@charset "utf-8";
/* CSS Document */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;700&display=swap');

/* base design --------------------------------------------*/

:root {
	--main-font-family: "Noto Sans JP", "Helvetica Neue", "Helvetica", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Arial", "Segoe UI", "Meiryo", sans-serif;
	--body-bg: #eeeeec;
	--main-text-color: #333;
	--sub-text-color: #fff;
	--accent: #7072c1;
	--R18: #e16681;
	/* レイアウトボックスの枠線と背景色 */
	--border: none;
	--box-bg-color: #fff;

}
div.box,
section.box{
	box-shadow: 0px 2px 4px var(--text-color-20);
}

html{
	font-size:1em;
}
body {
	background-color: var(--body-bg);
	color: var(--main-text-color);
	font-family: var(--main-font-family);
	font-feature-settings: "palt" 1;
	font-weight: 400;
	letter-spacing: 1px;
	line-height: 1.8;
	margin: 0 5vw;
	word-break: break-all;
}
header{
	margin: 100px auto;
	max-width: 1200px;
	text-align: center;
}
main{
	margin: 0 auto;
	max-width: 1200px;
}
footer{
	margin: 100px auto 0;
	padding-bottom: 100px;
	max-width: 1200px;
	text-align: center;
}
section{
	margin-bottom: 5rem;
	background:#fff;
}
h1{
	line-height: 1.3;
}
h2{
	margin-bottom: 0.5em;
	line-height: 1.3;
}
h2 span{
	display: inline-block;
	transform: translateY(-3px);
	padding: 0.3em 0.5em;
	font-size: 0.8rem;
	margin-right: 0.5em;
}
h3{
	line-height: 1.3;
	margin-bottom: 0.5em;
}
h3 span{
	padding: 0.1em 0.5em;
	font-size: 0.8rem;
	margin-right: 0.5em;
}
p{
	margin-bottom: 1.8em;
}
div p:last-child,
section p:last-child{
	margin-bottom: 0;
}
ul,ol{
	margin-bottom: 1.8rem;
}
hr{
	margin: 1.3rem 0;
	border-top: 1px dashed var(--main-text-color);
	border-bottom: none;
	height: 0px;
	clear: both;
}

a{
	color: var(--main-text-color);
	text-decoration: underline;
	font-weight: bold;
}
a:hover{
	text-decoration: none;
}
a:hover img{
	opacity: 0.7;
	transition: opacity 0.3s ease-in-out;
}
em{
	font-style: normal;
	font-weight: 400;
	margin: 0 0.3em;
	padding: 0 0.4em;
	background-color: var(--accent);
	color: var(--main-bg-color);
}
small{
	opacity: 0.8;
}



/* named parts --------------------------------------------*/

.border{
	border: 1px solid var(--main-text-color);
}
header span.border{
	display: inline-block;
	border: 1px solid var(--main-text-color);
	padding: 0.5em 1em;
	margin: 1rem 0;
}
h2 span.border{
	margin-right: 8px;
}
ul.gallery {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
	list-style: none;
	margin: 0;
	padding: 0;
	gap: 5px;
}
ul.gallery.capt {
	gap: 1rem 5px;
	padding: 1rem;
}
ul.gallery img{
    aspect-ratio: 1 / 1;
    object-fit: cover;
}
ul.gallery li {
	font-size: 0.85rem;
	text-align: center;
}
span.accent{
	background-color: var(--accent);
	border: 1px solid var(--accent);
	color: var(--main-bg-color);
}
span.R18{
	background-color: var(--R18);
	border: 1px solid var(--R18);
	color: var(--main-bg-color);
}

br.mini{
	display: none;
}

a.btn,
.btn-fit a{
	display: inline-block;
	background-color: var(--main-text-color);
	color: #fff !important;
	font-weight: bold;
	font-size: 0.85rem;
	padding: 0.5em 0.8em;
	margin-right: 5px;
	text-decoration: none;
	text-align: center;
	border-bottom: none;
}
a.btn:hover,
.btn-fit a:hover{
	opacity: 0.7;
	transition: opacity 0.3s ease-in-out;
}
a.btn.large{
	display: block;
	margin-right: 0;
}
div.btn-fit{
	display: flex;
	gap: 5px;
}
div.btn-fit a{
	flex-grow: 1;
	display: block;
	margin-right: 0;
}
a.accent{
	background-color: var(--accent);
}
a.accent:hover{
	opacity: 0.7;
	transition: opacity 0.3s ease-in-out;
}
a.R18{
	background-color: var(--R18);
	color: var(--main-bg-color);
}
a.R18:hover{
	background-color: var(--R18);
	opacity: 0.7;
	transition: opacity 0.3s ease-in-out;
}
footer a.btn{
	padding: 0.3em 0.8em;
}
img.square,
ul.gallery img,
.square img{
	width: 100%;
	object-fit: cover;
	object-position: top;
	aspect-ratio: 1 / 1;
}
img.square-50,
ul.gallery img.square-50,
.square-50 img{
	width: 100%;
	object-fit: cover;
	object-position: 50%;
	aspect-ratio: 1 / 1;
}
img.ogp,
.ogp img{
	width: 100%;
	object-fit: cover;
	object-position: top;
	aspect-ratio: 1.9 / 1;
}
img.ogp-50,
.ogp-50 img{
	width: 100%;
	object-fit: cover;
	object-position: 50%;
	aspect-ratio: 1.9 / 1;
}

.grid{
	display: grid;
	gap: 2rem;
}
.grid1-1{
	grid-template-columns: 1fr 1fr;
}
.grid1-2{
	grid-template-columns: repeat(3, 1fr);
}
.grid1-2 *:first-child{ grid-area: 1 / 1 / 2 / 2; }
.grid1-2 *:last-child { grid-area: 1 / 2 / 2 / 4; }

.grid2-1{
	grid-template-columns: repeat(3, 1fr);
}
.grid2-1 *:first-child{ grid-area: 1 / 1 / 2 / 3; }
.grid2-1 *:last-child { grid-area: 1 / 3 / 2 / 4; }

.grid2{
	grid-template-columns: repeat(2, 1fr);
}
.grid2-book{
	display: grid;
	grid-template-columns: 1fr 2fr;
	gap: 0;
}
.grid3{
	grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));;
}
.grid4{
	grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));;
}
.row-flex{
	display: flex;
	flex-direction: column;
}
.row-flex .inner{
	flex-grow: 1;
}
.left{
	padding: 2rem 0 2rem 2rem;
}
.right{
	padding: 2rem 2rem 2rem 0;
}
.inner{
	padding: 1.3rem 2rem 1.3rem;
}
.mt0{	margin-top: 0; }
.mt05{	margin-top: 0.5rem; }
.mt1{	margin-top: 1rem; }
.mt2{	margin-top: 2rem; }
.mb0{	margin-bottom: 0; }
.mb05{	margin-bottom: 0.5rem; }
.mb1{	margin-bottom: 1rem; }
.mb2{	margin-bottom: 2rem; }
.mb3{	margin-bottom: 3rem; }
.mb4{	margin-bottom: 4rem; }

.pt0{	padding-top: 0; }
.pb0{	padding-bottom: 0; }

.small{
	font-size: 0.85rem;
}
.normal{
	font-size: 1rem;
}

.attention{
	color: #C62828;
}

.booksdate{
	list-style: none;
	margin: 0 0 1.5em 0;
	padding:0;
}
.booksdate li{
	display: inline-block;
}
.booksdate li+li:before{
	content: "/";
	margin-right: 0.3em;
}

#caution{
	padding: 0.4em;
}
#caution br{
	display: none;
}
#caution h2{
	text-align: center;
}
#caution ul{
	list-style: none;
}
.nobg{
	background:transparent !important;
	text-align:center;
}
/* responsive --------------------------------------------*/

@media (max-width: 600px) {
	body{
		font-size: 0.95rem;
	}
	br.mini{
		display: inline;
	}
	ul.gallery{
		grid-template-columns: 1fr 1fr;
	}
	.imgwrap{
		text-align: center;
		padding-top: 1.5rem;
	}
	.left+.imgwrap{
		text-align: center;
		padding: 0 0 1.5rem;
	}
	.imgwrap img{
		width: 60%;
		display: inline;
	}
	.grid{
		display: block;
	}
	.grid div.border{
		margin-bottom: 1rem;
	}
	.grid2-book{
		grid-template-columns: 1fr;
		gap: 0;
	}
	.grid2-book .cover{
		text-align: center;
		padding-top: 1rem;
	}
	.grid2-book img{
		width: 60%;
		display: inline;
	}
	.grid2-book .inner{
		padding: 1rem 0 0;
	}
	.grid2-book .inner h3{
		padding: 0 1.5rem;
	}
	.grid2-book .inner p{
		padding: 0 1.5rem;
	}
	.grid2-book .inner p:last-child{
		margin-bottom: 1.8em;
	}
	.grid2-book .btn-fit{
		font-size: 0.9rem;
	}
	.inner{
		padding: 1rem 1.5rem;
	}
	.left{
		padding: 1.5rem;
	}
	.right{
		padding: 1.5rem;
	}
	.left+.right{
		padding: 0.3rem 1.5em 1.5rem;
	}
	#caution br{
		display: block;
	}
}