:root {
  color-scheme: light dark;
  --fg: #1a1a1a;
  --bg: #ffffff;
  --muted: #5a5a5a;
  --rule: #e2e2e2;
  --link: #0b5cad;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fg: #e8e8e8;
    --bg: #141414;
    --muted: #a0a0a0;
    --rule: #2e2e2e;
    --link: #7ab6f0;
  }
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

main {
  max-width: 44rem;
  margin: 0 auto;
  padding: 4rem 1.5rem 2rem;
}

h1 {
  font-size: 1.9rem;
  line-height: 1.2;
  margin: 0 0 1rem;
  letter-spacing: -0.01em;
}

h2 {
  font-size: 1.1rem;
  margin: 2.25rem 0 0.6rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--rule);
}

p { margin: 0 0 1rem; }

.lede {
  color: var(--muted);
  font-size: 1.05rem;
}

ul { margin: 0 0 1rem; padding-left: 1.25rem; }
li { margin-bottom: 0.4rem; }

a { color: var(--link); }

footer {
  max-width: 44rem;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
  color: var(--muted);
  font-size: 0.9rem;
}