.collapse:not(.show) {
    display: none;
}

.collapsing {
    height: 0;
    overflow: hidden;
    transition: height 0.35s ease;
}

@media (prefers-reduced-motion: reduce) {
    .collapsing {
        transition: none;
    }
}

.collapsing.collapse-horizontal {
    width: 0;
    height: auto;
    transition: width 0.35s ease;
}

@media (prefers-reduced-motion: reduce) {
    .collapsing.collapse-horizontal {
        transition: none;
    }
}

.collapse-header {
    background-color: var(--bs-tertiary-bg);
    height: calc(100% - 3.2rem);
    left: 0;
    overflow-y: auto;
    position: absolute;
    right: 0;
    width: 100vw;
    z-index: 5;
    transition: none;
}

.collapse-header.collapsing {
    transition: none;
}