.intro-split-gradient__col-left {
    flex: 1 1 60%;
}

.intro-split-gradient__skew-decor {
    width: 8rem;
}

.intro-split-gradient__content-area {
    max-width: 42rem;
}

.intro-split-gradient__text-box {
    max-width: 36rem;
}

.intro-split-gradient__col-right {
    flex: 1 1 40%;
    display: flex;
    flex-direction: column;
    min-height: 0;
    align-self: stretch;
}

.intro-split-gradient__media-frame {
    flex: 1 1 auto;
    position: relative;
    overflow: hidden;
    /* Завжди є «коробка» для absolute img (BS Reboot: img height:auto ламає h-100 у порожнього батька) */
    min-height: 16rem;
    aspect-ratio: 4 / 3;
}

/* Перебиваємо Bootstrap reboot для img */
.intro-split-gradient__media-frame > img.intro-split-gradient__media-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    max-width: none;
    object-fit: cover;
    z-index: 0;
}

@media (min-width: 992px) {
    /* Права смуга на всю висоту в’юпорту — тоді flex-grow має від чого рахувати */
    .intro-split-gradient__col-right {
        min-height: 100vh;
        min-height: 100dvh;
    }

    .intro-split-gradient__media-frame {
        flex: 1 1 0;
        width: 100%;
        min-height: min(50vh, 24rem);
        max-height: none;
        aspect-ratio: auto;
    }

    .intro-split-gradient__media-frame > img.intro-split-gradient__media-img {
        height: 100%;
    }
}

.intro-split-gradient__media-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}


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

.focus-orb {
    top: 0;
    right: 0;
    width: 18rem;
    height: 18rem;
    filter: blur(3rem);
}

.focus-timeline {
    position: relative;
}

.focus-timeline__rail {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 1.5rem;
    width: 2px;
    pointer-events: none;
    --focus-tl-mid: var(--bs-primary, #60a5fa);
    background: linear-gradient(
        to bottom,
        color-mix(in srgb, var(--focus-tl-mid) 80%, transparent),
        color-mix(in srgb, var(--focus-tl-mid) 35%, transparent),
        transparent
    );
}

.dark .focus-timeline__rail {
    --focus-tl-mid: var(--bs-primary, #3b82f6);
}

@media (min-width: 768px) {
    .focus-timeline__rail {
        left: 50%;
        transform: translateX(-50%);
    }
}

.focus-timeline-dot {
    position: absolute;
    top: 1.25rem;
    left: 1.5rem;
    z-index: 2;
    transform: translateX(-50%);
}

@media (min-width: 768px) {
    .focus-timeline-dot {
        left: 50%;
        transform: translateX(-50%);
    }

    /* Відступ карток від центральної лінії (TW + BS) */
    .focus-timeline__item--left .focus-card-hover {
        margin-inline-start: clamp(1.25rem, 4vw, 2.75rem);
    }

    .focus-timeline__item--right .focus-card-hover {
        margin-inline-end: clamp(1.25rem, 4vw, 2.75rem);
    }
}

.focus-card-hover {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.focus-card-hover:hover {
    transform: translateY(-0.125rem);
    box-shadow: var(--bs-box-shadow);
}

.focus-icon-hover {
    transition: transform 0.2s ease;
}

.focus-card-hover:hover .focus-icon-hover {
    transform: scale(1.05);
}

.focus-title-hover {
    transition: color 0.2s ease;
}

.focus-card-hover:hover .focus-title-hover {
    color: var(--bs-primary, #2563eb);
}

.content-prose__diamond {
    transform: rotate(45deg);
}

.content-rail__side {
    flex-shrink: 0;
}

@media (min-width: 1024px) {
    .content-rail__side {
        width: 8rem;
    }

    .content-rail__vertical {
        writing-mode: vertical-rl;
        text-orientation: mixed;
    }
}

.card-stack__accent--1 { width: 10rem; height: 10rem; filter: blur(2rem); }
.card-stack__accent--2 { width: 12rem; height: 12rem; filter: blur(2rem); }
.card-stack__accent--3 { width: 8rem; height: 8rem; filter: blur(1.5rem); }
.card-stack__accent--4 { width: 9rem; height: 9rem; filter: blur(2rem); }

.card-stack__title-line--1, .card-stack__title-line--2 {
    width: 5rem; height: 0.125rem; transform: translateY(-50%);
}
.card-stack__title-dot--1 { width: 0.5rem; height: 0.5rem; top: -0.5rem; right: -0.5rem; }
.card-stack__title-dot--2 { width: 0.5rem; height: 0.5rem; bottom: -0.5rem; left: -0.5rem; }

.card-stack__corner--tl { top: -0.5rem; left: -0.5rem; width: 1.5rem; height: 1.5rem; }
.card-stack__corner--tr { top: -0.5rem; right: -0.5rem; width: 1.5rem; height: 1.5rem; }
.card-stack__corner--bl { bottom: -0.5rem; left: -0.5rem; width: 1.5rem; height: 1.5rem; }
.card-stack__corner--br { bottom: -0.5rem; right: -0.5rem; width: 1.5rem; height: 1.5rem; }

.card-stack__corner--fade {
    opacity: 0;
    transition: opacity 0.3s ease;
}
.card-stack__item:hover .card-stack__corner--fade {
    opacity: 1;
}

.card-stack__media--hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 0.5rem 1rem rgba(0,0,0,0.1);
}
.card-stack__item:hover .card-stack__media--hover {
    transform: scale(1.05);
    box-shadow: 0 1rem 3rem rgba(0,0,0,0.2);
}

.card-stack__decor--glow {
    background: radial-gradient(circle at center, rgba(var(--bs-primary-rgb), 0.2), transparent);
    opacity: 0;
    transition: opacity 0.5s ease;
}
.card-stack__item:hover .card-stack__decor--glow {
    opacity: 1;
}

.card-stack__img--zoom {
    transition: transform 0.5s ease;
}
.card-stack__item:hover .card-stack__img--zoom {
    transform: scale(1.1);
}

.card-stack__overlay--fade {
    opacity: 0;
    transition: opacity 0.3s ease;
}
.card-stack__item:hover .card-stack__overlay--fade {
    opacity: 1;
}

.card-stack__overlay--dark {
    opacity: 0;
    transition: opacity 0.3s ease;
}
.card-stack__item:hover .card-stack__overlay--dark {
    opacity: 1;
}

.card-stack__inner-corner--tl, .card-stack__inner-corner--br {
    width: 4rem; height: 4rem;
}

.card-stack__badge--shadow {
    transition: box-shadow 0.3s ease;
    box-shadow: 0 0.25rem 0.5rem rgba(0,0,0,0.1);
}
.card-stack__item:hover .card-stack__badge--shadow {
    box-shadow: 0 0.5rem 1rem rgba(0,0,0,0.15);
}

.card-stack__accent-corner--tr { right: 0; width: 2rem; height: 2rem; opacity: 0; transition: opacity 0.3s ease; }
.card-stack__accent-corner--bl { left: 0; width: 2rem; height: 2rem; opacity: 0; transition: opacity 0.3s ease; }
.card-stack__item:hover .card-stack__accent-corner--tr,
.card-stack__item:hover .card-stack__accent-corner--bl {
    opacity: 1;
}

.card-stack__panel--slide {
    transform: translateY(100%);
    transition: transform 0.3s ease;
}
.card-stack__item:hover .card-stack__panel--slide {
    transform: translateY(0);
}


.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;
}