:root {
  --bg: #fbfaf7;
  --fg: #1d1d1b;
  --muted: #5d5b55;
  --rule: #e3e0d8;
  --accent: #1f5f8b;
  --panel: #f1efe9;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161614;
    --fg: #ecebe6;
    --muted: #a9a69d;
    --rule: #34332f;
    --accent: #7fb6dc;
    --panel: #201f1c;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 44rem; margin: 0 auto; padding: 3rem 1rem 4rem; }
h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 .25rem; }
h2 { font-size: 1.3rem; margin: 2.5rem 0 .5rem; padding-top: 1rem; border-top: 1px solid var(--rule); }
h3 { font-size: 1.05rem; margin: 1.5rem 0 .25rem; }
p, ul { margin: .5rem 0 1rem; }
ul { padding-left: 1.25rem; }
li { margin: .25rem 0; }
a { color: var(--accent); }
.meta { color: var(--muted); margin-bottom: 2rem; }
.summary { background: var(--panel); border-radius: 8px; padding: 1rem 1.25rem; }
.summary ul { margin-bottom: 0; }
dl { margin: .5rem 0 1rem; }
dt { font-weight: 600; margin-top: .75rem; }
dd { margin: 0 0 0 1rem; }
nav ol { padding-left: 1.25rem; columns: 2 14rem; }
address { font-style: normal; }
.lead { font-size: 1.2rem; color: var(--muted); }
.button { display: inline-block; margin: .5rem .5rem 0 0; padding: .6rem 1.1rem; border-radius: 8px; background: var(--accent); color: var(--bg); text-decoration: none; font-weight: 600; }
footer { margin-top: 3rem; padding-top: 1rem; border-top: 1px solid var(--rule); color: var(--muted); font-size: .9rem; }