/* Threads of Mercy - Animations & Micro-interactions */

/* ===== CSS VARIABLES FOR ANIMATIONS ===== */
/* Note: --transition-fast/normal/slow/medium and --ease-out-expo are
   defined in main.css (brand design system). Only additive vars here. */
:root {
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

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

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

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

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

/* ===== HERO ANIMATIONS ===== */
@keyframes heroTextReveal {
  from {
    opacity: 0;
    transform: translateY(40px);
    filter: blur(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}

@keyframes heroImageZoom {
  from {
    transform: scale(1.1);
  }
  to {
    transform: scale(1);
  }
}

.hero-animate-bg {
  animation: heroImageZoom 8s var(--ease-out-expo) forwards;
}

.hero-animate-title {
  animation: heroTextReveal 0.8s var(--ease-out-expo) 0.2s forwards;
  opacity: 0;
}

.hero-animate-subtitle {
  animation: heroTextReveal 0.8s var(--ease-out-expo) 0.4s forwards;
  opacity: 0;
}

.hero-animate-buttons {
  animation: heroTextReveal 0.8s var(--ease-out-expo) 0.6s forwards;
  opacity: 0;
}

/* ===== SCROLL REVEAL ANIMATIONS ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow) var(--ease-out-expo),
              transform var(--transition-slow) var(--ease-out-expo);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity var(--transition-slow) var(--ease-out-expo),
              transform var(--transition-slow) var(--ease-out-expo);
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity var(--transition-slow) var(--ease-out-expo),
              transform var(--transition-slow) var(--ease-out-expo);
}

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

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity var(--transition-slow) var(--ease-out-expo),
              transform var(--transition-slow) var(--ease-out-expo);
}

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

/* Staggered animations for lists/grids */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-slow) var(--ease-out-expo),
              transform var(--transition-slow) var(--ease-out-expo);
}

.reveal-stagger.revealed > *:nth-child(1) { transition-delay: 0ms; }
.reveal-stagger.revealed > *:nth-child(2) { transition-delay: 100ms; }
.reveal-stagger.revealed > *:nth-child(3) { transition-delay: 200ms; }
.reveal-stagger.revealed > *:nth-child(4) { transition-delay: 300ms; }
.reveal-stagger.revealed > *:nth-child(5) { transition-delay: 400ms; }
.reveal-stagger.revealed > *:nth-child(6) { transition-delay: 500ms; }
.reveal-stagger.revealed > *:nth-child(7) { transition-delay: 600ms; }
.reveal-stagger.revealed > *:nth-child(8) { transition-delay: 700ms; }

.reveal-stagger.revealed > * {
  opacity: 1;
  transform: translateY(0);
}

/* ===== BUTTON ANIMATIONS ===== */
.btn-animated {
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-fast) var(--ease-spring),
              box-shadow var(--transition-fast) var(--ease-in-out);
}

.btn-animated:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-animated:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Ripple effect */
.btn-ripple {
  position: relative;
  overflow: hidden;
}

.btn-ripple::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 60%);
  transform: scale(0);
  opacity: 0;
  transition: transform 0.5s, opacity 0.3s;
}

.btn-ripple:active::after {
  transform: scale(2);
  opacity: 1;
  transition: transform 0s, opacity 0s;
}

/* ===== CARD HOVER ANIMATIONS ===== */
.card-hover {
  transition: transform var(--transition-normal) var(--ease-out-expo),
              box-shadow var(--transition-normal) var(--ease-out-expo),
              border-color var(--transition-normal) var(--ease-in-out);
}

.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px -8px rgba(0, 0, 0, 0.12);
}

.card-hover-lift {
  transition: transform var(--transition-normal) var(--ease-spring),
              box-shadow var(--transition-normal) var(--ease-out-expo);
}

.card-hover-lift:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.15);
}

/* ===== PRODUCT CARD ANIMATIONS ===== */
.product-card-animated {
  transition: transform var(--transition-normal) var(--ease-out-expo),
              box-shadow var(--transition-normal) var(--ease-out-expo);
}

.product-card-animated:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 32px -8px rgba(0, 0, 0, 0.1);
}

.product-card-animated .product-image img {
  transition: transform 0.5s var(--ease-out-expo);
}

.product-card-animated:hover .product-image img {
  transform: scale(1.08);
}

/* Quick action overlay */
.product-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  opacity: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: opacity var(--transition-normal) var(--ease-in-out);
}

.product-card-animated:hover .product-overlay {
  opacity: 1;
}

.product-overlay button {
  transform: translateY(10px);
  opacity: 0;
  transition: transform var(--transition-normal) var(--ease-spring),
              opacity var(--transition-fast);
}

.product-card-animated:hover .product-overlay button {
  transform: translateY(0);
  opacity: 1;
}

.product-card-animated:hover .product-overlay button:nth-child(2) {
  transition-delay: 50ms;
}

/* ===== IMAGE ANIMATIONS ===== */
.img-zoom {
  overflow: hidden;
}

.img-zoom img {
  transition: transform var(--transition-slow) var(--ease-out-expo);
}

.img-zoom:hover img {
  transform: scale(1.1);
}

/* Image reveal on load */
.img-reveal {
  opacity: 0;
  animation: fadeIn 0.5s var(--ease-out-expo) forwards;
}

/* ===== NAVIGATION ANIMATIONS ===== */
.nav-link-animated {
  position: relative;
}

.nav-link-animated::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: hsl(var(--primary));
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-normal) var(--ease-out-expo);
}

.nav-link-animated:hover::after,
.nav-link-animated.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Mobile menu animation */
.mobile-menu-animated {
  transform: translateY(-10px);
  opacity: 0;
  transition: transform var(--transition-normal) var(--ease-out-expo),
              opacity var(--transition-normal) var(--ease-in-out);
}

.mobile-menu-animated.open {
  transform: translateY(0);
  opacity: 1;
}

/* ===== FORM ANIMATIONS ===== */
.input-animated {
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast),
              transform var(--transition-fast);
}

.input-animated:focus {
  transform: translateY(-1px);
}

/* Label float animation */
.input-group-float {
  position: relative;
}

.input-group-float label {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  transition: all var(--transition-fast) var(--ease-out-expo);
  pointer-events: none;
  color: hsl(var(--muted-foreground));
}

.input-group-float input:focus ~ label,
.input-group-float input:not(:placeholder-shown) ~ label {
  top: 0;
  transform: translateY(-50%) scale(0.85);
  background: hsl(var(--background));
  padding: 0 0.25rem;
  color: hsl(var(--primary));
}

/* ===== LOADING ANIMATIONS ===== */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

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

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

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

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

.skeleton-animated {
  background: linear-gradient(90deg, 
    hsl(var(--muted)) 25%, 
    hsl(var(--muted) / 0.6) 50%, 
    hsl(var(--muted)) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

/* Loading dots */
.loading-dots {
  display: inline-flex;
  gap: 4px;
}

.loading-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: hsl(var(--primary));
  animation: bounce 0.6s infinite;
}

.loading-dots span:nth-child(2) { animation-delay: 0.1s; }
.loading-dots span:nth-child(3) { animation-delay: 0.2s; }

/* ===== TOAST/NOTIFICATION ANIMATIONS ===== */
@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

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

.toast-animated {
  animation: slideInRight 0.3s var(--ease-out-expo) forwards;
}

.toast-animated.hiding {
  animation: slideOutRight 0.3s var(--ease-in-out) forwards;
}

/* ===== MODAL/DIALOG ANIMATIONS ===== */
@keyframes modalBackdropIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes modalContentIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-backdrop-animated {
  animation: modalBackdropIn 0.2s var(--ease-in-out) forwards;
}

.modal-content-animated {
  animation: modalContentIn 0.3s var(--ease-out-expo) forwards;
}

/* ===== LIGHTBOX STYLES ===== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
}

.lightbox.open {
  display: flex;
}

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  animation: modalBackdropIn 0.3s var(--ease-in-out) forwards;
}

.lightbox-content {
  position: relative;
  z-index: 1;
  max-width: 90vw;
  max-height: 90vh;
  animation: modalContentIn 0.3s var(--ease-out-expo) forwards;
}

.lightbox-image {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 0.5rem;
  cursor: zoom-in;
}

.lightbox-image.zoomed {
  cursor: zoom-out;
  transform: scale(1.5);
  transition: transform 0.3s var(--ease-out-expo);
}

.lightbox-close {
  position: absolute;
  top: -40px;
  right: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-50%) scale(1.1);
}

.lightbox-prev { left: -70px; }
.lightbox-next { right: -70px; }

.lightbox-thumbnails {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
  justify-content: center;
}

.lightbox-thumb {
  width: 60px;
  height: 60px;
  border-radius: 0.25rem;
  overflow: hidden;
  opacity: 0.5;
  cursor: pointer;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  border: 2px solid transparent;
}

.lightbox-thumb:hover,
.lightbox-thumb.active {
  opacity: 1;
  border-color: white;
}

.lightbox-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== QUANTITY STEPPER ANIMATION ===== */
.qty-btn {
  transition: background var(--transition-fast),
              transform var(--transition-fast) var(--ease-spring);
}

.qty-btn:active {
  transform: scale(0.9);
}

.qty-display {
  transition: transform var(--transition-fast);
}

.qty-display.bump-up {
  animation: bumpUp 0.2s var(--ease-spring);
}

.qty-display.bump-down {
  animation: bumpDown 0.2s var(--ease-spring);
}

@keyframes bumpUp {
  0% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
  100% { transform: translateY(0); }
}

@keyframes bumpDown {
  0% { transform: translateY(0); }
  50% { transform: translateY(5px); }
  100% { transform: translateY(0); }
}

/* ===== CART ANIMATIONS ===== */
@keyframes addToCartPop {
  0% { transform: scale(1); }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

.cart-badge-animated {
  transition: transform var(--transition-fast) var(--ease-spring);
}

.cart-badge-animated.added {
  animation: addToCartPop 0.3s var(--ease-spring);
}

/* ===== WISHLIST HEART ANIMATION ===== */
@keyframes heartBeat {
  0% { transform: scale(1); }
  25% { transform: scale(1.1); }
  50% { transform: scale(1); }
  75% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

.heart-animated {
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.heart-animated.active {
  color: #ef4444;
  animation: heartBeat 0.4s var(--ease-spring);
}

/* ===== ACCORDION/COLLAPSIBLE ANIMATIONS ===== */
.accordion-content {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height var(--transition-normal) var(--ease-out-expo),
              opacity var(--transition-normal) var(--ease-in-out);
}

.accordion-content.open {
  max-height: 500px;
  opacity: 1;
}

.accordion-icon {
  transition: transform var(--transition-normal) var(--ease-out-expo);
}

.accordion-trigger[aria-expanded="true"] .accordion-icon {
  transform: rotate(180deg);
}

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

/* Disable complex animations on mobile for performance */
@media (max-width: 768px) {
  .product-card-animated:hover {
    transform: none;
  }
  
  .card-hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px -4px rgba(0, 0, 0, 0.1);
  }
}

/* ===== PROGRESS BAR ANIMATION ===== */
@keyframes progressGrow {
  from { width: 0%; }
  to { width: var(--progress, 0%); }
}

.progress-animated {
  animation: progressGrow 1s var(--ease-out-expo) forwards;
}

/* ===== CHECKOUT STEP ANIMATION ===== */
.checkout-step {
  opacity: 0.5;
  transform: scale(0.95);
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.checkout-step.active {
  opacity: 1;
  transform: scale(1);
}

.checkout-step.completed {
  opacity: 1;
}

/* ===== ICON ANIMATIONS ===== */
.icon-bounce:hover {
  animation: bounce 0.5s var(--ease-spring);
}

.icon-spin:hover {
  animation: spin 0.5s var(--ease-out-expo);
}

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