:root {
  --bg: #f7f5ef;
  --card: #ffffff;
  --ink: #1f2a1f;
  --muted: #5b665b;
  --accent: #2f7d4f;
  --line: #e2ddd0;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141a15;
    --card: #1c241d;
    --ink: #e7ece6;
    --muted: #a3ada2;
    --accent: #6cc28f;
    --line: #2c372d;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
header.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 24px; }
.brand { font-weight: 700; font-size: 20px; color: var(--ink); text-decoration: none; }
nav a { color: var(--muted); text-decoration: none; margin-left: 16px; }
nav a:first-child { margin-left: 0; }
nav a:hover, a { color: var(--accent); }
h1 { font-size: 30px; line-height: 1.25; margin: 0 0 8px; }
h2 { font-size: 20px; margin: 32px 0 8px; }
h3 { font-size: 16px; margin: 20px 0 4px; }
.lead { color: var(--muted); font-size: 18px; margin: 0 0 24px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 20px 22px; margin: 16px 0; }
.meta { color: var(--muted); font-size: 14px; }
.lang { border-top: 1px solid var(--line); margin-top: 48px; padding-top: 8px; }
ul { padding-left: 22px; }
li { margin: 4px 0; }
footer { margin-top: 48px; color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); padding-top: 16px; }