/* Estilos para el modal de vista previa de libros */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.7);
    animation: fadeIn 0.3s;
}

.modal-content {
    position: relative;
    background-color: #fff;
    margin: 5% auto;
    padding: 20px;
    width: 90%;
    max-width: 1000px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    animation: slideIn 0.3s;
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 20px;
    color: #aaa;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.2s;
}

.close-modal:hover {
    color: #333;
}

.modal-body {
    padding: 10px 0;
}

.preview-container {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 30px;
}

.preview-cover {
    flex: 0 0 300px;
    text-align: center;
}

.preview-cover img {
    max-width: 100%;
    max-height: 400px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    border-radius: 5px;
}

.preview-details {
    flex: 1 1 300px;
}

.preview-details h2 {
    margin-top: 0;
    color: #333;
    font-size: 1.8rem;
}

.preview-details p {
    margin-bottom: 20px;
    line-height: 1.6;
}

.preview-actions {
    margin-top: 20px;
}

.preview-samples {
    border-top: 1px solid #eee;
    padding-top: 20px;
}

.preview-samples h3 {
    margin-top: 0;
    margin-bottom: 15px;
    color: #333;
}

.sample-viewer {
    background-color: #f9f9f9;
    border-radius: 8px;
    padding: 20px;
    position: relative;
}

.sample-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 15px;
    gap: 15px;
}

.sample-control-btn {
    background-color: #b7883c;
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: background-color 0.2s;
}

.sample-control-btn:hover {
    background-color: #a07732;
}

.sample-control-btn:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

#pageIndicator {
    font-size: 0.9rem;
    color: #666;
}

.sample-pages {
    text-align: center;
    min-height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.sample-page {
    max-width: 100%;
}

.sample-page img {
    max-width: 100%;
    max-height: 500px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    border-radius: 5px;
}

.no-samples {
    color: #666;
    font-style: italic;
}

/* Animaciones */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from { transform: translateY(-50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Estilos responsivos */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 10% auto;
    }
    
    .preview-container {
        flex-direction: column;
    }
    
    .preview-cover {
        margin: 0 auto;
    }
}