/* lightbox.css */

.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 280px;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.98);
    z-index: 1000;
}

.lightbox.active {
    display: block;
}

.lightbox-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 95%;
    height: 95%;
    pointer-events: auto;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    display: block;
    pointer-events: none;
}

.lightbox-content video {
    max-width: 100%;
    max-height: 100%;
    pointer-events: auto;
}

.lightbox-content .model-viewer {
    pointer-events: auto;
}

.close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    color: #fff;
    font-size: 3rem;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.3s;
    line-height: 1;
    user-select: none;
    z-index: 3;
}

.close:hover {
    opacity: 1;
}

.nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 3rem;
    color: #fff;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.3s;
    user-select: none;
    line-height: 1;
    z-index: 3;
}

.nav-btn:hover {
    opacity: 1;
}

.prev { left: 2rem; }
.next { right: 2rem; }

body.light-mode .close,
body.light-mode .nav-btn {
    color: #222;
}

body.light-mode .lightbox {
    background: rgba(255,255,255,0.98);
}

@media (max-width: 768px) {
    .nav-btn {
        font-size: 1rem;
    }
    
    .prev { left: 1rem; }
    .next { right: 1rem; }

    .lightbox {
        left: 0;
        top: 0;
    }
    
    .lightbox-content {
        width: 95%;
        height: calc(100vh - var(--menu-height, 120px));
        top: calc(50% + var(--menu-height, 120px) / 2);
        transform: translate(-50%, -50%);
    }
}