.storyblock-chapter__bg-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.storyblock-chapter__heading-row-trail { margin-bottom: 2rem; }

.content-heading-gap {
    margin-bottom: 2rem;
}

.content-section-pad {
    padding-top: 6rem;
    padding-bottom: 6rem;
}

.content-ledger__stem {
    height: 4rem;
    transform: translateX(-50%);
}

.tour-panel-hover {
    transition: box-shadow 0.2s ease;
}

.tour-panel-hover:hover {
    box-shadow: var(--bs-box-shadow);
}

details[open] .tour-open-icon {
    transform: scale(1.05);
}

details[open] .tour-chevron {
    transform: rotate(180deg);
}

.tour-open-icon,
.tour-chevron {
    transition: transform 0.3s ease;
}

/* content gutter — bracket ticks share width */
.content-gutter__tick {
    width: 1px;
}

/* solo column: span full grid / row when second stack hidden */
.content-gutter__lead--span {
    grid-column: 1 / -1;
}

.timeline-layout__card--hover {
    transition: transform 0.3s ease;
}
.timeline-layout__card--hover:hover {
    transform: scale(1.05);
}

.timeline-layout__img--zoom {
    transition: transform 0.5s ease;
}
.timeline-layout__row:hover .timeline-layout__img--zoom {
    transform: scale(1.1);
}

.timeline-layout__overlay--fade {
    opacity: 0;
    transition: opacity 0.3s ease;
}
.timeline-layout__row:hover .timeline-layout__overlay--fade {
    opacity: 1;
}

.timeline-layout__panel--slide {
    transform: translateY(100%);
    transition: transform 0.3s ease;
}
.timeline-layout__row:hover .timeline-layout__panel--slide {
    transform: translateY(0);
}

.timeline-layout__badge--zoom {
    transition: transform 0.3s ease;
}
.timeline-layout__row:hover .timeline-layout__badge--zoom {
    transform: scale(1.25);
}

.timeline-layout__slot {
    width: 3rem;
    height: 3rem;
}

.timeline-layout__badge {
    width: 2rem;
    height: 2rem;
}

.timeline-layout__line {
    width: 0.25rem;
}


.passage-chapter__visual--glow:hover { transform: scale(1.05); transition: transform .2s ease; }

.passage-chapter__prompt--glow:hover { transform: scale(1.05); transition: transform .2s ease; }

.content-heading-gap {
    margin-bottom: 2rem;
}

.content-img-compact {
    display: block;
    width: 100%;
    height: 12rem;
    min-height: 12rem;
    flex-shrink: 0;
    object-fit: cover;
}
@media (min-width: 768px) {
    .content-img-compact {
        height: 14rem;
        min-height: 14rem;
    }
}

.content-vertical-paper__layout {
    display: grid;
    grid-template-columns: minmax(5rem, 8rem) minmax(0, 1fr);
}

.content-vertical-paper__title {
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    letter-spacing: -0.025em;
}

@media (max-width: 767.98px) {
    .content-vertical-paper__layout {
        grid-template-columns: 1fr;
    }

    .content-vertical-paper__title {
        writing-mode: horizontal-tb;
        transform: none;
    }
}