/* EbooksFind collection cards */

.kn-collections-grid,
.kn-collection-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
    overflow: visible;
    padding-bottom: 34px;
}

.kn-collection-card {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    display: grid;
    min-height: 220px;
    align-content: end;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, .64);
    border-radius: 22px;
    background:
        radial-gradient(circle at 92% 10%, rgba(var(--kn-accent-rgb), .15), transparent 34%),
        radial-gradient(circle at 8% 100%, rgba(var(--kn-ink-rgb), .12), transparent 34%),
        linear-gradient(145deg, #ffffff, #EEF1E9);
    box-shadow: 0 24px 62px rgba(31, 41, 55, .09), inset 0 1px 0 rgba(255, 255, 255, .88);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    transition: transform .2s ease, box-shadow .2s ease;
    cursor: pointer;
}

.kn-collection-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 32px 78px rgba(31, 41, 55, .12), inset 0 1px 0 rgba(255, 255, 255, .94);
}

.kn-collection-card::before {
    content: "";
    position: absolute;
    inset: 16px 16px auto auto;
    z-index: -1;
    width: 116px;
    height: 154px;
    border: 1px solid rgba(var(--kn-accent-rgb), .26);
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(0, 0, 0, .94), rgba(44, 44, 46, .88));
    box-shadow: -18px 18px 0 rgba(var(--kn-accent-rgb), .22), -34px 34px 0 rgba(var(--kn-ink-rgb), .13);
    transform: rotate(7deg);
}

.kf-podborka-premium-card::before {
    content: none;
}

.kn-collection-card__link {
    position: absolute;
    inset: 0;
    z-index: 4;
}

.kf-podborka-premium-card {
    grid-template-columns: minmax(0, 1fr) 150px;
    gap: 16px;
    align-items: end;
}

.kf-podborka-info-side {
    position: relative;
    z-index: 2;
    display: grid;
    min-width: 0;
    gap: 10px;
}

.kf-podborka-title {
    max-width: 100% !important;
    margin: 0 !important;
    font-size: 0 !important;
    line-height: 1 !important;
}

.kf-podborka-title a {
    display: -webkit-box;
    overflow: hidden;
    color: var(--kn-ink) !important;
    font-size: clamp(21px, 1.55vw, 30px) !important;
    font-weight: 950 !important;
    line-height: 1.06 !important;
    text-decoration: none !important;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 4;
}

.kf-podborka-author-line {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    color: var(--kn-muted);
    font-size: 13px;
    font-weight: 850;
}

.kf-podborka-count-badge {
    display: inline-flex;
    min-height: 30px;
    align-items: center;
    padding: 0 11px;
    border: 1px solid var(--kn-line);
    border-radius: 999px;
    background: var(--kn-surface-soft);
    color: var(--kn-accent-strong);
    font-size: 12px;
    font-weight: 950;
}

.kf-podborka-divider {
    color: rgba(0, 0, 0, .28);
}

.kf-podborka-excerpt {
    display: -webkit-box;
    overflow: hidden;
    color: var(--kn-muted);
    font-size: 14px;
    font-weight: 650;
    line-height: 1.45;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.kf-podborka-footer-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 6px;
}

.kf-metric-pill {
    display: inline-flex;
    min-height: 32px;
    align-items: center;
    gap: 6px;
    padding: 0 10px;
    border: 1px solid var(--kn-line);
    border-radius: 999px;
    background: var(--kn-surface-soft);
    color: var(--kn-ink-soft);
    font-size: 12px;
    font-weight: 900;
}

.kf-metric-pill small {
    opacity: .7;
    font: inherit;
}

.kf-podborka-visual-side {
    position: relative;
    z-index: 1;
    min-height: 150px;
}

.kf-book-stack-wrapper {
    position: absolute;
    right: 0;
    bottom: 4px;
    width: 126px;
    height: 154px;
    transform-origin: 62% 82%;
    transition: transform .45s cubic-bezier(.2, .8, .2, 1);
}

.kf-stacked-book-cover {
    position: absolute;
    display: block;
    overflow: hidden;
    width: 76px;
    height: 112px;
    border: 1px solid rgba(255, 255, 255, .76);
    border-radius: 12px;
    background: #eef1e9;
    box-shadow: 0 18px 36px rgba(31, 41, 55, .12);
    transform-origin: 50% 100%;
    transition:
        transform .5s cubic-bezier(.2, .8, .2, 1),
        box-shadow .35s ease,
        filter .35s ease;
    will-change: transform;
}

.kf-stacked-book-cover img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.kf-stacked-book-cover::after {
    content: "";
    position: absolute;
    inset: 0;
    opacity: 0;
    background: linear-gradient(115deg, transparent 18%, rgba(255, 255, 255, .42) 42%, transparent 64%);
    transform: translateX(-130%);
    transition: opacity .25s ease, transform .7s ease;
    pointer-events: none;
}

.kf-stack-layer-0 {
    right: 0;
    bottom: 0;
    z-index: 4;
    transform: rotate(4deg);
}

.kf-stack-layer-1 {
    right: 30px;
    bottom: 16px;
    z-index: 3;
    transform: rotate(-7deg);
}

.kf-stack-layer-2 {
    right: 54px;
    bottom: 0;
    z-index: 2;
    transform: rotate(-15deg);
}

.kf-stack-layer-3 {
    right: 12px;
    bottom: 38px;
    z-index: 1;
    transform: rotate(13deg);
}

.kf-podborka-premium-card:hover .kf-book-stack-wrapper {
    transform: translateY(-4px) rotate(-1deg);
}

.kf-podborka-premium-card:hover .kf-stacked-book-cover {
    box-shadow: 0 24px 48px rgba(31, 41, 55, .16);
    filter: saturate(1.06) contrast(1.03);
}

.kf-podborka-premium-card:hover .kf-stacked-book-cover::after {
    opacity: 1;
    transform: translateX(130%);
}

.kf-podborka-premium-card:hover .kf-stack-layer-0 {
    transform: translate(8px, -7px) rotate(8deg);
}

.kf-podborka-premium-card:hover .kf-stack-layer-1 {
    transform: translate(-6px, -4px) rotate(-13deg);
}

.kf-podborka-premium-card:hover .kf-stack-layer-2 {
    transform: translate(-13px, 3px) rotate(-22deg);
}

.kf-podborka-premium-card:hover .kf-stack-layer-3 {
    transform: translate(5px, -14px) rotate(18deg);
}

@media (prefers-reduced-motion: reduce) {
    .kf-book-stack-wrapper,
    .kf-stacked-book-cover,
    .kf-stacked-book-cover::after {
        transition: none;
    }
}

.kn-collection-card__badge,
.kn-collection-card__count {
    display: inline-flex;
    width: max-content;
    max-width: 100%;
    min-height: 31px;
    align-items: center;
    padding: 0 11px;
    border: 1px solid var(--kn-line);
    border-radius: 999px;
    background: var(--kn-surface-soft);
    color: var(--kn-accent-strong);
    font-size: 12px;
    font-weight: 950;
    letter-spacing: .06em;
    line-height: 1;
    text-transform: uppercase;
}

.kn-collection-card__title,
.kn-collection-card h2,
.kn-collection-card h3 {
    max-width: 78%;
    margin: 14px 0 8px !important;
    color: var(--kn-ink) !important;
    font-size: clamp(21px, 2vw, 28px) !important;
    font-weight: 950 !important;
    line-height: 1.08 !important;
}

.kn-collection-card__text,
.kn-collection-card p {
    max-width: 78%;
    margin: 0;
    color: var(--kn-muted);
    font-size: 14px;
    font-weight: 650;
    line-height: 1.45;
}

.kn-collection-card__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
}

.kn-collection-card__meta span {
    display: inline-flex;
    min-height: 30px;
    align-items: center;
    padding: 0 10px;
    border-radius: 999px;
    background: var(--kn-surface-soft);
    color: var(--kn-ink-soft);
    font-size: 12px;
    font-weight: 850;
}

@media (max-width: 1180px) {
    .kn-collections-grid,
    .kn-collection-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .kf-podborka-premium-card {
        grid-template-columns: minmax(0, 1fr);
        min-height: 460px;
        align-content: start;
    }

    .kf-podborka-visual-side {
        min-height: 174px;
    }

    .kf-book-stack-wrapper {
        right: 16px;
        bottom: 0;
        width: 168px;
        height: 178px;
    }

    .kf-stacked-book-cover {
        width: 84px;
        height: 124px;
    }
}

@media (max-width: 820px) {
    .kn-collections-grid,
    .kn-collection-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 14px;
    }

    .kn-collection-card {
        min-height: 220px;
        padding: 18px;
        border-radius: 20px;
    }

    .kf-podborka-premium-card {
        grid-template-columns: 1fr;
        min-height: 0;
    }

    .kf-podborka-visual-side {
        display: none;
    }
}

@media (max-width: 560px) {
    .kn-collections-grid,
    .kn-collection-grid {
        grid-template-columns: 1fr;
    }

    .kn-collection-card__title,
    .kn-collection-card h2,
    .kn-collection-card h3,
    .kn-collection-card__text,
    .kn-collection-card p {
        max-width: 100%;
    }
}