:root{
  --pri:#0b4da2;--pri-d:#08376f;--pri-dd:#06213f;--gold:#f5b301;--gold-l:#ffd775;--gold-d:#c9880a;
  --pri-rgb:11,77,162;--acc-rgb:245,179,1;
  --bg:#f4f8fd;--bg2:#eaf2fc;--paper:#ffffff;--txt:#16233a;--muted:#5f6b80;--line:#e5ecf6;
  --soft:0 20px 50px rgba(11,77,162,.10);
  --sans:"Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif;
  --serif:"Iowan Old Style","Palatino Linotype",Georgia,serif;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:var(--sans);background:var(--bg);color:var(--txt);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden;
     background-image:radial-gradient(720px 420px at 88% -6%,rgba(47,122,230,.10),transparent),radial-gradient(640px 420px at -6% 104%,rgba(245,179,1,.10),transparent)}
.wrap{max-width:1200px;margin:0 auto;padding:0 30px}
a{text-decoration:none;color:inherit}
html{scroll-behavior:smooth}
section[id],[id].reveal{scroll-margin-top:92px}
.serif{font-family:var(--serif)}.gold{color:var(--gold-d)}
.btn{display:inline-flex;align-items:center;gap:9px;padding:13px 26px;border-radius:999px;font-weight:600;font-size:14.5px;cursor:pointer;border:1px solid transparent;transition:transform .2s,background .2s,box-shadow .2s}
.btn.gold{background:linear-gradient(120deg,var(--gold),var(--gold-l));color:#4a3400;box-shadow:0 12px 28px rgba(245,179,1,.34)}
.btn.gold:hover{transform:translateY(-2px)}
.btn.line{border-color:rgba(11,77,162,.32);color:var(--pri);background:#fff}.btn.line:hover{border-color:var(--pri);box-shadow:var(--soft)}
@keyframes rise{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
@keyframes spin{to{transform:rotate(360deg)}}
.reveal{opacity:0;transform:translateY(28px);transition:.7s cubic-bezier(.2,.7,.2,1)}.reveal.in{opacity:1;transform:none}

/* header */
.topbar{background:var(--pri);font-size:12.5px;color:#dbe8fb}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:40px}
.topbar a{color:#dbe8fb;margin-left:16px}.topbar a:hover{color:#fff}
header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;font-size:17px;color:var(--txt)}
.brand .logo{height:58px;min-width:58px;border-radius:12px;background:#fff;padding:5px 8px;display:flex;align-items:center;justify-content:center;box-shadow:var(--soft)}
.brand .logo img{max-height:100%;max-width:180px;width:auto;object-fit:contain}
.brand .logo img{max-width:100%;max-height:100%}
.nlinks{display:flex;gap:26px;font-size:14.5px;font-weight:600;color:var(--txt)}
.nlinks a:hover{color:var(--pri)}

/* hero */
.hero{position:relative;overflow:hidden;padding:70px 0 84px;min-height:clamp(560px,82vh,760px);display:flex;flex-direction:column;justify-content:center;background:linear-gradient(135deg,#eef5ff,#f7fbff)}
.hero .arc{position:absolute;top:-42%;right:-10%;width:820px;height:820px;pointer-events:none;opacity:.7;animation:spin 90s linear infinite}
.hero .glow{display:none}
.hero .bgimg{position:absolute;inset:0;z-index:1;background-size:cover;background-position:center;opacity:1}
.hero .wrap{position:relative;z-index:2;max-width:900px}
.hero h1,.hero .eyebrow,.hero .theme,.hero .meta{text-shadow:0 1px 2px rgba(255,255,255,.9),0 0 20px rgba(255,255,255,.55)}
.eyebrow{display:inline-flex;align-items:center;gap:11px;font-size:12.5px;letter-spacing:2px;text-transform:uppercase;color:var(--gold-d);font-weight:800;margin-bottom:20px}
.eyebrow::before{content:"";width:34px;height:2px;background:var(--gold-d)}
.hero h1{font-size:clamp(34px,5vw,60px);line-height:1.05;font-weight:800;letter-spacing:-1px}
.hero h1 em{font-family:var(--serif);font-style:italic;font-weight:500;color:var(--pri)}
.hero .theme{font-family:var(--serif);font-style:italic;font-size:20px;color:var(--muted);margin-top:14px}
.hero .meta{display:flex;gap:26px;flex-wrap:wrap;margin:26px 0 32px;font-size:15.5px;color:var(--muted)}
.hero .meta b{color:var(--txt)}.hero .meta i{color:var(--gold-d);font-style:normal;margin-right:6px}
.hcta{display:flex;gap:14px;flex-wrap:wrap}

section.pad{padding:80px 0}
.sec-head{text-align:center;max-width:660px;margin:0 auto 48px}
.sec-head .eyebrow{justify-content:center}
.sec-head h2{font-size:clamp(28px,3.6vw,40px);font-weight:800;letter-spacing:-.5px}
.sec-head h2 em{font-family:var(--serif);font-style:italic;font-weight:500;color:var(--pri)}
.sec-head p{color:var(--muted);margin-top:12px}
.alt{background:rgba(234,242,252,.55)}

/* welcome */
.welcome-txt{max-width:820px;margin:0 auto;text-align:center;font-size:18px;color:#3a4557;font-family:var(--serif);line-height:1.7}

/* people */
.role-block{margin-bottom:44px}
.role-title{font-size:13px;letter-spacing:1.5px;text-transform:uppercase;color:var(--gold-d);font-weight:800;text-align:center;margin-bottom:26px;position:relative}
.people{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.people.feat{grid-template-columns:repeat(auto-fit,minmax(230px,270px));justify-content:center}
@media(max-width:1024px){.people{grid-template-columns:repeat(3,1fr)}}
@media(max-width:768px){.people,.people.feat{grid-template-columns:repeat(2,1fr);gap:18px}}
@media(max-width:600px){.people,.people.feat{grid-template-columns:1fr;gap:18px}}
.person{background:var(--paper);border:1px solid var(--line);border-radius:22px;padding:30px 20px 26px;text-align:center;transition:.25s;box-shadow:var(--soft);min-width:0}
.person:hover{border-color:rgba(245,179,1,.5);transform:translateY(-4px);box-shadow:0 26px 56px rgba(11,77,162,.14)}
.person .ph{width:150px;height:150px;border-radius:50%;margin:0 auto 16px;background:linear-gradient(135deg,#ffe0cf,#ffb7c8);display:flex;align-items:center;justify-content:center;font-size:44px;font-weight:700;color:#fff;overflow:hidden;border:4px solid #fff;box-shadow:0 12px 30px -10px rgba(20,22,40,.30)}
/* calm, ICP-style rotating gradients behind photos / initials (shows when photos are cut-out PNGs) */
.person:nth-child(4n+1) .ph{background:linear-gradient(135deg,#ffe0cf,#ff9db4)}
.person:nth-child(4n+2) .ph{background:linear-gradient(135deg,#d7ecdd,#8fd3ac)}
.person:nth-child(4n+3) .ph{background:linear-gradient(135deg,#ffeecb,#ffcf80)}
.person:nth-child(4n)   .ph{background:linear-gradient(135deg,#dce7ff,#a9c3f6)}
.person .ph img{width:100%;height:100%;object-fit:cover}
.person h4{font-size:17px;font-weight:800;letter-spacing:-.2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.person .role{color:var(--gold-d);font-size:13px;margin-top:4px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.person small{color:var(--muted);font-size:12.5px;display:block;margin-top:4px}
.person .flag{color:var(--muted);font-size:12px;margin-top:6px}

/* topics */
.topic-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.topic{display:flex;align-items:center;gap:13px;background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:16px 18px;font-weight:600;transition:.2s;box-shadow:var(--soft)}
.topic:hover{border-color:rgba(245,179,1,.5);transform:translateY(-2px)}
.topic .n{width:30px;height:30px;flex:none;border-radius:9px;background:rgba(245,179,1,.16);color:var(--gold-d);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800}

/* program */
.tl{max-width:820px;margin:0 auto}
.tl-item{display:grid;grid-template-columns:64px 1fr;gap:22px;padding:22px 0;border-bottom:1px solid var(--line)}
.tl-item .day{font-family:var(--serif);color:var(--gold-d);font-size:15px;text-align:center;line-height:1.2}
.tl-item .day b{display:block;font-size:30px;color:var(--pri)}
.tl-item h4{font-size:19px;font-weight:700}
.tl-item p{color:var(--muted);margin-top:5px}

/* sponsors */
.spon-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:16px}
.spon{background:#fff;border:1px solid var(--line);border-radius:14px;height:96px;display:flex;align-items:center;justify-content:center;padding:16px;color:var(--pri-d);font-weight:700;text-align:center;box-shadow:var(--soft)}
.spon img{max-width:100%;max-height:100%;object-fit:contain}

/* gallery */
.gal{columns:3;column-gap:14px}
.gal img{width:100%;border-radius:14px;margin:0 0 14px;display:block;break-inside:avoid;box-shadow:var(--soft)}

/* venue */
.venue{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;max-width:1000px;margin:0 auto}
.venue .vimg{aspect-ratio:4/3;border-radius:18px;background-size:cover;background-position:center;border:1px solid var(--line);box-shadow:var(--soft)}
.venue h3{font-family:var(--serif);font-size:26px}
.venue p{color:var(--muted);margin-top:10px}

/* abstract */
.abs-card{max-width:780px;margin:0 auto;background:var(--paper);border:1px solid var(--line);border-radius:22px;padding:36px;box-shadow:var(--soft)}
.abs-note{background:rgba(245,179,1,.12);border:1px solid rgba(245,179,1,.35);border-radius:12px;padding:12px 16px;color:var(--gold-d);font-size:14px;margin-bottom:22px}
.abs-card .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.abs-card input,.abs-card textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:11px;background:#fbfdff;color:var(--txt);font:inherit;margin-bottom:14px}
.abs-card input::placeholder,.abs-card textarea::placeholder{color:#9aa7bd}
.abs-card input:focus,.abs-card textarea:focus{outline:none;border-color:var(--pri);box-shadow:0 0 0 4px rgba(11,77,162,.12)}
.abs-ok{max-width:780px;margin:0 auto;text-align:center;background:#e8f6ee;border:1px solid #b9e6cd;border-radius:18px;padding:36px;color:#147a45}
.abs-ok i{font-size:40px;color:#22a06b}

footer{background:linear-gradient(180deg,#eef4fc,#e3edfa);padding:56px 0 28px;color:#54617a;font-size:14px;border-top:1px solid var(--line)}
.fgrid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr;gap:34px}
footer h5{color:var(--txt);font-size:12px;letter-spacing:1.5px;text-transform:uppercase;margin-bottom:14px}
footer a{display:block;color:#54617a;margin-bottom:8px}footer a:hover{color:var(--pri)}
.copy{border-top:1px solid var(--line);margin-top:38px;padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px}.copy a{color:var(--pri)}

@media(max-width:820px){.venue,.abs-card .row{grid-template-columns:1fr}.gal{columns:2}.fgrid{grid-template-columns:1fr}.nlinks{display:none}}
@media(max-width:640px){
  .wrap{padding:0 16px}
  .topbar{font-size:11px}
  .topbar .wrap{height:auto;padding:7px 16px;flex-wrap:wrap;gap:2px 14px;justify-content:center;text-align:center}
  .topbar a{margin-left:0}
  nav{height:auto;flex-wrap:wrap;gap:10px 12px;padding:12px 0}
  .brand{font-size:14px;gap:9px;line-height:1.2;flex:1;min-width:0}
  .brand .logo{height:46px;min-width:46px;padding:4px 6px}
  nav>.btn.gold{padding:9px 16px;font-size:13px;white-space:nowrap;flex:none}
  .hero{padding:42px 0 52px}
  .hero .theme{font-size:17px}
  .hero .meta{gap:12px 20px;margin:20px 0 26px;font-size:14px}
  .hcta{gap:10px}.hcta .btn{padding:12px 20px;font-size:14px}
  section.pad{padding:52px 0}
  .sec-head{margin-bottom:34px}
  .people,.people.feat{gap:18px}
  .topic-grid{grid-template-columns:1fr}
  .tl-item{grid-template-columns:52px 1fr;gap:14px}
  .tl-item .day b{font-size:24px}
  .gal{columns:1}
  .abs-card{padding:24px 18px}
  .copy{justify-content:center;text-align:center}
}