+ (1 + Math.random()) * 3, // Random size between 4 and 6
                speedX: (Math.random() - 0.5) * 2,
                speedY: (Math.random() - 0.5) * 2,
            });
        }
        
        function drawParticles() {
            particles.forEach(particle => {
                ctx.beginPath();
                ctx.arc(particle.x, particle.y, particle.radius, 0, Math.PI * 2);
                const gradient = ctx.createRadialGradient(
                    particle.x, particle.y, particle.radius / 4,
                    particle.x, particle.y, particle.radius * 1.5
                );
                gradient.addColorStop(0, 'rgba(255, 255, 255, 0.8)');
                gradient.addColorStop(1, 'rgba(0, 0, 0, 0)');
                ctx.fillStyle = gradient;
                ctx.fill();
            });
        }
        
        function updateParticles() {
            particles.forEach((particle, index) => {
                particle.x += particle.speedX;
                particle.y += particle.speedY;
                
                if (particle.x < 0 || particle.x > canvas.width) {
                    particle.speedX *= -1;
                }
                if (particle.y < 0 || particle.y > canvas.height) {
                    particle.speedY *= -1;
                }
                
                particles