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Upon launching the app, several neon green fitness icons emerge and rotate into a neat circular constellation. This icon assembly is followed by a staggered, upward-sliding fade-in of the onboarding copy ('Your fitness story, beautifully told') and a prominent 'Link Fitness Data' button. The movement of the icons is fluid, using a spring-like easing that allows them to settle into their final circular positions with a subtle bounce, creating an engaging and premium welcome experience.
