/* Lightbox Styles */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

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

.lightbox-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    cursor: pointer;
}

.lightbox-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    z-index: 10;
}

.lightbox-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: rgba(30, 41, 59, 0.8);
    border-bottom: 1px solid rgba(51, 65, 85, 0.3);
}

.lightbox-counter {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.lightbox-counter .current-image {
    color: var(--primary);
    font-weight: 700;
}

.lightbox-controls {
    display: flex;
    gap: 0.75rem;
}

.lightbox-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: rgba(30, 41, 59, 0.8);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.875rem;
    white-space: nowrap;
}

.lightbox-btn:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: scale(1.05);
}

.lightbox-btn i {
    font-size: 1rem;
    flex-shrink: 0;
}

.btn-text {
    font-weight: 500;
    font-size: 0.875rem;
}

.lightbox-close {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--error);
}

.lightbox-close:hover {
    background: var(--error);
    color: white;
}

.lightbox-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 60px;
    height: 60px;
    background: rgba(30, 41, 59, 0.9);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 100;
    font-size: 1.25rem;
}

.lightbox-nav:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-50%) scale(1.1);
}

.lightbox-nav.prev {
    left: 2rem;
}

.lightbox-nav.next {
    right: 2rem;
}

.lightbox-image-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 90%;
    height: 90%;
    cursor: default;
    overflow: hidden;
}

.lightbox-image-container:active {
    cursor: grabbing;
}

#lightboxImage {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-lg);
    transition: transform var(--transition-fast);
    transform-origin: center;
    display: block;
}

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

.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid rgba(99, 102, 241, 0.3);
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.lightbox-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: rgba(30, 41, 59, 0.8);
    border-top: 1px solid rgba(51, 65, 85, 0.3);
}

.image-info {
    flex: 1;
}

.image-title {
    color: var(--text-primary);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    background: none;
    -webkit-text-fill-color: var(--text-primary);
}

.image-metadata {
    display: flex;
    gap: 1rem;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.lightbox-zoom-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.zoom-btn {
    width: 40px;
    height: 40px;
    background: rgba(30, 41, 59, 0.8);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.875rem;
}

.zoom-btn:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: scale(1.05);
}

.zoom-btn i {
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .lightbox-header {
        padding: 0.75rem 1rem;
    }
    
    .lightbox-controls {
        gap: 0.5rem;
    }
    
    .lightbox-btn {
        padding: 0.5rem 0.75rem;
        font-size: 0.8rem;
    }
    
    .btn-text {
        font-size: 0.8rem;
    }
    
    .lightbox-footer {
        padding: 0.75rem 1rem;
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .image-metadata {
        flex-direction: column;
        gap: 0.25rem;
    }
    
    .lightbox-nav {
        width: 48px;
        height: 48px;
        font-size: 1rem;
    }
    
    .lightbox-nav.prev {
        left: 1rem;
    }
    
    .lightbox-nav.next {
        right: 1rem;
    }
}

@media (max-width: 480px) {
    .lightbox-controls {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .lightbox-btn {
        padding: 0.5rem;
        min-width: auto;
    }
    
    .btn-text {
        display: none; /* Hide text on very small screens */
    }
    
    .lightbox-btn {
        width: 40px;
        height: 40px;
        justify-content: center;
    }
}

/* Favorites Animation */
.lightbox-btn.favorite-active {
    color: #ef4444;
    animation: heartBeat 0.6s ease-in-out;
}

@keyframes heartBeat {
    0% { transform: scale(1); }
    25% { transform: scale(1.2); }
    50% { transform: scale(1); }
    75% { transform: scale(1.1); }
    100% { transform: scale(1); }
}