<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Invalid Request</title>
    <style>
        body {
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
            font-family: Arial, sans-serif;
            background: linear-gradient(135deg, #ff6b6b, #f94d4d);
            color: white;
        }

        .error-container {
            text-align: center;
        }

        h1 {
            font-size: 3rem;
            margin-bottom: 1rem;
        }

        p {
            font-size: 1.2rem;
            margin-bottom: 1.5rem;
        }

        a {
            display: inline-block;
            padding: 0.75rem 1.5rem;
            background-color: white;
            color: #f94d4d;
            border-radius: 5px;
            text-decoration: none;
            font-weight: bold;
            transition: background-color 0.3s, color 0.3s;
        }

        a:hover {
            background-color: #f94d4d;
            color: white;
        }
    </style>
</head>
<body>
    <div class="error-container">
        <h1>Invalid Request</h1>
        <p>Oops! The request you made is not valid or cannot be processed.</p>
    </div>
</body>
</html>
