/**
 * TheTrueTomato AI Concierge - Animation Library
 * Smooth, performant animations optimized for mobile
 */

/* ============================================
   ENTRANCE 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 fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

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

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

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

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

/* ============================================
   MICRO-INTERACTIONS
   ============================================ */

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

@keyframes wiggle {
  0%, 100% {
    transform: rotate(0deg);
  }
  25% {
    transform: rotate(-5deg);
  }
  75% {
    transform: rotate(5deg);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.9;
  }
}

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

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

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

@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 5px rgba(193, 41, 46, 0.5);
  }
  50% {
    box-shadow: 0 0 20px rgba(193, 41, 46, 0.8);
  }
}

@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-5px);
  }
  75% {
    transform: translateX(5px);
  }
}

@keyframes heartbeat {
  0%, 100% {
    transform: scale(1);
  }
  10%, 30% {
    transform: scale(1.1);
  }
  20%, 40% {
    transform: scale(1);
  }
}

/* ============================================
   LOADING STATES
   ============================================ */

@keyframes skeletonLoading {
  0% {
    background-position: -200px 0;
  }
  100% {
    background-position: calc(200px + 100%) 0;
  }
}

@keyframes typingDots {
  0%, 60%, 100% {
    transform: translateY(0);
  }
  30% {
    transform: translateY(-10px);
  }
}

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

@keyframes loadSlide {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(200%);
  }
}

/* ============================================
   SUCCESS ANIMATIONS
   ============================================ */

@keyframes checkmarkDraw {
  0% {
    stroke-dashoffset: 100;
  }
  100% {
    stroke-dashoffset: 0;
  }
}

@keyframes confetti {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateY(-100vh) rotate(720deg);
    opacity: 0;
  }
}

@keyframes celebrationBurst {
  0% {
    transform: scale(0);
    opacity: 1;
  }
  50% {
    transform: scale(1.2);
    opacity: 0.8;
  }
  100% {
    transform: scale(1);
    opacity: 0;
  }
}

@keyframes successPop {
  0% {
    transform: scale(0);
    opacity: 0;
  }
  50% {
    transform: scale(1.2);
    opacity: 1;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

/* ============================================
   MESSAGE & CHAT ANIMATIONS
   ============================================ */

@keyframes messageSlideIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes msgPop {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   INGREDIENT-SPECIFIC ANIMATIONS
   ============================================ */

@keyframes fillPurityRing {
  from {
    stroke-dashoffset: 264;
  }
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes fillBar {
  from {
    width: 0;
  }
  to {
    width: var(--target-width, 100%);
  }
}

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

/* ============================================
   UTILITY ANIMATION CLASSES
   ============================================ */

/* Duration Classes */
.animate-fast {
  animation-duration: 0.2s;
}

.animate-normal {
  animation-duration: 0.4s;
}

.animate-slow {
  animation-duration: 0.6s;
}

.animate-slower {
  animation-duration: 1s;
}

/* Easing Classes */
.ease-bounce {
  animation-timing-function: cubic-bezier(0.34, 1.56, 0.64, 1);
}

.ease-smooth {
  animation-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

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

.ease-spring {
  animation-timing-function: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* 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;
}

/* Fill Mode Classes */
.fill-forwards {
  animation-fill-mode: forwards;
}

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

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

/* ============================================
   READY-TO-USE ANIMATION CLASSES
   ============================================ */

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

.fade-in-up {
  animation: fadeInUp 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.fade-in-scale {
  animation: fadeInScale 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.slide-in-bottom {
  animation: slideInFromBottom 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.bounce-in {
  animation: bounce 0.6s ease-in-out;
}

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

.float-gentle {
  animation: float 2s ease-in-out infinite;
}

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

.shimmer-effect {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.5) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
}

/* ============================================
   STAGGER ANIMATIONS (for lists)
   ============================================ */

.stagger-children > * {
  animation: fadeInUp 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) backwards;
}

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

/* ============================================
   PERFORMANCE OPTIMIZATIONS
   ============================================ */

/* GPU Acceleration for smooth animations */
.animate-gpu {
  will-change: transform, opacity;
  transform: translateZ(0);
  backface-visibility: hidden;
  perspective: 1000px;
}

/* Skeleton Loading State */
.skeleton {
  background: linear-gradient(
    90deg,
    #f0f0f0 0%,
    #e0e0e0 50%,
    #f0f0f0 100%
  );
  background-size: 200% 100%;
  animation: skeletonLoading 1.5s infinite;
  border-radius: var(--radius-sm);
}

/* Typing Indicator */
.typing-indicator {
  display: flex;
  gap: 4px;
  align-items: center;
}

.typing-indicator span {
  width: 8px;
  height: 8px;
  background: var(--text-secondary);
  border-radius: 50%;
  animation: typingDots 1.4s infinite;
}

.typing-indicator span:nth-child(2) {
  animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
  animation-delay: 0.4s;
}

/* ============================================
   SCROLL-DRIVEN ANIMATIONS (Modern CSS)
   ============================================ */

@supports (animation-timeline: scroll()) {
  .scroll-fade {
    animation: fadeIn linear;
    animation-timeline: scroll();
    animation-range: entry 0% cover 30%;
  }
  
  .scroll-scale {
    animation: fadeInScale linear;
    animation-timeline: scroll();
    animation-range: entry 0% cover 40%;
  }
}

/* ============================================
   VIEW TRANSITIONS API (Modern CSS)
   ============================================ */

@supports (view-transition-name: auto) {
  ::view-transition-old(root),
  ::view-transition-new(root) {
    animation-duration: 0.3s;
  }
}

/* ============================================
   REDUCED MOTION SUPPORT
   ============================================ */

@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;
  }
  
  .skeleton {
    animation: none;
    background: #f0f0f0;
  }
}