/* Estilos para o frontend do Ebook Manager Pro */

/* Container principal dos ebooks */
.emp-ebooks-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Grid de livros */
.emp-ebooks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    margin: 30px 0;
}

/* Card individual do ebook */
.emp-ebook-card {
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
}

.emp-ebook-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.emp-ebook-cover {
    position: relative;
    overflow: hidden;
    height: 350px;
    background: #f5f5f5;
}

.emp-ebook-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.emp-ebook-card:hover .emp-ebook-cover img {
    transform: scale(1.05);
}

.emp-ebook-no-cover {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    color: #666;
    font-size: 48px;
}

.emp-ebook-content {
    padding: 20px;
}

.emp-ebook-title {
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 8px;
    line-height: 1.4;
    color: #333;
}

.emp-ebook-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

.emp-ebook-title a:hover {
    color: #0073aa;
}

.emp-ebook-authors {
    margin: 0 0 10px;
    font-size: 14px;
    color: #666;
}

.emp-ebook-authors a {
    color: #0073aa;
    text-decoration: none;
    margin-right: 8px;
}

.emp-ebook-authors a:hover {
    text-decoration: underline;
}

.emp-ebook-excerpt {
    font-size: 14px;
    line-height: 1.5;
    color: #555;
    margin: 15px 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.emp-ebook-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 15px 0;
    font-size: 12px;
    color: #888;
}

.emp-ebook-meta-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.emp-ebook-meta-item .dashicons {
    font-size: 14px;
    width: 14px;
    height: 14px;
}

.emp-ebook-categories {
    margin: 10px 0;
}

.emp-ebook-categories a {
    display: inline-block;
    background-color: #f1f1f1;
    color: #666;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 11px;
    text-decoration: none;
    margin-right: 5px;
    margin-bottom: 5px;
    transition: all 0.3s ease;
}

.emp-ebook-categories a:hover {
    background-color: #0073aa;
    color: white;
}

.emp-ebook-price {
    font-size: 16px;
    font-weight: 600;
    color: #28a745;
    margin: 15px 0;
}

.emp-ebook-actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.emp-btn {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    text-align: center;
}

.emp-btn-primary {
    background-color: #0073aa;
    color: white;
}

.emp-btn-primary:hover {
    background-color: #005a87;
    color: white;
    text-decoration: none;
}

.emp-btn-secondary {
    background-color: #f8f9fa;
    color: #333;
    border: 1px solid #ddd;
}

.emp-btn-secondary:hover {
    background-color: #e9ecef;
    color: #333;
    text-decoration: none;
}

/* Filtros e busca */
.emp-filters {
    background: #ffffff;
    border-radius: 8px;
    padding: 25px;
    margin-bottom: 30px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.emp-filters h3 {
    margin: 0 0 20px;
    font-size: 18px;
    color: #333;
}

.emp-filter-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr auto;
    gap: 15px;
    align-items: end;
}

.emp-filter-group {
    display: flex;
    flex-direction: column;
}

.emp-filter-group label {
    font-size: 13px;
    font-weight: 600;
    color: #666;
    margin-bottom: 5px;
}

.emp-filter-group select,
.emp-filter-group input {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.emp-filter-group select:focus,
.emp-filter-group input:focus {
    border-color: #0073aa;
    outline: none;
}

.emp-filter-actions {
    display: flex;
    gap: 10px;
}

/* Single ebook */
.emp-single-ebook {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

.emp-single-header {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

.emp-single-cover {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.emp-single-cover img {
    width: 100%;
    height: auto;
}

.emp-single-no-cover {
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 8px;
    font-size: 72px;
    color: #666;
}

.emp-single-info h1 {
    font-size: 28px;
    font-weight: 700;
    margin: 0 0 15px;
    color: #333;
    line-height: 1.3;
}

.emp-single-authors {
    font-size: 18px;
    color: #0073aa;
    margin: 0 0 20px;
}

.emp-single-authors a {
    color: inherit;
    text-decoration: none;
}

.emp-single-authors a:hover {
    text-decoration: underline;
}

.emp-single-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin: 20px 0;
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 8px;
}

.emp-single-meta-item {
    display: flex;
    flex-direction: column;
}

.emp-single-meta-label {
    font-size: 12px;
    font-weight: 600;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.emp-single-meta-value {
    font-size: 16px;
    color: #333;
}

.emp-single-price {
    font-size: 24px;
    font-weight: 700;
    color: #28a745;
    margin: 20px 0;
}

.emp-single-actions {
    display: flex;
    gap: 15px;
    margin-top: 25px;
}

.emp-single-content {
    background: #ffffff;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: 40px;
}

.emp-single-content h2 {
    margin: 0 0 20px;
    font-size: 20px;
    color: #333;
}

.emp-single-content p {
    line-height: 1.6;
    color: #555;
    margin-bottom: 15px;
}

/* Paginação */
.emp-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin: 40px 0;
}

.emp-pagination a,
.emp-pagination span {
    padding: 8px 16px;
    border: 1px solid #ddd;
    border-radius: 4px;
    text-decoration: none;
    color: #333;
    transition: all 0.3s ease;
}

.emp-pagination a:hover {
    background-color: #0073aa;
    color: white;
    border-color: #0073aa;
}

.emp-pagination .current {
    background-color: #0073aa;
    color: white;
    border-color: #0073aa;
}

/* Loading states */
.emp-loading {
    text-align: center;
    padding: 40px;
    color: #666;
}

.emp-loading::after {
    content: '';
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #0073aa;
    border-radius: 50%;
    animation: emp-spin 1s linear infinite;
    margin-left: 10px;
}

@keyframes emp-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Empty state */
.emp-empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #666;
}

.emp-empty-state h3 {
    font-size: 24px;
    margin: 0 0 15px;
    color: #333;
}

.emp-empty-state p {
    font-size: 16px;
    margin: 0;
}

/* Responsividade */
@media (max-width: 768px) {
    .emp-ebooks-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 20px;
    }
    
    .emp-filter-row {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .emp-single-header {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .emp-single-meta {
        grid-template-columns: 1fr;
    }
    
    .emp-single-actions {
        flex-direction: column;
    }
    
    .emp-btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .emp-ebooks-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .emp-ebook-content {
        padding: 15px;
    }
    
    .emp-filters {
        padding: 20px;
    }
    
    .emp-single-ebook {
        padding: 15px;
    }
}