/* style.css — 1021119 AG_FILENAME · 극단 미니멀 모노크롬(순백 + 먹 1색 + 1px 헤어라인, 그림자·그라디언트·둥근 모서리 없음)
   기능색은 「깨진 이름」 한 가지(--bad)만. 라이트 기본 + 다크 토글. 외부 폰트 없음. */
:root {
  --bg: #ffffff; --ink: #111111; --sub: #5f5f5f; --mute: #8a8a8a; --line: #e6e6e6; --soft: #f7f7f7;
  --bad: #b3261e; --sel: #111111; --sel-ink: #ffffff;
  --sans: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard", "Malgun Gothic", "맑은 고딕", "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, "D2Coding", monospace;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #0d0d0d; --ink: #ececec; --sub: #a3a3a3; --mute: #767676; --line: #262626; --soft: #151515;
  --bad: #ff7a70; --sel: #ececec; --sel-ink: #0d0d0d; color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d0d0d; --ink: #ececec; --sub: #a3a3a3; --mute: #767676; --line: #262626; --soft: #151515;
    --bad: #ff7a70; --sel: #ececec; --sel-ink: #0d0d0d; color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.65 var(--sans); word-break: keep-all; overflow-wrap: anywhere; }
a { color: inherit; text-underline-offset: 3px; text-decoration-thickness: 1px; }
code, pre, kbd { font-family: var(--mono); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.i { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: square; stroke-linejoin: miter; vertical-align: -3px; flex: none; }
.mute { color: var(--mute); }
.bad { color: var(--bad); }

/* ── 머리·바닥 ── */
.site-header { border-bottom: 1px solid var(--line); }
.header-inner, .footer-inner, .wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
.header-inner { display: flex; align-items: center; gap: 24px; height: 56px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; letter-spacing: -0.01em; }
.brand-mark { display: inline-grid; place-items: center; width: 24px; height: 24px; border: 1.5px solid var(--ink); font-size: 13px; line-height: 1; }
.nav { display: flex; gap: 20px; margin-left: auto; }
.nav a { text-decoration: none; color: var(--sub); font-size: 14px; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); }
.nav a[aria-current="page"] { text-decoration: underline; text-underline-offset: 6px; }
.icon-btn { background: none; border: 1px solid var(--line); color: var(--ink); width: 34px; height: 34px; display: grid; place-items: center; cursor: pointer; padding: 0; }
.icon-btn:hover { border-color: var(--ink); }
.site-footer { border-top: 1px solid var(--line); margin-top: 72px; padding: 28px 0 40px; color: var(--sub); font-size: 13px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 6px 20px; margin-bottom: 10px; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { color: var(--ink); }
.footer-base { color: var(--mute); }

/* ── 첫 화면 ── */
.hero { padding: 56px 0 28px; }
.hero h1 { font-size: clamp(30px, 5.4vw, 52px); line-height: 1.18; letter-spacing: -0.035em; margin: 0 0 22px; font-weight: 800; }
.lead { font-family: var(--mono); font-size: clamp(15px, 2.2vw, 19px); margin: 0 0 14px; display: flex; flex-wrap: wrap; gap: 6px 12px; align-items: baseline; }
.lead .broken { color: var(--bad); }
.lead .to { color: var(--mute); }
.lead b { font-weight: 600; }
.hero .sub { color: var(--sub); max-width: 640px; margin: 0; }

/* ── 탭 ── */
.tabs { display: flex; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--line); overflow-x: auto; scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tabs button { flex: 1 0 auto; background: none; border: 0; border-right: 1px solid var(--line); color: var(--sub); font: inherit; font-size: 14px; padding: 14px 18px; cursor: pointer; text-align: left; white-space: nowrap; }
.tabs button:last-child { border-right: 0; }
.tabs button .no { font-family: var(--mono); font-size: 11px; color: var(--mute); margin-right: 10px; }
.tabs button[aria-selected="true"] { background: var(--sel); color: var(--sel-ink); }
.tabs button[aria-selected="true"] .no { color: inherit; opacity: .6; }
.tabs button:not([aria-selected="true"]):hover { color: var(--ink); }
.panel { padding: 24px 0 8px; }

/* ── 놓는 곳 ── */
.drop { border: 1px dashed var(--mute); padding: 44px 20px; text-align: center; outline: none; }
.drop:focus-visible, .drop.over { border-style: solid; border-color: var(--ink); background: var(--soft); }
.drop-t { font-size: 18px; font-weight: 700; margin: 0 0 4px; letter-spacing: -0.01em; }
.drop-s { color: var(--sub); margin: 0 0 18px; font-size: 14px; }
.drop-btns { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }

/* ── 버튼·옵션 ── */
.btn { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--ink); background: var(--bg); color: var(--ink); font: inherit; font-size: 14px; padding: 8px 14px; cursor: pointer; text-decoration: none; line-height: 1.3; }
.btn:hover { background: var(--soft); }
.btn.primary { background: var(--ink); color: var(--bg); }
.btn.primary:hover { opacity: .88; }
.btn.ghost { border-color: var(--line); color: var(--sub); }
.btn.ghost:hover { color: var(--ink); border-color: var(--ink); background: none; }
.btn:disabled { opacity: .45; cursor: progress; }
.mini { border: 1px solid var(--line); background: none; color: var(--ink); font: inherit; font-size: 12px; padding: 2px 8px; cursor: pointer; white-space: nowrap; }
.mini:hover { border-color: var(--ink); }
.opts { display: flex; flex-wrap: wrap; gap: 10px 22px; align-items: center; padding: 16px 0; border-bottom: 1px solid var(--line); font-size: 13px; color: var(--sub); }
.chk { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; }
.chk input { accent-color: var(--ink); width: 15px; height: 15px; margin: 0; }
.opt { display: inline-flex; align-items: center; gap: 8px; }
select, textarea { font: inherit; color: var(--ink); background: var(--bg); border: 1px solid var(--line); border-radius: 0; }
select { font-size: 13px; padding: 5px 8px; }
select:focus, textarea:focus { outline: none; border-color: var(--ink); }
textarea { width: 100%; padding: 12px 14px; font-family: var(--mono); font-size: 14px; line-height: 1.7; resize: vertical; }
.field-l { display: block; font-size: 13px; color: var(--sub); margin: 0 0 8px; }

/* ── 결과 목록 ── */
.res-bar { display: flex; flex-wrap: wrap; gap: 12px 20px; justify-content: space-between; align-items: center; padding: 18px 0 14px; }
.summary { margin: 0; font-size: 14px; }
.res-act { display: flex; gap: 8px; flex-wrap: wrap; }
.list { border-top: 1px solid var(--ink); font-size: 13.5px; }
.row { display: grid; grid-template-columns: 9.5rem minmax(0, 1fr) minmax(0, 1fr) 3.4rem; gap: 14px; padding: 10px 0; border-bottom: 1px solid var(--line); align-items: start; }
.row.zip { grid-template-columns: 9.5rem minmax(0, 1fr) minmax(0, 1fr) 4.6rem; }
.row.head { font-size: 12px; color: var(--mute); padding: 8px 0; }
.row.dim { color: var(--mute); }
.row .before { font-family: var(--mono); color: var(--bad); }
.row.dim .before { color: var(--mute); }
.row .before.same { color: var(--sub); }
@media (max-width: 640px) { .row .before.same::after { content: ""; } }
.row .after { font-family: var(--mono); }
.row .dir { opacity: .5; }
.row .size { font-family: var(--mono); font-size: 12px; color: var(--mute); text-align: right; }
.row .mini { justify-self: end; }
.st { display: flex; flex-wrap: wrap; gap: 4px; }
.chip { font-size: 11px; line-height: 1.5; padding: 0 6px; border: 1px solid var(--bad); color: var(--bad); white-space: nowrap; }
.chip.ok { border-color: var(--line); color: var(--mute); }
.chip.mute { border-color: var(--line); color: var(--mute); }
.more { color: var(--mute); font-size: 13px; padding: 10px 0; margin: 0; }
.trow { padding: 12px 0; border-bottom: 1px solid var(--line); }
.list#listText { border-top: 0; margin-top: 8px; }
.list#listText:not(:empty) { border-top: 1px solid var(--ink); }
.tline { display: flex; flex-wrap: wrap; gap: 6px 12px; align-items: baseline; font-family: var(--mono); }
.tline .before { color: var(--bad); }
.tline .to { color: var(--mute); }
.tline .after { font-weight: 600; }
.tmeta { margin-top: 6px; display: flex; gap: 4px; flex-wrap: wrap; }
.talt { margin-top: 6px; font-size: 13px; color: var(--sub); }
.talt .after { font-family: var(--mono); color: var(--ink); }

/* ── 스크립트 ── */
.script-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-top: 1px solid var(--ink); }
.script { padding: 20px 24px 24px 0; }
.script + .script { padding: 20px 0 24px 24px; border-left: 1px solid var(--line); }
.script h2 { font-size: 17px; margin: 0 0 12px; letter-spacing: -0.01em; }
.script ol { padding-left: 20px; margin: 0 0 16px; color: var(--sub); font-size: 14px; }
.script li { margin-bottom: 6px; }
.note { font-size: 13px; color: var(--sub); border-top: 1px solid var(--line); padding-top: 14px; }
.code-wrap { position: relative; }
.code-wrap pre { margin: 0; background: var(--soft); border: 1px solid var(--line); padding: 14px 16px; padding-right: 76px; overflow-x: auto; font-size: 12.5px; line-height: 1.6; white-space: pre-wrap; word-break: break-all; }
.copy-code { position: absolute; top: 8px; right: 8px; display: inline-flex; gap: 4px; align-items: center; border: 1px solid var(--line); background: var(--bg); color: var(--ink); font: inherit; font-size: 12px; padding: 3px 8px; cursor: pointer; }
.copy-code:hover { border-color: var(--ink); }
.copy-code .i { width: 13px; height: 13px; vertical-align: 0; }

/* ── 소개 블록 ── */
.explain { margin-top: 56px; }
.explain > h2 { font-size: 13px; font-weight: 600; color: var(--mute); letter-spacing: .02em; margin: 40px 0 0; padding-bottom: 10px; border-bottom: 1px solid var(--ink); }
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); }
.feature { padding: 18px 20px 20px 0; border-bottom: 1px solid var(--line); }
.feature h3 { font-size: 15px; margin: 0 0 6px; }
.feature p { margin: 0; color: var(--sub); font-size: 14px; }
.guide-links { list-style: none; padding: 0; margin: 0; }
.guide-links li { border-bottom: 1px solid var(--line); }
.guide-links a { display: block; padding: 12px 0; text-decoration: none; }
.guide-links a:hover { text-decoration: underline; }

/* ── 일반 페이지·가이드 ── */
.page { padding-top: 28px; }
.crumb { font-size: 12px; color: var(--mute); display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 28px; }
.crumb a { text-decoration: none; }
.crumb a:hover { color: var(--ink); }
.page-head { border-bottom: 1px solid var(--ink); padding-bottom: 22px; margin-bottom: 28px; }
.page-head h1 { font-size: clamp(26px, 4.2vw, 40px); line-height: 1.22; letter-spacing: -0.03em; margin: 0 0 10px; font-weight: 800; }
.page-head p { color: var(--sub); margin: 0; max-width: 720px; }
.page-head .meta-line { font-size: 12px; color: var(--mute); margin-top: 10px; font-family: var(--mono); }
.toc { margin: 0 0 28px; font-size: 14px; }
.toc ol { margin: 0; padding-left: 20px; color: var(--sub); columns: 2; column-gap: 32px; }
.toc a { text-decoration: none; }
.toc a:hover { text-decoration: underline; color: var(--ink); }
.prose { max-width: 720px; font-size: 16px; line-height: 1.8; }
.prose h2 { font-size: 22px; letter-spacing: -0.02em; margin: 44px 0 12px; padding-top: 18px; border-top: 1px solid var(--line); line-height: 1.35; }
.prose h3 { font-size: 17px; margin: 28px 0 8px; }
.prose p, .prose ul, .prose ol { margin: 0 0 16px; }
.prose li { margin-bottom: 6px; }
.prose code { font-size: .88em; background: var(--soft); border: 1px solid var(--line); padding: 0 4px; }
.prose pre code { background: none; border: 0; padding: 0; font-size: inherit; }
.prose .code-wrap { margin: 0 0 18px; }
.prose blockquote { margin: 0 0 18px; padding: 2px 0 2px 16px; border-left: 2px solid var(--ink); color: var(--sub); }
.prose blockquote p { margin: 0; }
.tbl-wrap { overflow-x: auto; margin: 0 0 18px; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { text-align: left; padding: 9px 12px 9px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
thead th { border-bottom: 1px solid var(--ink); font-size: 13px; color: var(--sub); font-weight: 600; }
td code { white-space: nowrap; }
.cta { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--ink); padding: 9px 16px; text-decoration: none; font-size: 15px; }
.cta:hover { background: var(--ink); color: var(--bg); }
.faq-item { border-bottom: 1px solid var(--line); padding: 4px 0 6px; }
.faq-item h3 { margin-top: 18px; }
.sources { margin-top: 36px; font-size: 14px; }
.sources h2 { font-size: 15px; }
.sources ul { color: var(--sub); }
.card-list { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--ink); }
.card { display: block; text-decoration: none; padding: 22px 24px 24px 0; border-bottom: 1px solid var(--line); }
.card:nth-child(2n) { padding: 22px 0 24px 24px; border-left: 1px solid var(--line); }
.card .no { font-family: var(--mono); font-size: 12px; color: var(--mute); }
.card h2 { font-size: 18px; letter-spacing: -0.015em; margin: 8px 0 6px; line-height: 1.4; }
.card p { margin: 0; color: var(--sub); font-size: 14px; }
.card:hover h2 { text-decoration: underline; text-underline-offset: 4px; }
.pager { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--ink); margin-top: 40px; }
.pager a { padding: 16px 16px 16px 0; text-decoration: none; font-size: 12px; color: var(--mute); }
.pager a.next { text-align: right; padding: 16px 0 16px 16px; border-left: 1px solid var(--line); }
.pager b { display: block; color: var(--ink); font-size: 15px; font-weight: 600; margin-top: 4px; }
.pager a:hover b { text-decoration: underline; }
.notfound { text-align: center; padding: 80px 20px; }
.notfound .code { font-family: var(--mono); font-size: 64px; font-weight: 700; }

/* ── 광고 영역(§4-1: 래퍼에 radius·overflow 금지) ── */
.ad-grid { display: flex; flex-direction: column; align-items: center; gap: 14px; width: 100%; max-width: 672px; margin: 40px auto 0; }
.ad-grid[data-ad-layout="mixed"] { max-width: 760px; }
.ad-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; width: 100%; }
.ad-cell { min-height: 50px; }

/* ── 알림 ── */
.toast { position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px); background: var(--ink); color: var(--bg); padding: 10px 16px; font-size: 14px; opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; z-index: 50; max-width: calc(100% - 32px); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ── 좁은 화면 ── */
@media (max-width: 860px) {
  .feature-list { grid-template-columns: 1fr 1fr; }
  .script-grid { grid-template-columns: 1fr; }
  .script, .script + .script { padding: 20px 0; border-left: 0; }
  .script + .script { border-top: 1px solid var(--line); }
}
@media (max-width: 640px) {
  body { font-size: 14.5px; }
  .header-inner, .footer-inner, .wrap { padding: 0 16px; }
  .header-inner { gap: 12px; }
  .brand-name { font-size: 14px; }
  .nav { gap: 14px; }
  .hero { padding: 36px 0 20px; }
  .tabs button { padding: 12px 14px; flex: 0 0 auto; }
  .drop { padding: 32px 16px; }
  .row, .row.zip { grid-template-columns: minmax(0, 1fr) auto; gap: 4px 10px; }
  .row.head { display: none; }
  .row .st { grid-column: 1 / -1; }
  .row .before { grid-column: 1 / -1; }
  .row .after { grid-column: 1; }
  .row .size, .row .mini { grid-column: 2; grid-row: 3; align-self: center; }
  .row .before::after { content: " →"; color: var(--mute); }
  .feature-list, .card-list { grid-template-columns: 1fr; }
  .feature { padding-right: 0; }
  .card, .card:nth-child(2n) { padding: 18px 0; border-left: 0; }
  .toc ol { columns: 1; }
  .pager { grid-template-columns: 1fr; }
  .pager a.next { text-align: left; border-left: 0; border-top: 1px solid var(--line); padding: 16px 0; }
}