body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f9;
  margin: 0;
  padding: 0;
  color: #333;
}

.container {
  max-width: 600px;
  margin: 50px auto;
  background: white;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1,
h2 {
  text-align: center;
}

label {
  display: block;
  margin: 10px 0;
}

button {
  margin-top: 10px;
  padding: 10px 15px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  background-color: #4caf50;
  color: white;
  font-size: 16px;
}

button:hover {
  background-color: #45a049;
}

.hidden {
  display: none;
}

canvas {
  display: block;
  margin: 20px auto;
  border: 1px solid #ddd;
  background-color: #fafafa;
}

#alignment-graph {
  width: 100%; /* Full width of the container */
  height: auto; /* Auto height based on the width */
  max-width: 600px; /* Max width to avoid overly large canvas */
  margin: 0 auto; /* Center the canvas */
  display: block; /* Make sure it's a block element */
}