body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f0f0f0;
}

.container {
    text-align: center;
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

input[type="text"] {
    padding: 10px;
    width: 300px;
    margin-bottom: 20px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

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

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

#qrcode {
    margin-top: 20px;
    margin-left: 40px;
    margin-bottom: 20px;
    display: flex;
    justify-content: center; /* Center horizontally */
    align-items: center;    /* Center vertically */
    width: 400px;           /* Set the width of the QR code container */
    height: 400px;          /* Set the height of the QR code container */
    position: relative;     /* Ensure the QR code can be centered within this container */
}

#qrcode canvas {
    display: block;         /* Remove extra space caused by inline display */
    margin: auto;           /* Center canvas inside the container */
}