header {
    background-color: #000;
}
.nav-link {
    color: #fff !important;
    font-weight: 500;
    transition: color 0.3s;
}
.nav-link:hover {
    color: #0d6efd !important;
}
.logo {
    height: 40px;
}
.dropdown-menu {
    background-color: #111;
    border: none;
}
.dropdown-menu .dropdown-item {
    color: #fff;
    transition: background 0.3s;
}
.dropdown-menu .dropdown-item:hover {
    background-color: #222;
    color: #0d6efd;
}