/* Navigation customisation deliberately stays close to MkDocs Material's
 * native box model. In particular, do not offset or resize every
 * `.md-nav__link`: nested labels also own the disclosure icon and Material's
 * scroll-state logic assumes their original geometry. */

.md-nav__title,
.md-nav__link {
  letter-spacing: -0.01em;
}

.md-nav__home-link {
  color: inherit;
}

.md-nav__link--active,
.md-nav--primary .md-nav__link--active,
.md-nav--secondary .md-nav__link--active {
  color: var(--ctu-accent-deep);
  font-weight: 600;
}

.md-sidebar__scrollwrap {
  overflow-x: hidden;
  overscroll-behavior: contain;
  scrollbar-color: var(--ctu-line) transparent;
  scrollbar-gutter: stable;
  scrollbar-width: thin;
}

/* State is restored after an instant-navigation DOM swap. This is not a user
 * interaction, so it must not replay Material's dropdown and chevron motion. */
.docs-nav-restoring .md-sidebar--primary .md-nav,
.docs-nav-restoring .md-sidebar--primary .md-nav__link,
.docs-nav-restoring .md-sidebar--primary .md-nav__icon,
.docs-nav-restoring .md-sidebar--primary .md-nav__list {
  animation: none !important;
  transition: none !important;
}

@media screen and (min-width: 76.25em) {
  .md-sidebar--primary {
    width: 14rem;
    padding-top: 1.45rem;
  }

  /* Material caps the inner navigation at 11.5rem by converting any extra
   * sidebar width into end padding. Reclaim that space so a visible scrollbar
   * cannot force section titles such as "Using Code To UML" to wrap. */
  .md-sidebar--primary .md-sidebar__inner {
    padding-inline-end: 0;
  }

  .md-sidebar--primary .md-nav--primary {
    padding-right: 0.65rem;
  }

  .md-nav--primary > .md-nav__list > .md-nav__item {
    margin: 0.18rem 0 0.55rem;
  }

  /* A fixed two-column grid keeps every chevron on the same axis regardless
   * of label length, scrollbar visibility or how many groups are expanded. */
  .md-nav--primary > .md-nav__list > .md-nav__item--nested > label.md-nav__link,
  .md-nav--primary > .md-nav__list > .md-nav__item--nested > .md-nav__container {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 1.2rem;
    column-gap: 0.5rem;
    align-items: center;
    width: 100%;
    min-height: 2.35rem;
    margin: 0;
    padding: 0.48rem 0.55rem;
    border-radius: 0.45rem;
    color: var(--ctu-ink);
    font-size: 0.72rem;
    font-weight: 650;
    line-height: 1.35;
  }

  .md-nav--primary > .md-nav__list > .md-nav__item--nested > label.md-nav__link > .md-ellipsis,
  .md-nav--primary > .md-nav__list > .md-nav__item--nested > .md-nav__container .md-ellipsis {
    display: block;
    overflow: hidden;
    min-width: 0;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .md-nav--primary > .md-nav__list > .md-nav__item--nested > label.md-nav__link > .md-nav__icon {
    display: grid;
    grid-column: 2;
    place-items: center;
    width: 1.2rem;
    height: 1.2rem;
    margin: 0;
    justify-self: end;
  }

  /* With navigation.indexes MkDocs emits a container holding an index link
   * and a separate toggle label. Give each an explicit grid cell so the
   * chevron cannot move with title width or expanded sibling height. */
  .md-nav--primary > .md-nav__list > .md-nav__item--nested > .md-nav__container > a.md-nav__link {
    grid-column: 1;
    min-width: 0;
    margin: 0;
    padding: 0;
    color: inherit;
    font: inherit;
    line-height: inherit;
  }

  .md-nav--primary > .md-nav__list > .md-nav__item--nested > .md-nav__container > label.md-nav__link {
    display: grid;
    grid-column: 2;
    place-items: center;
    width: 1.2rem;
    height: 1.2rem;
    margin: 0;
    padding: 0;
    justify-self: end;
  }

  .md-nav--primary > .md-nav__list > .md-nav__item--nested > .md-nav__container > label.md-nav__link > .md-nav__icon {
    width: 1.2rem;
    height: 1.2rem;
    margin: 0;
  }

  .md-nav--primary > .md-nav__list > .md-nav__item--nested > label.md-nav__link:hover,
  .md-nav--primary > .md-nav__list > .md-nav__item--nested > .md-nav__container:hover {
    background: var(--ctu-surface);
    color: var(--ctu-accent-deep);
  }

  .md-nav--primary .md-nav__item--nested > .md-nav > .md-nav__list {
    margin: 0.15rem 0 0.2rem 0.7rem;
    padding-left: 0.65rem;
    border-left: 1px solid var(--ctu-line);
  }

  .md-nav--primary .md-nav__item--nested > .md-nav > .md-nav__list .md-nav__link {
    margin: 0;
    padding: 0.38rem 0.45rem;
    border-radius: 0.35rem;
    color: var(--ctu-muted);
    line-height: 1.4;
  }

  .md-nav--primary .md-nav__item--nested > .md-nav > .md-nav__list .md-nav__link:hover {
    color: var(--ctu-accent-deep);
    background: var(--ctu-surface);
  }

  .md-nav--primary .md-nav__item:not(.md-nav__item--nested) > .md-nav__link--active {
    background: var(--ctu-surface-strong);
    box-shadow: inset 0.14rem 0 var(--ctu-accent);
  }

  .md-sidebar--secondary {
    padding-top: 1.7rem;
  }

  .md-nav--secondary .md-nav__title {
    padding-bottom: 0.5rem;
    color: var(--ctu-ink);
    font-size: 0.68rem;
    font-weight: 650;
    letter-spacing: 0.04em;
    text-transform: uppercase;
  }

  .md-nav--secondary > .md-nav__list {
    padding-left: 0.55rem;
    border-left: 1px solid var(--ctu-line);
  }
}

@media screen and (max-width: 76.234375em) {
  .md-nav--primary .md-nav__title {
    display: flex;
    gap: 0.7rem;
    align-items: center;
    height: auto;
    min-height: 5.4rem;
    padding: 1rem 0.8rem;
    background: linear-gradient(120deg, #064b46, #087b70);
    color: #fff;
  }

  .md-nav__home-link {
    overflow: hidden;
    font-size: 0.9rem;
    font-weight: 650;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .md-nav--primary > .md-nav__list {
    padding: 0.55rem 0.45rem 1rem;
  }

  .md-nav--primary .md-nav__link--active {
    background: var(--ctu-surface-strong);
  }
}

@media (prefers-reduced-motion: reduce) {
  .md-nav__link,
  .md-nav__icon {
    transition: none !important;
  }
}