:root{
  --bg:#f4f7fb;
  --surface:#ffffff;
  --surface-2:#eef4ff;
  --surface-3:#f8fbff;
  --text:#142033;
  --muted:#5b677a;
  --line:#d7e0ef;
  --primary:#2453c4;
  --primary-2:#6f92e7;
  --accent:#15aabf;
  --shadow:0 18px 40px rgba(20,32,51,.08);
  --radius-xl:28px;
  --radius-lg:22px;
  --radius-md:16px;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at top left, rgba(111,146,231,.12), transparent 28%),
    radial-gradient(circle at top right, rgba(21,170,191,.08), transparent 20%),
    linear-gradient(180deg,#f9fbff 0%,var(--bg) 100%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{width:min(calc(100% - 32px), var(--max));margin:0 auto}
.site-header{
  position:sticky;top:0;z-index:100;
  backdrop-filter: blur(16px);
  background:rgba(249,251,255,.82);
  border-bottom:1px solid rgba(215,224,239,.85);
}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:72px}
.brand{font-weight:800;letter-spacing:.02em}
.primary-nav{display:flex;gap:18px;align-items:center}
.primary-nav a{color:var(--muted);font-weight:600;font-size:14px}
.primary-nav a:hover{color:var(--primary)}
.menu-toggle{
  display:none;border:1px solid var(--line);background:#fff;border-radius:12px;
  padding:10px 14px;font:inherit;font-weight:700
}
.hero{padding:42px 0 28px}
.hero-grid{display:grid;grid-template-columns:1.25fr .85fr;gap:24px;align-items:stretch}
.hero-copy,.hero-logos,.panel,.wide-panel,.toc-card,.stat-card,.info-card,.day-card,.session-card,.next-step-card,.letter-card,.contact-card,.symposium-card{
  background:var(--surface);
  border:1px solid rgba(215,224,239,.9);
  box-shadow:var(--shadow);
}
.hero-copy{padding:30px;border-radius:var(--radius-xl)}
.eyebrow{
  margin:0 0 10px;text-transform:uppercase;letter-spacing:.12em;
  font-size:12px;font-weight:800;color:var(--primary)
}
.eyebrow.small{font-size:11px}
.hero h1{margin:0;font-size:clamp(32px,5vw,58px);line-height:1.02}
.lead{margin:16px 0 0;color:var(--muted);font-size:clamp(17px,2vw,20px);max-width:42rem}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-meta span{
  display:inline-flex;align-items:center;min-height:42px;padding:0 14px;border-radius:999px;
  background:var(--surface-2);color:var(--primary);border:1px solid rgba(111,146,231,.26);font-weight:700;font-size:14px;
}
.hero-logos{
  border-radius:var(--radius-xl);padding:24px;
  display:grid;grid-template-columns:1fr 1fr;gap:16px;align-content:start
}
.logo-slot,.sponsor-slot{
  min-height:140px;border:2px dashed rgba(36,83,196,.28);border-radius:20px;
  display:grid;place-items:center;background:linear-gradient(180deg,#f8fbff,#eef4ff);color:var(--primary);font-weight:700;text-align:center;padding:12px
}
.logo-note{grid-column:1/-1;margin:0;color:var(--muted);font-size:14px}
.section{padding:18px 0 32px}
.section-soft{padding:18px 0 36px}
.section-heading{margin-bottom:20px}
.section-heading h2{margin:0 0 8px;font-size:clamp(28px,3.6vw,42px);line-height:1.08}
.section-heading p:last-child{margin:0;color:var(--muted);max-width:52rem}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat-card{border-radius:24px;padding:22px}
.stat-kicker{
  display:block;font-size:12px;text-transform:uppercase;letter-spacing:.1em;
  color:var(--accent);font-weight:800;margin-bottom:10px
}
.stat-card strong{display:block;font-size:22px;margin-bottom:10px}
.stat-card p{margin:0;color:var(--muted)}
.toc-card{margin-top:18px;border-radius:24px;padding:24px}
.toc-card h3{margin:0 0 14px;font-size:22px}
.toc-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.toc-grid a{
  border:1px solid var(--line);border-radius:16px;padding:14px 16px;
  font-weight:600;background:#fbfdff
}
.content-grid.two-col{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.content-grid.three-col{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.panel,.wide-panel,.letter-card,.contact-card{border-radius:24px;padding:24px}
.wide-panel{margin-top:16px}
.wide-panel-head{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;margin-bottom:14px}
.wide-panel-head h3{margin:0}
.wide-panel-head p{margin:0;color:var(--muted);max-width:38rem}
.panel h3,.letter-card h3,.contact-card h3{margin-top:0;margin-bottom:14px}
.panel p:last-child,.letter-card p:last-child,.contact-card p:last-child{margin-bottom:0}
.clean-list{margin:0;padding-left:18px}
.clean-list li + li{margin-top:10px}
.clean-list.multi-col{columns:2;column-gap:24px}
.chip-list{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.chip-list li{
  border:1px solid var(--line);background:var(--surface-3);padding:10px 14px;border-radius:999px;font-weight:600
}
.letter-card p{color:var(--muted);line-height:1.7}
.signature{margin-top:18px;color:var(--text)!important;font-weight:700}
.signature span{font-weight:500;color:var(--muted)}
.info-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.info-card{border-radius:22px;padding:22px}
.info-card h3{margin:0 0 8px;font-size:18px}
.info-card p{margin:0;color:var(--muted)}
.contact-card{margin-top:16px;background:linear-gradient(180deg,#fbfdff,#ffffff)}
.day-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.day-card{border-radius:24px;padding:22px}
.day-top{padding-bottom:14px;margin-bottom:14px;border-bottom:1px solid var(--line)}
.day-label{
  display:inline-block;margin-bottom:8px;
  color:var(--primary);font-size:12px;text-transform:uppercase;letter-spacing:.1em;font-weight:800
}
.schedule-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.schedule-list li{display:grid;grid-template-columns:104px 1fr;gap:12px}
.time{
  display:inline-flex;justify-content:center;align-items:flex-start;
  padding-top:2px;font-weight:800;color:var(--primary);font-size:13px
}
.schedule-list strong{display:block;margin-bottom:3px}
.schedule-list p{margin:0;color:var(--muted);font-size:14px}
.session-stack{display:grid;gap:18px}
.session-card{border-radius:28px;padding:24px}
.session-head{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:18px}
.session-meta{margin:0 0 8px;color:var(--primary);font-weight:700;font-size:14px}
.session-head h3{margin:0;font-size:32px;line-height:1.08}
.session-subtitle{margin:10px 0 0;color:var(--muted);max-width:56rem}
.session-chairs{margin:14px 0 0;font-size:14px;color:#324056}
.session-chairs span{font-weight:800;color:var(--text)}
.timeline{list-style:none;margin:0;padding:0;display:grid;gap:16px}
.timeline li{display:grid;grid-template-columns:118px 1fr;gap:14px}
.timeline-time{font-size:13px;font-weight:800;color:var(--accent);padding-top:4px}
.timeline-body{
  position:relative;padding:16px 16px 16px 18px;border-radius:18px;
  background:#fbfdff;border:1px solid var(--line)
}
.timeline-body::before{
  content:"";position:absolute;left:-8px;top:22px;width:12px;height:12px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 4px rgba(36,83,196,.12)
}
.timeline-body h4{margin:0 0 6px;font-size:18px;line-height:1.28}
.timeline-body .speaker{margin:0;color:#455267;font-weight:600;font-size:14px}
.symposia-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.symposium-card{border-radius:24px;padding:22px}
.symposium-brand{
  display:inline-flex;min-height:34px;align-items:center;padding:0 12px;border-radius:999px;
  background:var(--surface-2);color:var(--primary);font-weight:800;font-size:12px;letter-spacing:.08em;text-transform:uppercase
}
.symposium-card h3{margin:14px 0 10px;font-size:22px;line-height:1.2}
.symposium-speaker{margin:0 0 10px;font-weight:600;color:#37445a}
.symposium-meta{margin:0;color:var(--muted)}
.sponsor-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.next-step-card{border-radius:28px;padding:26px}
.next-step-card h2{margin:0 0 10px}
.next-step-card p{margin:0;color:var(--muted);line-height:1.7}

@media (max-width: 1080px){
  .hero-grid,.stats-grid,.day-grid,.content-grid.three-col,.symposia-grid,.sponsor-grid{grid-template-columns:1fr 1fr}
  .content-grid.two-col,.info-grid{grid-template-columns:1fr}
}
@media (max-width: 760px){
  .menu-toggle{display:inline-flex}
  .primary-nav{
    position:absolute;left:16px;right:16px;top:72px;
    background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);
    padding:12px;display:none;flex-direction:column;align-items:flex-start;
  }
  .primary-nav.open{display:flex}
  .hero-grid,.stats-grid,.day-grid,.toc-grid,.content-grid.three-col,.symposia-grid,.sponsor-grid{grid-template-columns:1fr}
  .hero-copy,.hero-logos,.panel,.wide-panel,.toc-card,.stat-card,.info-card,.day-card,.session-card,.next-step-card,.letter-card,.contact-card,.symposium-card{
    border-radius:22px
  }
  .hero-copy{padding:24px}
  .hero-logos{padding:18px}
  .schedule-list li,.timeline li{grid-template-columns:1fr}
  .time,.timeline-time{justify-content:flex-start}
  .timeline-body::before{left:18px;top:-8px}
  .session-head{flex-direction:column}
  .clean-list.multi-col{columns:1}
  .section{padding:16px 0 24px}
}


.logo-link{
  border-style:solid;
  border-color:rgba(215,224,239,.9);
  text-decoration:none;
}
.logo-link img{
  max-width:100%;
  max-height:96px;
  object-fit:contain;
  filter:drop-shadow(0 8px 18px rgba(20,32,51,.08));
}
.hero-logos .logo-link{
  min-height:168px;
  background:#fff;
}
.hero-logos .logo-link img{
  max-height:86px;
}
.sponsor-grid .logo-link{
  min-height:150px;
  background:#fff;
  padding:18px;
}
.sponsor-grid .logo-link img{
  max-height:82px;
}
@media print{
  .site-header,.menu-toggle{display:none !important}
  body{background:#fff}
  .hero,.section,.section-soft{padding:10px 0 18px}
  .hero-copy,.hero-logos,.panel,.wide-panel,.toc-card,.stat-card,.info-card,.day-card,.session-card,.letter-card,.contact-card,.symposium-card,.sponsor-slot{
    box-shadow:none !important;
    break-inside:avoid;
  }
  a[href]::after{content:""}
}
.center {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 50%; /* Optional: Adjust width as needed */
}