/* ==========================================================================
   국방AI사이버융합연구소 — 세종대학교 UI 기본요소 지침 적용 스타일시트
   Color: Sejong Crimson #C3002F / Sejong Gray #51626F (PANTONE 200C / 7545C)
   Type : 명조(헤드라인) + 고딕(본문)
   ========================================================================== */

:root{
  /* ---- Palette I 주조색 ---- */
  --crimson:#C3002F;
  --crimson-dk:#9B0025;
  --crimson-tint:#FBEDF0;
  --gray:#51626F;

  /* ---- Palette II 보조색 ---- */
  --cool-gray:#D5D6D2;
  --ivory:#FFFDE4;
  --warm-gray1:#B7B1A9;
  --warm-gray2:#837259;
  --light-gray:#8996A0;
  --beige:#D2B887;
  --light-gold:#D7BF77;

  /* ---- 파생 토큰 ---- */
  --bg-soft:#FDFCF7;
  --txt:#28323B;
  --txt-mute:#8996A0;
  --line:#E3E1D9;
  --white:#FFFFFF;
  /* 프라이머리 시그니춰 원본(.ai)에서 실측한 로고타입 잉크색 — 시그니춰 조합에만 사용 */
  --navy:#385163;

  /* ---- 서체 (지정서체 대체: 윤명조300→Noto Serif KR, 윤고딕300→Noto Sans KR) ---- */
  --font-serif:"Noto Serif KR","Batang","바탕",serif;
  --font-sans:"Noto Sans KR","Malgun Gothic","맑은 고딕","Apple SD Gothic Neo",sans-serif;

  --radius:10px;
  --shadow-sm:0 4px 16px -6px rgba(40,50,59,0.10);
  --shadow-lg:0 20px 44px -18px rgba(40,50,59,0.18);
  --maxw:1180px;
  font-size:16px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth; scroll-padding-top:96px;}
body{
  margin:0;
  font-family:var(--font-sans);
  color:var(--txt);
  background:var(--white);
  line-height:1.68;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%; display:block;}
a{color:inherit; text-decoration:none;}
ul,ol{margin:0; padding:0; list-style:none;}
h1,h2,h3,h4,h5{margin:0; font-weight:700; font-family:var(--font-serif);}
p{margin:0;}
.container{max-width:var(--maxw); margin:0 auto; padding:0 24px;}
.muted{color:var(--txt-mute); font-weight:400;}
.nowrap{white-space:nowrap;}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0; transform:translateY(22px); transition:opacity .7s ease, transform .7s ease;}
.reveal.is-visible{opacity:1; transform:translateY(0);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:13px 30px; border-radius:3px; font-weight:700; font-size:.95rem;
  font-family:var(--font-sans);
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
  border:1.5px solid transparent; white-space:nowrap;
}
.btn-primary{background:var(--crimson); color:var(--white); box-shadow:0 10px 22px -10px rgba(195,0,47,.55);}
.btn-primary:hover{background:var(--crimson-dk); transform:translateY(-2px);}
.btn-ghost{border-color:var(--gray); color:var(--gray);}
.btn-ghost:hover{background:var(--gray); color:var(--white); transform:translateY(-2px);}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header{
  position:fixed; inset:0 0 auto 0; z-index:100;
  background:rgba(255,255,255,0.88);
  backdrop-filter:blur(10px) saturate(140%);
  -webkit-backdrop-filter:blur(10px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease, background .3s ease;
}
.site-header::before{
  content:""; position:absolute; left:0; top:0; width:100%; height:3px;
  background:var(--crimson);
}
.site-header.scrolled{
  background:rgba(255,255,255,0.98);
  box-shadow:var(--shadow-sm);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  height:84px;
}
/* 부속기관 조합 규정: Authority Mark + "세종대학교" 로고타입 + 부속기관명(로고타입 좌측 기준 정렬) */
.brand{display:flex; align-items:center; gap:13px; color:var(--navy);}
.brand-mark{flex:none; display:flex;}
.brand-mark img{height:44px; width:auto;}
.brand-lockup{display:flex; flex-direction:column; align-items:flex-start; line-height:1.28;}
.brand-univ{font-size:1.2rem; letter-spacing:-0.01em; font-family:var(--font-sans); font-weight:800; color:var(--crimson);}
.brand-dept{font-style:normal; font-size:.72rem; color:var(--navy); opacity:.82; letter-spacing:-0.01em; font-weight:500; font-family:var(--font-sans);}

.main-nav ul{display:flex; gap:2px;}
.nav-link{
  position:relative; display:block; padding:10px 15px;
  color:var(--txt); font-size:.9rem; font-weight:500; white-space:nowrap;
  transition:color .2s ease;
}
.nav-link::after{
  content:""; position:absolute; left:15px; right:15px; bottom:4px; height:2px;
  background:var(--crimson); transform:scaleX(0); transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--crimson);}
.nav-link.active{color:var(--crimson); font-weight:700;}
.nav-link.active::after{transform:scaleX(1);}

.nav-toggle{
  display:none; flex-direction:column; justify-content:center; gap:5px;
  width:40px; height:40px; background:none; border:none; cursor:pointer; padding:0;
}
.nav-toggle span{display:block; width:22px; height:2px; background:var(--txt); margin:0 auto; transition:transform .3s ease, opacity .3s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.nav-backdrop{
  position:fixed; inset:0; background:rgba(40,50,59,.45); z-index:90;
  opacity:0; pointer-events:none; transition:opacity .3s ease;
}
.nav-backdrop.show{opacity:1; pointer-events:auto;}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{
  position:relative; display:flex; align-items:center;
  background:var(--white);
  color:var(--txt); padding:118px 0 52px;
  overflow:hidden;
}
.hero-bg{position:absolute; inset:0; z-index:0; display:flex; justify-content:flex-end; align-items:center; pointer-events:none;}
.hero-bg img{height:78%; max-height:640px; width:auto; opacity:.05; transform:translateX(18%);}
.hero-inner{position:relative; z-index:1;}
.eyebrow{
  font-size:.82rem; font-weight:700; letter-spacing:.14em; color:var(--crimson);
  text-transform:uppercase; margin-bottom:20px; padding-left:18px; position:relative;
}
.eyebrow::before{content:""; position:absolute; left:0; top:50%; width:11px; height:11px; background:var(--crimson); transform:translateY(-50%);}
.hero h1{
  font-size:clamp(2.1rem, 5vw, 3.5rem); line-height:1.3; letter-spacing:-0.01em;
  margin-bottom:26px; font-weight:700; color:var(--txt);
}
.hero-desc{
  font-size:clamp(1rem, 1.6vw, 1.12rem); color:var(--gray); max-width:620px; margin-bottom:26px;
  font-weight:400; font-family:var(--font-sans);
}
.hero-actions{display:flex; gap:14px; flex-wrap:wrap; margin-bottom:36px;}

.hero-stats{
  display:grid; grid-template-columns:repeat(4,1fr); gap:20px;
  border-top:1px solid var(--line); padding-top:22px; max-width:760px;
}
.hero-stats dt{font-size:clamp(1.5rem,3vw,2.15rem); font-weight:700; color:var(--crimson); font-variant-numeric:tabular-nums; font-family:var(--font-serif);}
.hero-stats dd{margin-top:6px; font-size:.8rem; color:var(--gray); font-weight:500;}

.scroll-cue{
  position:absolute; left:50%; bottom:28px; transform:translateX(-50%);
  width:28px; height:44px; border:2px solid var(--warm-gray1); border-radius:20px;
  z-index:1;
}
.scroll-cue span{
  position:absolute; top:8px; left:50%; width:4px; height:8px; border-radius:2px;
  background:var(--crimson); transform:translateX(-50%);
  animation:scrollcue 1.8s infinite;
}
@keyframes scrollcue{
  0%{opacity:1; top:8px;} 70%{opacity:0; top:22px;} 100%{opacity:0; top:22px;}
}

/* ==========================================================================
   Sections
   ========================================================================== */
.section{padding:60px 0;}
.section-alt{background:var(--bg-soft);}
.section-eyebrow{
  font-size:.78rem; font-weight:700; letter-spacing:.16em; color:var(--crimson);
  text-transform:uppercase; margin-bottom:10px; padding-left:16px; position:relative;
  font-family:var(--font-sans);
}
.section-eyebrow::before{content:""; position:absolute; left:0; top:50%; width:10px; height:10px; background:var(--crimson); transform:translateY(-50%);}
.section-title{font-size:clamp(1.6rem,3.2vw,2.2rem); letter-spacing:-0.01em; margin-bottom:12px; color:var(--txt);}
.section-desc{color:var(--gray); max-width:680px; font-size:1rem; margin-bottom:30px; font-family:var(--font-sans);}
.sub-title{font-size:1.2rem; font-weight:700; margin:32px 0 16px; font-family:var(--font-serif); color:var(--txt);}
.footnote-mark{display:block; font-size:.78rem; color:var(--txt-mute); margin-top:6px; font-weight:400; font-family:var(--font-sans);}

/* ---------- About ---------- */
.emblem-showcase{
  display:flex; align-items:center; justify-content:center; gap:28px; flex-wrap:wrap;
  background:var(--bg-soft); border:1px solid var(--line); border-radius:var(--radius);
  padding:22px; margin-bottom:28px;
}
.emblem-badge{width:150px; height:150px; flex:none;}
.emblem-divider{width:1px; height:96px; background:var(--line); flex:none;}
.emblem-logo{width:auto; height:78px; flex:none;}
.brand-story{
  margin:-12px 0 28px; padding:22px 24px; background:var(--white);
  border:1px solid var(--line); border-left:5px solid var(--crimson); border-radius:var(--radius);
}
.brand-story-head{margin-bottom:18px;}
.brand-story-head .tag{display:inline-block; margin-bottom:7px; color:var(--crimson); font-size:.7rem; font-weight:800; letter-spacing:.1em;}
.brand-story-head h3{margin-bottom:7px; color:var(--navy); font-size:1.18rem;}
.brand-story-head p{color:var(--gray); font-size:.9rem; line-height:1.65;}
.brand-story-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:18px;}
.brand-story-grid article{padding-top:13px; border-top:1px solid var(--line);}
.brand-story-grid strong{display:block; margin-bottom:7px; color:var(--crimson); font-family:var(--font-serif); font-size:.94rem;}
.brand-story-grid p{color:var(--gray); font-size:.82rem; line-height:1.65;}
.brand-story-grid b{color:var(--txt); font-weight:700;}
@media (max-width:640px){
  .emblem-showcase{flex-direction:column; gap:22px; padding:28px 20px;}
  .emblem-divider{width:80%; height:1px;}
  .emblem-badge{width:120px; height:120px;}
  .emblem-logo{height:60px;}
  .brand-story{margin-top:-10px; padding:19px 18px;}
  .brand-story-grid{grid-template-columns:1fr; gap:13px;}
}

.vision-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:20px; margin-bottom:8px;}
.vision-card{
  position:relative; background:var(--white); border:1px solid var(--line);
  border-radius:var(--radius); padding:30px 28px 28px; box-shadow:var(--shadow-sm);
  overflow:hidden;
}
.vision-card::before{content:""; position:absolute; left:0; top:0; width:100%; height:4px; background:var(--crimson);}
.vision-card .tag{
  display:inline-block; font-size:.72rem; font-weight:700; letter-spacing:.08em;
  color:var(--crimson); background:var(--crimson-tint); padding:5px 12px; border-radius:3px;
  margin-bottom:18px; font-family:var(--font-sans);
}
.vision-card p{font-size:1.02rem; line-height:1.6; font-family:var(--font-sans); color:var(--txt);}
.vision-card strong{color:var(--crimson); font-weight:700;}

/* ---------- Vision Convergence (3대 융합 연구영역 → Collaboration) ---------- */
.vision-convergence{display:flex; flex-direction:column; align-items:center; margin-bottom:28px;}
.vc-hub{
  display:flex; flex-direction:column; align-items:center; gap:3px;
  background:var(--crimson); color:var(--white); border-radius:999px;
  padding:16px 44px; box-shadow:var(--shadow-sm); position:relative; z-index:2;
}
.vc-hub strong{font-family:var(--font-serif); font-size:1.1rem; font-weight:800; letter-spacing:.02em;}
.vc-hub span{font-size:.72rem; color:rgba(255,255,255,.85); font-family:var(--font-sans);}

.vc-connector{width:100%; max-width:640px; height:26px; display:block; overflow:visible;}
.vc-connector line{stroke:var(--warm-gray1); stroke-width:1.5; vector-effect:non-scaling-stroke;}

.vc-cards{display:grid; grid-template-columns:repeat(3,1fr); gap:20px; width:100%; margin-top:-2px;}
.vc-card{
  position:relative; background:var(--white); border:1px solid var(--line); border-radius:var(--radius);
  padding:26px 20px 24px; text-align:center; box-shadow:var(--shadow-sm); overflow:hidden;
}
.vc-card::before{content:""; position:absolute; left:0; top:0; width:100%; height:4px; background:var(--crimson);}
.vc-image{width:100%; max-width:180px; height:auto; aspect-ratio:1; object-fit:contain; margin:4px auto 18px; display:block;}
.vc-card h4{font-size:1rem; font-family:var(--font-serif); color:var(--txt); margin-bottom:8px; font-weight:700; line-height:1.4;}
.vc-card p{font-size:.86rem; color:var(--gray); font-family:var(--font-sans);}

@media (max-width:860px){
  .vc-connector{display:none;}
  .vc-cards{grid-template-columns:1fr; margin-top:20px;}
}

.purpose-list{display:flex; flex-direction:column; gap:2px;}
.purpose-list li{
  display:flex; align-items:flex-start; gap:18px; padding:13px 4px;
  border-bottom:1px solid var(--line); font-size:.98rem; font-family:var(--font-sans);
}
.purpose-list .num{
  flex:none; font-weight:700; color:var(--crimson); font-size:.85rem;
  border:1.5px solid var(--crimson); border-radius:50%; width:34px; height:34px;
  display:flex; align-items:center; justify-content:center;
}

.timeline{position:relative; padding-left:26px; border-left:2px solid var(--line); display:flex; flex-direction:column; gap:18px;}
.timeline li{position:relative; display:flex; flex-wrap:wrap; gap:4px 16px; align-items:baseline;}
.timeline li::before{
  content:""; position:absolute; left:-32px; top:5px; width:12px; height:12px;
  border-radius:50%; background:var(--crimson); box-shadow:0 0 0 4px var(--crimson-tint);
}
.tl-date{font-weight:700; color:var(--crimson); min-width:78px; font-size:.95rem; font-family:var(--font-serif);}
.tl-body{font-size:.98rem; font-family:var(--font-sans);}
.tl-body em{font-style:normal; color:var(--gray); font-size:.88rem;}

/* ---------- Greeting ---------- */
.greeting-grid{display:grid; grid-template-columns:220px 1fr; gap:36px; align-items:start;}

.greeting-portrait{display:flex; flex-direction:column; gap:22px; position:sticky; top:100px;}
.portrait-card{display:flex; flex-direction:column; align-items:center; gap:16px;}
.portrait-frame{
  width:100%; aspect-ratio:3/4; border-radius:var(--radius); background:var(--bg-soft);
  border:1px solid var(--line); display:flex; align-items:center; justify-content:center;
  position:relative; overflow:hidden;
}
.portrait-frame::before{content:""; position:absolute; left:0; top:0; width:100%; height:4px; background:var(--crimson); z-index:1;}
.portrait-mark{width:80%; height:auto; opacity:1;}
.portrait-photo{width:100%; height:100%; object-fit:cover; object-position:top center; display:block;}
.portrait-name{display:flex; flex-direction:column; align-items:center; text-align:center; gap:4px;}
.portrait-name strong{font-size:1.15rem; font-family:var(--font-serif); color:var(--navy); font-weight:700;}
.portrait-name span{font-size:.8rem; color:var(--gray); font-family:var(--font-sans);}

.greeting-body{display:flex; flex-direction:column; gap:15px;}
.greeting-lead{
  font-family:var(--font-serif); font-size:1.3rem; font-weight:700; color:var(--txt);
  line-height:1.5; padding-bottom:13px; border-bottom:1px solid var(--line);
}
.greeting-body p{font-size:1rem; color:var(--txt); line-height:1.75; font-family:var(--font-sans);}
.greeting-body p strong{color:var(--crimson); font-weight:700;}

.quote-band{
  position:relative; background:var(--crimson-tint); border-radius:4px;
  padding:18px 24px 18px 28px; font-family:var(--font-serif); font-weight:700;
  font-size:1.06rem; line-height:1.6; color:var(--txt);
}
.quote-band::before{content:""; position:absolute; left:0; top:0; width:5px; height:100%; background:var(--crimson);}

.greeting-sign{
  align-self:flex-end; text-align:right; display:flex; flex-direction:column; gap:6px;
  padding-top:12px; margin-top:2px; border-top:1px solid var(--line);
}
.greeting-sign span{font-size:.85rem; color:var(--gray); font-family:var(--font-sans);}
.greeting-sign strong{font-size:1.15rem; color:var(--navy); font-family:var(--font-serif); font-weight:700; letter-spacing:.02em;}

@media (max-width:860px){
  .greeting-grid{grid-template-columns:1fr;}
  .greeting-portrait{position:static; flex-direction:column; gap:16px;}
  .portrait-card{flex-direction:row; align-items:center; gap:16px; justify-content:flex-start;}
  .portrait-frame{width:84px; flex:none; aspect-ratio:3/4;}
  .portrait-name{align-items:flex-start; text-align:left;}
}

/* ---------- Framework ---------- */
.framework-frame{
  background:var(--white); border:1px solid var(--line); border-radius:var(--radius);
  box-shadow:var(--shadow-sm); padding:18px; overflow:hidden;
}
.framework-scroll{overflow-x:auto; -webkit-overflow-scrolling:touch; border-radius:6px;}
.framework-scroll img{display:block; width:100%; min-width:920px; height:auto; border-radius:6px;}
.framework-hint{display:none; margin-top:12px; font-size:.78rem; color:var(--gray); font-family:var(--font-sans);}
@media (max-width:900px){
  .framework-hint{display:block;}
}

/* ---------- Organization ---------- */
.org-chart{margin-bottom:8px;}
.org-root{
  width:fit-content; margin:0 auto 16px; padding:13px 32px; border-radius:3px;
  background:var(--crimson); color:var(--white); font-weight:700; font-size:1.05rem;
  box-shadow:var(--shadow-sm); text-align:center; font-family:var(--font-serif);
}
.org-branches{display:grid; grid-template-columns:repeat(4,1fr); gap:14px;}
.org-center{
  background:var(--white); border:1px solid var(--line); border-radius:var(--radius);
  padding:17px; box-shadow:var(--shadow-sm); display:flex; flex-direction:column;
  border-top:3px solid var(--gray);
}
.org-center h4{font-size:1rem; margin-bottom:14px; color:var(--txt); display:flex; align-items:center; gap:8px; flex-wrap:wrap; font-family:var(--font-serif);}
.badge-new{font-size:.66rem; font-weight:700; color:var(--crimson-dk); background:var(--crimson-tint); padding:3px 9px; border-radius:3px; font-family:var(--font-sans);}
.member-list{display:flex; flex-direction:column; gap:6px;}
.member-list li{font-size:.9rem; color:var(--txt); padding-bottom:6px; border-bottom:1px dashed var(--line); font-family:var(--font-sans);}
.member-list li:last-child{border-bottom:none; padding-bottom:0;}
.member-list li .muted{color:var(--txt-mute);}
.center-note{font-size:.88rem; color:var(--gray); line-height:1.6; font-family:var(--font-sans);}

.org-standalone{
  width:fit-content; margin-top:22px; padding:12px 26px; border:1.5px dashed var(--warm-gray1);
  border-radius:6px; color:var(--txt); font-size:.92rem; font-weight:600; font-family:var(--font-sans);
}

.expert-grid{display:grid; grid-template-columns:repeat(5,1fr); gap:16px;}
.expert-card{
  background:var(--white); border:1px solid var(--line); border-radius:var(--radius);
  padding:22px 18px; text-align:center; box-shadow:var(--shadow-sm);
}
.expert-card.lead{background:var(--crimson); color:var(--white); border-color:var(--crimson);}
.expert-card.lead p strong{color:var(--white);}
.expert-card h5{font-size:.95rem; margin-bottom:9px; font-family:var(--font-serif); color:var(--txt);}
.expert-card.lead h5{color:var(--white);}
.expert-card p{font-size:.82rem; color:var(--gray); line-height:1.5; font-family:var(--font-sans);}
.expert-card.lead p{color:rgba(255,255,255,.9);}

.dept-badges{display:flex; flex-wrap:wrap; gap:12px;}
.dept-badges span{
  display:inline-flex; align-items:center; gap:8px; background:var(--white); border:1px solid var(--line);
  padding:10px 18px; border-radius:999px; font-weight:700; font-size:.88rem; box-shadow:var(--shadow-sm);
  font-family:var(--font-sans); color:var(--txt);
}
.dept-badges em{font-style:normal; font-weight:500; color:var(--crimson); font-size:.78rem;}

/* ---------- Achievements ---------- */
.stat-cards{display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-bottom:28px;}
.stat-card{
  position:relative; background:var(--white); border:1px solid var(--line); border-radius:var(--radius);
  padding:18px 20px; box-shadow:var(--shadow-sm); text-align:left; overflow:hidden;
}
.stat-card::before{content:""; position:absolute; left:0; top:0; width:4px; height:100%; background:var(--crimson);}
.stat-num{font-size:2rem; font-weight:700; color:var(--crimson); font-variant-numeric:tabular-nums; margin-bottom:6px; font-family:var(--font-serif);}
.stat-label{font-size:.85rem; color:var(--gray); font-weight:600; font-family:var(--font-sans);}
.stat-label .muted{display:block; font-size:.75rem; font-weight:400; margin-top:2px;}

.chart-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:16px; margin-bottom:8px;}
.chart-card{
  background:var(--white); border:1px solid var(--line); border-radius:var(--radius);
  padding:20px; box-shadow:var(--shadow-sm);
}
.chart-card h4{font-size:1rem; margin-bottom:16px; color:var(--txt); font-family:var(--font-serif);}
.bars{display:flex; flex-direction:column; gap:11px;}
.bar-row{display:grid; grid-template-columns:64px 1fr 56px; align-items:center; gap:12px;}
.bar-label{font-size:.74rem; color:var(--gray); line-height:1.35; font-weight:600; font-family:var(--font-sans);}
.bar-label em{font-style:normal; color:var(--txt-mute);}
.bar-track{background:var(--bg-soft); border:1px solid var(--line); border-radius:4px; height:26px; overflow:hidden; position:relative;}
.bar-fill{
  --pct:0%;
  display:flex; align-items:center; justify-content:flex-end;
  height:100%; width:0%; border-radius:3px;
  background:linear-gradient(90deg, var(--crimson-dk), var(--crimson));
  color:var(--white); font-size:.72rem; font-weight:700; padding-right:8px;
  transition:width 1.1s cubic-bezier(.16,.8,.3,1);
  white-space:nowrap; font-family:var(--font-sans);
}
.bar-fill.animate{width:var(--pct);}
.bar-value{font-size:.78rem; font-weight:700; color:var(--gray); text-align:right; font-variant-numeric:tabular-nums; font-family:var(--font-sans);}
.chart-note{margin-top:14px; font-size:.8rem; color:var(--gray); line-height:1.6; border-top:1px dashed var(--line); padding-top:10px; font-family:var(--font-sans);}

.donut-card{display:flex; flex-direction:column; align-items:center; text-align:center;}
.donut-wrap{position:relative; width:150px; height:150px; margin:4px 0 14px;}
.donut{
  width:100%; height:100%; border-radius:50%;
  background:conic-gradient(var(--c1) calc(var(--p1) * 1%), var(--c2) 0);
  display:flex; align-items:center; justify-content:center;
  transition:background 1s ease;
}
.donut::before{content:""; width:70%; height:70%; border-radius:50%; background:var(--white);}
.donut-center{position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center;}
.donut-center strong{font-size:1.7rem; color:var(--txt); line-height:1; font-family:var(--font-serif);}
.donut-center span{font-size:.75rem; color:var(--gray);}
.donut-legend{display:flex; flex-direction:column; gap:10px; align-self:stretch;}
.donut-legend li{display:flex; align-items:center; gap:10px; font-size:.85rem; justify-content:center; font-family:var(--font-sans);}
.donut-legend i{width:11px; height:11px; border-radius:2px; flex:none;}
.donut-legend b{color:var(--txt);}
.donut-legend span{color:var(--gray); font-size:.78rem;}

.strategy-block{margin-top:8px;}
.strategy-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:16px;}
.strategy-card{
  position:relative; background:var(--white); border:1px solid var(--line); border-radius:var(--radius);
  padding:20px 20px; overflow:hidden;
}
.strategy-card::before{content:""; position:absolute; left:0; top:0; width:100%; height:4px; background:var(--crimson);}
.strategy-num{
  position:absolute; right:18px; top:10px; font-size:3.6rem; font-weight:700;
  color:var(--crimson-tint); line-height:1; font-family:var(--font-serif);
}
.strategy-card h5{font-size:1.02rem; margin-bottom:10px; color:var(--crimson); position:relative; font-family:var(--font-serif);}
.strategy-card p{font-size:.85rem; color:var(--gray); margin-bottom:8px; line-height:1.55; position:relative; font-family:var(--font-sans);}
.strategy-card p:last-child{margin-bottom:0;}
.strategy-card strong{color:var(--txt);}

/* ---------- Projects ---------- */
.project-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:14px;}
.project-card{
  background:var(--white); border:1px solid var(--line); border-left:4px solid var(--crimson);
  border-radius:6px; padding:17px; box-shadow:var(--shadow-sm);
  display:flex; flex-direction:column; gap:9px; transition:transform .2s ease, box-shadow .2s ease;
}
.project-card:hover{transform:translateY(-3px); box-shadow:var(--shadow-lg);}
.project-card.status-upcoming{border-left-color:var(--gray);}
.project-card.status-planned{border-left-color:var(--warm-gray1);}
.project-card header{display:flex; align-items:center; justify-content:space-between; gap:8px;}
.status-pill{
  font-size:.68rem; font-weight:700; padding:4px 10px; border-radius:3px;
  background:var(--crimson-tint); color:var(--crimson-dk); letter-spacing:.02em;
  font-family:var(--font-sans);
}
.status-upcoming .status-pill{background:var(--cool-gray); color:var(--gray);}
.status-planned .status-pill{background:transparent; border:1px solid var(--warm-gray1); color:var(--warm-gray2);}
.period{font-size:.72rem; color:var(--txt-mute); font-weight:600; font-variant-numeric:tabular-nums; font-family:var(--font-sans);}
.project-card h5{font-size:.94rem; line-height:1.5; color:var(--txt); font-weight:700; font-family:var(--font-sans);}
.project-card h5 em{font-style:normal; color:var(--gray); font-size:.85em;}
.project-card .meta{display:flex; justify-content:space-between; font-size:.78rem; color:var(--gray); font-weight:600; border-top:1px dashed var(--line); padding-top:10px; font-family:var(--font-sans);}

/* ---------- Collaboration ---------- */

/* Partner network — hub(연구소) + 8 partner nodes, 3x3 grid with named areas */
.partner-network{
  display:grid; grid-template-columns:repeat(3,1fr); gap:20px 18px;
  grid-template-areas:
    "a1 a2 a3"
    "a4 a5 a6"
    "a7 a8 a9";
  max-width:780px; margin:0 auto 32px; align-items:center; justify-items:center;
}
.pn-area1{grid-area:a1;} .pn-area2{grid-area:a2;} .pn-area3{grid-area:a3;}
.pn-area4{grid-area:a4;} .pn-area5{grid-area:a5;} .pn-area6{grid-area:a6;}
.pn-area7{grid-area:a7;} .pn-area8{grid-area:a8;} .pn-area9{grid-area:a9;}

.pn-node{display:flex; flex-direction:column; align-items:center; gap:10px; text-align:center;}
.pn-circle{
  width:100%; aspect-ratio:1; max-width:140px; border-radius:50%; background:var(--white);
  border:1.5px solid var(--crimson); box-shadow:var(--shadow-sm);
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  padding:12px; gap:5px;
}
.pn-circle h5{font-size:.88rem; font-family:var(--font-serif); color:var(--txt); font-weight:700; line-height:1.3;}
.pn-rule{width:22px; height:1px; background:var(--line);}
.pn-circle p{font-size:.68rem; color:var(--gray); font-family:var(--font-sans); line-height:1.4;}
.pn-tag{
  font-size:.68rem; font-weight:700; color:var(--crimson-dk); background:var(--crimson-tint);
  padding:4px 12px; border-radius:999px; font-family:var(--font-sans); white-space:nowrap;
}

.pn-hub{
  position:relative; width:100%; aspect-ratio:1; max-width:172px; border-radius:50%;
  background:var(--crimson); color:var(--white); box-shadow:var(--shadow-lg);
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:4px; overflow:hidden; padding:14px;
}
.pn-hub-watermark{position:absolute; width:62%; height:auto; opacity:.16; pointer-events:none;}
.pn-hub strong{position:relative; font-family:var(--font-serif); font-size:1.02rem; font-weight:800;}
.pn-hub em{position:relative; font-style:normal; font-size:.72rem; color:rgba(255,255,255,.88); font-family:var(--font-sans); text-align:center; line-height:1.4;}

@media (max-width:760px){
  .partner-network{
    grid-template-columns:repeat(2,1fr); gap:22px 16px;
    grid-template-areas:
      "a5 a5"
      "a1 a2"
      "a3 a4"
      "a6 a7"
      "a8 a9";
  }
  .pn-hub{max-width:220px; margin:0 auto 8px;}
  .pn-circle{max-width:130px;}
}

.collab-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:18px; margin-bottom:8px;}
.collab-card{
  background:var(--white); border:1px solid var(--line); border-radius:var(--radius); padding:18px;
  box-shadow:var(--shadow-sm); border-top:3px solid var(--gray);
}
.collab-card h5{font-size:.98rem; margin-bottom:9px; color:var(--txt); font-family:var(--font-serif);}
.collab-card p{font-size:.85rem; color:var(--gray); line-height:1.55; margin-bottom:9px; font-family:var(--font-sans);}
.collab-sub{font-size:.74rem; color:var(--txt-mute); border-top:1px dashed var(--line); padding-top:10px; display:block; font-family:var(--font-sans);}


/* ---------- Contact / Closing band ---------- */
.section-contact{
  background:var(--crimson); color:var(--white); text-align:center; position:relative; overflow:hidden;
}
.section-contact::after{
  content:""; position:absolute; right:-6%; top:50%; transform:translateY(-50%);
  width:46%; max-width:520px; aspect-ratio:1/1;
  background:url("assets/emblem_circular.png") center/contain no-repeat; opacity:.07; pointer-events:none;
}
.section-contact .container{position:relative; z-index:1;}
.section-contact .section-eyebrow{
  color:#FBC9D3; display:inline-flex; align-items:center; gap:10px;
  padding-left:0; margin-left:auto; margin-right:auto;
}
.section-contact .section-eyebrow::before{position:static; background:var(--white); transform:none;}
.section-contact .section-title{margin-left:auto; margin-right:auto;}
.section-contact .section-title{color:var(--white);}
.section-contact .section-desc{color:rgba(255,255,255,.82); margin-left:auto; margin-right:auto;}
.closing-signature{height:84px; width:auto; margin:0 auto 22px; opacity:.97;}
.contact-card{
  background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.28);
  border-radius:var(--radius); padding:24px; max-width:760px; margin:0 auto; text-align:left;
  backdrop-filter:blur(2px);
}
.contact-card dl{display:flex; flex-direction:column; gap:12px;}
.contact-card div{display:flex; flex-wrap:wrap; gap:6px 18px; border-bottom:1px solid rgba(255,255,255,.2); padding-bottom:12px;}
.contact-card div:last-child{border-bottom:none; padding-bottom:0;}
.contact-card dt{width:110px; flex:none; font-weight:700; color:var(--white); font-size:.88rem; font-family:var(--font-serif);}
.contact-card dd{margin:0; flex:1; font-size:.92rem; color:rgba(255,255,255,.92); font-family:var(--font-sans);}
.contact-note{margin-top:14px; font-size:.78rem; color:rgba(255,255,255,.7); text-align:center; font-family:var(--font-sans);}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer{background:var(--bg-soft); color:var(--gray); padding:16px 0; border-top:1px solid var(--line);}
.footer-inner{display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap;}
.footer-brand{display:flex; align-items:center; gap:14px; flex-wrap:wrap;}
.footer-brand img{height:30px; width:auto; flex:none;}
.footer-lockup{display:flex; flex-direction:column; align-items:flex-start; line-height:1.25; padding-right:16px; border-right:1px solid var(--line);}
.footer-lockup strong{font-size:.86rem; font-weight:800; color:var(--navy); font-family:var(--font-sans);}
.footer-lockup em{font-style:normal; font-size:.66rem; color:var(--navy); opacity:.8; font-family:var(--font-sans);}
.footer-copy{font-size:.76rem; color:var(--txt-mute); font-family:var(--font-sans);}
.to-top{
  background:var(--white); color:var(--gray); border:1px solid var(--line); width:34px; height:34px;
  border-radius:50%; cursor:pointer; font-size:.7rem; transition:background .2s ease, color .2s ease, transform .2s ease;
}
.to-top:hover{background:var(--crimson); color:var(--white); border-color:var(--crimson); transform:translateY(-2px);}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width:1080px){
  .org-branches{grid-template-columns:repeat(2,1fr);}
  .expert-grid{grid-template-columns:repeat(3,1fr);}
  .collab-grid{grid-template-columns:repeat(2,1fr);}
  .chart-grid{grid-template-columns:1fr;}
  .project-grid{grid-template-columns:repeat(2,1fr);}
}

@media (max-width:960px){
  html{scroll-padding-top:68px;}
  .header-inner{height:64px;}
  .brand{gap:9px;}
  .brand-mark img{height:34px;}
  .brand-univ{font-size:1rem;}
  .brand-dept{font-size:.62rem;}
  .main-nav{
    position:fixed; top:64px; right:0; height:calc(100vh - 64px); width:min(320px,86vw);
    background:var(--white); border-left:1px solid var(--line);
    transform:translateX(100%); transition:transform .35s ease; z-index:95;
    padding:24px 8px; overflow-y:auto;
  }
  .main-nav.open{transform:translateX(0);}
  .main-nav ul{flex-direction:column; gap:2px;}
  .nav-link{padding:14px 18px; border-radius:6px; font-size:1rem;}
  .nav-link::after{display:none;}
  .nav-link.active{background:var(--crimson-tint); color:var(--crimson-dk);}
  .nav-toggle{display:flex;}

  .hero{padding:96px 0 48px;}
  .hero-bg img{opacity:.06;}
  .hero-stats{grid-template-columns:repeat(2,1fr); row-gap:26px;}
  .vision-grid{grid-template-columns:1fr;}
  .org-branches{grid-template-columns:1fr;}
  .expert-grid{grid-template-columns:repeat(2,1fr);}
  .stat-cards{grid-template-columns:repeat(2,1fr);}
  .strategy-grid{grid-template-columns:1fr;}
  .project-grid{grid-template-columns:1fr;}
  .collab-grid{grid-template-columns:1fr;}
  .section{padding:44px 0;}
  .bar-row{grid-template-columns:56px 1fr 48px; gap:8px;}
  .section-contact::after{width:70%; opacity:.06;}
}

@media (max-width:480px){
  .br-desktop{display:none;}
  .hero h1{font-size:2rem;}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .stat-cards{grid-template-columns:1fr 1fr;}
  .expert-grid{grid-template-columns:1fr;}
  .contact-card dt{width:auto;}
  .footer-inner{justify-content:center; text-align:center;}
}

@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1; transform:none; transition:none;}
  .bar-fill{transition:none;}
  .scroll-cue span{animation:none;}
}
/* Footer institutional name uses Sejong Crimson. */
.footer-lockup strong{color:var(--crimson);}