:root {
  --ink: #16202b;
  --muted: #5b6b7c;
  --rule: #dfe5ec;
  --bg: #ffffff;
  --accent: #0b5aa2;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}
.wrap { max-width: 46rem; margin: 0 auto; padding: 2.5rem 1.25rem 4rem; }
header { border-bottom: 1px solid var(--rule); padding-bottom: 1.25rem; margin-bottom: 2rem; }
.brand { font-weight: 700; letter-spacing: .02em; font-size: 1rem; color: var(--accent); text-decoration: none; }
.brand span { color: var(--muted); font-weight: 400; }
h1 { font-size: 1.75rem; line-height: 1.25; margin: 1.5rem 0 .35rem; }
.updated { color: var(--muted); font-size: .9rem; margin: 0 0 2rem; }
h2 { font-size: 1.05rem; margin: 2rem 0 .5rem; }
p, li { margin: 0 0 1rem; }
ul { padding-left: 1.25rem; }
li { margin-bottom: .5rem; }
a { color: var(--accent); }
strong { font-weight: 650; }
footer {
  margin-top: 3rem; padding-top: 1.25rem; border-top: 1px solid var(--rule);
  color: var(--muted); font-size: .9rem;
}
footer a { color: var(--muted); }
@media (prefers-color-scheme: dark) {
  :root { --ink: #e8edf3; --muted: #9aa9b8; --rule: #2a3543; --bg: #121a23; --accent: #6db3f2; }
}