/* 하위 문서 페이지 공용 스타일 — 홈(styles.css)의 풀스크린 연출과 분리해서
   읽기 위한 레이아웃만 담는다. 색·서체 토큰은 홈과 같은 값을 쓴다. */

:root {
  --blue: #2ca3ff;
  --ink: #0b0b0e;
  --gray: #8a8f98;
  --line: #e6eaef;
  --serif: "Noto Serif KR", "Nanum Myeongjo", serif;
  --sans: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, sans-serif;
  --eng: "Montserrat", var(--sans);
  color-scheme: light;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  color: var(--ink);
  background: #fff;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}

/* 왼쪽 파란 세로선 — 홈 ② 씬의 카드 책등이 이어져 들어온 모양 */
.spine {
  position: fixed;
  inset: 0 auto 0 0;
  width: clamp(14px, 2.4vw, 34px);
  background: var(--blue);
  z-index: 5;
}

.doc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding: 22px clamp(24px, 6vw, 72px) 22px calc(clamp(14px, 2.4vw, 34px) + clamp(24px, 6vw, 72px));
  border-bottom: 1px solid var(--line);
}
.doc-header a.brand { display: inline-flex; }
.doc-header img { display: block; height: 30px; width: auto; }
.doc-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 20px;
  font-size: 14px;
}
.doc-nav a { color: var(--gray); text-decoration: none; }
.doc-nav a:hover { color: var(--blue); }

main {
  max-width: 820px;
  margin: 0 auto;
  padding: 56px clamp(24px, 6vw, 72px) 96px;
  padding-left: calc(clamp(14px, 2.4vw, 34px) + clamp(24px, 6vw, 72px));
}

.crumbs { font-size: 13px; color: var(--gray); margin-bottom: 28px; }
.crumbs a { color: var(--blue); text-decoration: none; }
.crumbs span { margin: 0 7px; }

.eyebrow {
  font-family: var(--eng);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 14px;
}

h1 {
  font-family: var(--serif);
  font-size: clamp(27px, 4vw, 42px);
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}

.lead {
  font-size: 17px;
  color: #444a52;
  margin-bottom: 52px;
  max-width: 62ch;
}

h2 {
  font-family: var(--serif);
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 600;
  line-height: 1.6;
  margin: 52px 0 16px;
  padding-left: 16px;
  border-left: 3px solid var(--blue);
}

h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 28px 0 8px;
}

p { margin-bottom: 14px; max-width: 64ch; }
p:last-child { margin-bottom: 0; }

ul, ol { margin: 0 0 18px 20px; max-width: 64ch; }
li { margin-bottom: 7px; }

dl.facts {
  display: grid;
  grid-template-columns: minmax(96px, max-content) 1fr;
  gap: 10px 22px;
  margin: 0 0 22px;
  max-width: 64ch;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}
dl.facts dt { font-weight: 600; color: var(--gray); font-size: 14px; }
dl.facts dd { margin: 0; }

.qa { border-top: 1px solid var(--line); padding: 22px 0 4px; }
.qa h3 { margin: 0 0 10px; font-family: var(--serif); font-size: 17px; font-weight: 600; }
.qa h3::before { content: "Q. "; color: var(--blue); font-family: var(--eng); }

a { color: var(--blue); }

.linkgrid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px 18px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  max-width: 64ch;
}
.linkgrid li { margin: 0; }
.linkgrid a { text-decoration: none; font-size: 15px; }
.linkgrid a:hover { text-decoration: underline; }

.doc-footer {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.66);
  padding: 44px clamp(24px, 6vw, 72px) 48px calc(clamp(14px, 2.4vw, 34px) + clamp(24px, 6vw, 72px));
  font-size: 13px;
  line-height: 2;
}
.doc-footer img { display: block; height: 34px; width: auto; margin-bottom: 20px; }
.doc-footer address { font-style: normal; }
.doc-footer a { color: rgba(255, 255, 255, 0.8); }
.doc-footer nav { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 6px 18px; }