.universal-slider {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.slider-track {
  display: flex;
  transition: transform 0.5s ease-out;
}

.slide {
  min-width: 100%;
}

.slider-prev, .slider-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0,0,0,0.7);
  color: white;
  border: none;
  padding: 12px 16px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 18px;
  z-index: 10;
}

.slider-prev { left: 15px; }
.slider-next { right: 15px; }