body {
    margin: 0;
    padding: 0;
    height: 100vh;
    overflow: hidden;
    position: relative;
    background: linear-gradient(to top, #23a7fc, #c1f8fd);
    
}
/* ---------- FOR SETTING BACKGROUND (See level.js) ---------- */
body::before {
    content: "";
    position: absolute;
    inset: 0;

    background-image: url("/assets/images/background.jpg");
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;

    filter: blur(6px) brightness(0.8);
    transform: translateX(var(--bg-x)) scale(1.1);
    will-change: transform;
    
    z-index: 0;
}

canvas {
    display: block;
    width: 100vw;
    height: 100vh;
    position: relative;
    z-index: 1;
    background: transparent;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    -webkit-tap-highlight-color: transparent;
}