body {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 0;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            background-color: #f4f4f9;
        }

        .container {
            text-align: center;
            background: #ffffff;
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            width: 90%;
            max-width: 400px;
        }

        h1 {
            font-size: 1.5em;
            color: #333;
        }

        label {
            display: block;
            margin-top: 10px;
            font-weight: bold;
            color: #555;
        }

        input[type="file"], select, button {
            margin-top: 10px;
            width: 90%;
            padding: 10px;
            border: 1px solid #ccc;
            border-radius: 5px;
            font-size: 1em;
        }

        button {
            background-color: #007BFF;
            color: #fff;
            border: none;
            cursor: pointer;
            transition: background-color 0.3s;
        }

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

        button:active {
            background-color: #013d7e;
            translate: 1px 1px;
        }

        #downloadLink {
            display: block;
            margin-top: 20px;
            text-decoration: none;
            color: #007BFF;
            font-weight: bold;
        }

        #downloadLink:hover {
            text-decoration: underline;
        }