body {
  font-family: Arial, sans-serif;
  background-color: #f8f9fa;
  color: #333;
  margin: 0;
  padding: 0;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
}

h1 {
  color: #0056b3;
  text-align: center;
}

p {
  font-size: 18px;
  line-height: 1.6;
}

.error-message {
  color: red;
  font-weight: bold;
}