/* vestadesign — Natural image zoom lightbox */
.vz-zoomable {
  cursor: zoom-in !important;
  transition: filter 0.25s ease, transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
.vz-zoomable:hover {
  filter: brightness(1.03) saturate(1.05);
}

.vz-no-scroll {
  overflow: hidden !important;
}

.vz-lightbox {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.28s ease, visibility 0.28s;
}
.vz-lightbox.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.vz-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(8, 14, 28, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.vz-chrome {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
  padding: 0.85rem 1rem 0;
  pointer-events: none;
}
.vz-tools {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.45rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(12px);
  pointer-events: auto;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.25);
}
.vz-btn {
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 1.15rem;
  font-weight: 600;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: background 0.2s, transform 0.15s;
  line-height: 1;
  font-family: inherit;
}
.vz-btn:hover {
  background: rgba(0, 184, 160, 0.45);
  transform: scale(1.05);
}
.vz-btn.vz-close {
  background: rgba(255, 255, 255, 0.18);
  font-size: 1.35rem;
}
.vz-pct {
  min-width: 3.2rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.8rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  padding: 0 0.25rem;
}

.vz-stage {
  position: relative;
  z-index: 1;
  flex: 1;
  display: grid;
  place-items: center;
  overflow: hidden;
  touch-action: none;
  cursor: zoom-in;
  padding: 0.5rem 1rem 2.5rem;
}
.vz-stage.can-pan {
  cursor: grab;
}
.vz-stage.dragging {
  cursor: grabbing;
}

.vz-img {
  max-width: min(92vw, 1100px);
  max-height: min(78vh, 900px);
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 14px;
  box-shadow:
    0 24px 64px rgba(0, 0, 0, 0.45),
    0 0 0 1px rgba(255, 255, 255, 0.08);
  transform-origin: center center;
  transition: box-shadow 0.25s ease;
  user-select: none;
  -webkit-user-drag: none;
  will-change: transform;
  background: #0f1b33;
}
.vz-img.is-zoomed {
  box-shadow:
    0 32px 80px rgba(0, 0, 0, 0.55),
    0 0 0 1px rgba(0, 184, 160, 0.25);
  border-radius: 8px;
}
.vz-img.loading {
  opacity: 0.5;
  filter: blur(4px);
}

.vz-hint {
  position: relative;
  z-index: 2;
  text-align: center;
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0 1rem 1rem;
  margin: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}

/* Cover on SEO pages — zoom affordance */
.cover {
  position: relative;
  cursor: zoom-in;
}
.cover::after {
  content: "🔍 Click để zoom tự nhiên";
  position: absolute;
  left: 50%;
  bottom: 1rem;
  transform: translateX(-50%) translateY(6px);
  background: rgba(15, 27, 51, 0.82);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.45rem 0.9rem;
  border-radius: 99px;
  opacity: 0;
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: none;
  white-space: nowrap;
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.cover:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.cover img {
  transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1), filter 0.35s;
}
.cover:hover img {
  transform: scale(1.03);
  filter: brightness(1.04);
}

/* Hero visual on catalog */
.hero-visual {
  cursor: zoom-in;
  position: relative;
}
.hero-visual::after {
  content: "🔍 Zoom";
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 4;
  background: rgba(255, 255, 255, 0.92);
  color: #0f1b33;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.35rem 0.65rem;
  border-radius: 99px;
  box-shadow: 0 4px 14px rgba(30, 55, 100, 0.15);
  opacity: 0;
  transition: opacity 0.25s;
  pointer-events: none;
}
.hero-visual:hover::after {
  opacity: 1;
}

/* Product thumbs: secondary zoom icon */
.product-media {
  position: relative;
}
.product-card .thumb-zoom-btn {
  position: absolute;
  bottom: 0.75rem;
  right: 0.75rem;
  z-index: 4;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.95);
  color: #0f1b33;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
  cursor: zoom-in;
  display: grid;
  place-items: center;
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.25s, transform 0.25s, background 0.2s;
  font-size: 0.95rem;
}
.product-card:hover .thumb-zoom-btn,
.product-card:focus-within .thumb-zoom-btn {
  opacity: 1;
  transform: scale(1);
}
.product-card .thumb-zoom-btn:hover {
  background: linear-gradient(135deg, #00c9a7, #5b7cfa);
  color: #fff;
}

@media (max-width: 640px) {
  .vz-img {
    max-width: 96vw;
    max-height: 72vh;
    border-radius: 10px;
  }
  .vz-hint {
    font-size: 0.72rem;
  }
  .cover::after {
    font-size: 0.7rem;
    bottom: 0.65rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .vz-lightbox,
  .vz-img,
  .cover img {
    transition: none !important;
  }
}