Add Chromebook compatibility fixes and optimizations

Implemented comprehensive Chromebook-specific fixes including viewport adjustments, enhanced touch and keyboard detection, improved scrolling and keyboard navigation hooks, and extensive CSS optimizations for better usability. Updated chat and dashboard interfaces for larger touch targets, better focus management, and responsive layouts. Added documentation in docs/CHROMEBOOK-FIXES.md and new hooks for Chromebook scroll and keyboard handling.

app/globals.css

@@ -90,6 +90,154 @@ body {
     background-color: hsl(var(--primary) / 0.9);
   }
   
+  /* Chromebook-specific optimizations */
+  @media screen and (max-width: 1366px) and (min-resolution: 1.5dppx) {
+    /* Chromebook display optimizations */
+    .text-sm {
+      font-size: 0.875rem;
+      line-height: 1.25rem;
+    }
+    
+    .text-base {
+      font-size: 1rem;
+      line-height: 1.5rem;
+    }
+    
+    /* Better touch targets for Chromebooks */
+    button, input, textarea, [role="button"], [role="tab"] {
+      min-height: 48px;
+      min-width: 48px;
+    }
+    
+    /* Improved spacing for Chromebook screens */
+    .space-y-2 > * + * {
+      margin-top: 0.75rem;
+    }
+    
+    .space-y-4 > * + * {
+      margin-top: 1.25rem;
+    }
+  }
+  
+  /* Chromebook touch screen optimizations */
+  @media (pointer: coarse) and (hover: none) {
+    /* Larger touch targets */
+    .touch-target {
+      min-height: 52px;
+      min-width: 52px;
+    }
+    
+    /* Better spacing for touch interactions */
+    .space-y-2 > * + * {
+      margin-top: 1rem;
+    }
+    
+    /* Improved button padding */
+    button {
+      padding: 0.75rem 1rem;
+    }
+    
+    /* Better input field sizing */
+    input, textarea {
+      padding: 0.875rem;
+      font-size: 1rem;
+    }
+    
+    /* Enhanced focus states for touch */
+    button:focus-visible, input:focus-visible, textarea:focus-visible {
+      outline: 3px solid hsl(var(--ring));
+      outline-offset: 2px;
+    }
+  }
+  
+  /* Chromebook keyboard navigation improvements */
+  @media (hover: hover) and (pointer: fine) {
+    /* Better hover states for mouse/trackpad */
+    button:hover:not(:disabled) {
+      transform: translateY(-1px);
+      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
+    }
+    
+    /* Improved focus indicators */
+    button:focus-visible, input:focus-visible, textarea:focus-visible {
+      outline: 2px solid hsl(var(--ring));
+      outline-offset: 2px;
+      box-shadow: 0 0 0 4px hsl(var(--ring) / 0.2);
+    }
+  }
+  
+  /* Chromebook display scaling fixes */
+  @media screen and (min-resolution: 1.5dppx) {
+    /* Prevent text from being too small on high-DPI displays */
+    html {
+      -webkit-text-size-adjust: 100%;
+      text-size-adjust: 100%;
+    }
+    
+    /* Better font rendering */
+    body {
+      -webkit-font-smoothing: antialiased;
+      -moz-osx-font-smoothing: grayscale;
+    }
+  }
+  
+  /* Chromebook scrolling improvements */
+  .overflow-y-auto {
+    -webkit-overflow-scrolling: touch;
+    scroll-behavior: smooth;
+    /* Better momentum scrolling for Chromebooks */
+    overscroll-behavior: contain;
+  }
+  
+  /* Chromebook chat interface optimizations */
+  .chat-message {
+    /* Better message bubble sizing for touch */
+    min-height: 44px;
+    padding: 0.75rem;
+  }
+  
+  /* Chromebook form optimizations */
+  .form-input {
+    /* Better input field sizing for Chromebooks */
+    min-height: 48px;
+    font-size: 1rem;
+    padding: 0.75rem 1rem;
+  }
+  
+  /* Chromebook button optimizations */
+  .btn-chromebook {
+    min-height: 48px;
+    min-width: 48px;
+    padding: 0.75rem 1rem;
+    font-size: 1rem;
+    border-radius: 0.5rem;
+  }
+  
+  /* Enhanced keyboard focus indicators for Chromebooks */
+  .keyboard-focus {
+    outline: 3px solid hsl(var(--ring));
+    outline-offset: 2px;
+    box-shadow: 0 0 0 4px hsl(var(--ring) / 0.3);
+  }
+  
+  /* Better focus management for Chromebook keyboard navigation */
+  button:focus-visible, 
+  input:focus-visible, 
+  textarea:focus-visible,
+  [role="button"]:focus-visible,
+  [role="tab"]:focus-visible {
+    outline: 3px solid hsl(var(--ring));
+    outline-offset: 2px;
+    box-shadow: 0 0 0 4px hsl(var(--ring) / 0.3);
+  }
+  
+  /* Chromebook-specific focus ring */
+  @media (prefers-reduced-motion: no-preference) {
+    .keyboard-focus {
+      transition: outline 0.2s ease, box-shadow 0.2s ease;
+    }
+  }
+  
   .bg-muted {
     background-color: hsl(var(--muted) / 0.8);
   }