:root {
  --tile: 28px;
}

.dot-bg {
  background-image: radial-gradient(circle, var(--color-green-500) 0.5px, transparent 1.8px);
  background-size: var(--tile) var(--tile);
  background-position: calc(var(--tile) / 2) calc(var(--tile) / 2);
}

.spark {
  position: absolute;
  width: 2px;
  height: 2px;
  border-radius: 9999px;
  background: var(--color-green-400);
  box-shadow: 0 0 8px 2px var(--color-green-200);
  opacity: 0;
  pointer-events: none;
  animation-iteration-count: infinite;
  animation-timing-function: linear;
  will-change: transform, opacity;
}

.dark\:spark {
  &:where([data-theme="all_hands-dark"], [data-theme="all_hands-dark"] *) {
    background: var(--color-green-200);
    box-shadow: 0 0 8px 2px var(--color-green-400);
  }
}

.spark-h {
  left: 0;
  animation-name: spark-h-move;
}
.spark-v {
  top: 0;
  animation-name: spark-v-move;
}

@keyframes spark-h-move {
  0% {
    transform: translateX(-10vw);
    opacity: 0;
  }
  10%,
  90% {
    opacity: 1;
  }
  100% {
    transform: translateX(110vw);
    opacity: 0;
  }
}
@keyframes spark-v-move {
  0% {
    transform: translateY(-10vh);
    opacity: 0;
  }
  10%,
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(110vh);
    opacity: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .spark {
    display: none;
  }
}