:root {
  --bg: #f7f5f0;
  --fg: #1d1c1a;
  --muted: #5f5b54;
  --rule: #d9d4ca;
  --link: #1d1c1a;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #151514;
    --fg: #ecebe7;
    --muted: #a8a49c;
    --rule: #34322f;
    --link: #ecebe7;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 18px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}

main {
  max-width: 38rem;
  margin: 0 auto;
  padding: 18vh 1.25rem 4rem;
}

h1 {
  font-size: 2.25rem;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 1rem;
}

h2 {
  font-size: 1.15rem;
  margin: 2.25rem 0 0.5rem;
}

p, li { margin: 0 0 1rem; }

ul { padding-left: 1.25rem; }

a {
  color: var(--link);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

.lede { font-size: 1.25rem; color: var(--muted); }

.small { font-size: 0.9rem; color: var(--muted); }

footer {
  margin-top: 4rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
}

footer a { margin-right: 1.25rem; }

main.doc { padding-top: 10vh; }