.hamburger .btn,
#gnb > .btn {
  cursor: pointer;
  position: relative;
  width: 30px;
  transform: scale(1);
  align-self: center;
}
.hamburger span,
#gnb > .btn span {
  display: block;
  width: 100%;
  border-radius: 3px;
  height: 8px;
  background: var(--primary-color);
  transition: all 0.3s;
  position: relative;

  height: 3px;
}

.hamburger span + span,
#gnb > .btn span + span {
  margin-top: 4px;
}

.hamburger .btn:hover span,
#gnb > .btn:hover span {
  background: var(--secondary-color);
}

.hamburger .active span:nth-child(1) {
  animation: ease 0.7s top forwards;
}

.hamburger .not-active span:nth-child(1) {
  animation: ease 0.7s top-2 forwards;
}

.hamburger .active span:nth-child(2) {
  animation: ease 0.7s scaled forwards;
}

.hamburger .not-active span:nth-child(2) {
  animation: ease 0.7s scaled-2 forwards;
}

.hamburger .active span:nth-child(3) {
  animation: ease 0.7s bottom forwards;
}

.hamburger not-active span:nth-child(3) {
  animation: ease 0.7s bottom-2 forwards;
}

@keyframes top {
  0% {
    top: 0;
    transform: rotate(0);
  }
  50% {
    top: 7px;
    transform: rotate(0);
  }
  100% {
    top: 7px;
    transform: rotate(45deg);
  }
}

@keyframes top-2 {
  0% {
    top: 7px;
    transform: rotate(45deg);
  }
  50% {
    top: 7px;
    transform: rotate(0deg);
  }
  100% {
    top: 0;
    transform: rotate(0deg);
  }
}

@keyframes bottom {
  0% {
    bottom: 0;
    transform: rotate(0);
  }
  50% {
    bottom: 7px;
    transform: rotate(0);
  }
  100% {
    bottom: 7px;
    transform: rotate(135deg);
  }
}

@keyframes bottom-2 {
  0% {
    bottom: 7px;
    transform: rotate(135deg);
  }
  50% {
    bottom: 7px;
    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);
  }
}