feat: Add bluish animated sky background with dynamic colors and clouds

js/main.js

@@ -5,6 +5,16 @@ let lastFrameTime = 0;
 let fps = 0;
 let debugMode = false;
 
+// Sky background variables
+const SKY_COLORS = [
+    '#1a2980', // Deep blue
+    '#2980b9', // Medium blue
+    '#6dd5fa', // Light blue
+    '#2980b9', // Medium blue
+];
+let skyAnimationTime = 0;
+let skyAnimationSpeed = 0.0005; // Controls how fast the sky animates
+
 // Initialize the simulation
 window.onload = function() {
     canvas = document.getElementById('simulation-canvas');