:root{
    --paper:#F5F6F8;
    --paper-2:#ffffff;
    --navy:#042A31;
    --navy-2:#0B6E78;
    --cyan:#17B3C0;
    --cyan-deep:#0B6E78;
    --teal:#0B6E78;
    --ink:#042A31;
    --muted:#4B5563;
    --line:rgba(4,42,49,.12);
    --line-2:rgba(4,42,49,.08);
    --shadow:0 1px 2px rgba(4,42,49,.06),0 12px 32px -18px rgba(4,42,49,.28);
    --radius:18px;
    --maxw:1120px;
  }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth;background:var(--navy)}
  body{
    margin:0;background:var(--paper);color:var(--ink);
    font-family:"Figtree",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
    font-size:18px;line-height:1.62;-webkit-font-smoothing:antialiased;
  }
  h1,h2,h3{font-family:"Bricolage Grotesque","Figtree",sans-serif;line-height:1.04;letter-spacing:-.015em;margin:0;font-weight:700}
  a{color:inherit}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(20px,5vw,44px)}
  .mono{font-family:"Space Mono",ui-monospace,monospace}
  .eyebrow{
    font-family:"Space Mono",monospace;font-size:.72rem;letter-spacing:.18em;
    text-transform:uppercase;color:var(--teal);display:inline-flex;gap:.6em;align-items:center;flex-wrap:wrap;max-width:100%;
  }
  .eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(23,179,192,.18)}

  /* ---------- top bar ---------- */
  header.topbar{position:sticky;top:0;z-index:50;background:#042A31;border-bottom:1px solid transparent}
  .topbar .row{display:flex;align-items:center;justify-content:space-between;height:74px;gap:16px}
  .brand{display:flex;align-items:center;gap:12px}
  .brand img{height:46px;width:auto;display:block}
  nav.links{display:flex;gap:28px;align-items:center}
  nav.links a{text-decoration:none;color:#cfe6ea;font-weight:600;font-size:.95rem;transition:color .15s}
  nav.links a:hover{color:#fff}
  .btn{
    display:inline-flex;align-items:center;gap:.5em;text-decoration:none;font-weight:700;
    background:var(--cyan);color:#032a3a;padding:.7em 1.15em;border-radius:999px;font-size:.95rem;
    border:1px solid transparent;transition:transform .12s,background .15s,box-shadow .15s;white-space:nowrap;
  }
  .btn:hover{background:var(--cyan-deep);color:#fff;transform:translateY(-1px)}
  .btn.ghost{background:transparent;color:var(--navy);border-color:var(--line)}
  .btn.ghost:hover{background:#fff;color:var(--navy)}
  .btn svg{width:1em;height:1em}

  /* ---------- hero ---------- */
  .hero{position:relative;overflow:hidden}
  .hero::before{content:"";position:absolute;inset:0;pointer-events:none}
  .hero .grid{position:relative;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:center;padding-top:76px;padding-bottom:88px}
  h1{font-size:clamp(2.5rem,5.4vw,4rem);font-weight:800}
  .studyname{font-family:"Bricolage Grotesque","Figtree",sans-serif;font-weight:800;font-size:clamp(3.2rem,6.5vw,5.2rem);line-height:.98;color:var(--navy);letter-spacing:-.03em;margin:16px 0 16px}
  h1 .accent{color:var(--cyan-deep)}
  .lede{font-size:1.18rem;color:var(--muted);max-width:34ch;margin:22px 0 30px;overflow-wrap:break-word}
  .hero .cta{display:flex;gap:14px;flex-wrap:wrap}
  .chips{display:flex;gap:10px;flex-wrap:wrap;margin-top:34px}
  .chip{font-size:.82rem;font-weight:600;background:#fff;border:1px solid var(--line);border-radius:999px;padding:.42em .9em;color:var(--navy);display:inline-flex;align-items:center;gap:.5em}
  .chip svg{width:15px;height:15px;color:var(--teal)}

  /* app screenshot */
  .appshot{display:flex;justify-content:center}
  .appshot img{
    width:100%;max-width:310px;height:auto;display:block;border-radius:30px;
    border:1px solid var(--line);
    box-shadow:0 40px 70px -34px rgba(4,42,49,.55),0 4px 14px rgba(4,42,49,.12);
    background:#fff;
  }

  /* ---------- generic section ---------- */
  section{padding:78px 0}
  .sechead{max-width:60ch}
  .sechead h2{font-size:clamp(1.7rem,3.4vw,2.5rem)}
  .sechead p{color:var(--muted);margin:.7em 0 0}
  .tick{display:flex;gap:4px;align-items:flex-end;height:20px;margin-bottom:22px}
  .tick i{width:4px;background:var(--cyan);border-radius:2px;display:block;opacity:.65}
  .tick i:nth-child(1){height:8px}.tick i:nth-child(2){height:16px}.tick i:nth-child(3){height:11px}
  .tick i:nth-child(4){height:20px}.tick i:nth-child(5){height:7px}.tick i:nth-child(6){height:14px}

  /* overview */
  .overview{display:block;max-width:74ch}
  .overview p{color:#2f4448}
  .overview p+p{margin-top:1em}
  .glance{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;position:sticky;top:96px}
  .glance .gh{background:var(--navy);color:#fff;padding:16px 22px;font-family:"Space Mono",monospace;font-size:.75rem;letter-spacing:.14em;text-transform:uppercase;display:flex;justify-content:space-between;align-items:center}
  .glance .status{color:#032a3a;background:var(--cyan);border-radius:999px;padding:.25em .7em;font-size:.68rem;font-weight:700}
  .glance dl{margin:0;padding:8px 22px 18px}
  .glance .r{display:flex;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px solid var(--line-2)}
  .glance .r:last-child{border-bottom:0}
  .glance dt{color:var(--muted);font-size:.82rem;font-weight:600}
  .glance dd{margin:0;text-align:right;font-family:"Space Mono",monospace;font-size:.82rem;font-weight:700;color:var(--navy)}

  /* how it works */
  .how{background:var(--paper-2)}
  .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:12px}
  .step{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px;position:relative}
  .step .no{font-family:"Space Mono",monospace;font-size:.8rem;color:var(--cyan-deep);font-weight:700;letter-spacing:.1em}
  .step .ic{width:46px;height:46px;border-radius:13px;background:linear-gradient(160deg,var(--cyan),var(--teal));display:grid;place-items:center;margin:14px 0 16px;color:#fff}
  .step .ic svg{width:24px;height:24px}
  .step h3{font-size:1.22rem;margin-bottom:8px}
  .step p{color:var(--muted);font-size:.98rem;margin:0}

  /* team */
  .team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:14px}
  .person{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;box-shadow:var(--shadow);display:flex;flex-direction:column}
  .person .top{display:flex;align-items:center;gap:14px}
  .avatar{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;color:#fff;font-family:"Bricolage Grotesque",sans-serif;font-weight:700;font-size:1.05rem;flex:none}
  .person h3{font-size:1.12rem}
  .person .role{color:var(--teal);font-size:.83rem;font-weight:600;margin-top:2px}
  .person .scholar{margin-top:auto;padding-top:18px;display:inline-flex;align-items:center;gap:.5em;font-size:.86rem;font-weight:600;color:var(--cyan-deep);text-decoration:none}
  .person .scholar svg{width:18px;height:18px;transition:transform .15s}
  .person .scholar:hover{color:var(--navy)}
  .person .scholar:hover svg{transform:translateY(-1px)}
  .team-note{color:var(--muted);font-size:.98rem;margin-top:28px;max-width:74ch}
  .team-note strong{color:var(--ink);font-weight:700}

  /* publications */
  .pubs{background:var(--paper-2)}
  .publist{display:flex;flex-direction:column;gap:14px;margin-top:16px}
  .pub{display:grid;grid-template-columns:74px 1fr auto;gap:22px;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:20px 24px;transition:border-color .15s,transform .12s}
  .pub:hover{border-color:var(--cyan);transform:translateY(-1px)}
  .pub .yr{font-family:"Space Mono",monospace;font-weight:700;font-size:1.35rem;color:var(--cyan-deep);line-height:1}
  .pub .yr small{display:block;font-size:.6rem;letter-spacing:.14em;color:var(--muted);font-weight:400;margin-top:4px}
  .pub h3{font-size:1.06rem;line-height:1.25}
  .pub .auth{color:var(--muted);font-size:.86rem;margin-top:5px}
  .pub .venue{font-size:.86rem;color:var(--teal);font-weight:600;margin-top:2px}
  .pub .venue em{color:var(--navy);font-style:italic}
  .pub .view{white-space:nowrap}
  .pub .view a{font-size:.82rem;font-weight:700;color:var(--cyan-deep);text-decoration:none;display:inline-flex;align-items:center;gap:.4em}
  .pub .view a:hover{color:var(--navy)}
  .pub .view svg{width:14px;height:14px}
  .pub .noview{font-size:.74rem;color:var(--muted);font-family:"Space Mono",monospace}

  /* registry callout */
  .callout{background:linear-gradient(150deg,var(--navy),var(--navy-2));color:#fff;border-radius:26px;padding:52px 48px;position:relative;overflow:hidden}
  .callout::after{content:"";position:absolute;right:-40px;top:-40px;width:280px;height:280px;background:radial-gradient(circle,rgba(23,179,192,.4),transparent 62%)}
  .callout h2{font-size:clamp(1.6rem,3vw,2.3rem);max-width:20ch;position:relative}
  .callout p{color:#A8E4EB;max-width:56ch;margin:16px 0 26px;position:relative}
  .callout .cta{display:flex;gap:14px;flex-wrap:wrap;position:relative}
  .callout .btn.ghost{color:#fff;border-color:rgba(255,255,255,.4)}
  .callout .btn.ghost:hover{background:rgba(255,255,255,.12);color:#fff}

  /* partners */
  .partners{background:#fff;border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}
  .partners .row{display:flex;flex-direction:column;align-items:center;gap:14px;padding:40px 0}
  .partners .lab{font-family:"Space Mono",monospace;font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
  .partners .pduk{height:96px;width:auto;max-width:90%}

  /* footer */
  footer.site{background:var(--navy);color:#A8E4EB;padding:44px 0 40px;font-size:.9rem}
  footer.site .row{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;align-items:flex-start}
  footer.site .fcol{display:flex;flex-direction:column;gap:18px;max-width:360px}
  footer.site .uni-logo{height:60px;width:auto;align-self:flex-start}
  footer.site .fstudy{line-height:1.5}
  footer.site strong{color:#fff;font-family:"Bricolage Grotesque",sans-serif;font-size:1.05rem;display:block;margin-bottom:4px}
  footer.site a{color:var(--cyan);text-decoration:underline;text-underline-offset:2px}
  footer.site a:hover{text-decoration:underline}
  footer.site .disc{max-width:52ch;color:#7FB6BD;font-size:.82rem;line-height:1.6}
  footer.site .fin{margin-top:26px;border-top:1px solid rgba(255,255,255,.12);padding-top:18px;font-size:.78rem;color:#6FA6AD}

  /* focus + motion */
  a:focus-visible,.btn:focus-visible{outline:3px solid var(--cyan);outline-offset:3px;border-radius:6px}
  @media (prefers-reduced-motion:reduce){
    *{animation:none!important;scroll-behavior:auto}
  }
  section[id]{scroll-margin-top:90px}
  .lbl-short{display:none}

  /* responsive */
  @media (max-width:900px){
    section{padding:60px 0}
    .hero .grid{grid-template-columns:minmax(0,1fr);gap:40px;padding-top:48px;padding-bottom:60px}
    .hero::before{background:none}
    .overview{grid-template-columns:1fr;gap:30px}
    .glance{position:static}
    .steps{grid-template-columns:1fr}
    .team-grid{grid-template-columns:1fr 1fr}
    nav.links{display:none}
  }
  @media (max-width:640px){
    body{font-size:17px}
    section{padding:48px 0}
    .topbar .row{height:62px}
    .brand img{height:38px}
    .btn{font-size:.9rem;padding:.6em .95em}
    .lbl-full{display:none}
    .lbl-short{display:inline}
    h1{font-size:clamp(2.15rem,8.5vw,2.9rem)}
    .lede{font-size:1.08rem;max-width:none}
    .hero .cta{width:100%}
    .hero .cta .btn{flex:1;justify-content:center;text-align:center}
    .appshot img{max-width:270px}
    .sechead h2{font-size:1.6rem}
    .team-grid{grid-template-columns:1fr;gap:14px}
    .person{padding:20px 20px}
    .person .scholar{padding-top:14px}
    .pub{grid-template-columns:auto 1fr;gap:8px 16px;padding:18px 20px;align-items:start}
    .pub .yr{grid-row:1;font-size:1.05rem}
    .pub>div:nth-child(2){grid-column:2}
    .pub .view{grid-column:1 / -1;justify-self:start;margin-top:2px}
    .pub .view a{padding:.35em 0}
    .callout{padding:34px 24px}
    .callout .cta{flex-direction:column;align-items:stretch}
    .callout .cta .btn{justify-content:center;text-align:center}
    footer.site .row{gap:26px}
    footer.site .disc{max-width:none}
  }
  @media (max-width:380px){
    .wrap{padding:0 16px}
    h1{font-size:2rem}
    .btn{font-size:.85rem;padding:.55em .8em}
  }

  /* hero visual */
  .hero .hero-copy{text-align:left}
  .hero-visual{display:flex;justify-content:center;align-items:center}
  .hero-shot{width:min(300px,82%)}
  .hero-shot img{display:block;width:100%;border-radius:34px;border:1px solid var(--line);background:#fff;box-shadow:0 50px 90px -34px rgba(4,42,49,.5),0 10px 26px rgba(4,42,49,.14)}
  @media (max-width:900px){ .hero-visual{margin-top:8px} .hero-shot{width:min(280px,70%)} }
  .btn.soon{background:var(--line-2);color:var(--muted);cursor:default;pointer-events:none;border-color:transparent}
  /* news */
  .newslist{display:flex;flex-direction:column;gap:16px;margin-top:16px}
  .newsitem{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px 28px}
  .newsitem .date{font-family:"Space Mono",monospace;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan-deep);font-weight:700}
  .newsitem h3{font-size:1.25rem;margin:8px 0 8px}
  .newsitem p{color:#2f4448;margin:0}
  .newsitem .more{display:inline-flex;align-items:center;gap:.4em;margin-top:14px;font-size:.86rem;font-weight:700;color:var(--cyan-deep);text-decoration:none}
  .newsitem .more:hover{color:var(--navy)}
  .newsitem .more svg{width:14px;height:14px}

  /* ---------- dark hero (PRIMARY) ---------- */
  .hero{background:#042A31}
  .hero .eyebrow{color:#A8E4EB}
  .hero .studyname{color:#fff}
  .hero h1{color:#fff}
  .hero h1 .accent{color:var(--cyan)}
  .hero .lede{color:#D6EEF1}
  .hero .chip{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.18);color:#eaf7f9}
  .hero .chip svg{color:var(--cyan)}
  .hero .btn.soon{background:rgba(255,255,255,.12);color:#dcefF2;border-color:transparent}
  .hero .btn.ghost{color:#eaf7f9;border-color:rgba(255,255,255,.4)}
  .hero .btn.ghost:hover{background:rgba(255,255,255,.12);color:#fff}
  /* phone separation on dark */
  .hero-visual{position:relative}
  .hero-visual::before{content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:82%;height:82%;background:radial-gradient(circle,rgba(23,179,192,.30),transparent 70%);filter:blur(46px);z-index:0;pointer-events:none}
  .hero-shot{position:relative;z-index:1}
  .hero .hero-shot img{border-color:rgba(255,255,255,.14);box-shadow:0 44px 90px -30px rgba(0,0,0,.55),0 0 0 1px rgba(255,255,255,.05)}

  /* ---------- mobile nav (hamburger) ---------- */
  .hamburger{display:none;align-items:center;justify-content:center;width:44px;height:44px;flex:0 0 auto;border:1px solid rgba(255,255,255,.28);background:transparent;border-radius:10px;color:#fff;cursor:pointer}
  .hamburger svg{width:24px;height:24px}
  .hamburger .i-close{display:none}
  @media (max-width:900px){
    .hamburger{display:inline-flex}
    .topbar .row .brand{margin-right:auto}
    nav.links{display:none}
    .topbar.nav-open nav.links{
      display:flex;flex-direction:column;gap:2px;
      position:absolute;left:0;right:0;top:100%;
      background:#042A31;border-top:1px solid rgba(255,255,255,.12);
      padding:8px 22px 16px;box-shadow:0 26px 44px -22px rgba(0,0,0,.55);z-index:60;
    }
    .topbar.nav-open nav.links a{color:#eaf7f9;font-weight:600;font-size:1.06rem;padding:14px 4px;border-bottom:1px solid rgba(255,255,255,.07)}
    .topbar.nav-open nav.links a:last-child{border-bottom:none}
    .topbar.nav-open .hamburger{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.4)}
    .topbar.nav-open .hamburger .i-menu{display:none}
    .topbar.nav-open .hamburger .i-close{display:inline}
  }

  /* framed hero screenshot on mobile so it doesn't bleed to the edges */
  @media (max-width:900px){
    .hero-shot{padding:8px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.20);border-radius:30px;box-shadow:0 22px 50px -24px rgba(0,0,0,.6)}
    .hero .hero-shot img{border:none;border-radius:22px;box-shadow:none}
  }

  .hero-copy{min-width:0}
  h1{overflow-wrap:break-word}