body {
    background-color: black;
    color: white;
    text-align: center;
    margin: 0;
    padding: 0;
}

h1 {
    margin: 20px 0;
}

p {
    margin: 10px 0;
}

textarea {
    width: 30%;
    padding: 10px;
    border: none;
    background-color: #333;
    color: white;
}

input[type="text"] {
    padding: 10px;
    border: none;
    background-color: #333;
    color: white;
}

button {
    background-color: #007BFF;
    color: white;
    padding: 10px 20px;
    border: none;
    cursor: pointer;
}

button:disabled {
    background-color: #777;
    cursor: not-allowed;
}

.hidden {
    display: none;
}