<?php
$order_no = $_GET['order_no'] ?? '';
?>
<!DOCTYPE html>
<html>
<head>
    <title>Payment Successful</title>
</head>
<body style="text-align:center; font-family:Arial;">
    <h2>🎉 Payment Successful!</h2>
    <p>Your payment with Order ID <strong><?php echo htmlspecialchars($order_no); ?></strong> has been received.</p>
    <a href="/">Go to Home</a>
</body>
</html>
