:root {
  color-scheme: light dark;
  --bg: #f6f1e7;
  --card: #fffdf8;
  --text: #23201c;
  --muted: #6b6257;
  --accent: #f2512e;
  --border: #e6dbc7;
  --shadow: rgba(35, 32, 28, .10);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1814;
    --card: #262119;
    --text: #f4ece0;
    --muted: #b9ab97;
    --accent: #ff7a5c;
    --border: #3b332a;
    --shadow: rgba(0, 0, 0, .45);
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}
main { max-width: 860px; margin: 0 auto; padding: 32px 20px 56px; }
nav { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0 12px; }
nav a {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 14px;
  text-decoration: none;
  box-shadow: 0 2px 0 var(--shadow);
}
nav a:hover { border-color: var(--accent); }
.lang { display: flex; gap: 10px; margin: 0 0 26px; font-size: .95rem; }
.lang a { text-decoration: none; }
a { color: var(--accent); }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
  box-shadow: 6px 6px 0 var(--shadow);
}
h1 { line-height: 1.15; margin-top: 0; letter-spacing: -.01em; }
h2 { margin-top: 30px; }
.muted { color: var(--muted); }
code { background: rgba(127, 127, 127, .14); padding: 2px 5px; border-radius: 6px; }
ul { padding-left: 22px; }
li { margin: 4px 0; }
footer { margin-top: 30px; color: var(--muted); font-size: .95rem; }