/* TNG Exhibition UX — Obit rail, Arc grid, Hover Luxe, Room header, Price strip */

body.pair-page {
  --exhibition-room-accent: var(--pair-atmo-accent, var(--pair-amber));
  --exhibition-room-deep: var(--pair-atmo-deep, var(--pair-bg));
  --exhibition-rail-height: clamp(280px, 42vh, 420px);
  --exhibition-arc-radius: 1.12;
  --exhibition-luxe-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --exhibition-label-muted: color-mix(in srgb, var(--pair-muted) 82%, transparent);
}

/* ── Exhibition Room Header ── */
.exhibition-room {
  position: relative;
  z-index: 2;
  padding: clamp(1.25rem, 3vw, 2rem) clamp(1.25rem, 4vw, 2.5rem) clamp(1.5rem, 3.5vw, 2.25rem);
  border-bottom: 1px solid color-mix(in srgb, var(--pair-text) 7%, transparent);
  background:
    linear-gradient(
      135deg,
      color-mix(in srgb, var(--pair-atmo-left) 55%, transparent) 0%,
      color-mix(in srgb, var(--pair-atmo-right) 40%, transparent) 100%
    );
}
.exhibition-room::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 80% 60% at 20% 0%,
    var(--pair-atmo-glow, color-mix(in srgb, var(--exhibition-room-accent) 10%, transparent)),
    transparent 70%
  );
  pointer-events: none;
}
.exhibition-room__inner {
  position: relative;
  max-width: 72rem;
  margin: 0 auto;
  display: grid;
  gap: 0.65rem;
}
.exhibition-room__index {
  font-size: 0.54rem;
  font-weight: 600;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--exhibition-room-accent);
}
.exhibition-room__title {
  font-family: var(--pair-display-font);
  font-size: clamp(1.35rem, 3.2vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -0.06em;
  line-height: 1.05;
  text-transform: uppercase;
  color: var(--pair-text);
  margin: 0;
}
.exhibition-room__collision {
  font-size: clamp(0.72rem, 1.4vw, 0.88rem);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--pair-muted);
  margin: 0;
}
.exhibition-room__feel {
  max-width: 44rem;
  margin: 0.35rem 0 0;
  font-size: clamp(0.82rem, 1.5vw, 0.95rem);
  font-style: italic;
  line-height: 1.55;
  letter-spacing: 0.02em;
  color: var(--exhibition-label-muted);
}

/* ── Curator Wall Label ── */
.exhibition-wall-label {
  display: grid;
  gap: 0.2rem;
  margin-top: 0.65rem;
  padding-top: 0.55rem;
  border-top: 1px solid color-mix(in srgb, var(--pair-text) 8%, transparent);
}
.exhibition-wall-label__role {
  font-size: 0.5rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--exhibition-room-accent);
}
.exhibition-wall-label__credit {
  font-size: 0.58rem;
  font-style: italic;
  letter-spacing: 0.04em;
  color: var(--exhibition-label-muted);
}

/* ── Price Strip (signature items only) ── */
.exhibition-price {
  display: inline-block;
  margin-top: 0.45rem;
  padding: 0.28rem 0.55rem;
  font-size: 0.52rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--pair-text);
  border: 1px solid color-mix(in srgb, var(--exhibition-room-accent) 35%, transparent);
  background: color-mix(in srgb, var(--exhibition-room-deep) 65%, transparent);
}

/* ── Obit Rail — horizontal editorial scroll ── */
.exhibition-obit {
  padding: clamp(2rem, 5vw, 3.5rem) 0 clamp(1.5rem, 3vw, 2.5rem);
  overflow: hidden;
}
.exhibition-obit__header {
  padding: 0 clamp(1.25rem, 4vw, 2.5rem) 1rem;
  max-width: 72rem;
  margin: 0 auto;
}
.exhibition-obit__kicker {
  font-size: 0.54rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--exhibition-room-accent);
  margin-bottom: 0.5rem;
}
.exhibition-obit__title {
  font-family: var(--pair-display-font);
  font-size: clamp(1.1rem, 2.4vw, 1.65rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.15;
  margin: 0 0 0.35rem;
  color: var(--pair-text);
}
.exhibition-obit__hint {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--pair-muted);
  margin: 0;
}
.exhibition-obit__track-wrap {
  position: relative;
  margin-top: 1.25rem;
}
.exhibition-obit__track-wrap::before,
.exhibition-obit__track-wrap::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 1.25rem;
  width: clamp(1rem, 4vw, 3rem);
  z-index: 2;
  pointer-events: none;
}
.exhibition-obit__track-wrap::before {
  left: 0;
  background: linear-gradient(90deg, var(--pair-bg) 0%, transparent 100%);
}
.exhibition-obit__track-wrap::after {
  right: 0;
  background: linear-gradient(270deg, var(--pair-bg) 0%, transparent 100%);
}
.exhibition-obit-rail {
  display: flex;
  gap: clamp(0.85rem, 2vw, 1.35rem);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem) 0.75rem;
  cursor: grab;
  scrollbar-width: thin;
  scrollbar-color: var(--exhibition-room-accent) transparent;
}
.exhibition-obit-rail.is-dragging {
  cursor: grabbing;
  scroll-snap-type: none;
}
.exhibition-obit-rail::-webkit-scrollbar { height: 3px; }
.exhibition-obit-rail::-webkit-scrollbar-thumb {
  background: var(--exhibition-room-accent);
  border-radius: 2px;
}
.exhibition-obit-rail__item {
  flex: 0 0 clamp(240px, 36vw, 340px);
  scroll-snap-align: start;
  margin: 0;
  opacity: 0;
  transform: translateY(1rem);
  transition:
    opacity 1s var(--exhibition-luxe-ease),
    transform 1s var(--exhibition-luxe-ease);
}
.exhibition-obit-rail__item.is-revealed {
  opacity: 1;
  transform: translateY(0);
}
.exhibition-obit-rail__item img,
.exhibition-obit-rail__item .tng-picture {
  width: 100%;
  height: var(--exhibition-rail-height);
  object-fit: cover;
  display: block;
  filter: saturate(0.9) contrast(1.04);
  transition: filter 0.6s var(--exhibition-luxe-ease), transform 0.6s var(--exhibition-luxe-ease);
}
.exhibition-obit-rail__item:hover img,
.exhibition-obit-rail__item:focus-within img {
  filter: saturate(0.95) contrast(1.06);
  transform: scale(1.015);
}
.exhibition-obit__progress {
  height: 2px;
  margin: 0.75rem clamp(1.25rem, 4vw, 2.5rem) 0;
  background: color-mix(in srgb, var(--pair-text) 8%, transparent);
  border-radius: 1px;
  overflow: hidden;
}
.exhibition-obit__progress-fill {
  height: 100%;
  width: 0%;
  background: var(--exhibition-room-accent);
  transition: width 0.15s linear;
}

/* ── Arc Grid — masonry with curved perspective ── */
.exhibition-arc {
  padding: clamp(2rem, 4vw, 3rem) clamp(1.25rem, 4vw, 2.5rem);
}
.exhibition-arc__header {
  max-width: 72rem;
  margin: 0 auto 1.5rem;
}
.exhibition-arc-grid {
  column-count: 2;
  column-gap: clamp(0.75rem, 2vw, 1.25rem);
  max-width: 72rem;
  margin: 0 auto;
}
@media (min-width: 768px) {
  .exhibition-arc-grid { column-count: 3; }
}
@media (min-width: 1100px) {
  .exhibition-arc-grid { column-count: 4; }
}
.exhibition-arc-grid__item {
  break-inside: avoid;
  margin-bottom: clamp(0.75rem, 2vw, 1.25rem);
  opacity: 0;
  transform: translateY(1.25rem) scale(0.96);
  transition:
    opacity 1.1s var(--exhibition-luxe-ease),
    transform 1.1s var(--exhibition-luxe-ease);
}
.exhibition-arc-grid__item.is-revealed {
  opacity: 1;
  transform: translateY(0) scale(1);
}
.exhibition-arc-grid__item img,
.exhibition-arc-grid__item .tng-picture {
  width: 100%;
  display: block;
  border-radius: 2px;
  filter: saturate(0.88) contrast(1.04);
  transition: transform 0.55s var(--exhibition-luxe-ease), filter 0.55s var(--exhibition-luxe-ease);
}
.exhibition-arc-grid__item[data-arc-offset="-1"] img { transform: scale(0.94) translateY(4%); }
.exhibition-arc-grid__item[data-arc-offset="0"] img { transform: scale(1); }
.exhibition-arc-grid__item[data-arc-offset="1"] img { transform: scale(0.94) translateY(4%); }
.exhibition-arc-grid__item:hover img {
  filter: saturate(0.94) contrast(1.06);
  transform: scale(1.02) !important;
}
.exhibition-arc-grid__item figcaption {
  margin-top: 0.45rem;
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--pair-muted);
}

/* ── Hover Luxe — evidence signature cards ── */
.exhibition-hover-luxe {
  position: relative;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--pair-text) 6%, transparent);
  background: color-mix(in srgb, var(--pair-atmo-left) 30%, transparent);
  transition:
    transform 0.55s var(--exhibition-luxe-ease),
    box-shadow 0.55s var(--exhibition-luxe-ease),
    border-color 0.55s var(--exhibition-luxe-ease);
}
.exhibition-hover-luxe:hover,
.exhibition-hover-luxe:focus-within {
  transform: scale(1.02);
  border-color: color-mix(in srgb, var(--exhibition-room-accent) 30%, transparent);
  box-shadow: 0 1.5rem 2.5rem -1.25rem color-mix(in srgb, var(--exhibition-room-deep) 75%, transparent);
}
.exhibition-hover-luxe__media {
  overflow: hidden;
}
.exhibition-hover-luxe__media img,
.exhibition-hover-luxe__media .tng-picture {
  width: 100%;
  display: block;
  transition: transform 0.65s var(--exhibition-luxe-ease), filter 0.65s var(--exhibition-luxe-ease);
}
.exhibition-hover-luxe:hover .exhibition-hover-luxe__media img,
.exhibition-hover-luxe:focus-within .exhibition-hover-luxe__media img {
  transform: scale(1.04);
  filter: saturate(0.95) contrast(1.06);
}
.exhibition-hover-luxe__caption {
  padding: 0.85rem 0.9rem 1rem;
  transform: translateY(0.35rem);
  opacity: 0.72;
  transition: opacity 0.45s var(--exhibition-luxe-ease), transform 0.45s var(--exhibition-luxe-ease);
}
.exhibition-hover-luxe:hover .exhibition-hover-luxe__caption,
.exhibition-hover-luxe:focus-within .exhibition-hover-luxe__caption {
  opacity: 1;
  transform: translateY(0);
}
.exhibition-hover-luxe__reveal {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition:
    max-height 0.55s var(--exhibition-luxe-ease),
    opacity 0.45s var(--exhibition-luxe-ease),
    margin 0.45s var(--exhibition-luxe-ease);
  margin-top: 0;
}
.exhibition-hover-luxe:hover .exhibition-hover-luxe__reveal,
.exhibition-hover-luxe:focus-within .exhibition-hover-luxe__reveal {
  max-height: 4rem;
  opacity: 1;
  margin-top: 0.35rem;
}
.exhibition-hover-luxe__reveal p {
  margin: 0;
  font-size: 0.62rem;
  font-style: italic;
  line-height: 1.45;
  color: var(--exhibition-label-muted);
}

@media (prefers-reduced-motion: reduce) {
  .exhibition-obit-rail__item,
  .exhibition-arc-grid__item {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .exhibition-hover-luxe:hover,
  .exhibition-hover-luxe:focus-within {
    transform: none;
  }
  .exhibition-hover-luxe__reveal {
    max-height: none;
    opacity: 1;
  }
}