:root {
  --sidenav-text-base: 1rem;
  --sidenav-text-lg: 1.125rem;
  --sidenav-text-scale: 0.8765;
  --sidenav-text-color: #56595D;
  --sidenav-link-color: #56595D;
  --sidenav-link-alpha: 1;
  --sidenav-font-weight-bold: 600;
}

.sidenav {
  display: block;
}

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

.sidenav__toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;

  font-weight: var(--sidenav-font-weight-bold);

  border-top: var(--border-width) solid var(--border-color);
  border-bottom: var(--border-width) solid var(--border-color);

  touch-action: manipulation;
}

.sidenav__toggle svg {
  align-items: center;
  width: 1rem;
  height: 1rem;
}

.sidenav summary {
  position: relative;

  list-style: none;
  cursor: pointer;
}

.sidenav__content {
  padding-top: 0.5rem;
  padding-left: 1.5rem;
}

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

  list-style: none;
}

.sidenav__list > * + *,
.sidenav__list + .sidenav__articles {
  margin-top: 0.5rem;
}

.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;
  text-decoration: underline;
}

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