/* Docs: terse reference pages */
.docs { display: grid; grid-template-columns: 232px minmax(0, 1fr); gap: 56px; }
.toc {
  position: sticky; top: 64px; align-self: start; max-height: calc(100vh - 64px); overflow-y: auto;
  font-size: 0.875rem; padding: 24px 12px 40px 0; border-right: 1px solid var(--line); margin-left: -8px;
  scrollbar-width: thin;
}
.toc summary { display: none; }
.toc a { display: block; text-decoration: none; color: var(--muted); padding: 6px 10px; border-radius: var(--r-sm); line-height: 1.3; }
.toc a:hover { color: var(--ink); background: var(--hover); }
.toc a[aria-current="page"] { color: var(--ink); background: var(--hover); font-weight: 500; }
.toc-h { margin: 22px 0 4px; padding-left: 10px; font: 400 0.8125rem var(--sans); color: var(--faint); }
.toc-h:first-of-type { margin-top: 0; }

.doc { max-width: 72ch; min-width: 0; padding: 40px 0 80px; }
.file-label { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-bottom: 20px; font-size: 0.8125rem; color: var(--muted); }
.file-label span { font-family: var(--mono); font-size: 0.75rem; }
.file-label a { margin-left: auto; text-decoration: none; border: 1px solid var(--line-strong); border-radius: var(--r-pill); padding: 4px 11px; background: var(--surface); }
.file-label a:hover { color: var(--ink); background: var(--hover); }
.doc h1 { font-size: clamp(2rem, 4.2vw, 2.75rem); letter-spacing: -0.045em; margin-bottom: 20px; }
.doc h2 { font-size: 1.5rem; letter-spacing: -0.035em; margin: 48px 0 14px; padding-top: 28px; border-top: 1px solid var(--line); }
.doc h3 { font-size: 1.125rem; letter-spacing: -0.02em; margin: 32px 0 10px; }
.doc > p, .doc li { color: color-mix(in srgb, var(--ink) 86%, var(--paper)); line-height: 1.7; }
.doc h1 + p { font-size: 1.125rem; color: var(--muted); }
.doc ul, .doc ol { padding-left: 1.2em; margin: 0 0 1.5em; }
.doc li { margin-bottom: 6px; }
.doc li::marker { color: var(--faint); }

.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 56px; }
.pager a {
  display: flex; flex-direction: column; gap: 4px; padding: 16px 18px; text-decoration: none; font-weight: 500;
  border: 1px solid var(--line); border-radius: var(--r-md); background: var(--surface); transition: border-color .15s;
}
.pager a:hover { border-color: var(--line-strong); }
.pager .pager-next { text-align: right; grid-column: 2; }
.pager .label { font-weight: 400; }

@media (max-width: 860px) {
  .docs { grid-template-columns: 1fr; gap: 0; }
  .toc { position: static; max-height: none; border-right: 0; margin: 16px 0 0; padding: 0; }
  .toc summary { display: flex; align-items: center; justify-content: space-between; cursor: pointer; font-weight: 500; color: var(--ink); padding: 12px 0; list-style: none; }
  .toc summary::after { content: "+"; color: var(--muted); font-size: 1.125rem; }
  .toc details[open] summary::after { content: "−"; }
  .toc details { border: 1px solid var(--line); border-radius: var(--r-md); padding: 0 14px 6px; background: var(--surface); }
  .toc details[open] { padding-bottom: 14px; }
  .doc { padding-top: 28px; }
}

/* CSS-only tabs from `::: tabs` blocks */
.md-tabs { margin: 0 0 1.5em; }
.md-tabs > input { position: absolute; opacity: 0; pointer-events: none; }
.md-tabs > label { display: inline-block; font: 500 0.875rem var(--sans); color: var(--muted); padding: 8px 12px; border-bottom: 2px solid transparent; cursor: pointer; }
.md-tabs > label:hover { color: var(--ink); }
.md-tabs > input:checked + label { color: var(--ink); border-bottom-color: var(--ink); }
.md-tabs > input:focus-visible + label { outline: 2px solid var(--ink); outline-offset: 2px; }
.md-panels { border-top: 1px solid var(--line); padding-top: 16px; }
.md-panel { display: none; }
.md-tabs > input:nth-of-type(1):checked ~ .md-panels > .md-panel:nth-child(1),
.md-tabs > input:nth-of-type(2):checked ~ .md-panels > .md-panel:nth-child(2),
.md-tabs > input:nth-of-type(3):checked ~ .md-panels > .md-panel:nth-child(3) { display: block; }