:root {
  --bg: #faf8f5;
  --fg: #1d1a17;
  --muted: #6b645c;
  --line: #e4ded6;
  --accent: #b4442f;
  --card: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161412;
    --fg: #ece7e1;
    --muted: #a39b91;
    --line: #2e2a26;
    --accent: #e0745d;
    --card: #1e1b18;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 48px 16px 80px; }
header nav { display: flex; gap: 20px; flex-wrap: wrap; font-size: 15px; margin-bottom: 40px; }
a { color: var(--accent); }
nav a { text-decoration: none; }
nav a[aria-current] { color: var(--fg); font-weight: 600; }
h1 { font-size: 34px; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 21px; margin: 40px 0 8px; }
.lead { color: var(--muted); font-size: 18px; margin-top: 0; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 20px 24px; margin: 24px 0; }
ul { padding-left: 22px; }
li { margin: 4px 0; }
.ru { border-top: 1px solid var(--line); margin-top: 56px; padding-top: 8px; }
footer { color: var(--muted); font-size: 14px; margin-top: 56px; }