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

html {
  font-size: 62.5%;
}

.container {
  width: 100%;
  height: 100vh;
  display: flex;
  align-items: center;
  background-color: #030a1b;
  perspective: 40rem;
}

.menu {
  width: 100%;
  padding: 0 25rem;
  display: flex;
  justify-content: space-evenly;
  transform-style: preserve-3d;
}

.change.menu .menu-item {
  transform: rotateY(0) rotateX(0) translateX(0) translateY(0) translateZ(0);
  opacity: 1;
}

.menu-item {
  width: 20rem;
  height: 15rem;
  background-color: #5588dd;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 1rem;
  cursor: pointer;
  box-shadow: 0 0 2rem rgba(100, 100, 255, 0.4);
}

.menu-item:hover {
  background-color: #ccccff;
  box-shadow: 0 0 3rem rgba(100, 100, 255, 0.6);
}

.menu-item:not(.center-item) {
  opacity: 0;
}

.menu-item:nth-child(1) {
  transform: rotateY(-70deg) rotateX(20deg) translateX(-50rem)
    translateY(-15rem) translateZ(-50rem);
  transition: transform 1.2s ease-in, opacity 1s ease-in, background-color 0.5s,
    box-shadow 0.5s;
}
.menu-item:nth-child(2) {
  transform: rotateY(-70deg) rotateX(20deg) translateX(-20rem) translateY(-5rem)
    translateZ(-20rem);
  transition: transform 1s ease-in, opacity 1s ease-in, background-color 0.5s,
    box-shadow 0.5s;
}
.menu-item:nth-child(3) {
  transform: rotateX(20deg);
  transition: transform 1s ease-in, background-color 0.5s, box-shadow 0.5s;
}

.menu-item:nth-child(4) {
  transform: rotateY(70deg) rotateX(20deg) translateX(20rem) translateY(-5rem)
    translateZ(-20rem);
  transition: transform 1s ease-in, opacity 1s ease-in, background-color 0.5s,
    box-shadow 0.5s;
}

.menu-item:nth-child(5) {
  transform: rotateY(70deg) rotateX(20deg) translateX(50rem) translateY(-15rem)
    translateZ(-50rem);
  transition: transform 1.2s ease-in, opacity 1s ease-in, background-color 0.5s,
    box-shadow 0.5s;
}

.menu-item i {
  font-size: 7rem;
  color: #222;
  transition: color 0.5s;
}

.menu-item:hover i {
  color: #6464ff;
}