/* Advanced Keyframe Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

@keyframes gradientRotate {
  0% {
    background-position: 0% 0%;
  }
  25% {
    background-position: 100% 0%;
  }
  50% {
    background-position: 100% 100%;
  }
  75% {
    background-position: 0% 100%;
  }
  100% {
    background-position: 0% 0%;
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes floatLarge {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  33% {
    transform: translateY(-15px) rotate(1deg);
  }
  66% {
    transform: translateY(-5px) rotate(-1deg);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 0 5px rgba(59, 130, 246, 0.3);
  }
  50% {
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.6);
  }
}

@keyframes slideInFromBottom {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInFromTop {
  from {
    opacity: 0;
    transform: translateY(-50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes morphIcon {
  0%, 100% {
    transform: scale(1) rotate(0deg);
  }
  50% {
    transform: scale(1.1) rotate(5deg);
  }
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

@keyframes ripple {
  0% {
    transform: scale(0);
    opacity: 1;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}

@keyframes typewriter {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}

@keyframes blink {
  0%, 50% {
    border-color: transparent;
  }
  51%, 100% {
    border-color: var(--primary-blue);
  }
}

/* Hero Section Advanced Animations */
.hero {
  background-size: 400% 400%;
  animation: gradientShift 12s ease infinite;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
  animation: shimmer 3s infinite;
  pointer-events: none;
}

.hero-title {
  animation: fadeInUp 1.2s ease-out 0.3s both;
  position: relative;
}

.hero-title::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-blue), var(--primary-blue));
  animation: typewriter 2s ease-out 1.5s both;
}

.hero-subtitle {
  animation: fadeInUp 1.2s ease-out 0.6s both;
}

.hero-cta {
  animation: fadeInUp 1.2s ease-out 0.9s both;
}

/* Advanced Entrance Animations */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.animate-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.animate-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.animate-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.animate-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.animate-scale {
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.animate-scale.visible {
  opacity: 1;
  transform: scale(1);
}

.animate-rotate {
  opacity: 0;
  transform: rotate(-10deg) scale(0.9);
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.animate-rotate.visible {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

/* Enhanced Button Hover Effects */
.btn {
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  z-index: 1;
}

.btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: all 0.3s ease;
  z-index: 0;
}

.btn:hover::before {
  left: 100%;
}

.btn:hover::after {
  width: 300px;
  height: 300px;
}

.btn:active {
  transform: scale(0.98);
}

/* Advanced Card Hover Animations */
.card {
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(30, 58, 138, 0.1));
  opacity: 0;
  transition: opacity var(--transition-normal);
  pointer-events: none;
}

.card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.card:hover::before {
  opacity: 1;
}

.card:hover .card-title {
  color: var(--primary-blue);
}

/* Floating Elements with Advanced Physics */
.float-element {
  animation: float 4s ease-in-out infinite;
  will-change: transform;
}

.float-element:nth-child(2n) {
  animation: floatLarge 5s ease-in-out infinite;
  animation-delay: 1s;
}

.float-element:nth-child(3n) {
  animation: float 3s ease-in-out infinite;
  animation-delay: 2s;
}

.float-element:nth-child(4n) {
  animation: floatLarge 6s ease-in-out infinite;
  animation-delay: 0.5s;
}

/* Advanced Parallax Effects */
.parallax {
  transform: translateZ(0);
  will-change: transform;
  transition: transform 0.1s ease-out;
}

.parallax-slow {
  transform: translateZ(0);
  will-change: transform;
}

.parallax-fast {
  transform: translateZ(0);
  will-change: transform;
}

/* Glassmorphism Effects */
.glass-effect {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
  transition: all var(--transition-normal);
}

.glass-effect:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.5);
}

.glass-dark {
  background: rgba(0, 0, 0, 0.15);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Icon Morphing Animations */
.morph-icon {
  transition: all var(--transition-normal);
}

.morph-icon:hover {
  animation: morphIcon 0.6s ease-in-out;
}

/* Loading and Skeleton Animations */
.loading-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.loading-shimmer {
  position: relative;
  overflow: hidden;
  background: var(--gray-200);
}

.loading-shimmer::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
  animation: shimmer 1.5s infinite;
}

/* Scroll-Linked Progress Indicators */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-blue), var(--accent-blue));
  z-index: 9999;
  transition: width 0.1s ease-out;
}

/* Stagger Animation Delays */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }
.stagger-6 { animation-delay: 0.6s; }

/* Interactive Hover States */
.hover-lift {
  transition: all var(--transition-normal);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.hover-glow {
  transition: all var(--transition-normal);
}

.hover-glow:hover {
  animation: pulseGlow 2s infinite;
}

.hover-rotate {
  transition: transform var(--transition-normal);
}

.hover-rotate:hover {
  transform: rotate(5deg) scale(1.05);
}

/* Text Animation Effects */
.text-reveal {
  overflow: hidden;
  position: relative;
}

.text-reveal::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--white);
  animation: slideInFromTop 0.8s ease-out forwards;
}

/* Navigation Animation Enhancements */
.nav-link {
  position: relative;
  overflow: hidden;
}

.nav-link:hover::before {
  left: 100%;
}

/* Form Input Animations */
.form-input:focus {
  animation: pulseGlow 2s infinite;
}

.form-group {
  position: relative;
}

.form-group::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--accent-blue);
  transition: all var(--transition-normal);
  transform: translateX(-50%);
}

.form-group:focus-within::after {
  width: 100%;
}

/* Performance Optimizations */
.gpu-accelerated {
  transform: translateZ(0);
  backface-visibility: hidden;
  perspective: 1000px;
  will-change: transform;
}

.optimize-animations {
  contain: layout style paint;
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .parallax,
  .float-element,
  .hero {
    animation: none !important;
    transform: none !important;
  }
}

/* High Performance Mode */
@media (prefers-reduced-data: reduce) {
  .hero::before,
  .glass-effect,
  .loading-shimmer::after {
    display: none;
  }
  
  .card:hover {
    transform: translateY(-2px);
  }
}

/* Dark Mode Animations */
@media (prefers-color-scheme: dark) {
  .glass-effect {
    background: rgba(0, 0, 0, 0.15);
    border-color: rgba(255, 255, 255, 0.1);
  }
  
  .hero::before {
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.05) 50%, transparent 70%);
  }
}

/* Mobile Optimized Animations */
@media (max-width: 767px) {
  .animate-on-scroll {
    transform: translateY(20px);
  }
  
  .card:hover {
    transform: translateY(-4px) scale(1.01);
  }
  
  .float-element {
    animation-duration: 6s;
  }
  
  .hero {
    animation-duration: 15s;
  }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
  .btn:hover::before,
  .card:hover::before,
  .nav-link:hover::before {
    display: none;
  }
  
  .btn:active {
    transform: scale(0.95);
  }
  
  .card:active {
    transform: scale(0.98);
  }
}