*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#FAFAF8;--text:#1A1A1A;--text-sec:#6B6B6B;
  --accent:#1D4E6B;--accent-light:#E8F0F4;--border:#E2E2DE;
  --serif:'DM Serif Display',Georgia,serif;
  --sans:'Inter',system-ui,sans-serif;
  --mono:'DM Mono',monospace;
}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
body{background:var(--bg);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.7;font-weight:400}

/* NAV */
nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(250,250,248,0.93);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);padding:0 2.5rem;display:flex;align-items:center;justify-content:space-between;height:60px}
.nav-logo{font-family:var(--serif);font-size:1.05rem;color:var(--accent);text-decoration:none;letter-spacing:-0.01em;flex-shrink:0}
.nav-links{display:flex;gap:1.75rem;list-style:none}
.nav-links a{font-size:13px;color:var(--text-sec);text-decoration:none;letter-spacing:0.03em;font-weight:500;transition:color 0.2s}
.nav-links a:hover,.nav-links a.active{color:var(--accent)}
.nav-hamburger{display:none;flex-direction:column;gap:4px;background:none;border:none;cursor:pointer;padding:4px}
.nav-hamburger span{display:block;width:22px;height:2px;background:var(--text-sec);border-radius:2px;transition:all 0.2s}
.mobile-menu{display:none;position:fixed;top:60px;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--border);z-index:99;padding:1rem 2.5rem 1.5rem}
.mobile-menu.open{display:block}
.mobile-menu ul{list-style:none;display:flex;flex-direction:column;gap:1rem}
.mobile-menu a{font-size:15px;color:var(--text);text-decoration:none;font-weight:500}

/* SECTIONS */
section{max-width:1080px;margin:0 auto;padding:5rem 2.5rem}

/* GAG DIVIDER */
.gag-divider{width:100%;max-width:1080px;margin:0 auto;padding:0 2.5rem;opacity:0.18}

/* SECTION HEADERS */
.section-label{font-family:var(--mono);font-size:11px;color:var(--accent);letter-spacing:0.12em;text-transform:uppercase;margin-bottom:1rem}
.section-title{font-family:var(--serif);font-size:clamp(1.8rem,3vw,2.6rem);line-height:1.2;letter-spacing:-0.02em;margin-bottom:1rem;max-width:640px}
.section-intro{color:var(--text-sec);max-width:680px;margin-bottom:3rem;font-size:0.975rem;line-height:1.8}

/* FOOTER */
footer{border-top:1px solid var(--border);padding:2rem 2.5rem;max-width:1080px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}
footer p{font-size:12px;color:var(--text-sec);font-family:var(--mono)}
.footer-logos{display:flex;align-items:center;gap:1.5rem;flex-wrap:wrap}
.funder-badge{font-size:11px;font-family:var(--mono);color:var(--text-sec);border:1px solid var(--border);padding:3px 10px;border-radius:2px}

/* CARDS */
.research-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5px;background:var(--border);border:1.5px solid var(--border)}
.research-card{background:var(--bg);padding:2rem 1.75rem;transition:background 0.2s}
.research-card:hover{background:var(--accent-light)}
.research-num{font-family:var(--mono);font-size:11px;color:var(--accent);opacity:0.6;margin-bottom:1.25rem;display:block}
.research-card h3{font-family:var(--serif);font-size:1.2rem;line-height:1.3;margin-bottom:0.75rem;letter-spacing:-0.01em}
.research-card p{font-size:0.875rem;color:var(--text-sec);line-height:1.75}
.highlight-stat{font-family:var(--serif);font-size:2rem;color:var(--accent);line-height:1;margin-bottom:0.25rem}
.highlight-label{font-size:0.8rem;font-family:var(--mono);color:var(--text-sec);letter-spacing:0.05em}

/* PEOPLE */
.pi-grid{display:grid;grid-template-columns:1fr 2fr;gap:4rem;align-items:start}
.pi-card{background:var(--accent-light);border:1px solid var(--border);padding:2rem 1.75rem}
.pi-avatar{width:80px;height:80px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:1.4rem;color:#fff;margin-bottom:1.25rem}
.pi-name{font-family:var(--serif);font-size:1.3rem;margin-bottom:0.25rem;letter-spacing:-0.01em}
.pi-title{font-size:0.8rem;color:var(--text-sec);font-family:var(--mono);line-height:1.7}
.pi-fellowships{margin-top:1.25rem;display:flex;flex-direction:column;gap:0.5rem}
.fellowship-badge{font-size:11px;font-family:var(--mono);color:var(--accent);background:white;border:1px solid var(--border);padding:4px 10px;display:inline-block;width:fit-content}
.pi-bio{font-size:0.925rem;color:var(--text-sec);line-height:1.85}
.pi-bio p{margin-bottom:1rem}
.pi-bio p:last-child{margin-bottom:0}
.pi-links{margin-top:1.5rem;display:flex;gap:1rem;flex-wrap:wrap}
.pi-link-badge{font-size:11px;font-family:var(--mono);color:var(--accent);text-decoration:none;border:1px solid var(--accent);padding:4px 10px;border-radius:2px;transition:background 0.2s}
.pi-link-badge:hover{background:var(--accent-light)}
.team-section-label{font-family:var(--mono);font-size:11px;color:var(--text-sec);letter-spacing:0.1em;text-transform:uppercase;margin:3rem 0 1.5rem;padding-top:2rem;border-top:1px solid var(--border)}
.people-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:2rem}
.person{display:flex;flex-direction:column;gap:0.6rem}
.person-avatar{width:56px;height:56px;border-radius:50%;background:var(--accent-light);display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:0.7rem;color:var(--accent);font-weight:500;flex-shrink:0;border:1px solid var(--border)}
.person-name{font-weight:500;font-size:0.9rem}
.person-role{font-size:0.78rem;color:var(--text-sec);line-height:1.5}
.person-bio{font-size:0.78rem;color:var(--text-sec);line-height:1.6;margin-top:0.2rem}

/* NEWS */
.news-list{display:flex;flex-direction:column}
.news-item{display:grid;grid-template-columns:7rem 1fr;gap:1.5rem;padding:1.75rem 0;border-bottom:1px solid var(--border)}
.news-date{font-family:var(--mono);font-size:11px;color:var(--text-sec);padding-top:4px;line-height:1.6}
.news-title{font-weight:500;font-size:0.95rem;margin-bottom:0.35rem}
.news-body{font-size:0.875rem;color:var(--text-sec);line-height:1.7}
.featured-paper{border:1px solid var(--border);margin-bottom:0}
.featured-paper-header{padding:1.75rem;cursor:pointer;transition:background 0.2s;border-bottom:1px solid transparent}
.featured-paper-header:hover{background:var(--accent-light)}
.featured-paper-body{display:none;padding:1.75rem;background:var(--accent-light)}
.featured-paper-body.open{display:block}
.featured-paper figure{margin:0 0 1.5rem}
.featured-paper figure img{width:100%;display:block;border:1px solid var(--border);border-radius:4px;background:white}
.featured-paper figcaption{margin-top:0.6rem;font-size:0.78rem;color:var(--text-sec);font-family:var(--mono);line-height:1.6}
.abstract-label{font-family:var(--mono);font-size:11px;color:var(--accent);letter-spacing:0.1em;text-transform:uppercase;margin-bottom:0.75rem}
.abstract-text{font-size:0.875rem;color:var(--text-sec);line-height:1.8;margin-bottom:1.25rem}
.toggle-btn{font-size:12px;font-family:var(--mono);color:var(--accent);background:none;border:1px solid var(--border);padding:4px 12px;cursor:pointer;float:right;margin-top:4px}
.toggle-btn:hover{background:var(--accent-light)}
.pub-preprint{font-size:0.75rem;font-family:var(--mono);color:#8B6914;background:#FFF8E7;border:1px solid #E8D9A0;padding:2px 7px;margin-left:0.5rem;vertical-align:middle}

/* JOIN */
.positions{display:flex;flex-direction:column;gap:1px;background:var(--border);border:1px solid var(--border);margin-bottom:2.5rem}
.position{background:var(--bg);padding:1.5rem 1.75rem;display:flex;justify-content:space-between;align-items:start;gap:1rem;flex-wrap:wrap;transition:background 0.2s}
.position:hover{background:var(--accent-light)}
.position-title{font-weight:500;font-size:0.95rem;margin-bottom:0.25rem}
.position-detail{font-size:0.825rem;color:var(--text-sec)}
.badge{font-family:var(--mono);font-size:11px;background:var(--accent-light);color:var(--accent);padding:3px 10px;white-space:nowrap;flex-shrink:0;border:1px solid var(--border)}
.join-text{font-size:0.925rem;color:var(--text-sec);max-width:580px;line-height:1.8}

/* CONTACT */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:4rem}
.contact-block h3{font-family:var(--serif);font-size:1.1rem;margin-bottom:1rem}
.contact-block p,.contact-block address{font-size:0.9rem;color:var(--text-sec);line-height:1.9;font-style:normal}
.contact-block a{color:var(--accent);text-decoration:none;border-bottom:1px solid transparent;transition:border-color 0.2s}
.contact-block a:hover{border-color:var(--accent)}
.scholar-link{margin-top:2rem;font-size:0.875rem}
.scholar-link a{color:var(--accent);text-decoration:none;border-bottom:1px solid var(--accent);padding-bottom:1px}

/* ALUMNI */
.alumni-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1rem}
.alumni-item{padding:1rem 1.25rem;border:0.5px solid var(--border);border-radius:4px}
.alumni-name{font-weight:500;font-size:0.9rem;margin-bottom:0.2rem}
.alumni-detail{font-size:0.78rem;color:var(--text-sec);line-height:1.5}
.alumni-now{font-size:0.78rem;color:var(--accent);font-family:var(--mono);margin-top:0.35rem}
.alumni-now:empty{display:none}

/* RESPONSIVE */
@media(max-width:760px){
  nav{padding:0 1.25rem}
  .nav-links{display:none}
  .nav-hamburger{display:flex}
  section{padding:3.5rem 1.25rem}
  .pi-grid{grid-template-columns:1fr;gap:2rem}
  .contact-grid{grid-template-columns:1fr;gap:2rem}
  .news-item{grid-template-columns:1fr;gap:0.5rem}
  footer{padding:2rem 1.25rem}
  .gag-divider{padding:0 1.25rem}
  .featured-paper-header{display:block!important}
  .featured-paper-header img{width:100%!important;margin:1rem 0}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* KEYBOARD FOCUS */
a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}