@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('../assets/fonts/inter-latin-var.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  /* Colors */
  --color-ink: #0a0a0a;
  --color-paper: #fafafa;
  --color-mid: #6b6b6b;
  --color-rule: #e0e0e0;
  --color-ghost: #f0f0f0;

  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;

  /* Fluid type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.825rem + 0.25vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.25rem + 1.25vw, 2.5rem);
  --text-2xl: clamp(2rem, 1.5rem + 2.5vw, 4rem);
  --text-hero: clamp(2.5rem, 1.75rem + 3.75vw, 5.5rem);

  /* Letterspacing */
  --ls-tight: -0.03em;
  --ls-normal: 0;
  --ls-wide: 0.06em;

  /* Line heights */
  --lh-tight: 1.05;
  --lh-snug: 1.25;
  --lh-body: 1.6;

  /* Fluid spacing */
  --space-xs: clamp(0.5rem, 0.4rem + 0.5vw, 0.75rem);
  --space-sm: clamp(0.75rem, 0.6rem + 0.75vw, 1.25rem);
  --space-md: clamp(1.25rem, 1rem + 1.25vw, 2rem);
  --space-lg: clamp(2rem, 1.5rem + 2.5vw, 4rem);
  --space-xl: clamp(3rem, 2rem + 5vw, 6rem);
  --space-2xl: clamp(4rem, 3rem + 5vw, 8rem);

  /* Layout */
  --container-max: 72rem;
  --container-narrow: 48rem;
  --container-pad: clamp(1rem, 0.5rem + 2.5vw, 2rem);

  /* Motion */
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 600ms;
  --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-in-out: cubic-bezier(0.42, 0, 0.58, 1);
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --duration-fast: 0ms;
    --duration-normal: 0ms;
    --duration-slow: 0ms;
  }
}