/* 공항 출퇴근 정류장: Skillry "Airy Flight Booking" 시각 체계를 리무진 노선표로 옮긴 것.
   하늘색 바닥 위 흰 둥근 셸, 홈 첫 화면은 배지 → 두 줄 제목 → 은색 비행기 → 조건 카드.
   노선은 탑승권 꼬리표, 정류장은 세로 기둥 위의 점이다. 안내판 노랑(--sign)은 '된다' 칩과 터미널 표지에만 쓴다.
   1 토큰  2 바탕·셸  3 머리·꼬리  4 글자  5 홈 히어로·조건 카드  6 노선 꼬리표  7 정류장 기둥·집  8 표·FAQ·본문  9 모션 */

/* 1. 토큰 */
:root {
  --ground: #cde4ef;
  --shell: #ffffff;
  --paper: #f6f9fb;
  --sky-50: #f1f7fa;
  --sky-100: #e4f0f6;
  --sky-200: #cfe3ee;
  --ink: #0d1b26;
  --ink-2: #2c3f4d;
  --muted: #566a78;
  --faint: #8898a4;
  --line: rgba(13, 40, 60, .10);
  --line-strong: rgba(13, 40, 60, .18);
  --line-field: rgba(13, 40, 60, .55);
  --accent: #12658a;
  --accent-ink: #0b4a66;
  --accent-soft: #e2eff6;
  --select-bg: #bfe0ef;
  --sign: #f6c445;
  --sign-ink: #3b2a00;
  --off: #edf1f4;
  --sign-soft: #fbe3a0;
  --white: #ffffff;
  --scrim: rgba(255, 255, 255, .86);

  --font: "Pretendard Variable", Pretendard, -apple-system, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", system-ui, sans-serif;
  --fs-display: clamp(2.25rem, 4.45vw, 4rem);
  --fs-h1: clamp(1.75rem, 3.2vw, 2.5rem);
  --fs-h2: clamp(1.375rem, 2.2vw, 1.875rem);

  --r-sm: 12px;
  --r: 20px;
  --r-lg: 28px;
  --r-xl: 36px;
  --pill: 999px;

  --shadow-sm: 0 1px 2px rgba(16, 45, 66, .06), 0 1px 1px rgba(16, 45, 66, .03);
  --shadow: 0 1px 2px rgba(16, 45, 66, .05), 0 10px 28px -12px rgba(16, 45, 66, .16);
  --shadow-lg: 0 2px 6px rgba(16, 45, 66, .04), 0 30px 70px -28px rgba(16, 45, 66, .30);
  --shadow-shell: 0 0 0 1px rgba(255, 255, 255, .7), 0 40px 90px -50px rgba(18, 70, 100, .45);

  --ease-out: cubic-bezier(.23, 1, .32, 1);
  --dur-fast: 160ms;
  --dur: 220ms;

  --container: 1120px;
  --gutter: clamp(16px, 4vw, 48px);
  --shell-gap: clamp(0px, 1.3vw, 20px);
  --head-h: 72px;

  --i-chevron: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m9 18 6-6-6-6'/%3E%3C/svg%3E");
  --i-select: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232c3f4d' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  --i-plus: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12h14'/%3E%3Cpath d='M12 5v14'/%3E%3C/svg%3E");
}

/* 2. 바탕·셸: html이 하늘색 바닥, body가 흰 둥근 셸이다.
   html의 overflow를 visible이 아닌 값으로 둬야 body의 overflow: clip이 뷰포트로 올라가 스크롤을 막지 않는다. */
*, *::before, *::after { box-sizing: border-box; }

html {
  overflow: auto;
  background: var(--ground);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--head-h) + 16px);
}

body {
  display: flex;
  flex-direction: column;
  max-width: 1480px;
  min-height: calc(100vh - var(--shell-gap) * 2);
  margin: var(--shell-gap) auto;
  background: var(--shell);
  border-radius: clamp(0px, 2.4vw, var(--r-xl));
  overflow: clip;
  box-shadow: var(--shadow-shell);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  word-break: keep-all;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
@media (min-width: 768px) { body { width: calc(100% - var(--shell-gap) * 2); } }

::selection { background: var(--select-bg); color: var(--ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
img, svg { display: block; max-width: 100%; }

a {
  color: var(--accent-ink);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-decoration-color: var(--line-strong);
  text-underline-offset: 3px;
  transition: color var(--dur-fast) ease, text-decoration-color var(--dur-fast) ease;
}
a:hover { color: var(--ink); text-decoration-color: currentColor; }

.wrap {
  flex: 1 0 auto;
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin: 0 auto;
  padding: 0 var(--gutter) clamp(64px, 8vw, 96px);
}

.preview-note { padding: 8px var(--gutter); background: var(--accent-soft); color: var(--accent-ink); font-size: 14px; text-align: center; }
.ad { margin: 32px 0; }

/* 3. 머리·꼬리 */
.site-head { position: relative; border-bottom: 1px solid var(--line); }
.head-in {
  display: flex;
  align-items: center;
  gap: 24px;
  height: var(--head-h);
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: 0; color: var(--ink); text-decoration: none; border-radius: var(--r-sm); }
.brand:hover { color: var(--ink); }
.mark { flex: none; width: 32px; height: 32px; }
.mark rect { fill: var(--accent); }
.mark path { fill: none; stroke: var(--white); stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }
.brand-name { font-size: 18px; font-weight: 700; letter-spacing: -.02em; white-space: nowrap; }
.brand-tag { padding-left: 12px; border-left: 1px solid var(--line-strong); color: var(--muted); font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.head-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.head-nav a {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 16px;
  border-radius: var(--pill);
  color: var(--ink-2);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color var(--dur-fast) ease, color var(--dur-fast) ease;
}
.head-nav a:hover { background: var(--sky-50); color: var(--ink); }
@media (max-width: 960px) { .brand-tag { display: none; } }
@media (max-width: 480px) {
  :root { --head-h: 64px; }
  .head-in { gap: 8px; }
  .brand-name { font-size: 16px; }
  .head-nav a { padding: 0 12px; }
}

.site-foot { margin-top: auto; background: var(--paper); border-top: 1px solid var(--line); }
.foot-in {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 24px 48px;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin: 0 auto;
  padding: clamp(48px, 6vw, 64px) var(--gutter) 48px;
}
.foot-name { margin: 0 0 8px; color: var(--ink); font-weight: 700; letter-spacing: -.01em; }
.foot-brand p:not(.foot-name) { max-width: 64ch; margin: 0; color: var(--ink-2); font-size: 14px; }
.foot-links { display: flex; flex-wrap: wrap; gap: 4px 24px; margin: 0; font-size: 14px; }
.foot-links a { padding: 8px 0; color: var(--ink-2); text-decoration: none; }
.foot-links a:hover { color: var(--ink); }
@media (max-width: 720px) { .foot-in { grid-template-columns: minmax(0, 1fr); align-items: start; } }

/* 4. 글자 */
h1, h2, h3 { margin: 0; font-weight: 700; line-height: 1.2; letter-spacing: -.02em; text-wrap: balance; }
h1 { margin: 16px 0 16px; font-size: var(--fs-h1); line-height: 1.15; }
h2 { margin: clamp(48px, 6vw, 64px) 0 12px; font-size: var(--fs-h2); }
h3 { font-size: 18px; font-weight: 600; }
p { max-width: 68ch; margin: 0 0 12px; text-wrap: pretty; }

.crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 8px; margin-top: clamp(24px, 3.4vw, 40px); color: var(--muted); font-size: 14px; }
.crumbs a { color: var(--muted); text-decoration: none; border-radius: 6px; }
.crumbs a:hover { color: var(--ink); }
.crumbs span[aria-hidden] { display: inline-flex; font-size: 0; }
.crumbs span[aria-hidden]::before {
  content: "";
  width: 14px; height: 14px;
  background: var(--faint);
  -webkit-mask: var(--i-chevron) center / contain no-repeat;
  mask: var(--i-chevron) center / contain no-repeat;
}
.crumbs > span:last-child { color: var(--ink); font-weight: 500; }

.lead { max-width: 62ch; margin: 0 0 24px; color: var(--ink-2); font-size: 18px; line-height: 1.65; }
.basis, .sub { color: var(--muted); font-size: 14px; }
.facts { margin: 0; color: var(--ink-2); font-size: 14px; }
.t { font-variant-numeric: tabular-nums; font-weight: 600; color: var(--ink); }
.est { display: inline-block; padding: 0 6px; border-radius: 6px; background: var(--off); color: var(--ink-2); font-size: 12px; font-weight: 600; line-height: 20px; vertical-align: 1px; }

/* 노선 페이지는 한 줄 읽기 폭으로 둔다. */
.col { max-width: 760px; }

/* 5. 홈 히어로·조건 카드 */
.hero { display: grid; justify-items: center; padding-top: clamp(32px, 4vw, 48px); text-align: center; }
.kicker {
  display: inline-flex;
  align-items: center;
  height: 28px;
  margin: 0 0 24px;
  padding: 0 16px;
  border-radius: var(--pill);
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}
h1.display { margin: 0; font-size: min(9vw, var(--fs-display)); line-height: 1.1; letter-spacing: -.03em; min-width: 0; overflow-wrap: break-word; }
.display > span { display: block; }
.hero-art { display: grid; place-items: center; width: 100%; height: clamp(150px, 20vw, 280px); pointer-events: none; mix-blend-mode: multiply; }
.hero-plane { width: clamp(280px, 37.5vw, 540px); height: auto; aspect-ratio: 1536 / 566; }
.hero .lead { margin: 24px auto 0; color: var(--muted); font-size: 16px; }

.search {
  position: relative;
  z-index: 2;
  width: 100%;
  margin: 24px 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--white);
  box-shadow: var(--shadow-lg);
  text-align: left;
}
.hero .search { max-width: 1040px; margin: 0; }
.search-fields {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(0, 1fr) minmax(0, 1.25fr) minmax(0, 1fr) minmax(0, 1.25fr);
  border: 1px solid var(--line-field);
  border-radius: var(--r);
  background: var(--paper);
  overflow: hidden;
}
.sf {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  min-width: 0;
  min-height: 72px;
  padding: 12px 16px;
  transition: background-color var(--dur-fast) ease;
}
.sf + .sf { border-left: 1px solid var(--line); }
.sf:nth-child(4) { border-left-color: var(--line-strong); }
.sf:hover { background: var(--white); }
.sf:focus-within { background: var(--white); box-shadow: 0 0 0 2px var(--accent) inset; }
.sf label { color: var(--muted); font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sf select {
  width: 100%;
  min-width: 0;
  height: 28px;
  margin: 0;
  padding: 0 24px 0 0;
  border: 0;
  border-radius: 0;
  background: transparent var(--i-select) right center / 16px no-repeat;
  -webkit-appearance: none;
  appearance: none;
  color: var(--ink);
  font: inherit;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -.01em;
  cursor: pointer;
  outline: none;
}
/* 노선 페이지 좁은 열에서는 요일을 한 줄, 출근·퇴근을 각 줄에 둔다. */
.col .search-fields { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.col .sf:first-child { grid-column: 1 / -1; }
.col .sf + .sf { border-left: 0; border-top: 1px solid var(--line); }
.col .sf:nth-child(3), .col .sf:nth-child(5) { border-left: 1px solid var(--line); }
@media (max-width: 860px) {
  .search-fields { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .sf:first-child { grid-column: 1 / -1; }
  .sf + .sf { border-left: 0; border-top: 1px solid var(--line); }
  .sf:nth-child(3), .sf:nth-child(5) { border-left: 1px solid var(--line); }
  .sf:nth-child(4) { border-left-color: transparent; }
}
@media (max-width: 480px) {
  .search { padding: 8px; border-radius: var(--r); }
  .search-fields { border-radius: var(--r-sm); }
  .sf { min-height: 64px; padding: 8px 12px; }
  .sf select { font-size: 16px; }
}

/* 판정 문장(노선 페이지). page.js가 채운다. */
.status { display: grid; gap: 8px; margin: 0 0 24px; }
.status:empty { display: none; }
.status p { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px; margin: 0; color: var(--ink-2); font-size: 14px; }

/* 6. 노선 꼬리표: 왼쪽은 노선 번호, 절취선, 오른쪽은 행선지·판정·시각. 양옆 반원 홈이 탑승권 모양을 만든다. */
.sec { margin-top: clamp(64px, 8vw, 96px); }
.sec h2 { margin-top: 0; }
.routes { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr)); gap: 16px; margin-top: 24px; }
.route {
  position: relative;
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  grid-auto-rows: auto;
  align-content: start;
  column-gap: 16px;
  row-gap: 4px;
  padding: 20px 20px 20px 0;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--white);
  color: var(--ink);
  text-decoration: none;
  transition: border-color var(--dur-fast) ease, box-shadow var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
}
.route::before, .route::after {
  content: "";
  position: absolute;
  left: 79px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--shell);
  border: 1px solid var(--line);
}
.route::before { top: -10px; clip-path: inset(50% 0 0 0); }
.route::after { bottom: -10px; clip-path: inset(0 0 50% 0); }
.route:hover { color: var(--ink); border-color: var(--line-strong); box-shadow: var(--shadow); transform: translateY(-2px); }
.route > * { grid-column: 2; min-width: 0; }
.route .tag {
  grid-column: 1;
  grid-row: 1 / span 5;
  align-self: stretch;
  display: flex;
  justify-content: center;
  padding-top: 2px;
  border-right: 1px dashed var(--line-strong);
  color: var(--accent);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.2;
  overflow-wrap: anywhere;
  text-align: center;
}
.rname { font-size: 18px; font-weight: 700; letter-spacing: -.01em; line-height: 1.3; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 4px 0; }
.chips:empty { display: none; }
.chip { display: inline-flex; align-items: center; height: 26px; padding: 0 10px; border-radius: var(--pill); font-size: 13px; font-weight: 600; }
.chip.yes { background: var(--sign); color: var(--sign-ink); }
.chip.no { background: var(--off); color: var(--ink-2); }
.chip .est { margin-left: 4px; background: var(--sign-soft); color: var(--sign-ink); }
.chip.no .est { background: var(--white); color: var(--ink-2); }
.line { color: var(--ink-2); font-size: 14px; }
.rstops { margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--line); color: var(--faint); font-size: 13px; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* 둘 다 되는 정류장 목록 */
.stops { list-style: none; margin: 24px 0 0; padding: 0; border-top: 1px solid var(--line-strong); }
.srow { border-bottom: 1px solid var(--line); }
.srow a, .node .row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 16px;
  padding: 12px 0;
  color: var(--ink);
  text-decoration: none;
}
.srow a { padding: 12px 8px; border-radius: var(--r-sm); transition: background-color var(--dur-fast) ease; }
.srow a:hover { background: var(--sky-50); color: var(--ink); }
.sname { font-weight: 600; }
.right { color: var(--ink-2); font-size: 14px; text-align: right; }

/* 7. 정류장 기둥과 집 목록 */
.spine { position: relative; list-style: none; margin: 24px 0 0; padding: 0; }
.spine::before { content: ""; position: absolute; left: 7px; top: 24px; bottom: 24px; width: 2px; border-radius: 2px; background: var(--sky-200); }
.node, .term { position: relative; padding-left: 32px; }
.node { border-bottom: 1px solid var(--line); }
.node::before {
  content: "";
  position: absolute;
  left: 2px; top: 19px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--accent);
}
.node:has(details[open])::before { background: var(--accent); }
.node summary { list-style: none; cursor: pointer; border-radius: var(--r-sm); transition: background-color var(--dur-fast) ease; }
.node summary::-webkit-details-marker { display: none; }
.node summary:hover { background: var(--sky-50); }
.node summary .row { padding-left: 8px; padding-right: 40px; position: relative; }
.node summary .row::after {
  content: "";
  position: absolute;
  right: 12px; top: 16px;
  width: 16px; height: 16px;
  background: var(--muted);
  -webkit-mask: var(--i-select) center / contain no-repeat;
  mask: var(--i-select) center / contain no-repeat;
  transition: transform var(--dur) var(--ease-out);
}
.node details[open] summary .row::after { transform: rotate(180deg); }
.node > .row { padding-left: 8px; }
.term {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 16px;
  padding: 16px 0 16px 40px;
  color: var(--ink-2);
  font-size: 14px;
}
.tsign {
  position: absolute;
  left: -6px; top: 14px;
  display: inline-grid;
  place-items: center;
  width: 30px; height: 24px;
  border-radius: 6px;
  background: var(--sign);
  color: var(--sign-ink);
  font-size: 12px;
  font-weight: 700;
}
.tname { color: var(--ink); font-weight: 600; }

.homes { list-style: none; margin: 4px 0 12px 8px; padding: 0; border: 1px solid var(--line); border-radius: var(--r); background: var(--paper); overflow: hidden; }
.home { padding: 16px; border-top: 1px solid var(--line); }
.home:first-child { border-top: 0; }
.hhead, .deal { margin: 0; max-width: none; }
.hhead { margin-bottom: 4px; }
.deal { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0 8px; margin-top: 4px; }
.hn { font-size: 15px; font-weight: 700; }
.hp { font-size: 15px; font-weight: 600; }
.hm { color: var(--muted); font-size: 13px; }
.dong { margin: 0 0 12px 8px; color: var(--ink-2); font-size: 14px; }
.more { margin: -4px 0 12px 8px; color: var(--faint); font-size: 13px; }

/* 8. 표·FAQ·본문 */
table { width: 100%; margin: 12px 0 24px; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { padding: 12px 16px 12px 0; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--muted); font-size: 14px; font-weight: 600; }
.list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line-strong); }
.list li { padding: 12px 0; border-bottom: 1px solid var(--line); }

.faq { margin-top: clamp(48px, 6vw, 64px); }
.faq > h2 { margin: 0 0 8px; }
.faq > h3 { margin: 0; padding: 24px 0 8px; border-top: 1px solid var(--line); font-size: 17px; font-weight: 600; line-height: 1.45; letter-spacing: -.01em; }
.faq > p { max-width: none; margin: 0; padding: 0 0 24px; color: var(--ink-2); }
.faq > p:last-child { border-bottom: 1px solid var(--line); }

.prose { max-width: 68ch; }
.prose > h1 { margin-top: clamp(32px, 4vw, 48px); }
.prose h2 { margin: 48px 0 12px; font-size: clamp(1.25rem, 2vw, 1.5rem); }
.prose h3 { margin: 24px 0 8px; }
.prose ul { margin: 0 0 16px; padding-left: 20px; color: var(--ink-2); }
.prose li { margin: 8px 0; }

/* 9. 모션: 첫 화면은 900ms 안에 자리 잡는다. 스크립트 없이도 다 보이고, 움직임 줄이기 설정이면 끈다. */
@media (prefers-reduced-motion: no-preference) {
  .hero > * { animation: intro-up 620ms var(--ease-out) both; }
  .hero > :nth-child(2) { animation-delay: 70ms; }
  .hero > :nth-child(3) { animation: plane-in 760ms var(--ease-out) 100ms both; }
  .hero > :nth-child(4) { animation-delay: 210ms; }
  .hero > :nth-child(5) { animation-delay: 280ms; }
  @keyframes intro-up { from { opacity: 0; transform: translateY(14px); } }
  @keyframes plane-in { from { opacity: 0; transform: translate3d(-3%, 4%, 0) scale(.97); } }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

@media print {
  html { background: var(--white); }
  body { margin: 0; border-radius: 0; box-shadow: none; }
  .site-head, .site-foot, .search, .hero-art, .ad { display: none; }
}