/* ==========================================================================
   بازار طيبة للاقمصة — Animations
   Page transitions, loader, skeletons, micro-interactions.
   Easing tokens (--ease-*, --dur-*) live in css/main.css :root.
   iOS feel: springy entrances, soft glows, glass shimmer.
   ========================================================================== */

/* ---- Core keyframes ---- */

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

/* ---- Hero entrance (home) — one masked rise, no letter splitting ---- */
@keyframes heroRise {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes heroPop {
  from { opacity: 0; transform: scale(0.86) translateY(10px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.hero--enter .hero__overline  { animation: heroRise 0.5s var(--ease-out) 0.05s backwards; }
.hero--enter .hero__title     { animation: heroRise 0.5s var(--ease-out) 0.15s backwards; }
.hero--enter .hero__subtitle  { animation: heroRise 0.5s var(--ease-out) 0.25s backwards; }
.hero--enter .hero__cta > *   { animation: heroPop 0.4s var(--ease-out) 0.35s backwards; }
.hero--enter .hero__cta > *:nth-child(2) { animation-delay: 0.45s; }

@keyframes modalPop {
  from { opacity: 0; transform: translateY(18px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes loadingBarSweep {
  from { transform: translateX(-160%); }
  to   { transform: translateX(260%); }
}

/* ---- Micro-interaction keyframes ---- */

@keyframes toastIn {
  from { opacity: 0; transform: translateX(24px) scale(0.94); }
  to   { opacity: 1; transform: translateX(0) scale(1); }
}

@keyframes toastExit {
  from { opacity: 1; transform: translateX(0) scale(1); }
  to   { opacity: 0; transform: translateX(-18px) scale(0.94); }
}

@keyframes badgePop {
  0%   { transform: scale(0); }
  60%  { transform: scale(1.25); }
  100% { transform: scale(1); }
}

/* ============================================================
   Page transitions
   ============================================================ */

/* Scroll-reveal is intentionally inert: all content loads during the loading
   screen and is fully visible immediately (js/utils/reveal.js marks elements
   `reveal--visible` as they render). Nothing is hidden until scrolled into
   view anymore, so the `.reveal` / `[data-reveal]` classes have no effect. */

/* Buttons */
.btn--pulse {
  animation: btnPop 0.6s var(--ease-spring) both;
}
@keyframes btnPop {
  0%   { transform: scale(1); }
  35%  { transform: scale(1.09); }
  100% { transform: scale(1); }
}

/* Badge pop on cart change */
.badge-pop {
  animation: badgePop 0.4s var(--ease-spring);
}

/* ============================================================
   Loading overlay — glassy emerald screen
   ============================================================ */
.loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--overlay-bg);
  transition: opacity 0.25s var(--ease-out), visibility 0.25s;
}
.loading-overlay.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.loading-overlay__inner {
  display: grid;
  justify-items: center;
  gap: 1.1rem;
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--overlay-card-solid);
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.loading-overlay__text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--overlay-ink);
}

/* Geometric star spinner */
.spinner-star {
  position: relative;
  width: 56px;
  height: 56px;
  animation: spin 2.4s linear infinite;
}
.spinner-star__face {
  position: absolute;
  inset: 0;
  transform: rotate(45deg);
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(134, 239, 172, 0.95), rgba(52, 199, 89, 0.5));
}

.loading-bar {
  width: 170px;
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.16);
  overflow: hidden;
  position: relative;
}
.loading-bar__fill {
  position: absolute;
  inset-block-start: 0;
  width: 40%;
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, rgba(52, 199, 89, 0.5), #4ade80);
  animation: loadingBarSweep 1.1s var(--ease-in-out) infinite;
}

/* ============================================================
   Geometric 4-point star (brand motif)
   ============================================================ */
.geo-star {
  position: relative;
  width: 34px;
  height: 34px;
  display: inline-block;
}
.geo-star::before {
  content: "";
  position: absolute;
  inset: 8px;
  background: currentColor;
  transform: rotate(45deg);
  border-radius: 5px;
  box-shadow: 0 0 18px currentColor;
}
.geo-star::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1.5px solid currentColor;
  transform: rotate(45deg);
  border-radius: 4px;
  opacity: 0.45;
}

/* ============================================================
   Skeletons — frosted glass placeholders
   ============================================================ */
.skeleton {
  position: relative;
  overflow: hidden;
  background: rgba(230, 244, 234, 0.7);
  border-radius: var(--radius-sm);
}
.skeleton::after,
.skeleton-card__img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.75), transparent);
  animation: skeletonPulse 1.6s ease-in-out infinite;
}
@keyframes skeletonPulse {
  0%, 100% { opacity: 0.5; }
  50%      { opacity: 1; }
}

.skeleton-card {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--glass-border-soft);
  box-shadow: var(--glass-highlight), var(--shadow-sm);
}
.skeleton-card__img {
  aspect-ratio: var(--product-img-ratio);
  background: rgba(230, 244, 234, 0.7);
  position: relative;
  overflow: hidden;
}
.skeleton-card__lines { padding: 1rem 1.2rem 1.3rem; display: grid; gap: 0.6rem; }
.skeleton-card__line {
  height: 14px;
  width: 80%;
  border-radius: 6px;
  background: rgba(230, 244, 234, 0.7);
}
.skeleton-card__line--short { width: 40%; }

/* ============================================================
   Reduced motion — respect user preference (iOS 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;
  }
}

/* The mobile filter drawer is a fixed overlay: it must stay off-screen when
   closed even with reduced motion, and simply appear (not slide) when opened. */
@media (prefers-reduced-motion: reduce) and (max-width: 960px) {
  #shop-filters {
    opacity: 1 !important;
    transform: translateX(100%) !important;
    filter: none !important;
    transition: none !important;
  }
  #shop-filters.is-open { transform: none !important; }
}

/* ============================================================
   Motion — smooth scrolling + pointer-reactive effects
   Scroll progress bar, back-to-top, auto-hiding navbar, cursor
   glow, card tilt/sheen, hero parallax. JS (js/utils/motion.js)
   drives the custom properties / inline transforms.
   ============================================================ */

/* ---- Scroll progress bar ---- */
#scroll-progress {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  height: 3px;
  z-index: 1100;
  background: linear-gradient(90deg, var(--ios-green-2), var(--ios-green));
  box-shadow: 0 0 12px rgba(52, 199, 89, 0.55);
  transform: scaleX(0);
  transform-origin: 100% 50%; /* fill from the right (RTL start) */
  pointer-events: none;
}
:dir(ltr) #scroll-progress { transform-origin: 0 50%; }

/* ---- Back to top ---- */
.back-to-top {
  position: fixed;
  inset-inline-end: var(--space-4);
  inset-block-end: var(--space-4);
  z-index: 950;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  color: var(--ink);
  background: var(--glass-bg-strong);
  box-shadow: var(--glass-highlight), var(--shadow);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--dur) var(--ease-out), transform var(--dur) var(--ease-spring), visibility var(--dur), background var(--dur);
}
.back-to-top svg { width: 20px; height: 20px; }
.back-to-top:hover { background: var(--glass-bg); transform: translateY(-2px); }
@media (prefers-reduced-motion: reduce) { .back-to-top { transform: none !important; } }
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }

/* ---- Navbar scroll states ---- */
.nav {
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), background var(--dur), box-shadow var(--dur), border-color var(--dur);
}
.nav--hidden { transform: translateY(-105%); }
.nav--scrolled {
  border-block-end-color: var(--glass-border);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 10px 30px rgba(2, 12, 8, 0.35);
}