.intro-animated-gradient__root {
    padding-top: clamp(4rem, 12vw, 10rem);
    padding-bottom: clamp(4rem, 12vw, 10rem);
    min-height: min(32rem, 85vh);
}

@keyframes intro-animated-gradient-spin {
    to {
        transform: rotate(360deg);
    }
}

.intro-animated-gradient__spin--left,
.intro-animated-gradient__spin--right {
    width: 85%;
    height: 85%;
    top: 7.5%;
    animation-name: intro-animated-gradient-spin;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
    transform-origin: 50% 50%;
}

.intro-animated-gradient__spin--left {
    left: -18%;
    animation-duration: 48s;
}

.intro-animated-gradient__spin--right {
    right: -18%;
    animation-duration: 60s;
    animation-direction: reverse;
}

.intro-animated-gradient__area {
    max-width: 48rem;
}


.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;
    }
}

.digest-sq-6  { width: 1.5rem;  height: 1.5rem;  flex-shrink: 0; }
.digest-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 companion — hairline width for BS decor */
.content-companion__hair {
    width: 3rem;
}

/* numeric index column width on small screens */
.content-companion__index {
    min-width: 0;
}

.content-companion__index-digit {
    font-variant-numeric: tabular-nums;
}

.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-details-leaf__summary {
    cursor: pointer;
}

.content-details-leaf__summary::marker {
    font-size: 0.85em;
}

.content-details-leaf__item[open] {
    transform: translateY(-0.0625rem);
}

.content-details-leaf__orb {
    width: 16rem;
    height: 16rem;
    filter: blur(4rem);
}