:root {
  color-scheme: light dark;
  --bg: #f6f7fa;
  --surface: #fff;
  --text: #172136;
  --muted: #657087;
  --border: #e0e4eb;
  --navy: #102344;
  --gold: #c99a3b;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101725;
    --surface: #192437;
    --text: #edf1f8;
    --muted: #aeb9cc;
    --border: #2c3a50;
    --navy: #d5b56b;
    --gold: #e2c57b;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.75 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
header, main, footer { width: min(760px, calc(100% - 32px)); margin: 0 auto; }
header { padding: 28px 0 14px; }
.brand { color: var(--navy); font-size: 1.05rem; font-weight: 750; letter-spacing: .02em; text-decoration: none; }
nav { display: flex; gap: 18px; margin-top: 10px; }
nav a, a { color: var(--navy); }
main { margin-top: 14px; padding: clamp(22px, 5vw, 42px); background: var(--surface); border: 1px solid var(--border); border-radius: 24px; }
h1 { margin: 0 0 6px; font-size: clamp(1.8rem, 5vw, 2.35rem); line-height: 1.2; }
h2 { margin: 30px 0 8px; font-size: 1.2rem; line-height: 1.4; }
p, li { color: var(--muted); }
.updated { margin: 0 0 24px; color: var(--muted); font-size: .92rem; }
ul { padding-left: 1.25rem; }
footer { padding: 24px 0 36px; color: var(--muted); font-size: .9rem; }