:root {
	--color-accent-blue: #007aff;
	--color-accent-red: #db1111;
	--color-accent-green: #3a9d3e;
	--color-accent-yellow: #ffd30a;
	--color-accent-orange: #ff9f21;
	--color-accent-purple: #b90bff;
	--color-accent-cyan: #13ffd6;
	--color-accent-indigo: #ffd30a;

	--color-background-primary: #0a0a0a;
	--color-background-secondary: #1f1f1f;
	--color-surface: #141414;
	--color-surface-strong: #1f1f1f;
	--color-border: rgba(255, 255, 255, 0.08);
	--color-border-strong: rgba(255, 255, 255, 0.16);
	--color-shadow: rgba(0, 0, 0, 0.35);

	--color-text-primary: #f5f5f7;
	--color-text-secondary: #86868b;
	--color-text-disabled: #52535a;

	/* contents font sizes */
	--text-title: 36px;
	--text-subtitle: 30px;
	--text-header: 24px;
	--text-subheader: 20px;
	--text-body: 17px;
	--text-caption: 15px;

	/* ui font sizes */
	--text-ui: 20px;
	--radius-lg: 28px;
	--radius-md: 18px;
	--radius-sm: 12px;
	--page-max: 1200px;
	--section-gap: clamp(40px, 7vw, 96px);
}

* {
	box-sizing: border-box;
}
html {
	width: 100%;
	background-color: var(--color-background-primary);
}
body {
	max-width: 1440px;
	width: 100%;
	height: 100%;
	font-family: 'Pretendard';
	color: var(--color-text-primary);
	display: flex;
	flex-direction: column;
	padding: 16px;
	margin: 0 auto;
}
p {
	font-size: var(--text-body);
	font-weight: 400;
	color: var(--color-text-primary);
	padding: 0;
	margin: 0;
}
a {
	text-decoration: none;
	text-transform: none;
	display: block;
	text-decoration: none;
	color: inherit;
}
img {
	width: 100%;
	height: 100%;
	max-width: 100%;
	object-fit: cover;
	display: block;
	margin: 0 auto;
}

body {
	line-height: 1.6;
	background-color: var(--color-background-primary);
}

h1,
h2,
h3 {
	margin: 0;
	font-weight: 600;
	letter-spacing: -0.02em;
}

h1 {
	font-size: clamp(34px, 5vw, 56px);
	line-height: 1.1;
}

h2 {
	font-size: clamp(24px, 3.5vw, 34px);
}

h3 {
	font-size: 20px;
}

main {
	width: 100%;
}

.page {
	width: min(100%, var(--page-max));
	margin: 0 auto;
	display: flex;
	flex-direction: column;
	gap: var(--section-gap);
	padding: 24px 0 80px;
}

.topbar {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 20px;
	padding-bottom: 20px;
	border-bottom: 1px solid var(--color-border);
}

.brand {
	display: flex;
	align-items: center;
	gap: 12px;
	font-size: var(--text-ui);
	font-weight: 600;
}

.brand__mark {
	width: 36px;
	height: 36px;
	border-radius: 12px;
	background: linear-gradient(135deg, var(--color-accent-blue), var(--color-accent-cyan));
	color: var(--color-background-primary);
	display: inline-flex;
	align-items: center;
	justify-content: center;
	font-weight: 700;
}

.brand__text {
	display: flex;
	flex-direction: column;
	gap: 2px;
}

.brand__meta {
	font-size: 11px;
	letter-spacing: 0.24em;
	text-transform: uppercase;
	color: var(--color-text-secondary);
}

.nav {
	display: flex;
	gap: 18px;
	align-items: center;
	color: var(--color-text-secondary);
	font-size: var(--text-caption);
}

.nav a {
	color: inherit;
	display: inline-flex;
}

.nav a:hover {
	color: var(--color-text-primary);
}

.hero {
	padding: clamp(28px, 6vw, 64px);
	border-radius: var(--radius-lg);
	background:
		radial-gradient(420px 200px at 15% 10%, rgba(0, 122, 255, 0.18), transparent 60%),
		radial-gradient(400px 240px at 90% 0%, rgba(19, 255, 214, 0.15), transparent 60%),
		var(--color-background-secondary);
	border: 1px solid var(--color-border);
	display: grid;
	gap: 20px;
}

.badge {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 6px 14px;
	border-radius: 999px;
	border: 1px solid var(--color-border);
	color: var(--color-text-secondary);
	font-size: 12px;
	letter-spacing: 0.2em;
	text-transform: uppercase;
	background: rgba(255, 255, 255, 0.04);
	width: fit-content;
}

.hero__title {
	margin: 0;
	font-size: clamp(36px, 5vw, 56px);
	line-height: 1.12;
}

.hero__lead {
	margin: 0;
	color: var(--color-text-secondary);
	max-width: 60ch;
	font-size: var(--text-body);
}

.hero__actions {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
}

.lead-form {
	display: grid;
	gap: 16px;
	padding: 18px;
	border-radius: var(--radius-md);
	border: 1px solid var(--color-border);
	background: var(--color-surface);
}

.lead-form__grid {
	display: grid;
	gap: 12px;
	grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.lead-form__field {
	display: grid;
	gap: 6px;
	font-size: var(--text-caption);
	color: var(--color-text-secondary);
}

.lead-form__field input {
	padding: 12px 14px;
	border-radius: 12px;
	border: 1px solid var(--color-border-strong);
	background: var(--color-background-secondary);
	color: var(--color-text-primary);
}

.lead-form__field input::placeholder {
	color: var(--color-text-disabled);
}

.lead-form__field input:focus {
	outline: none;
	border-color: var(--color-accent-blue);
	box-shadow: 0 0 0 1px var(--color-accent-blue);
}

.lead-form__submit {
	justify-self: start;
}

.button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	padding: 12px 20px;
	border-radius: 999px;
	background: var(--color-accent-blue);
	color: #ffffff;
	border: 1px solid transparent;
	font-size: var(--text-caption);
	font-weight: 600;
	transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease;
	box-shadow: 0 10px 20px var(--color-shadow);
}

.button:hover {
	transform: translateY(-1px);
	background: #1c86ff;
}

.button--ghost {
	background: transparent;
	color: var(--color-text-primary);
	border-color: var(--color-border-strong);
	box-shadow: none;
}

.button--ghost:hover {
	background: rgba(255, 255, 255, 0.06);
}

.button--outline {
	background: transparent;
	color: var(--color-accent-blue);
	border-color: var(--color-accent-blue);
	box-shadow: none;
}

.stats {
	display: grid;
	gap: 14px;
	grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
}

.stat {
	padding: 16px 18px;
	border-radius: var(--radius-sm);
	border: 1px solid var(--color-border);
	background: var(--color-surface);
}

.stat__value {
	margin: 0;
	font-size: clamp(22px, 4vw, 30px);
	font-weight: 600;
}

.stat__label {
	margin: 4px 0 0;
	color: var(--color-text-secondary);
	font-size: var(--text-caption);
}

.section {
	display: flex;
	flex-direction: column;
	gap: 24px;
}

.section__header {
	display: flex;
	flex-direction: column;
	gap: 8px;
}

.section__kicker {
	margin: 0;
	color: var(--color-accent-cyan);
	text-transform: uppercase;
	letter-spacing: 0.22em;
	font-size: 12px;
}

.section__title {
	margin: 0;
	font-size: clamp(24px, 3.5vw, 34px);
}

.section__lead {
	margin: 0;
	color: var(--color-text-secondary);
	max-width: 60ch;
}

.card-grid {
	display: grid;
	gap: 20px;
	grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
	padding: 22px;
	border-radius: var(--radius-md);
	border: 1px solid var(--color-border);
	background: var(--color-surface);
	display: flex;
	flex-direction: column;
	gap: 12px;
}

.card__title {
	margin: 0;
	font-size: 20px;
}

.card__meta {
	margin: 0;
	color: var(--color-text-secondary);
}

.card__list {
	margin: 0;
	padding-left: 18px;
	color: var(--color-text-secondary);
}

.card__list li {
	margin: 6px 0;
}

.tag {
	align-self: flex-start;
	padding: 4px 10px;
	border-radius: 999px;
	border: 1px solid var(--color-border);
	background: rgba(255, 255, 255, 0.05);
	color: var(--color-text-secondary);
	font-size: 11px;
	letter-spacing: 0.16em;
	text-transform: uppercase;
}

.split {
	display: grid;
	gap: 24px;
	grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
}

.panel {
	padding: 24px;
	border-radius: var(--radius-md);
	border: 1px solid var(--color-border);
	background: var(--color-surface);
	display: flex;
	flex-direction: column;
	gap: 12px;
}

.panel--accent {
	background:
		linear-gradient(135deg, rgba(0, 122, 255, 0.14), rgba(19, 255, 214, 0.08)),
		var(--color-surface);
	border-color: var(--color-border-strong);
}

.panel__title {
	margin: 0;
	font-size: 22px;
}

.panel__text {
	margin: 0;
	color: var(--color-text-secondary);
}

.list {
	margin: 0;
	padding-left: 18px;
	color: var(--color-text-secondary);
}

.list li {
	margin: 8px 0;
}

.steps {
	display: grid;
	gap: 16px;
	grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
	counter-reset: step;
}

.step {
	position: relative;
	padding: 20px;
	border-radius: var(--radius-sm);
	border: 1px solid var(--color-border);
	background: var(--color-surface);
	counter-increment: step;
}

.step::before {
	content: counter(step, decimal-leading-zero);
	position: absolute;
	top: 16px;
	right: 16px;
	font-size: 11px;
	letter-spacing: 0.2em;
	color: var(--color-text-secondary);
}

.step__title {
	margin: 0 0 8px;
	font-size: 18px;
}

.step__text {
	margin: 0;
	color: var(--color-text-secondary);
}

.quote-grid {
	display: grid;
	gap: 20px;
	grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.quote {
	margin: 0;
	padding: 22px;
	border-radius: var(--radius-md);
	border: 1px solid var(--color-border);
	background: var(--color-surface);
}

.quote__text {
	margin: 0;
}

.quote__meta {
	display: block;
	margin-top: 14px;
	color: var(--color-text-secondary);
	font-size: var(--text-caption);
}

.cta {
	padding: clamp(28px, 6vw, 52px);
	border-radius: var(--radius-lg);
	border: 1px solid var(--color-border-strong);
	background:
		linear-gradient(130deg, rgba(0, 122, 255, 0.18), rgba(19, 255, 214, 0.12)),
		var(--color-background-secondary);
	display: grid;
	gap: 16px;
}

.cta__title {
	margin: 0;
	font-size: clamp(26px, 4vw, 36px);
}

.cta__lead {
	margin: 0;
	color: var(--color-text-secondary);
	max-width: 60ch;
}

.cta__actions {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
}

.cta__meta {
	display: flex;
	flex-wrap: wrap;
	gap: 12px 24px;
	color: var(--color-text-secondary);
	font-size: var(--text-caption);
}

.footer {
	padding-top: 32px;
	border-top: 1px solid var(--color-border);
	display: flex;
	flex-wrap: wrap;
	gap: 12px 24px;
	color: var(--color-text-secondary);
	font-size: var(--text-caption);
}

.footer a {
	color: inherit;
}

@media (max-width: 900px) {
	.topbar {
		flex-direction: column;
		align-items: flex-start;
	}

	.nav {
		flex-wrap: wrap;
	}
}

@media (max-width: 720px) {
	.page {
		padding: 16px 0 64px;
		gap: 48px;
	}

	.hero {
		padding: 28px;
	}

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