/* ==========================================================================
   gallery.css — gx- grid + gxlb lightbox. Owned by the gallery builder.
   The gallery section is a night band: --bg/--fg are already remapped.
   ========================================================================== */

.gx__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-3);
  margin: 0;
}

@media (min-width: 48rem) {
  .gx__grid { grid-template-columns: repeat(3, 1fr); gap: var(--s-4); }
}

.gx__item { display: block; }

/* the front render deserves more room */
.gx__item:first-child {
  grid-column: 1 / -1;
}
@media (min-width: 48rem) {
  .gx__item:first-child { grid-column: span 2; grid-row: span 2; }
}

.gx__frame-btn {
  position: relative;
  display: block;
  inline-size: 100%;
  block-size: 100%;
  padding: 0;
  border: var(--hairline) solid var(--rule-c);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--bg-2);
  cursor: zoom-in;
  transition: border-color var(--dur-2) var(--ease-out);
}

.gx__frame-btn:hover { border-color: var(--fg-2); }

.gx__img {
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  aspect-ratio: 1;
  transition: transform var(--dur-3) var(--ease-out), opacity var(--dur-3) var(--ease-out);
}

.gx__item:first-child .gx__img { aspect-ratio: 4 / 3.4; object-fit: contain; padding: var(--s-4); }

.gx__frame-btn:hover .gx__img { transform: scale(1.025); }

.gx__kind {
  position: absolute;
  inset-block-end: var(--s-2);
  inset-inline-start: var(--s-2);
  padding: var(--s-1) var(--s-2);
  border-radius: var(--r-sm);
  background: color-mix(in srgb, var(--night) 78%, transparent);
  color: var(--snow);
  font-size: var(--fs-nano);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.gx__failed {
  display: grid;
  place-items: center;
  min-block-size: 8rem;
  padding: var(--s-6);
  color: var(--fg-3);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.gx-empty {
  padding: var(--s-8);
  border: var(--hairline) dashed var(--rule-c);
  border-radius: var(--r-md);
  color: var(--fg-2);
  text-align: center;
}

/* --------------------------------------------------------------------------
   Lightbox
   -------------------------------------------------------------------------- */

html.gxlb-open { overflow: hidden; }

.gxlb {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal, 80);
  display: none;
}

.gxlb.is-open { display: block; }

.gxlb__backdrop {
  position: absolute;
  inset: 0;
  background: rgb(8 9 8 / 0.88);
}

html[data-motion='full'] .gxlb.is-open .gxlb__backdrop {
  animation: gxlb-fade var(--dur-3) var(--ease-out);
}
@keyframes gxlb-fade { from { opacity: 0; } }

.gxlb__dialog {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-rows: 1fr auto;
  padding: var(--s-3);
  gap: var(--s-3);
}

@media (min-width: 48rem) {
  .gxlb__dialog { padding: var(--s-6); }
}

.gxlb__stage {
  position: relative;
  display: grid;
  grid-template-rows: 1fr auto;
  min-block-size: 0;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--night-2, #191a17);
}

.gxlb__viewport {
  position: relative;
  min-block-size: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
  touch-action: none;
}

.gxlb__viewport.is-zoomed { cursor: grab; }
.gxlb__viewport.is-zoomed:active { cursor: grabbing; }

.gxlb__img {
  max-inline-size: 100%;
  max-block-size: 100%;
  object-fit: contain;
  transition: transform var(--dur-2) var(--ease-out);
  user-select: none;
  -webkit-user-drag: none;
}

.gxlb__img.is-failed { opacity: 0; }

.gxlb__failed {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: var(--s-6);
  color: color-mix(in srgb, var(--snow) 60%, transparent);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: center;
}

.gxlb__stage[data-loading='true']::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, transparent 30%, rgb(255 255 255 / 0.05) 50%, transparent 70%)
    var(--night-2, #191a17);
  background-size: 200% 100%;
  animation: gxlb-sheen 1.4s linear infinite;
  pointer-events: none;
}
@keyframes gxlb-sheen { to { background-position-x: -200%; } }

.gxlb__cap {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2) var(--s-4);
  justify-content: space-between;
  align-items: baseline;
  padding: var(--s-3) var(--s-4);
  color: var(--snow-2, #c7c9c0);
  font-size: var(--fs-small);
  border-block-start: var(--hairline) solid var(--rule-night, #333);
}

.gxlb__count { color: var(--snow-3, #9a9d94); letter-spacing: 0.1em; }

.gxlb__bar {
  display: flex;
  gap: var(--s-2);
  justify-content: center;
}

.gxlb__btn {
  min-inline-size: var(--tap, 48px);
  min-block-size: var(--tap, 48px);
  border: var(--hairline) solid var(--rule-night, #333);
  border-radius: var(--r-pill, 999px);
  background: var(--night-2, #191a17);
  color: var(--snow, #f2f2ee);
  font-size: 1.15rem;
  line-height: 1;
  display: grid;
  place-items: center;
  transition: background-color var(--dur-1) var(--ease-out),
              border-color var(--dur-1) var(--ease-out);
}

.gxlb__btn:hover { background: var(--night-3, #22231f); border-color: var(--snow-3, #9a9d94); }
.gxlb__btn[aria-pressed='true'] { background: var(--snow, #f2f2ee); color: var(--night, #0c0d0c); }

.gxlb__btn--close { margin-inline-start: var(--s-4); }

@media (prefers-reduced-motion: reduce) {
  .gx__img,
  .gxlb__img { transition: none !important; }
  .gxlb__stage[data-loading='true']::after { animation: none !important; }
}