Seems Duo is saying Mālama means take care and Pono means good. So putting the two together translates to take good care. I know it's confusing and pono alone could mean righteous or for me a lifestyle. If we specifically meant take good care we in fact would say Mālama pono kou kino or take care of yourself. Irritating cause it's having me go outside of what I know and getting it wrong. Auwe!