body {
  margin: 0;
  background: radial-gradient(circle at center, #111 30%, #000);
  color: #fff;
  font-family: "Poppins", sans-serif;
  text-align: center;
  height: 100vh;
  overflow: hidden;
}

h1 {
  margin-top: 20px;
  font-size: 2rem;
  text-shadow: 0 0 10px #0ff;
}

.subtitle {
  color: #ccc;
  margin-bottom: 10px;
}

.controls {
  margin: 10px auto;
}

button {
  background: linear-gradient(45deg, #00f5ff, #0078ff);
  color: white;
  border: none;
  padding: 10px 20px;
  margin: 5px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.3s ease;
  box-shadow: 0 0 10px #00f5ff;
}

button:hover {
  transform: scale(1.1);
  box-shadow: 0 0 20px #00f5ff, 0 0 40px #00f5ff;
}

canvas {
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid #00f5ff;
  border-radius: 15px;
  margin-top: 10px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}