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20260512-skg-tk/web/README.md

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# Art Gallery Slider
A full-screen art gallery experience with GSAP-powered horizontal scrolling, dynamic color extraction, and animated ambient backgrounds.
## Features
- **Dynamic Ambient Backgrounds**: Extracts dominant colors from each artwork to create animated gradient backgrounds that shift as you navigate
- **Heavy Drag Interactions**: Smooth drag with resistance and momentum scrolling using Framer Motion
- **Trackpad/Magic Mouse Support**: Horizontal scroll gestures with accumulated delta thresholds
- **Keyboard Navigation**: Arrow keys, A/D, Home/End for full keyboard accessibility
- **Parallax Effects**: Cards shift during drag with parallax motion
- **Hover Animations**: Artwork lifts with slide-up info panels on hover
- **Glassmorphism UI**: Dark editorial aesthetic with blur effects and elegant typography
## Tech Stack
- Next.js 15 (App Router)
- React 19
- Framer Motion (animations, drag gestures)
- GSAP (scroll-triggered animations)
- Tailwind CSS v4
- TypeScript
## Project Structure
\`\`\`
├── app/
│ ├── page.tsx # Main page
│ ├── layout.tsx # Root layout with fonts
│ └── globals.css # Tailwind config & design tokens
├── components/
│ ├── art-gallery-slider.tsx # Main slider component
│ ├── artwork-card.tsx # Individual artwork cards
│ └── navigation-dots.tsx # Navigation indicator
├── hooks/
│ ├── use-slider-navigation.ts # Keyboard & index control
│ ├── use-slider-drag.ts # Mouse/touch drag logic
│ ├── use-slider-wheel.ts # Trackpad/scroll handling
│ └── use-color-extraction.ts # Color management
├── lib/
│ ├── color-extractor.ts # Canvas-based color extraction
│ └── constants.ts # Configuration values
├── data/
│ └── artworks.ts # Artwork data
└── types/
└── artwork.ts # TypeScript interfaces
\`\`\`
## Prompt to Recreate
\`\`\`
Build a full-screen art gallery slider with the following features:
1. LAYOUT & DESIGN
- Full viewport height gallery with horizontal card-based slider
- Dark editorial aesthetic (#0a0a0a background)
- Glassmorphism navigation elements with backdrop blur
- Playfair Display for headings, Inter for body text
- Cards sized at 70vh height with 3:4 aspect ratio
2. DYNAMIC AMBIENT BACKGROUNDS
- Extract 3 dominant colors from each artwork image using canvas
- Create animated radial gradient backgrounds using extracted colors
- Smooth 600ms crossfade transitions between backgrounds as slides change
- Colors should be distinct (filter similar colors) and not too light
3. DRAG INTERACTIONS
- Heavy drag feel with 0.4 resistance factor (mouse movement dampened)
- Momentum-based settling with slow easing (0.1 factor)
- Parallax effect on cards during drag (slight horizontal offset based on drag delta)
- Snap to nearest slide on release
4. TRACKPAD/MAGIC MOUSE SUPPORT
- Detect horizontal wheel events (deltaX)
- Accumulate scroll delta with 0.3 resistance
- Trigger slide change when accumulated delta exceeds 120px threshold
- Reset accumulator after 150ms of inactivity
5. KEYBOARD NAVIGATION
- Left/Right arrows and A/D keys for prev/next
- Home/End keys to jump to first/last slide
- Visual hint text showing keyboard controls
6. ARTWORK CARDS
- Image with object-cover fill
- Hover state: lift card with translateY(-8px) and scale(1.02)
- Info panel slides up from bottom on hover (glassmorphism background)
- Display: title, artist name, year
- Prevent text selection on artwork info
7. NAVIGATION DOTS
- Fixed position at bottom center
- Dots use extracted primary color for active state
- Scale animation on active dot
- Click to navigate to specific slide
8. CODE ARCHITECTURE
- Separate custom hooks for: navigation, drag, wheel, color extraction
- Centralized types, constants, and data files
- Clean component composition in main slider
\`\`\`
## License
MIT