.nav .wrap.wide { width: calc(100% - 48px); }

.docs-layout {
  display: grid;
  grid-template-columns: 256px minmax(0, 1fr) 264px;
  min-height: calc(100vh - var(--nav-h));
}

/* ---------- side index ---------- */

.docs-side {
  position: sticky;
  top: var(--nav-h);
  height: calc(100vh - var(--nav-h));
  overflow-y: auto;
  padding: 24px 24px 48px;
  border-right: 1px solid var(--line);
  scrollbar-width: thin;
}
.search {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  margin-bottom: 8px;
  padding: 0 8px 0 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--fg-3);
}
.search:focus-within { border-color: var(--line-2); }
.search svg { width: 15px; height: 15px; flex: none; }
.search input { flex: 1; min-width: 0; border: 0; outline: 0; background: none; color: var(--fg); font: 14px var(--sans); }
.search input::placeholder { color: var(--fg-3); }
.search input::-webkit-search-cancel-button { display: none; }
.search kbd { padding: 1px 6px; border: 1px solid var(--line); border-radius: 5px; font: 11px var(--sans); color: var(--fg-3); }
.side-group { margin: 28px 0 10px; font-size: 14px; color: var(--fg-3); }
.side-list { display: grid; border-left: 1px solid var(--line); }
.side-list a {
  margin-left: -1px;
  padding: 4px 12px 4px 16px;
  border-left: 1px solid transparent;
  font-size: 14px;
  line-height: 20px;
  color: #d4d4d4;
  transition: color 0.15s, border-color 0.15s;
}
.side-list a:hover { color: var(--fg); border-left-color: var(--fg-3); }
.side-list a.on { color: var(--accent); border-left-color: var(--accent); }

/* ---------- article ---------- */

.doc { width: 100%; max-width: 840px; margin: 0 auto; padding: 32px 32px 96px; }
.doc-top { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.crumb { font-size: 14px; color: var(--fg-3); }
.copy-all, .side-toggle {
  height: 32px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--fg-2);
  font: 13px var(--sans);
  cursor: pointer;
}
.copy-all { margin-left: auto; }
.copy-all:hover, .side-toggle:hover { color: var(--fg); border-color: var(--line-2); }
.side-toggle { display: none; }

article { color: var(--fg-2); }
article h1 { margin: 0 0 32px; font-size: 36px; line-height: 1.25; font-weight: 500; color: var(--fg); }
article h2 { margin: 48px 0 16px; font-size: 26px; line-height: 1.35; font-weight: 500; color: var(--fg); }
article h3 { margin: 32px 0 12px; font-size: 20px; line-height: 1.4; font-weight: 500; color: var(--fg); }
article p { margin: 0 0 16px; font-size: 16px; line-height: 26px; }
article strong { font-weight: 500; color: var(--fg); }
article a { color: #ebebeb; text-decoration: underline; text-decoration-color: rgba(235, 235, 235, 0.5); text-underline-offset: 3px; }
article a:hover { text-decoration-color: currentColor; }
article ul, article ol { margin: 0 0 16px; padding-left: 22px; }
article li { margin-bottom: 8px; padding-left: 4px; font-size: 15px; line-height: 24px; }
article li::marker { color: var(--fg-3); }
article code { font-size: 0.86em; }

article pre {
  position: relative;
  margin: 8px 0 16px;
  padding: 16px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(38, 38, 38, 0.6);
  font: 14px/24px var(--mono);
  color: #d4d4d4;
}
article pre code { font-size: inherit; color: inherit; background: none; border: 0; padding: 0; }
article pre .copy { position: absolute; top: 10px; right: 10px; opacity: 0; transition: opacity 0.15s; background: #262626; }
article pre:hover .copy, article pre .copy:focus-visible { opacity: 1; }

.table { margin: 8px 0 16px; overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; }
.table table { width: 100%; border-collapse: collapse; font-size: 14px; line-height: 20px; }
.table th { padding: 12px 16px; border-bottom: 1px solid var(--line); text-align: left; font-size: 12px; font-weight: 500; color: var(--fg-2); }
.table td { padding: 12px 16px; border-top: 1px solid var(--line); vertical-align: top; color: var(--fg); }
.table tr:first-child td { border-top: 0; }
.table td:first-child { white-space: nowrap; }
.table td:first-child:has(code) { white-space: normal; min-width: 180px; }

.note {
  margin: 0 0 16px;
  padding: 10px 16px;
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
  background: rgba(143, 168, 201, 0.06);
  font-size: 15px;
  line-height: 24px;
  color: #d4d4d4;
}

.doc-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 8px 0 16px; }
article a.doc-card {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg-1);
  text-decoration: none;
  transition: border-color 0.15s, background 0.15s;
}
article a.doc-card:hover { border-color: var(--line-2); background: #1f1f1f; }
.doc-card b { font-size: 16px; font-weight: 500; color: var(--fg); }
.doc-card span { font-size: 14px; line-height: 22px; color: var(--fg-2); }

.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 64px; padding-top: 32px; border-top: 1px solid var(--line); }
.pager a { display: grid; gap: 4px; padding: 14px 18px; border: 1px solid var(--line); border-radius: 12px; transition: border-color 0.15s; }
.pager a:hover { border-color: var(--line-2); }
.pager a.next { grid-column: 2; text-align: right; }
.pager small { font-size: 13px; color: var(--fg-3); }
.pager b { font-size: 15px; font-weight: 500; }

/* ---------- interface frames ---------- */

article .ex { margin: 48px 0 0; }
article .ex.embed { margin: 24px 0 32px; }
.ex.embed .ex-head h3 { font-size: 14px; font-weight: 500; color: var(--fg-2); }
article .stamp { margin-top: 48px; font-size: 13px; color: var(--fg-3); }

/* ---------- tokens ---------- */

.token-block { margin-top: 56px; }
.token-block h3 { margin: 0 0 6px; font-size: 20px; font-weight: 600; }
.token-note { margin: 0 0 20px; max-width: 72ch; font-size: 14px; line-height: 1.7; color: var(--fg-2); }

.swatches { display: grid; grid-template-columns: repeat(auto-fill, minmax(196px, 1fr)); gap: 14px; }
.swatch { display: grid; gap: 3px; padding: 10px; border: 1px solid var(--line); border-radius: 14px; background: var(--bg-1); }
.swatch b { margin-top: 8px; font-size: 14px; font-weight: 600; }
.swatch small { font-size: 12.5px; line-height: 1.55; color: var(--fg-2); }
.chips { display: grid; grid-template-columns: 1fr 1fr; border-radius: 8px; overflow: hidden; border: 1px solid var(--line); }
.chip { display: grid; gap: 8px; padding: 10px; font: 11px var(--mono); }
.chip::before { content: ""; height: 26px; border-radius: 4px; background: var(--c); }
.chip span { color: var(--c); }
.chip.dark { background: #1e1e1e; }
.chip.light { background: #fafafa; }

.ladder, .timing { display: grid; gap: 8px; }
.step, .bar-row {
  display: grid;
  align-items: center;
  gap: 16px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-1);
  font-size: 13px;
}
.step { grid-template-columns: 132px 150px 44px 76px 1fr; }
.sample { height: 30px; border-radius: 4px; background: var(--bg); position: relative; }
.sample.fill::after { content: ""; position: absolute; inset: 6px 10px; border-radius: 2px; background: var(--c); }
.sample.line::after { content: ""; position: absolute; left: 10px; right: 10px; top: 50%; height: 1px; background: var(--c); }
.step code, .bar-row code { background: none; border: 0; padding: 0; color: var(--fg); }
.alpha, .hex, .ms { font-family: var(--mono); font-size: 12px; }
.alpha { color: var(--fg); }
.hex, .use, .ms { color: var(--fg-2); }
.bar-row { grid-template-columns: 132px minmax(80px, 1fr) 64px minmax(0, 1.2fr); }
.track { height: 6px; border-radius: 99px; background: var(--bg-2); overflow: hidden; }
.track-fill { height: 100%; border-radius: 99px; background: linear-gradient(90deg, var(--accent), var(--accent2)); }

.signals { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.signal { display: grid; grid-template-columns: 1fr auto; gap: 4px 10px; padding: 12px; border: 1px solid var(--line); border-radius: 14px; background: var(--bg-1); }
.signal .term { grid-column: 1 / -1; margin-bottom: 10px; border-radius: 8px; width: auto; }
.signal b { font-size: 14px; font-weight: 600; }
.signal .period { justify-self: end; font-size: 13px; font-variant-numeric: tabular-nums; color: var(--fg); }
.signal small { color: var(--fg-2); font-size: 12.5px; line-height: 1.55; }

.glyphs { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 8px; }
.glyph { display: grid; grid-template-columns: 44px 1fr; align-items: center; gap: 12px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg-1); }
.glyph .g { font: 22px var(--term); text-align: center; color: var(--fg); }
.glyph .m { font-size: 13px; color: var(--fg-2); line-height: 1.5; }

.trio { display: flex; flex-wrap: wrap; gap: 16px; }
.mini { margin: 0; display: grid; gap: 8px; }
.mini .term { font-size: 10.5px; border-radius: 10px; border: 1px solid var(--line); }
.mini figcaption { font-size: 12px; color: var(--fg-2); }

/* ---------- page outline ---------- */

.docs-toc { position: sticky; top: var(--nav-h); align-self: start; max-height: calc(100vh - var(--nav-h)); overflow-y: auto; padding: 32px 24px; }
.docs-toc p { margin: 0 0 12px; font-size: 14px; color: var(--fg-3); }
#toc { display: grid; border-left: 1px solid var(--line); }
#toc a { margin-left: -1px; padding: 4px 0 4px 16px; border-left: 1px solid transparent; font-size: 14px; line-height: 20px; color: #d4d4d4; transition: color 0.15s; }
#toc a.sub { padding-left: 28px; }
#toc a:hover { color: var(--fg); }
#toc a.on { color: var(--accent); border-left-color: var(--accent); }

/* ---------- narrow ---------- */

@media (max-width: 1180px) {
  .docs-layout { grid-template-columns: 240px minmax(0, 1fr); }
  .docs-toc { display: none; }
}
@media (max-width: 860px) {
  .docs-layout { grid-template-columns: minmax(0, 1fr); }
  .docs-side {
    position: fixed;
    inset: var(--nav-h) auto 0 0;
    z-index: 45;
    width: min(300px, 85vw);
    height: auto;
    background: var(--bg);
    transform: translateX(-100%);
    transition: transform 0.2s;
  }
  .side-open .docs-side { transform: none; box-shadow: 20px 0 60px rgba(0, 0, 0, 0.5); }
  .side-toggle { display: inline-block; }
  .doc { padding: 24px 20px 72px; }
  article h1 { font-size: 30px; }
  .doc-cards { grid-template-columns: minmax(0, 1fr); }
  .step { grid-template-columns: 90px 1fr auto; }
  .step .hex, .step .use, .bar-row .use { display: none; }
  .bar-row { grid-template-columns: 110px 1fr 60px; }
}