/* ============================================================
   Molecular Hematology Research Group — shared design system
   ============================================================ */
:root{
  --bg:#f6f7fc;
  --surface:rgba(255,255,255,.78);
  --surface-solid:#ffffff;
  --ink:#0b1233;
  --ink-soft:rgba(11,18,51,.68);
  --ink-faint:rgba(11,18,51,.45);
  --navy:#0a1e78;
  --red:#d80000;
  --violet:#5b2bd6;
  --grad:linear-gradient(92deg,var(--navy) 0%,var(--violet) 55%,var(--red) 110%);
  --ring:rgba(10,30,120,.10);
  --shadow-sm:0 2px 10px rgba(10,30,120,.06);
  --shadow-md:0 10px 30px rgba(10,30,120,.10);
  --shadow-lg:0 24px 60px rgba(10,30,120,.16);
  --radius:20px;
  --font-head:"Space Grotesk","Inter",ui-sans-serif,system-ui,sans-serif;
  --font-body:"Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0;padding:0;background:var(--bg)}
body{
  font-family:var(--font-body);
  color:var(--ink);
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

/* soft gradient mesh behind everything */
body::before{
  content:"";
  position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(900px 600px at 12% -10%,rgba(10,30,120,.10),transparent 60%),
    radial-gradient(800px 540px at 95% 10%,rgba(216,0,0,.07),transparent 60%),
    radial-gradient(700px 700px at 50% 110%,rgba(91,43,214,.08),transparent 60%),
    var(--bg);
}

#dna{
  position:fixed;inset:0;width:100%;height:100%;
  z-index:0;pointer-events:none;opacity:.28;
}
@media (prefers-reduced-motion:reduce){ #dna{display:none} }

::selection{background:rgba(10,30,120,.16)}

/* ---------- Navigation ---------- */
.nav-wrap{
  position:fixed;top:18px;left:0;right:0;z-index:200;
  display:flex;justify-content:center;padding:0 14px;
}
.nav{
  display:flex;align-items:center;gap:4px;
  max-width:100%;overflow-x:auto;scrollbar-width:none;
  background:rgba(255,255,255,.72);
  border:1px solid rgba(255,255,255,.9);
  padding:7px;border-radius:999px;
  backdrop-filter:blur(18px) saturate(1.4);
  -webkit-backdrop-filter:blur(18px) saturate(1.4);
  box-shadow:var(--shadow-md);
}
.nav::-webkit-scrollbar{display:none}
.nav .brand{
  display:flex;align-items:center;gap:8px;
  font-family:var(--font-head);font-weight:700;font-size:14px;
  padding:8px 14px 8px 10px;color:var(--navy);
  text-decoration:none;white-space:nowrap;
}
.nav .brand .dot{
  width:22px;height:22px;border-radius:7px;flex:none;
  background:var(--grad);
  display:grid;place-items:center;color:#fff;
  font-size:11px;font-weight:800;
}
.nav a.link{
  text-decoration:none;color:var(--ink-soft);font-weight:550;
  padding:9px 16px;border-radius:999px;font-size:13.5px;
  white-space:nowrap;transition:all .22s ease;
}
.nav a.link:hover{background:rgba(10,30,120,.07);color:var(--ink)}
.nav a.link.active{background:var(--navy);color:#fff;box-shadow:0 4px 14px rgba(10,30,120,.35)}

@media (max-width:760px){
  .nav-wrap{top:10px}
  .nav .brand span{display:none}
  .nav a.link{padding:8px 12px;font-size:12.5px}
}

/* ---------- Layout ---------- */
.container{
  position:relative;z-index:10;
  max-width:1180px;margin:0 auto;
  padding:130px 22px 90px;
}
@media (max-width:760px){.container{padding:104px 16px 70px}}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--navy);
  background:rgba(10,30,120,.07);
  border:1px solid rgba(10,30,120,.10);
  padding:6px 14px;border-radius:999px;margin-bottom:18px;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--red)}

h1.display{
  font-family:var(--font-head);
  font-size:clamp(34px,6.4vw,72px);
  line-height:1.04;letter-spacing:-.03em;font-weight:700;
  margin:0 0 22px;
}
.grad-text{
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.lede{
  font-size:clamp(16px,2vw,20px);line-height:1.7;color:var(--ink-soft);
  max-width:760px;margin:0 auto;
}

.section{margin-top:64px}
.section-head{
  font-family:var(--font-head);
  font-size:clamp(22px,3.4vw,32px);font-weight:700;letter-spacing:-.02em;
  margin:0 0 6px;
}
.section-sub{color:var(--ink-soft);margin:0 0 26px;font-size:15.5px;line-height:1.6;max-width:720px}

/* ---------- Cards & grids ---------- */
.grid{display:grid;gap:20px}
.grid.cols-3{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
.grid.cols-4{grid-template-columns:repeat(auto-fill,minmax(225px,1fr))}

.card{
  background:var(--surface);
  border:1px solid rgba(255,255,255,.85);
  border-radius:var(--radius);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  box-shadow:var(--shadow-sm);
  padding:24px;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:rgba(10,30,120,.16)}

/* team member */
.member{text-align:center;cursor:default;position:relative;overflow:hidden}
.member::after{
  content:"";position:absolute;inset:auto 0 0 0;height:4px;
  background:var(--grad);opacity:0;transition:opacity .28s ease;
}
.member:hover::after{opacity:1}
.member img{
  width:116px;height:116px;border-radius:50%;object-fit:cover;
  border:3px solid rgba(10,30,120,.10);margin-bottom:12px;
  transition:transform .3s ease,border-color .3s ease;
}
.member:hover img{transform:scale(1.06);border-color:var(--red)}
.member h3{font-family:var(--font-head);font-size:17px;margin:6px 0 2px;font-weight:650}
.member p{font-size:13.5px;color:var(--ink-soft);margin:3px 0;line-height:1.45}
.member .creds{font-size:12px;color:var(--red);font-weight:650;letter-spacing:.02em}
.member.featured img{width:148px;height:148px;border-width:4px}

/* publication card */
.pub{
  padding:0;overflow:hidden;display:flex;flex-direction:column;text-decoration:none;color:inherit;
}
.pub .thumb{
  aspect-ratio:4/3;overflow:hidden;background:rgba(10,30,120,.05);
}
.pub .thumb img{
  width:100%;height:100%;object-fit:cover;object-position:top;
  transition:transform .4s ease;
}
.pub:hover .thumb img{transform:scale(1.045)}
.pub .meta{padding:16px 18px 18px}
.pub .meta .cap{font-weight:600;font-size:14.5px;line-height:1.45;margin:0}
.pub .meta .yr{font-size:12px;color:var(--red);font-weight:700;letter-spacing:.06em;margin:0 0 5px}

/* chips & buttons */
.chips{display:flex;flex-wrap:wrap;gap:7px;margin-top:14px}
.chip{
  font-size:11.5px;font-weight:600;color:var(--navy);
  background:rgba(10,30,120,.07);border:1px solid rgba(10,30,120,.10);
  border-radius:999px;padding:4px 11px;
}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-weight:600;font-size:14.5px;text-decoration:none;cursor:pointer;
  border-radius:999px;padding:12px 24px;border:0;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
  font-family:var(--font-body);
}
.btn.primary{background:var(--navy);color:#fff;box-shadow:0 8px 22px rgba(10,30,120,.30)}
.btn.primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(10,30,120,.38)}
.btn.ghost{background:rgba(255,255,255,.75);color:var(--navy);border:1px solid rgba(10,30,120,.16)}
.btn.ghost:hover{background:#fff;transform:translateY(-2px)}
.btn.small{padding:8px 16px;font-size:13px}

/* ---------- Social gallery ---------- */
.gallery{columns:3;column-gap:18px}
@media (max-width:900px){.gallery{columns:2}}
@media (max-width:560px){.gallery{columns:1}}
.shot{
  break-inside:avoid;margin:0 0 18px;border-radius:var(--radius);overflow:hidden;
  background:var(--surface);border:1px solid rgba(255,255,255,.85);
  box-shadow:var(--shadow-sm);cursor:zoom-in;
  transition:transform .28s ease,box-shadow .28s ease;
}
.shot:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.shot img{width:100%;display:block}
.shot figcaption{padding:12px 16px;font-size:13.5px;color:var(--ink-soft);line-height:1.5}

.lightbox{
  position:fixed;inset:0;z-index:500;display:none;
  background:rgba(8,12,32,.86);backdrop-filter:blur(8px);
  align-items:center;justify-content:center;padding:30px;cursor:zoom-out;
}
.lightbox.open{display:flex}
.lightbox img{max-width:94vw;max-height:86vh;border-radius:14px;box-shadow:var(--shadow-lg)}
.lightbox .lb-cap{
  position:absolute;bottom:24px;left:0;right:0;text-align:center;
  color:rgba(255,255,255,.9);font-size:14px;padding:0 24px;
}

/* ---------- Prose (research page) ---------- */
.prose p{line-height:1.75;color:var(--ink-soft);font-size:15.5px}
.prose strong{color:var(--ink)}
.area-num{
  font-family:var(--font-head);font-weight:700;font-size:13px;color:#fff;
  background:var(--grad);width:30px;height:30px;border-radius:9px;
  display:inline-grid;place-items:center;flex:none;margin-top:2px;
}
.area h3{font-family:var(--font-head);font-size:18.5px;margin:0;letter-spacing:-.01em;line-height:1.35}
.area-head{display:flex;gap:13px;align-items:flex-start;margin-bottom:10px}
.refs{margin:14px 0 0;padding:0 0 0 18px}
.refs li{font-size:13.5px;line-height:1.65;color:var(--ink-soft);margin-bottom:9px}
.refs em{color:var(--ink)}
details.refbox{margin-top:14px}
details.refbox summary{
  cursor:pointer;font-size:13px;font-weight:650;color:var(--navy);
  list-style:none;display:inline-flex;align-items:center;gap:6px;
}
details.refbox summary::after{content:"▾";transition:transform .2s}
details.refbox[open] summary::after{transform:rotate(180deg)}

/* ---------- Footer ---------- */
.footer{
  position:relative;z-index:10;
  border-top:1px solid rgba(10,30,120,.08);
  background:rgba(255,255,255,.6);backdrop-filter:blur(10px);
  padding:34px 22px;text-align:center;
}
.footer .f-name{font-family:var(--font-head);font-weight:700;color:var(--navy);font-size:15px;margin-bottom:6px}
.footer .f-sub{font-size:13px;color:var(--ink-faint)}
.footer a{color:var(--navy);text-decoration:none;font-weight:550}
.footer a:hover{text-decoration:underline}

/* ---------- Reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .card,.member img,.pub .thumb img,.shot{transition:none}
}

/* misc */
.empty-state{
  text-align:center;padding:70px 24px;color:var(--ink-faint);
  border:2px dashed rgba(10,30,120,.14);border-radius:var(--radius);
  font-size:15px;
}
a.inline{color:var(--red);font-weight:600;text-decoration:underline;text-underline-offset:3px}