/* E-Book Manager Public Styles */

/* Allgemeine Styles */
.ebook-library-container,
.ebook-single-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Bibliothek-Header */
.ebook-library-header {
    text-align: center;
    margin-bottom: 40px;
    padding: 40px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 10px;
}

.ebook-library-header h1 {
    font-size: 2.5em;
    margin: 0 0 10px 0;
    font-weight: 300;
}

.ebook-library-header p {
    font-size: 1.2em;
    margin: 0;
    opacity: 0.9;
}

/* Filter-Bereich */
.library-filters {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    flex-wrap: wrap;
    align-items: end;
}

.filter-categories,
.filter-sort,
.filter-search {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.filter-categories label,
.filter-sort label {
    font-weight: bold;
    color: #333;
    font-size: 14px;
}

.filter-categories select,
.filter-sort select {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background: white;
    min-width: 150px;
}

.filter-search {
    flex: 1;
    min-width: 200px;
}

.filter-search input {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px 0 0 4px;
    flex: 1;
}

.filter-search button {
    padding: 8px 16px;
    background: #0073aa;
    color: white;
    border: 1px solid #0073aa;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    transition: background-color 0.3s;
}

.filter-search button:hover {
    background: #005a87;
}

/* E-Books Grid */
.ebooks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.ebook-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
}

.ebook-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.ebook-card-cover {
    position: relative;
    height: 200px;
    overflow: hidden;
}

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

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

.ebook-cover-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #666;
    font-size: 14px;
}

.format-badges {
    position: absolute;
    top: 10px;
    right: 10px;
    display: flex;
    gap: 5px;
    flex-wrap: wrap;
}

.format-badge {
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 10px;
    font-weight: bold;
    text-transform: uppercase;
}

.format-badge.more {
    background: #0073aa;
}

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

.ebook-title {
    margin: 0 0 8px 0;
    font-size: 1.2em;
    line-height: 1.3;
}

.ebook-title a {
    color: #333;
    text-decoration: none;
    transition: color 0.3s;
}

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

.ebook-author {
    color: #666;
    font-size: 14px;
    margin-bottom: 10px;
    font-style: italic;
}

.ebook-excerpt {
    color: #555;
    font-size: 14px;
    line-height: 1.4;
    margin-bottom: 15px;
}

.ebook-categories {
    margin-bottom: 15px;
}

.category-tag {
    display: inline-block;
    background: #e3f2fd;
    color: #1976d2;
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 12px;
    text-decoration: none;
    margin-right: 5px;
    margin-bottom: 5px;
    transition: background-color 0.3s;
}

.category-tag:hover {
    background: #bbdefb;
}

.ebook-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    font-size: 14px;
    color: #666;
}

.rating-summary {
    display: flex;
    align-items: center;
    gap: 5px;
}

.rating-stars {
    display: flex;
    gap: 1px;
}

.rating-stars.rating-small .star {
    font-size: 14px;
}

.rating-stars .star {
    font-size: 16px;
    color: #ddd;
}

.rating-stars .star.filled {
    color: #ffc107;
}

.rating-stars .star.half {
    color: #ffc107;
    position: relative;
}

.rating-count {
    font-size: 12px;
    color: #999;
}

.ebook-actions {
    text-align: center;
}

.button {
    display: inline-block;
    padding: 10px 20px;
    background: #0073aa;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s;
    border: none;
    cursor: pointer;
    font-size: 14px;
}

.button:hover {
    background: #005a87;
    color: white;
}

.button-primary {
    background: #0073aa;
}

/* Einzelnes E-Book */
.ebook-single-content {
    background: white;
    border-radius: 12px;
    padding: 40px;
    margin: 20px auto;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.ebook-meta-section {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.ebook-cover {
    text-align: center;
}

.ebook-cover-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.ebook-cover-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #666;
    border-radius: 8px;
}

.ebook-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.ebook-rating-summary {
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    text-align: center;
}

.rating-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 10px;
}

.rating-text {
    font-size: 16px;
    color: #333;
}

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

.ebook-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.info-item {
    display: flex;
    gap: 10px;
}

.info-item strong {
    color: #333;
    min-width: 80px;
}

.ebook-categories,
.ebook-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.ebook-tags .tag {
    background: #e8f5e8;
    color: #2e7d32;
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 12px;
}

/* Download-Bereich */
.ebook-download-section {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 40px;
    text-align: center;
}

.ebook-download-section h3 {
    margin-top: 0;
    color: #333;
    font-size: 1.5em;
}

.download-formats {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.download-button {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 20px;
    background: white;
    border: 2px solid #0073aa;
    border-radius: 8px;
    text-decoration: none;
    color: #0073aa;
    transition: all 0.3s;
    min-width: 120px;
}

.download-button:hover {
    background: #0073aa;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 115, 170, 0.3);
}

.format-icon {
    font-weight: bold;
    font-size: 18px;
}

.format-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.format-name {
    font-weight: bold;
    font-size: 14px;
}

.format-size {
    font-size: 12px;
    opacity: 0.7;
}

/* Bewertungsbereich */
.ebook-rating-section {
    border-top: 1px solid #eee;
    padding-top: 40px;
}

.ebook-rating-form {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 30px;
}

.ebook-rating-form h4 {
    margin-top: 0;
    color: #333;
}

.rating-stars.interactive {
    margin: 15px 0;
}

.rating-stars.interactive .star {
    font-size: 24px;
    cursor: pointer;
    transition: color 0.2s;
}

.rating-stars.interactive .star:hover,
.rating-stars.interactive .star.hover {
    color: #ffc107;
}

.ebook-rating-form textarea {
    width: 100%;
    min-height: 100px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    margin: 15px 0;
    resize: vertical;
}

.submit-rating {
    background: #0073aa;
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}

.submit-rating:hover {
    background: #005a87;
}

.rating-message {
    margin-top: 15px;
    padding: 10px;
    border-radius: 4px;
    display: none;
}

.rating-message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.rating-message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Bewertungsanzeige */
.ebook-ratings-display {
    background: white;
    border-radius: 12px;
    padding: 30px;
}

.rating-summary {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
}

.average-rating {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.rating-number {
    font-size: 2.5em;
    font-weight: bold;
    color: #0073aa;
}

.individual-ratings {
    margin-top: 30px;
}

.rating-item {
    border-bottom: 1px solid #eee;
    padding: 20px 0;
}

.rating-item:last-child {
    border-bottom: none;
}

.rating-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.rating-header strong {
    color: #333;
}

.rating-date {
    color: #666;
    font-size: 14px;
    margin-left: auto;
}

.rating-review {
    color: #555;
    line-height: 1.6;
    margin-top: 10px;
}

.load-more-ratings {
    background: #f8f9fa;
    border: 1px solid #ddd;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 20px;
    transition: background-color 0.3s;
}

.load-more-ratings:hover {
    background: #e9ecef;
}

/* Load More Button */
.load-more-container {
    text-align: center;
    margin-top: 40px;
}

.load-more-button {
    background: #0073aa;
    color: white;
    padding: 15px 30px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.3s;
}

.load-more-button:hover {
    background: #005a87;
    transform: translateY(-2px);
}

.load-more-button:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

/* Kategorien-Grid */
.ebook-categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.category-item {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s;
}

.category-item:hover {
    transform: translateY(-3px);
}

.category-item h3 {
    margin: 0 0 10px 0;
}

.category-item h3 a {
    color: #0073aa;
    text-decoration: none;
}

.category-item h3 a:hover {
    text-decoration: underline;
}

.category-count {
    color: #666;
    font-size: 14px;
    font-weight: bold;
}

/* Featured Grid */
.ebook-featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .ebook-library-container,
    .ebook-single-content {
        padding: 15px;
    }
    
    .ebook-library-header {
        padding: 20px;
    }
    
    .ebook-library-header h1 {
        font-size: 2em;
    }
    
    .library-filters {
        flex-direction: column;
        gap: 15px;
    }
    
    .filter-search {
        min-width: auto;
    }
    
    .ebooks-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 20px;
    }
    
    .ebook-meta-section {
        grid-template-columns: 1fr;
        gap: 20px;
        text-align: center;
    }
    
    .ebook-info {
        grid-template-columns: 1fr;
    }
    
    .download-formats {
        flex-direction: column;
        align-items: center;
    }
    
    .download-button {
        min-width: 200px;
    }
    
    .rating-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .rating-date {
        margin-left: 0;
    }
    
    .average-rating {
        flex-direction: column;
        gap: 10px;
    }
}

@media (max-width: 480px) {
    .ebooks-grid {
        grid-template-columns: 1fr;
    }
    
    .ebook-single-content {
        padding: 20px;
    }
    
    .ebook-rating-form,
    .ebook-download-section {
        padding: 20px;
    }
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #0073aa;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus States */
.button:focus,
.download-button:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid #0073aa;
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .library-filters,
    .ebook-actions,
    .ebook-rating-form,
    .load-more-container {
        display: none;
    }
    
    .ebook-card {
        break-inside: avoid;
    }
}