/* ==========================================================================
   DESIGN TOKENS - Material Space Theme
   ========================================================================== */
:root {
  /* Colors - Deep space blues */
  --color-primary: #4285f4;
  --color-primary-dark: #1a73e8;
  --color-text: #e2e8f0;
  --color-text-light: #94a3b8;
  --color-background: #0f172a;
  --color-surface: #1e293b;
  --color-surface-dark: #0f172a;
  --color-border: #334155;
  --color-accent-blue: #1a73e8;
  --color-accent-light: #4285f4;

  /* Gradients */
  --gradient-space: linear-gradient(
    180deg,
    var(--color-surface) 0%,
    var(--color-surface-dark) 100%
  );
  --gradient-subtle: linear-gradient(
    180deg,
    rgba(66, 133, 244, 0.1),
    rgba(26, 115, 232, 0.1)
  );

  /* Typography */
  --font-family-base: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Layout */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;

  /* Effects */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.3);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-medium: 250ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Elevation Overlays */
  --elevation-1: rgba(66, 133, 244, 0.03);
  --elevation-2: rgba(66, 133, 244, 0.05);
  --elevation-3: rgba(66, 133, 244, 0.08);
}