body {
    background-color: lightblue;
    font-family: Arial, Helvetica, sans-serif;
}

h1 {
    color: darkblue;
    text-align: center;
}

form {
    background-color: white;
    padding: 20px;
    margin: auto;
    width: 300px;
    border-radius: 10px;
}

input {
    width: 100%;
    padding: 8px;
    margin-bottom: 10px;
    border: 1px solid lightgray;
    border-radius: 5px;
}

button {
    width: 100%;
    padding: 10px;
    background-color: green;
    color: white;
    border: none;
    border-radius: 5px;
}

.error {
    color: red;
    font-size: 12px;
    font-weight: bold;
}