.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;
}

/* About v10 — tab visibility and active state (no palette in CSS) */

.guide-sq-8  { width: 2rem;   height: 2rem;   flex-shrink: 0; }
.guide-sq-12 { width: 3rem;   height: 3rem;   flex-shrink: 0; }
.guide-sq-16 { width: 4rem;   height: 4rem;   flex-shrink: 0; }
.guide-sq-20 { width: 5rem;   height: 5rem;   flex-shrink: 0; }

.guide-ab10-tab-panel.guide-ab10-tab-panel-hidden {
    display: none;
}

.guide-ab10-tab-btn.guide-ab10-tab-active {
    font-weight: 700;
    transform: translateY(-1px);
}

.guide-ab10-tab-btn.guide-ab10-tab-inactive {
    font-weight: 500;
    opacity: 0.9;
}

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

.content-brief__orbit {
    left: 50%;
    top: 50%;
    width: min(34rem, 78vw);
    height: min(34rem, 78vw);
    transform: translate(-50%, -50%);
    animation: content-brief-orbit 18s linear infinite;
}

.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);
    }
}

@keyframes content-brief-orbit {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }

    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

.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;
}

/* Matches Tailwind flex-1: equal columns on row; avoids shrink-to-content width on Bootstrap */
.content-col-grow {
    flex: 1 1 0%;
    min-width: 0;
}

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

.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-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);
}