# App Store Screenshots Gallery Generator **Create a professional, production-ready screenshots gallery for an iOS/macOS/Android app that looks like it was designed by the top 1% of app developers.** ## Context You are building a screenshots gallery page for an app. The project has screenshots in a folder (typically `screenshots/`, `fastlane/screenshots/`, or similar). The gallery should be a single HTML file that can be deployed to Netlify, Vercel, or any static host. ## Requirements ### 1. Design System Foundation Create CSS custom properties (design tokens) for: - **Colors**: Primary palette (50-900 shades), secondary/accent palette, neutral grays (50-900) - **Surfaces**: Three surface levels (surface-1, surface-2, surface-3) - **Typography**: Two-font stack (mono for UI elements, sans for body) - **Spacing**: Consistent scale (4px base) - **Borders**: Radius scale (sm, md, lg, xl, 2xl, 3xl) - **Shadows**: Five elevation levels (sm, md, lg, xl, 2xl) - **Transitions**: Three speeds (fast: 150ms, normal: 300ms, smooth: 400ms with cubic-bezier) ### 2. Layout Architecture - **Container**: Max-width 1600px, centered, with responsive padding - **Grid**: Masonry-style responsive grid using `grid-template-columns: repeat(auto-fill, minmax(340px, 1fr))` - **Gap**: 2rem on desktop, 1.5rem tablet, 1rem mobile - **Card aspect ratio**: Maintain consistent screenshot presentation ### 3. Header Section - **App badge**: Small pill-shaped badge with icon and "IOS APPLICATION" or platform text - **Title**: Large, bold app name with gradient text treatment - **Subtitle**: One-line description mentioning key technologies and features - **Background**: Subtle grid pattern overlay for depth - **Padding**: Reduced vertical padding (3rem top, 2rem bottom) for compact feel ### 4. Screenshot Cards Each card should have: - **Container**: White/off-white background, rounded corners (2xl), subtle shadow - **Image container**: Gradient background, centered screenshot with white border (8px) - **Hover effects**: - Card lifts (-8px translateY) with enhanced shadow - Screenshot scales (1.04) with slight rotation (0.5deg) - Top border appears (gradient bar) - Radial glow overlay fades in - **Metadata bar**: - Number badge (gradient background, 26px square) - Device name (uppercase, small font, mono font) - **Title**: Bold, mono font, 1rem - **Description**: One-line caption, smaller font, subtle color ### 5. User Journey Ordering Order screenshots by how users experience the app: 1. **Login/Onboarding** - First screen users see 2. **Dashboard/Home** - Main landing after login 3. **Primary feature views** - Core app functionality 4. **Settings/Configuration** - Customization screens 5. **Permissions/Integrations** - HealthKit, notifications, etc. 6. **Advanced features** - Sync, sharing, cloud features 7. **Analytics/Reports** - Data visualization screens 8. **Archive/History** - Historical data views ### 6. Animations - **Entrance**: Staggered fade-in with translateY (0.1s delays between cards) - **Hover**: Smooth cubic-bezier easing (0.16, 1, 0.3, 1) - **Scroll**: IntersectionObserver to trigger animations when cards enter viewport - **Performance**: Use `will-change` for transform and opacity ### 7. Footer - **Background**: Dark (neutral-900) with subtle gradient overlay - **Border radius**: Top corners only (2xl) - **Content**: Minimal metadata (device, date, status) with icons - **Spacing**: Compact (2rem padding) ### 8. Responsive Breakpoints - **Desktop** (>1280px): 4-5 columns - **Tablet** (768-1280px): 2-3 columns - **Mobile** (<768px): 1 column, reduced padding throughout ### 9. Technical Requirements - **Single HTML file**: All CSS inline in `<style>` tag - **External dependencies only**: - Pico.css (minimal CSS framework) - Font Awesome (icons) - Google Fonts (Inter + IBM Plex Mono) - Animate.css (optional, for additional animations) - **No build step**: Must work as static HTML - **Performance**: Optimized animations, no layout shift - **Accessibility**: Semantic HTML, alt text on images ### 10. Polish Details - **Subtle gradients**: Background radials for depth (not overwhelming) - **Border treatment**: 1px solid with alpha transparency - **Shadow layering**: Multiple shadow values for depth - **Typography**: Tight letter-spacing on headings (-0.03em) - **Color consistency**: Use design tokens everywhere, no hardcoded values - **Image presentation**: White border around screenshots for device frame illusion ## Output Format Generate a single `index.html` file with: 1. Complete HTML structure 2. Inline CSS with design tokens 3. JavaScript for scroll animations (IntersectionObserver) 4. All screenshot cards with proper metadata 5. Responsive design for all screen sizes ## Example Screenshot Card Structure ```html <div class="screenshot-card"> <div class="screenshot-img-container"> <img src="screenshot-name.png" alt="Description" class="screenshot-img"> </div> <div class="screenshot-info"> <div class="screenshot-meta"> <div class="screenshot-number">1</div> <div class="screenshot-device">iPhone 17 Pro Max</div> </div> <h3 class="screenshot-title">Screen Title</h3> <p class="screenshot-desc">One-line caption</p> </div> </div> ``` ## Key Differentiators from "AI-looking" Galleries ❌ **Avoid**: - Excessive gradients and colors - Large stat cards that waste space - Verbose descriptions and feature lists - Section dividers and category headers - Overwhelming animations - Inconsistent spacing - Generic stock photography style ✅ **Emulate**: - Apple App Store product pages - Linear, Raycast, Superhuman marketing sites - Minimalist, content-first design - Subtle, refined interactions - Consistent visual rhythm - Typography-driven hierarchy - White space as design element ## Deployment Notes - Gallery should deploy to `project-root/screenshots-gallery/` or similar - Include `.netlify` folder with `netlify.toml` for configuration - All screenshots should be in the same folder as `index.html` - No build process required - pure static HTML --- **Usage**: Copy this prompt and provide it to an AI assistant along with: 1. The list of screenshot files in your project 2. Your app name and one-line description 3. The platform (iOS, macOS, Android, web) 4. Key technologies used (SwiftUI, React Native, Flutter, etc.) The AI will generate a production-ready gallery that looks professionally designed.