/* docs.css — Stage 4b (2026-05-24): Clinical Trust 시안 .doc-* 마스터 톤 정합.
   클래스명 유지. site/tokens.css의 :root alias를 통해 색·토큰 공유. */

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

body {
    font-family: 'Pretendard', 'Apple SD Gothic Neo', 'Noto Sans KR', sans-serif;
    background: var(--bg-color);
    color: var(--text-main);
    font-size: 16px;
    line-height: 1.7;
    letter-spacing: -0.005em;
    padding: 32px 16px 64px;
}

.doc-wrap {
    max-width: 720px;
    margin: 0 auto;
    background: var(--card-bg);
    border-radius: var(--r-lg);
    border: 1px solid var(--border);
    padding: 56px 32px 64px;
}

.doc-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text-muted);
    text-decoration: none;
    padding: 6px 10px 6px 6px;
    border-radius: var(--r-md);
    transition: background 0.12s ease, color 0.12s ease;
}
.doc-back:hover {
    color: var(--text-main);
    background: var(--bg-color);
    text-decoration: none;
}

/* Stage 5 부분 — 시안 .doc-eyebrow (페이지 카테고리 라벨) */
.doc-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 10.5px;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 14px;
}
.doc-eyebrow::before {
    content: "";
    width: 24px;
    height: 1.5px;
    background: var(--primary);
}

/* Stage 5 부분 — 시안 h2 안 .h-num 번호 태그 */
h2 .h-num {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--text-muted);
    vertical-align: middle;
    margin-right: 10px;
    padding: 2px 6px;
    background: var(--surface-subtle);
    border-radius: var(--r-sm);
}

/* Stage 5 부분 — 시안 .doc-lead (h1 다음 도입 문단) */
.doc-lead {
    font-size: 16px;
    font-weight: 500;
    color: var(--ink-2);
    line-height: 1.65;
    margin: 0 0 24px;
    max-width: 60ch;
    letter-spacing: -0.005em;
}

h1 {
    font-size: 40px;
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.1;
    color: var(--text-main);
    margin-bottom: 14px;
}

.doc-meta {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    padding: 14px 0 28px;
    margin-bottom: 28px;
    border-bottom: 1px solid var(--border);
    font-size: 11.5px;
    letter-spacing: 0.04em;
    color: var(--text-muted);
}

h2 {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: var(--text-main);
    margin-top: 40px;
    margin-bottom: 8px;
}

p {
    margin-bottom: 14px;
    font-size: 16px;
    line-height: 1.7;
    color: var(--ink-2);
}

ul {
    padding-left: 18px;
    margin: 4px 0 18px 4px;
    list-style: disc;
}
ul li {
    margin-bottom: 6px;
    font-size: 15px;
    line-height: 1.65;
    color: var(--ink-2);
    padding-left: 4px;
}
ul li::marker { color: var(--primary); }

.doc-note {
    background: var(--warning-light);
    border-left: 3px solid var(--warning);
    border-radius: var(--r-lg);
    padding: 18px 20px;
    font-size: 14px;
    line-height: 1.6;
    color: var(--ink-2);
    margin: 24px 0;
}

.doc-links {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    font-size: 13px;
    color: var(--text-muted);
}
.doc-links a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
    font-weight: 500;
    transition: text-decoration-thickness 0.12s ease;
}
.doc-links a:hover {
    text-decoration-thickness: 2px;
}
.doc-links .sep { margin: 0 6px; color: var(--border); }