feat: 글래스모피즘 디자인 시스템 및 색상 가이드 전면 적용

- @doc/color.md 가이드라인에 따른 색상 시스템 전면 개편
- 딥 블루(#2563EB), 스카이 블루(#60A5FA) 메인 컬러로 변경
- 모든 화면과 위젯에 글래스모피즘 효과 일관성 있게 적용
- darkNavy, navyGray 등 새로운 텍스트 색상 체계 도입
- 공통 스낵바 및 다이얼로그 컴포넌트 추가
- Claude AI 프로젝트 컨텍스트 파일(CLAUDE.md) 추가

영향받은 컴포넌트:
- 10개 스크린 (main, settings, detail, splash 등)
- 30개 이상 위젯 (buttons, cards, forms 등)
- 테마 시스템 (AppColors, AppTheme)

🤖 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>

lib/controllers/add_subscription_controller.dart

@@ -6,6 +6,7 @@ import '../providers/subscription_provider.dart';
 import '../providers/category_provider.dart';
 import '../services/sms_service.dart';
 import '../services/subscription_url_matcher.dart';
+import '../widgets/common/snackbar/app_snackbar.dart';
 
 /// AddSubscriptionScreen의 비즈니스 로직을 관리하는 Controller
 class AddSubscriptionController {
@@ -232,21 +233,9 @@ class AddSubscriptionController {
         final granted = await SMSService.requestSMSPermission();
         if (!granted) {
           if (context.mounted) {
-            ScaffoldMessenger.of(context).showSnackBar(
-              SnackBar(
-                content: const Row(
-                  children: [
-                    Icon(Icons.error_outline, color: Colors.white),
-                    SizedBox(width: 12),
-                    Expanded(child: Text('SMS 권한이 필요합니다.')),
-                  ],
-                ),
-                behavior: SnackBarBehavior.floating,
-                backgroundColor: Colors.red,
-                shape: RoundedRectangleBorder(
-                  borderRadius: BorderRadius.circular(10),
-                ),
-              ),
+            AppSnackBar.showError(
+              context: context,
+              message: 'SMS 권한이 필요합니다.',
             );
           }
           return;
@@ -256,21 +245,9 @@ class AddSubscriptionController {
       final subscriptions = await SMSService.scanSubscriptions();
       if (subscriptions.isEmpty) {
         if (context.mounted) {
-          ScaffoldMessenger.of(context).showSnackBar(
-            SnackBar(
-              content: const Row(
-                children: [
-                  Icon(Icons.info_outline, color: Colors.white),
-                  SizedBox(width: 12),
-                  Expanded(child: Text('구독 관련 SMS를 찾을 수 없습니다.')),
-                ],
-              ),
-              behavior: SnackBarBehavior.floating,
-              backgroundColor: Colors.orange,
-              shape: RoundedRectangleBorder(
-                borderRadius: BorderRadius.circular(10),
-              ),
-            ),
+          AppSnackBar.showWarning(
+            context: context,
+            message: '구독 관련 SMS를 찾을 수 없습니다.',
           );
         }
         return;
@@ -331,21 +308,9 @@ class AddSubscriptionController {
       });
     } catch (e) {
       if (context.mounted) {
-        ScaffoldMessenger.of(context).showSnackBar(
-          SnackBar(
-            content: Row(
-              children: [
-                const Icon(Icons.error_outline, color: Colors.white),
-                const SizedBox(width: 12),
-                Expanded(child: Text('SMS 스캔 중 오류 발생: $e')),
-              ],
-            ),
-            behavior: SnackBarBehavior.floating,
-            backgroundColor: Colors.red,
-            shape: RoundedRectangleBorder(
-              borderRadius: BorderRadius.circular(10),
-            ),
-          ),
+        AppSnackBar.showError(
+          context: context,
+          message: 'SMS 스캔 중 오류 발생: $e',
         );
       }
     } finally {
@@ -399,11 +364,9 @@ class AddSubscriptionController {
         });
         
         if (context.mounted) {
-          ScaffoldMessenger.of(context).showSnackBar(
-            SnackBar(
-              content: Text('저장 중 오류가 발생했습니다: $e'),
-              backgroundColor: Colors.red,
-            ),
+          AppSnackBar.showError(
+            context: context,
+            message: '저장 중 오류가 발생했습니다: $e',
           );
         }
       }

lib/controllers/detail_screen_controller.dart

@@ -7,6 +7,8 @@ import '../providers/category_provider.dart';
 import '../services/subscription_url_matcher.dart';
 import 'package:url_launcher/url_launcher.dart';
 import 'package:intl/intl.dart';
+import '../widgets/dialogs/delete_confirmation_dialog.dart';
+import '../widgets/common/snackbar/app_snackbar.dart';
 
 /// DetailScreen의 비즈니스 로직을 관리하는 Controller
 class DetailScreenController {
@@ -313,20 +315,9 @@ class DetailScreenController {
     await provider.updateSubscription(subscription);
     
     if (context.mounted) {
-      ScaffoldMessenger.of(context).showSnackBar(
-        SnackBar(
-          content: const Row(
-            children: [
-              Icon(Icons.check_circle_rounded, color: Colors.white),
-              SizedBox(width: 12),
-              Text('구독 정보가 업데이트되었습니다.'),
-            ],
-          ),
-          behavior: SnackBarBehavior.floating,
-          backgroundColor: const Color(0xFF10B981),
-          duration: const Duration(seconds: 2),
-          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(10)),
-        ),
+      AppSnackBar.showSuccess(
+        context: context,
+        message: '구독 정보가 업데이트되었습니다.',
       );
       
       // 변경 사항이 반영될 시간을 주기 위해 짧게 지연 후 결과 반환
@@ -340,26 +331,27 @@ class DetailScreenController {
   /// 구독 삭제
   Future<void> deleteSubscription() async {
     if (context.mounted) {
-      final provider = Provider.of<SubscriptionProvider>(context, listen: false);
-      await provider.deleteSubscription(subscription.id);
+      // 삭제 확인 다이얼로그 표시
+      final shouldDelete = await DeleteConfirmationDialog.show(
+        context: context,
+        serviceName: subscription.serviceName,
+      );
       
+      if (!shouldDelete) return;
+      
+      // 사용자가 확인한 경우에만 삭제 진행
       if (context.mounted) {
-        ScaffoldMessenger.of(context).showSnackBar(
-          SnackBar(
-            content: const Row(
-              children: [
-                Icon(Icons.delete_forever_rounded, color: Colors.white),
-                SizedBox(width: 12),
-                Text('구독이 삭제되었습니다.'),
-              ],
-            ),
-            behavior: SnackBarBehavior.floating,
-            backgroundColor: const Color(0xFFDC2626),
-            duration: const Duration(seconds: 2),
-            shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(10)),
-          ),
-        );
-        Navigator.of(context).pop();
+        final provider = Provider.of<SubscriptionProvider>(context, listen: false);
+        await provider.deleteSubscription(subscription.id);
+        
+        if (context.mounted) {
+          AppSnackBar.showSuccess(
+            context: context,
+            message: '구독이 삭제되었습니다.',
+            icon: Icons.delete_forever_rounded,
+          );
+          Navigator.of(context).pop();
+        }
       }
     }
   }
@@ -371,21 +363,17 @@ class DetailScreenController {
       final Uri url = Uri.parse(subscription.websiteUrl!);
       if (!await launchUrl(url, mode: LaunchMode.externalApplication)) {
         if (context.mounted) {
-          ScaffoldMessenger.of(context).showSnackBar(
-            const SnackBar(
-              content: Text('웹사이트를 열 수 없습니다.'),
-              backgroundColor: Colors.red,
-            ),
+          AppSnackBar.showError(
+            context: context,
+            message: '웹사이트를 열 수 없습니다.',
           );
         }
       }
     } else {
       if (context.mounted) {
-        ScaffoldMessenger.of(context).showSnackBar(
-          const SnackBar(
-            content: Text('웹사이트 정보가 없습니다. 해지는 웹사이트에서 진행해주세요.'),
-            backgroundColor: Colors.orange,
-          ),
+        AppSnackBar.showWarning(
+          context: context,
+          message: '웹사이트 정보가 없습니다. 해지는 웹사이트에서 진행해주세요.',
         );
       }
     }

lib/screens/add_subscription_screen.dart

@@ -5,6 +5,7 @@ import '../widgets/add_subscription/add_subscription_header.dart';
 import '../widgets/add_subscription/add_subscription_form.dart';
 import '../widgets/add_subscription/add_subscription_event_section.dart';
 import '../widgets/add_subscription/add_subscription_save_button.dart';
+import '../theme/app_colors.dart';
 
 /// 새로운 구독을 추가하는 화면
 class AddSubscriptionScreen extends StatefulWidget {
@@ -44,7 +45,7 @@ class _AddSubscriptionScreenState extends State<AddSubscriptionScreen>
     _controller.scrollController.addListener(_onScroll);
 
     return Scaffold(
-      backgroundColor: const Color(0xFFF8FAFC),
+      backgroundColor: AppColors.backgroundColor,
       extendBodyBehindAppBar: true,
       appBar: AddSubscriptionAppBar(
         controller: _controller,

lib/screens/app_lock_screen.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import '../providers/app_lock_provider.dart';
+import '../theme/app_colors.dart';
 
 class AppLockScreen extends StatelessWidget {
   const AppLockScreen({super.key});
@@ -12,25 +13,26 @@ class AppLockScreen extends StatelessWidget {
         child: Column(
           mainAxisAlignment: MainAxisAlignment.center,
           children: [
-            const Icon(
+            Icon(
               Icons.lock_outline,
               size: 80,
-              color: Colors.grey,
+              color: AppColors.navyGray,
             ),
             const SizedBox(height: 24),
-            const Text(
+            Text(
               '앱이 잠겨 있습니다',
               style: TextStyle(
                 fontSize: 24,
                 fontWeight: FontWeight.bold,
+                color: AppColors.darkNavy,
               ),
             ),
             const SizedBox(height: 16),
-            const Text(
+            Text(
               '생체 인증으로 잠금을 해제하세요',
               style: TextStyle(
                 fontSize: 16,
-                color: Colors.grey,
+                color: AppColors.navyGray,
               ),
             ),
             const SizedBox(height: 32),
@@ -40,8 +42,14 @@ class AppLockScreen extends StatelessWidget {
                 final success = await appLock.authenticate();
                 if (!success && context.mounted) {
                   ScaffoldMessenger.of(context).showSnackBar(
-                    const SnackBar(
-                      content: Text('인증에 실패했습니다. 다시 시도해주세요.'),
+                    SnackBar(
+                      content: Text(
+                        '인증에 실패했습니다. 다시 시도해주세요.',
+                        style: TextStyle(
+                          color: AppColors.pureWhite,
+                        ),
+                      ),
+                      backgroundColor: AppColors.dangerColor,
                     ),
                   );
                 }

lib/screens/category_management_screen.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import '../providers/category_provider.dart';
+import '../theme/app_colors.dart';
 
 class CategoryManagementScreen extends StatefulWidget {
   const CategoryManagementScreen({super.key});
@@ -41,8 +42,13 @@ class _CategoryManagementScreenState extends State<CategoryManagementScreen> {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: const Text('카테고리 관리'),
-        backgroundColor: const Color(0xFF1976D2),
+        title: Text(
+          '카테고리 관리',
+          style: TextStyle(
+            color: AppColors.pureWhite,
+          ),
+        ),
+        backgroundColor: AppColors.primaryColor,
       ),
       body: Consumer<CategoryProvider>(
         builder: (context, provider, child) {
@@ -59,8 +65,11 @@ class _CategoryManagementScreenState extends State<CategoryManagementScreen> {
                       children: [
                         TextFormField(
                           controller: _nameController,
-                          decoration: const InputDecoration(
+                          decoration: InputDecoration(
                             labelText: '카테고리 이름',
+                            labelStyle: TextStyle(
+                              color: AppColors.navyGray,
+                            ),
                           ),
                           validator: (value) {
                             if (value == null || value.isEmpty) {
@@ -72,20 +81,23 @@ class _CategoryManagementScreenState extends State<CategoryManagementScreen> {
                         const SizedBox(height: 16),
                         DropdownButtonFormField<String>(
                           value: _selectedColor,
-                          decoration: const InputDecoration(
+                          decoration: InputDecoration(
                             labelText: '색상 선택',
+                            labelStyle: TextStyle(
+                              color: AppColors.navyGray,
+                            ),
                           ),
-                          items: const [
+                          items: [
                             DropdownMenuItem(
-                                value: '#1976D2', child: Text('파란색')),
+                                value: '#1976D2', child: Text('파란색', style: TextStyle(color: AppColors.darkNavy))),
                             DropdownMenuItem(
-                                value: '#4CAF50', child: Text('초록색')),
+                                value: '#4CAF50', child: Text('초록색', style: TextStyle(color: AppColors.darkNavy))),
                             DropdownMenuItem(
-                                value: '#FF9800', child: Text('주황색')),
+                                value: '#FF9800', child: Text('주황색', style: TextStyle(color: AppColors.darkNavy))),
                             DropdownMenuItem(
-                                value: '#F44336', child: Text('빨간색')),
+                                value: '#F44336', child: Text('빨간색', style: TextStyle(color: AppColors.darkNavy))),
                             DropdownMenuItem(
-                                value: '#9C27B0', child: Text('보라색')),
+                                value: '#9C27B0', child: Text('보라색', style: TextStyle(color: AppColors.darkNavy))),
                           ],
                           onChanged: (value) {
                             setState(() {
@@ -96,19 +108,22 @@ class _CategoryManagementScreenState extends State<CategoryManagementScreen> {
                         const SizedBox(height: 16),
                         DropdownButtonFormField<String>(
                           value: _selectedIcon,
-                          decoration: const InputDecoration(
+                          decoration: InputDecoration(
                             labelText: '아이콘 선택',
+                            labelStyle: TextStyle(
+                              color: AppColors.navyGray,
+                            ),
                           ),
-                          items: const [
+                          items: [
                             DropdownMenuItem(
-                                value: 'subscriptions', child: Text('구독')),
-                            DropdownMenuItem(value: 'movie', child: Text('영화')),
+                                value: 'subscriptions', child: Text('구독', style: TextStyle(color: AppColors.darkNavy))),
+                            DropdownMenuItem(value: 'movie', child: Text('영화', style: TextStyle(color: AppColors.darkNavy))),
                             DropdownMenuItem(
-                                value: 'music_note', child: Text('음악')),
+                                value: 'music_note', child: Text('음악', style: TextStyle(color: AppColors.darkNavy))),
                             DropdownMenuItem(
-                                value: 'fitness_center', child: Text('운동')),
+                                value: 'fitness_center', child: Text('운동', style: TextStyle(color: AppColors.darkNavy))),
                             DropdownMenuItem(
-                                value: 'shopping_cart', child: Text('쇼핑')),
+                                value: 'shopping_cart', child: Text('쇼핑', style: TextStyle(color: AppColors.darkNavy))),
                           ],
                           onChanged: (value) {
                             setState(() {
@@ -119,7 +134,12 @@ class _CategoryManagementScreenState extends State<CategoryManagementScreen> {
                         const SizedBox(height: 16),
                         ElevatedButton(
                           onPressed: _addCategory,
-                          child: const Text('카테고리 추가'),
+                          child: Text(
+                            '카테고리 추가',
+                            style: TextStyle(
+                              color: AppColors.pureWhite,
+                            ),
+                          ),
                         ),
                       ],
                     ),
@@ -141,7 +161,12 @@ class _CategoryManagementScreenState extends State<CategoryManagementScreen> {
                         color: Color(
                             int.parse(category.color.replaceAll('#', '0xFF'))),
                       ),
-                      title: Text(category.name),
+                      title: Text(
+                        category.name,
+                        style: TextStyle(
+                          color: AppColors.darkNavy,
+                        ),
+                      ),
                       trailing: IconButton(
                         icon: const Icon(Icons.delete),
                         onPressed: () async {

lib/screens/detail_screen.dart

@@ -6,6 +6,7 @@ import '../widgets/detail/detail_form_section.dart';
 import '../widgets/detail/detail_event_section.dart';
 import '../widgets/detail/detail_url_section.dart';
 import '../widgets/detail/detail_action_buttons.dart';
+import '../theme/app_colors.dart';
 
 /// 구독 상세 정보를 표시하고 편집할 수 있는 화면
 class DetailScreen extends StatefulWidget {
@@ -46,7 +47,7 @@ class _DetailScreenState extends State<DetailScreen>
     final baseColor = _controller.getCardColor();
 
     return Scaffold(
-      backgroundColor: const Color(0xFFF5F5F7),
+      backgroundColor: AppColors.backgroundColor,
       body: CustomScrollView(
         controller: _controller.scrollController,
         slivers: [

lib/screens/main_screen.dart

@@ -166,7 +166,7 @@ class _MainScreenState extends State<MainScreen>
               children: [
                 Icon(
                   Icons.check_circle,
-                  color: Colors.white,
+                  color: AppColors.pureWhite,
                   size: 20,
                 ),
                 SizedBox(width: 12),
@@ -175,11 +175,12 @@ class _MainScreenState extends State<MainScreen>
                   style: TextStyle(
                     fontSize: 16,
                     fontWeight: FontWeight.w500,
+                    color: AppColors.pureWhite,
                   ),
                 ),
               ],
             ),
-            backgroundColor: const Color(0xFF10B981), // 초록색
+            backgroundColor: AppColors.successColor,
             behavior: SnackBarBehavior.floating,
             margin: EdgeInsets.only(
               top: MediaQuery.of(context).padding.top + 16, // 상단 여백
@@ -219,19 +220,9 @@ class _MainScreenState extends State<MainScreen>
   @override
   Widget build(BuildContext context) {
     final navigationProvider = context.watch<NavigationProvider>();
-    final hour = DateTime.now().hour;
-    List<Color> backgroundGradient;
     
-    // 시간대별 배경 그라디언트 설정
-    if (hour >= 6 && hour < 10) {
-      backgroundGradient = AppColors.morningGradient;
-    } else if (hour >= 10 && hour < 17) {
-      backgroundGradient = AppColors.dayGradient;
-    } else if (hour >= 17 && hour < 20) {
-      backgroundGradient = AppColors.eveningGradient;
-    } else {
-      backgroundGradient = AppColors.nightGradient;
-    }
+    // 메인 그라데이션 사용
+    List<Color> backgroundGradient = AppColors.mainGradient;
 
     // 현재 인덱스가 유효한지 확인
     int currentIndex = navigationProvider.currentIndex;

lib/screens/settings_screen.dart

@@ -8,6 +8,7 @@ import 'package:url_launcher/url_launcher.dart';
 import '../providers/theme_provider.dart';
 import '../theme/adaptive_theme.dart';
 import '../widgets/glassmorphism_card.dart';
+import '../theme/app_colors.dart';
 
 class SettingsScreen extends StatelessWidget {
   const SettingsScreen({super.key});
@@ -24,13 +25,13 @@ class SettingsScreen extends StatelessWidget {
           padding: const EdgeInsets.symmetric(vertical: 10),
           decoration: BoxDecoration(
             color: isSelected
-                ? Theme.of(context).colorScheme.primary.withValues(alpha: 0.2)
+                ? AppColors.primaryColor.withValues(alpha: 0.2)
                 : Colors.transparent,
             borderRadius: BorderRadius.circular(8),
             border: Border.all(
               color: isSelected
-                  ? Theme.of(context).colorScheme.primary
-                  : Theme.of(context).colorScheme.outline.withValues(alpha: 0.5),
+                  ? AppColors.primaryColor
+                  : AppColors.textSecondary.withValues(alpha: 0.5),
               width: isSelected ? 2 : 1,
             ),
           ),
@@ -43,8 +44,8 @@ class SettingsScreen extends StatelessWidget {
                     ? Icons.radio_button_checked
                     : Icons.radio_button_unchecked,
                 color: isSelected
-                    ? Theme.of(context).colorScheme.primary
-                    : Theme.of(context).colorScheme.outline,
+                    ? AppColors.primaryColor
+                    : AppColors.textSecondary,
                 size: 24,
               ),
               const SizedBox(height: 6),
@@ -54,8 +55,8 @@ class SettingsScreen extends StatelessWidget {
                   fontSize: 14,
                   fontWeight: isSelected ? FontWeight.bold : FontWeight.normal,
                   color: isSelected
-                      ? Theme.of(context).colorScheme.primary
-                      : Theme.of(context).colorScheme.onSurface,
+                      ? AppColors.primaryColor
+                      : AppColors.textPrimary,
                 ),
               ),
             ],
@@ -187,8 +188,14 @@ class SettingsScreen extends StatelessWidget {
                             provider.setEnabled(true);
                           } else {
                             ScaffoldMessenger.of(context).showSnackBar(
-                              const SnackBar(
-                                content: Text('알림 권한이 거부되었습니다'),
+                              SnackBar(
+                                content: Text(
+                                  '알림 권한이 거부되었습니다',
+                                  style: TextStyle(
+                                    color: AppColors.pureWhite,
+                                  ),
+                                ),
+                                backgroundColor: AppColors.dangerColor,
                               ),
                             );
                           }
@@ -449,7 +456,15 @@ class SettingsScreen extends StatelessWidget {
                   } catch (e) {
                     if (context.mounted) {
                       ScaffoldMessenger.of(context).showSnackBar(
-                        const SnackBar(content: Text('스토어를 열 수 없습니다')),
+                        SnackBar(
+                          content: Text(
+                            '스토어를 열 수 없습니다',
+                            style: TextStyle(
+                              color: AppColors.pureWhite,
+                            ),
+                          ),
+                          backgroundColor: AppColors.dangerColor,
+                        ),
                       );
                     }
                   }

lib/screens/sms_scan_screen.dart

@@ -9,6 +9,11 @@ import '../services/subscription_url_matcher.dart';
 import 'package:intl/intl.dart'; // NumberFormat을 사용하기 위한 import 추가
 import '../widgets/glassmorphism_card.dart';
 import '../widgets/themed_text.dart';
+import '../theme/app_colors.dart';
+import '../widgets/common/snackbar/app_snackbar.dart';
+import '../widgets/common/buttons/primary_button.dart';
+import '../widgets/common/buttons/secondary_button.dart';
+import '../widgets/common/form_fields/base_text_field.dart';
 
 class SmsScanScreen extends StatefulWidget {
   const SmsScanScreen({super.key});
@@ -352,41 +357,9 @@ class _SmsScanScreenState extends State<SmsScanScreen> {
 
       // 성공 메시지 표시
       if (mounted) {
-        ScaffoldMessenger.of(context).showSnackBar(
-          SnackBar(
-            content: Row(
-              children: [
-                const Icon(
-                  Icons.check_circle,
-                  color: Colors.white,
-                  size: 20,
-                ),
-                const SizedBox(width: 12),
-                Expanded(
-                  child: Text(
-                    '${subscription.serviceName} 구독이 추가되었습니다.',
-                    style: const TextStyle(
-                      fontSize: 16,
-                      fontWeight: FontWeight.w500,
-                    ),
-                  ),
-                ),
-              ],
-            ),
-            backgroundColor: const Color(0xFF10B981), // 초록색
-            behavior: SnackBarBehavior.floating,
-            margin: EdgeInsets.only(
-              top: MediaQuery.of(context).padding.top + 16, // 상단 여백
-              left: 16,
-              right: 16,
-              bottom: MediaQuery.of(context).size.height - 120, // 상단에 위치하도록 bottom 마진 설정
-            ),
-            shape: RoundedRectangleBorder(
-              borderRadius: BorderRadius.circular(12),
-            ),
-            duration: const Duration(seconds: 3),
-            dismissDirection: DismissDirection.horizontal,
-          ),
+        AppSnackBar.showSuccess(
+          context: context,
+          message: '${subscription.serviceName} 구독이 추가되었습니다.',
         );
       }
 
@@ -395,12 +368,9 @@ class _SmsScanScreenState extends State<SmsScanScreen> {
     } catch (e) {
       print('구독 추가 중 오류 발생: $e');
       if (mounted) {
-        ScaffoldMessenger.of(context).showSnackBar(
-          SnackBar(
-            content: Text('구독 추가 중 오류가 발생했습니다: $e'),
-            backgroundColor: Colors.red,
-            duration: const Duration(seconds: 2),
-          ),
+        AppSnackBar.showError(
+          context: context,
+          message: '구독 추가 중 오류가 발생했습니다: $e',
         );
 
         // 오류가 있어도 다음 구독으로 이동
@@ -411,6 +381,16 @@ class _SmsScanScreenState extends State<SmsScanScreen> {
 
   // 현재 구독 건너뛰기
   void _skipCurrentSubscription() {
+    final subscription = _scannedSubscriptions[_currentIndex];
+    
+    if (mounted) {
+      AppSnackBar.showInfo(
+        context: context,
+        message: '${subscription.serviceName} 구독을 건너뛰었습니다.',
+        icon: Icons.skip_next_rounded,
+      );
+    }
+    
     _moveToNextSubscription();
   }
 
@@ -434,12 +414,9 @@ class _SmsScanScreenState extends State<SmsScanScreen> {
     navigationProvider.updateCurrentIndex(0);
     
     // 완료 메시지 표시
-    ScaffoldMessenger.of(context).showSnackBar(
-      const SnackBar(
-        content: Text('모든 구독이 처리되었습니다.'),
-        backgroundColor: Colors.green,
-        duration: Duration(seconds: 2),
-      ),
+    AppSnackBar.showSuccess(
+      context: context,
+      message: '모든 구독이 처리되었습니다.',
     );
   }
 
@@ -530,15 +507,17 @@ class _SmsScanScreenState extends State<SmsScanScreen> {
 
   // 로딩 상태 UI
   Widget _buildLoadingState() {
-    return const Center(
+    return Center(
       child: Column(
         mainAxisAlignment: MainAxisAlignment.center,
         children: [
-          CircularProgressIndicator(),
-          SizedBox(height: 16),
-          ThemedText('SMS 메시지를 스캔 중입니다...'),
-          SizedBox(height: 8),
-          ThemedText('구독 서비스를 찾고 있습니다', opacity: 0.7),
+          CircularProgressIndicator(
+            valueColor: AlwaysStoppedAnimation<Color>(AppColors.primaryColor),
+          ),
+          const SizedBox(height: 16),
+          const ThemedText('SMS 메시지를 스캔 중입니다...', forceDark: true),
+          const SizedBox(height: 8),
+          const ThemedText('구독 서비스를 찾고 있습니다', opacity: 0.7, forceDark: true),
         ],
       ),
     );
@@ -564,6 +543,7 @@ class _SmsScanScreenState extends State<SmsScanScreen> {
             '2회 이상 결제된 구독 서비스 찾기',
             fontSize: 20,
             fontWeight: FontWeight.bold,
+            forceDark: true,
           ),
           const SizedBox(height: 16),
           const Padding(
@@ -572,16 +552,17 @@ class _SmsScanScreenState extends State<SmsScanScreen> {
               '문자 메시지를 스캔하여 반복적으로 결제된 구독 서비스를 자동으로 찾습니다. 서비스명과 금액을 추출하여 쉽게 구독을 추가할 수 있습니다.',
               textAlign: TextAlign.center,
               opacity: 0.7,
+              forceDark: true,
             ),
           ),
           const SizedBox(height: 32),
-          ElevatedButton.icon(
+          PrimaryButton(
+            text: '스캔 시작하기',
+            icon: Icons.search_rounded,
             onPressed: _scanSms,
-            icon: const Icon(Icons.search),
-            label: const Text('스캔 시작하기'),
-            style: ElevatedButton.styleFrom(
-              padding: const EdgeInsets.symmetric(horizontal: 32, vertical: 12),
-            ),
+            width: 200,
+            height: 56,
+            backgroundColor: AppColors.primaryColor,
           ),
         ],
       ),
@@ -591,9 +572,10 @@ class _SmsScanScreenState extends State<SmsScanScreen> {
   // 구독 표시 상태 UI
   Widget _buildSubscriptionState() {
     if (_currentIndex >= _scannedSubscriptions.length) {
-      return const Center(
-        child: ThemedText('모든 구독 처리 완료'),
-      );
+      // 처리 완료 후 초기 상태로 복귀
+      _scannedSubscriptions = [];
+      _currentIndex = 0;
+      return _buildInitialState(); // 스캔 버튼이 있는 초기 화면으로 돌아감
     }
 
     final subscription = _scannedSubscriptions[_currentIndex];
@@ -609,7 +591,7 @@ class _SmsScanScreenState extends State<SmsScanScreen> {
         // 진행 상태 표시
         LinearProgressIndicator(
           value: (_currentIndex + 1) / _scannedSubscriptions.length,
-          backgroundColor: Colors.grey.withValues(alpha: 0.2),
+          backgroundColor: AppColors.navyGray.withValues(alpha: 0.2),
           valueColor: AlwaysStoppedAnimation<Color>(
               Theme.of(context).colorScheme.primary),
         ),
@@ -618,6 +600,7 @@ class _SmsScanScreenState extends State<SmsScanScreen> {
           '${_currentIndex + 1}/${_scannedSubscriptions.length}',
           fontWeight: FontWeight.w500,
           opacity: 0.7,
+          forceDark: true,
         ),
         const SizedBox(height: 24),
 
@@ -632,6 +615,7 @@ class _SmsScanScreenState extends State<SmsScanScreen> {
                   '다음 구독을 찾았습니다',
                   fontSize: 18,
                   fontWeight: FontWeight.bold,
+                  forceDark: true,
                 ),
                 const SizedBox(height: 24),
                 // 서비스명
@@ -639,12 +623,14 @@ class _SmsScanScreenState extends State<SmsScanScreen> {
                   '서비스명',
                   fontWeight: FontWeight.w500,
                   opacity: 0.7,
+                  forceDark: true,
                 ),
                 const SizedBox(height: 4),
                 ThemedText(
                   subscription.serviceName,
                   fontSize: 22,
                   fontWeight: FontWeight.bold,
+                  forceDark: true,
                 ),
                 const SizedBox(height: 16),
 
@@ -659,6 +645,7 @@ class _SmsScanScreenState extends State<SmsScanScreen> {
                             '월 비용',
                             fontWeight: FontWeight.w500,
                             opacity: 0.7,
+                            forceDark: true,
                           ),
                           const SizedBox(height: 4),
                           ThemedText(
@@ -675,6 +662,7 @@ class _SmsScanScreenState extends State<SmsScanScreen> {
                                   ).format(subscription.monthlyCost),
                             fontSize: 18,
                             fontWeight: FontWeight.bold,
+                            forceDark: true,
                           ),
                         ],
                       ),
@@ -687,6 +675,7 @@ class _SmsScanScreenState extends State<SmsScanScreen> {
                             '반복 횟수',
                             fontWeight: FontWeight.w500,
                             opacity: 0.7,
+                            forceDark: true,
                           ),
                           const SizedBox(height: 4),
                           ThemedText(
@@ -713,12 +702,14 @@ class _SmsScanScreenState extends State<SmsScanScreen> {
                             '결제 주기',
                             fontWeight: FontWeight.w500,
                             opacity: 0.7,
+                            forceDark: true,
                           ),
                           const SizedBox(height: 4),
                           ThemedText(
                             subscription.billingCycle,
                             fontSize: 16,
                             fontWeight: FontWeight.w500,
+                            forceDark: true,
                           ),
                         ],
                       ),
@@ -731,12 +722,14 @@ class _SmsScanScreenState extends State<SmsScanScreen> {
                             '결제일',
                             fontWeight: FontWeight.w500,
                             opacity: 0.7,
+                            forceDark: true,
                           ),
                           const SizedBox(height: 4),
                           ThemedText(
                             _getNextBillingText(subscription.nextBillingDate),
                             fontSize: 14,
                             fontWeight: FontWeight.w500,
+                            forceDark: true,
                           ),
                         ],
                       ),
@@ -746,17 +739,18 @@ class _SmsScanScreenState extends State<SmsScanScreen> {
                 const SizedBox(height: 24),
 
                 // 웹사이트 URL 입력 필드 추가/수정
-                Padding(
-                  padding: const EdgeInsets.all(8.0),
-                  child: TextField(
-                    controller: _websiteUrlController,
-                    decoration: const InputDecoration(
-                      labelText: '웹사이트 URL (자동 추출됨)',
-                      hintText: '웹사이트 URL을 수정하거나 비워두세요',
-                      prefixIcon: Icon(Icons.language),
-                      border: OutlineInputBorder(),
-                    ),
+                BaseTextField(
+                  controller: _websiteUrlController,
+                  label: '웹사이트 URL (자동 추출됨)',
+                  hintText: '웹사이트 URL을 수정하거나 비워두세요',
+                  prefixIcon: Icon(
+                    Icons.language,
+                    color: AppColors.navyGray,
                   ),
+                  style: TextStyle(
+                    color: AppColors.darkNavy,
+                  ),
+                  fillColor: AppColors.pureWhite.withValues(alpha: 0.8),
                 ),
                 const SizedBox(height: 32),
 
@@ -764,22 +758,18 @@ class _SmsScanScreenState extends State<SmsScanScreen> {
                 Row(
                   children: [
                     Expanded(
-                      child: OutlinedButton(
+                      child: SecondaryButton(
+                        text: '건너뛰기',
                         onPressed: _skipCurrentSubscription,
-                        style: OutlinedButton.styleFrom(
-                          padding: const EdgeInsets.symmetric(vertical: 12),
-                        ),
-                        child: const Text('건너뛰기'),
+                        height: 48,
                       ),
                     ),
                     const SizedBox(width: 16),
                     Expanded(
-                      child: ElevatedButton(
+                      child: PrimaryButton(
+                        text: '추가하기',
                         onPressed: _addCurrentSubscription,
-                        style: ElevatedButton.styleFrom(
-                          padding: const EdgeInsets.symmetric(vertical: 12),
-                        ),
-                        child: const Text('추가하기'),
+                        height: 48,
                       ),
                     ),
                   ],

lib/screens/splash_screen.dart

@@ -135,7 +135,7 @@ class _SplashScreenState extends State<SplashScreen>
           // 글래스모피즘 오버레이
           Container(
             decoration: BoxDecoration(
-              color: Colors.white.withValues(alpha: 0.05),
+              color: AppColors.pureWhite.withValues(alpha: 0.05),
             ),
           ),
           Stack(
@@ -188,8 +188,8 @@ class _SplashScreenState extends State<SplashScreen>
                     shape: BoxShape.circle,
                     gradient: RadialGradient(
                       colors: [
-                        Colors.white.withValues(alpha: 0.1),
-                        Colors.white.withValues(alpha: 0.0),
+                        AppColors.pureWhite.withValues(alpha: 0.1),
+                        AppColors.pureWhite.withValues(alpha: 0.0),
                       ],
                       stops: const [0.2, 1.0],
                     ),
@@ -208,8 +208,8 @@ class _SplashScreenState extends State<SplashScreen>
                     shape: BoxShape.circle,
                     gradient: RadialGradient(
                       colors: [
-                        Colors.white.withValues(alpha: 0.07),
-                        Colors.white.withValues(alpha: 0.0),
+                        AppColors.pureWhite.withValues(alpha: 0.07),
+                        AppColors.pureWhite.withValues(alpha: 0.0),
                       ],
                       stops: const [0.4, 1.0],
                     ),
@@ -250,23 +250,22 @@ class _SplashScreenState extends State<SplashScreen>
                                                   begin: Alignment.topLeft,
                                                   end: Alignment.bottomRight,
                                                   colors: [
-                                                    Colors.white
+                                                    AppColors.pureWhite
                                                         .withValues(alpha: 0.2),
-                                                    Colors.white
+                                                    AppColors.pureWhite
                                                         .withValues(alpha: 0.1),
                                                   ],
                                                 ),
                                                 borderRadius:
                                                     BorderRadius.circular(30),
                                                 border: Border.all(
-                                                  color: Colors.white
+                                                  color: AppColors.pureWhite
                                                       .withValues(alpha: 0.3),
                                                   width: 1.5,
                                                 ),
                                                 boxShadow: [
                                                   BoxShadow(
-                                                    color: Colors.black
-                                                        .withValues(alpha: 0.1),
+                                                    color: AppColors.shadowBlack,
                                                     spreadRadius: 0,
                                                     blurRadius: 30,
                                                     offset: const Offset(0, 10),
@@ -323,12 +322,12 @@ class _SplashScreenState extends State<SplashScreen>
                                 ),
                               );
                             },
-                            child: const Text(
+                            child: Text(
                               'SubManager',
                               style: TextStyle(
                                 fontSize: 36,
                                 fontWeight: FontWeight.bold,
-                                color: Colors.white,
+                                color: AppColors.pureWhite,
                                 letterSpacing: 1.2,
                               ),
                             ),
@@ -349,11 +348,11 @@ class _SplashScreenState extends State<SplashScreen>
                                 ),
                               );
                             },
-                            child: const Text(
+                            child: Text(
                               '구독 서비스 관리를 더 쉽게',
                               style: TextStyle(
                                 fontSize: 16,
-                                color: Colors.white70,
+                                color: AppColors.pureWhite.withValues(alpha: 0.7),
                                 letterSpacing: 0.5,
                               ),
                             ),
@@ -374,17 +373,17 @@ class _SplashScreenState extends State<SplashScreen>
                                   height: 60,
                                   padding: const EdgeInsets.all(6),
                                   decoration: BoxDecoration(
-                                    color: Colors.white.withValues(alpha: 0.1),
+                                    color: AppColors.pureWhite.withValues(alpha: 0.1),
                                     borderRadius: BorderRadius.circular(50),
                                     border: Border.all(
                                       color:
-                                          Colors.white.withValues(alpha: 0.2),
+                                          AppColors.pureWhite.withValues(alpha: 0.2),
                                       width: 1,
                                     ),
                                   ),
-                                  child: const CircularProgressIndicator(
+                                  child: CircularProgressIndicator(
                                     valueColor: AlwaysStoppedAnimation<Color>(
-                                        Colors.white),
+                                        AppColors.pureWhite),
                                     strokeWidth: 3,
                                   ),
                                 ),
@@ -401,11 +400,11 @@ class _SplashScreenState extends State<SplashScreen>
                     padding: const EdgeInsets.only(bottom: 24.0),
                     child: FadeTransition(
                       opacity: _fadeAnimation,
-                      child: const Text(
+                      child: Text(
                         '© 2023 CClabs. All rights reserved.',
                         style: TextStyle(
                           fontSize: 12,
-                          color: Colors.white60,
+                          color: AppColors.pureWhite.withValues(alpha: 0.6),
                           letterSpacing: 0.5,
                         ),
                       ),

lib/theme/app_colors.dart

@@ -2,12 +2,12 @@ import 'package:flutter/material.dart';
 
 class AppColors {
   // 메인 컬러 (Metronic Tailwind 스타일)
-  static const primaryColor = Color(0xFF3B82F6); // 메트로닉 블루
-  static const secondaryColor = Color(0xFF64748B); // 슬레이트 600
-  static const successColor = Color(0xFF10B981); // 그린
+  static const primaryColor = Color(0xFF2563EB); // 딥 블루
+  static const secondaryColor = Color(0xFF60A5FA); // 스카이 블루
+  static const successColor = Color(0xFF38BDF8); // 소프트 민트
   static const infoColor = Color(0xFF6366F1); // 인디고
   static const warningColor = Color(0xFFF59E0B); // 앰버
-  static const dangerColor = Color(0xFFEF4444); // 레드
+  static const dangerColor = Color(0xFFF472B6); // 핑크 액센트
 
   // 배경색
   static const backgroundColor = Color(0xFFF1F5F9); // 슬레이트 100
@@ -17,18 +17,24 @@ class AppColors {
 
   // 텍스트 컬러
   static const textPrimary = Color(0xFF1E293B); // 슬레이트 800
-  static const textSecondary = Color(0xFF64748B); // 슬레이트 600
-  static const textMuted = Color(0xFF94A3B8); // 슬레이트 400
+  static const darkNavy = Color(0xFF1E293B); // 메인 텍스트 (color.md 가이드)
+  static const textSecondary = Color(0xFF334155); // 네이비 그레이
+  static const navyGray = Color(0xFF334155); // 서브 텍스트 (color.md 가이드)
+  static const textMuted = Color(0xFF334155); // 네이비 그레이
   static const textLight = Color(0xFFFFFFFF); // 화이트
+  static const pureWhite = Color(0xFFFFFFFF); // 버튼 텍스트용 (color.md 가이드)
 
   // 보더 & 디바이더
   static const borderColor = Color(0xFFE2E8F0); // 슬레이트 200
   static const dividerColor = Color(0xFFE2E8F0); // 슬레이트 200
+  
+  // 그림자 (color.md 가이드)
+  static const shadowBlack = Color(0x14000000); // rgba(0,0,0,0.08) - 8% opacity
 
   // 그라데이션 컬러 - 다양한 효과를 위한 조합
   static const List<Color> blueGradient = [
-    Color(0xFF3B82F6),
-    Color(0xFF2563EB)
+    Color(0xFF2563EB), // 딥 블루
+    Color(0xFF60A5FA)  // 스카이 블루
   ];
   static const List<Color> tealGradient = [
     Color(0xFF14B8A6),
@@ -48,10 +54,10 @@ class AppColors {
   ];
 
   // Glassmorphism 효과를 위한 색상
-  static const glassSurface = Color(0x0FFFFFFF); // 매우 연한 흰색 (6% opacity)
-  static const glassBackground = Color(0x1AFFFFFF); // 연한 흰색 (10% opacity)
+  static const glassSurface = Color(0x33FFFFFF); // 화이트 글래스 (20% opacity)
+  static const glassBackground = Color(0x33FFFFFF); // 화이트 글래스 (20% opacity)
   static const glassCard = Color(0x33FFFFFF); // 반투명 흰색 (20% opacity)
-  static const glassBorder = Color(0x4DFFFFFF); // 반투명 테두리 (30% opacity)
+  static const glassBorder = Color(0xFF2563EB); // 딥 블루 테두리
   static const glassOverlay = Color(0x0D000000); // 연한 검정 오버레이 (5% opacity)
   
   // 다크 모드용 Glassmorphism 색상
@@ -62,8 +68,8 @@ class AppColors {
   
   // 백드롭 블러 효과를 위한 그라디언트
   static const List<Color> glassGradient = [
+    Color(0x33FFFFFF), // 20% white
     Color(0x1AFFFFFF), // 10% white
-    Color(0x0FFFFFFF), // 6% white
   ];
   
   static const List<Color> glassGradientDark = [
@@ -71,6 +77,18 @@ class AppColors {
     Color(0x0F000000), // 6% black
   ];
   
+  // 메인 그라데이션
+  static const List<Color> mainGradient = [
+    Color(0xFF2563EB), // 딥 블루
+    Color(0xFF60A5FA), // 스카이 블루
+    Color(0xFFE0E7EF), // 라이트 그레이
+  ];
+  
+  static const List<Color> accentGradient = [
+    Color(0xFF38BDF8), // 소프트 민트
+    Color(0xFF60A5FA), // 스카이 블루
+  ];
+  
   // 시간대별 배경 그라디언트
   static const List<Color> morningGradient = [
     Color(0xFFFED7AA), // 따뜻한 오렌지

lib/theme/app_theme.dart

@@ -17,22 +17,22 @@ class AppTheme {
     // 기본 배경색
     scaffoldBackgroundColor: AppColors.backgroundColor,
 
-    // 카드 스타일 - 부드러운 그림자, 둥근 모서리
+    // 카드 스타일 - 글래스모피즘 효과
     cardTheme: CardTheme(
-      color: AppColors.cardColor,
-      elevation: 1,
-      shadowColor: Colors.black.withValues(alpha: 0.04),
+      color: AppColors.glassCard,
+      elevation: 0,
+      shadowColor: AppColors.shadowBlack,
       shape: RoundedRectangleBorder(
         borderRadius: BorderRadius.circular(16),
-        side: const BorderSide(color: AppColors.borderColor, width: 0.5),
+        side: const BorderSide(color: AppColors.glassBorder, width: 1),
       ),
       clipBehavior: Clip.antiAlias,
       margin: const EdgeInsets.symmetric(vertical: 8, horizontal: 16),
     ),
 
-    // 앱바 스타일 - 깔끔하고 투명한 디자인
+    // 앱바 스타일 - 글래스모피즘 디자인
     appBarTheme: const AppBarTheme(
-      backgroundColor: AppColors.surfaceColor,
+      backgroundColor: Colors.transparent,
       foregroundColor: AppColors.textPrimary,
       elevation: 0,
       centerTitle: false,
@@ -43,7 +43,7 @@ class AppTheme {
         letterSpacing: -0.2,
       ),
       iconTheme: const IconThemeData(
-        color: AppColors.secondaryColor,
+        color: AppColors.primaryColor,
         size: 24,
       ),
     ),
@@ -52,21 +52,21 @@ class AppTheme {
     textTheme: const TextTheme(
       // 헤드라인 - 페이지 제목
       headlineLarge: const TextStyle(
-        color: AppColors.textPrimary,
+        color: AppColors.darkNavy,  // color.md 가이드: 메인 텍스트
         fontSize: 32,
         fontWeight: FontWeight.w700,
         letterSpacing: -0.5,
         height: 1.2,
       ),
       headlineMedium: const TextStyle(
-        color: AppColors.textPrimary,
+        color: AppColors.darkNavy,  // color.md 가이드: 메인 텍스트
         fontSize: 28,
         fontWeight: FontWeight.w700,
         letterSpacing: -0.5,
         height: 1.2,
       ),
       headlineSmall: const TextStyle(
-        color: AppColors.textPrimary,
+        color: AppColors.darkNavy,  // color.md 가이드: 메인 텍스트
         fontSize: 24,
         fontWeight: FontWeight.w600,
         letterSpacing: -0.25,
@@ -75,21 +75,21 @@ class AppTheme {
 
       // 타이틀 - 카드, 섹션 제목
       titleLarge: const TextStyle(
-        color: AppColors.textPrimary,
+        color: AppColors.darkNavy,  // color.md 가이드: 메인 텍스트
         fontSize: 20,
         fontWeight: FontWeight.w600,
         letterSpacing: -0.2,
         height: 1.4,
       ),
       titleMedium: TextStyle(
-        color: AppColors.textPrimary,
+        color: AppColors.darkNavy,  // color.md 가이드: 메인 텍스트
         fontSize: 18,
         fontWeight: FontWeight.w600,
         letterSpacing: -0.1,
         height: 1.4,
       ),
       titleSmall: TextStyle(
-        color: AppColors.textPrimary,
+        color: AppColors.darkNavy,  // color.md 가이드: 메인 텍스트
         fontSize: 16,
         fontWeight: FontWeight.w600,
         letterSpacing: 0,
@@ -98,21 +98,21 @@ class AppTheme {
 
       // 본문 텍스트
       bodyLarge: TextStyle(
-        color: AppColors.textPrimary,
+        color: AppColors.darkNavy,  // color.md 가이드: 메인 텍스트
         fontSize: 16,
         fontWeight: FontWeight.w400,
         letterSpacing: 0.1,
         height: 1.5,
       ),
       bodyMedium: TextStyle(
-        color: AppColors.textSecondary,
+        color: AppColors.navyGray,  // color.md 가이드: 서브 텍스트
         fontSize: 14,
         fontWeight: FontWeight.w400,
         letterSpacing: 0.1,
         height: 1.5,
       ),
       bodySmall: TextStyle(
-        color: AppColors.textMuted,
+        color: AppColors.navyGray,  // color.md 가이드: 서브 텍스트
         fontSize: 12,
         fontWeight: FontWeight.w400,
         letterSpacing: 0.2,
@@ -121,21 +121,21 @@ class AppTheme {
 
       // 라벨 텍스트
       labelLarge: TextStyle(
-        color: AppColors.textPrimary,
+        color: AppColors.darkNavy,  // color.md 가이드: 메인 텍스트
         fontSize: 14,
         fontWeight: FontWeight.w600,
         letterSpacing: 0.1,
         height: 1.4,
       ),
       labelMedium: TextStyle(
-        color: AppColors.textSecondary,
+        color: AppColors.navyGray,  // color.md 가이드: 서브 텍스트
         fontSize: 12,
         fontWeight: FontWeight.w600,
         letterSpacing: 0.2,
         height: 1.4,
       ),
       labelSmall: TextStyle(
-        color: AppColors.textMuted,
+        color: AppColors.navyGray,  // color.md 가이드: 서브 텍스트
         fontSize: 11,
         fontWeight: FontWeight.w500,
         letterSpacing: 0.2,
@@ -143,10 +143,10 @@ class AppTheme {
       ),
     ),
 
-    // 입력 필드 스타일 - 깔끔하고 현대적인 디자인
+    // 입력 필드 스타일 - 글래스모피즘 디자인
     inputDecorationTheme: InputDecorationTheme(
       filled: true,
-      fillColor: AppColors.surfaceColorAlt,
+      fillColor: AppColors.glassBackground,
       contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 16),
       border: OutlineInputBorder(
         borderRadius: BorderRadius.circular(12),
@@ -154,7 +154,7 @@ class AppTheme {
       ),
       enabledBorder: OutlineInputBorder(
         borderRadius: BorderRadius.circular(12),
-        borderSide: const BorderSide(color: AppColors.borderColor, width: 1),
+        borderSide: const BorderSide(color: AppColors.textSecondary, width: 1),
       ),
       focusedBorder: OutlineInputBorder(
         borderRadius: BorderRadius.circular(12),
@@ -224,13 +224,13 @@ class AppTheme {
     // 아웃라인 버튼 스타일
     outlinedButtonTheme: OutlinedButtonThemeData(
       style: OutlinedButton.styleFrom(
-        foregroundColor: AppColors.textPrimary,
+        foregroundColor: AppColors.primaryColor,
         minimumSize: const Size(0, 48),
         padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 12),
         shape: RoundedRectangleBorder(
           borderRadius: BorderRadius.circular(12),
         ),
-        side: const BorderSide(color: AppColors.borderColor, width: 1),
+        side: const BorderSide(color: AppColors.secondaryColor, width: 1),
         textStyle: const TextStyle(
           fontSize: 15,
           fontWeight: FontWeight.w600,
@@ -265,7 +265,7 @@ class AppTheme {
       }),
       trackColor: MaterialStateProperty.resolveWith<Color>((states) {
         if (states.contains(MaterialState.selected)) {
-          return AppColors.primaryColor.withValues(alpha: 0.5);
+          return AppColors.secondaryColor.withValues(alpha: 0.5);
         }
         return AppColors.borderColor;
       }),
@@ -282,7 +282,7 @@ class AppTheme {
       shape: RoundedRectangleBorder(
         borderRadius: BorderRadius.circular(4),
       ),
-      side: const BorderSide(color: AppColors.borderColor, width: 1.5),
+      side: const BorderSide(color: AppColors.secondaryColor, width: 1.5),
     ),
 
     // 라디오 버튼 스타일
@@ -291,16 +291,16 @@ class AppTheme {
         if (states.contains(MaterialState.selected)) {
           return AppColors.primaryColor;
         }
-        return AppColors.borderColor;
+        return AppColors.textSecondary;
       }),
     ),
 
     // 슬라이더 스타일
     sliderTheme: SliderThemeData(
       activeTrackColor: AppColors.primaryColor,
-      inactiveTrackColor: AppColors.borderColor,
+      inactiveTrackColor: AppColors.textSecondary,
       thumbColor: AppColors.primaryColor,
-      overlayColor: AppColors.primaryColor.withValues(alpha: 0.2),
+      overlayColor: AppColors.primaryColor.withValues(alpha: 0.3),
       trackHeight: 4,
       thumbShape: const RoundSliderThumbShape(enabledThumbRadius: 10),
       overlayShape: const RoundSliderOverlayShape(overlayRadius: 20),

lib/widgets/add_subscription/add_subscription_app_bar.dart

@@ -26,11 +26,11 @@ class AddSubscriptionAppBar extends StatelessWidget implements PreferredSizeWidg
 
     return Container(
       decoration: BoxDecoration(
-        color: Colors.white.withOpacity(appBarOpacity),
+        color: Colors.white.withValues(alpha: appBarOpacity),
         boxShadow: appBarOpacity > 0.6
             ? [
                 BoxShadow(
-                  color: Colors.black.withOpacity(0.1 * appBarOpacity),
+                  color: Colors.black.withValues(alpha: 0.1 * appBarOpacity),
                   spreadRadius: 1,
                   blurRadius: 8,
                   offset: const Offset(0, 4),
@@ -51,7 +51,7 @@ class AddSubscriptionAppBar extends StatelessWidget implements PreferredSizeWidg
               shadows: appBarOpacity > 0.6
                   ? [
                       Shadow(
-                        color: Colors.black.withOpacity(0.2),
+                        color: Colors.black.withValues(alpha: 0.2),
                         offset: const Offset(0, 1),
                         blurRadius: 2,
                       )

lib/widgets/add_subscription/add_subscription_event_section.dart

@@ -44,7 +44,7 @@ class AddSubscriptionEventSection extends StatelessWidget {
             border: Border.all(
               color: controller.isEventActive 
                   ? const Color(0xFF3B82F6) 
-                  : Colors.grey.withOpacity(0.2),
+                  : Colors.grey.withValues(alpha: 0.2),
               width: controller.isEventActive ? 2 : 1,
             ),
           ),

lib/widgets/add_subscription/add_subscription_form.dart

@@ -297,7 +297,7 @@ class _CurrencyOption extends StatelessWidget {
           decoration: BoxDecoration(
             color: isSelected 
                 ? const Color(0xFF3B82F6)
-                : Colors.grey.withOpacity(0.1),
+                : Colors.grey.withValues(alpha: 0.1),
             borderRadius: BorderRadius.circular(12),
           ),
           child: Center(
@@ -350,7 +350,7 @@ class _BillingCycleSelector extends StatelessWidget {
                 decoration: BoxDecoration(
                   color: isSelected 
                       ? gradientColors[0]
-                      : Colors.grey.withOpacity(0.1),
+                      : Colors.grey.withValues(alpha: 0.1),
                   borderRadius: BorderRadius.circular(12),
                 ),
                 child: Text(
@@ -402,14 +402,14 @@ class _CategorySelector extends StatelessWidget {
             decoration: BoxDecoration(
               color: isSelected 
                   ? gradientColors[0]
-                  : Colors.grey.withOpacity(0.1),
+                  : Colors.grey.withValues(alpha: 0.1),
               borderRadius: BorderRadius.circular(12),
             ),
             child: Row(
               mainAxisSize: MainAxisSize.min,
               children: [
                 Text(
-                  category.emoji,
+                  category.icon,
                   style: const TextStyle(fontSize: 16),
                 ),
                 const SizedBox(width: 6),

lib/widgets/add_subscription/add_subscription_header.dart

@@ -32,7 +32,7 @@ class AddSubscriptionHeader extends StatelessWidget {
             ),
             boxShadow: [
               BoxShadow(
-                color: controller.gradientColors[0].withOpacity(0.3),
+                color: controller.gradientColors[0].withValues(alpha: 0.3),
                 blurRadius: 20,
                 spreadRadius: 0,
                 offset: const Offset(0, 8),
@@ -44,7 +44,7 @@ class AddSubscriptionHeader extends StatelessWidget {
               Container(
                 padding: const EdgeInsets.all(16),
                 decoration: BoxDecoration(
-                  color: Colors.white.withOpacity(0.2),
+                  color: Colors.white.withValues(alpha: 0.2),
                   borderRadius: BorderRadius.circular(16),
                 ),
                 child: const Icon(

lib/widgets/analysis/analysis_badge.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:fl_chart/fl_chart.dart';
 import '../../models/subscription_model.dart';
 import '../../services/currency_util.dart';
+import '../../theme/app_colors.dart';
 
 /// 파이 차트에서 선택된 섹션에 표시되는 배지 위젯
 class AnalysisBadge extends StatelessWidget {
@@ -23,7 +24,7 @@ class AnalysisBadge extends StatelessWidget {
       width: size,
       height: size,
       decoration: BoxDecoration(
-        color: Colors.white,
+        color: AppColors.pureWhite,
         shape: BoxShape.circle,
         border: Border.all(
           color: borderColor,
@@ -31,7 +32,7 @@ class AnalysisBadge extends StatelessWidget {
         ),
         boxShadow: [
           BoxShadow(
-            color: Colors.black.withValues(alpha: 0.5),
+            color: AppColors.shadowBlack,
             blurRadius: 10,
             spreadRadius: 2,
           ),
@@ -48,7 +49,7 @@ class AnalysisBadge extends StatelessWidget {
               style: const TextStyle(
                 fontSize: 8,
                 fontWeight: FontWeight.bold,
-                color: Colors.black87,
+                color: AppColors.darkNavy,
               ),
             ),
             const SizedBox(height: 2),
@@ -68,7 +69,7 @@ class AnalysisBadge extends StatelessWidget {
                     displayText,
                     style: const TextStyle(
                       fontSize: 7,
-                      color: Colors.black54,
+                      color: AppColors.navyGray,
                     ),
                   );
                 }

lib/widgets/analysis/event_analysis_card.dart

@@ -3,6 +3,7 @@ import 'package:font_awesome_flutter/font_awesome_flutter.dart';
 import 'package:provider/provider.dart';
 import '../../providers/subscription_provider.dart';
 import '../../services/currency_util.dart';
+import '../../theme/app_colors.dart';
 import '../glassmorphism_card.dart';
 import '../themed_text.dart';
 
@@ -73,7 +74,7 @@ class EventAnalysisCard extends StatelessWidget {
                                         const FaIcon(
                                           FontAwesomeIcons.fire,
                                           size: 12,
-                                          color: Colors.white,
+                                          color: AppColors.pureWhite,
                                         ),
                                         const SizedBox(width: 4),
                                         Text(
@@ -81,7 +82,7 @@ class EventAnalysisCard extends StatelessWidget {
                                           style: const TextStyle(
                                             fontSize: 12,
                                             fontWeight: FontWeight.bold,
-                                            color: Colors.white,
+                                            color: AppColors.pureWhite,
                                           ),
                                         ),
                                       ],
@@ -159,10 +160,10 @@ class EventAnalysisCard extends StatelessWidget {
                                   margin: const EdgeInsets.only(bottom: 8),
                                   padding: const EdgeInsets.all(12),
                                   decoration: BoxDecoration(
-                                    color: Colors.white.withValues(alpha: 0.05),
+                                    color: AppColors.darkNavy.withValues(alpha: 0.05),
                                     borderRadius: BorderRadius.circular(8),
                                     border: Border.all(
-                                      color: Colors.white.withValues(alpha: 0.1),
+                                      color: AppColors.darkNavy.withValues(alpha: 0.1),
                                     ),
                                   ),
                                   child: Row(
@@ -194,7 +195,7 @@ class EventAnalysisCard extends StatelessWidget {
                                                           fontSize: 12,
                                                           decoration: TextDecoration
                                                               .lineThrough,
-                                                          color: Colors.grey,
+                                                          color: AppColors.navyGray,
                                                         ),
                                                       );
                                                     }
@@ -205,7 +206,7 @@ class EventAnalysisCard extends StatelessWidget {
                                                 const Icon(
                                                   Icons.arrow_forward,
                                                   size: 12,
-                                                  color: Colors.grey,
+                                                  color: AppColors.navyGray,
                                                 ),
                                                 const SizedBox(width: 8),
                                                 FutureBuilder<String>(

lib/widgets/analysis/monthly_expense_chart_card.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:fl_chart/fl_chart.dart';
 import 'dart:math' as math;
 import '../../services/currency_util.dart';
+import '../../theme/app_colors.dart';
 import '../glassmorphism_card.dart';
 import '../themed_text.dart';
 
@@ -44,7 +45,7 @@ class MonthlyExpenseChartCard extends StatelessWidget {
               backDrawRodData: BackgroundBarChartRodData(
                 show: true,
                 toY: maxAmount + (maxAmount * 0.1),
-                color: Colors.grey.withValues(alpha: 0.1),
+                color: AppColors.navyGray.withValues(alpha: 0.1),
               ),
             ),
           ],
@@ -124,7 +125,7 @@ class MonthlyExpenseChartCard extends StatelessWidget {
                             ),
                             getDrawingHorizontalLine: (value) {
                               return FlLine(
-                                color: Colors.grey.withValues(alpha: 0.1),
+                                color: AppColors.navyGray.withValues(alpha: 0.1),
                                 strokeWidth: 1,
                               );
                             },
@@ -163,14 +164,14 @@ class MonthlyExpenseChartCard extends StatelessWidget {
                           barTouchData: BarTouchData(
                             enabled: true,
                             touchTooltipData: BarTouchTooltipData(
-                              tooltipBgColor: Colors.blueGrey.shade800,
+                              tooltipBgColor: AppColors.darkNavy,
                               tooltipRoundedRadius: 8,
                               getTooltipItem:
                                   (group, groupIndex, rod, rodIndex) {
                                 return BarTooltipItem(
                                   '${monthlyData[group.x]['monthName']}\n',
                                   const TextStyle(
-                                    color: Colors.white,
+                                    color: AppColors.pureWhite,
                                     fontWeight: FontWeight.bold,
                                   ),
                                   children: [
@@ -179,7 +180,7 @@ class MonthlyExpenseChartCard extends StatelessWidget {
                                           monthlyData[group.x]['totalExpense']
                                               as double),
                                       style: const TextStyle(
-                                        color: Colors.yellow,
+                                        color: Color(0xFFFBBF24),
                                         fontSize: 14,
                                         fontWeight: FontWeight.w500,
                                       ),

lib/widgets/analysis/subscription_pie_chart_card.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:fl_chart/fl_chart.dart';
 import '../../models/subscription_model.dart';
 import '../../services/currency_util.dart';
+import '../../theme/app_colors.dart';
 import '../glassmorphism_card.dart';
 import '../themed_text.dart';
 import 'analysis_badge.dart';
@@ -68,7 +69,7 @@ class SubscriptionPieChartCard extends StatelessWidget {
         titleStyle: TextStyle(
           fontSize: fontSize,
           fontWeight: FontWeight.bold,
-          color: Colors.white,
+          color: AppColors.pureWhite,
           shadows: const [
             Shadow(color: Colors.black26, blurRadius: 2, offset: Offset(0, 1))
           ],

lib/widgets/analysis/total_expense_summary_card.dart

@@ -139,7 +139,7 @@ class TotalExpenseSummaryCard extends StatelessWidget {
                                     child: const FaIcon(
                                       FontAwesomeIcons.listCheck,
                                       size: 16,
-                                      color: Colors.blue,
+                                      color: AppColors.primaryColor,
                                     ),
                                   ),
                                   const SizedBox(width: 12),
@@ -181,7 +181,7 @@ class TotalExpenseSummaryCard extends StatelessWidget {
                                     child: const FaIcon(
                                       FontAwesomeIcons.chartLine,
                                       size: 16,
-                                      color: Colors.green,
+                                      color: AppColors.successColor,
                                     ),
                                   ),
                                   const SizedBox(width: 12),

lib/widgets/common/buttons/danger_button.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import '../../../theme/app_colors.dart';
 
 /// 위험한 액션에 사용되는 Danger 버튼
 /// 삭제, 취소, 종료 등의 위험한 액션에 사용됩니다.
@@ -39,7 +40,7 @@ class DangerButton extends StatefulWidget {
 class _DangerButtonState extends State<DangerButton> {
   bool _isHovered = false;
   
-  static const Color _dangerColor = Color(0xFFDC2626);
+  static const Color _dangerColor = AppColors.dangerColor;
 
   Future<void> _handlePress() async {
     if (widget.requireConfirmation) {
@@ -62,7 +63,7 @@ class _DangerButtonState extends State<DangerButton> {
               Container(
                 padding: const EdgeInsets.all(16),
                 decoration: BoxDecoration(
-                  color: _dangerColor.withOpacity(0.1),
+                  color: _dangerColor.withValues(alpha: 0.1),
                   borderRadius: BorderRadius.circular(12),
                 ),
                 child: Icon(
@@ -98,7 +99,7 @@ class _DangerButtonState extends State<DangerButton> {
               ),
               child: Text(
                 widget.text,
-                style: const TextStyle(color: Colors.white),
+                style: const TextStyle(color: AppColors.pureWhite),
               ),
             ),
           ],
@@ -126,14 +127,14 @@ class _DangerButtonState extends State<DangerButton> {
         onPressed: widget.onPressed != null ? _handlePress : null,
         style: ElevatedButton.styleFrom(
           backgroundColor: _dangerColor,
-          foregroundColor: Colors.white,
+          foregroundColor: AppColors.pureWhite,
           shape: RoundedRectangleBorder(
             borderRadius: BorderRadius.circular(widget.borderRadius),
           ),
           padding: widget.padding ?? const EdgeInsets.symmetric(vertical: 16),
-          elevation: widget.enableHoverEffect && _isHovered ? 8 : 4,
-          shadowColor: _dangerColor.withOpacity(0.5),
-          disabledBackgroundColor: _dangerColor.withOpacity(0.6),
+          elevation: widget.enableHoverEffect && _isHovered ? 2 : 0,
+          shadowColor: Colors.black.withValues(alpha: 0.08),
+          disabledBackgroundColor: _dangerColor.withValues(alpha: 0.6),
         ),
         child: Row(
           mainAxisAlignment: MainAxisAlignment.center,
@@ -142,7 +143,7 @@ class _DangerButtonState extends State<DangerButton> {
             if (widget.icon != null) ...[
               Icon(
                 widget.icon,
-                color: Colors.white,
+                color: AppColors.pureWhite,
                 size: _isHovered ? 24 : 20,
               ),
               const SizedBox(width: 8),
@@ -152,7 +153,7 @@ class _DangerButtonState extends State<DangerButton> {
               style: TextStyle(
                 fontSize: widget.fontSize,
                 fontWeight: FontWeight.w600,
-                color: Colors.white,
+                color: AppColors.pureWhite,
               ),
             ),
           ],

lib/widgets/common/buttons/primary_button.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import '../../../theme/app_colors.dart';
 
 /// 주요 액션에 사용되는 Primary 버튼
 /// 저장, 추가, 확인 등의 주요 액션에 사용됩니다.
@@ -43,7 +44,7 @@ class _PrimaryButtonState extends State<PrimaryButton> {
   Widget build(BuildContext context) {
     final theme = Theme.of(context);
     final effectiveBackgroundColor = widget.backgroundColor ?? theme.primaryColor;
-    final effectiveForegroundColor = widget.foregroundColor ?? Colors.white;
+    final effectiveForegroundColor = widget.foregroundColor ?? AppColors.pureWhite;
 
     Widget button = AnimatedContainer(
       duration: const Duration(milliseconds: 200),
@@ -61,9 +62,9 @@ class _PrimaryButtonState extends State<PrimaryButton> {
             borderRadius: BorderRadius.circular(widget.borderRadius),
           ),
           padding: widget.padding ?? const EdgeInsets.symmetric(vertical: 16),
-          elevation: widget.enableHoverEffect && _isHovered ? 8 : 4,
-          shadowColor: effectiveBackgroundColor.withOpacity(0.5),
-          disabledBackgroundColor: effectiveBackgroundColor.withOpacity(0.6),
+          elevation: widget.enableHoverEffect && _isHovered ? 2 : 0,
+          shadowColor: Colors.black.withValues(alpha: 0.08),
+          disabledBackgroundColor: effectiveBackgroundColor.withValues(alpha: 0.6),
         ),
         child: widget.isLoading
             ? SizedBox(

lib/widgets/common/buttons/secondary_button.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import '../../../theme/app_colors.dart';
 
 /// 부차적인 액션에 사용되는 Secondary 버튼
 /// 취소, 되돌아가기, 부가 옵션 등에 사용됩니다.
@@ -42,10 +43,8 @@ class _SecondaryButtonState extends State<SecondaryButton> {
   @override
   Widget build(BuildContext context) {
     final theme = Theme.of(context);
-    final effectiveBorderColor = widget.borderColor ?? 
-        theme.colorScheme.onSurface.withOpacity(0.2);
-    final effectiveTextColor = widget.textColor ?? 
-        theme.colorScheme.onSurface.withOpacity(0.8);
+    final effectiveBorderColor = widget.borderColor ?? AppColors.secondaryColor;
+    final effectiveTextColor = widget.textColor ?? AppColors.primaryColor;
 
     Widget button = AnimatedContainer(
       duration: const Duration(milliseconds: 200),
@@ -63,7 +62,7 @@ class _SecondaryButtonState extends State<SecondaryButton> {
           ),
           side: BorderSide(
             color: _isHovered 
-                ? effectiveBorderColor.withOpacity(0.4)
+                ? effectiveBorderColor.withValues(alpha: 0.4)
                 : effectiveBorderColor,
             width: widget.borderWidth,
           ),
@@ -72,7 +71,7 @@ class _SecondaryButtonState extends State<SecondaryButton> {
             horizontal: 24,
           ),
           backgroundColor: _isHovered 
-              ? theme.colorScheme.onSurface.withOpacity(0.05)
+              ? AppColors.glassBackground
               : Colors.transparent,
         ),
         child: Row(
@@ -142,13 +141,13 @@ class _TextLinkButtonState extends State<TextLinkButton> {
   @override
   Widget build(BuildContext context) {
     final theme = Theme.of(context);
-    final effectiveColor = widget.color ?? theme.colorScheme.primary;
+    final effectiveColor = widget.color ?? AppColors.primaryColor;
 
     Widget button = AnimatedContainer(
       duration: const Duration(milliseconds: 200),
       decoration: BoxDecoration(
         color: _isHovered 
-            ? theme.colorScheme.onSurface.withOpacity(0.05)
+            ? theme.colorScheme.onSurface.withValues(alpha: 0.05)
             : Colors.transparent,
         borderRadius: BorderRadius.circular(8),
       ),

lib/widgets/common/cards/section_card.dart

@@ -36,7 +36,7 @@ class SectionCard extends StatelessWidget {
     final effectiveBackgroundColor = backgroundColor ?? Colors.white;
     final effectiveShadow = boxShadow ?? [
       BoxShadow(
-        color: Colors.black.withOpacity(0.05),
+        color: Colors.black.withValues(alpha: 0.05),
         blurRadius: 10,
         offset: const Offset(0, 4),
       ),
@@ -116,7 +116,7 @@ class TransparentSectionCard extends StatelessWidget {
     Widget card = Container(
       margin: margin,
       decoration: BoxDecoration(
-        color: Colors.white.withOpacity(opacity),
+        color: Colors.white.withValues(alpha: opacity),
         borderRadius: BorderRadius.circular(borderRadius),
         border: borderColor != null
             ? Border.all(color: borderColor!, width: 1)
@@ -134,7 +134,7 @@ class TransparentSectionCard extends StatelessWidget {
                 style: TextStyle(
                   fontSize: 16,
                   fontWeight: FontWeight.w600,
-                  color: Colors.white.withOpacity(0.9),
+                  color: Colors.white.withValues(alpha: 0.9),
                 ),
               ),
               const SizedBox(height: 12),
@@ -207,7 +207,7 @@ class InfoCard extends StatelessWidget {
                   label,
                   style: TextStyle(
                     fontSize: 14,
-                    color: theme.colorScheme.onSurface.withOpacity(0.6),
+                    color: theme.colorScheme.onSurface.withValues(alpha: 0.6),
                   ),
                 ),
                 const SizedBox(height: 4),

lib/widgets/common/dialogs/confirmation_dialog.dart

@@ -53,7 +53,7 @@ class ConfirmationDialog extends StatelessWidget {
             Container(
               padding: const EdgeInsets.all(16),
               decoration: BoxDecoration(
-                color: (iconColor ?? effectiveConfirmColor).withOpacity(0.1),
+                color: (iconColor ?? effectiveConfirmColor).withValues(alpha: 0.1),
                 borderRadius: BorderRadius.circular(12),
               ),
               child: Icon(
@@ -163,7 +163,7 @@ class SuccessDialog extends StatelessWidget {
           Container(
             padding: const EdgeInsets.all(16),
             decoration: BoxDecoration(
-              color: Colors.green.withOpacity(0.1),
+              color: Colors.green.withValues(alpha: 0.1),
               shape: BoxShape.circle,
             ),
             child: const Icon(
@@ -271,7 +271,7 @@ class ErrorDialog extends StatelessWidget {
           Container(
             padding: const EdgeInsets.all(16),
             decoration: BoxDecoration(
-              color: Colors.red.withOpacity(0.1),
+              color: Colors.red.withValues(alpha: 0.1),
               shape: BoxShape.circle,
             ),
             child: const Icon(

lib/widgets/common/dialogs/loading_overlay.dart

@@ -27,7 +27,7 @@ class LoadingOverlay extends StatelessWidget {
         child,
         if (isLoading)
           Container(
-            color: (backgroundColor ?? Colors.black).withOpacity(opacity),
+            color: (backgroundColor ?? Colors.black).withValues(alpha: opacity),
             child: Center(
               child: Container(
                 padding: const EdgeInsets.all(24),
@@ -36,7 +36,7 @@ class LoadingOverlay extends StatelessWidget {
                   borderRadius: BorderRadius.circular(16),
                   boxShadow: [
                     BoxShadow(
-                      color: Colors.black.withOpacity(0.1),
+                      color: Colors.black.withValues(alpha: 0.1),
                       blurRadius: 10,
                       offset: const Offset(0, 4),
                     ),
@@ -193,7 +193,7 @@ class _CustomLoadingIndicatorState extends State<CustomLoadingIndicator>
                     width: widget.size / 5,
                     height: widget.size / 5,
                     decoration: BoxDecoration(
-                      color: effectiveColor.withOpacity(0.3 + value * 0.7),
+                      color: effectiveColor.withValues(alpha: 0.3 + value * 0.7),
                       shape: BoxShape.circle,
                     ),
                   );
@@ -212,7 +212,7 @@ class _CustomLoadingIndicatorState extends State<CustomLoadingIndicator>
               height: widget.size,
               decoration: BoxDecoration(
                 shape: BoxShape.circle,
-                color: effectiveColor.withOpacity(0.3),
+                color: effectiveColor.withValues(alpha: 0.3),
               ),
               child: Center(
                 child: Container(
@@ -220,7 +220,7 @@ class _CustomLoadingIndicatorState extends State<CustomLoadingIndicator>
                   height: widget.size * (0.3 + _animation.value * 0.5),
                   decoration: BoxDecoration(
                     shape: BoxShape.circle,
-                    color: effectiveColor.withOpacity(1 - _animation.value),
+                    color: effectiveColor.withValues(alpha: 1 - _animation.value),
                   ),
                 ),
               ),

lib/widgets/common/form_fields/base_text_field.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
+import '../../../theme/app_colors.dart';
 
 /// 공통 텍스트 필드 위젯
 /// 프로젝트 전체에서 일관된 스타일의 텍스트 입력 필드를 제공합니다.
@@ -68,7 +69,7 @@ class BaseTextField extends StatelessWidget {
             style: TextStyle(
               fontSize: 16,
               fontWeight: FontWeight.w600,
-              color: theme.colorScheme.onSurface,
+              color: AppColors.textSecondary,
             ),
           ),
           const SizedBox(height: 8),
@@ -91,18 +92,18 @@ class BaseTextField extends StatelessWidget {
           cursorColor: cursorColor ?? theme.primaryColor,
           style: style ?? TextStyle(
             fontSize: 16,
-            color: theme.colorScheme.onSurface,
+            color: AppColors.textPrimary,
           ),
           decoration: InputDecoration(
             hintText: hintText,
             hintStyle: TextStyle(
-              color: theme.colorScheme.onSurface.withOpacity(0.6),
+              color: AppColors.textMuted,
             ),
             prefixIcon: prefixIcon,
             prefixText: prefixText,
             suffixIcon: suffixIcon,
             filled: true,
-            fillColor: fillColor ?? Colors.white,
+            fillColor: fillColor ?? AppColors.glassBackground,
             contentPadding: contentPadding ?? const EdgeInsets.all(16),
             border: OutlineInputBorder(
               borderRadius: BorderRadius.circular(16),
@@ -117,7 +118,10 @@ class BaseTextField extends StatelessWidget {
             ),
             enabledBorder: OutlineInputBorder(
               borderRadius: BorderRadius.circular(16),
-              borderSide: BorderSide.none,
+              borderSide: BorderSide(
+                color: AppColors.textSecondary,
+                width: 1,
+              ),
             ),
             disabledBorder: OutlineInputBorder(
               borderRadius: BorderRadius.circular(16),

lib/widgets/common/form_fields/date_picker_field.dart

@@ -68,7 +68,6 @@ class DatePickerField extends StatelessWidget {
                       surface: Colors.white,
                       onSurface: Colors.black,
                     ),
-                    dialogBackgroundColor: Colors.white,
                   ),
                   child: child!,
                 );
@@ -98,7 +97,7 @@ class DatePickerField extends StatelessWidget {
                       fontSize: 16,
                       color: enabled 
                         ? theme.colorScheme.onSurface 
-                        : theme.colorScheme.onSurface.withOpacity(0.5),
+                        : theme.colorScheme.onSurface.withValues(alpha: 0.5),
                     ),
                   ),
                 ),
@@ -106,8 +105,8 @@ class DatePickerField extends StatelessWidget {
                   Icons.calendar_today,
                   size: 20,
                   color: enabled 
-                    ? theme.colorScheme.onSurface.withOpacity(0.6)
-                    : theme.colorScheme.onSurface.withOpacity(0.3),
+                    ? theme.colorScheme.onSurface.withValues(alpha: 0.6)
+                    : theme.colorScheme.onSurface.withValues(alpha: 0.3),
                 ),
               ],
             ),
@@ -214,7 +213,6 @@ class _DateRangeItem extends StatelessWidget {
                   surface: Colors.white,
                   onSurface: Colors.black,
                 ),
-                dialogBackgroundColor: Colors.white,
               ),
               child: child!,
             );
@@ -239,7 +237,7 @@ class _DateRangeItem extends StatelessWidget {
               label,
               style: TextStyle(
                 fontSize: 12,
-                color: theme.colorScheme.onSurface.withOpacity(0.6),
+                color: theme.colorScheme.onSurface.withValues(alpha: 0.6),
               ),
             ),
             const SizedBox(height: 4),
@@ -252,7 +250,7 @@ class _DateRangeItem extends StatelessWidget {
                 fontWeight: FontWeight.w500,
                 color: date != null
                     ? theme.colorScheme.onSurface
-                    : theme.colorScheme.onSurface.withOpacity(0.4),
+                    : theme.colorScheme.onSurface.withValues(alpha: 0.4),
               ),
             ),
           ],

lib/widgets/common/snackbar/app_snackbar.dart

@@ -0,0 +1,272 @@
+import 'package:flutter/material.dart';
+import '../../../theme/app_colors.dart';
+
+/// 앱 전체에서 사용되는 통합 스낵바
+/// 성공, 에러, 정보 등 다양한 타입의 메시지를 표시합니다.
+class AppSnackBar {
+  /// 성공 메시지를 표시합니다.
+  static void showSuccess({
+    required BuildContext context,
+    required String message,
+    IconData icon = Icons.check_circle_rounded,
+    Duration duration = const Duration(seconds: 3),
+    bool showAtTop = true,
+  }) {
+    _show(
+      context: context,
+      message: message,
+      icon: icon,
+      backgroundColor: AppColors.successColor,
+      iconColor: AppColors.pureWhite,
+      textColor: AppColors.pureWhite,
+      duration: duration,
+      showAtTop: showAtTop,
+    );
+  }
+
+  /// 에러 메시지를 표시합니다.
+  static void showError({
+    required BuildContext context,
+    required String message,
+    IconData icon = Icons.error_rounded,
+    Duration duration = const Duration(seconds: 4),
+    bool showAtTop = true,
+  }) {
+    _show(
+      context: context,
+      message: message,
+      icon: icon,
+      backgroundColor: AppColors.dangerColor,
+      iconColor: AppColors.pureWhite,
+      textColor: AppColors.pureWhite,
+      duration: duration,
+      showAtTop: showAtTop,
+    );
+  }
+
+  /// 정보 메시지를 표시합니다.
+  static void showInfo({
+    required BuildContext context,
+    required String message,
+    IconData icon = Icons.info_rounded,
+    Duration duration = const Duration(seconds: 3),
+    bool showAtTop = true,
+  }) {
+    _show(
+      context: context,
+      message: message,
+      icon: icon,
+      backgroundColor: AppColors.primaryColor,
+      iconColor: AppColors.pureWhite,
+      textColor: AppColors.pureWhite,
+      duration: duration,
+      showAtTop: showAtTop,
+    );
+  }
+
+  /// 경고 메시지를 표시합니다.
+  static void showWarning({
+    required BuildContext context,
+    required String message,
+    IconData icon = Icons.warning_amber_rounded,
+    Duration duration = const Duration(seconds: 3),
+    bool showAtTop = true,
+  }) {
+    _show(
+      context: context,
+      message: message,
+      icon: icon,
+      backgroundColor: AppColors.warningColor,
+      iconColor: AppColors.pureWhite,
+      textColor: AppColors.pureWhite,
+      duration: duration,
+      showAtTop: showAtTop,
+    );
+  }
+
+  /// 커스텀 스낵바를 표시합니다.
+  static void showCustom({
+    required BuildContext context,
+    required String message,
+    required IconData icon,
+    required Color backgroundColor,
+    Color iconColor = AppColors.pureWhite,
+    Color textColor = AppColors.pureWhite,
+    Duration duration = const Duration(seconds: 3),
+    bool showAtTop = true,
+    SnackBarAction? action,
+  }) {
+    _show(
+      context: context,
+      message: message,
+      icon: icon,
+      backgroundColor: backgroundColor,
+      iconColor: iconColor,
+      textColor: textColor,
+      duration: duration,
+      showAtTop: showAtTop,
+      action: action,
+    );
+  }
+
+  /// 내부적으로 스낵바를 표시하는 메서드
+  static void _show({
+    required BuildContext context,
+    required String message,
+    required IconData icon,
+    required Color backgroundColor,
+    required Color iconColor,
+    required Color textColor,
+    required Duration duration,
+    required bool showAtTop,
+    SnackBarAction? action,
+  }) {
+    // 기존 스낵바 제거
+    ScaffoldMessenger.of(context).hideCurrentSnackBar();
+
+    // 새 스낵바 표시
+    ScaffoldMessenger.of(context).showSnackBar(
+      SnackBar(
+        content: Row(
+          children: [
+            // 아이콘
+            Container(
+              padding: const EdgeInsets.all(8),
+              decoration: BoxDecoration(
+                color: iconColor.withValues(alpha: 0.2),
+                shape: BoxShape.circle,
+              ),
+              child: Icon(
+                icon,
+                color: iconColor,
+                size: 20,
+              ),
+            ),
+            const SizedBox(width: 12),
+            // 메시지
+            Expanded(
+              child: Text(
+                message,
+                style: TextStyle(
+                  fontSize: 16,
+                  fontWeight: FontWeight.w500,
+                  color: textColor,
+                  height: 1.3,
+                ),
+              ),
+            ),
+          ],
+        ),
+        backgroundColor: backgroundColor,
+        behavior: SnackBarBehavior.floating,
+        margin: showAtTop
+            ? EdgeInsets.only(
+                top: MediaQuery.of(context).padding.top + 16,
+                left: 16,
+                right: 16,
+                bottom: MediaQuery.of(context).size.height - 120,
+              )
+            : const EdgeInsets.all(16),
+        padding: const EdgeInsets.symmetric(
+          horizontal: 16,
+          vertical: 14,
+        ),
+        shape: RoundedRectangleBorder(
+          borderRadius: BorderRadius.circular(12),
+        ),
+        elevation: 4,
+        duration: duration,
+        dismissDirection: DismissDirection.horizontal,
+        action: action,
+      ),
+    );
+  }
+
+  /// 로딩 스낵바를 표시합니다. (자동으로 사라지지 않음)
+  static ScaffoldFeatureController<SnackBar, SnackBarClosedReason> showLoading({
+    required BuildContext context,
+    required String message,
+    bool showAtTop = true,
+  }) {
+    // 기존 스낵바 제거
+    ScaffoldMessenger.of(context).hideCurrentSnackBar();
+
+    return ScaffoldMessenger.of(context).showSnackBar(
+      SnackBar(
+        content: Row(
+          children: [
+            // 로딩 인디케이터
+            Container(
+              width: 24,
+              height: 24,
+              margin: const EdgeInsets.only(right: 12),
+              child: CircularProgressIndicator(
+                strokeWidth: 2.5,
+                color: AppColors.pureWhite,
+              ),
+            ),
+            // 메시지
+            Expanded(
+              child: Text(
+                message,
+                style: const TextStyle(
+                  fontSize: 16,
+                  fontWeight: FontWeight.w500,
+                  color: AppColors.pureWhite,
+                ),
+              ),
+            ),
+          ],
+        ),
+        backgroundColor: AppColors.primaryColor,
+        behavior: SnackBarBehavior.floating,
+        margin: showAtTop
+            ? EdgeInsets.only(
+                top: MediaQuery.of(context).padding.top + 16,
+                left: 16,
+                right: 16,
+                bottom: MediaQuery.of(context).size.height - 120,
+              )
+            : const EdgeInsets.all(16),
+        padding: const EdgeInsets.symmetric(
+          horizontal: 16,
+          vertical: 14,
+        ),
+        shape: RoundedRectangleBorder(
+          borderRadius: BorderRadius.circular(12),
+        ),
+        elevation: 4,
+        duration: const Duration(days: 365), // 자동으로 사라지지 않음
+        dismissDirection: DismissDirection.none, // 스와이프로 닫을 수 없음
+      ),
+    );
+  }
+
+  /// 액션 버튼이 있는 스낵바를 표시합니다.
+  static void showWithAction({
+    required BuildContext context,
+    required String message,
+    required String actionLabel,
+    required VoidCallback onActionPressed,
+    IconData icon = Icons.info_rounded,
+    Color backgroundColor = AppColors.primaryColor,
+    Duration duration = const Duration(seconds: 4),
+    bool showAtTop = true,
+  }) {
+    _show(
+      context: context,
+      message: message,
+      icon: icon,
+      backgroundColor: backgroundColor,
+      iconColor: AppColors.pureWhite,
+      textColor: AppColors.pureWhite,
+      duration: duration,
+      showAtTop: showAtTop,
+      action: SnackBarAction(
+        label: actionLabel,
+        textColor: AppColors.pureWhite,
+        onPressed: onActionPressed,
+      ),
+    );
+  }
+}

lib/widgets/detail/detail_form_section.dart

@@ -240,7 +240,7 @@ class _CurrencyOption extends StatelessWidget {
           decoration: BoxDecoration(
             color: isSelected 
                 ? Theme.of(context).primaryColor 
-                : Colors.grey.withOpacity(0.1),
+                : Colors.grey.withValues(alpha: 0.1),
             borderRadius: BorderRadius.circular(12),
           ),
           child: Center(
@@ -291,7 +291,7 @@ class _BillingCycleSelector extends StatelessWidget {
                   vertical: 12,
                 ),
                 decoration: BoxDecoration(
-                  color: isSelected ? baseColor : Colors.grey.withOpacity(0.1),
+                  color: isSelected ? baseColor : Colors.grey.withValues(alpha: 0.1),
                   borderRadius: BorderRadius.circular(12),
                 ),
                 child: Text(
@@ -341,14 +341,14 @@ class _CategorySelector extends StatelessWidget {
               vertical: 10,
             ),
             decoration: BoxDecoration(
-              color: isSelected ? baseColor : Colors.grey.withOpacity(0.1),
+              color: isSelected ? baseColor : Colors.grey.withValues(alpha: 0.1),
               borderRadius: BorderRadius.circular(12),
             ),
             child: Row(
               mainAxisSize: MainAxisSize.min,
               children: [
                 Text(
-                  category.emoji,
+                  category.icon,
                   style: const TextStyle(fontSize: 16),
                 ),
                 const SizedBox(width: 6),

lib/widgets/dialogs/delete_confirmation_dialog.dart

@@ -0,0 +1,182 @@
+import 'package:flutter/material.dart';
+import 'dart:ui';
+import '../../theme/app_colors.dart';
+import '../common/buttons/primary_button.dart';
+import '../common/buttons/secondary_button.dart';
+
+/// 삭제 확인 다이얼로그
+/// 글래스모피즘 스타일의 삭제 확인 다이얼로그입니다.
+class DeleteConfirmationDialog extends StatelessWidget {
+  final String serviceName;
+
+  const DeleteConfirmationDialog({
+    super.key,
+    required this.serviceName,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Dialog(
+      backgroundColor: Colors.transparent,
+      elevation: 0,
+      child: Container(
+        constraints: const BoxConstraints(maxWidth: 400),
+        child: Stack(
+          children: [
+            // 글래스모피즘 배경
+            ClipRRect(
+              borderRadius: BorderRadius.circular(24),
+              child: BackdropFilter(
+                filter: ImageFilter.blur(sigmaX: 10, sigmaY: 10),
+                child: Container(
+                  decoration: BoxDecoration(
+                    color: AppColors.glassCard.withValues(alpha: 0.8),
+                    borderRadius: BorderRadius.circular(24),
+                    border: Border.all(
+                      color: AppColors.glassBorder,
+                      width: 1,
+                    ),
+                  ),
+                  padding: const EdgeInsets.all(32),
+                  child: Column(
+                    mainAxisSize: MainAxisSize.min,
+                    children: [
+                      // 아이콘
+                      Container(
+                        width: 80,
+                        height: 80,
+                        decoration: BoxDecoration(
+                          color: Colors.red.withValues(alpha: 0.1),
+                          shape: BoxShape.circle,
+                        ),
+                        child: const Icon(
+                          Icons.delete_forever_rounded,
+                          color: Colors.red,
+                          size: 40,
+                        ),
+                      ),
+                      const SizedBox(height: 24),
+                      
+                      // 타이틀
+                      const Text(
+                        '구독 삭제',
+                        style: TextStyle(
+                          fontSize: 24,
+                          fontWeight: FontWeight.w700,
+                          color: AppColors.textPrimary,
+                        ),
+                      ),
+                      const SizedBox(height: 12),
+                      
+                      // 설명
+                      RichText(
+                        textAlign: TextAlign.center,
+                        text: TextSpan(
+                          style: const TextStyle(
+                            fontSize: 16,
+                            color: AppColors.textSecondary,
+                            height: 1.5,
+                          ),
+                          children: [
+                            const TextSpan(text: '정말로 '),
+                            TextSpan(
+                              text: serviceName,
+                              style: const TextStyle(
+                                fontWeight: FontWeight.w600,
+                                color: AppColors.textPrimary,
+                              ),
+                            ),
+                            const TextSpan(text: ' 구독을\n삭제하시겠습니까?'),
+                          ],
+                        ),
+                      ),
+                      const SizedBox(height: 8),
+                      
+                      // 경고 메시지
+                      Container(
+                        padding: const EdgeInsets.symmetric(
+                          horizontal: 16,
+                          vertical: 12,
+                        ),
+                        decoration: BoxDecoration(
+                          color: Colors.red.withValues(alpha: 0.05),
+                          borderRadius: BorderRadius.circular(12),
+                          border: Border.all(
+                            color: Colors.red.withValues(alpha: 0.2),
+                            width: 1,
+                          ),
+                        ),
+                        child: Row(
+                          mainAxisSize: MainAxisSize.min,
+                          children: [
+                            Icon(
+                              Icons.warning_amber_rounded,
+                              color: Colors.red.withValues(alpha: 0.8),
+                              size: 20,
+                            ),
+                            const SizedBox(width: 8),
+                            const Text(
+                              '이 작업은 되돌릴 수 없습니다',
+                              style: TextStyle(
+                                fontSize: 14,
+                                color: Colors.red,
+                                fontWeight: FontWeight.w500,
+                              ),
+                            ),
+                          ],
+                        ),
+                      ),
+                      const SizedBox(height: 32),
+                      
+                      // 버튼들
+                      Row(
+                        children: [
+                          Expanded(
+                            child: SecondaryButton(
+                              text: '취소',
+                              onPressed: () {
+                                Navigator.of(context).pop(false);
+                              },
+                            ),
+                          ),
+                          const SizedBox(width: 12),
+                          Expanded(
+                            child: PrimaryButton(
+                              text: '삭제',
+                              icon: Icons.delete_rounded,
+                              onPressed: () {
+                                Navigator.of(context).pop(true);
+                              },
+                              backgroundColor: Colors.red,
+                            ),
+                          ),
+                        ],
+                      ),
+                    ],
+                  ),
+                ),
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  /// 삭제 확인 다이얼로그를 표시합니다.
+  static Future<bool> show({
+    required BuildContext context,
+    required String serviceName,
+  }) async {
+    final result = await showDialog<bool>(
+      context: context,
+      barrierDismissible: false,
+      barrierColor: Colors.black.withValues(alpha: 0.5),
+      builder: (context) => DeleteConfirmationDialog(
+        serviceName: serviceName,
+      ),
+    );
+    
+    return result ?? false;
+  }
+}

lib/widgets/empty_state_widget.dart

@@ -3,6 +3,7 @@ import 'package:flutter/services.dart';
 import 'dart:math' as math;
 import 'glassmorphism_card.dart';
 import 'themed_text.dart';
+import '../theme/app_colors.dart';
 
 /// 구독이 없을 때 표시되는 빈 화면 위젯
 ///
@@ -49,14 +50,14 @@ class EmptyStateWidget extends StatelessWidget {
                         padding: const EdgeInsets.all(24),
                         decoration: BoxDecoration(
                           gradient: const LinearGradient(
-                            colors: [Color(0xFF3B82F6), Color(0xFF2563EB)],
+                            colors: AppColors.blueGradient,
                             begin: Alignment.topLeft,
                             end: Alignment.bottomRight,
                           ),
                           borderRadius: BorderRadius.circular(16),
                           boxShadow: [
                             BoxShadow(
-                              color: const Color(0xFF3B82F6).withValues(alpha: 0.3),
+                              color: AppColors.primaryColor.withValues(alpha: 0.3),
                               spreadRadius: 0,
                               blurRadius: 16,
                               offset: const Offset(0, 8),
@@ -66,7 +67,7 @@ class EmptyStateWidget extends StatelessWidget {
                         child: const Icon(
                           Icons.subscriptions_outlined,
                           size: 48,
-                          color: Colors.white,
+                          color: AppColors.pureWhite,
                         ),
                       ),
                     );
@@ -100,7 +101,7 @@ class EmptyStateWidget extends StatelessWidget {
                         borderRadius: BorderRadius.circular(16),
                       ),
                       elevation: 4,
-                      backgroundColor: const Color(0xFF3B82F6),
+                      backgroundColor: AppColors.primaryColor,
                     ),
                     onPressed: () {
                       HapticFeedback.mediumImpact();
@@ -112,7 +113,7 @@ class EmptyStateWidget extends StatelessWidget {
                         fontSize: 16,
                         fontWeight: FontWeight.w600,
                         letterSpacing: 0.5,
-                        color: Colors.white,
+                        color: AppColors.pureWhite,
                       ),
                     ),
                   ),

lib/widgets/expandable_fab.dart

@@ -1,5 +1,4 @@
 import 'package:flutter/material.dart';
-import 'package:flutter/services.dart';
 import 'dart:math' as math;
 import '../theme/app_colors.dart';
 import '../utils/haptic_feedback_helper.dart';
@@ -82,7 +81,7 @@ class _ExpandableFabState extends State<ExpandableFab>
               animation: _expandAnimation,
               builder: (context, child) {
                 return Container(
-                  color: Colors.black.withValues(alpha: 0.3 * _expandAnimation.value),
+                  color: AppColors.shadowBlack.withValues(alpha: 3.75 * _expandAnimation.value),
                 );
               },
             ),
@@ -118,7 +117,7 @@ class _ExpandableFabState extends State<ExpandableFab>
                     child: Icon(
                       action.icon,
                       size: 20,
-                      color: Colors.white,
+                      color: AppColors.pureWhite,
                     ),
                   ),
                 ),
@@ -176,6 +175,7 @@ class _ExpandableFabState extends State<ExpandableFab>
                         style: const TextStyle(
                           fontSize: 12,
                           fontWeight: FontWeight.w600,
+                          color: AppColors.darkNavy,
                         ),
                       ),
                     ),

lib/widgets/floating_navigation_bar.dart

@@ -72,42 +72,58 @@ class _FloatingNavigationBarState extends State<FloatingNavigationBar>
             offset: Offset(0, 100 * (1 - _animation.value)),
             child: Opacity(
               opacity: _animation.value,
-              child: GlassmorphismCard(
-                padding: const EdgeInsets.symmetric(vertical: 8, horizontal: 8),
-                borderRadius: 24,
-                blur: 10.0,
-                child: Row(
-                  mainAxisAlignment: MainAxisAlignment.spaceEvenly,
-                  children: [
-                    _NavigationItem(
-                      icon: Icons.home_rounded,
-                      label: '홈',
-                      isSelected: widget.selectedIndex == 0,
-                      onTap: () => _onItemTapped(0),
+              child: Stack(
+                children: [
+                  // 차단 레이어 - 크기 명시
+                  Positioned.fill(
+                    child: Container(
+                      decoration: BoxDecoration(
+                        color: Colors.white.withValues(alpha: 0.9),
+                        borderRadius: BorderRadius.circular(24),
+                      ),
                     ),
-                    _NavigationItem(
-                      icon: Icons.analytics_rounded,
-                      label: '분석',
-                      isSelected: widget.selectedIndex == 1,
-                      onTap: () => _onItemTapped(1),
+                  ),
+                  // 글래스모피즘 레이어
+                  GlassmorphismCard(
+                    padding:
+                        const EdgeInsets.symmetric(vertical: 8, horizontal: 8),
+                    borderRadius: 24,
+                    blur: 10.0,
+                    backgroundColor: Colors.transparent,
+                    child: Row(
+                      mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+                      children: [
+                        _NavigationItem(
+                          icon: Icons.home_rounded,
+                          label: '홈',
+                          isSelected: widget.selectedIndex == 0,
+                          onTap: () => _onItemTapped(0),
+                        ),
+                        _NavigationItem(
+                          icon: Icons.analytics_rounded,
+                          label: '분석',
+                          isSelected: widget.selectedIndex == 1,
+                          onTap: () => _onItemTapped(1),
+                        ),
+                        _AddButton(
+                          onTap: () => _onItemTapped(2),
+                        ),
+                        _NavigationItem(
+                          icon: Icons.qr_code_scanner_rounded,
+                          label: 'SMS',
+                          isSelected: widget.selectedIndex == 3,
+                          onTap: () => _onItemTapped(3),
+                        ),
+                        _NavigationItem(
+                          icon: Icons.settings_rounded,
+                          label: '설정',
+                          isSelected: widget.selectedIndex == 4,
+                          onTap: () => _onItemTapped(4),
+                        ),
+                      ],
                     ),
-                    _AddButton(
-                      onTap: () => _onItemTapped(2),
-                    ),
-                    _NavigationItem(
-                      icon: Icons.qr_code_scanner_rounded,
-                      label: 'SMS',
-                      isSelected: widget.selectedIndex == 3,
-                      onTap: () => _onItemTapped(3),
-                    ),
-                    _NavigationItem(
-                      icon: Icons.settings_rounded,
-                      label: '설정',
-                      isSelected: widget.selectedIndex == 4,
-                      onTap: () => _onItemTapped(4),
-                    ),
-                  ],
-                ),
+                  ),
+                ],
               ),
             ),
           ),
@@ -137,8 +153,6 @@ class _NavigationItem extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final isDarkMode = Theme.of(context).brightness == Brightness.dark;
-
     return InkWell(
       onTap: onTap,
       borderRadius: BorderRadius.circular(12),
@@ -147,7 +161,7 @@ class _NavigationItem extends StatelessWidget {
         padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
         decoration: BoxDecoration(
           color: isSelected
-              ? const Color(0xFF14B8A6).withValues(alpha: 0.1)
+              ? AppColors.primaryColor.withValues(alpha: 0.1)
               : Colors.transparent,
           borderRadius: BorderRadius.circular(12),
         ),
@@ -158,9 +172,7 @@ class _NavigationItem extends StatelessWidget {
               duration: const Duration(milliseconds: 200),
               child: Icon(
                 icon,
-                color: isSelected
-                    ? const Color(0xFF14B8A6)
-                    : (isDarkMode ? Colors.white70 : AppColors.textSecondary),
+                color: isSelected ? AppColors.primaryColor : AppColors.navyGray,
                 size: isSelected ? 26 : 24,
               ),
             ),
@@ -170,9 +182,7 @@ class _NavigationItem extends StatelessWidget {
               style: TextStyle(
                 fontSize: 11,
                 fontWeight: isSelected ? FontWeight.w600 : FontWeight.w500,
-                color: isSelected
-                    ? const Color(0xFF14B8A6)
-                    : (isDarkMode ? Colors.white70 : AppColors.textSecondary),
+                color: isSelected ? AppColors.primaryColor : AppColors.navyGray,
               ),
               child: Text(label),
             ),
@@ -243,17 +253,17 @@ class _AddButtonState extends State<_AddButton>
                   colors: AppColors.blueGradient,
                 ),
                 borderRadius: BorderRadius.circular(16),
-                boxShadow: [
+                boxShadow: const [
                   BoxShadow(
-                    color: AppColors.primaryColor.withValues(alpha: 0.3),
+                    color: AppColors.shadowBlack,
                     blurRadius: 12,
-                    offset: const Offset(0, 4),
+                    offset: Offset(0, 4),
                   ),
                 ],
               ),
               child: const Icon(
                 Icons.add_rounded,
-                color: Colors.white,
+                color: AppColors.pureWhite,
                 size: 28,
               ),
             ),

lib/widgets/glassmorphic_app_bar.dart

@@ -64,8 +64,8 @@ class GlassmorphicAppBar extends StatelessWidget implements PreferredSizeWidget
             border: Border(
               bottom: BorderSide(
                 color: isDarkMode 
-                    ? AppColors.glassBorderDark.withValues(alpha: 0.3)
-                    : AppColors.glassBorder.withValues(alpha: 0.3),
+                    ? AppColors.primaryColor.withValues(alpha: 0.3)
+                    : AppColors.glassBorder.withValues(alpha: 0.5),
                 width: 0.5,
               ),
             ),
@@ -268,8 +268,8 @@ class GlassmorphicSliverAppBar extends StatelessWidget {
                         border: Border(
                           bottom: BorderSide(
                             color: isDarkMode 
-                                ? AppColors.glassBorderDark.withValues(alpha: 0.3)
-                                : AppColors.glassBorder.withValues(alpha: 0.3),
+                                ? AppColors.primaryColor.withValues(alpha: 0.3)
+                                : AppColors.glassBorder.withValues(alpha: 0.5),
                             width: 0.5,
                           ),
                         ),

lib/widgets/glassmorphic_scaffold.dart

@@ -105,17 +105,8 @@ class _GlassmorphicScaffoldState extends State<GlassmorphicScaffold>
       return widget.backgroundGradient!;
     }
     
-    // 시간대별 기본 그라디언트
-    final hour = DateTime.now().hour;
-    if (hour >= 6 && hour < 10) {
-      return AppColors.morningGradient;
-    } else if (hour >= 10 && hour < 17) {
-      return AppColors.dayGradient;
-    } else if (hour >= 17 && hour < 20) {
-      return AppColors.eveningGradient;
-    } else {
-      return AppColors.nightGradient;
-    }
+    // 디폴트 그라디언트
+    return AppColors.mainGradient;
   }
 
   @override
@@ -166,7 +157,11 @@ class _GlassmorphicScaffoldState extends State<GlassmorphicScaffold>
           gradient: LinearGradient(
             begin: Alignment.topLeft,
             end: Alignment.bottomRight,
-            colors: gradientColors.map((color) => color.withValues(alpha: 0.1)).toList(),
+            colors: [
+              AppColors.backgroundColor,
+              ...gradientColors.map((color) => color.withValues(alpha: 0.05)).toList(),
+              AppColors.backgroundColor,
+            ],
           ),
         ),
       ),
@@ -201,7 +196,7 @@ class _GlassmorphicScaffoldState extends State<GlassmorphicScaffold>
           return CustomPaint(
             painter: WavePainter(
               animation: _waveController,
-              waveColor: AppColors.primaryColor.withValues(alpha: 0.1),
+              waveColor: AppColors.secondaryColor.withValues(alpha: 0.1),
             ),
           );
         },
@@ -244,7 +239,7 @@ class ParticlePainter extends CustomPainter {
       final progress = animation.value;
       final y = (particle.y + progress * particle.speed) % 1.0;
       
-      paint.color = Colors.white.withValues(alpha: particle.opacity);
+      paint.color = AppColors.pureWhite.withValues(alpha: particle.opacity);
       canvas.drawCircle(
         Offset(particle.x * size.width, y * size.height),
         particle.size,

lib/widgets/glassmorphism_card.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'dart:ui';
 import '../theme/app_colors.dart';
+import 'themed_text.dart';
 
 class GlassmorphismCard extends StatelessWidget {
   final Widget child;
@@ -54,9 +55,7 @@ class GlassmorphismCard extends StatelessWidget {
               child: Container(
                 padding: padding,
                 decoration: BoxDecoration(
-                  color: backgroundColor ?? (isDarkMode 
-                    ? AppColors.glassCardDark 
-                    : AppColors.glassCard),
+                  color: backgroundColor ?? AppColors.glassCard,
                   gradient: gradient ?? LinearGradient(
                     begin: Alignment.topLeft,
                     end: Alignment.bottomRight,
@@ -67,20 +66,22 @@ class GlassmorphismCard extends StatelessWidget {
                   borderRadius: BorderRadius.circular(borderRadius),
                   border: border ?? Border.all(
                     color: isDarkMode 
-                      ? AppColors.glassBorderDark 
+                      ? AppColors.primaryColor.withValues(alpha: 0.3) 
                       : AppColors.glassBorder,
-                    width: 1.5,
+                    width: 1,
                   ),
                   boxShadow: boxShadow ?? [
                     BoxShadow(
-                      color: Colors.black.withValues(alpha: 0.1),
+                      color: AppColors.shadowBlack,  // color.md 가이드: rgba(0,0,0,0.08)
                       blurRadius: 20,
                       spreadRadius: -5,
                       offset: const Offset(0, 10),
                     ),
                   ],
                 ),
-                child: child,
+                child: GlassmorphicIndicator(
+                  child: child,
+                ),
               ),
             ),
           ),

lib/widgets/main_summary_card.dart

@@ -39,17 +39,15 @@ class MainScreenSummaryCard extends StatelessWidget {
         child: GlassmorphismCard(
             borderRadius: 24,
             blur: 15,
-            backgroundColor: AppColors.primaryColor.withValues(alpha: 0.2),
+            backgroundColor: AppColors.glassCard,
             gradient: LinearGradient(
               begin: Alignment.topLeft,
               end: Alignment.bottomRight,
-              colors: [
-                AppColors.primaryColor.withValues(alpha: 0.3),
-                AppColors.primaryColor.withBlue(
-                    (AppColors.primaryColor.blue * 1.3)
-                        .clamp(0, 255)
-                        .toInt()).withValues(alpha: 0.2),
-              ],
+              colors: AppColors.mainGradient.map((color) => color.withValues(alpha: 0.2)).toList(),
+            ),
+            border: Border.all(
+              color: AppColors.glassBorder,
+              width: 1,
             ),
             child: Container(
               width: double.infinity,
@@ -81,7 +79,7 @@ class MainScreenSummaryCard extends StatelessWidget {
                           Text(
                             '이번 달 총 구독 비용',
                             style: TextStyle(
-                              color: Colors.white.withValues(alpha: 0.9),
+                              color: AppColors.darkNavy,  // color.md 가이드: 밝은 배경 위 어두운 텍스트
                               fontSize: 15,
                               fontWeight: FontWeight.w500,
                             ),
@@ -98,7 +96,7 @@ class MainScreenSummaryCard extends StatelessWidget {
                                   decimalDigits: 0,
                                 ).format(monthlyCost),
                                 style: const TextStyle(
-                                  color: Colors.white,
+                                  color: AppColors.darkNavy,  // color.md 가이드: 밝은 배경 위 어두운 텍스트
                                   fontSize: 32,
                                   fontWeight: FontWeight.bold,
                                   letterSpacing: -1,
@@ -108,7 +106,7 @@ class MainScreenSummaryCard extends StatelessWidget {
                               Text(
                                 '원',
                                 style: TextStyle(
-                                  color: Colors.white.withValues(alpha: 0.9),
+                                  color: AppColors.darkNavy,  // color.md 가이드: 밝은 배경 위 어두운 텍스트
                                   fontSize: 16,
                                   fontWeight: FontWeight.w500,
                                 ),
@@ -149,7 +147,7 @@ class MainScreenSummaryCard extends StatelessWidget {
                                 ),
                                 borderRadius: BorderRadius.circular(12),
                                 border: Border.all(
-                                  color: Colors.white.withValues(alpha: 0.3),
+                                  color: AppColors.primaryColor.withValues(alpha: 0.3),
                                   width: 1,
                                 ),
                               ),
@@ -165,7 +163,7 @@ class MainScreenSummaryCard extends StatelessWidget {
                                     child: const Icon(
                                       Icons.local_offer_rounded,
                                       size: 14,
-                                      color: Colors.white,
+                                      color: AppColors.primaryColor,  // color.md 가이드: 밝은 배경 위 딥 블루 아이콘
                                     ),
                                   ),
                                   const SizedBox(width: 10),
@@ -175,7 +173,7 @@ class MainScreenSummaryCard extends StatelessWidget {
                                       Text(
                                         '이벤트 할인 중',
                                         style: TextStyle(
-                                          color: Colors.white.withValues(alpha: 0.9),
+                                          color: AppColors.darkNavy,  // color.md 가이드: 밝은 배경 위 어두운 텍스트
                                           fontSize: 11,
                                           fontWeight: FontWeight.w500,
                                         ),
@@ -190,7 +188,7 @@ class MainScreenSummaryCard extends StatelessWidget {
                                               decimalDigits: 0,
                                             ).format(eventSavings),
                                             style: const TextStyle(
-                                              color: Colors.white,
+                                              color: AppColors.primaryColor,  // color.md 가이드: 밝은 배경 위 딥 블루 강조
                                               fontSize: 14,
                                               fontWeight: FontWeight.bold,
                                             ),
@@ -198,7 +196,7 @@ class MainScreenSummaryCard extends StatelessWidget {
                                           Text(
                                             ' 절약 ($activeEvents개)',
                                             style: TextStyle(
-                                              color: Colors.white.withValues(alpha: 0.85),
+                                              color: AppColors.navyGray,  // color.md 가이드: 밝은 배경 위 서브 텍스트
                                               fontSize: 12,
                                               fontWeight: FontWeight.w500,
                                             ),
@@ -229,7 +227,7 @@ class MainScreenSummaryCard extends StatelessWidget {
       child: Container(
         padding: const EdgeInsets.symmetric(vertical: 12, horizontal: 16),
         decoration: BoxDecoration(
-          color: Colors.white.withValues(alpha: 0.15),
+          color: AppColors.glassBackground,
           borderRadius: BorderRadius.circular(12),
         ),
         child: Column(
@@ -238,7 +236,7 @@ class MainScreenSummaryCard extends StatelessWidget {
             Text(
               title,
               style: TextStyle(
-                color: Colors.white.withValues(alpha: 0.85),
+                color: AppColors.navyGray,  // color.md 가이드: 밝은 배경 위 서브 텍스트
                 fontSize: 12,
                 fontWeight: FontWeight.w500,
               ),
@@ -247,7 +245,7 @@ class MainScreenSummaryCard extends StatelessWidget {
             Text(
               value,
               style: const TextStyle(
-                color: Colors.white,
+                color: AppColors.darkNavy,  // color.md 가이드: 밝은 배경 위 어두운 텍스트
                 fontSize: 14,
                 fontWeight: FontWeight.bold,
               ),

lib/widgets/spring_animation_widget.dart

@@ -1,5 +1,4 @@
 import 'package:flutter/material.dart';
-import 'package:flutter/physics.dart';
 
 /// 물리 기반 스프링 애니메이션을 적용하는 위젯
 class SpringAnimationWidget extends StatefulWidget {
@@ -212,7 +211,7 @@ class _GravityAnimationState extends State<GravityAnimation>
   late AnimationController _controller;
   double _position = 0;
   double _velocity = 0;
-  double _floor = 300;
+  final double _floor = 300;
 
   @override
   void initState() {

lib/widgets/subscription_card.dart

@@ -190,14 +190,10 @@ class _SubscriptionCardState extends State<SubscriptionCard>
     return false;
   }
 
-  Color _getCardColor() {
-    return Colors.white;
-  }
 
   @override
   Widget build(BuildContext context) {
     final isNearBilling = _isNearBilling();
-    final Color cardColor = _getCardColor();
 
     return Hero(
       tag: 'subscription_${widget.subscription.id}',
@@ -225,27 +221,7 @@ class _SubscriptionCardState extends State<SubscriptionCard>
                     padding: EdgeInsets.zero,
                     borderRadius: 16,
                     blur: _isHovering ? 15 : 10,
-                    child: Container(
-                    clipBehavior: Clip.antiAlias,
-                    decoration: BoxDecoration(
-                      color: cardColor,
-                      borderRadius: BorderRadius.circular(16),
-                      border: Border.all(
-                        color: _isHovering
-                            ? AppColors.primaryColor.withValues(alpha: 0.3)
-                            : AppColors.borderColor,
-                        width: _isHovering ? 1.5 : 0.5,
-                      ),
-                      boxShadow: [
-                        BoxShadow(
-                          color: AppColors.primaryColor.withValues(alpha: 
-                              0.03 + (0.05 * _hoverController.value)),
-                          blurRadius: 8 + (8 * _hoverController.value),
-                          spreadRadius: 0,
-                          offset: Offset(0, 4 + (2 * _hoverController.value)),
-                        ),
-                      ],
-                    ),
+                    width: double.infinity,  // 전체 너비를 차지하도록 설정
                     child: Column(
                       children: [
                         // 그라데이션 상단 바 효과
@@ -300,7 +276,7 @@ class _SubscriptionCardState extends State<SubscriptionCard>
                                             style: const TextStyle(
                                               fontWeight: FontWeight.w600,
                                               fontSize: 18,
-                                              color: Color(0xFF1E293B),
+                                              color: AppColors.darkNavy,  // color.md 가이드: 메인 텍스트
                                             ),
                                             maxLines: 1,
                                             overflow: TextOverflow.ellipsis,
@@ -334,7 +310,7 @@ class _SubscriptionCardState extends State<SubscriptionCard>
                                                     Icon(
                                                       Icons.local_offer_rounded,
                                                       size: 11,
-                                                      color: Colors.white,
+                                                      color: AppColors.pureWhite,
                                                     ),
                                                     SizedBox(width: 3),
                                                     Text(
@@ -342,7 +318,7 @@ class _SubscriptionCardState extends State<SubscriptionCard>
                                                       style: TextStyle(
                                                         fontSize: 11,
                                                         fontWeight: FontWeight.w600,
-                                                        color: Colors.white,
+                                                        color: AppColors.pureWhite,
                                                       ),
                                                     ),
                                                   ],
@@ -371,7 +347,7 @@ class _SubscriptionCardState extends State<SubscriptionCard>
                                                 style: const TextStyle(
                                                   fontSize: 11,
                                                   fontWeight: FontWeight.w600,
-                                                  color: AppColors.textSecondary,
+                                                  color: AppColors.navyGray,  // color.md 가이드: 서브 텍스트
                                                 ),
                                               ),
                                             ),
@@ -409,7 +385,7 @@ class _SubscriptionCardState extends State<SubscriptionCard>
                                                 style: const TextStyle(
                                                   fontSize: 14,
                                                   fontWeight: FontWeight.w500,
-                                                  color: AppColors.textSecondary,
+                                                  color: AppColors.navyGray,  // color.md 가이드: 서브 텍스트
                                                   decoration: TextDecoration.lineThrough,
                                                 ),
                                               ),
@@ -539,7 +515,7 @@ class _SubscriptionCardState extends State<SubscriptionCard>
                                               '${widget.subscription.eventEndDate!.difference(DateTime.now()).inDays}일 남음',
                                               style: const TextStyle(
                                                 fontSize: 11,
-                                                color: AppColors.textSecondary,
+                                                color: AppColors.navyGray,  // color.md 가이드: 서브 텍스트
                                               ),
                                             ),
                                           ],
@@ -555,7 +531,6 @@ class _SubscriptionCardState extends State<SubscriptionCard>
                       ],
                     ),
                   ),
-                  ),
                 ),
               ),
             );

lib/widgets/subscription_list_widget.dart

@@ -6,6 +6,8 @@ import '../widgets/staggered_list_animation.dart';
 import '../widgets/app_navigator.dart';
 import 'package:provider/provider.dart';
 import '../providers/subscription_provider.dart';
+import './dialogs/delete_confirmation_dialog.dart';
+import './common/snackbar/app_snackbar.dart';
 
 /// 카테고리별로 구독 목록을 표시하는 위젯
 class SubscriptionListWidget extends StatelessWidget {
@@ -92,14 +94,30 @@ class SubscriptionListWidget extends StatelessWidget {
                                 AppNavigator.toDetail(context, subscriptions[subIndex]);
                               },
                               onDelete: () async {
-                                // 삭제 확인 다이얼로그
-                                final provider = Provider.of<SubscriptionProvider>(
-                                  context, 
-                                  listen: false,
-                                );
-                                await provider.deleteSubscription(
-                                  subscriptions[subIndex].id,
+                                // 삭제 확인 다이얼로그 표시
+                                final shouldDelete = await DeleteConfirmationDialog.show(
+                                  context: context,
+                                  serviceName: subscriptions[subIndex].serviceName,
                                 );
+                                
+                                if (shouldDelete && context.mounted) {
+                                  // 사용자가 확인한 경우에만 삭제 진행
+                                  final provider = Provider.of<SubscriptionProvider>(
+                                    context, 
+                                    listen: false,
+                                  );
+                                  await provider.deleteSubscription(
+                                    subscriptions[subIndex].id,
+                                  );
+                                  
+                                  if (context.mounted) {
+                                    AppSnackBar.showSuccess(
+                                      context: context,
+                                      message: '${subscriptions[subIndex].serviceName} 구독이 삭제되었습니다.',
+                                      icon: Icons.delete_forever_rounded,
+                                    );
+                                  }
+                                }
                               },
                             ),
                           ),

lib/widgets/swipeable_subscription_card.dart

@@ -2,12 +2,11 @@ import 'package:flutter/material.dart';
 import '../models/subscription_model.dart';
 import '../utils/haptic_feedback_helper.dart';
 import 'subscription_card.dart';
-import '../theme/app_colors.dart';
 
 class SwipeableSubscriptionCard extends StatefulWidget {
   final SubscriptionModel subscription;
   final VoidCallback? onEdit;
-  final VoidCallback? onDelete;
+  final Future<void> Function()? onDelete;
   final VoidCallback? onTap;
   
   const SwipeableSubscriptionCard({
@@ -27,12 +26,15 @@ class _SwipeableSubscriptionCardState extends State<SwipeableSubscriptionCard>
   late AnimationController _controller;
   late Animation<double> _animation;
   double _dragStartX = 0;
-  double _dragExtent = 0;
+  double _currentOffset = 0; // 현재 카드의 실제 위치
+  bool _isDragging = false; // 드래그 중인지 여부
   bool _isSwipingLeft = false;
   bool _hapticTriggered = false;
+  double _screenWidth = 0;
+  double _cardWidth = 0; // 카드의 실제 너비 (margin 제외)
   
-  static const double _swipeThreshold = 80.0;
-  static const double _deleteThreshold = 150.0;
+  static const double _actionThresholdPercent = 0.15; // 15%에서 액션 버튼 표시
+  static const double _deleteThresholdPercent = 0.40; // 40%에서 삭제/편집 실행
 
   @override
   void initState() {
@@ -48,81 +50,137 @@ class _SwipeableSubscriptionCardState extends State<SwipeableSubscriptionCard>
       parent: _controller,
       curve: Curves.easeOutExpo,
     ));
+    
+    // 애니메이션 상태 리스너 추가
+    _controller.addStatusListener(_onAnimationStatusChanged);
+    
+    // 애니메이션 리스너 추가
+    _controller.addListener(_onAnimationUpdate);
+  }
+  
+  @override
+  void didChangeDependencies() {
+    super.didChangeDependencies();
+    _screenWidth = MediaQuery.of(context).size.width;
+    _cardWidth = _screenWidth - 32; // 좌우 margin 16px씩 제외
+  }
+  
+  @override
+  void didUpdateWidget(SwipeableSubscriptionCard oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    // 위젯이 업데이트될 때 카드를 원위치로 복귀
+    if (oldWidget.subscription.id != widget.subscription.id) {
+      _controller.stop();
+      setState(() {
+        _currentOffset = 0;
+        _isDragging = false;
+      });
+    }
   }
 
   @override
   void dispose() {
+    _controller.removeListener(_onAnimationUpdate);
+    _controller.removeStatusListener(_onAnimationStatusChanged);
+    _controller.stop();
     _controller.dispose();
     super.dispose();
   }
+  
+  void _onAnimationUpdate() {
+    if (!_isDragging) {
+      setState(() {
+        _currentOffset = _animation.value;
+      });
+    }
+  }
+  
+  void _onAnimationStatusChanged(AnimationStatus status) {
+    if (status == AnimationStatus.completed && !_isDragging) {
+      setState(() {
+        _currentOffset = _animation.value;
+      });
+    }
+  }
 
   void _handleDragStart(DragStartDetails details) {
     _dragStartX = details.localPosition.dx;
     _hapticTriggered = false;
+    _isDragging = true;
+    _controller.stop(); // 진행 중인 애니메이션 중지
   }
 
   void _handleDragUpdate(DragUpdateDetails details) {
     final delta = details.localPosition.dx - _dragStartX;
     setState(() {
-      _dragExtent = delta;
+      _currentOffset = delta;
       _isSwipingLeft = delta < 0;
     });
     
-    // 햅틱 피드백 트리거
-    if (!_hapticTriggered && _dragExtent.abs() > _swipeThreshold) {
+    // 햅틱 피드백 트리거 (카드 너비의 15%)
+    final actionThreshold = _cardWidth * _actionThresholdPercent;
+    if (!_hapticTriggered && _currentOffset.abs() > actionThreshold) {
       _hapticTriggered = true;
       HapticFeedbackHelper.mediumImpact();
     }
     
-    // 삭제 임계값에 도달했을 때 강한 햅틱
-    if (_dragExtent.abs() > _deleteThreshold && _hapticTriggered) {
+    // 삭제 임계값에 도달했을 때 강한 햅틱 (카드 너비의 40%)
+    final deleteThreshold = _cardWidth * _deleteThresholdPercent;
+    if (_currentOffset.abs() > deleteThreshold && _hapticTriggered) {
       HapticFeedbackHelper.heavyImpact();
       _hapticTriggered = false; // 반복 방지
     }
   }
 
-  void _handleDragEnd(DragEndDetails details) {
+  void _handleDragEnd(DragEndDetails details) async {
+    _isDragging = false;
     final velocity = details.velocity.pixelsPerSecond.dx;
-    final extent = _dragExtent.abs();
+    final extent = _currentOffset.abs();
     
-    if (extent > _deleteThreshold || velocity.abs() > 800) {
-      // 삭제 액션
+    // 카드 너비의 40% 계산
+    final deleteThreshold = _cardWidth * _deleteThresholdPercent;
+    
+    if (extent > deleteThreshold || velocity.abs() > 800) {
+      // 40% 이상 스와이프 시 삭제/편집 액션
       if (_isSwipingLeft && widget.onDelete != null) {
         HapticFeedbackHelper.success();
-        _animateToOffset(-MediaQuery.of(context).size.width);
-        Future.delayed(const Duration(milliseconds: 300), () {
-          widget.onDelete!();
-        });
+        // 삭제 확인 다이얼로그 표시
+        await widget.onDelete!();
+        // 다이얼로그가 닫힌 후 원위치로 복귀
+        if (mounted) {
+          _animateToOffset(0);
+        }
       } else if (!_isSwipingLeft && widget.onEdit != null) {
         HapticFeedbackHelper.success();
-        _animateToOffset(MediaQuery.of(context).size.width);
+        // 편집 화면으로 이동 전 원위치로 복귀
+        _animateToOffset(0);
         Future.delayed(const Duration(milliseconds: 300), () {
           widget.onEdit!();
         });
+      } else {
+        // 액션이 없는 경우 원위치로 복귀
+        _animateToOffset(0);
       }
-    } else if (extent > _swipeThreshold) {
-      // 액션 버튼 표시
-      HapticFeedbackHelper.lightImpact();
-      _animateToOffset(_isSwipingLeft ? -_swipeThreshold : _swipeThreshold);
     } else {
-      // 원위치로 복귀
+      // 40% 미만: 모두 원위치로 복귀
       _animateToOffset(0);
     }
   }
 
   void _animateToOffset(double offset) {
+    // 애니메이션 컨트롤러 리셋
+    _controller.stop();
+    _controller.value = 0;
+    
     _animation = Tween<double>(
-      begin: _dragExtent,
+      begin: _currentOffset,
       end: offset,
     ).animate(CurvedAnimation(
       parent: _controller,
       curve: Curves.easeOutExpo,
     ));
-    _controller.forward(from: 0).then((_) {
-      setState(() {
-        _dragExtent = offset;
-      });
-    });
+    
+    _controller.forward();
   }
 
   @override
@@ -135,9 +193,7 @@ class _SwipeableSubscriptionCardState extends State<SwipeableSubscriptionCard>
             margin: const EdgeInsets.symmetric(vertical: 8, horizontal: 16),
             decoration: BoxDecoration(
               borderRadius: BorderRadius.circular(16),
-              color: _isSwipingLeft 
-                  ? AppColors.dangerColor 
-                  : AppColors.primaryColor,
+              color: Colors.transparent,  // 투명하게 변경
             ),
             child: Row(
               mainAxisAlignment: MainAxisAlignment.spaceBetween,
@@ -148,10 +204,10 @@ class _SwipeableSubscriptionCardState extends State<SwipeableSubscriptionCard>
                     padding: const EdgeInsets.only(left: 24),
                     child: AnimatedOpacity(
                       duration: const Duration(milliseconds: 200),
-                      opacity: _dragExtent > 40 ? 1.0 : 0.0,
+                      opacity: _currentOffset > (_cardWidth * 0.10) ? 1.0 : 0.0,
                       child: AnimatedScale(
                         duration: const Duration(milliseconds: 200),
-                        scale: _dragExtent > 40 ? 1.0 : 0.5,
+                        scale: _currentOffset > (_cardWidth * 0.10) ? 1.0 : 0.5,
                         child: const Icon(
                           Icons.edit_rounded,
                           color: Colors.white,
@@ -166,12 +222,12 @@ class _SwipeableSubscriptionCardState extends State<SwipeableSubscriptionCard>
                     padding: const EdgeInsets.only(right: 24),
                     child: AnimatedOpacity(
                       duration: const Duration(milliseconds: 200),
-                      opacity: _dragExtent.abs() > 40 ? 1.0 : 0.0,
+                      opacity: _currentOffset.abs() > (_cardWidth * 0.10) ? 1.0 : 0.0,
                       child: AnimatedScale(
                         duration: const Duration(milliseconds: 200),
-                        scale: _dragExtent.abs() > 40 ? 1.0 : 0.5,
+                        scale: _currentOffset.abs() > (_cardWidth * 0.10) ? 1.0 : 0.5,
                         child: Icon(
-                          _dragExtent.abs() > _deleteThreshold 
+                          _currentOffset.abs() > (_cardWidth * _deleteThresholdPercent) 
                               ? Icons.delete_forever_rounded
                               : Icons.delete_rounded,
                           color: Colors.white,
@@ -186,33 +242,24 @@ class _SwipeableSubscriptionCardState extends State<SwipeableSubscriptionCard>
         ),
         
         // 스와이프 가능한 카드
-        AnimatedBuilder(
-          animation: _animation,
-          builder: (context, child) {
-            return Transform.translate(
-              offset: Offset(_animation.value, 0),
-              child: child,
-            );
-          },
-          child: GestureDetector(
-            onHorizontalDragStart: _handleDragStart,
-            onHorizontalDragUpdate: _handleDragUpdate,
-            onHorizontalDragEnd: _handleDragEnd,
-            child: Transform.translate(
-              offset: Offset(_dragExtent, 0),
-              child: Transform.scale(
-                scale: 1.0 - (_dragExtent.abs() / 2000),
-                child: Transform.rotate(
-                  angle: _dragExtent / 2000,
-                  child: GestureDetector(
-                    onTap: () {
-                      if (_dragExtent.abs() < 10) {
-                        widget.onTap?.call();
-                      }
-                    },
-                    child: SubscriptionCard(
-                      subscription: widget.subscription,
-                    ),
+        GestureDetector(
+          onHorizontalDragStart: _handleDragStart,
+          onHorizontalDragUpdate: _handleDragUpdate,
+          onHorizontalDragEnd: _handleDragEnd,
+          child: Transform.translate(
+            offset: Offset(_currentOffset, 0),
+            child: Transform.scale(
+              scale: 1.0 - (_currentOffset.abs() / 2000),
+              child: Transform.rotate(
+                angle: _currentOffset / 2000,
+                child: GestureDetector(
+                  onTap: () {
+                    if (_currentOffset.abs() < 10) {
+                      widget.onTap?.call();
+                    }
+                  },
+                  child: SubscriptionCard(
+                    subscription: widget.subscription,
                   ),
                 ),
               ),

lib/widgets/themed_text.dart

@@ -39,22 +39,20 @@ class ThemedText extends StatelessWidget {
     bool forceLight = false,
     bool forceDark = false,
   }) {
-    if (forceLight) return Colors.white;
-    if (forceDark) return AppColors.textPrimary;
+    if (forceLight) return AppColors.pureWhite;
+    if (forceDark) return AppColors.darkNavy;
     
     final brightness = Theme.of(context).brightness;
     
-    // 글래스모피즘 환경에서는 보통 어두운 배경 위에 밝은 텍스트
+    // 글래스모피즘 환경에서는 배경이 밝으므로 어두운 텍스트 사용
     if (_isGlassmorphicContext(context)) {
-      return brightness == Brightness.dark 
-          ? Colors.white.withValues(alpha: 0.95)
-          : AppColors.textPrimary;
+      return AppColors.darkNavy;  // color.md 가이드: 밝은 배경 위 어두운 텍스트
     }
     
     // 일반 환경
     return brightness == Brightness.dark 
-        ? Colors.white 
-        : AppColors.textPrimary;
+        ? AppColors.pureWhite 
+        : AppColors.darkNavy;
   }
 
   /// 글래스모피즘 컨텍스트인지 확인

lib/widgets/website_icon.dart

@@ -660,7 +660,7 @@ class _WebsiteIconState extends State<WebsiteIcon>
       }
 
       return ClipRRect(
-        key: ValueKey('local_logo_${_localLogoPath}'),
+        key: ValueKey('local_logo_$_localLogoPath'),
         borderRadius: BorderRadius.circular(widget.size * 0.2),
         child: Image.file(
           File(_localLogoPath!),