#vanta-fallback {
    position: fixed;
    width: 100%;
    height: 100vh;
    top: 0;
    left: 0;
    z-index: -2;
    background-color: #000;
}

#vanta-bg {
    position: fixed;
    width: 100%;
    height: 100vh;
    top: 0;
    left: 0;
    z-index: -1;
    background-color: transparent;
    transition: opacity 1s ease;
    opacity: 1;
}

#vanta-bg.fade-out {
    opacity: 0;
}