:root {
	color-scheme: light;
	--ink: #17201b;
	--muted: #5b665f;
	--line: #d8ddd7;
	--paper: #faf9f4;
	--white: #ffffff;
	--mint: #d9efe4;
	--green: #176b4c;
	--blue: #244d7f;
	--amber: #f3c466;
	--rose: #d66b6b;
}

* {
	box-sizing: border-box;
}

body {
	margin: 0;
	background: var(--paper);
	color: var(--ink);
	font-family:
		Inter,
		ui-sans-serif,
		system-ui,
		-apple-system,
		BlinkMacSystemFont,
		"Segoe UI",
		sans-serif;
	line-height: 1.55;
}

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

.site-header {
	position: sticky;
	top: 0;
	z-index: 10;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 24px;
	padding: 18px clamp(20px, 5vw, 72px);
	background: rgba(250, 249, 244, 0.94);
	border-bottom: 1px solid var(--line);
	backdrop-filter: blur(12px);
}

.brand {
	font-weight: 800;
	font-size: 1.08rem;
}

nav {
	display: flex;
	flex-wrap: wrap;
	gap: 18px;
	color: var(--muted);
	font-size: 0.94rem;
}

.hero {
	display: grid;
	grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.72fr);
	align-items: center;
	gap: clamp(32px, 5vw, 72px);
	min-height: 78vh;
	padding: clamp(56px, 8vw, 104px) clamp(20px, 5vw, 72px) 40px;
	border-bottom: 1px solid var(--line);
}

.eyebrow {
	margin: 0 0 12px;
	color: var(--green);
	font-size: 0.78rem;
	font-weight: 800;
	letter-spacing: 0;
	text-transform: uppercase;
}

h1,
h2,
h3,
p {
	margin-top: 0;
}

h1 {
	max-width: 860px;
	margin-bottom: 22px;
	font-size: clamp(3rem, 9vw, 7.2rem);
	line-height: 0.92;
	letter-spacing: 0;
}

h2 {
	max-width: 780px;
	font-size: clamp(2rem, 4vw, 4rem);
	line-height: 1;
	letter-spacing: 0;
}

h3 {
	margin-bottom: 10px;
	font-size: 1.08rem;
	line-height: 1.25;
}

.lede {
	max-width: 740px;
	color: var(--muted);
	font-size: clamp(1.1rem, 2vw, 1.38rem);
}

.actions {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
	margin-top: 32px;
}

.button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 44px;
	padding: 0 18px;
	border: 1px solid var(--ink);
	border-radius: 6px;
	font-weight: 750;
}

.button.primary {
	background: var(--ink);
	color: var(--white);
}

.system-card {
	display: grid;
	gap: 12px;
	padding: 18px;
	border: 1px solid var(--line);
	border-radius: 8px;
	background: var(--white);
	box-shadow: 0 24px 80px rgba(23, 32, 27, 0.12);
}

.layer {
	padding: 18px;
	border-radius: 6px;
	background: #f4f2ea;
	border-left: 7px solid var(--amber);
	font-weight: 750;
}

.layer:nth-child(2) {
	border-left-color: var(--green);
}

.layer:nth-child(3) {
	border-left-color: var(--blue);
}

.layer:nth-child(4) {
	border-left-color: var(--rose);
}

.layer.strong {
	background: var(--ink);
	color: var(--white);
	border-left-color: var(--ink);
}

.band,
.grid-section,
.notice {
	padding: clamp(56px, 8vw, 96px) clamp(20px, 5vw, 72px);
	border-bottom: 1px solid var(--line);
}

.band {
	background: var(--white);
}

.section-heading {
	margin-bottom: 30px;
}

.split {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 28px;
	max-width: 1080px;
	color: var(--muted);
	font-size: 1.08rem;
}

.cards,
.use-cases {
	display: grid;
	grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: 16px;
}

.use-cases {
	grid-template-columns: repeat(3, minmax(0, 1fr));
}

article,
.use-cases div {
	min-height: 210px;
	padding: 22px;
	border: 1px solid var(--line);
	border-radius: 8px;
	background: var(--white);
}

article p,
.use-cases p,
.notice p {
	color: var(--muted);
}

.pill-list {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
	max-width: 960px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.pill-list li {
	padding: 9px 13px;
	border: 1px solid var(--line);
	border-radius: 999px;
	background: var(--mint);
	font-weight: 750;
}

.feature-showcase {
	background:
		linear-gradient(90deg, rgba(23, 107, 76, 0.08), transparent 42%),
		var(--white);
}

.feature-grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 16px;
}

.feature-card {
	position: relative;
	min-height: 320px;
	padding: 24px;
	overflow: hidden;
}

.feature-card.highlight {
	background: var(--ink);
	color: var(--white);
}

.feature-card.highlight p,
.feature-card.highlight li {
	color: rgba(255, 255, 255, 0.78);
}

.feature-number {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 38px;
	height: 38px;
	margin-bottom: 22px;
	border: 1px solid currentColor;
	border-radius: 50%;
	font-size: 0.82rem;
	font-weight: 800;
}

.feature-card ul {
	display: grid;
	gap: 8px;
	margin: 20px 0 0;
	padding: 0;
	list-style: none;
	color: var(--muted);
	font-size: 0.95rem;
}

.feature-card li {
	position: relative;
	padding-left: 18px;
}

.feature-card li::before {
	position: absolute;
	left: 0;
	content: "/";
	color: var(--green);
	font-weight: 800;
}

.workflow {
	display: grid;
	grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: 14px;
}

.workflow div {
	min-height: 190px;
	padding: 22px;
	border: 1px solid var(--line);
	border-radius: 8px;
	background: var(--white);
}

.workflow span {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 34px;
	height: 34px;
	margin-bottom: 28px;
	border-radius: 50%;
	background: var(--mint);
	color: var(--green);
	font-weight: 800;
}

.workflow p {
	color: var(--muted);
}

.notice {
	max-width: 920px;
}

@media (max-width: 920px) {
	.site-header,
	.hero {
		align-items: flex-start;
	}

	.site-header,
	nav,
	.actions {
		flex-direction: column;
	}

	.hero,
	.split,
	.cards,
	.use-cases,
	.feature-grid,
	.workflow {
		grid-template-columns: 1fr;
	}

	.system-card {
		width: 100%;
	}
}