:root {
  --bg: #efe9e0;
  --text: #1d2228;
  --muted: #6b6a66;
  --accent: #d87a62;
  --link: #0a6fd6;
  --card: #f8f4ee;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1b1c1e;
    --text: #ece8e1;
    --muted: #a39f98;
    --link: #5aa9ff;
    --card: #25272a;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}
main { max-width: 680px; margin: 0 auto; padding: 48px 20px 64px; }
header { text-align: center; margin-bottom: 32px; }
.badge {
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--accent); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 30px; margin-bottom: 12px;
}
h1 { font-family: Georgia, "Times New Roman", serif; font-size: 34px; line-height: 1.2; margin: 0 0 6px; }
h2 { font-family: Georgia, "Times New Roman", serif; font-size: 23px; margin: 36px 0 10px; }
h3 { font-size: 17px; margin: 22px 0 4px; }
p, li { margin: 0 0 12px; }
.sub { color: var(--muted); margin: 0; }
.card { background: var(--card); border-radius: 16px; padding: 18px 22px; margin: 20px 0; }
a { color: var(--link); }
footer { color: var(--muted); font-size: 14px; text-align: center; margin-top: 48px; }