/**
 * FOPT Image Lightbox - Custom Bootstrap-based Lightbox
 * Optimiert für Projekt-Bildergalerien
 */

.lightbox-modal .modal-dialog {
    max-width: 95vw;
    margin: 1.75rem auto;
}

.lightbox-modal .modal-content {
    background-color: rgba(0, 0, 0, 0.95);
    border: none;
}

.lightbox-modal .modal-body {
    padding: 0;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80vh;
}

.lightbox-modal img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 4px;
}

.lightbox-modal .btn-close {
    position: absolute;
    top: 15px;
    right: 15px;
    z-index: 1050;
    background-color: rgba(255, 255, 255, 0.9);
    opacity: 1;
    padding: 0.5rem;
    border-radius: 50%;
    width: 40px;
    height: 40px;
}

.lightbox-modal .btn-close:hover {
    background-color: #fff;
    transform: scale(1.1);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1049;
    background-color: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.lightbox-nav:hover {
    background-color: #fff;
    transform: translateY(-50%) scale(1.1);
}

.lightbox-nav-prev {
    left: 20px;
}

.lightbox-nav-next {
    right: 20px;
}

.lightbox-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: #fff;
    padding: 20px;
    z-index: 1048;
}

.lightbox-info h5 {
    color: #fff;
    margin-bottom: 0.5rem;
}

.lightbox-info p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0.25rem;
    font-size: 0.9rem;
}

.lightbox-counter {
    position: absolute;
    top: 20px;
    left: 20px;
    background-color: rgba(0, 0, 0, 0.7);
    color: #fff;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    z-index: 1048;
}

/* Loading Spinner */
.lightbox-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
}

.lightbox-spinner {
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Keyboard Navigation Hint */
.lightbox-hint {
    position: absolute;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(0, 0, 0, 0.7);
    color: #fff;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: 1048;
}

.lightbox-hint.show {
    opacity: 1;
}

/* Responsive */
@media (max-width: 768px) {
    .lightbox-modal .modal-dialog {
        margin: 0.5rem;
    }
    
    .lightbox-modal .modal-body {
        min-height: 70vh;
    }
    
    .lightbox-nav {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .lightbox-nav-prev {
        left: 10px;
    }
    
    .lightbox-nav-next {
        right: 10px;
    }
    
    .lightbox-info {
        padding: 15px;
    }
}