:root{
  --navy:#102030; --navy-deep:#0b1826; --panel:#16273c; --panel-2:#1b2f47;
  --line:#2a3e58; --line-soft:#1f3047;
  --ink:#e9eff6; --muted:#9fb2c6; --muted-2:#7e93aa;
  --blue:#7fb0dc; --sage:#a6c290; --coral:#ef7459; --coral-soft:#e8674f;
  --grad:linear-gradient(100deg,#6f93c4 0%,#7fb0dc 38%,#a6c290 100%);
  --serif:"Cormorant Garamond",Georgia,serif;
  --sans:"Inter",system-ui,-apple-system,sans-serif;
  --maxw:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--navy);color:var(--ink);font-family:var(--sans);
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.eyebrow{font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--blue);
  font-weight:600;margin:0 0 14px}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.08;margin:0}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* nav */
header{position:sticky;top:0;z-index:50;background:rgba(11,24,38,.82);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line-soft)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--serif);font-weight:600}
.brand .mark{display:inline-flex;width:38px;height:38px;flex:none}
.brand .mark img{width:100%;height:100%;object-fit:contain}
.brand .mark{display:inline-flex;width:30px;height:30px}
.navlinks{display:flex;gap:30px;align-items:center}
.navlinks a{font-size:14px;color:var(--muted);font-weight:500;letter-spacing:.01em;
  padding:6px 0;border-bottom:1px solid transparent;transition:color .18s,border-color .18s}
.navlinks a:hover{color:var(--ink)}
.navlinks a.primary{color:var(--ink)}
.navlinks a.primary:hover{border-color:var(--sage)}
.menu-btn{display:none;background:none;border:1px solid var(--line);color:var(--ink);
  border-radius:8px;padding:8px 11px;font-size:18px;line-height:1;cursor:pointer}

/* hero */
.hero{position:relative;overflow:hidden;background:var(--navy);border-bottom:1px solid var(--line-soft)}
.hero::before{content:"";position:absolute;inset:0;
  background:radial-gradient(1100px 520px at 78% -10%,rgba(127,176,220,.16),transparent 60%),
             radial-gradient(900px 480px at 10% 120%,rgba(166,194,144,.12),transparent 60%);
  pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:54px;
  align-items:center;padding:84px 0 92px}
.hero h1{font-size:clamp(38px,5.4vw,64px);letter-spacing:.005em}
.hero .lede{color:var(--muted);font-size:19px;max-width:46ch;margin:22px 0 34px}
.cta-row{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:15px;
  padding:13px 22px;border-radius:10px;border:1px solid transparent;cursor:pointer;
  transition:transform .15s,background .2s,border-color .2s}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--grad);color:#0b1826}
.btn-ghost{border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--blue)}
.hero-frame{position:relative;justify-self:center;width:min(480px,96%);aspect-ratio:1/1;
  border-radius:18px;overflow:hidden;border:none;
  background:transparent;box-shadow:none}
  .hero-frame img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain}
  .hero-note{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
    text-align:center;padding:26px;color:var(--muted-2);font-size:13.5px;line-height:1.6;letter-spacing:.02em}

/* credibility strip */
.strip{border-bottom:1px solid var(--line-soft);background:var(--navy-deep)}
.strip .wrap{display:flex;flex-wrap:wrap;gap:34px;justify-content:space-between;
  padding:20px 28px}
.strip .item{font-size:13.5px;color:var(--muted);letter-spacing:.02em}
.strip .item b{color:var(--ink);font-weight:600}

/* sections */
section.block{padding:88px 0;border-bottom:1px solid var(--line-soft)}
.sec-head{max-width:62ch;margin-bottom:42px}
.sec-head h2{font-size:clamp(28px,3.6vw,40px)}
.sec-head p{color:var(--muted);margin:14px 0 0;font-size:18px}

/* cards */
.cards{display:grid;gap:18px}
.cards.c3{grid-template-columns:repeat(3,1fr)}
.cards.c2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--panel);border:1px solid var(--line-soft);border-radius:14px;
  padding:26px 24px;transition:transform .18s,border-color .18s,background .2s}
.card:hover{transform:translateY(-3px);border-color:var(--line);background:var(--panel-2)}
.card .num{font-family:var(--serif);font-size:15px;color:var(--sage);letter-spacing:.18em}
.card h3{font-size:23px;margin:10px 0 8px}
.card p{color:var(--muted);font-size:15.5px;margin:0}
.card.link::after{content:"→";display:inline-block;margin-top:16px;color:var(--blue);
  font-weight:600;transition:transform .18s}
.card.link:hover::after{transform:translateX(4px)}

/* families band */
#families{background:var(--navy-deep)}
.fam-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
a.fam{text-decoration:none;display:block}
.fam{background:var(--panel);border:1px solid var(--line-soft);border-radius:12px;padding:20px}
.fam .step{font-family:var(--serif);font-size:14px;color:var(--coral);letter-spacing:.16em}
.fam h4{margin:8px 0 6px;font-family:var(--serif);font-weight:600;font-size:19px}
.fam p{margin:0;color:var(--muted);font-size:14.5px}

/* publications */
.pubyear{display:flex;align-items:baseline;gap:16px;margin:34px 0 14px}
.pubyear .y{font-family:var(--serif);font-size:30px;color:var(--ink)}
.pubyear .ln{flex:1;height:1px;background:var(--line-soft)}
.pub{padding:15px 0;border-bottom:1px solid var(--line-soft);font-size:15.5px;color:var(--muted)}
.pub .ti{color:var(--ink);font-weight:500}
.pub b{color:var(--ink);font-weight:600}
.pub .jr{font-style:italic;color:var(--blue)}
.pub.feat{background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--coral-soft);border-radius:12px;
  padding:18px 20px;margin-bottom:8px}
.pub .tag{display:inline-block;font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:#fff;background:var(--coral-soft);border-radius:20px;padding:3px 11px;margin-left:8px;
  vertical-align:middle;font-weight:600}

/* about + contact */
.about-grid{display:grid;grid-template-columns:240px 1fr;gap:44px;align-items:start}
.headshot{width:100%;aspect-ratio:1;object-fit:cover;border-radius:14px;background:
  linear-gradient(160deg,#1b2f47,#16273c);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--muted-2);
  font-size:13px;text-align:center;padding:18px}
.about-grid p{color:var(--muted);font-size:16.5px;text-align:justify}
.about-grid p b{color:var(--ink);font-weight:600}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.cbox{background:var(--panel);border:1px solid var(--line-soft);border-radius:14px;padding:26px}
.cbox h3{font-size:21px;margin-bottom:8px}
.cbox p{color:var(--muted);font-size:15px;margin:0}
.todo{color:var(--muted-2);font-size:13px;font-style:italic}

/* footer */
footer{background:var(--navy-deep);padding:46px 0 56px}
.foot-grid{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;align-items:flex-start}
.foot-brand{font-family:var(--serif);letter-spacing:.16em;font-size:20px}
.disclaimer{max-width:62ch;color:var(--muted-2);font-size:13px;line-height:1.6;margin-top:14px}

/* reveal */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}
  .btn:hover,.card:hover{transform:none}
}

/* responsive */
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:36px;padding:60px 0 64px;text-align:center}
  .hero .lede{margin-left:auto;margin-right:auto}.cta-row{justify-content:center}
  .hero-frame{order:-1;width:min(320px,82%)}
  .cards.c3,.cards.c2,.fam-grid,.contact-grid{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr}.headshot{max-width:240px}
  .navlinks{position:fixed;inset:64px 0 auto 0;background:var(--navy-deep);
    flex-direction:column;gap:0;border-bottom:1px solid var(--line);
    padding:8px 0;transform:translateY(-120%);transition:transform .25s;align-items:stretch}
  .navlinks.open{transform:none}
  .navlinks a{padding:14px 28px;border-bottom:1px solid var(--line-soft);color:var(--ink)}
  .menu-btn{display:block}
}

/* --- nav brand subline --- */
.brand{align-items:center}
.brand .bw{display:flex;flex-direction:column;line-height:1.05}
.brand .bw .name{font-family:var(--serif);font-size:21px;letter-spacing:.16em;font-weight:600}
.brand .bw .sub{font-family:var(--sans);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted-2);font-weight:500;margin-top:3px}
.nav{height:72px}
.navlinks a.active{color:var(--ink);border-bottom:1px solid var(--sage)}

/* --- footer centered --- */
.foot-grid{flex-direction:column;align-items:center;text-align:center;gap:18px}
.foot-logo{width:120px;border-radius:12px;outline:1px solid var(--line)}
.disclaimer{margin:0 auto}

/* --- meet the lab page --- */
.page-top{padding:70px 0 8px}
.team-intro{max-width:60ch;color:var(--muted);font-size:18px;margin:14px 0 0}
.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:8px}
.member{background:var(--panel);border:1px solid var(--line-soft);border-radius:16px;
  padding:24px;transition:transform .18s,border-color .18s}
.member:hover{transform:translateY(-3px);border-color:var(--line)}
.member .photo{width:84px;height:84px;border-radius:50%;object-fit:cover;
  background:linear-gradient(160deg,#1b2f47,#16273c);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--muted-2);font-size:11px;text-align:center}
.member h3{font-size:20px;margin:16px 0 2px}
.member .role{color:var(--coral);font-size:13px;font-weight:600;letter-spacing:.04em}
.member .bio{color:var(--muted);font-size:14.5px;margin:12px 0 0}
.member .fun{color:var(--muted-2);font-size:13px;font-style:italic;margin:10px 0 0}
.join-card{background:var(--panel-2);border:1px dashed var(--line);border-radius:16px;
  padding:24px;display:flex;flex-direction:column;justify-content:center}
.join-card h3{font-size:20px;margin:0 0 6px}
.join-card p{color:var(--muted);font-size:14.5px;margin:0}
@media (max-width:900px){.team-grid{grid-template-columns:1fr}}

/* science · education · compassion */
.eyebrow.tri span{color:var(--coral);margin:0 8px;font-weight:700}

/* hero quick-nav icon row */
.quicknav{display:flex;flex-wrap:nowrap;gap:26px;margin-top:32px;
  padding-top:26px;border-top:1px solid var(--line-soft)}
.qn{display:flex;gap:11px;align-items:flex-start;flex:1;color:inherit}
.qn .ic{flex:none;width:30px;height:30px;color:var(--coral);margin-top:1px}
.qn .ic svg{width:100%;height:100%}
.qn h4{font-family:var(--sans);font-size:14px;font-weight:600;margin:0;color:var(--ink);
  transition:color .15s}
.qn p{margin:3px 0 0;font-size:12.5px;color:var(--muted-2);line-height:1.45}
.qn:hover h4{color:var(--blue)}
@media (max-width:900px){
  .quicknav{justify-content:center;gap:18px 24px}
  .qn{max-width:none;width:46%;min-width:150px}
}

/* two-tone: light research panel */
section.block.light{background:#eceff3}
#research .eyebrow{color:#2f6db0}
#research .sec-head h2{color:#15263b}
#research .sec-head p{color:#4a5f78}
#research .card{background:#ffffff;border:1px solid #d7dde6}
#research .card:hover{background:#ffffff;border-color:#c3d3e3;transform:translateY(-3px)}
#research .card h3{color:#15263b}
#research .card p{color:#52677e}
#research .card .num{color:#5f874a}


/* progressive tonal journey: light grey down through slate to near-black */
/* hero(navy) -> research(light grey) -> publications(slate) -> families(blue-slate) -> about(deep navy) -> contact(near-black) */

#publications{background:linear-gradient(180deg,#cdd6e1,#9fb0c4);color:#15263b}
#publications .eyebrow{color:#2c5f95}
#publications .sec-head h2{color:#15263b}
#publications .sec-head p{color:#3c5167}
#publications .pubyear .y{color:#15263b}
#publications .pubyear .ln{background:#7e93aa}
#publications .pub{color:#33485f;border-bottom-color:#8fa1b6}
#publications .pub .ti{color:#15263b}
#publications .pub b{color:#15263b}
#publications .pub .jr{color:#2c5f95}
#publications .pub.feat{background:#eef2f6;border-color:#c3d0de;border-left-color:var(--coral-soft)}

#families{background:linear-gradient(180deg,#54708f,#3a536f)}
#families{background:linear-gradient(180deg,#54708f,#3c587a)}
#families a.fam{text-decoration:none;display:block}
.fam{background:rgba(12,24,40,.34);border-color:rgba(255,255,255,.14)}
#families .sec-head p{color:#d6e2f0}
#families .fam p{color:#dbe6f3}

#about{background:linear-gradient(180deg,#22394f,#16273a)}
#contact{background:linear-gradient(180deg,#101f30,#0a141f)}
footer{background:#070f18}

/* contact links with icons */
.contact-links{display:flex;flex-direction:column;gap:10px;margin-top:16px}
.clink{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-size:14.5px;
  font-weight:500;transition:color .15s}
.clink svg{width:20px;height:20px;flex:none;color:var(--coral)}
.clink:hover{color:var(--blue)}
.clink:hover svg{color:var(--blue)}

/* library reading pages */
.doc-wrap{background:var(--navy)}
.doc{max-width:740px;margin:0 auto;padding:96px 28px 84px}
.breadcrumb{font-size:13px;color:var(--muted-2);letter-spacing:.02em;margin-bottom:22px}
.breadcrumb a{color:var(--blue)}
.doc h1{font-family:var(--serif);font-weight:600;font-size:clamp(30px,4.6vw,44px);line-height:1.08;margin:0 0 22px;color:var(--ink)}
.doc h3{font-family:var(--serif);font-weight:600;font-size:25px;margin:36px 0 10px;color:var(--ink)}
.doc h4{font-family:var(--serif);font-weight:600;font-size:21px;margin:30px 0 8px;color:var(--ink)}
.doc p{color:var(--muted);font-size:17px;line-height:1.78;margin:0 0 16px}
.doc a{color:var(--blue);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.doc a:hover{color:#a9cdec}
.doc strong,.doc b{color:var(--ink);font-weight:600}
.doc em{color:var(--muted-2)}
.doc ul,.doc ol{color:var(--muted);font-size:17px;line-height:1.72;padding-left:22px;margin:0 0 18px}
.doc li{margin:7px 0}
.doc li a{font-weight:500}
.doc hr{border:none;border-top:1px solid var(--line-soft);margin:34px 0}
.doc blockquote{background:var(--panel);border-left:3px solid var(--coral-soft);border-radius:10px;padding:14px 18px;margin:0 0 28px}
.doc blockquote p{margin:0;font-size:14.5px;color:var(--muted)}
.doc blockquote strong{color:var(--ink)}

/* library: shared wrappers */
.libwrap{max-width:860px;margin:0 auto;padding:96px 28px 84px}
.libwrap.wide{max-width:1080px}
.lib-h1{font-family:var(--serif);font-weight:600;font-size:clamp(30px,4.6vw,44px);line-height:1.08;margin:6px 0 16px;color:var(--ink)}
.lib-intro{color:var(--muted);font-size:18px;line-height:1.7;max-width:64ch;margin:0 0 22px}
.lib-foot{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.lib-ref{margin-top:30px}.lib-ref a{color:var(--blue)}

/* hub journey grid */
.journey{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:10px}
.jcard{display:flex;flex-direction:column;align-items:flex-start;gap:8px;text-decoration:none;
  background:var(--panel);border:1px solid var(--line-soft);border-radius:16px;padding:24px 22px;
  transition:transform .18s,border-color .18s,background .2s}
.jcard:hover{transform:translateY(-4px);border-color:var(--line);background:var(--panel-2)}
.jbadge{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;
  border-radius:50%;background:var(--grad);color:#0b1826;font-family:var(--serif);font-weight:700;font-size:15px}
.jic{width:40px;height:40px;color:var(--coral);margin-top:4px}
.jic svg{width:100%;height:100%}
.jt{font-family:var(--serif);font-weight:600;font-size:21px;color:var(--ink);margin-top:4px}
.jd{color:var(--muted);font-size:14px;line-height:1.5}

/* module vertical steps */
.steps{display:flex;flex-direction:column;gap:12px;margin-top:8px}
.scard{display:flex;align-items:center;gap:18px;text-decoration:none;
  background:var(--panel);border:1px solid var(--line-soft);border-radius:14px;padding:18px 22px;
  transition:transform .16s,border-color .18s,background .2s}
.scard:hover{transform:translateX(4px);border-color:var(--line);background:var(--panel-2)}
.sidx{flex:none;display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;
  border-radius:50%;border:1px solid var(--line);color:var(--blue);font-family:var(--serif);font-size:17px;font-weight:600}
.sbody{flex:1;display:flex;flex-direction:column;gap:3px}
.st{font-weight:600;color:var(--ink);font-size:16.5px}
.sd{color:var(--muted-2);font-size:13.5px;line-height:1.45}
.sarrow{color:var(--blue);font-size:18px;flex:none}
@media (max-width:820px){.journey{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.journey{grid-template-columns:1fr}}

/* ===== CDH library: light slate reading theme ===== */
.doc-wrap{background:#dde3ea}
/* article reading column */
.doc h1,.doc h3,.doc h4{color:#15263b}
.doc p{color:#37485c}
.doc strong,.doc b{color:#15263b}
.doc em{color:#5d6f83}
.doc ul,.doc ol{color:#37485c}
.doc a{color:#2c5f95}
.doc a:hover{color:#1f4a78}
.doc hr{border-top-color:#bcc7d4}
.doc blockquote{background:#eef2f6;border-left-color:var(--coral-soft)}
.doc blockquote p{color:#3c4f63}
.doc blockquote strong{color:#15263b}
.breadcrumb{color:#62748a}
.breadcrumb a{color:#2c5f95}

/* hub + module wrappers */
.lib-h1{color:#15263b}
.lib-intro{color:#3c4f63}
.libwrap .eyebrow{color:#2c5f95}
.libwrap blockquote{background:#eef2f6;border-left:3px solid var(--coral-soft);border-radius:10px;padding:14px 18px;margin:0 0 26px}
.libwrap blockquote p{margin:0;font-size:14.5px;color:#3c4f63}
.libwrap blockquote strong{color:#15263b}
.lib-ref a{color:#2c5f95}

/* journey cards on light */
.jcard{background:#ffffff;border-color:#cdd6e1}
.jcard:hover{background:#ffffff;border-color:#b4c2d2}
.jt{color:#15263b}
.jd{color:#52657b}

/* module step cards on light */
.scard{background:#ffffff;border-color:#cdd6e1}
.scard:hover{background:#ffffff;border-color:#b4c2d2}
.sidx{border-color:#c3d0de;color:#2c5f95}
.st{color:#15263b}
.sd{color:#62748a}
.sarrow{color:#2c5f95}

/* ghost buttons in the light library */
.libwrap .btn-ghost,.doc .btn-ghost{border-color:#b9c5d3;color:#1f3147}
.libwrap .btn-ghost:hover,.doc .btn-ghost:hover{border-color:#2c5f95}

/* work-in-progress note (light library theme) */
.wip{display:flex;gap:8px;align-items:baseline;background:#f7e9e2;border:1px solid #ecc9bb;
  color:#8a4a37;border-radius:10px;padding:11px 15px;font-size:13.5px;line-height:1.5;margin:0 0 24px}
.wip strong{color:#6f3a2a;font-weight:700}

/* mobile hero scaling fixes */
@media (max-width:900px){
  .hero-grid{padding:54px 0 60px}
  .hero-frame{order:-1;width:min(360px,86%)}
  .quicknav{flex-wrap:wrap;justify-content:center;gap:16px 22px}
  .qn{flex:0 1 auto;width:46%;min-width:150px;max-width:230px}
}
@media (max-width:560px){
  .hero h1{font-size:clamp(32px,8vw,40px)}
  .hero .lede{font-size:16.5px}
  .hero-frame{width:92%}
  .quicknav{gap:14px}
  .qn{width:100%;max-width:320px}
  .cta-row{width:100%}
  .cta-row .btn{flex:1;justify-content:center}
}

/* quick facts on member card */
.facts{margin-top:16px;border-top:1px solid var(--line-soft);padding-top:14px}
.facts-h{font-family:var(--sans);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--coral);font-weight:600;margin:0 0 9px}
.facts ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.facts li{font-size:13.5px;color:var(--muted);line-height:1.5}
.facts li strong{color:var(--ink);font-weight:600}