/* Image zoom (dependency-free)
   Works with images inside .gh-content
*/

.gh-content img.is-zoomable{
  cursor: zoom-in;
  transition: transform .15s ease, filter .15s ease;
}

.gh-content img.is-zoomable:focus-visible{
  outline: 2px solid currentColor;
  outline-offset: 4px;
}

.img-zoom-overlay{
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  padding: clamp(16px, 3vw, 28px);
  background: rgba(8, 10, 14, .72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease;
}

.img-zoom-overlay.is-open{
  opacity: 1;
  pointer-events: auto;
}

.img-zoom-figure{
  position: relative;
  width: min(1100px, 96vw);
  max-height: 86vh;
  margin: 0;
  display: grid;
  grid-template-rows: 1fr auto;
  gap: 12px;
}

.img-zoom-img{
  width: 100%;
  height: 100%;
  max-height: 78vh;
  object-fit: contain;
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0,0,0,.45);
  background: rgba(255,255,255,.03);
  cursor: zoom-in;
  user-select: none;
  -webkit-user-drag: none;
  transform-origin: 50% 50%;
  transition: transform .18s ease;
}

.img-zoom-overlay.is-zoomed .img-zoom-img{
  cursor: zoom-out;
  transform: scale(1.6);
}

/* When zoomed, allow panning (we'll move via translate in JS; keep transition minimal) */
.img-zoom-overlay.is-dragging .img-zoom-img{
  transition: none;
}

.img-zoom-caption{
  color: rgba(255,255,255,.85);
  font: 500 14px/1.4 Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  text-align: center;
  letter-spacing: .01em;
}

.img-zoom-close{
  position: fixed;
  top: 16px;
  right: 16px;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.18);
  background: rgba(0,0,0,.25);
  color: rgba(255,255,255,.9);
  display: grid;
  place-items: center;
  cursor: pointer;
}

.img-zoom-close span{
  font-size: 28px;
  line-height: 1;
  margin-top: -2px;
}

.img-zoom-close:focus-visible{
  outline: 2px solid rgba(255,255,255,.85);
  outline-offset: 2px;
}

html.is-zoom-open{
  overflow: hidden;
}

@media (prefers-reduced-motion: reduce){
  .img-zoom-overlay{ transition: none; }
  .gh-content img.is-zoomable{ transition: none; }
}