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

html {
  font-size: 62.5%;
}

body {
  font-family: "Roboto", sans-serif;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background: url("img/aurora.jpg");
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
  transition: 0.3s ease-in;
}

body::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.7);
}

/* NAVIGATION */

.navigation {
  position: absolute;
  top: 0;
  background: #712727;
}

/* PROJECT CONTAINER */

.project-container {
  box-shadow: 0 0.3rem 0.6rem rgba(0, 0, 0, 0.16),
    0 0.3rem 0.6rem rgba(0, 0, 0, 0.23);
  height: 70vh;
  width: 70vw;
  position: relative;
  overflow: hidden;
  border-radius: 1rem;
}

/* SLIDER */

.slide {
  opacity: 0;
  height: 100%;
  width: 100%;
  background-position: center center;
  background-size: cover;
  position: absolute;
  z-index: 1;
  transition: 0.3s ease-in;
}

.slide.active {
  opacity: 1;
}

/* SLIDER NAVIGATION */

button {
  position: fixed;
  z-index: 99;
  background-color: transparent;
  padding: 1rem 1.5rem;
  border: 0.2rem solid steelblue;
  border-radius: 0.5rem;
  cursor: pointer;
  top: 50%;
  transform: translateY(-50%);
}

.left-arrow {
  left: calc(15vw - 6.5rem);
}

.right-arrow {
  right: calc(15vw - 6.5rem);
}

i {
  color: steelblue;
  font-size: 2rem;
}

/* MOBILE */

@media screen and (max-width: 700px) {
  .project-container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    margin-top: 10rem;
    height: 50vh;
    box-shadow: none;
    border-radius: 0;
  }

  .slide {
    height: 70%;
    border-radius: 0.5rem;
  }

  button {
    position: absolute;
    z-index: 99;
    width: 100%;
    top: initial;
    transform: initial;
  }
  .left-arrow {
    top: 0;
    left: 0;
  }
  .right-arrow {
    bottom: 0;
    right: 0;
  }

  button i::before {
    text-transform: uppercase;
    font-family: "Roboto", sans-serif;
    font-weight: 500;
    color: white;
  }

  .right-arrow i::before {
    content: "Next";
  }

  .left-arrow i::before {
    content: "Previous";
  }
}