      background: rgba(40, 15, 15, 0.9);
            border-color: rgba(255, 100, 100, 0.4);
            transform: translateY(-2px);
            box-shadow: 0 6px 25px rgba(0, 0, 0, 0.4);
        }

        @media (max-width: 600px) {
            .center-box {
                padding: 24px;
            }
            
            .header-text h1 {
                font-size: 22px;
            }
        }
    </style>

    <script>
        // Simple particle system for validation page
        class SimplePart