body{
	min-height: 100svh;
	background: #ECEFF1;
	color: #222;
	font-family: "Noto Sans JP", sans-serif;
}
header{
	display: flex;
	justify-content: center;
	align-items: center;
	padding: 16px;
	background: #20293c;
}
header .logo{
	height: 60px;
}
header .logo img{
	display: block;
	height: 60px;
}
footer{
	position: sticky;
	top: 100svh;
	left: 0;
	padding: 10px 0;
	background: #20293c;
	text-align: center;
	font-size: 12px;
	color: #ddd;
	letter-spacing: 1px;
}

#container{
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 4vw;
}





.tool_category{
	display: flex;
	justify-content: flex-start;
	align-items: center;
	gap: 4px;
	margin: 24px 0 16px;
	padding: 0;
	border-bottom: 2px solid #374768;
	font-size: 24px;
}
.tool_category::before{
	content: "\e5c3";
	margin-top: 4px;
	font-family: 'Material Symbols Outlined';
}
.tool_wrap{
	display: flex;
	justify-content: space-between;
	align-items: flex-start;
	flex-wrap: wrap;
	gap: 16px 0;
}
.tool_wrap::after{
	content: "";
	width: 32%;
	height: auto;
}
.tool_item{
	display: flex;
	justify-content: center;
	align-items: stretch;
	flex-direction: column;
	border-radius: 8px;
	width: 32%;
	height: 120px;
	background: #fff;
	background-size: cover;
	background-position: center;
	box-shadow: 0 0 8px 0 rgba(0,0,0,0.1);
	font-size: 15px;
}
.tool_item h3{
	display: flex;
	justify-content: center;
	align-items: center;
	padding: 6px 4px;
	max-width: 100%;
	width: 100%;
	height: auto;
	background: rgba(0,0,0,0.9);
	color: #fff;
}
@media screen and (max-width: 960px) {
	.tool_item{
		width: 49%;
		height: 100px;
		font-size: 14px;
	}
}
@media screen and (max-width: 640px) {
	.tool_item{
		width: 100%;
		height: 80px;
		font-size: 13px;
	}
}




#tool{
	display: flex;
	justify-content: center;
	align-items: flex-start;
}
#tool #container{
	width: 960px;
}
#tool .instructions{
	padding: 1.5rem 1rem;
	border: 2px solid #20293c;;
	border-radius: 4px;
	background: #ECEFF1;
	font-size: 14px;
}
#tool .instructions ul{
	margin: 8px 0 0;
	font-size: 13px;
}