.root {
  position: absolute;
  inset: 0;
  line-height: 1;
  pointer-events: none;
}

.progress {
  --_progress: 0;

  z-index: 0;
  font-size: 0.75rem;
  opacity: 0.8;
  overflow: hidden;
}

.button {
  font-size: 0.5rem;
}

.symbol {
  --_duration-shift: 0s;
  --_shift-x: 0;
  --_shift-y: 0;

  position: absolute;

  width: 0.5rem;
  height: 0.5rem;

  animation: sparkle 5s infinite;
  animation-delay: var(--_duration-shift);
}

@keyframes sparkle {
  0% {
    opacity: 0;
    transform: translate(0, 0);
  }
  15% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate(var(--_shift-x), var(--_shift-y));
  }
}