body {
  font-family: Arial, sans-serif;
  background: #f4f4f4;
  padding: 20px;
}

.container {
  max-width: 400px;
  margin: auto;
  background: white;
  padding: 20px;
  border-radius: 8px;
}

label {
  display: block;
  margin-bottom: 10px;
}

input, select, button {
  width: 100%;
  padding: 8px;
  margin-top: 5px;
}

button {
  background: #4CAF50;
  color: white;
  border: none;
  cursor: pointer;
}

button:hover {
  background: #45a049;
}

.hidden {
  display: none;
}