@import url('https://fonts.googleapis.com/css?family=Coda|Fira+Mono:500|Share+Tech+Mono');
/*font-family: 'Fira Mono', monospace;
font-family: 'Share Tech Mono', monospace;
font-family: 'Coda', cursive;*/

html {
  font-size: 87.5%;
}

body {
	font-family:-apple-system, BlinkMacSystemFont, "Helvetica Neue", "Segoe UI","Noto Sans Japanese","ヒラギノ角ゴ ProN W3", Meiryo, sans-serif;
}

#wrapper {
	display:flex;
	flex-direction:row;
}


/*//////////////// navigation ////////////////////*/

nav {
	order: 1;
	flex: 0 1 30%;
	padding:20px;
}
nav h2 {
	position: relative;
	padding:0.8rem;
	margin:0;
	background:#000;
	color:#fff;
	font-size:1.1rem;
	font-weight:normal;
	line-height:1;
}
nav h2::after {
	position: absolute;
	content: '';
	top: 100%;
	left: 20px;
	border: 10px solid transparent;
	border-top: 10px solid #000;
	width: 0;
	height: 0;
}
nav ul {
	margin:20px 0 20px;
	padding:0;
	list-style:none;
}
nav li {
	font-family: 'Coda', cursive;
	/*font-family: 'Fira Mono', monospace;*/
	position:relative;
	padding: 0 0 0 20px;
	margin: 7px 0 7px 0px;
	font-weight: bold;
	font-size:14px;
	line-height: 30px;
	border-bottom: dashed 1px #000;
 }
nav li:before {
	counter-increment: list;
	content: "";
	display: block;
	position: absolute;
	left: 0px;
	height: 0;
	width: 0;
	border-top: 4px solid transparent;
	border-bottom: 4px solid transparent;
	border-left: 7px solid #000;
	top: 50%;
	-moz-transform: translateY(-50%);
	-webkit-transform: translateY(-50%);
	-o-transform: translateY(-50%);
	-ms-transform: translateY(-50%);
	transform: translateY(-50%);
}
nav li a {
	text-decoration:none;
	color:#000;
	display:block;
	width:100%;
}
nav li a:hover {
	opacity:0.5;
	filter:alpha(opacity=50);
	-moz-opacity: 0.5;
    transition: opacity 0.7s;
}


/*//////////////// section ////////////////////*/


section {
	order: 2;
	display:flex;
	flex: 1 1 auto;
	flex-wrap:wrap;
	justify-content:center;
	align-content:space-between;
	margin-left:50px;
}

.item {
	width:350px;
	padding-right:20px;
	padding-bottom:20px;
}
.item dt {
	font-weight:bold;
	padding-bottom:5px;
}
.item dd {
	color:#555;
	padding-bottom:5px;
}