/* Animation Base Classes */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in.animate {
  opacity: 1;
  transform: translateY(0);
}

.slide-up {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-up.animate {
  opacity: 1;
  transform: translateY(0);
}

.slide-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.slide-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Staggered Animation Delays */
.fade-in:nth-child(1) { transition-delay: 0s; }
.fade-in:nth-child(2) { transition-delay: 0.1s; }
.fade-in:nth-child(3) { transition-delay: 0.2s; }
.fade-in:nth-child(4) { transition-delay: 0.3s; }
.fade-in:nth-child(5) { transition-delay: 0.4s; }
.fade-in:nth-child(6) { transition-delay: 0.5s; }

.slide-up:nth-child(1) { transition-delay: 0s; }
.slide-up:nth-child(2) { transition-delay: 0.15s; }
.slide-up:nth-child(3) { transition-delay: 0.3s; }
.slide-up:nth-child(4) { transition-delay: 0.45s; }
.slide-up:nth-child(5) { transition-delay: 0.6s; }
.slide-up:nth-child(6) { transition-delay: 0.75s; }

/* Typewriter Effect */
.typewriter {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 600;
  color: var(--primary-500);
  border-right: 2px solid var(--primary-500);
  white-space: nowrap;
  overflow: hidden;
  display: inline-block;
  animation: blink-cursor 1s infinite;
}

@keyframes blink-cursor {
  0%, 50% { border-color: var(--primary-500); }
  51%, 100% { border-color: transparent; }
}

/* Hover Animations */
.hover-lift {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px -3px rgba(0, 0, 0, 0.1);
}

.hover-scale {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.hover-glow {
  transition: all 0.3s ease;
}

.hover-glow:hover {
  box-shadow: 0 0 20px var(--primary-500);
}

/* Pulse Animation */
.pulse {
  animation: pulse 2s infinite;
}

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

/* Bounce Animation */
.bounce {
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 53%, 80%, 100% {
    transform: translateY(0);
  }
  40%, 43% {
    transform: translateY(-10px);
  }
  70% {
    transform: translateY(-5px);
  }
  90% {
    transform: translateY(-2px);
  }
}

/* Rotate Animation */
.rotate {
  animation: rotate 2s linear infinite;
}

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

/* Shake Animation */
.shake {
  animation: shake 0.5s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
  20%, 40%, 60%, 80% { transform: translateX(5px); }
}

/* Loading Spinner */
.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--border-color);
  border-top: 4px solid var(--primary-500);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Gradient Animation */
.gradient-bg {
  background: linear-gradient(-45deg, var(--primary-500), var(--accent-pink), var(--accent-purple), var(--accent-cyan));
  background-size: 400% 400%;
  animation: gradient-shift 15s ease infinite;
}

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

/* Text Gradient Animation */
.text-gradient-animate {
  background: linear-gradient(-45deg, var(--primary-500), var(--accent-pink), var(--accent-purple), var(--accent-cyan));
  background-size: 400% 400%;
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradient-shift 15s ease infinite;
}

/* Floating Animation */
.floating {
  animation: floating 3s ease-in-out infinite;
}

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

/* Particle Effects */
.particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
}

.particle {
  position: absolute;
  background: var(--primary-500);
  border-radius: 50%;
  opacity: 0.6;
  animation: particle-float 10s infinite linear;
}

@keyframes particle-float {
  0% {
    transform: translateY(100vh) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 0.6;
  }
  90% {
    opacity: 0.6;
  }
  100% {
    transform: translateY(-100px) rotate(360deg);
    opacity: 0;
  }
}

/* Glitch Effect */
.glitch {
  position: relative;
  animation: glitch 2s infinite;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.glitch::before {
  animation: glitch-1 0.5s infinite;
  color: var(--accent-pink);
  z-index: -1;
}

.glitch::after {
  animation: glitch-2 0.5s infinite;
  color: var(--accent-cyan);
  z-index: -2;
}

@keyframes glitch {
  0%, 100% { transform: translate(0); }
  20% { transform: translate(-2px, 2px); }
  40% { transform: translate(-2px, -2px); }
  60% { transform: translate(2px, 2px); }
  80% { transform: translate(2px, -2px); }
}

@keyframes glitch-1 {
  0%, 100% { transform: translate(0); }
  10% { transform: translate(-2px, -2px); }
  20% { transform: translate(2px, 2px); }
  30% { transform: translate(-2px, 2px); }
  40% { transform: translate(2px, -2px); }
  50% { transform: translate(-2px, -2px); }
  60% { transform: translate(2px, 2px); }
  70% { transform: translate(-2px, 2px); }
  80% { transform: translate(2px, -2px); }
  90% { transform: translate(-2px, -2px); }
}

@keyframes glitch-2 {
  0%, 100% { transform: translate(0); }
  10% { transform: translate(2px, 2px); }
  20% { transform: translate(-2px, -2px); }
  30% { transform: translate(2px, -2px); }
  40% { transform: translate(-2px, 2px); }
  50% { transform: translate(2px, 2px); }
  60% { transform: translate(-2px, -2px); }
  70% { transform: translate(2px, -2px); }
  80% { transform: translate(-2px, 2px); }
  90% { transform: translate(2px, 2px); }
}

/* Neon Glow Effect */
.neon-glow {
  text-shadow: 
    0 0 5px var(--primary-500),
    0 0 10px var(--primary-500),
    0 0 15px var(--primary-500),
    0 0 20px var(--primary-500);
  animation: neon-flicker 1.5s infinite alternate;
}

@keyframes neon-flicker {
  0%, 100% {
    text-shadow: 
      0 0 5px var(--primary-500),
      0 0 10px var(--primary-500),
      0 0 15px var(--primary-500),
      0 0 20px var(--primary-500);
  }
  50% {
    text-shadow: 
      0 0 2px var(--primary-500),
      0 0 5px var(--primary-500),
      0 0 8px var(--primary-500),
      0 0 12px var(--primary-500);
  }
}

/* Matrix Rain Effect */
.matrix-rain {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  opacity: 0.1;
}

.matrix-char {
  position: absolute;
  color: var(--primary-500);
  font-family: 'Courier New', monospace;
  font-size: 14px;
  animation: matrix-fall 3s linear infinite;
}

@keyframes matrix-fall {
  to {
    transform: translateY(100vh);
  }
}

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

/* Morphing Shapes */
.morphing-shape {
  width: 100px;
  height: 100px;
  background: linear-gradient(45deg, var(--primary-500), var(--accent-purple));
  border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  animation: morph 8s ease-in-out infinite;
}

@keyframes morph {
  0%, 100% {
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  }
  25% {
    border-radius: 58% 42% 75% 25% / 76% 46% 54% 24%;
  }
  50% {
    border-radius: 50% 50% 33% 67% / 55% 27% 73% 45%;
  }
  75% {
    border-radius: 33% 67% 58% 42% / 63% 68% 32% 37%;
  }
}

/* Preloader Animations */
.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  opacity: 1;
  transition: opacity 0.5s ease;
}

.preloader.fade-out {
  opacity: 0;
  pointer-events: none;
}

.preloader-content {
  text-align: center;
}

.preloader-logo {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1rem;
  animation: pulse 2s infinite;
}

/* Scroll Reveal Animations */
.reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Button Ripple Effect */
.btn-ripple {
  position: relative;
  overflow: hidden;
}

.btn-ripple::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn-ripple:active::after {
  width: 300px;
  height: 300px;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ===== KEYFRAME ANIMATIONS ===== */

/* Typewriter Effect */
@keyframes typewriter {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}

@keyframes blink {
  0%, 50% {
    opacity: 1;
  }
  51%, 100% {
    opacity: 0;
  }
}

.typewriter {
  display: inline-block;
  overflow: hidden;
  white-space: nowrap;
  animation: typewriter 3s steps(40, end);
}

.cursor {
  display: inline-block;
  background-color: var(--primary-500);
  margin-left: 2px;
  width: 2px;
  animation: blink 1s infinite;
}

/* Fade In Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

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

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(100px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Floating Animation */
@keyframes float {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(180deg);
  }
}

@keyframes floatSlow {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-15px);
  }
}

@keyframes floatFast {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-25px);
  }
}

/* Pulse Animation */
@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}

/* Glow Effect */
@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
  }
  50% {
    box-shadow: 0 0 40px rgba(59, 130, 246, 0.6);
  }
}

/* Bounce Animation */
@keyframes bounce {
  0%, 20%, 53%, 80%, 100% {
    transform: translate3d(0, 0, 0);
  }
  40%, 43% {
    transform: translate3d(0, -30px, 0);
  }
  70% {
    transform: translate3d(0, -15px, 0);
  }
  90% {
    transform: translate3d(0, -4px, 0);
  }
}

/* Shake Animation */
@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-5px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(5px);
  }
}

/* Zoom In Animation */
@keyframes zoomIn {
  from {
    opacity: 0;
    transform: scale(0.3);
  }
  50% {
    opacity: 1;
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Rotate Animation */
@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Gradient Animation */
@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* Particles Animation */
@keyframes particle-float {
  0%, 100% {
    transform: translateY(0px) translateX(0px) rotate(0deg);
  }
  33% {
    transform: translateY(-30px) translateX(30px) rotate(120deg);
  }
  66% {
    transform: translateY(30px) translateX(-20px) rotate(240deg);
  }
}

/* ===== ANIMATION CLASSES ===== */

/* Intersection Observer Animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

.fade-in.animate {
  opacity: 1;
  transform: translateY(0);
}

.slide-up {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s ease-out;
}

.slide-up.animate {
  opacity: 1;
  transform: translateY(0);
}

.slide-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.6s ease-out;
}

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

.slide-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.6s ease-out;
}

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

.zoom-in {
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.6s ease-out;
}

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

/* Stagger Animations */
.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; }

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

.hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-large);
}

.hover-scale {
  transition: transform var(--transition-fast);
}

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

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

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

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

.hover-glow:hover {
  box-shadow: 0 0 30px rgba(59, 130, 246, 0.4);
}

/* Floating Elements */
.float-element {
  animation: floatSlow 6s ease-in-out infinite;
}

.float-element:nth-child(2n) {
  animation: floatFast 4s ease-in-out infinite;
  animation-delay: 2s;
}

.float-element:nth-child(3n) {
  animation: float 8s ease-in-out infinite;
  animation-delay: 1s;
}

/* Continuous Animations */
.pulse-continuous {
  animation: pulse 2s ease-in-out infinite;
}

.glow-continuous {
  animation: glow 3s ease-in-out infinite;
}

.rotate-continuous {
  animation: rotate 20s linear infinite;
}

.gradient-shift {
  background-size: 200% 200%;
  animation: gradientShift 3s ease infinite;
}

/* Particle System */
.particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--primary-500);
  border-radius: 50%;
  animation: particle-float 15s ease-in-out infinite;
  opacity: 0.6;
}

.particle:nth-child(2n) {
  background: var(--accent-pink);
  animation-duration: 20s;
  animation-delay: 2s;
}

.particle:nth-child(3n) {
  background: var(--accent-purple);
  animation-duration: 18s;
  animation-delay: 4s;
}

.particle:nth-child(4n) {
  background: var(--accent-cyan);
  animation-duration: 22s;
  animation-delay: 1s;
}

/* Loading Animations */
.loading-dots {
  display: inline-flex;
  gap: 4px;
}

.loading-dots span {
  width: 6px;
  height: 6px;
  background: var(--primary-500);
  border-radius: 50%;
  animation: bounce 1.4s ease-in-out infinite both;
}

.loading-dots span:nth-child(1) { animation-delay: -0.32s; }
.loading-dots span:nth-child(2) { animation-delay: -0.16s; }

.loading-spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-top: 2px solid var(--primary-500);
  border-radius: 50%;
  animation: rotate 1s linear infinite;
}

/* Text Animations */
.text-focus-in {
  animation: text-focus-in 1s cubic-bezier(0.55, 0.055, 0.675, 0.19) both;
}

@keyframes text-focus-in {
  0% {
    filter: blur(12px);
    opacity: 0;
  }
  100% {
    filter: blur(0px);
    opacity: 1;
  }
}

.text-shadow-pop-top {
  animation: text-shadow-pop-top 0.6s both;
}

@keyframes text-shadow-pop-top {
  0% {
    text-shadow: 0 0 #555555, 0 0 #555555, 0 0 #555555, 0 0 #555555;
    transform: translateY(0);
  }
  100% {
    text-shadow: 0 -1px #555555, 0 -2px #555555, 0 -3px #555555, 0 -4px #555555;
    transform: translateY(-4px);
  }
}

/* Button Animations */
.btn-magnetic {
  position: relative;
  transition: all var(--transition-fast);
}

.btn-magnetic:hover {
  transform: translateY(-2px);
}

.btn-magnetic::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: inherit;
  border-radius: inherit;
  opacity: 0;
  transform: scale(0.8);
  transition: all var(--transition-normal);
  z-index: -1;
}

.btn-magnetic:hover::before {
  opacity: 0.3;
  transform: scale(1.1);
}

/* Scroll Animations */
.scroll-fade {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

/* Special Effects */
.neon-glow {
  text-shadow: 
    0 0 5px var(--primary-500),
    0 0 10px var(--primary-500),
    0 0 15px var(--primary-500),
    0 0 20px var(--primary-500);
  animation: neon-flicker 2s ease-in-out infinite alternate;
}

@keyframes neon-flicker {
  0%, 100% {
    text-shadow: 
      0 0 5px var(--primary-500),
      0 0 10px var(--primary-500),
      0 0 15px var(--primary-500),
      0 0 20px var(--primary-500);
  }
  50% {
    text-shadow: 
      0 0 2px var(--primary-500),
      0 0 5px var(--primary-500),
      0 0 8px var(--primary-500),
      0 0 12px var(--primary-500);
  }
}

/* Glitch Effect */
.glitch {
  position: relative;
  animation: glitch 2s infinite;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.glitch::before {
  animation: glitch-1 0.5s infinite;
  color: var(--accent-cyan);
  z-index: -1;
}

.glitch::after {
  animation: glitch-2 0.5s infinite;
  color: var(--accent-pink);
  z-index: -2;
}

@keyframes glitch {
  0%, 100% {
    transform: translate(0);
  }
  20% {
    transform: translate(-2px, 2px);
  }
  40% {
    transform: translate(-2px, -2px);
  }
  60% {
    transform: translate(2px, 2px);
  }
  80% {
    transform: translate(2px, -2px);
  }
}

@keyframes glitch-1 {
  0%, 100% {
    transform: translate(0);
  }
  20% {
    transform: translate(-2px, 2px);
  }
  40% {
    transform: translate(-2px, -2px);
  }
  60% {
    transform: translate(2px, 2px);
  }
  80% {
    transform: translate(2px, -2px);
  }
}

@keyframes glitch-2 {
  0%, 100% {
    transform: translate(0);
  }
  20% {
    transform: translate(2px, -2px);
  }
  40% {
    transform: translate(2px, 2px);
  }
  60% {
    transform: translate(-2px, -2px);
  }
  80% {
    transform: translate(-2px, 2px);
  }
}

/* ===== RESPONSIVE ANIMATION CONTROLS ===== */

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  .fade-in,
  .slide-up,
  .slide-left,
  .slide-right,
  .zoom-in,
  .hover-lift,
  .hover-scale,
  .hover-rotate,
  .float-element,
  .pulse-continuous,
  .glow-continuous,
  .rotate-continuous,
  .particle {
    animation: none !important;
    transition: none !important;
  }
  
  .typewriter {
    animation: none;
    width: auto;
  }
  
  .cursor {
    animation: none;
    opacity: 1;
  }
}

/* Performance optimizations */
.will-change {
  will-change: transform, opacity;
}

.gpu-accelerate {
  transform: translateZ(0);
  backface-visibility: hidden;
  perspective: 1000px;
}

/* Dark mode adjustments */
[data-theme="dark"] .particle {
  opacity: 0.4;
}

[data-theme="dark"] .neon-glow {
  text-shadow: 
    0 0 5px var(--primary-400),
    0 0 10px var(--primary-400),
    0 0 15px var(--primary-400),
    0 0 20px var(--primary-400);
}

/* Mobile optimizations */
@media (max-width: 768px) {
  .float-element {
    animation-duration: 8s;
  }
  
  .particle {
    animation-duration: 25s;
  }
  
  .hover-lift:hover {
    transform: translateY(-4px);
  }
  
  .hover-scale:hover {
    transform: scale(1.02);
  }
}