/* Cosmic Night Sky Background */
.bg-cosmic-particles {
  background: linear-gradient(to bottom, #0a1633 0%, #1a2746 60%, #0b0c1a 100%);
  overflow: hidden;
  position: relative;
}
.bg-cosmic-particles::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse at 50% 80%, rgba(0,180,255,0.10) 0%, rgba(0,0,0,0.0) 60%),
    radial-gradient(ellipse at 50% 0%, rgba(120,80,255,0.08) 0%, rgba(0,0,0,0.0) 60%),
    radial-gradient(ellipse at 50% 50%, rgba(0,0,0,0.35) 80%, rgba(0,0,0,0.7) 100%);
}
.particle {
  position: absolute;
  border-radius: 50%;
  opacity: 0.7;
  pointer-events: none;
  z-index: 1;
  animation: cosmic-float 12s linear infinite;
  filter: blur(0.5px);
}
.particle.glow {
  filter: blur(2.5px);
  opacity: 0.5;
}
.particle.twinkle {
  animation: cosmic-float 12s linear infinite, twinkle 2.2s ease-in-out infinite;
}
@keyframes cosmic-float {
  0% { transform: translateY(100vh) scale(0.7); opacity: 0.7; }
  100% { transform: translateY(-10vh) scale(1.2); opacity: 0.2; }
}
@keyframes twinkle {
  0%, 100% { opacity: 0.7; filter: brightness(1); }
  20% { opacity: 1; filter: brightness(1.5); }
  50% { opacity: 0.4; filter: brightness(0.7); }
  70% { opacity: 1; filter: brightness(1.3); }
}