/* ═══════════════════════════════════════════════════════════════════════════
   GALLERY PAGE — image-led, no captions
   ═══════════════════════════════════════════════════════════════════════════ */

.gallery-page {
  min-height: 100vh;
}

/* ─── Top nav ───────────────────────────────────────────────────────────── */
.gallery-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: calc(1rem + var(--safe-top)) max(var(--space-md), var(--safe-right))
    1rem max(var(--space-md), var(--safe-left));
  background: linear-gradient(180deg, rgba(10, 10, 10, 0.92) 0%, rgba(10, 10, 10, 0) 100%);
  pointer-events: none;
}

.gallery-nav__back,
.gallery-nav__cta {
  pointer-events: auto;
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.gallery-nav__back {
  color: var(--color-body);
}

.gallery-nav__back:hover,
.gallery-nav__back:focus-visible {
  color: var(--color-gold-light);
}

.gallery-nav__cta {
  color: var(--color-bg);
  background: linear-gradient(135deg, var(--color-gold-light), var(--color-gold));
  border: 1px solid var(--color-gold);
  padding: 0.625rem 1rem;
}

.gallery-nav__cta:hover,
.gallery-nav__cta:focus-visible {
  box-shadow: 0 0 20px var(--color-gold-glow);
}

/* ─── Layout ────────────────────────────────────────────────────────────── */
.gallery {
  max-width: 1400px;
  margin: 0 auto;
  padding: calc(5.5rem + var(--safe-top)) max(var(--space-md), var(--safe-left))
    calc(var(--space-2xl) + var(--safe-bottom)) max(var(--space-md), var(--safe-right));
}

.gallery__header {
  margin-bottom: var(--space-lg);
  display: flex;
  justify-content: center;
}

/* ─── Filters ───────────────────────────────────────────────────────────── */
.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.35rem;
  border: 1px solid var(--color-border);
  background: rgba(20, 20, 20, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.gallery-filters__btn {
  padding: 0.5rem 1rem;
  font-family: var(--font-body);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-body);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: color var(--transition-fast), border-color var(--transition-fast),
    background var(--transition-fast);
  will-change: transform, opacity;
}

.gallery-filters__btn:hover,
.gallery-filters__btn:focus-visible {
  color: var(--color-gold-light);
  border-color: var(--color-border-gold);
}

.gallery-filters__btn.is-active {
  color: var(--color-bg);
  background: linear-gradient(135deg, var(--color-gold-light), var(--color-gold));
  border-color: var(--color-gold);
}

/* ─── Mosaic grid ───────────────────────────────────────────────────────── */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: 140px;
  gap: 0.875rem;
}

.gallery-item {
  margin: 0;
  grid-column: span 4;
  grid-row: span 2;
  will-change: transform, opacity;
}

.gallery-item--tall {
  grid-row: span 3;
}

.gallery-item--wide {
  grid-column: span 8;
  grid-row: span 2;
}

.gallery-item.is-hidden {
  display: none;
}

.gallery-item.is-revealed {
  animation: gallery-reveal 0.8s var(--ease-out-expo) both;
}

@keyframes gallery-reveal {
  from {
    opacity: 0;
    transform: translate3d(0, 20px, 0) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
  }
}

/* ─── Cinematic frame treatment ─────────────────────────────────────────── */
.gallery-item__trigger {
  display: block;
  width: 100%;
  height: 100%;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  will-change: transform, opacity;
}

.gallery-item__frame {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  padding: 0.5rem;
  background: linear-gradient(145deg, #1a1a1a 0%, #0f0f0f 50%, #141414 100%);
  border: 1px solid var(--color-border-gold);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.04),
    0 12px 40px rgba(0, 0, 0, 0.45);
  overflow: hidden;
  transition: border-color var(--transition-med), box-shadow var(--transition-med),
    transform var(--transition-med);
}

/* Gold corner accents */
.gallery-item__frame::before,
.gallery-item__frame::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  z-index: 2;
  pointer-events: none;
  opacity: 0.85;
  transition: opacity var(--transition-fast), width var(--transition-fast), height var(--transition-fast);
}

.gallery-item__frame::before {
  top: 0.35rem;
  left: 0.35rem;
  border-top: 1px solid var(--color-gold);
  border-left: 1px solid var(--color-gold);
}

.gallery-item__frame::after {
  right: 0.35rem;
  bottom: 0.35rem;
  border-bottom: 1px solid var(--color-gold);
  border-right: 1px solid var(--color-gold);
}

.gallery-item__trigger:hover .gallery-item__frame,
.gallery-item__trigger:focus-visible .gallery-item__frame {
  border-color: var(--color-gold);
  box-shadow:
    inset 0 0 0 1px rgba(201, 169, 98, 0.15),
    0 0 48px rgba(201, 169, 98, 0.12),
    0 20px 50px rgba(0, 0, 0, 0.55);
  transform: translate3d(0, -3px, 0);
}

.gallery-item__trigger:hover .gallery-item__frame::before,
.gallery-item__trigger:hover .gallery-item__frame::after,
.gallery-item__trigger:focus-visible .gallery-item__frame::before,
.gallery-item__trigger:focus-visible .gallery-item__frame::after {
  width: 28px;
  height: 28px;
  opacity: 1;
}

.gallery-item__frame img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 100%;
  object-fit: cover;
  object-position: center 22%;
  filter: contrast(1.04) saturate(0.92);
  transition: transform 1s var(--ease-out-expo), filter var(--transition-med);
  will-change: transform;
}

.gallery-item__trigger:hover img {
  transform: scale3d(1.06, 1.06, 1);
  filter: contrast(1.08) saturate(1);
}

/* Hover sheen */
.gallery-item__glow {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    125deg,
    transparent 40%,
    rgba(201, 169, 98, 0.08) 50%,
    transparent 60%
  );
  opacity: 0;
  transition: opacity var(--transition-med);
  pointer-events: none;
  z-index: 1;
}

.gallery-item__trigger:hover .gallery-item__glow {
  opacity: 1;
}

/* ─── Lightbox ──────────────────────────────────────────────────────────── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  background: rgba(10, 10, 10, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.lightbox[hidden] {
  display: none;
}

.lightbox__figure {
  position: relative;
  max-width: min(92vw, 960px);
  max-height: 90vh;
  margin: 0;
  padding: 0.625rem;
  background: linear-gradient(145deg, #161616, #0a0a0a);
  border: 1px solid var(--color-border-gold);
  box-shadow: 0 0 80px rgba(201, 169, 98, 0.08);
}

.lightbox__figure::before,
.lightbox__figure::after {
  content: "";
  position: absolute;
  width: 24px;
  height: 24px;
  z-index: 2;
  pointer-events: none;
}

.lightbox__figure::before {
  top: 0.5rem;
  left: 0.5rem;
  border-top: 1px solid var(--color-gold);
  border-left: 1px solid var(--color-gold);
}

.lightbox__figure::after {
  right: 0.5rem;
  bottom: 0.5rem;
  border-bottom: 1px solid var(--color-gold);
  border-right: 1px solid var(--color-gold);
}

.lightbox__img {
  display: block;
  max-width: 100%;
  max-height: calc(90vh - 2rem);
  width: auto;
  height: auto;
  margin: 0 auto;
  object-fit: contain;
  will-change: transform, opacity;
}

.lightbox__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 2.5rem;
  height: 2.5rem;
  font-size: 1.75rem;
  line-height: 1;
  color: var(--color-heading);
  background: rgba(20, 20, 20, 0.8);
  border: 1px solid var(--color-border-gold);
  cursor: pointer;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.lightbox__close:hover,
.lightbox__close:focus-visible {
  color: var(--color-gold);
  border-color: var(--color-gold);
}

.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 2.75rem;
  height: 2.75rem;
  font-size: 2rem;
  line-height: 1;
  color: var(--color-heading);
  background: rgba(20, 20, 20, 0.75);
  border: 1px solid var(--color-border-gold);
  cursor: pointer;
  transition: color var(--transition-fast), background var(--transition-fast);
  will-change: transform, opacity;
}

.lightbox__nav:hover,
.lightbox__nav:focus-visible {
  color: var(--color-gold);
  background: rgba(30, 30, 30, 0.9);
}

.lightbox__nav--prev {
  left: 1rem;
}

.lightbox__nav--next {
  right: 1rem;
}

/* ─── Responsive ────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .gallery-grid {
    grid-template-columns: repeat(8, 1fr);
    grid-auto-rows: 130px;
    gap: 0.75rem;
  }

  .gallery-item {
    grid-column: span 4;
    grid-row: span 2;
  }

  .gallery-item--wide {
    grid-column: span 8;
  }

  .gallery-item--tall {
    grid-row: span 3;
  }

  .gallery-nav__back,
  .gallery-nav__cta {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }
}

@media (max-width: 900px) {
  .gallery-grid {
    grid-template-columns: repeat(6, 1fr);
    grid-auto-rows: 120px;
  }

  .gallery-item {
    grid-column: span 3;
    grid-row: span 2;
  }

  .gallery-item--wide {
    grid-column: span 6;
  }

  .gallery-item--tall {
    grid-row: span 3;
  }
}

@media (max-width: 600px) {
  .gallery__header {
    margin-bottom: var(--space-md);
  }

  .gallery-filters {
    width: 100%;
    gap: 0.35rem;
    padding: 0.5rem;
  }

  .gallery-filters__btn {
    flex: 1 1 calc(50% - 0.35rem);
    min-height: 44px;
    padding: 0.625rem 0.5rem;
    font-size: 0.5625rem;
    letter-spacing: 0.1em;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 160px;
    gap: 0.625rem;
  }

  .gallery-item,
  .gallery-item--wide {
    grid-column: span 1;
    grid-row: span 2;
  }

  .gallery-item--tall {
    grid-row: span 3;
  }

  .gallery-item__frame {
    padding: 0.35rem;
  }

  .lightbox__nav {
    width: 2.75rem;
    height: 2.75rem;
    font-size: 1.5rem;
  }

  .lightbox__nav--prev {
    left: max(0.75rem, var(--safe-left));
  }

  .lightbox__nav--next {
    right: max(0.75rem, var(--safe-right));
  }

  .lightbox__close {
    top: calc(0.75rem + var(--safe-top));
    right: max(0.75rem, var(--safe-right));
    min-width: 44px;
    min-height: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .gallery-item.is-revealed {
    animation: none;
  }

  .gallery-item__frame img,
  .gallery-item__frame {
    transition: none;
  }
}