This pull request implements **Mobile Responsiveness (v3) and a High-Fidelity Overhaul** for the dashboard view layer (`/dashboard`, `/catalog`, `/my-books`, `/profile`), matching the design aesthetics of the production mobile e-reader layout.
### Key Changes
1. **Re-engineered Floating Navigation Dock Capsule:**
- Detached bottom capsule, floating 16px off the bottom with rounded `30px` borders.
- Glassmorphic look in dark mode (`rgba(26, 26, 30, 0.75)`) and sepia theme in light mode (`rgba(244, 241, 234, 0.9)`).
- Removed `translateY` offset on the central "AI" action button (robot icon inside a solid green circle).
- Used `::deep` overrides to clean up text colors and icons, preventing browser visited link purple color defaults on `NavLink` items.
- Restored compact standalone text labels under the navigation icons.
2. **Dashboard Layout Scale Compression & Fold Optimization:**
- Compressed profile header avatar (`40px`), welcome title font size, and status pill spacing.
- Compressed the `concepts-linear-stack` height to `120px` with scrolling.
- Reduced book cover heights inside `MyBooks` to `200px` on mobile viewports.
3. **Current Reading Widget & Layout Margin Safety:**
- Localized the widget button label to `"Kontynuuj czytanie"`.
- Used safe area clearances (`calc(1.5rem + 72px + env(safe-area-inset-bottom))`) at the bottom of pages to prevent content from being covered by the capsule.
4. **Resolved Horizontal Layout Width Blowout (Grid Fix):**
- Discovered that `.secondary-grid` was using flex layout inherited from desktop rather than grid layout on mobile.
- Nowrap paragraphs in the concept list stretched the flex container to over 12,000 pixels wide, breaking the entire dashboard layout width.
- Overrode `.secondary-grid` to `display: grid !important` on mobile, properly constraining layout width and allowing nowrap concept text truncation.
### Verification
- All code changes compiled successfully under `dotnet build NexusReader.slnx --no-restore` (0 errors).
- Validated correct layouts in list view, chart view, and light/dark theme toggles on a Samsung Galaxy S20 Ultra (412x915) viewport.
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Co-authored-by: Marek Jasiński <jasins.marek@gmail.com>
Reviewed-on: #80
Co-authored-by: Antigravity <antigravity@google.com>
Co-committed-by: Antigravity <antigravity@google.com>
Antigravity
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