div.menu-btn.open {
  position: relative;
  display: inline-block;
  width: 30px;
  height: 10px;
  cursor: pointer;
  transition: all 0.3s;
  backface-visibility: hidden;
  transform: translateZ(0);
  z-index: 1000; }
  @media (max-width: 576px) {
    div.menu-btn.open {
      width: 30px; } }
  div.menu-btn.open span {
    display: block;
    width: 100%;
    height: 10px;
    position: relative;
    transition: all 0.3s; }
    div.menu-btn.open span:before {
      display: block;
      width: 100%;
      height: 1px;
      content: " ";
      position: absolute;
      left: 0;
      background-color: #000;
      top: 0px;
      transition: all 0.3s; }
    div.menu-btn.open span:after {
      display: block;
      width: 100%;
      height: 1px;
      content: " ";
      position: absolute;
      left: 0;
      background-color: #000;
      top: 10px;
      transition: all 0.3s; }
  @media (min-width: 1024px) {
    div.menu-btn.open:hover span:before {
      top: 5px; }
    div.menu-btn.open:hover span:after {
      top: 5px; } }
  div.menu-btn.open.close span:before {
    transform: rotate(-45deg);
    top: 5px; }
  div.menu-btn.open.close span:after {
    transform: rotate(45deg);
    top: 5px; }
  @media (min-width: 1024px) {
    div.menu-btn.open.close:hover span:before {
      transform: rotate(-30deg); }
    div.menu-btn.open.close:hover span:after {
      transform: rotate(30deg); } }

nav.gmenu {
  position: fixed;
  top: 0;
  right: 0;
  width: 100vw;
  height: 100vh;
  z-index: 900;
  overflow-y: scroll;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  opacity: 0;
  background-color: #fff;
  transition: opacity .3s linear; }
  nav.gmenu.is-active {
    pointer-events: auto;
    opacity: 1;
    transition: opacity .3s linear; }
  nav.gmenu .nav_inner {
    width: 100%;
    height: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: left;
    align-items: center; }
  nav.gmenu .wrap {
    display: flex; }
  nav.gmenu ul {
    text-align: left;
    padding: 0 0 0 10vw;
    display: inline-block; }
    @media (max-width: 576px) {
      nav.gmenu ul {
        text-align: left; } }
    nav.gmenu ul li {
      margin-bottom: 3em; }
      nav.gmenu ul li a {
        font-size: 2rem;
        position: relative; }
        @media (max-width: 576px) {
          nav.gmenu ul li a {
            font-size: 1.6rem; } }
        nav.gmenu ul li a:before {
          content: "";
          display: block;
          position: absolute;
          bottom: 0;
          left: 50%;
          width: 0;
          height: 1px;
          background-color: #000;
          transition: all 0.5s; }
        nav.gmenu ul li a:hover:before {
          left: 0;
          width: 100%; }