body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    background-color: #f5f5f5;
    color: #333;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

h1 {
    text-align: center;
    margin-bottom: 20px;
}

textarea {
    width: 100%;
    height: 200px;
    border: 1px solid #ccc;
    border-radius: 4px;
    padding: 10px;
    font-size: 14px;
    resize: vertical;
}

button {
    display: block;
    width: 100%;
    padding: 10px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    margin-top: 10px;
}

button:hover {
    background-color: #0056b3;
}

.output-container {
    margin-top: 20px;
    background-color: #f8f9fa;
    border: 1px solid #ccc;
    border-radius: 4px;
    padding: 10px;
}

pre {
    white-space: pre-wrap;
    word-wrap: break-word;
}