.flow {
	position: relative;
	scroll-margin-top: 96px;
	padding-block: clamp(88px, 12vw, 176px);
	overflow: clip;
	background: var(--color-cream);
}

.flow::before,
.flow::after {
	position: absolute;
	border-radius: 50%;
	content: "";
	pointer-events: none;
}

.flow::before {
	top: -150px;
	right: -100px;
	width: 340px;
	height: 340px;
	border: 1px solid rgb(var(--color-brand-700-rgb) / 0.11);
}

.flow::after {
	bottom: 14%;
	left: -90px;
	width: 190px;
	height: 190px;
	background: rgb(var(--color-white-rgb) / 0.34);
}

.flow__inner {
	position: relative;
	z-index: 1;
}

.flow__header {
	display: grid;
	gap: 40px;
}

.flow__label {
	display: grid;
	grid-template-columns: 38px auto;
	align-items: center;
	gap: 3px 12px;
	margin: 0;
	color: var(--color-brand-700);
}

.flow__label-line {
	grid-row: 1 / 3;
	width: 38px;
	height: 1px;
	background: var(--color-accent);
}

.flow__label-en {
	font-family: var(--font-latin);
	font-size: var(--font-size-label);
	font-weight: 700;
	line-height: 1.4;
	letter-spacing: 0.2em;
}

.flow__label-ja {
	color: var(--color-muted);
	font-size: var(--font-size-label);
	font-weight: 600;
	line-height: 1.4;
	letter-spacing: 0.08em;
}

.flow__title {
	margin: 0;
	color: var(--color-ink);
	font-family: var(--font-serif);
	font-size: clamp(2rem, 7.4vw, 3.65rem);
	font-weight: 600;
	line-height: 1.6;
	letter-spacing: 0.045em;
}

.flow__title span {
	color: var(--color-brand-700);
}

.flow__lead {
	max-width: 46rem;
	margin: 24px 0 0;
	font-size: var(--font-size-body);
	line-height: 2.15;
}

.flow__tracks {
	display: grid;
	gap: clamp(34px, 6vw, 64px);
	margin-top: clamp(62px, 10vw, 120px);
}

.flow-track {
	padding: clamp(28px, 6vw, 62px);
	border: 1px solid rgb(var(--color-brand-900-rgb) / 0.09);
	border-radius: var(--radius-medium);
	background: var(--color-white);
	box-shadow: 0 18px 56px rgb(var(--color-brand-900-rgb) / 0.065);
}

.flow-track--housing {
	background: var(--color-paper);
}

.flow-track__header {
	display: grid;
	gap: 24px;
	padding-bottom: 30px;
	border-bottom: 1px solid var(--color-walnut);
}

.flow-track__heading {
	display: flex;
	align-items: flex-start;
	gap: 20px;
}

.flow-track__service-number {
	flex: 0 0 auto;
	display: grid;
	place-items: center;
	width: 66px;
	height: 66px;
	border-radius: 50%;
	background: var(--color-brand-900);
	color: var(--color-white);
	font-family: var(--font-latin);
	font-size: var(--font-size-label);
	font-weight: 700;
	line-height: 1.35;
	letter-spacing: 0.1em;
	text-align: center;
}

.flow-track--housing .flow-track__service-number {
	background: var(--color-brand-700);
}

.flow-track__en {
	margin: 2px 0 3px;
	color: var(--color-brand-700);
	font-family: var(--font-latin);
	font-size: var(--font-size-label);
	font-weight: 700;
	line-height: 1.5;
	letter-spacing: 0.16em;
}

.flow-track__title {
	margin: 0;
	color: var(--color-ink);
	font-family: var(--font-serif);
	font-size: clamp(1.55rem, 5vw, 2.35rem);
	font-weight: 600;
	line-height: 1.5;
	letter-spacing: 0.06em;
}

.flow-track__notice,
.flow-track__summary {
	max-width: 54rem;
	margin: 0;
	font-size: var(--font-size-body);
	line-height: 1.95;
}

.flow-track__notice {
	display: flex;
	align-items: flex-start;
	gap: 10px;
	padding: 14px 16px;
	border-radius: var(--radius-small);
	background: var(--color-paper);
}

.flow-track__notice-icon {
	flex: 0 0 auto;
	margin-top: 2px;
	color: var(--color-brand-700);
}

.flow-track__notice-icon svg {
	width: 20px;
	height: 20px;
	fill: none;
	stroke: currentColor;
	stroke-linecap: round;
	stroke-linejoin: round;
	stroke-width: 1.7;
}

.flow-track__steps {
	position: relative;
	display: grid;
	gap: 28px;
	margin: 36px 0 0;
	padding: 0;
	list-style: none;
}

.flow-track__steps::before {
	position: absolute;
	top: 26px;
	bottom: 26px;
	left: 26px;
	width: 1px;
	background: var(--color-walnut);
	content: "";
}

.flow-step {
	position: relative;
	display: grid;
	grid-template-columns: 52px 42px minmax(0, 1fr);
	align-items: start;
	gap: 13px;
}

.flow-step__marker {
	position: relative;
	z-index: 1;
	display: grid;
	place-items: center;
	width: 52px;
	height: 52px;
	border: 1px solid var(--color-walnut);
	border-radius: 50%;
	background: var(--color-white);
	color: var(--color-brand-700);
	font-family: var(--font-latin);
	font-size: var(--font-size-label);
	font-weight: 700;
	letter-spacing: 0.08em;
}

.flow-track--housing .flow-step__marker {
	background: var(--color-ivory);
}

.flow-step__icon {
	display: grid;
	place-items: center;
	width: 42px;
	height: 42px;
	margin-top: 5px;
	border-radius: 50%;
	background: var(--color-paper);
	color: var(--color-brand-900);
}

.flow-track--housing .flow-step__icon {
	background: rgb(var(--color-white-rgb) / 0.66);
}

.flow-step__icon svg {
	width: 27px;
	height: 27px;
	fill: none;
	stroke: currentColor;
	stroke-linecap: round;
	stroke-linejoin: round;
	stroke-width: 1.6;
}

.flow-step__content {
	padding-top: 3px;
}

.flow-step__title {
	margin: 0;
	color: var(--color-ink);
	font-family: var(--font-serif);
	font-size: 1rem;
	font-weight: 600;
	line-height: 1.65;
	letter-spacing: 0.04em;
}

.flow-step__description {
	margin: 7px 0 0;
	font-size: var(--font-size-body);
	line-height: 1.9;
}

@media (min-width: 768px) {
	.flow__header {
		grid-template-columns: minmax(150px, 0.42fr) minmax(0, 1.58fr);
		gap: clamp(48px, 8vw, 120px);
	}

	.flow-track__header {
		grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.2fr);
		align-items: center;
		gap: clamp(28px, 5vw, 72px);
	}

	.flow-track__steps {
		grid-template-columns: repeat(4, minmax(0, 1fr));
		gap: clamp(18px, 2.5vw, 38px);
		margin-top: 46px;
	}

	.flow-track__steps::before {
		top: 26px;
		right: calc(12.5% - 26px);
		bottom: auto;
		left: calc(12.5% - 26px);
		width: auto;
		height: 1px;
	}

	.flow-step {
		grid-template-columns: 1fr;
		justify-items: center;
		gap: 13px;
		text-align: center;
	}

	.flow-step__icon {
		width: 48px;
		height: 48px;
		margin-top: 0;
	}

	.flow-step__content {
		padding-top: 2px;
	}
}

@media (min-width: 1100px) {
	.flow-track__header {
		grid-template-columns: minmax(340px, 0.72fr) minmax(0, 1.28fr);
	}

	.flow-step__title {
		font-size: 1.08rem;
	}

	.flow-step__description {
		font-size: var(--font-size-body);
	}
}