Duolingo ABC Get Started

The onboarding flow begins with a lively splash screen that transitions to a clean sign-in page where the Duolingo mascot, Duo, waves with a bouncy idle animation. Tapping the primary 'Get Started' button triggers a tactile scale-down press state before sliding the next screen in from the right. Selecting an option instantly highlights the item in green and activates the primary 'Continue' button with a springy scale-up transition. The progress bar at the top smoothly fills to reflect the user's journey.