/* Sidebar menu folding: each title level can be collapsed/expanded. */
/* Hide mdbook's auto chapter numbers ("3.", "3.1.", ...) in the sidebar. */
#mdbook-sidebar strong[aria-hidden="true"] {
    display: none;
}
.chapter-fold-toggle.km-fold-toggle {
    margin-inline-start: auto;
    padding: 0 6px;
    cursor: pointer;
    user-select: none;
    opacity: 0.6;
    font-size: 0.7em;
    line-height: 1;
}
.chapter-fold-toggle.km-fold-toggle div {
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid currentColor;
    transition: transform 0.2s;
}
.chapter li.expanded > .chapter-link-wrapper > .km-fold-toggle div {
    transform: rotate(180deg);
}
/* Part titles (Entities, Meetings, ...) fold their whole section. */
li.part-title {
    cursor: pointer;
    user-select: none;
}
li.part-title::after {
    content: "\25BE"; /* down triangle */
    margin-inline-start: 8px;
    font-size: 0.75em;
    opacity: 0.7;
}
li.part-title.km-part-folded::after {
    content: "\25B8"; /* right triangle */
}
li.part-title.km-part-folded {
    opacity: 0.75;
}