body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
  margin: 0;
  padding: 0;
}

.container {
  width: 100%;
  max-width: 500px;
  margin: 50px auto;
  background-color: white;
  padding: 20px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
}

h2 {
  text-align: center;
  margin-bottom: 20px;
}

.input-group {
  margin-bottom: 20px;
}

label {
  display: block;
  font-size: 16px;
  margin-bottom: 5px;
}

input {
  width: 100%;
  padding: 10px;
  font-size: 16px;
  border: 2px solid #ccc;
  border-radius: 5px;
}

input:focus {
  border-color: #4caf50;
}

button {
  width: 100%;
  padding: 10px;
  background-color: #4caf50;
  color: white;
  font-size: 16px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

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

.error {
  color: red;
  font-size: 12px;
  margin-top: 5px;
}