What’s the difference between Reform and Reconstructionist

Hey. Ive been researching Judaism on a superficial level a bit and I’ve come across these two movements. I am aware that most Jews most likely do not fit in one movement neatly and that the borders between orthodox, Masorti, Renewal and on are probably quite blurry here and then, especially for the individual. However, I still did not really understand the theological difference between reform and Reconstructionist Judaism. I suppose there’s more secular Jews in latter one, but both fall under the term progressive judaism and I’m just not aware of any real theological differences right now . So I thought, I might ask here about the differences!