/**
 * 全ページ共通のヘッダーとレスポンシブナビゲーションを管理する。
 *
 * ヘッダー本体、デスクトップナビゲーション、メガメニュー、モバイルメニューで
 * 共通利用する寸法・ブランド色・トランジションをこのファイルで一元管理する。
 * ページ固有CSSはここで定義したカスタムプロパティを参照するだけとし、
 * ヘッダー高やナビゲーションのブレークポイントを別ファイルから上書きしない。
 */

:root {
	/* 表示幅ごとに変化するヘッダー高。用途名を分け、参照側の責務を明確にする。 */
	--shs-header-large: 104px;
	--shs-header-compact: 78px;
	--shs-header-small: 82px;
	--shs-header-desktop: 104px;
	--shs-header-mobile: 82px;
	--shs-header-mobile-small: 72px;

	/* ヘッダー内だけで使うブランド色・本文色・境界線・アニメーション基準。 */
	--shs-header-wine: #9e5369;
	--shs-header-rose: #ef78bc;
	--shs-header-text: #443d41;
	--shs-header-muted: #94888e;
	--shs-header-line: rgba(158, 83, 105, 0.16);
	--shs-header-ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/**
 * 1.0 ヘッダー共通枠
 *
 * 固定ヘッダーの高さ・背景・境界線を全ページで共通化し、コンテンツ側が参照するヘッダー寸法の基準をここで確定する。
 */

.site-header {
	position: fixed;
	z-index: 1000;
	top: 0;
	right: 0;
	left: 0;
	width: 100%;
	height: var(--shs-header-desktop);
	min-height: var(--shs-header-desktop);
	color: var(--shs-header-text);
	background: rgba(255, 255, 255, 0.97);
	border-top: 1px solid rgba(239, 120, 188, 0.72);
	border-bottom: 1px solid rgba(239, 120, 188, 0.84);
	box-shadow: 0 8px 24px rgba(158, 83, 105, 0.055);
	backdrop-filter: blur(15px);
	transition: height 0.34s var(--shs-header-ease), min-height 0.34s var(--shs-header-ease), background-color 0.28s ease, box-shadow 0.28s ease;
}

body.admin-bar .site-header {
	top: 32px;
}

/* 404 は index.php の汎用 .site-main を使うため、固定ヘッダー分だけ本文を下げる。 */
body.error404 .site-main {
	padding-top: var(--shs-header-desktop);
}

.site-header .header-inner {
	width: min(1840px, calc(100% - 32px));
	height: 100%;
	min-height: inherit;
	margin: 0 auto;
	display: grid;
	grid-template-columns: clamp(230px, 18vw, 320px) minmax(0, 1fr) auto;
	align-items: center;
	column-gap: clamp(16px, 1.45vw, 28px);
	transition: column-gap 0.34s var(--shs-header-ease);
}

/**
 * --------------------------------------------------------------------------
 * 2. 学校ロゴ・学校名
 * --------------------------------------------------------------------------
 * ロゴ画像と和英学校名を一つのブランド領域として配置する。
 * ヘッダー高が縮小しても文字とロゴの比率が崩れないよう、サイズ変更は
 * `.is-compact` と各ブレークポイントの定義だけで行う。
 */

.site-header h1.shs-header-brand {
	min-width: 0;
	margin: 0;
	padding: 0;
	background: transparent;
	line-height: 1;
}

.site-header .shs-header-brand__link {
	display: inline-flex;
	max-width: 100%;
	align-items: center;
	gap: 14px;
	color: var(--shs-header-wine);
	background: transparent;
	text-decoration: none;
}

.site-header .shs-header-brand__mark {
	width: 72px;
	min-width: 72px;
	height: 72px;
	display: grid;
	place-items: center;
	flex: 0 0 72px;
	transition: width 0.34s var(--shs-header-ease), min-width 0.34s var(--shs-header-ease), height 0.34s var(--shs-header-ease), flex-basis 0.34s var(--shs-header-ease);
}

.site-header .shs-header-brand__mark img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: contain;
}

.site-header .shs-header-brand__text {
	min-width: 0;
	display: flex;
	flex-direction: column;
	justify-content: center;
}

.site-header .shs-header-brand__name {
	display: block;
	color: var(--shs-header-wine);
	font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
	font-size: clamp(19px, 1.32vw, 23px);
	font-weight: 600;
	line-height: 1.15;
	letter-spacing: 0.1em;
	white-space: nowrap;
	transition: font-size 0.34s var(--shs-header-ease);
}

.site-header .shs-header-brand__en {
	display: block;
	margin-top: 5px;
	color: #746b70;
	font-family: "Oswald", "Noto Sans JP", sans-serif;
	font-size: clamp(7.4px, 0.52vw, 9px);
	font-weight: 400;
	line-height: 1.25;
	letter-spacing: 0.065em;
	white-space: nowrap;
}

/**
 * --------------------------------------------------------------------------
 * 3. デスクトップナビゲーション
 * --------------------------------------------------------------------------
 * 1281px以上では主ナビゲーションを横並びで表示する。リンクの高さを
 * ヘッダー全高へ合わせ、文字量が異なる項目でもクリック領域を揃える。
 */

.site-header .main-nav,
.site-header .main-nav__list {
	min-width: 0;
	height: 100%;
}

.site-header .main-nav {
	width: 100%;
	justify-self: end;
}

.nav01c {
	width: 100%;
	height: 100%;
	margin: 0;
	padding: 0;
	display: flex;
	align-items: stretch;
	justify-content: flex-end;
	gap: clamp(14px, 1.05vw, 22px);
	list-style: none;
}

.nav01c > li {
	min-width: max-content;
	height: 100%;
	flex: 0 0 auto;
}

.nav01c > li > a {
	height: 100%;
	padding: 5px 2px 4px;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	color: var(--shs-header-text);
	font-family: "Noto Sans JP", sans-serif;
	font-weight: 700;
	line-height: 1.25;
	text-align: center;
	text-decoration: none;
	white-space: nowrap;
	transition: color var(--shs-hover-lift-duration) var(--shs-hover-lift-ease);
}

.site-header .main-nav .shs-nav-label-jp {
	display: block;
	font-size: clamp(12px, 0.82vw, 14px);
	letter-spacing: 0.035em;
}

.site-header .main-nav .shs-nav-label-en {
	display: block;
	margin-top: 4px;
	color: #7f7379;
	font-size: clamp(7.5px, 0.54vw, 9px);
	font-weight: 500;
	letter-spacing: 0.015em;
	transition: color 0.24s ease;
}

.nav01c > li > a::after {
	content: "";
	width: 48px;
	height: 2px;
	margin-top: 7px;
	display: block;
	flex: 0 0 2px;
	background: var(--shs-header-rose);
	border-radius: 999px;
	transform: scaleX(0);
	transform-origin: center;
	transition: transform 0.3s var(--shs-header-ease);
}

.nav01c > li > a:hover,
.nav01c > li.current > a,
.nav01c > li.current-menu-item > a,
.nav01c > li.current-menu-ancestor > a {
	color: var(--shs-header-rose);
}

.nav01c > li > a:hover .shs-nav-label-en,
.nav01c > li.current > a .shs-nav-label-en,
.nav01c > li.current-menu-item > a .shs-nav-label-en,
.nav01c > li.current-menu-ancestor > a .shs-nav-label-en {
	color: #b0588a;
}

.nav01c > li > a:hover::after,
.nav01c > li.current > a::after,
.nav01c > li.current-menu-item > a::after,
.nav01c > li.current-menu-ancestor > a::after {
	transform: scaleX(1);
}

/**
 * 子ページリンクは同一HTMLを使用し、共通ブレークポイントで
 * デスクトップのメガメニューと
 * モバイルのアコーディオンを切り替える。
 */

.site-header .shs-mobile-submenu,
.site-header .shs-mega-menu-backdrop,
.site-header .shs-mega-menu-panel {
	display: none;
}

/**
 * 4.0 相談・問い合わせ導線
 *
 * ヘッダー右端の主要CTAを常に同じ優先度で提示し、通常リンクと区別できる押下領域・配色を維持する。
 */

.site-header .header-actions {
	display: flex;
	align-items: center;
	justify-content: flex-end;
	gap: 12px;
}

.site-header .header-actions .btn {
	min-width: 118px;
	min-height: 52px;
	padding: 0 22px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	border: 1px solid transparent;
	border-radius: 999px;
	font-family: "Noto Sans JP", sans-serif;
	font-size: 13px;
	font-weight: 700;
	line-height: 1.2;
	letter-spacing: 0.035em;
	text-decoration: none;
	white-space: nowrap;
	transition:
		color 0.25s ease,
		background-color 0.25s ease,
		border-color 0.25s ease,
		box-shadow 0.25s ease,
		transform var(--shs-hover-lift-duration) var(--shs-hover-lift-ease),
		min-height 0.34s var(--shs-header-ease),
		padding 0.34s var(--shs-header-ease);
}

.site-header .header-actions .btn-primary {
	color: #ffffff;
	background: var(--shs-header-wine);
	box-shadow: 0 11px 24px rgba(158, 83, 105, 0.2);
}

.site-header .header-actions .btn-outline {
	min-width: 172px;
	color: #b93f83;
	background: rgba(255, 255, 255, 0.92);
	border-color: rgba(158, 83, 105, 0.42);
}

.site-header .header-actions .btn:hover {
	transform: translateY(var(--shs-hover-lift-distance));
}

.site-header .header-actions .btn-primary:hover {
	box-shadow: 0 15px 30px rgba(158, 83, 105, 0.28);
}

.site-header .header-actions .btn-outline:hover,
.site-header .header-actions .btn-outline:focus,
.site-header .header-actions .btn-outline:active {
	color: #b93f83;
	background: rgba(239, 120, 188, .030);
	border-color: rgba(158, 83, 105, 0.6);
	box-shadow: 0 10px 22px rgba(158, 83, 105, 0.1);
}

.site-header .g-nav-openbtn,
.shs-mobile-nav-head,
.shs-mobile-nav-cta {
	display: none;
}

/**
 * 5.0 デスクトップのメガメニューとコンパクト表示
 *
 * 1281px以上では親項目と子ページを同時に確認できるメガメニューへ切り替え、スクロール時はヘッダー高さだけを縮小する。
 * 開閉状態とフォーカス制御はassets/js/shared/navigation/mega-menu.jsが担当する。
 */

@media screen and (min-width: 1281px) {
	.site-header .shs-mega-menu-backdrop {
		position: absolute;
		z-index: 1;
		top: 100%;
		left: 0;
		width: 100%;
		height: 100vh;
		padding: 0;
		display: block;
		border: 0;
		background: rgba(158, 83, 105, 0.2);
		opacity: 0;
		visibility: hidden;
		pointer-events: none;
		cursor: default;
		transition: opacity 0.24s ease, visibility 0s linear 0.28s;
	}

	.site-header.shs-mega-menu-open .shs-mega-menu-backdrop {
		opacity: 1;
		visibility: visible;
		pointer-events: auto;
		transition-delay: 0s;
	}

	.site-header .shs-mega-menu-panel {
		position: absolute;
		z-index: 2;
		top: 100%;
		left: 0;
		width: 100%;
		min-height: 238px;
		display: block;
		overflow: hidden;
		color: var(--shs-header-text);
		background: radial-gradient(circle at 84% 14%, rgba(239, 120, 188, 0.09), transparent 32%), #fff;
		border-top: 1px solid rgba(158, 83, 105, 0.09);
		border-bottom: 1px solid rgba(158, 83, 105, 0.14);
		box-shadow: 0 22px 46px rgba(158, 83, 105, 0.14);
		opacity: 0;
		visibility: hidden;
		pointer-events: none;
		transform: translateY(-12px);
		transform-origin: top center;
		transition: opacity 0.22s ease, transform 0.32s var(--shs-header-ease), visibility 0s linear 0.32s;
	}

	.site-header .shs-mega-menu-panel::before {
		content: "";
		position: absolute;
		top: 0;
		right: 0;
		left: 0;
		height: 3px;
		background: linear-gradient( 90deg, var(--shs-header-wine), var(--shs-header-rose), rgba(239, 120, 188, 0.24) );
	}

	.site-header .shs-mega-menu-panel.is-open {
		opacity: 1;
		visibility: visible;
		pointer-events: auto;
		transform: translateY(0);
		transition-delay: 0s;
	}

	.site-header .shs-mega-menu-panel__inner {
		width: min(1480px, calc(100% - 64px));
		min-height: 238px;
		margin: 0 auto;
		padding: 34px 0 36px;
		display: grid;
		grid-template-columns: minmax(190px, 0.72fr) minmax(0, 3fr);
		align-items: stretch;
		gap: clamp(30px, 3.6vw, 62px);
	}

	.site-header .shs-mega-menu-panel__heading {
		padding: 3px clamp(24px, 2.2vw, 36px) 3px 0;
		display: flex;
		flex-direction: column;
		justify-content: center;
		border-right: 1px solid rgba(158, 83, 105, 0.14);
	}

	.site-header .shs-mega-menu-panel__eyebrow {
		margin: 0 0 8px;
		color: var(--shs-header-rose);
		font-family: "Oswald", "Noto Sans JP", sans-serif;
		font-size: 10px;
		font-weight: 600;
		letter-spacing: 0.2em;
		text-transform: uppercase;
	}

	.site-header .shs-mega-menu-panel__heading h2 {
		margin: 0;
		color: var(--shs-header-wine);
		font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
		font-size: clamp(24px, 1.8vw, 31px);
		font-weight: 600;
		line-height: 1.35;
		letter-spacing: 0.08em;
	}

	.site-header .shs-mega-menu-panel__overview {
		width: fit-content;
		margin-top: 22px;
		display: inline-flex;
		align-items: center;
		gap: 12px;
		color: var(--shs-header-rose);
		font-family: "Noto Sans JP", sans-serif;
		font-size: 12px;
		font-weight: 700;
		line-height: 1.4;
		text-decoration: none;
		transition: color 0.22s ease, gap 0.28s var(--shs-header-ease);
	}

	.site-header .shs-mega-menu-panel__overview:hover,
	.site-header .shs-mega-menu-panel__overview:focus-visible {
		color: var(--shs-header-rose);
		gap: 17px;
	}

	.site-header .shs-mega-menu-panel__links {
		min-width: 0;
		margin: 0;
		padding: 0;
		display: grid;
		grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
		align-content: center;
		gap: 12px;
		list-style: none;
	}

	.site-header .shs-mega-menu-panel__links li {
		min-width: 0;
	}

	.site-header .shs-mega-menu-panel__links a {
		position: relative;
		min-height: 150px;
		padding: 18px;
		display: grid;
		grid-template-columns: minmax(0, 1fr) auto;
		grid-template-rows: 1fr auto;
		align-items: end;
		gap: 10px 14px;
		overflow: hidden;
		isolation: isolate;
		color: #fff;
		background: var(--shs-header-wine);
		border: 1px solid rgba(158, 83, 105, 0.16);
		border-radius: 16px;
		text-decoration: none;
		box-shadow: 0 10px 24px rgba(158, 83, 105, 0.08);
		transition:
			border-color var(--shs-hover-lift-duration) var(--shs-hover-lift-ease),
			box-shadow var(--shs-hover-lift-duration) var(--shs-hover-lift-ease),
			transform var(--shs-hover-lift-duration) var(--shs-hover-lift-ease);
	}

	.site-header .shs-mega-menu-panel__links a::after {
		content: "";
		position: absolute;
		z-index: 1;
		inset: 0;
		pointer-events: none;
		background: linear-gradient(180deg, rgba(158, 83, 105, 0.08) 14%, rgba(158, 83, 105, 0.78) 100%), linear-gradient(90deg, rgba(158, 83, 105, 0.2), transparent 62%);
		transition: background-color 0.25s ease;
	}

	.site-header .shs-mega-menu-panel__visual {
		position: absolute;
		z-index: 0;
		inset: 0;
		display: block;
		pointer-events: none;
		background-repeat: no-repeat;
		background-size: cover;
		transform: scale(1.01);
		transition: filter 0.35s ease, transform 0.52s var(--shs-header-ease);
	}

	.site-header .shs-mega-menu-panel__links a:hover,
	.site-header .shs-mega-menu-panel__links a:focus-visible {
		color: #fff;
		border-color: rgba(239, 120, 188, 0.56);
		box-shadow: 0 16px 32px rgba(158, 83, 105, 0.18);
		transform: translateY(-4px);
	}

	.site-header .shs-mega-menu-panel__links a:hover .shs-mega-menu-panel__visual,
	.site-header .shs-mega-menu-panel__links a:focus-visible .shs-mega-menu-panel__visual {
		filter: saturate(1.06) brightness(1.05);
		transform: scale(1.075);
	}

	.site-header .shs-mega-menu-panel__number {
		position: absolute;
		z-index: 2;
		top: 14px;
		left: 14px;
		min-width: 31px;
		height: 24px;
		padding: 0 8px;
		display: inline-flex;
		align-items: center;
		justify-content: center;
		color: var(--shs-header-rose);
		background: rgba(255, 255, 255, 0.9);
		border: 1px solid rgba(255, 255, 255, 0.58);
		border-radius: 999px;
		backdrop-filter: blur(8px);
		font-family: "Oswald", sans-serif;
		font-size: 10px;
		font-weight: 600;
		line-height: 1;
		letter-spacing: 0.08em;
	}

	.site-header .shs-mega-menu-panel__copy {
		position: relative;
		z-index: 2;
		min-width: 0;
		display: flex;
		flex-direction: column;
		align-self: end;
	}

	.site-header .shs-mega-menu-panel__copy strong {
		color: #fff;
		font-family: "Noto Sans JP", sans-serif;
		font-size: clamp(14px, 1vw, 16px);
		font-weight: 700;
		line-height: 1.45;
		letter-spacing: 0.045em;
		text-shadow: 0 2px 10px rgba(158, 83, 105, 0.42);
	}

	.site-header .shs-mega-menu-panel__copy small {
		margin-top: 5px;
		overflow: hidden;
		color: rgba(255, 255, 255, 0.78);
		font-family: "Oswald", "Noto Sans JP", sans-serif;
		font-size: 8px;
		font-weight: 500;
		line-height: 1.35;
		letter-spacing: 0.07em;
		text-overflow: ellipsis;
		text-shadow: 0 1px 7px rgba(158, 83, 105, 0.52);
		white-space: nowrap;
		text-transform: uppercase;
	}

	.site-header .shs-mega-menu-panel__arrow {
		position: relative;
		z-index: 2;
		width: 31px;
		height: 31px;
		display: grid;
		place-items: center;
		align-self: end;
		color: var(--shs-header-rose);
		background: rgba(255, 255, 255, 0.9);
		border: 1px solid rgba(255, 255, 255, 0.58);
		border-radius: 50%;
		backdrop-filter: blur(8px);
		font-size: 13px;
		transition: color 0.22s ease, background-color 0.22s ease, border-color 0.22s ease, transform 0.28s var(--shs-header-ease);
	}

	.site-header .shs-mega-menu-panel__links a:hover .shs-mega-menu-panel__arrow,
	.site-header .shs-mega-menu-panel__links a:focus-visible .shs-mega-menu-panel__arrow {
		color: #fff;
		background: var(--shs-header-wine);
		border-color: var(--shs-header-wine);
		transform: translateX(3px);
	}

	.site-header .shs-has-mega-menu.is-mega-open > .shs-mega-menu-trigger {
		color: var(--shs-header-rose);
	}

	.site-header .shs-has-mega-menu.is-mega-open > .shs-mega-menu-trigger .shs-nav-label-en {
		color: #b0588a;
	}

	.site-header .shs-has-mega-menu.is-mega-open > .shs-mega-menu-trigger::after {
		transform: scaleX(1);
	}

	.site-header.is-compact {
		height: var(--shs-header-compact);
		min-height: var(--shs-header-compact);
		background: rgba(255, 255, 255, 0.985);
		box-shadow: 0 9px 26px rgba(158, 83, 105, 0.1);
	}

	.site-header.is-compact .header-inner {
		grid-template-columns: clamp(205px, 15.5vw, 274px) minmax(0, 1fr) auto;
		column-gap: clamp(14px, 1.2vw, 23px);
	}

	.site-header.is-compact .shs-header-brand__mark {
		width: 52px;
		min-width: 52px;
		height: 52px;
		flex-basis: 52px;
	}

	.site-header.is-compact .shs-header-brand__link {
		gap: 11px;
	}

	.site-header.is-compact .shs-header-brand__name {
		font-size: clamp(17px, 1.12vw, 20px);
	}

	.site-header.is-compact .shs-header-brand__en {
		margin-top: 3px;
		font-size: 7.3px;
	}

	.site-header.is-compact .nav01c > li > a::after {
		margin-top: 5px;
	}

	.site-header.is-compact .header-actions .btn {
		min-height: 46px;
		padding-inline: 19px;
	}
}

/**
 * --------------------------------------------------------------------------
 * 6. 狭いデスクトップ幅
 * --------------------------------------------------------------------------
 * 1281〜1440pxではPC用ナビゲーションを維持しつつ、ロゴ・ボタン・余白を
 * 段階的に縮小する。メニュー構造自体はモバイルへ切り替えない。
 */

@media screen and (min-width: 1281px) and (max-width: 1440px) {
	:root {
		--shs-header-large: 88px;
		--shs-header-desktop: 88px;
	}

	.site-header .header-inner {
		width: calc(100% - 24px);
		grid-template-columns: clamp(202px, 16.2vw, 226px) minmax(0, 1fr) auto;
		column-gap: clamp(8px, 0.75vw, 11px);
	}

	.site-header .shs-header-brand__link {
		gap: 9px;
	}

	.site-header .shs-header-brand__mark {
		width: 54px;
		min-width: 54px;
		height: 54px;
		flex-basis: 54px;
	}

	.site-header .shs-header-brand__name {
		font-size: 16.5px;
		letter-spacing: 0.075em;
	}

	.site-header .shs-header-brand__en {
		margin-top: 3px;
		font-size: 6.4px;
		letter-spacing: 0.045em;
	}

	.nav01c {
		gap: clamp(7px, 0.6vw, 10px);
	}

	.site-header .main-nav .shs-nav-label-jp {
		font-size: clamp(11px, 0.86vw, 12px);
		letter-spacing: 0.015em;
	}

	.site-header .main-nav .shs-nav-label-en {
		margin-top: 3px;
		font-size: 7px;
	}

	.nav01c > li > a::after {
		width: 38px;
		margin-top: 5px;
	}

	.site-header .header-actions {
		gap: 7px;
	}

	.site-header .header-actions .btn {
		min-width: 94px;
		min-height: 44px;
		padding-inline: 14px;
		font-size: 11px;
	}

	.site-header .header-actions .btn-outline {
		min-width: 144px;
	}

	.site-header .shs-mega-menu-panel__inner {
		width: calc(100% - 48px);
		gap: 28px;
	}

	.site-header .shs-mega-menu-panel__links {
		grid-template-columns: repeat(auto-fit, minmax(172px, 1fr));
	}

	.site-header.is-compact .header-inner {
		grid-template-columns: clamp(190px, 15vw, 212px) minmax(0, 1fr) auto;
		column-gap: 8px;
	}

	.site-header.is-compact .shs-header-brand__mark {
		width: 48px;
		min-width: 48px;
		height: 48px;
		flex-basis: 48px;
	}

	.site-header.is-compact .shs-header-brand__name {
		font-size: 15.5px;
	}

	.site-header.is-compact .shs-header-brand__en {
		font-size: 6.2px;
	}

	.site-header.is-compact .header-actions .btn {
		min-height: 42px;
		padding-inline: 12px;
	}
}

/**
 * --------------------------------------------------------------------------
 * 7. タブレット・モバイルメニュー
 * --------------------------------------------------------------------------
 * 1280px以下では横並びナビゲーションを収納し、開閉式メニューへ切り替える。
 * この境界値はJavaScript側のナビゲーション判定と一致させる必要があるため、
 * 変更時は `assets/js/shared/navigation/` 配下の定数も同時に確認する。
 */

@media screen and (max-width: 1280px) {
	:root {
		--shs-header-large: 88px;
		--shs-header-desktop: 88px;
	}

	.site-header .header-inner {
		width: min(1320px, calc(100% - 32px));
		display: flex;
		gap: 12px;
	}

	.site-header h1.shs-header-brand {
		min-width: 0;
		margin-right: auto;
	}

	.site-header .shs-header-brand__link {
		gap: 11px;
	}

	.site-header .shs-header-brand__mark {
		width: 58px;
		min-width: 58px;
		height: 58px;
		flex-basis: 58px;
	}

	.site-header .shs-header-brand__name {
		font-size: 18px;
	}

	.site-header .shs-header-brand__en {
		font-size: 7px;
	}

	.site-header .header-actions {
		margin-left: auto;
		gap: 8px;
	}

	.site-header .header-actions .btn {
		min-width: 104px;
		min-height: 44px;
		padding-inline: 15px;
		font-size: 11.5px;
	}

	.site-header .header-actions .btn-outline {
		min-width: 118px;
	}

	.site-header .g-nav-openbtn.menu-toggle {
		position: relative;
		z-index: 1210;
		width: 46px;
		height: 46px;
		margin: 0 0 0 2px;
		padding: 0;
		display: block;
		flex: 0 0 46px;
		border: 0;
		border-radius: 0;
		background: transparent;
		box-shadow: none;
		cursor: pointer;
		transition: opacity 0.18s ease;
	}

	.site-header .g-nav-openbtn.menu-toggle.active {
		opacity: 0;
		pointer-events: none;
	}

	.site-header .g-nav-openbtn.menu-toggle span {
		position: absolute;
		left: 12px;
		width: 22px;
		height: 2px;
		display: block;
		background: var(--shs-header-wine);
		border-radius: 999px;
		transform-origin: center;
		transition: top 0.26s ease, transform 0.26s ease, opacity 0.18s ease;
	}

	.site-header .g-nav-openbtn.menu-toggle span:nth-of-type(1) {
		top: 15px;
	}

	.site-header .g-nav-openbtn.menu-toggle span:nth-of-type(2) {
		top: 22px;
	}

	.site-header .g-nav-openbtn.menu-toggle span:nth-of-type(3) {
		top: 29px;
	}

	.site-header .g-nav-openbtn.menu-toggle.active span:nth-of-type(1) {
		top: 22px;
		transform: rotate(45deg);
	}

	.site-header .g-nav-openbtn.menu-toggle.active span:nth-of-type(2) {
		opacity: 0;
	}

	.site-header .g-nav-openbtn.menu-toggle.active span:nth-of-type(3) {
		top: 22px;
		transform: rotate(-45deg);
	}

	/*
	 * モバイル幅へ切り替わった直後のナビリンク露出を防ぐため、
	 * 閉状態ではvisibilityだけに頼らずdisplay:noneで描画対象から外す。
	 * PC用ナビとモバイルパネルは同じnav要素を共有しているため、
	 * ブレークポイントを跨ぐ瞬間も閉状態のリンクを1フレームも描画しない。
	 */
	.site-header .main-nav.main-nav {
		position: fixed;
		z-index: 1200;
		inset: 0;
		isolation: isolate;
		width: 100vw;
		height: 100dvh;
		padding: 0 26px max(28px, env(safe-area-inset-bottom));
		display: none;
		overflow-y: auto;
		overscroll-behavior: contain;
		color: var(--shs-header-text);
		background: #ffffff;
		opacity: 0;
		visibility: hidden;
		pointer-events: none;
		transform: translateX(26px);
		transition: none;
	}

	/* ユーザーが明示的に開いた場合だけモバイルナビを描画する。 */
	.site-header .main-nav.main-nav.panelactive,
	.site-header .main-nav.main-nav.is-open {
		display: block;
		opacity: 1;
		visibility: visible;
		pointer-events: auto;
		transform: translateX(0);
	}

	.site-header .main-nav.main-nav.is-navigating {
		transform: translateX(0);
		transition: none;
		pointer-events: none;
	}

	.site-header .main-nav.main-nav.is-closing-stationary {
		visibility: hidden;
		transform: translateX(0);
		transition: none;
		pointer-events: none;
	}

	.shs-mobile-nav-head {
		width: min(960px, 100%);
		min-height: 78px;
		margin: 0 auto 24px;
		display: flex;
		align-items: center;
		justify-content: space-between;
		border-bottom: 1px solid var(--shs-header-line);
	}

	.shs-mobile-nav-head__label {
		color: var(--shs-header-rose);
		font-family: "Oswald", sans-serif;
		font-size: 14px;
		letter-spacing: 0.22em;
	}

	.shs-mobile-nav-close {
		position: relative;
		width: 44px;
		height: 44px;
		padding: 0;
		border: 0;
		background: transparent;
		cursor: pointer;
	}

	.shs-mobile-nav-close span {
		position: absolute;
		top: 21px;
		left: 10px;
		width: 24px;
		height: 2px;
		display: block;
		background: var(--shs-header-wine);
		border-radius: 999px;
	}

	.shs-mobile-nav-close span:first-child {
		transform: rotate(45deg);
	}

	.shs-mobile-nav-close span:last-child {
		transform: rotate(-45deg);
	}

	.site-header .main-nav__list {
		width: min(960px, 100%);
		height: auto;
		margin: 0 auto;
	}

	.nav01c {
		width: 100%;
		height: auto;
		display: grid;
		grid-template-columns: repeat(2, minmax(0, 1fr));
		justify-items: stretch;
		align-items: start;
		gap: 12px;
	}

	.nav01c > li {
		min-width: 0;
		width: 100%;
		height: auto;
		flex: initial;
	}

	.nav01c > li > a {
		width: 100%;
		min-height: 88px;
		height: auto;
		padding: 17px 19px;
		align-items: flex-start;
		justify-content: center;
		color: var(--shs-header-text);
		text-align: left;
		background: #ffffff;
		border: 1px solid rgba(158, 83, 105, 0.15);
		border-radius: 15px;
		transition:
			color var(--shs-hover-lift-duration) var(--shs-hover-lift-ease),
			border-color var(--shs-hover-lift-duration) var(--shs-hover-lift-ease),
			background-color var(--shs-hover-lift-duration) var(--shs-hover-lift-ease),
			transform var(--shs-hover-lift-duration) var(--shs-hover-lift-ease);
	}

	.nav01c > li > a:hover,
	.nav01c > li.current > a,
	.nav01c > li.current-menu-item > a,
	.nav01c > li.current-menu-ancestor > a {
		color: var(--shs-header-rose);
		background: rgba(239, 120, 188, .055);
		border-color: rgba(239, 120, 188, 0.42);
		transform: translateY(-2px);
	}

	.site-header .main-nav .shs-nav-label-jp {
		font-size: 15px;
		letter-spacing: 0.025em;
	}

	.site-header .main-nav .shs-nav-label-en {
		margin-top: 6px;
		font-family: "Oswald", sans-serif;
		font-size: 8px;
		letter-spacing: 0.03em;
		text-align: left;
		text-transform: uppercase;
	}

	.nav01c > li > a::after {
		display: none;
	}

	.nav01c > li.has-child > .shs-mega-menu-trigger {
		position: relative;
		padding-right: 50px;
	}

	.nav01c > li.has-child > .shs-mega-menu-trigger::before,
	.nav01c > li.has-child > .shs-mega-menu-trigger::after {
		content: "";
		position: absolute;
		top: 50%;
		right: 20px;
		width: 15px;
		height: 1px;
		margin: 0;
		display: block;
		background: var(--shs-header-wine);
		border: 0;
		border-radius: 999px;
		transition: transform 0.24s ease;
	}

	.nav01c > li.has-child > .shs-mega-menu-trigger::before {
		transform: translateY(-50%);
	}

	.nav01c > li.has-child > .shs-mega-menu-trigger::after {
		transform: translateY(-50%) rotate(90deg);
	}

	.nav01c > li.has-child.active > .shs-mega-menu-trigger::after {
		transform: translateY(-50%) rotate(0deg);
	}

	.site-header .shs-mobile-submenu {
		position: static;
		inset: auto;
		z-index: auto;
		width: 100%;
		margin: 8px 0 0;
		padding: 8px;
		display: none;
		visibility: visible;
		opacity: 1;
		transform: none;
		background: #ffffff;
		border: 1px solid rgba(239, 120, 188, 0.28);
		box-shadow: 0 10px 26px rgba(158, 83, 105, 0.08);
		border-radius: 14px;
		box-sizing: border-box;
		list-style: none;
		transition: none;
	}

	.nav01c > li.has-child.active {
		grid-column: 1 / -1;
	}

	.site-header .shs-mobile-submenu li + li {
		border-top: 1px solid rgba(158, 83, 105, 0.09);
	}

	.site-header .shs-mobile-submenu a {
		min-height: 54px;
		padding: 11px 13px;
		display: flex;
		align-items: center;
		justify-content: space-between;
		gap: 14px;
		color: var(--shs-header-text);
		font-family: "Noto Sans JP", sans-serif;
		font-size: 13px;
		font-weight: 600;
		line-height: 1.4;
		text-decoration: none;
	}

	.site-header .shs-mobile-submenu a::after {
		content: "→";
		flex: 0 0 auto;
		color: var(--shs-header-rose);
		font-size: 12px;
	}

	.site-header .shs-mobile-submenu a > span {
		min-width: 0;
	}

	.site-header .shs-mobile-submenu a small {
		margin-left: auto;
		color: var(--shs-header-muted);
		font-family: "Oswald", sans-serif;
		font-size: 7px;
		font-weight: 500;
		letter-spacing: 0.035em;
		text-transform: uppercase;
	}

	.site-header .shs-mobile-submenu__overview a {
		color: var(--shs-header-rose);
		font-weight: 700;
	}

	.shs-mobile-nav-cta {
		width: min(960px, 100%);
		margin: 18px auto 0;
		display: grid;
		grid-template-columns: repeat(3, minmax(0, 1fr));
		gap: 10px;
	}

	.shs-mobile-nav-cta__item {
		min-height: 64px;
		padding: 13px 16px;
		display: flex;
		align-items: center;
		justify-content: space-between;
		gap: 10px;
		color: var(--shs-header-rose);
		background: #ffffff;
		border: 1px solid rgba(158, 83, 105, 0.18);
		border-radius: 14px;
		font-family: "Noto Sans JP", sans-serif;
		font-size: 14px;
		font-weight: 700;
		text-decoration: none;
		transition:
			color var(--shs-hover-lift-duration) var(--shs-hover-lift-ease),
			background-color var(--shs-hover-lift-duration) var(--shs-hover-lift-ease),
			border-color var(--shs-hover-lift-duration) var(--shs-hover-lift-ease),
			transform var(--shs-hover-lift-duration) var(--shs-hover-lift-ease);
	}

	.shs-mobile-nav-cta__item small {
		color: var(--shs-header-wine);
		font-family: "Oswald", sans-serif;
		font-size: 7px;
		letter-spacing: 0.04em;
	}

	.shs-mobile-nav-cta__item:hover {
		transform: translateY(-2px);
	}

	.shs-mobile-nav-cta__item--event:hover,
	.shs-mobile-nav-cta__item--contact:hover {
		background: rgba(239, 120, 188, .055);
		border-color: rgba(239, 120, 188, 0.46);
	}

	.shs-mobile-nav-cta__item--consultation {
		color: #fff;
		background: linear-gradient(135deg, var(--shs-header-wine), var(--shs-header-rose));
		border-color: transparent;
	}

	.shs-mobile-nav-cta__item--consultation small {
		color: rgba(255, 255, 255, 0.72);
	}

	html.shs-nav-lock,
	body.shs-nav-lock {
		overflow: hidden;
	}

	.shs-about-family,
	.shs-lower-page-main,
	.sub-page-main.shs-lower-page-main,
	.shs-admissions-family {
		padding-top: var(--shs-header-desktop);
	}
}

@media screen and (max-width: 960px) {
	:root {
		--shs-header-large: 82px;
		--shs-header-small: 82px;
		--shs-header-desktop: 82px;
		--shs-header-mobile: 82px;
	}

	.site-header .header-inner {
		width: calc(100% - 24px);
	}

	.site-header .shs-header-brand__mark {
		width: 54px;
		min-width: 54px;
		height: 54px;
		flex-basis: 54px;
	}

	.site-header .shs-header-brand__name {
		font-size: 17px;
	}

	.site-header .shs-header-brand__en {
		font-size: 6.6px;
	}

	.site-header .header-actions .btn {
		min-width: 94px;
		min-height: 42px;
		padding-inline: 13px;
		font-size: 10.8px;
	}

	.site-header .header-actions .btn-outline {
		min-width: 144px;
	}

	.site-header .main-nav.main-nav {
		padding-inline: 18px;
	}

	.shs-mobile-nav-head,
	.site-header .main-nav__list,
	.shs-mobile-nav-cta {
		width: min(720px, 100%);
	}
}

@media screen and (max-width: 782px) {
	body.admin-bar .site-header {
		top: 0;
	}
}

@media screen and (max-width: 760px) {
	:root {
		--shs-header-large: 72px;
		--shs-header-small: 72px;
		--shs-header-desktop: 72px;
		--shs-header-mobile: 72px;
		--shs-header-mobile-small: 72px;
	}

	.site-header .header-inner {
		width: calc(100% - 20px);
	}

	.site-header .shs-header-brand__link {
		gap: 8px;
	}

	.site-header .shs-header-brand__mark {
		width: 48px;
		min-width: 48px;
		height: 48px;
		flex-basis: 48px;
	}

	.site-header .shs-header-brand__name {
		font-size: 15.5px;
		letter-spacing: 0.075em;
	}

	.site-header .shs-header-brand__en {
		margin-top: 3px;
		font-size: 5.8px;
	}

	.site-header .header-actions .btn {
		display: none;
	}

	.site-header .header-actions {
		margin-left: auto;
	}

	.site-header .main-nav.main-nav {
		padding: 0 14px max(24px, env(safe-area-inset-bottom));
	}

	.shs-mobile-nav-head {
		min-height: 68px;
		margin-bottom: 18px;
	}

	.nav01c {
		grid-template-columns: 1fr;
		gap: 9px;
	}

	.nav01c > li > a {
		min-height: 66px;
		padding: 12px 15px;
		border-radius: 12px;
	}

	.site-header .main-nav .shs-nav-label-jp {
		font-size: 14px;
	}

	.site-header .main-nav .shs-nav-label-en {
		margin-top: 4px;
		font-size: 7px;
	}

	.shs-mobile-nav-cta {
		grid-template-columns: 1fr;
		gap: 8px;
		margin-top: 14px;
	}

	.shs-mobile-nav-cta__item {
		min-height: 58px;
		border-radius: 12px;
	}

	.shs-about-family,
	.shs-lower-page-main,
	.sub-page-main.shs-lower-page-main,
	.shs-admissions-family,
	body.error404 .site-main {
		padding-top: var(--shs-header-mobile-small);
	}
}

@media screen and (max-width: 430px) {
	.site-header .shs-header-brand__en {
		display: none;
	}

	.site-header .shs-header-brand__name {
		font-size: 15px;
	}
}

@media (prefers-reduced-motion: reduce) {
	.site-header,
	.site-header *,
	.site-header *::before,
	.site-header *::after {
		scroll-behavior: auto;
		transition-duration: 0.01ms;
		animation-duration: 0.01ms;
		animation-iteration-count: 1;
	}
}

/**
 * スマートフォン固定導線
 *
 * PC・タブレットヘッダーのCTAが非表示になる760px以下だけ、画面右下に縦型の固定リンクを表示する。
 * ヘッダー内にオンライン説明会・お問い合わせが表示されている幅では重複CTAを出さない。
 * 端末の下部UIと重ならないよう安全域を確保し、モバイルメニューより低い重なり順を維持する。
 */
.shs-mobile-fixed-actions {
	display: none;
}

@media screen and (max-width: 760px) {
	.shs-mobile-fixed-actions {
		position: fixed;
		right: 0;
		bottom: max(18px, env(safe-area-inset-bottom));
		z-index: 70;
		display: grid;
		gap: 6px;
		transform: none;
	}

	.shs-mobile-fixed-actions__item {
		display: flex;
		width: 42px;
		min-height: 122px;
		align-items: center;
		justify-content: center;
		padding: 10px 6px;
		border: 1px solid rgba(239, 120, 188, 0.72);
		border-right: 0;
		border-radius: 12px 0 0 12px;
		background: rgba(255, 255, 255, 0.96);
		box-shadow: 0 8px 24px rgba(158, 83, 105, 0.16);
		color: var(--shs-pink);
		font-size: 11px;
		font-weight: 700;
		line-height: 1.35;
		text-align: center;
		text-decoration: none;
		writing-mode: vertical-rl;
	}

	.shs-mobile-fixed-actions__item--briefing {
		background: var(--shs-pink);
		color: #fff;
	}
}