:root {
  color-scheme: light dark;
  --primary: #146c2e;
  --surface: #f7fbf3;
  --on-surface: #181d17;
  --on-surface-variant: #414942;
  --outline-variant: #c1c9bb;
}
@media (prefers-color-scheme: dark) {
  :root {
    --primary: #8cd99b;
    --surface: #10140f;
    --on-surface: #e1e4db;
    --on-surface-variant: #c1c9bb;
    --outline-variant: #414942;
  }
}
body {
  margin: 0;
  background: var(--surface);
  color: var(--on-surface);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 56px 20px 80px; }
a { color: var(--primary); }
h1 { font-size: 28px; font-weight: 800; margin-bottom: 4px; }
.updated { color: var(--on-surface-variant); font-size: 13px; margin-bottom: 40px; }
h2 { font-size: 18px; font-weight: 700; margin-top: 36px; }
p, li { color: var(--on-surface-variant); font-size: 15px; }
.back { display: inline-block; margin-bottom: 24px; font-size: 14px; text-decoration: none; }

footer { max-width: 720px; margin: 0 auto; padding: 24px 20px 48px; border-top: 1px solid var(--outline-variant); text-align: center; }
footer .footer-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 20px; margin-bottom: 12px; font-size: 14px; }
footer a { text-decoration: none; }
footer a:hover { text-decoration: underline; }
footer p { font-size: 13px; margin: 0; }
.wrap { padding-bottom: 32px; }