/* Posuvník před/po – dva obrázky nad sebou a průhledný input range. */

.posuvnik {
  position: relative;
  overflow: hidden;
  border-radius: 0.75rem;
  background: #292524;
  user-select: none;
  touch-action: none;
}

.posuvnik .vrstva {
  position: absolute;
  inset: 0;
}

.posuvnik .po {
  clip-path: inset(0 0 0 var(--x, 50%));
}

.posuvnik img {
  display: block;
  width: 100%;
  height: auto;
}

.posuvnik input[type="range"] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: ew-resize;
}

/* Ruka uprostřed posuvníku */
.posuvnik .rucicka {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--x, 50%);
  width: 2px;
  background: rgba(255, 255, 255, 0.85);
  pointer-events: none;
}

.posuvnik .rucicka::after {
  content: "⟨⟩";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(255, 255, 255, 0.9);
  color: #292524;
  font-size: 0.9rem;
  line-height: 1;
  padding: 0.35rem 0.5rem;
  border-radius: 9999px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}