/* =============================================
   GALERÍA — Esquivel
   ============================================= */

#galeria {
  background: var(--off-white);
  padding: 5rem 0 4rem;
  position: relative;
  overflow: hidden;
}

#galeria::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(to right, var(--vet-primary), var(--vet-accent), var(--per-gold), var(--per-primary));
}

/* === FILTROS === */
.galeria-filtros {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0 2rem 2.5rem;
  flex-wrap: wrap;
}

.galeria-filtro-btn {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.55rem 1.2rem;
  border-radius: 100px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
  background: transparent;
  color: #888;
  border-color: #ddd;
}

.galeria-filtro-btn:hover {
  color: var(--vet-primary);
  border-color: var(--vet-primary);
}

.galeria-filtro-btn.active--vet {
  background: var(--vet-primary);
  color: var(--white);
  border-color: var(--vet-primary);
}

.galeria-filtro-btn.active--per {
  background: var(--per-primary);
  color: var(--per-gold);
  border-color: var(--per-gold);
}

.galeria-filtro-btn.active--all {
  background: #333;
  color: var(--white);
  border-color: #333;
}

/* === GRID MASONRY === */
.galeria-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 220px;
  gap: 4px;
  padding: 0 3rem 4rem;
  max-width: 1400px;
  margin: 0 auto;
}

.galeria-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-sm);
  cursor: pointer;
  background: #eee;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.galeria-item.hidden {
  opacity: 0;
  transform: scale(0.95);
  pointer-events: none;
  position: absolute;
}

.galeria-item--wide  { grid-column: span 2; }
.galeria-item--tall  { grid-row: span 2; }
.galeria-item--large { grid-column: span 2; grid-row: span 2; }

.galeria-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out), filter 0.4s ease;
  filter: brightness(0.95);
}

.galeria-item:hover img {
  transform: scale(1.06);
  filter: brightness(0.75);
}

.galeria-item__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  padding: 1.2rem;
  background: linear-gradient(to top, rgba(0,0,0,0.65) 0%, transparent 55%);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.galeria-item:hover .galeria-item__overlay { opacity: 1; }

.galeria-item__label {
  font-family: var(--font-ui);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  background: rgba(0,0,0,0.35);
  padding: 0.3rem 0.7rem;
  border-radius: 100px;
}

/* === LIGHTBOX === */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,0.94);
  align-items: center;
  justify-content: center;
  animation: fadeInLightbox 0.3s ease;
}

.lightbox.active { display: flex; }

@keyframes fadeInLightbox {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.lightbox__img-wrap {
  position: relative;
  max-width: 90vw;
  max-height: 88vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox__img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: 0 20px 80px rgba(0,0,0,0.6);
  animation: zoomInLightbox 0.35s var(--ease-out);
}

@keyframes zoomInLightbox {
  from { opacity: 0; transform: scale(0.92); }
  to   { opacity: 1; transform: scale(1); }
}

.lightbox__close {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--white);
  font-size: 1.3rem;
  transition: background 0.2s ease;
  line-height: 1;
}

.lightbox__close:hover { background: rgba(255,255,255,0.2); }

.lightbox__nav {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--white);
  font-size: 1.2rem;
  transition: background 0.2s ease;
}

.lightbox__nav:hover { background: rgba(255,255,255,0.22); }
.lightbox__nav--prev { left: 1.5rem; }
.lightbox__nav--next { right: 1.5rem; }

@media (max-width: 1000px) {
  .galeria-grid {
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 180px;
    padding: 0 1.5rem 3rem;
  }
}

@media (max-width: 680px) {
  .galeria-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 160px;
    gap: 3px;
    padding: 0 1rem 2.5rem;
  }
  .galeria-item--large { grid-column: span 2; }
  .galeria-item--wide  { grid-column: span 2; }
  .galeria-item--tall  { grid-row: span 1; }
}