.navigation-menu {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    flex-wrap: nowrap;
}

.navigation-menu__link:not(:last-child) {
    margin-right: 8px;
}

@media (min-width: 769px) {
    .navigation-menu__link:not(:last-child) {
        margin-right: 15px;
    }
}