/**
 * Ikuei Global Elementary - Main Stylesheet
 */

/* ==========================================================================
   CSS Variables
   ========================================================================== */

:root {
	/* Colors */
	--color-primary: #5B2784;
	--color-primary-dark: #4A1F6E;
	--color-primary-light: #7B3DA8;
	--color-bg-white: #FFFDF9;
	--color-bg-hero: #FFFDF9;
	--color-bg-lavender: #F1E9F7;
	--color-bg-lavender-light: #F8F3FB;
	--color-text-primary: #5B2784;
	--color-text-body: #333333;
	--color-border-light: #D8C7E7;
	--color-border-divider: #D8C7E7;

	/* Typography */
	--font-primary: 'Zen Maru Gothic', 'Noto Sans JP', sans-serif;
	--font-size-xs: 0.75rem;    /* 12px */
	--font-size-sm: 0.875rem;   /* 14px */
	--font-size-base: 1rem;     /* 16px */
	--font-size-md: 1.125rem;   /* 18px */
	--font-size-lg: 1.25rem;    /* 20px */
	--font-size-xl: 1.5rem;     /* 24px */
	--font-size-2xl: 2rem;      /* 32px */
	--font-size-3xl: 2.75rem;   /* 44px */
	--font-size-hero: 3rem;     /* 48px */
	--line-height-tight: 1.4;
	--line-height-normal: 1.7;
	--line-height-loose: 1.9;
	--font-weight-normal: 400;
	--font-weight-medium: 500;
	--font-weight-bold: 700;

	/* Spacing */
	--space-xs: 0.5rem;   /* 8px */
	--space-sm: 0.75rem;  /* 12px */
	--space-md: 1rem;     /* 16px */
	--space-lg: 1.5rem;   /* 24px */
	--space-xl: 2rem;     /* 32px */
	--space-2xl: 3rem;    /* 48px */
	--space-3xl: 4rem;    /* 64px */
	--space-4xl: 5rem;    /* 80px */

	/* Layout */
	--container-max: 1200px;
	--container-padding: 40px;
	--header-height: 80px;

	/* Border radius */
	--radius-sm: 8px;
	--radius-md: 16px;
	--radius-lg: 32px;
	--radius-xl: 48px;
	--radius-pill: 9999px;

	/* Shadows */
	--shadow-sm: 0 4px 16px rgba(74, 31, 110, 0.07);
	--shadow-md: 0 8px 30px rgba(74, 31, 110, 0.08);
	--shadow-header: 0 1px 0 rgba(91, 39, 132, 0.06);

	/* Transitions */
	--transition-fast: 0.2s ease;
	--transition-normal: 0.3s ease;
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */

*,
*::before,
*::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

html {
	font-size: 16px;
	scroll-behavior: smooth;
	width: 100%;
	max-width: 100%;
	overflow-x: hidden;
	overflow-x: clip;
}

@media (min-width: 769px) {
	html {
		font-size: 19px;
	}
}

body {
	font-family: var(--font-primary);
	font-size: var(--font-size-base);
	font-weight: var(--font-weight-normal);
	line-height: var(--line-height-normal);
	color: var(--color-text-body);
	background-color: var(--color-bg-white);
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	width: 100%;
	max-width: 100%;
	overflow-x: hidden;
	overflow-x: clip;
}

.skip-link {
	position: absolute;
	top: -100px;
	left: var(--space-md);
	z-index: 100000;
	padding: 0.75rem 1.25rem;
	background-color: var(--color-primary);
	color: var(--color-bg-white);
	font-weight: var(--font-weight-medium);
	border-radius: var(--radius-pill);
}

.skip-link:focus {
	top: var(--space-md);
	outline: 2px solid var(--color-primary);
	outline-offset: 2px;
}

img {
	max-width: 100%;
	height: auto;
	display: block;
}

/* Keep UI glyphs compact while preserving their original colors. */
img[src*="/learning-tree/icon-"],
img[src*="/admission/icon-"],
img[src*="/picture-book/icon-open-book.svg"],
img[src*="/icon-megaphone.svg"],
img[src*="/icon-caution.svg"],
img[src*="/icon-photo.svg"] {
	opacity: 1;
	transform: scale(0.82);
	transform-origin: center;
}

img[src*="/icon-arrow-right-"],
img[src*="/icon-chevron-right.svg"],
img[src*="/icon-document.svg"],
img[src*="/picture-book/icon-nav-"] {
	opacity: 1;
}

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

ul,
ol {
	list-style: none;
}

button {
	font-family: inherit;
	cursor: pointer;
	border: none;
	background: none;
}

/* ==========================================================================
   Layout
   ========================================================================== */

.container {
	width: 100%;
	max-width: calc(var(--container-max) + var(--container-padding) * 2);
	margin-inline: auto;
	padding-inline: var(--container-padding);
}

.container--narrow {
	max-width: 800px;
}

.site-main {
	overflow-x: hidden;
	padding-top: var(--header-height);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: var(--space-sm);
	font-family: var(--font-primary);
	font-weight: var(--font-weight-medium);
	border-radius: var(--radius-pill);
	transition: transform var(--transition-fast), opacity var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
	white-space: nowrap;
}

.btn:hover {
	transform: translateY(-1px);
	opacity: 0.92;
}

.btn:active {
	transform: translateY(0);
}

.btn--primary {
	background-color: var(--color-primary);
	color: var(--color-bg-white);
	border: 2px solid var(--color-primary);
}

.btn--primary:hover {
	background-color: var(--color-primary-dark);
	border-color: var(--color-primary-dark);
}

.btn--outline {
	background-color: var(--color-bg-white);
	color: var(--color-primary);
	border: 2px solid var(--color-primary);
}

.btn--outline:hover {
	background-color: var(--color-bg-lavender-light);
}

.btn--sm {
	padding: 0.5rem 1.25rem;
	font-size: var(--font-size-sm);
	min-height: 40px;
}

.btn--md {
	padding: 0.75rem 2rem;
	font-size: var(--font-size-base);
	min-height: 48px;
}

.btn--lg {
	padding: 1rem 2rem;
	font-size: var(--font-size-md);
	min-height: 56px;
}

.btn__icon {
	flex-shrink: 0;
}

.btn--back .btn__icon {
	transform: scaleX(-1);
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
	position: fixed;
	top: 0;
	left: 0;
	z-index: 100;
	background-color: var(--color-bg-white);
	box-shadow: var(--shadow-header);
	height: var(--header-height);
	width: 100%;
	max-width: 100%;
}

.site-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: var(--header-height);
	gap: var(--space-lg);
	max-width: none;
	min-width: 0;
}

.site-header__logo {
	flex-shrink: 0;
}

.site-header__logo-link {
	display: block;
}

.site-header__logo-image,
.site-header__logo .custom-logo {
	height: 48px;
	width: auto;
	max-width: min(280px, 36vw);
	object-fit: contain;
}

.site-header__nav {
	flex: 1;
	display: flex;
	justify-content: center;
}

.site-header__nav-list {
	display: flex;
	align-items: center;
	gap: var(--space-xl);
}

.site-header__nav-link {
	font-size: var(--font-size-sm);
	font-weight: var(--font-weight-medium);
	color: var(--color-text-primary);
	transition: opacity var(--transition-fast);
	white-space: normal;
}

.site-header__nav-label {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 0.1rem;
	line-height: 1.25;
	text-align: center;
}

.site-header__nav-label-en {
	font-size: 0.625rem;
	font-weight: var(--font-weight-medium);
	letter-spacing: 0.08em;
	text-transform: uppercase;
	opacity: 0.75;
}

.site-header__nav-label-ja {
	font-size: var(--font-size-sm);
	font-weight: var(--font-weight-medium);
}

.site-header__nav-link:hover {
	opacity: 0.7;
}

.site-header__cta {
	flex-shrink: 0;
}

.site-header__toggle {
	display: none;
	flex-direction: column;
	justify-content: center;
	gap: 5px;
	width: 40px;
	height: 40px;
	padding: 8px;
}

.site-header__toggle-bar {
	display: block;
	width: 100%;
	height: 2px;
	background-color: var(--color-primary);
	border-radius: 2px;
	transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.site-header.is-open .site-header__toggle-bar:nth-child(1) {
	transform: translateY(7px) rotate(45deg);
}

.site-header.is-open .site-header__toggle-bar:nth-child(2) {
	opacity: 0;
}

.site-header.is-open .site-header__toggle-bar:nth-child(3) {
	transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
	position: relative;
	background-color: #FAF4FD;
	background-image:
		radial-gradient(ellipse 55% 45% at 8% 18%, rgba(120, 82, 170, 0.13) 0%, rgba(120, 82, 170, 0.06) 36%, transparent 70%),
		radial-gradient(ellipse 48% 42% at 52% 46%, rgba(140, 100, 190, 0.11) 0%, transparent 68%),
		radial-gradient(ellipse 46% 42% at 86% 84%, rgba(91, 46, 145, 0.11) 0%, transparent 68%),
		radial-gradient(ellipse 44% 38% at 10% 88%, rgba(242, 214, 138, 0.16) 0%, transparent 70%),
		radial-gradient(ellipse 42% 38% at 78% 8%, rgba(184, 158, 215, 0.1) 0%, transparent 62%),
		linear-gradient(180deg, #FCF8FF 0%, #F7F0FB 100%);
	background-repeat: no-repeat;
	padding-top: clamp(3rem, 6vw, 4.5rem);
	padding-bottom: 0;
	min-height: 620px;
	overflow: hidden;
}

.hero__bg {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	pointer-events: none;
}

.hero__deco--leaves {
	position: absolute;
	top: 60px;
	left: max(2%, calc((100% - var(--container-max)) / 2 - 40px));
	opacity: 0.9;
}

.hero__inner {
	position: relative;
	z-index: 1;
	display: grid;
	grid-template-columns: minmax(0, 0.82fr) minmax(0, 1fr);
	grid-template-rows: auto auto;
	align-items: center;
	column-gap: clamp(2rem, 4vw, 3.5rem);
	row-gap: 0;
	padding-bottom: var(--space-4xl);
	min-height: 520px;
}

.hero__content {
	position: relative;
	grid-column: 1;
	grid-row: 1;
	padding-top: var(--space-xl);
	max-width: 680px;
}

.hero__deco--bird {
	position: absolute;
	top: -12px;
	left: auto;
	right: 0;
	z-index: 2;
	width: 120px;
	height: auto;
}

.hero__title-en {
	font-size: clamp(0.6875rem, 1.1vw, 0.8125rem);
	font-weight: var(--font-weight-medium);
	color: var(--color-primary-light);
	line-height: 1.75;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	margin-bottom: var(--space-md);
}

.hero__title {
	font-size: var(--font-size-hero);
	font-weight: var(--font-weight-bold);
	color: var(--color-primary-dark);
	line-height: var(--line-height-tight);
	letter-spacing: 0.02em;
	margin-bottom: var(--space-lg);
	text-wrap: balance;
}

.hero__marker {
	position: relative;
	display: inline;
	z-index: 0;
	white-space: nowrap;
}

.hero__marker::after {
	content: '';
	position: absolute;
	left: -0.06em;
	right: -0.04em;
	bottom: 0.06em;
	height: 0.38em;
	z-index: -1;
	background:
		radial-gradient(ellipse 70% 90% at 18% 55%, rgba(255, 236, 170, 0.75) 0%, transparent 72%),
		radial-gradient(ellipse 60% 100% at 78% 45%, rgba(255, 224, 130, 0.55) 0%, transparent 70%),
		rgba(255, 230, 150, 0.52);
	border-radius: 42% 58% 48% 52% / 68% 42% 58% 32%;
	transform: rotate(-1.4deg) skewX(-3deg);
	pointer-events: none;
}

.hero__subtitle {
	font-size: var(--font-size-lg);
	font-weight: var(--font-weight-normal);
	color: var(--color-text-primary);
	line-height: var(--line-height-loose);
	margin-bottom: var(--space-2xl);
}

.hero__actions {
	grid-column: 1;
	grid-row: 2;
	display: flex;
	flex-wrap: nowrap;
	align-items: center;
	gap: var(--space-md);
	align-self: start;
}

.hero__visual {
	position: relative;
	z-index: 1;
	grid-column: 2;
	grid-row: 1 / -1;
	display: flex;
	justify-content: flex-end;
	align-items: center;
	width: 100%;
	max-width: 560px;
	margin-inline: auto 0;
	box-sizing: border-box;
}

/* Scrapbook photo frame: paper → frame → slides → tape */
.hero-photo-frame {
	--hero-frame-pad: 0.85rem;
	position: relative;
	z-index: 2;
	width: 100%;
	max-width: 540px;
	aspect-ratio: 4 / 3;
	padding: var(--hero-frame-pad) var(--hero-frame-pad) 2rem;
	overflow: visible;
	background-color: #fff;
	border: 1px solid rgba(210, 200, 185, 0.48);
	box-shadow:
		0 1px 0 rgba(255, 255, 255, 0.7) inset,
		0 8px 22px rgba(72, 53, 35, 0.1);
	transform: rotate(-0.7deg);
}

.hero-photo-frame::before {
	content: '';
	position: absolute;
	top: -1.15rem;
	right: -1.25rem;
	bottom: 0.35rem;
	left: 0.9rem;
	z-index: -1;
	background-color: #ded1f0;
	border: 1px solid rgba(160, 136, 200, 0.45);
	box-shadow: 0 6px 16px rgba(72, 53, 35, 0.08);
	transform: rotate(2.8deg);
	pointer-events: none;
}

.hero-slideshow {
	position: relative;
	z-index: 2;
	width: 100%;
	height: 100%;
	overflow: hidden;
	background-color: #f4efe8;
	border: 1px solid rgba(120, 100, 80, 0.12);
	box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.15);
}

.hero-slideshow .hero__image,
.hero-slideshow .site-hero__slide {
	position: absolute;
	inset: 0;
	z-index: 0;
	width: 100%;
	height: 100%;
	aspect-ratio: auto;
	object-fit: cover;
	object-position: center;
	border-radius: 0;
	opacity: 0;
	transition: opacity 1.8s ease-in-out;
	box-shadow: none;
	filter: saturate(1.06) contrast(1.04);
}

.hero-slideshow .site-hero__slide.is-active {
	opacity: 1;
	z-index: 1;
}

.hero-tape {
	position: absolute;
	top: -1.1rem;
	left: 50%;
	z-index: 3;
	width: 8.5rem;
	height: 2.2rem;
	transform: translateX(-50%) rotate(-6deg);
	background-image: repeating-linear-gradient(
		135deg,
		rgba(255, 255, 255, 0.44) 0 6px,
		rgba(255, 255, 255, 0) 6px 12px
	);
	background-color: rgba(230, 162, 178, 0.71);
	box-shadow: 0 1px 3px rgba(72, 53, 35, 0.12);
	pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
	.hero-slideshow .site-hero__slide {
		transition: none;
	}
}

.hero__image--placeholder {
	display: flex;
	align-items: center;
	justify-content: center;
	background: linear-gradient(135deg, var(--color-bg-lavender) 0%, var(--color-bg-lavender-light) 100%);
	border: 2px dashed var(--color-border-light);
}

.hero__placeholder-text {
	font-size: var(--font-size-sm);
	color: var(--color-primary-light);
	opacity: 0.6;
}

.hero__wave {
	position: relative;
	z-index: 2;
	margin-top: -1px;
	line-height: 0;
}

.hero__wave svg {
	display: block;
	width: 100%;
	height: clamp(96px, 9vw, 132px);
}

.hero__wave path {
	fill: var(--color-bg-white);
}

/* ==========================================================================
   News Section
   ========================================================================== */

.news-section {
	position: relative;
	z-index: 1;
	background-color: var(--color-bg-white);
	padding-block: var(--space-4xl);
}

.news-section__inner {
	display: grid;
	grid-template-columns: 1fr 1fr;
	align-items: center;
	gap: var(--space-3xl);
}

.news-section__content {
	max-width: 560px;
}

.news-section__header {
	display: flex;
	align-items: center;
	gap: var(--space-md);
	margin-bottom: var(--space-xl);
}

.news-section__icon {
	flex-shrink: 0;
	width: 48px;
	height: 48px;
}

.news-section__title {
	line-height: var(--line-height-tight);
}

.news-section__title .section-heading__en {
	font-size: var(--font-size-2xl);
}

.news-section__title .section-heading__ja {
	font-size: var(--font-size-sm);
}

/* ==========================================================================
   Bilingual section headings
   ========================================================================== */

.section-heading {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	gap: 0.35rem;
}

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

.section-heading__en {
	font-size: clamp(1.25rem, 2.5vw, 1.75rem);
	font-weight: var(--font-weight-bold);
	color: var(--color-primary-dark);
	line-height: 1.2;
	letter-spacing: 0.04em;
	margin: 0;
}

.section-heading__ja {
	font-size: 0.9375rem;
	font-weight: var(--font-weight-medium);
	color: var(--color-primary);
	line-height: 1.4;
	margin: 0;
}

.news-list {
	margin-bottom: var(--space-xl);
}

.news-list__item {
	border-bottom: 1px solid var(--color-border-divider);
}

.news-list__item:first-child {
	border-top: 1px solid var(--color-border-divider);
}

.news-list__link {
	display: grid;
	grid-template-columns: auto 1fr auto;
	align-items: center;
	gap: var(--space-lg);
	padding-block: var(--space-lg);
	transition: opacity var(--transition-fast);
}

.news-list__link:hover {
	opacity: 0.7;
}

.news-list__link--static {
	cursor: default;
}

.news-list__date {
	font-size: var(--font-size-base);
	font-weight: var(--font-weight-medium);
	color: var(--color-text-primary);
	white-space: nowrap;
	min-width: 100px;
}

.news-list__title {
	display: flex;
	align-items: center;
	flex-wrap: wrap;
	gap: 0.45em 0.5em;
	font-size: var(--font-size-base);
	font-weight: var(--font-weight-normal);
	color: var(--color-text-primary);
	line-height: var(--line-height-normal);
}

.news-list__pickup {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	box-sizing: border-box;
	margin: 0;
	min-height: 1.6em;
	/* JPフォントは字形が下寄りなので、下余白を多めにして視覚中央へ */
	padding: 0.08em 0.7em 0.26em;
	border-radius: var(--radius-pill);
	font-size: var(--font-size-xs);
	font-weight: var(--font-weight-bold);
	letter-spacing: 0.04em;
	line-height: 1;
	color: #fff;
	background: var(--color-primary);
}

.news-list__empty {
	padding-block: var(--space-lg);
	font-size: var(--font-size-base);
	color: var(--color-text-primary);
	border-top: 1px solid var(--color-border-divider);
	border-bottom: 1px solid var(--color-border-divider);
	margin-bottom: var(--space-xl);
}

.news-list__chevron {
	flex-shrink: 0;
	justify-self: end;
}

.news-section__footer {
	grid-column: 1 / -1;
	display: flex;
	justify-content: center;
	padding-top: var(--space-md);
}

.news-section__illustration {
	display: flex;
	justify-content: center;
	align-items: center;
}

.news-section__illustration-image {
	width: 100%;
	max-width: 480px;
	height: auto;
}

/* ==========================================================================
   Page Content (inner pages)
   ========================================================================== */

.page-content {
	padding-block: var(--space-3xl);
	min-height: 50vh;
}

.entry__header {
	margin-bottom: var(--space-xl);
}

.entry__title {
	font-size: var(--font-size-2xl);
	font-weight: var(--font-weight-bold);
	color: var(--color-text-primary);
	line-height: var(--line-height-tight);
}

.entry__meta {
	display: flex;
	align-items: center;
	gap: var(--space-md);
	margin-bottom: var(--space-md);
	font-size: var(--font-size-sm);
	color: var(--color-text-primary);
}

.entry__category {
	padding: 0.25rem 0.75rem;
	background-color: var(--color-bg-lavender);
	border-radius: var(--radius-pill);
	font-size: var(--font-size-xs);
}

.entry__thumbnail {
	margin-bottom: var(--space-xl);
	border-radius: var(--radius-md);
	overflow: hidden;
}

.entry__thumbnail img {
	width: 100%;
	height: auto;
}

.entry__content {
	font-size: var(--font-size-base);
	line-height: var(--line-height-loose);
	color: var(--color-text-body);
}

.entry__content p {
	margin-bottom: var(--space-md);
}

.entry__event-details {
	margin-top: var(--space-xl);
	padding-top: var(--space-xl);
	border-top: 1px solid var(--color-border-divider);
}

.entry__event-details h2 {
	font-size: var(--font-size-lg);
	font-weight: var(--font-weight-bold);
	color: var(--color-text-primary);
	margin-bottom: var(--space-md);
}

.entry__event-details h3 {
	font-size: var(--font-size-md);
	font-weight: var(--font-weight-bold);
	margin: var(--space-lg) 0 var(--space-sm);
}

.entry__event-status {
	display: inline-block;
	margin-bottom: var(--space-md);
	padding: 0.25rem 0.75rem;
	background-color: var(--color-bg-lavender);
	border-radius: var(--radius-pill);
	font-size: var(--font-size-xs);
	font-weight: var(--font-weight-bold);
	color: var(--color-text-primary);
}

.entry__event-details dl div {
	margin-bottom: var(--space-sm);
}

.entry__event-details dt {
	font-size: var(--font-size-xs);
	font-weight: var(--font-weight-medium);
	color: var(--color-text-primary);
	margin-bottom: 0.15rem;
}

.entry__event-details dd {
	margin: 0;
	font-size: var(--font-size-sm);
	color: var(--color-text-body);
}

.entry__event-details ul {
	margin: 0 0 var(--space-md);
	padding-left: 1.25rem;
}

.entry__event-details__actions {
	margin-top: var(--space-xl);
}

.entry__event-details__actions .is-disabled {
	pointer-events: none;
	opacity: 0.65;
	cursor: default;
}

.entry__event-note {
	margin: var(--space-md) 0 0;
	padding: 0.75rem 1rem;
	border-radius: var(--radius-sm);
	font-size: var(--font-size-sm);
	font-weight: var(--font-weight-medium);
	line-height: var(--line-height-loose);
	color: var(--color-primary);
	background: var(--color-bg-lavender-light);
}

.entry__event-apply {
	min-height: 52px;
}

.entry__content a {
	color: var(--color-primary);
	text-decoration: underline;
}

.entry__footer {
	margin-top: var(--space-2xl);
	padding-top: var(--space-xl);
	border-top: 1px solid var(--color-border-divider);
}

.archive-header {
	margin-bottom: var(--space-2xl);
}

.archive-header__title {
	font-size: var(--font-size-2xl);
	font-weight: var(--font-weight-bold);
	color: var(--color-text-primary);
}

.news-list--archive {
	max-width: 800px;
}

.pagination {
	margin-top: var(--space-2xl);
	text-align: center;
}

.pagination .nav-links {
	display: flex;
	justify-content: center;
	gap: var(--space-sm);
}

.pagination .page-numbers {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 40px;
	height: 40px;
	padding-inline: var(--space-sm);
	border-radius: var(--radius-sm);
	color: var(--color-text-primary);
	transition: background-color var(--transition-fast);
}

.pagination .page-numbers:hover,
.pagination .page-numbers.current {
	background-color: var(--color-bg-lavender);
}

.archive-empty {
	color: var(--color-text-primary);
	opacity: 0.7;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
	background-color: var(--color-bg-lavender-light);
	padding-block: var(--space-xl);
	border-top: 1px solid var(--color-border-divider);
}

.site-footer__copyright {
	font-size: var(--font-size-sm);
	color: var(--color-text-primary);
	text-align: center;
	opacity: 0.7;
}

/* ==========================================================================
   Animations
   ========================================================================== */

.js-fade-up {
	opacity: 0;
	transform: translateY(24px);
}

.js-fade-up.is-visible {
	opacity: 1;
	transform: translateY(0);
	transition: opacity 0.7s ease, transform 0.7s ease;
}

/* ==========================================================================
   Responsive - Compact header / Tablet (max 1180px)
   ========================================================================== */

@media (max-width: 1180px) {
	:root {
		--container-padding: 32px;
		--font-size-hero: 2.5rem;
	}

	.site-header::before {
		content: '';
		position: fixed;
		inset: 0;
		z-index: 1;
		background: rgba(38, 20, 52, 0.28);
		opacity: 0;
		visibility: hidden;
		transition: opacity 0.35s ease, visibility 0.35s ease;
	}

	.site-header.is-open::before {
		opacity: 1;
		visibility: visible;
	}

	.site-header__inner {
		gap: var(--space-sm);
	}

	.site-header__logo-image,
	.site-header__logo .custom-logo {
		height: 44px;
		max-width: min(220px, 46vw);
	}

	.site-header__toggle {
		display: flex;
		order: 3;
		position: relative;
		z-index: 4;
		flex-shrink: 0;
		width: 46px;
		height: 46px;
		padding: 11px;
		gap: 5px;
		border-radius: 14px;
		background: var(--color-bg-lavender-light);
	}

	.site-header__logo {
		order: 1;
	}

	.site-header__cta {
		position: fixed;
		right: 20px;
		bottom: 24px;
		z-index: 3;
		width: min(calc(90vw - 40px), 440px);
		max-width: calc(100% - 40px);
		transform: translateX(calc(100vw + 20px));
		transition: transform 0.35s ease;
	}

	.site-header__cta-btn {
		width: 100%;
		min-height: 54px;
		padding: 0.875rem 1.25rem;
		font-size: var(--font-size-sm);
	}

	.site-header__cta-btn .btn__icon {
		width: 18px;
		height: 18px;
	}

	.site-header__nav {
		position: fixed;
		top: 0;
		right: 0;
		bottom: 0;
		z-index: 3;
		width: min(90vw, 480px);
		max-width: 100%;
		background: linear-gradient(180deg, var(--color-bg-white), var(--color-bg-lavender-light));
		flex-direction: column;
		justify-content: flex-start;
		padding: var(--header-height) var(--container-padding) 112px;
		transform: translateX(100%);
		transition: transform 0.35s ease;
		overflow-y: auto;
		box-shadow: -8px 0 24px rgba(91, 39, 132, 0.1);
	}

	.site-header.is-open .site-header__nav,
	.site-header.is-open .site-header__cta {
		transform: translateX(0);
	}

	.site-header__nav-list {
		flex-direction: column;
		align-items: flex-start;
		gap: 0;
		width: 100%;
	}

	.site-header__nav-item {
		width: 100%;
		border-bottom: 1px solid var(--color-border-divider);
	}

	.site-header__nav-link {
		display: flex;
		align-items: center;
		justify-content: space-between;
		gap: var(--space-md);
		padding-block: var(--space-lg);
		font-size: var(--font-size-base);
		width: 100%;
	}

	.site-header__nav-label {
		align-items: flex-start;
		text-align: left;
	}

	.site-header__nav-label-ja {
		font-size: var(--font-size-base);
	}

	.site-header__nav-link::after {
		content: '';
		flex-shrink: 0;
		width: 14px;
		height: 14px;
		background: url('../images/icon-arrow-right-purple.svg') center / contain no-repeat;
	}

	.hero__inner {
		gap: var(--space-xl);
		min-height: auto;
	}

	.hero__actions {
		flex-wrap: wrap;
		row-gap: var(--space-sm);
	}

	.hero__deco--bird {
		right: 0;
		left: auto;
		width: 108px;
	}

	.news-section__inner {
		gap: var(--space-2xl);
	}
}

/* ==========================================================================
   Responsive - Hero stack (max 1126px)
   ========================================================================== */

@media (max-width: 1126px) {
	.hero {
		min-height: auto;
		padding-top: clamp(2rem, 5vw, 3.5rem);
	}

	.hero__inner {
		grid-template-columns: 1fr;
		grid-template-rows: none;
		row-gap: var(--space-xl);
		column-gap: 0;
		padding-bottom: var(--space-2xl);
		min-height: auto;
	}

	.hero__content {
		order: 1;
		grid-column: auto;
		grid-row: auto;
		padding-top: var(--space-md);
		max-width: none;
		text-align: center;
	}

	.hero__title,
	.hero__title-en,
	.hero__subtitle {
		text-align: center;
	}

	.hero__subtitle {
		margin-bottom: 0;
	}

	.hero__visual {
		order: 2;
		grid-column: auto;
		grid-row: auto;
		max-width: min(480px, 100%);
		margin-inline: auto;
		justify-content: center;
	}

	.hero-photo-frame {
		max-width: 100%;
	}

	.hero__deco--bird {
		top: -8px;
		right: 0;
		left: auto;
		width: clamp(72px, 12vw, 96px);
	}

	.hero__actions {
		order: 3;
		grid-column: auto;
		grid-row: auto;
		flex-wrap: wrap;
		align-items: center;
		justify-content: center;
		gap: var(--space-md);
	}
}

/* ==========================================================================
   Responsive - Mobile (max 768px)
   ========================================================================== */

@media (max-width: 768px) {
	:root {
		--container-padding: 20px;
		--header-height: 64px;
		--font-size-hero: 2rem;
		--font-size-2xl: 1.5rem;
		--font-size-lg: 1.125rem;
		--space-3xl: 2.5rem;
		--space-4xl: 3rem;
	}

	.site-header__logo-image,
	.site-header__logo .custom-logo {
		height: 40px;
		max-width: min(200px, 52vw);
	}

	.hero {
		min-height: auto;
		padding-top: var(--space-2xl);
	}

	.hero__inner {
		grid-template-columns: 1fr;
		grid-template-rows: none;
		row-gap: var(--space-xl);
		column-gap: 0;
		padding-bottom: var(--space-2xl);
		min-height: auto;
	}

	.hero__content {
		order: 1;
		grid-column: auto;
		grid-row: auto;
		padding-top: var(--space-md);
		max-width: none;
		text-align: center;
	}

	.hero__title,
	.hero__title-en,
	.hero__subtitle {
		text-align: center;
	}

	.hero__subtitle {
		margin-bottom: 0;
	}

	.hero__visual {
		order: 2;
		grid-column: auto;
		grid-row: auto;
		width: 100%;
		max-width: 420px;
		margin-inline: auto;
		padding-inline: 1.25rem;
		box-sizing: border-box;
		justify-content: center;
	}

	.hero-photo-frame {
		max-width: 100%;
		margin-inline: auto;
		transform: rotate(-0.8deg);
	}

	.hero-photo-frame::before {
		top: -1rem;
		right: 0.75rem;
		left: 0.75rem;
	}

	.hero__deco--leaves {
		top: 20px;
		left: 0;
		width: 120px;
		height: auto;
	}

	.hero__deco--bird {
		top: -8px;
		right: 0;
		left: auto;
		width: 88px;
	}

	.hero__actions {
		order: 3;
		grid-column: auto;
		grid-row: auto;
		flex-direction: column;
		align-items: center;
		justify-content: center;
	}

	.hero__actions .btn {
		width: auto;
		max-width: 100%;
		align-self: center;
		justify-content: center;
		padding: 0.625rem 1.25rem;
		font-size: var(--font-size-sm);
		min-height: 40px;
	}

	.hero__wave svg {
		height: 64px;
	}

	.news-section {
		padding-block: var(--space-3xl);
	}

	.news-section__inner {
		grid-template-columns: 1fr;
	}

	.news-section__content {
		order: 1;
		max-width: 100%;
	}

	.news-section__footer {
		order: 2;
	}

	.news-section__illustration {
		order: 3;
	}

	.news-section__illustration-image {
		max-width: 320px;
	}

	.news-list__link {
		grid-template-columns: 1fr auto;
		grid-template-rows: auto auto;
		gap: var(--space-xs) var(--space-md);
		padding-block: var(--space-md);
	}

	.news-list__date {
		grid-column: 1;
		grid-row: 1;
		min-width: auto;
		font-size: var(--font-size-sm);
	}

	.news-list__title {
		grid-column: 1 / -1;
		grid-row: 2;
		font-size: var(--font-size-sm);
	}

	.news-list__chevron {
		grid-column: 2;
		grid-row: 1;
		align-self: center;
	}
}

/* ==========================================================================
   Responsive - Small Mobile (max 430px)
   ========================================================================== */

@media (max-width: 430px) {
	:root {
		--font-size-hero: 1.75rem;
		--container-padding: 16px;
	}

	.site-header__logo-image,
	.site-header__logo .custom-logo {
		height: 36px;
		max-width: min(180px, 56vw);
	}

	.btn--lg {
		padding: 0.875rem 1.5rem;
		font-size: var(--font-size-base);
		min-height: 48px;
	}
}