:root {
  --sidenav-text-base: 1rem;
  --sidenav-text-lg: 1rem;
  --sidenav-text-color: var(--text-color);
  --sidenav-link-color: var(--color-link);
  --sidenav-link-alpha: 1;
  --sidenav-font-weight-bold: 600;
  --sidenav-icon-size: 0.875rem;
  --sidenav-icon-gap: 0.25rem;
}

.sidenav {
  position: sticky;
  top: 2rem;
  display: block;
}

.sidenav summary::-webkit-details-marker {
  display: none;
}

#SideNavContainer[open] {
  .sidenav__toggle {
    margin-bottom: 2rem;
  }
}

.sidenav__toggle {
  padding: var(--lt-accordion-padding-vertical)
    var(--lt-accordion-padding-horizontal);
  font-weight: var(--sidenav-font-weight-bold);

  border-radius: var(--border-radius-base);

  touch-action: manipulation;
}

.sidenav__toggle span {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidenav__toggle svg {
  align-items: center;
  width: var(--sidenav-icon-size);
  height: var(--sidenav-icon-size);
  flex-shrink: 0;
}

.sidenav summary {
  position: relative;

  list-style: none;
  cursor: pointer;
}

.sidenav__content {
  padding-top: 0.875rem;
  padding-left: calc(var(--sidenav-icon-size) + var(--sidenav-icon-gap));
}

.sidenav__list {
  padding-left: 0;
  margin: 0;

  list-style: none;
}

.sidenav__list > * + *,
.sidenav__list + .sidenav__articles {
  margin-top: 1rem;
}

.sidenav__category + .sidenav__category {
  padding-top: 1rem;
  border-top: var(--border-width) solid var(--color-border);
}

.sidenav__label {
  font-weight: var(--sidenav-font-weight-bold);
}

.sidenav__articles {
  display: block;
}

.sidenav__article-name {
  color: var(--sidenav-link-color);

  opacity: var(--sidenav-link-alpha);
}

.sidenav__article-name[aria-current="page"] {
  --sidenav-link-alpha: 1;
  color: var(--color-brand-secondary);
}

.sidenav__list--main > li > sidenav-details > details > summary {
  font-size: var(--sidenav-text-lg);
}

sidenav-details > details > summary > span {
  display: flex;
  gap: var(--sidenav-icon-gap);
  align-items: center;
}

sidenav-details > details > summary > span > svg {
  position: relative;
  width: var(--sidenav-icon-size);
  height: var(--sidenav-icon-size);

  transform: rotate(-90deg);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

sidenav-details > details[open] > summary > span > svg {
  transform: rotate(0deg);
}

.sidenav__content > * + * {
  margin-top: 0.5rem;
}

sidenav-article-list {
  display: block;
}