/**
 * About page – 学校紹介
 */

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

/* ==========================================================================
   Shared section title
   ========================================================================== */

.about-section-title {
	font-size: clamp(1.375rem, 2.8vw, var(--font-size-2xl));
	font-weight: var(--font-weight-bold);
	color: var(--color-text-primary);
	line-height: var(--line-height-tight);
	letter-spacing: 0.02em;
}

.about-section-title--center {
	text-align: center;
}

/* ==========================================================================
   01 FV
   ========================================================================== */

.about-fv {
	position: relative;
	background: linear-gradient(180deg, var(--color-bg-white) 0%, var(--color-bg-hero) 60%, var(--color-bg-lavender-light) 100%);
	padding-top: var(--space-2xl);
	padding-bottom: 0;
	min-height: 520px;
	overflow: hidden;
}

.about-fv__bg {
	position: absolute;
	inset: 0;
	pointer-events: none;
}

.about-fv__deco--leaves {
	position: absolute;
	top: 48px;
	left: max(2%, calc((100% - var(--container-max)) / 2 - 40px));
	opacity: 0.9;
}

.about-fv__deco--tree {
	position: absolute;
	bottom: 80px;
	right: max(2%, calc((100% - var(--container-max)) / 2 - 60px));
	opacity: 0.35;
	width: clamp(80px, 10vw, 120px);
	height: auto;
}

.about-fv__inner {
	position: relative;
	display: grid;
	grid-template-columns: 1fr 1fr;
	align-items: center;
	gap: var(--space-2xl);
	padding-bottom: var(--space-3xl);
	min-height: 460px;
}

.about-fv__content {
	position: relative;
	padding-top: var(--space-lg);
}

.about-fv__label {
	display: inline-block;
	font-size: var(--font-size-sm);
	font-weight: var(--font-weight-medium);
	color: var(--color-primary-light);
	letter-spacing: 0.12em;
	margin-bottom: var(--space-md);
	padding: 0.35rem 1rem;
	background: rgba(255, 255, 255, 0.7);
	border: 1px solid var(--color-border-light);
	border-radius: var(--radius-pill);
}

.about-fv__deco--bird {
	position: absolute;
	top: 0;
	left: 140px;
	z-index: 2;
}

.about-fv__catch {
	font-size: clamp(1.75rem, 4vw, var(--font-size-hero));
	font-weight: var(--font-weight-bold);
	color: var(--color-text-primary);
	line-height: var(--line-height-tight);
	letter-spacing: 0.02em;
}

.about-fv__visual {
	position: relative;
	display: flex;
	justify-content: center;
	align-items: center;
}

.about-fv__visual-accent {
	position: absolute;
	top: -16px;
	right: -16px;
	width: calc(100% + 32px);
	height: calc(100% + 32px);
	background-color: var(--color-bg-lavender);
	border-radius: var(--radius-xl);
	z-index: 0;
}

.about-fv__visual-frame {
	position: relative;
	z-index: 1;
	width: 100%;
	max-width: 480px;
}

.about-fv__image {
	width: 100%;
	aspect-ratio: 4 / 3;
	object-fit: cover;
	border-radius: var(--radius-xl);
	box-shadow: var(--shadow-md);
}

.about-fv__wave {
	position: relative;
	margin-top: -1px;
	line-height: 0;
}

.about-fv__wave svg {
	display: block;
	width: 100%;
	height: 64px;
}

/* ==========================================================================
   02 Vision
   ========================================================================== */

.about-vision {
	padding-block: var(--space-4xl);
	background: var(--color-bg-white);
}

.about-vision__header {
	position: relative;
	text-align: center;
	max-width: none;
	margin-inline: auto;
	margin-bottom: var(--space-3xl);
}

#about-vision-title {
	white-space: nowrap;
}

.about-vision__title-line {
	display: inline;
}

.about-vision__deco--butterflies {
	position: absolute;
	top: -12px;
	left: -20px;
	opacity: 0.85;
}

.about-vision__body {
	display: grid;
	grid-template-columns: minmax(260px, 0.9fr) 1fr;
	gap: clamp(2rem, 5vw, 4rem);
	align-items: start;
}

.about-vision__photo-wrap {
	position: relative;
	max-width: 320px;
}

.about-vision__photo-accent {
	position: absolute;
	top: -12px;
	left: -12px;
	width: calc(100% + 24px);
	height: calc(100% + 24px);
	background: var(--color-bg-lavender-light);
	z-index: 0;
}

.about-vision__photo {
	position: relative;
	z-index: 1;
	width: 100%;
	border-radius: 0;
	box-shadow: var(--shadow-md);
}

.about-vision__photo-deco {
	position: absolute;
	bottom: -16px;
	right: -12px;
	z-index: 2;
	width: clamp(72px, 12vw, 100px);
	height: auto;
}

.about-vision__text {
	display: flex;
	flex-direction: column;
	gap: var(--space-lg);
	padding-top: var(--space-md);
}

.about-vision__paragraph {
	font-size: var(--font-size-md);
	color: var(--color-text-body);
	line-height: var(--line-height-loose);
}

.about-vision__paragraph--lead {
	font-size: clamp(1rem, 2vw, var(--font-size-lg));
	font-weight: var(--font-weight-medium);
	color: var(--color-text-primary);
}

/* ==========================================================================
   03 Principal
   ========================================================================== */

.about-principal {
	position: relative;
	padding-block: var(--space-4xl);
	background:
		radial-gradient(ellipse 60% 50% at 20% 30%, rgba(243, 236, 250, 0.8) 0%, transparent 70%),
		linear-gradient(180deg, var(--color-bg-lavender-light) 0%, var(--color-bg-white) 100%);
	overflow: hidden;
}

.about-principal__bg-deco {
	position: absolute;
	top: 10%;
	right: 5%;
	opacity: 0.2;
	pointer-events: none;
}

.about-principal__inner {
	position: relative;
}

.about-principal .about-section-title {
	margin-bottom: var(--space-3xl);
}

.about-principal__grid {
	display: grid;
	grid-template-columns: minmax(260px, 0.85fr) 1fr;
	gap: clamp(2rem, 5vw, 4rem);
	align-items: center;
}

.about-principal__photo-wrap {
	position: relative;
	max-width: 260px;
	justify-self: center;
}

.about-principal__photo-frame {
	position: relative;
	border-radius: 0;
	overflow: hidden;
	box-shadow: var(--shadow-md);
	background: var(--color-bg-lavender);
}

.about-principal__photo-frame::before {
	content: '';
	position: absolute;
	inset: 0;
	border: 3px solid rgba(255, 255, 255, 0.6);
	border-radius: inherit;
	pointer-events: none;
	z-index: 1;
}

.about-principal__photo {
	display: block;
	width: 100%;
	height: auto;
	object-fit: cover;
}

.about-principal__deco--leaf {
	position: absolute;
	bottom: -8px;
	left: -16px;
	width: 64px;
	height: auto;
	filter: drop-shadow(0 2px 4px rgba(91, 39, 132, 0.1));
}

.about-principal__message {
	display: flex;
	flex-direction: column;
	gap: var(--space-lg);
	font-size: var(--font-size-md);
	color: var(--color-text-body);
	line-height: var(--line-height-loose);
}

.about-principal__lead {
	font-size: clamp(1rem, 2vw, var(--font-size-lg));
	font-weight: var(--font-weight-medium);
	color: var(--color-text-primary);
}

.about-principal__sign {
	margin-top: var(--space-sm);
	font-weight: var(--font-weight-medium);
	color: var(--color-text-primary);
	text-align: right;
}

/* ==========================================================================
   04 Policies
   ========================================================================== */

.about-policies {
	padding-block: var(--space-4xl);
	background: #FBF9F4;
}

.about-policies__header {
	position: relative;
	text-align: center;
	margin-bottom: var(--space-3xl);
}

.about-policies__deco {
	position: absolute;
	top: -8px;
	right: calc(50% - 200px);
	opacity: 0.9;
}

.about-policies__grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: var(--space-xl);
}

.about-policy-card {
	display: flex;
	flex-direction: column;
	background: var(--color-bg-white);
	border-radius: var(--radius-lg);
	overflow: hidden;
	box-shadow: var(--shadow-sm);
	border: 1px solid var(--color-border-light);
	transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.about-policy-card:hover {
	transform: translateY(-4px);
	box-shadow: var(--shadow-md);
}

.about-policy-card__visual {
	position: relative;
	aspect-ratio: 4 / 3;
	overflow: hidden;
	background: var(--color-bg-lavender-light);
}

.about-policy-card__photo {
	width: 100%;
	height: 100%;
	object-fit: cover;
	opacity: 0.85;
}

.about-policy-card__num {
	position: absolute;
	top: var(--space-md);
	left: var(--space-md);
	font-size: var(--font-size-2xl);
	font-weight: var(--font-weight-bold);
	color: var(--color-primary);
	line-height: 1;
	opacity: 0.35;
}

.about-policy-card__icon {
	position: absolute;
	bottom: var(--space-md);
	right: var(--space-md);
	width: 48px;
	height: 48px;
	padding: 8px;
	background: rgba(255, 255, 255, 0.92);
	border-radius: 50%;
	box-shadow: var(--shadow-sm);
}

.about-policy-card__body {
	padding: var(--space-lg) var(--space-xl) var(--space-xl);
}

.about-policy-card__title {
	font-size: var(--font-size-lg);
	font-weight: var(--font-weight-bold);
	color: var(--color-text-primary);
	margin-bottom: var(--space-sm);
}

.about-policy-card__text {
	font-size: var(--font-size-sm);
	color: var(--color-text-body);
	line-height: var(--line-height-loose);
}

/* ==========================================================================
   05 Pledge
   ========================================================================== */

.about-pledge {
	padding-block: var(--space-4xl);
	background: linear-gradient(180deg, #F7F4FA 0%, #FDFCFA 100%);
	border-block: 1px solid var(--color-border-divider);
}

.about-pledge__grid {
	display: grid;
	grid-template-columns: minmax(220px, 0.75fr) 1fr;
	gap: clamp(2rem, 5vw, 3.5rem);
	align-items: center;
}

.about-pledge__visual {
	position: relative;
	text-align: center;
}

.about-pledge__image {
	width: 100%;
	max-width: 320px;
	border-radius: var(--radius-md);
	box-shadow: 0 4px 24px rgba(91, 39, 132, 0.1);
}

.about-pledge__deco {
	position: absolute;
	bottom: -12px;
	right: 0;
	width: clamp(80px, 14vw, 120px);
	height: auto;
	opacity: 0.8;
}

.about-pledge__content .about-section-title {
	margin-bottom: var(--space-xl);
}

.about-pledge__text {
	font-size: var(--font-size-md);
	color: var(--color-text-body);
	line-height: var(--line-height-loose);
	margin-bottom: var(--space-lg);
}

.about-pledge__note {
	font-size: var(--font-size-sm);
	color: #666;
	line-height: var(--line-height-loose);
	padding-left: var(--space-lg);
	border-left: 3px solid var(--color-border-light);
}

/* ==========================================================================
   06 Learning bridge
   ========================================================================== */

.about-learning {
	padding-block: var(--space-4xl);
	background: var(--color-bg-white);
}

.about-learning__header {
	text-align: center;
	margin-bottom: var(--space-3xl);
}

.about-learning__lead {
	margin-top: var(--space-md);
	font-size: var(--font-size-sm);
	color: #666;
	line-height: var(--line-height-loose);
}

.about-learning__grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: var(--space-md);
	list-style: none;
	margin: 0;
	padding: 0;
	max-width: 900px;
	margin-inline: auto;
}

.about-learning__card {
	display: flex;
	align-items: center;
	gap: var(--space-md);
	padding: var(--space-lg) var(--space-xl);
	background: var(--color-bg-lavender-light);
	border: 1px solid var(--color-border-light);
	border-radius: var(--radius-md);
	color: inherit;
}

.about-learning__icon {
	flex-shrink: 0;
	width: 40px;
	height: 40px;
}

.about-learning__card-text {
	flex: 1;
	min-width: 0;
	display: flex;
	flex-direction: column;
	gap: 0.25rem;
}

.about-learning__card-title {
	font-size: var(--font-size-base);
	font-weight: var(--font-weight-bold);
	color: var(--color-text-primary);
}

.about-learning__card-teaser {
	font-size: var(--font-size-xs);
	color: #666;
	line-height: 1.5;
}

/* ==========================================================================
   07 CTA (extends bottom-cta)
   ========================================================================== */

.about-cta.bottom-cta {
	border-bottom: none;
}

.about-cta .bottom-cta__title {
	font-size: clamp(1.25rem, 2.5vw, 1.75rem);
	max-width: 28em;
	margin-inline: auto;
}

.about-cta .bottom-cta__lead {
	display: none;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1024px) {
	.about-policies__grid {
		grid-template-columns: 1fr;
		max-width: 480px;
		margin-inline: auto;
	}

	.about-policies__deco {
		right: 10%;
	}
}

@media (max-width: 767px) {
	.about-fv {
		min-height: auto;
		padding-top: var(--space-xl);
	}

	.about-fv__inner {
		grid-template-columns: 1fr;
		gap: var(--space-xl);
		min-height: auto;
		padding-bottom: var(--space-2xl);
	}

	.about-fv__content {
		text-align: center;
		padding-top: 0;
	}

	.about-fv__deco--bird {
		left: calc(50% + 40px);
		top: -4px;
		width: 56px;
		height: auto;
	}

	.about-fv__deco--leaves {
		top: 24px;
		left: 4%;
		width: 120px;
		height: auto;
	}

	.about-fv__deco--tree {
		display: none;
	}

	.about-fv__visual {
		order: -1;
	}

	.about-fv__visual-accent {
		top: -10px;
		right: -10px;
	}

	.about-fv__visual-frame {
		max-width: 100%;
	}

	.about-fv__wave svg {
		height: 40px;
	}

	.about-vision__body,
	.about-principal__grid,
	.about-pledge__grid {
		grid-template-columns: 1fr;
	}

	.about-vision__header {
		margin-bottom: var(--space-xl);
		max-width: none;
	}

	.about-vision__header .about-section-title {
		font-size: clamp(1.25rem, 5vw, 1.5rem);
	}

	#about-vision-title {
		white-space: normal;
	}

	.about-vision__title-line {
		display: inline-block;
		white-space: nowrap;
	}

	.about-vision__body {
		gap: var(--space-xl);
		justify-items: center;
	}

	.about-vision__photo-wrap {
		max-width: 220px;
		margin-inline: auto;
	}

	.about-vision__photo {
		aspect-ratio: 3 / 4;
		object-fit: cover;
		height: auto;
	}

	.about-vision__photo-deco {
		width: 64px;
		bottom: -10px;
		right: -8px;
	}

	.about-vision__text {
		padding-top: 0;
		gap: var(--space-md);
		max-width: 36em;
	}

	.about-vision__paragraph {
		font-size: var(--font-size-sm);
	}

	.about-vision__deco--butterflies {
		left: 0;
		width: 60px;
	}

	.about-principal .about-section-title {
		margin-bottom: var(--space-xl);
		font-size: clamp(1.25rem, 5vw, 1.5rem);
		max-width: 18em;
		margin-inline: auto;
	}

	.about-principal__grid {
		gap: var(--space-xl);
		justify-items: center;
	}

	.about-principal__photo-wrap {
		max-width: 200px;
		margin-inline: auto;
	}

	.about-principal__photo {
		aspect-ratio: 3 / 4;
		object-fit: cover;
		height: auto;
	}

	.about-principal__deco--leaf {
		width: 48px;
		left: -10px;
		bottom: -4px;
	}

	.about-principal__message {
		gap: var(--space-md);
		font-size: var(--font-size-sm);
		max-width: 36em;
	}

	.about-principal__sign {
		text-align: right;
		margin-top: var(--space-xs);
	}

	.about-pledge__grid {
		gap: var(--space-xl);
		justify-items: center;
	}

	.about-pledge__visual {
		order: 2;
		margin-bottom: 0;
		width: 100%;
	}

	.about-pledge__image {
		max-width: 200px;
		margin-inline: auto;
	}

	.about-pledge__content {
		display: contents;
	}

	.about-pledge__content .about-section-title {
		order: 1;
		text-align: center;
		margin-bottom: 0;
		font-size: clamp(1.25rem, 5vw, 1.5rem);
		max-width: 20em;
	}

	.about-pledge__text {
		order: 3;
		font-size: var(--font-size-sm);
		margin-bottom: 0;
		max-width: 36em;
	}

	.about-pledge__note {
		order: 4;
		padding-left: var(--space-md);
		max-width: 36em;
	}

	.about-policies__grid {
		display: flex;
		gap: var(--space-md);
		max-width: none;
		margin-inline: calc(-1 * var(--container-padding, 20px));
		padding-inline: var(--container-padding, 20px);
		padding-bottom: var(--space-sm);
		overflow-x: auto;
		scroll-snap-type: x mandatory;
		-webkit-overflow-scrolling: touch;
		scrollbar-width: thin;
	}

	.about-policy-card {
		flex: 0 0 min(78vw, 280px);
		scroll-snap-align: start;
	}

	.about-policy-card:hover {
		transform: none;
	}

	.about-learning__grid {
		grid-template-columns: 1fr;
	}

	.about-learning__card {
		padding: var(--space-md) var(--space-lg);
	}

	.about-cta .bottom-cta__inner {
		grid-template-columns: 1fr;
		min-height: auto;
		text-align: center;
	}

	.about-cta .bottom-cta__actions {
		flex-direction: column;
		align-items: center;
	}

	.about-cta .bottom-cta__btn {
		width: auto;
		min-width: 0;
		white-space: normal;
	}
}