.intro-gradient-card__area {
    max-width: 48rem;
}


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

/* 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-prose__diamond {
    transform: rotate(45deg);
}

/* content plain — thin vertical rule height (BS has no h-16 spine utility) */
.content-plain__fine-rule {
    height: 6rem;
}

/* gallery v19 — featured preview + thumbnail strip.
   Geometry shared by both CSS frameworks (Bootstrap has no grid-template / aspect utilities). */
.gallery-picker__section {
    padding-top: 6rem;
    padding-bottom: 6rem;
}

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

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

.gallery-picker__head {
    margin-bottom: 2.5rem;
}

.gallery-picker__title {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

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

.gallery-picker__stage,
.gallery-picker__thumb-media {
    aspect-ratio: 16 / 9;
}

.gallery-picker__img {
    object-fit: cover;
}

.gallery-picker__strip {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.75rem;
    margin-top: 1rem;
}

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

/* Gallery v19 — thumbnail selector strip */
.gallery-picker__thumb {
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background: transparent;
    padding: 0;
    font: inherit;
    transition: border-color 150ms ease, transform 150ms ease;
}

.gallery-picker__thumb:hover {
    transform: translateY(-2px);
}


.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;
    }
}

.content-ledger__label {
    letter-spacing: 0.05em;
}