<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Warning Intruder</title>
    <style>
        body {
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
            background-color: #000;
            color: #ff0000;
            font-family: 'Courier New', Courier, monospace;
            background-image: url('https://www.example.com/scary-background.jpg'); /* Reemplaza con una URL válida */
            background-size: cover;
            background-repeat: no-repeat;
            background-position: center;
        }
        h1 {
            text-align: center;
            font-size: 2em;
            text-shadow: 2px 2px 4px #000000;
            animation: flicker 1.5s infinite alternate;
        }
        @keyframes flicker {
            0% { opacity: 1; }
            50% { opacity: 0.8; }
            100% { opacity: 1; }
        }
    </style>
</head>
<body>
    <h1>Wow, you've made it this far! Congratulations, intruder. But remember... even if you close your eyes, even if you shut down the system... WE WILL ALWAYS BE WATCHING YOU. AHAHAHAHAHA!</h1>
</body>
</html>