:root {
  --bg: #f6f3ec; --fg: #2b2620; --muted: #6d655a; --accent: #8a5a12; --line: #ddd3c2; --head: #ece4d4; --code: #e9e2d4;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #17191d; --fg: #e8e4dc; --muted: #a39d92; --accent: #f3d98a; --line: #33363c; --head: #23262b; --code: #2a2d33; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif; }
header { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 12px 16px; border-bottom: 1px solid var(--line); }
header a { color: var(--accent); text-decoration: none; font-weight: 600; }
header .play { border: 1px solid var(--accent); border-radius: 6px; padding: 4px 12px; }
main { max-width: 980px; margin: 0 auto; padding: 8px 16px 48px; }
h1 { font-size: 1.9em; line-height: 1.2; }
h2 { margin-top: 1.8em; border-bottom: 1px solid var(--line); padding-bottom: 4px; }
h3 { margin-top: 1.4em; }
a { color: var(--accent); }
code { background: var(--code); border-radius: 4px; padding: 1px 5px; font-size: 0.92em; }
.table { overflow-x: auto; margin: 12px 0; }
table { border-collapse: collapse; font-size: 0.92em; }
th, td { border: 1px solid var(--line); padding: 5px 9px; text-align: left; vertical-align: top; }
th { background: var(--head); }
.back { margin-top: 2.5em; color: var(--muted); }
.back a { display: inline-block; padding: 12px 0; }