/* Collapsible site sidebar (default mkdocs theme + theme_custom/main.html) */
:root {
  --ct-sidebar-expanded: min(280px, 32vw);
  --ct-sidebar-collapsed: 2.75rem;
  --ct-toc-w: min(280px, 26vw);
}

.ct-doc-layout {
  min-height: min(70vh, calc(100vh - 6rem));
}

.ct-sidebar-shell {
  width: var(--ct-sidebar-expanded);
  min-width: var(--ct-sidebar-expanded);
  max-width: var(--ct-sidebar-expanded);
  transition:
    width 0.22s ease,
    min-width 0.22s ease,
    max-width 0.22s ease;
}

.ct-doc-layout.ct-sidebar-collapsed .ct-sidebar-shell {
  width: var(--ct-sidebar-collapsed);
  min-width: var(--ct-sidebar-collapsed);
  max-width: var(--ct-sidebar-collapsed);
}

.ct-doc-layout.ct-sidebar-collapsed .ct-sidebar-title {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.ct-doc-layout.ct-sidebar-collapsed .ct-sidebar-header {
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  gap: 0.35rem;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.ct-doc-layout.ct-sidebar-collapsed #ct-sidebar-nav-panel {
  opacity: 0;
  visibility: hidden;
  height: 0;
  min-height: 0;
  padding-top: 0 !important;
  padding-bottom: 0 !important;
  overflow: hidden;
  pointer-events: none;
}

#ct-sidebar-nav-panel {
  transition: opacity 0.18s ease;
}

.ct-sidenav-scroll {
  max-height: calc(100vh - 7rem);
  overflow-y: auto;
}

.ct-toc-shell {
  width: var(--ct-toc-w);
  min-width: var(--ct-toc-w);
}

.ct-toc-scroll {
  max-height: calc(100vh - 6rem);
  overflow-y: auto;
}

nav[aria-label="Site navigation"] .nav-link.active {
  font-weight: 600;
}

/* Headings: calmer scale than stock mkdocs (~42px h1 + default BS headings) */
main[role="main"] h1 {
  font-size: clamp(1.75rem, 2.8vw, 2.125rem);
  font-weight: 500;
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

main[role="main"] h2 {
  font-size: clamp(1.35rem, 2.1vw, 1.6rem);
  font-weight: 500;
  line-height: 1.3;
  margin-top: 1.65rem;
  margin-bottom: 0.6rem;
}

main[role="main"] h3 {
  font-size: clamp(1.15rem, 1.75vw, 1.3rem);
  font-weight: 500;
  line-height: 1.35;
  margin-top: 1.35rem;
  margin-bottom: 0.45rem;
}

main[role="main"] h4 {
  font-size: 1.1rem;
  font-weight: 500;
  line-height: 1.35;
  margin-top: 1.15rem;
  margin-bottom: 0.4rem;
}

main[role="main"] h5 {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.35;
  margin-top: 1rem;
  margin-bottom: 0.35rem;
}

main[role="main"] h6 {
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0.01em;
  margin-top: 0.85rem;
  margin-bottom: 0.3rem;
}

/* Large SVG diagrams: intrinsic size can overflow narrow columns */
main[role="main"] img[src$="project-flow.svg"] {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1rem auto;
}