.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%);
}

.portrait-grid-min-h { min-height: 37.5rem; }

.portrait-sq-10 { width: 2.5rem; height: 2.5rem; flex-shrink: 0; }

.content-river__arc {
    width: 18rem;
    height: 18rem;
}

.content-river__node {
    width: 0.75rem;
    height: 0.75rem;
    transform: translate(-50%, -50%);
}

@media (min-width: 768px) {
    .content-river__copy--right {
        grid-column-start: 2;
    }

    .content-river__copy--left {
        grid-column-start: 1;
        grid-row-start: 1;
    }

    .content-river__spacer--left {
        order: 2;
    }
}

/* content stack rows — animated icon tiles (TW w-20 h-20 has no BS util) */
.content-stack-rows__icon-tile {
    width: 5rem;
    height: 5rem;
}

.content-stack-rows__icon-pulse {
    animation: content-stack-rows-pulse 3.5s ease-in-out infinite;
}

.content-stack-rows__icon-tile {
    animation: content-stack-rows-float 6s ease-in-out infinite;
}

.content-stack-rows__icon-glyph {
    animation: content-stack-rows-tilt 5s ease-in-out infinite;
    transform-origin: center;
}

.content-stack-rows__icon-slot--0 .content-stack-rows__icon-pulse {
    animation-delay: 0s;
}

.content-stack-rows__icon-slot--0 .content-stack-rows__icon-tile {
    animation-delay: 0s;
}

.content-stack-rows__icon-slot--0 .content-stack-rows__icon-glyph {
    animation-delay: 0.2s;
}

.content-stack-rows__icon-slot--1 .content-stack-rows__icon-pulse {
    animation-delay: 0.8s;
}

.content-stack-rows__icon-slot--1 .content-stack-rows__icon-tile {
    animation-delay: 0.8s;
}

.content-stack-rows__icon-slot--1 .content-stack-rows__icon-glyph {
    animation-delay: 1s;
}

.content-stack-rows__icon-slot--2 .content-stack-rows__icon-pulse {
    animation-delay: 1.6s;
}

.content-stack-rows__icon-slot--2 .content-stack-rows__icon-tile {
    animation-delay: 1.6s;
}

.content-stack-rows__icon-slot--2 .content-stack-rows__icon-glyph {
    animation-delay: 1.8s;
}

@keyframes content-stack-rows-float {
    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-0.35rem);
    }
}

@keyframes content-stack-rows-pulse {
    0%,
    100% {
        transform: scale(1);
        opacity: 0.55;
    }

    50% {
        transform: scale(1.14);
        opacity: 0.2;
    }
}

@keyframes content-stack-rows-tilt {
    0%,
    100% {
        transform: rotate(0deg) scale(1);
    }

    50% {
        transform: rotate(-6deg) scale(1.06);
    }
}

@media (prefers-reduced-motion: reduce) {
    .content-stack-rows__icon-pulse,
    .content-stack-rows__icon-tile,
    .content-stack-rows__icon-glyph {
        animation: none;
    }
}

.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-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;
    }
}