/**
 * Media Gallery with Filter - Styles
 */

/* Container */
.media-gallery-block {
    --mg-columns: 3;
    --mg-gap: 1rem;
    --mg-primary: #0066cc;
    --mg-primary-hover: #0052a3;
    margin-bottom: 2rem;
}

/* Title */
.media-gallery-title {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    font-weight: 600;
}

/* Empty state */
.media-gallery-empty {
    padding: 2rem;
    text-align: center;
    background: #f5f5f5;
    border: 2px dashed #ddd;
    border-radius: 8px;
    color: #666;
}

/* Filters / Tabs */
.media-gallery-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #e0e0e0;
}

.filter-btn {
    padding: 0.5rem 1rem;
    border: 1px solid var(--mg-primary);
    background: transparent;
    color: var(--mg-primary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.filter-btn:hover {
    background: var(--mg-primary);
    color: white;
}

.filter-btn.active {
    background: var(--mg-primary);
    color: white;
}

.filter-btn:focus {
    outline: 2px solid var(--mg-primary);
    outline-offset: 2px;
}

/* Grid */
.media-gallery-grid {
    display: grid;
    grid-template-columns: repeat(var(--mg-columns), 1fr);
    gap: var(--mg-gap);
}

/* Media Item */
.media-item {
    position: relative;
    margin: 0;
    padding: 0;
    overflow: hidden;
    border-radius: 8px;
    background: #f5f5f5;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.media-item img {
    width: 100%;
    height: auto;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.media-item:hover img {
    transform: scale(1.05);
}

/* PDF specific styles */
.media-item--pdf .media-item-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.media-item--pdf .media-item-link:hover {
    text-decoration: none;
}

/* PDF Badge */
.pdf-badge {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: #dc3545;
    color: white;
    padding: 0.25rem 0.5rem;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 2;
}

/* PDF Placeholder (when no thumbnail) */
.pdf-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    aspect-ratio: 4 / 3;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.pdf-placeholder svg {
    width: 64px;
    height: 64px;
    opacity: 0.9;
}

/* Figcaption */
.media-item figcaption {
    padding: 0.75rem;
    font-size: 0.85rem;
    color: #333;
    background: white;
    text-align: center;
    border-top: 1px solid #eee;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Hidden state for filtering */
.media-item[style*="display: none"] {
    opacity: 0;
    transform: scale(0.8);
}

/* Responsive */
@media (max-width: 992px) {
    .media-gallery-block {
        --mg-columns: 2;
    }
}

@media (max-width: 576px) {
    .media-gallery-block {
        --mg-columns: 1;
    }

    .media-gallery-filters {
        justify-content: center;
    }

    .filter-btn {
        flex: 1 1 auto;
        text-align: center;
        min-width: 80px;
    }
}

/* Bootstrap Italia Integration */
.media-gallery-block .filter-btn {
    font-family: inherit;
}

/* Print styles */
@media print {
    .media-gallery-filters {
        display: none;
    }

    .media-gallery-grid {
        display: block;
    }

    .media-item {
        display: inline-block;
        width: 30%;
        margin: 1%;
        page-break-inside: avoid;
    }
}

/* Editor specific styles */
.block-editor-block-list__block .media-gallery-block {
    pointer-events: none;
}

.block-editor-block-list__block .media-gallery-empty {
    pointer-events: auto;
}

/* Animation for filter transition */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.media-item.fade-in {
    animation: fadeIn 0.3s ease forwards;
}