<div class="platform">
  <div class="plate"></div>
  <div class="plate"></div>
  <div class="panels">
    <div class="panel"></div>
    <div class="panel"></div>
    <div class="panel"></div>
    <div class="panel"></div>
    <div class="panel"></div>
    <div class="panel"></div>
    <div class="panel"></div>
    <div class="panel"></div>
    <div class="panel"></div>
    <div class="panel"></div>
    <div class="panel"></div>
    <div class="panel"></div>
    <div class="panel"></div>
    <div class="panel"></div>
    <div class="panel"></div>
    <div class="panel"></div>
  </div>
</div>

@import url('https://fonts.googleapis.com/css2?family=Courgette&display=swap');

*, *::before, *::after {
  padding: 0;
  margin: 0 auto;
  box-sizing: border-box;
}

$speed: 20s;
html, body {
  font-size: 32px;
}

body {
  font-family: 'Courgette', cursive;
  background-color: #000;
  background-image: radial-gradient(circle, #012, #000 15em);
  color: #fff;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  perspective: 75em;
  perspective-origin: 50% calc(50% - 5em);
  transform-style: preserve-3d;
}

.platform {
  position: relative;
  transform-style: preserve-3d;
  animation: platform $speed*0.4 infinite ease-in-out;

  @keyframes platform {
    0%, 100% { transform: translateY(-0.5em);}
    50% { transform: translateY(0.5em);}
  }
}

.plate {
  position: absolute;
  top: 50%; left: 50%;
  border-radius: 50%;
  transform-style: preserve-3d;

  &:nth-child(1) {
    width: 16em; height: 16em;
    background-image: radial-gradient(#444, #111);
    transform: translate(-50%, -50%) rotateX(90deg) translateZ(2em);
  }
  &:nth-child(2) {
    width: 14em; height: 14em;
    background-image: radial-gradient(#000, #222);
    transform: translate(-50%, -50%) rotateX(90deg) translateZ(-2em);
  }

  &::before {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 100%; height: 0.5em;
    background-image: linear-gradient(90deg, #222, #333, #111, #222);
    transform: translateX(-50%) rotateX(-90deg) translateZ(0.5em);
    transform-origin: top;
  }
  &::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 100%; height: 100%;
    background-image: linear-gradient(90deg, #222, #333, #111, #222);
    border-radius: 50%;
    transform: translate(-50%, -50%) translateZ(-0.5em);
  }
}

.panel {
  position: absolute;
  top: 50%; left: 50%;
  width: 3em; height: 3em;
  clip-path: polygon(0 0, 100% 0, 93.25% 100%, 6.75% 100%);
  background-color: #0005;
  overflow: hidden;
  animation: panalRotate $speed*3 infinite linear;

  @keyframes panalRotate {

    0%, 100% { opacity: 1; }
    50% { opacity: 0.1; }

    from { transform: translate(-50%, calc(-50% + 0.25em)) rotateY(0) translateZ(7em) rotateX(-15deg); }
    to { transform: translate(-50%, calc(-50% + 0.25em)) rotateY(360deg) translateZ(7em) rotateX(-15deg); }
  }

  $count: 16;
  @for $i from 0 to $count {
    &:nth-child(#{$i + 1}) {
      animation-delay: #{$speed / $count * $i * -3};

      &::after {
        animation-delay: #{$speed / $count * $i * -1};
      }
    }
  }

  &::after {
    position: absolute;
    top: 50%; left: 50%;
    content: "I'm a slow walker but I never walk backwards";
    font-weight: 700;
    font-size: 2em;
    white-space: nowrap;
    color: #0009;
    text-shadow:
      0 0 5px #0af,
      0 0 15px #0af,
      0 0 30px #0af;
    animation: textMove $speed infinite linear;
  }

  @keyframes textMove {
    from { transform: translate(2rem, -50%); }
    to { transform: translate(-42.64rem, -50%); }
  }
}