/* 공부 노트 — 방향 C 「블록 포스터」. 색·글꼴은 맨 위 토큰만 바꾸면 돼요. 글꼴은 assets/fonts/fonts.css (자체 호스팅, OFL 1.1).
   규칙: 흰 페이지 + 검은 블록(글 머리·푸터) + 라임 형광펜은 소수(현재 위치·핵심 구절·호버·결정 표지).
   구획은 1px 선. 카드·알약·그림자·둥근 모서리 없음. 다크 모드는 지원하지 않아요(흰 배경 고정). */
:root {
  --paper: #FFFFFF; --ink: #111111; --text: #1A1A1A; --meta: #505050; --soft: #E3E3E3; --code-bg: #F1F1F1;
  --blk: #111111; --on-blk: #FFFFFF; --on-blk-2: #D4D4D4; --on-blk-3: #BDBDBD; --blk-line: rgba(255, 255, 255, .14);
  --hi: #C6F432; --on-hi: #111111;
  --sans: "Pretendard Variable", Pretendard, "Apple SD Gothic Neo", "Noto Sans KR", system-ui, sans-serif;
  --disp: "Inter Tight Variable", "Pretendard Variable", Pretendard, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, "Pretendard Variable", monospace;
  --gx: 40px;          /* 페이지 좌우 여백(= 검은 블록의 안쪽 글자 위치와 같은 선) */
  --bm: 12px;          /* 검은 블록의 바깥 여백 */
  --measure: 680px;
  color-scheme: light;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; background: var(--paper); color: var(--text); font-family: var(--sans); font-size: 17.5px; line-height: 1.85; word-break: keep-all; overflow-wrap: break-word; -webkit-font-smoothing: antialiased; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }
a { color: var(--ink); text-decoration: none; }
:focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; }
.blk :focus-visible, .code :focus-visible { outline-color: var(--hi); }
.skip { position: absolute; left: 12px; top: -80px; background: var(--ink); color: var(--on-blk); padding: 12px 16px; z-index: 100; font: 500 13px/1.4 var(--mono); }
.skip:focus { top: 12px; outline-color: var(--hi); }
mark, em { font-style: normal; background: var(--hi); color: var(--on-hi); }

/* 라벨 체계: 번호 · 날짜 · 읽는 시간 · 분류는 전부 이 한 규칙(11px 모노, 영문·숫자만 대문자 + 넓은 자간) */
.lb { font: 500 11px/1.5 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.lb:lang(ko), .lb .ko { letter-spacing: .02em; }

/* 읽기 진행 바 */
.progress { position: fixed; inset: 0 0 auto 0; height: 4px; z-index: 60; pointer-events: none; }
.progress i { display: block; height: 100%; width: 100%; background: var(--ink); transform: scaleX(0); transform-origin: 0 50%; }

/* 헤더: 워드마크 + 모노 내비. 1px 선 하나. */
.site-head { position: sticky; top: 0; z-index: 50; background: var(--paper); border-bottom: 1px solid var(--ink); }
.site-head .in { margin: 0 auto; padding: 0 var(--gx); height: 56px; display: flex; align-items: center; justify-content: space-between; gap: 16px; max-width: 1440px; }
.brand { display: inline-flex; align-items: center; min-height: 44px; color: var(--ink); font: 800 20px/1 var(--sans); letter-spacing: -.045em; }
.site-nav { display: flex; gap: 0; margin-right: -12px; }
.site-nav a { font: 500 12px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink); padding: 0 12px; min-height: 44px; display: inline-flex; align-items: center; }
.site-nav a:hover { background: var(--hi); }
.site-nav a[aria-current="page"] { background: var(--hi); }

/* 검은 블록(목록 히어로 · 글 머리 · 소개 · 푸터) */
.blk { position: relative; background: var(--blk); color: var(--on-blk); margin: var(--bm) var(--bm) 0; padding: 28px var(--gx-in, 28px); overflow: hidden; isolation: isolate; }
.blk::before { content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none; background: repeating-linear-gradient(to right, var(--blk-line) 0 1px, transparent 1px calc(100% / 12)); }
.blk .lb { color: var(--on-blk-3); }
.blk-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 28px; }
.blk-foot { display: flex; flex-wrap: wrap; justify-content: flex-start; gap: 6px 0; }
.blk-foot > * + * { margin-left: 20px; padding-left: 20px; border-left: 1px solid var(--blk-line); }
.blk h1 { margin: 0; font-weight: 800; letter-spacing: -.04em; line-height: 1.08; text-wrap: balance; color: var(--on-blk); }
.blk h1 mark { padding: 0 .06em; margin: 0 -.06em; white-space: nowrap; }
.blk .lead { margin: 0; color: var(--on-blk-2); letter-spacing: -.01em; text-wrap: pretty; }
.blk a { color: var(--on-blk); }
.big-no { position: absolute; z-index: -1; right: 12px; top: -.16em; font: 700 clamp(160px, 26vw, 400px)/1 var(--disp); letter-spacing: -.06em; color: transparent; -webkit-text-stroke: 1px rgba(255, 255, 255, .3); pointer-events: none; user-select: none; }

/* 글 머리 */
.post-head { min-height: 520px; display: flex; flex-direction: column; justify-content: space-between; gap: 48px; }
.post-head h1 { font-size: clamp(30px, 5.2vw, 74px); max-width: 14.5em; margin: 56px 0 0; }
.post-head .lead { font-size: clamp(17px, 1.7vw, 21px); line-height: 1.75; max-width: 34em; margin-top: 28px; }
.post-head .blk-foot { font-size: 11px; }

/* 본문 격자: 왼쪽 레일(목차) | 본문 | 오른쪽은 비워 둠 */
.post-grid { max-width: 1440px; margin: 0 auto; padding: 0 var(--gx); display: grid; grid-template-columns: 190px minmax(0, var(--measure)); column-gap: 56px; justify-content: start; }
.prose { min-width: 0; padding: 56px 0 24px; }
.prose > :first-child { margin-top: 0; }
.prose > .toc-m + h2 { margin-top: 0; }
.prose p { margin: 0 0 1.3em; letter-spacing: -.003em; text-wrap: pretty; }
.prose strong { font-weight: 700; color: var(--ink); }
.prose { counter-reset: sec; }
.prose h2 { position: relative; counter-increment: sec; font-size: 34px; line-height: 1.3; font-weight: 800; letter-spacing: -.035em; margin: 2.1em 0 .7em; color: var(--ink); text-wrap: balance; }
.prose h2::before { content: counter(sec, decimal-leading-zero); display: block; margin-bottom: 14px; padding-top: 14px; border-top: 1px solid var(--ink); font: 500 11px/1 var(--mono); letter-spacing: .08em; color: var(--meta); }
.prose h3 { font-size: 20px; line-height: 1.5; font-weight: 700; letter-spacing: -.02em; margin: 1.8em 0 .5em; color: var(--ink); }
.prose h2 .anchor { position: absolute; left: -48px; bottom: -4px; width: 44px; height: 44px; display: inline-flex; align-items: center; justify-content: center; color: var(--meta); font: 500 18px/1 var(--mono); opacity: 0; transition: opacity .15s; }
.prose h2:hover .anchor, .prose h2 .anchor:focus-visible { opacity: 1; }
.prose a { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; transition: background-color .15s; }
.prose a:hover { background: var(--hi); text-decoration-color: transparent; }
.prose ul, .prose ol { margin: 1.6em 0; padding: 0; list-style: none; border-top: 1px solid var(--ink); counter-reset: li; }
.prose li { position: relative; margin: 0; padding: 13px 0 13px 40px; border-bottom: 1px solid var(--soft); font-size: 17px; line-height: 1.75; counter-increment: li; }
.prose ul li::before { content: ""; position: absolute; left: 4px; top: 1.3em; width: 7px; height: 7px; background: var(--ink); }
.prose ol li::before { content: counter(li, decimal-leading-zero); position: absolute; left: 0; top: 1.05em; font: 500 11px/1.9 var(--mono); letter-spacing: .08em; color: var(--meta); }
.prose :not(pre) > code { font-family: var(--mono); font-size: .86em; background: var(--code-bg); padding: .1em .4em; letter-spacing: 0; word-break: break-all; }
.prose blockquote { margin: 1.8em 0; padding: 2px 0 2px 22px; border-left: 3px solid var(--ink); }
.prose blockquote p { margin: 0 0 .6em; font-size: 17px; line-height: 1.75; color: var(--meta); }
.prose blockquote p:last-child { margin: 0; }
.prose hr { border: 0; height: 1px; background: var(--ink); margin: 3em 0; }

/* 코드 블록: 검은 면 하나, 라벨 줄 하나 */
.code { margin: 1.8em 0; background: var(--blk); color: #F2F2F2; position: relative; }
.code-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 0 0 0 18px; min-height: 44px; border-bottom: 1px solid var(--blk-line); font: 500 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--on-blk-3); }
.code-head .copy { font: 500 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--on-blk); background: transparent; border: 0; border-left: 1px solid var(--blk-line); padding: 0 18px; min-height: 44px; min-width: 44px; cursor: pointer; transition: background-color .15s, color .15s; }
.code-head .copy:hover { background: var(--hi); color: var(--on-hi); }
.code pre { margin: 0; padding: 18px 20px 20px; overflow-x: auto; font: 400 14px/1.7 var(--mono); word-break: normal; tab-size: 2; }
.code pre code { background: none; padding: 0; font: inherit; }
.code ::selection { background: var(--hi); color: var(--on-hi); }

/* 표: 머리 칸만 검은 면 + 모노 라벨, 몸통은 1px 선 */
.table-wrap { margin: 1.8em 0; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table-wrap:focus-visible { outline-offset: 2px; }
table { width: 100%; min-width: 560px; border-collapse: collapse; font-size: 15.5px; line-height: 1.65; }
th, td { text-align: left; padding: 14px 14px 14px 0; vertical-align: top; border-bottom: 1px solid var(--soft); }
th { background: var(--blk); color: var(--on-blk); font: 500 11px/1.3 var(--mono); letter-spacing: .02em; text-transform: uppercase; padding: 12px 14px; white-space: nowrap; border-bottom: 0; }
td { padding-left: 14px; }
td:first-child { font-weight: 700; white-space: nowrap; color: var(--ink); }
tbody tr:last-child td { border-bottom: 1px solid var(--ink); }
.table-wrap td code { font-size: .85em; }

/* 결정 기록: 1px 검은 틀 + 라임 표지 하나 */
.decision { margin: 2.4em 0; border: 1px solid var(--ink); position: relative; }
.decision .k { display: inline-block; background: var(--hi); color: var(--on-hi); padding: 9px 14px; font: 500 11px/1 var(--mono); letter-spacing: .08em; }
.decision .in { padding: 20px 24px 8px; }
.decision h3 { margin: 0 0 16px; font-size: 22px; line-height: 1.45; font-weight: 800; letter-spacing: -.03em; }
.decision dl { display: grid; grid-template-columns: 6.4em minmax(0, 1fr); margin: 0; font-size: 16px; line-height: 1.7; }
.decision dt, .decision dd { padding: 13px 0; border-top: 1px solid var(--soft); }
.decision dt { color: var(--meta); font: 500 12px/1.9 var(--mono); letter-spacing: .02em; }
.decision dd { margin: 0; padding-left: 8px; }

/* 왼쪽 레일 = 이 글의 목차. 현재 구간만 라임 면. */
.toc { position: sticky; top: 72px; align-self: start; padding: 56px 0 24px; max-height: calc(100vh - 72px); overflow-x: hidden; overflow-y: auto; scrollbar-width: none; }
.toc::-webkit-scrollbar { display: none; }
.toc h2 { margin: 0 0 14px; font: 500 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--meta); }
.toc ol { list-style: none; margin: 0; padding: 0; counter-reset: t; }
.toc li { counter-increment: t; border-top: 1px solid var(--soft); }
.toc li:last-child { border-bottom: 1px solid var(--soft); }
.toc a { display: grid; grid-template-columns: 26px minmax(0, 1fr); gap: 0 4px; padding: 9px 8px; margin: 0 -8px; font-size: 13.5px; line-height: 1.45; color: var(--meta); min-height: 44px; align-items: start; transition: background-color .15s, color .15s; }
.toc a::before { content: counter(t, decimal-leading-zero); font: 500 11px/1.9 var(--mono); letter-spacing: .04em; }
.toc a:hover { color: var(--ink); }
.toc a.on { background: var(--hi); color: var(--on-hi); font-weight: 700; }
.toc-m { display: none; margin: 0 0 32px; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.toc-m summary { cursor: pointer; padding: 0; min-height: 48px; display: flex; align-items: center; justify-content: space-between; font: 500 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; list-style: none; }
.toc-m summary::-webkit-details-marker { display: none; }
.toc-m summary::after { content: "+"; font: 400 20px/1 var(--mono); }
.toc-m[open] summary::after { content: "−"; }
.toc-m ol { margin: 0; padding: 0 0 8px; list-style: none; counter-reset: t; font-size: 15.5px; line-height: 1.5; }
.toc-m li { margin: 0; padding: 0; border-top: 1px solid var(--soft); counter-increment: t; }
.toc-m a { display: grid; grid-template-columns: 34px minmax(0, 1fr); padding: 10px 0; min-height: 44px; color: var(--ink); align-items: start; }
.toc-m a::before { content: counter(t, decimal-leading-zero); font: 500 11px/1.9 var(--mono); color: var(--meta); }
@media (max-width: 960px) {
  .post-grid { grid-template-columns: minmax(0, var(--measure)); }
  .toc { display: none; }
  .toc-m { display: block; }
  .prose h2 .anchor { display: none; }
}

/* 글 끝: 이전 · 다음은 두 칸 줄, 다른 글은 줄 목록 */
.post-end { max-width: 1440px; margin: 0 auto; padding: 40px var(--gx) 72px; }
.pn { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); margin: 0 0 72px; }
.pn a { display: flex; flex-direction: column; gap: 12px; padding: 22px 24px 26px 0; min-height: 44px; transition: background-color .15s; }
.pn a.next { padding: 22px 0 26px 24px; border-left: 1px solid var(--ink); }
.pn a:hover { background: var(--hi); }
.pn a.prev:hover { box-shadow: -999px 0 0 var(--hi); }
.pn.one { grid-template-columns: minmax(0, 1fr); } .pn.one a.next { border-left: 0; padding-left: 0; }
.pn .dir { font: 500 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--meta); }
.pn a:hover .dir { color: var(--on-hi); }
.pn .tt { font-size: clamp(19px, 2vw, 26px); line-height: 1.4; font-weight: 800; letter-spacing: -.035em; text-wrap: balance; }
.sec-h { margin: 0 0 20px; }
.sec-h h2 { margin: 0; font: 500 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--meta); }
.back { display: inline-flex; align-items: center; min-height: 44px; margin: 28px 0 0; font: 500 12px/1 var(--mono); letter-spacing: .04em; text-decoration: underline; text-underline-offset: 5px; }
.back:hover { background: var(--hi); text-decoration-color: transparent; }

/* 목록 페이지 */
.hero-stage { display: flex; flex-direction: column; justify-content: space-between; gap: 40px; min-height: clamp(540px, 74vh, 700px); padding-bottom: 28px; }
.hero { position: relative; z-index: 1; margin: 64px 0 0; }
.hero h1 { font-size: clamp(38px, 7.2vw, 104px); max-width: 10.6em; margin: 0 0 32px; }
.hero p { margin: 0; font-size: clamp(17px, 1.6vw, 20px); line-height: 1.75; max-width: 28em; color: var(--on-blk-2); text-wrap: pretty; }
.hero-stage .blk-top, .hero-stage .blk-foot { position: relative; z-index: 1; }
.idx { max-width: 1440px; margin: 0 auto; padding: 72px var(--gx) 0; }
.idx-h { display: flex; justify-content: space-between; align-items: baseline; border-top: 1px solid var(--ink); padding: 14px 0 28px; color: var(--meta); }
.rows { margin: 0; padding: 0; list-style: none; }
.row { position: relative; display: grid; grid-template-columns: 112px minmax(0, 1fr) 220px; column-gap: 32px; align-items: start; padding: 30px 0 32px; border-top: 1px solid var(--soft); color: var(--ink); transition: background-color .15s; }
.rows li:first-child .row { border-top-color: var(--ink); }
.rows li:last-child .row { border-bottom: 1px solid var(--ink); }
.rows li[hidden] { display: none; }
.rows li.first .row { border-top-color: var(--ink); } .rows li.last .row { border-bottom: 1px solid var(--ink); }
/* 분류 필터: 컨테이너 없는 모노 라벨 + 1px 선. 눌린 탭 = 라임 면 + 아래 굵은 선(색만으로 구분하지 않아요) */
.idx-h:has(+ .cats) { padding-bottom: 14px; }
.cats { display: flex; flex-wrap: wrap; margin: 0; padding: 0; border-top: 1px solid var(--soft); }
.cats[hidden] { display: none; }
.cats button { appearance: none; border: 0; background: transparent; color: var(--ink); cursor: pointer; min-height: 44px; padding: 0 18px; display: inline-flex; align-items: center; gap: 10px; font-size: 12px; transition: background-color .15s; }
.cats button + button { border-left: 1px solid var(--soft); }
.cats button .lb { font-size: 12px; color: inherit; }
.cats button .ct { color: var(--meta); }
.cats button:hover { background: var(--hi); }
.cats button[aria-pressed="true"] { background: var(--hi); box-shadow: inset 0 -3px 0 var(--ink); }
.cats button[aria-pressed="true"] .ct, .cats button:hover .ct { color: var(--on-hi); }
.vh { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.row:hover { background: var(--hi); box-shadow: -40px 0 0 var(--hi), 40px 0 0 var(--hi); }
.row .n { display: flex; flex-direction: column; gap: 6px; color: var(--meta); }
.row .n b { font: 700 clamp(44px, 5.4vw, 80px)/.9 var(--disp); letter-spacing: -.05em; color: var(--ink); }
.row:hover .n, .row:hover .g { color: var(--on-hi); }
.row .t { display: block; font-size: clamp(24px, 3vw, 42px); line-height: 1.28; font-weight: 800; letter-spacing: -.04em; max-width: 19em; text-wrap: balance; }
.row .d { display: block; margin-top: 16px; max-width: 34em; font-size: 16px; line-height: 1.75; font-weight: 400; letter-spacing: -.003em; color: var(--meta); }
.row:hover .d { color: var(--on-hi); }
.row .g { display: flex; flex-direction: column; gap: 6px; padding-top: 11px; text-align: right; color: var(--meta); }
.row .g b { font-weight: 500; color: var(--ink); }
.split { max-width: 1440px; margin: 0 auto; padding: 120px var(--gx) 0; display: grid; grid-template-columns: 4fr 8fr; column-gap: 56px; }
.split.flip { grid-template-columns: 8fr 4fr; padding-top: 104px; }
.split.flip > h2 { order: 2; }
.split > h2 { margin: 0; font-size: 34px; line-height: 1.3; font-weight: 800; letter-spacing: -.035em; text-wrap: balance; }
.split > h2 .lb { display: block; margin-bottom: 14px; color: var(--meta); font-weight: 500; letter-spacing: .08em; }
.topics-l { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--ink); }
.topics-l li { display: grid; grid-template-columns: 150px minmax(0, 1fr); column-gap: 28px; padding: 22px 0 22px; border-bottom: 1px solid var(--soft); }
.topics-l h3 { margin: 0; font: 500 12px/2 var(--mono); letter-spacing: .02em; color: var(--ink); }
.topics-l p { margin: 0 0 4px; font-size: 16.5px; line-height: 1.75; color: var(--text); }
.topics-l a { grid-column: 2; display: inline-flex; align-items: center; justify-self: start; min-height: 44px; font: 500 12px/1 var(--mono); letter-spacing: .02em; text-decoration: underline; text-underline-offset: 5px; }
.topics-l a:hover { background: var(--hi); text-decoration-color: transparent; }
.rules-l { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--ink); }
.rules-l li { padding: 24px 22% 26px 0; border-bottom: 1px solid var(--soft); font-size: 17px; line-height: 1.8; }
.rules-l li strong { display: block; margin-bottom: 4px; font-size: 21px; line-height: 1.5; font-weight: 800; letter-spacing: -.035em; color: var(--ink); }

/* 소개 */
.page-head { min-height: 360px; display: flex; flex-direction: column; justify-content: space-between; gap: 40px; }
.page-head h1 { font-size: clamp(56px, 12vw, 168px); line-height: 1; margin: 40px 0 0; }
.page { max-width: 1440px; margin: 0 auto; padding: 56px var(--gx) 24px; display: grid; grid-template-columns: 190px minmax(0, var(--measure)); column-gap: 56px; justify-content: start; }
.page > aside { padding-top: 6px; color: var(--meta); }
.page-body { min-width: 0; }
.page-body > p { margin: 0 0 1.3em; text-wrap: pretty; }
.page-body > p:first-child { font-size: 22px; line-height: 1.7; font-weight: 600; letter-spacing: -.02em; color: var(--ink); }
.page-body h2 { margin: 1.9em 0 .7em; font-size: 30px; line-height: 1.3; font-weight: 800; letter-spacing: -.035em; color: var(--ink); }
.page-body ul { margin: 1.4em 0; padding: 0; list-style: none; border-top: 1px solid var(--ink); }
.page-body li { position: relative; padding: 13px 0 13px 40px; border-bottom: 1px solid var(--soft); font-size: 17px; line-height: 1.75; }
.page-body li::before { content: ""; position: absolute; left: 4px; top: 1.15em; width: 7px; height: 7px; background: var(--ink); }
.page-body a { text-decoration: underline; text-underline-offset: 4px; text-decoration-thickness: 1px; }
.page-body a:hover { background: var(--hi); text-decoration-color: transparent; }

/* 푸터: 위 블록과 짝을 이루는 검은 블록 */
.site-foot { margin: 120px var(--bm) var(--bm); }
.site-foot.blk::before { display: none; }
.site-foot.blk { padding: 28px var(--gx-in, 28px) 0; }
.site-foot .foot-row { display: flex; flex-wrap: wrap; gap: 20px 48px; justify-content: space-between; align-items: flex-start; padding-bottom: 20px; border-bottom: 1px solid var(--blk-line); }
.site-foot p { margin: 0; max-width: 40em; font-size: 14px; line-height: 1.75; color: var(--on-blk-2); }
.site-foot .foot-big { display: block; margin: 28px 0 0 -.03em; padding-bottom: .08em; font-size: clamp(64px, 16.5vw, 240px); line-height: 1.04; letter-spacing: -.025em; color: var(--on-blk); white-space: nowrap; }
.site-foot nav { display: flex; gap: 0; margin-right: -12px; margin-top: -12px; }
.site-foot nav a { font: 500 12px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--on-blk); padding: 0 12px; min-height: 44px; display: inline-flex; align-items: center; }
.site-foot nav a:hover { background: var(--hi); color: var(--on-hi); }

@media (max-width: 860px) {
  :root { --gx: 20px; --bm: 0px; }
  td:first-child { white-space: normal; min-width: 8.5em; }
  .blk { --gx-in: 20px; padding-top: 20px; }
  .site-head .in { height: 52px; }
  .row { grid-template-columns: minmax(0, 1fr); row-gap: 10px; padding: 24px 0 28px; }
  .row .n { flex-direction: row; align-items: baseline; gap: 8px; order: -1; }
  .row .n b { font-size: 40px; }
  .row .g { order: -1; flex-direction: row; justify-content: space-between; text-align: left; padding: 0; }
  .row:hover { box-shadow: -20px 0 0 var(--hi), 20px 0 0 var(--hi); }
  .idx { padding-top: 56px; }
  .split, .split.flip { grid-template-columns: minmax(0, 1fr); row-gap: 28px; padding-top: 80px; }
  .split.flip > h2 { order: 0; }
  .topics-l li { grid-template-columns: minmax(0, 1fr); row-gap: 6px; }
  .topics-l a { grid-column: 1; }
  .page { grid-template-columns: minmax(0, 1fr); }
  .page > aside { display: none; }
  .pn { grid-template-columns: minmax(0, 1fr); }
  .pn a, .pn a.next { padding: 20px 0 24px; border-left: 0; }
  .pn a.next { border-top: 1px solid var(--ink); }
  .pn a.prev:hover { box-shadow: none; }
  .site-foot { margin-top: 80px; }
  .prose { padding-top: 40px; }
  .prose h2 { font-size: 27px; }
  .post-head { min-height: 440px; gap: 32px; }
  .post-head h1 { margin-top: 36px; }
  .big-no { font-size: 180px; top: -.1em; right: 4px; }
  .decision dl { grid-template-columns: minmax(0, 1fr); }
  .decision dt { border-top: 1px solid var(--soft); padding: 13px 0 0; } .decision dd { border-top: 0; padding: 2px 0 13px; }
  .decision .in { padding: 18px 18px 6px; }
}

/* 글 안 도식(정지된 평면 그림) — 같은 표를 두 방식으로 자른 모습. 점선 칸 = 조각 하나, 글자는 본문 크기. */
.cut-fig { margin: 2.4em 0; border-top: 1px solid var(--ink); }
.cut-src, .cut-col { padding: 18px 0 0; }
.cut-h { margin: 0 0 6px !important; font-size: 17px; font-weight: 800; letter-spacing: -.02em; line-height: 1.5; color: var(--ink); }
.cut-s { margin: 0 0 14px !important; font-size: 16px; line-height: 1.65; color: var(--meta); }
.cut-src { padding-bottom: 20px; border-bottom: 1px solid var(--soft); }
.cut-src table { min-width: 0; width: 100%; margin: 10px 0 0; font-size: 16px; }
.cut-src th, .cut-src td { padding: 7px 12px; font-size: 16px; }
.cut-src th { font-size: 11px; }
.cut-src td:first-child { white-space: normal; }
.cut-cols { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 28px; }
.cut-col ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; border: 0; }
.cut-col li { margin: 0; padding: 10px 14px; font-size: 16px; line-height: 1.55; border-bottom: 0; background: transparent; }
.cut-col li::before { content: none !important; }
.cut-col li::marker { content: ""; }
.cut-a li { border: 1px dashed var(--ink); }
.cut-a .ln { display: block; font-family: var(--mono); font-size: 14px; }
.cut-a .tg { display: block; margin-top: 6px; font: 500 11px/1.4 var(--mono); letter-spacing: .02em; color: var(--ink); }
.cut-a .tg::before { content: "× "; }
.cut-b li { border: 1px solid var(--ink); display: grid; grid-template-columns: auto auto minmax(0, 1fr); gap: 0 18px; }
.cut-b .cell b { display: block; font: 500 11px/1.6 var(--mono); letter-spacing: .02em; color: var(--meta); }
.cut-col > .cut-h::before { display: block; width: max-content; margin-bottom: 8px; font: 500 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.cut-a > .cut-h::before { content: "Before"; color: var(--meta); }
.cut-b > .cut-h::before { content: "After"; background: var(--hi); color: var(--on-hi); padding: 4px 6px; }
.cut-fig figcaption { margin-top: 18px; padding-top: 12px; border-top: 1px solid var(--soft); text-align: left; font-size: 14.5px; line-height: 1.65; color: var(--meta); }
@media (max-width: 760px) { .cut-cols { grid-template-columns: minmax(0, 1fr); row-gap: 20px; } }

.rank-figs { margin: 1.6em 0 .6em; display: grid; gap: 14px; }
.rank-figs figure { margin: 0; }
.rank-figs img { display: block; width: 100%; height: auto; border-radius: 10px; background: #18181c; }
.rank-figs figcaption { margin-top: 6px; font: 500 12px/1.5 var(--mono); color: var(--meta); }
.fig-note { font-size: 13px; color: var(--meta); margin-top: 0; }

.hero-fig { margin: 1.4em 0 1.8em; }
.hero-fig img { display: block; width: 100%; height: auto; border: 1px solid var(--soft); border-radius: 10px; background: #fff; }
.hero-fig figcaption { margin-top: 6px; font: 500 12px/1.5 var(--mono); color: var(--meta); }

.tldr { margin: 0 0 2em; padding: 18px 22px; border: 2px solid var(--ink); border-radius: 12px; background: #fff; box-shadow: 6px 6px 0 var(--hi); }
.tldr h2 { margin: 0 0 8px; font: 600 12px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.tldr ul { margin: 0; padding-left: 1.2em; }
.tldr li { margin: .35em 0; line-height: 1.65; }