedPreferencesPlugin"))
 }

pubspec.lock

@@ -17,6 +17,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "6.4.1"
+  archive:
+    dependency: transitive
+    description:
+      name: archive
+      sha256: "2fde1607386ab523f7a36bb3e7edb43bd58e6edaf2ffb29d8a6d578b297fdbbd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.0.7"
   args:
     dependency: transitive
     description:
@@ -33,6 +41,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.11.0"
+  barcode:
+    dependency: transitive
+    description:
+      name: barcode
+      sha256: "7b6729c37e3b7f34233e2318d866e8c48ddb46c1f7ad01ff7bb2a8de1da2b9f4"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.9"
+  bidi:
+    dependency: transitive
+    description:
+      name: bidi
+      sha256: "77f475165e94b261745cf1032c751e2032b8ed92ccb2bf5716036db79320637d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.13"
   boolean_selector:
     dependency: transitive
     description:
@@ -105,6 +129,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "8.12.1"
+  carp_serializable:
+    dependency: transitive
+    description:
+      name: carp_serializable
+      sha256: f039f8ea22e9437aef13fe7e9743c3761c76d401288dcb702eadd273c3e4dcef
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.1"
   characters:
     dependency: transitive
     description:
@@ -113,6 +145,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.4.0"
+  charcode:
+    dependency: transitive
+    description:
+      name: charcode
+      sha256: fb0f1107cac15a5ea6ef0a6ef71a807b9e4267c713bb93e00e92d737cc8dbd8a
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.0"
   checked_yaml:
     dependency: transitive
     description:
@@ -161,6 +201,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.0.7"
+  csslib:
+    dependency: transitive
+    description:
+      name: csslib
+      sha256: "09bad715f418841f976c77db72d5398dc1253c21fb9c0c7f0b0b985860b2d58e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.2"
   cupertino_icons:
     dependency: "direct main"
     description:
@@ -185,6 +233,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.7.11"
+  device_info_plus:
+    dependency: transitive
+    description:
+      name: device_info_plus
+      sha256: "72d146c6d7098689ff5c5f66bcf593ac11efc530095385356e131070333e64da"
+      url: "https://pub.dev"
+    source: hosted
+    version: "11.3.0"
+  device_info_plus_platform_interface:
+    dependency: transitive
+    description:
+      name: device_info_plus_platform_interface
+      sha256: e1ea89119e34903dca74b883d0dd78eb762814f97fb6c76f35e9ff74d261a18f
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.3"
   equatable:
     dependency: transitive
     description:
@@ -328,6 +392,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.3.2"
+  health:
+    dependency: "direct main"
+    description:
+      name: health
+      sha256: "320633022fb2423178baa66508001c4ca5aee5806ffa2c913e66488081e9fd47"
+      url: "https://pub.dev"
+    source: hosted
+    version: "13.1.4"
   hive:
     dependency: "direct main"
     description:
@@ -352,6 +424,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.0.1"
+  html:
+    dependency: transitive
+    description:
+      name: html
+      sha256: "6d1264f2dffa1b1101c25a91dff0dc2daee4c18e87cd8538729773c073dbf602"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.15.6"
   http:
     dependency: transitive
     description:
@@ -376,6 +456,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.1.2"
+  icalendar_parser:
+    dependency: "direct main"
+    description:
+      name: icalendar_parser
+      sha256: "107f936d286723346660df88191888562fc44c2def46ed8858a301a4777ad821"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.0"
+  image:
+    dependency: transitive
+    description:
+      name: image
+      sha256: "4e973fcf4caae1a4be2fa0a13157aa38a8f9cb049db6529aa00b4d71abc4d928"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.5.4"
   intl:
     dependency: "direct main"
     description:
@@ -488,6 +584,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "5.4.4"
+  open_filex:
+    dependency: "direct main"
+    description:
+      name: open_filex
+      sha256: "9976da61b6a72302cf3b1efbce259200cd40232643a467aac7370addf94d6900"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.7.0"
   package_config:
     dependency: transitive
     description:
@@ -513,7 +617,7 @@ packages:
     source: hosted
     version: "1.1.0"
   path_provider:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: path_provider
       sha256: "50c5dd5b6e1aaf6fb3a78b33f6aa3afca52bf903a8a5298f53101fdaee55bbcd"
@@ -560,6 +664,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.3.0"
+  pdf:
+    dependency: "direct main"
+    description:
+      name: pdf
+      sha256: "28eacad99bffcce2e05bba24e50153890ad0255294f4dd78a17075a2ba5c8416"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.11.3"
+  pdf_widget_wrapper:
+    dependency: transitive
+    description:
+      name: pdf_widget_wrapper
+      sha256: c930860d987213a3d58c7ec3b7ecf8085c3897f773e8dc23da9cae60a5d6d0f5
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.4"
   petitparser:
     dependency: transitive
     description:
@@ -600,6 +720,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.5.2"
+  posix:
+    dependency: transitive
+    description:
+      name: posix
+      sha256: "6323a5b0fa688b6a010df4905a56b00181479e6d10534cecfecede2aa55add61"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.0.3"
+  printing:
+    dependency: "direct main"
+    description:
+      name: printing
+      sha256: "482cd5a5196008f984bb43ed0e47cbfdca7373490b62f3b27b3299275bf22a93"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.14.2"
   pub_semver:
     dependency: transitive
     description:
@@ -616,6 +752,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.5.0"
+  qr:
+    dependency: transitive
+    description:
+      name: qr
+      sha256: "5a1d2586170e172b8a8c8470bbbffd5eb0cd38a66c0d77155ea138d3af3a4445"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.2"
   riverpod:
     dependency: transitive
     description:
@@ -829,6 +973,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.4.0"
+  universal_html:
+    dependency: "direct main"
+    description:
+      name: universal_html
+      sha256: c0bcae5c733c60f26c7dfc88b10b0fd27cbcc45cb7492311cdaa6067e21c9cd4
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.0"
+  universal_io:
+    dependency: transitive
+    description:
+      name: universal_io
+      sha256: f63cbc48103236abf48e345e07a03ce5757ea86285ed313a6a032596ed9301e2
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.1"
   uuid:
     dependency: "direct main"
     description:
@@ -909,6 +1069,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.0.3"
+  win32:
+    dependency: transitive
+    description:
+      name: win32
+      sha256: "329edf97fdd893e0f1e3b9e88d6a0e627128cc17cc316a8d67fda8f1451178ba"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.13.0"
+  win32_registry:
+    dependency: transitive
+    description:
+      name: win32_registry
+      sha256: "21ec76dfc731550fd3e2ce7a33a9ea90b828fdf19a5c3bcf556fa992cfa99852"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.5"
   xdg_directories:
     dependency: transitive
     description:
@@ -934,5 +1110,5 @@ packages:
     source: hosted
     version: "3.1.3"
 sdks:
-  dart: ">=3.8.0-0 <4.0.0"
+  dart: ">=3.8.0 <4.0.0"
-  flutter: ">=3.27.0"
+  flutter: ">=3.29.0"

pubspec.yaml

@@ -38,6 +38,13 @@ dependencies:
   uuid: ^4.5.1
   shared_preferences: ^2.3.2
   xml: ^6.3.0 # Added for XML parsing
+  health: ^13.1.4 # For Health App integration
+  pdf: ^3.10.8 # For PDF generation
+  printing: ^5.12.0 # For printing and sharing PDF
+  path_provider: ^2.1.3 # For getting file paths
+  open_filex: ^4.3.2 # For opening files
+  universal_html: ^2.2.12 # For web downloads
+  icalendar_parser: ^2.0.0 # For .ics file generation
 
 dev_dependencies:
   flutter_test:

windows/flutter/generated_plugin_registrant.cc

@@ -6,6 +6,9 @@
 
 #include "generated_plugin_registrant.h"
 
+#include <printing/printing_plugin.h>
 
 void RegisterPlugins(flutter::PluginRegistry* registry) {
+  PrintingPluginRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("PrintingPlugin"));
 }

windows/flutter/generated_plugins.cmake

@@ -3,6 +3,7 @@
 #
 
 list(APPEND FLUTTER_PLUGIN_LIST
+  printing
 )
 
 list(APPEND FLUTTER_FFI_PLUGIN_LIST