body {
    font-family: Arial, sans-serif;
    padding: 20px;
    max-width: 400px;
    margin: auto;
}

h1 {
    text-align: center;
}

form {
    display: flex;
    flex-direction: column;
}

input {
    padding: 5px;
    margin-bottom: 10px;
}

button {
    padding: 10px;
    cursor: pointer;
}

#message {
    font-weight: bold;
    text-align: center;
    margin-top: 15px;
}