@import url("https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@500;600&family=Montserrat:wght@500;600;700&family=Noto+Sans+JP:wght@400;500;700&family=Noto+Serif+JP:wght@500;600&display=swap");

:root {
	--color-primary: #009393;
	--color-primary-dark: #007575;
	--color-bg: #f8fafc;
	--color-surface: #ffffff;
	--color-text: #1f2937;
	--color-text-muted: #4b5563;
	--color-border: #d9e2ec;
	--color-accent: #f59e0b;
	--color-accent-dark: #d97706;
	--color-line: #06c755;
	--shadow-soft: 0 10px 30px rgba(15, 23, 42, 0.08);
	--radius-md: 12px;
	--radius-lg: 18px;
	--radius-button: 999px;
	--radius-image: 0;
	--container: 1120px;
	--header-height: 72px;
	--mobile-sticky-contact-height: 0px;
}

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

html {
	scroll-behavior: smooth;
}

body {
	margin: 0;
	font-family: "Noto Sans JP", sans-serif;
	font-size: 16px;
	line-height: 1.75;
	color: var(--color-text);
	background-color: var(--color-bg);
	-webkit-font-smoothing: antialiased;
	text-rendering: optimizeLegibility;
}

img {
	max-width: 100%;
	height: auto;
	display: block;
	border-radius: var(--radius-image);
}

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

ul {
	margin: 0;
	padding: 0;
	list-style: none;
}

h1,
h2,
h3 {
	margin: 0 0 0.8em;
	line-height: 1.35;
	color: #111827;
}

p {
	margin: 0 0 1em;
}

.visually-hidden {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

.site-header__inner,
.top-concept__inner,
.top-services__inner,
.top-news__inner,
.top-company__inner,
.site-footer__inner {
	width: min(100% - 2rem, var(--container));
	margin-inline: auto;
}

.section-heading {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	gap: 0;
	width: fit-content;
	max-width: 100%;
	margin: 0 0 2.7rem;
}

.section-heading--center {
	align-items: center;
	text-align: center;
	margin-inline: auto;
}

.section-heading__en {
	position: relative;
	z-index: 1;
	font-family: "Montserrat", sans-serif;
	font-size: clamp(2.85rem, 12vw, 4.75rem);
	font-weight: 700;
	line-height: 1;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: rgba(17, 24, 39, 0.1);
}

.section-heading__ja {
	position: relative;
	z-index: 2;
	margin-top: clamp(-2.4rem, -6vw, -1.1rem);
	font-size: clamp(1.65rem, 4.2vw, 2.35rem);
	font-weight: 700;
	line-height: 1.35;
	letter-spacing: 0.05em;
	color: #111827;
}

/* Sub-page section heading (lower pages) */
.section-heading--subpage {
	margin-block: 0 clamp(1.5rem, 4vw, 2.25rem);
	margin-inline: 0;
}

.section-heading--subpage.section-heading--center {
	margin-inline: auto;
}

.section-heading--subpage .section-heading__en {
	font-size: clamp(1.35rem, 4.8vw, 2.65rem);
	line-height: 1.15;
	letter-spacing: 0.04em;
}

.section-heading--subpage .section-heading__ja {
	margin-top: clamp(-1.8rem, -3.8vw, -0.75rem);
	font-size: clamp(1.45rem, 3.8vw, 2rem);
	font-weight: 700;
}

.section-heading--subpage-compact {
	margin-bottom: clamp(1rem, 2.5vw, 1.35rem);
}

.section-heading--subpage-compact .section-heading__en {
	font-size: clamp(1.2rem, 4.2vw, 2rem);
	line-height: 1.15;
	letter-spacing: 0.04em;
}

.section-heading--subpage-compact .section-heading__ja {
	margin-top: clamp(-1.1rem, -3.2vw, -0.65rem);
	font-size: clamp(1.25rem, 3.4vw, 1.65rem);
	font-weight: 700;
}

.section-heading--subpage-interview .section-heading__en {
	font-size: clamp(1.35rem, 3vw, 2rem);
	color: rgba(0, 117, 117, 0.22);
}

.section-heading--subpage-interview .section-heading__ja {
	font-size: clamp(1.2rem, 2.8vw, 1.65rem);
	color: var(--color-primary-dark);
}

.section-heading--subpage-related .section-heading__ja {
	font-size: clamp(1.2rem, 2.8vw, 1.5rem);
}

.scroll-reveal {
	opacity: 0;
	transform: translate3d(0, 2.5rem, 0);
	transition:
		opacity 0.8s ease-out,
		transform 0.95s cubic-bezier(0.2, 1, 0.3, 1);
	transition-delay: var(--reveal-delay, 0ms);
	will-change: opacity, transform;
}

.scroll-reveal.is-visible {
	opacity: 1;
	transform: translate3d(0, 0, 0);
}