body {
            font-family: Arial, sans-serif;
            background-color: #f5f5f5;
            margin: 0;
            padding: 0;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            flex-direction: column;
        }
        .container {
            text-align: center;
            background-color: white;
            padding: 30px;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            max-width: 500px;
            width: 90%;
        }
        h1 {
            color: #333;
            margin-bottom: 20px;
        }
        p {
            color: #666;
            margin-bottom: 30px;
        }
        .download-btn {
            background-color: #0061ff; 
            color: white;
            border: none;
            padding: 12px 24px;
            text-align: center;
            text-decoration: none;
            display: inline-block;
            font-size: 16px;
            margin: 10px 2px;
            cursor: pointer;
            border-radius: 4px;
            transition: background-color 0.3s;
        }
        .download-btn:hover {
            background-color: #0052d9;
        }
        .security-note {
            font-size: 12px;
            color: #999;
            margin-top: 30px;
        }