init

lib/app/theme/app_theme.dart

@@ -0,0 +1,47 @@
+import 'package:flutter/material.dart';
+
+final class AppTheme {
+  const AppTheme._();
+
+  static ThemeData get lightTheme {
+    const seed = Color(0xFF4F46E5);
+    final colorScheme = ColorScheme.fromSeed(
+      seedColor: seed,
+      brightness: Brightness.light,
+    );
+
+    return ThemeData(
+      useMaterial3: true,
+      colorScheme: colorScheme,
+      scaffoldBackgroundColor: const Color(0xFFF7F8FC),
+      cardTheme: CardThemeData(
+        elevation: 0,
+        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
+      ),
+      chipTheme: ChipThemeData(
+        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(999)),
+      ),
+    );
+  }
+
+  static ThemeData get darkTheme {
+    const seed = Color(0xFF8B8BFF);
+    final colorScheme = ColorScheme.fromSeed(
+      seedColor: seed,
+      brightness: Brightness.dark,
+    );
+
+    return ThemeData(
+      useMaterial3: true,
+      colorScheme: colorScheme,
+      scaffoldBackgroundColor: const Color(0xFF0B1020),
+      cardTheme: CardThemeData(
+        elevation: 0,
+        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
+      ),
+      chipTheme: ChipThemeData(
+        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(999)),
+      ),
+    );
+  }
+}

lib/app/theme/theme_mode_controller.dart

@@ -0,0 +1,21 @@
+import 'package:flutter/material.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+part 'theme_mode_controller.g.dart';
+
+@riverpod
+class ThemeModeController extends _$ThemeModeController {
+  @override
+  ThemeMode build() => ThemeMode.system;
+
+  void setThemeMode(ThemeMode mode) {
+    state = mode;
+  }
+
+  void toggle() {
+    state = switch (state) {
+      ThemeMode.dark => ThemeMode.light,
+      ThemeMode.light || ThemeMode.system => ThemeMode.dark,
+    };
+  }
+}

lib/app/theme/theme_mode_controller.g.dart

@@ -0,0 +1,63 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'theme_mode_controller.dart';
+
+// **************************************************************************
+// RiverpodGenerator
+// **************************************************************************
+
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint, type=warning
+
+@ProviderFor(ThemeModeController)
+final themeModeControllerProvider = ThemeModeControllerProvider._();
+
+final class ThemeModeControllerProvider
+    extends $NotifierProvider<ThemeModeController, ThemeMode> {
+  ThemeModeControllerProvider._()
+    : super(
+        from: null,
+        argument: null,
+        retry: null,
+        name: r'themeModeControllerProvider',
+        isAutoDispose: true,
+        dependencies: null,
+        $allTransitiveDependencies: null,
+      );
+
+  @override
+  String debugGetCreateSourceHash() => _$themeModeControllerHash();
+
+  @$internal
+  @override
+  ThemeModeController create() => ThemeModeController();
+
+  /// {@macro riverpod.override_with_value}
+  Override overrideWithValue(ThemeMode value) {
+    return $ProviderOverride(
+      origin: this,
+      providerOverride: $SyncValueProvider<ThemeMode>(value),
+    );
+  }
+}
+
+String _$themeModeControllerHash() =>
+    r'96d7617273bf6319cb57844c94190c8514dc0b36';
+
+abstract class _$ThemeModeController extends $Notifier<ThemeMode> {
+  ThemeMode build();
+  @$mustCallSuper
+  @override
+  void runBuild() {
+    final ref = this.ref as $Ref<ThemeMode, ThemeMode>;
+    final element =
+        ref.element
+            as $ClassProviderElement<
+              AnyNotifier<ThemeMode, ThemeMode>,
+              ThemeMode,
+              Object?,
+              Object?
+            >;
+    element.handleCreate(ref, build);
+  }
+}