:root {
  --bg: #fbfbfa; --fg: #1d1f21; --muted: #6a6f75; --line: #e3e4e6; --card: #fff;
  --accent: #c2410c; --code-bg: #f2f2f0; --ok: #15803d;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141517; --fg: #e6e6e6; --muted: #9aa0a6; --line: #2c2e33; --card: #1b1c1f;
    --accent: #fb923c; --code-bg: #212226; --ok: #4ade80;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 880px; margin: 0 auto; padding: 24px 16px 64px; }
header { display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap; border-bottom: 1px solid var(--line); padding-bottom: 12px; }
header h1 { font-size: 1.6rem; margin: 0; letter-spacing: -0.01em; }
header nav { display: flex; gap: 14px; flex: 1; flex-wrap: wrap; }
header nav a { color: var(--muted); text-decoration: none; }
header nav a:hover, header nav a.on { color: var(--accent); }
.lang { margin-left: auto; display: flex; gap: 4px; }
.lang button {
  font: inherit; font-size: .85rem; background: none; color: var(--muted);
  border: 1px solid var(--line); border-radius: 6px; padding: 2px 8px; cursor: pointer;
}
.lang button.on { color: var(--fg); border-color: var(--muted); }
h2 { font-size: 1.25rem; margin: 2.2em 0 .5em; }
h3 { font-size: 1.05rem; margin: 1.6em 0 .4em; }
p, li { max-width: 72ch; }
a { color: var(--accent); }
.lead { color: var(--muted); font-size: 1.05rem; }
code, pre { font: .88rem/1.5 ui-monospace, "Cascadia Mono", Consolas, monospace; }
code { background: var(--code-bg); padding: 1px 5px; border-radius: 4px; word-break: break-word; }
pre { background: var(--code-bg); padding: 12px 14px; border-radius: 8px; overflow-x: auto; }
pre code { background: none; padding: 0; word-break: normal; }
.tbl { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: .93rem; }
th, td { text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; margin-top: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; text-decoration: none; color: inherit; }
.card:hover { border-color: var(--accent); }
.card b { display: block; font-size: 1.1rem; color: var(--accent); }
.card span { color: var(--muted); font-size: .93rem; }
.live { color: var(--muted); font-size: .9rem; }
.live b { color: var(--ok); font-weight: 600; }
footer { margin-top: 48px; color: var(--muted); font-size: .85rem; border-top: 1px solid var(--line); padding-top: 12px; }
html[data-lang="en"] [lang="ru"], html[data-lang="ru"] [lang="en"] { display: none; }