body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    text-align: center;
    margin: 0;
    padding: 0;
}

h1 {
    margin-top: 20px;
    font-size: 24px;
}

input[type="file"] {
    margin-top: 20px;
    padding: 10px;
    cursor: pointer;
}

button {
    padding: 10px 15px;
    margin-top: 20px;
    cursor: pointer;
    background-color: #007bff;
    color: white;
    border: none;
    font-size: 16px;
}

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

#status {
    margin-top: 20px;
    font-size: 18px;
    color: green;
}

#pdf-viewer-container {
    margin-top: 20px;
    text-align: center;
}

canvas {
    border: 1px solid #ccc;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    background-color: #fff;
}