#book-details-view {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding-bottom: 4rem;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.book-top-nav {
    display: flex;
    align-items: center;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.back-btn-large {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: 0.2s;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
}

.back-btn-large:hover {
    color: var(--text-primary);
    background: var(--bg-surface-hover);
}

@media (max-width: 767px) {
    .back-btn-large {
        font-size: 0.95rem;
        gap: 0.5rem;
        padding: 0.4rem 0.8rem;
    }
}

.book-layout-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 3rem;
    align-items: start;
}

@media (max-width: 1024px) {
    .book-layout-grid {
        grid-template-columns: 250px 1fr;
        gap: 2rem;
    }
}

@media (max-width: 767px) {
    .book-layout-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

.book-left-col {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .book-left-col {
        position: sticky;
        top: 20px;
    }
}

@media (max-width: 767px) {
    .book-left-col {
        flex-direction: row;
        align-items: flex-start;
        gap: 1rem;
    }
}

.book-poster-large {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6);
    aspect-ratio: 2 / 3;
    object-fit: cover;
    border: 1px solid var(--border);
    background: #111;
}

@media (max-width: 767px) {
    .book-poster-large {
        width: 120px;
        flex-shrink: 0;
    }
}

.book-title-sidebar {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.3;
    margin: 0;
    color: var(--text-primary);
    text-align: center;
    word-wrap: break-word;
}

@media (max-width: 767px) {
    .book-title-sidebar {
        font-size: 1.2rem;
        text-align: left;
    }
}

.book-chapters-column {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    min-width: 0;
}

.chapter-table-container {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.chapter-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.2s;
}

.chapter-row:last-child {
    border-bottom: none;
}

.chapter-row:hover {
    background: var(--bg-surface-hover);
}

@media (max-width: 767px) {
    .chapter-row {
        padding: 0.75rem 1rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }
}

.chapter-main-text {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
}

.chapter-sub-text {
    font-size: 0.9rem;
    color: var(--text-tertiary);
}

@media (max-width: 767px) {
    .chapter-main-text {
        font-size: 0.9rem;
    }
    .chapter-sub-text {
        font-size: 0.8rem;
    }
}

.pagination-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    margin-top: 1rem;
    padding-top: 1rem;
    flex-wrap: wrap;
}

.page-btn {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 500;
    transition: 0.2s;
}

.page-btn:hover:not(:disabled) {
    background: var(--bg-surface-hover);
    border-color: var(--accent);
}

.page-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

@media (max-width: 767px) {
    .page-btn {
        padding: 0.4rem 1rem;
        font-size: 0.9rem;
    }
}

#reader-view {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 200;
    background: #0d0d0d;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 60px;
}

.reader-page-img {
    max-width: 100%;
    width: auto;
    display: block;
    margin-bottom: 0;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

.reader-text-content {
    max-width: 900px;
    width: 95%;
    color: #e4e4e7;
    font-size: 1.1rem;
    line-height: 1.8;
    padding: 2rem;
    background: #18181b;
    margin-bottom: 4rem;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.reader-text-content p {
    margin-bottom: 1.5rem;
}

@media (max-width: 767px) {
    .reader-text-content {
        font-size: 1rem;
        line-height: 1.7;
        padding: 1.5rem;
        width: 100%;
        border-radius: 0;
    }
}

.reader-close-btn {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 210;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    backdrop-filter: blur(4px);
}

.reader-close-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
}

@media (max-width: 767px) {
    .reader-close-btn {
        top: 10px;
        left: 10px;
        padding: 8px 16px;
        font-size: 0.9rem;
    }
}

.loading-state {
    text-align: center;
    padding: 4rem;
    color: var(--text-tertiary);
}

@media (max-width: 767px) {
    .loading-state {
        padding: 2rem 1rem;
    }
}

.book-read-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    color: white;
    z-index: 10;
}

.image-entry[data-type="book"]:hover .book-read-overlay {
    opacity: 1;
}

.book-read-overlay span {
    font-weight: 700;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.8);
}

.book-read-overlay svg {
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.8));
    color: var(--accent);
}

.image-entry[data-type="book"]::after {
    content: "";
    position: absolute;
    inset: 0;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: inherit;
    pointer-events: none;
}

.gallery-masonry .image-entry[data-type="book"] {
    grid-row-end: span 1 !important;
    aspect-ratio: 2 / 3 !important;
    position: relative !important;
    contain: layout style !important;
}

.gallery-masonry .image-entry[data-type="book"]::before {
    content: "";
    display: block;
    padding-top: 150% !important;
}

.gallery-masonry .image-entry[data-type="book"] img {
    position: absolute !important;
    inset: 0 !important;
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
}
.gallery-masonry:has(.image-entry[data-type="book"]) {
    grid-auto-rows: 1fr !important;
}

.gallery-masonry.books-only .image-entry[data-type="book"],
.gallery-masonry .image-entry[data-type="book"] {
    aspect-ratio: 2 / 3;
    height: auto;
    grid-row-end: span 1 !important;
    contain: layout style;
    background: var(--bg-surface);
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
    cursor: pointer;
    transition: transform 0.2s;
}

.gallery-masonry .image-entry[data-type="book"]::before {
    content: "";
    display: block;
    padding-top: 150%;
}

.gallery-masonry .image-entry[data-type="book"] img {
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    transition: all 0.3s ease;
}

.gallery-masonry .image-entry[data-type="book"] img:not(.loaded) {
    background: linear-gradient(90deg, #18181b 0%, #27272a 50%, #18181b 100%);
    background-size: 200% 100%;
    animation: shimmer 1.8s infinite;
    opacity: 1;
}

.gallery-masonry .image-entry[data-type="book"]:hover img {
    filter: brightness(0.7) blur(2px);
    transform: scale(1.08);
}

.gallery-masonry .image-entry[data-type="book"]:hover .book-read-overlay {
    opacity: 1;
}