/* ==========================================================================
   ANIMATIONS — Spices of Kerala
   Marquee scroll, fade-in-up, scroll reveal, hover lift, image zoom
   Reduced-motion support included
   ========================================================================== */

/* --------------------------------------------------------------------------
   MARQUEE SCROLL
   Used by .marquee-track in components.css
   -------------------------------------------------------------------------- */
@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* --------------------------------------------------------------------------
   FADE IN UP
   -------------------------------------------------------------------------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --------------------------------------------------------------------------
   FADE IN
   -------------------------------------------------------------------------- */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* --------------------------------------------------------------------------
   FADE OUT
   -------------------------------------------------------------------------- */
@keyframes fadeOut {
  from { opacity: 1; }
  to   { opacity: 0; }
}

/* --------------------------------------------------------------------------
   SLIDE IN FROM LEFT (mobile menu)
   -------------------------------------------------------------------------- */
@keyframes slideInLeft {
  from { transform: translateX(-100%); }
  to   { transform: translateX(0); }
}

/* --------------------------------------------------------------------------
   SCALE UP (modal, toast)
   -------------------------------------------------------------------------- */
@keyframes scaleUp {
  from {
    opacity: 0;
    transform: scale(0.94) translateY(8px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* --------------------------------------------------------------------------
   SHIMMER (skeleton loading)
   -------------------------------------------------------------------------- */
@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position:  200% center; }
}

/* --------------------------------------------------------------------------
   HEARTBEAT (cart badge bump)
   -------------------------------------------------------------------------- */
@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  20%       { transform: scale(1.2); }
  40%       { transform: scale(1); }
  60%       { transform: scale(1.15); }
  80%       { transform: scale(1); }
}

/* --------------------------------------------------------------------------
   SCROLL REVEAL — .reveal class
   JS toggles .revealed to trigger transition
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s ease,
              transform 0.55s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: none;
}

/* Stagger helpers for reveal children */
.reveal-stagger > *:nth-child(1) { transition-delay: 0ms; }
.reveal-stagger > *:nth-child(2) { transition-delay: 80ms; }
.reveal-stagger > *:nth-child(3) { transition-delay: 160ms; }
.reveal-stagger > *:nth-child(4) { transition-delay: 240ms; }
.reveal-stagger > *:nth-child(5) { transition-delay: 320ms; }
.reveal-stagger > *:nth-child(6) { transition-delay: 400ms; }
.reveal-stagger > *:nth-child(7) { transition-delay: 480ms; }
.reveal-stagger > *:nth-child(8) { transition-delay: 560ms; }

/* --------------------------------------------------------------------------
   HOVER LIFT — utility class
   Subtle translateY and shadow transition
   -------------------------------------------------------------------------- */
.hover-lift {
  transition: transform 0.25s ease,
              box-shadow 0.25s ease;
}

.hover-lift:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(77, 3, 50, 0.10);
}

/* --------------------------------------------------------------------------
   IMAGE HOVER ZOOM — applied via product-card__image
   Referenced in product-card.css via .product-card:hover .product-card__image
   -------------------------------------------------------------------------- */
.zoom-on-hover {
  transition: transform 0.25s ease;
}

.zoom-on-hover:hover {
  transform: scale(1.015);
}

/* --------------------------------------------------------------------------
   ANIMATION UTILITY CLASSES
   -------------------------------------------------------------------------- */
.animate-fade-in    { animation: fadeIn    0.3s ease both; }
.animate-fade-up    { animation: fadeInUp  0.5s ease both; }
.animate-scale-up   { animation: scaleUp   0.4s ease both; }
.animate-heartbeat  { animation: heartbeat 0.5s ease both; }
.animate-shimmer {
  background: linear-gradient(
    90deg,
    var(--color-surface) 25%,
    var(--color-bg)      50%,
    var(--color-surface) 75%
  );
  background-size: 200% auto;
  animation: shimmer 1.5s linear infinite;
}

/* Delay utilities */
.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-400 { animation-delay: 400ms; }
.delay-500 { animation-delay: 500ms; }
.delay-700 { animation-delay: 700ms; }

/* --------------------------------------------------------------------------
   SKELETON LOADING
   -------------------------------------------------------------------------- */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-surface) 25%,
    var(--color-bg)      50%,
    var(--color-surface) 75%
  );
  background-size: 200% auto;
  animation: shimmer 1.6s linear infinite;
  border-radius: 2px;
}

/* --------------------------------------------------------------------------
   PREFERS-REDUCED-MOTION
   Disable all animations and transitions for accessibility
   -------------------------------------------------------------------------- */
@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;
  }

  .reveal,
  .reveal.revealed {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .marquee-bar__track,
  .image-marquee__track {
    animation: none !important;
  }

  .hover-lift:hover {
    transform: none !important;
  }
}