:root {
  --bg: #fafaf7;
  --fg: #1a1a1a;
  --muted: #666;
  --accent: #8a6d4f;
  --rule: #e5e2dc;
  --max: 640px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 4rem 1.5rem 6rem;
}

header {
  margin-bottom: 3rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--rule);
}

header a.brand {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: -0.01em;
}

header .tagline {
  color: var(--muted);
  font-size: 0.95rem;
  margin-top: 0.25rem;
}

h1 {
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
}

h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 2.5rem 0 0.75rem;
}

p { margin: 0 0 1rem; }

ul {
  padding-left: 1.25rem;
  margin: 0 0 1rem;
}

li { margin-bottom: 0.4rem; }

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.subtitle {
  color: var(--muted);
  margin-top: 0;
  margin-bottom: 2rem;
}

.meta {
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
}

footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 4rem;
}

footer a { color: var(--muted); }

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15140f;
    --fg: #e8e6df;
    --muted: #9a968b;
    --accent: #c9a878;
    --rule: #2a2823;
  }
}