#loader {
    position: fixed;
    inset: 0;
    background: black;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    transition: opacity 0.8s ease;
    pointer-events: all;
}

#loader.hidden {
    opacity: 0;
    pointer-events: none;
}

canvas#loader-canvas {
    width: 100vw;
    height: 100vh;
    display: block;
}