/* Design Tokens - Colors, Typography, Spacing */

:root {
  /* Colors */
  --color-bg: #ffffff;
  --color-text-primary: #111111;
  --color-text-secondary: #666666;
  --color-text-hover: #333333;
  --color-border: #eeeeee;
  --color-overlay: rgba(0, 0, 0, 0.3);

  /* Typography */
  --font-primary: 'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Caveat', cursive;

  /* Font Sizes (responsive) */
  --font-size-xs: clamp(0.75rem, 1.5vw, 0.875rem); /* 12-14px */
  --font-size-sm: clamp(0.875rem, 2vw, 1rem); /* 14-16px */
  --font-size-base: clamp(1rem, 2vw, 1.125rem); /* 16-18px */
  --font-size-md: clamp(1.125rem, 2.5vw, 1.25rem); /* 18-20px */
  --font-size-lg: clamp(1.25rem, 3vw, 1.5rem); /* 20-24px */
  --font-size-xl: clamp(1.5rem, 4vw, 2rem); /* 24-32px */
  --font-size-2xl: clamp(2rem, 5vw, 2.5rem); /* 32-40px */
  --font-size-3xl: clamp(2.5rem, 6vw, 4rem); /* 40-64px */
  --font-size-hero: clamp(3rem, 8vw, 5rem); /* 48-80px */
  --font-size-display: clamp(5rem, 10vw, 8rem); /* 80-128px */

  /* Font Weights */
  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-bold: 700;

  /* Line Heights */
  --line-height-tight: 1.2;
  --line-height-base: 1.5;
  --line-height-relaxed: 1.7;

  /* Spacing */
  --space-xs: 0.5rem; /* 8px */
  --space-sm: 1rem; /* 16px */
  --space-md: 2rem; /* 32px */
  --space-lg: 4rem; /* 64px */
  --space-xl: 8rem; /* 128px */
  --space-section: clamp(5rem, 10vw, 10rem); /* 80-160px */

  /* Layout */
  --max-width: 900px;
  --max-width-narrow: 700px;
  --drawer-width: 560px;
  --drawer-width-mobile: 100%;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.6s ease-out;

  /* Z-index */
  --z-nav: 100;
  --z-drawer-overlay: 200;
  --z-drawer: 300;

  /* Borders */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-width: 1px;
}

/* Dark mode support (optional - for future) */
@media (prefers-color-scheme: dark) {
  :root {
    /* Uncomment to enable dark mode
    --color-bg: #111111;
    --color-text-primary: #ffffff;
    --color-text-secondary: #aaaaaa;
    --color-text-hover: #cccccc;
    --color-border: #333333;
    --color-overlay: rgba(255, 255, 255, 0.1);
    */
  }
}