:root{
 --navy:#002e6d; --navy2:#0a3f8a; --bg:#f5f5f5; --head:#1A1C1F; --text:#343438;
 --muted:#6a6d72; --line:#e2e2e2; --white:#fff; --maxw:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Manrope",-apple-system,Segoe UI,Helvetica,Arial,sans-serif;font-size:1.125rem;line-height:1.62;color:var(--text);background:var(--white);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--navy);text-decoration:none}
p{margin:0 0 1.1em}
h1,h2,h3,h4{font-family:"Cormorant Garamond",Georgia,serif;font-weight:700;color:var(--head);line-height:1.1}
h1{font-size:clamp(2.6rem,1.8rem+3.4vw,4.4rem)}
h2{font-size:clamp(2rem,1.4rem+2.4vw,3.2rem)}
h3{font-size:1.7rem}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 26px}
.narrow{max-width:820px;margin:0 auto}
.eyebrow{font-family:"Manrope";text-transform:uppercase;letter-spacing:.24em;font-size:.78rem;font-weight:700;color:var(--navy);margin-bottom:16px}
section.block{padding:96px 0}
section.block.gray{background:var(--bg)}
section.block.navy{background:var(--navy);color:#dce6f3}
section.block.navy h2,section.block.navy h3{color:#fff}
.lead{font-size:1.32rem;color:var(--head);line-height:1.5}
.center{text-align:center}
.sec-head{max-width:780px;margin:0 auto 54px;text-align:center}
.sec-head h2{margin-bottom:12px}
.divider{width:64px;height:3px;background:var(--navy);margin:20px auto 0}
.btn{display:inline-block;font-family:"Manrope";font-weight:700;font-size:.82rem;text-transform:uppercase;letter-spacing:.13em;padding:15px 32px;border-radius:2px;border:2px solid var(--navy);background:var(--navy);color:#fff;cursor:pointer;transition:.2s}
.btn:hover{background:#00204d;border-color:#00204d}
.btn-out{background:transparent;color:var(--navy)}
.btn-out:hover{background:var(--navy);color:#fff}
.btn-light{background:#fff;color:var(--navy);border-color:#fff}
.btn-light:hover{background:transparent;color:#fff}
/* header */
.hdr{position:fixed;top:0;left:0;right:0;z-index:70;transition:.3s;padding:16px 0}
.hdr .hdr-in{display:flex;align-items:center;justify-content:space-between}
.hdr .brand{display:flex;align-items:center;gap:12px;color:#fff}
.hdr .brand img{height:42px;width:auto}
.hdr .brand span{font-family:"Cormorant Garamond";font-weight:700;font-size:1.35rem;color:#fff;letter-spacing:.01em;line-height:1}
.hdr{background:linear-gradient(rgba(0,20,50,.55),rgba(0,20,50,0))}
.hdr.scrolled{background:var(--navy);box-shadow:0 2px 18px rgba(0,0,0,.25)}
.hdr nav{display:flex;align-items:center;gap:28px}
.hdr nav a{color:#fff;font-family:"Manrope";font-size:.82rem;font-weight:600;text-transform:uppercase;letter-spacing:.1em;opacity:.92}
.hdr nav a:hover{opacity:1}
.hdr nav a.navbtn{border:1.5px solid #fff;padding:9px 18px;border-radius:2px}
.hdr nav a.navbtn:hover{background:#fff;color:var(--navy)}
.navtog{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.navtog span{width:26px;height:2px;background:#fff;display:block}
@media(max-width:960px){
 .navtog{display:flex}
 .hdr nav{position:fixed;inset:0 0 0 auto;width:min(80vw,320px);background:var(--navy);flex-direction:column;justify-content:center;gap:24px;transform:translateX(100%);transition:.35s;padding:40px}
 .hdr nav.open{transform:none}
}
/* hero */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;background:var(--navy);background-size:cover;background-position:center;color:#fff;overflow:hidden}
.hero .ov{position:absolute;inset:0;background:linear-gradient(120deg,rgba(0,25,58,.92),rgba(0,46,109,.72) 55%,rgba(0,46,109,.5))}
.hero .inner{position:relative;z-index:2;max-width:900px;padding:130px 0 70px}
.hero .datebar{font-family:"Manrope";text-transform:uppercase;letter-spacing:.18em;font-size:.9rem;font-weight:700;color:#a9c2e6;margin-bottom:22px}
.hero h1{color:#fff;font-size:clamp(2.8rem,1.8rem+4vw,5.2rem);margin-bottom:8px}
.hero .tag{font-family:"Cormorant Garamond";font-style:italic;font-size:clamp(1.6rem,1.2rem+1.6vw,2.4rem);color:#fff;margin-bottom:20px}
.hero p{color:#d5e0f0;font-size:1.28rem;max-width:640px;margin-bottom:30px}
.hero .cta-row{display:flex;gap:14px;flex-wrap:wrap}
/* problem/solution accent */
.stat{font-family:"Cormorant Garamond";font-weight:700;color:var(--navy);font-size:clamp(2.4rem,1.6rem+2.4vw,3.6rem);line-height:1}
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split img{width:100%;border-radius:4px}
@media(max-width:840px){.split{grid-template-columns:1fr;gap:34px}}
.pcard{background:#fff;border:1px solid var(--line);border-left:4px solid var(--navy);padding:34px 34px}
.pcard h3{margin-bottom:12px}
/* speakers */
.spk-grid{display:flex;flex-wrap:wrap;justify-content:center;align-items:flex-start;gap:32px}
.spk{flex:0 0 248px;max-width:248px;cursor:pointer;text-align:center;background:none;border:0;font:inherit;padding:0}
@media(max-width:680px){.spk{flex:0 0 calc(50% - 16px);max-width:none}}
.spk .ph{aspect-ratio:1/1;border-radius:6px;overflow:hidden;background:#dfe6f0;margin-bottom:16px;position:relative}
.spk .ph img{width:100%;height:100%;object-fit:cover;transition:.4s}
.spk:hover .ph img{transform:scale(1.05)}
.spk .ph:after{content:"View bio";position:absolute;inset:auto 0 0 0;background:linear-gradient(rgba(0,46,109,0),rgba(0,46,109,.92));color:#fff;font-family:"Manrope";font-size:.78rem;text-transform:uppercase;letter-spacing:.12em;font-weight:700;padding:26px 0 12px;opacity:0;transition:.3s}
.spk:hover .ph:after{opacity:1}
.spk h3{font-size:1.28rem;margin-bottom:2px;line-height:1.12}
.spk .role{font-family:"Manrope";font-size:.85rem;color:var(--text);line-height:1.35;margin-bottom:4px}
.spk .cty{font-family:"Manrope";font-size:.8rem;color:var(--navy);font-weight:700;text-transform:uppercase;letter-spacing:.08em}
/* modal */
.modal{position:fixed;inset:0;z-index:120;background:rgba(6,18,38,.82);display:none;align-items:center;justify-content:center;padding:28px}
.modal.open{display:flex;animation:fade .25s ease}
@keyframes fade{from{opacity:0}to{opacity:1}}
.modal-card{background:#fff;max-width:820px;width:100%;max-height:90vh;overflow:auto;display:grid;grid-template-columns:300px 1fr;border-radius:4px}
.modal-card .m-photo{background:#dfe6f0;position:sticky;top:0;align-self:start;height:100%;min-height:360px}
.modal-card .m-photo img{width:100%;height:100%;object-fit:cover;object-position:top center}
.modal-card .m-body{padding:42px 44px}
.modal-card .m-close{position:fixed;top:22px;right:30px;color:#fff;font-size:2.6rem;font-weight:300;cursor:pointer;line-height:1;z-index:2}
.modal-card h3{font-size:2.1rem;margin-bottom:4px;line-height:1.08}
.modal-card .m-role{font-family:"Manrope";color:var(--text);font-size:1rem;line-height:1.4;margin-bottom:8px}
.modal-card .m-cty{font-family:"Manrope";color:var(--navy);font-weight:700;text-transform:uppercase;letter-spacing:.08em;font-size:.78rem;margin-bottom:22px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.modal-card .m-bio{font-size:1.02rem;line-height:1.7}
.modal-card .m-bio p{margin:0 0 1em}
.modal-card .m-bio.clamped{max-height:300px;overflow:hidden;position:relative}
.modal-card .m-bio.clamped:after{content:"";position:absolute;inset:auto 0 0 0;height:96px;background:linear-gradient(rgba(255,255,255,0),#fff)}
.modal-card .m-more{display:inline-block;margin-top:14px;background:none;border:0;cursor:pointer;font-family:"Manrope";font-weight:700;font-size:.82rem;text-transform:uppercase;letter-spacing:.1em;color:var(--navy)}
.modal-card .m-more:hover{text-decoration:underline}
.modal-card .m-li{display:inline-block;margin-top:20px;font-family:"Manrope";font-weight:700;font-size:.82rem;text-transform:uppercase;letter-spacing:.1em;color:var(--navy)}
@media(max-width:640px){.modal-card{grid-template-columns:1fr}.modal-card .m-photo{aspect-ratio:4/3;min-height:0;position:static}.modal-card .m-body{padding:32px 28px}}
/* participant gallery */
.pgal{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:12px}
.pgal figure{overflow:hidden;border-radius:4px;background:#dfe6f0;aspect-ratio:3/2}
.pgal img{width:100%;height:100%;object-fit:cover;transition:.5s}
.pgal figure:hover img{transform:scale(1.05)}
@media(max-width:760px){.pgal{grid-template-columns:1fr 1fr}}
/* agenda schedule */
.agenda{max-width:820px;margin:0 auto}
.ag-item{display:grid;grid-template-columns:130px 1fr;gap:24px;padding:22px 0;border-bottom:1px solid var(--line)}
.ag-item .ag-time{font-family:"Cormorant Garamond";font-weight:700;font-size:1.5rem;color:var(--navy)}
.ag-item .ag-title{font-size:1.1rem;color:var(--head);font-weight:600}
.ag-item .ag-spon{display:block;font-family:"Manrope";font-size:.82rem;color:var(--muted);font-weight:400;margin-top:4px;text-transform:uppercase;letter-spacing:.06em}
@media(max-width:560px){.ag-item{grid-template-columns:90px 1fr;gap:14px}.ag-item .ag-time{font-size:1.2rem}}
/* sponsors */
.spon-group{margin-bottom:48px;text-align:center}
.spon-group h3{font-size:1.4rem;color:var(--navy);margin-bottom:26px;font-family:"Manrope";text-transform:uppercase;letter-spacing:.14em;font-weight:800;font-size:.95rem}
.spon-row{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:44px}
.spon-row a{display:block;filter:grayscale(0);transition:.25s}
.spon-row img{max-height:88px;max-width:230px;width:auto;object-fit:contain}
.spon-row a:hover{transform:translateY(-3px)}
/* register */
.reg-badge{display:inline-block;background:#fff;border:2px solid var(--navy);color:var(--navy);font-family:"Manrope";font-weight:800;text-transform:uppercase;letter-spacing:.14em;font-size:.9rem;padding:14px 30px;border-radius:2px}
/* briefing book */
.book{display:grid;grid-template-columns:280px 1fr;gap:44px;align-items:center}
.book img{width:100%;border-radius:4px;box-shadow:0 16px 40px rgba(0,0,0,.18)}
@media(max-width:760px){.book{grid-template-columns:1fr;text-align:center}.book img{max-width:240px;margin:0 auto}}
/* footer */
.footer{background:#00204d;color:#aebfd6;padding:60px 0 30px;text-align:center}
.footer img{height:60px;width:auto;margin:0 auto 22px}
.footer .fnav{display:flex;justify-content:center;flex-wrap:wrap;gap:24px;margin-bottom:26px}
.footer .fnav a{color:#cdd8ea;font-family:"Manrope";font-size:.85rem;text-transform:uppercase;letter-spacing:.1em}
.footer .fnav a:hover{color:#fff}
.footer .disc{max-width:720px;margin:0 auto 20px;font-size:.9rem;color:#8ea3c4}
.footer .cr{font-size:.82rem;color:#7089ad;border-top:1px solid rgba(255,255,255,.12);padding-top:20px}
/* reveal */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1!important;transform:none!important}}