:root {
  --bg: #f6f7f5;
  --paper: #ffffff;
  --ink: #1f2522;
  --muted: #5d6a63;
  --line: #d9dfdb;
  --accent: #c2412d;
  --link: #24618f;
  --link-visited: #5b4a8b;
  --side: #eef1ee;
  --box: #f8faf8;
  --code: #eef2ef;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141816;
    --paper: #1b201d;
    --ink: #e3e8e5;
    --muted: #9aa8a0;
    --line: #2f3833;
    --accent: #ef7a62;
    --link: #79b3e0;
    --link-visited: #b4a4e3;
    --side: #171c19;
    --box: #202723;
    --code: #252d29;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--link); text-decoration: none; }
a:visited { color: var(--link-visited); }
a:hover { text-decoration: underline; }
.top {
  display: flex; align-items: center; gap: 16px;
  padding: 10px 24px; background: var(--paper); border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 600; font-size: 18px; }
.brand:visited { color: var(--ink); }
.brand small { display: block; font-weight: 400; font-size: 12px; color: var(--muted); line-height: 1.2; }
.brand img { width: 36px; height: 36px; }
.search { margin-left: auto; }
.search input {
  width: 260px; max-width: 40vw; padding: 6px 10px; font: inherit; font-size: 14px;
  color: var(--ink); background: var(--bg); border: 1px solid var(--line); border-radius: 4px;
}
.wrap { display: flex; max-width: 1180px; margin: 0 auto; }
nav.side { flex: 0 0 200px; padding: 20px 18px; font-size: 14px; }
nav.side h3 { margin: 18px 0 6px; font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
nav.side h3:first-child { margin-top: 0; }
nav.side ul { list-style: none; margin: 0; padding: 0; }
nav.side li { margin: 3px 0; }
nav.side a.cur { color: var(--ink); font-weight: 600; }
main {
  flex: 1; min-width: 0; background: var(--paper); border: 1px solid var(--line); border-top: 0;
  padding: 22px 32px 40px;
}
.tabs { display: flex; gap: 18px; font-size: 14px; border-bottom: 1px solid var(--line); margin: -6px 0 18px; }
.tabs span { padding: 4px 0 8px; color: var(--muted); }
.tabs span.on { color: var(--ink); border-bottom: 2px solid var(--accent); }
h1 { font: 400 30px/1.25 Georgia, "Times New Roman", serif; margin: 0 0 4px; }
.sub { color: var(--muted); font-size: 13px; margin-bottom: 18px; }
h2 { font: 400 23px/1.3 Georgia, "Times New Roman", serif; border-bottom: 1px solid var(--line); padding-bottom: 4px; margin: 30px 0 12px; }
h3 { font-size: 17px; margin: 22px 0 8px; }
p, ul, ol { margin: 0 0 12px; }
.infobox {
  float: right; width: 290px; margin: 0 0 16px 22px; background: var(--box);
  border: 1px solid var(--line); font-size: 14px;
}
.infobox caption { font-weight: 600; padding: 8px; background: var(--side); caption-side: top; }
.infobox .pic { text-align: center; padding: 10px; }
.infobox .pic img { width: 100%; max-width: 220px; height: auto; }
.infobox th, .infobox td { text-align: left; vertical-align: top; padding: 4px 8px; border-top: 1px solid var(--line); }
.infobox th { width: 42%; font-weight: 600; }
.toc { display: inline-block; background: var(--box); border: 1px solid var(--line); padding: 10px 18px; font-size: 14px; margin: 6px 0 12px; }
.toc b { display: block; text-align: center; margin-bottom: 4px; }
.toc ol { margin: 0; padding-left: 20px; }
table.wt { border-collapse: collapse; margin: 8px 0 16px; font-size: 14px; }
table.wt th, table.wt td { border: 1px solid var(--line); padding: 6px 10px; text-align: left; }
table.wt th { background: var(--side); }
.note { border-left: 4px solid var(--accent); background: var(--box); padding: 10px 14px; margin: 12px 0 16px; font-size: 15px; }
code { background: var(--code); padding: 1px 5px; border-radius: 3px; font-size: 14px; }
.cats { clear: both; margin-top: 34px; padding: 8px 12px; border: 1px solid var(--line); background: var(--box); font-size: 13px; }
.cats a { margin-right: 10px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 16px; margin: 10px 0 20px; }
.card { border: 1px solid var(--line); background: var(--box); padding: 12px 16px; }
.card h3 { margin-top: 0; }
.changes { font-size: 14px; list-style: none; padding: 0; }
.changes li { padding: 4px 0; border-bottom: 1px dotted var(--line); }
.changes .d { color: var(--muted); display: inline-block; min-width: 118px; }
footer { max-width: 1180px; margin: 0 auto; padding: 14px 24px 30px 224px; font-size: 12px; color: var(--muted); }
footer a { color: var(--muted); text-decoration: underline; }
@media (max-width: 860px) {
  .top { padding: 10px 16px; flex-wrap: wrap; }
  .search { margin-left: 0; width: 100%; }
  .search input { width: 100%; max-width: none; }
  .wrap { display: block; }
  nav.side { padding: 10px 16px; }
  nav.side ul { display: flex; flex-wrap: wrap; gap: 4px 14px; }
  main { padding: 18px 16px 30px; border-left: 0; border-right: 0; }
  .infobox { float: none; width: 100%; margin: 0 0 16px; }
  footer { padding: 14px 16px 30px; }
  table.wt { display: block; overflow-x: auto; }
}