.service-image.service-image-slider {
  position: relative;
}

.service-image.service-image-slider img {
  display: block;
}

.service-image-slider__btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);

  width: 42px;
  height: 42px;
  border-radius: 999px;

  border: 0;
  cursor: pointer;

  display: grid;
  place-items: center;

  background: rgba(0, 0, 0, 0.45);
  color: #fff;

  font-size: 26px;
  line-height: 1;

  z-index: 2;

  /* Hidden by default; shown on hover/focus-within */
  opacity: 0;
  pointer-events: none;
  transition: opacity 150ms ease;
}

.service-image.service-image-slider:hover .service-image-slider__btn,
.service-image.service-image-slider:focus-within .service-image-slider__btn {
  opacity: 1;
  pointer-events: auto;
}

.service-image-slider__btn--prev {
  left: 10px;
}

.service-image-slider__btn--next {
  right: 10px;
}

.service-image-slider__btn:hover {
  background: rgba(0, 0, 0, 0.6);
}

.service-image-slider__btn:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

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