/* ==========================================================================
   SAVANNAH - Animation Styles
   Keyframes, transition helpers, and GSAP-compatible reveal classes
   All scroll-driven via GSAP ScrollTrigger or CSS transitions.
   BANNED: window.addEventListener('scroll')
   ========================================================================== */

/* ---- Reveal Helper (initial hidden state for GSAP ScrollTrigger) ---- */
.reveal {
  opacity: 0;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ---- Cart Drawer Slide-In ---- */
.cart-overlay {
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-normal) var(--ease-smooth),
              visibility var(--dur-normal);
}

.cart-overlay.active {
  opacity: 1;
  visibility: visible;
}

.cart-drawer {
  transform: translateX(100%);
  transition: transform var(--dur-slow) var(--ease-smooth);
}

.cart-drawer.active {
  transform: translateX(0);
}

/* ---- Campaign Popup Entrance ---- */
.campaign-overlay {
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-normal) var(--ease-smooth),
              visibility var(--dur-normal);
}

.campaign-overlay.active {
  opacity: 1;
  visibility: visible;
}

.campaign-popup {
  transform: scale(0.95) translateY(10px);
  transition: transform var(--dur-slow) var(--ease-spring);
}

.campaign-overlay.active .campaign-popup {
  transform: scale(1) translateY(0);
}

/* ---- Mourning Overlay Fade ---- */
.mourning-overlay {
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-slow) var(--ease-smooth),
              visibility var(--dur-slow);
}

.mourning-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ---- Product Card Hover Interactions ---- */
.product-card-image img {
  transition: transform var(--dur-slow) var(--ease-smooth);
}

.product-card:hover .product-card-image img {
  transform: scale(1.03);
}

.product-card-add {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--dur-fast) var(--ease-smooth),
              transform var(--dur-fast) var(--ease-smooth);
}

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

/* On touch devices, always show add buttons */
@media (hover: none) {
  .product-card-add {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---- Navigation Link Underline ---- */
.nav-links a::after {
  content: '';
  display: block;
  width: 0;
  height: 1px;
  background-color: var(--text-primary);
  transition: width var(--dur-fast) var(--ease-smooth);
}

.nav-links a:hover::after {
  width: 100%;
}

/* ---- Announcement Bar Dismiss ---- */
.announcement-bar {
  transition: height var(--dur-normal) var(--ease-smooth),
              opacity var(--dur-normal) var(--ease-smooth),
              padding var(--dur-normal) var(--ease-smooth);
}

.announcement-bar.dismissed {
  height: 0;
  opacity: 0;
  padding-top: 0;
  padding-bottom: 0;
  pointer-events: none;
  overflow: hidden;
}

/* ---- Mobile Menu Transition ---- */
.mobile-menu {
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity var(--dur-normal) var(--ease-smooth),
              transform var(--dur-normal) var(--ease-smooth);
  pointer-events: none;
}

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

/* ---- Feature Flags Panel Expand ---- */
.flags-list {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--dur-normal) var(--ease-smooth);
}

.flags-list.open {
  max-height: 300px;
}

/* ---- Global Reduced Motion Override ---- */
@media (prefers-reduced-motion: reduce) {
  .cart-drawer,
  .cart-overlay,
  .campaign-overlay,
  .campaign-popup,
  .mourning-overlay,
  .product-card-image img,
  .product-card-add,
  .mobile-menu,
  .announcement-bar,
  .flags-list,
  .nav-links a::after,
  .qty-btn,
  .cart-item-remove,
  .cart-close,
  .campaign-close,
  .mourning-dismiss,
  .flags-toggle,
  .footer-col a,
  .btn-primary,
  .btn-secondary {
    transition: none !important;
  }

  .product-card:hover .product-card-image img {
    transform: none;
  }
}