:root{
  --bg:#061521;
  --bg2:#081a29;
  --panel:#071b2a;
  --panel2:#0a2234;
  --text:#f5f8fb;
  --muted:#abc0cd;
  --cyan:#21dcff;
  --cyan2:#2494db;
  --line:rgba(50,170,215,.32);
  --line2:rgba(255,255,255,.08);
  --max:1500px;
  --radius:8px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{min-height:100%}
body{
  margin:0;
  min-height:100vh;
  background:#061521;
  color:var(--text);
  font-family:Arial,Helvetica,sans-serif;
  font-size:15px;
  line-height:1.45;
}
.page-shell{
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
main{flex:1 0 auto}
.footer{margin-top:auto}
a{color:var(--cyan);text-decoration:none}
a:hover{color:#8df1ff}
img{display:block;max-width:100%}
.site-header{
  position:sticky; top:0; z-index:1000;
  background:rgba(4,18,30,.97);
  border-bottom:1px solid var(--line);
}
.header-inner{
  max-width:var(--max); margin:auto; padding:5px 28px;
  height:68px; display:flex; align-items:center; gap:24px;
}
.brand{display:flex;align-items:center;min-width:255px}
.brand img.full-logo{height:58px;width:auto;object-fit:contain}
.nav{margin-left:auto;display:flex;align-items:center;gap:28px}
.nav a{color:#d6e2e9;font-size:15px;font-weight:600;text-transform:uppercase;letter-spacing:-.05em;}
.nav a.active,.nav a:hover{color:var(--cyan)}
.lang{display:flex;align-items:center;gap:10px;margin-left:14px}
.flag{font-size:18px}
.mobile-toggle{display:none}

.hero{
  position:relative;
  min-height:315px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background:#071827;
}
.hero .hero-art{
  position:absolute; inset:0 0 0 43%;
  background:url('../assets/hero/hero-preview.jpg') center/cover no-repeat;
}
.hero:after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(90deg,#061521 0%,#061521 40%,rgba(6,21,33,.82) 51%,rgba(6,21,33,.05) 78%);
}
.hero-inner{
  position:relative; z-index:2; max-width:var(--max); margin:auto;
  padding:28px 28px 30px;
  display:grid; grid-template-columns:1fr .8fr; gap:25px;
}
.hero-lockup{display:flex;gap:18px;align-items:center;margin-bottom:10px}
.hero-lockup img{width:118px;height:118px;object-fit:contain}
.hero-title-block .kicker{margin:0;color:#d2e0e8;font-weight:600;font-size:14px;line-height:1.35}
h1,h2,h3,h4{margin-top:0;line-height:1.16}
h1{
  font-size:38px;
  letter-spacing:-.02em;
  margin:0 0 12px;
  max-width:820px;
}
h1 .accent{color:var(--cyan)}
.hero-copy{max-width:740px;color:#c2d1da;font-size:16px;line-height:1.5;margin:0}

.container{max-width:var(--max);margin:auto;padding:0 28px}
.section{padding:24px 0}
.section.dark2{
  background:#071827;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-head{
  display:flex;justify-content:space-between;align-items:center;
  gap:18px;margin-bottom:12px;
}
.section-head h2{font-size:26px;margin:0}
.section-head p{margin:0;color:var(--muted);font-size:14px}

.home-research-grid{
  display:grid;grid-template-columns:repeat(6,1fr);gap:10px;
}
.research-card{
  background:var(--panel);
  border:1px solid #117ba4;
  border-radius:var(--radius);
  overflow:hidden;
}
.research-card img{
  width:100%; aspect-ratio:16/7.5; object-fit:cover;
}
.research-card .body{padding:10px 11px 12px}
.research-card h3{font-size:15px;margin:0 0 7px}
.research-card p{font-size:12.5px;line-height:1.4;color:#b3c5d0;margin:0}

.home-two{
  display:grid;grid-template-columns:1.2fr .8fr;gap:20px;
}
.news-grid,.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.news-card,.project-card{
  background:var(--panel);
  border:1px solid #117ba4;
  border-radius:var(--radius);
  overflow:hidden;
}
.news-card img{width:100%;aspect-ratio:16/6.3;object-fit:cover}
.news-card .body{padding:9px 10px 11px}
.news-card time{color:var(--cyan);font-size:11.5px;font-weight:700}
.news-card h3{font-size:14px;margin:3px 0 6px}
.news-card p{font-size:12px;line-height:1.35;color:#b7c8d1;margin:0}
.project-card{padding:11px}
.project-card img{
  height:62px;width:100%;object-fit:contain;
  background:#061521;border-radius:6px;margin-bottom:8px;
}
.project-card h3{font-size:14px;margin:0 0 5px}
.project-card p{font-size:12px;line-height:1.35;color:#b7c7d2;margin:0}
.project-card .meta{margin-top:10px;color:var(--cyan);font-size:11px;font-weight:700}

.page-hero{
  background:linear-gradient(135deg,#071827,#0a2032);
  border-bottom:1px solid var(--line);
}
.page-hero .container{padding-top:28px;padding-bottom:25px}
.page-hero h1{font-size:34px;margin:0 0 8px}
.page-hero p{max-width:900px;color:var(--muted);font-size:14px;margin:0}

.content-grid{display:grid;grid-template-columns:180px minmax(0,1fr);gap:28px}
.side-title{
  position:sticky;top:90px;align-self:start;
  color:var(--cyan);font-size:12px;text-transform:uppercase;
  letter-spacing:.12em;font-weight:700;
}

.people-group{margin-bottom:30px}
.people-group h2{font-size:22px;margin-bottom:10px}
.people-list{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line2)}
.person{
  display:grid;grid-template-columns:45px 1fr;gap:12px;
  padding:12px 0;border-bottom:1px solid var(--line2);
}
.person:nth-child(odd){padding-right:20px}
.person:nth-child(even){padding-left:20px;border-left:1px solid var(--line2)}
.avatar{
  width:40px;height:40px;border-radius:8px;
  display:grid;place-items:center;background:#0a263a;border:1px solid #166f94;
  color:var(--cyan);font-size:13px;font-weight:700;
}
.person h3{font-size:15px;margin:0 0 3px}
.person p{font-size:12.5px;color:var(--muted);margin:0}

.pub-year{margin:24px 0 6px;color:var(--cyan);font-size:17px;font-weight:700}
.publication{padding:10px 0;border-bottom:1px solid var(--line2)}
.publication p{font-size:13.5px;line-height:1.45;margin:0}
.publication .links{margin-top:4px}
.publication .doi{
  display:inline-flex;padding:2px 7px;border:1px solid var(--line);
  border-radius:999px;font-size:11px;
}

.project-full{
  display:grid;grid-template-columns:200px 1fr;gap:22px;
  padding:18px 0;border-bottom:1px solid var(--line2);
}
.project-full img{
  width:100%;max-height:125px;object-fit:contain;padding:8px;
  background:#061521;border:1px solid var(--line);border-radius:8px;
}
.project-full h2{font-size:20px;margin-bottom:6px}
.project-full p{font-size:13.5px;color:#c1d1d9;margin:7px 0}
.project-facts{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.fact{font-size:11.5px;border:1px solid var(--line);border-radius:999px;padding:4px 8px;color:#b7d3e0}

.activity-list{border-top:1px solid var(--line2)}
.activity-item{
  display:grid;grid-template-columns:150px 1fr;gap:20px;
  padding:14px 0;border-bottom:1px solid var(--line2);
}
.activity-item .label{color:var(--cyan);font-size:11px;text-transform:uppercase;letter-spacing:.08em;font-weight:700}
.activity-item h2{font-size:18px;margin:0 0 5px}
.activity-item p{font-size:13.5px;margin:0;color:#c2d1d9}

.news-entry{
  display:grid;
  grid-template-columns:minmax(0,1fr) 360px;
  gap:24px;
  align-items:start;
  padding:18px 0 22px;
  border-bottom:1px solid var(--line2);
}
.news-entry.no-gallery{grid-template-columns:1fr}
.news-copy{min-width:0}
.news-entry time{color:var(--cyan);font-size:12px;font-weight:700}
.news-entry h2{font-size:20px;margin:4px 0 7px}
.news-entry p{font-size:13.5px;color:#c2d1d9;margin:0;max-width:900px}
.news-gallery{
  display:grid;
  grid-template-columns:repeat(3, 104px);
  gap:8px;
  justify-content:end;
  margin:0;
}
.news-gallery a{
  display:block;
  width:104px;
  height:72px;
  border:1px solid var(--line);
  border-radius:7px;
  overflow:hidden;
  background:#071827;
}
.news-gallery img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.news-gallery a:hover{border-color:var(--cyan)}
.news-gallery a:hover img{filter:brightness(1.08)}

.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.contact-box{background:#071827;border:1px solid var(--line);border-radius:8px;padding:18px}
.contact-box h2{font-size:20px}
.contact-box p,.contact-line{font-size:13.5px;color:#c3d2db}
.contact-line{padding:7px 0;border-bottom:1px solid var(--line2)}

.footer{
  position:relative;overflow:hidden;border-top:1px solid var(--line);
  background:#061521;min-height:145px;
}
.footer:before{
  content:"";position:absolute;inset:0 68% 0 0;
  background:url('../assets/footer/ubb-building.jpg') left center/cover no-repeat;
  opacity:.82;
}
.footer:after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(6,21,33,.06),rgba(6,21,33,.82) 32%,#061521 52%);
}
.footer-inner{
  position:relative;z-index:2;max-width:var(--max);margin:auto;
  min-height:145px;padding:22px 28px;
  display:grid;grid-template-columns:34% 1fr 1fr;gap:34px;align-items:center;
}
.footer-brand{grid-column:2}
.footer-brand strong{color:var(--cyan);font-size:16px}
.footer-brand p,.footer-links a{font-size:11.5px;color:#aebfcc}
.footer-links{display:grid;grid-template-columns:1fr 1fr;gap:4px 16px}

.lightbox{display:none;position:fixed;inset:0;background:rgba(0,0,0,.9);z-index:2000;align-items:center;justify-content:center;padding:25px}
.lightbox.open{display:flex}
.lightbox img{max-height:90vh;max-width:94vw;border-radius:8px}
.lightbox button{position:absolute;right:20px;top:15px;border:0;background:none;color:white;font-size:34px}
.note{
  border-left:3px solid var(--cyan);
  padding:8px 10px;background:rgba(33,220,255,.04);
  color:#b8cad5;font-size:12px;margin-bottom:10px;
}

@media(max-width:1150px){
  .home-research-grid{grid-template-columns:repeat(3,1fr)}
  .home-two{grid-template-columns:1fr}
  .nav{gap:15px}
  h1{font-size:34px}
}
@media(max-width:900px){
  .header-inner{height:62px;padding:5px 16px}
  .brand img.full-logo{height:52px}
  .mobile-toggle{display:block;margin-left:auto;background:#071827;border:1px solid var(--line);color:white;border-radius:6px;padding:7px 10px}
  .nav{display:none;position:absolute;left:0;right:0;top:62px;background:#061521;padding:14px 16px;flex-direction:column;align-items:flex-start;border-bottom:1px solid var(--line)}
  .nav.open{display:flex}
  .lang{margin-left:0}
  .hero .hero-art{inset:0;opacity:.32}
  .hero:after{background:rgba(6,21,33,.78)}
  .hero-inner{grid-template-columns:1fr;padding:24px 16px}
  .hero-lockup img{width:95px;height:95px}
  h1{font-size:30px}
  .container{padding-left:16px;padding-right:16px}
  .content-grid{grid-template-columns:1fr}
  .side-title{position:static}
  .people-list{grid-template-columns:1fr}
  .person:nth-child(odd),.person:nth-child(even){padding-left:0;padding-right:0;border-left:0}
  .project-full{grid-template-columns:1fr}
  .activity-item{grid-template-columns:1fr;gap:4px}
  .news-entry{grid-template-columns:1fr}
  .news-gallery{justify-content:start;grid-template-columns:repeat(auto-fit,104px)}
  .contact-grid{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr;padding-top:85px}
  .footer-brand{grid-column:auto}
  .footer:before{inset:0 0 48% 0}
  .footer:after{background:linear-gradient(180deg,rgba(6,21,33,.12),#061521 58%)}
}
@media(max-width:650px){
  .home-research-grid,.news-grid,.project-grid{grid-template-columns:1fr}
  .section-head{align-items:flex-start;flex-direction:column}
  .hero-lockup{align-items:flex-start}
  .hero-title-block{padding-top:0}
}