/* lightbox.css - click-to-zoom popup for figures. Modern Ink. */

/* in-page affordance: lift a touch + soft indigo glow on hover */
.zoomable {
  cursor: zoom-in;
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease;
}
.zoomable:hover {
  transform: scale(1.03);
  box-shadow: 0 8px 26px rgba(47, 67, 196, 0.2);
}

/* full-screen backdrop; fades in, click outside the figure to close */
.lb {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3vmin;
  background: color-mix(in srgb, var(--ink) 66%, transparent);
  -webkit-backdrop-filter: blur(3px) saturate(1.04);
  backdrop-filter: blur(3px) saturate(1.04);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.24s ease,
    visibility 0s linear 0.24s;
}
.lb.open {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.2s ease;
}

.lb-fig {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  max-width: 100%;
  max-height: 100%;
}

/* large by default; the grow-from-thumbnail transform is driven inline from JS */
.lb-img {
  display: block;
  width: min(1040px, 92vw);
  height: auto;
  max-height: 86vh;
  object-fit: contain;
  background: #fff;
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 18px 60px rgba(22, 24, 29, 0.34);
  transform-origin: center center;
  will-change: transform, opacity;
}

.lb-cap {
  font-family: var(--sans);
  color: #eef0f3;
  font-size: 13.5px;
  line-height: 1.5;
  text-align: center;
  max-width: min(720px, 90vw);
  margin: 0;
  font-style: normal;
  opacity: 0;
  transition: opacity 0.22s ease 0.05s;
}
.lb.open .lb-cap {
  opacity: 1;
}
.lb-cap a {
  color: #fff;
  border-bottom-color: rgba(255, 255, 255, 0.5);
}
.lb-cap .cap-mini {
  display: none;
}
.lb-cap .cap-full {
  display: inline;
}

.lb-close {
  position: absolute;
  top: max(14px, 2.5vmin);
  right: max(14px, 2.5vmin);
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 999px;
  background: rgba(22, 24, 29, 0.34);
  color: #fff;
  font-family: var(--sans);
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
  transition:
    background 0.15s ease,
    transform 0.15s ease;
}
.lb-close:hover {
  background: rgba(22, 24, 29, 0.62);
  transform: scale(1.06);
}

@media (prefers-reduced-motion: reduce) {
  .zoomable,
  .lb,
  .lb-cap,
  .lb-close {
    transition: opacity 0.12s ease;
  }
  .zoomable:hover {
    transform: none;
  }
}