#trail-lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.85);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    display: none;
}

#trail-lightbox-overlay img {
    max-width: 90%;
    max-height: 90%;
    border: 3px solid white;
}

.trail-lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 2rem;
    color: white;
    background: rgba(0,0,0,0.4);
    padding: 0.5rem 1rem;
    cursor: pointer;
    z-index: 10000;
    user-select: none;
}

#trail-lightbox-prev {
    left: 10px;
}

#trail-lightbox-next {
    right: 10px;
}