body {
    font-family: 'Inter', sans-serif;
}
.nav-link {
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 50%;
    background-color: #3b82f6; /* blue-600 */
    transition: all 0.3s ease-in-out;
}
.nav-link:hover::after {
    width: 100%;
    left: 0;
}