.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;
}

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

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

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

.content-img-grows {
    display: block;
    width: 100%;
    height: 16rem;
    min-height: 16rem;
    flex-shrink: 0;
    object-fit: cover;
}
@media (min-width: 992px) {
    .content-img-grows {
        height: 20rem;
        min-height: 20rem;
    }
}

.frame-scroll-container { -webkit-overflow-scrolling: touch; }

/* BS (прев’ю + експорт): картки ~вдвічі вужчі за w-72; TW без змін */
.about-frame-strip--bs .frame-scroll-container > li:not([aria-hidden="true"]),
#section-preview-root.section-preview--bootstrap .frame-scroll-container > li:not([aria-hidden="true"]),
[data-preview-framework="bootstrap"] .frame-scroll-container > li:not([aria-hidden="true"]) {
    flex: 0 0 16rem !important;
    width: 16rem !important;
    max-width: min(16rem, 85vw) !important;
}

.frame-sq-12 { width: 3rem; height: 3rem; flex-shrink: 0; }

.frame-card-hover {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.frame-card-hover:hover {
    transform: translateY(-0.25rem);
    box-shadow: var(--bs-box-shadow);
}

.frame-icon-hover {
    transition: transform 0.2s ease;
}

.frame-card-hover:hover .frame-icon-hover {
    transform: scale(1.05);
}

.frame-title-hover {
    transition: color 0.2s ease;
}

.frame-card-hover:hover .frame-title-hover {
    color: var(--bs-primary);
}

/* 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;
}

@media (min-width: 768px) {
    .content-lanes__item--lane-1 {
        margin-left: 0;
        margin-right: auto;
    }

    .content-lanes__item--lane-2 {
        margin-left: auto;
        margin-right: auto;
    }

    .content-lanes__item--lane-3 {
        margin-left: auto;
        margin-right: 0;
    }
}

/* gallery v17 — diagonal cascade ribbon (clip-path + staggered offsets have no BS analog) */
.gallery-cascade__media {
    transition: clip-path 300ms ease;
}

@media (min-width: 640px) {
    [data-cascade-pos] {
        transition: transform 300ms ease;
    }

    [data-cascade-pos="0"] {
        transform: translateY(0);
    }

    [data-cascade-pos="0"] .gallery-cascade__media {
        clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
    }

    [data-cascade-pos="1"] {
        transform: translateY(1.75rem);
    }

    [data-cascade-pos="1"] .gallery-cascade__media {
        clip-path: polygon(0 12%, 100% 0, 100% 100%, 0 88%);
    }

    [data-cascade-pos="2"] {
        transform: translateY(-1.25rem);
    }

    [data-cascade-pos="2"] .gallery-cascade__media {
        clip-path: polygon(0 0, 100% 12%, 100% 88%, 0 100%);
    }

    [data-cascade-pos="3"] {
        transform: translateY(2.25rem);
    }

    [data-cascade-pos="3"] .gallery-cascade__media {
        clip-path: polygon(0 12%, 100% 0, 100% 100%, 0 88%);
    }

    [data-cascade-pos]:hover {
        transform: translateY(0);
    }

    [data-cascade-pos]:hover .gallery-cascade__media {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }
}

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

.content-full-frame {
    max-width: 80rem;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
}

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

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

.content-base-height {
    display: block;
    width: 100%;
    height: 16rem;
    min-height: 16rem;
    flex-shrink: 0;
    object-fit: cover;
}

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