feat: ERP 시스템 UI/UX 전면 재설계

색채 심리학 기반 컬러 시스템 구축:
- Primary Color를 신뢰감 있는 블루(#2563EB)로 변경
- 비즈니스 상태별 의미 있는 색상 체계 도입 (본사/지점/파트너사/고객사)
- 장비 상태별 색상 정의 (입고/출고/대여/폐기/수리중)
- 정보 계층을 명확히 하는 그레이 스케일 시스템

F-Pattern 레이아웃 적용:
- 1차 시선: 상단 헤더 (로고, 검색, 알림, 프로필)
- 2차 시선: 페이지 헤더 (제목, 브레드크럼, 주요 액션)
- 주요 작업 영역: 중앙 콘텐츠

1920x1080 해상도 최적화:
- 최대 콘텐츠 너비 1440px 제한
- 12컬럼 그리드 시스템 적용
- 수평 스크롤 제거

컴포넌트 시스템 개선:
- 호버 효과 및 마이크로 애니메이션 추가
- 비즈니스 상태별 배지 컴포넌트
- 향상된 입력 필드 인터랙션
- 프로그레스바, 칩 컴포넌트 추가

사이드바 UX 개선:
- 부드러운 접기/펼치기 애니메이션
- 활성 상태 아이콘 변화
- 알림 배지 표시 기능

🤖 Generated with [Claude Code](https://claude.ai/code)

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

lib/screens/common/theme_shadcn.dart

@@ -1,192 +1,341 @@
 import 'package:flutter/material.dart';
 import 'package:google_fonts/google_fonts.dart';
 
-/// shadcn/ui 스타일 테마 시스템
+/// ERP 시스템에 최적화된 색채 심리학 기반 테마 시스템
 class ShadcnTheme {
-  // Teal 기반 색상 시스템
+  // ============= 기본 색상 팔레트 =============
+  // 배경 및 표면 색상
   static const Color background = Color(0xFFFFFFFF);
-  static const Color foreground = Color(0xFF0F172A);
-  static const Color card = Color(0xFFFFFFFF);
-  static const Color cardForeground = Color(0xFF0F172A);
-  static const Color popover = Color(0xFFFFFFFF);
-  static const Color popoverForeground = Color(0xFF0F172A);
-  static const Color primary = Color(0xFF0D9488); // teal-600
-  static const Color primaryForeground = Color(0xFFFFFFFF);
-  static const Color secondary = Color(0xFFF0FDFA); // teal-50
-  static const Color secondaryForeground = Color(0xFF134E4A); // teal-900
-  static const Color muted = Color(0xFFF1F5F9); // slate-100
-  static const Color mutedForeground = Color(0xFF64748B); // slate-500
-  static const Color accent = Color(0xFF14B8A6); // teal-500
-  static const Color accentForeground = Color(0xFFFFFFFF);
-  static const Color destructive = Color(0xFFEF4444); // red-500
-  static const Color destructiveForeground = Color(0xFFFFFFFF);
-  static const Color border = Color(0xFFE5E7EB); // gray-200 (기본 border는 연한 회색)
-  static const Color input = Color(0xFFE5E7EB); // gray-200
-  static const Color ring = Color(0xFF14B8A6); // teal-500
-  static const Color radius = Color(0xFF000000); // 사용하지 않음
-
-  // Teal 그라데이션 색상
-  static const Color gradient1 = Color(0xFF14B8A6); // teal-500
-  static const Color gradient2 = Color(0xFF0D9488); // teal-600
-  static const Color gradient3 = Color(0xFF0F766E); // teal-700
-
-  // 상태 색상
-  static const Color success = Color(0xFF10B981); // emerald-500
-  static const Color warning = Color(0xFFF59E0B); // amber-500
-  static const Color error = Color(0xFFEF4444); // red-500
-  static const Color info = Color(0xFF0891B2); // cyan-600
+  static const Color backgroundSecondary = Color(0xFFF9FAFB); // 보조 배경
+  static const Color surface = Color(0xFFFFFFFF);
+  static const Color surfaceHover = Color(0xFFF3F4F6); // 호버 상태
   
-  // 추가 색상 (회사 구분용)
-  static const Color blue = Color(0xFF3B82F6); // blue-500
-  static const Color purple = Color(0xFF8B5CF6); // purple-500
-  static const Color green = Color(0xFF22C55E); // green-500
-
-  // 그림자 설정
-  static List<BoxShadow> get cardShadow => [
+  // 텍스트 색상
+  static const Color foreground = Color(0xFF111827); // 주요 텍스트 (진한 검정)
+  static const Color foregroundSecondary = Color(0xFF374151); // 보조 텍스트
+  static const Color foregroundMuted = Color(0xFF6B7280); // 비활성 텍스트
+  static const Color foregroundSubtle = Color(0xFF9CA3AF); // 희미한 텍스트
+  
+  // Primary 색상 (신뢰감 있는 블루)
+  static const Color primary = Color(0xFF2563EB); // blue-600
+  static const Color primaryDark = Color(0xFF1E40AF); // blue-800
+  static const Color primaryLight = Color(0xFFDBEAFE); // blue-100
+  static const Color primaryForeground = Color(0xFFFFFFFF);
+  
+  // Secondary 색상 (중립 그레이)
+  static const Color secondary = Color(0xFF6B7280); // gray-500
+  static const Color secondaryDark = Color(0xFF374151); // gray-700
+  static const Color secondaryLight = Color(0xFFF9FAFB); // gray-50
+  static const Color secondaryForeground = Color(0xFF111827);
+  
+  // ============= 시맨틱 색상 =============
+  static const Color success = Color(0xFF059669); // emerald-600
+  static const Color successLight = Color(0xFFD1FAE5); // emerald-100
+  static const Color successForeground = Color(0xFFFFFFFF);
+  
+  static const Color warning = Color(0xFFD97706); // amber-600
+  static const Color warningLight = Color(0xFFFEF3C7); // amber-100
+  static const Color warningForeground = Color(0xFFFFFFFF);
+  
+  static const Color error = Color(0xFFDC2626); // red-600
+  static const Color errorLight = Color(0xFFFEE2E2); // red-100
+  static const Color errorForeground = Color(0xFFFFFFFF);
+  
+  static const Color info = Color(0xFF0891B2); // cyan-600
+  static const Color infoLight = Color(0xFFCFFAFE); // cyan-100
+  static const Color infoForeground = Color(0xFFFFFFFF);
+  
+  // ============= 비즈니스 상태 색상 =============
+  // 회사 구분 색상
+  static const Color companyHeadquarters = Color(0xFF2563EB); // 본사 - Primary Blue (권위)
+  static const Color companyBranch = Color(0xFF7C3AED); // 지점 - Purple (연결성)
+  static const Color companyPartner = Color(0xFF059669); // 파트너사 - Green (협력)
+  static const Color companyCustomer = Color(0xFFEA580C); // 고객사 - Orange (활력)
+  
+  // 장비 상태 색상
+  static const Color equipmentIn = Color(0xFF059669); // 입고 - Green (진입/추가)
+  static const Color equipmentOut = Color(0xFF0891B2); // 출고 - Cyan (이동/프로세스)
+  static const Color equipmentRent = Color(0xFF7C3AED); // 대여 - Purple (임시 상태)
+  static const Color equipmentDisposal = Color(0xFF6B7280); // 폐기 - Gray (비활성)
+  static const Color equipmentRepair = Color(0xFFD97706); // 수리중 - Amber (주의 필요)
+  static const Color equipmentUnknown = Color(0xFF9CA3AF); // 알수없음 - Light Gray
+  
+  // ============= UI 요소 색상 =============
+  static const Color border = Color(0xFFE5E7EB); // gray-200
+  static const Color borderStrong = Color(0xFFD1D5DB); // gray-300
+  static const Color borderFocus = Color(0xFF2563EB); // primary
+  static const Color divider = Color(0xFFF3F4F6); // gray-100
+  
+  static const Color card = Color(0xFFFFFFFF);
+  static const Color cardForeground = Color(0xFF111827);
+  static const Color cardHover = Color(0xFFF9FAFB);
+  
+  static const Color input = Color(0xFFFFFFFF);
+  static const Color inputBorder = Color(0xFFD1D5DB); // gray-300
+  static const Color inputHover = Color(0xFFF9FAFB);
+  static const Color inputFocus = Color(0xFF2563EB);
+  
+  // 기존 호환성을 위한 별칭
+  static const Color destructive = error;
+  static const Color destructiveForeground = errorForeground;
+  static const Color muted = backgroundSecondary;
+  static const Color mutedForeground = foregroundMuted;
+  static const Color accent = primary;
+  static const Color accentForeground = primaryForeground;
+  static const Color ring = primaryDark;
+  static const Color popover = card;
+  static const Color popoverForeground = cardForeground;
+  
+  // Teal 그라데이션 색상 (기존 호환)
+  static const Color gradient1 = primary;
+  static const Color gradient2 = primaryDark;
+  static const Color gradient3 = Color(0xFF1D4ED8); // blue-700
+  
+  // 추가 색상 (기존 호환)
+  static const Color blue = primary;
+  static const Color purple = companyBranch;
+  static const Color green = companyPartner;
+  
+  static const Color radius = Color(0xFF000000); // 사용하지 않음
+  
+  // ============= 그림자 시스템 =============
+  static List<BoxShadow> get shadowXs => [
     BoxShadow(
-      color: primary.withValues(alpha: 0.08),
-      blurRadius: 8,
-      offset: const Offset(0, 2),
-    ),
-    BoxShadow(
-      color: Colors.black.withValues(alpha: 0.04),
-      blurRadius: 16,
-      offset: const Offset(0, 8),
+      color: Colors.black.withValues(alpha: 0.05),
+      blurRadius: 2,
+      offset: const Offset(0, 1),
     ),
   ];
-
-  static List<BoxShadow> get buttonShadow => [
+  
+  static List<BoxShadow> get shadowSm => [
     BoxShadow(
-      color: primary.withValues(alpha: 0.2),
+      color: Colors.black.withValues(alpha: 0.05),
       blurRadius: 4,
       offset: const Offset(0, 2),
     ),
   ];
-
-  // 간격 시스템
+  
+  static List<BoxShadow> get shadowMd => [
+    BoxShadow(
+      color: Colors.black.withValues(alpha: 0.08),
+      blurRadius: 8,
+      offset: const Offset(0, 4),
+    ),
+  ];
+  
+  static List<BoxShadow> get shadowLg => [
+    BoxShadow(
+      color: Colors.black.withValues(alpha: 0.10),
+      blurRadius: 16,
+      offset: const Offset(0, 8),
+    ),
+  ];
+  
+  static List<BoxShadow> get shadowXl => [
+    BoxShadow(
+      color: Colors.black.withValues(alpha: 0.15),
+      blurRadius: 24,
+      offset: const Offset(0, 12),
+    ),
+  ];
+  
+  // 카드 및 버튼 그림자 (기존 호환)
+  static List<BoxShadow> get cardShadow => shadowMd;
+  static List<BoxShadow> get buttonShadow => shadowSm;
+  
+  // ============= 간격 시스템 (8px 기반) =============
+  static const double spacing0 = 0.0;
   static const double spacing1 = 4.0;
   static const double spacing2 = 8.0;
   static const double spacing3 = 12.0;
   static const double spacing4 = 16.0;
   static const double spacing5 = 20.0;
   static const double spacing6 = 24.0;
+  static const double spacing7 = 28.0;
   static const double spacing8 = 32.0;
+  static const double spacing9 = 36.0;
   static const double spacing10 = 40.0;
   static const double spacing12 = 48.0;
+  static const double spacing14 = 56.0;
   static const double spacing16 = 64.0;
   static const double spacing20 = 80.0;
-
-  // 라운드 설정
+  static const double spacing24 = 96.0;
+  
+  // ============= 라운드 설정 =============
   static const double radiusNone = 0.0;
-  static const double radiusSm = 2.0;
+  static const double radiusXs = 2.0;
+  static const double radiusSm = 4.0;
   static const double radiusMd = 6.0;
   static const double radiusLg = 8.0;
   static const double radiusXl = 12.0;
   static const double radius2xl = 16.0;
   static const double radius3xl = 24.0;
   static const double radiusFull = 9999.0;
-
-  // 타이포그래피 시스템 (통일된 크기)
+  
+  // ============= 타이포그래피 시스템 =============
+  // 헤딩 스타일
   static TextStyle get headingH1 => GoogleFonts.inter(
-    fontSize: 32,
+    fontSize: 36,
     fontWeight: FontWeight.w700,
     color: foreground,
     letterSpacing: -0.02,
+    height: 1.2,
   );
-
+  
   static TextStyle get headingH2 => GoogleFonts.inter(
+    fontSize: 28,
+    fontWeight: FontWeight.w600,
+    color: foreground,
+    letterSpacing: -0.01,
+    height: 1.3,
+  );
+  
+  static TextStyle get headingH3 => GoogleFonts.inter(
     fontSize: 24,
     fontWeight: FontWeight.w600,
     color: foreground,
     letterSpacing: -0.01,
+    height: 1.35,
   );
-
-  static TextStyle get headingH3 => GoogleFonts.inter(
+  
+  static TextStyle get headingH4 => GoogleFonts.inter(
     fontSize: 20,
     fontWeight: FontWeight.w500,
     color: foreground,
-    letterSpacing: -0.01,
+    letterSpacing: 0,
+    height: 1.4,
   );
-
-  static TextStyle get headingH4 => GoogleFonts.inter(
+  
+  static TextStyle get headingH5 => GoogleFonts.inter(
+    fontSize: 18,
+    fontWeight: FontWeight.w500,
+    color: foreground,
+    letterSpacing: 0,
+    height: 1.4,
+  );
+  
+  static TextStyle get headingH6 => GoogleFonts.inter(
     fontSize: 16,
     fontWeight: FontWeight.w500,
     color: foreground,
     letterSpacing: 0,
+    height: 1.5,
   );
-
+  
+  // 본문 스타일
   static TextStyle get bodyLarge => GoogleFonts.inter(
-    fontSize: 14,
+    fontSize: 16,
     fontWeight: FontWeight.w400,
     color: foreground,
     letterSpacing: 0,
+    height: 1.6,
   );
-
+  
   static TextStyle get bodyMedium => GoogleFonts.inter(
     fontSize: 14,
     fontWeight: FontWeight.w400,
     color: foreground,
     letterSpacing: 0,
+    height: 1.6,
   );
-
+  
   static TextStyle get bodySmall => GoogleFonts.inter(
+    fontSize: 13,
+    fontWeight: FontWeight.w400,
+    color: foregroundSecondary,
+    letterSpacing: 0,
+    height: 1.5,
+  );
+  
+  static TextStyle get bodyXs => GoogleFonts.inter(
     fontSize: 12,
     fontWeight: FontWeight.w400,
-    color: mutedForeground,
+    color: foregroundMuted,
     letterSpacing: 0,
+    height: 1.5,
   );
-
+  
+  // 기타 스타일
   static TextStyle get bodyMuted => GoogleFonts.inter(
     fontSize: 14,
     fontWeight: FontWeight.w400,
-    color: mutedForeground,
+    color: foregroundMuted,
     letterSpacing: 0,
+    height: 1.6,
   );
-
+  
   static TextStyle get labelLarge => GoogleFonts.inter(
     fontSize: 14,
     fontWeight: FontWeight.w500,
     color: foreground,
-    letterSpacing: 0,
+    letterSpacing: 0.02,
+    height: 1.4,
   );
-
+  
   static TextStyle get labelMedium => GoogleFonts.inter(
-    fontSize: 12,
+    fontSize: 13,
     fontWeight: FontWeight.w500,
     color: foreground,
-    letterSpacing: 0,
+    letterSpacing: 0.02,
+    height: 1.4,
   );
-
+  
   static TextStyle get labelSmall => GoogleFonts.inter(
-    fontSize: 10,
+    fontSize: 12,
     fontWeight: FontWeight.w500,
-    color: mutedForeground,
-    letterSpacing: 0,
+    color: foregroundSecondary,
+    letterSpacing: 0.02,
+    height: 1.4,
   );
-
-  // Flutter 테마 데이터
+  
+  static TextStyle get caption => GoogleFonts.inter(
+    fontSize: 11,
+    fontWeight: FontWeight.w400,
+    color: foregroundMuted,
+    letterSpacing: 0.02,
+    height: 1.4,
+  );
+  
+  // 코드/모노스페이스
+  static TextStyle get code => GoogleFonts.jetBrainsMono(
+    fontSize: 13,
+    fontWeight: FontWeight.w400,
+    color: foreground,
+    letterSpacing: 0,
+    height: 1.5,
+  );
+  
+  // ============= Flutter 테마 데이터 =============
   static ThemeData get lightTheme {
     return ThemeData(
       useMaterial3: true,
       colorScheme: const ColorScheme.light(
         primary: primary,
+        primaryContainer: primaryLight,
         secondary: secondary,
+        secondaryContainer: secondaryLight,
         surface: background,
         surfaceContainerHighest: card,
         onSurface: foreground,
         onPrimary: primaryForeground,
         onSecondary: secondaryForeground,
-        error: destructive,
-        onError: destructiveForeground,
+        error: error,
+        errorContainer: errorLight,
+        onError: errorForeground,
         outline: border,
-        outlineVariant: input,
+        outlineVariant: divider,
       ),
       scaffoldBackgroundColor: background,
       textTheme: TextTheme(
-        headlineLarge: headingH1,
-        headlineMedium: headingH2,
-        headlineSmall: headingH3,
-        titleLarge: headingH4,
+        displayLarge: headingH1,
+        displayMedium: headingH2,
+        displaySmall: headingH3,
+        headlineLarge: headingH3,
+        headlineMedium: headingH4,
+        headlineSmall: headingH5,
+        titleLarge: headingH6,
+        titleMedium: labelLarge,
+        titleSmall: labelMedium,
         bodyLarge: bodyLarge,
         bodyMedium: bodyMedium,
         bodySmall: bodySmall,
@@ -198,11 +347,16 @@ class ShadcnTheme {
         backgroundColor: background,
         foregroundColor: foreground,
         elevation: 0,
-        scrolledUnderElevation: 1,
-        shadowColor: Colors.black.withValues(alpha: 0.1),
+        scrolledUnderElevation: 0,
+        shadowColor: Colors.transparent,
         surfaceTintColor: Colors.transparent,
-        titleTextStyle: headingH4,
-        iconTheme: const IconThemeData(color: foreground),
+        centerTitle: false,
+        titleTextStyle: headingH5,
+        toolbarHeight: 64,
+        iconTheme: const IconThemeData(
+          color: foregroundSecondary,
+          size: 20,
+        ),
       ),
       cardTheme: CardThemeData(
         color: card,
@@ -211,86 +365,234 @@ class ShadcnTheme {
           borderRadius: BorderRadius.circular(radiusLg),
           side: const BorderSide(color: border, width: 1),
         ),
-        shadowColor: Colors.black.withValues(alpha: 0.05),
+        shadowColor: Colors.transparent,
+        margin: EdgeInsets.zero,
       ),
       elevatedButtonTheme: ElevatedButtonThemeData(
         style: ElevatedButton.styleFrom(
           backgroundColor: primary,
           foregroundColor: primaryForeground,
+          disabledBackgroundColor: backgroundSecondary,
+          disabledForegroundColor: foregroundMuted,
           elevation: 0,
           shadowColor: Colors.transparent,
           shape: RoundedRectangleBorder(
             borderRadius: BorderRadius.circular(radiusMd),
           ),
+          minimumSize: const Size(64, 40),
           padding: const EdgeInsets.symmetric(
-            horizontal: spacing4,
+            horizontal: spacing6,
             vertical: spacing2,
           ),
-          textStyle: labelMedium,
+          textStyle: labelMedium.copyWith(fontWeight: FontWeight.w500),
         ),
       ),
       outlinedButtonTheme: OutlinedButtonThemeData(
         style: OutlinedButton.styleFrom(
           foregroundColor: foreground,
-          side: const BorderSide(color: border),
+          disabledForegroundColor: foregroundMuted,
+          side: const BorderSide(color: border, width: 1),
           elevation: 0,
           shadowColor: Colors.transparent,
           shape: RoundedRectangleBorder(
             borderRadius: BorderRadius.circular(radiusMd),
           ),
+          minimumSize: const Size(64, 40),
           padding: const EdgeInsets.symmetric(
-            horizontal: spacing4,
+            horizontal: spacing6,
             vertical: spacing2,
           ),
-          textStyle: labelMedium,
+          textStyle: labelMedium.copyWith(fontWeight: FontWeight.w500),
         ),
       ),
       textButtonTheme: TextButtonThemeData(
         style: TextButton.styleFrom(
-          foregroundColor: foreground,
+          foregroundColor: primary,
+          disabledForegroundColor: foregroundMuted,
           elevation: 0,
           shadowColor: Colors.transparent,
           shape: RoundedRectangleBorder(
             borderRadius: BorderRadius.circular(radiusMd),
           ),
+          minimumSize: const Size(64, 40),
           padding: const EdgeInsets.symmetric(
             horizontal: spacing4,
             vertical: spacing2,
           ),
-          textStyle: labelMedium,
+          textStyle: labelMedium.copyWith(fontWeight: FontWeight.w500),
         ),
       ),
       inputDecorationTheme: InputDecorationTheme(
         filled: true,
-        fillColor: background,
+        fillColor: input,
+        hoverColor: inputHover,
         contentPadding: const EdgeInsets.symmetric(
           horizontal: spacing3,
-          vertical: spacing2,
+          vertical: spacing3,
         ),
         border: OutlineInputBorder(
           borderRadius: BorderRadius.circular(radiusMd),
-          borderSide: const BorderSide(color: input),
+          borderSide: const BorderSide(color: inputBorder, width: 1),
         ),
         enabledBorder: OutlineInputBorder(
           borderRadius: BorderRadius.circular(radiusMd),
-          borderSide: const BorderSide(color: input),
+          borderSide: const BorderSide(color: inputBorder, width: 1),
         ),
         focusedBorder: OutlineInputBorder(
           borderRadius: BorderRadius.circular(radiusMd),
-          borderSide: const BorderSide(color: ring, width: 2),
+          borderSide: const BorderSide(color: inputFocus, width: 2),
         ),
         errorBorder: OutlineInputBorder(
           borderRadius: BorderRadius.circular(radiusMd),
-          borderSide: const BorderSide(color: destructive),
+          borderSide: const BorderSide(color: error, width: 1),
         ),
         focusedErrorBorder: OutlineInputBorder(
           borderRadius: BorderRadius.circular(radiusMd),
-          borderSide: const BorderSide(color: destructive, width: 2),
+          borderSide: const BorderSide(color: error, width: 2),
         ),
-        hintStyle: bodyMedium.copyWith(color: mutedForeground),
-        labelStyle: labelMedium,
+        disabledBorder: OutlineInputBorder(
+          borderRadius: BorderRadius.circular(radiusMd),
+          borderSide: BorderSide(color: border.withValues(alpha: 0.5), width: 1),
+        ),
+        hintStyle: bodyMedium.copyWith(color: foregroundSubtle),
+        labelStyle: labelMedium.copyWith(color: foregroundSecondary),
+        helperStyle: bodySmall.copyWith(color: foregroundMuted),
+        errorStyle: bodySmall.copyWith(color: error),
+        prefixIconColor: foregroundMuted,
+        suffixIconColor: foregroundMuted,
+      ),
+      dividerTheme: const DividerThemeData(
+        color: divider,
+        thickness: 1,
+        space: 1,
+      ),
+      chipTheme: ChipThemeData(
+        backgroundColor: backgroundSecondary,
+        disabledColor: backgroundSecondary.withValues(alpha: 0.5),
+        selectedColor: primaryLight,
+        secondarySelectedColor: primaryLight,
+        labelStyle: labelSmall,
+        secondaryLabelStyle: labelSmall,
+        padding: const EdgeInsets.symmetric(horizontal: spacing2, vertical: spacing1),
+        shape: RoundedRectangleBorder(
+          borderRadius: BorderRadius.circular(radiusFull),
+          side: const BorderSide(color: Colors.transparent),
+        ),
+      ),
+      dialogTheme: DialogThemeData(
+        backgroundColor: card,
+        elevation: 0,
+        shape: RoundedRectangleBorder(
+          borderRadius: BorderRadius.circular(radiusLg),
+        ),
+        titleTextStyle: headingH5,
+        contentTextStyle: bodyMedium,
+      ),
+      tooltipTheme: TooltipThemeData(
+        decoration: BoxDecoration(
+          color: foreground,
+          borderRadius: BorderRadius.circular(radiusMd),
+        ),
+        textStyle: bodySmall.copyWith(color: background),
+        padding: const EdgeInsets.symmetric(
+          horizontal: spacing3,
+          vertical: spacing2,
+        ),
+      ),
+      snackBarTheme: SnackBarThemeData(
+        backgroundColor: foreground,
+        contentTextStyle: bodyMedium.copyWith(color: background),
+        actionTextColor: primaryLight,
+        behavior: SnackBarBehavior.floating,
+        shape: RoundedRectangleBorder(
+          borderRadius: BorderRadius.circular(radiusMd),
+        ),
+      ),
+      dataTableTheme: DataTableThemeData(
+        headingRowColor: WidgetStateProperty.all(backgroundSecondary),
+        headingTextStyle: labelMedium.copyWith(
+          color: foreground,
+          fontWeight: FontWeight.w600,
+        ),
+        dataTextStyle: bodyMedium,
+        dividerThickness: 1,
+        horizontalMargin: spacing4,
+        columnSpacing: spacing6,
+        headingRowHeight: 48,
+        dataRowMinHeight: 56,
+        dataRowMaxHeight: 56,
       ),
-      dividerTheme: const DividerThemeData(color: border, thickness: 1),
     );
   }
-}
+  
+  // ============= 유틸리티 메서드 =============
+  /// 회사 타입에 따른 색상 반환
+  static Color getCompanyColor(String type) {
+    switch (type.toLowerCase()) {
+      case '본사':
+      case 'headquarters':
+        return companyHeadquarters;
+      case '지점':
+      case 'branch':
+        return companyBranch;
+      case '파트너사':
+      case 'partner':
+        return companyPartner;
+      case '고객사':
+      case 'customer':
+        return companyCustomer;
+      default:
+        return secondary;
+    }
+  }
+  
+  /// 장비 상태에 따른 색상 반환
+  static Color getEquipmentStatusColor(String status) {
+    switch (status.toLowerCase()) {
+      case '입고':
+      case 'in':
+        return equipmentIn;
+      case '출고':
+      case 'out':
+        return equipmentOut;
+      case '대여':
+      case 'rent':
+        return equipmentRent;
+      case '폐기':
+      case 'disposal':
+        return equipmentDisposal;
+      case '수리중':
+      case 'repair':
+        return equipmentRepair;
+      case '알수없음':
+      case 'unknown':
+        return equipmentUnknown;
+      default:
+        return secondary;
+    }
+  }
+  
+  /// 상태별 배경색 반환 (연한 버전)
+  static Color getStatusBackgroundColor(String status) {
+    switch (status.toLowerCase()) {
+      case 'success':
+      case '성공':
+      case '완료':
+        return successLight;
+      case 'warning':
+      case '경고':
+      case '주의':
+        return warningLight;
+      case 'error':
+      case '오류':
+      case '실패':
+        return errorLight;
+      case 'info':
+      case '정보':
+      case '알림':
+        return infoLight;
+      default:
+        return backgroundSecondary;
+    }
+  }
+}