:root {
  --bg: #f6f6f5;
  --fg: #171717;
  --muted: #6b6b68;
  --card: #ffffff;
  --line: #e4e4e1;
  --link: #171717;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121211;
    --fg: #ededeb;
    --muted: #a3a39f;
    --card: #1c1c1b;
    --line: #2e2e2c;
    --link: #ededeb;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}
a { color: var(--link); text-underline-offset: 2px; }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }
.nav { padding-top: 20px; padding-bottom: 20px; }
.brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; text-decoration: none; }
.brand img { border-radius: 6px; }
.hero { padding: 48px 0 32px; }
.hero h1 { font-size: clamp(32px, 6vw, 48px); line-height: 1.1; margin: 0 0 16px; letter-spacing: -0.02em; }
.lede { font-size: 19px; margin: 0 0 16px; }
.muted { color: var(--muted); }
.grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); padding-bottom: 48px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px; }
.card h2 { font-size: 16px; margin: 0 0 6px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.prose { padding-bottom: 32px; }
.prose h1 { font-size: 32px; margin: 8px 0 4px; }
.prose h2 { font-size: 18px; margin: 28px 0 8px; }
.prose li { margin-bottom: 6px; }
.foot { border-top: 1px solid var(--line); padding-top: 16px; padding-bottom: 32px; color: var(--muted); font-size: 14px; }
.foot a { color: var(--muted); }