/* ==========================================================================
   BIOKIM ANIMATIONS & MOTION SYSTEM
   ========================================================================== */

/* Keyframe Animations */
@keyframes pulseRed {
  0% {
    box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.4);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(220, 38, 38, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(220, 38, 38, 0);
  }
}

@keyframes floatSlow {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-8px);
  }
  100% {
    transform: translateY(0px);
  }
}

@keyframes shineEffect {
  0% {
    left: -100%;
  }
  100% {
    left: 200%;
  }
}

@keyframes rotateCircle {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Scroll Reveal Classes (Driven by JS IntersectionObserver) */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-on-scroll.revealed {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* Interactive Hover Utilities */
.hover-float {
  transition: transform 0.3s ease;
}

.hover-float:hover {
  transform: translateY(-5px);
}

.glow-red-hover:hover {
  box-shadow: 0 10px 30px rgba(220, 38, 38, 0.3);
}

.shimmer-btn {
  position: relative;
  overflow: hidden;
}

.shimmer-btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: none;
}

.shimmer-btn:hover::after {
  animation: shineEffect 1.2s ease-in-out infinite;
}