body {
            font-family: Arial, sans-serif;
            background-color: #f4f4f4;
            margin: 0;
            padding: 20px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: white;
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
            display: flex;
            justify-content: space-between;
        }
        .left-panel, .right-panel {
            width: 30%;
        }
        input {
            width: 210%;
            padding: 10px;
            margin: 10px 0;
            border: 1px solid #ccc;
            border-radius: 5px;
        }
        button {
            background-color: #28a745;
            color: white;
            border: none;
            padding: 10px 15px;
            border-radius: 5px;
            cursor: pointer;
            width: 100%;
        }
        button:hover {
            background-color: #218838;
        }
        .qr-container {
            margin-top: 20px;
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        .qr-display {
            background: white;
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
            text-align: center;
        }
        .qr-display canvas {
            margin-top: 10px;
        }
        .qr-display img {
            margin-left: 50px;
            width: 200px;
            height: 200px;
            display: block;
        }