/* pbs-frontend.css */
.pbs-single-book-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    font-family: 'Inter', system-ui, sans-serif;
    color: #2c3e50;
}

.pbs-glass-panel {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.05);
    padding: 2.5rem;
}

.pbs-hero {
    display: flex;
    gap: 3rem;
    flex-wrap: wrap;
    align-items: flex-start;
}

.pbs-hero-image {
    flex: 1 1 300px;
    max-width: 400px;
}

.pbs-hero-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease;
}

.pbs-hero-image img:hover {
    transform: translateY(-5px);
}

.pbs-hero-content {
    flex: 2 1 500px;
}

.pbs-book-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    line-height: 1.1;
    color: #1a1a1a;
    letter-spacing: -0.02em;
}

.pbs-book-blurb {
    font-size: 1.1rem;
    line-height: 1.6;
    color: #4a5568;
    margin-bottom: 2rem;
}

.pbs-formats-section h3 {
    font-size: 1.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #718096;
    margin-bottom: 1rem;
}

.pbs-format-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.pbs-btn {
    padding: 14px 28px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
}

.pbs-format-btn {
    background: #f7fafc;
    color: #2d3748;
    border: 1px solid #e2e8f0;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.02);
}

.pbs-format-btn:hover {
    background: #edf2f7;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.pbs-btn-primary {
    background: #1a202c;
    color: #fff;
    box-shadow: 0 4px 15px rgba(26, 32, 44, 0.3);
}

.pbs-btn-primary:hover {
    background: #2d3748;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(26, 32, 44, 0.4);
}

.pbs-btn-buy-direct {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    width: 100%;
    margin-bottom: 1.5rem;
    font-size: 1.15rem;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(118, 75, 162, 0.3);
}

.pbs-btn-buy-direct:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(118, 75, 162, 0.4);
}

.pbs-btn-retailer {
    background: #fff;
    color: #4a5568;
    border: 1px solid #e2e8f0;
    width: 100%;
    margin-bottom: 0.75rem;
}

.pbs-btn-retailer:hover {
    border-color: #cbd5e0;
    background: #f7fafc;
}

.pbs-highlight-badge {
    background: linear-gradient(135deg, #f6d365 0%, #fda085 100%);
    color: #fff;
    padding: 10px;
    border-radius: 8px;
    text-align: center;
    font-weight: 700;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 10px rgba(246, 211, 101, 0.3);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.9rem;
}

/* Modal */
.pbs-modal {
    display: none;
    position: fixed;
    z-index: 99999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.pbs-modal-content {
    margin: 8vh auto;
    width: 90%;
    max-width: 450px;
    position: relative;
    animation: pbsModalFadeIn 0.3s ease-out forwards;
}

@keyframes pbsModalFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.pbs-reader-mode {
    max-width: 800px;
}

.pbs-reader-content {
    margin-top: 2rem;
    font-size: 1.15rem;
    line-height: 1.8;
    color: #2d3748;
    max-height: 60vh;
    overflow-y: auto;
    padding-right: 1rem;
}

.pbs-reader-cta {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #e2e8f0;
    text-align: center;
}

.pbs-close {
    color: #a0aec0;
    position: absolute;
    right: 1.5rem;
    top: 1.5rem;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
    transition: color 0.2s;
}

.pbs-close:hover {
    color: #2d3748;
}

.pbs-retailer-list {
    display: flex;
    flex-direction: column;
    margin-top: 2rem;
}

.pbs-modal-content h2 {
    margin-top: 0;
    font-size: 1.8rem;
    color: #1a202c;
    padding-right: 2rem;
}

/* Gallery Shortcode */
.pbs-filters-bar {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
    flex-wrap: wrap;
    align-items: center;
}

.pbs-filter-select {
    padding: 10px 15px;
    border: 1px solid #ccd0d4;
    border-radius: 6px;
    background-color: #f7fafc;
    color: #2d3748;
    font-size: 0.95rem;
    font-weight: 500;
    min-width: 180px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.pbs-filter-select:hover,
.pbs-filter-select:focus {
    border-color: #a0aec0;
    outline: none;
    box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.15);
}

.pbs-books-gallery {
    display: grid;
    gap: 2rem;
    margin: 2rem 0;
}

.pbs-grid-cols-1 {
    grid-template-columns: 1fr;
}

.pbs-grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.pbs-grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.pbs-grid-cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.pbs-grid-cols-5 {
    grid-template-columns: repeat(5, minmax(0, 1fr));
}

.pbs-grid-cols-6 {
    grid-template-columns: repeat(6, minmax(0, 1fr));
}

.pbs-book-item {
    transition: transform 0.3s ease;
    min-width: 0;
}

.pbs-book-item:hover {
    transform: translateY(-5px);
}

.pbs-gallery-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.pbs-gallery-cover img {
    width: 100%;
    aspect-ratio: 2 / 3;
    object-fit: cover;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.pbs-no-cover {
    width: 100%;
    aspect-ratio: 2/3;
    background: #e2e8f0;
    border-radius: 8px;
}

.pbs-gallery-title {
    margin-top: 1rem;
    font-size: 1.1rem;
    font-weight: 700;
    text-align: center;
    color: #2d3748;
    word-break: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

/* Mobile Responsiveness for Grid */
@media (max-width: 768px) {
    .pbs-books-gallery {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)) !important;
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    .pbs-books-gallery {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 1rem;
    }

    .pbs-gallery-title {
        font-size: 0.95rem;
    }

    .pbs-grid-cols-1 {
        grid-template-columns: 1fr !important;
    }
}