.preview-pages-block {
    width: 100%;
    max-width: 1100px !important;
    margin: 20px auto 40px;
    text-align: center;
}

.preview-pages-block[data-preview-reader] .preview-pages-reader {
    display: grid !important;
    grid-template-columns: 48px minmax(0, 1fr) 48px;
    grid-template-areas:
        "previous pages next"
        ". status .";
    align-items: center;
    gap: 16px;
}

.preview-pages-block[data-preview-reader] .preview-pages-gallery {
    grid-area: pages;
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: clamp(12px, 2vw, 24px) !important;
    align-items: center;
    min-width: 0;
}

.preview-pages-block[data-preview-reader] .preview-page-card {
    display: block !important;
    width: 100% !important;
    min-width: 0;
    padding: clamp(8px, 1.4vw, 14px);
    box-sizing: border-box;
    overflow: hidden;
    color: inherit;
    text-decoration: none;
    background: #fff;
    border: 1px solid #ded8d1;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(36, 28, 21, 0.07);
    transition: transform 180ms ease, box-shadow 180ms ease;
}

.preview-pages-block[data-preview-reader] .preview-page-card[hidden] {
    display: none !important;
}

.preview-pages-block[data-preview-reader] .preview-page-card img {
    display: block !important;
    width: 100% !important;
    height: clamp(360px, 58vw, 720px);
    margin: 0;
    object-fit: contain;
    background: #f8f5f1;
    border-radius: 5px;
}

.preview-pages-block[data-preview-reader] .preview-page-card:hover,
.preview-pages-block[data-preview-reader] .preview-page-card:focus-visible {
    z-index: 1;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(36, 28, 21, 0.14);
}

.preview-pages-block[data-preview-reader] .preview-page-card:focus-visible,
.preview-pages-block[data-preview-reader] .preview-pages-arrow:focus-visible {
    outline: 3px solid #111;
    outline-offset: 3px;
}

.preview-pages-block[data-preview-reader] .preview-pages-arrow {
    display: inline-grid;
    width: 48px;
    height: 48px;
    padding: 0;
    place-items: center;
    color: #fff;
    cursor: pointer;
    background: #ce2424;
    border: 0;
    border-radius: 999px;
    transition: transform 180ms ease, opacity 180ms ease;
}

.preview-pages-block[data-preview-reader] .preview-pages-arrow--previous {
    grid-area: previous;
}

.preview-pages-block[data-preview-reader] .preview-pages-arrow--next {
    grid-area: next;
}

.preview-pages-block[data-preview-reader] .preview-pages-arrow:hover:not(:disabled) {
    transform: scale(1.06);
}

.preview-pages-block[data-preview-reader] .preview-pages-arrow:disabled {
    cursor: not-allowed;
    opacity: 0.25;
}

.preview-pages-block[data-preview-reader] .preview-pages-arrow[hidden] {
    display: none;
}

.preview-pages-block[data-preview-reader] .preview-pages-status {
    grid-area: status;
    margin: 2px 0 0;
    color: #59534d;
    font-size: 0.9rem;
}

.preview-pages-block .preview-page-card--placeholder {
    pointer-events: none;
    background: #fafafa;
}

.preview-pages-block .preview-page-card--placeholder img {
    height: 320px;
    object-fit: contain;
    opacity: 0.55;
}

@media (max-width: 767px) {
    .preview-pages-block[data-preview-reader] .preview-pages-reader {
        grid-template-columns: 42px minmax(0, 1fr) 42px;
        gap: 8px;
    }

    .preview-pages-block[data-preview-reader] .preview-pages-gallery {
        grid-template-columns: minmax(0, 1fr) !important;
    }

    .preview-pages-block[data-preview-reader] .preview-page-card {
        padding: 7px;
    }

    .preview-pages-block[data-preview-reader] .preview-page-card img {
        height: min(70vh, 660px);
    }

    .preview-pages-block[data-preview-reader] .preview-pages-arrow {
        width: 42px;
        height: 42px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .preview-page-card,
    .preview-pages-block[data-preview-reader] .preview-pages-arrow {
        transition: none;
    }
}