/*
 * Design Tokens - 디자인 시스템 변수
 * 프로젝트 전체에서 일관된 디자인을 위한 CSS 변수 정의
 */

:root {
  /* Primary Colors */
  --color-primary: #3b82f6;
  --color-primary-hover: #2563eb;
  --color-primary-light: #eff6ff;

  /* Semantic Colors */
  --color-danger: #ef4444;
  --color-danger-hover: #dc2626;
  --color-danger-light: #fef2f2;

  --color-success: #10b981;
  --color-success-hover: #059669;
  --color-success-light: #ecfdf5;

  --color-warning: #f59e0b;
  --color-warning-hover: #d97706;
  --color-warning-light: #fffbeb;

  --color-info: #06b6d4;
  --color-info-hover: #0891b2;
  --color-info-light: #ecfeff;

  /* Gray Scale */
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;

  /* Background Colors */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f9fafb;
  --color-bg-tertiary: #f3f4f6;

  /* Text Colors */
  --color-text-primary: #1f2937;
  --color-text-secondary: #6b7280;
  --color-text-muted: #9ca3af;
  --color-text-inverse: #ffffff;

  /* Border Colors */
  --color-border: #e5e7eb;
  --color-border-dark: #d1d5db;

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);

  /* Font Sizes */
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-md: 15px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 20px;
  --font-size-3xl: 24px;

  /* Font Weights */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Line Heights */
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.2s ease;
  --transition-slow: 0.3s ease;

  /* Z-index layers */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-tooltip: 600;
}