/* Gallery Styles */

/* Gallery Header */
.gallery-header {
    margin-bottom: var(--spacing-xl);
}

/* Gallery Filters */
.gallery-filters {
    background-color: var(--color-background-alt);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-large);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--color-border);
}

.filter-group {
    margin-bottom: var(--spacing-sm);
}

.filter-group:last-child {
    margin-bottom: 0;
}

.filter-label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
}

.filter-select {
    width: 100%;
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--color-border-dark);
    border-radius: var(--border-radius);
    background-color: var(--color-background);
    font-size: var(--font-size-base);
    color: var(--color-text);
    transition: border-color var(--transition-fast);
}

.filter-select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px rgba(231, 76, 60, 0.2);
}

/* Gallery Grid */
.gallery-grid {
    display: grid;
    gap: var(--spacing-md);
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    margin-bottom: var(--spacing-xl);
}

.gallery-item {
    position: relative;
    background-color: var(--color-background);
    border-radius: var(--border-radius-large);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: all var(--transition-medium);
    cursor: pointer;
}

.gallery-item:hover,
.gallery-item:focus-within {
    transform: translateY(-4px);
    box-shadow: var(--shadow-heavy);
}

.gallery-item:focus-within {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.gallery-thumbnail {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform var(--transition-medium);
}

.gallery-item:hover .gallery-thumbnail {
    transform: scale(1.05);
}

.gallery-info {
    padding: var(--spacing-sm);
}

.gallery-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
    line-height: var(--line-height-tight);
}

.gallery-meta {
    font-size: var(--font-size-small);
    color: var(--color-text-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.gallery-year {
    font-weight: 500;
}

.gallery-medium {
    font-style: italic;
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-medium);
}

.modal[aria-hidden="false"] {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background-color: var(--color-background);
    border-radius: var(--border-radius-large);
    max-width: 90vw;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: var(--shadow-heavy);
    display: flex;
    flex-direction: column;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-background-alt);
}

.modal-title {
    font-size: var(--font-size-large);
    margin: 0;
    color: var(--color-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    color: var(--color-text-light);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover,
.modal-close:focus {
    background-color: var(--color-accent);
    color: white;
    outline: none;
}

.modal-body {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    flex: 1;
}

.modal-image {
    width: 100%;
    height: auto;
    max-height: 60vh;
    object-fit: contain;
    background-color: var(--color-background-alt);
}

.modal-info {
    padding: var(--spacing-md);
    background-color: var(--color-background);
}

.artwork-year,
.artwork-medium {
    font-size: var(--font-size-small);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xs);
}

.artwork-description {
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text);
    margin-bottom: 0;
}

.modal-nav {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-md);
    background-color: var(--color-background-alt);
    border-top: 1px solid var(--color-border);
}

.nav-prev,
.nav-next {
    background-color: var(--color-primary);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
    min-width: 80px;
}

.nav-prev:hover,
.nav-prev:focus,
.nav-next:hover,
.nav-next:focus {
    background-color: var(--color-accent);
    outline: none;
    transform: translateY(-1px);
}

.nav-prev:disabled,
.nav-next:disabled {
    background-color: var(--color-border-dark);
    color: var(--color-text-light);
    cursor: not-allowed;
    transform: none;
}

/* Responsive Gallery Adjustments */

/* Small tablets (576px and up) */
@media (min-width: 576px) {
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: var(--spacing-lg);
    }
    
    .gallery-thumbnail {
        height: 250px;
    }
    
    .filter-group {
        display: flex;
        align-items: center;
        gap: var(--spacing-sm);
        margin-bottom: var(--spacing-md);
    }
    
    .filter-label {
        margin-bottom: 0;
        min-width: 80px;
    }
    
    .filter-select {
        width: auto;
        min-width: 150px;
    }
}

/* Tablets (768px and up) */
@media (min-width: 768px) {
    .gallery-filters {
        display: flex;
        gap: var(--spacing-lg);
        align-items: center;
        flex-wrap: wrap;
    }
    
    .filter-group {
        margin-bottom: 0;
        flex: 0 0 auto;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
    
    .gallery-thumbnail {
        height: 280px;
    }
    
    .modal-content {
        max-width: 80vw;
        max-height: 85vh;
    }
    
    .modal-body {
        flex-direction: row;
    }
    
    .modal-image {
        flex: 1;
        max-height: none;
        height: 100%;
    }
    
    .modal-info {
        flex: 0 0 300px;
        overflow-y: auto;
    }
}

/* Desktop (992px and up) */
@media (min-width: 992px) {
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
    
    .gallery-thumbnail {
        height: 300px;
    }
    
    .modal-content {
        max-width: 1000px;
        max-height: 80vh;
    }
}

/* Large desktop (1200px and up) */
@media (min-width: 1200px) {
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    }
}

/* Landscape orientation adjustments */
@media (orientation: landscape) and (max-height: 600px) {
    .modal-content {
        max-height: 95vh;
    }
    
    .modal-image {
        max-height: 50vh;
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    .gallery-item {
        transform: none;
    }
    
    .gallery-item:hover {
        transform: none;
    }
    
    .gallery-item:hover .gallery-thumbnail {
        transform: none;
    }
    
    .modal-close,
    .nav-prev,
    .nav-next {
        min-height: 44px;
        min-width: 44px;
    }
}

/* Loading and Error States */
.loading-indicator {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-light);
    font-style: italic;
}

.gallery-empty-state,
.gallery-error {
    text-align: center;
    padding: var(--spacing-xl);
    grid-column: 1 / -1;
}

.empty-state-content,
.gallery-error {
    max-width: 400px;
    margin: 0 auto;
}

.empty-state-content h3,
.gallery-error h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-large);
}

.empty-state-content p,
.gallery-error p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: var(--line-height-base);
}

.btn-clear-filters,
.btn-retry {
    background-color: var(--color-primary);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: var(--font-size-base);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.btn-clear-filters:hover,
.btn-clear-filters:focus,
.btn-retry:hover,
.btn-retry:focus {
    background-color: var(--color-accent);
    outline: none;
    transform: translateY(-1px);
}

/* Lazy Loading States */
.gallery-thumbnail.lazy-loading {
    background-color: var(--color-background-alt);
    opacity: 0.7;
}

.gallery-thumbnail.lazy-loaded {
    opacity: 1;
    transition: opacity var(--transition-medium);
}

/* Image Loading Animation */
@keyframes pulse {
    0% {
        opacity: 0.7;
    }
    50% {
        opacity: 0.4;
    }
    100% {
        opacity: 0.7;
    }
}

.gallery-thumbnail.lazy-loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Filter Results Announcement (for screen readers) */
.filter-results-announcement {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* Enhanced Touch Targets for Mobile */
@media (hover: none) and (pointer: coarse) {
    .filter-select {
        min-height: 44px;
        font-size: 16px; /* Prevents zoom on iOS */
    }
    
    .btn-clear-filters,
    .btn-retry {
        min-height: 44px;
        min-width: 120px;
        font-size: 16px;
    }
    
    .gallery-item {
        /* Ensure touch targets are large enough */
        min-height: 240px;
    }
}

/* Reduced Motion Preferences */
@media (prefers-reduced-motion: reduce) {
    .gallery-item,
    .gallery-thumbnail,
    .modal,
    .btn-clear-filters,
    .btn-retry {
        transition: none;
    }
    
    .gallery-thumbnail.lazy-loading {
        animation: none;
    }
    
    .gallery-item:hover {
        transform: none;
    }
    
    .gallery-item:hover .gallery-thumbnail {
        transform: none;
    }
}

/* High contrast mode adjustments */
@media (prefers-contrast: high) {
    .gallery-item {
        border: 2px solid var(--color-text);
    }
    
    .modal-content {
        border: 2px solid var(--color-text);
    }
    
    .btn-clear-filters,
    .btn-retry {
        border: 2px solid var(--color-text);
    }
}
/* Modal E
rror States */
.modal-error {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text);
}

.modal-error h3 {
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-large);
}

.modal-error p {
    margin-bottom: var(--spacing-lg);
    line-height: var(--line-height-base);
}

.modal-error .btn-retry {
    background-color: var(--color-primary);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: var(--font-size-base);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.modal-error .btn-retry:hover,
.modal-error .btn-retry:focus {
    background-color: var(--color-accent);
    outline: none;
    transform: translateY(-1px);
}

/* Modal Loading States */
.modal-image[style*="opacity: 0.5"] {
    position: relative;
}

.modal-image[style*="opacity: 0.5"]::after {
    content: "Loading...";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    font-size: var(--font-size-small);
}

/* Enhanced Modal Animations */
.modal {
    backdrop-filter: blur(0px);
    transition: all var(--transition-medium), backdrop-filter var(--transition-medium);
}

.modal[aria-hidden="false"] {
    backdrop-filter: blur(4px);
}

.modal-content {
    transform: scale(0.9);
    transition: transform var(--transition-medium);
}

.modal[aria-hidden="false"] .modal-content {
    transform: scale(1);
}

/* Improved Touch Targets */
@media (hover: none) and (pointer: coarse) {
    .modal-close {
        min-width: 48px;
        min-height: 48px;
        font-size: var(--font-size-xl);
    }
    
    .nav-prev,
    .nav-next {
        min-width: 60px;
        min-height: 48px;
        font-size: var(--font-size-large);
    }
}

/* Modal Position Indicator */
.modal-position {
    position: absolute;
    bottom: var(--spacing-sm);
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    font-size: var(--font-size-small);
    pointer-events: none;
}

/* Keyboard Navigation Indicators */
.modal:focus-within .nav-prev:focus,
.modal:focus-within .nav-next:focus {
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.3);
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .modal-overlay {
        background-color: rgba(0, 0, 0, 0.9);
    }
    
    .modal-content {
        border: 3px solid var(--color-text);
    }
    
    .nav-prev,
    .nav-next {
        border: 2px solid var(--color-text);
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    .modal,
    .modal-content {
        transition: none;
    }
    
    .modal {
        backdrop-filter: none;
    }
    
    .modal[aria-hidden="false"] {
        backdrop-filter: none;
    }
}