body {
    font-family: Arial, sans-serif;
    background: #f4f4f4;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.container {
    background: #fff;
    padding: 20px;
    border-radius: 6px;
    box-shadow: 0px 0px 10px rgba(0,0,0,0.1);
    width: 400px;
    text-align: center;
}

textarea, input {
    width: 100%;
    margin-bottom: 10px;
    padding: 10px;
}

button {
    padding: 10px 20px;
    cursor: pointer;
    background: #007BFF;
    color: #fff;
    border: none;
    border-radius: 4px;
}

button:hover {
    background: #0056b3;
}

pre {
    background: #eee;
    padding: 10px;
    margin-top: 10px;
    text-align: left;
}