<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>404 - Page Not Found</title>
    <style>
        body { font-family: sans-serif; text-align: center; padding: 80px 20px; background: #f5f5f5; color: #333; }
        h1 { font-size: 6rem; margin: 0; color: #e74c3c; }
        h2 { font-size: 1.5rem; margin: 10px 0 20px; }
        a { color: #3498db; text-decoration: none; }
        a:hover { text-decoration: underline; }
    </style>
</head>
<body>
    <h1>404</h1>
    <h2>Page Not Found</h2>
    <p>The page you requested was not found.</p>
    <p><a href="/">Go back home</a></p>
</body>
</html>
