/* ============================================
   GiftCard HN — Animations
   ============================================ */

/* Fade In Up (scroll reveal) */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  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(-40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

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

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

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

@keyframes floatSlow {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  33% { transform: translateY(-15px) rotate(2deg); }
  66% { transform: translateY(-8px) rotate(-1deg); }
}

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

/* Glow Pulse */
@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 20px rgba(59, 130, 246, 0.3); }
  50% { box-shadow: 0 0 40px rgba(59, 130, 246, 0.5), 0 0 60px rgba(59, 130, 246, 0.2); }
}

@keyframes glowPulseGold {
  0%, 100% { box-shadow: 0 0 20px rgba(245, 158, 11, 0.3); }
  50% { box-shadow: 0 0 40px rgba(245, 158, 11, 0.5), 0 0 60px rgba(245, 158, 11, 0.2); }
}

/* Shimmer Effect */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

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

/* Spin Slow (for loading) */
@keyframes spinSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

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

/* Orb float */
@keyframes orbFloat1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(100px, -50px) scale(1.1); }
  50% { transform: translate(50px, -100px) scale(0.9); }
  75% { transform: translate(-30px, -60px) scale(1.05); }
}

@keyframes orbFloat2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(-80px, 40px) scale(0.95); }
  50% { transform: translate(-40px, 80px) scale(1.1); }
  75% { transform: translate(60px, 30px) scale(1); }
}

@keyframes orbFloat3 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(70px, 60px) scale(1.05); }
  66% { transform: translate(-50px, 90px) scale(0.95); }
}

/* Slide in modal */
@keyframes slideInFromBottom {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

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

/* Backdrop fade */
@keyframes backdropFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

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

/* Counter count-up */
@keyframes countPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

/* Card 3D Flip */
@keyframes flipToBack {
  from { transform: rotateY(0deg); }
  to { transform: rotateY(180deg); }
}

@keyframes flipToFront {
  from { transform: rotateY(180deg); }
  to { transform: rotateY(0deg); }
}

/* Typing indicator */
@keyframes typingDot {
  0%, 80%, 100% { transform: scale(0); }
  40% { transform: scale(1); }
}

/* Success checkmark */
@keyframes checkmark {
  0% { stroke-dashoffset: 50; }
  100% { stroke-dashoffset: 0; }
}

@keyframes checkmarkCircle {
  0% { stroke-dashoffset: 166; }
  100% { stroke-dashoffset: 0; }
}

/* Shake (error) */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-4px); }
  20%, 40%, 60%, 80% { transform: translateX(4px); }
}

/* ============================================
   Animation Utility Classes
   ============================================ */

/* Scroll reveal - elements start hidden */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-scale.revealed {
  opacity: 1;
  transform: scale(1);
}

/* Stagger delays for groups */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }
.stagger-7 { transition-delay: 0.7s; }
.stagger-8 { transition-delay: 0.8s; }

/* Continuous animations */
.animate-float {
  animation: float 6s ease-in-out infinite;
}

.animate-float-slow {
  animation: floatSlow 8s ease-in-out infinite;
}

.animate-float-reverse {
  animation: floatReverse 7s ease-in-out infinite;
}

.animate-glow {
  animation: glowPulse 3s ease-in-out infinite;
}

.animate-glow-gold {
  animation: glowPulseGold 3s ease-in-out infinite;
}

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

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

.animate-shimmer {
  background: linear-gradient(90deg, transparent 25%, rgba(255,255,255,0.1) 50%, transparent 75%);
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
}

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

/* Hover scale */
.hover-scale {
  transition: transform var(--transition-base);
}
.hover-scale:hover {
  transform: scale(1.03);
}

/* Hover lift */
.hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}