/* ============================================
   CSS CUSTOM PROPERTIES (Variables extendidas)
   ============================================ */
:root {
  --color-primary: #2563eb;
  --color-primary-dark: #764ba2;
  --color-primary-light: #a8b9ff;
  --color-primary-hover: #5568d3;
  --color-success: #10b981;
  --color-success-light: #d1fae5;
  --color-success-dark: #059669;
  --color-warning: #f59e0b;
  --color-warning-light: #fef3c7;
  --color-warning-dark: #d97706;
  --color-error: #ef4444;
  --color-error-light: #fee2e2;
  --color-error-dark: #dc2626;
  --color-info: #3b82f6;
  --color-info-light: #dbeafe;
  --color-info-dark: #2563eb;
  --color-black: #000000;
  --color-white: #ffffff;
  --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;
  --bg-primary: #111827;
  --bg-surface: #1F2937;
  --bg-surface-variant: #374151;
  --bg-surface-container: #4B5563;
  --header-height: 64px;
  --sidebar-width: 320px;
  --text-primary: #F9FAFB;
  --text-secondary: #9CA3AF;
  --border-color: #374151;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 20px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;
  --z-base: 0;
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, "Courier New", monospace;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-md: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;
  --font-size-3xl: 30px;
  --font-size-4xl: 36px;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  --bottom-sheet-height: 60vh;
  --max-content-width: 1200px;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg-primary: #F9FAFB;
    --bg-surface: #FFFFFF;
    --bg-surface-variant: #F3F4F6;
    --bg-surface-container: #E5E7EB;
    --text-primary: #111827;
    --text-secondary: #6B7280;
    --border-color: #E5E7EB;
  }
}