Create a mobile app onboarding flow with 3-4 screens:

SCREEN STRUCTURE:
- Full-screen layout (375x812px - iPhone size)
- Illustration at top (60% of screen)
- Title and description at bottom
- Progress dots indicator
- "Next" button
- "Skip" button in top right

SCREEN 1: Welcome
- Illustration: Welcoming character or app icon
- Title: "Welcome to [App Name]"
- Description: Brief intro to what the app does

SCREEN 2: Key Feature 1
- Illustration: Feature visualization
- Title: Feature name
- Description: How it benefits the user

SCREEN 3: Key Feature 2
- Similar structure
- Different illustration and feature

SCREEN 4: Get Started
- Final screen
- "Get Started" primary button
- "Sign in" secondary link

STYLING:
- Bright, friendly colors
- Large, readable typography
- Smooth swipe transitions
- Animated illustrations (optional)
- Progress dots change color as you advance
- Consistent spacing and padding