body {
    font-family: Arial, sans-serif;
    text-align: center;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
    color: #333;
}



input {
    padding: 10px;
    width: 80%;
    max-width: 400px;
    font-size: 16px;
    margin-bottom: 20px;
    border: 1px solid #ccc;
    border-radius: 5px;
    outline: none;
}

button {
    padding: 10px 20px;
    font-size: 16px;
    color: #fff;
    background-color: #3498db;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    margin: 10px 5px;
}

button:hover {
    background-color: #2980b9;
}

canvas {
    margin-top: 20px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

#downloadBtn {
    display: none;
}