:root {
  --fg: #1f2328;
  --muted: #656d76;
  --bg: #ffffff;
  --line: #d8dee4;
}
@media (prefers-color-scheme: dark) {
  :root { --fg: #e6edf3; --muted: #9198a1; --bg: #0d1117; --line: #30363d; }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  padding: 3rem 1.25rem;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}
main { max-width: 34rem; margin: 0 auto; }
h1 { font-size: 1.35rem; margin: 0 0 .25rem; letter-spacing: -.01em; }
.lede { color: var(--muted); margin: 0 0 1.75rem; }
p { margin: 0 0 1rem; }
dl {
  margin: 1.75rem 0;
  border-top: 1px solid var(--line);
}
dt {
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--muted);
  padding-top: .85rem;
}
dd { margin: .15rem 0 .85rem; }
code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .875em;
}
.foot {
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: .875rem;
  color: var(--muted);
}
a { color: inherit; }