/* Verbeterde overlay */
#slider {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  transition: opacity 0.3s ease-in-out;
}

#slider.active {
  display: flex;
  opacity: 1;
}

/* Centraal uitlijnen van de afbeelding */
#slider-images {
  max-width: 90%;
  max-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

#slider-images img {
  max-width: 80%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: 10px;
  box-shadow: 0px 4px 10px rgba(255, 255, 255, 0.1);
  transition: transform 0.3s ease;
}

#slider-images img:hover {
  transform: scale(1.05);
}

/* Navigatieknoppen */
#prev-slide,
#next-slide {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 40px;
  color: #fff;
  background: rgba(0, 0, 0, 0.5);
  padding: 10px 15px;
  border-radius: 50%;
  cursor: pointer;
  transition: background 0.3s ease;
}

#prev-slide:hover,
#next-slide:hover {
  background: rgba(0, 0, 0, 0.8);
}

#prev-slide {
  left: 20px;
}
#next-slide {
  right: 20px;
}

/* Sluitknop */
#close-slide {
  position: absolute;
  top: 15px;
  right: 15px;
  font-size: 30px;
  color: #fff;
  background: rgba(0, 0, 0, 0.5);
  padding: 5px 10px;
  border-radius: 50%;
  cursor: pointer;
  transition: background 0.3s ease;
}

#close-slide:hover {
  background: rgba(0, 0, 0, 0.8);
}