/* ============================================================================
   SirBoard — documentation viewer
   Sits on top of sirboard.css and uses only its tokens, so the docs inherit
   the board/drawing theme switch for free.
   ========================================================================= */

.docs-shell {
  display: grid;
  grid-template-columns: 232px minmax(0, 1fr) 190px;
  gap: clamp(20px, 3vw, 44px);
  align-items: start;
  padding: 30px 0 60px;
}
@media (max-width: 1120px) { .docs-shell { grid-template-columns: 220px minmax(0, 1fr); } .outline { display: none; } }
/* minmax(0, 1fr), not a bare 1fr: without it, a wide code block or table in
   the markdown body sets this single track's min-content size, which grows
   the grid (and the page) past the viewport instead of letting the pre's
   own overflow-x:auto scrollbar engage. */
@media (max-width: 880px)  { .docs-shell { grid-template-columns: minmax(0, 1fr); gap: 14px; } }

/* ── Sidebar ─────────────────────────────────────────────────────────────── */
.docs-nav { position: sticky; top: 86px; max-height: calc(100vh - 108px); overflow-y: auto; padding-right: 6px; }
.docs-nav::-webkit-scrollbar { width: 7px; }
.docs-nav::-webkit-scrollbar-thumb { background: var(--edge-2); border-radius: 4px; }

.docs-search {
  display: flex; align-items: center; gap: 8px; margin-bottom: 16px;
  padding: 0 10px; height: 34px; border-radius: var(--r-md);
  background: var(--mask-1); border: 1px solid var(--edge);
}
.docs-search:focus-within { border-color: var(--enig); }
.docs-search svg { width: 14px; height: 14px; flex: none; color: var(--silk-3); }
.docs-search input {
  flex: 1; min-width: 0; border: 0; background: transparent; outline: none;
  color: var(--silk); font-family: var(--display); font-size: 13.5px;
}
.docs-search input::placeholder { color: var(--silk-3); }
.docs-search kbd {
  font-family: var(--mono); font-size: 10.5px; color: var(--silk-3);
  border: 1px solid var(--edge); border-radius: 3px; padding: 1px 5px;
}

.nav-group { margin-bottom: 20px; }
.nav-group .label {
  font-family: var(--display); font-variation-settings: 'wdth' 68;
  font-weight: 600; text-transform: uppercase; letter-spacing: .2em;
  font-size: 10.5px; color: var(--silk-3); padding: 0 8px; margin-bottom: 7px;
}
.docs-nav a {
  display: flex; align-items: center; gap: 9px;
  padding: 7px 9px; border-radius: var(--r-md); margin-bottom: 1px;
  font-size: 14px; color: var(--silk-2);
  border-left: 2px solid transparent;
  transition: background .15s, color .15s, border-color .15s;
}
.docs-nav a svg { width: 15px; height: 15px; flex: none; opacity: .7; }
.docs-nav a:hover { background: var(--mask-2); color: var(--silk); }
.docs-nav a.active {
  background: var(--enig-dim); color: var(--enig-ink);
  border-left-color: var(--enig); font-weight: 600;
}
.docs-nav a.active svg { opacity: 1; }
.no-hits { padding: 10px; font-size: 13px; color: var(--silk-3); }

/* mobile disclosure */
.nav-toggle {
  display: none; align-items: center; gap: 9px; width: 100%;
  padding: 10px 13px; margin-bottom: 10px;
  background: var(--mask-1); border: 1px solid var(--edge); border-radius: var(--r-md);
  color: var(--silk); font-family: var(--display); font-size: 14px; font-weight: 600; cursor: pointer;
}
.nav-toggle svg { width: 16px; height: 16px; }
.nav-toggle .cur { margin-left: auto; font-weight: 400; font-size: 13px; color: var(--silk-3); }
@media (max-width: 880px) {
  .nav-toggle { display: flex; }
  .docs-nav { position: static; max-height: none; padding: 12px; margin-bottom: 12px;
              background: var(--mask-1); border: 1px solid var(--edge); border-radius: var(--r-lg); }
  .docs-nav.collapsed { display: none; }
}

/* ── Breadcrumb ──────────────────────────────────────────────────────────── */
.crumb {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  font-family: var(--mono); font-size: 11.5px; color: var(--silk-3);
  padding-bottom: 14px; margin-bottom: 22px; border-bottom: 1px solid var(--edge);
}
.crumb a:hover { color: var(--enig); }
.crumb .sep { opacity: .5; }
.crumb .now { color: var(--silk); }
.crumb .src { margin-left: auto; display: inline-flex; align-items: center; gap: 6px; }
.crumb .src svg { width: 12px; height: 12px; }
.crumb .src:hover { color: var(--enig); }

/* ── Markdown body ───────────────────────────────────────────────────────── */
.markdown { font-size: 16px; line-height: 1.72; color: var(--silk-2); max-width: 76ch; }
.markdown > *:first-child { margin-top: 0; }

.markdown h1 {
  font-size: clamp(30px, 4vw, 42px); line-height: 1.08; color: var(--silk);
  font-variation-settings: 'wdth' 86; font-weight: 700; letter-spacing: -.03em;
  margin: 0 0 18px;
}
.markdown h2 {
  font-size: 25px; color: var(--silk); font-variation-settings: 'wdth' 90;
  font-weight: 600; letter-spacing: -.022em; margin: 46px 0 14px;
  padding-top: 18px; border-top: 1px solid var(--edge);
}
.markdown h3 { font-size: 18.5px; color: var(--silk); font-variation-settings: 'wdth' 92; margin: 30px 0 10px; }
.markdown h4 { font-size: 15.5px; color: var(--silk); margin: 22px 0 8px; }
.markdown p { margin: 0 0 15px; }
.markdown a { color: var(--enig-ink); border-bottom: 1px solid color-mix(in srgb, var(--enig) 32%, transparent); }
.markdown a:hover { border-bottom-color: var(--enig); }
.markdown strong { color: var(--silk); font-weight: 600; }
.markdown ul, .markdown ol { margin: 0 0 15px; padding-left: 22px; }
.markdown li { margin-bottom: 6px; }
.markdown li::marker { color: var(--enig); }
.markdown hr { border: 0; border-top: 1px solid var(--edge); margin: 34px 0; }

.markdown blockquote {
  margin: 18px 0; padding: 12px 16px;
  border-left: 2px solid var(--enig); background: var(--enig-dim);
  border-radius: 0 var(--r-md) var(--r-md) 0;
}
.markdown blockquote p:last-child { margin-bottom: 0; }

/* heading anchors */
.markdown .anchor {
  float: left; margin-left: -.85em; padding-right: .3em;
  color: var(--silk-3); border: 0; opacity: 0; font-weight: 400;
  transition: opacity .15s;
}
.markdown h2:hover .anchor, .markdown h3:hover .anchor, .markdown h4:hover .anchor { opacity: 1; }

/* code */
.markdown code {
  font-family: var(--mono); font-size: .875em;
  background: var(--mask-2); border: 1px solid var(--edge);
  padding: 1px 5px; border-radius: var(--r-sm); color: var(--enig-ink);
}
.markdown pre {
  position: relative; margin: 0 0 18px; padding: 15px 17px; overflow-x: auto;
  background: var(--mask-1); border: 1px solid var(--edge); border-radius: var(--r-lg);
}
.markdown pre code {
  background: none; border: 0; padding: 0; color: var(--silk-2);
  font-size: 13px; line-height: 1.75;
}
.markdown pre::-webkit-scrollbar { height: 8px; }
.markdown pre::-webkit-scrollbar-thumb { background: var(--edge-2); border-radius: 4px; }

.copybtn {
  position: absolute; top: 9px; right: 9px;
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 8px; border-radius: var(--r-sm);
  background: var(--mask-3); border: 1px solid var(--edge);
  color: var(--silk-3); font-family: var(--mono); font-size: 10.5px;
  cursor: pointer; opacity: 0; transition: opacity .16s, color .16s, border-color .16s;
}
.markdown pre:hover .copybtn { opacity: 1; }
.copybtn:hover { color: var(--enig); border-color: var(--enig); }
.copybtn.done { color: var(--flux); border-color: var(--flux); }
.copybtn svg { width: 12px; height: 12px; }

/* tables — the datasheet treatment */
.md-table-wrap { overflow-x: auto; margin: 0 0 20px; border: 1px solid var(--edge); border-radius: var(--r-lg); }
.markdown table { width: 100%; border-collapse: collapse; font-size: 14px; }
.markdown th {
  text-align: left; padding: 10px 14px; background: var(--mask-2);
  border-bottom: 1px solid var(--edge); color: var(--silk-3); white-space: nowrap;
  font-family: var(--display); font-variation-settings: 'wdth' 70;
  font-size: 10.5px; font-weight: 600; letter-spacing: .19em; text-transform: uppercase;
}
.markdown td { padding: 10px 14px; border-bottom: 1px solid var(--edge); vertical-align: top; }
.markdown tr:last-child td { border-bottom: 0; }
.markdown tbody tr:hover td { background: var(--mask-2); }
.markdown td code { white-space: nowrap; }

.markdown img { border-radius: var(--r-lg); border: 1px solid var(--edge); margin: 6px 0 18px; }

/* ── Outline ─────────────────────────────────────────────────────────────── */
.outline { position: sticky; top: 86px; max-height: calc(100vh - 108px); overflow-y: auto; }
.outline .label {
  font-family: var(--display); font-variation-settings: 'wdth' 68;
  font-weight: 600; text-transform: uppercase; letter-spacing: .2em;
  font-size: 10.5px; color: var(--silk-3); margin-bottom: 10px;
}
.outline a {
  display: block; padding: 4px 0 4px 11px; font-size: 12.8px; color: var(--silk-3);
  border-left: 1px solid var(--edge); transition: color .15s, border-color .15s;
}
.outline a.h3 { padding-left: 22px; }
.outline a:hover { color: var(--silk-2); }
.outline a.active { color: var(--enig-ink); border-left-color: var(--enig); }

/* ── Pager ───────────────────────────────────────────────────────────────── */
.docs-pager { display: flex; gap: 12px; margin-top: 46px; padding-top: 22px; border-top: 1px solid var(--edge); }
.docs-pager a {
  flex: 1; padding: 13px 16px; border-radius: var(--r-lg);
  background: var(--mask-1); border: 1px solid var(--edge);
  transition: border-color .18s, transform .18s var(--ease);
}
.docs-pager a:hover { border-color: var(--enig); transform: translateY(-2px); }
.docs-pager .next { text-align: right; }
.docs-pager .dir { display: block; font-family: var(--mono); font-size: 10.5px; color: var(--silk-3); }
.docs-pager .ttl { display: block; margin-top: 3px; font-weight: 600; color: var(--silk); font-size: 14.5px; }

/* ── Loading / error ─────────────────────────────────────────────────────── */
.skel i { display: block; height: 13px; border-radius: 4px; background: var(--mask-2); margin-bottom: 13px; animation: sk 1.5s ease-in-out infinite; }
.skel i.t { height: 30px; width: 46%; margin-bottom: 24px; }
.skel i:nth-child(3) { width: 88%; } .skel i:nth-child(4) { width: 72%; }
@keyframes sk { 0%,100% { opacity: .55; } 50% { opacity: 1; } }
.docs-error { padding: 16px 18px; border-radius: var(--r-lg); background: var(--mask-1); border: 1px solid var(--resist); color: var(--silk-2); }
.docs-error a { color: var(--enig-ink); }