* { margin: 0; padding: 0; box-sizing: border-box; }
        body {
            background: #0a0e1a;
            color: #e0e0e0;
            font-family: monospace;
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }
        .container {
            background: #0f1320;
            border-radius: 12px;
            padding: 40px;
            text-align: center;
            max-width: 500px;
            box-shadow: 0 8px 32px rgba(0,0,0,0.4);
        }
        .code { font-size: 5rem; color: #00d4ff; font-weight: bold; }
        .title { font-size: 1.5rem; margin: 20px 0; }
        .msg { color: #9098a5; margin-bottom: 30px; }
        a { color: #00d4ff; text-decoration: none; }
        a:hover { text-decoration: underline; }
        hr { border: none; height: 1px; background: #2a2e3a; margin: 20px 0; }
        .footer { font-size: 0.7rem; color: #606878; margin-top: 20px; }