/* K-water 지식정보포털 스타일(물·대화형). 색은 아래 :root 값만 바꾸면 전체가 바뀐다. */
@font-face {
  font-family: "Pretendard";
  src: url("fonts/PretendardVariable.woff2") format("woff2-variations");
  font-weight: 45 920;
  font-display: swap;
}
:root {
  color-scheme: light;
  --ink: #0f2a36;
  --ink-2: #3d5866;
  --ink-3: #7b919c;
  --sea: #0a7ea4;
  --sea-deep: #075a78;
  --aqua: #22b5d3;
  --foam: #e9f7fb;
  --mist: #f4f9fb;
  --line: #dcebf1;
  --mark: #fff1c7;
  --warn: #a35a00;
  --warn-bg: #fff6e6;
  --water: linear-gradient(135deg, #2cc0dc 0%, #0a7ea4 100%);
  --report: #0a7ea4;
  --paper: #e0784a;
  --patent: #20a387;
  --shadow: 0 8px 28px rgba(7, 90, 120, .09);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Pretendard", "Malgun Gothic", "Apple SD Gothic Neo", sans-serif;
  color: var(--ink);
  background: #fff;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  word-break: keep-all;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; text-align: inherit; }
.icon { flex: none; vertical-align: middle; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
[hidden] { display: none !important; }
body.modal-open { overflow: hidden; }
:focus-visible { outline: 2px solid var(--sea); outline-offset: 2px; border-radius: 6px; }

/* ── 머리글 ── */
.top { background: rgba(255, 255, 255, .92); backdrop-filter: blur(8px); position: sticky; top: 0; z-index: 20; border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 14px; white-space: nowrap; }
.brand img { display: block; width: auto; height: 38px; }   /* K-water 공식 마크: 비율·색을 바꾸지 않는다(CI 규정) */
.brand span { padding-left: 14px; border-left: 1px solid var(--line); font-size: 19px; font-weight: 800; color: var(--ink); letter-spacing: -.5px; }
.top-nav { display: flex; gap: 8px; font-size: 14px; }
.top-nav a, .top-nav span { display: inline-flex; align-items: center; gap: 5px; padding: 6px 12px; border-radius: 999px; }
.top-nav a { color: var(--sea-deep); background: var(--foam); font-weight: 600; }
.top-nav a:hover { background: #d4eff7; }
.top-nav .off { color: var(--ink-3); }

/* ── 검색창(물어보기) ── */
.ask { max-width: 820px; margin: 0 auto; }
.ask-bar { display: flex; align-items: center; gap: 4px; height: 56px; padding: 0 6px 0 18px; border-radius: 999px; background: #fff; border: 1.5px solid #bfe2ee; box-shadow: var(--shadow); transition: border-color .15s, box-shadow .15s; }
.ask-bar:focus-within { border-color: var(--aqua); box-shadow: 0 0 0 4px rgba(34, 181, 211, .15), var(--shadow); }
.ask-drop { color: var(--aqua); display: grid; place-items: center; }
.ask-bar input { flex: 1; min-width: 0; height: 100%; border: 0; outline: 0; background: transparent; font: inherit; font-size: 17px; color: var(--ink); padding: 0 8px; }
.ask-bar input::placeholder { color: #98aeb8; }
.ask-bar input::-webkit-search-cancel-button { display: none; }
.ask-clear { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; color: var(--ink-3); }
.ask-clear:hover { background: var(--mist); color: var(--ink); }
.ask-go { display: inline-flex; align-items: center; gap: 7px; height: 44px; padding: 0 22px; border-radius: 999px; background: var(--water); color: #fff; font-weight: 700; font-size: 16px; white-space: nowrap; transition: filter .15s, transform .15s; }
.ask-go:hover { filter: brightness(1.06); }
.ask-go:active { transform: scale(.98); }
.ask.big .ask-bar { height: 66px; padding-left: 22px; }
.ask.big .ask-bar input { font-size: 19px; }
.ask.big .ask-go { height: 52px; padding: 0 28px; font-size: 17px; }
.ai-chip { display: inline-flex; align-items: center; gap: 8px; margin: 12px 0 0 18px; padding: 5px 13px 5px 10px; border-radius: 999px; background: #fff; border: 1px solid var(--line); font-size: 14px; color: var(--ink-2); cursor: pointer; user-select: none; transition: border-color .15s; }
.ai-chip:hover { border-color: var(--aqua); }
.ai-chip input[type="checkbox"] { position: absolute; opacity: 0; width: 1px; height: 1px; }
.ai-chip b { color: var(--sea); }
.ai-dot { width: 26px; height: 15px; border-radius: 8px; background: var(--water); position: relative; transition: background .2s; }
.ai-dot::after { content: ""; position: absolute; top: 2px; left: 13px; width: 11px; height: 11px; border-radius: 50%; background: #fff; transition: left .2s; }
.ai-off .ai-dot { background: #c7d5dc; }
.ai-off .ai-dot::after { left: 2px; }
.ai-off .ai-chip b { color: var(--ink-3); }

/* ── 첫 화면 ── */
.lake { position: relative; background: linear-gradient(180deg, #e2f4fa 0%, #f2fafd 60%, #fff 100%); padding: 40px 0 92px; overflow: hidden; }
.lake::before { content: ""; position: absolute; width: 520px; height: 520px; right: -140px; top: -220px; border-radius: 50%; background: radial-gradient(circle, rgba(44, 192, 220, .22), transparent 65%); }
.lake-in { position: relative; text-align: center; }
.lake h1 { margin: 0; font-size: 38px; line-height: 1.25; font-weight: 800; letter-spacing: -1.2px; color: var(--ink); }
.lake h1 em { font-style: normal; color: var(--sea); white-space: nowrap; }   /* 좁은 화면에서는 '무엇이든 물어보세요'째 다음 줄로 */
.lake-sub { margin: 10px 0 22px; color: var(--ink-2); font-size: 17px; }
.lake .ask { text-align: left; }
.lake-waves { position: absolute; left: 0; bottom: 0; width: 100%; height: 88px; }
/* 첫 화면은 한 화면에(노트북 1536×730까지 스크롤 없음): 남는 높이는 물결 칸이 채우고 바닥글은 맨 아래에 붙는다 */
body.page-home { display: flex; flex-direction: column; min-height: 100vh; }
.page-home .lake { flex: 1 0 auto; display: flex; flex-direction: column; justify-content: center; }
.page-home .lake-in, .page-home .brief { width: 100%; }   /* 세로 줄 세우기 안에서도 폭을 다 쓴다(안 쓰면 내용만큼 좁아진다) */
.hints { max-width: 820px; margin: 16px auto 0; text-align: left; }
.hints p { margin: 0 0 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.hints span { font-size: 13.5px; font-weight: 700; color: var(--ink-3); margin-right: 4px; min-width: 112px; }
.hint { font-size: 14.5px; padding: 6px 14px; border-radius: 999px; background: #fff; border: 1px solid var(--line); color: var(--ink-2); transition: all .15s; }
.hint:hover { border-color: var(--aqua); color: var(--sea-deep); transform: translateY(-1px); }
.hint.topic { background: rgba(255, 255, 255, .6); }
.empty { color: var(--ink-3); }

/* ── 첫 화면: 찾을 수 있는 자료(건수 띠) ── */
.stock { display: inline-flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 4px 0; margin: 0 0 16px; padding: 6px; border-radius: 999px; background: rgba(255, 255, 255, .75); border: 1px solid #cde8f1; font-size: 14px; color: var(--ink-2); }
.stock > span { display: inline-flex; align-items: center; padding: 1px 14px; white-space: nowrap; }
.stock .dot { margin-right: 6px; }
.stock > span + span { border-left: 1px solid var(--line); }
.stock b { font-size: 15px; font-weight: 800; color: var(--ink); letter-spacing: -.2px; margin: 0 1px 0 7px; }
.stock .count-idle { margin-left: 7px; color: var(--ink-3); font-weight: 600; }
.stock .count-idle.warn { color: var(--warn); }

/* ── 첫 화면: 오늘의 브리프(데일리 브리프 공개 페이지에서 읽어 온다) ── */
.brief { position: relative; z-index: 1; margin: -60px auto 26px; }   /* 물결 위에 살짝 걸친다 */
.brief-loading { display: grid; place-items: center; min-height: 260px; margin: 0; border-radius: 24px; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); color: var(--ink-3); }
.brief-box { display: grid; grid-template-columns: 224px minmax(0, 1fr); border-radius: 24px; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); overflow: hidden; }
.brief-day { position: relative; display: flex; flex-direction: column; gap: 13px; padding: 22px 22px 20px; background: linear-gradient(165deg, #0b7aa0 0%, #0d4c63 100%); color: #fff; overflow: hidden; }
.brief-day::after { content: ""; position: absolute; right: -70px; bottom: -70px; width: 220px; height: 220px; border-radius: 50%; background: radial-gradient(circle, rgba(44, 192, 220, .38), transparent 70%); pointer-events: none; }
.brief-day > * { position: relative; z-index: 1; margin: 0; }
.brief-name { font-size: 12.5px; font-weight: 700; letter-spacing: .2px; color: rgba(255, 255, 255, .75); }
.brief-name b { display: block; margin-top: 2px; font-size: 21px; font-weight: 800; letter-spacing: -.4px; color: #fff; }
.brief-date { display: flex; align-items: center; gap: 12px; }
.brief-date b { font-size: 50px; font-weight: 800; line-height: .95; letter-spacing: -2.5px; }
.brief-date span { font-size: 15px; font-weight: 600; line-height: 1.45; color: rgba(255, 255, 255, .9); }
.brief-play { display: flex; align-items: center; gap: 10px; width: 100%; padding: 7px 16px 7px 7px; border-radius: 999px; background: rgba(255, 255, 255, .14); color: #fff; font-size: 14px; font-weight: 700; transition: background .15s; }
.brief-play:hover { background: rgba(255, 255, 255, .22); }
.brief-play:disabled { opacity: .6; cursor: default; }
.brief-play-ic { flex: none; display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: #fff; color: var(--sea-deep); }
.brief-play-ic > span { display: grid; }
.brief-play .ic-pause, .brief-play.playing .ic-play { display: none; }
.brief-play.playing .ic-pause { display: grid; }
.brief-play-text { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 5px; }
.brief-play-bar { height: 3px; border-radius: 2px; background: rgba(255, 255, 255, .25); overflow: hidden; }
.brief-play-bar i { display: block; width: 0; height: 100%; background: #fff; transition: width .25s linear; }
.brief-legend { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 5px 14px; font-size: 13.5px; color: rgba(255, 255, 255, .88); }
.brief-legend li { display: flex; align-items: center; gap: 8px; }
.brief-legend i { width: 8px; height: 8px; border-radius: 50%; background: var(--lv); box-shadow: 0 0 0 3px rgba(255, 255, 255, .15); }
.brief-legend b { margin-left: 2px; font-weight: 800; color: #fff; }
.brief-day .brief-all { margin-top: auto; display: inline-flex; align-items: center; gap: 5px; font-size: 14px; font-weight: 700; color: #fff; }
.brief-all:hover { text-decoration: underline; text-underline-offset: 3px; }
.brief-main { min-width: 0; display: grid; grid-template-columns: minmax(0, 1fr) 236px; gap: 10px 16px; align-items: start; padding: 18px 20px; }
.brief-top { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; }
.brief-feature { display: flex; flex-direction: column; gap: 7px; min-width: 0; padding: 16px 18px; border-radius: 18px; background: var(--mist); border: 1px solid transparent; transition: all .15s; }
.brief-feature:hover { background: #fff; border-color: var(--line); box-shadow: var(--shadow); transform: translateY(-2px); }
.brief-feature .kicker { margin: 0; }
.brief-feature h3 { margin: 0; font-size: 17px; font-weight: 800; line-height: 1.45; letter-spacing: -.3px; }
.brief-summary { margin: 0; font-size: 14.5px; line-height: 1.65; color: #4a6270; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.brief-meta { margin: auto 0 0; padding-top: 2px; font-size: 12.5px; color: var(--ink-3); }
.brief-meta i { font-style: normal; color: #b9cbd3; margin: 0 4px; }
.brief-list { list-style: none; margin: 0; padding: 0; }   /* 나머지 기사: 오른쪽 좁은 칸에 제목만 */
.brief-list li + li { border-top: 1px solid var(--line); }
.brief-row { display: flex; flex-direction: column; gap: 3px; padding: 10px; border-radius: 12px; font-size: 14px; transition: background .15s; }
.brief-row:hover { background: var(--mist); }
.brief-row:hover b { color: var(--sea-deep); }
.brief-row-head { font-size: 12.5px; font-weight: 600; color: var(--ink-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.brief-row b { font-weight: 700; line-height: 1.45; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.brief-row small, .brief-row .icon { display: none; }

.lv-card-1 { --lv: #e05252; --lv-text: #c0392b; }
.lv-card-2 { --lv: #e0a325; --lv-text: #a86b00; }
.lv-card-3 { --lv: #3fb373; --lv-text: #23874f; }
.lv-tag { margin-right: 6px; color: var(--lv-text); font-weight: 800; }
.brief-off { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; padding: 18px 22px; border-radius: 20px; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); color: var(--ink-2); }
.brief-off span, .brief-off a { display: inline-flex; align-items: center; gap: 6px; }
.brief-off a { color: var(--sea); font-weight: 600; }
.pv-why { background: var(--foam); }
.pv-why h3 { display: flex; align-items: center; gap: 6px; }
.pv-why h3 .icon { color: var(--aqua); }
.pv-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.pv-note { margin: 16px 0 0; font-size: 12.5px; color: var(--ink-3); }
/* 키 작은 넓은 화면(노트북 1536×730 등): 간격만 줄여 첫 화면이 한 화면에 들어가게. 큰 모니터 모습은 그대로 */
@media (max-height: 800px) and (min-width: 961px) {
  .top-in { height: 58px; }
  .lake { padding: 20px 0 68px; }
  .lake-waves { height: 68px; }
  .stock { margin-bottom: 10px; padding: 4px; }
  .lake h1 { font-size: 34px; }
  .lake-sub { margin: 6px 0 14px; font-size: 15.5px; }
  .ask.big .ask-bar { height: 58px; }
  .ask.big .ask-go { height: 46px; }
  .lake .ai-chip { margin-top: 8px; }
  .hints { margin-top: 10px; }
  .hints p { margin-bottom: 6px; }
  .hint { padding: 4px 12px; font-size: 14px; }
  .brief { margin: -56px auto 14px; }
  .brief-day { gap: 9px; padding: 16px 18px; }
  .brief-date b { font-size: 42px; }
  .brief-main { padding: 14px 16px; }
  .brief-feature { padding: 14px 16px; }
  .brief-row { padding: 7px 8px; gap: 2px; }
  .page-home .foot { padding: 10px 0 12px; }
  .lake { padding-bottom: 56px; }
  .lake-waves { height: 56px; }
}
/* 더 낮은 화면(1366×650 등): 설명 한 줄은 감추고 브리프는 더 낮게(요약은 한 줄, 다 보려면 미리보기) */
@media (max-height: 680px) and (min-width: 961px) {
  .lake { padding: 14px 0 56px; }
  .lake-waves { height: 56px; }
  .lake-sub { display: none; }
  .lake h1 { margin-bottom: 14px; }
  .brief-summary { -webkit-line-clamp: 1; }
  .brief-row b { -webkit-line-clamp: 1; }
  .brief-date b { font-size: 36px; }
  .brief-play { padding: 5px 14px 5px 5px; }
  .brief-play-ic { width: 28px; height: 28px; }
  .brief-day { gap: 7px; }
  .brief-name { font-size: 0; }   /* 작은 글씨 '경영연구소 데일리 브리프'만 감춘다('오늘의 브리프'는 그대로) */
  .brief-name b { margin-top: 0; }
}
@media (max-width: 1080px) {
  .brief-main { grid-template-columns: minmax(0, 1fr); }
  .brief-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0 12px; }
  .brief-list li + li { border-top: 0; }
}
@media (max-width: 960px) {
  .brief { margin-top: -56px; }
  .brief-box { grid-template-columns: minmax(0, 1fr); }
  .brief-day { flex-direction: row; flex-wrap: wrap; align-items: center; gap: 14px 20px; padding: 20px; }
  .brief-name { width: 100%; }
  .brief-date b { font-size: 46px; }
  .brief-play { width: auto; flex: 1 1 240px; }
  .brief-legend { display: flex; flex-wrap: wrap; gap: 6px 16px; }
  .brief-legend b { margin-left: 2px; }
  .brief-day .brief-all { margin: 0 0 0 auto; }
}
@media (max-width: 640px) {
  .stock { font-size: 12.5px; padding: 5px 2px; }
  .stock > span { padding: 1px 8px; }
  .stock .dot { width: 7px; height: 7px; margin-right: 5px; }
  .stock b { font-size: 14px; margin-left: 5px; }
  .stock .count-idle { margin-left: 5px; }
  .brief-main { padding: 12px 10px 6px; }
  .brief-feature { padding: 16px; }
}

/* ── 검색 결과: 틀 ── */
.ask-strip { padding: 22px 0 18px; background: linear-gradient(180deg, #ecf8fc, #fff); border-bottom: 1px solid var(--line); }
.ask-strip .ask { max-width: none; display: flex; align-items: center; gap: 14px; }
.ask-strip .ask-bar { flex: 1; }
.ask-strip .ai-chip { margin: 0; flex: none; }
.layout { display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 36px; padding-top: 28px; padding-bottom: 80px; }
.side { position: sticky; top: 88px; align-self: start; display: flex; flex-direction: column; gap: 18px; }
.side-title { margin: 0 0 6px 12px; font-size: 13px; font-weight: 700; color: var(--ink-3); letter-spacing: .3px; }
.side-nav { display: flex; flex-direction: column; gap: 2px; }
.side-item { display: flex; align-items: center; gap: 9px; padding: 10px 12px; border-radius: 12px; color: var(--ink-2); font-weight: 600; transition: background .15s; }
.side-item:hover { background: var(--mist); }
.side-item.on { background: var(--foam); color: var(--sea-deep); }
.side-item small { margin-left: auto; font-size: 13px; font-weight: 600; color: var(--ink-3); }
.side-item.on small { color: var(--sea); }
.side-tip { padding: 14px 16px; border-radius: 14px; background: var(--mist); font-size: 13.5px; color: var(--ink-2); }
.side-tip p { margin: 0 0 6px; }
.side-tip-title { display: flex; align-items: center; gap: 6px; font-weight: 700; color: var(--ink); }
.side-tip a { color: var(--sea); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; }
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--report); flex: none; }
.dot-paper { background: var(--paper); }
.dot-patent { background: var(--patent); }

/* ── 검색 결과: AI 답변(대화) ── */
.chat { margin-bottom: 38px; display: flex; flex-direction: column; gap: 14px; }
.bubble.me { align-self: flex-end; max-width: 78%; padding: 11px 18px; border-radius: 20px 20px 6px 20px; background: var(--sea); color: #fff; font-weight: 600; box-shadow: 0 6px 18px rgba(10, 126, 164, .25); }
.bubble.me p { margin: 0; }
.bubble.bot { display: flex; gap: 12px; align-items: flex-start; }
.avatar { flex: none; width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; color: #fff; background: var(--water); box-shadow: 0 4px 14px rgba(10, 126, 164, .3); }
.bot-body { flex: 1; min-width: 0; padding: 16px 22px 14px; border-radius: 6px 20px 20px 20px; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); }
.bot-name { margin: 0 0 8px; font-weight: 800; color: var(--sea-deep); }
.bot-name small { font-weight: 500; color: var(--ink-3); margin-left: 6px; font-size: 13px; }
.ai-text { font-size: 16px; line-height: 1.8; }
.ai-text ul { margin: 0; padding-left: 20px; }
.ai-text li { margin: 2px 0 8px; }
.ai-text li::marker { color: var(--aqua); }
.ai-text p { margin: 0 0 8px; }
.ai-text .warn { color: var(--warn); }
.cite { display: inline-grid; place-items: center; min-width: 20px; height: 20px; padding: 0 6px; margin: 0 1px; border-radius: 6px; background: var(--foam); color: var(--sea-deep); font-size: 12px; font-weight: 800; vertical-align: 1px; line-height: 1; border: 1px solid #c8e8f2; transition: all .15s; }
.cite:hover { background: var(--sea); color: #fff; border-color: var(--sea); }
.cites { white-space: nowrap; margin-left: 3px; }
.caret { display: inline-block; width: 7px; height: 17px; margin-left: 2px; vertical-align: -3px; border-radius: 2px; background: var(--aqua); animation: blink 1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.typing { display: flex; align-items: center; gap: 5px; color: var(--ink-3); font-size: 14.5px; }
.typing span { width: 7px; height: 7px; border-radius: 50%; background: var(--aqua); animation: bob 1.2s infinite ease-in-out; }
.typing span:nth-child(2) { animation-delay: .15s; } .typing span:nth-child(3) { animation-delay: .3s; margin-right: 6px; }
@keyframes bob { 0%, 80%, 100% { transform: translateY(0); opacity: .45; } 40% { transform: translateY(-5px); opacity: 1; } }
.evidence { margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--line); }
.evidence-title { margin: 0 0 8px; font-size: 13.5px; font-weight: 700; color: var(--ink-3); }
.evidence-row { list-style: none; margin: 0; padding: 2px 2px 8px; display: flex; gap: 10px; overflow-x: auto; scroll-snap-type: x proximity; }
.evidence-row li { flex: 0 0 220px; scroll-snap-align: start; }
.evidence-row button { width: 100%; height: 100%; display: flex; flex-direction: column; gap: 4px; padding: 11px 13px; border-radius: 12px; background: var(--mist); border: 1px solid transparent; transition: all .15s; }
.evidence-row button:hover, .evidence-row li.active button { background: #fff; border-color: var(--aqua); box-shadow: 0 4px 14px rgba(34, 181, 211, .18); }
.evidence-row .num { width: 20px; height: 20px; border-radius: 6px; display: grid; place-items: center; background: var(--sea); color: #fff; font-size: 11.5px; font-weight: 800; }
.evidence-row b { font-size: 13.5px; font-weight: 600; line-height: 1.45; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.evidence-row small { font-size: 12px; color: var(--ink-3); }
.ai-note { display: flex; align-items: center; gap: 6px; margin: 6px 0 0; font-size: 12.5px; color: var(--ink-3); }

/* ── 검색 결과: 자료원별 묶음과 카드 ── */
.group { margin-bottom: 36px; }
.group-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.group-head h2 { display: flex; align-items: center; gap: 9px; margin: 0; font-size: 20px; font-weight: 800; letter-spacing: -.3px; }
.group-head h2 small { font-size: 14px; font-weight: 600; color: var(--ink-3); }
.more { display: inline-flex; align-items: center; gap: 4px; font-size: 14px; font-weight: 600; color: var(--sea); padding: 5px 12px; border-radius: 999px; background: var(--foam); }
.more:hover { background: #d4eff7; }
.range { font-size: 13.5px; color: var(--ink-3); }
.group-note { margin: -4px 0 10px; font-size: 13.5px; color: var(--ink-3); }
.card { padding: 18px 22px 16px; margin-bottom: 12px; border-radius: 16px; background: #fff; border: 1px solid var(--line); transition: box-shadow .15s, border-color .15s, transform .15s; }
.card:hover { border-color: #bfe2ee; box-shadow: var(--shadow); transform: translateY(-1px); }
.kicker { display: flex; flex-wrap: wrap; align-items: center; gap: 0 6px; margin: 0 0 6px; font-size: 13px; font-weight: 700; color: var(--ink-3); }
.kicker .dot { margin-right: 2px; }
.kicker i, .card-people i { font-style: normal; color: #b9cbd3; margin: 0 2px; }
.sample-tag { margin-left: 4px; padding: 1px 7px; border-radius: 6px; background: #fdecc8; color: #7a4b00; font-size: 12px; }
.card-title { margin: 0 0 4px; font-size: 18px; font-weight: 700; line-height: 1.45; letter-spacing: -.2px; }
.card-title a:hover { color: var(--sea); text-decoration: underline; text-underline-offset: 3px; }
.card-people { margin: 0; font-size: 14px; color: var(--ink-2); }
.card-text { margin: 8px 0 0; font-size: 15px; color: #4a6270; line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
mark { background: var(--mark); color: inherit; padding: 0 2px; border-radius: 4px; }
.card-title mark { background: none; color: var(--sea); padding: 0; }
.card-foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; margin-top: 12px; }
.card-extra { display: flex; flex-wrap: wrap; gap: 6px; font-size: 12.5px; color: var(--ink-3); }
.card-extra span { padding: 2px 9px; border-radius: 999px; background: var(--mist); }
.card-acts { display: flex; gap: 6px; }
.pill { display: inline-flex; align-items: center; gap: 5px; padding: 6px 13px; border-radius: 999px; border: 1px solid var(--line); font-size: 13.5px; font-weight: 600; color: var(--ink-2); background: #fff; transition: all .15s; }
.pill:hover { border-color: var(--aqua); color: var(--sea-deep); }
.notice { display: flex; align-items: center; gap: 10px; padding: 16px 20px; border-radius: 16px; background: var(--mist); color: var(--ink-2); font-size: 15px; }
.notice a { margin-left: auto; display: inline-flex; align-items: center; gap: 4px; font-weight: 600; color: var(--sea); white-space: nowrap; }
.notice.warn { background: var(--warn-bg); color: var(--warn); }
.pager { display: flex; justify-content: center; flex-wrap: wrap; gap: 6px; margin-top: 26px; }
.pager a { min-width: 40px; height: 40px; padding: 0 12px; display: grid; place-items: center; border-radius: 999px; font-weight: 600; color: var(--ink-2); background: var(--mist); }
.pager a:hover { color: var(--sea); background: var(--foam); }
.pager a.on { background: var(--sea); color: #fff; }

/* ── 미리보기 창 ── */
.modal { position: fixed; inset: 0; z-index: 50; display: grid; place-items: center; padding: 24px; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(6, 36, 48, .45); backdrop-filter: blur(4px); animation: fade .15s; }
.modal-panel { position: relative; width: min(820px, 100%); max-height: calc(100vh - 48px); overflow: auto; background: #fff; border-radius: 22px; box-shadow: 0 30px 70px rgba(0, 0, 0, .22); padding: 30px 34px 28px; border-top: 5px solid var(--aqua); animation: rise .2s ease-out; }
.modal-x { position: sticky; top: 0; float: right; margin: -12px -14px 0 0; width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; color: var(--ink-3); background: #fff; }
.modal-x:hover { background: var(--mist); color: var(--ink); }
@keyframes fade { from { opacity: 0; } }
@keyframes rise { from { opacity: 0; transform: translateY(14px); } }
.pv-title { margin: 2px 0 6px; font-size: 23px; font-weight: 800; line-height: 1.4; letter-spacing: -.4px; }
.pv .card-extra { margin: 10px 0 0; }
.pv-sec { margin-top: 18px; padding: 14px 18px; border-radius: 14px; background: var(--mist); }
.pv-sec h3 { margin: 0 0 4px; font-size: 14.5px; font-weight: 800; color: var(--sea-deep); }
.pv-sec p { margin: 0; font-size: 15.5px; line-height: 1.8; color: #3a5361; white-space: pre-wrap; }
.pv-sec a { color: var(--sea); overflow-wrap: anywhere; }
.pv-keywords { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.pv-keywords span { font-size: 13.5px; padding: 3px 11px; border-radius: 999px; border: 1px solid var(--line); color: var(--ink-2); }
.pv-actions { margin-top: 22px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; border-radius: 999px; background: var(--water); color: #fff; font-weight: 700; }
.btn:hover { filter: brightness(1.06); }
.loading { padding: 40px 0; text-align: center; color: var(--ink-3); }

/* ── 바닥글, 맨 위로 ── */
.foot { background: var(--mist); border-top: 1px solid var(--line); color: var(--ink-3); font-size: 13px; padding: 13px 0 15px; }
.foot-in { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 16px; }
.foot-name { color: var(--ink-2); font-weight: 700; }
.foot-name small { margin-left: 6px; padding: 1px 8px; border-radius: 999px; background: var(--foam); color: var(--sea); font-size: 12px; }
.foot p { margin: 0; }
/* ── 바로 가기 줄(오른쪽): 본문(1160px)과 겹치지 않는 넓은 화면에서만. 좁으면 머리글 링크(.top-nav) ── */
.rail { position: fixed; right: 18px; top: 50%; transform: translateY(-50%); z-index: 14; display: none; flex-direction: column; align-items: center; gap: 4px; width: 78px; padding: 12px 6px 10px; border-radius: 22px; background: rgba(255, 255, 255, .9); backdrop-filter: blur(8px); border: 1px solid var(--line); box-shadow: var(--shadow); }
.rail::before { content: ""; position: absolute; top: 0; left: 22px; right: 22px; height: 3px; border-radius: 0 0 3px 3px; background: var(--water); }   /* 위쪽 물빛 줄 */
.rail-cap { margin: 0 0 4px; font-size: 11px; font-weight: 700; color: var(--ink-3); letter-spacing: .2px; }
.rail-item { --c: var(--sea); display: flex; flex-direction: column; align-items: center; gap: 5px; width: 100%; padding: 8px 2px; border-radius: 14px; font-size: 12.5px; font-weight: 700; color: var(--ink-2); text-align: center; line-height: 1.2; transition: background .15s, color .15s; }
.rail-ic { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 13px; background: color-mix(in srgb, var(--c) 13%, #fff); color: var(--c); transition: all .15s; }
a.rail-item:hover { background: var(--mist); color: var(--ink); }
a.rail-item:hover .rail-ic { background: var(--c); color: #fff; transform: translateY(-1px); }
.rail-item small { font-size: 10.5px; font-weight: 600; color: var(--ink-3); margin-top: -3px; }
.rail-item.off { color: var(--ink-3); cursor: default; }
.rail-item.off .rail-ic { background: var(--mist); color: #a9bcc5; }
.src-report { --c: var(--report); }
.src-paper { --c: var(--paper); }
.src-patent { --c: var(--patent); }
.src-rnd { --c: #5b6fd6; }
@media (min-width: 1320px) {
  .rail { display: flex; }
  .top-nav { display: none; }
}
.to-top { position: fixed; right: 22px; bottom: 22px; z-index: 15; width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center; color: #fff; background: var(--water); box-shadow: 0 8px 20px rgba(10, 126, 164, .3); opacity: 0; pointer-events: none; transform: translateY(8px); transition: all .2s; }
.to-top.show { opacity: 1; pointer-events: auto; transform: none; }

/* ── 좁은 화면 ── */
@media (max-width: 960px) {
  .layout { grid-template-columns: minmax(0, 1fr); gap: 18px; padding-top: 16px; }   /* 옆으로 넘기는 근거 자료 줄이 칸을 넓히지 않게 */
  .side { position: static; }
  .side-nav { flex-direction: row; overflow-x: auto; scrollbar-width: none; gap: 6px; }
  .side-nav::-webkit-scrollbar { display: none; }
  .side-title, .side-tip { display: none; }
  .side-item { flex: none; padding: 8px 14px; border-radius: 999px; background: var(--mist); }
  .side-item small { margin-left: 4px; }
  .top-nav { display: none; }
}
@media (max-width: 640px) {
  .wrap { padding: 0 16px; }
  .top-in { height: 56px; }
  .brand { gap: 11px; }
  .brand img { height: 32px; }
  .brand span { padding-left: 11px; font-size: 17px; }
  .lake { padding: 32px 0 84px; }
  .lake h1 { font-size: 30px; }
  .lake-sub { font-size: 15px; margin-bottom: 22px; }
  .ask-bar, .ask.big .ask-bar { height: 54px; padding-left: 14px; }
  .ask.big .ask-bar input, .ask-bar input { font-size: 16px; }
  .ask-go, .ask.big .ask-go { height: 42px; padding: 0 14px; }
  .ask-go span { display: none; }
  .ask-strip .ask { flex-direction: column; align-items: stretch; gap: 10px; }
  .ask-strip .ai-chip { align-self: flex-start; }
  .hints span { min-width: 0; width: 100%; }
  .bubble.me { max-width: 92%; }
  .avatar { display: none; }
  .bot-body { padding: 14px 16px 12px; border-radius: 18px; }
  .card { padding: 16px; }
  .notice { flex-wrap: wrap; }
  .notice a { margin-left: 0; }
  .modal { padding: 10px; }
  .modal-panel { padding: 24px 18px; }
}

/* ── 비밀번호 화면(주소로 열 때) ── */
.page-login { background: linear-gradient(180deg, #e2f4fa 0%, #f2fafd 60%, #fff 100%); min-height: 100vh; }
.login { display: grid; place-items: center; min-height: 100vh; padding: 24px 16px; }
.login-card { width: min(380px, 100%); padding: 30px 28px 26px; border-radius: 22px; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); }
.login-brand { display: flex; align-items: center; gap: 12px; margin: 0 0 22px; }
.login-brand img { height: 34px; width: auto; }
.login-brand span { padding-left: 12px; border-left: 1px solid var(--line); font-size: 18px; font-weight: 800; letter-spacing: -.4px; }
.login-card h1 { margin: 0; font-size: 21px; font-weight: 800; letter-spacing: -.4px; }
.login-sub { margin: 4px 0 18px; color: var(--ink-3); font-size: 14.5px; }
.login-field { display: grid; gap: 6px; font-size: 13.5px; font-weight: 700; color: var(--ink-2); }
.login-field input { height: 46px; padding: 0 14px; border-radius: 12px; border: 1.5px solid #bfe2ee; font: inherit; font-size: 16px; outline: 0; }
.login-field input:focus { border-color: var(--aqua); box-shadow: 0 0 0 4px rgba(34, 181, 211, .15); }
.login-error { margin: 10px 0 0; color: #b4232a; font-size: 14px; font-weight: 600; }
.login-card .btn { width: 100%; justify-content: center; margin-top: 18px; border: 0; cursor: pointer; font-size: 16px; }