body {
	margin: 0;
	padding: 0;
}
ul {
	list-style: none;
}

/* ++++ トグルボタン ++++ */

#navTgl {
	display: none;
}
label {
	cursor: pointer;
	position: fixed;
	top: 0;
	right: 0;
}
.open {
	z-index: 5;
	width: 60px;
	height: 48px;
	transition: background .5s, transform .5s cubic-bezier(0.76, 0.52, 0.29, 1.25);
}
.open::before,
.open::after {
	content: "";
}
.open span,
.open::before,
.open::after {
	content: "";
	position: absolute;
	top: calc(50% - 1px);
	left: 30%;
	width: 40%;
	border-bottom: 2px solid #333;
	transition: transform .5s cubic-bezier(0.76, 0.52, 0.29, 1.25);
}
.open::before {
	transform: translateY(-8px);
}
.open::after {
	transform: translateY(8px);
}
.close {
	z-index: 4;
	width: 100%;
	height: 100%;
	pointer-events: none;
	transition: background .5s;
}
#navTgl:checked + .open span {
	transform: scaleX(0);
}
#navTgl:checked + .open::before {
	transform: rotate(45deg);
}
#navTgl:checked + .open::after {
	transform: rotate(-45deg);
}
#navTgl:checked ~ .close {
	background: rgba(0,0,0,.7);
}

/* ++++ ドロワーメニュー ++++ */
.menu {
	z-index: 4;
	position: fixed;
	overflow: auto;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	padding: 6%;
	margin: 0;
	box-sizing: border-box;
	transform: translateX(-100%);
	transition: transform .5s cubic-bezier(0.33, 1.01, 0.33, 0.97);
}
.menu h2,
.menu a {
	color: white;
}
.menu h2 {
	text-align: center;
}
.menu ul {
	padding: 0;
	text-align: center;
	width: 350px;
	margin: 0 auto;
}
.menu li {
	font-size: 1.8rem;
	line-height: 1.4;
}
.menu a {
	display: block;
	padding: 1em 2em;
	text-decoration: inherit;
	transition: background .5s;
}
.menu li:hover:after {
	display: block;
	content: '';
	width: 100px;
	margin: 0 auto;
	border-bottom: 1px solid #fff;
}
#navTgl:checked ~ .menu {
	transform: none;
}