/* ============================================================
   Gangseo EN · v3 subpage system — shares the main page's
   design language (Inter + Newsreader accent, purple on white)
   ============================================================ */
:root{
  --ink:#151318; --sub:#6b6672; --faint:#9a95a3; --line:#e9e6ee; --line-2:#f0edf4;
  --paper:#fff; --wash:#f5f3f8; --cream:#f7f4f0; --dark:#161019; --dark-2:#221a2b;
  --brand:#5B2483; --brand-dk:#3A1355; --brand-lt:#8A5AAE; --gold:#B08A45; --lime:#B4F117;
  --sans:"Inter","Pretendard",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --serif:"Newsreader","Iowan Old Style","Times New Roman",serif;
  --rail:90%; --content:min(90%,1160px); --sec:clamp(64px,7.5vw,112px);
}
*{margin:0;padding:0;box-sizing:border-box;min-width:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
html,body{max-width:100%;overflow-x:clip}
body{font-family:var(--sans);background:var(--paper);color:var(--ink);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
::selection{background:var(--brand);color:#fff}
.rail{width:var(--rail);margin-inline:auto}
.content{width:var(--content);margin-inline:auto}

/* type */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:11.5px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--brand)}
.eyebrow.rule::before{content:"";width:26px;height:1px;background:currentColor;opacity:.55}
.h-sec{font-size:clamp(26px,3.6vw,44px);font-weight:800;letter-spacing:-.03em;line-height:1.1;margin:0}
.lede{font-size:clamp(15px,1.2vw,17.5px);color:var(--sub);line-height:1.75;max-width:62ch}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 24px;border-radius:999px;font-size:14px;font-weight:700;transition:.22s;white-space:nowrap}
.btn.fill{background:var(--brand);color:#fff}
.btn.fill:hover{background:var(--brand-dk)}
.btn.line{background:#fff;border:1.5px solid var(--line);color:var(--ink)}
.btn.line:hover{border-color:var(--brand);color:var(--brand)}
.tlink{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:700;color:var(--ink);border-bottom:1.5px solid var(--brand);padding-bottom:3px;transition:.22s}
.tlink::after{content:"→";transition:transform .22s}
.tlink:hover{color:var(--brand)}

/* header (same as main) */
.hdr{position:sticky;top:0;z-index:70;background:rgba(255,255,255,.92);backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line-2)}
.hdr .rail{display:flex;align-items:center;justify-content:space-between;height:76px;gap:22px}
.hdr .lg img{height:46px;width:auto}
.hdr nav{display:flex;gap:clamp(16px,2.2vw,34px);font-size:14.5px;font-weight:600;color:#2c2830}
.hdr nav a{position:relative;padding:6px 0}
.hdr nav a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--brand);transition:right .25s}
.hdr nav a:hover{color:var(--brand)}
.hdr nav a:hover::after{right:0}
.hdr nav a[aria-current="page"]{color:var(--brand)}
.hdr nav a[aria-current="page"]::after{right:0}
.hdr .end{display:flex;align-items:center;gap:14px}
.hdr .globe{width:22px;height:22px;color:var(--faint)}
.hdr .globe:hover{color:var(--brand)}

/* page hero */
.phero{background:var(--wash);border-bottom:1px solid var(--line-2);padding:clamp(52px,6.5vw,92px) 0 clamp(40px,5vw,64px)}
.phero .crumb{font-size:12.5px;color:var(--faint);margin-bottom:18px}
.phero .crumb a:hover{color:var(--brand)}
.phero h1{font-size:clamp(32px,4.6vw,58px);font-weight:800;letter-spacing:-.035em;line-height:1.06;max-width:22ch}
.phero h1 em{font-family:var(--serif);font-style:italic;font-weight:400;color:var(--brand)}
.phero .lede{margin-top:18px}
.phero .anchors{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
.phero .anchors a{font-size:12.5px;font-weight:700;padding:9px 16px;border-radius:999px;border:1px solid var(--line);background:#fff;transition:.2s}
.phero .anchors a:hover{border-color:var(--brand);color:var(--brand)}

/* sections */
.sec{padding:var(--sec) 0;border-bottom:1px solid var(--line-2)}
.sec:last-of-type{border-bottom:0}
.sec .head{max-width:720px;margin-bottom:clamp(30px,3.5vw,48px)}
.sec .head .h-sec{margin-top:14px}
.sec .head p{margin-top:14px;color:var(--sub);font-size:15px;line-height:1.7}
.prose{max-width:70ch;color:#3a343f;font-size:15.5px;line-height:1.8}
.prose p+p{margin-top:16px}
.prose strong{color:var(--ink)}

/* data tables */
.tblwrap{overflow-x:auto}
.tbl{width:100%;border-collapse:collapse;font-size:14px;min-width:560px;border:1px solid var(--line)}
.tbl th{background:var(--wash);text-align:left;font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--sub);padding:12px 16px;border-bottom:1px solid var(--line);border-right:1px solid var(--line)}
.tbl td{padding:13px 16px;border-bottom:1px solid var(--line);border-right:1px solid var(--line);vertical-align:top;line-height:1.6}
.tbl td b{font-weight:700}
.tbl .grp{font-weight:700;color:var(--brand);white-space:nowrap}
.tbl .num{font-variant-numeric:tabular-nums;white-space:nowrap;color:var(--sub)}

/* definition rows */
.defs{border-top:1px solid var(--line)}
.defs>div{display:grid;grid-template-columns:minmax(140px,220px) 1fr;gap:18px;padding:16px 0;border-bottom:1px solid var(--line-2)}
.defs dt{font-size:13px;font-weight:700;color:var(--ink);padding-top:2px}
.defs dd{font-size:14.5px;color:var(--sub);line-height:1.7}

/* cards */
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(18px,2vw,28px)}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(18px,2vw,28px)}
.pcard{border:1px solid var(--line);border-radius:16px;padding:26px 26px 24px;background:#fff;transition:box-shadow .25s,border-color .25s}
.pcard:hover{border-color:var(--brand-lt);box-shadow:0 18px 40px -32px rgba(30,16,50,.4)}
.pcard .kick{font-size:10.5px;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--brand)}
.pcard h3{font-size:18px;font-weight:700;letter-spacing:-.015em;margin:8px 0 10px;line-height:1.35}
.pcard p{font-size:14px;color:var(--sub);line-height:1.7}
.pcard .note{margin-top:12px;font-size:12.5px;color:var(--faint)}

/* timeline */
.tline{border-left:2px solid var(--line);margin-left:8px;padding-left:28px;display:flex;flex-direction:column;gap:26px}
.tline>div{position:relative}
.tline>div::before{content:"";position:absolute;left:-35px;top:6px;width:12px;height:12px;border-radius:50%;background:#fff;border:3px solid var(--brand)}
.tline b{display:block;font-size:15px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums}
.tline p{font-size:14.5px;color:#3a343f;margin-top:4px;line-height:1.65}

/* quote / verse */
.verse{border-left:3px solid var(--brand);padding:6px 0 6px 22px;max-width:60ch}
.verse p{font-family:var(--serif);font-style:italic;font-size:clamp(17px,1.6vw,21px);line-height:1.6;color:#3a343f}
.verse cite{display:block;margin-top:12px;font-style:normal;font-size:11.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--faint)}

/* dark band */
.band{background:var(--dark);color:#c9bfd6;border-radius:20px;padding:clamp(30px,3.6vw,52px)}
.band h3{color:#fff;font-size:clamp(20px,2.2vw,28px);font-weight:800;letter-spacing:-.02em}
.band p{font-size:14.5px;line-height:1.75;margin-top:12px}
.band .btn{margin-top:22px}

/* footer — 메인과 동일한 벤토 풋터 */
.bento-foot{background:transparent;padding:clamp(28px,3.5vw,52px) 0 clamp(30px,4vw,52px)}
.bento-foot .rail{width:90%;max-width:none;background:var(--dark);border-radius:28px;padding:clamp(40px,5vw,64px) clamp(26px,3.5vw,52px)}
/* 스크롤 시 다크 배경이 화면 전체 폭으로 확장 + 하단 여백까지 채움.
   .rail 은 폭이 90% 로 명시돼 있어 음수 마진으로는 늘지 않고 위치만 밀린다.
   따라서 폭 자체를 90%→100% 로 전환한다(margin-inline:auto 유지 → 좌우 대칭). */
.bento-foot .rail{will-change:width,border-radius;
  transition:width .52s cubic-bezier(.22,.8,.24,1),border-radius .52s cubic-bezier(.22,.8,.24,1)}
.bento-foot{transition:padding-bottom .52s cubic-bezier(.22,.8,.24,1)}
.bento-foot.wide{padding-bottom:0}
.bento-foot.wide .rail{width:100%;border-radius:0}
@media(prefers-reduced-motion:reduce){.bento-foot,.bento-foot .rail{transition:none}}

/* ── 우측 하단 TOP 버튼 (스크롤 시 노출) ── */
.totop{position:fixed;right:clamp(16px,2.2vw,30px);bottom:clamp(16px,2.2vw,30px);z-index:90;
  width:52px;height:52px;border-radius:50%;display:grid;place-items:center;
  background:var(--brand);color:#fff;cursor:pointer;
  border:0;padding:0;appearance:none;-webkit-appearance:none;/* 브라우저 기본 버튼 테두리 제거 */
  box-shadow:0 14px 30px -12px rgba(40,16,60,.65);
  opacity:0;visibility:hidden;transform:translateY(12px) scale(.9);
  transition:opacity .3s cubic-bezier(.22,.8,.24,1),transform .3s cubic-bezier(.22,.8,.24,1),
             visibility .3s,background .2s}
.totop.show{opacity:1;visibility:visible;transform:none}
.totop:hover{background:var(--brand-dk)}
.totop:focus-visible{outline:2px solid var(--brand-lt);outline-offset:3px}
.totop svg{width:20px;height:20px;display:block}
@media(prefers-reduced-motion:reduce){.totop{transition:none}}
@media(max-width:720px){.totop{width:46px;height:46px}}
.bfoot-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:minmax(150px,auto);gap:16px}
.bf-box{border-radius:20px;background:var(--dark-2);padding:30px 28px;display:flex;flex-direction:column}
.bf-brand{grid-column:1/3;grid-row:1/3;justify-content:space-between}
.bf-brand .say{font-family:var(--serif);font-weight:400;font-style:italic;font-size:clamp(38px,4.6vw,62px);line-height:1;color:#fff;margin:0}
.bf-brand img{height:28px;filter:brightness(0) invert(1);opacity:.9;margin:26px 0 14px}
.bf-brand address{font-style:normal;font-size:13px;line-height:1.85;color:#a99cbb}
.bf-box h5{font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin:0 0 16px}
.bf-box ul{list-style:none;display:flex;flex-direction:column;gap:11px;font-size:14px}
.bf-box ul a{color:#c1b5d1}.bf-box ul a:hover{color:#fff}
.bf-cta{background:var(--brand);justify-content:space-between}
.bf-cta p{font-family:var(--serif);font-style:italic;font-size:18px;color:#efe6fb;line-height:1.5;margin:0 0 18px}
.bf-cta .btn{align-self:flex-start;background:#fff;color:var(--brand)}
.bf-cta .btn:hover{background:var(--lime);color:var(--ink)}
.bfoot-btm{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:26px;font-size:12.5px;color:#8d80a0}
.bfoot-btm .soc{display:flex;gap:16px}
.bfoot-btm a:hover{color:#fff}
@media(max-width:820px){
  .bfoot-grid{grid-template-columns:repeat(2,1fr)}
  .bf-brand{grid-column:1/3;grid-row:auto}
  .bf-cta{grid-column:1/3}
}

/* reveal */
.rv{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}

/* responsive */
@media(max-width:1080px){.hdr nav{display:none}}
@media(max-width:900px){
  .grid3{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .grid2,.grid3{grid-template-columns:1fr}
  .defs>div{grid-template-columns:1fr;gap:6px;padding:14px 0}
}

/* nav dropdowns */
.hdr nav .dd{position:relative;display:inline-flex}
.hdr nav .dd>a{display:inline-flex;align-items:center;gap:6px}
.hdr nav .dd>a i{display:inline-flex;align-items:center;color:var(--faint);transition:transform .2s,color .2s}
.hdr nav .dd>a i svg{width:15px;height:15px;display:block}
.hdr nav .dd:hover>a i{transform:rotate(180deg);color:var(--brand)}
.dmenu{position:absolute;top:100%;left:50%;padding-top:9px;min-width:172px;
  opacity:0;visibility:hidden;transform:translate(-50%,-6px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s;z-index:80}
.dmenu .in{background:#fff;border:1px solid var(--line);border-radius:14px;padding:6px;
  display:flex;flex-direction:column;gap:2px;
  box-shadow:0 20px 44px -20px rgba(30,16,50,.5)}
.hdr nav .dd:hover .dmenu,.hdr nav .dd:focus-within .dmenu{opacity:1;visibility:visible;transform:translate(-50%,0)}
.hdr nav .dmenu a{display:flex;align-items:center;gap:8px;padding:9px 22px;border-radius:9px;
  font-size:13px;font-weight:600;color:var(--ink);white-space:nowrap}
.hdr nav .dmenu a:hover{background:var(--wash);color:var(--brand)}
.hdr nav .dmenu a::after{display:none}

/* dept index rows + tab pills */
.deptrow{display:grid;grid-template-columns:minmax(0,1.2fr) auto;gap:14px;align-items:center;
  padding:16px 0;border-bottom:1px solid var(--line-2)}
.deptrow .nm{font-size:16.5px;font-weight:700;letter-spacing:-.015em}
.deptrow .nm span{display:block;font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin-top:2px}
.deptlinks{display:flex;gap:8px;flex-wrap:wrap}
.deptlinks a,.deptlinks span{font-size:12px;font-weight:700;padding:8px 14px;border-radius:999px;border:1px solid var(--line);transition:.2s;white-space:nowrap}
.deptlinks a:hover{border-color:var(--brand);color:var(--brand)}
.deptlinks .soon{opacity:.4;cursor:default}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-top:26px}
.tabs a{font-size:13px;font-weight:700;padding:11px 20px;border-radius:999px;border:1px solid var(--line);background:#fff;transition:.2s}
.tabs a:hover{border-color:var(--brand);color:var(--brand)}
.tabs a.on{background:var(--brand);border-color:var(--brand);color:#fff}

/* photo grids */
.phgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px}
.phgrid img{border-radius:12px;aspect-ratio:4/3;object-fit:cover;width:100%}
.phgrid figure{margin:0}
.phgrid figcaption{font-size:12px;color:var(--faint);margin-top:6px}
@media(max-width:760px){.phgrid{grid-template-columns:1fr 1fr}}

/* faculty cards */
.fac{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(14px,1.8vw,22px)}
.fac .pcard h3{margin-bottom:2px}
.fac .role{font-size:12.5px;color:var(--brand);font-weight:700}
.fac .mail{font-size:12.5px;color:var(--faint);margin-top:2px;word-break:break-all}
.fac ul{margin:10px 0 0;padding-left:16px;font-size:13px;color:var(--sub);line-height:1.65}
@media(max-width:720px){.fac{grid-template-columns:1fr}}

@media(max-width:640px){.deptrow{grid-template-columns:1fr}}
.tabs .soon{font-size:13px;font-weight:700;padding:11px 20px;border-radius:999px;border:1px solid var(--line);background:#fff;opacity:.45;cursor:default}

/* ── 모바일 메뉴 (햄버거) ── */
.burger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:999px;place-items:center;
  background:none;cursor:pointer;color:var(--ink);padding:0;appearance:none;-webkit-appearance:none}
.burger svg{width:18px;height:13px}
.mnav{position:fixed;inset:0;z-index:120;background:var(--paper);display:flex;flex-direction:column;
  padding:0 clamp(20px,5vw,34px) calc(26px + env(safe-area-inset-bottom));overflow-y:auto;
  opacity:0;transform:translateY(-8px);transition:opacity .26s cubic-bezier(.22,.8,.24,1),transform .26s cubic-bezier(.22,.8,.24,1)}
.mnav[hidden]{display:none}
.mnav.open{opacity:1;transform:none}
.mnav-top{display:flex;align-items:center;justify-content:space-between;height:76px;flex:0 0 auto}
.mnav-top .lg img{height:40px;width:auto;display:block}
.mclose{width:44px;height:44px;border:1px solid var(--line);border-radius:999px;display:grid;place-items:center;
  background:none;cursor:pointer;color:var(--ink);padding:0;appearance:none;-webkit-appearance:none}
.mclose svg{width:18px;height:18px;display:block}
.mlist{display:flex;flex-direction:column;padding:10px 0 6px;flex:1 1 auto}
.mlist>a{font-size:clamp(24px,7vw,30px);font-weight:800;letter-spacing:-.03em;padding:14px 0;border-bottom:1px solid var(--line-2)}
.mgrp{padding:14px 0 16px;border-bottom:1px solid var(--line-2)}
.mgrp>span{display:block;font-size:clamp(24px,7vw,30px);font-weight:800;letter-spacing:-.03em}
.mgrp>a{display:block;font-size:15px;font-weight:600;color:var(--sub);padding:10px 0 0 2px}
.mgrp>a::before{content:"—";margin-right:10px;color:var(--faint)}
.mlist>a:active,.mgrp>a:active{color:var(--brand)}
.mnav-btm{display:flex;flex-direction:column;gap:16px;padding-top:24px;flex:0 0 auto}
.mnav-btm .btn{width:100%;padding:16px 24px;font-size:15px}
.mnav-btm>a:last-child{font-size:13px;font-weight:700;color:var(--faint);text-align:center}
body.mnav-on{overflow:hidden}
@media(max-width:1080px){.hdr nav{display:none}.burger{display:grid}}
@media(min-width:1081px){.mnav{display:none!important}}
/* 좁은 화면에서는 헤더를 로고 + 햄버거로 단순화 (지구본·Apply 는 메뉴 안에 있음) */
@media(max-width:560px){.hdr .end .globe,.hdr .end .btn{display:none}}

/* faculty cards with photo */
.fac .fx{display:grid;grid-template-columns:96px minmax(0,1fr);gap:16px;align-items:start}
.fac .pf{width:96px;height:120px;object-fit:cover;border-radius:10px;background:var(--wash)}
.fac div.noph{display:grid;place-items:center;font-size:34px;font-weight:800;color:var(--brand-lt)}
.fac .adm2{font-size:12px;color:var(--sub);margin-top:2px;line-height:1.5}