.landing {
	grid-column: 1 / -1;
	display: flex;
	flex-direction: column;
	margin: -30px -50px;
	overflow-x: hidden;
}

.landing__hero {
	display: grid;
	grid-template-columns: 1fr auto;
	align-items: center;
	gap: 40px;
	padding: 80px 80px 60px;
	position: relative;
	max-width: 1200px;
	margin: 0 auto;
}

.landing__hero-kanji {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -55%);
	font-size: 20rem;
	font-weight: 600;
	line-height: 1;
	letter-spacing: 0.2em;
	color: var(--color-gray-100);
	user-select: none;
	pointer-events: none;
	white-space: nowrap;
	z-index: 0;
}

.landing__hero-content {
	position: relative;
	z-index: 1;
	display: flex;
	flex-direction: column;
	align-items: flex-start;
}

.landing__hero-eyebrow {
	font-size: var(--size-med);
	font-weight: 500;
	text-transform: uppercase;
	letter-spacing: 0.15em;
	color: var(--color-seiji-600);
	margin: 0 0 var(--spacing-lg);
}

.landing__hero-headline {
	font-size: 3.6rem;
	font-weight: 800;
	color: var(--color-gray-900);
	margin: 0 0 var(--spacing-xl);
	max-width: 560px;
	line-height: 1.06;
	letter-spacing: 0;
}

.landing__hero-subtitle {
	font-size: var(--size-2xl);
	color: var(--color-gray-500);
	margin: 0 0 48px;
	max-width: 480px;
	line-height: 1.6;
	font-weight: 400;
}

.landing__hero-actions {
	display: flex;
	gap: var(--spacing-sm);
	align-items: center;
}

.landing__hero-visual {
	position: relative;
	z-index: 1;
	display: flex;
	justify-content: center;
	align-items: flex-end;
	align-self: end;
}

.landing__hero-image {
	max-height: 560px;
	width: auto;
	filter: drop-shadow(0 12px 32px rgb(0 0 0 / 8%));
}

.landing__features {
	padding: 90px 50px;
	border-top: 1px solid var(--color-gray-100);
}

.landing__section-subtitle {
	margin-bottom: 56px;
}

.landing__features-grid {
	max-width: 1000px;
	margin: 0 auto;
}

.landing__feature-card {
	padding: 44px 40px;
	gap: 16px;
	transition:
		background-color var(--motion-fast) var(--ease-standard),
		box-shadow var(--motion-fast) var(--ease-standard),
		filter var(--motion-fast) var(--ease-standard);
}

.landing__feature-card:hover,
.landing__feature-card:active {
	background-color: var(--card-hover-bg);
	box-shadow: var(--card-hover-shadow-soft);
	filter: var(--card-hover-filter);
}

.landing__feature-icon {
	width: 36px;
	height: 36px;
	background: linear-gradient(115deg, var(--color-seiji-400), var(--color-matcha-400));
	flex-shrink: 0;
	mask-size: contain;
	mask-repeat: no-repeat;
	mask-position: center;
}

.landing__feature-icon--trees {
	mask-image: url("/assets/icons/icon-hierarchy-circle-01.svg");
}

.landing__feature-icon--components {
	mask-image: url("/assets/icons/icon-puzzle.svg");
}

.landing__feature-icon--reviews {
	mask-image: url("/assets/icons/icon-chat.svg");
}

.landing__feature-icon--progress {
	mask-image: url("/assets/icons/level-badge.svg");
}

.landing__feature-title {
	font-size: var(--size-3xl);
	font-weight: 600;
	color: var(--color-gray-900);
	margin: 0;
	line-height: 1.2;
}

.landing__feature-description {
	font-size: var(--size-xl);
	color: var(--color-gray-500);
	line-height: 1.6;
	margin: 0;
}

.landing__method {
	padding: 90px 50px;
	border-top: 1px solid var(--color-gray-100);
	background: var(--color-gray-50);
}

.landing__method-content {
	max-width: 960px;
	margin: 0 auto;
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 72px;
	align-items: center;
}

.landing__method-text {
	display: flex;
	flex-direction: column;
	gap: 32px;
}

.landing__steps {
	display: flex;
	flex-direction: column;
	gap: 32px;
	counter-reset: step;
}

.landing__step {
	display: flex;
	gap: 20px;
	align-items: flex-start;
	counter-increment: step;
}

.landing__step-marker {
	width: 40px;
	height: 40px;
	border-radius: 50%;
	border: none;
	display: flex;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
	font-size: var(--size-med);
	font-weight: 700;
	color: var(--color-white);
	background: linear-gradient(135deg, var(--color-seiji-400), var(--color-matcha-400));
	box-shadow: 0 2px 8px oklch(76% 0.1 209.06deg / 20%);
}

.landing__step-body {
	display: flex;
	flex-direction: column;
	gap: 6px;
	padding-top: 7px;
}

.landing__step-label {
	font-size: var(--size-xl);
	font-weight: 600;
	color: var(--color-gray-800);
	margin: 0;
}

.landing__step-text {
	font-size: var(--size-lg);
	color: var(--color-gray-400);
	margin: 0;
	line-height: 1.55;
}

.landing__method-visual {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: var(--spacing-sm);
}

.landing__example-caption {
	font-size: var(--size-med);
	color: var(--color-gray-400);
	margin: 0;
	text-align: center;
	line-height: 1.5;
}

.landing__tree-example {
	position: relative;
	display: grid;
	grid-template-rows: auto auto;
	justify-items: center;
	padding: 48px 32px;
	background: var(--color-gray-50);
	border: 1px solid var(--color-gray-100);
	border-radius: var(--radius-lg);
	corner-shape: squircle;
}

.landing__tree-root-row {
	position: relative;
	margin-bottom: 24px;
}

.landing__tree-root-row::after {
	content: "";
	position: absolute;
	bottom: -24px;
	left: 50%;
	margin-left: -1px;
	width: 2px;
	height: 24px;
	background: var(--color-seiji-400);
}

.landing__tree-branches {
	display: flex;
}

.landing__tree-branch {
	flex: 1;
	display: flex;
	flex-direction: column;
	align-items: center;
	position: relative;
	padding: 24px 8px 0;
}

.landing__tree-branch::before,
.landing__tree-branch::after {
	content: "";
	position: absolute;
	top: 0;
	width: calc(50% + 1px);
	border-top: 2px solid var(--color-seiji-400);
}

.landing__tree-branch::before {
	left: 0;
}

.landing__tree-branch::after {
	right: 0;
}

.landing__tree-branch:first-child::before {
	display: none;
}

.landing__tree-branch:last-child::after {
	display: none;
}

.landing__tree-card--child::before {
	content: "";
	position: absolute;
	top: -24px;
	left: 50%;
	margin-left: -1px;
	width: 2px;
	height: 24px;
	background: var(--color-seiji-400);
}

.landing__tree-card {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 2px;
	width: 88px;
	padding: 14px 8px 12px;
	background: var(--color-white);
	border: 2px solid var(--color-gray-200);
	border-radius: var(--radius-md);
	corner-shape: squircle;
	box-shadow:
		0 1px 3px rgb(0 0 0 / 4%),
		0 4px 12px rgb(0 0 0 / 3%);
	position: relative;
}

.landing__tree-card--root {
	width: 100px;
	border-color: var(--color-seiji-400);
	background: linear-gradient(180deg, var(--color-white) 60%, var(--color-seiji-50) 100%);
	box-shadow:
		0 1px 3px rgb(0 0 0 / 4%),
		0 4px 16px oklch(76% 0.1 209.06deg / 10%),
		0 0 0 1px oklch(76% 0.1 209.06deg / 5%);
	padding: 16px 8px 12px;
}

.landing__tree-card--root .landing__tree-char {
	font-size: var(--size-5xl);
}

.landing__tree-card--child {
	border-color: var(--color-seiji-300);
	transition:
		background-color var(--motion-fast) var(--ease-standard),
		border-color var(--motion-fast) var(--ease-standard),
		box-shadow var(--motion-fast) var(--ease-standard),
		filter var(--motion-fast) var(--ease-standard);
}

.landing__tree-card--child:hover,
.landing__tree-card--child:active {
	background: var(--color-seiji-50);
	border-color: var(--color-seiji-400);
	box-shadow:
		0 1px 3px rgb(0 0 0 / 4%),
		0 8px 22px oklch(76% 0.1 209.06deg / 16%),
		0 0 0 1px oklch(76% 0.1 209.06deg / 14%);
	filter: var(--card-hover-filter);
}

.landing__tree-char {
	font-size: var(--size-4xl);
	font-weight: 500;
	line-height: 1.1;
	color: var(--color-gray-900);
}

.landing__tree-reading {
	font-size: var(--size-med);
	font-weight: 600;
	color: var(--color-seiji-600);
	line-height: 1.2;
}

.landing__tree-meaning {
	font-size: var(--size-sm);
	color: var(--color-gray-400);
	line-height: 1.2;
}

.landing__pricing {
	padding: 90px 50px;
	border-top: 1px solid var(--color-gray-100);
}

.landing__pricing-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 20px;
	max-width: 660px;
	margin: 0 auto;
}

.landing__pricing-grid--three {
	grid-template-columns: repeat(3, 1fr);
	max-width: 960px;
}

.landing__pricing-card {
	border-radius: var(--radius-md);
	corner-shape: squircle;
	padding: 44px 40px;
	display: flex;
	flex-direction: column;
	gap: 14px;
	position: relative;
	background: var(--color-white);
	border: 1px solid var(--color-gray-200);
	transition:
		background-color var(--motion-fast) var(--ease-standard),
		border-color var(--motion-fast) var(--ease-standard),
		box-shadow var(--motion-fast) var(--ease-standard),
		filter var(--motion-fast) var(--ease-standard);
}

.landing__pricing-card:hover,
.landing__pricing-card:active {
	background: var(--color-white);
	border-color: var(--color-seiji-200);
	box-shadow: var(--card-hover-shadow);
	filter: var(--card-hover-filter);
}

.landing__pricing-card--featured {
	border-color: var(--color-seiji-300);
	box-shadow: 0 0 0 1px var(--color-seiji-300);
}

.landing__pricing-card--featured:hover,
.landing__pricing-card--featured:active {
	box-shadow:
		0 0 0 1px var(--color-seiji-300),
		0 8px 32px rgb(0 0 0 / 8%);
}

.landing__pricing-badge {
	position: absolute;
	top: -11px;
	left: 40px;
	background: linear-gradient(115deg, var(--color-seiji-400), var(--color-matcha-400));
	color: var(--color-white);
	font-size: var(--size-xs);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	padding: 3px 12px;
	border-radius: 999px;
}

.landing__pricing-name {
	font-size: var(--size-2xl);
	font-weight: 500;
	color: var(--color-gray-900);
	margin: 0;
}

.landing__pricing-price {
	font-size: var(--size-6xl);
	font-weight: 700;
	color: var(--color-gray-900);
	margin: 0;
	line-height: 1;
	letter-spacing: 0;
}

.landing__pricing-price span {
	font-size: var(--size-lg);
	font-weight: 400;
	color: var(--color-gray-400);
	letter-spacing: 0;
}

.landing__pricing-savings {
	font-size: var(--size-med);
	color: var(--color-seiji-600);
	font-weight: 500;
	margin: 2px 0 0;
	line-height: 1;
}

.landing__pricing-divider {
	height: 1px;
	background: var(--color-gray-100);
	border: none;
	margin: 6px 0;
}

.landing__pricing-features {
	list-style: none;
	padding: 0;
	margin: 0;
	display: flex;
	flex-direction: column;
	gap: 14px;
	margin-bottom: var(--spacing-lg);
}

.landing__pricing-features li {
	font-size: var(--size-lg);
	color: var(--color-gray-600);
	padding-left: 26px;
	position: relative;
	line-height: 1.5;
}

.landing__pricing-features li::before {
	content: "\2713";
	position: absolute;
	left: 0;
	font-weight: 700;
	color: var(--color-gray-300);
}

.landing__pricing-card--featured .landing__pricing-features li::before {
	color: var(--color-seiji-500);
}

.landing__pricing-cta {
	margin-top: auto;
}

.landing__final {
	padding: 110px 50px;
	text-align: center;
	border-top: 1px solid var(--color-gray-100);
	background: var(--color-gray-50);
	position: relative;
	overflow: hidden;
}

.landing__final-kanji {
	position: absolute;
	bottom: -40px;
	right: 60px;
	font-size: 14rem;
	font-weight: 600;
	color: var(--color-gray-100);
	user-select: none;
	pointer-events: none;
	line-height: 1;
	z-index: 0;
}

.landing__final-layout {
	position: relative;
	z-index: 1;
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 48px;
	max-width: 800px;
	margin: 0 auto;
}

.landing__final-mascot {
	width: 320px;
	height: auto;
	flex-shrink: 0;
	filter: drop-shadow(0 8px 24px rgb(0 0 0 / 8%));
}

.landing__final-content {
	text-align: left;
}

.landing__final-headline {
	font-size: var(--size-5xl);
	font-weight: 600;
	color: var(--color-gray-900);
	margin: 0 0 var(--spacing-md);
	letter-spacing: 0;
}

.landing__final-text {
	font-size: var(--size-xl);
	color: var(--color-gray-400);
	margin: 0 0 var(--spacing-xl);
	line-height: 1.6;
}

@media (width <= 768px) {
	.landing {
		margin: -30px -20px;
	}

	.landing__hero {
		grid-template-columns: 1fr;
		padding: 60px 24px 40px;
		text-align: center;
	}

	.landing__hero-content {
		align-items: center;
	}

	.landing__hero-kanji {
		font-size: 10rem;
		left: 50%;
	}

	.landing__hero-headline {
		font-size: 2.6rem;
		max-width: none;
	}

	.landing__hero-subtitle {
		font-size: var(--size-xl);
		max-width: none;
	}

	.landing__hero-actions {
		flex-direction: column;
	}

	.landing__hero-visual {
		justify-content: center;
	}

	.landing__hero-image {
		max-height: 340px;
	}

	.landing .button--xl {
		padding: 18px 40px;
		font-size: var(--size-xl);
	}

	.landing__features,
	.landing__method,
	.landing__pricing,
	.landing__final {
		padding: 60px 24px;
	}

	.landing__features-grid {
		grid-template-columns: 1fr;
	}

	.landing__method-content {
		grid-template-columns: 1fr;
		gap: 40px;
	}

	.landing__method-visual {
		order: -1;
	}

	.landing__tree-card {
		width: 72px;
		padding: 10px 6px 8px;
	}

	.landing__tree-card--root {
		width: 84px;
	}

	.landing__tree-char {
		font-size: var(--size-3xl);
	}

	.landing__tree-card--root .landing__tree-char {
		font-size: var(--size-4xl);
	}

	.landing__pricing-grid,
	.landing__pricing-grid--three {
		grid-template-columns: 1fr;
		max-width: 360px;
	}

	.landing__final-layout {
		flex-direction: column;
		gap: 24px;
	}

	.landing__final-content {
		text-align: center;
	}

	.landing__final-mascot {
		width: 180px;
	}

	.landing__final-headline {
		font-size: var(--size-4xl);
	}

	.landing__final-text {
		font-size: var(--size-lg);
	}
}

@media (width <= 480px) {
	.landing__hero-kanji {
		font-size: 7rem;
	}

	.landing__hero-headline {
		font-size: 2rem;
	}

	.landing__hero-subtitle {
		font-size: var(--size-lg);
	}

	.landing__hero-image {
		max-height: 260px;
	}

	.landing .button--xl,
	.landing .button--lg {
		padding: 16px 32px;
		font-size: var(--size-xl);
		width: 100%;
	}

	.landing .button--ghost {
		width: auto;
	}

	.landing__features,
	.landing__method,
	.landing__pricing,
	.landing__final {
		padding: 48px 16px;
	}

	.landing__tree-example {
		padding: 32px 16px;
	}

	.landing__tree-card {
		width: 60px;
		padding: 8px 4px 6px;
	}

	.landing__tree-card--root {
		width: 72px;
		padding: 10px 6px 8px;
	}

	.landing__tree-char {
		font-size: var(--size-2xl);
	}

	.landing__tree-card--root .landing__tree-char {
		font-size: var(--size-3xl);
	}

	.landing__tree-reading {
		font-size: var(--size-sm);
	}

	.landing__tree-meaning {
		font-size: var(--size-xs);
	}

	.landing__step-marker {
		width: 32px;
		height: 32px;
		font-size: var(--size-sm);
	}

	.landing__step-body {
		padding-top: 3px;
	}

	.landing__step-label {
		font-size: var(--size-lg);
	}

	.landing__step-text {
		font-size: var(--size-med);
	}

	.landing__pricing-card {
		padding: 32px 24px;
	}

	.landing__final-headline {
		font-size: var(--size-3xl);
	}

	.landing__final-mascot {
		width: 140px;
	}

	.landing__final-kanji {
		font-size: 8rem;
	}
}