:root {
  --bg: #fafaf9;
  --text: #1c1917;
  --muted: #57534e;
  --accent: #4f46e5;
  --line: #e7e5e4;
  --card: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14120f;
    --text: #f5f5f4;
    --muted: #a8a29e;
    --accent: #a5b4fc;
    --line: #2b2723;
    --card: #1c1917;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
.wrap { max-width: 42rem; margin: 0 auto; padding: 0 16px; }
header { border-bottom: 1px solid var(--line); }
header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 16px; padding-bottom: 16px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 650; font-size: 1.15rem; }
.brand img { width: 32px; height: 32px; }
nav { display: flex; gap: 18px; font-size: 0.95rem; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--accent); }
main { padding: 40px 0 56px; }
h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 12px; }
h2 { font-size: 1.2rem; margin: 32px 0 6px; }
p, li { color: var(--text); }
.lede { font-size: 1.15rem; color: var(--muted); margin-bottom: 8px; }
.note { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; margin: 24px 0; color: var(--muted); font-size: 0.95rem; }
a { color: var(--accent); }
ul { padding-left: 1.25rem; }
footer { border-top: 1px solid var(--line); padding: 20px 0 32px; color: var(--muted); font-size: 0.9rem; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; }
footer a { color: var(--muted); }
.updated { color: var(--muted); font-size: 0.9rem; margin-top: 0; }