body {
    font-family: Arial, sans-serif;
    background: #fff;
    color: #000;
    padding: 20px;
    transition: background 0.3s, color 0.3s;
}

body.dark-theme {
    background: #121212;
    color: #f0f0f0;
}

textarea {
    width: 100%;
    height: 100px;
    margin-top: 10px;
}

button {
    margin-top: 10px;
    padding: 10px;
    cursor: pointer;
}

#responseArea {
    margin-top: 20px;
    padding: 10px;
    border: 1px solid #ccc;
}

ul {
    padding-left: 20px;
}

.app-container {
    max-width: 600px;
    margin: auto;
}