- Remove excessive emojis while maintaining strategic usage
- Update CSS with academic typography (Source Sans Pro, Source Serif Pro)
- Professional color scheme with academic blues (#2c3e50, #3498db)
- Clean navigation without emoji decorations
- Enhanced visual hierarchy with professional spacing
- University-level styling consistent with Harvard standards
- Maintained pedagogical effectiveness and engagement
- Improved readability with clean, accessible design
- Professional tone throughout all content
- Academic credibility without sacrificing approachability
