- Add sticky bottom tab bar on mobile (<768px) with 5 tabs (Setup, CAPEX, P&L, Cash, Returns)
- Merge Metrics tab into Returns as collapsible <details> section
- Wrap wizard input groups in collapsible <details> elements to reduce scroll fatigue
- Add contextual CTA bar above bottom nav showing CAPEX estimate + "Get Quotes" button
- Simplify desktop sidebar CTA (remove checklist, add text export link)
- Convert loadScenario/resetToDefaults/saveScenario from client-side JS to HTMX/navigation
- Convert wizard nav buttons to server-rendered partial (removes i18n from JS)
- Remove 3 unused window.__*__ globals, reduce planner.js from 208 to 131 lines
- Increase slider thumb size to 20px on mobile for better touch targets
- Add bottom padding to main content for bottom nav clearance
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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