/**
 * Arche Nexus Hub front page — version 2.
 * All visual rules are scoped to .arche-home to protect existing content.
 */

.arche-home {
	--arche-bg: #f7f6f2;
	--arche-bg-deep: #eeece5;
	--arche-ink: #111111;
	--arche-muted: #67655f;
	--arche-line: #cbc9c1;
	--arche-side: clamp(1.5rem, 5.5vw, 6.5rem);
	--arche-max: 106rem;
	margin: 0;
	background: var(--arche-bg);
	color: var(--arche-ink);
	font-family: "Helvetica Neue", "Hiragino Kaku Gothic ProN", "Yu Gothic", YuGothic, sans-serif;
	font-size: clamp(1rem, 0.96rem + 0.15vw, 1.125rem);
	font-weight: 400;
	line-height: 2;
	letter-spacing: 0.04em;
	-webkit-font-smoothing: antialiased;
}

.arche-home *,
.arche-home *::before,
.arche-home *::after {
	box-sizing: border-box;
}

.arche-home h1,
.arche-home h2,
.arche-home h3,
.arche-home p,
.arche-home ol {
	margin-top: 0;
}

.arche-home a {
	color: inherit;
	text-decoration-color: currentColor;
	text-decoration-thickness: 1px;
	text-underline-offset: 0.45em;
	transition: color 180ms ease, opacity 180ms ease;
}

.arche-home a:hover {
	color: var(--arche-muted);
}

.arche-home a:focus-visible {
	outline: 2px solid currentColor;
	outline-offset: 0.45rem;
}

.arche-home__inner {
	width: min(100%, var(--arche-max));
	margin-inline: auto;
	padding-inline: var(--arche-side);
}

.arche-home__hero {
	min-height: clamp(43rem, 94svh, 68rem);
	border-bottom: 1px solid var(--arche-line);
}

.arche-home__hero-inner {
	display: grid;
	min-height: inherit;
	grid-template-rows: auto 1fr auto;
	padding-top: clamp(2.75rem, 7vh, 6rem);
	padding-bottom: clamp(2.5rem, 6vh, 5rem);
}

.arche-home__hero-meta,
.arche-home__hero-foot,
.arche-home__section-header,
.arche-home__contact-meta {
	display: flex;
	justify-content: space-between;
	gap: 2rem;
}

.arche-home__brand,
.arche-home__label,
.arche-home__stage {
	margin-bottom: 0;
	font-size: clamp(0.6875rem, 0.66rem + 0.08vw, 0.75rem);
	font-weight: 500;
	letter-spacing: 0.2em;
	line-height: 1.5;
}

.arche-home__stage {
	color: var(--arche-muted);
	letter-spacing: 0.14em;
}

.arche-home__hero-copy {
	display: flex;
	align-items: center;
	width: min(100%, 91rem);
	padding-block: clamp(5rem, 10vh, 9rem);
}

.arche-home__hero-title {
	max-width: 13em;
	margin: 0;
	font-family: "Yu Mincho", YuMincho, "Hiragino Mincho ProN", serif;
	font-size: clamp(3rem, 6.7vw, 7.25rem);
	font-weight: 400;
	line-height: 1.42;
	letter-spacing: 0.065em;
}

.arche-home__hero-foot {
	align-items: flex-end;
}

.arche-home__hero-subtitle {
	margin-bottom: 0;
	color: var(--arche-muted);
	font-family: Georgia, "Times New Roman", serif;
	font-size: clamp(1rem, 1.25vw, 1.25rem);
	font-style: italic;
	letter-spacing: 0.035em;
}

.arche-home__scroll-link {
	font-size: 0.6875rem;
	letter-spacing: 0.12em;
	text-decoration: none;
	text-transform: uppercase;
}

.arche-home__scroll-link span {
	display: inline-block;
	margin-left: 0.75rem;
}

.arche-home__section {
	border-bottom: 1px solid var(--arche-line);
	scroll-margin-top: 5rem;
}

.arche-home__philosophy {
	padding-block: clamp(8rem, 16vw, 16rem) clamp(10rem, 19vw, 19rem);
}

.arche-home__section-header {
	align-items: flex-start;
	margin-bottom: clamp(6rem, 12vw, 12rem);
}

.arche-home__philosophy-grid {
	display: grid;
	grid-template-columns: minmax(0, 2.25fr) minmax(18rem, 1fr);
	gap: clamp(5rem, 12vw, 14rem);
	align-items: end;
}

.arche-home__heading {
	max-width: 18em;
	margin-bottom: 0;
	font-family: "Yu Mincho", YuMincho, "Hiragino Mincho ProN", serif;
	font-size: clamp(2.25rem, 4.45vw, 4.75rem);
	font-weight: 400;
	line-height: 1.62;
	letter-spacing: 0.055em;
}

.arche-home__heading--philosophy {
	margin-left: clamp(0rem, 4vw, 5rem);
}

.arche-home__prose {
	max-width: 40rem;
	margin-bottom: 0;
	line-height: 2.25;
}

.arche-home__prose p {
	margin-bottom: 2.25rem;
}

.arche-home__prose p:last-child {
	margin-bottom: 0;
}

.arche-home__expressions {
	padding-block: clamp(8rem, 14vw, 14rem) clamp(9rem, 16vw, 16rem);
}

.arche-home__section-header--expressions {
	display: grid;
	grid-template-columns: minmax(0, 2fr) minmax(15rem, 0.8fr);
	align-items: end;
	margin-bottom: clamp(7rem, 14vw, 14rem);
}

.arche-home__display-heading {
	margin: clamp(2rem, 4vw, 4rem) 0 0;
	font-family: Georgia, "Times New Roman", serif;
	font-size: clamp(4rem, 9.5vw, 10rem);
	font-weight: 400;
	line-height: 0.86;
	letter-spacing: -0.055em;
}

.arche-home__section-note {
	display: grid;
	gap: clamp(3rem, 7vw, 7rem);
	padding-bottom: 0.4em;
}

.arche-home__section-note p:last-child {
	margin-bottom: 0;
	line-height: 2;
}

.arche-home__expression-list,
.arche-home__approach-list {
	margin-bottom: 0;
	padding: 0;
	list-style: none;
}

.arche-home__expression-item {
	display: grid;
	grid-template-columns: minmax(3rem, 0.35fr) minmax(13rem, 1.2fr) minmax(18rem, 1.15fr);
	gap: clamp(2rem, 5vw, 6rem);
	align-items: baseline;
	padding-block: clamp(2.75rem, 5vw, 5rem);
	border-top: 1px solid var(--arche-ink);
}

.arche-home__expression-item:nth-child(2) {
	padding-left: clamp(0rem, 5vw, 6rem);
}

.arche-home__expression-item:last-child {
	border-bottom: 1px solid var(--arche-ink);
}

.arche-home__number {
	color: var(--arche-muted);
	font-size: 0.6875rem;
	letter-spacing: 0.14em;
}

.arche-home__expression-item h3 {
	margin-bottom: 0;
	font-family: Georgia, "Times New Roman", serif;
	font-size: clamp(2.75rem, 6vw, 6.25rem);
	font-weight: 400;
	line-height: 1;
	letter-spacing: -0.035em;
}

.arche-home__expression-item p {
	margin-bottom: 0;
	line-height: 2;
}

.arche-home__approach {
	padding-block: clamp(9rem, 18vw, 18rem) clamp(8rem, 14vw, 14rem);
}

.arche-home__section-header--approach {
	align-items: flex-end;
	margin-bottom: clamp(6rem, 11vw, 11rem);
}

.arche-home__section-header--approach .arche-home__label {
	margin-bottom: clamp(2.5rem, 5vw, 5rem);
}

.arche-home__approach-list {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	border-top: 1px solid var(--arche-ink);
	border-bottom: 1px solid var(--arche-ink);
}

.arche-home__approach-item {
	min-height: clamp(21rem, 31vw, 32rem);
	padding: clamp(2rem, 4vw, 4rem);
	border-right: 1px solid var(--arche-line);
}

.arche-home__approach-item:first-child {
	padding-left: 0;
}

.arche-home__approach-item:last-child {
	padding-right: 0;
	border-right: 0;
}

.arche-home__approach-item h3 {
	margin: clamp(4rem, 9vw, 9rem) 0 clamp(2rem, 4vw, 4rem);
	font-family: Georgia, "Times New Roman", serif;
	font-size: clamp(2rem, 3.5vw, 3.75rem);
	font-weight: 400;
	line-height: 1.15;
}

.arche-home__approach-item p {
	margin-bottom: 0;
	line-height: 2;
}

.arche-home__about {
	padding-block: clamp(8rem, 15vw, 15rem);
	background: var(--arche-bg-deep);
}

.arche-home__about-grid {
	display: grid;
	grid-template-columns: minmax(10rem, 0.7fr) minmax(0, 1.65fr);
	gap: clamp(5rem, 12vw, 14rem);
}

.arche-home__about header {
	display: flex;
	min-height: 10rem;
	flex-direction: column;
	justify-content: space-between;
}

.arche-home__about-content {
	padding-top: clamp(4rem, 9vw, 9rem);
}

.arche-home__about-content .arche-home__prose {
	margin: clamp(3rem, 6vw, 6rem) 0 clamp(3rem, 5vw, 5rem);
}

.arche-home__text-link,
.arche-home__contact-link {
	display: inline-block;
	font-family: Georgia, "Times New Roman", serif;
	font-size: 1rem;
	letter-spacing: 0.035em;
}

.arche-home__contact {
	padding-block: clamp(10rem, 21vw, 21rem) clamp(8rem, 15vw, 15rem);
	background: var(--arche-bg);
	scroll-margin-top: 5rem;
}

.arche-home__contact-inner {
	display: grid;
	grid-template-columns: minmax(10rem, 0.7fr) minmax(0, 1.65fr);
	gap: clamp(5rem, 12vw, 14rem);
}

.arche-home__contact-meta {
	flex-direction: column;
	justify-content: flex-start;
	gap: clamp(3rem, 8vw, 8rem);
}

.arche-home__contact-title {
	max-width: 11em;
	margin-bottom: clamp(2.5rem, 5vw, 5rem);
	font-family: Georgia, "Times New Roman", serif;
	font-size: clamp(3.5rem, 8.5vw, 9rem);
	font-weight: 400;
	line-height: 0.98;
	letter-spacing: -0.045em;
}

.arche-home__contact-note {
	margin-bottom: clamp(3rem, 6vw, 6rem);
	font-family: "Yu Mincho", YuMincho, "Hiragino Mincho ProN", serif;
	font-size: clamp(1rem, 1.4vw, 1.25rem);
	letter-spacing: 0.08em;
}

.arche-home__contact-link {
	font-size: clamp(1.2rem, 2vw, 1.6rem);
}

@media (max-width: 1023.98px) {
	.arche-home__philosophy-grid {
		grid-template-columns: minmax(0, 1.5fr) minmax(16rem, 1fr);
		gap: clamp(3rem, 7vw, 6rem);
	}

	.arche-home__expression-item {
		grid-template-columns: 3rem minmax(10rem, 0.9fr) minmax(15rem, 1fr);
		gap: clamp(1.5rem, 3vw, 3rem);
	}

	.arche-home__expression-item:nth-child(2) {
		padding-left: 0;
	}

	.arche-home__approach-item {
		min-height: 24rem;
	}
}

@media (max-width: 767.98px) {
	.arche-home {
		--arche-side: clamp(1.25rem, 6vw, 2rem);
		font-size: 1rem;
		line-height: 1.9;
	}

	.arche-home__hero {
		min-height: min(50rem, 90svh);
	}

	.arche-home__hero-inner {
		padding-top: 2.25rem;
		padding-bottom: 2rem;
	}

	.arche-home__hero-meta,
	.arche-home__hero-foot {
		align-items: flex-start;
	}

	.arche-home__hero-meta .arche-home__stage {
		text-align: right;
	}

	.arche-home__hero-copy {
		padding-block: 4.5rem;
	}

	.arche-home__hero-title {
		font-size: clamp(2.4rem, 11.2vw, 4rem);
		line-height: 1.48;
		letter-spacing: 0.04em;
	}

	.arche-home__hero-foot {
		flex-direction: column;
		gap: 2rem;
	}

	.arche-home__scroll-link {
		align-self: flex-end;
	}

	.arche-home__section-header {
		margin-bottom: 5rem;
	}

	.arche-home__philosophy {
		padding-block: 7.5rem 10rem;
	}

	.arche-home__philosophy-grid,
	.arche-home__section-header--expressions,
	.arche-home__about-grid,
	.arche-home__contact-inner {
		grid-template-columns: 1fr;
	}

	.arche-home__philosophy-grid {
		gap: 5rem;
	}

	.arche-home__heading {
		font-size: clamp(2rem, 9.5vw, 3.25rem);
		line-height: 1.62;
	}

	.arche-home__heading br {
		display: none;
	}

	.arche-home__heading--philosophy {
		margin-left: 0;
	}

	.arche-home__prose {
		line-height: 2.15;
	}

	.arche-home__expressions {
		padding-block: 7.5rem 10rem;
	}

	.arche-home__section-header--expressions {
		gap: 4.5rem;
	}

	.arche-home__display-heading {
		font-size: clamp(3.25rem, 16vw, 6rem);
	}

	.arche-home__section-note {
		grid-template-columns: 1fr 1.7fr;
		gap: 2rem;
	}

	.arche-home__expression-item {
		grid-template-columns: 2.5rem minmax(0, 1fr);
		gap: 1rem;
		padding-block: 3rem;
	}

	.arche-home__expression-item h3 {
		font-size: clamp(2.6rem, 14vw, 4.25rem);
	}

	.arche-home__expression-item p {
		grid-column: 2;
	}

	.arche-home__expression-item p br,
	.arche-home__approach-item p br {
		display: none;
	}

	.arche-home__approach {
		padding-block: 9rem 9rem;
	}

	.arche-home__section-header--approach {
		align-items: flex-start;
	}

	.arche-home__section-header--approach .arche-home__stage {
		padding-top: 0.2rem;
		text-align: right;
	}

	.arche-home__approach-list {
		grid-template-columns: 1fr;
	}

	.arche-home__approach-item,
	.arche-home__approach-item:first-child,
	.arche-home__approach-item:last-child {
		min-height: 0;
		padding: 2.75rem 0 3.5rem;
		border-right: 0;
		border-bottom: 1px solid var(--arche-line);
	}

	.arche-home__approach-item:last-child {
		border-bottom: 0;
	}

	.arche-home__approach-item h3 {
		margin: 3.5rem 0 1.75rem;
		font-size: 2.5rem;
	}

	.arche-home__about {
		padding-block: 7.5rem 9rem;
	}

	.arche-home__about-grid,
	.arche-home__contact-inner {
		gap: 5rem;
	}

	.arche-home__about header {
		min-height: 7rem;
	}

	.arche-home__about-content {
		padding-top: 0;
	}

	.arche-home__contact {
		padding-block: 10rem 9rem;
	}

	.arche-home__contact-meta {
		flex-direction: row;
		justify-content: space-between;
	}

	.arche-home__contact-title {
		font-size: clamp(3.45rem, 17vw, 5.5rem);
	}
}

@media (max-width: 374.98px) {
	.arche-home__brand,
	.arche-home__label,
	.arche-home__stage {
		font-size: 0.625rem;
	}

	.arche-home__hero-title {
		font-size: 2.2rem;
	}

	.arche-home__display-heading {
		font-size: 3rem;
	}

	.arche-home__contact-title {
		font-size: 3rem;
	}
}

@media (prefers-reduced-motion: reduce) {
	.arche-home *,
	.arche-home *::before,
	.arche-home *::after {
		scroll-behavior: auto !important;
		transition-duration: 0.01ms !important;
	}
}