/* Reset, body, paper texture, font families */
* { box-sizing: border-box; margin: 0; padding: 0; }
html {
  scroll-behavior: smooth;
  /* Offset for sticky nav so #anchor scrolls don't hide section headings
     under the nav bar. */
  scroll-padding-top: 90px;
}
body {
  font-family: 'Manrope', system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200' viewBox='0 0 200 200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.04 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1;
  opacity: 0.7;
}
main, nav, footer { position: relative; z-index: 2; }

.display { font-family: 'Unbounded', sans-serif; font-weight: 700; letter-spacing: -0.02em; line-height: 1.05; }
.serif { font-family: 'Lora', Georgia, serif; }
.mono { font-family: 'JetBrains Mono', monospace; font-feature-settings: 'tnum'; }

h1, h2, h3, h4 { font-family: 'Unbounded', sans-serif; font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; }
a { color: var(--ink); text-decoration-thickness: 1px; text-underline-offset: 3px; }

@media print {
  body { background: white; }
}

/* Skip-to-content link */
.skip-link {
  position: absolute;
  left: 1rem;
  top: -40px;
  background: var(--ink);
  color: var(--bg);
  padding: 8px 14px;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  z-index: 1000;
  transition: top 0.15s var(--ease-out);
}
.skip-link:focus {
  top: 1rem;
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Honor user motion preferences */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}