<!DOCTYPE html>

<html lang="en">

<head>

  <meta charset="UTF-8">

  <meta name="viewport" content="width=device-width, initial-scale=1.0">

  <title>Test Page</title>

  <style>

    body { font-family: system-ui, sans-serif; display: grid; place-items: center;

           height: 100vh; margin: 0; background: #f4f4f5; }

    .card { background: #fff; padding: 2rem 3rem; border-radius: 12px;

            box-shadow: 0 2px 12px rgba(0,0,0,.08); text-align: center; }

    h1 { margin: 0 0 .5rem; }

    #status { color: #16a34a; font-weight: 600; }

  </style>

</head>

<body>

  <div class="card">

    <h1>Hello, World!</h1>

    <p>If you can read this, HTML and CSS are working.</p>

    <p id="status">JavaScript is not running</p>

  </div>

  <script>

    document.getElementById('status').textContent = 'JavaScript is working ✓';

  </script>

</body>

</html>