Motion discipline distilled across builds. Attention as a fixed per-viewport budget, figure/ground separation (calm the ground, load motion into the figure), one focal point of motion per screen, diegetic-over-decorative test, trigger-on-intent-then-settle over perpetual loops, and the prefers-reduced-motion fallback. Recipe pairs Astro with a Remotion video kit (rendered assets in public/). Read whenever you add motion to a marketing surface or any page where movement competes with reading. Paired with factory-design, which owns the static visual vocabulary motion sits on top of.
