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The interaction begins with a full-screen denim texture featuring a central zipper. Dragging the zipper slider downward splits the denim fabric apart, revealing a vibrant blue onboarding screen underneath. The unzipping motion features realistic separation of the zipper teeth and an elastic, curved peeling of the fabric edges. Once fully unzipped, the onboarding content, including the app logo, feature list, and a 'Start' button, settles into place.
