/* 공용 머리줄·바닥글(메인·서브 공통, 2026-11-14 unslop 시안)
   기존 페이지 CSS(layout·main·site …)와 겹치지 않도록 이름은 모두 us-, 색 이름은 --u- 로 시작한다.
   unslop: Damir Sokolovsky(@heydamir), https://github.com/heydamir/unslop, CC BY 4.0 */

@font-face { font-family: "Pretendard"; src: url("/theme/u/fonts/PretendardVariable.woff2") format("woff2-variations"); font-weight: 100 900; font-display: swap; }

:root {
  /* 따뜻한 무채색(종이 / 야간 관제실) + 브랜드 골드 하나 */
  --u-bg: #f7f4ee; --u-card: #fdfbf7; --u-raised: #efe9df;
  --u-ink: #1f1b16; --u-ink-2: #5e554a; --u-ink-3: #7b7266;
  --u-line: rgba(31, 27, 22, .1); --u-line-2: rgba(31, 27, 22, .18);
  --u-d-bg: #12110f; --u-d-bg-2: #161513; --u-d-card: #1c1a18; --u-d-raised: #262421;
  --u-d-ink: #efe9de; --u-d-ink-2: #c3bbad; --u-d-ink-3: #8f897f;
  --u-d-line: rgba(239, 233, 222, .1); --u-d-line-2: rgba(239, 233, 222, .22);
  --u-gold: #c9a24a; --u-gold-hover: #d4ae58; --u-gold-ink: #7a5a14;
  --u-run: #4cc38a; --u-run-ink: #23885a;
  --u-neg: #b5432e; --u-neg-soft: #f6e8e3;  /* 문제·오류 표시에만 */
  --u-font: "Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  --u-mono: "JetBrains Mono", "IBM Plex Mono", "Cascadia Mono", ui-monospace, Consolas, monospace;
  --u-ease: cubic-bezier(.22, 1, .36, 1);
  --u-pad: 32px;
}
@media (max-width: 760px) { :root { --u-pad: 20px; } }

.us-wrap { box-sizing: border-box; width: 100%; max-width: 1280px; margin-inline: auto; padding-inline: var(--u-pad); }
.us-i { width: 18px; height: 18px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.us-i-sm { width: 16px; height: 16px; }
/* 가동 표시등: 깜빡이지 않는 작은 점. '24시간 운영'·'장기 가동' 옆에만 */
.us-lamp { display: inline-block; flex: none; width: 6px; height: 6px; border-radius: 50%; background: var(--u-run); vertical-align: middle; margin-right: 8px; transform: translateY(-1px); }
.us-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.us-top *, .us-foot * { box-sizing: border-box; }
.us-top a, .us-foot a { text-decoration: none; }
.us-top :focus-visible, .us-foot :focus-visible { outline: 2px solid var(--u-gold); outline-offset: 3px; border-radius: 4px; }

/* 머리줄 버튼(개발문의) */
.us-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 36px; padding: 0 16px; border-radius: 8px; border: 1px solid var(--u-d-line-2); color: var(--u-d-ink); font: 500 14px/1 var(--u-font); white-space: nowrap; transition: background-color .15s var(--u-ease), border-color .15s var(--u-ease), transform .12s var(--u-ease); }
.us-btn:hover { background: rgba(239, 233, 222, .06); border-color: rgba(239, 233, 222, .34); }
.us-btn:active { transform: scale(.98); }

/* ── 머리줄: 메인은 첫 화면 위에 투명하게, 서브는 같은 높이의 어두운 띠(.us-solid) ── */
.us-top { position: absolute; inset: 0 0 auto; z-index: 100; color: var(--u-d-ink); font: 400 14px/20px var(--u-font); letter-spacing: 0; -webkit-font-smoothing: antialiased; }
.us-top.us-solid { background: var(--u-d-bg); border-bottom: 1px solid var(--u-d-line); }
.us-top-row { height: 72px; display: flex; align-items: center; gap: 40px; }
.us-logo { display: block; flex: none; }
.us-logo img { display: block; width: 145px; height: 32px; }
.us-nav { display: flex; gap: 28px; margin-left: auto; }
.us-nav a, .us-lang summary { font-size: 14px; line-height: 20px; color: var(--u-d-ink-2); transition: color .15s var(--u-ease); }
.us-nav a:hover, .us-lang summary:hover, .us-nav a[aria-current] { color: var(--u-d-ink); }
.us-nav a[aria-current] { box-shadow: 0 1px 0 var(--u-gold); }
.us-top-end { display: flex; align-items: center; gap: 16px; }
.us-lang { position: relative; }
.us-lang summary { list-style: none; display: flex; align-items: center; gap: 4px; height: 36px; padding: 0 8px; border-radius: 8px; cursor: pointer; }
.us-lang summary::-webkit-details-marker { display: none; }
.us-lang[open] summary { background: rgba(239, 233, 222, .06); color: var(--u-d-ink); }
.us-lang-menu { position: absolute; right: 0; top: 44px; min-width: 144px; padding: 4px; border-radius: 12px; background: var(--u-d-card); border: 1px solid var(--u-d-line); box-shadow: 0 8px 24px rgba(0, 0, 0, .3); animation: us-menu-in .18s var(--u-ease); }
.us-lang-menu a { display: flex; align-items: center; height: 36px; padding: 0 12px; border-radius: 8px; font-size: 14px; color: var(--u-d-ink-2); }
.us-lang-menu a:hover, .us-lang-menu a[aria-current] { background: var(--u-d-raised); color: var(--u-d-ink); }
@keyframes us-menu-in { from { opacity: 0; transform: translateY(-4px); } }
.us-menu-btn { display: none; width: 40px; height: 40px; margin-right: -8px; padding: 0; border: 0; border-radius: 8px; background: none; color: var(--u-d-ink); cursor: pointer; align-items: center; justify-content: center; }
.us-menu-btn:hover { background: rgba(239, 233, 222, .06); }
.us-sheet { position: absolute; inset: 72px 0 auto; background: var(--u-d-bg); border-block: 1px solid var(--u-d-line); animation: us-menu-in .2s var(--u-ease); }
.us-sheet[hidden] { display: none; }
.us-sheet-nav { display: grid; padding-block: 8px 16px; }
.us-sheet-nav a { display: flex; align-items: center; height: 48px; font-size: 16px; color: var(--u-d-ink-2); border-bottom: 1px solid var(--u-d-line); }
.us-sheet-nav a:last-child { border-bottom: 0; }
.us-sheet-nav a:hover, .us-sheet-nav a[aria-current] { color: var(--u-d-ink); }

/* ── 바닥글 ── */
.us-foot { background: var(--u-d-bg); color: var(--u-d-ink-2); padding-block: 64px 32px; font: 400 14px/22px var(--u-font); letter-spacing: 0; border-top: 1px solid var(--u-d-line); -webkit-font-smoothing: antialiased; }
.us-foot h2, .us-foot p, .us-foot ul { margin: 0; padding: 0; }
.us-foot ul { list-style: none; }
.us-foot-grid { display: grid; grid-template-columns: 5fr 3fr 4fr; gap: 48px; }
.us-foot-brand img { display: block; width: 128px; height: 28px; }
.us-foot-brand p { margin-top: 16px; max-width: 340px; }
.us-foot-brand .us-muted { margin-top: 8px; color: var(--u-d-ink-3); font-size: 13px; }
/* 서브페이지의 h2 규칙이 덮지 않도록 강하게 */
.us-foot .us-foot-h { margin: 0 0 12px !important; padding: 0 !important; font: 500 13px/20px var(--u-font) !important; letter-spacing: 0 !important; text-transform: none !important; color: var(--u-d-ink-3) !important; }
.us-foot-list li { display: grid; grid-template-columns: 112px 1fr; gap: 8px; padding-block: 4px; }
.us-foot-list span { color: var(--u-d-ink-3); }
.us-foot-list a, .us-foot-links a { color: var(--u-d-ink); transition: color .15s var(--u-ease); }
.us-foot-list a:hover, .us-foot-links a:hover { color: var(--u-gold); }
.us-foot-end { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--u-d-line); font-size: 13px; color: var(--u-d-ink-3); }
.us-foot-links { display: flex; gap: 24px; }

@media (max-width: 1100px) {
  .us-nav { display: none; }
  .us-top-end { margin-left: auto; }
  .us-menu-btn { display: inline-flex; }
  .us-foot-grid { grid-template-columns: 1fr 1fr; }
  .us-foot-brand { grid-column: 1 / -1; }
}
@media (max-width: 760px) {
  .us-top-row { height: 64px; gap: 16px; }
  .us-sheet { inset: 64px 0 auto; }
  .us-logo img { width: 116px; height: 26px; }
  .us-top-end .us-btn { display: none; }
  .us-foot-grid { grid-template-columns: 1fr; gap: 32px; }
  .us-foot-list li { grid-template-columns: 104px 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .us-top *, .us-foot * { animation: none !important; transition: none !important; }
}

/* 일본어: 낱말 사이 공백이 없어 keep-all 이면 줄바꿈이 안 된다. 글꼴은 Pretendard 뒤에 일본어 글꼴 */
html:lang(ja) :is(.us-top, .us-foot) { word-break: normal; line-break: strict; }
/* 일본어 글꼴: Pretendard 에는 한국 한자 일부만 있어 일본어 한자 모양·굵기가 섞였다 → Pretendard 는 영문·숫자·기호에만, 한자·가나는 일본어 글꼴 */
@font-face { font-family: "Pretendard Latin"; src: url("/theme/u/fonts/PretendardVariable.woff2") format("woff2-variations"); font-weight: 100 900; font-display: swap; unicode-range: U+0000-024F, U+0300-036F, U+2000-206F, U+20A0-20CF, U+2100-214F, U+2190-21FF; }
html:lang(ja) { --u-font: "Pretendard Latin", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Yu Gothic", "Meiryo", system-ui, sans-serif; --font: var(--u-font); }
html:lang(ja) body { font-family: var(--u-font); }
/* 일본어 제목: 낱말(구절) 중간에서 끊기지 않게(Chromium), 줄 길이 고르게 */
html:lang(ja) :is(h1, h2, h3, h4) { word-break: auto-phrase; text-wrap: balance; }

/* 다른 언어: 바닥글 라벨(대표전화·사업자 등록번호 등)이 길어 칸을 넓힌다 */
html:not([lang="ko"]) .us-foot-list li { grid-template-columns: 148px 1fr; }
/* 전화·메일은 한 줄로(+82 표기가 둘로 접히지 않게), 다른 언어는 연락처 칸을 조금 넓힌다 */
.us-foot-list a { white-space: nowrap; }
@media (min-width: 1101px) { html:not([lang="ko"]) .us-foot-grid { grid-template-columns: 4fr 4fr 5fr; } }
@media (max-width: 760px) { html:not([lang="ko"]) .us-foot-list li { grid-template-columns: 1fr; gap: 0; padding-block: 6px; } }