:root {
  --bg: #ffffff;
  --text: #11181c;
  --muted: #60646c;
  --accent: #1a7ae0;
  --border: #e0e1e6;
  --mark: #fff3bf;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1e3b;
    --text: #edeef0;
    --muted: #b0b4ba;
    --accent: #6cb2ff;
    --border: #1f3a63;
    --mark: #5c4a00;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}
main { max-width: 680px; margin: 0 auto; padding: 32px 16px 64px; }
h1 { font-size: 2rem; line-height: 1.2; margin: 24px 0 4px; }
h2 { font-size: 1.15rem; margin: 32px 0 8px; }
ul { padding-left: 1.25rem; }
li { margin: 4px 0; }
a { color: var(--accent); }
mark { background: var(--mark); color: inherit; padding: 0 2px; }
.meta { color: var(--muted); font-size: 0.95rem; }
.brand { display: inline-flex; align-items: center; gap: 8px; color: inherit; font-weight: 700; text-decoration: none; }
.brand img { border-radius: 8px; }
.home { text-align: left; }
.logo { border-radius: 22px; margin-top: 24px; }
.lead { font-size: 1.15rem; }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--border); color: var(--muted); font-size: 0.95rem; }