/* ===== GALLERY PAGE STYLES ===== */

/* Page Header */
.page-header {
    position: relative;
    padding: calc(110px + var(--space-20)) 0 var(--space-20);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--text-white);
    overflow: hidden;
    min-height: 50vh;
    display: flex;
    align-items: center;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
    position: relative;
    z-index: 10;
}

.header-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

/* Breadcrumbs */
.breadcrumbs {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
    opacity: 0;
    transform: translateY(30px);
}

.breadcrumb-item {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb-item:hover {
    color: var(--text-white);
}

.breadcrumb-item.active {
    color: var(--secondary-color);
    font-weight: var(--font-weight-semibold);
}

.breadcrumb-separator {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-sm);
}

/* Page Title */
.page-title {
    font-family: var(--font-primary);
    font-size: var(--font-size-6xl);
    font-weight: var(--font-weight-extrabold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--space-6);
    background: linear-gradient(135deg, var(--text-white), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0;
    transform: translateY(50px);
    letter-spacing: -0.02em;
}

.page-description {
    font-size: var(--font-size-xl);
    line-height: var(--line-height-relaxed);
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto;
    opacity: 0;
    transform: translateY(30px);
}

/* Header Background Shapes */
.header-bg-shapes {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 1;
}

.header-bg-shapes .bg-shape {
    position: absolute;
    border-radius: var(--radius-full);
    opacity: 0.1;
}

.header-bg-shapes .shape-1 {
    width: 250px;
    height: 250px;
    background: linear-gradient(135deg, var(--secondary-color), #fbbf24);
    top: 15%;
    right: -8%;
    animation: headerFloat1 12s ease-in-out infinite;
}

.header-bg-shapes .shape-2 {
    width: 180px;
    height: 180px;
    background: linear-gradient(135deg, var(--accent-color), #059669);
    bottom: 20%;
    left: -5%;
    animation: headerFloat2 10s ease-in-out infinite reverse;
}

.header-bg-shapes .shape-3 {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
    top: 50%;
    left: 15%;
    animation: headerFloat3 8s ease-in-out infinite;
}

/* Gallery Section */
.gallery-section {
    position: relative;
    padding: var(--space-32) 0;
    background: linear-gradient(135deg, var(--bg-white) 0%, #f8fafc 100%);
}

.gallery-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-4);
    position: relative;
    z-index: 10;
    display: flex;
    flex-direction: column;
}

/* Filter Controls */
.filter-controls {
    margin-bottom: var(--space-16);
}

/* Filter Instructions */
.filter-instructions {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(245, 158, 11, 0.05));
    border: 1px solid rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--space-4) var(--space-6);
    margin-bottom: var(--space-8);
    text-align: center;
}

.filter-help-text {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    font-size: var(--font-size-sm);
    color: var(--text-medium);
    margin: 0;
    font-weight: var(--font-weight-medium);
}

.filter-help-text i {
    color: var(--primary-color);
    font-size: var(--font-size-base);
}

.filter-group {
    margin-bottom: var(--space-12);
    position: relative;
}

/* Filter Group Hierarchy */
.filter-group.primary-filter {
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.02), rgba(37, 99, 235, 0.05));
}

.filter-group.secondary-filter {
    border: 2px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    background: var(--bg-white);
    transition: all var(--transition-normal);
}

.filter-group.secondary-filter.active {
    border-color: var(--secondary-color);
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.02), rgba(245, 158, 11, 0.05));
}

.filter-title {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--text-dark);
    margin-bottom: var(--space-6);
    opacity: 0;
    transform: translateY(20px);
    flex-wrap: wrap;
}

.filter-title i {
    color: var(--primary-color);
    font-size: var(--font-size-lg);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-white);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    border-radius: var(--radius-full);
    margin-left: auto;
}

.secondary-filter .step-number {
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-dark));
}

.filter-subtitle {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-normal);
    color: var(--text-medium);
    font-style: italic;
    width: 100%;
    margin-top: var(--space-1);
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.filter-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3) var(--space-6);
    background: var(--bg-white);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-medium);
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    opacity: 0;
    transform: translateY(20px);
    text-decoration: none;
    min-width: 80px;
}

.filter-btn:hover,
.filter-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-color: var(--primary-color);
    color: var(--text-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.filter-btn span {
    white-space: nowrap;
}

/* Disabled State for Hierarchical Filtering */
.filter-btn:disabled {
    background: var(--bg-light);
    color: var(--text-light);
    cursor: not-allowed;
    opacity: 0.6;
    transform: none !important;
    box-shadow: none !important;
    border-color: var(--border-light);
}

.filter-btn:disabled:hover {
    transform: none;
    box-shadow: none;
    background: var(--bg-light);
}



/* Gallery Grid */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-6);
    margin-bottom: var(--space-16);
    width: 100%;
}

.gallery-item {
    position: relative;
    aspect-ratio: 4/3;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-slow);
    opacity: 0;
    transform: translateY(30px) scale(0.95);
    cursor: pointer;
}

.gallery-item:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.gallery-item.hidden {
    display: none;
}

.image-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery-item:hover .image-container img {
    transform: scale(1.05);
}

/* Image Overlay */
.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg, 
        rgba(37, 99, 235, 0.8) 0%, 
        rgba(245, 158, 11, 0.8) 100%
    );
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

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

.overlay-content {
    text-align: center;
    color: var(--text-white);
}

.image-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.image-year {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    background: rgba(255, 255, 255, 0.2);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    backdrop-filter: blur(10px);
}

.image-event {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    opacity: 0.9;
}

.view-btn {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: var(--font-size-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
    margin: 0 auto;
}

.view-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.6);
    transform: scale(1.1);
}

/* Load More Section */
.load-more-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    padding: var(--space-12) var(--space-4);
    margin: 0 auto;
    max-width: 1400px;
    width: 100%;
    opacity: 0;
    transform: translateY(20px);
}

.load-more-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #ffffff;
    border: none;
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.15);
    min-width: 160px;
    justify-content: center;
}

.load-more-btn:hover {
    background: linear-gradient(135deg, #101222, #0d1a3f) !important;
    color: #ffffff !important;
    transform: translateY(-2px);
    box-shadow: 
        0 8px 25px rgba(37, 99, 235, 0.3),
        0 4px 12px rgba(37, 99, 235, 0.2);
}

.load-more-btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-md);
}

.load-more-btn .btn-text {
    flex: 1;
    text-align: center;
    color: inherit;
}

.load-more-btn:hover .btn-text {
    color: #ffffff !important;
}

.load-more-btn .btn-count {
    font-size: var(--font-size-sm);
    opacity: 0.9;
    font-weight: var(--font-weight-medium);
    color: inherit;
}

.load-more-btn:hover .btn-count {
    color: #ffffff !important;
}

.load-more-btn i {
    font-size: var(--font-size-sm);
    transition: transform var(--transition-normal);
    color: inherit;
}

.load-more-btn:hover i {
    transform: translateY(2px);
    color: #ffffff !important;
}

.load-more-btn:disabled {
    background: var(--bg-medium) !important;
    color: var(--text-light) !important;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.load-more-btn:disabled:hover {
    background: var(--bg-medium) !important;
    color: var(--text-light) !important;
    transform: none !important;
    box-shadow: none !important;
}

.pagination-info {
    font-size: var(--font-size-xs);
    color: var(--text-medium);
    text-align: center;
    padding: var(--space-1) var(--space-3);
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
}

.pagination-info span {
    font-weight: var(--font-weight-semibold);
    color: var(--primary-color);
}

/* Load More Loading State */
.load-more-btn.loading {
    pointer-events: none;
}

.load-more-btn.loading .btn-text::after {
    content: '';
    display: inline-block;
    width: 12px;
    height: 12px;
    margin-left: var(--space-2);
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Load More Section Hidden State */
.load-more-section.hidden {
    display: none;
}

/* Lightbox Modal */
.lightbox-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.lightbox-modal.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.lightbox-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    display: flex;
    flex-direction: column;
    opacity: 0;
    transform: scale(0.9);
    transition: all var(--transition-normal);
}

.lightbox-modal.active .lightbox-content {
    opacity: 1;
    transform: scale(1);
}

/* Lightbox Controls */
.lightbox-close {
    position: absolute;
    top: -60px;
    right: 0;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    color: var(--text-white);
    font-size: var(--font-size-xl);
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    backdrop-filter: blur(10px);
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    color: var(--text-white);
    font-size: var(--font-size-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateY(-50%);
    backdrop-filter: blur(10px);
    z-index: 10;
}

.lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-50%) scale(1.1);
}

.lightbox-prev {
    left: -70px;
}

.lightbox-next {
    right: -70px;
}

/* Lightbox Image */
.lightbox-image-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-6);
}

.lightbox-image {
    max-width: 100%;
    max-height: 70vh;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    transition: transform var(--transition-normal);
}

.lightbox-loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: none;
}

.loader-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.2);
    border-top: 3px solid var(--text-white);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Lightbox Info */
.lightbox-info {
    color: var(--text-white);
    text-align: center;
}

.lightbox-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
    padding: 0 var(--space-4);
}

.lightbox-details {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.lightbox-year {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--secondary-color);
}

.lightbox-separator {
    color: rgba(255, 255, 255, 0.5);
}

.lightbox-event {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    opacity: 0.9;
}

.lightbox-counter {
    font-size: var(--font-size-sm);
    opacity: 0.8;
    background: rgba(255, 255, 255, 0.1);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    backdrop-filter: blur(10px);
}

.lightbox-controls {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
}

.lightbox-control {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    color: var(--text-white);
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.lightbox-control:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

/* Filter Animations */
@keyframes filterIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes filterOut {
    from {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
    to {
        opacity: 0;
        transform: scale(0.9) translateY(-20px);
    }
}

.gallery-item.filter-in {
    animation: filterIn 0.5s ease-out forwards;
}

.gallery-item.filter-out {
    animation: filterOut 0.3s ease-in forwards;
}

/* Background Animations */
@keyframes headerFloat1 {
    0%, 100% { transform: translateY(0px) rotate(0deg) scale(1); }
    33% { transform: translateY(-15px) rotate(120deg) scale(1.1); }
    66% { transform: translateY(10px) rotate(240deg) scale(0.9); }
}

@keyframes headerFloat2 {
    0%, 100% { transform: translateY(0px) rotate(0deg) scale(1); }
    50% { transform: translateY(-20px) rotate(180deg) scale(1.15); }
}

@keyframes headerFloat3 {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    25% { transform: translateY(-8px) rotate(90deg); }
    50% { transform: translateY(4px) rotate(180deg); }
    75% { transform: translateY(-12px) rotate(270deg); }
}

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

/* Responsive Design */
@media (max-width: 1024px) {
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: var(--space-4);
    }
    

}

@media (max-width: 768px) {
    .page-header {
        padding: calc(70px + var(--space-16)) 0 var(--space-16);
        min-height: 40vh;
    }
    
    .page-title {
        font-size: var(--font-size-4xl);
    }
    
    .page-description {
        font-size: var(--font-size-lg);
    }
    
    .filter-title {
        font-size: var(--font-size-lg);
    }
    
    .filter-buttons {
        gap: var(--space-2);
    }
    
    .filter-btn {
        padding: var(--space-2) var(--space-4);
        font-size: var(--font-size-xs);
        min-width: 70px;
    }
    
    .load-more-btn {
        min-width: 150px;
        padding: var(--space-2) var(--space-5);
        font-size: var(--font-size-xs);
        gap: var(--space-1);
    }
    
    .pagination-info {
        font-size: 11px;
        padding: var(--space-1) var(--space-2);
    }
    
    .load-more-section {
        padding: var(--space-8) var(--space-3);
    }
    
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: var(--space-3);
    }
    

    
    .view-btn {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-base);
    }
    
    .lightbox-nav {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-base);
    }
    
    .lightbox-prev {
        left: -50px;
    }
    
    .lightbox-next {
        right: -50px;
    }
    
    .lightbox-close {
        width: 40px;
        height: 40px;
        top: -50px;
        font-size: var(--font-size-lg);
    }
    
    .lightbox-meta {
        flex-direction: column;
        gap: var(--space-3);
        padding: 0 var(--space-2);
    }
    
    .lightbox-image {
        max-height: 60vh;
    }
}

@media (max-width: 480px) {
    .page-header {
        padding: calc(70px + var(--space-12)) 0 var(--space-12);
    }
    
    .page-title {
        font-size: var(--font-size-3xl);
    }
    
    .page-description {
        font-size: var(--font-size-base);
    }
    
    .gallery-section {
        padding: var(--space-24) 0;
    }
    
    .filter-group {
        margin-bottom: var(--space-8);
    }
    
    .filter-title {
        font-size: var(--font-size-base);
        margin-bottom: var(--space-4);
    }
    
    .filter-buttons {
        justify-content: center;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2);
    }
    
    .gallery-item {
        aspect-ratio: 16/9;
    }
    
    .image-year {
        font-size: var(--font-size-base);
    }
    
    .image-event {
        font-size: var(--font-size-sm);
    }
    
    .view-btn {
        width: 35px;
        height: 35px;
        font-size: var(--font-size-sm);
    }
    
    .lightbox-content {
        max-width: 95%;
        max-height: 95%;
    }
    
    .lightbox-image {
        max-height: 50vh;
    }
    
    .lightbox-nav {
        display: none;
    }
    
    .lightbox-controls {
        gap: var(--space-2);
    }
    
    .lightbox-control {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-sm);
    }
    
    .load-more-section {
        padding: var(--space-6) var(--space-2);
    }
    
    .load-more-btn {
        min-width: 130px;
        padding: var(--space-2) var(--space-4);
        font-size: 12px;
        gap: var(--space-1);
    }
    
    .pagination-info {
        font-size: 10px;
        padding: var(--space-1);
    }
    
    .header-bg-shapes .bg-shape {
        display: none;
    }
}