.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background: #ffffff;
    left: 50%;
    bottom: 0;
    transition: width 0.4s ease-in-out, left 0.4s ease-in-out;
}
.nav-link:hover::after {
    width: 100%;
    left: 0;
}

@media (max-width: 768px) {
    #graph-container {
        margin-top: 10px; /* Adjust this value to move the graph higher on mobile */
        height:fit-content;
    }
}