/* ============================================================
   Senternal subsite layout — docs / helpdesk / forums chrome
   Sidebar + content + prose typography.
   ============================================================ */

.subsite {
  display: grid;
  grid-template-columns: 15.5rem minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  padding-block: 3rem 5rem;
}
@media (max-width: 56rem) {
  .subsite { grid-template-columns: 1fr; }
}

/* ---- Sidebar ---- */

.sidenav {
  position: sticky;
  top: 5.5rem;
  align-self: start;
  font-size: var(--text-sm);
}
@media (max-width: 56rem) {
  .sidenav { position: static; }
}
.sidenav__group { margin-bottom: 2rem; }
.sidenav__head {
  margin: 0 0 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.sidenav__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 1px solid var(--line);
}
.sidenav__list a {
  display: block;
  padding: 0.42rem 0 0.42rem 1rem;
  margin-left: -1px;
  border-left: 1px solid transparent;
  color: var(--text-dim);
  transition: color 0.15s ease, border-color 0.15s ease;
}
.sidenav__list a:hover { color: var(--text-hi); }
.sidenav__list a.is-active {
  color: var(--accent);
  border-left-color: var(--accent);
}

/* ---- Breadcrumb ---- */

.crumbs {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 2rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.crumbs a:hover { color: var(--accent); }
.crumbs .sep { color: var(--line-strong); }
.crumbs .here { color: var(--text-hi); }

/* ---- Prose (article typography) ---- */

.prose h1 {
  font-size: var(--text-3xl);
  font-stretch: 108%;
  margin-bottom: 1rem;
}
.prose .lede { margin-bottom: 2.5rem; }
.prose h2 {
  margin: 3rem 0 1rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
  font-size: var(--text-xl);
}
.prose h3 { margin: 2rem 0 0.8rem; font-size: var(--text-lg); }
.prose p { margin: 0 0 1.1rem; max-width: 70ch; }
.prose ul, .prose ol { padding-left: 1.4rem; max-width: 70ch; }
.prose li { margin-bottom: 0.45rem; }
.prose li::marker { color: var(--accent); }
.prose a {
  color: var(--accent);
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
}
.prose a:hover { border-bottom-color: var(--accent); }
.prose code {
  padding: 0.15em 0.4em;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--ink-3);
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--text-hi);
}
.prose pre {
  margin: 1.5rem 0;
  padding: 1.25rem 1.4rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: #060a12;
  overflow-x: auto;
}
.prose pre code {
  padding: 0;
  border: 0;
  background: none;
  font-size: 0.8125rem;
  line-height: 1.8;
  color: var(--text);
}
.prose .dtable { margin: 1.5rem 0; }

/* ---- Callout ---- */

.callout {
  display: flex;
  gap: 1rem;
  margin: 1.5rem 0;
  padding: 1.1rem 1.3rem;
  border: 1px solid var(--line-strong);
  border-left: 2px solid var(--mint);
  border-radius: var(--radius);
  background: var(--ink-1);
  font-size: var(--text-sm);
}
.callout--warn { border-left-color: var(--amber); }
.callout__glyph {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--accent);
  text-transform: uppercase;
  white-space: nowrap;
  padding-top: 0.15em;
}
.callout--warn .callout__glyph { color: var(--accent-warn); }
.callout p { margin: 0; }

/* ---- Prev / next pagination ---- */

.pagenav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 4rem;
}
.pagenav a {
  padding: 1.1rem 1.3rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: border-color 0.15s ease;
}
.pagenav a:hover { border-color: var(--accent); }
.pagenav .dir {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.4rem;
}
.pagenav .pg-title { font-weight: 600; color: var(--text-hi); font-size: var(--text-sm); }
.pagenav a:last-child { text-align: right; }

/* ---- Slim footer (subsite chrome) ---- */
.footer--slim .footer__legal { border-top: 0; }