/* ============================================
   ANIMATIONS.CSS
   AOS (Animate On Scroll), Keyframes, Effects
   ============================================ */

/* ===== FADE IN ANIMATIONS ===== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

@keyframes fadeInDown {
  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);
  }
}

/* ===== ZOOM ANIMATIONS ===== */
@keyframes zoomIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes zoomInUp {
  from {
    opacity: 0;
    transform: scale(0.8) translateY(30px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* ===== SLIDE ANIMATIONS ===== */
@keyframes slideInLeft {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
  }
  to {
    transform: translateX(0);
  }
}

@keyframes slideInUp {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}

@keyframes slideInDown {
  from {
    transform: translateY(-100%);
  }
  to {
    transform: translateY(0);
  }
}

/* ===== FLIP ANIMATIONS ===== */
@keyframes flipInX {
  from {
    opacity: 0;
    transform: perspective(400px) rotateX(90deg);
  }
  to {
    opacity: 1;
    transform: perspective(400px) rotateX(0deg);
  }
}

@keyframes flipInY {
  from {
    opacity: 0;
    transform: perspective(400px) rotateY(90deg);
  }
  to {
    opacity: 1;
    transform: perspective(400px) rotateY(0deg);
  }
}

/* ===== BOUNCE ANIMATIONS ===== */
@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

@keyframes bounceIn {
  0% {
    opacity: 0;
    transform: scale(0.5);
  }
  50% {
    opacity: 1;
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}

/* ===== SWING ANIMATION ===== */
@keyframes swing {
  20% {
    transform: rotate(15deg);
  }
  40% {
    transform: rotate(-10deg);
  }
  60% {
    transform: rotate(5deg);
  }
  80% {
    transform: rotate(-5deg);
  }
  100% {
    transform: rotate(0deg);
  }
}

/* ===== HEARTBEAT ANIMATION ===== */
@keyframes heartbeat {
  0%, 100% {
    transform: scale(1);
  }
  25% {
    transform: scale(1.2);
  }
  50% {
    transform: scale(1);
  }
}

/* ===== BLINK ANIMATION ===== */
@keyframes blink {
  0%, 50%, 100% {
    opacity: 1;
  }
  25%, 75% {
    opacity: 0.5;
  }
}

/* ===== JELLO ANIMATION ===== */
@keyframes jello {
  0%, 11.1%, 100% {
    transform: skewX(0deg) skewY(0deg);
  }
  22.2% {
    transform: skewX(-12.5deg) skewY(-12.5deg);
  }
  33.3% {
    transform: skewX(6.25deg) skewY(6.25deg);
  }
  44.4% {
    transform: skewX(-3.125deg) skewY(-3.125deg);
  }
  55.5% {
    transform: skewX(1.5625deg) skewY(1.5625deg);
  }
  66.6% {
    transform: skewX(-0.78125deg) skewY(-0.78125deg);
  }
  77.7% {
    transform: skewX(0.390625deg) skewY(0.390625deg);
  }
  88.8% {
    transform: skewX(-0.1953125deg) skewY(-0.1953125deg);
  }
}

/* ===== WOBBLE ANIMATION ===== */
@keyframes wobble {
  0% {
    transform: translateX(0);
  }
  15% {
    transform: translateX(-25px) rotate(-5deg);
  }
  30% {
    transform: translateX(20px) rotate(3deg);
  }
  45% {
    transform: translateX(-15px) rotate(-3deg);
  }
  60% {
    transform: translateX(10px) rotate(2deg);
  }
  75% {
    transform: translateX(-5px) rotate(-1deg);
  }
  100% {
    transform: translateX(0);
  }
}

/* ===== RUBBER BAND ANIMATION ===== */
@keyframes rubberBand {
  0%, 100% {
    transform: scale(1);
  }
  30% {
    transform: scaleX(1.25) scaleY(0.75);
  }
  40% {
    transform: scaleX(0.75) scaleY(1.25);
  }
  50% {
    transform: scaleX(1.15) scaleY(0.85);
  }
  65% {
    transform: scaleX(0.95) scaleY(1.05);
  }
  75% {
    transform: scaleX(1.05) scaleY(0.95);
  }
}

/* ===== SWING DURATION VARIANTS ===== */
.animate-fade-in {
  animation: fadeIn 0.8s ease-out;
}

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

.animate-fade-in-down {
  animation: fadeInDown 0.8s ease-out;
}

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

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

.animate-zoom-in {
  animation: zoomIn 0.6s ease-out;
}

.animate-slide-in-left {
  animation: slideInLeft 0.6s ease-out;
}

.animate-slide-in-right {
  animation: slideInRight 0.6s ease-out;
}

.animate-bounce {
  animation: bounce 1s ease-in-out infinite;
}

.animate-swing {
  animation: swing 1s ease-in-out;
}

.animate-heartbeat {
  animation: heartbeat 1.3s ease-in-out infinite;
}

.animate-jello {
  animation: jello 0.9s ease-in-out;
}

.animate-wobble {
  animation: wobble 0.8s ease-in-out;
}

.animate-rubber-band {
  animation: rubberBand 0.6s ease-in-out;
}

/* ===== STAGGER ANIMATIONS ===== */
.stagger-items > * {
  animation: fadeInUp 0.6s ease-out;
}

.stagger-items > *:nth-child(1) { animation-delay: 0s; }
.stagger-items > *:nth-child(2) { animation-delay: 0.1s; }
.stagger-items > *:nth-child(3) { animation-delay: 0.2s; }
.stagger-items > *:nth-child(4) { animation-delay: 0.3s; }
.stagger-items > *:nth-child(5) { animation-delay: 0.4s; }
.stagger-items > *:nth-child(n+6) { animation-delay: 0.5s; }

/* ===== AOS SCROLL TRIGGER ANIMATIONS ===== */
[data-aos] {
  opacity: 0;
}

[data-aos].aos-animate {
  opacity: 1;
}

/* Fade variants */
[data-aos="fade-up"].aos-animate {
  animation: fadeInUp 0.8s ease-out forwards;
}

[data-aos="fade-down"].aos-animate {
  animation: fadeInDown 0.8s ease-out forwards;
}

[data-aos="fade-left"].aos-animate {
  animation: fadeInLeft 0.8s ease-out forwards;
}

[data-aos="fade-right"].aos-animate {
  animation: fadeInRight 0.8s ease-out forwards;
}

[data-aos="fade-in"].aos-animate {
  animation: fadeIn 0.8s ease-out forwards;
}

/* Zoom variants */
[data-aos="zoom-in"].aos-animate {
  animation: zoomIn 0.6s ease-out forwards;
}

[data-aos="zoom-in-up"].aos-animate {
  animation: zoomInUp 0.6s ease-out forwards;
}

/* Flip variants */
[data-aos="flip-left"].aos-animate {
  animation: flipInY 0.6s ease-out forwards;
}

[data-aos="flip-right"].aos-animate {
  animation: flipInY 0.6s ease-out forwards;
}

/* Slide variants */
[data-aos="slide-up"].aos-animate {
  animation: slideInUp 0.6s ease-out forwards;
}

[data-aos="slide-down"].aos-animate {
  animation: slideInDown 0.6s ease-out forwards;
}

[data-aos="slide-left"].aos-animate {
  animation: slideInLeft 0.6s ease-out forwards;
}

[data-aos="slide-right"].aos-animate {
  animation: slideInRight 0.6s ease-out forwards;
}

/* Bounce variant */
[data-aos="bounce-in"].aos-animate {
  animation: bounceIn 0.6s ease-out forwards;
}

/* ===== COUNTER ANIMATION ===== */
@keyframes counterUp {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.counter-number {
  animation: counterUp 0.6s ease-out;
  font-weight: 700;
  color: var(--color-primary);
}

/* ===== SCROLL PROGRESS ANIMATION ===== */
.scroll-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  width: 0%;
  z-index: 1001;
  transition: width 0.1s ease;
}

/* ===== TYPEWRITER EFFECT ===== */
@keyframes typewriter {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}

@keyframes blinker {
  50% {
    opacity: 0;
  }
}

.typewriter {
  overflow: hidden;
  border-right: 2px solid var(--color-primary);
  white-space: nowrap;
  animation: typewriter 3s steps(40, end),
             blinker 0.75s step-start infinite;
}

/* ===== DELAY MODIFIERS ===== */
.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; }

/* ===== DURATION MODIFIERS ===== */
.duration-300 { animation-duration: 0.3s; }
.duration-500 { animation-duration: 0.5s; }
.duration-700 { animation-duration: 0.7s; }
.duration-1000 { animation-duration: 1s; }
.duration-2000 { animation-duration: 2s; }

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

/* ===== LOADING SPINNER ===== */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spinner-lg {
  width: 40px;
  height: 40px;
  border-width: 4px;
}

/* ===== GRADIENT TEXT ANIMATION ===== */
@keyframes gradientText {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.gradient-text {
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-primary-light));
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientText 3s ease infinite;
}

/* ===== BLUR EFFECT ANIMATION ===== */
@keyframes blurAnimation {
  0%, 100% {
    filter: blur(0px);
  }
  50% {
    filter: blur(2px);
  }
}

.blur-animation {
  animation: blurAnimation 2s ease-in-out infinite;
}