.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;
}


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

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

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

.bulletin-card-grid__tile {
    max-width: 24rem;
}

/* gallery v16 — polaroid scatter trio.
   Geometry shared by both CSS frameworks (Bootstrap has no utilities for it). */
.gallery-polaroid__section {
    padding-top: 4rem;
    padding-bottom: 4rem;
}

.mxw-4xl {
    max-width: 56rem !important;
}

.mxw-2xl {
    max-width: 42rem !important;
}

.gallery-polaroid__title {
    font-size: 1.875rem;
    margin-bottom: 0.75rem;
}

.gallery-polaroid__lead {
    font-size: 1.125rem;
}

.gallery-polaroid__frame {
    width: 12rem;
    padding: 0.75rem 0.75rem 1.5rem;
}

.gallery-polaroid__caption {
    margin-top: 0.75rem;
}

@media (min-width: 768px) {
    .gallery-polaroid__title {
        font-size: 2.25rem;
    }

    .gallery-polaroid__frame {
        width: 14rem;
    }
}

/* gallery v16 — polaroid scatter trio */
.gallery-polaroid__img {
    aspect-ratio: 1 / 1;
    object-fit: cover;
}

[data-frame] {
    position: relative;
    transition: transform 220ms ease, z-index 0s;
}

[data-frame="a"] {
    transform: rotate(-3deg);
    z-index: 1;
    margin-right: -1.5rem;
}

[data-frame="b"] {
    transform: rotate(2deg) translateY(-0.75rem);
    z-index: 2;
}

[data-frame="c"] {
    transform: rotate(-1.5deg);
    z-index: 1;
    margin-left: -1.5rem;
}

[data-frame]:hover {
    transform: rotate(0deg) translateY(0);
    z-index: 3;
}