Mockups de Onboarding para App de Autenticación en Modo Oscuro

Clean, high-fidelity UI mockups recreating 4 mobile onboarding screens based on the reference design, rendered as direct digital graphic mockups without perspective distortion, glare, or device surroundings. The four [iPhone-style] smartphone frames are aligned front-facing and evenly spaced in a single horizontal row on a [light gray] background canvas. Dark mode theme featuring a [blue security visual style], rounded phone bezels, top status bars, top skip links, and bottom home indicators. From left to right, exactly 4 screens: 1. Authenticator account protection screen with main call-to-action button labeled "[Get Started]". 2. Timely alerts screen featuring a notification permission toggle switch and a button labeled "[Continue]". 3. End-to-end encryption screen featuring a shield and lock graphic, social icons, and a button labeled "[Continue]". 4. Face ID protection quick setup screen featuring a biometric scan overlay graphic, activation toggle, and a button labeled "[Continue]". Crisp vector typography, consistent spacing, sharp readable text, and polished app store presentation quality.