feat: design system v2 with liquid glass aesthetic

Overhaul design constants for OLED-first dark mode:
- Colors: brand palette, phase colors, glass/shadow tokens, gradients
- Typography: Inter font scale matching iOS type system
- Spacing: 4px base unit with layout constants
- Border radius: liquid glass card radii
- Animations: spring/timing presets for UI transitions

Add v2 product docs (PRD, PDD, BDSD) and update CLAUDE.md.
Install expo-video, expo-sharing, @expo-google-fonts/inter.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Millian Lamiaux
2026-02-20 13:23:18 +01:00
parent 54ac8326fa
commit 511e207762
15 changed files with 2865 additions and 312 deletions

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CLAUDE.md
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# TabataGo — CLAUDE.md
> Lis ce fichier EN ENTIER avant chaque session. C'est la constitution du projet.
# TabataFit — CLAUDE.md
> "Apple Fitness+ for Tabata" — Lis ce fichier EN ENTIER avant chaque session.
## Projet
Application mobile Tabata (iOS + Android) construite avec Expo SDK 52 + Expo Router v3.
Modèle freemium via RevenueCat. Analytics via PostHog. Offline-first.
---
## Environnement de développement
**Test sur device physique via Expo Go** — pas de simulateur iOS.
- Scanner le QR code affiché par `npx expo start` avec l'app Expo Go sur le téléphone
- Le téléphone et le Mac doivent être sur le **même réseau Wi-Fi**
- En cas de problème réseau : `npx expo start --tunnel` (utilise ngrok, plus lent mais fiable)
## 🎯 Vision
### Contraintes Expo Go à respecter
- **Pas de modules natifs custom** — uniquement les modules inclus dans le SDK Expo Go
- `react-native-purchases` (RevenueCat) **ne fonctionne PAS dans Expo Go** → mocker le paywall en dev, tester sur build EAS uniquement
- `expo-notifications` fonctionne partiellement dans Expo Go → tester les notifications sur build EAS dev
- Modules **compatibles Expo Go SDK 52** (utilisables sans build) :
`expo-av`, `expo-haptics`, `expo-keep-awake`, `expo-router`, `expo-secure-store`,
`@react-native-async-storage/async-storage`, `expo-localization`, `react-native-posthog`
**TabataFit est l'Apple Fitness+ du Tabata.**
### Workflow de test
1. **Expo Go** → développement UI, timer, audio, exercices (90% du dev)
2. **EAS Build (Development)** → tester RevenueCat, notifications avancées
3. **EAS Build (Production)** → build final App Store / Play Store
Une expérience premium, video-first, guidée par des coachs, qui transforme 4 minutes d'exercice en une expérience de fitness immersive.
## Stack technique — règles non-négociables
| Domaine | Solution | Interdit |
|---|---|---|
| Framework | Expo SDK 52 (managed workflow) | Bare workflow sauf si absolument nécessaire |
| Navigation | Expo Router v3 (file-based) | React Navigation seul |
| State global | Zustand + AsyncStorage | Redux, MobX, Context pour state global |
| Timer engine | Date.now() delta dans un hook isolé | setInterval seul (drift inacceptable) |
| Audio | expo-av avec AVAudioSession | expo-audio (instable), react-native-sound |
| Paiements | react-native-purchases (RevenueCat) | IAP natif direct — **MOCKER en dev Expo Go** |
| Analytics | react-native-posthog | Firebase Analytics, Amplitude |
| Styles | StyleSheet.create() | Styles inline, Tailwind, NativeWind |
| Types | TypeScript strict (`"strict": true`) | any, @ts-ignore sauf justification |
*"Workouts that work. Beautifully."*
---
## 📱 Produit
### Positionnement
- **Analogy** : "If Apple made a Tabata app"
- **Focus** : Tabata/HIIT uniquement (pas multi-activité)
- **Durée** : 4-20 min (format Tabata)
- **Différenciateur** : Video-led + Coaching audio + Timer intelligent
### Stack Technique
| Domaine | Solution |
|---------|----------|
| Framework | Expo SDK 52 (managed) |
| Navigation | Expo Router v3 |
| State | Zustand + AsyncStorage |
| Video | expo-av → HLS streaming |
| Audio | expo-av (coaching + music) |
| Animations | React Native Animated |
| Payments | RevenueCat |
| Analytics | PostHog |
---
## 📚 Documentation
| Document | Description |
|----------|-------------|
| `TabataFit_PRD_v2.0.md` | Product Requirements — features, roadmap |
| `TabataFit_PDD_v2.0.md` | Product Design — screens, UX, flows |
| `TabataFit_BDSD_v2.0.md` | Brand Design — colors, typography, style |
**TOUJOURS lire ces documents avant de développer.**
---
## 🏗️ Architecture
## Architecture — structure de fichiers
```
src/
features/
timer/
hooks/useTimerEngine.ts ← moteur central, AUCUN JSX
hooks/useTimerSync.ts ← synchronise audio + exercice sur les events timer
components/TimerDisplay.tsx ← affichage uniquement, reçoit tout par props
components/TimerControls.tsx ← boutons start/pause/stop/skip
types.ts ← TimerPhase, TimerState, TimerConfig
audio/
hooks/useAudioEngine.ts ← gestion expo-av, preload, crossfade
hooks/useAudioSettings.ts ← préférences utilisateur (ambiance, volume)
data/tracks.ts ← catalogue des tracks (offline)
data/sounds.ts ← catalogue des signaux de phase
types.ts
exercises/
hooks/useExercise.ts ← sélection, navigation entre exercices
components/ExerciseDisplay.tsx ← rendu selon la phase courante
components/ExerciseGif.tsx ← affichage GIF avec fallback
data/exercises.ts ← les 38 exercices (offline)
types.ts
programs/
hooks/useProgram.ts
components/ProgramBuilder.tsx
data/defaultPrograms.ts
onboarding/
hooks/useOnboarding.ts
screens/ ← 6 écrans (1 fichier par écran)
paywall/
hooks/usePaywall.ts ← RevenueCat wrapper
components/PaywallScreen.tsx
home/ # Home tab - For You, Continue, Collections
workouts/ # Workouts tab - Categories, workout list
player/ # Active workout - Video, timer, stats
activity/ # Activity tab - Stats, trends, calendar
browse/ # Browse tab - Filters, trainers
profile/ # Profile tab - Settings, achievements
shared/
components/ Button, Card, Typography, etc.
hooks/ ← useHaptics, useKeepAwake, useAppState
utils/ formatTime, etc.
constants/ ← couleurs, durées par défaut
app/ ← Expo Router (fichiers de route uniquement)
components/ # Button, Card, VideoPlayer, etc.
hooks/ # useTimer, useVideo, useHaptics
utils/ # formatTime, etc.
constants/ # colors, typography, spacing
app/ # Expo Router routes
(tabs)/
index.tsx Home
history.tsx
settings.tsx
timer/index.tsx
programs/[id].tsx
onboarding/index.tsx
paywall/index.tsx
index.tsx # Home
workouts.tsx # Workouts
activity.tsx # Activity
browse.tsx # Browse
profile.tsx # Profile
player/
[id].tsx # Workout player
```
## Règles de code
1. **Un fichier = une responsabilité** — si un hook dépasse 150 lignes, il doit être découpé
2. **Toute logique métier dans les hooks** — les composants n'ont QUE du JSX + appel de hooks
3. **Barrel exports** — chaque feature expose un `index.ts` propre
4. **Tests colocalisés**`ComponentName.test.tsx` dans le même dossier
5. **Pas d'effet secondaire dans le render** — tout dans useEffect ou les handlers
6. **Typage strict des events** — pas de `any` dans les callbacks de timer/audio
---
## 🎨 Design System
### Couleurs Principales
```typescript
BACKGROUND: '#000000' // Pure black
SURFACE: '#1C1C1E' // Charcoal
BRAND: '#FF6B35' // Flame orange
REST: '#5AC8FA' // Ice blue
SUCCESS: '#30D158' // Energy green
```
### Phase Colors (Critique)
```typescript
PREP: '#FF9500' // Orange-yellow
WORK: '#FF6B35' // Flame orange
REST: '#5AC8FA' // Ice blue
COMPLETE: '#30D158' // Green
```
### Typography
- **Font**: Inter (Google Fonts)
- **Timer**: 96px, Black weight
- **Titles**: 34px/28px/22px
- **Body**: 17px
---
## 📋 Priorités Développement
### Phase 1 — MVP (Semaines 1-4)
1. ✅ Design system setup
2. 🔲 Home tab (Featured, Continue Watching)
3. 🔲 Workouts tab (Categories)
4. 🔲 Pre-workout detail screen
5. 🔲 Video player avec timer overlay
6. 🔲 Workout complete screen
7. 🔲 20 workouts (mock data)
### Phase 2 — Core (Semaines 5-8)
1. 🔲 Activity tab (Stats, Calendar)
2. 🔲 Browse tab (Filters, Trainers)
3. 🔲 Profile tab (Settings)
4. 🔲 Apple Watch integration
5. 🔲 50 workouts total
### Phase 3 — Premium (Semaines 9-12)
1. 🔲 Offline downloads
2. 🔲 Burn Bar
3. 🔲 Subscription system
4. 🔲 Achievements
5. 🔲 100+ workouts
---
## 🧪 Test Environment
**Expo Go sur device physique** — pas de simulateur.
1. `npx expo start`
2. Scanner le QR code avec Expo Go
3. Même réseau Wi-Fi requis
---
## 📝 Règles de Code
1. **Un fichier = une responsabilité**
2. **Toute logique métier dans les hooks**
3. **Components = JSX uniquement**
4. **TypeScript strict** — pas de `any`
5. **Styles avec StyleSheet.create()**
6. **Dark mode only** — pas de light mode
---
## 🎬 Contenu Video
### Format Workout Video
- **Resolution**: 1080p minimum
- **Duration**: Match workout duration
- **Structure**:
- Intro (5s): Trainer greeting
- Prep (3s): 3-2-1 countdown
- Work (20s): Exercise demonstration
- Rest (10s): Recovery, next exercise preview
- Repeat for each round
- Outro (5s): Celebration, trainer sign-off
### Trainers (5 au launch)
1. **Emma** — Energy queen, beginner-friendly
2. **Jake** — Strength focus
3. **Mia** — Form perfectionist
4. **Alex** — Cardio beast
5. **Sofia** — Chill but effective
---
## 💰 Monetization
### Free Tier
- 3 workouts free forever
- Basic stats
- Ads between workouts
### Premium ($6.99/mo or $49.99/yr)
- Unlimited workouts
- Offline downloads
- Apple Watch integration
- Advanced stats
- No ads
- Family Sharing
---
## 🚀 Commands
## Commandes du projet
```bash
npx expo start # dev — scanner le QR avec Expo Go
npx expo start --tunnel # si problème réseau Wi-Fi (ngrok)
npx expo start --clear # vider le cache Metro si comportement bizarre
jest --watchAll # tests en continu
eas build --profile development # build dev (pour tester RevenueCat, notifs)
eas build --platform ios # build TestFlight
npx expo export # bundle production
npx expo start # Development
npx expo start --tunnel # If network issues
npx expo start --clear # Clear cache
npx tsc --noEmit # Type check
eas build --profile dev # Dev build
```
## Comment utiliser les skills
---
Quand tu travailles sur une feature spécifique, lis le skill correspondant :
- Timer → `.claude/skills/timer/SKILL.md`
- Audio → `.claude/skills/audio/SKILL.md`
- Exercices → `.claude/skills/exercises/SKILL.md`
- Workflow général → `.claude/skills/workflow/SKILL.md`
## 📖 Comment Utiliser les Skills
## Priorité d'implémentation V1
1. `useTimerEngine` + `TimerDisplay` (plein écran)
2. `useAudioEngine` + synchronisation avec timer
3. `ExerciseDisplay` + données des 38 exercices
4. Synchronisation triple timer × audio × exercice
5. Onboarding 6 écrans + mini-démo live
6. Paywall RevenueCat
7. Streak + historique
8. Notifications de rappel
Voir `.claude/skills/` pour les guides spécialisés.
---
*Document updated: February 18, 2026*
*Version: 2.0*
*Project: TabataFit — Apple Fitness+ for Tabata*

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# Welcome to your Expo app 👋
# TabataFit
This is an [Expo](https://expo.dev) project created with [`create-expo-app`](https://www.npmjs.com/package/create-expo-app).
> **Apple Fitness+ for Tabata** — The Premium HIIT Experience
## Get started
![Expo](https://img.shields.io/badge/Expo-52-black)
![TypeScript](https://img.shields.io/badge/TypeScript-5.0-blue)
![License](https://img.shields.io/badge/License-Proprietary-red)
1. Install dependencies
## Vision
```bash
npm install
```
TabataFit est l'Apple Fitness+ du Tabata. Une expérience premium, video-first, guidée par des coachs, qui transforme 4 minutes d'exercice en une expérience de fitness immersive.
2. Start the app
## Features
```bash
npx expo start
```
- 🎬 **Video-led workouts** — HD video demonstrations by professional trainers
- ⏱️ **Smart timer** — Tabata timer with work/rest phases
- 🔥 **Burn Bar** — Compare your calories with the community
- 📊 **Activity tracking** — Streaks, stats, and trends
- 🎵 **Music sync** — Curated playlists for each workout
-**Apple Watch** — Heart rate and activity rings
In the output, you'll find options to open the app in a
## Tech Stack
- [development build](https://docs.expo.dev/develop/development-builds/introduction/)
- [Android emulator](https://docs.expo.dev/workflow/android-studio-emulator/)
- [iOS simulator](https://docs.expo.dev/workflow/ios-simulator/)
- [Expo Go](https://expo.dev/go), a limited sandbox for trying out app development with Expo
- **Framework**: Expo SDK 52
- **Navigation**: Expo Router v3
- **State**: Zustand
- **Video**: expo-av (HLS streaming)
- **Payments**: RevenueCat
- **Analytics**: PostHog
You can start developing by editing the files inside the **app** directory. This project uses [file-based routing](https://docs.expo.dev/router/introduction).
## Get a fresh project
When you're ready, run:
## Getting Started
```bash
npm run reset-project
# Install dependencies
npm install
# Start development server
npx expo start
# Run on device (scan QR with Expo Go)
```
This command will move the starter code to the **app-example** directory and create a blank **app** directory where you can start developing.
## Documentation
## Learn more
| Document | Description |
|----------|-------------|
| [PRD v2.0](./TabataFit_PRD_v2.0.md) | Product Requirements |
| [PDD v2.0](./TabataFit_PDD_v2.0.md) | Product Design |
| [BDSD v2.0](./TabataFit_BDSD_v2.0.md) | Brand Design |
To learn more about developing your project with Expo, look at the following resources:
## Project Structure
- [Expo documentation](https://docs.expo.dev/): Learn fundamentals, or go into advanced topics with our [guides](https://docs.expo.dev/guides).
- [Learn Expo tutorial](https://docs.expo.dev/tutorial/introduction/): Follow a step-by-step tutorial where you'll create a project that runs on Android, iOS, and the web.
```
src/
features/
home/ # Home tab
workouts/ # Workouts browser
player/ # Video player + timer
activity/ # Stats & history
browse/ # Filters & trainers
profile/ # User settings
shared/
components/ # Reusable UI
hooks/ # Custom hooks
constants/ # Design tokens
app/ # Expo Router routes
```
## Join the community
## License
Join our community of developers creating universal apps.
Proprietary — All rights reserved.
- [Expo on GitHub](https://github.com/expo/expo): View our open source platform and contribute.
- [Discord community](https://chat.expo.dev): Chat with Expo users and ask questions.
---
Built with ❤️ for HIIT lovers

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TabataFit_BDSD_v2.0.md Normal file
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# TabataFit — Brand Design Specification v2.0
> Apple Liquid Glass Design for Tabata
---
## Brand Positioning
**TabataFit = Apple Fitness+ avec Liquid Glass (iOS 18.4)**
| Attribute | Description |
|-----------|-------------|
| **Analogy** | "If Apple made a Tabata app in 2026" |
| **Vibe** | Premium, glassy, fluid, immersive |
| **Emotion** | Confident, empowering, sleek |
| **Differentiator** | Video-led + Liquid Glass UI |
---
## 🪟 Liquid Glass System (iOS 18.4 Style)
### Concept
Le **Liquid Glass** est le nouveau design language d'Apple qui combine :
- **Glassmorphism avancé** — Blur dynamique, transparence multicouche
- **Fluidité organique** — Formes arrondies, animations liquides
- **Lumière réactive** — Reflets, glows qui répondent au contenu
- **Profondeur atmosphérique** — Layers de verre empilés
### Glass Layers
```typescript
const GLASS = {
// Base glass (surfaces)
BASE: {
backgroundColor: 'rgba(255, 255, 255, 0.05)',
backdropFilter: 'blur(40px)',
borderWidth: 1,
borderColor: 'rgba(255, 255, 255, 0.1)',
shadowColor: '#000',
shadowOffset: { width: 0, height: 8 },
shadowOpacity: 0.3,
shadowRadius: 32,
},
// Elevated glass (cards, modals)
ELEVATED: {
backgroundColor: 'rgba(255, 255, 255, 0.08)',
backdropFilter: 'blur(60px)',
borderWidth: 1,
borderColor: 'rgba(255, 255, 255, 0.15)',
shadowColor: '#000',
shadowOffset: { width: 0, height: 12 },
shadowOpacity: 0.4,
shadowRadius: 48,
},
// Inset glass (input fields, controls)
INSET: {
backgroundColor: 'rgba(0, 0, 0, 0.2)',
backdropFilter: 'blur(20px)',
borderWidth: 1,
borderColor: 'rgba(255, 255, 255, 0.05)',
},
// Tinted glass (accent overlays)
TINTED: {
backgroundColor: 'rgba(255, 107, 53, 0.15)', // Brand tint
backdropFilter: 'blur(40px)',
borderWidth: 1,
borderColor: 'rgba(255, 107, 53, 0.3)',
},
}
```
### Liquid Animations
```typescript
const LIQUID = {
// Morphing shapes
MORPH: {
duration: 600,
easing: 'cubic-bezier(0.4, 0, 0.2, 1)',
},
// Ripple effect on tap
RIPPLE: {
scale: { from: 0.8, to: 1 },
opacity: { from: 0.5, to: 0 },
duration: 400,
},
// Breathing glow
BREATHE: {
scale: { from: 1, to: 1.02 },
shadowRadius: { from: 20, to: 30 },
duration: 2000,
loop: true,
},
// Slide with liquid easing
SLIDE: {
damping: 20,
stiffness: 300,
mass: 1,
},
}
```
---
## Visual Identity
### Logo Concept
```
┌─────────────────────────────┐
│ │
│ TABATA │ ← Bold, black
│ FIT │ ← Accent orange
│ │
│ [Flame icon] │ ← Optional mark
│ │
└─────────────────────────────┘
```
### Brand Voice
| DO | DON'T |
|----|-------|
| "Let's burn." | "Get ripped fast!" |
| "4 minutes to stronger." | "Lose weight now!" |
| "Your daily dose of HIIT." | "The #1 fitness app!" |
| Minimal, confident copy | Excessive exclamation marks!! |
---
## Color Palette
### Primary Colors
```
┌─────────────────────────────────────────────────────────┐
│ │
│ BLACK ████████████ #000000 Background │
│ CHARCOAL ████████████ #1C1C1E Surfaces │
│ SLATE ████████████ #2C2C2E Elevated │
│ │
│ FLAME ████████████ #FF6B35 Brand accent │
│ FLAME LIGHT ████████████ #FF8C5A Highlights │
│ │
│ ICE ████████████ #5AC8FA Rest phases │
│ GLOW ████████████ #FFD60A Achievement │
│ ENERGY ████████████ #30D158 Success/Complete│
│ │
└─────────────────────────────────────────────────────────┘
```
### Semantic Usage
| Color | Hex | Usage |
|-------|-----|-------|
| **Black** | #000000 | Main background, video frames |
| **Charcoal** | #1C1C1E | Cards, raised surfaces |
| **Slate** | #2C2C2E | Modals, elevated elements |
| **Flame** | #FF6B35 | Work phase, CTAs, brand |
| **Ice** | #5AC8FA | Rest phase, calm states |
| **Glow** | #FFD60A | Achievement badges, streaks |
| **Energy** | #30D158 | Complete states, success |
### Phase Colors (Critical)
```typescript
const PHASE_COLORS = {
PREP: '#FF9500', // Orange-yellow - get ready
WORK: '#FF6B35', // Flame orange - WORK!
REST: '#5AC8FA', // Ice blue - recover
COMPLETE: '#30D158', // Energy green - done!
}
```
---
## Typography
### Font Stack
**Primary**: Inter (Google Fonts)
- Clean, modern, excellent readability
- Variable weight support
- Apple SF Pro alternative
### Type Scale
| Style | Size | Weight | Use Case |
|-------|------|--------|----------|
| **HERO** | 48px | 900 | Marketing, celebration |
| **TITLE_1** | 34px | 700 | Screen titles |
| **TITLE_2** | 28px | 700 | Section headers |
| **TITLE_3** | 22px | 600 | Card titles |
| **BODY** | 17px | 400 | Default text |
| **BODY_BOLD** | 17px | 600 | Emphasis |
| **CAPTION** | 15px | 400 | Metadata |
| **MICRO** | 13px | 400 | Small labels |
| **TIMER** | 96px | 900 | Countdown display |
### Timer Typography (Special)
```typescript
const TIMER_STYLES = {
// Main countdown number
NUMBER: {
fontFamily: 'Inter_900Black',
fontSize: 96,
fontVariant: ['tabular-nums'], // Monospace digits
letterSpacing: -2,
},
// Phase label (WORK, REST)
PHASE: {
fontFamily: 'Inter_700Bold',
fontSize: 24,
letterSpacing: 2,
textTransform: 'uppercase',
},
// Round indicator
ROUND: {
fontFamily: 'Inter_500Medium',
fontSize: 17,
fontVariant: ['tabular-nums'],
},
}
```
---
## Spacing System
```typescript
const SPACING = {
// Base unit: 4px
0: 0,
1: 4,
2: 8,
3: 12,
4: 16,
5: 20,
6: 24,
8: 32,
10: 40,
12: 48,
16: 64,
// Semantic
XS: 4,
SM: 8,
MD: 16,
LG: 24,
XL: 32,
XXL: 48,
}
const LAYOUT = {
SCREEN_PADDING: 24, // Horizontal screen padding
CARD_RADIUS: 16, // Standard card radius
BUTTON_RADIUS: 12, // Button radius
TAB_BAR_HEIGHT: 80, // Bottom tab bar
STATUS_BAR: 44, // iOS status bar
}
```
---
## Component Styles
### Cards
```typescript
const CARD = {
CONTAINER: {
backgroundColor: '#1C1C1E',
borderRadius: 16,
overflow: 'hidden',
},
THUMBNAIL: {
aspectRatio: 16/9,
backgroundColor: '#2C2C2E',
},
CONTENT: {
padding: 16,
},
// Variants
FEATURED: {
borderRadius: 20,
},
COMPACT: {
flexDirection: 'row',
borderRadius: 12,
},
}
```
### Buttons
```typescript
const BUTTON = {
PRIMARY: {
backgroundColor: '#FF6B35',
paddingVertical: 16,
paddingHorizontal: 24,
borderRadius: 12,
alignItems: 'center',
justifyContent: 'center',
},
PRIMARY_TEXT: {
color: '#FFFFFF',
fontFamily: 'Inter_600SemiBold',
fontSize: 17,
letterSpacing: 0.5,
},
SECONDARY: {
backgroundColor: 'transparent',
borderWidth: 1,
borderColor: '#3A3A3C',
},
GHOST: {
backgroundColor: 'transparent',
},
}
```
### Timer Display
```typescript
const TIMER = {
CONTAINER: {
position: 'absolute',
bottom: 0,
left: 0,
right: 0,
padding: 24,
background: 'linear-gradient(transparent, rgba(0,0,0,0.8))',
},
NUMBER: {
fontFamily: 'Inter_900Black',
fontSize: 96,
color: '#FFFFFF',
textAlign: 'center',
},
PROGRESS_BAR: {
height: 4,
backgroundColor: 'rgba(255,255,255,0.2)',
borderRadius: 2,
marginTop: 16,
},
PROGRESS_FILL: {
height: '100%',
borderRadius: 2,
// Color based on phase
},
}
```
---
## Animation Specifications
### Timing Constants
```typescript
const DURATION = {
INSTANT: 100,
FAST: 200,
NORMAL: 300,
SLOW: 500,
XSLow: 800,
}
const EASING = {
// Standard iOS ease
DEFAULT: 'ease-out',
// Spring animations
BOUNCY: {
damping: 15,
stiffness: 180,
},
GENTLE: {
damping: 20,
stiffness: 100,
},
}
```
### Key Animations
**Timer Countdown:**
```typescript
// Number pulses slightly each second
Animated.sequence([
Animated.timing(scale, { toValue: 1.05, duration: 100 }),
Animated.timing(scale, { toValue: 1, duration: 100 }),
])
```
**Progress Bar:**
```typescript
// Smooth linear fill during phase
Animated.timing(width, {
toValue: 100,
duration: phaseDuration,
easing: Easing.linear,
})
```
**Phase Transition:**
```typescript
// Color crossfade
Animated.timing(colorProgress, {
toValue: 1,
duration: 300,
})
```
**Workout Complete:**
```typescript
// Celebration with scale + fade
Animated.parallel([
Animated.spring(scale, { toValue: 1, ...BOUNCY }),
Animated.timing(opacity, { toValue: 1, duration: 500 }),
])
```
---
## Icon System
Using SF Symbols / Ionicons equivalent:
| Context | Icon | Size |
|---------|------|------|
| Home Tab | house.fill | 24 |
| Workouts Tab | flame.fill | 24 |
| Activity Tab | chart.bar.fill | 24 |
| Browse Tab | square.grid.2x2.fill | 24 |
| Profile Tab | person.fill | 24 |
| Play | play.fill | 20 |
| Pause | pause.fill | 20 |
| Close | xmark | 20 |
| Back | chevron.left | 20 |
| Forward | chevron.right | 20 |
| Heart | heart.fill | 20 |
| Search | magnifyingglass | 20 |
---
## Video Player UI
### Overlay Layout
```
┌─────────────────────────────────────────────┐
│ [Close X] [♥︎] [···] │ ← Top bar
│ │
│ │
│ [VIDEO CONTENT] │
│ │
│ │
│ │
│ ┌─────────────────────────────────────────┐ │
│ │ 🔥 WORK │ │
│ │ │ │
│ │ 00:14 │ │ ← Timer overlay
│ │ │ │
│ │ Round 3 of 8 │ │
│ │ ████████████░░░░ │ │
│ └─────────────────────────────────────────┘ │
└─────────────────────────────────────────────┘
```
### Video Requirements
- **Resolution**: 1080p minimum
- **Aspect**: 16:9 (landscape) or 9:16 (portrait mode)
- **Format**: HLS (m3u8) for streaming
- **Audio**: AAC, 128kbps minimum
- **Thumbnail**: JPG, same aspect ratio
---
## Sound Design
### Sound Effects
| Event | Sound | Description |
|-------|-------|-------------|
| Phase Start | "ding" | Quick, bright chime |
| Count 3-2-1 | "tick" | Subtle tick sound |
| Workout Start | "whoosh" | Energy whoosh |
| Workout Complete | "success" | Celebratory chime |
| Button Tap | "tap" | Soft tap feedback |
| Streak Achieved | "fire" | Crackling fire |
### Haptics
| Event | Haptic |
|-------|--------|
| Phase change | Medium |
| Button tap | Light |
| Countdown tick | Selection |
| Workout complete | Success |
| Error | Error |
---
## Dark Mode Only
TabataFit is **dark mode only** — no light mode. This is a deliberate design choice matching Apple Fitness+ and creating an immersive, cinematic experience.
Reasons:
1. Better video contrast
2. Less eye strain during workouts
3. Premium feel
4. Consistent with fitness studio lighting
---
## Image Guidelines
### Trainer Photos
- Professional, high-quality headshots
- Warm, approachable expressions
- Fitness attire visible
- Consistent lighting style
- Background: Dark or studio setting
### Workout Thumbnails
- Action shot from the workout
- Clear exercise demonstration
- Trainer visible
- Dark/gradient background
- Text overlay: Title, duration, level
### Collection Banners
- 16:9 aspect ratio
- Composite of trainer + exercises
- Gradient overlay for text
- Brand accent color elements
---
## Copy Guidelines
### Tone
- **Confident** but not arrogant
- **Encouraging** but not cheesy
- **Clear** and direct
- **Minimal** — let the content speak
### Examples
| Context | Good | Bad |
|---------|------|-----|
| CTA | "Start Workout" | "Start Your Workout Now!" |
| Empty state | "No workouts yet" | "You haven't done any workouts :(" |
| Error | "Connection lost" | "Oh no! Something went wrong!" |
| Success | "Workout complete" | "AMAZING! You crushed it!!!" |
### Coach Dialogue
- Motivational but authentic
- Form cues during exercises
- Breathing reminders during rest
- Encouragement without clichés
---
*Document created: February 18, 2026*
*Version: 2.0*
*Brand: Apple Fitness+ inspired*

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# TabataFit — Product Design Document v2.0
> Apple Fitness+ Design Language for Tabata
---
## Design Philosophy
**"Make it feel like a premium fitness studio in your pocket."**
TabataFit adopts le design language d'Apple Fitness+ :
- **Dark mode premium** — Fond noir profond, couleurs vibrantes
- **Video-first** — Le contenu est le héros
- **Typography bold** — Gros titres, textes épurés
- **Subtle animations** — Transitions fluides, feedback délicat
- **Inclusive imagery** — Diversité des coachs et body types
---
## Color System — Dark Premium
### Background Colors
```typescript
const COLORS = {
// Backgrounds
BACKGROUND: '#000000', // Pure black — comme Apple TV
SURFACE: '#1C1C1E', // Raised surfaces
ELEVATED: '#2C2C2E', // Cards, modals
OVERLAY: 'rgba(0,0,0,0.6)', // Video overlays
// Brand Accent (Vibrant Orange-Red)
BRAND: '#FF6B35', // Energy, action
BRAND_LIGHT: '#FF8C5A', // Highlights
BRAND_DARK: '#E55A25', // Pressed states
// Secondary Accents
SUCCESS: '#34C759', // Completed, streaks
WARNING: '#FF9500', // Rest phases
INFO: '#5AC8FA', // Tips, info
// Text
TEXT_PRIMARY: '#FFFFFF', // Main text
TEXT_SECONDARY: '#EBEBF5', // Secondary (87% opacity)
TEXT_TERTIARY: '#EBEBF599', // Tertiary (60% opacity)
TEXT_DISABLED: '#3A3A3C', // Disabled text
// Semantic
WORK: '#FF6B35', // Active work phase
REST: '#5AC8FA', // Rest phase (calm blue)
PREP: '#FF9500', // Countdown prep
}
```
### Gradient Presets
```typescript
const GRADIENTS = {
// Hero banners
HERO_WORK: ['#FF6B35', '#E55A25'],
HERO_REST: ['#5AC8FA', '#007AFF'],
HERO_FEAT: ['#1C1C1E', '#000000'],
// Video overlays
VIDEO_OVERLAY: ['transparent', 'rgba(0,0,0,0.8)'],
VIDEO_TOP: ['rgba(0,0,0,0.4)', 'transparent'],
// Buttons
CTA: ['#FF6B35', '#FF8C5A'],
}
```
---
## Typography System — Apple SF Pro Style
```typescript
const TYPOGRAPHY = {
// Hero/Display
HERO: {
fontFamily: 'Inter_900Black',
fontSize: 48,
lineHeight: 56,
letterSpacing: -1,
},
// Section Headers (like Apple Fitness+)
TITLE_1: {
fontFamily: 'Inter_700Bold',
fontSize: 34,
lineHeight: 41,
letterSpacing: 0.37,
},
TITLE_2: {
fontFamily: 'Inter_700Bold',
fontSize: 28,
lineHeight: 34,
letterSpacing: 0.36,
},
TITLE_3: {
fontFamily: 'Inter_600SemiBold',
fontSize: 22,
lineHeight: 28,
letterSpacing: 0.35,
},
// Body
BODY: {
fontFamily: 'Inter_400Regular',
fontSize: 17,
lineHeight: 22,
letterSpacing: -0.41,
},
BODY_BOLD: {
fontFamily: 'Inter_600SemiBold',
fontSize: 17,
lineHeight: 22,
letterSpacing: -0.41,
},
// Metadata
CAPTION_1: {
fontFamily: 'Inter_400Regular',
fontSize: 15,
lineHeight: 20,
letterSpacing: -0.24,
},
CAPTION_2: {
fontFamily: 'Inter_400Regular',
fontSize: 14,
lineHeight: 18,
letterSpacing: -0.15,
},
// Timer (special)
TIMER: {
fontFamily: 'Inter_900Black',
fontSize: 96,
lineHeight: 96,
letterSpacing: -2,
},
TIMER_PHASE: {
fontFamily: 'Inter_700Bold',
fontSize: 24,
lineHeight: 28,
letterSpacing: 2, // Uppercase tracking
textTransform: 'uppercase',
},
}
```
---
## Screen Designs
### 1. Home Tab — "For You"
#### Layout Structure
```
┌─────────────────────────────────────────────────────┐
│ status bar │
├─────────────────────────────────────────────────────┤
│ │
│ Bonjour, Alex [Profile] │ ← 24px padding
│ │
│ ┌───────────────────────────────────────────────┐ │
│ │ │ │
│ │ [VIDEO PREVIEW - LOOPING] │ │ ← Hero Card
│ │ │ │ 16:9 aspect
│ │ ┌─────────────────────────────────┐ │ │
│ │ │ 🔥 FEATURED │ │ │
│ │ │ │ │ │
│ │ │ FULL BODY BURN │ │ │ ← Text overlay
│ │ │ 4 min • Beginner • Emma │ │ │ on video
│ │ │ │ │ │
│ │ │ [▶️ START] [♡ Save] │ │ │
│ │ └─────────────────────────────────┘ │ │
│ │ │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ Continue See All → │ ← Section header
│ ┌─────────┐ ┌─────────┐ ┌─────────┐ │
│ │ [Thumb] │ │ [Thumb] │ │ [Thumb] │ │ ← Horizontal scroll
│ │ ━━━━━ │ │ ━━━━━ │ │ ━━━━━ │ │ 140x200px cards
│ │ 65% │ │ 30% │ │ 10% │ │
│ │ Core │ │ HIIT │ │ Full │ │
│ │ Burn │ │ Extreme │ │ Body │ │
│ └─────────┘ └─────────┘ └─────────┘ │
│ │
│ Popular This Week │
│ ┌─────────┐ ┌─────────┐ ┌─────────┐ ┌─────────┐ │
│ │ [Thumb] │ │ [Thumb] │ │ [Thumb] │ │ [Thumb] │ │ ← Smaller cards
│ │ │ │ │ │ │ │ │ │ │ 120x120px
│ │ Quick │ │ Strength│ │ Cardio │ │ Core │ │
│ │ Burn │ │ Tabata │ │ Blast │ │ Crush │ │
│ └─────────┘ └─────────┘ └─────────┘ └─────────┘ │
│ │
│ Collections │
│ ┌─────────────────────────────────────────────┐ │
│ │ 🌅 Morning Energizer │ │ ← Full-width cards
│ │ 5 workouts • 20 min total │ │
│ └─────────────────────────────────────────────┘ │
│ ┌─────────────────────────────────────────────┐ │
│ │ 🔥 7-Day Challenge │ │
│ │ 7 workouts • Progressive intensity │ │
│ └─────────────────────────────────────────────┘ │
│ │
├─────────────────────────────────────────────────────┤
│ [Home] [Workouts] [Activity] [Browse] [Profile] │
└─────────────────────────────────────────────────────┘
```
#### Component Specs
**Hero Card:**
- Full width - 48px padding
- 16:9 aspect ratio
- Video preview looping (muted)
- Gradient overlay: transparent → rgba(0,0,0,0.8)
- Featured badge top-left
- Title, metadata, CTA bottom
**Continue Watching Card:**
- 140px width × 200px height
- Thumbnail with progress bar overlay
- Progress percentage badge
- Workout name + duration
**Popular Card:**
- 120px × 120px square
- Thumbnail only
- Category name below
**Collection Card:**
- Full width - 48px padding
- 80px height
- Icon + title + description
- Chevron right
---
### 2. Workouts Tab
#### Layout Structure
```
┌─────────────────────────────────────────────────────┐
│ status bar │
├─────────────────────────────────────────────────────┤
│ │
│ Workouts [🔍 Search] │
│ │
│ ┌───────────────────────────────────────────────┐ │
│ │ │ │
│ │ [LARGE CATEGORY THUMBNAIL] │ │
│ │ │ │
│ │ 🔥 QUICK BURN │ │
│ │ 4 min • All levels │ │
│ │ 12 workouts │ │
│ │ [→] │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ ┌───────────────────────────────────────────────┐ │
│ │ │ │
│ │ [LARGE CATEGORY THUMBNAIL] │ │
│ │ │ │
│ │ 💪 STRENGTH TABATA │ │
│ │ 8 min • Intermediate │ │
│ │ 8 workouts │ │
│ │ [→] │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ ┌───────────────────────────────────────────────┐ │
│ │ 🏃 CARDIO BLAST │ │
│ │ 4-12 min • All levels • 15 workouts [→] │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ ┌───────────────────────────────────────────────┐ │
│ │ 🧘 CORE & FLEXIBILITY │ │
│ │ 4 min • Beginner • 6 workouts [→] │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ ┌───────────────────────────────────────────────┐ │
│ │ ⚡ HIIT EXTREME │ │
│ │ 12-20 min • Advanced • 10 workouts [→] │ │
│ └───────────────────────────────────────────────┘ │
│ │
├─────────────────────────────────────────────────────┤
│ [Home] [Workouts] [Activity] [Browse] [Profile] │
└─────────────────────────────────────────────────────┘
```
#### Category Detail View
```
┌─────────────────────────────────────────────────────┐
│ ← Quick Burn │
│ │
│ ┌───────────────────────────────────────────────┐ │
│ │ 4 min • All levels • 12 workouts │ │
│ │ │ │
│ │ Filter: [All] [Beginner] [Intermediate] │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ ┌───────────────────────────────────────────────┐ │
│ │ ┌──────┐ │ │
│ │ │[Vid] │ Full Body Ignite │ │
│ │ │ │ 4 min • Beginner • Emma │ │
│ │ └──────┘ │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ ┌───────────────────────────────────────────────┐ │
│ │ ┌──────┐ │ │
│ │ │[Vid] │ Cardio Crusher │ │
│ │ │ │ 4 min • Intermediate • Alex │ │
│ │ └──────┘ │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ ┌───────────────────────────────────────────────┐ │
│ │ ┌──────┐ │ │
│ │ │[Vid] │ Lower Body Blast │ │
│ │ │ │ 4 min • Intermediate • Jake │ │
│ │ └──────┘ │ │
│ └───────────────────────────────────────────────┘ │
│ │
└─────────────────────────────────────────────────────┘
```
---
### 3. Pre-Workout Detail Screen
```
┌─────────────────────────────────────────────────────┐
│ ← [♡] [···] │
│ │
│ ┌───────────────────────────────────────────────┐ │
│ │ │ │
│ │ │ │
│ │ [VIDEO PREVIEW - LOOPING] │ │
│ │ │ │
│ │ Coach Emma in action │ │
│ │ │ │
│ │ │ │
│ │ │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ FULL BODY IGNITE │
│ ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ │
│ │
│ 👩 Emma • 💪 Beginner • ⏱️ 4 min • 🔥 45cal │
│ │
│ ───────────────────────────────────────────────── │
│ │
│ What You'll Need │
│ ○ No equipment required │
│ ○ Yoga mat optional │
│ │
│ ───────────────────────────────────────────────── │
│ │
│ Exercises (8 rounds) │
│ ┌─────────────────────────────────────────────┐ │
│ │ 1. Jump Squats 20s work │ │
│ │ 2. Mountain Climbers 20s work │ │
│ │ 3. Burpees 20s work │ │
│ │ 4. High Knees 20s work │ │
│ │ ─────────────────────── │ │
│ │ Repeat × 2 rounds │ │
│ └─────────────────────────────────────────────┘ │
│ │
│ ───────────────────────────────────────────────── │
│ │
│ Music │
│ 🎵 Electronic Energy │
│ Upbeat, high-energy electronic tracks │
│ │
│ ┌───────────────────────────────────────────────┐ │
│ │ │ │
│ │ ▶️ START WORKOUT │ │
│ │ │ │
│ └───────────────────────────────────────────────┘ │
│ │
└─────────────────────────────────────────────────────┘
```
---
### 4. Active Workout Screen — The Core Experience
#### Work Phase
```
┌─────────────────────────────────────────────────────┐
│ │
│ ┌───────────────────────────────────────────────┐ │
│ │ │ │
│ │ │ │
│ │ │ │
│ │ [FULL SCREEN VIDEO] │ │
│ │ │ │
│ │ Coach doing Jump Squats │ │
│ │ in perfect form │ │
│ │ │ │
│ │ │ │
│ │ ┌───────────────────────────────────────┐ │ │
│ │ │ ┌─────────────────────────────────┐ │ │ │
│ │ │ │ 🔥 WORK │ │ │ │ ← Timer overlay
│ │ │ │ │ │ │ │ bottom gradient
│ │ │ │ 00:14 │ │ │ │
│ │ │ │ │ │ │ │
│ │ │ │ Round 3 of 8 │ │ │ │
│ │ │ │ ████████████░░░░ 65% │ │ │ │
│ │ │ └─────────────────────────────────┘ │ │ │
│ │ └───────────────────────────────────────┘ │ │
│ │ │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ JUMP SQUATS │
│ ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ │
│ │
│ ┌───────────┐ ┌───────────┐ ┌───────────┐ │
│ │ 52 │ │ 142 │ │ 85% │ │
│ │ CALORIES │ │ BPM │ │ EFFORT │ │
│ └───────────┘ └───────────┘ └───────────┘ │
│ │
│ Burn Bar │
│ ░░░░░░░░████████████████░░░░ 72nd percentile │
│ │
│ [⏸️ Pause] [⛶ Fullscreen]│
│ │
└─────────────────────────────────────────────────────┘
```
#### Rest Phase
```
┌─────────────────────────────────────────────────────┐
│ │
│ ┌───────────────────────────────────────────────┐ │
│ │ │ │
│ │ [COACH IN REST POSITION] │ │
│ │ │ │
│ │ "Shake it out, take a breath" │ │
│ │ │ │
│ │ ┌───────────────────────────────────────┐ │ │
│ │ │ ┌─────────────────────────────────┐ │ │ │
│ │ │ │ 💙 REST │ │ │ │ ← Blue rest theme
│ │ │ │ │ │ │ │
│ │ │ │ 00:08 │ │ │ │
│ │ │ │ │ │ │ │
│ │ │ │ Next: Mountain Climbers │ │ │ │
│ │ │ │ ░░░░░░░░░░░░░░░░░░░ 40% │ │ │ │
│ │ │ └─────────────────────────────────┘ │ │ │
│ │ └───────────────────────────────────────┘ │ │
│ │ │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ UP NEXT │
│ ┌───────────────────────────────────────────────┐ │
│ │ ┌──────┐ │ │
│ │ │ GIF │ Mountain Climbers │ │
│ │ │preview│ "Core engaged, drive knees forward" │ │
│ │ └──────┘ │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ [⏸️ Pause] [⛶ Fullscreen]│
│ │
└─────────────────────────────────────────────────────┘
```
#### 3-2-1 Countdown (Pre-Work)
```
┌─────────────────────────────────────────────────────┐
│ │
│ ┌───────────────────────────────────────────────┐ │
│ │ │ │
│ │ │ │
│ │ │ │
│ │ │ │
│ │ │ │
│ │ GET READY! │ │
│ │ │ │
│ │ 3 │ │ ← Giant number
│ │ │ │ centered
│ │ │ │
│ │ JUMP SQUATS │ │
│ │ │ │
│ │ │ │
│ │ │ │
│ │ │ │
│ └───────────────────────────────────────────────┘ │
│ │
└─────────────────────────────────────────────────────┘
```
---
### 5. Workout Complete Screen
```
┌─────────────────────────────────────────────────────┐
│ │
│ │
│ 🎉 │
│ │
│ WORKOUT COMPLETE │
│ │
│ ┌───────────────────────────────────────────────┐ │
│ │ │ │
│ │ [ANIMATED CELEBRATION RINGS] │ │
│ │ │ │
│ │ 🔥 💪 ⚡ │ │
│ │ │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ ┌───────────┐ ┌───────────┐ ┌───────────┐ │
│ │ 52 │ │ 4 │ │ 100% │ │
│ │ CALORIES │ │ MINUTES │ │ COMPLETE │ │
│ └───────────┘ └───────────┘ └───────────┘ │
│ │
│ Burn Bar │
│ You beat 73% of users! │
│ ░░░░░░░░████████████████░░░░ │
│ │
│ ───────────────────────────────────────────────── │
│ │
│ 🔥 7 Day Streak! │
│ Keep the momentum going! │
│ │
│ ┌───────────────────────────────────────────────┐ │
│ │ 📤 SHARE YOUR WORKOUT │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ ┌───────────────────────────────────────────────┐ │
│ │ ← BACK TO HOME │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ Recommended Next │
│ ┌─────────┐ ┌─────────┐ ┌─────────┐ │
│ │ [Thumb] │ │ [Thumb] │ │ [Thumb] │ │
│ │ Core │ │ Upper │ │ Cardio │ │
│ │ Crush │ │ Body │ │ Blast │ │
│ └─────────┘ └─────────┘ └─────────┘ │
│ │
└─────────────────────────────────────────────────────┘
```
---
### 6. Activity Tab
```
┌─────────────────────────────────────────────────────┐
│ │
│ Activity │
│ │
│ ┌───────────────────────────────────────────────┐ │
│ │ │ │
│ │ 🔥 STREAK │ │
│ │ │ │
│ │ 7 │ │
│ │ DAYS │ │
│ │ │ │
│ │ ● ● ● ● ● ● ● ○ ○ ○ │ │
│ │ M T W T F S S M T W │ │
│ │ │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ This Week │
│ ┌───────────┐ ┌───────────┐ ┌───────────┐ │
│ │ 5 │ │ 156 │ │ 20 │ │
│ │ WORKOUTS │ │ CALORIES │ │ MINUTES │ │
│ │ 5 goal │ │ 150 goal │ │ 20 goal │ │
│ └───────────┘ └───────────┘ └───────────┘ │
│ │
│ Monthly Summary │
│ ┌───────────────────────────────────────────────┐ │
│ │ [CALENDAR HEAT MAP] │ │
│ │ │ │
│ │ Jan 2026 │ │
│ │ S M T W T F S │ │
│ │ 1 2 3 4 5 6 │ │
│ │ 7 8 9 10 11 12 13 │ │
│ │ 14 15 16 17 18 19 20 │ │
│ │ ░ ░ █ █ ░ █ █ │ │
│ │ █ █ ░ █ █ ░ ░ │ │
│ │ ░ █ █ █ █ █ █ │ │
│ │ │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ Trends │
│ ┌───────────────────────────────────────────────┐ │
│ │ 📈 Workouts trending up! │ │
│ │ +23% vs last month │ │
│ │ │ │
│ │ [WEEKLY CHART] │ │
│ │ │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ Burn Bar Position │
│ ┌───────────────────────────────────────────────┐ │
│ │ Your average: 45 cal/workout │ │
│ │ ████████████░░░░ 68th percentile │ │
│ └───────────────────────────────────────────────┘ │
│ │
└─────────────────────────────────────────────────────┘
```
---
### 7. Browse Tab
```
┌─────────────────────────────────────────────────────┐
│ │
│ Browse │
│ │
│ Filters [Edit] │
│ ┌────────┐ ┌────────┐ ┌────────┐ ┌────────┐ │
│ │ All ▼ │ │ 4 min │ │ 8 min │ │ Begin │ │
│ └────────┘ └────────┘ └────────┘ └────────┘ │
│ │
│ Trainers │
│ ┌────────┐ ┌────────┐ ┌────────┐ ┌────────┐ │
│ │ 👩 │ │ 👨 │ │ 👩 │ │ 👨 │ │
│ │ Emma │ │ Jake │ │ Mia │ │ Alex │ │
│ │ 12 wk │ │ 8 wk │ │ 10 wk │ │ 6 wk │ │
│ └────────┘ └────────┘ └────────┘ └────────┘ │
│ │
│ Duration │
│ ┌─────────────────────────────────────────────┐ │
│ │ ○ 4 min (Classic Tabata) 20 │ │
│ │ ○ 8 min (Double Tabata) 15 │ │
│ │ ○ 12 min (Triple Tabata) 10 │ │
│ │ ○ 20 min (Tabata Marathon) 5 │ │
│ └─────────────────────────────────────────────┘ │
│ │
│ Focus Area │
│ ┌─────────────────────────────────────────────┐ │
│ │ ○ Full Body 20 │ │
│ │ ○ Upper Body 8 │ │
│ │ ○ Lower Body 8 │ │
│ │ ○ Core 8 │ │
│ │ ○ Cardio 6 │ │
│ └─────────────────────────────────────────────┘ │
│ │
│ Music Vibe │
│ ┌─────────────────────────────────────────────┐ │
│ │ ○ Electronic Energy 18 │ │
│ │ ○ Hip-Hop Beats 12 │ │
│ │ ○ Rock Power 10 │ │
│ │ ○ Chill Focus 10 │ │
│ └─────────────────────────────────────────────┘ │
│ │
│ Collections │
│ ┌─────────────────────────────────────────────┐ │
│ │ 🌅 Morning Energizer • 5 workouts │ │
│ └─────────────────────────────────────────────┘ │
│ ┌─────────────────────────────────────────────┐ │
│ │ 💪 No Equipment • 15 workouts │ │
│ └─────────────────────────────────────────────┘ │
│ ┌─────────────────────────────────────────────┐ │
│ │ 🔥 7-Day Challenge • 7 workouts │ │
│ └─────────────────────────────────────────────┘ │
│ │
└─────────────────────────────────────────────────────┘
```
---
### 8. Profile Tab
```
┌─────────────────────────────────────────────────────┐
│ │
│ Profile │
│ │
│ ┌───────────────────────────────────────────────┐ │
│ │ │ │
│ │ 👤 Alex Martin │ │
│ │ Member since Jan 2026 │ │
│ │ ✨ Premium │ │
│ │ │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ Weekly Goal │
│ ┌───────────────────────────────────────────────┐ │
│ │ 5 workouts per week │ │
│ │ ████████████████░░░░ 4/5 this week │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ Achievements │
│ ┌───────────────────────────────────────────────┐ │
│ │ 🏆 7-Day Streak 🥵 First Sweat │ │
│ │ 💯 100 Workouts 🌅 Early Bird │ │
│ │ 🔥 500 Calories ⚡ Speed Demon │ │
│ │ │ │
│ │ [See All Achievements →] │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ Settings │
│ ┌───────────────────────────────────────────────┐ │
│ │ Notifications [→] │ │
│ │ Apple Watch [→] │ │
│ │ Music Preferences [→] │ │
│ │ Workout Preferences [→] │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ Account │
│ ┌───────────────────────────────────────────────┐ │
│ │ Subscription [→] │ │
│ │ Privacy & Security [→] │ │
│ │ Help & Support [→] │ │
│ │ Sign Out │ │
│ └───────────────────────────────────────────────┘ │
│ │
│ TabataFit v1.0.0 │
│ Made with ❤️ for HIIT lovers │
│ │
└─────────────────────────────────────────────────────┘
```
---
## Animation Specifications
### Screen Transitions
- **Push/Pop**: 300ms ease-out
- **Modal**: Slide up from bottom, 350ms
### Micro-interactions
- **Button press**: Scale to 0.96, 100ms
- **Card tap**: Scale to 0.98, 150ms
- **Toggle**: 200ms spring animation
### Timer Animations
- **Countdown**: Number scales up/down each second
- **Progress bar**: Smooth width animation
- **Phase change**: Color crossfade 300ms
### Celebration
- **Confetti**: Lottie animation on workout complete
- **Rings**: Animated fill when stats update
- **Streak badge**: Pulse animation
---
## Accessibility
- **Dynamic Type**: Support up to 200% text scaling
- **VoiceOver**: Full screen reader support
- **Reduce Motion**: Disable animations when requested
- **High Contrast**: Alternative color scheme option
---
*Document created: February 18, 2026*
*Version: 2.0*
*Design System: Apple Fitness+ Inspired*

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# TabataFit — Product Requirements Document v2.0
> Apple Fitness+ for Tabata — The Premium HIIT Experience
---
## Vision Statement
**TabataFit est l'Apple Fitness+ du Tabata.** Une expérience premium, visuellement stunante, guidée par des coachs, qui transforme 4 minutes d'exercice en une expérience de fitness immersive.
*"Workouts that work. Beautifully."*
---
## Positionnement
| Aspect | Apple Fitness+ | TabataFit |
|--------|---------------|-----------|
| **Focus** | Multi-activité (Yoga, HIIT, Strength, etc.) | Spécialiste Tabata/HIIT |
| **Durée** | 5-45 min | 4-20 min (format Tabata) |
| **Différenciateur** | Intégration Apple Watch | Timer intelligent + Coaching audio |
| **Cible** | Grand public fitness | Athlètes HIIT, busy professionals |
| **Vibe** | Studio californien | Énergie explosive, motivational |
---
## Core Philosophy — Apple Fitness+ Principles
1. **Content is King** — Vidéos HD, coachs charismatiques, production Netflix-quality
2. **Inclusive** — Tous niveaux, modifications montrées
3. **Personalized** — Recommandations basées sur l'historique
4. **Immersive** — Music sync, Burn Bar, stats temps réel
5. **Beautiful** — Design épuré, animations fluides, dark theme élégant
---
## Architecture Produit
### Tab Bar (5 onglets — comme Apple Fitness+)
```
┌─────────────────────────────────────────────────────────────┐
│ │
│ 🏠 Home 🔥 Workouts 📊 Activity 🔍 Browse 👤 Profile │
│ │
└─────────────────────────────────────────────────────────────┘
```
### 1. Home Tab — "For You"
**Inspiration**: Apple Fitness+ Home — grande bannière, collections, recommandations
```
┌─────────────────────────────────────────┐
│ ☀️ Bonjour Alex │
│ │
│ ┌───────────────────────────────────┐ │
│ │ 🎬 FEATURED WORKOUT │ │
│ │ ─────────────────────── │ │
│ │ Full Body Burn │ │
│ │ 4 min • Beginner • Emma │ │
│ │ │ │
│ │ [▶️ START NOW] │ │
│ └───────────────────────────────────┘ │
│ │
│ Continue Watching │
│ ┌─────┐ ┌─────┐ ┌─────┐ │
│ │ 65%│ │ 30%│ │ 10%│ │
│ └─────┘ └─────┘ └─────┘ │
│ │
│ Popular This Week │
│ ┌─────┐ ┌─────┐ ┌─────┐ ┌─────┐ │
│ └─────┘ └─────┘ └─────┘ └─────┘ │
│ │
│ Collections │
│ 🌅 Morning Energizer │
│ 💪 No Equipment Needed │
│ 🔥 7-Day Challenge │
│ │
└─────────────────────────────────────────┘
```
**Elements clés:**
- Hero banner avec vidéo preview en boucle
- "Continue Watching" — workouts non terminés
- "Popular This Week" — trending workouts
- Collections thématiques
- Coach du moment
### 2. Workouts Tab — Parcourir par type
**Inspiration**: Apple Fitness+ workout browser — categories visuelles
```
┌─────────────────────────────────────────┐
│ WORKOUTS 🔍 │
│ │
│ ┌─────────────────────────────────┐ │
│ │ 🔥 QUICK BURN │ │
│ │ 4 min • All levels │ │
│ │ 12 workouts │ │
│ └─────────────────────────────────┘ │
│ │
│ ┌─────────────────────────────────┐ │
│ │ 💪 STRENGTH TABATA │ │
│ │ 8 min • Intermediate │ │
│ │ 8 workouts │ │
│ └─────────────────────────────────┘ │
│ │
│ ┌─────────────────────────────────┐ │
│ │ 🏃 CARDIO BLAST │ │
│ │ 4-12 min • All levels │ │
│ │ 15 workouts │ │
│ └─────────────────────────────────┘ │
│ │
│ ┌─────────────────────────────────┐ │
│ │ 🧘 CORE & FLEXIBILITY │ │
│ │ 4 min • Beginner friendly │ │
│ │ 6 workouts │ │
│ └─────────────────────────────────┘ │
│ │
│ ┌─────────────────────────────────┐ │
│ │ ⚡ HIIT EXTREME │ │
│ │ 12-20 min • Advanced │ │
│ │ 10 workouts │ │
│ └─────────────────────────────────┘ │
│ │
└─────────────────────────────────────────┘
```
**Categories:**
1. **Quick Burn** — 4 min, perfect for beginners
2. **Strength Tabata** — Resistance exercises
3. **Cardio Blast** — Pure cardio, no equipment
4. **Core & Flexibility** — Abs, stretching
5. **HIIT Extreme** — Advanced, longer sessions
### 3. Activity Tab — Stats & Progress
**Inspiration**: Apple Fitness+ Activity rings + trends
```
┌─────────────────────────────────────────┐
│ ACTIVITY │
│ │
│ ┌─────────────────────────────────┐ │
│ │ 🔥 STREAK │ │
│ │ ───────── │ │
│ │ 7 │ │
│ │ DAYS │ │
│ │ │ │
│ │ ○ ○ ○ ○ ○ ○ ○ ● ○ ○ │ │
│ │ M T W T F S S M T │ │
│ └─────────────────────────────────┘ │
│ │
│ This Week │
│ ┌───────┐ ┌───────┐ ┌───────┐ │
│ │ 5 │ │ 156 │ │ 32 │ │
│ │Workout│ │ Calories│ │ Minutes│ │
│ └───────┘ └───────┘ └───────┘ │
│ │
│ Trends │
│ ┌─────────────────────────────────┐ │
│ │ 📈 Workouts are trending up! │ │
│ │ +23% vs last month │ │
│ └─────────────────────────────────┘ │
│ │
│ Burn Bar Position │
│ ┌─────────────────────────────────┐ │
│ │ Your avg: 45 cal/workout │ │
│ │ ████████░░░░ 68th percentile │ │
│ └─────────────────────────────────┘ │
│ │
│ Monthly Summary │
│ [ Calendar view with heat map ] │
│ │
└─────────────────────────────────────────┘
```
**Features:**
- Streak counter avec calendrier visuel
- Stats hebdomadaires (workouts, calories, minutes)
- Trends ("You're on fire! 🔥")
- Burn Bar — comparaison avec autres utilisateurs
- Calendar heat map
### 4. Browse Tab — Tout le contenu
**Inspiration**: Apple Fitness+ Browse — filtres, trainers, music
```
┌─────────────────────────────────────────┐
│ BROWSE │
│ │
│ Filters [Edit]│
│ [All ▼] [4 min] [8 min] [Beginner] │
│ │
│ By Trainer │
│ ┌─────┐ ┌─────┐ ┌─────┐ ┌─────┐ │
│ │ 👩 │ │ 👨 │ │ 👩 │ │ 👨 │ │
│ │Emma │ │Jake │ │Mia │ │Alex │ │
│ └─────┘ └─────┘ └─────┘ └─────┘ │
│ │
│ By Duration │
│ ○ 4 min (Classic Tabata) │
│ ○ 8 min (Double Tabata) │
│ ○ 12 min (Triple Tabata) │
│ ○ 20 min (Tabata Marathon) │
│ │
│ By Focus Area │
│ ○ Full Body │
│ ○ Upper Body │
│ ○ Lower Body │
│ ○ Core │
│ ○ Cardio │
│ │
│ Music Vibe │
│ ○ Electronic Energy │
│ ○ Hip-Hop Beats │
│ ○ Rock Power │
│ ○ Chill Focus │
│ │
└─────────────────────────────────────────┘
```
### 5. Profile Tab — Settings & Account
**Inspiration**: Apple Fitness+ Profile — minimal, clean
```
┌─────────────────────────────────────────┐
│ PROFILE │
│ │
│ ┌─────────────────────────────────┐ │
│ │ 👤 Alex Martin │ │
│ │ Member since Jan 2026 │ │
│ │ Premium ✨ │ │
│ └─────────────────────────────────┘ │
│ │
│ Goals │
│ ┌─────────────────────────────────┐ │
│ │ Weekly Goal: 5 workouts │ │
│ │ ████████░░ 4/5 this week │ │
│ └─────────────────────────────────┘ │
│ │
│ Achievements │
│ 🏆 7-Day Streak │
│ 🥵 First Sweat │
│ 💯 100 Workouts │
│ [See all →] │
│ │
│ Settings │
│ • Notifications │
│ • Apple Watch │
│ • Music Preferences │
│ • Account │
│ • Subscription │
│ │
└─────────────────────────────────────────┘
```
---
## The Workout Experience — Cœur du Produit
### Pre-Workout Screen
**Inspiration**: Apple Fitness+ workout preview — trailer, details, start
```
┌─────────────────────────────────────────┐
│ ← │
│ │
│ ┌───────────────────────────────────┐ │
│ │ │ │
│ │ [VIDEO PREVIEW LOOP] │ │
│ │ Coach Emma demonstrating │ │
│ │ Jump Squats │ │
│ │ │ │
│ └───────────────────────────────────┘ │
│ │
│ FULL BODY BURN │
│ ───────────────────────────────────── │
│ │
│ 👩 Emma • 💪 Intermediate • ⏱️ 4 min │
│ │
│ ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ │
│ │
│ What You'll Need │
│ ○ No equipment │
│ ○ Mat recommended │
│ │
│ Exercises Preview │
│ 1. Jump Squats (20s work) │
│ 2. Mountain Climbers (20s work) │
│ 3. Burpees (20s work) │
│ 4. High Knees (20s work) │
× 2 rounds │
│ │
│ Music │
│ 🎵 Electronic Energy playlist │
│ │
│ ┌───────────────────────────────────┐ │
│ │ ▶️ START WORKOUT │ │
│ └───────────────────────────────────┘ │
│ │
└─────────────────────────────────────────┘
```
### Active Workout Screen — Apple Fitness+ Style
**Inspiration**: Apple Fitness+ player — video dominant, stats overlay
```
┌─────────────────────────────────────────┐
│ │
│ ┌───────────────────────────────────┐ │
│ │ │ │
│ │ │ │
│ │ [FULL SCREEN VIDEO] │ │
│ │ │ │
│ │ Coach doing exercise │ │
│ │ in perfect form │ │
│ │ │ │
│ │ │ │
│ │ │ │
│ │ ┌─────────────────────────────┐ │ │
│ │ │ 🔥 WORK • 00:14 │ │ │
│ │ │ Round 3 of 8 │ │ │
│ │ │ ████████████░░░░ 65% │ │ │
│ │ └─────────────────────────────┘ │ │
│ │ │ │
│ │ │ │
│ └───────────────────────────────────┘ │
│ │
│ JUMP SQUATS │
│ ───────────────────────────────────── │
│ │
│ ┌─────────┐ ┌─────────┐ ┌─────────┐ │
│ │ 14 │ │ 52 │ │ 85% │ │
│ │ cal │ │ bpm │ │ effort │ │
│ └─────────┘ └─────────┘ └─────────┘ │
│ │
│ Burn Bar: ████████░░░░ 72% │
│ │
└─────────────────────────────────────────┘
```
**Key Features:**
- Video full screen avec coach
- Timer overlay (phase + countdown)
- Round indicator
- Progress bar
- Stats temps réel (calories, bpm si Apple Watch)
- Burn Bar
### During Rest Phase
```
┌─────────────────────────────────────────┐
│ │
│ ┌───────────────────────────────────┐ │
│ │ │ │
│ │ [COACH IN REST POSE] │ │
│ │ Stretching / breathing │ │
│ │ │ │
│ │ ┌─────────────────────────────┐ │ │
│ │ │ 💙 REST • 00:08 │ │ │
│ │ │ Next: Mountain Climbers │ │ │
│ │ │ ░░░░░░░░░░░░░░░░░░ 40% │ │ │
│ │ └─────────────────────────────┘ │ │
│ │ │ │
│ │ "Shake it out, you're │ │
│ │ doing great!" │ │
│ │ │ │
│ └───────────────────────────────────┘ │
│ │
│ Up Next: Mountain Climbers │
│ [GIF preview of next exercise] │
│ │
└─────────────────────────────────────────┘
```
### Workout Complete — Celebration
**Inspiration**: Apple Fitness+ celebration screen
```
┌─────────────────────────────────────────┐
│ │
│ 🎉 WORKOUT COMPLETE! │
│ │
│ ┌───────────────────────────────────┐ │
│ │ │ │
│ │ [ANIMATED RINGS] │ │
│ │ 🔥 🔥 🔥 │ │
│ │ │ │
│ └───────────────────────────────────┘ │
│ │
│ YOUR STATS │
│ ───────────────────────────────────── │
│ │
│ ┌─────────┐ ┌─────────┐ ┌─────────┐ │
│ │ 52 │ │ 4 │ │ 100% │ │
│ │ CALORIES│ │ MINUTES │ │ COMPLETE│ │
│ └─────────┘ └─────────┘ └─────────┘ │
│ │
│ Burn Bar │
│ ████████████░░░ You beat 73%! │
│ │
│ ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ │
│ │
│ 🔥 7 Day Streak! Keep it going! │
│ │
│ ┌───────────────────────────────────┐ │
│ │ SHARE YOUR WORKOUT │ │
│ └───────────────────────────────────┘ │
│ │
│ ┌───────────────────────────────────┐ │
│ │ ← BACK TO HOME │ │
│ └───────────────────────────────────┘ │
│ │
└─────────────────────────────────────────┘
```
---
## Content Strategy — 50+ Workouts au Launch
### Par Durée
| Duration | Format | Rounds | Count |
|----------|--------|--------|-------|
| 4 min | Classic Tabata | 8 rounds | 20 workouts |
| 8 min | Double Tabata | 16 rounds | 15 workouts |
| 12 min | Triple Tabata | 24 rounds | 10 workouts |
| 20 min | Tabata Marathon | 40 rounds | 5 workouts |
### Par Focus
- **Full Body** — 20 workouts
- **Upper Body** — 8 workouts
- **Lower Body** — 8 workouts
- **Core** — 8 workouts
- **Cardio Only** — 6 workouts
### Par Niveau
- **Beginner** — 15 workouts
- **Intermediate** — 20 workouts
- **Advanced** — 15 workouts
### Trainers (5 au launch)
1. **Emma** — Energy queen, beginner-friendly
2. **Jake** — Strength focus, motivating
3. **Mia** — Form perfectionist, technical
4. **Alex** — Cardio beast, intense
5. **Sofia** — Chill but effective, recovery
---
## Technical Requirements
### Video Pipeline
- HLS streaming (adaptive bitrate)
- 1080p minimum, 4K for featured
- Offline download for Premium
- Preload next exercise during rest
### Audio
- Multiple music tracks (by vibe)
- Coach voice-over (can be muted)
- Sound effects (beeps, transitions)
- Haptic feedback sync
### Apple Watch Integration
- Heart rate display
- Calories calculation
- Activity rings update
- Now Playing controls
### Offline Support
- Download workouts for offline
- Sync when back online
- Local stats caching
---
## Monetization
### Free Tier
- 3 workouts free forever
- Basic stats
- Ads between workouts
### Premium ($6.99/mo or $49.99/yr)
- Unlimited workouts
- All trainers
- Offline downloads
- Advanced stats & trends
- Apple Watch integration
- No ads
- Family Sharing (up to 5)
---
## Success Metrics
| Metric | Target (Month 3) |
|--------|------------------|
| DAU | 10,000 |
| Workout completion rate | 75% |
| 7-day retention | 40% |
| Premium conversion | 8% |
| Average workouts/user/week | 3.5 |
---
## Roadmap
### Phase 1 — MVP (Weeks 1-4)
- [ ] Home + Workouts tabs
- [ ] 20 workouts (4 min only)
- [ ] 2 trainers
- [ ] Basic timer + video player
### Phase 2 — Core (Weeks 5-8)
- [ ] Activity tab with stats
- [ ] 30 workouts total
- [ ] 4 trainers
- [ ] Apple Watch integration
### Phase 3 — Premium (Weeks 9-12)
- [ ] Browse + Profile tabs
- [ ] 50+ workouts
- [ ] 5 trainers
- [ ] Offline downloads
- [ ] Burn Bar
- [ ] Subscription system
---
*Document created: February 18, 2026*
*Version: 2.0*
*Status: Ready for Design Phase*

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@@ -9,7 +9,8 @@
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@@ -1728,6 +1732,12 @@
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"version": "15.0.3",
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@@ -6507,6 +6531,15 @@
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@@ -6565,6 +6598,17 @@
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},
"node_modules/expo-video": {
"version": "3.0.16",
"resolved": "https://registry.npmjs.org/expo-video/-/expo-video-3.0.16.tgz",
"integrity": "sha512-H1HlxcHGomZItqisGfW3YL/G9BHtNBfVSimDJcLuyxyU87wFnV8loO9tCjuhufkfh/aTa2sW5BYAjLjg9DvnBQ==",
"license": "MIT",
"peerDependencies": {
"expo": "*",
"react": "*",
"react-native": "*"
}
},
"node_modules/expo-web-browser": {
"version": "15.0.10",
"resolved": "https://registry.npmjs.org/expo-web-browser/-/expo-web-browser-15.0.10.tgz",

View File

@@ -5,12 +5,14 @@
"scripts": {
"start": "expo start",
"reset-project": "node ./scripts/reset-project.js",
"android": "expo start --android",
"ios": "expo start --ios",
"android": "expo run:android",
"ios": "expo run:ios",
"web": "expo start --web",
"lint": "expo lint"
},
"dependencies": {
"@expo-google-fonts/inter": "^0.4.2",
"@expo/ui": "~0.2.0-beta.9",
"@expo/vector-icons": "^15.0.3",
"@react-native-async-storage/async-storage": "^2.2.0",
"@react-navigation/bottom-tabs": "^7.4.0",
@@ -27,10 +29,12 @@
"expo-linear-gradient": "~15.0.8",
"expo-linking": "~8.0.11",
"expo-router": "~6.0.23",
"expo-sharing": "~14.0.8",
"expo-splash-screen": "~31.0.13",
"expo-status-bar": "~3.0.9",
"expo-symbols": "~1.0.8",
"expo-system-ui": "~6.0.9",
"expo-video": "~3.0.16",
"expo-web-browser": "~15.0.10",
"react": "19.1.0",
"react-dom": "19.1.0",

View File

@@ -0,0 +1,19 @@
<claude-mem-context>
# Recent Activity
<!-- This section is auto-generated by claude-mem. Edit content outside the tags. -->
### Feb 18, 2026
| ID | Time | T | Title | Read |
|----|------|---|-------|------|
| #4831 | 2:57 PM | 🔄 | Spacing Constants Enhanced with Semantic Aliases and Documentation | ~358 |
| #4830 | 2:56 PM | 🔵 | Design System Constants Index Review | ~293 |
| #4829 | " | 🔵 | Existing Animation Constants Reviewed | ~331 |
| #4828 | " | 🔵 | Color System Constants Review for BDSD Planning | ~412 |
| #4827 | " | 🔵 | Spacing Constants Implementation Review | ~254 |
| #4826 | " | 🔵 | Shadow System Constants Reviewed | ~296 |
| #4825 | " | 🔵 | Typography Constants Implementation Verification | ~264 |
| #4779 | 1:21 PM | 🔵 | Typography System Constants Analysis | ~354 |
| #4778 | 1:20 PM | 🔵 | Design System Color Constants Analysis | ~392 |
</claude-mem-context>

View File

@@ -1,51 +1,132 @@
/**
* TabataFit Animation System
* Liquid Glass — fluid, organic motion
*/
import { Easing } from 'react-native'
// ═══════════════════════════════════════════════════════════════════════════
// DURATIONS
// ═══════════════════════════════════════════════════════════════════════════
export const DURATION = {
SNAP: 60,
QUICK: 120,
FAST: 300,
NORMAL: 400,
SLOW: 600,
XSLOW: 1000,
BREATH: 1800,
INSTANT: 100,
FAST: 200,
NORMAL: 300,
SLOW: 500,
XSLOW: 800,
// Special
BREATH: 2500, // Breathing animation cycle
BREATH_HALF: 1250, // Half breath cycle
LIQUID: 600, // Liquid morph duration
RIPPLE: 400, // Tap ripple
PHASE_CHANGE: 300, // Phase transition
} as const
export const EASING = {
STANDARD: Easing.inOut(Easing.ease),
DECELERATE: Easing.out(Easing.ease),
LINEAR: Easing.linear,
// ═══════════════════════════════════════════════════════════════════════════
// EASING CURVES
// ═══════════════════════════════════════════════════════════════════════════
export const EASE = {
// Standard iOS easing
DEFAULT: Easing.bezier(0.25, 0.1, 0.25, 1),
EASE_OUT: Easing.bezier(0, 0, 0.2, 1),
EASE_IN: Easing.bezier(0.4, 0, 1, 1),
EASE_IN_OUT: Easing.bezier(0.4, 0, 0.2, 1),
// Liquid / Fluid
LIQUID: Easing.bezier(0.4, 0, 0.2, 1),
BOUNCE: Easing.bezier(0.68, -0.55, 0.265, 1.55),
// Sharp / Snappy
SNAPPY: Easing.bezier(0.2, 0, 0, 1),
} as const
// ═══════════════════════════════════════════════════════════════════════════
// SPRING CONFIGS (for react-native Animated.spring)
// ═══════════════════════════════════════════════════════════════════════════
export const SPRING = {
BOUNCY: { tension: 50, friction: 7 },
// Bouncy (playful)
BOUNCY: {
damping: 15,
stiffness: 180,
mass: 1,
},
// Gentle (smooth)
GENTLE: {
damping: 20,
stiffness: 100,
mass: 1,
},
// Snappy (quick)
SNAPPY: {
damping: 18,
stiffness: 300,
mass: 1,
},
// Slow (dramatic)
SLOW: {
damping: 25,
stiffness: 80,
mass: 1.5,
},
// Liquid (fluid)
LIQUID: {
damping: 20,
stiffness: 200,
mass: 1,
},
} as const
// ═══════════════════════════════════════════════════════════════════════════
// PRESET ANIMATION CONFIGS
// ═══════════════════════════════════════════════════════════════════════════
export const ANIMATION = {
PULSE_UP: {
toValue: 1.08,
duration: DURATION.SNAP,
useNativeDriver: true,
},
PULSE_DOWN: {
toValue: 1,
duration: DURATION.QUICK,
easing: EASING.DECELERATE,
useNativeDriver: true,
},
GRADIENT_CROSSFADE: {
toValue: 1,
duration: DURATION.SLOW,
easing: EASING.STANDARD,
useNativeDriver: true,
},
// Fade in
FADE_IN: {
toValue: 1,
duration: DURATION.NORMAL,
useNativeDriver: true,
easing: EASE.EASE_OUT,
},
BREATH_HALF: {
// Scale up (pop in)
POP_IN: {
spring: SPRING.BOUNCY,
},
// Slide up
SLIDE_UP: {
duration: DURATION.NORMAL,
easing: EASE.EASE_OUT,
},
// Liquid morph
LIQUID_MORPH: {
duration: DURATION.LIQUID,
easing: EASE.LIQUID,
},
// Breathing glow
BREATHE: {
duration: DURATION.BREATH,
easing: EASING.STANDARD,
useNativeDriver: false,
easing: EASE.EASE_IN_OUT,
},
// Timer tick pulse
TIMER_TICK: {
duration: 150,
easing: EASE.EASE_OUT,
},
// Phase transition
PHASE_TRANSITION: {
duration: DURATION.PHASE_CHANGE,
easing: EASE.EASE_IN_OUT,
},
} as const

View File

@@ -1,11 +1,23 @@
/**
* TabataFit Border Radius System
* Liquid Glass uses generous rounding
*/
export const RADIUS = {
NONE: 0,
XS: 4,
SM: 6,
SM: 8,
MD: 12,
LG: 16,
XL: 20,
'2XL': 28,
'3XL': 32,
'4XL': 36,
XXL: 24,
XXXL: 32,
// Special
FULL: 9999,
// Liquid glass specific
GLASS_CARD: 20,
GLASS_MODAL: 28,
GLASS_BUTTON: 14,
} as const

View File

@@ -1,76 +1,248 @@
export const PHASE_COLORS = {
IDLE: '#1E1E2E',
GET_READY: '#EAB308',
WORK: '#F97316',
REST: '#3B82F6',
COMPLETE: '#22C55E',
} as const
/**
* TabataFit Color System
* Liquid Glass Design (iOS 18.4 inspired)
*/
export const PHASE_GRADIENTS = {
IDLE: ['#0A0A14', '#12101F', '#1E1E2E'] as const,
GET_READY: ['#451A03', '#92400E', '#D97706'] as const,
WORK: ['#450A0A', '#991B1B', '#EA580C'] as const,
REST: ['#0C1929', '#1E3A5F', '#2563EB'] as const,
COMPLETE: ['#052E16', '#166534', '#16A34A'] as const,
} as const
export const ACCENT = {
ORANGE: '#F97316',
ORANGE_GLOW: '#FB923C',
RED_HOT: '#EF4444',
GOLD: '#FBBF24',
WHITE: '#FFFFFF',
WHITE_DIM: 'rgba(255, 255, 255, 0.6)',
WHITE_FAINT: 'rgba(255, 255, 255, 0.15)',
} as const
// ═══════════════════════════════════════════════════════════════════════════
// BRAND COLORS
// ═══════════════════════════════════════════════════════════════════════════
export const BRAND = {
PRIMARY: '#F97316',
PRIMARY_LIGHT: '#FB923C',
SECONDARY: '#FBBF24',
DANGER: '#EF4444',
SUCCESS: '#22C55E',
INFO: '#3B82F6',
PRIMARY: '#FF6B35',
PRIMARY_LIGHT: '#FF8C5A',
PRIMARY_DARK: '#E55A25',
SECONDARY: '#FFD60A',
DANGER: '#FF453A',
SUCCESS: '#30D158',
INFO: '#5AC8FA',
} as const
export const SURFACE = {
BASE: '#0A0A14',
RAISED: '#12101F',
ELEVATED: '#1E1E2E',
OVERLAY_LIGHT: 'rgba(255, 255, 255, 0.08)',
OVERLAY_MEDIUM: 'rgba(255, 255, 255, 0.15)',
OVERLAY_STRONG: 'rgba(255, 255, 255, 0.25)',
SCRIM: 'rgba(0, 0, 0, 0.3)',
// ═══════════════════════════════════════════════════════════════════════════
// BACKGROUND COLORS (Pure black for OLED)
// ═══════════════════════════════════════════════════════════════════════════
export const DARK = {
BASE: '#000000',
SURFACE: '#1C1C1E',
ELEVATED: '#2C2C2E',
OVERLAY_1: 'rgba(255, 255, 255, 0.05)',
OVERLAY_2: 'rgba(255, 255, 255, 0.08)',
OVERLAY_3: 'rgba(255, 255, 255, 0.12)',
SCRIM: 'rgba(0, 0, 0, 0.6)',
} as const
// ═══════════════════════════════════════════════════════════════════════════
// TEXT COLORS
// ═══════════════════════════════════════════════════════════════════════════
export const TEXT = {
PRIMARY: '#FFFFFF',
SECONDARY: 'rgba(255, 255, 255, 0.85)',
TERTIARY: 'rgba(255, 255, 255, 0.75)',
MUTED: 'rgba(255, 255, 255, 0.6)',
HINT: 'rgba(255, 255, 255, 0.45)',
DISABLED: 'rgba(255, 255, 255, 0.15)',
SECONDARY: '#EBEBF5',
TERTIARY: 'rgba(235, 235, 245, 0.6)',
MUTED: 'rgba(235, 235, 245, 0.5)',
HINT: 'rgba(235, 235, 245, 0.3)',
DISABLED: '#3A3A3C',
} as const
export const BORDER = {
SUBTLE: 'rgba(255, 255, 255, 0.05)',
LIGHT: 'rgba(255, 255, 255, 0.06)',
MEDIUM: 'rgba(255, 255, 255, 0.15)',
STRONG: 'rgba(255, 255, 255, 0.3)',
// ═══════════════════════════════════════════════════════════════════════════
// PHASE COLORS (Timer phases)
// ═══════════════════════════════════════════════════════════════════════════
export const PHASE = {
PREP: '#FF9500',
PREP_LIGHT: 'rgba(255, 149, 0, 0.2)',
WORK: '#FF6B35',
WORK_LIGHT: 'rgba(255, 107, 53, 0.2)',
WORK_GLOW: 'rgba(255, 107, 53, 0.5)',
REST: '#5AC8FA',
REST_LIGHT: 'rgba(90, 200, 250, 0.2)',
REST_GLOW: 'rgba(90, 200, 250, 0.5)',
COMPLETE: '#30D158',
COMPLETE_LIGHT: 'rgba(48, 209, 88, 0.2)',
} as const
export const APP_GRADIENTS = {
HOME: ['#0A0A14', '#1A0E2E', '#2D1810'] as const,
} as const
// ═══════════════════════════════════════════════════════════════════════════
// LIQUID GLASS SYSTEM
// ═══════════════════════════════════════════════════════════════════════════
export const GLASS = {
FILL: 'rgba(255, 255, 255, 0.03)',
FILL_MEDIUM: 'rgba(255, 255, 255, 0.06)',
FILL_STRONG: 'rgba(255, 255, 255, 0.10)',
BORDER: 'rgba(255, 255, 255, 0.08)',
BORDER_TOP: 'rgba(255, 255, 255, 0.15)',
BLUR_LIGHT: 15,
BLUR_MEDIUM: 25,
BLUR_HEAVY: 40,
BLUR_ATMOSPHERE: 60,
// Base glass surface
BASE: {
backgroundColor: 'rgba(255, 255, 255, 0.05)',
borderColor: 'rgba(255, 255, 255, 0.1)',
borderWidth: 1,
},
// Elevated glass (cards, modals)
ELEVATED: {
backgroundColor: 'rgba(255, 255, 255, 0.08)',
borderColor: 'rgba(255, 255, 255, 0.15)',
borderWidth: 1,
},
// Inset glass (inputs, controls)
INSET: {
backgroundColor: 'rgba(0, 0, 0, 0.25)',
borderColor: 'rgba(255, 255, 255, 0.05)',
borderWidth: 1,
},
// Brand tinted glass
TINTED: {
backgroundColor: 'rgba(255, 107, 53, 0.12)',
borderColor: 'rgba(255, 107, 53, 0.25)',
borderWidth: 1,
},
// Success tinted
SUCCESS_TINTED: {
backgroundColor: 'rgba(48, 209, 88, 0.12)',
borderColor: 'rgba(48, 209, 88, 0.25)',
borderWidth: 1,
},
// Blur intensities (for expo-blur)
BLUR_LIGHT: 20,
BLUR_MEDIUM: 40,
BLUR_HEAVY: 60,
BLUR_ULTRA: 80,
} as const
// ═══════════════════════════════════════════════════════════════════════════
// SHADOWS & GLOWS
// ═══════════════════════════════════════════════════════════════════════════
export const SHADOW = {
// Glass shadows
sm: {
shadowColor: '#000',
shadowOffset: { width: 0, height: 4 },
shadowOpacity: 0.15,
shadowRadius: 12,
elevation: 4,
},
md: {
shadowColor: '#000',
shadowOffset: { width: 0, height: 8 },
shadowOpacity: 0.25,
shadowRadius: 24,
elevation: 8,
},
lg: {
shadowColor: '#000',
shadowOffset: { width: 0, height: 12 },
shadowOpacity: 0.35,
shadowRadius: 40,
elevation: 12,
},
xl: {
shadowColor: '#000',
shadowOffset: { width: 0, height: 16 },
shadowOpacity: 0.4,
shadowRadius: 48,
elevation: 16,
},
// Brand glow
BRAND_GLOW: {
shadowColor: BRAND.PRIMARY,
shadowOffset: { width: 0, height: 0 },
shadowOpacity: 0.5,
shadowRadius: 20,
elevation: 10,
},
BRAND_GLOW_SUBTLE: {
shadowColor: BRAND.PRIMARY,
shadowOffset: { width: 0, height: 0 },
shadowOpacity: 0.3,
shadowRadius: 12,
elevation: 6,
},
// Liquid glow (breathing effect base)
LIQUID_GLOW: {
shadowColor: BRAND.PRIMARY,
shadowOffset: { width: 0, height: 0 },
shadowOpacity: 0.4,
shadowRadius: 30,
elevation: 15,
},
} as const
// ═══════════════════════════════════════════════════════════════════════════
// BORDER COLORS
// ═══════════════════════════════════════════════════════════════════════════
export const BORDER = {
GLASS: 'rgba(255, 255, 255, 0.1)',
GLASS_LIGHT: 'rgba(255, 255, 255, 0.05)',
GLASS_STRONG: 'rgba(255, 255, 255, 0.2)',
BRAND: 'rgba(255, 107, 53, 0.3)',
SUCCESS: 'rgba(48, 209, 88, 0.3)',
} as const
// ═══════════════════════════════════════════════════════════════════════════
// GRADIENTS
// ═══════════════════════════════════════════════════════════════════════════
export const GRADIENTS = {
// Video overlays
VIDEO_OVERLAY: ['transparent', 'rgba(0, 0, 0, 0.8)'],
VIDEO_TOP: ['rgba(0, 0, 0, 0.5)', 'transparent'],
// Phase gradients
WORK: [BRAND.PRIMARY, BRAND.PRIMARY_LIGHT],
REST: [PHASE.REST, '#7DD3FC'],
PREP: [PHASE.PREP, '#FFB340'],
// CTA
CTA: [BRAND.PRIMARY, BRAND.PRIMARY_LIGHT],
// Glass shimmers
GLASS_SHIMMER: ['rgba(255,255,255,0.1)', 'rgba(255,255,255,0.05)', 'rgba(255,255,255,0.1)'],
} as const
// ═══════════════════════════════════════════════════════════════════════════
// PHASE COLORS (For timer UI)
// ═══════════════════════════════════════════════════════════════════════════
export const PHASE_COLORS: Record<string, { fill: string; glow: string }> = {
PREP: {
fill: PHASE.PREP,
glow: 'rgba(255, 149, 0, 0.5)',
},
WORK: {
fill: BRAND.PRIMARY,
glow: PHASE.WORK_GLOW,
},
REST: {
fill: PHASE.REST,
glow: PHASE.REST_GLOW,
},
COMPLETE: {
fill: PHASE.COMPLETE,
glow: 'rgba(48, 209, 88, 0.5)',
},
}
// ═══════════════════════════════════════════════════════════════════════════
// BARREL EXPORT
// ═══════════════════════════════════════════════════════════════════════════
export const COLORS = {
...BRAND,
...DARK,
...TEXT,
...PHASE,
...SHADOW,
BRAND,
DARK,
TEXT,
PHASE,
GLASS,
BORDER,
GRADIENTS,
} as const

View File

@@ -1,16 +1,10 @@
export {
PHASE_COLORS,
PHASE_GRADIENTS,
ACCENT,
BRAND,
SURFACE,
TEXT,
BORDER,
APP_GRADIENTS,
GLASS,
} from './colors'
export { TYPOGRAPHY } from './typography'
export { SPACING, LAYOUT } from './spacing'
export { SHADOW, TEXT_SHADOW } from './shadows'
export { RADIUS } from './borderRadius'
export { DURATION, EASING, SPRING, ANIMATION } from './animations'
/**
* TabataFit Design System Constants
* Liquid Glass Design
*/
export * from './colors'
export * from './typography'
export * from './spacing'
export * from './borderRadius'
export * from './animations'

View File

@@ -1,25 +1,42 @@
/**
* TabataFit Spacing System
* Base: 4px
*/
export const SPACING = {
0: 0,
0.5: 2,
1: 4,
1.5: 6,
2: 8,
2.5: 10,
3: 12,
3.5: 14,
4: 16,
5: 20,
6: 24,
7: 28,
8: 32,
10: 40,
12: 48,
14: 56,
15: 60,
16: 64,
20: 80,
24: 96,
} as const
export const SPACE = {
NONE: 0,
XS: 4,
SM: 8,
MD: 16,
LG: 24,
XL: 32,
XXL: 48,
} as const
export const LAYOUT = {
PAGE_HORIZONTAL: 24,
SECTION_GAP: 40,
INLINE_GAP: 16,
CONTROLS_GAP: 32,
SCREEN_PADDING: 24,
CARD_PADDING: 16,
BUTTON_HEIGHT: 56,
BUTTON_HEIGHT_SM: 44,
TAB_BAR_HEIGHT: 83,
HEADER_HEIGHT: 44,
TOUCH_TARGET: 44,
} as const

View File

@@ -1,73 +1,262 @@
import type { TextStyle } from 'react-native'
/**
* TabataFit Typography System
* Inter font family, Apple-inspired scale
*/
import { TextStyle } from 'react-native'
// ═══════════════════════════════════════════════════════════════════════════
// FONT WEIGHTS (using Inter from @expo-google-fonts/inter)
// ═══════════════════════════════════════════════════════════════════════════
const FONT = {
REGULAR: 'Inter_400Regular',
MEDIUM: 'Inter_500Medium',
SEMIBOLD: 'Inter_600SemiBold',
BOLD: 'Inter_700Bold',
BLACK: 'Inter_900Black',
} as const
// ═══════════════════════════════════════════════════════════════════════════
// TYPE SCALE
// ═══════════════════════════════════════════════════════════════════════════
export const TYPOGRAPHY = {
countdown: {
fontSize: 140,
fontWeight: '900',
fontVariant: ['tabular-nums'],
// Display / Hero
HERO: {
fontFamily: FONT.BLACK,
fontSize: 48,
lineHeight: 56,
letterSpacing: -1,
} as TextStyle,
timeDisplay: {
fontSize: 72,
fontWeight: '900',
fontVariant: ['tabular-nums'],
// Large Title (like iOS)
LARGE_TITLE: {
fontFamily: FONT.BOLD,
fontSize: 34,
lineHeight: 41,
letterSpacing: 0.37,
} as TextStyle,
brandTitle: {
fontSize: 56,
fontWeight: '900',
letterSpacing: 12,
// Title 1
TITLE_1: {
fontFamily: FONT.BOLD,
fontSize: 28,
lineHeight: 34,
letterSpacing: 0.36,
} as TextStyle,
displayLarge: {
fontSize: 42,
fontWeight: '900',
letterSpacing: 4,
// Title 2
TITLE_2: {
fontFamily: FONT.BOLD,
fontSize: 22,
lineHeight: 28,
letterSpacing: 0.35,
} as TextStyle,
displaySmall: {
fontSize: 32,
fontWeight: '900',
letterSpacing: 20,
} as TextStyle,
buttonHero: {
fontSize: 30,
fontWeight: '900',
letterSpacing: 5,
} as TextStyle,
heading: {
fontSize: 24,
fontWeight: '800',
} as TextStyle,
buttonMedium: {
// Title 3
TITLE_3: {
fontFamily: FONT.SEMIBOLD,
fontSize: 20,
fontWeight: '700',
letterSpacing: 2,
lineHeight: 25,
letterSpacing: 0.38,
} as TextStyle,
body: {
fontSize: 18,
fontWeight: '700',
// Headline
HEADLINE: {
fontFamily: FONT.SEMIBOLD,
fontSize: 17,
lineHeight: 22,
letterSpacing: -0.41,
} as TextStyle,
caption: {
// Body
BODY: {
fontFamily: FONT.REGULAR,
fontSize: 17,
lineHeight: 22,
letterSpacing: -0.41,
} as TextStyle,
// Body Bold
BODY_BOLD: {
fontFamily: FONT.SEMIBOLD,
fontSize: 17,
lineHeight: 22,
letterSpacing: -0.41,
} as TextStyle,
// Callout
CALLOUT: {
fontFamily: FONT.REGULAR,
fontSize: 16,
fontWeight: '500',
lineHeight: 21,
letterSpacing: -0.32,
} as TextStyle,
label: {
// Subheadline
SUBHEADLINE: {
fontFamily: FONT.REGULAR,
fontSize: 15,
fontWeight: '800',
letterSpacing: 1,
lineHeight: 20,
letterSpacing: -0.24,
} as TextStyle,
overline: {
fontSize: 11,
fontWeight: '600',
textTransform: 'uppercase',
letterSpacing: 1,
// Footnote
FOOTNOTE: {
fontFamily: FONT.REGULAR,
fontSize: 13,
lineHeight: 18,
letterSpacing: -0.08,
} as TextStyle,
// Caption 1
CAPTION_1: {
fontFamily: FONT.REGULAR,
fontSize: 12,
lineHeight: 16,
letterSpacing: 0,
} as TextStyle,
// Caption 2
CAPTION_2: {
fontFamily: FONT.REGULAR,
fontSize: 11,
lineHeight: 13,
letterSpacing: 0.07,
} as TextStyle,
// ─────────────────────────────────────────────────────────────────────────
// SPECIAL: TIMER TYPOGRAPHY
// ─────────────────────────────────────────────────────────────────────────
// Main countdown number
TIMER_NUMBER: {
fontFamily: FONT.BLACK,
fontSize: 96,
lineHeight: 96,
letterSpacing: -2,
fontVariant: ['tabular-nums'],
} as TextStyle,
// Timer number (compact version)
TIMER_NUMBER_COMPACT: {
fontFamily: FONT.BLACK,
fontSize: 72,
lineHeight: 72,
letterSpacing: -1.5,
fontVariant: ['tabular-nums'],
} as TextStyle,
// Phase label (WORK, REST)
TIMER_PHASE: {
fontFamily: FONT.BOLD,
fontSize: 24,
lineHeight: 28,
letterSpacing: 2,
textTransform: 'uppercase',
} as TextStyle,
// Round indicator
TIMER_ROUND: {
fontFamily: FONT.MEDIUM,
fontSize: 17,
lineHeight: 22,
letterSpacing: 0,
fontVariant: ['tabular-nums'],
} as TextStyle,
// Exercise name during workout
EXERCISE_NAME: {
fontFamily: FONT.BOLD,
fontSize: 28,
lineHeight: 34,
letterSpacing: 0.36,
textAlign: 'center',
} as TextStyle,
// ─────────────────────────────────────────────────────────────────────────
// SPECIAL: BUTTON TYPOGRAPHY
// ─────────────────────────────────────────────────────────────────────────
BUTTON_LARGE: {
fontFamily: FONT.SEMIBOLD,
fontSize: 18,
lineHeight: 22,
letterSpacing: 0.5,
} as TextStyle,
BUTTON_MEDIUM: {
fontFamily: FONT.SEMIBOLD,
fontSize: 16,
lineHeight: 20,
letterSpacing: 0.3,
} as TextStyle,
BUTTON_SMALL: {
fontFamily: FONT.SEMIBOLD,
fontSize: 14,
lineHeight: 18,
letterSpacing: 0.2,
} as TextStyle,
// ─────────────────────────────────────────────────────────────────────────
// SPECIAL: CARD TYPOGRAPHY
// ─────────────────────────────────────────────────────────────────────────
CARD_TITLE: {
fontFamily: FONT.SEMIBOLD,
fontSize: 17,
lineHeight: 22,
letterSpacing: -0.41,
} as TextStyle,
CARD_SUBTITLE: {
fontFamily: FONT.REGULAR,
fontSize: 14,
lineHeight: 18,
letterSpacing: -0.15,
} as TextStyle,
CARD_METADATA: {
fontFamily: FONT.MEDIUM,
fontSize: 13,
lineHeight: 16,
letterSpacing: 0,
} as TextStyle,
// ─────────────────────────────────────────────────────────────────────────
// SPECIAL: STATS TYPOGRAPHY
// ─────────────────────────────────────────────────────────────────────────
STAT_VALUE: {
fontFamily: FONT.BLACK,
fontSize: 32,
lineHeight: 38,
letterSpacing: -0.5,
fontVariant: ['tabular-nums'],
} as TextStyle,
STAT_LABEL: {
fontFamily: FONT.MEDIUM,
fontSize: 12,
lineHeight: 16,
letterSpacing: 0.5,
textTransform: 'uppercase',
} as TextStyle,
// ─────────────────────────────────────────────────────────────────────────
// SPECIAL: OVERLINE / SECTION HEADER
// ─────────────────────────────────────────────────────────────────────────
OVERLINE: {
fontFamily: FONT.SEMIBOLD,
fontSize: 13,
lineHeight: 16,
letterSpacing: 1.5,
textTransform: 'uppercase',
} as TextStyle,
} as const
export { FONT }