<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>404 Not Found</title>
  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css">
</head>
<body class="bg-light text-center py-5">
  <h1 class="display-4 text-danger">404 - Page Not Found</h1>
  <p class="lead">Sorry, the page you’re looking for doesn’t exist.</p>
  <a href="<?= BASE_URL ?>" class="btn btn-primary mt-3">Go Home</a>
</body>
</html>
