/* OxL documentation site: one stylesheet for screen, dark mode, small screens and print. No external resources. */
:root {
  --bg: #ffffff; --bg-soft: #f6f8fa; --bg-side: #fbfcfd; --bg-code: #f6f8fa; --bg-hover: #eef2f6;
  --fg: #1f2328; --fg-soft: #57606a; --fg-faint: #8b949e;
  --line: #d8dee4; --line-soft: #e8ecf0;
  --accent: #0a62c9; --accent-soft: #e6f0fc; --accent-fg: #ffffff;
  --ok: #1a7f37; --warn: #9a6700; --err: #cf222e;
  --sig-bg: #f1f5fb; --sig-bar: #0a62c9;
  --note-bg: #fff8e5; --note-bar: #d4a72c;
  --shadow: 0 8px 28px rgba(31, 35, 40, .16);
  --tk-kw: #cf222e; --tk-type: #0550ae; --tk-fn: #8250df; --tk-call: #6639ba; --tk-string: #0a3069; --tk-number: #0550ae;
  --tk-comment: #6e7781; --tk-doc: #57606a; --tk-attr: #953800; --tk-const: #0550ae; --tk-op: #cf222e; --tk-effect: #1a7f37; --tk-prefix: #953800; --tk-interp: #116329;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif;
  --top: 52px; --side-w: 288px; --toc-w: 232px;
}
:root[data-theme="dark"] {
  --bg: #0f1318; --bg-soft: #151b22; --bg-side: #12171d; --bg-code: #151b22; --bg-hover: #1b2330;
  --fg: #e6edf3; --fg-soft: #9da7b3; --fg-faint: #6e7681;
  --line: #2b3440; --line-soft: #1f2832;
  --accent: #58a6ff; --accent-soft: #14263d; --accent-fg: #0b1220;
  --ok: #3fb950; --warn: #d29922; --err: #ff7b72;
  --sig-bg: #131c28; --sig-bar: #58a6ff;
  --note-bg: #2a2410; --note-bar: #9e7a14;
  --shadow: 0 8px 28px rgba(0, 0, 0, .55);
  --tk-kw: #ff7b72; --tk-type: #79c0ff; --tk-fn: #d2a8ff; --tk-call: #d2a8ff; --tk-string: #a5d6ff; --tk-number: #79c0ff;
  --tk-comment: #8b949e; --tk-doc: #9da7b3; --tk-attr: #ffa657; --tk-const: #79c0ff; --tk-op: #ff7b72; --tk-effect: #7ee787; --tk-prefix: #ffa657; --tk-interp: #7ee787;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1318; --bg-soft: #151b22; --bg-side: #12171d; --bg-code: #151b22; --bg-hover: #1b2330;
    --fg: #e6edf3; --fg-soft: #9da7b3; --fg-faint: #6e7681;
    --line: #2b3440; --line-soft: #1f2832;
    --accent: #58a6ff; --accent-soft: #14263d; --accent-fg: #0b1220;
    --ok: #3fb950; --warn: #d29922; --err: #ff7b72;
    --sig-bg: #131c28; --sig-bar: #58a6ff;
    --note-bg: #2a2410; --note-bar: #9e7a14;
    --shadow: 0 8px 28px rgba(0, 0, 0, .55);
    --tk-kw: #ff7b72; --tk-type: #79c0ff; --tk-fn: #d2a8ff; --tk-call: #d2a8ff; --tk-string: #a5d6ff; --tk-number: #79c0ff;
    --tk-comment: #8b949e; --tk-doc: #9da7b3; --tk-attr: #ffa657; --tk-const: #79c0ff; --tk-op: #ff7b72; --tk-effect: #7ee787; --tk-prefix: #ffa657; --tk-interp: #7ee787;
  }
}

* { box-sizing: border-box; }
html { scroll-padding-top: calc(var(--top) + 14px); -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 15px/1.6 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 2px; }
code, pre, kbd { font-family: var(--mono); font-size: .88em; font-variant-ligatures: none; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 0; background: var(--accent); color: var(--accent-fg); padding: .5rem 1rem; z-index: 100; }
.skip:focus { left: 8px; top: 8px; }
.muted { color: var(--fg-soft); }
.nw { white-space: nowrap; }

/* ---------------------------------------------------------------- header */
.top { position: sticky; top: 0; z-index: 40; height: var(--top); display: flex; align-items: center; gap: 12px; padding: 0 16px;
  background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 9px; color: var(--fg); font-weight: 650; letter-spacing: -.01em; flex: none; }
.brand:hover { text-decoration: none; }
.logo { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 8px; color: #fff; font: 700 14px var(--mono);
  background: linear-gradient(135deg, #0a62c9, #7a3ff0); box-shadow: inset 0 0 0 1px rgba(255,255,255,.18); }
.brand-s { color: var(--fg-soft); font-weight: 450; }
.menu-btn { display: none; background: none; border: 0; color: var(--fg); padding: 6px; border-radius: 6px; cursor: pointer; }
.search { position: relative; flex: 1 1 auto; max-width: 560px; margin: 0 auto 0 12px; }
.search input { width: 100%; height: 34px; padding: 0 12px 0 34px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238b949e' stroke-width='2.4' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='M20 20l-3.5-3.5'/%3E%3C/svg%3E") 10px 50% no-repeat;
  color: var(--fg); font: inherit; font-size: 14px; outline: none; }
.search input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent); background-color: var(--bg); }
.results { position: absolute; left: 0; right: 0; top: 40px; max-height: min(70vh, 560px); overflow: auto; background: var(--bg); border: 1px solid var(--line);
  border-radius: 10px; box-shadow: var(--shadow); padding: 4px; z-index: 50; }
.results a { display: block; padding: 7px 10px; border-radius: 6px; color: var(--fg); }
.results a:hover, .results a.sel { background: var(--accent-soft); text-decoration: none; }
.results .r-t { font-weight: 600; font-size: 14px; }
.results .r-t mark, .hits mark { background: color-mix(in srgb, var(--warn) 30%, transparent); color: inherit; border-radius: 2px; }
.results .r-s { font-size: 12.5px; color: var(--fg-soft); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.results .r-k { float: right; font-size: 11px; color: var(--fg-faint); text-transform: uppercase; letter-spacing: .04em; margin-left: 8px; }
.results .none { padding: 12px; color: var(--fg-soft); }
.tools { display: flex; align-items: center; gap: 6px; flex: none; }
.sel select { height: 30px; border: 1px solid var(--line); background: var(--bg-soft); color: var(--fg); border-radius: 7px; padding: 0 6px; font: inherit; font-size: 13px; }
.langs { display: flex; gap: 2px; align-items: center; font-size: 13px; border: 1px solid var(--line); border-radius: 7px; padding: 0 2px; height: 30px; background: var(--bg-soft); }
.langs .lang-cur { padding: 2px 7px; border-radius: 5px; background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.langs .lang-opt { padding: 2px 7px; color: var(--fg-soft); border-radius: 5px; }
.langs .lang-opt:hover { background: var(--bg-hover); text-decoration: none; }
.hbtn { display: inline-flex; align-items: center; justify-content: center; height: 30px; min-width: 30px; padding: 0 9px; border: 1px solid var(--line);
  background: var(--bg-soft); color: var(--fg); border-radius: 7px; font: 600 12px var(--sans); cursor: pointer; }
.hbtn:hover { background: var(--bg-hover); text-decoration: none; }
.theme-btn .i-moon { display: none; }
:root[data-theme="dark"] .theme-btn .i-sun { display: none; }
:root[data-theme="dark"] .theme-btn .i-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-btn .i-sun { display: none; }
  :root:not([data-theme="light"]) .theme-btn .i-moon { display: block; }
}

/* ---------------------------------------------------------------- layout */
.layout { display: grid; grid-template-columns: var(--side-w) minmax(0, 1fr) var(--toc-w); max-width: 1640px; margin: 0 auto; }
.side { position: sticky; top: var(--top); height: calc(100vh - var(--top)); overflow-y: auto; padding: 14px 8px 40px 14px; border-right: 1px solid var(--line-soft);
  background: var(--bg-side); font-size: 13.5px; scrollbar-width: thin; }
.side ul { list-style: none; margin: 0; padding: 0; }
.side ul ul { margin: 2px 0 6px 11px; padding-left: 8px; border-left: 1px solid var(--line); }
.side li > a { display: flex; align-items: baseline; gap: 6px; padding: 3px 8px; border-radius: 6px; color: var(--fg-soft); line-height: 1.4; }
.side li > a:hover { background: var(--bg-hover); color: var(--fg); text-decoration: none; }
.nav-root > li > a { font-weight: 650; color: var(--fg); padding: 5px 8px; margin-top: 3px; }
.side li.anc > a { color: var(--fg); font-weight: 600; }
.side li.cur > a { background: var(--accent-soft); color: var(--accent); font-weight: 650; }
.side .nb { font: 600 9.5px/1 var(--mono); color: var(--fg-faint); border: 1px solid var(--line); border-radius: 4px; padding: 2px 3px; flex: none; text-transform: lowercase; }
main { min-width: 0; padding: 22px 40px 40px; }
.doc { max-width: 880px; }
.toc { position: sticky; top: var(--top); align-self: start; height: calc(100vh - var(--top)); overflow-y: auto; padding: 24px 14px 24px 8px; font-size: 13px; }
.toc-h { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--fg-faint); font-weight: 650; margin-bottom: 6px; }
.toc ul { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--line); }
.toc li a { display: block; padding: 2px 10px; color: var(--fg-soft); line-height: 1.4; border-left: 2px solid transparent; margin-left: -1px; }
.toc li a:hover { color: var(--fg); text-decoration: none; }
.toc li a.on { color: var(--accent); border-left-color: var(--accent); }
.toc li.l3 a { padding-left: 22px; } .toc li.l4 a { padding-left: 34px; }
.foot { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-top: 56px; padding-top: 14px; border-top: 1px solid var(--line-soft); color: var(--fg-faint); font-size: 12.5px; max-width: 880px; }

/* ---------------------------------------------------------------- content */
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 0; margin: 0 0 6px; padding: 0; font-size: 13px; color: var(--fg-soft); }
.crumbs li + li::before { content: "›"; margin: 0 7px; color: var(--fg-faint); }
.crumbs a { color: var(--fg-soft); } .crumbs a:hover { color: var(--accent); }
.page-title { font-size: 1.9rem; line-height: 1.2; letter-spacing: -.02em; margin: .2em 0 .7em; font-weight: 700; }
.doc h2 { font-size: 1.28rem; margin: 1.9em 0 .55em; padding-bottom: .25em; border-bottom: 1px solid var(--line-soft); letter-spacing: -.01em; }
.doc h3 { font-size: 1.08rem; margin: 1.5em 0 .4em; }
.doc h4 { font-size: .98rem; margin: 1.3em 0 .3em; }
.doc h1:not(.page-title) { font-size: 1.5rem; margin: 1.8em 0 .5em; }
.doc :is(h2,h3,h4,h5,h6) .anchor { margin-left: .4em; color: var(--fg-faint); opacity: 0; font-weight: 400; text-decoration: none; }
.doc :is(h2,h3,h4,h5,h6):hover .anchor, .anchor:focus { opacity: 1; }
.doc p { margin: .7em 0; } .doc ul, .doc ol { padding-left: 1.5em; margin: .6em 0; } .doc li { margin: .22em 0; }
.doc li > p { margin: .3em 0; }
.doc img { max-width: 100%; height: auto; border-radius: 6px; }
.doc hr { border: 0; border-top: 1px solid var(--line); margin: 2em 0; }
.doc :not(pre) > code { background: var(--bg-code); border: 1px solid var(--line-soft); padding: .08em .35em; border-radius: 5px; font-size: .86em; }
.doc a code { color: inherit; }
.doc blockquote { margin: 1em 0; padding: .4em 1em; border-left: 3px solid var(--note-bar); background: var(--note-bg); border-radius: 0 8px 8px 0; }
.doc blockquote p { margin: .4em 0; }
.doc .lead, .lead { font-size: 1.08rem; color: var(--fg-soft); }
kbd { background: var(--bg-soft); border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 4px; padding: 0 .35em; font-size: .85em; }
.xref { white-space: nowrap; }
.fallback { margin: 6px 0 14px; padding: 8px 12px; border-radius: 8px; background: var(--note-bg); border-left: 3px solid var(--note-bar); font-size: 13.5px; }
.srcline { color: var(--fg-faint); font-size: 12.5px; margin-top: 2em; }

/* tables: dense, like a reference */
.table-wrap { overflow-x: auto; margin: .9em 0; border: 1px solid var(--line); border-radius: 8px; }
.table-wrap table { margin: 0; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { text-align: left; vertical-align: top; padding: 6px 12px; border-bottom: 1px solid var(--line-soft); }
th { background: var(--bg-soft); font-weight: 650; font-size: 12.5px; color: var(--fg-soft); text-transform: none; border-bottom: 1px solid var(--line); }
tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: color-mix(in srgb, var(--bg-hover) 55%, transparent); }
table.listing td:first-child { width: 1%; }
table.params td:first-child { white-space: nowrap; }
td code.inl { background: none; border: 0; padding: 0; color: var(--fg-soft); font-size: .82em; overflow-wrap: break-word; word-break: normal; }
.members td:first-child { white-space: normal; width: 46%; }

/* code */
.code { position: relative; margin: 1em 0; border: 1px solid var(--line); border-radius: 9px; background: var(--bg-code); overflow: hidden; }
.code-bar { display: flex; align-items: center; gap: 8px; padding: 3px 6px 3px 12px; border-bottom: 1px solid var(--line-soft); font: 600 11px var(--mono); color: var(--fg-faint);
  text-transform: lowercase; letter-spacing: .02em; background: color-mix(in srgb, var(--bg-soft) 70%, transparent); }
.code-lang { flex: 1; }
.code-badge { font: 600 10.5px var(--sans); color: var(--ok); text-transform: none; letter-spacing: 0; }
.copy { font: 600 11px var(--sans); background: transparent; color: var(--fg-soft); border: 1px solid transparent; border-radius: 5px; padding: 2px 8px; cursor: pointer; }
.copy:hover { border-color: var(--line); color: var(--fg); background: var(--bg); }
.copy.done { color: var(--ok); }
pre { margin: 0; overflow: auto; }
.code pre { padding: 11px 14px; line-height: 1.5; font-size: 13.2px; tab-size: 2; }
.code pre code { font-size: inherit; background: none; border: 0; padding: 0; }
.code-out { border-top: 1px dashed var(--line); background: var(--bg); }
.code-out-h { font: 600 10.5px var(--sans); text-transform: uppercase; letter-spacing: .06em; color: var(--fg-faint); padding: 5px 14px 0; }
.code-out pre { padding-top: 3px; color: var(--fg-soft); }
.sig { margin: .9em 0; border: 1px solid var(--line); border-left: 4px solid var(--sig-bar); border-radius: 8px; background: var(--sig-bg); }
.sig pre { padding: 10px 14px; font-size: 13.5px; line-height: 1.55; white-space: pre-wrap; overflow-wrap: break-word; word-break: normal; }
/* tokens (`->`, `=>`, `?.`, names) are never split: a line breaks at spaces only; a token longer than the line breaks as a last resort */
.sig pre [class^="tk-"] { white-space: nowrap; }
.sig pre .tk-interp, .sig pre .tk-string { white-space: pre-wrap; }
.sig code { background: none; border: 0; padding: 0; }
.meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: -.2em 0 .6em; font-size: 13.5px; }
.kb { display: inline-block; font: 600 11px/1.4 var(--sans); text-transform: lowercase; letter-spacing: .03em; padding: 1px 8px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); vertical-align: .18em; }
.page-title .kb { font-size: 12px; margin-right: 6px; }
.kb-error, .lvl-error { background: color-mix(in srgb, var(--err) 14%, transparent); color: var(--err); }
.kb-warning, .lvl-warning, .lvl-warn { background: color-mix(in srgb, var(--warn) 16%, transparent); color: var(--warn); }
.lvl-note, .lvl-info { background: var(--bg-soft); color: var(--fg-soft); }
.tlink { color: var(--tk-type); }
.note { padding: 8px 12px; border-left: 3px solid var(--note-bar); background: var(--note-bg); border-radius: 0 8px 8px 0; }
.seealso ul { columns: 2; column-gap: 28px; }
.seealso li { break-inside: avoid; }
.pn { display: flex; justify-content: space-between; gap: 12px; margin-top: 2.5em; }
.pn a { display: block; max-width: 48%; padding: 9px 14px; border: 1px solid var(--line); border-radius: 9px; color: var(--fg); }
.pn a span { display: block; font-size: 11.5px; color: var(--fg-faint); text-transform: uppercase; letter-spacing: .05em; }
.pn a:hover { border-color: var(--accent); text-decoration: none; }
.pn .next { text-align: right; margin-left: auto; }

/* syntax tokens */
.tk-kw { color: var(--tk-kw); } .tk-type { color: var(--tk-type); } .tk-fn { color: var(--tk-fn); font-weight: 600; } .tk-call { color: var(--tk-call); }
.tk-string { color: var(--tk-string); } .tk-number { color: var(--tk-number); } .tk-comment { color: var(--tk-comment); font-style: italic; }
.tk-doc { color: var(--tk-doc); font-style: italic; } .tk-attr { color: var(--tk-attr); } .tk-const { color: var(--tk-const); } .tk-op { color: var(--tk-op); }
.tk-effect { color: var(--tk-effect); font-weight: 600; } .tk-prefix { color: var(--tk-prefix); } .tk-interp { color: var(--tk-interp); }

/* home */
.hero { padding: 26px 0 8px; } .hero h1 { font-size: 2.5rem; letter-spacing: -.03em; margin: 0 0 .25em; line-height: 1.1;
  background: linear-gradient(90deg, var(--accent), #8b5cf6); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lead { font-size: 1.15rem; max-width: 46em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0 8px; }
.btn { display: inline-block; padding: 8px 16px; border-radius: 9px; border: 1px solid var(--line); color: var(--fg); font-weight: 600; background: var(--bg-soft); }
.btn:hover { text-decoration: none; border-color: var(--accent); }
.btn.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 14px; margin: 26px 0; max-width: 980px; }
.card { display: block; padding: 14px 16px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg-soft); color: var(--fg); transition: border-color .15s, transform .15s; }
.card:hover { border-color: var(--accent); text-decoration: none; transform: translateY(-1px); }
.card h2 { margin: 0 0 4px; padding: 0; border: 0; font-size: 1.05rem; } .card p { margin: 0; color: var(--fg-soft); font-size: 13.5px; }
.az { display: flex; flex-wrap: wrap; gap: 4px; margin: 8px 0 14px; }
.az a { padding: 1px 8px; border: 1px solid var(--line); border-radius: 6px; font-weight: 600; font-size: 13px; }
.az-list { columns: 2 280px; column-gap: 32px; list-style: none; padding-left: 0 !important; }
.az-list li { break-inside: avoid; font-size: 14px; }
.hits { list-style: none; padding: 0 !important; } .hits li { padding: 10px 0; border-bottom: 1px solid var(--line-soft); }
.hits .h-t { font-weight: 650; font-size: 16px; } .hits .h-s { color: var(--fg-soft); font-size: 13.5px; } .hits .h-p { color: var(--fg-faint); font-size: 12px; }
.scrim { display: none; }

/* ---------------------------------------------------------------- narrower screens */
@media (max-width: 1260px) { .layout { grid-template-columns: var(--side-w) minmax(0, 1fr); } .toc { display: none; } }
@media (max-width: 860px) {
  :root { --top: 52px; }
  .menu-btn { display: inline-flex; }
  .layout { display: block; }
  .side { position: fixed; z-index: 45; left: 0; top: var(--top); bottom: 0; width: min(86vw, 330px); height: auto; transform: translateX(-102%); transition: transform .2s; box-shadow: var(--shadow); }
  body.nav-open .side { transform: none; }
  body.nav-open .scrim { display: block; position: fixed; inset: var(--top) 0 0 0; z-index: 44; background: rgba(0,0,0,.4); }
  main { padding: 16px 16px 32px; }
  .page-title { font-size: 1.55rem; }
  .brand-s { display: none; }
  .search { margin-left: 0; }
  .tools .sel, .tools .langs .lang-opt { display: none; }
  .tools .langs { padding: 0; border: 0; background: none; }
  .tools .langs .lang-cur { display: none; }
  .langs:has(.lang-opt) .lang-opt { display: inline-block; }
  .seealso ul { columns: 1; }
  .hero h1 { font-size: 1.9rem; }
  .top { gap: 8px; padding: 0 10px; }
}
@media (max-width: 520px) { .tools .hbtn:not(.theme-btn) { display: none; } .tools .langs .lang-opt { display: inline-block; padding: 2px 6px; font-size: 12px; } }

/* ---------------------------------------------------------------- print and the PDF book */
@media print {
  .top, .side, .toc, .scrim, .pn, .copy, .skip, .foot, .anchor, .crumbs { display: none !important; }
  .layout { display: block; } main { padding: 0; } .doc { max-width: none; }
  :root, :root[data-theme="dark"] { --bg: #fff; --bg-soft: #f6f8fa; --bg-code: #f6f8fa; --fg: #111; --fg-soft: #444; --line: #ccc; --line-soft: #ddd; --sig-bg: #f1f5fb; --note-bg: #fff8e5;
    --tk-kw: #cf222e; --tk-type: #0550ae; --tk-fn: #8250df; --tk-call: #6639ba; --tk-string: #0a3069; --tk-number: #0550ae; --tk-comment: #6e7781; --tk-doc: #57606a; --tk-attr: #953800; --tk-const: #0550ae; --tk-op: #cf222e; --tk-effect: #1a7f37; --tk-interp: #116329; --accent: #0a62c9; }
  body { font-size: 10pt; line-height: 1.45; background: #fff; color: #111; }
  .code, .sig, .table-wrap, table, blockquote { break-inside: avoid; }
  .code pre { white-space: pre-wrap; overflow-wrap: anywhere; font-size: 8.4pt; }
  a { color: inherit; }
  .table-wrap { overflow: visible; }
}
.book .chapter { break-before: page; }
.book .chapter > h1.ch-title { font-size: 24pt; margin: 0 0 .6em; padding-bottom: .2em; border-bottom: 2px solid var(--accent); }
.book .page-sec { margin-top: 1.6em; }
.book .page-sec > h2.pg-title { font-size: 15pt; margin: 1.6em 0 .5em; border-bottom: 1px solid var(--line); padding-bottom: .15em; }
.book .page-sec .src-note { color: var(--fg-faint); font-size: 8.5pt; }
.book .cover { min-height: 90vh; display: flex; flex-direction: column; justify-content: center; }
.book .cover h1 { font-size: 38pt; margin: 0; letter-spacing: -.02em; }
.book .cover p { font-size: 14pt; color: var(--fg-soft); }
.book .toc-page ul { list-style: none; padding-left: 1.2em; } .book .toc-page > ul { padding-left: 0; }
.book .toc-page li { margin: .15em 0; }
.book .toc-page a::after { content: leader('.') target-counter(attr(href), page); }
.book h1, .book h2, .book h3 { break-after: avoid; }
.repo-ref { border-bottom: 1px dotted var(--fg-faint); cursor: help; }