.gallery-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 50px;
}
.gallery-filters button {
  padding: 10px 22px;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--color-grey-100);
  border-radius: 30px;
  background: transparent;
  color: var(--color-grey-700);
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
.gallery-filters button:hover { border-color: var(--color-gold); color: var(--color-gold-dark); }
.gallery-filters button.is-active {
  background: var(--color-black); border-color: var(--color-black); color: var(--color-white);
}

.masonry {
  position: relative;
  width: 100%;
}

.masonry__item {
  position: absolute;
  top: 0;
  left: 0;
  overflow: hidden;
  cursor: zoom-in;
  border-radius: 2px;
  background: var(--color-grey-100);
  transition: transform var(--dur-med) var(--ease-out), left var(--dur-med) var(--ease-out), top var(--dur-med) var(--ease-out), width var(--dur-med) var(--ease-out);
  will-change: transform;
}
.masonry__item img {
  width: 100%;
  display: block;
  transition: transform 0.7s var(--ease-out), filter var(--dur-med) var(--ease-out);
}
.masonry__item:hover img { transform: scale(1.04); }
.masonry__item.is-hidden { display: none; }

/* Team portraits mixed into the clinic gallery: kept uncropped, but toned
   down slightly so their differing proportions don't compete visually
   with the treatment/suite shots. Full colour and size return on hover. */
.masonry__item--muted img {
  filter: saturate(0.94) brightness(0.99);
}
.masonry__item--muted:hover img { filter: none; }
.masonry__item::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 60%, rgba(0,0,0,0.5));
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-out);
}
.masonry__item:hover::after { opacity: 1; }
.masonry__caption {
  position: absolute;
  left: 16px; bottom: 14px;
  color: #fff;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  z-index: 1;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.masonry__item:hover .masonry__caption { opacity: 1; transform: translateY(0); }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(8,8,8,0.94);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-med) var(--ease-out);
}
.lightbox.is-open { opacity: 1; pointer-events: auto; }
.lightbox img {
  max-width: min(90vw, 900px);
  max-height: 84vh;
  object-fit: contain;
  transform: scale(0.96);
  transition: transform var(--dur-med) var(--ease-out);
  box-shadow: 0 30px 80px rgba(0,0,0,0.5);
}
.lightbox.is-open img { transform: scale(1); }
.lightbox__close, .lightbox__nav {
  position: absolute;
  background: none;
  border: 1px solid rgba(255,255,255,0.3);
  color: #fff;
  border-radius: 50%;
  width: 46px; height: 46px;
  display: flex; align-items: center; justify-content: center;
  transition: border-color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.lightbox__close:hover, .lightbox__nav:hover { border-color: var(--color-gold); background: rgba(165,145,113,0.15); }
.lightbox__close { top: 28px; right: 28px; }
.lightbox__prev { left: 28px; top: 50%; transform: translateY(-50%); }
.lightbox__next { right: 28px; top: 50%; transform: translateY(-50%); }
@media (max-width: 700px) {
  .lightbox__prev, .lightbox__next { width: 38px; height: 38px; }
}