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

:root {
  --index: calc(1vw + 1vh);
  --button-color: rgba(255, 255, 255, 0.9);
  --swiper-theme-color: #4b4d53;
  --swiper-navigation-size: 30px;
  --swiper-navigation-sides-offset: 40px;
  --swiper-pagination-bottom: 20px;
  --swiper-pagination-color: #afb3c0;
  --swiper-pagination-bullet-inactive-color: #36373c;
  --swiper-pagination-bullet-inactive-opacity: 1;
}

body {
  background: #000;
  color: #fff;
}

.slider {
  height: 100vh;
  box-shadow: inset 0 50px 50px #000, inset 0 -50px 50px #000;
}

.slider .slide {
  display: flex;
  align-items: center;
  justify-content: center;
}

.slide__content {
  text-align: center;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.swiper-slide-active .slide__content {
  opacity: 1;
}

.slide__content h2 {
  font-size: calc(var(--index) * 4);
  text-transform: uppercase;
  letter-spacing: calc(var(--index) * 1.65);
  margin-bottom: calc(var(--index) * 2.3);
  position: relative;
}

.slide__content h2::after {
  content: "";
  height: 1px;
  width: 20%;
  background-color: rgba(255, 255, 255, 0.35);
  position: absolute;
  left: 40%;
  bottom: calc(var(--index) * -1);
}

.slide__content p {
  font-size: calc(var(--index) * 0.9);
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.8);
  letter-spacing: calc(var(--index) * 0.25);
  margin-bottom: calc(var(--index) * 2.6);
}

button {
  padding: 9px 40px;
  font-size: 15.25px;
  border-radius: 10em;
  background-color: transparent;
  border: 1px solid var(--button-color);
  color: var(--button-color);
  text-transform: uppercase;
  letter-spacing: 0.2rem;
}

.slider-navigation > * {
  border: 1.5px solid var(--swiper-theme-color);
  border-radius: 10em;
  width: 55px;
  height: 55px;
}

.video-backgroud {
  position: fixed;
  width: 94%;
  height: 94%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.7;
}