diff --git a/lib/models/rotation_config.dart b/lib/models/rotation_config.dart
index ecfe27fa..9e8c74ab 100644
--- a/lib/models/rotation_config.dart
+++ b/lib/models/rotation_config.dart
@@ -5,16 +5,23 @@
 /// - Ordered list of non-Islam IT Staff IDs for Friday AM rotation
 /// - Set of excluded IT Staff IDs
 /// - Initial AM and PM duty assignments for the next generated schedule
+/// - Shift type definitions, role → shift type mappings, weekly hour caps
+/// - Holiday settings (national / custom)
 class RotationConfig {
   RotationConfig({
-    List<String>? rotationOrder,
-    List<String>? fridayAmOrder,
-    List<String>? excludedStaffIds,
+    this.rotationOrder = const [],
+    this.fridayAmOrder = const [],
+    this.excludedStaffIds = const [],
     this.initialAmStaffId,
     this.initialPmStaffId,
-  }) : rotationOrder = rotationOrder ?? [],
-       fridayAmOrder = fridayAmOrder ?? [],
-       excludedStaffIds = excludedStaffIds ?? [];
+    List<ShiftTypeConfig>? shiftTypes,
+    Map<String, int>? roleWeeklyHours,
+    List<Holiday>? holidays,
+    this.syncPhilippinesHolidays = false,
+    this.holidaysYear,
+  }) : shiftTypes = shiftTypes ?? _defaultShiftTypes(),
+       roleWeeklyHours = roleWeeklyHours ?? {},
+       holidays = holidays ?? [];
 
   /// Ordered IDs for standard AM/PM rotation.
   final List<String> rotationOrder;
@@ -33,6 +40,21 @@ class RotationConfig {
   /// generated schedule. `null` means "continue from last week".
   final String? initialPmStaffId;
 
+  /// Configured shift types with their time definitions and allowed roles.
+  final List<ShiftTypeConfig> shiftTypes;
+
+  /// Weekly hour cap per role (e.g. { 'it_staff': 40 }).
+  final Map<String, int> roleWeeklyHours;
+
+  /// Holidays to render/flag in the schedule. Includes both synced and local.
+  final List<Holiday> holidays;
+
+  /// Whether Philippine national holiday sync is enabled.
+  final bool syncPhilippinesHolidays;
+
+  /// The year used for the last synced holidays. Null means none synced.
+  final int? holidaysYear;
+
   factory RotationConfig.fromJson(Map<String, dynamic> json) {
     return RotationConfig(
       rotationOrder: _toStringList(json['rotation_order']),
@@ -40,6 +62,12 @@ class RotationConfig {
       excludedStaffIds: _toStringList(json['excluded_staff_ids']),
       initialAmStaffId: json['initial_am_staff_id'] as String?,
       initialPmStaffId: json['initial_pm_staff_id'] as String?,
+      shiftTypes: _toShiftTypes(json['shift_types']),
+      roleWeeklyHours: _toStringIntMap(json['role_weekly_hours']),
+      holidays: _toHolidays(json['holidays']),
+      syncPhilippinesHolidays:
+          json['sync_philippines_holidays'] as bool? ?? false,
+      holidaysYear: json['holidays_year'] as int?,
     );
   }
 
@@ -49,6 +77,11 @@ class RotationConfig {
     'excluded_staff_ids': excludedStaffIds,
     'initial_am_staff_id': initialAmStaffId,
     'initial_pm_staff_id': initialPmStaffId,
+    'shift_types': shiftTypes.map((e) => e.toJson()).toList(),
+    'role_weekly_hours': roleWeeklyHours,
+    'holidays': holidays.map((e) => e.toJson()).toList(),
+    'sync_philippines_holidays': syncPhilippinesHolidays,
+    'holidays_year': holidaysYear,
   };
 
   RotationConfig copyWith({
@@ -59,6 +92,11 @@ class RotationConfig {
     String? initialPmStaffId,
     bool clearInitialAm = false,
     bool clearInitialPm = false,
+    List<ShiftTypeConfig>? shiftTypes,
+    Map<String, int>? roleWeeklyHours,
+    List<Holiday>? holidays,
+    bool? syncPhilippinesHolidays,
+    int? holidaysYear,
   }) {
     return RotationConfig(
       rotationOrder: rotationOrder ?? this.rotationOrder,
@@ -70,11 +108,224 @@ class RotationConfig {
       initialPmStaffId: clearInitialPm
           ? null
           : (initialPmStaffId ?? this.initialPmStaffId),
+      shiftTypes: shiftTypes ?? this.shiftTypes,
+      roleWeeklyHours: roleWeeklyHours ?? this.roleWeeklyHours,
+      holidays: holidays ?? this.holidays,
+      syncPhilippinesHolidays:
+          syncPhilippinesHolidays ?? this.syncPhilippinesHolidays,
+      holidaysYear: holidaysYear ?? this.holidaysYear,
     );
   }
 
+  static List<ShiftTypeConfig> _defaultShiftTypes() {
+    return const [
+      ShiftTypeConfig(
+        id: 'am',
+        label: 'AM Duty',
+        startHour: 7,
+        startMinute: 0,
+        durationMinutes: 8 * 60,
+        allowedRoles: ['it_staff'],
+      ),
+      ShiftTypeConfig(
+        id: 'pm',
+        label: 'PM Duty',
+        startHour: 15,
+        startMinute: 0,
+        durationMinutes: 8 * 60,
+        allowedRoles: ['it_staff'],
+      ),
+      ShiftTypeConfig(
+        id: 'on_call',
+        label: 'On Call',
+        startHour: 23,
+        startMinute: 0,
+        durationMinutes: 8 * 60,
+        allowedRoles: ['it_staff'],
+      ),
+      ShiftTypeConfig(
+        id: 'on_call_saturday',
+        label: 'On Call (Saturday)',
+        startHour: 17,
+        startMinute: 0,
+        durationMinutes: 15 * 60,
+        allowedRoles: ['it_staff'],
+      ),
+      ShiftTypeConfig(
+        id: 'on_call_sunday',
+        label: 'On Call (Sunday)',
+        startHour: 17,
+        startMinute: 0,
+        durationMinutes: 14 * 60,
+        allowedRoles: ['it_staff'],
+      ),
+      ShiftTypeConfig(
+        id: 'normal',
+        label: 'Normal',
+        startHour: 8,
+        startMinute: 0,
+        durationMinutes: 9 * 60,
+        allowedRoles: ['admin', 'dispatcher', 'programmer', 'it_staff'],
+      ),
+      ShiftTypeConfig(
+        id: 'normal_ramadan_islam',
+        label: 'Normal (Ramadan - Islam)',
+        startHour: 8,
+        startMinute: 0,
+        durationMinutes: 8 * 60,
+        allowedRoles: ['admin', 'dispatcher', 'programmer', 'it_staff'],
+      ),
+      ShiftTypeConfig(
+        id: 'normal_ramadan_other',
+        label: 'Normal (Ramadan - Other)',
+        startHour: 8,
+        startMinute: 0,
+        durationMinutes: 9 * 60,
+        allowedRoles: ['admin', 'dispatcher', 'programmer', 'it_staff'],
+      ),
+    ];
+  }
+
   static List<String> _toStringList(dynamic value) {
     if (value is List) return value.map((e) => e.toString()).toList();
     return [];
   }
+
+  static List<ShiftTypeConfig> _toShiftTypes(dynamic value) {
+    if (value is List) {
+      return value
+          .whereType<Map<String, dynamic>>()
+          .map(ShiftTypeConfig.fromJson)
+          .toList();
+    }
+    return _defaultShiftTypes();
+  }
+
+  static Map<String, int> _toStringIntMap(dynamic value) {
+    if (value is Map) {
+      return value.map((key, val) {
+        final intVal = val is int
+            ? val
+            : int.tryParse(val?.toString() ?? '') ?? 0;
+        return MapEntry(key.toString(), intVal);
+      });
+    }
+    return {};
+  }
+
+  static List<Holiday> _toHolidays(dynamic value) {
+    if (value is List) {
+      return value
+          .whereType<Map<String, dynamic>>()
+          .map(Holiday.fromJson)
+          .toList();
+    }
+    return [];
+  }
+}
+
+/// A configurable shift type used by the schedule generator.
+class ShiftTypeConfig {
+  const ShiftTypeConfig({
+    required this.id,
+    required this.label,
+    required this.startHour,
+    required this.startMinute,
+    required this.durationMinutes,
+    this.noonBreakMinutes = 60,
+    this.allowedRoles = const [],
+  });
+
+  /// Unique shift type ID (e.g. "am", "pm", "on_call").
+  final String id;
+
+  /// Human-readable label (e.g. "AM Duty").
+  final String label;
+
+  /// Hour of day (0-23) when this shift begins.
+  final int startHour;
+
+  /// Minute (0-59) when this shift begins.
+  final int startMinute;
+
+  /// Duration in minutes.
+  final int durationMinutes;
+
+  /// Minutes reserved for a noon/meal break during the shift.
+  final int noonBreakMinutes;
+
+  /// Roles that are allowed to be assigned this shift type.
+  final List<String> allowedRoles;
+
+  Duration get duration => Duration(minutes: durationMinutes);
+
+  Map<String, dynamic> toJson() => {
+    'id': id,
+    'label': label,
+    'start_hour': startHour,
+    'start_minute': startMinute,
+    'duration_minutes': durationMinutes,
+    'noon_break_minutes': noonBreakMinutes,
+    'allowed_roles': allowedRoles,
+  };
+
+  factory ShiftTypeConfig.fromJson(Map<String, dynamic> json) {
+    return ShiftTypeConfig(
+      id: json['id'] as String,
+      label: json['label'] as String? ?? json['id'] as String,
+      startHour: json['start_hour'] is int
+          ? json['start_hour'] as int
+          : int.tryParse(json['start_hour']?.toString() ?? '') ?? 0,
+      startMinute: json['start_minute'] is int
+          ? json['start_minute'] as int
+          : int.tryParse(json['start_minute']?.toString() ?? '') ?? 0,
+      durationMinutes: json['duration_minutes'] is int
+          ? json['duration_minutes'] as int
+          : int.tryParse(json['duration_minutes']?.toString() ?? '') ?? 0,
+      noonBreakMinutes: json['noon_break_minutes'] is int
+          ? json['noon_break_minutes'] as int
+          : int.tryParse(json['noon_break_minutes']?.toString() ?? '') ?? 60,
+      allowedRoles: json['allowed_roles'] is List
+          ? (json['allowed_roles'] as List).map((e) => e.toString()).toList()
+          : [],
+    );
+  }
+}
+
+/// A holiday used to flag schedule days.
+class Holiday {
+  Holiday({required this.date, required this.name, this.source});
+
+  /// Date of the holiday (only date portion is used).
+  final DateTime date;
+
+  /// Holiday name (e.g. "Independence Day").
+  final String name;
+
+  /// Optional source (e.g. "nager") to distinguish synced vs custom.
+  final String? source;
+
+  Map<String, dynamic> toJson() => {
+    'date': date.toIso8601String(),
+    'name': name,
+    'source': source,
+  };
+
+  factory Holiday.fromJson(Map<String, dynamic> json) {
+    final dateRaw = json['date'];
+    DateTime date;
+    if (dateRaw is String) {
+      date = DateTime.parse(dateRaw);
+    } else if (dateRaw is DateTime) {
+      date = dateRaw;
+    } else {
+      date = DateTime.now();
+    }
+
+    return Holiday(
+      date: DateTime(date.year, date.month, date.day),
+      name: json['name'] as String? ?? 'Holiday',
+      source: json['source'] as String?,
+    );
+  }
 }
diff --git a/lib/providers/rotation_config_provider.dart b/lib/providers/rotation_config_provider.dart
index 7b12142c..ff4f9b34 100644
--- a/lib/providers/rotation_config_provider.dart
+++ b/lib/providers/rotation_config_provider.dart
@@ -48,4 +48,34 @@ class RotationConfigController {
     });
     _ref.invalidate(rotationConfigProvider);
   }
+
+  Future<void> updateShiftTypes(List<ShiftTypeConfig> shiftTypes) async {
+    final config = await _ref.read(rotationConfigProvider.future);
+    await save(config.copyWith(shiftTypes: shiftTypes));
+  }
+
+  Future<void> updateRoleWeeklyHours(Map<String, int> roleWeeklyHours) async {
+    final config = await _ref.read(rotationConfigProvider.future);
+    await save(config.copyWith(roleWeeklyHours: roleWeeklyHours));
+  }
+
+  Future<void> updateHolidays(List<Holiday> holidays) async {
+    final config = await _ref.read(rotationConfigProvider.future);
+    await save(config.copyWith(holidays: holidays));
+  }
+
+  Future<void> setHolidaySync({
+    required bool enabled,
+    required int year,
+    required List<Holiday> holidays,
+  }) async {
+    final config = await _ref.read(rotationConfigProvider.future);
+    await save(
+      config.copyWith(
+        syncPhilippinesHolidays: enabled,
+        holidaysYear: year,
+        holidays: holidays,
+      ),
+    );
+  }
 }
diff --git a/lib/screens/workforce/rotation_settings_dialog.dart b/lib/screens/workforce/rotation_settings_dialog.dart
index 5d108718..8966fe10 100644
--- a/lib/screens/workforce/rotation_settings_dialog.dart
+++ b/lib/screens/workforce/rotation_settings_dialog.dart
@@ -7,6 +7,8 @@ import '../../providers/profile_provider.dart';
 import '../../providers/rotation_config_provider.dart';
 import '../../theme/app_surfaces.dart';
 import '../../theme/m3_motion.dart';
+import '../../services/holidays_service.dart';
+import '../../utils/app_time.dart';
 import '../../utils/snackbar.dart';
 
 /// Opens rotation settings as a dialog (desktop/tablet) or bottom sheet
@@ -53,7 +55,7 @@ class _RotationSettingsDialogState
   @override
   void initState() {
     super.initState();
-    _tabCtrl = TabController(length: 4, vsync: this);
+    _tabCtrl = TabController(length: 6, vsync: this);
   }
 
   @override
@@ -83,6 +85,8 @@ class _RotationSettingsDialogState
                 Tab(text: 'Friday AM'),
                 Tab(text: 'Excluded'),
                 Tab(text: 'Initial Duty'),
+                Tab(text: 'Shift Types'),
+                Tab(text: 'Holidays'),
               ],
             ),
             Flexible(
@@ -93,6 +97,8 @@ class _RotationSettingsDialogState
                   _FridayAmTab(),
                   _ExcludedTab(),
                   _InitialDutyTab(),
+                  _ShiftTypesTab(),
+                  _HolidaySettingsTab(),
                 ],
               ),
             ),
@@ -148,7 +154,7 @@ class _RotationSettingsSheetState extends ConsumerState<_RotationSettingsSheet>
   @override
   void initState() {
     super.initState();
-    _tabCtrl = TabController(length: 4, vsync: this);
+    _tabCtrl = TabController(length: 6, vsync: this);
   }
 
   @override
@@ -192,6 +198,8 @@ class _RotationSettingsSheetState extends ConsumerState<_RotationSettingsSheet>
             Tab(text: 'Friday AM'),
             Tab(text: 'Excluded'),
             Tab(text: 'Initial Duty'),
+            Tab(text: 'Shift Types'),
+            Tab(text: 'Holidays'),
           ],
         ),
         Expanded(
@@ -202,6 +210,8 @@ class _RotationSettingsSheetState extends ConsumerState<_RotationSettingsSheet>
               _FridayAmTab(),
               _ExcludedTab(),
               _InitialDutyTab(),
+              _ShiftTypesTab(),
+              _HolidaySettingsTab(),
             ],
           ),
         ),
@@ -795,20 +805,643 @@ class _SaveButton extends StatelessWidget {
   Widget build(BuildContext context) {
     return Padding(
       padding: const EdgeInsets.fromLTRB(16, 8, 16, 16),
-      child: SizedBox(
-        width: double.infinity,
-        child: FilledButton.icon(
-          onPressed: saving ? null : onSave,
-          icon: saving
-              ? const SizedBox(
-                  height: 18,
-                  width: 18,
-                  child: CircularProgressIndicator(strokeWidth: 2),
-                )
-              : const Icon(Icons.save_outlined),
-          label: const Text('Save'),
-        ),
+      child: FilledButton.icon(
+        onPressed: saving ? null : onSave,
+        icon: saving
+            ? const SizedBox(
+                height: 18,
+                width: 18,
+                child: CircularProgressIndicator(strokeWidth: 2),
+              )
+            : const Icon(Icons.save_outlined),
+        label: const Text('Save'),
       ),
     );
   }
 }
+
+// ═══════════════════════════════════════════════════════════════
+// Tab 5: Shift Types (configurable shift type definitions & role mapping)
+// ═══════════════════════════════════════════════════════════════
+class _ShiftTypesTab extends ConsumerStatefulWidget {
+  const _ShiftTypesTab();
+
+  @override
+  ConsumerState<_ShiftTypesTab> createState() => _ShiftTypesTabState();
+}
+
+class _ShiftTypesTabState extends ConsumerState<_ShiftTypesTab> {
+  List<ShiftTypeConfig>? _shiftTypes;
+  Map<String, int> _weeklyHours = {};
+  bool _saving = false;
+
+  static const _knownRoles = [
+    'it_staff',
+    'admin',
+    'dispatcher',
+    'programmer',
+    'standard',
+  ];
+
+  void _ensureLoaded() {
+    if (_shiftTypes != null) return;
+    final config = ref.read(rotationConfigProvider).valueOrNull;
+
+    // The default rotation config uses const shift type definitions.
+    // Make a mutable copy so the UI can edit allowedRoles safely.
+    final baseShiftTypes = config?.shiftTypes ?? RotationConfig().shiftTypes;
+    _shiftTypes = baseShiftTypes
+        .map(
+          (s) => ShiftTypeConfig(
+            id: s.id,
+            label: s.label,
+            startHour: s.startHour,
+            startMinute: s.startMinute,
+            durationMinutes: s.durationMinutes,
+            allowedRoles: List<String>.from(s.allowedRoles),
+          ),
+        )
+        .toList();
+
+    _weeklyHours = config?.roleWeeklyHours ?? {};
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final configAsync = ref.watch(rotationConfigProvider);
+    if (configAsync.isLoading) {
+      return const Center(child: CircularProgressIndicator());
+    }
+
+    _ensureLoaded();
+
+    return Column(
+      children: [
+        Padding(
+          padding: const EdgeInsets.fromLTRB(16, 16, 16, 0),
+          child: Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              Text(
+                'Weekly hours per role (hard cap). Leave blank for no limit.',
+                style: Theme.of(context).textTheme.bodySmall?.copyWith(
+                  color: Theme.of(context).colorScheme.onSurfaceVariant,
+                ),
+              ),
+              const SizedBox(height: 8),
+              Wrap(
+                spacing: 12,
+                runSpacing: 12,
+                children: [
+                  for (final role in _knownRoles)
+                    SizedBox(
+                      width: 140,
+                      child: TextFormField(
+                        initialValue: _weeklyHours[role]?.toString() ?? '',
+                        decoration: InputDecoration(
+                          labelText: role,
+                          border: const OutlineInputBorder(),
+                        ),
+                        keyboardType: TextInputType.number,
+                        onChanged: (value) {
+                          final hours = int.tryParse(value);
+                          setState(() {
+                            if (hours != null) {
+                              _weeklyHours[role] = hours;
+                            } else {
+                              _weeklyHours.remove(role);
+                            }
+                          });
+                        },
+                      ),
+                    ),
+                ],
+              ),
+              const SizedBox(height: 16),
+            ],
+          ),
+        ),
+        Expanded(
+          child: ListView.separated(
+            padding: const EdgeInsets.all(16),
+            itemCount: _shiftTypes!.length,
+            separatorBuilder: (context, index) => const Divider(),
+            itemBuilder: (context, index) {
+              final shift = _shiftTypes![index];
+              final startTime = TimeOfDay(
+                hour: shift.startHour,
+                minute: shift.startMinute,
+              );
+              return ExpansionTile(
+                key: ValueKey(shift.id),
+                title: Text(shift.label),
+                subtitle: Text('ID: ${shift.id}'),
+                children: [
+                  Padding(
+                    padding: const EdgeInsets.symmetric(horizontal: 16),
+                    child: Column(
+                      crossAxisAlignment: CrossAxisAlignment.start,
+                      children: [
+                        const SizedBox(height: 8),
+                        Row(
+                          children: [
+                            Expanded(
+                              child: Text(
+                                'Start: ${startTime.format(context)}',
+                              ),
+                            ),
+                            Expanded(
+                              child: Text(
+                                'Duration: ${shift.durationMinutes ~/ 60}h ${shift.durationMinutes % 60}m',
+                              ),
+                            ),
+                          ],
+                        ),
+                        const SizedBox(height: 8),
+                        Text(
+                          'Allowed roles',
+                          style: Theme.of(context).textTheme.labelLarge,
+                        ),
+                        const SizedBox(height: 8),
+                        Wrap(
+                          spacing: 8,
+                          runSpacing: 8,
+                          children: [
+                            for (final role in _knownRoles)
+                              FilterChip(
+                                label: Text(role),
+                                selected: shift.allowedRoles.contains(role),
+                                onSelected: (selected) {
+                                  setState(() {
+                                    if (selected) {
+                                      shift.allowedRoles.add(role);
+                                    } else {
+                                      shift.allowedRoles.remove(role);
+                                    }
+                                  });
+                                },
+                              ),
+                          ],
+                        ),
+                        const SizedBox(height: 8),
+                        Row(
+                          children: [
+                            OutlinedButton.icon(
+                              onPressed: () => _editShiftType(context, index),
+                              icon: const Icon(Icons.edit, size: 18),
+                              label: const Text('Edit'),
+                            ),
+                            const SizedBox(width: 12),
+                            OutlinedButton.icon(
+                              onPressed: () => _removeShiftType(index),
+                              icon: const Icon(Icons.delete_outline, size: 18),
+                              label: const Text('Delete'),
+                            ),
+                          ],
+                        ),
+                        const SizedBox(height: 12),
+                      ],
+                    ),
+                  ),
+                ],
+              );
+            },
+          ),
+        ),
+        Padding(
+          padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+          child: Row(
+            children: [
+              OutlinedButton.icon(
+                onPressed: _addShiftType,
+                icon: const Icon(Icons.add),
+                label: const Text('Add shift type'),
+              ),
+              const Spacer(),
+              _SaveButton(saving: _saving, onSave: () => _save(context)),
+            ],
+          ),
+        ),
+      ],
+    );
+  }
+
+  Future<void> _addShiftType() async {
+    final newShift = ShiftTypeConfig(
+      id: 'new_shift_${DateTime.now().millisecondsSinceEpoch}',
+      label: 'New Shift',
+      startHour: 8,
+      startMinute: 0,
+      durationMinutes: 480,
+      noonBreakMinutes: 60,
+      allowedRoles: <String>[],
+    );
+    setState(() {
+      _shiftTypes = [...?_shiftTypes, newShift];
+    });
+    await _editShiftType(context, _shiftTypes!.length - 1);
+  }
+
+  Future<void> _removeShiftType(int index) async {
+    setState(() {
+      _shiftTypes = [...?_shiftTypes]..removeAt(index);
+    });
+  }
+
+  Future<void> _editShiftType(BuildContext context, int index) async {
+    final shift = _shiftTypes![index];
+    var label = shift.label;
+    var start = TimeOfDay(hour: shift.startHour, minute: shift.startMinute);
+    var durationMinutes = shift.durationMinutes;
+    var noonBreakMinutes = shift.noonBreakMinutes;
+
+    final confirmed = await m3ShowDialog<bool>(
+      context: context,
+      builder: (dialogContext) {
+        return StatefulBuilder(
+          builder: (context, setState) {
+            return AlertDialog(
+              shape: AppSurfaces.of(context).dialogShape,
+              title: const Text('Edit Shift Type'),
+              content: SingleChildScrollView(
+                child: Column(
+                  mainAxisSize: MainAxisSize.min,
+                  children: [
+                    TextFormField(
+                      initialValue: label,
+                      decoration: const InputDecoration(labelText: 'Label'),
+                      onChanged: (v) => setState(() => label = v),
+                    ),
+                    const SizedBox(height: 12),
+                    InkWell(
+                      onTap: () async {
+                        final picked = await showTimePicker(
+                          context: context,
+                          initialTime: start,
+                        );
+                        if (picked != null) setState(() => start = picked);
+                      },
+                      child: InputDecorator(
+                        decoration: const InputDecoration(
+                          labelText: 'Start time',
+                        ),
+                        child: Text(start.format(context)),
+                      ),
+                    ),
+                    const SizedBox(height: 12),
+                    Row(
+                      children: [
+                        Expanded(
+                          child: TextFormField(
+                            initialValue: (durationMinutes ~/ 60).toString(),
+                            decoration: const InputDecoration(
+                              labelText: 'Hours (total)',
+                            ),
+                            keyboardType: TextInputType.number,
+                            onChanged: (v) {
+                              final h = int.tryParse(v) ?? 0;
+                              setState(() {
+                                durationMinutes =
+                                    h * 60 + (durationMinutes % 60);
+                              });
+                            },
+                          ),
+                        ),
+                        const SizedBox(width: 12),
+                        Expanded(
+                          child: TextFormField(
+                            initialValue: (durationMinutes % 60).toString(),
+                            decoration: const InputDecoration(
+                              labelText: 'Minutes',
+                            ),
+                            keyboardType: TextInputType.number,
+                            onChanged: (v) {
+                              final m = int.tryParse(v) ?? 0;
+                              setState(() {
+                                durationMinutes =
+                                    (durationMinutes ~/ 60) * 60 + m;
+                              });
+                            },
+                          ),
+                        ),
+                      ],
+                    ),
+                    const SizedBox(height: 12),
+                    TextFormField(
+                      initialValue: noonBreakMinutes.toString(),
+                      decoration: const InputDecoration(
+                        labelText: 'Noon break (minutes)',
+                      ),
+                      keyboardType: TextInputType.number,
+                      onChanged: (v) {
+                        final m = int.tryParse(v) ?? 0;
+                        setState(() {
+                          noonBreakMinutes = m;
+                        });
+                      },
+                    ),
+                  ],
+                ),
+              ),
+              actions: [
+                TextButton(
+                  onPressed: () => Navigator.of(dialogContext).pop(false),
+                  child: const Text('Cancel'),
+                ),
+                FilledButton(
+                  onPressed: () => Navigator.of(dialogContext).pop(true),
+                  child: const Text('Save'),
+                ),
+              ],
+            );
+          },
+        );
+      },
+    );
+
+    if (confirmed != true) return;
+
+    setState(() {
+      _shiftTypes = [...?_shiftTypes];
+      _shiftTypes![index] = ShiftTypeConfig(
+        id: shift.id,
+        label: label,
+        startHour: start.hour,
+        startMinute: start.minute,
+        durationMinutes: durationMinutes,
+        noonBreakMinutes: noonBreakMinutes,
+        allowedRoles: shift.allowedRoles,
+      );
+    });
+  }
+
+  Future<void> _save(BuildContext context) async {
+    final ctx = context;
+    setState(() => _saving = true);
+    try {
+      await ref
+          .read(rotationConfigControllerProvider)
+          .updateShiftTypes(_shiftTypes!);
+      await ref
+          .read(rotationConfigControllerProvider)
+          .updateRoleWeeklyHours(_weeklyHours);
+      if (mounted) {
+        // ignore: use_build_context_synchronously
+        showSuccessSnackBar(ctx, 'Shift types saved.');
+      }
+    } catch (e) {
+      if (mounted) {
+        // ignore: use_build_context_synchronously
+        showErrorSnackBar(ctx, 'Save failed: $e');
+      }
+    } finally {
+      if (mounted) setState(() => _saving = false);
+    }
+  }
+}
+
+// ═══════════════════════════════════════════════════════════════
+// Tab 6: Holiday settings (sync + custom holidays)
+// ═══════════════════════════════════════════════════════════════
+class _HolidaySettingsTab extends ConsumerStatefulWidget {
+  const _HolidaySettingsTab();
+
+  @override
+  ConsumerState<_HolidaySettingsTab> createState() =>
+      _HolidaySettingsTabState();
+}
+
+class _HolidaySettingsTabState extends ConsumerState<_HolidaySettingsTab> {
+  bool _syncEnabled = false;
+  int _year = DateTime.now().year;
+  bool _saving = false;
+  List<Holiday> _holidays = [];
+  bool _loaded = false;
+
+  void _ensureLoaded() {
+    if (_loaded) return;
+    final config = ref.read(rotationConfigProvider).valueOrNull;
+    _holidays = config?.holidays ?? [];
+    _syncEnabled = config?.syncPhilippinesHolidays ?? false;
+    _year = config?.holidaysYear ?? DateTime.now().year;
+    _loaded = true;
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final configAsync = ref.watch(rotationConfigProvider);
+    if (configAsync.isLoading) {
+      return const Center(child: CircularProgressIndicator());
+    }
+
+    _ensureLoaded();
+
+    return Column(
+      children: [
+        Padding(
+          padding: const EdgeInsets.all(16),
+          child: Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              Text(
+                'Holidays are used to flag shifts that occur on special dates. '
+                'You can sync Philippine national holidays or add custom dates.',
+                style: Theme.of(context).textTheme.bodySmall?.copyWith(
+                  color: Theme.of(context).colorScheme.onSurfaceVariant,
+                ),
+              ),
+              const SizedBox(height: 12),
+              Row(
+                children: [
+                  Expanded(
+                    child: SwitchListTile(
+                      value: _syncEnabled,
+                      title: const Text('Sync Philippine holidays'),
+                      onChanged: (value) => setState(() {
+                        _syncEnabled = value;
+                      }),
+                    ),
+                  ),
+                  const SizedBox(width: 12),
+                  SizedBox(
+                    width: 120,
+                    child: TextFormField(
+                      initialValue: _year.toString(),
+                      decoration: const InputDecoration(labelText: 'Year'),
+                      keyboardType: TextInputType.number,
+                      onChanged: (value) {
+                        final parsed = int.tryParse(value);
+                        if (parsed != null) {
+                          setState(() => _year = parsed);
+                        }
+                      },
+                    ),
+                  ),
+                ],
+              ),
+              const SizedBox(height: 8),
+              Row(
+                children: [
+                  FilledButton(
+                    onPressed: _syncEnabled ? _syncHolidays : null,
+                    child: const Text('Sync now'),
+                  ),
+                  const SizedBox(width: 12),
+                  OutlinedButton(
+                    onPressed: _addCustomHoliday,
+                    child: const Text('Add custom holiday'),
+                  ),
+                ],
+              ),
+            ],
+          ),
+        ),
+        const Divider(height: 1),
+        Expanded(
+          child: ListView.separated(
+            padding: const EdgeInsets.all(16),
+            itemCount: _holidays.length,
+            separatorBuilder: (context, index) => const Divider(),
+            itemBuilder: (context, index) {
+              final holiday = _holidays[index];
+              return ListTile(
+                title: Text(holiday.name),
+                subtitle: Text(AppTime.formatDate(holiday.date)),
+                trailing: IconButton(
+                  icon: const Icon(Icons.delete_outline),
+                  onPressed: () => _removeHoliday(index),
+                ),
+              );
+            },
+          ),
+        ),
+        _SaveButton(saving: _saving, onSave: () => _save(context)),
+      ],
+    );
+  }
+
+  Future<void> _syncHolidays() async {
+    final ctx = context;
+    setState(() => _saving = true);
+    try {
+      final holidays = await HolidaysService.fetchPhilippinesHolidays(_year);
+      setState(() {
+        _holidays = holidays;
+      });
+      await ref
+          .read(rotationConfigControllerProvider)
+          .setHolidaySync(
+            enabled: _syncEnabled,
+            year: _year,
+            holidays: _holidays,
+          );
+      if (mounted) {
+        // ignore: use_build_context_synchronously
+        showSuccessSnackBar(ctx, 'Holidays synced for $_year.');
+      }
+    } catch (e) {
+      if (mounted) {
+        // ignore: use_build_context_synchronously
+        showErrorSnackBar(ctx, 'Sync failed: $e');
+      }
+    } finally {
+      if (mounted) setState(() => _saving = false);
+    }
+  }
+
+  Future<void> _addCustomHoliday() async {
+    DateTime selectedDate = DateTime.now();
+    String name = '';
+
+    final confirmed = await m3ShowDialog<bool>(
+      context: context,
+      builder: (dialogContext) {
+        return StatefulBuilder(
+          builder: (context, setState) {
+            return AlertDialog(
+              shape: AppSurfaces.of(context).dialogShape,
+              title: const Text('Add custom holiday'),
+              content: Column(
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  InkWell(
+                    onTap: () async {
+                      final picked = await showDatePicker(
+                        context: context,
+                        initialDate: selectedDate,
+                        firstDate: DateTime(2000),
+                        lastDate: DateTime(2100),
+                      );
+                      if (picked != null) {
+                        setState(() => selectedDate = picked);
+                      }
+                    },
+                    child: InputDecorator(
+                      decoration: const InputDecoration(labelText: 'Date'),
+                      child: Text(AppTime.formatDate(selectedDate)),
+                    ),
+                  ),
+                  const SizedBox(height: 12),
+                  TextFormField(
+                    decoration: const InputDecoration(labelText: 'Name'),
+                    onChanged: (value) => setState(() => name = value),
+                  ),
+                ],
+              ),
+              actions: [
+                TextButton(
+                  onPressed: () => Navigator.of(dialogContext).pop(false),
+                  child: const Text('Cancel'),
+                ),
+                FilledButton(
+                  onPressed: () => Navigator.of(dialogContext).pop(true),
+                  child: const Text('Add'),
+                ),
+              ],
+            );
+          },
+        );
+      },
+    );
+
+    if (confirmed != true || name.isEmpty) return;
+
+    setState(() {
+      _holidays = [
+        ..._holidays,
+        Holiday(date: selectedDate, name: name, source: 'custom'),
+      ];
+    });
+  }
+
+  void _removeHoliday(int index) {
+    setState(() {
+      _holidays = [..._holidays]..removeAt(index);
+    });
+  }
+
+  Future<void> _save(BuildContext context) async {
+    final ctx = context;
+    setState(() => _saving = true);
+    try {
+      await ref
+          .read(rotationConfigControllerProvider)
+          .setHolidaySync(
+            enabled: _syncEnabled,
+            year: _year,
+            holidays: _holidays,
+          );
+      if (mounted) {
+        // ignore: use_build_context_synchronously
+        showSuccessSnackBar(ctx, 'Holidays saved.');
+      }
+    } catch (e) {
+      if (mounted) {
+        // ignore: use_build_context_synchronously
+        showErrorSnackBar(ctx, 'Save failed: $e');
+      }
+    } finally {
+      if (mounted) setState(() => _saving = false);
+    }
+  }
+}
diff --git a/lib/screens/workforce/workforce_screen.dart b/lib/screens/workforce/workforce_screen.dart
index 28840baf..05ef472a 100644
--- a/lib/screens/workforce/workforce_screen.dart
+++ b/lib/screens/workforce/workforce_screen.dart
@@ -97,6 +97,7 @@ class _SchedulePanel extends ConsumerWidget {
   Widget build(BuildContext context, WidgetRef ref) {
     final schedulesAsync = ref.watch(dutySchedulesProvider);
     final profilesAsync = ref.watch(profilesProvider);
+    final rotationConfig = ref.watch(rotationConfigProvider).valueOrNull;
     final currentUserId = ref.watch(currentUserIdProvider);
     final showPast = ref.watch(showPastSchedulesProvider);
 
@@ -183,6 +184,7 @@ class _SchedulePanel extends ConsumerWidget {
                               profileById,
                               schedule,
                               isAdmin,
+                              rotationConfig,
                             ),
                             relieverLabels: _relieverLabelsFromIds(
                               schedule.relieverIds,
@@ -211,12 +213,13 @@ class _SchedulePanel extends ConsumerWidget {
     Map<String, Profile> profileById,
     DutySchedule schedule,
     bool isAdmin,
+    RotationConfig? rotationConfig,
   ) {
     final profile = profileById[schedule.userId];
     final name = profile?.fullName.isNotEmpty == true
         ? profile!.fullName
         : schedule.userId;
-    return '${_shiftLabel(schedule.shiftType)} · $name';
+    return '${_shiftLabel(schedule.shiftType, rotationConfig)} · $name';
   }
 
   static String _dayOfWeek(DateTime day) {
@@ -224,7 +227,21 @@ class _SchedulePanel extends ConsumerWidget {
     return days[day.weekday - 1];
   }
 
-  String _shiftLabel(String value) {
+  String _shiftLabel(String value, RotationConfig? config) {
+    final configured = config?.shiftTypes.firstWhere(
+      (s) => s.id == value,
+      orElse: () => ShiftTypeConfig(
+        id: value,
+        label: value,
+        startHour: 0,
+        startMinute: 0,
+        durationMinutes: 0,
+      ),
+    );
+    if (configured != null && configured.label.isNotEmpty) {
+      return configured.label;
+    }
+
     switch (value) {
       case 'am':
         return 'AM Duty';
@@ -285,6 +302,42 @@ class _ScheduleTile extends ConsumerWidget {
     );
     final canRequestSwap = isMine && schedule.status != 'absent' && !isPast;
 
+    final profiles = ref.watch(profilesProvider).valueOrNull ?? [];
+    Profile? profile;
+    try {
+      profile = profiles.firstWhere((p) => p.id == schedule.userId);
+    } catch (_) {
+      profile = null;
+    }
+    final role = profile?.role;
+    final rotationConfig = ref.watch(rotationConfigProvider).valueOrNull;
+
+    ShiftTypeConfig? shiftTypeConfig;
+    if (rotationConfig != null) {
+      try {
+        shiftTypeConfig = rotationConfig.shiftTypes.firstWhere(
+          (s) => s.id == schedule.shiftType,
+        );
+      } catch (_) {
+        shiftTypeConfig = null;
+      }
+    }
+
+    final isInvalidShiftForRole =
+        role != null &&
+        shiftTypeConfig != null &&
+        shiftTypeConfig.allowedRoles.isNotEmpty &&
+        !shiftTypeConfig.allowedRoles.contains(role);
+
+    final isHoliday =
+        rotationConfig?.holidays.any(
+          (h) =>
+              h.date.year == schedule.startTime.year &&
+              h.date.month == schedule.startTime.month &&
+              h.date.day == schedule.startTime.day,
+        ) ==
+        true;
+
     return Card(
       child: Padding(
         padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
@@ -314,6 +367,48 @@ class _ScheduleTile extends ConsumerWidget {
                           color: _statusColor(context, schedule.status),
                         ),
                       ),
+                      if (isHoliday) ...[
+                        const SizedBox(height: 4),
+                        Row(
+                          children: [
+                            Icon(
+                              Icons.calendar_month,
+                              size: 16,
+                              color: Theme.of(context).colorScheme.primary,
+                            ),
+                            const SizedBox(width: 4),
+                            Text(
+                              'Holiday',
+                              style: Theme.of(context).textTheme.bodySmall
+                                  ?.copyWith(
+                                    color: Theme.of(
+                                      context,
+                                    ).colorScheme.primary,
+                                  ),
+                            ),
+                          ],
+                        ),
+                      ],
+                      if (isInvalidShiftForRole) ...[
+                        const SizedBox(height: 4),
+                        Row(
+                          children: [
+                            Icon(
+                              Icons.warning_amber,
+                              size: 16,
+                              color: Theme.of(context).colorScheme.error,
+                            ),
+                            const SizedBox(width: 4),
+                            Text(
+                              'Shift not allowed for role',
+                              style: Theme.of(context).textTheme.bodySmall
+                                  ?.copyWith(
+                                    color: Theme.of(context).colorScheme.error,
+                                  ),
+                            ),
+                          ],
+                        ),
+                      ],
                     ],
                   ),
                 ),
@@ -389,11 +484,46 @@ class _ScheduleTile extends ConsumerWidget {
     var startTime = TimeOfDay.fromDateTime(schedule.startTime);
     var endTime = TimeOfDay.fromDateTime(schedule.endTime);
 
+    final rotationConfig = ref.read(rotationConfigProvider).valueOrNull;
+    final shiftTypeConfigs =
+        rotationConfig?.shiftTypes ?? RotationConfig().shiftTypes;
+
     final confirmed = await m3ShowDialog<bool>(
       context: context,
       builder: (dialogContext) {
         return StatefulBuilder(
           builder: (context, setState) {
+            final selectedRole = () {
+              try {
+                return staff.firstWhere((p) => p.id == selectedUserId).role;
+              } catch (_) {
+                return null;
+              }
+            }();
+
+            final allowed = shiftTypeConfigs
+                .where(
+                  (s) =>
+                      selectedRole == null ||
+                      s.allowedRoles.isEmpty ||
+                      s.allowedRoles.contains(selectedRole),
+                )
+                .toList();
+            // Ensure the currently selected shift is always available.
+            if (!allowed.any((s) => s.id == selectedShift)) {
+              final existing = shiftTypeConfigs.firstWhere(
+                (s) => s.id == selectedShift,
+                orElse: () => ShiftTypeConfig(
+                  id: selectedShift,
+                  label: selectedShift,
+                  startHour: 0,
+                  startMinute: 0,
+                  durationMinutes: 0,
+                ),
+              );
+              allowed.add(existing);
+            }
+
             return AlertDialog(
               shape: AppSurfaces.of(context).dialogShape,
               title: const Text('Edit Schedule'),
@@ -420,17 +550,12 @@ class _ScheduleTile extends ConsumerWidget {
                     const SizedBox(height: 12),
                     DropdownButtonFormField<String>(
                       initialValue: selectedShift,
-                      items: const [
-                        DropdownMenuItem(value: 'am', child: Text('AM Duty')),
-                        DropdownMenuItem(value: 'pm', child: Text('PM Duty')),
-                        DropdownMenuItem(
-                          value: 'on_call',
-                          child: Text('On Call'),
-                        ),
-                        DropdownMenuItem(
-                          value: 'normal',
-                          child: Text('Normal'),
-                        ),
+                      items: [
+                        for (final type in allowed)
+                          DropdownMenuItem(
+                            value: type.id,
+                            child: Text(type.label),
+                          ),
                       ],
                       onChanged: (v) {
                         if (v != null) setState(() => selectedShift = v);
@@ -784,6 +909,7 @@ class _DraftSchedule {
     required this.shiftType,
     required this.startTime,
     required this.endTime,
+    this.isHoliday = false,
     List<String>? relieverIds,
   }) : relieverIds = relieverIds ?? <String>[];
 
@@ -793,6 +919,7 @@ class _DraftSchedule {
   DateTime startTime;
   DateTime endTime;
   List<String> relieverIds;
+  bool isHoliday;
 }
 
 class _RotationEntry {
@@ -1027,7 +1154,9 @@ class _ScheduleGeneratorPanelState
 
       final rotationConfig = ref.read(rotationConfigProvider).valueOrNull;
       final schedules = ref.read(dutySchedulesProvider).valueOrNull ?? [];
-      final templates = _buildTemplates(schedules);
+      final shiftTypes =
+          rotationConfig?.shiftTypes ?? RotationConfig().shiftTypes;
+      final templates = _buildTemplates(schedules, shiftTypes);
       final generated = _generateDrafts(
         start,
         end,
@@ -1037,7 +1166,7 @@ class _ScheduleGeneratorPanelState
         rotationConfig: rotationConfig,
       );
       generated.sort((a, b) => a.startTime.compareTo(b.startTime));
-      final warnings = _buildWarnings(start, end, generated);
+      final warnings = _buildWarnings(start, end, generated, rotationConfig);
 
       if (!mounted) return;
       setState(() {
@@ -1123,6 +1252,7 @@ class _ScheduleGeneratorPanelState
   }
 
   Widget _buildDraftList(BuildContext context) {
+    final rotationConfig = ref.watch(rotationConfigProvider).valueOrNull;
     return ListView.separated(
       primary: false,
       itemCount: _draftSchedules.length,
@@ -1153,7 +1283,7 @@ class _ScheduleGeneratorPanelState
                         crossAxisAlignment: CrossAxisAlignment.start,
                         children: [
                           Text(
-                            '${_shiftLabel(draft.shiftType)} · $userLabel',
+                            '${_shiftLabel(draft.shiftType, rotationConfig)} · $userLabel',
                             style: Theme.of(context).textTheme.bodyMedium
                                 ?.copyWith(fontWeight: FontWeight.w600),
                           ),
@@ -1219,6 +1349,7 @@ class _ScheduleGeneratorPanelState
         _startDate ?? AppTime.now(),
         _endDate ?? AppTime.now(),
         _draftSchedules,
+        ref.read(rotationConfigProvider).valueOrNull,
       );
     });
   }
@@ -1400,6 +1531,7 @@ class _ScheduleGeneratorPanelState
         _startDate ?? result.startTime,
         _endDate ?? result.endTime,
         _draftSchedules,
+        ref.read(rotationConfigProvider).valueOrNull,
       );
     });
   }
@@ -1506,8 +1638,22 @@ class _ScheduleGeneratorPanelState
     return {for (final profile in profiles) profile.id: profile};
   }
 
-  Map<String, _ShiftTemplate> _buildTemplates(List<DutySchedule> schedules) {
+  Map<String, _ShiftTemplate> _buildTemplates(
+    List<DutySchedule> schedules,
+    List<ShiftTypeConfig> shiftTypes,
+  ) {
     final templates = <String, _ShiftTemplate>{};
+
+    // Add configured shift type templates first (source of truth).
+    for (final shiftType in shiftTypes) {
+      templates[shiftType.id] = _ShiftTemplate(
+        startHour: shiftType.startHour,
+        startMinute: shiftType.startMinute,
+        duration: shiftType.duration,
+      );
+    }
+
+    // Fall back to observed schedule patterns for any missing shift types.
     for (final schedule in schedules) {
       final key = _normalizeShiftType(schedule.shiftType);
       if (templates.containsKey(key)) continue;
@@ -1522,51 +1668,7 @@ class _ScheduleGeneratorPanelState
         duration: end.difference(start),
       );
     }
-    templates['am'] = _ShiftTemplate(
-      startHour: 7,
-      startMinute: 0,
-      duration: const Duration(hours: 8),
-    );
-    templates['pm'] = _ShiftTemplate(
-      startHour: 15,
-      startMinute: 0,
-      duration: const Duration(hours: 8),
-    );
-    templates['on_call'] = _ShiftTemplate(
-      startHour: 23,
-      startMinute: 0,
-      duration: const Duration(hours: 8),
-    );
-    // Weekend Saturday on_call: 5PM (17:00) to 8AM (08:00) next day = 15 hours
-    templates['on_call_saturday'] = _ShiftTemplate(
-      startHour: 17,
-      startMinute: 0,
-      duration: const Duration(hours: 15),
-    );
-    // Weekend Sunday on_call: 5PM (17:00) to 7AM (07:00) next day = 14 hours
-    templates['on_call_sunday'] = _ShiftTemplate(
-      startHour: 17,
-      startMinute: 0,
-      duration: const Duration(hours: 14),
-    );
-    // Default normal shift (8am-5pm = 9 hours)
-    templates['normal'] = _ShiftTemplate(
-      startHour: 8,
-      startMinute: 0,
-      duration: const Duration(hours: 9),
-    );
-    // Islam Ramadan normal shift (8am-4pm = 8 hours)
-    templates['normal_ramadan_islam'] = _ShiftTemplate(
-      startHour: 8,
-      startMinute: 0,
-      duration: const Duration(hours: 8),
-    );
-    // Non-Islam Ramadan normal shift (8am-5pm = 9 hours, same as default)
-    templates['normal_ramadan_other'] = _ShiftTemplate(
-      startHour: 8,
-      startMinute: 0,
-      duration: const Duration(hours: 9),
-    );
+
     return templates;
   }
 
@@ -1584,6 +1686,91 @@ class _ScheduleGeneratorPanelState
     final existing = schedules;
 
     final excludedIds = rotationConfig?.excludedStaffIds ?? [];
+    final shiftTypes =
+        rotationConfig?.shiftTypes ?? RotationConfig().shiftTypes;
+    final roleWeeklyHours = rotationConfig?.roleWeeklyHours ?? {};
+    final holidayDates = (rotationConfig?.holidays ?? [])
+        .map((h) => DateTime(h.date.year, h.date.month, h.date.day))
+        .toSet();
+
+    final userRoles = {for (final p in staff) p.id: p.role};
+
+    bool isShiftTypeAllowedForRole(String shiftTypeId, String role) {
+      final config = shiftTypes.firstWhere(
+        (s) => s.id == shiftTypeId,
+        orElse: () => ShiftTypeConfig(
+          id: shiftTypeId,
+          label: shiftTypeId,
+          startHour: 0,
+          startMinute: 0,
+          durationMinutes: 0,
+          allowedRoles: const [],
+        ),
+      );
+      return config.allowedRoles.isEmpty || config.allowedRoles.contains(role);
+    }
+
+    int minutesInWeekForUser(
+      String userId,
+      DateTime weekStart,
+      DateTime weekEnd,
+    ) {
+      int workMinutesForSchedule(dynamic schedule) {
+        final duration = schedule.endTime.difference(schedule.startTime);
+        final shiftType = shiftTypes.firstWhere(
+          (s) => s.id == schedule.shiftType,
+          orElse: () => ShiftTypeConfig(
+            id: schedule.shiftType,
+            label: schedule.shiftType,
+            startHour: 0,
+            startMinute: 0,
+            durationMinutes: duration.inMinutes,
+          ),
+        );
+        final breakMinutes = shiftType.noonBreakMinutes;
+        return (duration.inMinutes - breakMinutes)
+            .clamp(0, duration.inMinutes)
+            .toInt();
+      }
+
+      var total = 0;
+      for (final schedule in existing) {
+        if (schedule.userId != userId) continue;
+        if (schedule.startTime.isBefore(weekStart) ||
+            schedule.startTime.isAfter(weekEnd)) {
+          continue;
+        }
+        total += workMinutesForSchedule(schedule);
+      }
+      for (final item in draft) {
+        if (item.userId != userId) continue;
+        if (item.startTime.isBefore(weekStart) ||
+            item.startTime.isAfter(weekEnd)) {
+          continue;
+        }
+        total += workMinutesForSchedule(item);
+      }
+      return total;
+    }
+
+    bool canAddShift(
+      String userId,
+      String shiftTypeId,
+      int shiftMinutes,
+      DateTime weekStart,
+      DateTime weekEnd,
+    ) {
+      final role = userRoles[userId];
+      if (role == null) return true;
+      if (!isShiftTypeAllowedForRole(shiftTypeId, role)) {
+        return false;
+      }
+      final capHours = roleWeeklyHours[role];
+      if (capHours == null || capHours <= 0) return true;
+      final capMinutes = capHours * 60;
+      final currentMinutes = minutesInWeekForUser(userId, weekStart, weekEnd);
+      return currentMinutes + shiftMinutes <= capMinutes;
+    }
 
     // Only IT Staff rotate through AM/PM/on_call shifts (minus excluded)
     final allItStaff = staff.where((p) => p.role == 'it_staff').toList();
@@ -1706,6 +1893,39 @@ class _ScheduleGeneratorPanelState
           : itStaff[pmBaseIndex % itStaff.length].id;
       final pmRelievers = _buildRelievers(pmBaseIndex, itStaff);
 
+      void tryAddShift(
+        String shiftType,
+        String userId,
+        DateTime day,
+        List<String> relieverIds, {
+        String? displayShiftType,
+        required bool isHoliday,
+      }) {
+        final template = templates[_normalizeShiftType(shiftType)];
+        if (template == null) return;
+        final durationMinutes = template.duration.inMinutes;
+        if (!canAddShift(
+          userId,
+          shiftType,
+          durationMinutes,
+          weekStart,
+          weekEnd,
+        )) {
+          return;
+        }
+        _tryAddDraft(
+          draft,
+          existing,
+          templates,
+          shiftType,
+          userId,
+          day,
+          relieverIds,
+          displayShiftType: displayShiftType,
+          isHoliday: isHoliday,
+        );
+      }
+
       for (
         var day = weekStart;
         !day.isAfter(weekEnd);
@@ -1717,53 +1937,48 @@ class _ScheduleGeneratorPanelState
         final isWeekend =
             day.weekday == DateTime.saturday || day.weekday == DateTime.sunday;
         final dayIsRamadan = isApproximateRamadan(day);
+        final isHoliday = holidayDates.contains(
+          DateTime(day.year, day.month, day.day),
+        );
 
         if (isWeekend) {
           final isSaturday = day.weekday == DateTime.saturday;
           if (isSaturday) {
             // Saturday: AM person gets normal shift, PM person gets weekend on_call
             if (amUserId != null) {
-              _tryAddDraft(
-                draft,
-                existing,
-                templates,
+              tryAddShift(
                 'normal',
                 amUserId,
                 day,
                 const [],
+                isHoliday: isHoliday,
               );
             }
             if (pmUserId != null) {
-              _tryAddDraft(
-                draft,
-                existing,
-                templates,
+              tryAddShift(
                 'on_call_saturday',
                 pmUserId,
                 day,
                 pmRelievers,
+                isHoliday: isHoliday,
               );
             }
           } else {
             // Sunday: PM person gets both normal and weekend on_call
             if (pmUserId != null) {
-              _tryAddDraft(
-                draft,
-                existing,
-                templates,
+              tryAddShift(
                 'normal',
                 pmUserId,
                 day,
                 const [],
+                isHoliday: isHoliday,
               );
-              _tryAddDraft(
-                draft,
-                existing,
-                templates,
+              tryAddShift(
                 'on_call_sunday',
                 pmUserId,
                 day,
                 pmRelievers,
+                isHoliday: isHoliday,
               );
             }
           }
@@ -1791,34 +2006,22 @@ class _ScheduleGeneratorPanelState
           }
 
           if (effectiveAmUserId != null) {
-            _tryAddDraft(
-              draft,
-              existing,
-              templates,
+            tryAddShift(
               'am',
               effectiveAmUserId,
               day,
               const [],
+              isHoliday: isHoliday,
             );
           }
           if (pmUserId != null) {
-            _tryAddDraft(
-              draft,
-              existing,
-              templates,
-              'pm',
-              pmUserId,
-              day,
-              pmRelievers,
-            );
-            _tryAddDraft(
-              draft,
-              existing,
-              templates,
+            tryAddShift('pm', pmUserId, day, pmRelievers, isHoliday: isHoliday);
+            tryAddShift(
               'on_call',
               pmUserId,
               day,
               pmRelievers,
+              isHoliday: isHoliday,
             );
           }
 
@@ -1834,34 +2037,69 @@ class _ScheduleGeneratorPanelState
                 : dayIsRamadan
                 ? 'normal_ramadan_other'
                 : 'normal';
-            _tryAddDraft(
-              draft,
-              existing,
-              templates,
+            tryAddShift(
               normalKey,
               profile.id,
               day,
               const [],
               displayShiftType: 'normal',
+              isHoliday: isHoliday,
             );
           }
 
-          // Admin/Dispatcher always get normal shift (no rotation)
+          // Admin/Dispatcher always get a role-specific shift (no rotation).
+          String shiftTypeForRole(Profile profile) {
+            // Exclude IT rotation shift types; those are handled above.
+            const itRotationIds = {
+              'am',
+              'pm',
+              'on_call',
+              'on_call_saturday',
+              'on_call_sunday',
+            };
+
+            final candidates = shiftTypes.where((s) {
+              if (itRotationIds.contains(s.id)) return false;
+              if (s.allowedRoles.isNotEmpty &&
+                  !s.allowedRoles.contains(profile.role)) {
+                return false;
+              }
+              return true;
+            }).toList();
+
+            if (candidates.isEmpty) {
+              // Fallback to the old "normal" behavior.
+              if (dayIsRamadan) {
+                return profile.religion == 'islam'
+                    ? 'normal_ramadan_islam'
+                    : 'normal_ramadan_other';
+              }
+              return 'normal';
+            }
+
+            if (dayIsRamadan) {
+              final r = profile.religion == 'islam'
+                  ? 'ramadan_islam'
+                  : 'ramadan_other';
+              final match = candidates.firstWhere(
+                (s) => s.id.contains(r),
+                orElse: () => candidates.first,
+              );
+              return match.id;
+            }
+
+            return candidates.first.id;
+          }
+
           for (final profile in nonRotating) {
-            final normalKey = dayIsRamadan && profile.religion == 'islam'
-                ? 'normal_ramadan_islam'
-                : dayIsRamadan
-                ? 'normal_ramadan_other'
-                : 'normal';
-            _tryAddDraft(
-              draft,
-              existing,
-              templates,
-              normalKey,
+            final shiftKey = shiftTypeForRole(profile);
+            tryAddShift(
+              shiftKey,
               profile.id,
               day,
               const [],
-              displayShiftType: 'normal',
+              displayShiftType: shiftKey,
+              isHoliday: isHoliday,
             );
           }
         }
@@ -1882,6 +2120,7 @@ class _ScheduleGeneratorPanelState
     DateTime day,
     List<String> relieverIds, {
     String? displayShiftType,
+    bool isHoliday = false,
   }) {
     final template = templates[_normalizeShiftType(shiftType)]!;
     final start = template.buildStart(day);
@@ -1892,6 +2131,7 @@ class _ScheduleGeneratorPanelState
       shiftType: displayShiftType ?? shiftType,
       startTime: start,
       endTime: end,
+      isHoliday: isHoliday,
       relieverIds: relieverIds,
     );
 
@@ -1997,6 +2237,7 @@ class _ScheduleGeneratorPanelState
     DateTime start,
     DateTime end,
     List<_DraftSchedule> drafts,
+    RotationConfig? rotationConfig,
   ) {
     final warnings = <String>[];
     var day = DateTime(start.year, start.month, start.day);
@@ -2025,7 +2266,7 @@ class _ScheduleGeneratorPanelState
       for (final shift in required) {
         if (!available.contains(shift)) {
           warnings.add(
-            '${AppTime.formatDate(day)} missing ${_shiftLabel(shift)}',
+            '${AppTime.formatDate(day)} missing ${_shiftLabel(shift, rotationConfig)}',
           );
         }
       }
@@ -2044,7 +2285,21 @@ class _ScheduleGeneratorPanelState
     return value;
   }
 
-  String _shiftLabel(String value) {
+  String _shiftLabel(String value, RotationConfig? rotationConfig) {
+    final configured = rotationConfig?.shiftTypes.firstWhere(
+      (s) => s.id == value,
+      orElse: () => ShiftTypeConfig(
+        id: value,
+        label: value,
+        startHour: 0,
+        startMinute: 0,
+        durationMinutes: 0,
+      ),
+    );
+    if (configured != null && configured.label.isNotEmpty) {
+      return configured.label;
+    }
+
     switch (value) {
       case 'am':
         return 'AM Duty';
@@ -2072,6 +2327,7 @@ class _SwapRequestsPanel extends ConsumerWidget {
     final swapsAsync = ref.watch(swapRequestsProvider);
     final schedulesAsync = ref.watch(dutySchedulesProvider);
     final profilesAsync = ref.watch(profilesProvider);
+    final rotationConfig = ref.watch(rotationConfigProvider).valueOrNull;
     final currentUserId = ref.watch(currentUserIdProvider);
 
     final Map<String, DutySchedule> scheduleById = {
@@ -2132,13 +2388,13 @@ class _SwapRequestsPanel extends ConsumerWidget {
             String subtitle;
             if (requesterSchedule != null && targetSchedule != null) {
               subtitle =
-                  '${_shiftLabel(requesterSchedule.shiftType)} · ${AppTime.formatDate(requesterSchedule.startTime)} · ${AppTime.formatTime(requesterSchedule.startTime)} → ${_shiftLabel(targetSchedule.shiftType)} · ${AppTime.formatDate(targetSchedule.startTime)} · ${AppTime.formatTime(targetSchedule.startTime)}';
+                  '${_shiftLabel(requesterSchedule.shiftType, rotationConfig)} · ${AppTime.formatDate(requesterSchedule.startTime)} · ${AppTime.formatTime(requesterSchedule.startTime)} → ${_shiftLabel(targetSchedule.shiftType, rotationConfig)} · ${AppTime.formatDate(targetSchedule.startTime)} · ${AppTime.formatTime(targetSchedule.startTime)}';
             } else if (requesterSchedule != null) {
               subtitle =
-                  '${_shiftLabel(requesterSchedule.shiftType)} · ${AppTime.formatDate(requesterSchedule.startTime)} · ${AppTime.formatTime(requesterSchedule.startTime)}';
+                  '${_shiftLabel(requesterSchedule.shiftType, rotationConfig)} · ${AppTime.formatDate(requesterSchedule.startTime)} · ${AppTime.formatTime(requesterSchedule.startTime)}';
             } else if (item.shiftStartTime != null) {
               subtitle =
-                  '${_shiftLabel(item.shiftType ?? 'normal')} · ${AppTime.formatDate(item.shiftStartTime!)} · ${AppTime.formatTime(item.shiftStartTime!)}';
+                  '${_shiftLabel(item.shiftType ?? 'normal', rotationConfig)} · ${AppTime.formatDate(item.shiftStartTime!)} · ${AppTime.formatTime(item.shiftStartTime!)}';
             } else {
               subtitle = 'Shift not found';
             }
@@ -2316,7 +2572,21 @@ class _SwapRequestsPanel extends ConsumerWidget {
     ref.invalidate(swapRequestsProvider);
   }
 
-  String _shiftLabel(String value) {
+  String _shiftLabel(String value, RotationConfig? rotationConfig) {
+    final configured = rotationConfig?.shiftTypes.firstWhere(
+      (s) => s.id == value,
+      orElse: () => ShiftTypeConfig(
+        id: value,
+        label: value,
+        startHour: 0,
+        startMinute: 0,
+        durationMinutes: 0,
+      ),
+    );
+    if (configured != null && configured.label.isNotEmpty) {
+      return configured.label;
+    }
+
     switch (value) {
       case 'am':
         return 'AM Duty';
diff --git a/lib/services/holidays_service.dart b/lib/services/holidays_service.dart
new file mode 100644
index 00000000..c7df8eeb
--- /dev/null
+++ b/lib/services/holidays_service.dart
@@ -0,0 +1,51 @@
+import 'dart:convert';
+
+import 'package:http/http.dart' as http;
+
+import '../models/rotation_config.dart';
+
+/// Provides holiday lookup via Nager.Date.
+class HolidaysService {
+  /// Fetches Philippine public holidays for [year].
+  ///
+  /// Returns a list of [Holiday] instances.
+  static Future<List<Holiday>> fetchPhilippinesHolidays(int year) async {
+    final uri = Uri.https('date.nager.at', '/api/v3/PublicHolidays/$year/PH');
+    final response = await http.get(uri);
+    if (response.statusCode != 200) {
+      throw Exception('Failed to fetch holidays: ${response.statusCode}');
+    }
+
+    final decoded = jsonDecode(response.body);
+    if (decoded is! List) {
+      throw Exception('Unexpected holiday response format');
+    }
+
+    return decoded
+        .whereType<Map<String, dynamic>>()
+        .map((item) {
+          final dateString = item['date'] as String?;
+          final name =
+              item['localName'] as String? ??
+              item['name'] as String? ??
+              'Holiday';
+
+          if (dateString == null) {
+            return null;
+          }
+
+          final parsed = DateTime.tryParse(dateString);
+          if (parsed == null) {
+            return null;
+          }
+
+          return Holiday(
+            date: DateTime(parsed.year, parsed.month, parsed.day),
+            name: name,
+            source: 'nager',
+          );
+        })
+        .whereType<Holiday>()
+        .toList();
+  }
+}
diff --git a/supabase/migrations/20260318190000_rotation_config_defaults.sql b/supabase/migrations/20260318190000_rotation_config_defaults.sql
new file mode 100644
index 00000000..1e752830
--- /dev/null
+++ b/supabase/migrations/20260318190000_rotation_config_defaults.sql
@@ -0,0 +1,31 @@
+-- Ensure rotation_config has new defaults without overwriting existing custom values.
+-- This migration is idempotent: rerunning it does not change already-set values.
+
+-- Ensure the row exists (older installs may not have created it yet).
+INSERT INTO app_settings (key, value)
+VALUES ('rotation_config', '{}'::jsonb)
+ON CONFLICT (key) DO NOTHING;
+
+-- Add missing keys (only) using a conditional merge.
+UPDATE app_settings
+SET value = value || (
+  (CASE
+     WHEN value ? 'shift_types' THEN '{}'::jsonb
+     ELSE jsonb_build_object(
+       'shift_types',
+       '[{"id":"am","label":"AM Duty","start_hour":7,"start_minute":0,"duration_minutes":480,"allowed_roles":["it_staff"]},
+         {"id":"pm","label":"PM Duty","start_hour":15,"start_minute":0,"duration_minutes":480,"allowed_roles":["it_staff"]},
+         {"id":"on_call","label":"On Call","start_hour":23,"start_minute":0,"duration_minutes":480,"allowed_roles":["it_staff"]},
+         {"id":"on_call_saturday","label":"On Call (Saturday)","start_hour":17,"start_minute":0,"duration_minutes":900,"allowed_roles":["it_staff"]},
+         {"id":"on_call_sunday","label":"On Call (Sunday)","start_hour":17,"start_minute":0,"duration_minutes":840,"allowed_roles":["it_staff"]},
+         {"id":"normal","label":"Normal","start_hour":8,"start_minute":0,"duration_minutes":540,"allowed_roles":["admin","dispatcher","programmer","it_staff"]},
+         {"id":"normal_ramadan_islam","label":"Normal (Ramadan - Islam)","start_hour":8,"start_minute":0,"duration_minutes":480,"allowed_roles":["admin","dispatcher","programmer","it_staff"]},
+         {"id":"normal_ramadan_other","label":"Normal (Ramadan - Other)","start_hour":8,"start_minute":0,"duration_minutes":540,"allowed_roles":["admin","dispatcher","programmer","it_staff"]}]'::jsonb
+     )
+   END)
+  || (CASE WHEN value ? 'role_weekly_hours' THEN '{}'::jsonb ELSE jsonb_build_object('role_weekly_hours', '{}'::jsonb) END)
+  || (CASE WHEN value ? 'holidays' THEN '{}'::jsonb ELSE jsonb_build_object('holidays', '[]'::jsonb) END)
+  || (CASE WHEN value ? 'sync_philippines_holidays' THEN '{}'::jsonb ELSE jsonb_build_object('sync_philippines_holidays', false) END)
+  || (CASE WHEN value ? 'holidays_year' THEN '{}'::jsonb ELSE jsonb_build_object('holidays_year', NULL) END)
+)
+WHERE key = 'rotation_config';
diff --git a/supabase/migrations/20260318191000_rotation_config_merge_shift_types.sql b/supabase/migrations/20260318191000_rotation_config_merge_shift_types.sql
new file mode 100644
index 00000000..23f306b1
--- /dev/null
+++ b/supabase/migrations/20260318191000_rotation_config_merge_shift_types.sql
@@ -0,0 +1,59 @@
+-- Merge stored shift_types with defaults so new default shift types automatically appear
+-- without overwriting existing customizations.
+
+UPDATE app_settings
+SET value = jsonb_set(
+  value,
+  '{shift_types}',
+  (
+    WITH
+      -- Default shift types (must match RotationConfig._defaultShiftTypes())
+      defaults AS (
+        SELECT '[
+          {"id":"am","label":"AM Duty","start_hour":7,"start_minute":0,"duration_minutes":480,"allowed_roles":["it_staff"]},
+          {"id":"pm","label":"PM Duty","start_hour":15,"start_minute":0,"duration_minutes":480,"allowed_roles":["it_staff"]},
+          {"id":"on_call","label":"On Call","start_hour":23,"start_minute":0,"duration_minutes":480,"allowed_roles":["it_staff"]},
+          {"id":"on_call_saturday","label":"On Call (Saturday)","start_hour":17,"start_minute":0,"duration_minutes":900,"allowed_roles":["it_staff"]},
+          {"id":"on_call_sunday","label":"On Call (Sunday)","start_hour":17,"start_minute":0,"duration_minutes":840,"allowed_roles":["it_staff"]},
+          {"id":"normal","label":"Normal","start_hour":8,"start_minute":0,"duration_minutes":540,"allowed_roles":["admin","dispatcher","programmer","it_staff"]},
+          {"id":"normal_ramadan_islam","label":"Normal (Ramadan - Islam)","start_hour":8,"start_minute":0,"duration_minutes":480,"allowed_roles":["admin","dispatcher","programmer","it_staff"]},
+          {"id":"normal_ramadan_other","label":"Normal (Ramadan - Other)","start_hour":8,"start_minute":0,"duration_minutes":540,"allowed_roles":["admin","dispatcher","programmer","it_staff"]}
+        ]'::jsonb AS val
+      ),
+      stored AS (
+        SELECT value->'shift_types' AS val
+        FROM app_settings
+        WHERE key = 'rotation_config'
+      )
+    SELECT
+      -- Start with defaults, overriding with stored by id
+      (
+        SELECT jsonb_agg(COALESCE(stored_elem_val, default_elem))
+        FROM defaults, stored,
+             LATERAL jsonb_array_elements(defaults.val) default_elem
+        LEFT JOIN LATERAL (
+          SELECT s AS stored_elem_val
+          FROM jsonb_array_elements(stored.val) s
+          WHERE s->>'id' = default_elem->>'id'
+          LIMIT 1
+        ) stored_elem ON true
+      )
+      -- Append any stored entries that aren't in defaults
+      || COALESCE(
+        (
+          SELECT jsonb_agg(s)
+          FROM stored,
+               jsonb_array_elements(stored.val) s
+          WHERE NOT EXISTS (
+            SELECT 1
+            FROM defaults,
+                 LATERAL jsonb_array_elements(defaults.val) d
+            WHERE d->>'id' = s->>'id'
+          )
+        ),
+        '[]'::jsonb
+      )
+  )
+)
+WHERE key = 'rotation_config'
+  AND (value ? 'shift_types');