:root {
  --bg: #eef2ec; --surface: #ffffff; --text: #15171a; --text2: #565b62;
  --brand: #17503d; --edge: #d9e0d6;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #101412; --surface: #1a1f1c; --text: #eef2ec; --text2: #a9b0aa; --brand: #8fd3a9; --edge: #2a312c; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 32px 16px 64px; overflow-wrap: anywhere; }
.back { margin: 0 0 24px; font-size: 15px; }
h1 { font-size: 30px; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 20px; margin: 32px 0 8px; }
p, li { margin: 0 0 12px; }
ul { padding-left: 20px; margin: 0 0 12px; }
a { color: var(--brand); }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--edge); font-size: 15px; }
footer a { margin-right: 16px; display: inline-block; margin-bottom: 8px; }