spin 1s linear infinite;
        }
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>OAuth Login Example</h1>
        
        <div id="loginSection">
            <p>Click the buttons below to sign in with your account:</p>
            <button id="googleLoginBtn" class="btn" onclick="initiateGoogleLogin()">
                <svg width="18" height="18" viewBox="0 0 