Session 1: Particle effects system with click, building, and achievement visual feedback

dev-journal.md

@@ -29,3 +29,29 @@ The stats panel tracks and displays:
 - Visual effects (particle effects on click)
 - Mobile touch optimizations
 - Prestige/reset system
+
+---
+
+### Session 1 - 2026-08-19 (14:35 UTC)
+**Status:** ✅ Particle Effects System Added
+
+#### What was done:
+- Created a complete particle effects system for visual feedback
+- Added click sparkle particles when harvesting stardust
+- Added building purchase burst effects on the building card
+- Added achievement unlock celebration effects
+- Added ambient twinkling stars to the background
+- Integrated particles into game.js, achievements.js, and main.js
+
+#### Files modified:
+- `js/particles.js` - New file with Particle system (click, building, achievement effects + ambient stars)
+- `js/game.js` - Added particle calls on harvest and buyBuilding
+- `js/achievements.js` - Added particle effect on achievement unlock
+- `js/main.js` - Added ambient star creation on init
+- `css/game.css` - Added particle styles and twinkle animation
+- `index.html` - Added particles.js script tag
+
+#### Next goals:
+- Mobile touch optimizations (tap feedback, responsive layout)
+- Prestige/reset system with bonuses
+- Sound effects for clicks and purchases