:root {
	--ink-950: #070a12;
	--ink-900: #0b0f1a;
	--ink-700: #1e2638;
	--ink-600: #2c3550;
	--ink-500: #5a6480;
	--ink-400: #8892ab;
	--ink-300: #b7becf;
	--ink-200: #dde2ec;
	--ink-100: #f1f3f8;
	--ink-50: #f8fafc;
	--brand-600: #0064ff;
	--brand-50: #ebf2ff;
	--signal: #06d6a0;
}

* {
	box-sizing: border-box;
}
html {
	scroll-behavior: smooth;
}
body {
	margin: 0;
	color: var(--ink-900);
	background: #fff;
	font-family: Pretendard, "Apple SD Gothic Neo", "Noto Sans KR", system-ui, sans-serif;
	font-size: 16px;
	line-height: 1.75;
	word-break: keep-all;
	overflow-wrap: break-word;
}
a {
	color: inherit;
}
a:focus-visible {
	outline: 2px solid var(--brand-600);
	outline-offset: 3px;
	border-radius: 6px;
}
.site-header {
	position: sticky;
	top: 0;
	z-index: 2;
	background: rgba(255, 255, 255, 0.88);
	border-bottom: 1px solid rgba(221, 226, 236, 0.85);
	backdrop-filter: blur(16px);
}
.header-inner,
.footer-inner {
	max-width: 1120px;
	margin: 0 auto;
	padding: 18px 24px;
}
.header-inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 20px;
}
.brand {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	text-decoration: none;
	font-weight: 800;
	letter-spacing: -.03em;
}
.brand-mark {
	width: 28px;
	height: 28px;
	position: relative;
	display: inline-block;
}
.brand-mark::before,
.brand-mark::after {
	content: "";
	position: absolute;
	border-radius: 7px;
}
.brand-mark::before {
	width: 19px;
	height: 19px;
	left: 2px;
	top: 8px;
	background: var(--ink-300);
}
.brand-mark::after {
	width: 21px;
	height: 21px;
	right: 0;
	top: 1px;
	background: var(--ink-900);
}
.header-link {
	color: var(--ink-600);
	font-size: 14px;
	text-decoration: none;
}
.header-link:hover {
	color: var(--brand-600);
}
.page-wrap {
	max-width: 1120px;
	margin: 0 auto;
	padding: 78px 24px 110px;
}
.eyebrow {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	color: var(--brand-600);
	font-size: 13px;
	font-weight: 800;
	letter-spacing: .05em;
}
.eyebrow::before {
	content: "";
	width: 7px;
	height: 7px;
	border-radius: 50%;
	background: var(--signal);
}
h1,
h2,
h3 {
	color: var(--ink-900);
	letter-spacing: -.045em;
	line-height: 1.25;
}
h1 {
	max-width: 760px;
	margin: 14px 0 20px;
	font-size: clamp(38px, 5vw, 64px);
}
h2 {
	margin: 56px 0 18px;
	font-size: 28px;
}
h3 {
	margin: 34px 0 12px;
	font-size: 20px;
}
p {
	margin: 0 0 16px;
}
.lede {
	max-width: 700px;
	color: var(--ink-500);
	font-size: 19px;
	line-height: 1.7;
}
.meta {
	display: flex;
	flex-wrap: wrap;
	gap: 10px 20px;
	margin-top: 30px;
	color: var(--ink-500);
	font-size: 14px;
}
.meta strong {
	color: var(--ink-700);
}
.notice {
	margin-top: 34px;
	padding: 18px 20px;
	border: 1px solid #cfe0ff;
	border-radius: 16px;
	background: var(--brand-50);
	color: #254c9b;
}
.doc-grid {
	display: grid;
	grid-template-columns: 220px minmax(0, 1fr);
	gap: 64px;
	align-items: start;
}
.toc {
	position: sticky;
	top: 84px;
	padding: 18px 0;
	border-top: 2px solid var(--ink-900);
}
.toc-title {
	margin-bottom: 10px;
	color: var(--ink-400);
	font-size: 12px;
	font-weight: 800;
	letter-spacing: .08em;
	text-transform: uppercase;
}
.toc a {
	display: block;
	padding: 5px 0;
	color: var(--ink-500);
	font-size: 14px;
	text-decoration: none;
	line-height: 1.5;
}
.toc a:hover {
	color: var(--brand-600);
}
.article {
	min-width: 0;
}
.article section {
	padding-top: 2px;
	scroll-margin-top: 100px;
}
.article h2:first-child {
	margin-top: 0;
}
.article ul,
.article ol {
	margin: 10px 0 22px;
	padding-left: 22px;
}
.article li {
	margin: 6px 0;
}
.article a {
	color: var(--brand-600);
	text-decoration: underline;
	text-underline-offset: 3px;
}
.article strong {
	color: var(--ink-700);
}
.data-table {
	width: 100%;
	margin: 18px 0 26px;
	border-collapse: collapse;
	font-size: 15px;
}
.data-table th,
.data-table td {
	padding: 13px 14px;
	border-bottom: 1px solid var(--ink-200);
	text-align: left;
	vertical-align: top;
}
.data-table th {
	width: 28%;
	color: var(--ink-500);
	font-weight: 700;
	background: var(--ink-50);
}
.callout {
	margin: 24px 0;
	padding: 20px;
	border-left: 3px solid var(--brand-600);
	background: var(--ink-50);
	color: var(--ink-600);
}
.article-footer {
	margin-top: 60px;
	padding-top: 24px;
	border-top: 1px solid var(--ink-200);
	color: var(--ink-500);
	font-size: 14px;
}
.doc-cards {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 18px;
	max-width: 820px;
	margin-top: 44px;
}
.doc-card {
	display: block;
	padding: 26px;
	border: 1px solid var(--ink-200);
	border-radius: 20px;
	box-shadow: 0 14px 35px -24px rgba(11, 15, 26, 0.35);
	text-decoration: none;
	transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.doc-card:hover {
	border-color: #a8c8ff;
	box-shadow: 0 20px 45px -26px rgba(0, 100, 255, 0.28);
	transform: translateY(-2px);
}
.doc-card-label {
	color: var(--brand-600);
	font-size: 12px;
	font-weight: 800;
	letter-spacing: .06em;
}
.doc-card h2 {
	margin: 10px 0 6px;
	font-size: 22px;
}
.doc-card p {
	margin: 0;
	color: var(--ink-500);
	font-size: 15px;
}
.doc-card-arrow {
	display: inline-block;
	margin-top: 20px;
	color: var(--ink-400);
	font-size: 20px;
}
.footer {
	border-top: 1px solid var(--ink-100);
	color: var(--ink-500);
}
.footer-inner {
	display: flex;
	justify-content: space-between;
	gap: 20px;
	font-size: 14px;
}
.footer a {
	color: var(--ink-700);
	text-underline-offset: 3px;
}
@media (max-width: 780px) {
	.page-wrap {
		padding-top: 52px;
	}
	.doc-grid {
		display: block;
	}
	.toc {
		position: static;
		margin: 40px 0 44px;
		padding: 16px 0;
		border-bottom: 1px solid var(--ink-200);
	}
	.toc a {
		display: inline-block;
		margin-right: 16px;
	}
	h2 {
		margin-top: 42px;
		font-size: 25px;
	}
	.doc-cards {
		grid-template-columns: 1fr;
	}
}
@media (max-width: 480px) {
	.header-inner,
	.footer-inner,
	.page-wrap {
		padding-left: 18px;
		padding-right: 18px;
	}
	.header-inner {
		padding-top: 14px;
		padding-bottom: 14px;
	}
	.header-link {
		font-size: 13px;
	}
	.lede {
		font-size: 17px;
	}
	.meta {
		display: block;
	}
	.meta span {
		display: block;
		margin-top: 4px;
	}
	.data-table {
		font-size: 14px;
	}
	.data-table th,
	.data-table td {
		padding: 11px 9px;
	}
	.footer-inner {
		display: block;
	}
	.footer-inner a {
		display: inline-block;
		margin-top: 5px;
	}
}
@media (prefers-reduced-motion: reduce) {
	html {
		scroll-behavior: auto;
	}
	.doc-card {
		transition: none;
	}
}