:root {
  --text: #1b1b1f;
  --muted: #5d5d66;
  --bg: #ffffff;
  --surface: #f3f6fa;
  --line: #e3e3e8;
  --accent: #208aef;
  --todo: #fff4c2;
}
@media (prefers-color-scheme: dark) {
  :root {
    --text: #ececf1;
    --muted: #a4a4ae;
    --bg: #151518;
    --surface: #1f2228;
    --line: #2c2c33;
    --accent: #5aa9f5;
    --todo: #4a3f00;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
header.site, footer.site, main { max-width: 46rem; margin: 0 auto; padding-left: 1rem; padding-right: 1rem; }
header.site { display: flex; align-items: center; gap: .6rem; padding-top: 1.2rem; }
header.site a { color: var(--text); text-decoration: none; font-weight: 600; }
header.site img { width: 32px; height: 32px; }
main { padding-top: 1.5rem; padding-bottom: 3rem; }
footer.site { padding-bottom: 2.5rem; border-top: 1px solid var(--line); padding-top: 1rem; color: var(--muted); font-size: .9rem; }
footer.site a { color: var(--muted); }
footer.site nav { display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; }
h1 { font-size: 1.9rem; line-height: 1.2; margin: 0 0 .25rem; }
h2 { font-size: 1.25rem; margin: 2.2rem 0 .5rem; padding-top: 1rem; border-top: 1px solid var(--line); }
h3 { font-size: 1.05rem; margin: 1.4rem 0 .3rem; }
p, li { margin: .4rem 0; }
.muted { color: var(--muted); }
.lead { font-size: 1.15rem; }
a { color: var(--accent); }
table { width: 100%; border-collapse: collapse; margin: .6rem 0; font-size: .95rem; }
th, td { text-align: left; vertical-align: top; padding: .5rem .4rem; border-bottom: 1px solid var(--line); }
th { font-weight: 600; }
.table-wrap { overflow-x: auto; }
mark { background: var(--todo); color: inherit; padding: 0 .2rem; border-radius: 3px; }
.features { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: .8rem; }
.features li { margin: 0; background: var(--surface); border-radius: 12px; padding: .9rem 1rem; }
.features strong { display: block; }
.note { background: var(--surface); border-radius: 12px; padding: .9rem 1rem; }