/*
green: #3FAF82

*/
/*
.box {
  border-radius: 2px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  background: #3faf82;
  box-shadow: 1px 2px 10px 0px rgba(0,0,0,0.3);
}*/

header .btn:not(.btn-blue):not(.btn-orange){
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width:32px;
  cursor: pointer;
}

#btn_nav span {
  display: block;
  width: 100%;
  height: 2px;
  background: #000;
  transition: all .3s;
  position: relative;
}

#btn_nav span + span {
  margin-top: 8px;
}
#btn_nav.active span + span{
  margin-top:13.5px;
}
#btn_nav.active span {
	 background: #fff;
}

#btn_nav.active span:nth-child(1) {
  animation: ease .7s top forwards;
}

#btn_nav.not-active span:nth-child(1) {
  animation: ease .7s top-2 forwards;
}

#btn_nav.active span:nth-child(2) {
  animation: ease .7s scaled forwards;
}

#btn_nav.not-active span:nth-child(2) {
  animation: ease .7s scaled-2 forwards;
}

#btn_nav.active span:nth-child(3) {
  animation: ease .7s bottom forwards;
}

#btn_nav.not-active span:nth-child(3) {
  animation: ease .7s bottom-2 forwards;
}

@keyframes top {
  0% {
    top: 0;
    transform: rotate(0);
  }
  50% {
    top: 22px;
    transform: rotate(0);
  }
  100% {
    top: 9.5px;
    transform: rotate(45deg);
  }
}

@keyframes top-2 {
  0% {
    top: 22px;
    transform: rotate(45deg);
  }
  50% {
    top: 22px;
    transform: rotate(0deg);
  }
  100% {
    top: 0;
    transform: rotate(0deg);
  }
}

@keyframes bottom {
  0% {
    bottom: 0;
    transform: rotate(0);
  }
  50% {
    bottom: 22px;
    transform: rotate(0);
  }
  100% {
    bottom: 22px;
    transform: rotate(135deg);
  }
}

@keyframes bottom-2 {
  0% {
    bottom: 22px;
    transform: rotate(135deg);
  }
  50% {
    bottom: 22px;
    transform: rotate(0);
  }
  100% {
    bottom: 0;
    transform: rotate(0);
  }
}

@keyframes scaled {
  50% {
    transform: scale(0);
  }
  100% {
    transform: scale(0);
  }
}

@keyframes scaled-2 {
  0% {
    transform: scale(0);
  }
  50% {
    transform: scale(0);
  }
  100% {
    transform: scale(1);
  }
}