Why did the types of pyramids built in Egypt change or evolve?

The types of pyramids built in Egypt evolved primarily due to advancements in architectural techniques, changes in religious beliefs, and shifts in political power. Early pyramids, like the Step Pyramid of Djoser, showcased a progression from mastabas to more complex structures, reflecting a desire for grander burial sites. Over time, the construction of smooth-sided pyramids, such as those at Giza, represented both an architectural innovation and a reflection of the pharaoh's divine status. Additionally, as resources and labor dynamics changed, so did the design and scale of these monumental tombs.