Гонки за амебой по css grid ячейкам

body {
  background: #000;
  height: 100vh;
  overflow: hidden;
}

.container {
  position: relative;
  display: grid;
  grid-template-rows: 10vh 10vh 10vh 10vh 10vh 10vh 10vh 10vh 10vh 10vh;
  grid-template-columns: 5vw 5vw 5vw 5vw 5vw 5vw 5vw 5vw 5vw 5vw 5vw 5vw 5vw 5vw 5vw 5vw 5vw 5vw 5vw 5vw;
}

.trigger {
  @for $i from 1 through 10 {
    @for $j from 1 through 20 {
      $key: ($i - 1) * 20 + $j;
      &:nth-child(#{$key}) {
        &:hover ~ .monitor .ball {
          top: ($i - 1) * 10% + 5%;
          left: ($j - 1) * 5% + 2.5%;
        }
      }
    }
  }
}

.monitor {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #000;
  pointer-events: none;
  filter: blur(20px) contrast(30);
}

.ball {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100px;
  height: 300px;
  background: #fff;
  border-radius: 100%;
  transform: translate(-50%, -50%);
  transition-timing-function: cubic-bezier(0.330, 1.700, 0.510, 0.820);
  mix-blend-mode: screen;
  
  &::before {
    content: '';
    position: absolute;
    background: #fff;
    border-radius: 100%;
  }
  
  @for $i from 1 through 10 {
    &:nth-child(#{$i}) {
      transition-duration: 300ms + 200ms * $i;
      animation: rotate random(3000) + 3000ms -6000ms linear infinite;
      background: rgba(random(255), 255, 255, 1);
      
      &::before {
        width: random(50) + 50px;
        height: random(50) + 50px;
        animation: slide random(4000) + 4000ms -8000ms ease-in-out infinite alternate;
      }
    }
  }
}

@keyframes rotate {
  0% {
    transform: translate(-50%, -50%) rotateZ(0deg);
  }
  
  100% {
    transform: translate(-50%, -50%) rotateZ(360deg);
  }
}

@keyframes slide {
  0% {
    transform: translateX(-150px);
  }
  
  100% {
    transform: translateX(300px);
  }
}