.animate-fade-in {
    animation: fadeIn 0.5s;
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
.dark {
    background-color: #333;
    color: white;
}
@media (max-width: 768px) {
    #msng-styles { grid-template-columns: 1fr; }
}