Design a conversion-focused social media ad for the language learning app App Name in the Format. Place the Headline prominently near the top in large, confident sans-serif typography, with clear hierarchy and generous spacing. Show a modern smartphone mockup as the central visual, displaying a believable language lesson interface focused on Lesson Topic, including a short exercise, progress indicator and small vocabulary cards. Add the Streak Badge Text in a compact rounded badge near the phone, making it feel like a motivating achievement. Place the CTA Button Text in a high-contrast rounded button beneath the phone. Use the Color Palette consistently across the background, interface accents, badge and button, with subtle gradient depth and clean app-ad styling. Keep all written text sharp, correctly spelled and fully legible, with strong contrast at mobile size. Balance the layout with ample breathing room and no unnecessary decorative elements.
Use these details:
App Name: "LinguaStep"
Headline: "Speak Fluently"
Lesson Topic: "Ordering coffee in Spanish"
Streak Badge Text: "7 Day Streak"
CTA Button Text: "Start Learning"
Color Palette: "cobalt blue, coral and warm white"
Format: "4:5 vertical Instagram post"
AI models never repeat themselves exactly, so your result will differ from the one here. Change the details to make it yours.