:root {
    --boxColor: #0ff7;
    --rotateSpeed: 30s;
    --bounceSpeed: 1.5s;
    --cubeSpeed: 1.5s;
}

body {
    background-color: #000;
    min-height: 100vh;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 75px;
    perspective: 10em;
    perspective-origin: 50% calc(50% - 2.5em);
    transform-style:preserve-3d ;
}

.scene {
    position: relative;
    perspective: 10em 10em;
        perspective-origin: 50% calc(50% - 2.5em);
        transform-style:preserve-3d;

    animation:
        sceneRotate var(--rotateSpeed) infinite linear;
}

@keyframes sceneRotate {
    0% {
      transform: rotateY(0deg);
    }
    25% {
      transform: rotateY(60deg);
    }
    50% {
      transform: rotateY(0deg);
    }
    75% {
      transform: rotateY(-60deg);
    }
    100% {
      transform: rotateY(0deg);
    }
  }

.ball {
    width: 1em;
    height: 1em;
    border-radius: 50%;
    background: lightblue;
    position: absolute;
    left: -.5em;
    bottom: 1em;
    background-image: radial-gradient(circle at top,
            lightblue,
            #000);
    animation:
        sceneRotate var(--rotateSpeed) infinite linear reverse,
        ballBounce var(--bounceSpeed) infinite ease-out;

}

@keyframes ballBounce {
    0%, 100% {
        bottom: .6em;
    }

    50% {
        bottom: 2.5em;
        animation-timing-function: ease-in;
    }
}

.ballshadow {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(#0007, #0000 50%);
    animation:
        ballShadow var(--bounceSpeed) infinite ease-out;

}

@keyframes ballShadow {
    0%,  100% {
        transfrom: scale(1);
        opacity: 1;
    }

    60% {
        transfrom: scale(2);
        opacity: 0.5;
        animation-time-function: ease-in;
    }
}


.cube {
    width: 2em;
    height: 2em;
    position: absolute;
    bottom: -1em;
    left: -1em;
    animation: cubeHeight var(--cubeSpeed) infinite ;
    opacity: 0.5;
    perspective: 10em;
    perspective-origin: 50% calc(50% - 2.5em);
    transform-style: preserve-3d;
  

        
}
@keyframes cubeHeight{
        0%, 100% {
            height:1.5em;
        }
        

       60% {
           height:2em;
           
        }
    }

    .left, .right, .front, .back {
        position: absolute;
        width: 100%;
        height: 100%;
        background: var(--boxColor);
        box-shadow: 0 0 0.5em #000a inset;
        perspective: 10em 10em;
        perspective-origin: 50% calc(50% - 2.5em);
        transform-style:preserve-3d;
        
    }
    
    .front {
        transform: translateZ(1em);
        perspective: 10em;
    perspective-origin: 50% calc(50% - 2.5em);
    transform-style: preserve-3d;
    }

    .right {
        transform: rotateY(90deg) translateZ(1em);
        perspective: 10em;
    perspective-origin: 50% calc(50% - 2.5em);
    transform-style: preserve-3d;
    }

    .back {
        transform:t rotateY(180deg) ranslateZ(1em);
        perspective: 10em;
    perspective-origin: 50% calc(50% - 2.5em);
    transform-style: preserve-3d;
    }

    .left {
        transform: rotateY(270deg) translateZ(1em);
        perspective: 10em;
    perspective-origin: 50% calc(50% - 2.5em);
    transform-style: preserve-3d;
    }

    .top {
        position: absolute;
        width: 2em;
        height: 2em;
        background: var(--boxColor);
        transform: translateY(-50%) rotateX(90deg);
        box-shadow: 0 0 0.5em #000a inset;
        perspective: 10em 10em;
        perspective-origin: 50% calc(50% - 2.5em);
        transform-style:preserve-3d;
    }

    .bottom {
        position: absolute;
        width: 2em;
        height: 2em;
        background: #0007;
        bottom: 0;
        transform: translateY(50%) rotateX(90deg);
        box-shadow: 0 0 0.5em #000;
        perspective: 10em 10em;
        perspective-origin: 50% calc(50% - 2.5em);
        transform-style:preserve-3d;
    }






.floor {
    position: absolute;
    top: 1em;
    transform: translate(-50%, -50%) rotateX(90deg);
    width: 15em;
    height: 15em;
    background-image:
        radial-gradient(#0000, #000 75%),
        repeating-conic-gradient(from 45deg, #111 0deg, #222 90deg 180deg);
    background-size: 100%, 1em 1em;
    perspective: 10em;
    perspective-origin: 50% calc(50% - 2.5em);
    transform-style: preserve-3d;
}