body {
  font-family: Arial, sans-serif;
  text-align: center;
  background-color: #eef3f8;
  margin: 0;
  padding: 20px;
}

h1 {
  color: #003366;
}

#controls {
  margin-bottom: 20px;
}

button {
  background-color: #007acc;
  color: white;
  border: none;
  padding: 10px 15px;
  margin: 5px;
  cursor: pointer;
  border-radius: 4px;
}

button:hover {
  background-color: #005fa3;
}

canvas {
  border: 2px solid #003366;
  background-color: white;
}

footer {
  margin-top: 20px;
  color: #555;
  font-size: 0.9em;
}