<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Page not found</title>
  <style>
    body { font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif; background:#f7f7f9; color:#222; }
    .wrap { max-width: 720px; margin: 10vh auto; background:#fff; border:1px solid #e5e7eb; border-radius:12px; padding:32px; box-shadow: 0 8px 24px rgba(0,0,0,0.06); }
    h1 { margin: 0 0 8px; font-size: 28px; }
    p { margin: 0 0 16px; line-height:1.6; }
    a.btn { display:inline-block; padding:10px 16px; background:#2c3e50; color:#fff; text-decoration:none; border-radius:8px; }
  </style>
</head>
<body>
  <main class="wrap">
    <h1>Page not found</h1>
    <p>The page you are looking for doesn’t exist or has been moved.</p>
    <p><a class="btn" href="/">Go to home</a></p>
  </main>
</body>
</html>
