# User Interface Design Goals

## Overall UX Vision

The Book Reading Tracker emphasizes **simplicity, speed, and clarity** above all else. The interface is designed for daily micro-interactions (<10 seconds) on mobile devices. Visual design is minimal and text-focused, prioritizing information density and fast comprehension over decorative elements.

Key principles:
- **Mobile-first:** Every interaction optimized for thumb-friendly tapping
- **Information hierarchy:** Most critical data (required pace, status) immediately visible
- **Minimal chrome:** No unnecessary navigation, buttons, or decorative elements
- **Fast feedback:** Immediate visual confirmation of actions (page logged, status updated)

## Key Interaction Paradigms

**3-Tap Logging Workflow:**
The core interaction is logging progress in 3 taps:
1. Tap book card from list
2. Tap/enter page number in modal
3. Tap save button

**Pull-to-Refresh:**
Standard mobile pattern for refreshing book list and recalculating paces

**Color-Coded Status:**
No need to read text - green/yellow/red instantly communicates on-track status

**Calendar as Read-Only Reference:**
Calendar is informational (show logged days, deadlines), not primary logging interface in MVP

## Core Screens and Views

**1. Book List Screen (Home/Main)**
- Primary screen showing all active books
- Each book card displays: cover thumbnail, title, author, required pace, actual pace, status indicator
- "Add Book" button prominently placed
- Bottom navigation (if needed): Home, Calendar

**2. Add Book Screen**
- Search input field
- Search results list with cover images
- Book detail preview with deadline date picker
- "Add to Reading List" button

**3. Log Progress Modal**
- Triggered by tapping book card
- Shows book title/cover for context
- Number input for current page
- "Save" and "Cancel" buttons
- Displays last logged page and date

**4. Book Detail Screen**
- Full book information (cover, title, author, total pages)
- Detailed progress metrics (pages read, days elapsed, pace trend)
- Calendar view for this specific book
- "Log Progress" button
- Edit deadline option
- Remove book option

**5. Calendar View Screen**
- Month view with dots/indicators on logged days
- Deadline dates marked distinctly
- Current date highlighted
- Tap date to see details (read-only in MVP)

**6. Settings Screen (Minimal)**
- App version
- Data export (future)
- Link to documentation/help

## Accessibility

**WCAG AA Compliance (Target):**
- Minimum color contrast ratios (4.5:1 for normal text)
- Color-coded status also includes text labels (not relying on color alone)
- Keyboard navigable (tab order, enter to submit)
- Semantic HTML for screen readers
- Touch targets minimum 44x44px

## Branding

**Minimal, Functional Aesthetic:**
- No specific brand identity required for MVP
- Clean, modern design with focus on readability
- Neutral color palette (grays, blues) with accent colors for status (green/yellow/red)
- System fonts or simple web-safe font stack
- Book cover images provide visual variety

**Visual Style:**
- Text-heavy, data-forward design
- Generous white space for mobile clarity
- Card-based layout for book list
- Subtle shadows/borders for depth

## Target Device and Platforms

**Web Responsive (Mobile-First):**
- **Primary:** Mobile browsers (iOS Safari, Android Chrome)
- **Secondary:** Desktop browsers for occasional access
- **PWA Installation:** Supported on both mobile and desktop

**Supported Platforms:**
- iOS (last 2 versions of Safari)
- Android (last 2 versions of Chrome)
- Desktop (Chrome, Firefox, Safari, Edge - last 2 versions)

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