*, *::before, *::after { box-sizing: border-box; }
body {
  font-family: system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  color: #111;
  background: #fff;
}
a { color: #0066cc; }
a:hover { color: #004499; }
nav[aria-label="Breadcrumb"] ol {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  gap: 0.25rem 0.5rem;
  font-size: 0.9em;
}
nav[aria-label="Breadcrumb"] li + li::before {
  content: "/";
  color: #777;
  margin-right: 0.5rem;
}

/* Pages without a sidebar keep the original reading width, centered. */
.layout:not(.has-sidebar) main {
  max-width: 960px;
  margin: 0 auto;
}

/* ── Two-column layout (only when sidebar is present) ───────────────────────── */
.layout.has-sidebar {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 2.5rem;
  align-items: start;
}
nav.sidebar {
  order: -1;
}
.jump-to-nav { display: none; }

@media (max-width: 800px) {
  .layout.has-sidebar {
    grid-template-columns: 1fr;
  }
  nav.sidebar {
    order: 0;
    position: static !important;
    max-height: none !important;
    border-top: 1px solid #eee;
    padding-top: 1rem;
    margin-top: 1rem;
  }
  .jump-to-nav {
    display: inline-block;
    font-size: 0.85em;
  }
}

/* ── Sidebar ────────────────────────────────────────────────────────────────── */
nav.sidebar {
  position: sticky;
  top: 1rem;
  max-height: calc(100vh - 2rem);
  overflow-y: auto;
  font-size: 0.9em;
  padding-right: 0.5rem;
}
.sidebar ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.sidebar li {
  margin: 0.25rem 0;
}
.sidebar a {
  text-decoration: none;
  color: #444;
  display: block;
  padding: 0.1rem 0.25rem;
  border-radius: 3px;
}
.sidebar a:hover {
  color: #0066cc;
  background: #f5f5f5;
}
.sidebar li.current > a {
  font-weight: 600;
  color: #0066cc;
}
.sidebar-section {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid #e8e8e8;
}
.sidebar-heading {
  font-size: 0.72em;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #999;
  margin: 0 0 0.5rem;
  font-weight: 600;
}

/* ── Badges, types, fields ─────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  font-size: 0.75em;
  background: #f0f0f0;
  color: #444;
  padding: 0.1em 0.5em;
  border-radius: 3px;
  font-family: monospace;
  vertical-align: middle;
}
.type { font-family: monospace; font-size: 0.85em; color: #555; }
dt.req::before { content: "* "; }
dl { margin: 0; }
dt { font-family: monospace; font-weight: 600; margin-top: 1rem; }
dt code { font-weight: normal; }
dl > dt:first-child { margin-top: 0; }
dd { margin: 0.2rem 0 0; color: #333; }
footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid #eee;
  font-size: 0.85em;
  color: #777;
}
nav ul { list-style: none; padding: 0; }
nav ul li { margin: 0.4rem 0; }
.type-desc { margin: 0.4rem 0 0.6rem; color: #555; }
.sub-fields { margin: 0.4rem 0 0 1.5rem; border-left: 2px solid #e0e0e0; padding-left: 1rem; }
.type-section { margin-top: 2rem; padding: 1rem 1.25rem; background: #f8f9fa; border-left: 3px solid #adb5bd; border-radius: 0 4px 4px 0; }
.type-section h3 { margin: 0 0 0.5rem; font-size: 1.1em; }
.type-section-desc { margin-bottom: 0.75rem; color: #555; }