@charset "utf-8";
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;700&display=swap');

*,*::before,*::after{box-sizing:border-box}*{margin:0}body{font-feature-settings:"palt" 1;overflow-wrap: anywhere;word-break: normal;line-break: strict;text-size-adjust:100%;-webkit-text-size-adjust:100%}picture,video,canvas{display:block;max-width:100%}input,button,textarea,select{font:inherit}img{max-width:100%;height:auto;vertical-align:middle}nav ul{list-style-type:none;padding: 0}:where(:any-link) {color:currentColor;text-decoration-skip-ink:auto;text-decoration-color:color-mix(in srgb, currentcolor 30%, transparent);text-underline-offset: 0.2em}summary,button{cursor:pointer}em{font-style:normal}

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

:root {
	--body-bg: #eeeeec;
	--main-text-color: #333;
	--sub-text-color: #fff;
	--accent: #539fbe;
	--R18: #db553f;

	--border: none;
	--box-bg-color: #fff;
	--main-font-family: "Noto Sans JP", "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Meiryo", sans-serif;

	/* 色のバリエーションを自動作成 */
	--text-color-20: color-mix(in srgb, var(--main-text-color) 20%, transparent);
	--text-color-30: color-mix(in srgb, var(--main-text-color) 30%, transparent);
	--text-color-50: color-mix(in srgb, var(--main-text-color) 50%, transparent);
	--text-color-80: color-mix(in srgb, var(--main-text-color) 80%, transparent);
	--accent-50: color-mix(in srgb, var(--accent) 50%, transparent);
}
html{
	font-size: 100%;
}
body{
	background-color: var(--os2);
	color: var(--main-text-color);
	font-family: var(--main-font-family);
	font-weight: 400;
	letter-spacing: 0.05em;
	line-height: 1.8;
	margin: 0 5vw;
}
body::before{
	background: var(--body-bg);
	background-size: cover;
	content: "";
	inset: 0;
	position: fixed;
	z-index: -1;
}
::marker{
	color: var(--accent);
}
header{
	margin: 100px auto;
	max-width: 1200px;
	text-align: center;
}
main{
	margin: 0 auto;
	max-width: 1200px;
}
footer{
	margin: 100px auto 0;
	max-width: 1200px;
	padding-bottom: 100px;
	text-align: center;
}
section{
	margin-bottom: 5rem;
}
h1{
	line-height: 1.3;
}
h2{
	line-height: 1.3;
	margin-bottom: 0.5em;
}
h2 span{
	display: inline-block;
	font-size: 0.8rem;
	margin-right: 0.5em;
	padding: 0.3em 0.5em;
	transform: translateY(-3px);
}
h3{
	line-height: 1.3;
	margin-bottom: 0.2em;
}
h3 span{
	font-size: 0.8rem;
	margin-right: 0.5em;
	padding: 0.1em 0.5em;
}
p{
	margin-bottom: 1.8em;
}
div p:last-child,
section p:last-child{
	margin-bottom: 0;
}
ul,ol{
	margin-bottom: 1.8em;
	padding-left: 1.8em;
}
hr{
	border-bottom: none;
	border-top: 1px dashed var(--main-text-color);
	clear: both;
	height: 0px;
	margin: 1.3rem 0;
}
em{
	font-weight: bold;
	margin-inline: 0.2em;
	text-decoration: underline var(--accent-50) 0.5em;
	text-decoration-skip-ink: none;
	text-underline-offset: -0.2em;
}
small{
	opacity: 0.8;
}
code{
	background-color: var(--text-color-20);
	font-family: ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;
	letter-spacing: 0;
	margin-inline: 0.2em;
	padding-inline: 0.3em;
}


/* links --------------------------------------------*/
a{
	font-weight: bold;
}
a:hover{
	text-decoration: none;
}
a:hover img{
	opacity: 0.7;
	transition: opacity 0.3s ease-in-out;
}
a.btn,
.btn-fit a{
	background-color: var(--main-text-color);
	border-bottom: none;
	color: var(--sub-text-color);
	display: inline-block;
	font-size: 0.9rem;
	font-weight: bold;
	margin: 5px 5px 5px 0;
	padding: 0.4em 0.8em;
	text-align: center;
	text-decoration: none;
}
a.btn:hover,
.btn-fit a:hover{
	opacity: 0.7;
	transition: opacity 0.3s ease-in-out;
}
div.btn-fit{
	display: flex;
	gap: 5px;
	a{
		display: block;
		flex-grow: 1;
		margin: 0;
		padding-inline: 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);
}
a.R18:hover{
	background-color: var(--R18);
	opacity: 0.7;
	transition: opacity 0.3s ease-in-out;
}
footer a.btn{
	padding: 0.2em 0.8em;
}


/* named parts --------------------------------------------*/
.small{
	font-size: 0.85em;
}
.normal{
	font-size: 1rem;
}
.box{
	background-color: var(--box-bg-color);
	border: var(--border);
}
span.border{
	border: 1px solid var(--main-text-color);
	margin-right: 8px;
}
header span.border{
	display: inline-block;
	margin: 1rem 0;
	padding: 0.5em 1em;
}
span.accent{
	background-color: var(--accent);
	border: 1px solid var(--accent);
	color: var(--sub-text-color);
}
span.R18{
	background-color: var(--R18);
	border: 1px solid var(--R18);
	color: var(--sub-text-color);
}
br.smp{
	display: none;
}
.nallow{
	margin-inline: auto;
	max-width: 600px;
}
ul.gallery {
	display: grid;
	gap: 1rem 5px;
	grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
	list-style: none;
	margin: 0;
	padding: 2rem;
	li {
		font-size: 0.85rem;
		text-align: center;
	}
	img{
		aspect-ratio: 1;
		object-fit: cover;
	}
}
img.square,
ul.gallery img,
.square img{
	aspect-ratio: 1 / 1;
	object-fit: cover;
	object-position: top;
	width: 100%;
}
img.square-50,
ul.gallery img.square-50,
.square-50 img{
	aspect-ratio: 1 / 1;
	object-fit: cover;
	object-position: 50%;
	width: 100%;
}
img.ogp,
.ogp img{
	aspect-ratio: 1.9 / 1;
	object-fit: cover;
	object-position: top;
	width: 100%;
}
img.ogp-50,
.ogp-50 img{
	aspect-ratio: 1.9 / 1;
	object-fit: cover;
	object-position: 50%;
	width: 100%;
}
img.emoji{
	height: 1em;
	margin: 0 3px 3px;
	vertical-align: middle;
	width: 1em;
}


/* grid --------------------------------------------*/
.grid{
	display: grid;
	gap: 2rem;
}
.grid1-2{
	gap: 0;
	grid-template-columns: 1fr 2fr;
}
.grid2-1{
	gap: 0;
	grid-template-columns: 2fr 1fr;
}
.grid2{
	grid-template-columns: repeat(2, 1fr);
}
.grid2-book{
	display: grid;
	gap: 0;
	grid-template-columns: 1fr 2fr;
}
.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;
}
.inner{
	padding: 2rem;
}
.grid2.box > .inner:first-child{
	padding-right: 0;
}
.grid2.box > .inner:last-child{
	padding-left: 0;
}
.grid4 .inner{
	padding: 1rem;
}


/* baguetteBox customization --------------------------------------------*/
.baguetteBox-button,.baguetteBox-button:hover,.baguetteBox-button:focus,
#baguetteBox-overlay .full-image figcaption{
	background-color: transparent;
}
.baguetteBox-button#close-button{
	display: none;
}


/* utility --------------------------------------------*/
.mt0{	margin-top: 0 !important; }
.mt05{	margin-top: 0.5rem !important; }
.mt1{	margin-top: 1rem !important; }
.mt2{	margin-top: 2rem !important; }
.mb0{	margin-bottom: 0 !important; }
.mb05{	margin-bottom: 0.5rem !important; }
.mb1{	margin-bottom: 1rem !important; }
.mb2{	margin-bottom: 2rem !important; }
.mb3{	margin-bottom: 3rem !important; }
.mb4{	margin-bottom: 4rem !important; }


/* responsive --------------------------------------------*/
@media (max-width: 600px) {
	html{
		font-size: 95%;
	}
	br.smp{
		display: inline;
	}
	.cover{
		padding-block: 1.5rem;
		text-align: center;
		img{
			width: 60%;
			display: inline;
		}
	}
	ul.gallery{
		grid-template-columns: 1fr 1fr;
		padding: 1rem;
	}
	.grid{
		grid-template-columns: 1fr;
	}
	.grid4{
		gap: 1rem;
		grid-template-columns: 1fr 1fr;
	}
	.grid2-book{
		grid-template-columns: 1fr;
		.inner{
			padding: 0;
		}
		.inner h3{
			padding: 0 1.5rem;
		}
		.inner p{
			padding: 0 1.5rem;
		}
	}
	.inner,
	.grid2.box .inner:first-child{
		padding: 1.5em;
	}
	.grid2.box .inner:last-child{
		padding: 0 1.5em 1.5em;
	}
}