body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background: radial-gradient(circle at center, #0a0a0a 0%, #1c1c1c 100%);
  color: white;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100vh;
  justify-content: center;
  overflow: hidden;
}

h1 {
  text-shadow: 0 0 20px cyan;
}

canvas {
  background: linear-gradient(145deg, #141414, #222);
  border: 2px solid cyan;
  border-radius: 12px;
  box-shadow: 0 0 30px cyan;
}

.controls {
  margin-top: 15px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

button {
  background: black;
  border: 2px solid cyan;
  color: cyan;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 16px;
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  background: cyan;
  color: black;
  box-shadow: 0 0 15px cyan;
}