/* Animation System - Cuttack Shanti Committee */
/* Smooth animations and transitions with cultural flair */

/* ===== KEYFRAME 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);
  }
}

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

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

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

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

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

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

@keyframes bounce {
  0%, 20%, 53%, 80%, 100% {
    animation-timing-function: cubic-bezier(0.215, 0.610, 0.355, 1.000);
    transform: translate3d(0, 0, 0);
  }
  40%, 43% {
    animation-timing-function: cubic-bezier(0.755, 0.050, 0.855, 0.060);
    transform: translate3d(0, -30px, 0);
  }
  70% {
    animation-timing-function: cubic-bezier(0.755, 0.050, 0.855, 0.060);
    transform: translate3d(0, -15px, 0);
  }
  90% {
    transform: translate3d(0, -4px, 0);
  }
}

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

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

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

@keyframes heartbeat {
  0% {
    transform: scale(1);
  }
  14% {
    transform: scale(1.3);
  }
  28% {
    transform: scale(1);
  }
  42% {
    transform: scale(1.3);
  }
  70% {
    transform: scale(1);
  }
}

/* ===== CULTURAL FESTIVAL ANIMATIONS ===== */
@keyframes festivalGlow {
  0%, 100% {
    text-shadow: 0 0 5px var(--accent-gold), 0 0 10px var(--accent-gold), 0 0 15px var(--accent-gold);
  }
  50% {
    text-shadow: 0 0 10px var(--primary-yellow), 0 0 20px var(--primary-yellow), 0 0 30px var(--primary-yellow);
  }
}

@keyframes divineBlink {
  0%, 50%, 100% {
    opacity: 1;
  }
  25%, 75% {
    opacity: 0.7;
  }
}

@keyframes floatingPetals {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateY(-100vh) rotate(360deg);
    opacity: 0;
  }
}

@keyframes welcomeFade {
  0% {
    opacity: 0;
    transform: scale(0.8);
  }
  20% {
    opacity: 1;
    transform: scale(1);
  }
  80% {
    opacity: 1;
    transform: scale(1);
  }
  100% {
    opacity: 0;
    transform: scale(1.1);
  }
}

/* ===== ANIMATION UTILITY CLASSES ===== */
.animate-fade-in {
  animation: fadeIn var(--duration-normal) var(--ease-out) both;
}

.animate-fade-in-up {
  animation: fadeInUp var(--duration-normal) var(--ease-out) both;
}

.animate-fade-in-down {
  animation: fadeInDown var(--duration-normal) var(--ease-out) both;
}

.animate-fade-in-left {
  animation: fadeInLeft var(--duration-normal) var(--ease-out) both;
}

.animate-fade-in-right {
  animation: fadeInRight var(--duration-normal) var(--ease-out) both;
}

.animate-slide-in-up {
  animation: slideInUp var(--duration-slow) var(--ease-out) both;
}

.animate-slide-in-down {
  animation: slideInDown var(--duration-slow) var(--ease-out) both;
}

.animate-slide-in-left {
  animation: slideInLeft var(--duration-slow) var(--ease-out) both;
}

.animate-slide-in-right {
  animation: slideInRight var(--duration-slow) var(--ease-out) both;
}

.animate-zoom-in {
  animation: zoomIn var(--duration-normal) var(--ease-out) both;
}

.animate-zoom-out {
  animation: zoomOut var(--duration-normal) var(--ease-out) both;
}

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

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

.animate-shake {
  animation: shake 0.5s ease-in-out;
}

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

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

/* ===== FESTIVAL-THEMED ANIMATION CLASSES ===== */
.animate-festival-glow {
  animation: festivalGlow 2s ease-in-out infinite;
}

.animate-divine-blink {
  animation: divineBlink 3s ease-in-out infinite;
}

.animate-floating-petals {
  animation: floatingPetals 6s linear infinite;
}

.animate-welcome-fade {
  animation: welcomeFade 3s ease-in-out both;
}

/* ===== ANIMATION DELAYS ===== */
.animate-delay-100 {
  animation-delay: 100ms;
}

.animate-delay-200 {
  animation-delay: 200ms;
}

.animate-delay-300 {
  animation-delay: 300ms;
}

.animate-delay-500 {
  animation-delay: 500ms;
}

.animate-delay-700 {
  animation-delay: 700ms;
}

.animate-delay-1000 {
  animation-delay: 1000ms;
}

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

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

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

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

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

.hover-shrink:hover {
  transform: scale(0.95);
}

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

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

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

.hover-tilt:hover {
  transform: rotate(-2deg);
}

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

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

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

.hover-text-glow:hover {
  text-shadow: 0 0 10px var(--accent-gold);
}

/* ===== LOADING ANIMATIONS ===== */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--neutral-light-gray);
  border-radius: 50%;
  border-top-color: var(--primary-red);
  animation: spin 1s ease-in-out infinite;
}

.loading-dots::after {
  content: '';
  animation: loadingDots 1.5s infinite;
}

@keyframes loadingDots {
  0%, 20% {
    content: '';
  }
  40% {
    content: '.';
  }
  60% {
    content: '..';
  }
  80%, 100% {
    content: '...';
  }
}

/* ===== TRANSITION UTILITIES ===== */
.transition {
  transition: var(--transition-all);
}

.transition-none {
  transition: none;
}

.transition-fast {
  transition: var(--transition-fast);
}

.transition-normal {
  transition: var(--transition-normal);
}

.transition-slow {
  transition: var(--transition-slow);
}

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

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

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

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

/* ===== SCROLL ANIMATIONS ===== */
.scroll-fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

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

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

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

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

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

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

/* ===== PARALLAX EFFECT ===== */
.parallax {
  transform: translateZ(0);
  transition: transform 0.1s ease-out;
}

/* ===== ACCESSIBILITY CONSIDERATIONS ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .scroll-fade-in,
  .scroll-slide-left,
  .scroll-slide-right,
  .scroll-zoom-in {
    opacity: 1;
    transform: none;
    transition: none;
  }
  
  .hover-lift:hover,
  .hover-grow:hover,
  .hover-shrink:hover,
  .hover-rotate:hover,
  .hover-tilt:hover {
    transform: none;
  }
}

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

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

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

/* Reset will-change after animation */
.animation-complete {
  will-change: auto;
}

/* ===== STAGGER ANIMATIONS ===== */
.stagger-children > * {
  animation-delay: calc(var(--stagger-delay, 0.1s) * var(--i, 0));
}

.stagger-children > *:nth-child(1) { --i: 1; }
.stagger-children > *:nth-child(2) { --i: 2; }
.stagger-children > *:nth-child(3) { --i: 3; }
.stagger-children > *:nth-child(4) { --i: 4; }
.stagger-children > *:nth-child(5) { --i: 5; }
.stagger-children > *:nth-child(6) { --i: 6; }
.stagger-children > *:nth-child(7) { --i: 7; }
.stagger-children > *:nth-child(8) { --i: 8; }

/* ===== ENTRANCE ANIMATIONS FOR PAGE SECTIONS ===== */
.section-entrance {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.section-entrance.animate {
  opacity: 1;
  transform: translateY(0);
}

/* ===== BUTTON ANIMATION ENHANCEMENTS ===== */
.btn-ripple {
  position: relative;
  overflow: hidden;
}

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

.btn-ripple:hover::before {
  width: 300px;
  height: 300px;
}