:root { color-scheme: light dark; }
body {
  margin: 0;
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #fff;
  color: #1c1c1e;
}
@media (prefers-color-scheme: dark) {
  body { background: #0d0d14; color: #e5e5ea; }
  a { color: #64d2ff; }
}
main { max-width: 720px; margin: 0 auto; padding: 32px 20px 64px; }
h1 { font-size: 30px; margin-bottom: 4px; }
h2 { font-size: 21px; margin-top: 32px; }
h3 { font-size: 18px; margin-top: 24px; }
.updated { opacity: 0.6; margin-top: 0; }
li { margin: 6px 0; }