.slider {
  position: relative;
  width: 100%;
  max-width: 1600px;
  margin: auto;
  overflow: hidden;
}

.slides {
  position: relative;
}

.slide {
  width: 100%;
  display: none;
}

.slide.active {
  display: block;
}

button.prev, button.next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0,0,0,0.5);
  color: white;
  border: none;
  padding: 10px;
  cursor: pointer;
}

button.prev { left: 10px; }
button.next { right: 10px; }

button:hover {
  background: rgba(0,0,0,0.8);
}