:root {
  color-scheme: light dark;
  --bg: #f3f6f5;
  --surface: #fff;
  --on: #14201c;
  --muted: #5a6b66;
  --accent: #1e9f8c;
  --line: rgba(20, 32, 28, 0.12);
  --max: 42rem;
}
html.dark {
  --bg: #0a1016;
  --surface: #121a22;
  --on: #e8eef2;
  --muted: #9aabb4;
  --accent: #4ec9b4;
  --line: rgba(232, 238, 242, 0.12);
}
* { box-sizing: border-box; }
html { scrollbar-width: none; }
html::-webkit-scrollbar { display: none; width: 0; height: 0; }
body {
  margin: 0;
  font: 16px/1.55 Inter, system-ui, sans-serif;
  background: var(--bg);
  color: var(--on);
}
a { color: var(--accent); text-decoration-thickness: 1px; }
a:hover { text-decoration: none; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 1.25rem 1.15rem 4rem; }
.top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1rem;
  margin-bottom: 1.5rem;
}
.back { font-size: 0.92rem; }
.langs {
  display: flex;
  gap: 0.35rem;
}
.langs a, .langs span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  min-width: 2.75rem;
  padding: 0 0.7rem;
  border-radius: 0.4rem;
  border: 1px solid var(--line);
  color: var(--muted);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 650;
  letter-spacing: 0.04em;
  transition: color 160ms ease, background-color 160ms ease, border-color 160ms ease;
}
.langs a:hover { color: var(--on); border-color: var(--accent); }
.langs span[aria-current="true"] {
  color: var(--on);
  background: var(--surface);
  border-color: var(--accent);
}
h1 {
  font-size: 1.55rem;
  letter-spacing: -0.03em;
  margin: 0 0 0.4rem;
  line-height: 1.2;
}
.meta { color: var(--muted); font-size: 0.88rem; margin: 0 0 1.5rem; }
h2 {
  font-size: 1.08rem;
  margin: 1.6rem 0 0.55rem;
  letter-spacing: -0.02em;
}
p, li { color: var(--on); }
p { margin: 0 0 0.85rem; }
ul, ol { margin: 0 0 0.95rem; padding-left: 1.2rem; }
li { margin: 0.25rem 0; }
.box {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  padding: 0.85rem 1rem;
  margin: 0 0 1.15rem;
}
.docs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.9rem;
  margin: 1.5rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: 0.88rem;
}
@media (prefers-reduced-motion: reduce) {
  .langs a, .langs span { transition: none; }
}