*,
*::after,
*::before {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --unhover-border-color: rgba(0, 0, 0, 0.5);
  --unhover-text-color: rgba(255, 255, 255, 0.5);
  --unhover-background-color: rgba(0, 0, 0, 0.5);

  --hover-border-color: rgba(0, 0, 0, 0.8);
  --hover-text-color: rgba(255, 255, 255, 0.8);
  --hover-background-color: rgba(0, 0, 0, 0.8);

  --transition-delay: 0.5s;
}

.carousel {
  top: 60px;
  position: relative;
  width: 100vw;
  height: 100vh;
}

.slider-button {
  font-size: 1rem;
  padding: 5px 1rem;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: var(--unhover-background-color);
  border: 2px solid var(--unhover-border-color);
  color: var(--unhover-text-color);
  z-index: 10;
  cursor: pointer;
}

.slider-button-prev {
  left: 2rem;
}

.slider-button-next {
  right: 2rem;
}

.slider-button:hover,
.slider-button:focus {
  background-color: var(--hover-background-color);
  border: 2px solid var(--hover-border-color);
  color: var(--hover-text-color);
}

ul.slides {
  list-style-type: none;
  height: 100%;
  width: 100%;
}

li.slide {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  overflow: hidden;
  opacity: 0;
  transition: opacity var(--transition-delay);
  transition-delay: var(--transition-delay);
}

.slide > img {
  height: 100%;
  width: 100%;
  object-fit: cover;
  object-position: center;
}

li.slide[data-active-slide] {
  opacity: 1;
}

.slides-circles {
  display: flex;
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  overflow: hidden;
}

.slides-circles > div {
  height: 20px;
  width: 20px;
  margin: 10px;
  border: 3px solid white;
  border-radius: 50%;
  transition: background-color var(--transition-delay);
  transition-delay: var(--transition-delay);
}

.slides-circles > div[data-active-slide] {
  background-color: white;
}