/* === ULTRA-SMOOTH 60FPS ANIMATIONS === */
/* Optimized for performance with GPU acceleration */

/* Scroll-triggered reveal animations */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(40px) scale(0.98);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform, opacity;
}

.animate-on-scroll.animate-in {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Staggered animations with spring physics */
[data-stagger] {
  opacity: 0;
  transform: translateY(30px) scale(0.95);
  transition: opacity 0.6s cubic-bezier(0.34, 1.56, 0.64, 1),
              transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
  will-change: transform, opacity;
}

[data-stagger].animate-in {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Image loading with smooth fade */
img:not([loading="eager"]) {
  opacity: 0;
  transform: scale(1.05);
  transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

img.loaded,
img[loading="eager"] {
  opacity: 1;
  transform: scale(1);
}

/* Floating animation - smooth & natural */
@keyframes float {
  0%, 100% { 
    transform: translateY(0px) rotate(0deg);
  }
  25% {
    transform: translateY(-6px) rotate(0.5deg);
  }
  75% {
    transform: translateY(-6px) rotate(-0.5deg);
  }
}

.kicker {
  animation: float 4s ease-in-out infinite;
  will-change: transform;
}

/* Ultra-smooth glow pulse for CTAs */
@keyframes glowPulse {
  0%, 100% { 
    box-shadow: var(--shadow-cta-cyan);
  }
  50% { 
    box-shadow: var(--shadow-cta-cyan-hover), var(--glow-cyan);
  }
}

.btn.primary:not(:hover):not(:active) {
  animation: glowPulse 3s ease-in-out infinite;
}

/* Shimmer sweep with smooth easing */
@keyframes shimmerSweep {
  0% { 
    transform: translateX(-150%) skewX(-15deg);
    opacity: 0;
  }
  50% { 
    opacity: 0.8;
  }
  100% { 
    transform: translateX(150%) skewX(-15deg);
    opacity: 0;
  }
}

.btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.4) 50%,
    transparent 100%
  );
  transform: translateX(-150%) skewX(-15deg);
  transition: none;
  pointer-events: none;
  z-index: 10;
}

.btn:hover::after {
  animation: shimmerSweep 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Card lift with 3D transform */
.realExpCard,
.block {
  transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  will-change: transform;
}

.realExpCard:hover,
.block:hover {
  transform: translateY(-10px) scale(1.03) rotateX(2deg);
  box-shadow: var(--shadow-xl), var(--glow-cyan);
}

/* Tab indicator with smooth spring animation */
@keyframes tabSlide {
  0% {
    transform: scaleX(0.3);
    opacity: 0;
  }
  50% {
    transform: scaleX(1.1);
  }
  100% {
    transform: scaleX(1);
    opacity: 1;
  }
}

.tab[aria-selected="true"]::before {
  animation: tabSlide 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Form input focus with ripple */
@keyframes inputRipple {
  0% {
    box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.5);
  }
  100% {
    box-shadow: 0 0 0 16px rgba(6, 182, 212, 0);
  }
}

input:focus,
select:focus,
textarea:focus {
  animation: inputRipple 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Progress circle with breathing effect */
@keyframes progressPulse {
  0%, 100% { 
    transform: scale(1); 
    opacity: 0.5; 
  }
  50% { 
    transform: scale(1.3); 
    opacity: 0; 
  }
}

.progressStep.active .progressCircle::before {
  animation: progressPulse 2s ease-in-out infinite;
}

/* Scroll progress bar - silky smooth */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient-primary);
  transform-origin: left;
  transform: scaleX(0);
  z-index: 9999;
  transition: transform 0.05s linear;
  box-shadow: var(--glow-cyan);
  will-change: transform;
}

/* Advanced skeleton loading */
@keyframes skeleton {
  0% {
    background-position: -300px 0;
  }
  100% {
    background-position: calc(300px + 100%) 0;
  }
}

.skeleton {
  background: linear-gradient(
    90deg,
    rgba(255,255,255,0.04) 0%,
    rgba(255,255,255,0.08) 50%,
    rgba(255,255,255,0.04) 100%
  );
  background-size: 200px 100%;
  animation: skeleton 1.5s ease-in-out infinite;
}

/* Magnetic button effect (desktop only) */
@media (min-width: 1024px) {
  .btn.primary,
  .btn.secondary {
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  }
}

/* Success checkmark animation */
@keyframes checkmark {
  0% {
    transform: scale(0) rotate(-45deg);
    opacity: 0;
  }
  50% {
    transform: scale(1.2) rotate(-45deg);
    opacity: 1;
  }
  100% {
    transform: scale(1) rotate(-45deg);
    opacity: 1;
  }
}

.progressStep.completed .progressCircle::after {
  animation: checkmark 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Notification slide-in */
@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.notification {
  animation: slideInRight 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Loading spinner */
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.2);
  border-top-color: var(--cta-primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

/* Pulse animation for notifications */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.05);
  }
}

/* Fade animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

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

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

/* Scale animations */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Accessibility - Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .animate-on-scroll,
  [data-stagger] {
    opacity: 1 !important;
    transform: none !important;
  }
  
  .btn.primary {
    animation: none !important;
  }
}

/* === ADVANCED MICRO-INTERACTIONS === */

/* Magnetic button effect (enhanced) */
.btn.magnetic {
  transition: transform 0.15s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Morphing gradient background */
@keyframes morphGradient {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.gradient-morph {
  background-size: 200% 200%;
  animation: morphGradient 10s ease infinite;
}

/* Subtle parallax layers */
.parallax-slow {
  will-change: transform;
  transform: translateZ(0);
}

/* Loading spinner - smooth rotation */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.spinner {
  animation: spin 0.8s linear infinite;
  will-change: transform;
}

/* Breath animation for subtle elements */
@keyframes breathe {
  0%, 100% {
    transform: scale(1);
    opacity: 0.6;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.8;
  }
}

/* Slide in animations from edges */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Count-up animation for numbers */
@keyframes countUp {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Advanced hover states with spring physics */
.interactive-card {
  transform-style: preserve-3d;
  perspective: 1000px;
  transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.interactive-card:hover {
  transform: translateY(-12px) rotateX(5deg);
}

/* Border glow animation */
@keyframes borderGlow {
  0%, 100% {
    border-color: rgba(6, 182, 212, 0.3);
    box-shadow: 0 0 10px rgba(6, 182, 212, 0.2);
  }
  50% {
    border-color: rgba(6, 182, 212, 0.6);
    box-shadow: 0 0 20px rgba(6, 182, 212, 0.4);
  }
}

/* Text gradient shimmer */
@keyframes textShimmer {
  0% {
    background-position: 0% center;
  }
  100% {
    background-position: 200% center;
  }
}

.text-shimmer {
  background: linear-gradient(
    90deg,
    var(--cta-primary) 0%,
    var(--cta-secondary) 50%,
    var(--cta-primary) 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: textShimmer 3s linear infinite;
}

/* Reveal curtain effect */
@keyframes revealCurtain {
  from {
    clip-path: inset(0 100% 0 0);
  }
  to {
    clip-path: inset(0 0 0 0);
  }
}

.reveal-curtain {
  animation: revealCurtain 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* Bounce entrance */
@keyframes bounceIn {
  0% {
    opacity: 0;
    transform: scale(0.3);
  }
  50% {
    opacity: 1;
    transform: scale(1.05);
  }
  70% {
    transform: scale(0.9);
  }
  100% {
    transform: scale(1);
  }
}

/* Performance optimization */
@media (prefers-reduced-motion: no-preference) {
  .will-animate {
    will-change: transform, opacity;
  }
}

/* GPU acceleration helpers */
.gpu-accelerated {
  transform: translateZ(0);
  backface-visibility: hidden;
  perspective: 1000px;
}
@media (prefers-color-scheme: light) {
  /* Can be extended for light mode variants */
}