body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
  color: white;
  text-align: center;
  font-family: "Segoe UI", Arial, sans-serif;
}

h1 {
  margin-top: 20px;
}

.info {
  margin: 10px;
  font-size: 18px;
}

canvas {
  background: black;
  border: 3px solid #00ffcc;
  margin-top: 10px;
}

button {
  margin-top: 15px;
  padding: 10px 25px;
  font-size: 16px;
  background: #00ffcc;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

button:hover {
  background: #00cc99;
}