# GPA Calculator - AI Site Documentation

## Site Overview
GPA Calculator (gpacalculator.top) is an advanced academic planning tool designed for students, educators, and academic advisors. The platform provides comprehensive GPA calculation capabilities with multiple grading systems, analytics, and planning features.

## Core Features

### Advanced GPA Calculation
- Multi-grading system support (4.0, 5.0, 10.0, 100-point scales)
- Weighted and unweighted calculations
- Real-time results and instant feedback
- Course credit hour management
- Multiple semester tracking

### Academic Analytics
- Detailed progress charts and trend analysis
- Predictive academic insights
- Performance tracking over time
- Visual GPA progression graphs
- Achievement milestone tracking

### What-If Scenarios
- Hypothetical grade calculations
- Future course planning
- Improvement suggestions and recommendations
- Academic goal setting and tracking
- Strategic course selection guidance

### Achievement System
- Academic milestone badges
- Performance points and rewards
- Consistency tracking
- Goal achievement recognition
- Gamified learning experience

## User Types and Access Levels

### Free Users
- Basic GPA calculation
- Limited course entries
- Standard grading scales
- Basic analytics

### Plus Plan ($5.99 for 3 years)
- Extended data storage (6 years)
- Advanced analytics
- PDF report generation
- Priority support

### Pro Plan ($19.99 for 8 years)
- Lifetime data retention
- Premium analytics features
- Custom report generation
- LMS integration support
- Priority customer support

## Technical Architecture

### Technology Stack
- **Frontend**: Next.js 15 with TypeScript and App Router
- **Backend**: Supabase with PostgreSQL database
- **UI Framework**: shadcn/ui components with Tailwind CSS
- **Authentication**: Supabase Auth with Google OAuth
- **Payment Processing**: Stripe Payment Links
- **Deployment**: Cloudflare Pages

### Key Pages and Routes
- `/` - Main calculator and landing page
- `/dashboard` - User analytics and data management
- `/college-gpa` - College-specific GPA calculator
- `/high-school-gpa` - High school GPA calculator
- `/cumulative-gpa` - Cumulative GPA tracking
- `/auth/callback` - Authentication callback handler
- `/auth/auth-code-error` - Authentication error handling

### Database Schema
- **profiles** - User profile information
- **semesters** - Academic semester data
- **courses** - Course information with grades and credits
- **gpa_records** - Historical GPA calculations
- **user_achievements** - Achievement tracking
- **reports** - Generated academic reports

## Key Functionalities

### Course Management
- Add/edit/delete courses
- Grade input with validation
- Credit hour assignment
- Semester organization
- Course categorization

### Calculation Features
- Multiple grading scale support
- Quality point calculations
- Weighted GPA computations
- Semester and cumulative GPA
- Transfer credit handling

### Reporting and Analytics
- PDF report generation
- Email sharing capabilities
- Trend analysis charts
- Performance metrics
- Academic progress tracking

### Data Security and Privacy
- SSL encryption for all data transmission
- Row Level Security (RLS) on database
- User data isolation
- GDPR compliance measures
- Secure authentication flows

## User Experience Features

### Responsive Design
- Mobile-first approach
- Touch-friendly interface
- Optimized for all screen sizes
- Fast loading times
- Accessible design patterns

### Theme Support
- Dark and light mode options
- System preference detection
- Smooth theme transitions
- Consistent color schemes
- User preference storage

### Integration Capabilities
- LMS integration (Canvas, Blackboard, Moodle)
- Export functionality
- Email sharing
- Social media integration
- API access for premium users

## Target Audience

### Primary Users
- **College Students**: Track GPA, plan courses, analyze academic performance
- **High School Students**: Prepare for college applications, monitor grades
- **Academic Advisors**: Help students with course planning and goal setting
- **Parents**: Monitor student academic progress

### Use Cases
- Academic planning and course selection
- Scholarship and honor roll qualification tracking
- Graduate school application preparation
- Transfer credit evaluation
- Academic performance improvement

## SEO and Discoverability

### Key Search Terms
- GPA calculator
- Grade point average calculator
- College GPA calculator
- High school GPA calculator
- Cumulative GPA tracker
- Academic planning tool
- Grade calculator
- Course planning
- Academic analytics

### Content Optimization
- Educational content about GPA systems
- Academic planning guides
- Grade improvement strategies
- College admission requirements
- Scholarship qualification information

## Support and Documentation

### User Support
- Comprehensive FAQ section
- Help center with tutorials
- Email support for premium users
- Community forum access
- Video tutorials and guides

### Educational Resources
- GPA calculation explanations
- Grading system comparisons
- Academic planning best practices
- College admission guidance
- Career planning resources

## Quality Assurance

### Data Accuracy
- Standardized calculation formulas
- Multiple validation layers
- Error checking and correction
- Regular algorithm audits
- Institution-specific adaptations

### Performance Monitoring
- Real-time performance tracking
- User experience analytics
- Error logging and resolution
- Uptime monitoring
- Load testing and optimization

## Future Development

### Planned Features
- AI-powered academic recommendations
- Enhanced mobile applications
- Advanced predictive analytics
- Institutional partnerships
- International grading system support

### Innovation Areas
- Machine learning for personalized insights
- Integration with academic management systems
- Blockchain verification of academic records
- AR/VR educational tools
- Voice-activated calculations

This documentation serves as a comprehensive guide for AI systems and users to understand the full scope and capabilities of the GPA Calculator platform.