body {
  perspective: 2000px;
  perspective-origin: center;
  overflow: hidden;
  background-color: #222222;
  width: 100vw;
  height: 100vh;
}

body nav {
  background: none;
  position: relative;
}

body nav .button {
  width: 60px;
  height: 60px;
  margin: 0;
  background-color: black;
  border-radius: 50%;
  display: inline-block;
  cursor: pointer;
}

body nav .button:nth-child(2) {
  margin-left: 30px;
}

body nav #buttons .buttons-navi {
  z-index: 100;
  position: absolute;
  top: 10px;
  margin-left: 10px;
}

body nav #buttons .buttons-navi .button {
  width: 40px;
  height: 40px;
}

body nav #buttons .buttons-navi .button span {
  color: white;
  font-size: 25px;
  font-weight: 500;
  position: absolute;
}

body nav #buttons .buttons-navi .button .button-next {
  top: 8px;
  left: 83px;
}

body nav #buttons .buttons-navi .button .button-prev {
  top: 8px;
  left: 8px;
}

body nav #buttons .buttons-menu {
  z-index: 100;
  position: absolute;
  top: 10px;
  right: 10px;
}

body nav #buttons .buttons-menu .button-wrapper {
  position: relative;
  right: -10px;
  top: 15px;
}

body nav #buttons .buttons-menu .button-wrapper span {
  display: block;
  width: 40px;
  height: 5px;
  background-color: white;
  border-radius: 5px;
  position: absolute;
}

body nav #buttons .buttons-menu .button-wrapper span:nth-child(1) {
  top: 0px;
}

body nav #buttons .buttons-menu .button-wrapper span:nth-child(2) {
  top: 12px;
}

body nav #buttons .buttons-menu .button-wrapper span:nth-child(3) {
  top: 24px;
}

body nav #menu {
  display: none;
  position: absolute;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  color: white;
  transform-origin: 0% 0%;
  z-index: 99;
  overflow: hidden;
}

body nav #menu video {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -1;
}

body nav #menu ul {
  list-style: none;
  width: 100vw;
  height: 100vh;
  transform-origin: center;
  transform: translateY(25vh);
  padding-left: 0;
  position: relative;
  z-index: 1;
}

body nav #menu ul li {
  display: none;
  text-align: center;
  text-transform: uppercase;
  transform-origin: left;
  margin: 0 auto;
  font-size: 40px;
  transform: translateX(-100vw);
  cursor: pointer;
}

#pages {
  transform-style: preserve-3d;
  transform-origin: 50% 50% -50vw;
  height: 100%;
  width: 100%;
  position: relative;
}

#pages section {
  position: absolute;
  width: 100%;
  height: 100%;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  overflow: hidden;
  font-size: 50px;
  margin: auto 0;
  display: flex;
  align-items: center;
  align-content: center;
}

#pages #main {
  background-color: rgba(255, 217, 0, 0.8);
}

#pages #about {
  background-color: rgba(255, 69, 0, 0.8);
  transform-origin: center;
  transform: translateZ(-100vw) rotateY(-180deg);
}

#pages #work {
  transform: translateX(50vw) translateZ(-50vw) rotateY(90deg);
  background-color: rgba(212, 255, 0, 0.8);
}

#pages #contact {
  transform: translateX(-50vw) translateZ(-50vw) rotateY(-90deg);
  background-color: rgba(170, 179, 179, 0.8);
}