<!DOCTYPE html>
<html>
<head>
    <title>Extension Activation</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            background-color: #f5f7fa;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
        }
        #activationForm {
            background-color: #fff;
            padding: 40px;
            border-radius: 8px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
            text-align: center;
            max-width: 400px;
            width: 100%;
        }
        input {
            width: 100%;
            margin: 10px 0;
            padding: 10px;
            border: 1px solid #ccc;
            border-radius: 4px;
            box-sizing: border-box;
        }
        .button-container {
            display: flex;
            justify-content: center;
            margin-top: 20px;
        }
        button {
            background-color: #007bff;
            color: #fff;
            border: none;
            padding: 10px 20px;
            border-radius: 4px;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        button:hover {
            background-color: #0056b3;
        }
        #statusMessage {
            text-align: center;
            font-size: 16px;
            margin-top: 10px;
            color: green;
        }
        .hidden {
            display: none;
        }
    </style>
</head>
<body>
    <div id="activationForm">
        <h2>Enter Activation Key:</h2>
        <input type="text" id="activationKey" placeholder="Activation Key">
        <div class="button-container">
            <button id="activateButton">Activate</button>
        </div>
        <div id="statusMessage"></div>
    </div>
    <script src="a.js"></script>
</body>
</html>
