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

.briefing-chapter__title-trail { margin-bottom: 2rem; }

.briefing-chapter__rule-trail {
    margin-bottom: 2rem;
    min-width: 6rem;
    height: 0.25rem;
}

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

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

/* About v10 — tab visibility and active state (no palette in CSS) */

.guide-sq-8  { width: 2rem;   height: 2rem;   flex-shrink: 0; }
.guide-sq-12 { width: 3rem;   height: 3rem;   flex-shrink: 0; }
.guide-sq-16 { width: 4rem;   height: 4rem;   flex-shrink: 0; }
.guide-sq-20 { width: 5rem;   height: 5rem;   flex-shrink: 0; }

.guide-ab10-tab-panel.guide-ab10-tab-panel-hidden {
    display: none;
}

.guide-ab10-tab-btn.guide-ab10-tab-active {
    font-weight: 700;
    transform: translateY(-1px);
}

.guide-ab10-tab-btn.guide-ab10-tab-inactive {
    font-weight: 500;
    opacity: 0.9;
}

.content-quote-panel__slash {
    transform: rotate(45deg);
}

.gallery-zigzag__w-40 { width: 10rem; }
.gallery-zigzag__h-40 { height: 10rem; }
.gallery-zigzag__top-20 { top: 5rem; }

.gallery-zigzag__ratio-3x4 {
    --bs-aspect-ratio: 133.333333%;
}

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

.gallery-zigzag__group-hover-opacity {
    opacity: 0;
    transition: opacity 0.3s ease;
}
.gallery-zigzag__item:hover .gallery-zigzag__group-hover-opacity {
    opacity: 1;
}

.gallery-zigzag__translate-y-full {
    transform: translateY(100%);
    transition: transform 0.5s ease;
}
.gallery-zigzag__item:hover .gallery-zigzag__group-hover-translate-y-0 {
    transform: translateY(0);
}

.gallery-zigzag__group-hover-scale-110 {
    transition: transform 0.5s ease;
}
.gallery-zigzag__item:hover .gallery-zigzag__group-hover-scale-110 {
    transform: scale(1.1);
}


.copy-document__body-stack-gap {
    gap: 4rem;
}

.content-flow-gap {
    gap: 4rem;
}

.content-grid-gap {
    gap: 2rem;
}

.content-prose-measure {
    max-width: 48rem;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
}

.content-article-frame {
    max-width: 56rem;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
}

.content-cta__lift { transition: transform 150ms ease; }
.content-cta__lift:hover { transform: translateY(-2px); }

.content-col-grow {
    flex: 1 1 0%;
    min-width: 0;
}

.content-img-medium {
    display: block;
    width: 100%;
    height: 22rem;
    min-height: 22rem;
    flex-shrink: 0;
    object-fit: cover;
}
@media (min-width: 768px) {
    .content-img-medium {
        height: 28rem;
        min-height: 28rem;
    }
}

.content-thumb-height {
    display: block;
    width: 100%;
    height: 13rem;
    min-height: 13rem;
    flex-shrink: 0;
    object-fit: cover;
}

.content-report-leaf__toggle {
    appearance: none;
    -webkit-appearance: none;
    font: inherit;
    cursor: pointer;
    outline-offset: -0.125rem;
}

.content-report-leaf__glyph {
    transition: transform 180ms ease;
}

.content-report-leaf__toggle.is-open .content-report-leaf__glyph {
    transform: rotate(45deg);
}

.content-report-leaf__orb {
    width: 10rem;
    height: 10rem;
    filter: blur(4rem);
}

.content-flex-min {
    min-width: 0;
}