.prefs-overlay {
    position: fixed;
    z-index: 80;

    left: 50%;
    bottom: 5em;
    transform: translateX(-50%);

    width: min(50em, 80vw);
    height: min(40em, 60vh);

    background-color: var(--bg);
    border-radius: 1em;
    padding: 2em;
    overflow-y: auto;
}