/* ═══════════════════════════════════════════════════════════════════════════════
   ANIMATIONS - Keyframes & GSAP Helpers
   ═══════════════════════════════════════════════════════════════════════════════ */

/* ════ KEYFRAME ANIMATIONS ════ */

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

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

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideLeft {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideRight {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes scaleOut {
  from {
    opacity: 1;
    transform: scale(1);
  }
  to {
    opacity: 0;
    transform: scale(0.95);
  }
}

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

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

@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

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

@keyframes glowPulse {
  0%, 100% {
    box-shadow: 0 0 5px rgba(37, 99, 235, 0.5);
  }
  50% {
    box-shadow: 0 0 20px rgba(37, 99, 235, 0.8);
  }
}

/* Additional keyframe animations */
@keyframes heartbeat {
  0%, 100% {
    transform: scale(1);
  }
  25% {
    transform: scale(1.3);
  }
  50% {
    transform: scale(1);
  }
}

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

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

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

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

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

/* ════ ANIMATION UTILITY CLASSES ════ */

.fade-in {
  animation: fadeIn var(--duration-slow) var(--ease-in-out) forwards;
}

.fade-out {
  animation: fadeOut var(--duration-slow) var(--ease-in-out) forwards;
}

.fade-up {
  opacity: 0;
  transform: translateY(20px);
}

.fade-down {
  opacity: 0;
  transform: translateY(-20px);
}

.fade-left {
  opacity: 0;
  transform: translateX(20px);
}

.fade-right {
  opacity: 0;
  transform: translateX(-20px);
}

.scale-up {
  opacity: 0;
  transform: scale(0.95);
}

.scale-down {
  opacity: 0;
  transform: scale(1.05);
}

.bounce {
  animation: bounce 0.6s ease infinite;
}

.pulse {
  animation: pulse 1.5s ease-in-out infinite;
}

.shimmer {
  animation: shimmer 2s infinite;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0),
    rgba(255, 255, 255, 0.2),
    rgba(255, 255, 255, 0)
  );
  background-size: 1000px 100%;
}

.rotate {
  animation: rotate 1s linear infinite;
}

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

/* Additional utility classes */
.heartbeat {
  animation: heartbeat 1.2s ease-in-out infinite;
}

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

.spin {
  animation: spin 1s linear infinite;
}

.shake {
  animation: shake 0.4s ease-in-out;
}

.fade-in-scale {
  animation: fadeInScale 0.6s ease-out forwards;
}

.slide-up-fade {
  animation: slideUpFade 0.6s ease-out forwards;
}

/* ════ DURATION CLASSES ════ */
.duration-100 {
  animation-duration: 0.1s;
}

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

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

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

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

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

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

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

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

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

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

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

/* ════ EASING CLASSES ════ */
.ease-linear {
  animation-timing-function: linear;
}

.ease-in {
  animation-timing-function: ease-in;
}

.ease-out {
  animation-timing-function: ease-out;
}

.ease-in-out {
  animation-timing-function: ease-in-out;
}

/* ════ HOVER ANIMATIONS ════ */
.hover-scale:hover {
  transform: scale(1.05);
  transition: transform 0.3s ease;
}

.hover-lift:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.hover-glow:hover {
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
  transition: box-shadow 0.3s ease;
}

.hover-rotate:hover {
  transform: rotate(5deg);
  transition: transform 0.3s ease;
}

.hover-brightness:hover {
  filter: brightness(1.1);
  transition: filter 0.3s ease;
}

/* ════ TRANSITION UTILITIES ════ */
.transition-all {
  transition: all 0.3s ease;
}

.transition-smooth {
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.transition-fast {
  transition: all 0.15s ease;
}

.transition-slow {
  transition: all 0.8s ease;
}

/* ════ PROGRESS BAR ════ */
#progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  z-index: 1000;
  background: linear-gradient(
    90deg,
    var(--color-blue-2),
    var(--color-blue-3),
    #93c5fd
  );
  width: 0%;
  box-shadow: 0 0 12px rgba(37, 99, 235, 0.5);
  transition: width 0.15s ease;
  will-change: width;
}

/* ════ CUSTOM CURSOR ════ */
#cursor {
  position: fixed;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-blue-3);
  z-index: 9999;
  pointer-events: none;
  top: 0;
  left: 0;
  will-change: transform;
  transform: translate(-5px, -5px);
}

#cursor-ring {
  position: fixed;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1.5px solid rgba(59, 123, 255, 0.45);
  z-index: 9998;
  pointer-events: none;
  top: 0;
  left: 0;
  will-change: transform;
  transform: translate(-18px, -18px);
  transition: scale var(--duration-normal) ease, opacity var(--duration-normal) ease;
}

#cursor-ring.hovered {
  scale: 1.6;
  opacity: 0.6;
  border-color: var(--color-blue-3);
}

/* ════ GSAP ANIMATION HELPERS ════ */

.gsap-fade-up {
  opacity: 0;
  transform: translateY(30px);
}

.gsap-fade-in {
  opacity: 0;
}

.gsap-scale-in {
  opacity: 0;
  transform: scale(0.9);
}

.gsap-rotate-in {
  opacity: 0;
  transform: rotate(-10deg) scale(0.9);
}

.gsap-stagger-child {
  opacity: 0;
  transform: translateY(20px);
}

/* Additional GSAP helpers */
.gsap-slide-left {
  opacity: 0;
  transform: translateX(-30px);
}

.gsap-slide-right {
  opacity: 0;
  transform: translateX(30px);
}

.gsap-bounce-in {
  opacity: 0;
  transform: scale(0.3);
}

/* ════ FILL MODE CLASSES ════ */
.fill-forward {
  animation-fill-mode: forwards;
}

.fill-both {
  animation-fill-mode: both;
}

.fill-backwards {
  animation-fill-mode: backwards;
}

/* ════ ITERATION CLASSES ════ */
.repeat-infinite {
  animation-iteration-count: infinite;
}

.repeat-once {
  animation-iteration-count: 1;
}

.repeat-2 {
  animation-iteration-count: 2;
}

.repeat-3 {
  animation-iteration-count: 3;
}

/* ════ ACCESSIBILITY ════ */
@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;
  }

  #cursor,
  #cursor-ring {
    display: none !important;
  }

  #progress {
    display: none !important;
  }

  /* Disable scroll-triggered animations */
  .fade-up,
  .fade-down,
  .fade-left,
  .fade-right,
  .scale-up,
  .scale-down,
  .gsap-fade-up,
  .gsap-fade-in,
  .gsap-scale-in,
  .gsap-rotate-in,
  .gsap-stagger-child {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ════ RESPONSIVE ════ */
@media (max-width: 768px) {
  #cursor,
  #cursor-ring {
    display: none !important;
  }

  /* Reduce animation intensity on mobile */
  .pulse {
    animation-duration: 2s;
  }

  .bounce {
    animation-duration: 0.8s;
  }

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