/* CaloriesSnap - Animations */

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

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

@keyframes slideUp {
  from {
    transform: translateY(100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes slideDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes slideInLeft {
  from {
    transform: translateX(-100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

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

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.8;
  }
}

@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 flicker {
  0%, 100% {
    opacity: 1;
    filter: brightness(1);
  }
  50% {
    opacity: 0.8;
    filter: brightness(1.2);
  }
}

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

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

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

@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 5px rgba(102, 126, 234, 0.5);
  }
  50% {
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.8), 0 0 30px rgba(102, 126, 234, 0.6);
  }
}

@keyframes ripple {
  0% {
    transform: scale(0);
    opacity: 1;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}

/* ===== ANIMATION CLASSES ===== */
.fade-in {
  animation: fadeIn var(--transition-base);
}

.fade-out {
  animation: fadeOut var(--transition-base);
}

.slide-up {
  animation: slideUp var(--transition-base);
}

.slide-down {
  animation: slideDown var(--transition-base);
}

.slide-in-right {
  animation: slideInRight var(--transition-base);
}

.slide-in-left {
  animation: slideInLeft var(--transition-base);
}

.bounce {
  animation: bounce 2s infinite;
}

.pulse {
  animation: pulse 2s infinite;
}

.shake {
  animation: shake 0.5s;
}

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

.flicker {
  animation: flicker 2s infinite;
}

.scale-in {
  animation: scaleIn var(--transition-base);
}

.scale-out {
  animation: scaleOut var(--transition-base);
}

.wiggle {
  animation: wiggle 0.5s;
}

.glow {
  animation: glow 2s infinite;
}

/* ===== CONFETTI ANIMATION ===== */
.confetti {
  position: fixed;
  width: 10px;
  height: 10px;
  background: #667eea;
  animation: confetti-fall 3s linear forwards;
  z-index: 10000;
}

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

/* ===== BADGE UNLOCK ANIMATION ===== */
.badge-unlock {
  animation: badge-unlock-anim 1s ease-out;
}

@keyframes badge-unlock-anim {
  0% {
    transform: scale(0) rotate(-180deg);
    opacity: 0;
  }
  50% {
    transform: scale(1.2) rotate(10deg);
  }
  100% {
    transform: scale(1) rotate(0deg);
    opacity: 1;
  }
}

/* ===== SPARKLE EFFECT ===== */
.sparkle {
  position: relative;
  overflow: visible;
}

.sparkle::before,
.sparkle::after {
  content: '✨';
  position: absolute;
  font-size: 20px;
  animation: sparkle-anim 1s ease-out;
  pointer-events: none;
}

.sparkle::before {
  top: -10px;
  left: -10px;
}

.sparkle::after {
  bottom: -10px;
  right: -10px;
  animation-delay: 0.3s;
}

@keyframes sparkle-anim {
  0% {
    opacity: 0;
    transform: scale(0) rotate(0deg);
  }
  50% {
    opacity: 1;
    transform: scale(1.5) rotate(180deg);
  }
  100% {
    opacity: 0;
    transform: scale(0) rotate(360deg);
  }
}

/* ===== CELEBRATION ANIMATION ===== */
.celebration {
  animation: celebration-anim 0.8s ease-out;
}

@keyframes celebration-anim {
  0% {
    transform: scale(1);
  }
  25% {
    transform: scale(1.1) rotate(-5deg);
  }
  50% {
    transform: scale(1.15) rotate(5deg);
  }
  75% {
    transform: scale(1.1) rotate(-5deg);
  }
  100% {
    transform: scale(1) rotate(0deg);
  }
}

/* ===== LOADING SPINNER ===== */
.loading-spinner {
  border: 4px solid var(--border-color);
  border-top: 4px solid var(--primary);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
}

/* ===== PROGRESS RING ANIMATION ===== */
.ring-progress-animate {
  animation: ring-progress 1.5s ease-out;
}

@keyframes ring-progress {
  from {
    stroke-dashoffset: 502.65;
  }
}

/* ===== HEARTBEAT ===== */
.heartbeat {
  animation: heartbeat 1.5s ease-in-out infinite;
}

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

/* ===== TAP FEEDBACK ===== */
.tap-feedback {
  position: relative;
  overflow: hidden;
}

.tap-feedback::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(102, 126, 234, 0.3);
  transform: translate(-50%, -50%);
  animation: ripple 0.6s ease-out;
}

/* ===== SUCCESS CHECKMARK ===== */
.success-checkmark {
  width: 80px;
  height: 80px;
  margin: 0 auto;
}

.success-checkmark .check-icon {
  width: 80px;
  height: 80px;
  position: relative;
  border-radius: 50%;
  box-sizing: content-box;
  border: 4px solid var(--success);
}

.success-checkmark .check-icon::before {
  top: 3px;
  left: -2px;
  width: 30px;
  transform-origin: 100% 50%;
  border-radius: 100px 0 0 100px;
}

.success-checkmark .check-icon::after {
  top: 0;
  left: 30px;
  width: 60px;
  transform-origin: 0 50%;
  border-radius: 0 100px 100px 0;
  animation: rotate-circle 4.25s ease-in;
}

.success-checkmark .check-icon::before,
.success-checkmark .check-icon::after {
  content: '';
  height: 100px;
  position: absolute;
  background: var(--bg-primary);
  transform: rotate(-45deg);
}

.success-checkmark .check-icon .icon-line {
  height: 5px;
  background-color: var(--success);
  display: block;
  border-radius: 2px;
  position: absolute;
  z-index: 10;
}

.success-checkmark .check-icon .icon-line.line-tip {
  top: 46px;
  left: 14px;
  width: 25px;
  transform: rotate(45deg);
  animation: icon-line-tip 0.75s;
}

.success-checkmark .check-icon .icon-line.line-long {
  top: 38px;
  right: 8px;
  width: 47px;
  transform: rotate(-45deg);
  animation: icon-line-long 0.75s;
}

@keyframes rotate-circle {
  0% {
    transform: rotate(-45deg);
  }
  5% {
    transform: rotate(-45deg);
  }
  12% {
    transform: rotate(-405deg);
  }
  100% {
    transform: rotate(-405deg);
  }
}

@keyframes icon-line-tip {
  0% {
    width: 0;
    left: 1px;
    top: 19px;
  }
  54% {
    width: 0;
    left: 1px;
    top: 19px;
  }
  70% {
    width: 50px;
    left: -8px;
    top: 37px;
  }
  84% {
    width: 17px;
    left: 21px;
    top: 48px;
  }
  100% {
    width: 25px;
    left: 14px;
    top: 45px;
  }
}

@keyframes icon-line-long {
  0% {
    width: 0;
    right: 46px;
    top: 54px;
  }
  65% {
    width: 0;
    right: 46px;
    top: 54px;
  }
  84% {
    width: 55px;
    right: 0px;
    top: 35px;
  }
  100% {
    width: 47px;
    right: 8px;
    top: 38px;
  }
}

/* ===== FLOATING ANIMATION ===== */
.floating {
  animation: floating 3s ease-in-out infinite;
}

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

/* ===== TEXT SHIMMER ===== */
.shimmer {
  background: linear-gradient(90deg, var(--text-primary) 0%, var(--primary) 50%, var(--text-primary) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 2s linear infinite;
}

@keyframes shimmer {
  to {
    background-position: 200% center;
  }
}

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