/* gallery.css */
.gallery-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

.gallery-title {
    text-align: center;
    font-size: 2.8rem;
    color: #2d3748;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gallery-description {
    text-align: center;
    color: #718096;
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* فیلتر دسته‌بندی */
.gallery-filter {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.8rem 1.8rem;
    border: 2px solid #e2e8f0;
    background: white;
    border-radius: 50px;
    font-weight: 600;
    color: #4a5568;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.filter-btn:hover {
    border-color: #667eea;
    color: #667eea;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.1);
}

.filter-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-color: transparent;
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

/* گرید گالری */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.gallery-item {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease forwards;
}

.gallery-item:nth-child(1) { animation-delay: 0.1s; }
.gallery-item:nth-child(2) { animation-delay: 0.2s; }
.gallery-item:nth-child(3) { animation-delay: 0.3s; }
.gallery-item:nth-child(4) { animation-delay: 0.4s; }
.gallery-item:nth-child(5) { animation-delay: 0.5s; }

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

.gallery-item:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* تصویر و overlay */
.image-wrapper {
    position: relative;
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.gallery-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-link:hover .gallery-image {
    transform: scale(1.1);
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        to top,
        rgba(0, 0, 0, 0.8) 0%,
        rgba(0, 0, 0, 0.4) 50%,
        rgba(0, 0, 0, 0) 100%
    );
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: flex-end;
    padding: 1.5rem;
}

.gallery-link:hover .image-overlay {
    opacity: 1;
}

.overlay-content {
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.gallery-link:hover .overlay-content {
    transform: translateY(0);
}

.image-title {
    color: white;
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.image-description {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.view-btn {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* اطلاعات تصویر */
.image-info {
    padding: 1.5rem;
}

.image-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.upload-date {
    color: #718096;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.image-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    background: #edf2f7;
    color: #4a5568;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    transition: all 0.3s ease;
}

.tag:hover {
    background: #667eea;
    color: white;
    transform: translateY(-2px);
}

/* دکمه‌های اقدام */
.image-actions {
    display: flex;
    gap: 0.8rem;
    border-top: 1px solid #e2e8f0;
    padding-top: 1rem;
}

.action-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem;
    border: none;
    border-radius: 8px;
    background: #f7fafc;
    color: #4a5568;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.action-btn:hover {
    background: #edf2f7;
    transform: translateY(-2px);
}

.like-btn:hover {
    background: #fed7d7;
    color: #e53e3e;
}

.like-btn.liked {
    background: #fc8181;
    color: white;
}

.download-btn:hover {
    background: #bee3f8;
    color: #2b6cb0;
}

.share-btn:hover {
    background: #c6f6d5;
    color: #38a169;
}

/* حالت خالی گالری */
.empty-gallery {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 2rem;
    background: linear-gradient(135deg, #f6f9fc 0%, #f0f4f8 100%);
    border-radius: 20px;
    border: 2px dashed #cbd5e0;
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    opacity: 0.5;
}

.empty-gallery h3 {
    color: #2d3748;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.empty-gallery p {
    color: #718096;
    max-width: 400px;
    margin: 0 auto;
}

/* صفحه‌بندی */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.page-link {
    padding: 0.7rem 1.2rem;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    color: #4a5568;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    min-width: 45px;
    text-align: center;
}

.page-link:hover {
    border-color: #667eea;
    color: #667eea;
    transform: translateY(-2px);
}

.page-link.current {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-color: transparent;
}

.page-link.first,
.page-link.last {
    background: #f7fafc;
}

/* ریسپانسیو */
@media (max-width: 768px) {
    .gallery-container {
        padding: 1rem;
    }
    
    .gallery-title {
        font-size: 2.2rem;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 1.5rem;
    }
    
    .image-wrapper {
        height: 200px;
    }
    
    .gallery-filter {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .image-actions {
        flex-direction: column;
    }
    
    .action-btn {
        padding: 0.8rem;
    }
}

/* استایل برای lightbox سفارشی */
.lb-data .lb-caption {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2d3748;
    padding: 1rem 0;
}

.lb-data .lb-number {
    color: #718096;
    font-size: 0.9rem;
}

.lb-nav a.lb-prev,
.lb-nav a.lb-next {
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.lb-nav a.lb-prev:hover,
.lb-nav a.lb-next:hover {
    opacity: 1;
}

/* انیمیشن لود تصاویر */
.gallery-image:not(.loaded) {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}