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

.backdrop-grid-min-h { min-height: 30vh; }

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

.backdrop-card-hover {
    transition: transform 0.3s ease;
}

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

.content-brief__float-square {
    width: 4rem;
    height: 4rem;
}

.content-brief__float-square--slow {
    animation: content-brief-float-slow 10s ease-in-out infinite;
}

.content-brief__float-square--fast {
    animation: content-brief-float-fast 7s ease-in-out infinite;
}

@keyframes content-brief-float-slow {
    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(-8px) rotate(6deg);
    }
}

@keyframes content-brief-float-fast {
    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(8px) rotate(-7deg);
    }
}

/* content stride — alternating paragraph inset (no surfaces) */
.content-stride__para--odd {
    padding-inline-start: 0;
}

@media (min-width: 768px) {
    .content-stride__para--even {
        padding-inline-start: 2rem;
    }
}

.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;
}

.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;
    }
}

.content-margin-notes__aside {
    align-self: start;
}

@media (min-width: 992px) {
    .content-margin-notes__aside {
        position: sticky;
        top: 2rem;
    }
}