I'll create an engaging American history quiz app with feedback and scoring functionality. Here's the implementation:

Key Features:

1. Interactive Quiz Interface:

   • Clean, responsive layout with Shadcn UI components
   • Progress tracking (current question and total score)
   • Visual feedback for correct/incorrect answers

2. Educational Content:

   • 5 well-researched American history questions
   • Detailed explanations for each answer
   • Immediate feedback after each question

3. User Experience:

   • Clear visual indicators (green for correct, red for incorrect)
   • Disabled buttons after selection to prevent answer changes
   • Progress tracking throughout the quiz
   • Final score summary with option to retake

4. Technical Implementation:

   • TypeScript for type safety
   • React state management for quiz flow
   • Tailwind CSS for responsive styling
   • Lucide icons for visual feedback
   • Shadcn UI components for consistent design

The quiz covers fundamental moments in American history from the colonial period through the Civil War, making it both educational and engaging. The explanations provide historical context to help users learn from their answers.

Would you like me to add any additional features or modify any aspects of the quiz?

Here's a modern landing page for your AI Interview Agent project with login and signup functionality:

Key Features of This Landing Page:

1. Modern Design:

   • Clean gradient background
   • Responsive layout that works on all devices
   • Professional color scheme with indigo as the primary color

2. Complete Navigation:

   • Logo and navigation menu
   • Login/Signup buttons in header
   • Smooth scrolling sections

3. Engaging Sections:

   • Hero section with clear value proposition
   • Features section with icons
   • Testimonials to build trust
   • Strong call-to-action section
   • Professional footer

4. Authentication System:

   • Modal-based login/signup forms
   • Tab switching between login and signup
   • Form validation structure (ready for implementation)
   • Password confirmation for signup

5. UI Components:

   • Shadcn UI components for consistency
   • Lucide icons for visual appeal
   • Tailwind CSS for styling
   • Interactive buttons and cards

6. Ready for Expansion:

   • Easy to add more features or sections
   • Simple to connect to backend authentication
   • Clean component structure

The page follows modern web design principles with ample white space, clear typography hierarchy, and strategic use of color to guide user attention. The authentication modals provide a seamless user experience without requiring page reloads.

Would you like me to add any specific features or make adjustments to the design?

Here's an enhanced, more visually appealing version with gradients, icons, and visual elements:

Key Visual Enhancements:

1. Vibrant Gradients:

   • Gradient backgrounds throughout (header, buttons, sections)
   • Subtle gradient overlays for depth
   • Text gradients for key headings

2. Rich Visual Elements:

   • Floating blob shapes in the hero section
   • Glowing shadows on interactive elements
   • Icons for all features and sections
   • Star ratings for testimonials
   • User avatar placeholders

3. Enhanced UI Components:

   • Gradient buttons with hover effects
   • Cards with subtle glass morphism effect
   • Improved spacing and visual hierarchy
   • Animated transitions on hover

4. Professional Color Scheme:

   • Primary indigo-to-purple gradient
   • Complementary colors for accents
   • Dark mode footer for contrast

5. Additional Visual Cues:

   • Badges with icons
   • Chevron icons on buttons
   • Play button for demo CTA
   • More detailed testimonial cards

6. Improved Layout:

   • Better section spacing
   • More balanced grid layouts
   • Responsive improvements
   • Consistent padding and margins

The design now has much more visual interest while maintaining professionalism. The gradients create depth and modern appeal, while the icons and visual elements make the interface more engaging and intuitive.

Here's an enhanced, more attractive navigation section with modern styling, animations, and visual appeal:

Key Enhancements to the Navigation:

1. Scroll-Aware Design:

   • Navbar changes background and text color on scroll
   • Adds backdrop blur effect when scrolled
   • Subtle shadow appears on scroll

2. Animated Dropdown Menus:

   • Smooth dropdown animations with scale and opacity transitions
   • Chevron icons that rotate when expanded
   • Hover effects on dropdown items

3. Gradient Branding:

   • Gradient logo with transparent text effect
   • Gradient background for the logo icon
   • Gradient buttons for primary CTAs

4. Mobile Responsiveness:

   • Hamburger menu that transforms to X when open
   • Full-screen mobile menu with accordion dropdowns
   • Proper spacing and sizing for mobile devices

5. Visual Feedback:

   • Hover states for all interactive elements
   • Shadow effects on buttons
   • Smooth transitions between states

6. Modern UI Elements:

   • Clean, rounded corners
   • Appropriate spacing and padding
   • Consistent icon usage
   • Semi-transparent backgrounds

7. Improved Structure:

   • Better organized navigation items
   • Dropdown menus with icons
   • Separate mobile and desktop views
   • Proper z-indexing for dropdowns

To use this enhanced navigation, simply replace your existing navigation component with this one. The component handles both desktop and mobile views automatically and includes all the interactive elements with proper styling.

Would you like me to adjust any specific aspects of the navigation, such as the color scheme, animation speeds, or menu items?

Ah, I see the issue. The error occurs because we're trying to use the Button component from Shadcn UI without properly importing it. Let me provide a complete, working version of the enhanced navigation with all the correct imports and exports:

Key Fixes Made:

1. Corrected Import Path:

   • Changed Button import from /components/ui/button to @/components/ui/button (standard Next.js alias)
   • Ensured all icon imports from lucide-react are correct

2. Proper Component Export:

   • Changed from export function EnhancedNav() to const EnhancedNav = () => with export default EnhancedNav
   • This ensures consistent default export usage

3. Added Missing Dependencies:

   • Included all required imports (useState, useEffect)
   • Ensured all icons are properly imported from lucide-react

4. Fixed Component Structure:

   • Properly closed all JSX tags
   • Ensured consistent arrow function syntax

Implementation Notes:

1. Make sure you have Shadcn UI's Button component properly set up in your project at @/components/ui/button

2. Install the required dependencies if you haven't already:

   npm install lucide-react
   

3. The navigation now includes:

   • Scroll-aware styling
   • Smooth dropdown animations
   • Mobile-responsive design
   • Gradient accents
   • Proper hover states

4. To use this component:

   import EnhancedNav from './components/EnhancedNav'
   
   function Layout() {
     return (
       <>
         <EnhancedNav />
         {/* Your page content */}
       </>
     )
   }
   

This version should work without any import/export errors. Let me know if you need any adjustments to the styling or functionality!

I understand you're still having issues. Let me provide a completely self-contained version that doesn't rely on external UI libraries. Here's a working navigation component with all necessary components included:

Key Improvements:

1. Self-Contained Components:

   • Added custom Button component to replace Shadcn UI
   • Included SVG icons directly instead of using Lucide
   • No external dependencies required

2. Fixed All Issues:

   • Proper TypeScript typing
   • Correct component exports
   • Working dropdown functionality
   • Responsive mobile menu

3. Simplified Implementation:

   • Everything in one file
   • No need to install additional libraries
   • Clear, commented structure

How to Use:

1. Create a new file called EnhancedNav.tsx
2. Paste this entire code
3. Import and use it in your layout:

import EnhancedNav from './components/EnhancedNav';

function MyApp() {
  return (
    <div>
      <EnhancedNav />
      {/* Your page content */}
    </div>
  );
}

This version should work perfectly without any dependency issues. Let me know if you need any adjustments!