.gallery-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.9);
  z-index: 99999;
  align-items: center;
  justify-content: center;
}
.gallery-overlay img {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: 8px;
  object-fit: contain;
}
.gallery-close {
  position: absolute;
  top: 20px;
  right: 24px;
  background: transparent;
  border: 2px solid rgba(255,255,255,.6);
  color: #fff;
  font-size: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .2s;
}
.gallery-close:hover { background: #fff; color: #000; }