:root{
  --ink:#16202e;
  --muted:#5b6675;
  --line:#e6eaf1;
  --accent:#2f5d9e;
  --accent2:#6b3fa0;
  --accent3:#3aa0c2;
  --bg:#ffffff;
  --soft:#f7f9fc;
  --maxw:1020px;
  --grad:linear-gradient(90deg,var(--accent),var(--accent2));
  --shadow:0 10px 30px rgba(22,32,46,.08);
  --shadow-lg:0 18px 50px rgba(22,32,46,.16);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:var(--accent);text-decoration:none;transition:color .2s;}
a:hover{color:var(--accent2);}

/* ===== HERO ===== */
header.hero{
  background:#14213f url("header.svg") center/cover no-repeat;
  color:#fff;
  padding:84px 24px 74px;
  text-align:center;
  position:relative;
  overflow:hidden;
}
header.hero.compact{padding:56px 24px 48px;}
/* static moiré overlay over the base lattice */
header.hero::before{
  content:"";
  position:absolute;
  left:50%;top:50%;
  width:150vmax;height:150vmax;
  transform:translate(-50%,-50%);
  background:url("header_dots.svg") center/cover no-repeat;
  opacity:.55;
  z-index:1;
  pointer-events:none;
}
/* readability scrim */
header.hero::after{
  content:"";
  position:absolute;inset:0;
  background:radial-gradient(ellipse at center,rgba(12,18,40,.40) 0%,rgba(10,14,32,.66) 100%);
  z-index:2;pointer-events:none;
}
.hero-inner{max-width:var(--maxw);margin:0 auto;position:relative;z-index:3;}
.eyebrow{
  display:inline-block;
  letter-spacing:3px;text-transform:uppercase;
  font-size:12px;font-weight:600;
  padding:6px 16px;border-radius:30px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.25);
  -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);
  margin-bottom:22px;
}
header.hero h1{
  font-family:"Fraunces","Georgia",serif;
  font-size:clamp(28px,4.6vw,46px);
  line-height:1.15;margin:0 0 14px;font-weight:600;
  letter-spacing:-.5px;
  text-shadow:0 2px 24px rgba(0,0,0,.35);
}
header.hero.compact h1{font-size:clamp(22px,3vw,30px);margin-bottom:6px;}
header.hero .subtitle{
  font-size:clamp(16px,2vw,21px);
  font-weight:300;font-style:italic;opacity:.96;
  margin:0 auto 26px;max-width:780px;
}
header.hero.compact .subtitle{font-size:16px;margin-bottom:0;}
.dates-pill{
  display:inline-block;
  font-size:16px;font-weight:600;letter-spacing:.5px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.4);
  padding:10px 24px;border-radius:30px;
  -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);
}
.venue-line{font-size:14px;margin-top:16px;opacity:.9;}

/* ===== NAV ===== */
nav{
  position:sticky;top:0;z-index:40;
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s;
}
nav.scrolled{box-shadow:0 6px 22px rgba(22,32,46,.10);}
nav ul{
  max-width:var(--maxw);margin:0 auto;padding:0;
  list-style:none;display:flex;flex-wrap:wrap;justify-content:center;
}
nav a{
  position:relative;display:block;
  font-size:17px;font-weight:500;letter-spacing:.3px;color:var(--ink);
  padding:17px 24px;
}
nav a::after{
  content:"";position:absolute;left:20px;right:20px;bottom:10px;height:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;
  transition:transform .25s;border-radius:2px;
}
nav a:hover{color:var(--accent);}
nav a:hover::after,nav a.active::after{transform:scaleX(1);}
nav a.active{color:var(--accent);font-weight:700;}

/* ===== CONTENT ===== */
main{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
section{padding:56px 0;border-bottom:1px solid var(--line);}
section:last-child{border-bottom:none;}
h2{
  font-family:"Fraunces","Georgia",serif;
  font-size:clamp(24px,3vw,32px);margin:0 0 8px;color:var(--ink);font-weight:600;
  letter-spacing:-.3px;
}
.rule{width:60px;height:4px;background:var(--grad);border-radius:3px;margin:0 0 26px;}
p{font-size:16.5px;}
section p:first-of-type{font-size:17.5px;}

/* reveal on scroll */
[data-reveal]{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease;}
[data-reveal].in{opacity:1;transform:none;}

/* ===== AT A GLANCE ===== */
.glance{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  background:var(--soft);border:1px solid var(--line);border-radius:16px;
  overflow:hidden;box-shadow:var(--shadow);margin-top:6px;
}
.glance .g{padding:24px 18px;text-align:center;border-right:1px solid var(--line);}
.glance .g:last-child{border-right:none;}
.glance .gv{font-family:"Fraunces",serif;font-size:24px;font-weight:600;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.glance .gl{font-size:12.5px;text-transform:uppercase;letter-spacing:1px;color:var(--muted);margin-top:6px;}

/* ===== ORGANIZERS ===== */
.org-list{list-style:none;padding:0;margin:8px 0 0;}
.org-list li{font-size:17px;padding:6px 0;}
.org-list .aff{color:var(--muted);}

/* ===== SPEAKERS ===== */
.pillar{margin-bottom:38px;}
.pillar h3{
  font-size:15px;letter-spacing:1px;text-transform:uppercase;font-weight:700;
  color:var(--accent2);margin:0 0 16px;display:flex;align-items:center;gap:12px;
}
.pillar h3::before{content:"";width:26px;height:3px;background:var(--grad);border-radius:2px;}
.spk-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(238px,1fr));gap:12px;}
.spk{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:13px 16px;box-shadow:0 4px 14px rgba(22,32,46,.05);
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.spk:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cfdcef;}
.spk .nm{display:block;font-weight:600;font-size:15px;}
.spk .af{display:block;color:var(--muted);font-size:13px;margin-top:2px;}
.note{
  background:#fff8ec;border:1px solid #f0d9a6;border-left:4px solid #e0a93b;
  border-radius:10px;padding:14px 18px;font-size:13.5px;color:#7a5a16;margin-bottom:24px;
}

/* ===== INFO / CARDS ===== */
.venue-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.info-box{
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px;
  box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s;
}
.info-box:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.info-box h4{
  font-size:13px;letter-spacing:1px;text-transform:uppercase;font-weight:700;
  color:var(--accent);margin:0 0 12px;display:flex;align-items:center;gap:8px;
}
.info-box p{margin:0 0 8px;font-size:15px;}

/* ===== QUICK LINKS ===== */
.quick-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:18px;margin-top:8px;}
.quick-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px;
  color:var(--ink);box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s,border-color .25s;
}
.quick-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:#cfdcef;color:var(--ink);}
.quick-card .qt{font-family:"Fraunces",serif;font-weight:600;font-size:18px;color:var(--accent);}
.quick-card:hover .qt{color:var(--accent2);}
.quick-card .qd{font-size:13.5px;color:var(--muted);margin-top:6px;}

/* ===== BUTTON / CTA ===== */
.btn{
  display:inline-block;margin-top:18px;
  font-weight:600;font-size:15px;letter-spacing:.3px;color:#fff;
  background:var(--grad);background-size:160% 100%;background-position:0 0;
  padding:13px 30px;border-radius:30px;
  box-shadow:0 10px 24px rgba(47,93,158,.32);
  transition:background-position .4s,transform .2s,box-shadow .2s;
}
.btn:hover{background-position:100% 0;color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(107,63,160,.38);}

/* ===== SCHEDULE TBA ===== */
.tba{
  text-align:center;padding:46px 24px;border:1.5px dashed var(--line);border-radius:16px;
  background:var(--soft);color:var(--muted);margin-top:10px;
}
.tba p:first-child{font-family:"Fraunces",serif;font-size:20px;color:var(--ink);margin-top:0;}

/* ===== FOOTER ===== */
footer{
  background:linear-gradient(180deg,#16213f,#0e1730);color:#c8d2e0;text-align:center;
  padding:40px 24px;font-size:13.5px;margin-top:10px;
}
footer a{color:#9db8e6;}
footer .dot{opacity:.45;margin:0 8px;}

@media(max-width:760px){
  .venue-grid{grid-template-columns:1fr;}
  .glance{grid-template-columns:1fr;}
  .glance .g{border-right:none;border-bottom:1px solid var(--line);}
  .glance .g:last-child{border-bottom:none;}
  section{padding:42px 0;}
}