/* Navtara Gallery Styles */

/* Section Styles */
.navtara-gallery-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    position: relative;
    overflow: hidden;
}

.navtara-gallery-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="20" cy="20" r="1" fill="%23000" opacity="0.05"/><circle cx="50" cy="50" r="1" fill="%23000" opacity="0.03"/><circle cx="80" cy="80" r="1" fill="%23000" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

.gallery-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

/* Header Styles */
.gallery-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-subtitle {
    font-size: 14px;
    font-weight: 600;
    color: #1e40af;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
}

.section-subtitle::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background: linear-gradient(135deg, #1e40af 0%, #0ea5e9 50%, #06b6d4 100%);
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 20px;
    line-height: 1.2;
}

.section-description {
    font-size: 18px;
    color: #6c757d;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Filter Styles */
.gallery-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 50px;
}

.filter-btn {
    padding: 12px 24px;
    border: 2px solid #e9ecef;
    background: white;
    color: #6c757d;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    font-size: 14px;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1e40af 0%, #0ea5e9 50%, #06b6d4 100%);
    transition: left 0.3s ease;
    z-index: -1;
}

.filter-btn:hover,
.filter-btn.active {
    border-color: #1e40af;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(30, 64, 175, 0.3);
}

.filter-btn:hover::before,
.filter-btn.active::before {
    left: 0;
}

/* Gallery Grid */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 50px;
}

.gallery-item {
    opacity: 1;
    transform: scale(1);
    transition: all 0.5s ease;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.gallery-item.hidden {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

.gallery-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
    cursor: pointer;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-item:hover {
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

/* Responsive Design */
@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 15px;
    }
    
    .gallery-item img {
        height: 200px;
    }
    
    .gallery-filter {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }
    
    .filter-btn {
        width: 100%;
        max-width: 200px;
    }
}

/* Load More Button */
.gallery-load-more {
    text-align: center;
}

.load-more-btn {
    padding: 15px 40px;
    background: linear-gradient(135deg, #1e40af 0%, #0ea5e9 50%, #06b6d4 100%);
    color: white;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
}

.load-more-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

.load-more-btn i {
    transition: transform 0.3s ease;
}

.load-more-btn:hover i {
    transform: translateY(3px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .navtara-gallery-section {
        padding: 60px 0;
    }
    
    .gallery-container {
        padding: 0 15px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .section-description {
        font-size: 16px;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .gallery-filter {
        flex-direction: column;
        align-items: center;
    }
    
    .filter-btn {
        width: 100%;
        max-width: 280px;
    }
    
    .lightbox-content {
        margin: 10% auto;
        max-width: 95%;
        max-height: 80%;
    }
    
    .lightbox-caption {
        padding: 20px;
    }
    
    .lightbox-caption h3 {
        font-size: 20px;
    }
    
    .lightbox-navigation {
        padding: 0 10px;
    }
    
    .nav-btn {
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 480px) {
    .gallery-header {
        margin-bottom: 40px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .image-container {
        height: 200px;
    }
    
    .overlay-content h3 {
        font-size: 18px;
    }
    
    .gallery-actions {
        gap: 8px;
    }
    
    .view-btn,
    .info-btn {
        width: 40px;
        height: 40px;
    }
}

/* Animation Classes for AOS */
[data-aos="fade-up"] {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

[data-aos="fade-up"].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

[data-aos="zoom-in"] {
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.6s ease;
}

[data-aos="zoom-in"].aos-animate {
    opacity: 1;
    transform: scale(1);
}

/* Loading Animation */
@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

.gallery-item.loading {
    animation: pulse 1.5s infinite;
}

/* Smooth Filtering Animation */
.gallery-grid {
    transition: all 0.5s ease;
}

.gallery-item {
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.gallery-item.filter-out {
    opacity: 0;
    transform: scale(0.8) translateY(20px);
    pointer-events: none;
}