body {
  margin: 0;
  padding: 0;
  background: #0b110d;
  overflow-x: hidden;
  height: 400vh;
}

canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  pointer-events: auto;
}

.instruction {
  position: fixed;
  bottom: 40px;
  width: 100%;
  text-align: center;
  color: #2b7fff;
  z-index: 2;
  font-family: ui-monospace, "Cascadia Code", monospace;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 2px;
  animation: pulse 2s infinite ease-in-out;
  pointer-events: none;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.4;
    transform: translateY(0);
  }
  50% {
    opacity: 1;
    transform: translateY(-5px);
  }
}