/* ==============================================
   LUMIÈRE — GALERÍA CSS
   ============================================== */

.gallery-section {
  padding: 4rem clamp(1.5rem, 5vw, 6rem) 7rem;
  background: var(--black);
}

/* Filtros */
.gallery-filters {
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.gal-filter {
  padding: .55rem 1.4rem;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-body);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  border-radius: 2px;
  cursor: none;
  transition: all var(--transition);
}

.gal-filter:hover,
.gal-filter.active {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--black);
}

/* Grid masonry-like */
.gallery-grid {
  columns: 3;
  column-gap: 12px;
}

.gal-item {
  break-inside: avoid;
  position: relative;
  overflow: hidden;
  margin-bottom: 12px;
  cursor: none;
}

.gal-item img {
  width: 100%;
  display: block;
  transition: transform .6s ease, filter .6s ease;
  filter: brightness(.8) saturate(.85);
}

.gal-item:hover img {
  transform: scale(1.04);
  filter: brightness(.95) saturate(1.05);
}

.gal-item__overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2rem 1rem 1rem;
  background: linear-gradient(to top, rgba(8,8,8,.85), transparent);
  transform: translateY(100%);
  transition: transform var(--transition);
}

.gal-item:hover .gal-item__overlay {
  transform: translateY(0);
}

.gal-item__overlay span {
  display: block;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 300;
  color: var(--white);
}

.gal-item__overlay small {
  font-size: .72rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--gold);
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(8,8,8,.97);
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .4s ease;
  backdrop-filter: blur(8px);
}

.lightbox.active {
  opacity: 1;
  pointer-events: all;
}

.lightbox__img-wrap {
  max-width: 90vw;
  max-height: 85vh;
  position: relative;
}

.lightbox__img-wrap img {
  max-width: 90vw;
  max-height: 80vh;
  object-fit: contain;
  display: block;
  animation: lightboxIn .3s ease both;
}

@keyframes lightboxIn {
  from { opacity: 0; transform: scale(.96); }
  to   { opacity: 1; transform: scale(1); }
}

.lightbox__caption {
  text-align: center;
  margin-top: .75rem;
  font-size: .8rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--gold);
}

.lightbox__close,
.lightbox__prev,
.lightbox__next {
  position: fixed;
  background: none;
  border: 1px solid var(--line);
  color: var(--white);
  font-size: 1.5rem;
  cursor: none;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  border-radius: 2px;
}

.lightbox__close { top: 1.5rem; right: 1.5rem; font-size: 1.8rem; }
.lightbox__prev  { left: 1.5rem; top: 50%; transform: translateY(-50%); }
.lightbox__next  { right: 1.5rem; top: 50%; transform: translateY(-50%); }

.lightbox__close:hover,
.lightbox__prev:hover,
.lightbox__next:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--black);
}

/* Responsive */
@media (max-width: 820px) {
  .gallery-grid { columns: 2; }
  .lightbox__prev { left: .5rem; }
  .lightbox__next { right: .5rem; }
}

@media (max-width: 480px) {
  .gallery-grid { columns: 1; }
}