:root {
  --bg: #ffffff;
  --fg: #16181c;
  --muted: #5c6470;
  --line: #e4e7ec;
  --accent: #00825f;
  --card: #f6f8f9;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1013;
    --fg: #eef1f3;
    --muted: #9aa4ae;
    --line: #232b31;
    --accent: #2ee6a8;
    --card: #131a1f;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  padding: 2.5rem 1.25rem 5rem;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
}
main { max-width: 46rem; margin: 0 auto; }
h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 .35rem; letter-spacing: -.02em; }
h2 { font-size: 1.2rem; margin: 2.5rem 0 .6rem; letter-spacing: -.01em; }
h3 { font-size: 1rem; margin: 1.6rem 0 .4rem; }
p, li { color: var(--fg); }
.lead { color: var(--muted); margin: 0 0 2rem; }
.updated { color: var(--muted); font-size: .85rem; }
a { color: var(--accent); }
ul { padding-left: 1.2rem; }
li { margin: .3rem 0; }
hr { border: 0; border-top: 1px solid var(--line); margin: 2.5rem 0; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem 1.25rem;
  margin: 1.25rem 0;
}
.card p:first-child { margin-top: 0; }
.card p:last-child { margin-bottom: 0; }
table { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: .95rem; }
th, td { text-align: left; padding: .55rem .5rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: .82rem; text-transform: uppercase; letter-spacing: .04em; }
.nav { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.5rem; font-size: .95rem; }
footer { margin-top: 4rem; padding-top: 1.5rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .87rem; }