/* www.grepboard.com — 원장(ledger)·매뉴얼 조판. 화이트 기본 · 다크 선택. 명령 블록은 두 테마 모두 터미널(어두움) */
:root, :root[data-theme="light"] {
  --bg: #f7f6f2; --paper: #ffffff; --ink: #1b1d21; --muted: #5f646d; --faint: #8a8f97;
  --line: #e4e1d9; --rule: #cdc8bb; --accent: #0a5fb8; --accent-2: #b4530a;
  --chip: #eef1f5; --mark: #fff3c4; --ad: #efede7;
  --term: #10151b; --term-line: #1f2832; --term-ink: #d6dee6; --term-dim: #8b98a6; --term-pr: #4fd1a1; --term-add: rgba(79, 209, 161, .13); --term-cap: #18202a;
}
:root[data-theme="dark"] {
  --bg: #0d1015; --paper: #12161d; --ink: #e2e7ed; --muted: #9aa4b0; --faint: #6f7a86;
  --line: #222a34; --rule: #2f3a47; --accent: #6cb2ff; --accent-2: #f0a35e;
  --chip: #1a212b; --mark: #3a3214; --ad: #171d26;
  --term: #090c10; --term-line: #1b232c; --term-cap: #121820;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.68 system-ui, -apple-system, "Segoe UI", "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", sans-serif; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
code, pre, time, .mono, .n, .sec, .stat, .grep, .crumbs, .meta, .ledger .d, .ledger .m, .steps .no, .step .no, .env, .badge, .tags, .pager { font-family: ui-monospace, "SFMono-Regular", "Cascadia Mono", Menlo, Consolas, "D2Coding", monospace; }
.wrap { max-width: 1400px; margin: 0 auto; padding: 0 16px; }
.vh { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* 머리 — 고정하지 않는다(모바일 하단 앵커 광고·읽기 공간) */
.top { background: var(--paper); border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; gap: 16px; min-height: 52px; flex-wrap: wrap; }
.brand { display: flex; align-items: baseline; gap: 0; color: var(--ink); font-weight: 750; font-size: 20px; letter-spacing: -.02em; }
.brand:hover { text-decoration: none; }
.brand .b1 { color: var(--accent); }
.brand .slash { color: var(--rule); margin: 0 8px; font-weight: 400; }
.brand .tg { font: 500 14px/1 ui-monospace, Menlo, Consolas, monospace; color: var(--muted); letter-spacing: 0; }
.nav { margin-left: auto; display: flex; align-items: center; gap: 14px; font-size: 14px; }
.nav > a { color: var(--ink); }
.langs { display: inline-flex; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; font: 12px/1 ui-monospace, Menlo, monospace; }
.langs > * { padding: 6px 8px; color: var(--muted); }
.langs [aria-current] { background: var(--chip); color: var(--ink); font-weight: 700; }
.theme { border: 1px solid var(--line); background: transparent; color: var(--ink); border-radius: 6px; width: 32px; height: 28px; cursor: pointer; font-size: 14px; }
:root[data-theme="light"] .theme .sun, :root[data-theme="dark"] .theme .moon { display: none; }
.grepbar { display: flex; align-items: center; gap: 16px; padding-top: 2px; padding-bottom: 10px; }
.grep { flex: 1; display: flex; align-items: center; gap: 10px; border: 1px solid var(--line); background: var(--bg); border-radius: 6px; padding: 0 12px; height: 38px; }
.grep:focus-within { border-color: var(--accent); }
.grep .pr { color: var(--accent-2); font-size: 14px; white-space: nowrap; }
.grep input { flex: 1; min-width: 0; border: 0; background: transparent; color: var(--ink); font: 14px ui-monospace, Menlo, Consolas, monospace; outline: none; }
.stat { color: var(--faint); font-size: 12.5px; white-space: nowrap; }
/* 섹션 메뉴 — 한 줄, 좁으면 옆으로 밀기 */
.sections { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; padding-bottom: 8px; font-size: 14px; }
.sections::-webkit-scrollbar { display: none; }
.sections a { flex: none; color: var(--muted); padding: 5px 10px; border-radius: 6px; white-space: nowrap; }
.sections a:hover { color: var(--ink); background: var(--chip); text-decoration: none; }
.sections a[aria-current] { color: var(--ink); background: var(--chip); font-weight: 650; box-shadow: inset 0 -2px var(--accent); }
.cat-desc { color: var(--muted); font-size: 15px; margin: -2px 0 16px; max-width: 760px; }

/* 세 단 — 왼쪽 카테고리 · 가운데 원장/글 · 오른쪽 레일(넓은 화면의 광고 자리) */
.layout { display: grid; grid-template-columns: 236px minmax(0, 1fr) 300px; gap: 32px; padding-top: 24px; padding-bottom: 48px; align-items: start; }
.sec { font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin: 0 0 10px; }
.n { color: var(--faint); font-size: 12px; font-weight: 400; letter-spacing: 0; }

.side { position: sticky; top: 16px; max-height: calc(100vh - 32px); overflow: auto; font-size: 14px; }
.catnav > summary { list-style: none; cursor: default; }
.catnav > summary::-webkit-details-marker { display: none; }
.tree, .tree ul { list-style: none; margin: 0; padding: 0; }
.tree .g { margin-bottom: 14px; }
.tree .gh a { font-weight: 700; color: var(--ink); }
.tree ul ul { padding-left: 12px; border-left: 1px solid var(--line); margin-left: 6px; }
.tree a { display: flex; justify-content: space-between; gap: 8px; padding: 3px 8px; border-radius: 4px; color: var(--ink); }
.tree a:hover { background: var(--chip); text-decoration: none; }
.tree a[aria-current] { background: var(--mark); font-weight: 650; }
.tree details > summary { list-style: none; }
.tree details > summary::-webkit-details-marker { display: none; }
.tree details > summary a { color: var(--muted); }

/* 원장 — 날짜가 바뀔 때만 날짜 · 점선 구분 */
.feed h1.sec { font-size: 13px; }
.ledger { list-style: none; margin: 0; padding: 0; border-top: 2px solid var(--ink); }
.ledger li { display: grid; grid-template-columns: 104px minmax(0, 1fr); gap: 16px; padding: 14px 0; border-bottom: 1px dotted var(--rule); }
.ledger .d { color: var(--muted); font-size: 13px; padding-top: 3px; }
.ledger .m { font-size: 12px; display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.ledger .cat { color: var(--accent-2); }
.ledger .ser { color: var(--faint); }
.ledger .ti { display: block; font-size: 18px; font-weight: 680; color: var(--ink); line-height: 1.4; margin: 2px 0 4px; letter-spacing: -.01em; }
.ledger .ti:hover { color: var(--accent); }
.ledger .su { margin: 0; color: var(--muted); font-size: 14.5px; line-height: 1.6; }
.env { display: inline-block; font-size: 11.5px; color: var(--muted); border: 1px solid var(--line); border-radius: 4px; padding: 0 6px; margin-top: 6px; }
.badge { font-size: 11px; color: var(--accent-2); border: 1px dashed var(--accent-2); border-radius: 4px; padding: 0 5px; }
.pager { display: flex; justify-content: space-between; align-items: center; margin-top: 18px; font-size: 13px; }
.pager .pn { color: var(--faint); }
.crumbs { font-size: 12.5px; color: var(--faint); margin-bottom: 10px; display: flex; gap: 6px; flex-wrap: wrap; }
.crumbs a { color: var(--accent-2); }

/* 글 — 본문 한 단 · 문단 간격 넉넉히(자동 광고가 끼어들 자리) */
.post { max-width: 780px; }
.post h1 { font-size: 30px; line-height: 1.3; letter-spacing: -.02em; margin: 0 0 10px; }
.post .meta { color: var(--muted); font-size: 12.5px; margin: 0 0 14px; display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.post .meta .env { margin: 0; }
.post .sep { color: var(--rule); }
.post .lede { font-size: 17px; color: var(--ink); border-left: 3px solid var(--accent); padding: 2px 0 2px 14px; margin: 0 0 26px; }
.body p { margin: 0 0 18px; }
.body h2 { font-size: 21px; margin: 34px 0 12px; }
.body h3 { font-size: 17px; margin: 26px 0 10px; }
.body code { font-size: .9em; background: var(--chip); border-radius: 4px; padding: 1px 5px; }
.step { margin-top: 30px !important; font-weight: 560; }
.step .no { color: var(--accent-2); font-weight: 700; margin-right: 4px; }
.step .no:hover { text-decoration: none; }
.tbl { overflow-x: auto; margin: 0 0 22px; }
.tbl table { border-collapse: collapse; width: 100%; font-size: 15px; background: var(--paper); }
.tbl th, .tbl td { border: 1px solid var(--line); padding: 7px 10px; text-align: left; vertical-align: top; min-width: 5.5em; }
.tbl th:first-child, .tbl td:first-child { min-width: 4.5em; word-break: keep-all; }
.tbl th { font-weight: 600; background: var(--bg); }
.note { background: var(--paper); border: 1px solid var(--line); border-left: 3px solid var(--accent-2); padding: 10px 14px; margin: 20px 0; font-size: 15px; color: var(--muted); border-radius: 0 6px 6px 0; }

/* 명령·파일 블록 — 두 테마 모두 터미널 */
.code { margin: 0 0 22px; border-radius: 8px; overflow: hidden; background: var(--term); border: 1px solid var(--term-line); }
.code figcaption { display: flex; justify-content: space-between; align-items: center; gap: 12px; background: var(--term-cap); border-bottom: 1px solid var(--term-line); padding: 6px 8px 6px 14px; font: 12px ui-monospace, Menlo, Consolas, monospace; color: var(--term-dim); }
.code .path { color: var(--term-ink); }
.code pre { margin: 0; padding: 14px 16px; overflow-x: auto; font-size: 14px; line-height: 1.6; color: var(--term-ink); }
.code pre code { background: none; padding: 0; font-size: inherit; }
.code .ln { display: block; min-height: 1.6em; white-space: pre; }
.code .pr { color: var(--term-pr); font-weight: 700; }
.code .cmd { color: #f2f6fa; }
.code .out { color: var(--term-dim); }
.code .cm { color: #7d8b99; font-style: italic; }
.code .add { background: var(--term-add); box-shadow: inset 3px 0 var(--term-pr); margin: 0 -16px; padding: 0 16px; }
.copy { border: 1px solid var(--term-line); background: transparent; color: var(--term-dim); border-radius: 5px; font: 12px ui-monospace, Menlo, monospace; padding: 3px 9px; cursor: pointer; }
.copy:hover, .copy.done { color: var(--term-pr); border-color: var(--term-pr); }

.sernav { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 30px 0 10px; }
.sernav a { border: 1px solid var(--line); background: var(--paper); border-radius: 8px; padding: 10px 14px; color: var(--ink); font-weight: 600; font-size: 15px; }
.sernav a span { display: block; font: 11px ui-monospace, Menlo, monospace; color: var(--faint); text-transform: uppercase; letter-spacing: .08em; }
.sernav .next { text-align: right; }
.tags { display: flex; gap: 10px; flex-wrap: wrap; font-size: 12.5px; color: var(--faint); }

/* 레일 */
.rail { position: sticky; top: 16px; display: flex; flex-direction: column; gap: 20px; }
.box { background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; }
.series-name { margin: 0 0 8px; font-weight: 650; }
.steps { list-style: none; margin: 0; padding: 0; font-size: 14px; }
.steps li { padding: 4px 0; border-bottom: 1px dotted var(--rule); }
.steps li:last-child { border-bottom: 0; }
.steps .no { color: var(--faint); font-size: 12px; }
.steps [aria-current] a { color: var(--ink); font-weight: 700; }
.plain { list-style: none; margin: 0; padding: 0; font-size: 14px; }
.plain li { padding: 3px 0; }
.tool-link { display: block; color: var(--ink); }
.tool-link:hover { text-decoration: none; }
.tool-name { display: block; font: 600 14px ui-monospace, Menlo, monospace; color: var(--accent); }
.tool-desc { display: block; font-size: 13.5px; color: var(--muted); margin-top: 2px; }

/* 글 끝 — 깔끔하게: 관련 매뉴얼 3편(제목만) + 해당될 때 Log 한 줄. 상자·색 장식 없음 */
.related { margin: 36px 0 0; padding-top: 14px; border-top: 1px solid var(--line); }
.related h2 { font-size: 14px; font-weight: 600; color: var(--muted); margin: 0 0 6px; }
.related ul { list-style: none; margin: 0; padding: 0; }
.related li { padding: 4px 0; }
.related li a { color: var(--ink); }
.related li a:hover { color: var(--accent); }
.logbox { margin: 12px 0 0; font-size: 14px; color: var(--muted); }
.logbox a { color: var(--accent); }
.logbox .lb-d { color: var(--muted); }
/* 광고 — 본문 밖 세 자리(오른쪽 위 · 오른쪽 따라오는 세로 · 글 끝). ID 가 없으면 그려지지 않는다 */
.ad { min-width: 0; }
.ad-label { display: block; font: 11px ui-monospace, Menlo, monospace; color: var(--faint); letter-spacing: .04em; margin-bottom: 4px; }
.ad.ad-end { margin: 34px 0 0; padding-top: 14px; border-top: 1px solid var(--line); }
/* 글 페이지의 오른쪽 칸은 본문 높이만큼 늘리고, 세로 광고만 따라 내려오게 한다(칸 전체를 붙이면 아래쪽이 화면 밖에 묻힌다) */
.rail:has(.ad-rail-tall) { position: static; align-self: stretch; }
.rail .ad-rail-tall { position: sticky; top: 16px; }
/* 광고 자리 시안(--preview-ads 에서만) */
.ad-slot { display: grid; place-items: center; background: var(--ad); border: 1px dashed var(--rule); border-radius: 6px; color: var(--faint); font: 11.5px ui-monospace, Menlo, monospace; letter-spacing: .04em; }
.ad-rail { min-height: 250px; }
.ad-rail-tall { min-height: 600px; }
.ad-inline { min-height: 140px; margin: 26px 0; }
.ad-end { min-height: 200px; margin: 30px 0 0; }

/* grep 결과 */
.results { margin-bottom: 28px; }
main:has(#results:not([hidden])) > :not(#results) { display: none; }
.results h2 { font-size: 13px; }
.results mark { background: var(--mark); color: inherit; border-radius: 2px; }

.foot { border-top: 1px solid var(--line); background: var(--paper); font-size: 13px; color: var(--faint); }
.foot .wrap { display: flex; gap: 18px; flex-wrap: wrap; padding-top: 18px; padding-bottom: 24px; }
.foot a { color: var(--muted); }
.foot span { margin-left: auto; }

/* 중간 폭 — 레일은 가운데 단 아래로 */
@media (max-width: 1199px) {
  .layout { grid-template-columns: 220px minmax(0, 1fr); }
  .rail { grid-column: 2; position: static; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
  .ad-rail-tall { min-height: 250px; }
  /* 레일이 본문 아래로 내려가면 글 끝 광고와 겹쳐 쌓이므로 세로형은 넓은 화면에서만 */
  .ad.ad-rail-tall, .ad-slot.ad-rail-tall { display: none; }
}
/* 좁은 폭 — 한 단. 카테고리는 접힌 목록(JS 가 닫는다) */
@media (max-width: 899px) {
  .layout { grid-template-columns: minmax(0, 1fr); gap: 20px; padding-top: 14px; }
  .side, .rail { grid-column: 1; position: static; max-height: none; }
  .catnav { border: 1px solid var(--line); background: var(--paper); border-radius: 8px; padding: 10px 14px; }
  .catnav > summary { cursor: pointer; margin: 0; }
  .catnav[open] > summary { margin-bottom: 10px; }
  .catnav > summary::after { content: " ▾"; }
  .rail { display: flex; }
  .stat { display: none; }
  .ledger li { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .ledger .d:empty { display: none; }
  .post h1 { font-size: 24px; }
  .sernav { grid-template-columns: minmax(0, 1fr); }
  .sernav > span:empty { display: none; }
  .nav { gap: 10px; }
  .brand .tg, .brand .slash { display: none; }
}