/* Оверлей лайтбокса для кликабельных картинок (.image--zoom). */
.site-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 4vmin;
  background: rgba(0, 0, 0, 0.85);
  cursor: zoom-out;
}
.site-lightbox--open { display: flex; }
.site-lightbox__img {
  max-width: 95vw;
  max-height: 92vh;
  object-fit: contain;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  cursor: default;
}
.site-lightbox__close {
  position: fixed;
  top: 16px;
  right: 24px;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  font-size: 30px;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s;
}
.site-lightbox__close:hover { background: rgba(255, 255, 255, 0.3); }