#menuToggle {
  display: block;
  z-index: 1;
  user-select: none;
}

#menuToggle a {
  text-decoration: none;
  color: #fff;

  transition: color 0.3s ease;
}

#menuToggle a:hover {
  color: tomato;
}

#menuToggle input {
  display: block;
  width: 40px;
  height: 32px;
  position: absolute;
  top: 5px;
  right: 7px;
  cursor: pointer;
  opacity: 0;
  z-index: 2;
}

#menuToggle span {
  display: block;
  width: 33px;
  height: 4px;
  margin-bottom: 5px;
  position: relative;
  background: #fff;
  border-radius: 3px;
  z-index: 1;
  transform-origin: 4px 0px;
  transition: transform 0.5s cubic-bezier(0.77, 0.2, 0.05, 1),
    background 0.5s cubic-bezier(0.77, 0.2, 0.05, 1), opacity 0.55s ease;
}

#menuToggle span:first-child {
  transform-origin: 0% 0%;
}

#menuToggle span:nth-last-child(2) {
  transform-origin: 0% 100%;
}

#menuToggle input:checked ~ span {
  opacity: 1;
  transform: rotate(45deg) translate(-2px, -1px);
  background: #fff;
}

#menuToggle input:checked ~ span:nth-last-child(3) {
  opacity: 0;
  transform: rotate(0deg) scale(0.2, 0.2);
}

#menuToggle input:checked ~ span:nth-last-child(2) {
  transform: rotate(-45deg) translate(0, -1px);
}

#menu {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  padding: 50px;
  padding-top: 125px;
  background: #051c2d;
  list-style-type: none;
  -webkit-font-smoothing: antialiased;
  transform-origin: 0% 0%;
  transform: translate(-100%, 0);
  transition: transform 0.5s cubic-bezier(0.77, 0.2, 0.05, 1);
}

#menu li {
  padding: 10px 0;
  font-size: 22px;
}

#menuToggle input:checked ~ ul {
  transform: none;
}

section {
  display: none;
}

section.active {
  display: block;
}