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

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

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

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

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

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

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

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

@keyframes floatX {
  0%, 100% {
    transform: translateX(0px);
  }
  50% {
    transform: translateX(20px);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(33, 150, 243, 0.3);
  }
  50% {
    box-shadow: 0 0 40px rgba(33, 150, 243, 0.6);
  }
}

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

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

/* Bounce Animation */
@keyframes bounce {
  0%, 20%, 53%, 80%, 100% {
    animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
    transform: translate3d(0, 0, 0);
  }
  40%, 43% {
    animation-timing-function: cubic-bezier(0.755, 0.05, 0.855, 0.06);
    transform: translate3d(0, -30px, 0);
  }
  70% {
    animation-timing-function: cubic-bezier(0.755, 0.05, 0.855, 0.06);
    transform: translate3d(0, -15px, 0);
  }
  90% {
    transform: translate3d(0, -4px, 0);
  }
}

/* Neural Network Animation */
@keyframes neuralPulse {
  0% {
    width: 0%;
    background: var(--gradient-ai);
  }
  50% {
    width: 100%;
    background: var(--gradient-primary);
  }
  100% {
    width: 0%;
    background: var(--gradient-ai);
  }
}

/* Typing Animation */
@keyframes typing {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}

@keyframes blink-caret {
  from, to {
    border-color: transparent;
  }
  50% {
    border-color: var(--primary-color);
  }
}

/* Card Hover Animations */
@keyframes cardHover {
  from {
    transform: translateY(0) scale(1);
    box-shadow: var(--shadow-md);
  }
  to {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-2xl);
  }
}

/* Skill Bar Animation */
@keyframes skillProgress {
  from {
    width: 0%;
  }
  to {
    width: var(--progress-width);
  }
}

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

/* Particle Animations */
@keyframes particle1 {
  0% {
    transform: translate(0, 0) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translate(100px, -100px) rotate(360deg);
    opacity: 0;
  }
}

@keyframes particle2 {
  0% {
    transform: translate(0, 0) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translate(-100px, -150px) rotate(-360deg);
    opacity: 0;
  }
}

@keyframes particle3 {
  0% {
    transform: translate(0, 0) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translate(150px, 50px) rotate(180deg);
    opacity: 0;
  }
}

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

/* Morphing Animation */
@keyframes morph {
  0%, 100% {
    border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
  }
  50% {
    border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%;
  }
}

/* Text Reveal Animation */
@keyframes textReveal {
  0% {
    clip-path: polygon(0 0, 0 0, 0 100%, 0% 100%);
  }
  100% {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
  }
}

/* Slide Up Animation */
@keyframes slideUp {
  from {
    transform: translateY(100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Slide Down Animation */
@keyframes slideDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

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

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

/* ===== ANIMATION UTILITY CLASSES ===== */
.animate-fade-in {
  animation: fadeIn 0.8s ease forwards;
}

.animate-fade-in-up {
  animation: fadeInUp 0.8s ease forwards;
}

.animate-fade-in-right {
  animation: fadeInRight 0.8s ease forwards;
}

.animate-fade-in-left {
  animation: fadeInLeft 0.8s ease forwards;
}

.animate-scale-in {
  animation: scaleIn 0.8s ease forwards;
}

.animate-slide-up {
  animation: slideUp 0.8s ease forwards;
}

.animate-slide-down {
  animation: slideDown 0.8s ease forwards;
}

.animate-zoom-in {
  animation: zoomIn 0.8s ease forwards;
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}

.animate-pulse {
  animation: pulse 2s ease-in-out infinite;
}

.animate-bounce {
  animation: bounce 2s infinite;
}

.animate-rotate {
  animation: rotate 4s linear infinite;
}

.animate-glow {
  animation: glow 2s ease-in-out infinite;
}

/* ===== SCROLL-TRIGGERED ANIMATIONS ===== */
.scroll-animate {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s ease;
}

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

.scroll-animate-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.8s ease;
}

.scroll-animate-left.in-view {
  opacity: 1;
  transform: translateX(0);
}

.scroll-animate-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.8s ease;
}

.scroll-animate-right.in-view {
  opacity: 1;
  transform: translateX(0);
}

.scroll-animate-scale {
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.8s ease;
}

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

/* ===== DELAY CLASSES ===== */
.delay-100 {
  animation-delay: 0.1s;
}

.delay-200 {
  animation-delay: 0.2s;
}

.delay-300 {
  animation-delay: 0.3s;
}

.delay-400 {
  animation-delay: 0.4s;
}

.delay-500 {
  animation-delay: 0.5s;
}

.delay-600 {
  animation-delay: 0.6s;
}

.delay-700 {
  animation-delay: 0.7s;
}

.delay-800 {
  animation-delay: 0.8s;
}

.delay-900 {
  animation-delay: 0.9s;
}

.delay-1000 {
  animation-delay: 1s;
}

/* ===== DURATION CLASSES ===== */
.duration-fast {
  animation-duration: 0.3s;
}

.duration-normal {
  animation-duration: 0.6s;
}

.duration-slow {
  animation-duration: 1s;
}

.duration-slower {
  animation-duration: 1.5s;
}

/* ===== HOVER ANIMATIONS ===== */
.hover-lift {
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.hover-lift:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

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

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

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

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

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

.hover-glow:hover {
  box-shadow: 0 0 30px rgba(33, 150, 243, 0.4);
}

/* ===== LOADING STATES ===== */
.loading-skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-elevated) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ===== MICRO-INTERACTIONS ===== */
.ripple {
  position: relative;
  overflow: hidden;
}

.ripple::before {
  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 0.3s, height 0.3s;
}

.ripple:active::before {
  width: 300px;
  height: 300px;
}

/* ===== PERFORMANCE OPTIMIZATIONS ===== */
.will-change-transform {
  will-change: transform;
}

.will-change-opacity {
  will-change: opacity;
}

.will-change-scroll {
  will-change: scroll-position;
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .floating-shape,
  .orbit-ring,
  .orbit-item {
    animation: none !important;
  }
}