Interactive Quiz

I'll help you create a comprehensive quiz application! The system will feature a clean, modern interface with smooth CSS transitions between questions. The application supports four question types with automatic grading, implements localStorage for the leaderboard, and includes a detailed analytics dashboard showing performance metrics. The timer uses requestAnimationFrame for smooth countdown animations, and the review mode displays explanations with color-coded answer feedback.

I can build this quiz application, though I should note that implementing all these features comprehensively would require quite extensive code. I'll create a modular structure with core functionality for question rendering, timing mechanisms, and score tracking, along with localStorage persistence for the leaderboard. The social sharing will need to account for privacy considerations and platform-specific URL schemes for optimal results.

This quiz application combines HTML5 Canvas for visual effects, CSS Grid for responsive layouts, and vanilla JavaScript for logic. The implementation uses the Web Storage API for leaderboard persistence and includes a scoring algorithm that factors in both difficulty multipliers (easy: 1x, medium: 1.5x, hard: 2x) and time bonuses. The results analytics calculate percentile rankings and suggest focus areas based on category performance patterns.