/* 사이트 공통: 머리글, 바닥글, 안내 페이지 */
:root {
  --paper: #f2f3ef; --surface: #fbfbf8; --ink: #1c2230; --ink-2: #5a6070; --line: #d9dbd3;
  --accent: #2b3f78; --accent-ink: #ffffff;
  --f-display: "Noto Serif KR", "Nanum Myeongjo", "Batang", serif;
  --f-body: "IBM Plex Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --paper: #12151c; --surface: #1a1e28; --ink: #e8e7e1; --ink-2: #a3a7b2; --line: #2d3240; --accent: #8ea4e8; --accent-ink: #10131a; color-scheme: dark; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--f-body); font-size: 15px; line-height: 1.7; word-break: keep-all; overflow-wrap: break-word; }
a { color: var(--accent); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.wrap { max-width: 860px; margin: 0 auto; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }

.site-head { border-bottom: 1px solid var(--line); background: var(--surface); padding-top: env(safe-area-inset-top, 0px); }
.site-head .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 20px; padding-block: 12px; }
.brand { font-family: var(--f-display); font-weight: 900; font-size: 19px; color: var(--ink); text-decoration: none; letter-spacing: -0.01em; }
.brand span { color: var(--accent); }
.site-nav { display: flex; flex-wrap: wrap; gap: 4px 16px; font-size: 14px; }
.site-nav a { color: var(--ink-2); text-decoration: none; padding: 4px 0; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--accent); }

.site-foot { border-top: 1px solid var(--line); margin-top: 24px; padding-bottom: env(safe-area-inset-bottom, 0px); }
.site-foot .wrap { padding-block: 24px 32px; display: flex; flex-direction: column; gap: 8px; font-size: 13px; color: var(--ink-2); }
.site-foot nav { display: flex; flex-wrap: wrap; gap: 4px 16px; }
.site-foot a { color: var(--ink-2); }

.doc { padding-block: 32px 24px; max-width: 68ch; }
.doc .eyebrow { font-size: 12px; letter-spacing: 0.12em; color: var(--accent); font-weight: 600; }
.doc h1 { font-family: var(--f-display); font-weight: 900; font-size: clamp(26px, 5vw, 34px); line-height: 1.3; margin: 6px 0 16px; text-wrap: balance; }
.doc h2 { font-family: var(--f-display); font-size: 20px; margin: 36px 0 10px; text-wrap: balance; }
.doc h3 { font-size: 16px; margin: 22px 0 6px; }
.doc p, .doc li { margin: 0 0 12px; }
.doc ul, .doc ol { padding-left: 20px; margin: 0 0 12px; }
.doc .lead { font-size: 17px; color: var(--ink-2); }
.doc .note { font-size: 13px; color: var(--ink-2); }
.doc .box { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; margin: 16px 0; }
.doc .tbl { overflow-x: auto; margin: 12px 0 16px; }
.doc table { border-collapse: collapse; width: 100%; font-size: 14px; }
.doc th, .doc td { border-bottom: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
.doc th { font-weight: 600; color: var(--ink-2); white-space: nowrap; }
.doc .cta { display: inline-block; margin-top: 8px; background: var(--accent); color: var(--accent-ink); text-decoration: none; font-weight: 600; padding: 11px 18px; border-radius: 10px; }