/* Animations */

/* Fade In */
@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);
  }
}

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

@keyframes scaleDown {
  from {
    opacity: 0;
    transform: scale(1.1);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Bounce */
@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@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);
  }
}

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

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

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

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

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

/* Utility Classes */
.animate-fadeIn {
  animation: fadeIn var(--transition-base) ease-out;
}

.animate-fadeInUp {
  animation: fadeInUp var(--transition-base) ease-out;
}

.animate-fadeInDown {
  animation: fadeInDown var(--transition-base) ease-out;
}

.animate-fadeInLeft {
  animation: fadeInLeft var(--transition-base) ease-out;
}

.animate-fadeInRight {
  animation: fadeInRight var(--transition-base) ease-out;
}

.animate-scaleUp {
  animation: scaleUp var(--transition-base) ease-out;
}

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

.animate-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.animate-rotate {
  animation: rotate 2s linear infinite;
}

/* Transition utilities */
.transition-all {
  transition: all var(--transition-base);
}

.transition-colors {
  transition: color var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
}

.transition-transform {
  transition: transform var(--transition-base);
}

.transition-opacity {
  transition: opacity var(--transition-base);
}

/* Hover effects */
.hover-lift:hover {
  transform: translateY(-4px);
}

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

.hover-glow:hover {
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-left.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-right.active {
  opacity: 1;
  transform: translateX(0);
}

/* Stagger animations */
.stagger-item {
  opacity: 0;
  transform: translateY(20px);
}

.stagger-item.active {
  animation: fadeInUp 0.6s ease-out forwards;
}

.stagger-item:nth-child(1) { animation-delay: 0.1s; }
.stagger-item:nth-child(2) { animation-delay: 0.2s; }
.stagger-item:nth-child(3) { animation-delay: 0.3s; }
.stagger-item:nth-child(4) { animation-delay: 0.4s; }
.stagger-item:nth-child(5) { animation-delay: 0.5s; }
.stagger-item:nth-child(6) { animation-delay: 0.6s; }

/* Loading spinner */
.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--color-gray-300);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: rotate 1s linear infinite;
}

/* Gradient background animation */
.gradient-animated {
  background: linear-gradient(270deg, var(--color-primary), var(--color-secondary), var(--color-accent));
  background-size: 600% 600%;
  animation: gradientShift 10s ease infinite;
}

/* ============================================
   GSAP Animation Classes
   ============================================ */

/* Fade In Up - Initial state */
.fade-in-up {
  opacity: 0;
  transform: translateY(40px);
  will-change: transform, opacity;
}

/* Visible state (for CSS fallback) */
.fade-in-up.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

/* Fallback for no-JS */
.no-js .fade-in-up {
  opacity: 1;
  transform: none;
}

.hero-description.fade-in-up {
  opacity: 1;
  transform: none;
  animation: none !important;
}

.no-gsap .hero-description,
.mobile-animations .hero-description {
  opacity: 1 !important;
  transform: none !important;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  .fade-in-up {
    opacity: 1;
    transform: none;
    animation: none;
    transition: none;
  }
  
  .fade-in-up.is-visible {
    transition: none;
  }
  
  [data-speed] {
    transform: none !important;
  }
}

/* Parallax layers */
[data-speed] {
  will-change: transform;
}

/* Hero Parallax Background */
.hero-parallax-bg {
  will-change: transform;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

/* Counter animation */
.counter {
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum";
}

/* Stagger Grid Items */
.stagger-grid > * {
  opacity: 0;
  transform: translateY(30px);
}

.stagger-grid.animated > * {
  opacity: 1;
  transform: translateY(0);
}

/* Card hover effects (GSAP controlled) */
.card-animated {
  will-change: transform;
  transition: box-shadow 0.3s ease;
}

.card-animated:hover {
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

/* Split Text Animation */
.split-text .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(50px);
}

.split-text.animated .char {
  opacity: 1;
  transform: translateY(0);
}

/* Magnetic Wrapper */
.magnetic-wrapper {
  display: inline-block;
  will-change: transform;
}

/* Scale on Scroll */
.scale-on-scroll {
  will-change: transform;
  backface-visibility: hidden;
}

/* Line Draw Animation */
.line-draw {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
}

.line-draw.animated {
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 1.5s ease-out;
}

/* Reveal Mask */
.reveal-mask {
  overflow: hidden;
}

.reveal-mask-inner {
  transform: translateY(100%);
  will-change: transform;
}

.reveal-mask.animated .reveal-mask-inner {
  transform: translateY(0);
}

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

.float-animation {
  animation: float 6s ease-in-out infinite;
}

/* GPU Acceleration hint */
.gpu-accelerated {
  transform: translateZ(0);
  backface-visibility: hidden;
  perspective: 1000px;
}

/* Performance: disable animations during resize */
.resize-animation-stopper * {
  animation: none !important;
  transition: none !important;
}