.nav {
  position: absolute;
  width: 100%;
  z-index: 3;
}
.nav.show {
  position: fixed;
  top: 0;
}
.nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
  overflow: hidden;
  background-color: #fff;
}

.nav li a {
  display: block;
  padding: 20px 20px;
  text-decoration: none;
  color: #fff;
}
.nav li a.first {
  padding-top: 40px;
}
.nav li a.last {
  padding-bottom: 40px;
}

.nav li a:hover,
.nav .menu-btn:hover {
  color: #a7a6ac;
}
/* menu */

.nav .menu {
  clear: both;
  max-height: 0;
  transition: max-height 0.2s ease-out;
  background-color: #200c31;
}

/* menu icon */

.nav .menu-icon {
  z-index: 999;
  cursor: pointer;
  display: inline-block;
  padding: 38px 10px;
  position: absolute;
  right: 10px;
  user-select: none;
}

.nav .menu-icon .navicon {
  background: #a7a6ac;
  display: block;
  height: 4px;
  position: relative;
  transition: background 0.2s ease-out;
  width: 28px;
  border-radius: 20px;
}

.nav .menu-icon .navicon:before,
.nav .menu-icon .navicon:after {
  background: #a7a6ac;
  content: "";
  display: block;
  height: 100%;
  position: absolute;
  transition: all 0.2s ease-out;
  width: 100%;
  border-radius: 20px;
}

.nav .menu-icon .navicon:before {
  top: 10px;
}

.nav .menu-icon .navicon:after {
  top: -10px;
}

/* menu btn */

.nav .menu-btn {
  display: none;
}

.nav .menu-btn:checked ~ .menu {
  max-height: 100%;
}

.nav .menu-btn:checked ~ .menu-icon .navicon {
  background: transparent;
}

.nav .menu-btn:checked ~ .menu-icon .navicon:before {
  transform: rotate(-45deg);
}

.nav .menu-btn:checked ~ .menu-icon .navicon:after {
  transform: rotate(45deg);
}

.nav .menu-btn:checked ~ .menu-icon:not(.steps) .navicon:before,
.nav .menu-btn:checked ~ .menu-icon:not(.steps) .navicon:after {
  top: 0;
}

/* 48em = 768px */

@media (min-width: 639px) {
  .nav {
    background-color: #fff;
    box-shadow: 1px 1px 4px 0 rgba(0, 0, 0, 0.1);
  }
  .nav ul {
    display: flex;
  }
  .nav li a {
    padding: 20px 30px;
    color: #200c31;
    font-size: 0.9rem;
  }
  .nav li a.first {
    padding-top: 20px;
  }
  .nav li a.last {
    padding-bottom: 20px;
  }

  .nav .menu {
    clear: none;
    float: right;
    max-height: none;
    background-color: #fff;
    padding-bottom: 0;
  }
  .nav .menu-icon {
    display: none;
  }
}