:root {
  --bg: #f3f1e9;
  --text: #1f2a22;
  --muted: #5b6b5f;
  --accent: #3f6b47;
  --line: #d8d4c6;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161b17;
    --text: #e6e9e3;
    --muted: #a3ada5;
    --accent: #9cc9a3;
    --line: #2f3831;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  padding: 0 16px;
}
main { max-width: 44rem; margin: 0 auto; padding: 2.5rem 0 4rem; }
header { margin-bottom: 2rem; }
header a { color: var(--muted); text-decoration: none; font-weight: 600; }
h1 { font-size: 1.9rem; line-height: 1.2; margin: 0.5rem 0 0.25rem; }
h2 { font-size: 1.2rem; margin-top: 2.2rem; }
h3 { font-size: 1rem; margin-top: 1.5rem; }
p, li { max-width: 40rem; }
a { color: var(--accent); }
.meta { color: var(--muted); font-size: 0.9rem; }
nav.lang { font-size: 0.9rem; color: var(--muted); }
footer { margin-top: 3rem; padding-top: 1rem; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.9rem; }
footer a { margin-right: 1rem; }