:root{
  --bg:#fbfaf7; --surface:#ffffff; --ink:#1d241f; --muted:#5d675f; --line:#e4e2db;
  --accent:#1f8a5b; --accent-ink:#ffffff; --accent-soft:#e6f3ec; --deep:#12271c; --red:#c23b3b;
  --serif:"Fraunces",Georgia,"Times New Roman",serif; --sans:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.2;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.4vw,3.1rem)}
h2{font-size:clamp(1.5rem,2.6vw,2rem)}
h3{font-size:1.2rem}
p{margin:0 0 1em}
.eyebrow{font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);font-weight:600}

/* header */
.site-head{padding:22px 0 0;background:var(--bg)}
.brand{display:flex;justify-content:center;align-items:center;gap:12px;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand svg{width:46px;height:46px}
.brand-name{font-family:var(--serif);font-size:1.7rem;font-weight:600;color:#2e4a37;letter-spacing:-.02em}
.brand-name span{color:var(--accent)}
.brand-sub{display:block;font-family:var(--sans);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:500}
.nav{display:flex;justify-content:center;flex-wrap:wrap;gap:4px 26px;margin-top:18px;padding:12px 0;border-bottom:1px solid var(--line);position:relative}
.nav a{font-family:var(--serif);font-size:.92rem;text-transform:uppercase;letter-spacing:.04em;color:var(--ink);padding:4px 0;border-top:2px solid transparent}
.nav a.on{border-top-color:var(--ink)}
.nav a:hover{text-decoration:none;color:var(--accent)}
.lang{position:absolute;right:0;top:50%;transform:translateY(-50%);display:flex;gap:2px;font-family:var(--sans)!important}
.lang a,.lang span{font-family:var(--sans)!important;font-size:.78rem!important;letter-spacing:.06em;padding:3px 8px!important;border:1px solid var(--line)!important;border-radius:999px}
.lang span{background:var(--ink);color:#fff;border-color:var(--ink)!important}
.menu-btn{display:none}

/* hero */
.hero{position:relative;margin:22px 0 0;border-radius:14px;overflow:hidden;min-height:440px;color:#fff;
  background:radial-gradient(1200px 500px at 85% 20%,rgba(120,200,140,.35),transparent 60%),
  radial-gradient(800px 400px at 10% 110%,rgba(200,60,60,.22),transparent 60%),
  linear-gradient(135deg,#0f2418 0%,#1d3d2a 45%,#26503a 100%)}
.hero.has-photo{background-size:cover;background-position:center}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,20,13,.78) 0%,rgba(8,20,13,.35) 65%,rgba(8,20,13,.1) 100%)}
.hero-spec{position:absolute;right:-20px;bottom:0;width:62%;opacity:.55;z-index:0}
.hero-inner{position:relative;z-index:1;padding:46px 40px;max-width:640px}
.hero .eyebrow{color:#9fe3bb}
.hero h1{color:#fff}
.hero p{color:rgba(255,255,255,.86);font-size:1.05rem;max-width:520px}
.btns{display:flex;gap:12px;flex-wrap:wrap;margin:22px 0}
.btn{display:inline-block;padding:10px 18px;border-radius:6px;font-size:.9rem;font-weight:500;border:1px solid transparent}
.btn:hover{text-decoration:none;filter:brightness(1.08)}
.btn.primary{background:var(--accent);color:#fff}
.btn.ghost{border-color:rgba(255,255,255,.6);color:#fff}
.btn.line{border-color:var(--line);color:var(--ink);background:var(--surface)}
.stats{display:flex;gap:10px;flex-wrap:wrap;margin-top:8px;padding-top:22px;border-top:1px solid rgba(255,255,255,.18)}
.stat{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);border-radius:8px;padding:10px 16px;min-width:120px}
.stat b{display:block;font-family:var(--serif);font-size:1.35rem;font-weight:500}
.stat small{font-size:.75rem;color:rgba(255,255,255,.75)}

/* sections */
section.block{padding:56px 0 8px}
.sec-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;margin-bottom:20px}
.sec-head a{font-size:.85rem;white-space:nowrap}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:18px;display:flex;flex-direction:column;gap:8px}
.card .venue{font-size:.75rem;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.card h3{font-size:1.02rem;margin:0}
.card h3 a{color:var(--ink)}
.two{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:start}
.themes{display:grid;gap:14px}
.theme{display:flex;gap:14px;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:16px}
.theme .ico{flex:0 0 40px;height:40px;border-radius:8px;background:var(--accent-soft);display:grid;place-items:center;color:var(--accent)}
.theme h3{font-size:1.02rem;margin:0 0 4px}
.theme p{margin:0;color:var(--muted);font-size:.93rem}
.news-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.news-list li{display:grid;grid-template-columns:160px 1fr;gap:16px;padding:16px 0;border-bottom:1px solid var(--line)}
.news-list time{font-size:.85rem;color:var(--muted)}
.join{margin:56px 0;background:var(--deep);color:#fff;border-radius:14px;padding:36px 40px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.join h2{color:#fff;margin:0 0 6px}
.join p{margin:0;color:rgba(255,255,255,.8)}

/* inner pages */
.page-head{padding:44px 0 10px}
.page-head p{color:var(--muted);max-width:720px;font-size:1.05rem}
.prose{max-width:760px}
.research-item{display:grid;grid-template-columns:280px 1fr;gap:28px;padding:30px 0;border-bottom:1px solid var(--line)}
.research-item:last-child{border-bottom:0}
.r-visual{border-radius:10px;min-height:170px;background:linear-gradient(135deg,#1d3d2a,#2f6b49);position:relative;overflow:hidden}
.r-visual svg{position:absolute;inset:0;width:100%;height:100%}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.tag{font-size:.75rem;background:var(--accent-soft);color:#1c6a47;padding:3px 10px;border-radius:999px}
.team-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:18px}
.person{background:var(--surface);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.avatar{aspect-ratio:1/1;background:linear-gradient(135deg,#dfece3,#c5dccd);display:grid;place-items:center;font-family:var(--serif);font-size:2.4rem;color:#2e5a40}
.avatar img{width:100%;height:100%;object-fit:cover}
.person .info{padding:14px 16px}
.person h3{font-size:1.05rem;margin:0}
.person .role{font-size:.85rem;color:var(--accent);margin:2px 0 6px}
.person p{font-size:.88rem;color:var(--muted);margin:0 0 6px}
.pi{display:grid;grid-template-columns:260px 1fr;gap:32px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:24px;margin-bottom:34px}
.pi .avatar{border-radius:10px}
.group-title{margin:34px 0 14px;font-size:1.25rem}
.pubfilter{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0 18px}
.pubfilter input{flex:1;min-width:220px;padding:10px 14px;border:1px solid var(--line);border-radius:8px;font:inherit;background:var(--surface)}
.chip{border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:8px 14px;font:inherit;font-size:.85rem;cursor:pointer;color:var(--ink)}
.chip.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.year{font-family:var(--serif);font-size:1.4rem;margin:28px 0 8px;color:var(--muted)}
.pub{padding:12px 0;border-bottom:1px solid var(--line)}
.pub a.t{color:var(--ink);font-weight:500}
.pub a.t:hover{color:var(--accent)}
.pub .a{font-size:.88rem;color:var(--muted)}
.pub .v{font-size:.88rem;font-style:italic}
.metrics{display:flex;gap:12px;flex-wrap:wrap;margin:6px 0 10px}
.metric{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:12px 18px}
.metric b{font-family:var(--serif);font-size:1.5rem;font-weight:500;display:block}
.metric small{color:var(--muted);font-size:.78rem}
.proj{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:22px 24px;margin-bottom:16px}
.proj .meta{font-size:.82rem;color:var(--muted);margin-bottom:6px}
.infra{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px;margin-top:10px}
.infra div{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:14px 16px;font-size:.92rem}
.infra b{display:block;font-family:var(--serif);font-weight:500;font-size:1rem}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.map{border:0;width:100%;min-height:340px;border-radius:12px}
.note{background:#fff8e6;border:1px dashed #e0b84a;border-radius:8px;padding:10px 14px;font-size:.85rem;color:#6b5312;margin:10px 0}

/* footer */
footer{margin-top:60px;border-top:1px solid var(--line);padding:30px 0 40px;font-size:.88rem;color:var(--muted)}
.foot{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.foot a{color:var(--muted)}

@media (max-width:860px){
  .two,.research-item,.pi,.contact-grid{grid-template-columns:1fr}
  .news-list li{grid-template-columns:1fr;gap:2px}
  .hero-inner{padding:32px 22px}
  .join{padding:28px 22px}
  .lang{position:static;transform:none;justify-content:center;width:100%;margin-top:6px}
}
@media (max-width:640px){
  .nav{gap:2px 16px}
  .nav a{font-size:.82rem}
  .hero{min-height:0}
  .hero-spec{width:110%;opacity:.3}
}

/* photos */
.hero.has-photo{background-size:cover;background-position:center 60%}
.hero.has-photo .hero-spec{opacity:.35}
.r-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.pi .avatar{aspect-ratio:4/5}
.pi .avatar img{width:100%;height:100%;object-fit:cover;object-position:center 20%;border-radius:10px}
.photo-wide{margin:6px 0 26px}
.photo-wide img{width:100%;max-height:440px;object-fit:cover;border-radius:12px}
.photo-wide figcaption{font-size:.82rem;color:var(--muted);margin-top:6px}
.photo-wide img{object-position:center bottom}