:root {
  --paper: #f7f7f4;
  --ink: #1d2124;
  --muted: #5b6267;
  --rule: #d4d6d2;
  --link: #1f5a8a;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #15181a;
    --ink: #e4e6e3;
    --muted: #a2a9ad;
    --rule: #33393c;
    --link: #8cbce6;
  }
}
html { background: var(--paper); color: var(--ink); }
body {
  margin: 0 auto;
  max-width: 44rem;
  padding: 2.5rem 1rem 4rem;
  font: 16px/1.6 "Segoe UI", system-ui, sans-serif;
}
h1 { font-size: 1.6rem; margin: 0 0 .25rem; }
h2 { font-size: 1.15rem; margin: 2rem 0 .5rem; padding-top: 1rem; border-top: 1px solid var(--rule); }
p, li { margin: .5rem 0; }
.lead { color: var(--muted); margin-bottom: 2rem; }
a { color: var(--link); }
code { font-family: Consolas, "Cascadia Mono", monospace; font-size: .95em; }
footer { margin-top: 3rem; color: var(--muted); font-size: .9rem; }