@charset "utf-8";

* {
	font-size: 14px;
}

body:last-child {
	margin-bottom: 1.4em;
}

header {
	box-sizing: border-box;
	position: fixed;
	left: 0;
	width: 100%;
	height: 3.4em;
	background-color: white;
	border-bottom: 1px solid #d8e6e0;
}

header + * {
	padding-top: 3.6em;
}

div#main {

}

div#main > h1 {
	font-size: 64px;
	margin: 0.8em auto;
	text-align: center;
}

div#main > div#contents {
	margin: 2em 6em;
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	align-items: flex-start;
}

div#main > div#contents > div.content-area {
	box-sizing: border-box;
	width: 24em;
	margin: 1em 2em;
	padding: 1.2em 1.6em;
	background-color: white;
	border: 1px solid #abb8b3;
	border-radius: 10px;
	transition: background-color .2s;
	cursor: pointer;
}

div#main > div#contents > div.content-area:hover {
	background-color: #fbfbfb;
}

div#main > div#contents > div.content-area:active {
	background-color: #f6f6f6;
}

div#main > div#contents > div.content-area > div.content-title {
	font-size: 24px;
	margin-bottom: 0.4em;
	padding-bottom: 0.2em;
	line-height: 36px;
	border-bottom: 1px solid #abb8b3;
}

div#main > div#contents > div.content-area > div.content-description {
	font-size: 16px;
}

@media screen and (max-width: 1024px) {
	div#main > div#contents {
		margin: 0;
	}

	div#main > div#contents > div.content-area {
		margin: 0.8em 1em;
	}
}

footer {
	padding: 1em 0;
	text-align: center;
}