@charset "utf-8";
* {
  box-sizing: border-box;
}
*:before, *:after {
  padding: 0;
  margin: 0;
}

body {
  font-family: Lato, Arial, "Hiragino Kaku Gothic Pro W3", Meiryo, sans-serif;
  background-color: #333;
  color: #efefef;
  text-align: center;
  margin: 0;
  padding: 0;
}
body a, body a:visited {
  color: #efefef;
  text-decoration: none;
}
body a:hover {
	color: #ccc;
}

.container {
  position: relative;
  margin-top: 0px;
}

.content {
  margin: 0 auto;
  padding: 5% 40px;
}

.hidden_menu, .hidden_menu ul {
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.hidden_menu ul li, .menu_underline, .header_bar::before {
  transition: all 0.3s ease;
}

.humberger, .hidden_menu, .hidden_menu ul, .header_bar, .container {
  transition: all 0.5s ease;
}

.hidden_menu ul li::before, .header_bar::before, .container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

#humberger_check {
  width: 0;
  height: 0;
  opacity: 0;
  visibility: hidden;
}
#humberger_check:checked + .humberger {
  transform: translateY(160px);
}
#humberger_check:checked + .humberger span {
  background-color: transparent;
}
#humberger_check:checked + .humberger span::before {
  top: 2px;
  transition: top 0.1s cubic-bezier(0.33333, 0, 0.66667, 0.33333) 0.15s, transform 0.13s cubic-bezier(0.215, 0.61, 0.355, 1) 0.22s;
  -webkit-transform: translate3d(0, 10px, 0) rotate(45deg);
  transform: translate3d(0, 10px, 0) rotate(45deg);
}
#humberger_check:checked + .humberger span::after {
  top: 6px;
  transition: top 0.2s cubic-bezier(0.33333, 0, 0.66667, 0.33333), transform 0.13s cubic-bezier(0.215, 0.61, 0.355, 1) 0.22s;
  -webkit-transform: translate3d(0, 6px, 0) rotate(-45deg);
  transform: translate3d(0, 6px, 0) rotate(-45deg);
}
#humberger_check:checked ~ .header_bar,
#humberger_check:checked ~ .container {
  -webkit-transform: translateY(160px);
  transform: translateY(160px);
}
#humberger_check:checked ~ .hidden_menu {
  -webkit-transform: translateY(0);
  transform: translateY(0);
}
#humberger_check:checked ~ .hidden_menu ul {
  opacity: 1;
  -webkit-transform: rotateX(0);
  transform: rotateX(0);
}

.humberger {
  position: fixed;
  top: 20px;
  right: 5vw;
  width: 40px;
  height: 40px;
  cursor: pointer;
  z-index: 3;
}
.humberger span {
  position: absolute;
  top: 6px;
  left: 50%;
  width: 30px;
  height: 4px;
  margin: 0 auto auto -15px;
  background-color: #fff;
  transition: background-color .1s linear .13s;
}
.humberger span::before, .humberger span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 4px;
  background-color: #fff;
}
.humberger span::before {
  top: 12px;
  transition: top 0.1s cubic-bezier(0.33333, 0.66667, 0.66667, 1) 0.2s, transform 0.13s cubic-bezier(0.55, 0.055, 0.675, 0.19);
}
.humberger span::after {
  top: 24px;
  transition: top 0.2s cubic-bezier(0.33333, 0.66667, 0.66667, 1) 0.2s, transform 0.13s cubic-bezier(0.55, 0.055, 0.675, 0.19);
}

.hidden_menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 160px;
  -webkit-perspective: 1600px;
  perspective: 1600px;
  -webkit-transform: translateY(-100%);
  transform: translateY(-100%);
  background-color: #222;
  z-index: 3;
  transform: translateY(-100%);
}
.hidden_menu ul {
  list-style: none;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  opacity: 0;
  background-color: rgba(255, 255, 255, 0.08);
  -webkit-transform-origin: center bottom;
  transform-origin: center bottom;
  -webkit-transform: rotateX(90deg);
  transform: rotateX(90deg);
}
.hidden_menu ul li {
  position: relative;
  display: table;
  width: 20%;
  height: 100%;
  float: left;
  font-size: 13px;
}
.hidden_menu ul li::before {
  opacity: 0;
  transform: scale(0);
}
.hidden_menu ul li:nth-child(1)::before {
  background-color: #FA3687;
}
.hidden_menu ul li:nth-child(2)::before {
  background-color: #21D7A8;
}
.hidden_menu ul li:nth-child(3)::before {
  background-color: #1E9ED4;
}
.hidden_menu ul li:nth-child(4)::before {
  background-color: #B0D44A;
}
.hidden_menu ul li:nth-child(5)::before {
  background-color: #A865D5;
}
.hidden_menu ul li.selected::before {
  animation: scaling .4s linear;
}
.hidden_menu ul li:hover {
  background-color: rgba(0, 0, 0, 0.14);
}
.hidden_menu ul li a {
  position: relative;
  display: table-cell;
  vertical-align: middle;
}
.hidden_menu ul li i {
  display: block;
  margin-bottom: 15px;
  font-size: 25px;
}

.menu_underline {
	position: absolute;
	bottom: -2px;
	height: 0;
	width: 20%;
	background-color: #fff;
}
.menu_underline.visible {
  height: 4px;
}

.header_bar {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 80px;
	padding: 0 5vw;
	text-align: left;
	border-bottom: 1px solid rgba(255, 255, 255, 0.2);
	z-index: 2;
}
.header_bar::before {
  background-color: rgba(0, 0, 0, 0.84);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.26);
  opacity: 0;
}
.header_bar.show-bg::before {
  opacity: 1;
}
.header_bar h1 {
	position: relative;
	margin: 26px 0 0;
	font-size: 30px;
	display: inline-block;
	color: #FFF;
	transform: skew(-10deg);
}


.container::before {
  position: fixed;
  background-color: rgba(0, 0, 0, 0);
}
.content {
  position: ;
  margin: ;
  padding: ;
  height: ;
}


@keyframes scaling {
  50% {
    opacity: .28;
    transform: scale(0.5);
  }
  100% {
    opacity: 0;
    transform: scale(1.05);
  }
}
@media (max-width: 680px) {
  #humberger_check:checked + .humberger,
  #humberger_check:checked ~ .header_bar,
  #humberger_check:checked ~ .container {
    transform: translateY(300px);
  }

  .hidden_menu {
    height: 300px;
  }
  .hidden_menu ul li {
    float: none;
    width: 100%;
    height: 60px;
    font-size: 12px;
  }
  .hidden_menu ul li i {
    display: inline;
    font-size: 18px;
    margin-right: 15px;
  }

  .menu_underline {
    width: 100%;
    left: 0;
    bottom: auto;
  }
}