/* =============================================
   variables.css - Design Tokens
   Le Restaurant Michelin Management System
   ============================================= */

:root {
  /* ─── Colors: Primary (Michelin black & gold) ─── */
  --color-primary: #1a1a1a;
  --color-primary-light: #2d2d2d;
  --color-primary-dark: #0d0d0d;
  --color-accent: #d4af37;
  --color-accent-light: #e6c75c;
  --color-accent-dark: #a88a2a;

  /* ─── Colors: Neutrals ─── */
  --color-white: #ffffff;
  --color-gray-50: #fafafa;
  --color-gray-100: #f5f5f5;
  --color-gray-200: #eeeeee;
  --color-gray-300: #e0e0e0;
  --color-gray-400: #bdbdbd;
  --color-gray-500: #9e9e9e;
  --color-gray-600: #757575;
  --color-gray-700: #616161;
  --color-gray-800: #424242;
  --color-gray-900: #212121;

  /* ─── Colors: Backgrounds ─── */
  --color-bg-primary: #fafafa;
  --color-bg-secondary: #ffffff;
  --color-bg-elevated: #ffffff;

  /* ─── Colors: Text ─── */
  --color-text-primary: #1a1a1a;
  --color-text-secondary: #616161;
  --color-text-tertiary: #9e9e9e;
  --color-text-inverse: #ffffff;

  /* ─── Colors: Table Status ─── */
  --color-status-available: #2ecc71;
  --color-status-available-bg: #e8f5e9;
  --color-status-available-border: #27ae60;

  --color-status-reserved: #f39c12;
  --color-status-reserved-bg: #fff3e0;
  --color-status-reserved-border: #e67e22;

  --color-status-occupied: #e74c3c;
  --color-status-occupied-bg: #ffebee;
  --color-status-occupied-border: #c0392b;

  --color-status-cleaning: #ff9800;
  --color-status-cleaning-bg: #fff3e0;
  --color-status-cleaning-border: #f57c00;

  --color-status-maintenance: #9c27b0;
  --color-status-maintenance-bg: #f3e5f5;
  --color-status-maintenance-border: #7b1fa2;

  /* ─── Colors: VIP ─── */
  --color-vip: #d4af37;
  --color-vip-bg: #fff9e6;
  --color-vip-border: #b8941f;

  /* ─── Colors: Semantic ─── */
  --color-success: #27ae60;
  --color-success-light: #d5f5e3;
  --color-success-dark: #1e8449;

  --color-warning: #f39c12;
  --color-warning-light: #fef5e7;
  --color-warning-dark: #b9770e;

  --color-danger: #e74c3c;
  --color-danger-light: #fadbd8;
  --color-danger-dark: #922b21;

  --color-info: #3498db;
  --color-info-light: #d6eaf8;
  --color-info-dark: #21618c;

  /* ─── Typography ─── */
  --font-display: Georgia, 'Times New Roman', serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
               'Helvetica Neue', Arial, sans-serif;
  --font-mono: Menlo, Monaco, Consolas, 'Courier New', monospace;

  /* ─── Font Sizes ─── */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;

  /* ─── Font Weights ─── */
  --weight-light: 300;
  --weight-normal: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;

  /* ─── Line Heights ─── */
  --leading-tight: 1.2;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.75;

  /* ─── Letter Spacing ─── */
  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  --tracking-wider: 0.1em;

  /* ─── Spacing (4px grid) ─── */
  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* ─── Border Radius ─── */
  --radius-none: 0;
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* ─── Shadows ─── */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
               0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
               0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
               0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-gold: 0 4px 14px rgba(212, 175, 55, 0.3);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);

  /* ─── Transitions ─── */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;
  --ease-linear: linear;
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --transition-default: all var(--duration-normal) var(--ease-in-out);
  --transition-colors: color var(--duration-fast) var(--ease-in-out),
                       background-color var(--duration-fast) var(--ease-in-out);
  --transition-transform: transform var(--duration-normal) var(--ease-out);

  /* ─── Z-Index Scale ─── */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-popover: 500;
  --z-toast: 600;
  --z-tooltip: 700;

  /* ─── Menu System ─── */
  --color-menu-bg: var(--color-gray-50);
  --color-menu-card: var(--color-white);
  --color-menu-border: var(--color-gray-200);

  --color-item-available: var(--color-success);
  --color-item-sold-out: var(--color-gray-400);
  --color-item-chef-special: var(--color-accent);
  --color-item-allergen-warning: var(--color-danger);

  --color-package-border: var(--color-accent);
  --color-package-highlight: #fff9e6;

  --color-badge-vegan: #27ae60;
  --color-badge-vegetarian: #2ecc71;
  --color-badge-glutenfree: #f39c12;
  --color-badge-spicy: #e74c3c;

  /* ─── Breakpoints (reference) ─── */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
}