A fullscreen navigation whose backdrop is two panels that arrive by rotating rather than sliding. Each half is scaled twice over and parked at a half turn about the edge it meets in the middle, so opening the menu unwinds both rotations at once and the two colours sweep in from the seam. The links are split into masked lines that rise once the panels are most of the way home, and the hamburger crosses into an X on the same clock. GSAP with CustomEase and SplitText.