.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.85);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.lightbox img {
    max-width: 90vw;
    max-height: 90vh;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.5);
}
.lightbox img {
    transition: transform .25s ease, opacity .25s ease;
}