/* ==========================================================================
   Custom Animations
   ========================================================================== */

/* 
   While GSAP handles complex timelines and AOS handles scroll reveals,
   we define CSS keyframes for infinite animations, subtle hovers, 
   and micro-interactions.
*/

/* Floating Element Animation */
@keyframes float {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
  100% {
    transform: translateY(0px);
  }
}

.animate-float {
  animation: float 6s ease-in-out infinite;
}

/* Pulse Glow (for buttons or alerts) */
@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.4); /* Accent color */
  }
  50% {
    box-shadow: 0 0 0 10px rgba(59, 130, 246, 0);
  }
}

.animate-pulse-glow {
  animation: pulse-glow 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Shimmer Effect (Loading/Skeleton) */
@keyframes shimmer {
  100% {
    transform: translateX(100%);
  }
}

.animate-shimmer {
  position: relative;
  overflow: hidden;
  background-color: #f1f5f9;
}

.animate-shimmer::after {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  transform: translateX(-100%);
  background-image: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0,
    rgba(255, 255, 255, 0.2) 20%,
    rgba(255, 255, 255, 0.5) 60%,
    rgba(255, 255, 255, 0)
  );
  animation: shimmer 2s infinite;
  content: '';
}

/* Subtle Link Underline Hover */
.hover-underline-animation {
  display: inline-block;
  position: relative;
}

.hover-underline-animation::after {
  content: '';
  position: absolute;
  width: 100%;
  transform: scaleX(0);
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: currentColor;
  transform-origin: bottom right;
  transition: transform 0.25s ease-out;
}

.hover-underline-animation:hover::after {
  transform: scaleX(1);
  transform-origin: bottom left;
}

/* Page Preloader spinner */
.loader-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid rgba(59, 130, 246, 0.1);
  border-left-color: #3b82f6;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Fullscreen Preloader Container */
#preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-background);
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: opacity 0.5s ease;
}