:root {
  --bg: #fbfbfa;
  --fg: #1d1d1b;
  --muted: #5f5f5a;
  --line: #e3e3de;
  --link: #1f4fbf;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141413;
    --fg: #ececea;
    --muted: #a3a39d;
    --line: #2c2c2a;
    --link: #8fb0ff;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
main {
  max-width: 42rem;
  margin: 0 auto;
  padding: 3rem 1rem 2rem;
}
nav {
  max-width: 42rem;
  margin: 0 auto;
  padding: 1.25rem 1rem 0;
  display: flex;
  gap: 1.25rem;
  font-size: 0.95rem;
}
h1 { font-size: 1.75rem; line-height: 1.25; margin: 0 0 0.5rem; }
h2 { font-size: 1.15rem; margin: 2rem 0 0.5rem; }
p, ul { margin: 0 0 1rem; }
ul { padding-left: 1.25rem; }
li { margin-bottom: 0.35rem; }
a { color: var(--link); }
code { font-size: 0.9em; overflow-wrap: anywhere; }
.lead { color: var(--muted); }
footer {
  max-width: 42rem;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.875rem;
}