.diallinx-qr-generator {
    max-width: 500px;
    margin: 0 auto;
    padding: 20px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}
.diallinx-qr-generator h2 {
    text-align: center;
}
#qrPreview canvas {
    border: 1px solid #ccc;
    margin-top: 10px;
}
button {
    padding: 8px 16px;
    background-color: #0073aa;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}
button:hover {
    background-color: #005a8e;
}