:root {
  --bg: #fbfaf7;
  --fg: #1d1c1a;
  --muted: #6d6a64;
  --line: #e6e2da;
  --code: #f3f1ec;
  --accent: #b4441a;
  --bad: #b8322a;
  --hl-k: #a83f17;
  --hl-t: #1d6a6a;
  --hl-s: #3a7330;
  --hl-n: #6547a8;
  --hl-b: #85590a;
  --hl-c: #8e8a83;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161513;
    --fg: #e8e5df;
    --muted: #9b968e;
    --line: #2c2a27;
    --code: #1f1e1b;
    --accent: #ef8a5c;
    --bad: #e9746b;
    --hl-k: #f0956a;
    --hl-t: #6cc5c0;
    --hl-s: #9ccc7d;
    --hl-n: #b8a1f0;
    --hl-b: #e2b65c;
    --hl-c: #7d786f;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }

/* header and footer */
.bar {
  max-width: 1040px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}
.top { border-bottom: 1px solid var(--line); }
.brand {
  font: 700 18px var(--mono);
  color: var(--fg);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.top nav a {
  margin-left: 22px;
  color: var(--muted);
  font-size: 15px;
  text-decoration: none;
}
.top nav a:hover { color: var(--fg); }
.foot { border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }

/* layouts */
.page { max-width: 720px; margin: 0 auto; padding: 48px 20px 72px; }
.docs {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 56px;
}
.side {
  position: sticky;
  top: 0;
  align-self: start;
  max-height: 100vh;
  overflow-y: auto;
  padding: 28px 0 40px;
  font-size: 15px;
}
.side .group { margin: 18px 0 4px; color: var(--muted); font-size: 13px; }
.side .group:first-child { margin-top: 0; }
.side ul { list-style: none; margin: 0; padding: 0; }
.side a { display: block; padding: 3px 0; color: var(--fg); text-decoration: none; }
.side a:hover { color: var(--accent); }
.side a[aria-current] { color: var(--accent); font-weight: 600; }
.content { min-width: 0; max-width: 720px; padding: 32px 0 72px; }

/* text */
h1 { margin: 0 0 18px; font-size: 2rem; line-height: 1.2; font-weight: 650; letter-spacing: -0.015em; }
h2 { margin: 44px 0 10px; font-size: 1.3rem; line-height: 1.3; font-weight: 620; }
h3 { margin: 28px 0 8px; font-size: 1.05rem; }
p { margin: 0 0 14px; }
ul, ol { margin: 0 0 16px; padding-left: 22px; }
li { margin: 4px 0; }
strong { font-weight: 620; }
.lead { font-size: 1.2rem; line-height: 1.55; max-width: 34em; margin-bottom: 28px; }

/* code */
code, pre { font-family: var(--mono); }
:not(pre) > code {
  padding: 1px 5px;
  border-radius: 4px;
  background: var(--code);
  font-size: 0.88em;
}
pre {
  margin: 0 0 18px;
  padding: 14px 16px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--code);
  font-size: 14px;
  line-height: 1.55;
  tab-size: 4;
}
pre code { font-size: inherit; }
pre.sh { white-space: pre-wrap; overflow-wrap: anywhere; }
pre.output { background: transparent; color: var(--muted); }
pre.code:has(+ pre.output) { margin-bottom: 0; border-bottom-left-radius: 0; border-bottom-right-radius: 0; }
pre.code + pre.output { border-top: 1px dashed var(--line); border-top-left-radius: 0; border-top-right-radius: 0; }
pre.bad { border-left: 3px solid var(--bad); }
.bad-note { margin: -10px 0 18px; color: var(--bad); font-size: 14px; }

.k { color: var(--hl-k); }
.t { color: var(--hl-t); }
.s { color: var(--hl-s); }
.n { color: var(--hl-n); }
.b { color: var(--hl-b); }
.i { color: var(--hl-k); }
.c { color: var(--hl-c); font-style: italic; }
.p { color: var(--muted); user-select: none; }
.o { color: var(--muted); }

/* tables */
table { width: 100%; margin: 0 0 20px; border-collapse: collapse; font-size: 15px; }
th, td { padding: 8px 14px 8px 0; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--muted); font-size: 14px; font-weight: 600; }
td code { overflow-wrap: anywhere; }

/* home */
.is-index h1 { font-size: 2.4rem; }
.is-index .page ul { list-style: none; padding: 0; border-top: 1px solid var(--line); }
.is-index .page li { margin: 0; padding: 12px 0; border-bottom: 1px solid var(--line); }

/* contents fold-out on phones */
.toc { display: none; margin: 0 -20px; padding: 0 20px; border-bottom: 1px solid var(--line); font-size: 15px; }
.toc summary { padding: 12px 0; color: var(--muted); cursor: pointer; }
.toc[open] { padding-bottom: 12px; }
.toc .group { margin: 10px 0 2px; color: var(--muted); font-size: 13px; }
.toc ul { display: flex; flex-wrap: wrap; gap: 0 16px; margin: 0; padding: 0; list-style: none; }
.toc a { display: block; padding: 3px 0; color: var(--fg); text-decoration: none; }
.toc a[aria-current] { color: var(--accent); font-weight: 600; }

/* previous / next */
.pn {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 56px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.pn a { text-decoration: none; }

@media (max-width: 760px) {
  .docs { display: block; }
  .side { display: none; }
  .toc { display: block; }
  .content { padding-top: 24px; }
  .page { padding-top: 32px; }
  h1, .is-index h1 { font-size: 1.75rem; }
  .top nav a { margin-left: 16px; }
  pre { font-size: 13px; }
}