/* Gallery Specific Styles */

/* Header Navigation */
.header {
    position: sticky;
    top: 0;
    background: var(--color-bg);
    z-index: 100;
    padding: var(--space-lg) 0;
    border-bottom: 1px solid var(--color-border);
}

.header__navigation {
    margin-bottom: var(--space-lg);
}

.header__back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    backdrop-filter: blur(10px);
}

.header__back-link:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: white;
}

.header__stats {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-sm);
    flex-wrap: wrap;
}

.header__stat {
    background: var(--color-surface);
    backdrop-filter: blur(10px);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

/* Gallery Controls */
.gallery-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
    gap: var(--space-md);
    flex-wrap: wrap;
}

.gallery-controls__info {
    display: flex;
    align-items: center;
}

.gallery-controls__count {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    background: var(--color-surface);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

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

.gallery-grid__loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--space-2xl);
    color: var(--color-text-secondary);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top: 3px solid var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-md);
}

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

/* Gallery Item */
.gallery-item {
    background: var(--color-surface);
    backdrop-filter: blur(20px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease forwards;
}

.gallery-item.loaded {
    opacity: 1;
    transform: translateY(0);
}

.gallery-item:hover {
    transform: translateY(-4px);
    border-color: var(--color-primary);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.gallery-item__image-container {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1 / 1;
}

.gallery-item__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.gallery-item__overlay {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.7));
    opacity: 0;
    transition: opacity var(--transition-normal);
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
    padding: var(--space-md);
}

.gallery-item:hover .gallery-item__overlay {
    opacity: 1;
}

.gallery-item__view-btn {
    background: var(--color-primary);
    color: white;
    border: none;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.gallery-item__view-btn:hover {
    background: var(--color-primary-dark);
}

.gallery-item__content {
    padding: var(--space-md);
}

.gallery-item__prompt-container {
    max-height: 120px;
    overflow-y: auto;
    margin-bottom: var(--space-md);
}

.gallery-item__prompt {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
    margin: 0;
}

/* Scrollbar Styling */
.gallery-item__prompt-container::-webkit-scrollbar {
    width: 4px;
}

.gallery-item__prompt-container::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
    border-radius: 2px;
}

.gallery-item__prompt-container::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 2px;
}

.gallery-item__prompt-container::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary-dark);
}

.gallery-item__actions {
    display: flex;
    gap: var(--space-sm);
}

.gallery-item__copy-btn {
    flex: 1;
    background: linear-gradient(
        135deg,
        var(--color-primary),
        var(--color-secondary)
    );
    color: white;
    border: none;
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
}

.gallery-item__copy-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.gallery-item__copy-btn:active {
    transform: translateY(0);
}

.gallery-item__copy-btn.copied {
    background: var(--color-surface);
    color: var(--color-accent);
}

.gallery-item__copy-btn.copied::after {
    content: "✓";
    font-weight: bold;
}

/* Load More */
.gallery-load-more {
    text-align: center;
    margin-top: var(--space-xl);
}

.gallery-load-more__btn {
    background: linear-gradient(
        135deg,
        var(--color-primary),
        var(--color-secondary)
    );
    color: white;
    border: none;
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.gallery-load-more__btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
}

.gallery-load-more__btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Lightbox */
.lightbox {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--space-md);
}

.lightbox[aria-hidden="false"] {
    display: flex;
}

.lightbox__overlay {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.lightbox__content {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    max-width: 90vw;
    max-height: 90vh;
    width: 1000px;
    display: flex;
    overflow: hidden;
    position: relative;
    z-index: 1001;
}

.lightbox__close {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.5rem;
    z-index: 1002;
    transition: all var(--transition-fast);
}

.lightbox__close:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.lightbox__image-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
    min-height: 400px;
}

.lightbox__image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.lightbox__info {
    width: 400px;
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.lightbox__title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
}

.lightbox__prompt-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.lightbox__prompt {
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin: 0;
    flex: 1;
}

.lightbox__copy-btn {
    background: linear-gradient(
        135deg,
        var(--color-primary),
        var(--color-secondary)
    );
    color: white;
    border: none;
    padding: var(--space-md);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lightbox__copy-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.lightbox__copy-btn.copied {
    background: var(--color-surface);
    color: var(--color-accent);
}

.lightbox__copy-btn.copied::after {
    content: " ✓ کپی شد";
}

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

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

    .lightbox__content {
        flex-direction: column;
        width: 95vw;
        height: 95vh;
    }

    .lightbox__info {
        width: 100%;
        max-height: 40%;
    }

    .lightbox__image-container {
        min-height: 300px;
    }
}

@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: var(--space-sm);
    }

    .gallery-controls {
        flex-direction: column;
        align-items: stretch;
    }

    .header__stats {
        justify-content: center;
    }

    .lightbox__info {
        padding: var(--space-lg);
    }

    .lightbox__title {
        font-size: 1.25rem;
    }
}

@media (max-width: 480px) {
    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .gallery-item__actions {
        flex-direction: column;
    }

    .lightbox {
        padding: var(--space-sm);
    }

    .lightbox__content {
        width: 100vw;
        height: 100vh;
        border-radius: 0;
    }

    .lightbox__info {
        padding: var(--space-md);
    }

    .header__title {
        font-size: 1.75rem;
    }

    .header__subtitle {
        font-size: 1rem;
    }
}

/* Infinite Scroll Styles */
.infinite-scroll-loader {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl);
    gap: var(--space-md);
}

.infinite-scroll-loader__spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(99, 102, 241, 0.1);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.infinite-scroll-loader__text {
    color: var(--color-text-secondary);
    font-size: 1rem;
    font-weight: 500;
}

.infinite-scroll-end {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl);
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.infinite-scroll-end i {
    font-size: 3rem;
    color: var(--color-primary);
}

.infinite-scroll-end p {
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    font-weight: 500;
}

/* Hide load more button when infinite scroll is active */
#loadMoreContainer.hidden {
    display: none;
}

/* No Results State */
.gallery-grid__no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--space-2xl);
    color: var(--color-text-secondary);
}

.gallery-grid__no-results-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    opacity: 0.5;
}

/* Error State */
.gallery-grid__error {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--space-2xl);
    color: var(--color-text-secondary);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.gallery-grid__error-icon {
    font-size: 2rem;
    margin-bottom: var(--space-md);
    color: #ef4444;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    .gallery-item,
    .gallery-item__image,
    .gallery-item__overlay,
    .gallery-item__copy-btn,
    .gallery-load-more__btn,
    .lightbox__copy-btn {
        transition: none;
        animation: none;
    }
}

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

.lightbox__content:focus {
    outline: none;
}