/* =============================================================
   detail-product.css
   Enterprise Optimized: Swiper gallery, GPU compositing,
   zero-CLS aspect ratio, skeleton loaders, a11y & lightbox.
   ============================================================= */

/* ── Override product-detail to single column ── */
.product-detail {
  display: block !important;
}

/* ── Swiper Gallery Wrapper ── */
.swiper-gallery-wrap {
  width: 100%;
}

/* ── Product Info Bar (name + prices + buy now, below slider) ── */
.product-info-bar {
  width: 100%;
  margin-top: var(--space-6);
  padding: var(--space-6) var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.product-info-bar .product-detail__name {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: var(--font-weight-black);
  color: var(--color-text);
  margin-bottom: 0;
  line-height: 1.2;
  letter-spacing: -0.02em;
  word-break: break-word;
}

.product-info-bar__prices {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
}

.product-info-bar__prices .price-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}

.product-info-bar__prices .price-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: var(--radius-sm, 4px);
  line-height: 1.4;
}

.product-info-bar__prices .price-badge--jawa {
  background: rgba(185, 32, 51, 0.12);
  color: var(--color-accent, #b92033);
  border: 1px solid rgba(185, 32, 51, 0.28);
}

.product-info-bar__prices .price-badge--luar {
  background: rgba(0, 0, 0, 0.06);
  color: #111111;
  border: 1px solid rgba(0, 0, 0, 0.15);
  font-size: 10px;
  padding: 2px 8px;
}

.product-info-bar .product-detail__price {
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
  font-weight: var(--font-weight-black);
  color: var(--color-accent);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.product-info-bar .product-detail__price--luar {
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
  color: #111111;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.product-info-bar .btn--primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  box-shadow: 0 4px 14px var(--color-accent-glow);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.product-info-bar .btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(185, 32, 51, 0.35);
}

/* ── Main Swiper Ratio-Box (Responsive 16:9 Desktop / 4:3 Mobile, Zero CLS) ── */
.swiper-main-ratio {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 580px;
  margin-bottom: var(--space-4);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

@media (max-width: 768px) {
  .product-info-bar {
    padding: var(--space-5) var(--space-5);
    border-radius: var(--radius-lg);
  }
  .swiper-main-ratio {
    aspect-ratio: 4 / 3;
    max-height: 400px;
  }
}

/* Fallback for older browsers without aspect-ratio support */
@supports not (aspect-ratio: 4 / 3) {
  .swiper-main-ratio {
    height: 0;
    padding-bottom: 75%;
  }
}

/* The actual Swiper element fills the ratio-box absolutely */
.swiper-main {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  overflow: hidden;
  touch-action: pan-y;
}

/* Swiper wrapper stays at default layout — hardware accelerated strictly on the moving node */
.swiper-main .swiper-wrapper {
  height: 100%;
  will-change: transform;
  transform: translate3d(0, 0, 0);
  backface-visibility: hidden;
}

/* Slides are clean flex items without duplicate GPU texture allocation */
.swiper-main .swiper-slide {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  cursor: zoom-in;
  height: 100%;
  box-sizing: border-box;
}

.swiper-main .swiper-slide img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  display: block;
  user-select: none;
  -webkit-user-drag: none;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease-out;
}

/* Hero image and loaded images display immediately */
.swiper-main .swiper-slide:first-child img,
.swiper-main .swiper-slide.is-loaded img {
  opacity: 1;
}

/* ── Skeleton Shimmering Effect (Terminated when loaded to save CPU/GPU) ── */
.swiper-slide-skeleton {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, #16181d 25%, #222630 50%, #16181d 75%);
  background-size: 200% 100%;
  animation: skeletonPulse 1.5s infinite linear;
  border-radius: var(--radius-lg);
  z-index: 1;
  pointer-events: none;
}

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

/* COMPLETELY disable skeleton animation once loaded so background paint loop stops */
.swiper-main .swiper-slide.is-loaded .swiper-slide-skeleton,
.swiper-main .swiper-slide:first-child .swiper-slide-skeleton {
  display: none !important;
  animation: none !important;
  opacity: 0 !important;
  visibility: hidden !important;
}

/* ── Zoom Hint Micro-Affordance Badge ── */
.swiper-zoom-badge {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #fff;
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  padding: 6px 12px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  z-index: 5;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.swiper-main:hover .swiper-zoom-badge {
  background: rgba(0, 0, 0, 0.9);
  border-color: rgba(255, 255, 255, 0.25);
}

/* ── Thumbnail Swiper ── */
.swiper-thumbs {
  height: 76px;
  touch-action: pan-x;
  overflow: hidden;
}

.swiper-thumbs .swiper-wrapper {
  will-change: transform;
  transform: translate3d(0, 0, 0);
}

.swiper-thumbs .swiper-slide {
  width: 76px;
  height: 76px;
  padding: var(--space-1);
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  opacity: 0.55;
  transition: border-color 0.2s, opacity 0.2s;
  touch-action: pan-x;
  user-select: none;
  -webkit-user-select: none;
}

.swiper-thumbs .swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  user-select: none;
  -webkit-user-drag: none;
  pointer-events: none;
}

.swiper-thumbs .swiper-slide-thumb-active {
  border-color: var(--color-accent);
  opacity: 1;
}

/* ── Navigation Arrows (WCAG 2.5.5 Touch Target >= 44x44px) ── */
.swiper-main .swiper-button-prev,
.swiper-main .swiper-button-next {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  opacity: 0;
  cursor: pointer;
  z-index: 10;
  transition: opacity 0.2s, background 0.2s, transform 0.2s;
}

.swiper-main:hover .swiper-button-prev,
.swiper-main:hover .swiper-button-next {
  opacity: 1;
}

.swiper-main .swiper-button-prev:hover,
.swiper-main .swiper-button-next:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: scale(1.05);
}

.swiper-main .swiper-button-prev::after,
.swiper-main .swiper-button-next::after {
  font-size: 14px;
  font-weight: 700;
}

/* Mobile ergonomics: Hide side arrows on small screens, prioritize swipe */
@media (max-width: 768px) {
  .swiper-main .swiper-button-prev,
  .swiper-main .swiper-button-next {
    display: none !important;
  }
  
  .swiper-zoom-badge {
    padding: 4px 8px;
    font-size: 10px;
  }
}

/* ── Pagination Bullets ── */
.swiper-main .swiper-pagination-bullet {
  background: rgba(255, 255, 255, 0.5);
  opacity: 1;
  transition: background 0.2s, transform 0.2s;
  width: 8px;
  height: 8px;
}

.swiper-main .swiper-pagination-bullet-active {
  background: var(--color-accent);
  transform: scale(1.3);
}

/* ── Image Counter badge (Accessible ARIA Live Region) ── */
.swiper-counter {
  position: absolute;
  bottom: var(--space-3);
  right: var(--space-3);
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: #fff;
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.1);
  z-index: 10;
  pointer-events: none;
}

/* ── Focus Indicators (WCAG 2.2 Level AA Compliance) ── */
.swiper-main .swiper-button-prev:focus-visible,
.swiper-main .swiper-button-next:focus-visible,
.swiper-thumbs .swiper-slide:focus-visible,
#swiperLbClose:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ── Lightbox Modal ── */
#swiperLightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

#swiperLightbox.lightbox--open {
  pointer-events: auto;
  opacity: 1;
}

#swiperLbBackdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.95);
}

#swiperLbBox {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-10);
}

#swiperLbImg {
  max-width: 90vw;
  max-height: 85vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.7);
  display: block;
  animation: lbZoomIn 0.25s ease;
}

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

#swiperLbClose {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  font-size: var(--text-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: background 0.2s, transform 0.2s;
}

#swiperLbClose:hover {
  background: var(--color-accent);
  transform: scale(1.05);
}

/* ── Reduced Motion Media Query (Accessibility) ── */
@media (prefers-reduced-motion: reduce) {
  .swiper-main .swiper-wrapper {
    transition-duration: 0ms !important;
  }
  .swiper-slide-skeleton {
    animation: none !important;
  }
  #swiperLbImg {
    animation: none !important;
  }
}