.nav-link.active { 
    position: relative; 
}
.nav-link.active::after {
    position: absolute;
    bottom: -17.5px;
    left:0;
    content: '';
    height: 7px;
    width: 100%;
    background-color: var(--bs-red);
}
.nav-item {
    margin: 10px;
}
.header-image {
    background-position: bottom center !important;
    background-image: url(https://capitalfire.nevarro.co.uk/img/header.png) !important;
    background-size: cover !important;
}