/**
 * Design Tokens - CSS Custom Properties
 */

:root {
  /* Brand Colors */
  --color-primary: #228383;
  --color-primary-dark: #1a6a6a;
  --color-primary-light: #2a9d9d;
  --color-accent-bright: #22b3b3;
  --color-accent-warm: #ffb366;
  --color-success: #22b373;
  --color-success-dark: #1a8a5a;
  --color-error: #dc3545;
  --color-error-dark: #c92a2a;
  --color-warning: #ffc107;

  /* Neutral Colors */
  --color-white: #ffffff;
  --color-black: #000000;
  --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 (Dark Theme) */
  --bg-primary: rgba(43, 45, 47, 0.95);
  --bg-secondary: rgba(51, 51, 51, 0.9);
  --bg-tertiary: rgba(81, 81, 81, 0.9);
  --bg-overlay: rgba(0, 0, 0, 0.76);
  --bg-glass: rgba(255, 255, 255, 0.05);
  --bg-glass-hover: rgba(255, 255, 255, 0.1);

  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #e5e7eb;
  --text-muted: #9ca3af;
  --text-inverse: #1f2937;

  /* Spacing Scale (8px base) */
  --spacing-0: 0;
  --spacing-1: 0.25rem;  /* 4px */
  --spacing-2: 0.5rem;   /* 8px */
  --spacing-3: 0.75rem;  /* 12px */
  --spacing-4: 1rem;     /* 16px */
  --spacing-5: 1.25rem;  /* 20px */
  --spacing-6: 1.5rem;   /* 24px */
  --spacing-8: 2rem;     /* 32px */
  --spacing-10: 2.5rem;  /* 40px */
  --spacing-12: 3rem;    /* 48px */
  --spacing-16: 4rem;    /* 64px */

  /* Typography */
  --font-body: Actor, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: Cabin, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Courier New', Courier, monospace;

  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-lg: 1.125rem;   /* 18px */
  --font-size-xl: 1.25rem;    /* 20px */
  --font-size-2xl: 1.5rem;    /* 24px */
  --font-size-3xl: 1.875rem;  /* 30px */
  --font-size-4xl: 2.25rem;   /* 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;

  /* Border Radius */
  --radius-sm: 0.25rem;   /* 4px */
  --radius-md: 0.375rem;  /* 6px */
  --radius-lg: 0.5rem;    /* 8px */
  --radius-xl: 0.75rem;   /* 12px */
  --radius-2xl: 1rem;     /* 16px */
  --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-glow: 0 0 20px rgba(34, 179, 179, 0.3);
  --shadow-glow-strong: 0 0 30px rgba(34, 179, 179, 0.5);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 200ms ease-in-out;
  --transition-slow: 300ms ease-in-out;
  --transition-all: all var(--transition-base);

  /* Z-Index Scale */
  --z-base: 1;
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;

  /* Accessibility */
  --focus-outline: 3px solid var(--color-accent-bright);
  --focus-offset: 2px;
  --min-touch-target: 44px;
}

/* Dark theme adjustments */
@media (prefers-color-scheme: dark) {
  :root {
    /* Already dark by default, but can add overrides if needed */
  }
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  :root {
    --transition-fast: 0ms;
    --transition-base: 0ms;
    --transition-slow: 0ms;
  }
}