:root{
  --ink:#0E1A2B; --ink-2:#2B3A4F; --muted:#5F6B7A; --line:#D9DEE3;
  --paper:#F7F8F6; --card:#FFFFFF; --teal:#176B62; --teal-soft:#DCEFEB; --gold:#B8913A;
  --display:"Spectral",Georgia,serif; --body:"Source Sans 3","Segoe UI",system-ui,sans-serif; --mono:"IBM Plex Mono",ui-monospace,monospace;
  --max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.6}
a{color:var(--teal);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
h1,h2,h3{font-family:var(--display);font-weight:500;line-height:1.15;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(2.2rem,5vw,3.6rem)}
h2{font-size:clamp(1.6rem,3vw,2.2rem)}
h3{font-size:1.25rem}
p{margin:0 0 1em}
.eyebrow{font-family:var(--mono);font-size:.75rem;letter-spacing:.14em;text-transform:uppercase;color:var(--teal);margin-bottom:.8rem}
.muted{color:var(--muted)}
/* header */
header{position:sticky;top:0;z-index:10;background:rgba(247,248,246,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);font-family:var(--display);font-size:1.25rem}
.brand:hover{text-decoration:none}
.brand small{display:block;font-family:var(--mono);font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.nav ul{list-style:none;display:flex;gap:26px;margin:0;padding:0}
.nav ul a{color:var(--ink-2);font-size:.95rem}
.nav ul a.active,.nav ul a:hover{color:var(--teal);text-decoration:none;border-bottom:2px solid var(--teal);padding-bottom:3px}
.menu{display:none;background:none;border:1px solid var(--line);border-radius:6px;padding:6px 10px;font:inherit;cursor:pointer}
@media(max-width:760px){.menu{display:block}.nav ul{display:none;position:absolute;left:0;right:0;top:68px;background:var(--paper);flex-direction:column;gap:0;padding:8px 24px 16px;border-bottom:1px solid var(--line)}.nav ul.open{display:flex}.nav ul li{padding:10px 0}}
/* hero */
.hero{padding:84px 0 64px;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero h1 em{font-style:italic;color:var(--teal)}
.hero p.lead{font-size:1.2rem;color:var(--ink-2);max-width:54ch}
.btn{display:inline-block;padding:12px 22px;border-radius:6px;font-weight:600;border:1px solid var(--teal);color:var(--teal);transition:.2s}
.btn:hover{text-decoration:none;background:var(--teal);color:#fff}
.btn.primary{background:var(--teal);color:#fff}
.btn.primary:hover{background:#105149;border-color:#105149}
.actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
@media(max-width:860px){.hero{grid-template-columns:1fr;padding:56px 0 40px}}
/* shares diagram */
.shares{width:100%;height:auto}
.shares .pkt{animation:travel 6s ease-in-out infinite}
.shares .pkt.d1{animation-delay:0s}.shares .pkt.d2{animation-delay:.4s}.shares .pkt.d3{animation-delay:.8s}
@keyframes travel{0%,15%{offset-distance:0%;opacity:0}25%{opacity:1}70%{opacity:1}85%,100%{offset-distance:100%;opacity:0}}
@media(prefers-reduced-motion:reduce){.shares .pkt{animation:none;offset-distance:55%}}
/* sections */
section{padding:64px 0;border-top:1px solid var(--line)}
.grid{display:grid;gap:24px}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c2{grid-template-columns:repeat(2,1fr)}
@media(max-width:860px){.grid.c3,.grid.c2{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:26px;transition:.2s}
.card:hover{border-color:var(--teal);box-shadow:0 8px 24px rgba(14,26,43,.06)}
.card h3{margin-top:0}
.tag{display:inline-block;font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;background:var(--teal-soft);color:var(--teal);border-radius:4px;padding:3px 8px;margin-right:6px}
.tag.gold{background:#F5EDD8;color:#8A6A22}
.tag.grey{background:#ECEFF2;color:var(--muted)}
.split{display:grid;grid-template-columns:1fr 2fr;gap:40px;align-items:start}
@media(max-width:860px){.split{grid-template-columns:1fr}}
/* stats strip */
.stats{display:flex;gap:48px;flex-wrap:wrap;padding:28px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:48px}
.stats div{font-family:var(--display);font-size:2rem;color:var(--ink)}
.stats div span{display:block;font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
/* publications */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin:0 0 28px}
.filters button{font:inherit;font-size:.9rem;padding:7px 14px;border:1px solid var(--line);background:#fff;border-radius:999px;cursor:pointer;color:var(--ink-2)}
.filters button.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.year{font-family:var(--mono);font-size:.8rem;letter-spacing:.12em;color:var(--muted);margin:32px 0 10px;padding-top:24px;border-top:1px dashed var(--line)}
.pub{display:grid;grid-template-columns:36px 1fr;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.pub .n{font-family:var(--mono);font-size:.8rem;color:var(--muted);padding-top:4px}
.pub .t{font-weight:600;font-size:1.05rem}
.pub .a{color:var(--ink-2)}
.pub .a b{color:var(--ink);font-weight:600}
.pub .a .s{color:var(--teal)}
.pub .v{color:var(--muted);font-size:.95rem}
.pub .links a{font-size:.85rem;margin-right:12px;font-family:var(--mono)}
/* people */
.person{display:flex;gap:18px;align-items:flex-start}
.avatar{width:64px;height:64px;border-radius:50%;background:linear-gradient(135deg,var(--teal-soft),#C9DED9);display:grid;place-items:center;font-family:var(--display);color:var(--teal);font-size:1.3rem;flex:none;object-fit:cover}
.person small{display:block;color:var(--muted)}
/* timeline / news */
.news li{display:grid;grid-template-columns:120px 1fr;gap:20px;padding:14px 0;border-bottom:1px solid var(--line);list-style:none}
.news ul{padding:0;margin:0}
.news time{font-family:var(--mono);font-size:.78rem;color:var(--muted);padding-top:4px}
/* footer */
footer{padding:48px 0 40px;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px}
footer a{color:var(--ink-2)}
@media(max-width:760px){footer .cols{grid-template-columns:1fr}}
.callout{background:var(--ink);color:#E9EEF2;border-radius:12px;padding:40px;display:grid;grid-template-columns:2fr 1fr;gap:32px;align-items:center}
.callout h2{color:#fff}.callout a.btn{border-color:#fff;color:#fff}.callout a.btn:hover{background:#fff;color:var(--ink)}
@media(max-width:760px){.callout{grid-template-columns:1fr;padding:28px}}
.reveal{opacity:0;transform:translateY(12px);transition:.6s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}