/* /docs — three-column documentation layout (top bar · sidebar · content ·
   "on this page" rail). Layers over style.css: tokens, .brand, .block, and
   .tbl come from there. Loaded only on /docs pages. */

html { scroll-behavior: smooth; }

body.docs { background: var(--paper); }

/* ---- top bar ---- */

.docs-top {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 22px;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.docs-tag {
  padding: 1px 7px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink-faint);
  font-size: 12px;
}

.docs-top-right {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-left: auto;
  font-size: 14px;
}

.docs-gh:hover { color: var(--orange); }

.docs-search {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 8px 5px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper-dim);
}

.docs-search:focus-within { border-color: var(--orange); }

.docs-search input {
  width: 170px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  font: inherit;
  font-size: 13.5px;
}

.docs-search input:focus { outline: none; }

.docs-search kbd {
  padding: 1px 6px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--paper);
  color: var(--ink-faint);
  font: inherit;
  font-size: 11px;
}

/* ---- shell ---- */

.docs-shell {
  display: grid;
  grid-template-columns: 222px minmax(0, 1fr) 190px;
  gap: 44px;
  align-items: start;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- left sidebar ---- */

.docs-side {
  position: sticky;
  top: 55px;
  max-height: calc(100vh - 55px);
  overflow-y: auto;
  padding: 30px 18px 40px 0;
  border-right: 1px solid var(--line);
}

.docs-group { margin: 0 0 24px; }

.docs-side-label {
  margin: 0 0 6px;
  padding: 0 10px;
  color: var(--ink-faint);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.4px;
  text-transform: uppercase;
}

.docs-side-link {
  display: block;
  padding: 5px 10px;
  border-left: 2px solid transparent;
  color: var(--ink-soft);
  font-size: 13.5px;
}

.docs-side-link:hover { color: var(--ink); }

.docs-side-link.active {
  border-left-color: var(--orange);
  background: var(--paper-dim);
  color: var(--ink);
  font-weight: 600;
}

/* ---- content column ---- */

.docs-main {
  min-width: 0;
  max-width: 70ch;
  padding: 32px 0 90px;
}

.docs-crumb {
  margin: 0 0 10px;
  color: var(--ink-faint);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.4px;
  text-transform: uppercase;
}

.docs-main h1 {
  margin: 0 0 12px;
  font-size: 30px;
  letter-spacing: -1px;
}

.docs-lead {
  margin: 0 0 30px;
  color: var(--ink-soft);
  font-size: 15px;
}

.docs-main h2 {
  margin: 36px 0 10px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 17px;
  scroll-margin-top: 72px;
}

.docs-main p { margin: 0 0 12px; font-size: 14px; }
.docs-main ul { margin: 0 0 12px; padding-left: 20px; font-size: 14px; }
.docs-main li { margin: 4px 0; }

.docs-main p a,
.docs-main td a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.docs-main p a:hover,
.docs-main td a:hover { color: var(--orange); }

.docs-main code {
  padding: 1px 5px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--paper-dim);
  font-size: 12.5px;
}

.docs-main pre.block { margin: 0 0 14px; }
.docs-main pre.block code { padding: 0; border: 0; background: transparent; }
.docs-main .tbl { margin: 0 0 14px; }

/* ---- prev / next pager ---- */

.docs-pager {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-top: 52px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 13.5px;
}

.docs-pager a { color: var(--ink-soft); }
.docs-pager a:hover { color: var(--orange); }
.docs-next { margin-left: auto; text-align: right; }

/* ---- right rail ---- */

.docs-rail {
  position: sticky;
  top: 55px;
  padding: 36px 0 40px;
  font-size: 12.5px;
}

.docs-rail-label {
  margin: 0 0 8px;
  color: var(--ink-faint);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.4px;
  text-transform: uppercase;
}

.docs-rail a {
  display: block;
  padding: 3px 0 3px 10px;
  border-left: 1px solid var(--line);
  color: var(--ink-soft);
}

.docs-rail a:hover {
  border-left-color: var(--orange);
  color: var(--ink);
}

/* ---- small screens ---- */

@media (max-width: 1100px) {
  .docs-shell { grid-template-columns: 210px minmax(0, 1fr); }
  .docs-rail { display: none; }
}

@media (max-width: 780px) {
  .docs-shell { grid-template-columns: 1fr; gap: 0; }
  .docs-side {
    position: static;
    display: flex;
    flex-wrap: wrap;
    gap: 0 26px;
    max-height: none;
    padding: 20px 0 6px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .docs-group { min-width: 150px; }
  .docs-search input { width: 90px; }
  .docs-search kbd { display: none; }
  .docs-tag { display: none; }
}

/* SPA swap region participates in the shell grid transparently. */
#docs-view { display: contents; }