/* Chapter furniture extends the approved reading-room design. */
.header-links { display: flex; align-items: center; gap: 1.6rem; }
.search-link { color: var(--ink); font-size: .8rem; text-decoration: none; }
.search-link span { margin-left: .5rem; color: var(--link); }
.search-link:hover { text-decoration: underline; }
.sidebar { align-self: start; position: sticky; top: 0; max-height: 100vh; overflow-y: auto; padding: 2rem 1.5rem 2rem 3rem; border-right: 1px solid var(--rule); scrollbar-width: thin; }
.sidebar nav { display: block; padding: 0; border: 0; }
.sidebar nav > a { align-items: baseline; font-size: .79rem; padding-block: .4rem; gap: .65rem; }
.sidebar nav > a > span { flex: 0 0 1.1rem; }
.sidebar nav .eyebrow { display: block; margin: 1.7rem 0 .55rem; padding-bottom: .4rem; font-size: .59rem; }
.sidebar nav > a[aria-current="page"] { background: var(--fluoro); box-shadow: inset 3px 0 var(--ink); font-weight: 650; }
.chapter-menu > summary { display: none; }
.guide-edition { margin: 2rem 0 0; font: .66rem/1.9 var(--mono); color: var(--muted); }
.sidenote { margin-top: 2rem; }
.contents h3 a { color: inherit; text-decoration: none; }
.contents h3 a:hover { color: var(--link); text-decoration: underline; }
.chapter-list { list-style: none; padding: 0; margin: 1.4rem 0 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 2rem; }
.chapter-list li { border-bottom: 1px solid var(--rule); }
.chapter-list a { display: grid; grid-template-columns: 1.5rem 1fr auto; align-items: baseline; gap: .5rem; padding: .85rem 0; text-decoration: none; color: var(--ink); font-size: .86rem; }
.chapter-list a:hover { color: var(--link); }
.chapter-list a > span { color: var(--link); font: .66rem var(--mono); }
.manual-page header { max-width: 1480px; }
.manual-page .layout { max-width: 1480px; grid-template-columns: 250px minmax(0, 1fr) 220px; }
.manual-page main { padding: 2.8rem 3rem 1.7rem; }
.manual-content { overflow-wrap: anywhere; line-height: 1.8; }
.chapter-heading { border-bottom: 2px solid var(--ink); padding-bottom: 1.5rem; margin-bottom: 2rem; }
.chapter-heading h1, .utility-title { font-size: clamp(2.2rem, 3.8vw, 3.2rem); line-height: 1.08; letter-spacing: -.04em; margin-bottom: 1.3rem; }
.chapter-heading .number { line-height: 1.65; }
.chapter-meta { margin: 0; font: .65rem/1.8 var(--mono); color: var(--muted); }
.manual-content h2 { margin: 3rem 0 1.1rem; padding-top: 1.2rem; border-top: 1px solid var(--rule); font-size: 1.85rem; line-height: 1.25; }
.manual-content h3 { font-size: 1.4rem; margin: 2.2rem 0 1rem; line-height: 1.3; }
.manual-content h4 { font-size: 1rem; margin: 1.8rem 0 .6rem; }
.manual-content :is(h1, h2, h3, h4) { scroll-margin-top: 1.5rem; }
.manual-content p, .manual-content ul, .manual-content ol { margin-block: 1rem; }
.manual-content li { margin-block: .4rem; }
.manual-content li > p { margin-block: .5rem; }
.manual-content ul, .manual-content ol { padding-left: 1.4rem; }
.section-number { font: .63rem var(--mono); color: var(--link); vertical-align: middle; margin-right: .45rem; white-space: nowrap; }
.heading-anchor { color: var(--link); font: .8rem var(--mono); text-decoration: none; opacity: 0; }
:is(h2, h3, h4):hover .heading-anchor, .heading-anchor:focus { opacity: 1; }
code { font-family: var(--mono); font-size: .84em; }
.manual-content :not(pre) > code { background: #eaf0ef; padding: .1em .25em; border-radius: 2px; }
.code-example { position: relative; margin: 1.6rem 0; border: 1px solid var(--rule); border-left: 3px solid var(--blue); background: #f1f3f1; }
.code-example pre { overflow-x: auto; margin: 0; padding: 3rem 1.2rem 1.2rem; line-height: 1.65; tab-size: 2; }
.code-example pre code { font-size: .79rem; background: none; }
.copy-code { position: absolute; top: .5rem; right: .6rem; padding: .25rem .65rem; border: 1px solid #9ba6af; background: var(--paper); color: var(--ink); font: .65rem/1.5 var(--mono); cursor: pointer; }
.copy-code:hover { background: var(--fluoro); }
button:focus-visible, summary:focus-visible, [tabindex="0"]:focus-visible { outline: 3px solid var(--link); outline-offset: 3px; }
.table-scroll { overflow-x: auto; margin: 1.6rem 0 2rem; border-top: 2px solid var(--ink); scrollbar-width: thin; }
table { width: 100%; min-width: 36rem; border-collapse: collapse; overflow-wrap: normal; font-size: .84rem; line-height: 1.65; }
th, td { text-align: left; vertical-align: top; padding: .85rem .9rem; border-bottom: 1px solid var(--rule); }
th { background: #e7f3ec; font-weight: 650; }
tr:nth-child(even) td { background: #f1f3ef; }
td p, th p { margin: 0 !important; }
td code { overflow-wrap: normal; }
.guide-notice { border-left: 3px solid var(--blue); background: #eaf4f5; padding: .7rem 1rem; margin-bottom: 2rem; font-size: .82rem; }
.guide-notice p { margin: .3rem 0; }
.on-page { position: sticky; top: 0; align-self: start; max-height: 100vh; overflow-y: auto; padding: 3rem 1.5rem 2rem 0; scrollbar-width: thin; }
.on-page nav { border: 0; padding: 0; display: block; }
.on-page .eyebrow { margin-top: 0; }
.on-page nav > a { display: block; margin: 0; padding: .35rem 0; font-size: .71rem; line-height: 1.5; color: var(--muted); }
.on-page nav > a:hover { background: none; box-shadow: none; color: var(--link); text-decoration: underline; }
.on-page nav > a > span { font-size: .6rem; }
.on-page nav > a.toc-level-3 { padding-left: .8rem; font-size: .67rem; }
.on-page nav > a.back-top { margin-top: 1rem; border-top: 1px solid var(--rule); padding-top: .8rem; }
.mobile-toc { display: none; }
.chapter-pager { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; margin: 3rem 0 2rem; padding: 1.2rem 0 0; border: 0; border-top: 2px solid var(--ink); }
.chapter-pager > a { display: block; margin: 0; padding: .5rem 0; font-family: Georgia, serif; font-size: 1.08rem; }
.chapter-pager > a > span { display: block; font: .6rem/1.7 var(--mono); margin-bottom: .3rem; }
.chapter-pager > a:hover { background: none; box-shadow: none; text-decoration: underline; }
.chapter-pager .next { text-align: right; }
#search { margin: 2rem 0; min-height: 300px; --pagefind-ui-primary: var(--link); --pagefind-ui-text: var(--ink); --pagefind-ui-background: var(--paper); --pagefind-ui-border: var(--rule); --pagefind-ui-border-radius: 0; --pagefind-ui-font: 'Avenir Next', Avenir, system-ui, sans-serif; }
@media (max-width: 1200px) {
  .manual-page .layout { grid-template-columns: 230px minmax(0, 1fr); }
  .on-page { display: none; }
  .manual-page main { padding-inline: 2.5rem; }
  .mobile-toc { display: block; border: 1px solid var(--rule); padding: .7rem 1rem; margin: 1.5rem 0 2rem; font-size: .82rem; }
  summary { cursor: pointer; }
  .mobile-toc summary { font-weight: 650; }
}
@media (max-width: 1100px) {
  .sidebar { padding-left: 2rem; padding-right: 1.3rem; }
  .header-links { gap: 1rem; }
}
@media (max-width: 800px) {
  .layout, .manual-page .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; max-height: none; padding: .8rem 1.5rem; border-right: 0; border-bottom: 1px solid var(--rule); }
  .chapter-menu > summary { display: list-item; font: .76rem/1.8 var(--mono); }
  .sidebar nav { padding-top: 1rem; }
  .sidebar nav > a { font-size: .85rem; }
  .sidebar nav > a > span { font-size: .65rem; }
  .guide-edition { margin-bottom: 1rem; }
  .manual-page main { padding: 2rem 1.5rem 1.5rem; }
  .header-links { flex-direction: column; align-items: flex-end; gap: .4rem; }
  .search-link { font-size: .73rem; white-space: nowrap; }
  .search-link span { margin-left: .15rem; }
  .chapter-list { gap: 0 1rem; }
}
@media (max-width: 540px) {
  .chapter-list { grid-template-columns: 1fr; }
  .manual-content { font-size: .94rem; }
  .manual-content h2 { font-size: 1.65rem; }
  .manual-content h3 { font-size: 1.3rem; }
  .chapter-meta { font-size: .6rem; }
  .chapter-pager { gap: 1rem; }
  .chapter-pager > a { font-size: .95rem; }
  .code-example pre { padding-inline: .8rem; }
  .header-links .home-link { display: none; }
}
@media print {
  .sidebar, .on-page, .header-links, .chapter-pager, .mobile-toc, .copy-code, .heading-anchor { display: none !important; }
  .manual-page .layout { display: block; }
  .manual-page main { padding: 1rem 0; }
  .code-example pre { padding: 1rem; white-space: pre-wrap; overflow-wrap: anywhere; }
  .table-scroll { overflow: visible; }
  table { min-width: 0; }
  .chapter-heading { break-after: avoid; }
  h2, h3, h4 { break-after: avoid; }
}