:root {
  --bg: #ffffff;
  --surface: #f5f4f2;
  --text: #1c1b1a;
  --muted: #6b6762;
  --accent: #e8521f;
  --border: #e6e3df;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111110;
    --surface: #1c1b1a;
    --text: #f2f0ed;
    --muted: #a39e98;
    --accent: #ff7a45;
    --border: #2c2a28;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 48px 20px 80px; }
header { display: flex; align-items: center; gap: 14px; margin-bottom: 32px; }
header img { width: 56px; height: 56px; border-radius: 13px; }
header a { color: inherit; text-decoration: none; font-weight: 700; font-size: 22px; }
h1 { font-size: 36px; line-height: 1.15; margin: 0 0 12px; letter-spacing: -0.02em; }
h2 { font-size: 22px; margin: 40px 0 8px; }
h3 { font-size: 18px; margin: 28px 0 4px; }
p, li { color: var(--text); }
.lede { font-size: 20px; color: var(--muted); margin: 0 0 32px; }
.muted { color: var(--muted); font-size: 15px; }
a { color: var(--accent); }
ul { padding-left: 22px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin: 24px 0; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 16px 18px; }
.card strong { display: block; margin-bottom: 4px; }
footer { margin-top: 64px; padding-top: 20px; border-top: 1px solid var(--border); color: var(--muted); font-size: 14px; }
footer a { color: var(--muted); margin-right: 16px; }