/* Keyframes */
@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-15px); }
  100% { transform: translateY(0px); }
}

@keyframes pulseGlow {
  0% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.4); }
  70% { box-shadow: 0 0 0 10px rgba(74, 222, 128, 0); }
  100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

/* Animation Utilities */
.animate-on-scroll {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
  will-change: opacity, visibility;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.fade-up {
  transform: translateY(40px);
}

.fade-in {
  animation: fadeIn 1s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.delay-100 { animation-delay: 100ms; transition-delay: 100ms; }
.delay-200 { animation-delay: 200ms; transition-delay: 200ms; }
.delay-300 { animation-delay: 300ms; transition-delay: 300ms; }

.pulse-btn {
  animation: pulseGlow 2s infinite;
}

/* Atmosphere Elements */
.particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: -1;
  pointer-events: none;
}

.particle {
  position: absolute;
  background: var(--accent-highlight);
  border-radius: 50%;
  opacity: 0.3;
  filter: blur(2px);
  animation: float 10s infinite linear;
}