/* Prekrytie galérie — spoločné pre všetky ukážky, zámerne neutrálne. */
.lb-open { overflow: hidden; }

.lb {
  position: fixed; inset: 0; z-index: 1000;
  display: grid;
  grid-template-columns: 72px 1fr 72px;
  grid-template-rows: auto 1fr;
  align-items: center;
  background: rgba(6, 8, 11, .95);
  backdrop-filter: blur(6px);
}
.lb[hidden] { display: none; }

.lb__bar {
  grid-column: 1 / -1;
  display: flex; align-items: center; gap: 16px;
  padding: 16px clamp(16px, 3vw, 28px);
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}
.lb__title {
  font-size: .78rem; letter-spacing: .12em; text-transform: uppercase;
  color: #E9ECF0;
}
.lb__count {
  font-size: .72rem; letter-spacing: .12em;
  color: rgba(233, 236, 240, .55); margin-left: auto;
}

.lb__btn {
  border: 1px solid rgba(255, 255, 255, .18);
  background: rgba(255, 255, 255, .04);
  color: #E9ECF0;
  border-radius: 3px;
  cursor: pointer;
  transition: background .18s, border-color .18s;
}
.lb__btn:hover { background: rgba(255, 255, 255, .12); border-color: rgba(255, 255, 255, .4); }
.lb__btn:focus-visible { outline: 2px solid #B98BFF; outline-offset: 2px; }
.lb__close { width: 34px; height: 34px; font-size: .9rem; line-height: 1; flex: none; }
.lb__nav { width: 44px; height: 64px; font-size: 1.6rem; line-height: 1; justify-self: center; }
.lb__nav[hidden] { display: none; }

.lb__stage {
  grid-column: 2; grid-row: 2;
  display: grid; place-items: center;
  padding: clamp(12px, 2.5vw, 28px);
  min-height: 0; height: 100%;
}
.lb__img {
  max-width: 100%;
  max-height: calc(100vh - 128px);
  width: auto; height: auto;
  object-fit: contain;
  border: 1px solid rgba(255, 255, 255, .14);
}
/* prepínač ukážok nesmie prekrývať galériu */
.lb-open .onvi-switch { display: none; }

@media (max-width: 700px) {
  .lb { grid-template-columns: 1fr; grid-template-rows: auto 1fr auto; }
  .lb__img { max-height: calc(100vh - 200px); }
  .lb__stage { grid-column: 1; grid-row: 2; }
  .lb__prev { grid-row: 3; justify-self: start; margin: 0 0 18px 16px; }
  .lb__next { grid-row: 3; justify-self: end; margin: 0 16px 18px 0; }
  .lb__nav { width: 56px; height: 48px; }
}

@media (prefers-reduced-motion: reduce) {
  .lb__btn { transition: none; }
}