:root {
  --bg: #f6f5f2;
  --surface: #ffffff;
  --text: #1c1c22;
  --muted: #5d5d68;
  --line: #e3e1dc;
  --accent: #d9774f;
  --accent-2: #3fae8a;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101119;
    --surface: #181a25;
    --text: #f1f1f4;
    --muted: #a4a5b2;
    --line: #2a2c3a;
  }
}
* { 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;
}
a { color: var(--accent); }
header, main, footer { max-width: 760px; margin: 0 auto; padding: 0 20px; }
header { display: flex; align-items: center; gap: 12px; padding-top: 28px; }
header img { width: 40px; height: 40px; }
header a.brand { color: var(--text); text-decoration: none; font-weight: 700; font-size: 20px; }
header nav { margin-left: auto; display: flex; gap: 18px; font-size: 15px; }
header nav a { color: var(--muted); text-decoration: none; }
header nav a:hover { color: var(--text); }
h1 { font-size: clamp(34px, 6vw, 52px); line-height: 1.1; letter-spacing: -0.02em; margin: 48px 0 16px; }
h2 { font-size: 24px; margin: 40px 0 8px; }
h3 { font-size: 18px; margin: 28px 0 4px; }
p, li { color: var(--muted); }
strong { color: var(--text); }
.lede { font-size: 20px; }
.hero { width: 100%; border-radius: 14px; border: 1px solid var(--line); margin: 28px 0 8px; display: block; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 4px 24px 18px; margin: 24px 0; }
.note { font-size: 14px; }
footer { padding-top: 32px; padding-bottom: 48px; font-size: 14px; color: var(--muted); border-top: 1px solid var(--line); margin-top: 56px; }
@media (max-width: 520px) { header nav { gap: 12px; font-size: 14px; } }