/* 공공기관용 «메인 화면 AI 상담» 샘플 — 공통 스타일
   외부 글꼴·CDN 을 쓰지 않는다(시스템 한글 글꼴). 색은 GOVS 랜딩과 같은 관청 남색. */
:root{
  --namcheong:#10345c; --namcheong-deep:#0b1e33; --ink:#16202b; --muted:#566577; --line:#d6dee8;
  --paper:#fff; --tint:#eef3f9; --chat-bg:#f1f5fa; --seal:#d4432a; --sky:#2f6fd8; --danger:#b42318;
  --font-sans:"Pretendard","Apple SD Gothic Neo","Malgun Gothic","Noto Sans KR",system-ui,sans-serif;
  --font-mono:"D2Coding","SFMono-Regular",Consolas,"Liberation Mono",monospace;
}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:var(--font-sans);color:var(--ink);background:var(--paper);line-height:1.65;-webkit-font-smoothing:antialiased;word-break:keep-all}
a{color:inherit}
button{font:inherit}
[hidden]{display:none !important}
.wrap{max-width:1160px;margin:0 auto;padding:0 16px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:8px;top:-48px;background:var(--namcheong);color:#fff;padding:8px 14px;border-radius:6px;z-index:2000}
.skip:focus{top:8px}
:focus-visible{outline:3px solid var(--sky);outline-offset:2px}

/* 샘플 안내 띠 — 공공기관용·가상 기관임을 늘 보이게 */
.demo-bar{background:var(--namcheong-deep);color:#e6edf6;font-size:13px}
.demo-bar .wrap{display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap;padding-top:8px;padding-bottom:8px}
.demo-bar .tag{display:inline-block;background:var(--seal);color:#fff;font-weight:700;border-radius:4px;padding:1px 8px;margin-right:6px}
.demo-bar nav{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.demo-bar nav a{color:#e6edf6;text-decoration:none;border:1px solid rgba(230,237,246,.4);border-radius:999px;padding:2px 10px;white-space:nowrap}
.demo-bar nav a[aria-current="page"]{background:#fff;color:var(--namcheong-deep);border-color:#fff;font-weight:700}
.demo-bar nav a.plain{border:0;text-decoration:underline;text-underline-offset:3px;padding:2px 4px}

/* 기관 헤더(예시) */
.gov-head{background:var(--paper);border-bottom:1px solid var(--line)}
.gov-head .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.gov-logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.gov-logo .mark{width:34px;height:34px;border-radius:8px;background:var(--namcheong);color:#fff;display:grid;place-items:center;font-weight:800}
.gov-logo b{display:block;font-size:19px;color:var(--namcheong-deep);line-height:1.2}
.gov-logo small{display:block;font-size:11px;color:var(--muted);letter-spacing:.06em}
.gov-nav{display:flex;gap:22px;font-size:15px;font-weight:700;color:var(--ink)}
.gov-nav span{opacity:.85}

/* 메인 화면 */
.hero{background:linear-gradient(135deg,#123d6b 0%,var(--namcheong) 45%,#0b4f7a 100%);color:#fff;padding:60px 0 54px}
.hero h1{margin:0 0 8px;font-size:clamp(26px,4.2vw,38px);font-weight:800;letter-spacing:-.02em}
.hero .sub{margin:0 0 24px;color:#d4e0ee}
.ask{display:flex;align-items:center;gap:10px;background:#fff;border-radius:14px;padding:10px 10px 10px 20px;box-shadow:0 10px 28px rgba(0,0,0,.22);max-width:980px}
.ask textarea{flex:1;border:0;outline:0;resize:none;font:inherit;font-size:17px;color:var(--ink);min-height:30px;max-height:140px;padding:6px 0;background:transparent}
.ask textarea::placeholder,.bar input::placeholder{color:#7b8898}
.ask .go{flex:none;border:0;cursor:pointer;background:var(--namcheong);color:#fff;font-weight:800;border-radius:10px;padding:12px 22px}
.ask .go:hover{background:var(--namcheong-deep)}
.ask .go:disabled,.send:disabled{background:#8a97a8;cursor:default}
.privacy{margin:10px 0 0;font-size:13px;color:#d4e0ee}
.privacy b{color:#fff}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;align-items:center}
.chips .lbl{font-size:13px;color:#c9d6e6;margin-right:4px}
.chips button{cursor:pointer;font-size:14px;color:#fff;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.5);border-radius:999px;padding:7px 14px}
.chips button:hover{background:rgba(255,255,255,.18)}
.setup{margin-top:16px;background:#fff4e5;color:#7a3e00;border-radius:10px;padding:12px 16px;font-size:14px;max-width:980px}
.setup code{font-family:var(--font-mono)}

section{padding:56px 0}
h2{font-size:clamp(22px,3vw,28px);margin:0 0 8px;letter-spacing:-.02em;color:var(--namcheong-deep)}
.lede{color:var(--muted);margin:0 0 26px}
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.flow div{background:var(--paper);border:1px solid var(--line);border-top:3px solid var(--namcheong);border-radius:10px;padding:20px}
.flow b{display:block;font-size:13px;color:var(--namcheong);margin-bottom:6px}
.flow p{margin:0}
.howto{background:var(--tint)}
.step{margin-top:28px}
.step h3{font-size:18px;margin:0 0 6px;color:var(--namcheong-deep)}
.step p{margin:0 0 10px;color:var(--muted)}
.code{position:relative}
.code pre{margin:0;background:#0b1e33;color:#e6edf6;border-radius:10px;padding:16px 18px;overflow-x:auto;font:13px/1.65 var(--font-mono)}
.code button{position:absolute;top:10px;right:10px;font-size:12px;cursor:pointer;background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.3);border-radius:8px;padding:4px 10px}
.notes{margin:28px 0 0;padding:18px 20px;border-radius:10px;background:var(--paper);border:1px solid var(--line)}
.notes ul{margin:0;padding-left:18px}
.notes li+li{margin-top:6px}
code.inline{font-family:var(--font-mono);font-size:.92em;background:#dfe7f1;border-radius:4px;padding:1px 5px}
.gov-foot{background:#1b2633;color:#b9c4d2;font-size:13px;padding:24px 0 36px}
.gov-foot strong{color:#fff}

/* 대화 말풍선 (두 방식 공통) */
.msgs{display:flex;flex-direction:column;gap:16px}
.q{align-self:flex-end;max-width:min(560px,85%);background:var(--namcheong);color:#fff;border-radius:16px 16px 4px 16px;padding:10px 16px;white-space:pre-wrap;word-break:break-word}
.a{align-self:flex-start;max-width:min(780px,100%);background:#fff;border:1px solid var(--line);border-radius:4px 16px 16px 16px;padding:16px 20px}
.a .who{display:flex;align-items:center;gap:6px;font-size:13px;font-weight:700;color:var(--namcheong);margin-bottom:6px}
.a .who i{width:18px;height:18px;border-radius:5px;background:var(--namcheong);display:inline-block}
.a .body{word-break:break-word}
.a .body p{margin:0 0 .6em}
.a .body p:last-child{margin-bottom:0}
.a .body ul,.a .body ol{margin:.2em 0 .7em;padding-left:1.3em}
.a .body a{color:var(--sky)}
.a .body code{font-family:var(--font-mono);background:var(--tint);border-radius:4px;padding:0 4px}
.a .foot{margin:10px 0 0;font-size:12px;color:#7b8898}
.a .status{color:var(--muted);font-size:14px;display:flex;align-items:center;gap:8px}
.dots{display:inline-flex;gap:4px}
.dots i{width:6px;height:6px;border-radius:50%;background:var(--namcheong);animation:blink 1.2s infinite both}
.dots i:nth-child(2){animation-delay:.2s}.dots i:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,80%,100%{opacity:.25}40%{opacity:1}}
@media (prefers-reduced-motion:reduce){.dots i{animation:none;opacity:.6}}
.a.err .body{color:var(--danger)}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px;margin-top:12px}
.cards a{display:block;text-decoration:none;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff}
.cards img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--tint)}
.cards span{display:block;padding:8px 10px;font-size:13px}
.cards em{display:block;padding:0 10px 8px;font-style:normal;font-size:13px;font-weight:700;color:var(--namcheong)}
.bar form{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:6px 6px 6px 16px}
.bar input{flex:1;border:0;outline:0;font:inherit;font-size:16px;min-width:0;background:transparent}
.send{flex:none;border:0;cursor:pointer;background:var(--namcheong);color:#fff;font-weight:800;border-radius:8px;padding:10px 18px}
.send:hover{background:var(--namcheong-deep)}
.bar small{display:block;text-align:center;color:var(--muted);font-size:12px;margin-top:8px}
.reco-inline{display:flex;flex-wrap:wrap;gap:8px;margin-top:-4px}
.reco-inline b{width:100%;font-size:12px;color:var(--muted)}
.reco-inline button,.reco button{cursor:pointer;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 12px;font-size:14px;color:var(--ink);text-align:left}
.reco-inline button:hover,.reco button:hover{border-color:var(--namcheong);color:var(--namcheong)}

/* 페이지 전환 방식 — 대화 화면 */
.chat{display:grid;grid-template-columns:240px minmax(0,1fr) 300px;height:calc(100vh - var(--chrome,104px));background:var(--chat-bg)}
.side{background:var(--namcheong-deep);color:#e6edf6;padding:22px 16px;display:flex;flex-direction:column;gap:14px;overflow:auto}
.side h2{font-size:17px;margin:0;color:#fff}
.side .new{display:flex;align-items:center;gap:8px;width:100%;cursor:pointer;color:#fff;font-weight:700;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.25);border-radius:10px;padding:10px 12px}
.side h3{font-size:12px;color:rgba(230,237,246,.65);margin:8px 0 0}
.side ol{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.side ol button{width:100%;text-align:left;background:none;border:0;color:#e6edf6;cursor:pointer;padding:7px 8px;border-radius:8px;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.side ol button:hover{background:rgba(255,255,255,.08)}
.side .hist{grid-template-columns:minmax(0,1fr)}
.hist li{display:flex;align-items:center;gap:2px;border-radius:8px;min-width:0}
.hist li.on{background:rgba(255,255,255,.12)}
.side .hist li button:first-child{flex:1;min-width:0;width:auto}
.side .hist .del{flex:none;width:28px;height:28px;padding:0;text-align:center;color:rgba(230,237,246,.55);font-size:12px}
.side .hist .del:hover{color:#fff}
.side .histbtn{display:none}
.side .home{margin-top:auto;color:rgba(230,237,246,.8);font-size:14px;background:none;border:0;cursor:pointer;text-align:left;padding:6px 0}
.conv{display:flex;flex-direction:column;min-height:0}
.chat .msgs{flex:1;overflow:auto;padding:26px clamp(16px,4vw,48px) 12px}
.chat .bar{padding:12px clamp(16px,4vw,48px) 18px}
.chat .bar form{max-width:860px;margin:0 auto}
.reco{background:#fff;margin:16px 16px 16px 0;border-radius:12px;border:1px solid var(--line);padding:20px;overflow:auto}
.reco h2{font-size:17px;margin:0 0 12px}
.reco ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.reco button{width:100%;border-radius:10px;padding:10px 12px}
.reco .empty{color:var(--muted);font-size:14px}
.reco .note{margin:18px 0 0;padding-top:14px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}

/* 레이어 방식 */
.layer{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;padding:24px}
.layer .scrim{position:absolute;inset:0;background:rgba(11,30,51,.5);-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}
.panel{position:relative;width:min(820px,100%);height:min(760px,calc(100vh - 48px));display:flex;flex-direction:column;background:#fff;border-radius:16px;box-shadow:0 24px 64px rgba(0,0,0,.3);overflow:hidden}
.panel header{display:flex;align-items:center;gap:12px;padding:14px 16px 14px 20px;border-bottom:1px solid var(--line)}
.panel .badge{flex:none;background:var(--namcheong);color:#fff;font-weight:800;font-size:13px;border-radius:6px;padding:6px 10px}
.panel header h2{font-size:17px;margin:0;line-height:1.3}
.panel header p{margin:0;font-size:12px;color:var(--muted)}
.panel header .tools{margin-left:auto;display:flex;gap:6px}
.icon-btn{display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 10px;border-radius:8px;border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;font-size:13px}
.icon-btn:hover{background:var(--tint)}
.panel .msgs{flex:1;overflow:auto;padding:20px 24px;background:var(--chat-bg)}
.panel .bar{padding:12px 16px 14px;border-top:1px solid var(--line)}
body.layer-open{overflow:hidden}
.resume{position:fixed;right:24px;bottom:24px;z-index:900;border:0;cursor:pointer;background:var(--namcheong);color:#fff;font-weight:800;border-radius:999px;padding:13px 22px;box-shadow:0 12px 30px -10px rgba(0,0,0,.45)}
.resume:hover{background:var(--namcheong-deep)}
.resume[hidden]{display:none}

@media (max-width:960px){
  .chat{grid-template-columns:minmax(0,1fr);grid-template-rows:auto minmax(0,1fr) auto;height:auto;min-height:calc(100vh - var(--chrome,104px))}
  .side{flex-direction:row;align-items:center;flex-wrap:wrap;padding:10px 16px;gap:8px}
  .side h2{font-size:15px;flex:1}
  .side .new{width:auto;padding:6px 12px;font-size:14px}
  .side h3,.side ol{display:none}
  .side .histbtn{display:inline-flex;align-items:center;color:#e6edf6;background:none;border:1px solid rgba(255,255,255,.25);border-radius:8px;padding:6px 10px;font-size:13px;cursor:pointer}
  .side.hist-open ol{display:grid;width:100%;order:9;max-height:40vh;overflow:auto}
  .side .home{margin:0;font-size:13px}
  .chat .msgs{overflow:visible}
  .chat .bar{position:sticky;bottom:0;background:linear-gradient(transparent,var(--chat-bg) 30%)}
  .reco{margin:0 16px 16px}
}
@media (max-width:720px){
  .gov-nav{display:none}
  .hero{padding:40px 0 36px}
  .ask{flex-wrap:wrap;padding:10px 12px}
  .ask textarea{font-size:16px;width:100%}
  .ask .go{width:100%}
  .flow{grid-template-columns:1fr}
  section{padding:40px 0}
  .layer{padding:0}
  .panel{width:100%;height:100%;border-radius:0}
  .panel header p{display:none}
  .icon-btn .lbl{display:none}
  .panel .msgs{padding:16px}
}