feat: implement dashboard mobile responsiveness v3 overhaul (#80)

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.

---------

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>

src/NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor

@@ -7,12 +7,12 @@
     {
         <div @key='"current-reading-book"' class="card-layout">
             <div class="book-cover">
-                <img src="@(Book.CoverUrl ?? "https://via.placeholder.com/120x180?text=No+Cover")" alt="@Book.Title" />
+                <img src="@(string.IsNullOrEmpty(Book.CoverUrl) ? "https://via.placeholder.com/120x180?text=No+Cover" : Book.CoverUrl)" alt="@Book.Title" aria-describedby="book-title-@Book.Id" />
             </div>
             
             <div class="book-details">
                 <div class="header-info">
-                    <h3 class="book-title">@Book.Title</h3>
+                    <h3 id="book-title-@Book.Id" class="book-title">@Book.Title</h3>
                     <span class="author-name">by @Book.Author.Name</span>
                 </div>
 
@@ -41,8 +41,8 @@
                 }
 
                 <div class="actions">
-                    <button class="btn-nexus outline" @onclick="HandleContinueReading">
+                    <button class="btn-nexus outline" @onclick="HandleContinueReading" aria-label="Kontynuuj czytanie">
-                        Continue Reading
+                        Kontynuuj czytanie
                         <NexusIcon Name="arrow-right" Size="16" />
                     </button>
                 </div>

src/NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor.css

@@ -194,23 +194,102 @@
     margin: 0;
 }
 
-@media (max-width: 768px) {
+@media (max-width: 767px) {
+    .current-reading-card {
+        background: #1e1e22; /* Lighter anthracite slate for depth */
+        box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3); /* Ambient card shadow */
+        padding: 14px;
+        border-radius: 16px;
+        border: 1px solid var(--border);
+    }
+
     .card-layout {
         flex-direction: column;
-        align-items: center;
+        align-items: stretch;
-        text-align: center;
+        text-align: left;
-        gap: 1.5rem;
+        gap: 0.75rem;
     }
     
-    .book-title, .chapter-name {
+    .book-cover {
+        align-self: center;
+        width: 90px;
+    }
+    
+    .book-details {
+        width: 100%;
+        text-align: left;
+    }
+    
+    .book-title {
+        font-size: 1.25rem;
+        text-align: left;
         white-space: normal;
     }
+
+    .author-name {
+        text-align: left;
+        font-size: 0.8rem;
+    }
     
     .header-info, .chapter-progress {
-        align-items: center;
+        align-items: stretch;
+    }
+
+    .chapter-name {
+        white-space: normal;
+        font-size: 0.8rem;
+    }
+    
+    .chapter-progress {
+        margin: 0.5rem 0; /* Margin separator before tracking bar */
+        width: 100%;
+    }
+    
+    .progress-bar-container {
+        width: 100%;
+    }
+
+    .book-excerpt {
+        display: -webkit-box; /* Normal display to wrap synopsis */
+        overflow: hidden;
+        -webkit-line-clamp: 2;
+        -webkit-box-orient: vertical;
+        margin-bottom: 0.75rem;
+        text-align: left;
+        font-size: 0.85rem;
+    }
+    
+    .actions {
+        width: 100%;
+        margin-top: 0.25rem;
+    }
+    
+    .actions .btn-nexus.outline {
+        width: 100%;
+        justify-content: center;
+        padding: 0.75rem 1.25rem; /* Larger touch target */
+        box-sizing: border-box;
+        background: transparent !important;
+        color: var(--accent) !important;
+        border: 1px solid var(--accent) !important;
+        display: inline-flex !important;
+        align-items: center !important;
+        font-weight: 600 !important;
+    }
+
+    .actions .btn-nexus.outline:hover {
+        background: var(--accent-glow) !important;
+        color: var(--accent) !important;
+    }
+
+    .theme-light .current-reading-card {
+        background: #ffffff; /* Pure white card surface for light theme */
+        box-shadow: 0 12px 24px rgba(139, 130, 115, 0.12);
     }
 }
 
+
+
 /* ============================================================
    LIGHT THEME OVERRIDES — "Warm Paper / Soft Sepia"
    ============================================================ */

src/NexusReader.UI.Shared/Layout/MainHubLayout.razor

@@ -1,4 +1,5 @@
 @inherits LayoutComponentBase
+@implements IDisposable
 @using NexusReader.UI.Shared.Components.Molecules
 @using NexusReader.UI.Shared.Components.Atoms
 @using NexusReader.Application.Abstractions.Services
@@ -12,7 +13,7 @@
     </div>
 }
 
-<div @key='"hub-container"' class="hub-container @(_isMobileMenuOpen ? "mobile-menu-open" : "")">
+<div @key='"hub-container"' class="hub-container @(_isMobileMenuOpen ? "mobile-menu-open" : "") @(ThemeService.IsLightMode ? "theme-light" : "theme-dark")">
     <AuthorizeView>
         <Authorized>
             <!-- Mobile Sticky Top-bar -->
@@ -110,6 +111,32 @@
                     </button>
                 </div>
             </aside>
+
+            <!-- Reader Mobile Dock v3 -->
+            <nav class="reader-mobile-dock">
+                <NavLink class="dock-item" href="/dashboard" Match="NavLinkMatch.All" title="Pulpit">
+                    <NexusIcon Name="home" Size="20" />
+                    <span class="dock-text">Pulpit</span>
+                </NavLink>
+                <NavLink class="dock-item" href="/catalog" title="Katalog">
+                    <NexusIcon Name="layout" Size="20" />
+                    <span class="dock-text">Katalog</span>
+                </NavLink>
+                <NavLink class="dock-item central-action" href="/intelligence" title="Globalne AI">
+                    <div class="central-action-inner">
+                        <NexusIcon Name="robot" Size="20" />
+                    </div>
+                    <span class="dock-text">AI</span>
+                </NavLink>
+                <NavLink class="dock-item" href="/my-books" title="Moje">
+                    <NexusIcon Name="book-open" Size="20" />
+                    <span class="dock-text">Moje</span>
+                </NavLink>
+                <NavLink class="dock-item" href="/profile" title="Konto">
+                    <NexusIcon Name="user" Size="20" />
+                    <span class="dock-text">Konto</span>
+                </NavLink>
+            </nav>
         </Authorized>
     </AuthorizeView>
 
@@ -124,6 +151,7 @@
     [Inject] private AuthenticationStateProvider AuthStateProvider { get; set; } = default!;
     [Inject] private IIdentityService IdentityService { get; set; } = default!;
     [Inject] private NavigationManager NavigationManager { get; set; } = default!;
+    [Inject] private IThemeService ThemeService { get; set; } = default!;
 
     private bool _isSyncing = false;
     private bool _isMobileMenuOpen = false;
@@ -131,6 +159,8 @@
 
     protected override async Task OnInitializedAsync()
     {
+        ThemeService.OnThemeChanged += HandleThemeChanged;
+
         if (_isSyncing) return;
         
         var authState = await AuthStateProvider.GetAuthenticationStateAsync();
@@ -142,6 +172,11 @@
         }
     }
 
+    private void HandleThemeChanged(ThemeMode mode)
+    {
+        InvokeAsync(StateHasChanged);
+    }
+
     protected override void OnAfterRender(bool firstRender)
     {
         if (firstRender)
@@ -167,4 +202,10 @@
         await IdentityService.LogoutAsync();
         NavigationManager.NavigateTo("/account/logout-form", true);
     }
+
+    public void Dispose()
+    {
+        ThemeService.OnThemeChanged -= HandleThemeChanged;
+        GC.SuppressFinalize(this);
+    }
 }

src/NexusReader.UI.Shared/Layout/MainHubLayout.razor.css

@@ -194,7 +194,11 @@
     display: none;
 }
 
-@media (max-width: 768px) {
+.reader-mobile-dock {
+    display: none;
+}
+
+@media (max-width: 767px) {
     .nexus-mobile-topbar {
         display: flex;
         align-items: center;
@@ -262,7 +266,7 @@
         width: 32px;
         height: 32px;
         background: linear-gradient(135deg, var(--nexus-neon) 0%, #0099ff 100%);
-        border: 1px solid rgba(255, 255, 255, 0.1);
+        border: 1px solid var(--border);
         border-radius: 50%;
         display: flex;
         align-items: center;
@@ -388,7 +392,6 @@
     /* User avatar mini: solid accent, white text, no neon glow */
     .theme-light .user-avatar-mini {
         background: #10b981;
-        border: 1px solid rgba(0, 0, 0, 0.08);
         color: #ffffff;
         box-shadow: 0 2px 8px rgba(16, 185, 129, 0.15);
     }
@@ -414,8 +417,144 @@
         box-shadow: 10px 0 30px rgba(139, 130, 115, 0.2);
     }
 
-    /* Mobile topbar: warm paper border */
+
-    .theme-light .nexus-mobile-topbar {
+    /* Content padding for bottom navigation dock */
-        border-bottom-color: rgba(0, 0, 0, 0.08);
+    .hub-content {
+        padding: 1.25rem 1.25rem calc(1.25rem + 96px + env(safe-area-inset-bottom, 0px)) !important;
+    }
+
+    /* Reader Mobile Dock v3 */
+    ::deep .reader-mobile-dock {
+        display: flex;
+        position: fixed;
+        bottom: calc(16px + env(safe-area-inset-bottom, 0px));
+        left: 20px;
+        right: 20px;
+        height: 64px;
+        background: rgba(26, 26, 30, 0.75); /* Translucent dark mode */
+        backdrop-filter: blur(20px);
+        -webkit-backdrop-filter: blur(20px);
+        border: 1px solid var(--border); /* Microscopic perimeter border */
+        border-radius: 30px; /* Floating capsule rounded borders */
+        z-index: 150;
+        padding: 0 16px;
+        justify-content: space-around;
+        align-items: center;
+        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
+    }
+    
+    ::deep .dock-item {
+        display: flex;
+        flex-direction: column;
+        align-items: center;
+        justify-content: center;
+        flex: 1;
+        height: 100%;
+        color: var(--text-muted);
+        text-decoration: none;
+        transition: color 0.2s ease, filter 0.2s ease;
+        position: relative;
+        gap: 2px;
+    }
+    
+    ::deep .dock-item:hover, ::deep .dock-item.active {
+        color: var(--accent) !important;
+        filter: drop-shadow(0 0 4px var(--accent-glow)); /* Clean accent glow drop-shadow */
+    }
+
+    ::deep .dock-item ::deep svg,
+    ::deep .dock-item ::deep .nexus-icon,
+    ::deep .dock-item svg,
+    ::deep .dock-item .nexus-icon {
+        color: inherit !important;
+        fill: currentColor !important;
+    }
+    
+    ::deep .dock-text {
+        display: block !important;
+        font-size: 10px;
+        font-weight: 500;
+        margin-top: 2px;
+        white-space: nowrap;
+        color: inherit;
+    }
+
+    /* Central action button style */
+    ::deep .dock-item.central-action {
+        display: flex;
+        flex-direction: column;
+        align-items: center;
+        justify-content: center;
+        position: relative;
+        flex: 1;
+        height: 100%;
+        gap: 2px;
+        margin-top: 0;
+        transform: none !important;
+        z-index: 160;
+    }
+    
+    ::deep .central-action-inner {
+        width: 36px;
+        height: 36px;
+        border-radius: 50%;
+        background: var(--accent); /* Solid green background */
+        color: #ffffff !important; /* White robot icon */
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        border: none !important;
+        box-shadow: 0 4px 10px rgba(0, 255, 153, 0.3);
+        transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.2s ease;
+    }
+
+    ::deep .central-action-inner ::deep svg,
+    ::deep .central-action-inner ::deep .nexus-icon,
+    ::deep .central-action-inner svg,
+    ::deep .central-action-inner .nexus-icon {
+        color: #ffffff !important;
+        fill: currentColor !important;
+    }
+    
+    ::deep .dock-item.central-action:hover .central-action-inner,
+    ::deep .dock-item.central-action.active .central-action-inner {
+        transform: scale(1.05);
+        box-shadow: 0 4px 14px rgba(0, 255, 153, 0.5);
+    }
+
+    ::deep .central-action-glow {
+        display: none; /* Purged background glow */
+    }
+
+    /* Light Theme Overrides */
+    .theme-light ::deep .reader-mobile-dock {
+        background: rgba(244, 241, 234, 0.9); /* Translucent light mode warm paper background */
+        box-shadow: 0 8px 30px rgba(139, 130, 115, 0.15);
+    }
+    
+    .theme-light ::deep .dock-item {
+        color: var(--text-muted);
+    }
+    
+    .theme-light ::deep .dock-item:hover, .theme-light ::deep .dock-item.active {
+        color: var(--accent) !important;
+        filter: drop-shadow(0 0 3px var(--accent-glow));
+    }
+    
+    .theme-light ::deep .central-action-inner {
+        background: var(--accent) !important;
+        color: #ffffff !important;
+        border: none !important;
+        box-shadow: 0 4px 10px rgba(16, 185, 129, 0.25) !important;
+    }
+    
+    .theme-light ::deep .dock-item.central-action:hover .central-action-inner,
+    .theme-light ::deep .dock-item.central-action.active .central-action-inner {
+        box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35) !important;
+        transform: scale(1.05);
+    }
+    
+    .theme-light ::deep .central-action-glow {
+        display: none;
     }
 }

src/NexusReader.UI.Shared/Pages/Catalog.razor.css

@@ -388,3 +388,23 @@
     color: var(--text-main);
     text-shadow: none;
 }
+
+@media (max-width: 767px) {
+    .catalog-page {
+        padding: 1.5rem 1rem calc(1.5rem + 72px + env(safe-area-inset-bottom, 0px)) !important;
+    }
+    
+    .catalog-header {
+        margin-bottom: 1.5rem;
+    }
+    
+    .catalog-header h1 {
+        font-size: 1.75rem;
+    }
+    
+    .catalog-grid, .loading-grid {
+        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
+        gap: 1.25rem;
+    }
+}
+

src/NexusReader.UI.Shared/Pages/ConceptsDashboard.razor.css

@@ -453,3 +453,17 @@
 .theme-light .header-actions .btn-action:hover {
     box-shadow: 0 0 12px rgba(16, 185, 129, 0.1);
 }
+
+@media (max-width: 767px) {
+    .concepts-dashboard-container {
+        padding: 1rem 0.75rem calc(1.5rem + 72px + env(safe-area-inset-bottom, 0px)) !important;
+        gap: 1rem;
+    }
+    .dashboard-header {
+        padding: 1rem;
+        gap: 0.75rem;
+    }
+    .header-title h1 {
+        font-size: 1.25rem;
+    }
+}

src/NexusReader.UI.Shared/Pages/Dashboard.razor

@@ -7,6 +7,8 @@
 @inject IIdentityService IdentityService
 @inject NavigationManager NavigationManager
 @inject ISyncService SyncService
+@inject IJSRuntime JS
+@using Microsoft.JSInterop
 @attribute [Authorize]
 @implements IDisposable
 
@@ -54,55 +56,86 @@
                 <section class="integration-card glass-panel">
                     <div class="panel-header">
                         <h4>Integracja Wiedzy</h4>
-                        <NexusIcon Name="arrow-right" Size="16" />
+                        <button class="view-toggle-btn" @onclick="ToggleGraphMode" type="button" aria-label="Toggle View">
+                            <NexusIcon Name="@(_showSimplifiedList ? "map" : "list")" Size="14" />
+                            <span>@(_showSimplifiedList ? "Pokaż Wykres" : "Pokaż Listę")</span>
+                        </button>
                     </div>
-                    <div class="graph-placeholder">
+
-                        <div class="graph-node central" title="Ośrodek Wiedzy Nexus Reader"></div>
+                    @if (_showSimplifiedList)
-                        
-                        @if (_profile?.MappedConcepts != null && _profile.MappedConcepts.Any())
-                        {
-                            <div @key='"satellite-concepts-container"' style="display: contents;">
-                                @for (int i = 0; i < _profile.MappedConcepts.Count; i++)
-                                {
-                                    var concept = _profile.MappedConcepts[i];
-                                    var angle = i * (360.0 / _profile.MappedConcepts.Count);
-                                    var dist = 65;
-                                    <div @key="concept.Id" class="graph-node satellite" 
-                                         style="--angle: @(angle)deg; --dist: @(dist)px;"
-                                         title="[@concept.Type] @concept.Content"
-                                         @onmouseover="() => SetHoveredConcept(concept)"
-                                         @onmouseout="ClearHoveredConcept">
-                                    </div>
-                                }
-                            </div>
-                        }
-                        else
-                        {
-                            <div @key='"satellite-placeholders-container"' style="display: contents;">
-                                <div @key='"satellite-placeholder-0"' class="graph-node satellite" style="--angle: 0deg; --dist: 60px;"></div>
-                                <div @key='"satellite-placeholder-1"' class="graph-node satellite" style="--angle: 120deg; --dist: 50px;"></div>
-                                <div @key='"satellite-placeholder-2"' class="graph-node satellite" style="--angle: 240deg; --dist: 70px;"></div>
-                            </div>
-                        }
-                        
-                        <div class="active-node-label">
-                            @(string.IsNullOrEmpty(_hoveredConceptLabel) ? "TU JESTEŚ" : _hoveredConceptLabel)
-                        </div>
-                    </div>
-                    
-                    @if (_hoveredConcept != null)
                     {
-                        <div class="concept-detail-toast">
+                        <div class="concepts-linear-stack">
-                            <span class="concept-type">@_hoveredConcept.Type</span>
+                            @if (_profile?.MappedConcepts != null && _profile.MappedConcepts.Any())
-                            <p class="concept-content">@_hoveredConcept.Content</p>
+                            {
+                                <div class="concept-linear-list">
+                                    @foreach (var concept in _profile.MappedConcepts)
+                                    {
+                                        <div class="concept-linear-item">
+                                            <span class="concept-badge @concept.Type.ToLower()">@concept.Type</span>
+                                            <span class="concept-text" title="@concept.Content">@concept.Content</span>
+                                        </div>
+                                    }
+                                </div>
+                            }
+                            else
+                            {
+                                <div class="concepts-empty-list">
+                                    <NexusIcon Name="info" Size="20" />
+                                    <p>Brak pojęć. Rozpocznij czytanie, aby AI wyodrębniło kluczowe koncepty.</p>
+                                </div>
+                            }
                         </div>
                     }
                     else
                     {
-                        <div class="concept-detail-toast placeholder">
+                        <div class="graph-placeholder">
-                            <span class="concept-type">Mapowanie AI</span>
+                            <div class="graph-node central" title="Ośrodek Wiedzy Nexus Reader"></div>
-                            <p class="concept-content">Najedź na węzeł, aby zbadać pojęcie wydobyte przez Nexus AI.</p>
+                            
+                            @if (_profile?.MappedConcepts != null && _profile.MappedConcepts.Any())
+                            {
+                                <div @key='"satellite-concepts-container"' style="display: contents;">
+                                    @for (int i = 0; i < _profile.MappedConcepts.Count; i++)
+                                    {
+                                        var concept = _profile.MappedConcepts[i];
+                                        var angle = i * (360.0 / _profile.MappedConcepts.Count);
+                                        var dist = 65;
+                                        <div @key="concept.Id" class="graph-node satellite" 
+                                             style="--angle: @(angle)deg; --dist: @(dist)px;"
+                                             title="[@concept.Type] @concept.Content"
+                                             @onmouseover="() => SetHoveredConcept(concept)"
+                                             @onmouseout="ClearHoveredConcept">
+                                        </div>
+                                    }
+                                </div>
+                            }
+                            else
+                            {
+                                <div @key='"satellite-placeholders-container"' style="display: contents;">
+                                    <div @key='"satellite-placeholder-0"' class="graph-node satellite" style="--angle: 0deg; --dist: 60px;"></div>
+                                    <div @key='"satellite-placeholder-1"' class="graph-node satellite" style="--angle: 120deg; --dist: 50px;"></div>
+                                    <div @key='"satellite-placeholder-2"' class="graph-node satellite" style="--angle: 240deg; --dist: 70px;"></div>
+                                </div>
+                            }
+                            
+                            <div class="active-node-label">
+                                @(string.IsNullOrEmpty(_hoveredConceptLabel) ? "TU JESTEŚ" : _hoveredConceptLabel)
+                            </div>
                         </div>
+                        
+                        @if (_hoveredConcept != null)
+                        {
+                            <div class="concept-detail-toast">
+                                <span class="concept-type">@_hoveredConcept.Type</span>
+                                <p class="concept-content">@_hoveredConcept.Content</p>
+                            </div>
+                        }
+                        else
+                        {
+                            <div class="concept-detail-toast placeholder">
+                                <span class="concept-type">Mapowanie AI</span>
+                                <p class="concept-content">Najedź na węzeł, aby zbadać pojęcie wydobyte przez Nexus AI.</p>
+                            </div>
+                        }
                     }
                 </section>
 
@@ -173,6 +206,32 @@
     private UserProfileDto? _profile;
     private MappedConceptDto? _hoveredConcept;
     private string _hoveredConceptLabel = string.Empty;
+    private bool _showSimplifiedList = false;
+
+    protected override async Task OnAfterRenderAsync(bool firstRender)
+    {
+        if (firstRender)
+        {
+            try
+            {
+                var isMobile = await JS.InvokeAsync<bool>("eval", "window.innerWidth < 768");
+                if (isMobile)
+                {
+                    _showSimplifiedList = true;
+                    StateHasChanged();
+                }
+            }
+            catch
+            {
+                // Fallback for tests or prerendering
+            }
+        }
+    }
+
+    private void ToggleGraphMode()
+    {
+        _showSimplifiedList = !_showSimplifiedList;
+    }
 
     protected override async Task OnInitializedAsync()
     {

src/NexusReader.UI.Shared/Pages/Dashboard.razor.css

@@ -524,28 +524,29 @@
 }
 
 /* Mobile Dashboard Overrides */
-@media (max-width: 768px) {
+@media (max-width: 767px) {
     .dashboard-content {
-        padding: 1.25rem 0.75rem;
+        padding: 0.5rem 0.5rem calc(1.5rem + 64px) !important;
     }
 
     .profile-header {
-        padding: 1.5rem 1rem;
+        padding: 10px 12px;
-        border-radius: 16px;
+        background: var(--bg-surface);
+        border: 1px solid var(--border);
+        border-radius: 12px;
+        margin-bottom: 10px;
     }
 
     .profile-visual {
-        flex-direction: row;
+        display: grid;
-        flex-wrap: wrap;
+        grid-template-columns: auto 1fr;
-        justify-content: flex-start;
         align-items: center;
-        text-align: left;
+        gap: 0.5rem;
-        gap: 1.25rem;
     }
 
     .avatar-wrapper {
-        width: 70px;
+        width: 40px;
-        height: 70px;
+        height: 40px;
         margin: 0;
     }
 
@@ -553,45 +554,91 @@
         flex: 1;
     }
 
-    .user-name {
+    .username {
-        font-size: 1.5rem;
+        font-size: 1.05rem;
-        margin-bottom: 0.25rem;
+        font-weight: 600;
+        text-align: left;
+        margin: 0;
+        letter-spacing: 0px;
     }
 
     .user-role {
-        font-size: 0.85rem;
+        font-size: 0.8rem;
     }
 
     .status-pills {
+        grid-column: span 2;
+        display: flex;
+        flex-direction: row;
+        justify-content: space-between;
         width: 100%;
-        margin-top: 0.5rem;
+        gap: 0.25rem;
-        justify-content: flex-start;
+        margin-top: 0.15rem;
-        flex-wrap: wrap;
-        gap: 0.5rem;
     }
 
     .status-pill {
-        padding: 0.35rem 0.75rem;
+        flex: 1;
-        font-size: 0.75rem;
+        display: flex;
+        justify-content: center;
+        align-items: center;
+        padding: 0.25rem 0.4rem;
+        font-size: 0.65rem;
+        gap: 0.2rem;
+        white-space: nowrap;
+        border-radius: 6px;
+    }
+
+    .section-title {
+        font-size: 1.25rem;
+        font-weight: 700;
+        letter-spacing: -0.5px;
+        margin-top: 4px;
+        margin-bottom: 8px;
+        color: var(--text-main);
     }
 
     .main-grid {
         grid-template-columns: 1fr !important;
-        gap: 1.25rem !important;
+        gap: 0.75rem !important;
     }
 
     .secondary-grid {
+        display: grid !important;
         grid-template-columns: 1fr !important;
-        gap: 1.25rem !important;
+        gap: 0.75rem !important;
     }
 
     /* Force all widgets to take 100% width and fit inside parent container nicely */
     .glass-panel {
         width: 100% !important;
-        padding: 1.25rem !important;
+        padding: 12px !important;
         box-sizing: border-box;
     }
 
+    /* Compress Knowledge Graph and Concept stack heights to maximize visible fold space */
+    .graph-placeholder {
+        height: 120px;
+    }
+
+    .concepts-linear-stack {
+        height: 120px !important;
+        max-height: 120px !important;
+        overflow-y: auto !important;
+        padding-right: 4px;
+    }
+
+    .concept-linear-item {
+        padding: 6px 8px !important;
+        font-size: 0.75rem !important;
+        gap: 0.5rem !important;
+        min-height: auto !important; /* Prevent touch target min-height expansion */
+    }
+
+    .concept-badge {
+        padding: 2px 6px !important;
+        font-size: 0.65rem !important;
+    }
+
     /* Expand touch-targets to 48px min height for interactive elements */
     .btn-nexus, .quiz-option, .satellite, .logout-btn, .nav-item, .quiz-item {
         min-height: 48px;
@@ -725,5 +772,188 @@
     color: var(--accent);
 }
 
+/* --- Concepts Linear Stack for Mobile/Utility Switch --- */
+.concepts-linear-stack {
+    height: 180px;
+    display: flex;
+    flex-direction: column;
+    overflow-y: auto;
+    gap: 0.5rem;
+    padding-right: 0.5rem;
+}
+
+.concept-linear-list {
+    display: flex;
+    flex-direction: column;
+    gap: 0.5rem;
+}
+
+.concept-linear-item {
+    display: flex;
+    align-items: center;
+    gap: 0.75rem;
+    padding: 0.6rem 0.75rem;
+    background: rgba(255, 255, 255, 0.02);
+    border: 1px solid var(--border);
+    border-radius: 8px;
+    font-size: 0.85rem;
+    color: var(--text-main);
+    transition: all 0.2s ease;
+}
+
+.concept-linear-item:hover {
+    background: rgba(255, 255, 255, 0.04);
+    border-color: rgba(0, 255, 153, 0.2);
+    transform: translateX(2px);
+}
+
+.concept-badge {
+    padding: 2px 8px;
+    border-radius: 4px;
+    font-size: 0.7rem;
+    font-weight: 700;
+    text-transform: uppercase;
+    letter-spacing: 0.5px;
+    white-space: nowrap;
+}
+
+.concept-badge.rule {
+    background: rgba(255, 70, 70, 0.1);
+    color: #ff8b8b;
+    border: 1px solid rgba(255, 70, 70, 0.2);
+}
+
+.concept-badge.definition {
+    background: rgba(255, 176, 58, 0.1);
+    color: #ffd18c;
+    border: 1px solid rgba(255, 176, 58, 0.2);
+}
+
+.concept-badge.table {
+    background: rgba(217, 70, 239, 0.1);
+    color: #f5d0fe;
+    border: 1px solid rgba(217, 70, 239, 0.2);
+}
+
+.concept-badge.section {
+    background: rgba(59, 130, 246, 0.1);
+    color: #93c5fd;
+    border: 1px solid rgba(59, 130, 246, 0.2);
+}
+
+.concept-badge.bridge {
+    background: rgba(6, 182, 212, 0.1);
+    color: #67e8f9;
+    border: 1px solid rgba(6, 182, 212, 0.2);
+}
+
+.concept-badge.concept {
+    background: rgba(0, 210, 196, 0.05);
+    color: #e0e0e0;
+    border: 1px solid rgba(0, 210, 196, 0.2);
+}
+
+.concept-text {
+    flex: 1;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+    font-weight: 500;
+}
+
+.concepts-empty-list {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    justify-content: center;
+    height: 100%;
+    color: var(--text-muted);
+    font-size: 0.85rem;
+    text-align: center;
+    gap: 0.5rem;
+}
+
+.concepts-empty-list p {
+    margin: 0;
+}
+
+.view-toggle-btn {
+    display: inline-flex;
+    align-items: center;
+    gap: 0.35rem;
+    background: rgba(255, 255, 255, 0.03);
+    border: 1px solid var(--border);
+    color: var(--text-muted);
+    padding: 0.35rem 0.75rem;
+    border-radius: 6px;
+    font-size: 0.75rem;
+    font-weight: 600;
+    cursor: pointer;
+    transition: all 0.2s ease;
+}
+
+.view-toggle-btn:hover {
+    background: rgba(0, 255, 153, 0.08);
+    border-color: var(--accent);
+    color: var(--accent);
+}
+
+/* --- Light Theme Overrides for Concepts Stack --- */
+.theme-light .concept-linear-item {
+    background: rgba(0, 0, 0, 0.02);
+    color: var(--text-main);
+}
+
+.theme-light .concept-linear-item:hover {
+    background: rgba(0, 0, 0, 0.04);
+    border-color: rgba(16, 185, 129, 0.2);
+}
+
+.theme-light .concept-badge.rule {
+    background: rgba(220, 38, 38, 0.05);
+    color: #991b1b;
+    border-color: rgba(220, 38, 38, 0.15);
+}
+
+.theme-light .concept-badge.definition {
+    background: rgba(217, 119, 6, 0.05);
+    color: #92400e;
+    border-color: rgba(217, 119, 6, 0.15);
+}
+
+.theme-light .concept-badge.table {
+    background: rgba(192, 132, 252, 0.05);
+    color: #6b21a8;
+    border-color: rgba(192, 132, 252, 0.15);
+}
+
+.theme-light .concept-badge.section {
+    background: rgba(37, 99, 235, 0.05);
+    color: #1e3a8a;
+    border-color: rgba(37, 99, 235, 0.15);
+}
+
+.theme-light .concept-badge.bridge {
+    background: rgba(8, 145, 178, 0.05);
+    color: #155e75;
+    border-color: rgba(8, 145, 178, 0.15);
+}
+
+.theme-light .concept-badge.concept {
+    background: rgba(13, 148, 136, 0.03);
+    color: #115e59;
+    border-color: rgba(13, 148, 136, 0.1);
+}
+
+.theme-light .view-toggle-btn {
+    background: rgba(0, 0, 0, 0.02);
+}
+
+.theme-light .view-toggle-btn:hover {
+    background: rgba(16, 185, 129, 0.08);
+    border-color: var(--accent);
+    color: var(--accent);
+}
+
 
 

src/NexusReader.UI.Shared/Pages/MyBooks.razor.css

@@ -407,3 +407,41 @@
 .theme-light .progress-bar {
     background: #e4e1d9;
 }
+
+@media (max-width: 767px) {
+    .my-books-page {
+        padding: 1.5rem 1rem calc(1.5rem + 72px + env(safe-area-inset-bottom, 0px)) !important;
+    }
+    
+    .my-books-header {
+        margin-bottom: 1.5rem;
+        flex-direction: column;
+        align-items: stretch;
+        gap: 1rem;
+    }
+    
+    .header-title-section h1 {
+        font-size: 1.75rem;
+        text-align: center;
+    }
+
+    .header-title-section .subtitle {
+        text-align: center;
+    }
+    
+    .add-book-trigger {
+        width: 100%;
+        text-align: center;
+        padding: 0.9rem 1.5rem;
+    }
+    
+    .books-grid, .loading-grid {
+        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
+        gap: 1.25rem;
+    }
+
+    .book-cover-container {
+        height: 200px !important;
+    }
+}
+

src/NexusReader.UI.Shared/wwwroot/app.css

@@ -8,6 +8,7 @@
     --text-muted: #a1a1aa;
     --accent: #00ff99;
     --accent-glow: rgba(0, 255, 153, 0.3);
+    --border: rgba(255, 255, 255, 0.05);
 
     /* Legacy mapping for backwards compatibility */
     --nexus-neon: var(--accent);
@@ -91,7 +92,7 @@
 .glass-panel {
     background: rgba(20, 20, 20, 0.85);
     /* Darker fallback for readability */
-    border: 1px solid rgba(255, 255, 255, 0.05);
+    border: 1px solid var(--border);
     border-radius: var(--radius-xl);
     padding: 1.5rem;
     transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
@@ -152,6 +153,7 @@
     --text-muted: #a1a1aa;
     --accent: #00ff99;
     --accent-glow: rgba(0, 255, 153, 0.3);
+    --border: rgba(255, 255, 255, 0.05);
 
     /* Legacy mapping for backwards compatibility */
     --nexus-bg: var(--bg-base);
@@ -169,6 +171,7 @@
     --text-muted: #78716c;
     --accent: #10b981;
     --accent-glow: rgba(16, 185, 129, 0.2);
+    --border: rgba(0, 0, 0, 0.08);
 
     /* Legacy mapping for backwards compatibility */
     --nexus-bg: var(--bg-base);