:root{
  --bg:#F7F6F2; --surface:#FFFFFF; --soft:#EEF1F4; --soft2:#E6EAEE; --line:#E3E1DB; --line2:#CBD2D9;
  --ink:#16202A; --text:#3A4350; --muted:#4B5563; --accent:#1F5A8A; --link:#1B4F7A; --gold:#B8862E;
  --feature:#EEF3F8; --feature-line:#D5E0EA; --dark:#0C1116; --dark-muted:#A9B4C0;
  --shadow:0 10px 28px rgba(22,32,42,.07); color-scheme:light;
  --serif:"Newsreader",Georgia,serif; --sans:"Instrument Sans",system-ui,-apple-system,sans-serif; --mono:"JetBrains Mono",ui-monospace,monospace;
}
:root[data-theme="dark"]{
  --bg:#0F151B; --surface:#16202A; --soft:#1C2833; --soft2:#22303C; --line:#26323E; --line2:#34424F;
  --ink:#EEF1F4; --text:#C9D1D9; --muted:#A9B4C0; --accent:#6FA8DC; --link:#8FC0EA; --gold:#E0C07A;
  --feature:#172533; --feature-line:#2A3B4C; --dark:#080C10; --shadow:0 10px 28px rgba(0,0,0,.35); color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);line-height:1.55;-webkit-font-smoothing:antialiased;transition:background .3s,color .3s}
img,svg,video{max-width:100%}
a{color:var(--link)} a:hover{color:var(--accent)}
.wrap{max-width:1200px;margin:0 auto;padding:0 40px}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:16px;z-index:100;background:var(--surface);padding:8px 12px}
.logo-dark{display:none}
:root[data-theme="dark"] .logo-light{display:none}
:root[data-theme="dark"] .logo-dark{display:block}

/* header */
header.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.top-in{display:flex;align-items:center;gap:24px;padding:14px 40px;max-width:1200px;margin:0 auto}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.brand img{height:42px;width:auto}
.brand b{display:block;font-family:var(--serif);font-weight:500;font-size:17px;line-height:1.15}
.brand small{display:block;font-size:12px;color:var(--muted)}
nav.main{display:flex;gap:2px;margin-left:auto}
nav.main a{font-size:15px;font-weight:500;padding:10px 12px;border-radius:8px;color:var(--muted);text-decoration:none;transition:background .2s,color .2s}
nav.main a:hover{background:var(--soft);color:var(--ink)}
nav.main a[aria-current="page"]{color:var(--ink);background:var(--soft2);box-shadow:inset 0 -2px 0 var(--accent)}
.tools{display:flex;gap:8px}
.pill{font:500 12px var(--mono);padding:8px 12px;border:1px solid var(--line2);border-radius:999px;background:transparent;color:var(--ink);cursor:pointer;min-height:36px}
.pill:hover{background:var(--soft)}
.menu-btn{display:none}

/* type */
.eyebrow{font:500 12px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
h1,h2,h3{font-family:var(--serif);font-weight:500;margin:0;color:var(--ink)}
.h1{font-size:clamp(36px,5vw,58px);line-height:1.06;letter-spacing:-.01em}
.h2{font-size:clamp(28px,3.2vw,38px);line-height:1.15}
.lede{font-size:18px;color:var(--text);max-width:60ch;margin:0}
p{margin:0}

/* pages */
.page{display:none}
.page.active{display:block;animation:fade .5s ease both}
.page-head{padding:72px 0 28px;display:flex;flex-direction:column;gap:14px}
section.block{padding:40px 0 88px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font:500 15px var(--sans);padding:13px 22px;border-radius:10px;text-decoration:none;cursor:pointer;border:1px solid var(--ink);transition:transform .2s,background .2s}
.btn:hover{transform:translateY(-1px)}
.btn.solid{background:var(--ink);color:var(--bg)} .btn.solid:hover{color:var(--bg)}
.btn.ghost{background:transparent;color:var(--ink)}
.row{display:flex;gap:12px;flex-wrap:wrap}

/* hero */
.hero{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:56px;align-items:center;padding:64px 0 56px}
.hero-text{display:flex;flex-direction:column;gap:22px}
.mosaic{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:0}
.tile{position:relative;height:224px;border-radius:16px;overflow:hidden;background:var(--surface);border:1px solid var(--line)}
.tile.dark{background:var(--dark);border-color:var(--dark)}
.tile.soft{background:var(--soft);border-color:var(--soft)}
.tile svg{width:100%;height:100%;display:block}
.tile span{position:absolute;left:14px;bottom:10px;font:11px var(--mono);color:var(--muted)}
.tile.dark span{color:var(--dark-muted)}

.stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--soft)}
.stats .wrap{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;padding-top:28px;padding-bottom:28px}
.stat b{display:block;font:500 34px var(--serif)} .stat span{font-size:14px;color:var(--muted)}

/* cards */
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:26px;display:flex;flex-direction:column;gap:12px;transition:transform .35s cubic-bezier(.2,.7,.2,1),box-shadow .35s}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.card .num{font:12px var(--mono);color:var(--accent)}
.card h3{font-size:24px;line-height:1.2}
.card p{font-size:15px;color:var(--text)}
.card .ill{border-radius:12px;background:var(--soft);height:150px;overflow:hidden}
.card .ill.dark{background:var(--dark)}
.card .ill svg{width:100%;height:100%;display:block}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-size:13px;padding:6px 12px;border-radius:999px;background:var(--soft);color:var(--ink)}
.section-head{display:flex;align-items:flex-end;gap:24px;margin-bottom:28px}
.section-head .more{margin-left:auto;font-weight:500;text-decoration:none}

/* news */
.news{display:flex;flex-direction:column}
.news article{display:grid;grid-template-columns:96px minmax(0,1fr);gap:20px;padding:18px 0;border-bottom:1px solid var(--line)}
.news time{font:12px var(--mono);color:var(--muted);padding-top:3px;text-transform:uppercase}
.news h3{font:600 17px var(--sans);margin-bottom:4px}
.news p{font-size:14px;color:var(--muted)}
.feature{background:var(--feature);border:1px solid var(--feature-line);border-radius:20px;padding:34px;display:flex;flex-direction:column;gap:14px;align-self:start}
.feature h3{font-size:26px;line-height:1.25}

/* videos strip */
.vstrip{background:var(--soft);border-top:1px solid var(--line)}
.vgrid{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));gap:12px}
.vthumb{position:relative;aspect-ratio:9/16;border-radius:14px;overflow:hidden;background:var(--soft2);border:0;padding:0;cursor:pointer;transition:transform .3s}
.vthumb:hover{transform:translateY(-3px)}
.vthumb img{width:100%;height:100%;object-fit:cover;display:block}
.play{position:absolute;left:10px;bottom:10px;width:36px;height:36px;border-radius:999px;background:rgba(22,32,42,.85);display:flex;align-items:center;justify-content:center}
.play.center{left:50%;top:50%;margin:-22px 0 0 -22px;width:44px;height:44px}

/* publications */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.filters button{font:500 14px var(--sans);padding:8px 16px;border-radius:999px;border:1px solid var(--line2);background:transparent;color:var(--ink);cursor:pointer;min-height:40px}
.filters button[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.pub{display:grid;grid-template-columns:72px minmax(0,1fr) 124px;gap:28px;padding:28px 0;border-top:1px solid var(--line);align-items:start;animation:rise .6s cubic-bezier(.2,.7,.2,1) both}
.pub .yr{font:500 28px var(--serif);color:var(--accent)}
.pub h2{font-size:21px;line-height:1.3}
.pub h2 a{color:var(--ink);text-decoration:none} .pub h2 a:hover{color:var(--link);text-decoration:underline}
.pub .meta{font-size:14px;color:var(--muted);margin-top:8px}
.pub .acts{display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin-top:12px;font-size:14px;font-weight:500}
.pub .doi{font:12px var(--mono);color:var(--muted)}
.vbtn{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;background:var(--ink);color:var(--bg);font:500 13px var(--sans);border:0;cursor:pointer;min-height:36px}
.pub .vthumb{width:124px}

/* team */
.pi{display:grid;grid-template-columns:260px minmax(0,1fr);gap:44px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:34px}
.avatar{width:260px;height:300px;border-radius:16px;background:var(--soft2);display:flex;align-items:center;justify-content:center}
.avatar svg{width:120px;opacity:.5}
.links{display:flex;flex-wrap:wrap;gap:10px}
.links a{font-size:14px;padding:8px 14px;border:1px solid var(--line2);border-radius:999px;text-decoration:none;color:var(--ink)}
.links a:hover{background:var(--soft)}
.note{border:1px dashed var(--line2);border-radius:18px;padding:28px;color:var(--muted)}

/* contact */
.contact{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:48px}
.info{display:flex;flex-direction:column;gap:14px;padding:26px;border:1px solid var(--line);border-radius:16px;background:var(--surface)}
.info dt{font:12px var(--mono);color:var(--muted);text-transform:uppercase}
.info dd{margin:4px 0 0}
.map{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;min-height:280px;border-radius:16px;border:1px solid var(--line);background:var(--soft);color:var(--ink);text-decoration:none;font-weight:500;transition:background .2s}
.mapframe{border:0;width:100%;height:340px;border-radius:16px;background:var(--soft)}
:root[data-theme="dark"] .mapframe{filter:invert(.9) hue-rotate(180deg) saturate(.6)}
.map:hover{background:var(--soft2);color:var(--ink)}

/* footer */
footer{background:#16202A;color:#CBD2D9}
:root[data-theme="dark"] footer{background:#080C10}
footer .wrap{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px;padding-top:48px;padding-bottom:48px;font-size:14px}
footer .lbl{font:11px var(--mono);color:#9AA3AE;display:block;margin-bottom:6px}
footer a{color:#E0C07A} footer a:hover{color:#F2D69A}
footer img{width:230px}

/* modal */
dialog.vmodal{border:0;padding:0;background:transparent;max-width:none;max-height:none;width:100%;height:100%}
dialog.vmodal::backdrop{background:rgba(8,12,16,.88)}
.vm-in{height:100%;display:flex;align-items:center;justify-content:center;gap:36px;padding:24px;color:#F7F6F2}
.vm-in video{height:min(84vh,760px);aspect-ratio:9/16;border-radius:16px;background:#000}
.vm-side{max-width:360px;display:flex;flex-direction:column;gap:14px}
.vm-side h2{color:#F7F6F2;font-size:24px;line-height:1.25}
.vm-side .eyebrow{color:#9EC3E6}
.vm-side a{color:#E0C07A;font-weight:500}
.vm-close{align-self:flex-start;margin-top:10px;padding:10px 18px;border:1px solid #9AA3AE;border-radius:999px;background:transparent;color:#F7F6F2;font:500 14px var(--sans);cursor:pointer}

/* animation */
@keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
@keyframes fade{from{opacity:0}to{opacity:1}}
@keyframes draw{from{stroke-dashoffset:600}to{stroke-dashoffset:0}}
@keyframes driftA{0%,100%{transform:translate(0,0)}25%{transform:translate(18px,-8px)}50%{transform:translate(32px,6px)}75%{transform:translate(14px,20px)}}
@keyframes driftB{0%,100%{transform:translate(0,0)}33%{transform:translate(-20px,12px)}66%{transform:translate(-6px,-18px)}}
@keyframes driftC{0%,100%{transform:translate(0,0)}50%{transform:translate(24px,-18px)}}
@keyframes pulse{0%,100%{opacity:.55}50%{opacity:1}}
@keyframes indent{0%,100%{transform:translateY(0)}45%,55%{transform:translateY(18px)}}
@keyframes scanrow{from{transform:translateY(0)}to{transform:translateY(156px)}}
@keyframes scan{from{transform:translateX(-40px)}to{transform:translateX(460px)}}
@keyframes spin{to{transform:rotate(360deg)}}
.reveal.in{animation:rise .8s cubic-bezier(.2,.7,.2,1) both}
.traj{stroke-dasharray:600;animation:draw 9s ease-out infinite alternate}
.cellA{animation:driftA 14s ease-in-out infinite}.cellB{animation:driftB 11s ease-in-out infinite}.cellC{animation:driftC 9s ease-in-out infinite}
.glow{animation:pulse 3.5s ease-in-out infinite}
.tip{animation:indent 4.5s ease-in-out infinite}
.scanrow{animation:scanrow 7s ease-in-out infinite alternate}
.scanline{animation:scan 8s linear infinite}
.gear{transform-origin:60px 60px;animation:spin 40s linear infinite}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* responsive */
@media (max-width:1080px){
  .vgrid{grid-template-columns:repeat(5,minmax(0,1fr))}
  nav.main a{padding:10px 8px;font-size:14px}
  .brand .txt{display:none}
}
@media (max-width:860px){
  .wrap,.top-in{padding-left:16px;padding-right:16px}
  .menu-btn{display:inline-flex}
  nav.main{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;background:var(--bg);border-bottom:1px solid var(--line);padding:8px 16px 16px}
  nav.main.open{display:flex}
  .tools{margin-left:auto}
  .hero,.g2,.g3,.contact,.pi{grid-template-columns:minmax(0,1fr)}
  .hero{padding-top:36px;gap:32px}
  .stats .wrap{grid-template-columns:repeat(2,minmax(0,1fr))}
  .vgrid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .pub{grid-template-columns:minmax(0,1fr);gap:12px}
  .pub .vthumb{width:110px}
  .avatar{width:100%;height:220px}
  footer .wrap{grid-template-columns:minmax(0,1fr)}
  .vm-in{flex-direction:column;gap:16px}
  .vm-in video{height:min(66vh,640px)}
  .tile{height:170px}
  .page-head{padding-top:40px}
}