/* AI 특화 공동훈련센터 — 공통 스타일
   색은 센터 로고 실측값(브랜드 토큰)만 쓴다. 상태색은 ok/warn/bad 셋뿐. */
:root{
  --ax:#2A93D1; --navy:#1D4078; --wash:#EDF5FB; --night:#0B162E;
  --r1:#D5E9F6; --r2:#A3CEEC; --r3:#5FAEE0;
  --ink:#13213A; --body:#4B5467; --muted:#6F7889; --slate:#9AA1AE;
  --paper:#fff; --mist:#F4F7FB; --line:#DDE4EC; --line-strong:#BCC7D4;
  --ok:#2E7D57; --warn:#C98216; --bad:#BE3B3B; --ok-w:#E8F4EE; --warn-w:#FDF3E3; --bad-w:#FBEBEB;
  --sans:'Pretendard Variable','Pretendard','Apple SD Gothic Neo','Malgun Gothic','맑은 고딕','Noto Sans KR',system-ui,sans-serif;
  --r:12px; --r-s:8px; --max:1160px;
  --sh:0 1px 2px rgba(19,33,58,.06),0 8px 24px rgba(19,33,58,.06);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--sans);background:var(--paper);color:var(--body);font-size:16px;line-height:1.7;letter-spacing:-.01em;word-break:keep-all;-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3,h4{color:var(--ink);letter-spacing:-.03em;line-height:1.3}
a{color:inherit}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2.5px solid var(--ax);outline-offset:2px;border-radius:4px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* ── 머리 ── */
.site-hd{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.94);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.site-hd .in{max-width:var(--max);margin:0 auto;padding:0 20px;height:64px;display:flex;align-items:center;gap:24px}
.site-hd .logo img{height:28px;width:auto}
.site-hd nav{display:flex;gap:4px;margin-left:auto}
.site-hd nav a{text-decoration:none;font-weight:600;font-size:15px;color:var(--ink);padding:8px 14px;border-radius:8px}
.site-hd nav a:hover{background:var(--mist)}
.site-hd nav a[aria-current]{color:var(--navy);background:var(--wash)}
.site-hd .tel{text-decoration:none;font-weight:700;font-size:14px;color:var(--navy);border:1px solid var(--r2);border-radius:999px;padding:7px 14px;white-space:nowrap}
.site-hd .menu{display:none;margin-left:auto;background:none;border:0;padding:8px;cursor:pointer}
.site-hd .menu i{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0;border-radius:2px}
.site-hd.dark{background:rgba(11,22,46,.55);border-bottom-color:rgba(255,255,255,.12)}
.site-hd.dark nav a{color:#fff}.site-hd.dark nav a:hover{background:rgba(255,255,255,.12)}
.site-hd.dark nav a[aria-current]{background:rgba(255,255,255,.16);color:#fff}
.site-hd.dark .tel{color:#fff;border-color:rgba(255,255,255,.4)}.site-hd.dark .menu i{background:#fff}
@media(max-width:760px){
  .site-hd .in{height:58px;gap:12px}
  .site-hd .logo img{height:24px}
  .site-hd .menu{display:block}
  .site-hd nav{display:none;position:absolute;left:0;right:0;top:58px;background:var(--paper);flex-direction:column;padding:10px 16px 16px;border-bottom:1px solid var(--line);box-shadow:var(--sh)}
  .site-hd nav a{color:var(--ink)!important;padding:12px}
  .site-hd.open nav{display:flex}
  .site-hd .tel{display:none}
}

/* ── 공통 블록 ── */
section{padding:84px 0}
.sec-mist{background:var(--mist)}
.sec-night{background:var(--night);color:#C9D3E3}
.sec-night h2,.sec-night h3{color:#fff}
.eyebrow{display:inline-block;font-size:13px;font-weight:800;letter-spacing:.06em;color:var(--navy);margin-bottom:12px}
.sec-night .eyebrow{color:#8FCBEF}
.sec-h{font-size:clamp(26px,3.6vw,38px);font-weight:800;margin-bottom:14px}
.sec-lead{font-size:17px;color:var(--muted);max-width:720px;margin-bottom:36px}
.sec-night .sec-lead{color:#A9B6CA}
@media(max-width:760px){section{padding:60px 0}.sec-lead{font-size:16px;margin-bottom:26px}}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;font-weight:700;font-size:16px;border-radius:10px;padding:14px 22px;border:1px solid transparent;cursor:pointer;transition:transform .15s,background .15s}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--navy);color:#fff}
.btn-primary:hover{background:#16335f}
.btn-line{background:var(--paper);color:var(--navy);border-color:var(--r2)}
.btn-ghost{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.35)}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}
.btns{display:flex;gap:10px;flex-wrap:wrap}

.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.card h3{font-size:19px;font-weight:800;margin-bottom:6px}
.tag{display:inline-block;font-size:12.5px;font-weight:700;border-radius:999px;padding:3px 10px;background:var(--wash);color:var(--navy)}
.tag.ok{background:var(--ok-w);color:var(--ok)}.tag.warn{background:var(--warn-w);color:var(--warn)}.tag.mute{background:var(--mist);color:var(--muted)}
.muted{color:var(--muted)}.small{font-size:14px}
.note{font-size:14px;color:var(--muted);margin-top:14px}
.tw{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-s);background:var(--paper)}
table{width:100%;border-collapse:collapse;font-size:15px}
th{background:var(--wash);color:var(--navy);font-weight:800;text-align:left;padding:12px 14px;border-bottom:2px solid var(--r2);white-space:nowrap}
td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
tbody tr:last-child td{border-bottom:0}

/* 숫자 */
.stats{display:flex;gap:40px;flex-wrap:wrap}
.stat b{display:block;font-size:clamp(30px,4vw,44px);font-weight:800;color:var(--navy);letter-spacing:-.03em;font-variant-numeric:tabular-nums;line-height:1.1}
.stat span{font-size:14px;color:var(--muted)}

/* ── 바닥 ── */
.site-ft{background:var(--night);color:#93A0B6;font-size:14px;padding:48px 0 40px}
.site-ft .in{max-width:var(--max);margin:0 auto;padding:0 20px;display:grid;grid-template-columns:1.3fr 1fr;gap:28px}
.site-ft img.lg{height:26px;margin-bottom:16px}
.site-ft .partners{height:22px;width:auto;opacity:.85;margin-top:18px}
.site-ft a{color:#C9D3E3}
.site-ft dl{display:grid;grid-template-columns:auto 1fr;gap:4px 16px}
.site-ft dt{color:#6E7C93}
.site-ft .bottom{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.1);padding-top:18px;display:flex;gap:16px;flex-wrap:wrap;justify-content:space-between}
@media(max-width:760px){.site-ft .in{grid-template-columns:1fr}}

/* ── 폼 ── */
.form-page{background:var(--mist);min-height:70vh;padding:48px 0 80px}
.form-page .head{max-width:820px;margin:0 auto 28px;padding:0 20px}
.form-page h1{font-size:clamp(28px,4vw,38px);font-weight:800;margin-bottom:8px}
.fcard{max-width:820px;margin:0 auto 18px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:28px}
.fcard h2{font-size:19px;font-weight:800;margin-bottom:4px;display:flex;align-items:center;gap:10px}
.fcard h2 .no{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--navy);color:#fff;font-size:14px}
.fcard .cap{font-size:14.5px;color:var(--muted);margin-bottom:18px}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:14px 16px}
.fields .full{grid-column:1/-1}
@media(max-width:600px){.fields{grid-template-columns:1fr}.fcard{padding:22px 18px}}
label.f{display:block;font-size:14px;font-weight:700;color:var(--ink)}
label.f .req{color:var(--bad);margin-left:2px}
label.f .opt{color:var(--slate);font-weight:500;margin-left:4px}
.inp,select.inp,textarea.inp{display:block;width:100%;margin-top:6px;border:1px solid var(--line-strong);border-radius:8px;padding:11px 12px;background:#fff;font-size:16px}
.inp:focus{border-color:var(--ax);outline:none;box-shadow:0 0 0 3px rgba(42,147,209,.18)}
.inp.err{border-color:var(--bad)}
.hint{font-size:13px;color:var(--muted);margin-top:5px}
.check{display:flex;gap:10px;align-items:flex-start;font-size:15px;margin-top:10px;cursor:pointer}
.check input{width:20px;height:20px;margin-top:3px;accent-color:var(--navy);flex:none}
.consent{max-height:260px;overflow:auto;border:1px solid var(--line);border-radius:8px;padding:14px 16px;background:var(--mist);font-size:14px;line-height:1.7}
.consent h3{font-size:15px;margin:10px 0 4px}.consent ol{padding-left:20px}
.msg{border-radius:8px;padding:12px 14px;font-size:15px;margin-top:12px}
.msg.ok{background:var(--ok-w);color:var(--ok)}.msg.warn{background:var(--warn-w);color:#8a5a0f}.msg.bad{background:var(--bad-w);color:var(--bad)}
.pick{display:grid;gap:10px}
.pick label{display:flex;gap:12px;align-items:flex-start;border:1px solid var(--line);border-radius:10px;padding:14px 16px;cursor:pointer;background:#fff}
.pick label:hover{border-color:var(--r2)}
.pick input{margin-top:5px;accent-color:var(--navy);width:18px;height:18px;flex:none}
.pick input:checked+div{color:var(--ink)}
.pick label:has(input:checked){border-color:var(--navy);box-shadow:0 0 0 2px rgba(29,64,120,.15)}
.pick .t{font-weight:800;color:var(--ink)}
.pick .s{font-size:14px;color:var(--muted)}
.people{display:grid;gap:10px}
.person{display:grid;grid-template-columns:34px 1fr 1.3fr 1fr 1.3fr 34px;gap:8px;align-items:end}
.person .n{font-weight:800;color:var(--navy);padding-bottom:12px;text-align:center}
.person .rm{background:none;border:0;color:var(--slate);font-size:22px;cursor:pointer;padding-bottom:8px}
@media(max-width:700px){.person{grid-template-columns:1fr 1fr;background:var(--mist);border-radius:10px;padding:12px}.person .n{grid-column:1/-1;text-align:left;padding:0}.person .rm{grid-column:1/-1;text-align:right;padding:0}}
.drop{border:2px dashed var(--line-strong);border-radius:10px;padding:22px;text-align:center;background:var(--mist);cursor:pointer}
.drop.has{border-style:solid;border-color:var(--ok);background:var(--ok-w)}
.done-box{max-width:820px;margin:0 auto;padding:0 20px}
.done-box .fcard{text-align:left}
.hp{position:absolute;left:-9999px}