/* 산출물 문서 페이지 공용 스타일 — index.html(메인)과 같은 디자인 토큰(oklch, 퍼플 계열, Pretendard)을 씁니다.
   2026-09-06: 문서 1건당 페이지 1개 구조로 전환하면서, 기존 about.html의 blueprint(diazo) 테마를
   버리고 메인 페이지와 동일한 카드형 디자인으로 새로 그렸습니다.
   생성 방식: scripts/build-about.mjs가 data/about-projects.json을 읽어 about.html(색인)과
   about/<project>-<doc>.html(문서 1건당 1페이지)을 만듭니다. 이 CSS는 그 페이지들이 공유합니다. */

@font-face {
  font-family: "Pretendard";
  src: url("/fonts/Pretendard-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Pretendard";
  src: url("/fonts/Pretendard-Medium.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Pretendard";
  src: url("/fonts/Pretendard-SemiBold.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Pretendard";
  src: url("/fonts/Pretendard-Bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

/* 메인(index.html)과 동일한 토큰 */
:root {
  --background: oklch(0.973 0.004 286);
  --foreground: oklch(0.2 0.02 280);
  --card: oklch(1 0 0);
  --card-border: oklch(0.91 0.006 286);
  --muted: oklch(0.96 0.006 286);
  --muted-foreground: oklch(0.5 0.02 280);
  --faint: oklch(0.62 0.014 280);
  --primary: oklch(0.55 0.23 290);
  --primary-foreground: oklch(0.99 0.005 286);
  --accent: oklch(0.94 0.03 290);
  --accent-foreground: oklch(0.35 0.15 290);
  --ring: oklch(0.55 0.23 290 / 45%);
  --chart-cyan: oklch(0.6 0.16 200);
  --chart-teal: oklch(0.56 0.13 185);
  --chart-amber: oklch(0.68 0.16 70);
  --live: oklch(0.6 0.14 155);
  --live-soft: oklch(0.6 0.14 155 / 12%);
  --beta: oklch(0.6 0.16 70);
  --beta-soft: oklch(0.6 0.16 70 / 14%);
  --shadow: oklch(0.2 0.02 280 / 8%);
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: oklch(0.16 0.012 280);
    --foreground: oklch(0.96 0.005 286);
    --card: oklch(0.2 0.014 280);
    --card-border: oklch(1 0 0 / 10%);
    --muted: oklch(0.24 0.014 280);
    --muted-foreground: oklch(0.72 0.015 286);
    --faint: oklch(0.55 0.02 286);
    --primary: oklch(0.7 0.19 290);
    --primary-foreground: oklch(0.16 0.012 280);
    --accent: oklch(0.3 0.06 290);
    --accent-foreground: oklch(0.9 0.04 290);
    --ring: oklch(0.7 0.19 290 / 45%);
    --chart-cyan: oklch(0.75 0.13 200);
    --chart-teal: oklch(0.72 0.12 185);
    --chart-amber: oklch(0.78 0.14 70);
    --live: oklch(0.72 0.15 155);
    --live-soft: oklch(0.72 0.15 155 / 16%);
    --beta: oklch(0.78 0.14 70);
    --beta-soft: oklch(0.78 0.14 70 / 16%);
    --shadow: oklch(0 0 0 / 35%);
  }
}

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

body {
  /* mermaid(내부 khroma 색상 라이브러리)가 document.body의 계산된 배경색을 직접 읽어 밝기를
     판단하는데, oklch()는 파싱하지 못해 "Unsupported color format" 런타임 에러로 죽습니다
     (2026-09-06 확인). 그래서 body의 배경만 예외적으로 var() 대신 같은 색의 근사 HEX를 직접
     써서 getComputedStyle이 rgb()로 돌려주게 합니다(다른 요소는 전부 oklch 토큰 그대로 사용,
     시각적 차이는 없음) — 다크모드 값은 아래 미디어 쿼리에서 다시 덮어씁니다.
  */
  background-color: #f7f6f9;
  color: var(--foreground);
  font-family: "Pretendard", ui-sans-serif, system-ui, -apple-system, sans-serif;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-color-scheme: dark) {
  body { background-color: #17151f; }
}

a { color: inherit; }
::selection { background: var(--accent); color: var(--accent-foreground); }

.container { max-width: 880px; margin: 0 auto; padding: 0 28px; }
.container--wide { max-width: 980px; }

/* ---------- Nav (메인과 동일) ---------- */
nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in oklch, var(--background) 82%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--card-border);
}
.nav-row { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand {
  display: flex; align-items: center; gap: 9px;
  text-decoration: none; font-weight: 600; font-size: 1.02rem; color: var(--foreground);
}
.brand svg { color: var(--primary); }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-link {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px; border-radius: 999px;
  font-size: 0.88rem; font-weight: 500; text-decoration: none;
  color: var(--muted-foreground);
  transition: background-color 0.15s ease, color 0.15s ease;
}
.nav-link:hover { background: var(--muted); color: var(--foreground); }
.nav-link.active { background: var(--accent); color: var(--accent-foreground); }

/* ---------- Hero (색인 페이지) ---------- */
.hero { position: relative; overflow: hidden; padding: 64px 0 40px; }
.hero-glow {
  position: absolute; inset: -20% -10% auto -10%; height: 380px;
  pointer-events: none; z-index: 0;
  background:
    radial-gradient(circle at 18% 25%, color-mix(in oklch, var(--primary) 20%, transparent), transparent 55%),
    radial-gradient(circle at 84% 10%, color-mix(in oklch, var(--chart-teal) 18%, transparent), transparent 50%);
  filter: blur(10px);
}
.hero-inner { position: relative; z-index: 1; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.76rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--primary); margin: 0 0 16px;
}
.eyebrow::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--primary); }
h1.headline {
  margin: 0; font-size: clamp(1.9rem, 4.6vw, 2.7rem); font-weight: 700;
  line-height: 1.2; letter-spacing: -0.01em; text-wrap: balance; max-width: 22ch;
}
.lede { margin: 16px 0 0; max-width: 58ch; font-size: 1.02rem; line-height: 1.65; color: var(--muted-foreground); }

.back-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.82rem; font-weight: 500; color: var(--muted-foreground);
  text-decoration: none; margin: 28px 0 0;
}
.back-link:hover { color: var(--primary); }

/* ---------- 프로젝트 그룹 + 문서 카드 (색인 페이지) ---------- */
.project-group { padding: 8px 0 44px; }
.project-group-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin: 0 0 4px; }
.project-group-head h2 { margin: 0; font-size: 1.22rem; font-weight: 600; }
.project-group-host {
  font-size: 0.78rem; color: var(--faint);
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
}
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 0.66rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase;
  padding: 3px 9px; border-radius: 999px; white-space: nowrap;
}
.badge--live { background: var(--live-soft); color: var(--live); }
.badge--live::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--live); box-shadow: 0 0 0 2.5px var(--live-soft); }
.badge--beta { background: var(--beta-soft); color: var(--beta); }
.badge--local { background: var(--muted); color: var(--faint); }

.doc-grid { margin-top: 16px; display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.doc-card {
  display: flex; align-items: baseline; gap: 12px;
  padding: 16px 18px; background: var(--card); border: 1px solid var(--card-border);
  border-radius: 14px; text-decoration: none; color: inherit;
  box-shadow: 0 1px 2px var(--shadow);
  transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}
.doc-card:hover { border-color: color-mix(in oklch, var(--primary) 40%, var(--card-border)); transform: translateY(-1px); box-shadow: 0 10px 22px -12px var(--shadow); }
.doc-card-index {
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-size: 0.78rem; color: var(--faint); flex-shrink: 0;
}
.doc-card-label { font-size: 0.94rem; font-weight: 600; }
.doc-card-eyebrow { display: block; margin-top: 3px; font-size: 0.76rem; color: var(--muted-foreground); }

/* ---------- 문서 페이지 헤더 ---------- */
.doc-header { padding: 40px 0 0; }
.doc-crumb {
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
  font-size: 0.8rem; color: var(--faint); margin: 0 0 14px;
}
.doc-crumb a { color: var(--muted-foreground); text-decoration: none; }
.doc-crumb a:hover { color: var(--primary); }
.doc-eyebrow { display: block; font-size: 0.76rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--primary); margin-bottom: 10px; }
.doc-title { margin: 0; font-size: clamp(1.5rem, 3.4vw, 2.05rem); font-weight: 700; line-height: 1.28; letter-spacing: -0.008em; text-wrap: balance; }

/* 같은 프로젝트의 다른 문서로 이동하는 탭 스트립 */
.doc-tabs { display: flex; flex-wrap: wrap; gap: 6px; margin: 22px 0 0; }
.doc-tab {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 14px; border-radius: 999px;
  font-size: 0.84rem; font-weight: 500; text-decoration: none;
  background: var(--muted); color: var(--muted-foreground);
  transition: background-color 0.15s ease, color 0.15s ease;
}
.doc-tab:hover { background: var(--accent); color: var(--accent-foreground); }
.doc-tab.active { background: var(--primary); color: var(--primary-foreground); font-weight: 600; }
.doc-tab-index { font-family: ui-monospace, "SFMono-Regular", Menlo, monospace; font-size: 0.74rem; opacity: 0.75; }

/* ---------- 문서 본문 카드 ---------- */
.doc-body {
  margin-top: 26px;
  background: var(--card); border: 1px solid var(--card-border); border-radius: 18px;
  padding: 36px 40px; box-shadow: 0 1px 2px var(--shadow);
}
.doc-body h3 {
  font-weight: 600; font-size: 1.05rem; color: var(--foreground);
  margin: 30px 0 10px; padding-top: 16px; border-top: 1px solid var(--card-border);
}
.doc-body h3:first-child { margin-top: 0; padding-top: 0; border-top: none; }
.doc-body p { margin: 0 0 12px; line-height: 1.72; color: var(--muted-foreground); font-size: 0.96rem; }
.doc-body ul, .doc-body ol { margin: 0 0 12px; padding-left: 1.35em; color: var(--muted-foreground); font-size: 0.96rem; line-height: 1.72; }
.doc-body li { margin-bottom: 5px; }
.doc-body li::marker { color: var(--primary); }
.doc-body strong { color: var(--foreground); font-weight: 600; }
.doc-body a { color: var(--primary); text-decoration: underline; text-decoration-color: color-mix(in oklch, var(--primary) 35%, transparent); text-underline-offset: 2px; }
.doc-body code {
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace; font-size: 0.85em;
  background: var(--accent); color: var(--accent-foreground); padding: 1px 6px; border-radius: 4px;
}

.doc-body pre.mermaid {
  margin: 20px 0; padding: 16px; background: var(--muted); border: 1px solid var(--card-border);
  border-radius: 12px; overflow-x: auto; text-align: center;
}
.doc-body pre.mermaid svg { max-width: 100%; height: auto; }

.doc-body table { width: 100%; border-collapse: collapse; margin: 12px 0 22px; font-size: 0.88rem; }
.doc-body th {
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-size: 0.68rem; letter-spacing: 0.07em; text-transform: uppercase;
  color: var(--primary); text-align: left; padding: 9px 14px;
  border-bottom: 1.5px solid var(--primary); white-space: nowrap;
}
.doc-body td { padding: 11px 14px; border-bottom: 1px solid var(--card-border); color: var(--muted-foreground); vertical-align: top; line-height: 1.6; }
.doc-body td:first-child { color: var(--foreground); font-weight: 500; }
.doc-body tr:last-child td { border-bottom: none; }

.doc-body pre.prompt {
  margin: 12px 0 22px; padding: 18px 20px;
  background: var(--muted); border: 1px solid var(--card-border); border-left: 3px solid var(--primary);
  border-radius: 10px; overflow-x: auto;
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace; font-size: 0.79rem; line-height: 1.68;
  color: var(--foreground); white-space: pre-wrap; word-break: break-word;
}
.prompt-label {
  display: inline-block; font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-size: 0.68rem; letter-spacing: 0.07em; text-transform: uppercase;
  color: var(--live); background: var(--live-soft); padding: 3px 9px; border-radius: 999px; margin: 6px 0 8px;
}
.prompt-label.template { color: var(--beta); background: var(--beta-soft); }

.doc-meta {
  display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 22px 0 0; padding-top: 18px;
  border-top: 1px dashed var(--card-border);
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace; font-size: 0.72rem; color: var(--faint);
}

/* 이전/다음 문서 페이저 */
.doc-pager { display: flex; justify-content: space-between; gap: 16px; margin-top: 18px; }
.pager-link {
  flex: 1; display: flex; flex-direction: column; gap: 4px;
  padding: 16px 18px; background: var(--card); border: 1px solid var(--card-border); border-radius: 14px;
  text-decoration: none; color: inherit;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.pager-link:hover { border-color: color-mix(in oklch, var(--primary) 40%, var(--card-border)); transform: translateY(-1px); }
.pager-link.next { text-align: right; align-items: flex-end; }
.pager-dir { font-size: 0.72rem; color: var(--faint); }
.pager-label { font-size: 0.92rem; font-weight: 600; }

footer.site-footer {
  padding: 40px 0 56px; display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px; font-size: 0.8rem; color: var(--faint);
}
footer.site-footer a { color: var(--faint); text-decoration: none; }
footer.site-footer a:hover { color: var(--primary); }

@media (max-width: 620px) {
  .container { padding: 0 18px; }
  .hero { padding: 44px 0 32px; }
  .doc-body { padding: 26px 22px; }
  .doc-pager { flex-direction: column; }
  .pager-link.next { text-align: left; align-items: flex-start; }
}

/* ---------- 좌측 사이드바 셸 (about 섹션 전용, 2026-09-06) ----------
   실제 가득율 관리 시스템 앱 자체가 "좌측 로고+사이드바" 구조라, 그 산출물 문서를 보여주는 이
   about 섹션도 같은 골격(로고가 있는 좌측 사이드바 안쪽에 본문이 놓이는 구조)으로 맞췄습니다.
   메인 홈(index.html)은 기존 상단 nav+히어로 구조를 그대로 유지합니다. */
.shell { display: grid; grid-template-columns: 264px 1fr; min-height: 100vh; align-items: start; }

.side {
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
  padding: 22px 16px 24px; border-right: 1px solid var(--card-border);
  display: flex; flex-direction: column; gap: 18px;
}
.side-logo {
  display: flex; align-items: center; gap: 9px;
  padding: 6px 8px 14px; margin-bottom: 4px; border-bottom: 1px solid var(--card-border);
  text-decoration: none; font-weight: 600; font-size: 1rem; color: var(--foreground);
}
.side-logo svg { color: var(--primary); flex-shrink: 0; }

/* 프로젝트명(1depth, 토글) + 문서 목록(2depth, 펼침) — 순정 <details>/<summary> 사용.
   생성 스크립트가 지금 보고 있는 프로젝트에는 "open" 속성을 미리 넣어주므로, 페이지가 뜨자마자
   정확한 펼침 상태로 나오고(깜빡임 없음) JS도 전혀 필요 없습니다. */
.side-group { display: flex; flex-direction: column; }
.side-summary {
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
  padding: 8px 8px 6px; font-size: 0.8rem; font-weight: 600; color: var(--foreground);
  border-radius: 8px; cursor: pointer; list-style: none;
  transition: background-color 0.15s ease;
}
.side-summary::-webkit-details-marker { display: none; }
.side-summary::before {
  content: ""; width: 7px; height: 7px; flex-shrink: 0;
  border-right: 1.5px solid var(--faint); border-bottom: 1.5px solid var(--faint);
  transform: rotate(-45deg); margin-right: 2px;
  transition: transform 0.15s ease;
}
.side-group[open] .side-summary::before { transform: rotate(45deg); }
.side-summary:hover { background: var(--muted); }
.side-group-host {
  display: block; padding: 0 8px 6px 23px;
  font-size: 0.68rem; color: var(--faint); font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
}
.side-link {
  display: flex; align-items: baseline; gap: 9px;
  padding: 7px 8px 7px 20px; border-radius: 8px;
  font-size: 0.86rem; color: var(--muted-foreground); text-decoration: none;
  transition: background-color 0.15s ease, color 0.15s ease;
}
.side-link:hover { background: var(--muted); color: var(--foreground); }
.side-link.active { background: var(--accent); color: var(--accent-foreground); font-weight: 600; }
.side-link .idx {
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace; font-size: 0.72rem; color: var(--faint); flex-shrink: 0;
}
.side-link.active .idx { color: var(--accent-foreground); opacity: 0.7; }

.side-back {
  margin-top: auto; display: inline-flex; align-items: center; gap: 6px;
  padding: 8px; font-size: 0.8rem; color: var(--faint); text-decoration: none;
}
.side-back:hover { color: var(--primary); }

.content { min-width: 0; padding: 40px 40px 56px; }
.content .container { padding: 0; max-width: 760px; margin: 0; }

@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; }
  .side {
    position: static; height: auto; overflow-y: visible;
    border-right: none; border-bottom: 1px solid var(--card-border);
    flex-direction: column;
  }
  .content { padding: 28px 20px 44px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}