body {
  font-family: Arial, sans-serif;
  text-align: center;
  background: #f7f9fc;
  margin: 0;
  padding: 0;
}

h1 {
  background: #004aad;
  color: white;
  padding: 15px;
  margin: 0 0 10px 0;
}

.controls {
  margin-bottom: 10px;
}

button {
  background: #004aad;
  color: white;
  border: none;
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  margin: 5px;
}

button:hover {
  background: #0066ff;
}

canvas {
  border: 2px solid #004aad;
  border-radius: 8px;
  background-color: white;
}