- Add sticky dark header with nav replacing inline text links
- Introduce CSS custom properties design system (colors, spacing, shadows)
- Use DM Sans + JetBrains Mono fonts replacing Arial
- Modernize tables with uppercase headers and subtle hover states
- Add gradient fill and rounded line to rating chart
- Unify card sections across players and courses pages
- Add backdrop blur to modals
- Clean up inline styles to use CSS variables
- Extract CSS into public/css/{shared,players,courses}.css
- Extract JS into public/js/{chart,tooltips,progress,players,courses}.js
- Consolidate 5 duplicated tooltip blocks into setupTooltip() helper
- Add EJS view engine with layout partial and nav partial
- Convert HTML pages to EJS templates (index.ejs, courses.ejs)
- Add /courses route with redirect from /courses.html
- Remove old monolithic HTML files (1478 + 612 lines)
Samuel Enocsson