@import url("https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600&family=Shippori+Mincho:wght@400;500;600&display=swap");

:root {
	--paper: #f3f0e8;
	--ink: #252522;
	--muted: #77746b;
	--line: #cbc6ba;
	--accent: #8e382d;
	--side: clamp(1.5rem, 6vw, 7.5rem);
}

* {
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

body {
	margin: 0;
	background: var(--paper);
	color: var(--ink);
	font-family: "Shippori Mincho", serif;
	font-feature-settings: "palt";
	-webkit-font-smoothing: antialiased;
}

a {
	color: inherit;
	text-decoration: none;
}

.site-header {
	position: absolute;
	z-index: 2;
	top: 0;
	left: 0;
	display: flex;
	width: 100%;
	align-items: center;
	justify-content: space-between;
	padding: clamp(1.5rem, 3vw, 2.75rem) var(--side);
	font-family: "Montserrat", sans-serif;
	font-size: clamp(.62rem, .7vw, .72rem);
	letter-spacing: .16em;
	text-transform: uppercase;
}

.site-header p {
	margin: 0;
	color: var(--muted);
}

.brand {
	font-weight: 600;
}

.hero {
	position: relative;
	display: grid;
	min-height: 100svh;
	align-content: center;
	padding: 9rem var(--side) 7rem;
	overflow: hidden;
}

.hero::after {
	position: absolute;
	right: clamp(-6rem, -3vw, -2rem);
	bottom: 5%;
	width: clamp(12rem, 31vw, 32rem);
	aspect-ratio: 1;
	border: 1px solid var(--line);
	border-radius: 50%;
	content: "";
}

.hero__eyebrow {
	margin-bottom: clamp(1.5rem, 3vw, 2.75rem);
	color: var(--accent);
	font-family: "Montserrat", sans-serif;
	font-size: .68rem;
	letter-spacing: .2em;
}

.hero h1 {
	max-width: 10em;
	margin: 0;
	font-size: clamp(3rem, 8.1vw, 8.4rem);
	font-weight: 400;
	letter-spacing: -.055em;
	line-height: 1.08;
}

.hero__lead {
	max-width: 37em;
	margin: clamp(2.25rem, 5vw, 5rem) 0 0 min(28vw, 24rem);
	color: #56544e;
	font-size: clamp(.9rem, 1.2vw, 1.05rem);
	letter-spacing: .08em;
	line-height: 2.2;
}

.scroll-cue {
	position: absolute;
	bottom: 2.5rem;
	left: var(--side);
	display: flex;
	align-items: center;
	gap: 1rem;
	font-family: "Montserrat", sans-serif;
	font-size: .58rem;
	letter-spacing: .22em;
}

.scroll-cue i {
	display: block;
	width: clamp(3rem, 7vw, 7rem);
	height: 1px;
	background: var(--ink);
	transform-origin: left;
	animation: breathe 2.8s ease-in-out infinite;
}

.books {
	padding: clamp(7rem, 13vw, 13rem) var(--side);
	border-top: 1px solid var(--line);
}

.books--masonry {
	padding-bottom: clamp(8rem, 15vw, 16rem);
}

.section-heading {
	display: grid;
	grid-template-columns: minmax(8rem, 30%) 1fr;
	align-items: baseline;
	margin-bottom: clamp(4rem, 8vw, 8rem);
}

.section-heading p,
.afterword__label {
	margin: 0;
	color: var(--accent);
	font-family: "Montserrat", sans-serif;
	font-size: .65rem;
	letter-spacing: .19em;
}

.section-heading h2 {
	margin: 0;
	font-size: clamp(2rem, 4.6vw, 4.75rem);
	font-weight: 400;
	letter-spacing: -.03em;
}

.book {
	display: grid;
	grid-template-columns: minmax(8rem, 30%) 1fr;
	padding: clamp(2rem, 4vw, 3.75rem) 0;
	border-top: 1px solid var(--line);
	opacity: 1;
	transform: translateY(0);
	transition: opacity .8s ease, transform .8s ease;
}

.js .book:not(.is-visible),
.js [data-reveal]:not(.is-visible) {
	opacity: 0;
	transform: translateY(1.75rem);
}

[data-reveal] {
	opacity: 1;
	transform: translateY(0);
	transition: opacity .85s ease, transform .85s cubic-bezier(.22, 1, .36, 1);
}

.book:last-child {
	border-bottom: 1px solid var(--line);
}

.book__meta {
	display: flex;
	gap: clamp(1rem, 3vw, 3rem);
	padding-top: .45rem;
	color: var(--muted);
	font-family: "Montserrat", sans-serif;
	font-size: .6rem;
	letter-spacing: .15em;
}

.book__meta span:first-child {
	color: var(--accent);
}

.book__body {
	display: grid;
	grid-template-columns: clamp(8.5rem, 15vw, 13rem) minmax(16rem, 1fr);
	gap: clamp(3rem, 8vw, 9rem);
	align-items: start;
}

.book__cover-link {
	display: block;
	width: 100%;
}

.book__cover {
	display: block;
	width: 100%;
	height: auto;
	aspect-ratio: 2 / 3;
	object-fit: cover;
	background: #e9e7e1;
	box-shadow: 0 18px 38px rgba(48, 46, 40, .13), 0 3px 9px rgba(48, 46, 40, .08);
	transition: transform .35s ease, box-shadow .35s ease;
}

.book__cover-link:hover .book__cover {
	transform: translateY(-4px);
	box-shadow: 0 24px 45px rgba(48, 46, 40, .16), 0 5px 12px rgba(48, 46, 40, .09);
}

.book__content {
	padding-top: clamp(.25rem, 1vw, 1rem);
}

.book__credit {
	display: flex;
	flex-wrap: wrap;
	gap: .5rem 1.5rem;
	margin: 0 0 clamp(1.25rem, 2vw, 2rem);
	color: var(--muted);
	font-size: clamp(.72rem, .85vw, .82rem);
	letter-spacing: .06em;
}

.book__credit span::before {
	margin-right: 1.5rem;
	color: var(--line);
	content: "/";
}

.book h3 {
	margin: 0;
	font-size: clamp(1.35rem, 2.5vw, 2.6rem);
	font-weight: 400;
	line-height: 1.55;
}

.book .book__note {
	max-width: 37rem;
	margin: clamp(1.5rem, 3vw, 3rem) 0 0;
	color: #65625a;
	font-size: clamp(.82rem, 1vw, .95rem);
	letter-spacing: .055em;
	line-height: 2;
}

.book__link {
	display: inline-flex;
	align-items: center;
	gap: 2rem;
	margin-top: clamp(1.75rem, 3.5vw, 3.5rem);
	padding-bottom: .65rem;
	border-bottom: 1px solid var(--ink);
	font-family: "Montserrat", "Shippori Mincho", sans-serif;
	font-size: .68rem;
	letter-spacing: .1em;
}

.book__link i {
	font-style: normal;
	transition: transform .25s ease;
}

.book__link:hover i {
	transform: translate(3px, -3px);
}

.cover-grid {
	column-count: 3;
	column-gap: clamp(2.5rem, 7vw, 8rem);
}

.cover-card {
	display: inline-block;
	width: 100%;
	margin: 0 0 clamp(4.5rem, 10vw, 10rem);
	break-inside: avoid;
	vertical-align: top;
}

.cover-card:nth-child(3n + 2) {
	margin-top: clamp(3rem, 8vw, 8rem);
}

.cover-card:nth-child(4n) {
	width: 82%;
	margin-left: 12%;
}

.cover-card a {
	position: relative;
	display: block;
	padding-top: 1.8rem;
}

.cover-card__number {
	position: absolute;
	top: 0;
	left: 0;
	color: var(--accent);
	font-family: "Montserrat", sans-serif;
	font-size: .62rem;
	letter-spacing: .18em;
}

.cover-card img {
	display: block;
	width: 100%;
	height: auto;
	background: #e9e7e1;
	box-shadow: 0 18px 38px rgba(48, 46, 40, .13), 0 3px 9px rgba(48, 46, 40, .08);
	transition: transform .45s ease, box-shadow .45s ease, filter .45s ease;
}

.cover-card a:hover img {
	transform: translateY(-7px);
	box-shadow: 0 28px 52px rgba(48, 46, 40, .18), 0 6px 15px rgba(48, 46, 40, .1);
	filter: saturate(.9);
}

.detail-page {
	min-height: 100svh;
}

.site-header--detail {
	position: relative;
}

.book-detail {
	position: relative;
	display: grid;
	grid-template-columns: minmax(13rem, 28vw) minmax(0, 1fr);
	column-gap: clamp(4rem, 10vw, 12rem);
	padding: clamp(5rem, 10vw, 10rem) var(--side) clamp(8rem, 14vw, 14rem);
	overflow: hidden;
}

.book-detail__number {
	position: absolute;
	top: 0;
	right: var(--side);
	color: rgba(142, 56, 45, .08);
	font-family: "Montserrat", sans-serif;
	font-size: clamp(10rem, 27vw, 28rem);
	font-weight: 500;
	letter-spacing: -.08em;
	line-height: .8;
	pointer-events: none;
}

.book-detail__header {
	position: relative;
	z-index: 1;
	grid-column: 1 / -1;
	display: block;
	margin-bottom: clamp(5rem, 10vw, 10rem);
}

.book-detail__label {
	margin: 0 0 clamp(1.5rem, 3vw, 3rem);
	color: var(--accent);
	font-family: "Montserrat", sans-serif;
	font-size: .65rem;
	letter-spacing: .2em;
}

.book-detail h1 {
	max-width: 18em;
	margin: 0;
	font-size: clamp(1.9rem, 4.5vw, 4.9rem);
	font-weight: 400;
	letter-spacing: -.035em;
	line-height: 1.45;
}

.book-detail__meta {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 0 clamp(2rem, 5vw, 6rem);
	margin: clamp(3rem, 6vw, 6rem) 0 0;
	border-top: 1px solid var(--line);
}

.book-detail__meta div {
	display: grid;
	grid-template-columns: 5.5rem 1fr;
	gap: 1rem;
	padding: 1.1rem 0;
	border-bottom: 1px solid var(--line);
}

.book-detail__meta dt,
.book-detail__meta dd {
	margin: 0;
}

.book-detail__meta dt {
	color: var(--accent);
	font-family: "Montserrat", sans-serif;
	font-size: .58rem;
	letter-spacing: .15em;
}

.book-detail__meta dd {
	color: #5f5c55;
	font-size: clamp(.72rem, .9vw, .85rem);
	letter-spacing: .05em;
	line-height: 1.7;
}

.book-detail__visual {
	position: relative;
	z-index: 1;
	align-self: start;
}

.book-detail__visual img {
	display: block;
	width: 100%;
	height: auto;
	background: #e9e7e1;
	box-shadow: 0 24px 52px rgba(48, 46, 40, .15), 0 5px 12px rgba(48, 46, 40, .08);
}

.book-detail__text {
	position: relative;
	z-index: 1;
	align-self: center;
	max-width: 44rem;
}

.book-detail__lead {
	margin: 0 0 clamp(3rem, 6vw, 6rem);
	font-size: clamp(1.5rem, 3vw, 3.15rem);
	letter-spacing: -.015em;
	line-height: 1.7;
}

.book-detail__body {
	max-width: 38rem;
	margin: 0 auto;
	color: #5e5b54;
	font-size: clamp(.9rem, 1.1vw, 1.05rem);
	letter-spacing: .055em;
	line-height: 2.35;
}

.book-detail__action {
	display: flex;
	justify-content: center;
	margin-top: clamp(4rem, 7vw, 7rem);
}

.book-detail__action a {
	display: inline-flex;
	min-width: min(100%, 18rem);
	align-items: center;
	justify-content: center;
	gap: 2.5rem;
	padding: 1.25rem 2rem;
	border: 1px solid var(--ink);
	font-family: "Montserrat", "Shippori Mincho", sans-serif;
	font-size: .68rem;
	letter-spacing: .12em;
	transition: background .3s ease, color .3s ease;
}

.book-detail__action a:hover {
	background: var(--ink);
	color: var(--paper);
}

.book-detail__action i {
	font-style: normal;
}

.book-pagination {
	display: grid;
	grid-template-columns: 1fr auto 1fr;
	align-items: center;
	margin: 0 var(--side);
	padding: clamp(2.5rem, 5vw, 5rem) 0;
	border-top: 1px solid var(--line);
	font-family: "Montserrat", sans-serif;
}

.book-pagination__side a {
	display: inline-flex;
	align-items: center;
	gap: 1.5rem;
	font-size: .6rem;
	letter-spacing: .16em;
}

.book-pagination__side small {
	color: var(--accent);
	font-size: .6rem;
}

.book-pagination__side--next {
	text-align: right;
}

.book-pagination__top {
	padding: .75rem 1.25rem;
	border: 1px solid var(--line);
	font-size: .6rem;
	letter-spacing: .18em;
}

.afterword {
	display: grid;
	grid-template-columns: minmax(8rem, 30%) 1fr;
	padding: clamp(7rem, 14vw, 15rem) var(--side);
}

.afterword h2 {
	margin: -.5rem 0 clamp(2rem, 4vw, 4rem);
	font-size: clamp(2.2rem, 5vw, 5.4rem);
	font-weight: 400;
	letter-spacing: -.035em;
	line-height: 1.45;
}

.afterword div > p {
	max-width: 38rem;
	margin: 0 0 0 min(17vw, 13rem);
	color: #5e5b54;
	font-size: clamp(.86rem, 1.1vw, 1rem);
	letter-spacing: .06em;
	line-height: 2.2;
}

footer {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin: 0 var(--side);
	padding: 2rem 0 2.5rem;
	border-top: 1px solid var(--line);
	color: var(--muted);
	font-family: "Montserrat", sans-serif;
	font-size: .58rem;
	letter-spacing: .16em;
}

footer p {
	margin: 0;
}

@keyframes breathe {
	0%, 100% { transform: scaleX(.4); opacity: .35; }
	50% { transform: scaleX(1); opacity: 1; }
}

@media (max-width: 720px) {
	.site-header p {
		display: none;
	}

	.hero {
		min-height: 92svh;
		padding-top: 8rem;
	}

	.hero::after {
		bottom: 13%;
		opacity: .7;
	}

	.hero__lead {
		margin-left: 0;
	}

	.section-heading,
	.book,
	.afterword {
		grid-template-columns: 1fr;
	}

	.cover-grid {
		column-count: 2;
		column-gap: clamp(1.5rem, 8vw, 3rem);
	}

	.cover-card {
		margin-bottom: clamp(3rem, 14vw, 6rem);
	}

	.cover-card:nth-child(3n + 2) {
		margin-top: 0;
	}

	.cover-card:nth-child(even) {
		margin-top: clamp(2rem, 10vw, 4rem);
	}

	.cover-card:nth-child(4n) {
		width: 100%;
		margin-left: 0;
	}

	.section-heading,
	.afterword {
		gap: 1.5rem;
	}

	.book {
		gap: 1.5rem;
	}

	.book__body {
		grid-template-columns: minmax(6.75rem, 28vw) 1fr;
		gap: clamp(1.5rem, 7vw, 3rem);
	}

	.book__credit {
		display: block;
	}

	.book__credit span {
		display: block;
		margin-top: .35rem;
	}

	.book__credit span::before {
		display: none;
	}

	.book .book__note {
		margin-top: 1.25rem;
	}

	.book__link {
		margin-top: 1.5rem;
	}

	.afterword div > p {
		margin-left: 0;
	}

	.book-detail {
		grid-template-columns: 1fr;
		padding-top: 4rem;
	}

	.book-detail__number {
		top: 4rem;
		right: 1rem;
	}

	.book-detail__header {
		margin-bottom: 4rem;
	}

	.book-detail__label {
		margin: 0 0 1.5rem;
	}

	.book-detail__meta {
		grid-template-columns: 1fr;
		margin-top: 3rem;
	}

	.book-detail__visual {
		width: min(72vw, 18rem);
		margin: 0 auto 4rem;
	}

	.book-detail__lead {
		margin-bottom: 2.5rem;
	}

	.book-pagination {
		grid-template-columns: 1fr auto 1fr;
	}

	.book-pagination__side span {
		display: none;
	}
}

@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
	.scroll-cue i { animation: none; }
	.book,
	[data-reveal] { transition: none; }
}