:root {
  --bg: #fbfaf7;
  --text: #1f2328;
  --muted: #59636e;
  --rule: #e3e0d8;
  --link: #0b5cad;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171a;
    --text: #e6e6e3;
    --muted: #9aa2ab;
    --rule: #2c3036;
    --link: #79b0f0;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 680px; margin: 0 auto; padding: 48px 16px 64px; }
h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 1.15rem; margin: 32px 0 8px; }
.lede { color: var(--muted); font-size: 1.1rem; margin: 0 0 24px; }
a { color: var(--link); }
ul { padding-left: 1.25rem; }
footer { border-top: 1px solid var(--rule); margin-top: 40px; padding-top: 16px; color: var(--muted); font-size: 0.95rem; }
footer a { margin-right: 16px; }