:root{
  --cream:#F4EEE2;
  --cream-2:#EFE7D8;
  --card:#FCFAF4;
  --white:#ffffff;
  --ink:#1C1B19;
  --ink-soft:#2B2A27;
  --gray:#5C594F;
  --gray-2:#86827A;
  --red:#C1272D;
  --red-dark:#9E1C22;
  --red-tint:#F4E3DD;
  --line:rgba(28,27,25,0.10);
  --line-strong:rgba(28,27,25,0.18);
  --shadow:0 18px 50px -28px rgba(28,27,25,0.30);
  --maxw:1300px;
  --serif:'Fraunces',Georgia,serif;
  --sans:'Hanken Grotesk',-apple-system,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{
  font-family:var(--sans);
  background:var(--cream);
  color:var(--ink-soft);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:var(--red);color:#fff}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

h1,h2,h3,.serif{font-family:var(--serif);font-optical-sizing:auto;color:var(--ink);font-weight:500;letter-spacing:-0.015em;line-height:1.05}
.eyebrow{
  font-family:var(--sans);font-weight:700;font-size:12px;
  letter-spacing:0.22em;text-transform:uppercase;color:var(--red);
  display:inline-flex;align-items:center;gap:14px;
}
.eyebrow::after{content:"";width:46px;height:1.5px;background:var(--red)}
.eyebrow.center{justify-content:center}
.eyebrow.center::after{display:none}
.eyebrow.center::before{content:"";width:46px;height:1.5px;background:var(--red)}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px}
section{position:relative}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:12px;
  font-family:var(--sans);font-weight:600;font-size:16px;
  padding:16px 30px;border-radius:4px;cursor:pointer;border:1.5px solid transparent;
  transition:all .35s cubic-bezier(.2,.7,.3,1);letter-spacing:.01em;
  font-weight:800 !important;
}
.btn .arr{transition:transform .35s cubic-bezier(.2,.7,.3,1)}
.btn:hover .arr{transform:translateX(6px)}
.btn-primary{background:var(--red);color:#fff;box-shadow:0 10px 24px -12px rgba(193,39,45,.7)}
.btn-primary:hover{background:var(--red-dark);box-shadow:0 16px 30px -12px rgba(193,39,45,.8);transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--line-strong)}
.btn-outline:hover{border-color:var(--red);color:var(--red);transform:translateY(-2px)}

/* ---------- header ---------- */
header{
  position:sticky;top:0;z-index:100;
  background:rgba(244,238,226,.78);backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:border-color .3s,background .3s;
}
header.scrolled{border-bottom-color:var(--line);background:rgba(244,238,226,.6)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.logo{font-family:var(--serif);font-weight:600;font-size:20px;color:var(--ink);letter-spacing:-.02em;display:flex;align-items:center;gap:10px}
.logo b{color:var(--red);font-weight:600}
.logo .dot{width:7px;height:7px;background:var(--red);border-radius:50%;display:inline-block}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{font-size:14.5px;font-weight:500;color:var(--gray);position:relative;padding:4px 0;transition:color .25s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1.5px;background:var(--red);transition:width .3s}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{width:100%}
.nav-cta{background:var(--red);color:#fff!important;padding:10px 15px !important;border-radius:4px;font-weight:800 !important;font-size:14.5px;transition:all .3s}
.nav-cta::after{display:none!important}
.nav-cta:hover{background:var(--red-dark);transform:translateY(-1px)}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.burger span{width:24px;height:2px;background:var(--ink);transition:.3s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{display:none}

/* ---------- hero ---------- */
.hero{padding:74px 0 90px;overflow:hidden}
.hero .wrap{position:relative}
.hero-copy{position:relative}
.hero-copy > *{position:relative;z-index:1}
.hero h1{font-size:clamp(40px,5.4vw,56px);font-weight:600;width: 65%;margin:22px 0 26px}
.hero .lede{font-size:19px;color:var(--gray);max-width:600px;margin-bottom:34px;line-height:1.6}
.hero .lede::before{content:"";display:block;width:48px;height:2px;background:var(--red);margin-bottom:24px}
.meta{display:flex;flex-direction:column;gap:16px;margin-bottom:36px}
.meta-row{display:flex;align-items:center;gap:16px}
.meta-ic{width:46px;height:46px;border-radius:50%;background:var(--cream-2);display:grid;place-items:center;flex-shrink:0;border:1px solid var(--line)}
.meta-ic svg{width:21px;height:21px;stroke:var(--red);fill:none;stroke-width:1.6}
.meta-row b{font-weight:700;color:var(--ink);font-size:17px}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap}
.background_img{display:none}

/* ---------- context / problem ---------- */
.context{
  padding:96px 0;
  background:var(--cream-2);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.context .wrap{position:relative;z-index:1}
.context-grid{display:grid;grid-template-columns:minmax(0,.84fr) minmax(0,1.16fr);gap:30px;align-items:center}
.context h2{font-size:clamp(30px,3.6vw,46px);font-weight:600;margin:20px 0 22px}
.context p{color:var(--gray);font-size:18px;max-width:430px}
.hub{position:relative;height:470px;z-index:1}
.context-particles{
  position:absolute;
  right:0;
  bottom:0;
  width:min(64vw,980px);
  height:100%;
  z-index:0;
  pointer-events:none;
  opacity:.78;
  mask-image:linear-gradient(180deg, transparent 0, rgba(0,0,0,.9) 18%, #000 100%);
  -webkit-mask-image:linear-gradient(180deg, transparent 0, rgba(0,0,0,.9) 18%, #000 100%);
}
.context-particles::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 76% 70%, rgba(193,39,45,.08), transparent 24%),
    linear-gradient(270deg, rgba(239,231,216,0) 0%, rgba(239,231,216,.26) 52%, rgba(239,231,216,.78) 100%);
}
.orbital-timeline{
  position:relative;
  height:100%;
}
.orbital-scroll{
  position:relative;
  height:100%;
}
.orbital-core,
.orbital-card{
  position:absolute;
  z-index:2;
}
.orbital-core{
  top:50%;
  left:50%;
  width:214px;
  transform:translate(-50%,-50%);
  padding:24px 20px 22px;
  border-radius:20px;
  text-align:center;
  background:rgba(255,255,255,.88);
  border:1px solid rgba(193,39,45,.2);
  box-shadow:0 20px 36px -28px rgba(28,27,25,.34);
  backdrop-filter:blur(8px);
}
.orbital-card-label{
  display:inline-block;
  font-size:10px;
  font-weight:800;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--red);
}
.orbital-card{
  width:176px;
  padding:18px 18px 16px;
  border-radius:18px;
  background:rgba(255,255,255,.78);
  border:1px solid rgba(28,27,25,.08);
  box-shadow:0 18px 36px -28px rgba(28,27,25,.28);
  backdrop-filter:blur(10px);
  transition:transform .35s cubic-bezier(.2,.7,.3,1),box-shadow .35s,border-color .35s;
}
.orbital-card:hover{
  transform:translateY(-4px);
  border-color:rgba(193,39,45,.28);
  box-shadow:0 24px 44px -30px rgba(28,27,25,.34);
}
.orbital-core h3,
.orbital-card h3{
  font-family:var(--serif);
  font-size:19px;
  line-height:1.05;
  margin:12px 0 0;
  color:var(--ink);
}
.orbital-core h3{
  font-size:23px;
  line-height:1.08;
}
.orbital-card-a{top:28px;left:28px}
.orbital-card-b{top:18px;right:120px}
.orbital-card-c{top:148px;right:0}
.orbital-card-d{right:58px;bottom:26px}
.orbital-card-e{bottom:18px;left:126px}
.orbital-card-f{top:190px;left:8px}
/* ---------- value cards ---------- */
.value{padding:100px 0}
.sec-head{max-width:640px;margin-bottom:54px}
.sec-head.center{margin:0 auto 54px;text-align:center}
.sec-head h2{font-size:clamp(30px,3.6vw,46px);font-weight:600;margin-top:18px}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.vcard{
  background:var(--white);border:1px solid var(--line);border-radius:8px;padding:32px 28px;
  transition:transform .4s cubic-bezier(.2,.7,.3,1),box-shadow .4s,border-color .4s;
  position:relative;overflow:hidden;
}
.vcard::before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:var(--red);transform:scaleX(0);transform-origin:left;transition:transform .4s}
.vcard:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.vcard:hover::before{transform:scaleX(1)}
.vc-ic{width:48px;height:48px;margin-bottom:22px}
.vc-ic svg{width:100%;height:100%;stroke:var(--red);fill:none;stroke-width:1.4}
.vcard h3{font-size:21px;font-weight:600;margin-bottom:12px;line-height:1.2}
.vcard p{font-size:15px;color:var(--gray);line-height:1.6}
.vc-num{position:absolute;top:24px;right:26px;font-family:var(--serif);font-size:15px;color:var(--line-strong);font-weight:500}

/* ---------- modalities ---------- */
.modes{padding:100px 0;background:var(--cream-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.mode-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-bottom:42px}
.mcard{
  background:var(--card);border:1px solid var(--line);border-radius:10px;padding:44px 40px;
  transition:transform .4s cubic-bezier(.2,.7,.3,1),box-shadow .4s;position:relative;
}
.mcard:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.m-ic{width:84px;height:84px;border-radius:50%;background:var(--cream);display:grid;place-items:center;margin-bottom:30px;border:1px solid var(--line)}
.m-ic svg{width:38px;height:38px;stroke:var(--red);fill:none;stroke-width:1.3}
.mcard h3{font-family:var(--serif);font-size:30px;font-weight:500;line-height:1.05}
.m-tag{color:var(--red);font-weight:600;font-size:15px;margin:8px 0 18px;display:block}
.m-divider{width:60px;height:1.5px;background:var(--red);margin-bottom:20px}
.mcard p{color:var(--gray);font-size:16px;max-width:340px}
.mode-foot{text-align:center}

/* ---------- speaker ---------- */
.speaker{padding:100px 0;background:var(--cream-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.speaker-feature{display:grid;grid-template-columns:.85fr 1.15fr;gap:0;background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow);max-width:980px;margin:48px auto 0}
.sf-photo{position:relative;min-height:420px;background:var(--red);display:grid;place-items:end center;overflow:hidden}
.sf-portrait{width:100%;height:100%;object-fit:cover;object-position:center top;display:block}
.sf-body{padding:54px 50px;display:flex;flex-direction:column;justify-content:center}
.sf-body h3{font-family:var(--serif);font-size:clamp(28px,3.4vw,40px);font-weight:600;line-height:1.05}
.sf-role{color:var(--red);font-weight:600;font-size:16px;margin:10px 0 22px}
.sf-divider{width:60px;height:2px;background:var(--red);margin-bottom:24px}
.sf-body p{color:var(--gray);font-size:17px;line-height:1.7;max-width:480px}

/* ---------- organizers ---------- */
.org{padding:78px 0;text-align:center}
.org-line{display:flex;align-items:center;justify-content:center;gap:50px;flex-wrap:wrap;margin:30px 0 24px}
.org-line .name{font-family:var(--serif);font-size:clamp(22px,3vw,32px);color:var(--ink);font-weight:500;padding:0 30px}
.org p{max-width:560px;margin:0 auto;color:var(--gray);font-size:16px}
.logo{
  max-width: 150px;
  max-height: 100px;
  object-fit: contain;
  object-position: center;
}
/* ---------- final cta ---------- */
.final{padding:0}
.final-inner{background:var(--red);color:#fff;border-radius:0;padding:88px 0;position:relative;overflow:hidden}
.final-inner .wrap{position:relative;z-index:1}
.final-particles{
  position:absolute;
  inset:0;
  z-index:0;
  pointer-events:none;
  opacity:.95;
}
.final-particles::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 78% 30%, rgba(255,255,255,.14), transparent 24%),
    radial-gradient(circle at 18% 78%, rgba(255,255,255,.08), transparent 22%),
    linear-gradient(180deg, rgba(193,39,45,.08) 0%, rgba(193,39,45,.18) 100%);
}
.final-grid{display:flex;gap:30px;align-items:center}
.final h2{color:#fff;font-size:clamp(32px,4vw,52px);font-weight:600}
.final p{color:rgba(255,255,255,.88);font-size:18px;margin:22px 0 0;max-width:520px}
.final .btn-light{background:#fff;color:var(--red);box-shadow:0 12px 30px -14px rgba(0,0,0,.4)}
.final .btn-light:hover{transform:translateY(-3px);box-shadow:0 18px 36px -14px rgba(0,0,0,.45)}
.final-copy{display:flex;flex-direction:column;align-items:flex-start}
.final-cta-toggle{display:none;margin-top:30px}
.final-right{display:flex;justify-content:flex-end}
.final-embed{display:block;}

/* ---------- footer ---------- */
footer{background:var(--ink);border-top:2px solid var(--red);padding:54px 0 34px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;margin-bottom:40px}
.foot-logo{font-family:var(--serif);font-size:22px;color:var(--cream);font-weight:600;margin-bottom:14px}
.foot-org{color:rgba(244,238,226,.8);font-size:15px;line-height:1.9}
.foot-col h4{font-size:13px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--cream);margin-bottom:16px}
.foot-col a{display:block;color:rgba(244,238,226,.8);font-size:15px;padding:5px 0;transition:color .25s}
.foot-col a:hover{color:#fff}
.foot-bottom{border-top:1px solid rgba(244,238,226,.16);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13px;color:rgba(244,238,226,.58)}

/* ---------- reveal anim ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s cubic-bezier(.2,.7,.3,1),transform .8s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}
[data-d="1"]{transition-delay:.08s}[data-d="2"]{transition-delay:.16s}
[data-d="3"]{transition-delay:.24s}[data-d="4"]{transition-delay:.32s}

/* ---------- responsive ---------- */
@media(max-width:1279px){
  .final-grid{display:block}
  .final-right{display:none}
  .final-embed{display:none}
  .final-cta-toggle{display:inline-flex}
}
@media(min-width:1280px){
  .final-right{display:flex}
  .final-cta-toggle{display:none}
}
@media(max-width:980px){
  .context-grid{grid-template-columns:1fr;gap:40px}
  .cards{grid-template-columns:1fr 1fr}
  .speaker-feature{grid-template-columns:1fr}
  .sf-photo{min-height:340px}
  .final-right{justify-content:flex-start}
  .context-particles{display:none}
  .hub{height:540px}
  .orbital-card-a{top:24px;left:24px}
  .orbital-card-b{top:22px;right:24px}
  .orbital-card-c{top:170px;right:16px}
  .orbital-card-d{right:56px;bottom:24px}
  .orbital-card-e{bottom:18px;left:54px}
  .orbital-card-f{top:174px;left:12px}
}
@media(min-width:981px){
  .background_img{
    display:block;
    position:absolute;
    right:0;
    bottom:0;
    z-index:0;
    width:min(100%,800px);
    aspect-ratio:874/742;
    background:url("assets/uao-labs.webp") right bottom / contain no-repeat;
    pointer-events:none;
  }
}
@media(max-width:680px){
  body{font-size:16px}
  .wrap{padding:0 22px}
  .nav-links{display:none}
  .burger{display:flex}
  .mobile-menu{display:block;position:fixed;inset:74px 0 auto 0;background:var(--cream);border-bottom:1px solid var(--line);
    padding:18px 22px 26px;transform:translateY(-100vh);transition:transform .4s cubic-bezier(.2,.7,.3,1);z-index:99;height: calc(100vh - 74px);overflow-y: auto;}
  .mobile-menu.open{transform:translateY(0)}
  .mobile-menu a{display:block;padding:13px 0;font-size:16px;border-bottom:1px solid var(--line);color:var(--gray)}
  .mobile-menu .nav-cta{display:inline-flex;margin-top:16px;border-bottom:none}
  .cards,.mode-grid,.foot-grid{grid-template-columns:1fr}
  .hero{padding:48px 0 60px}
  .hero h1{width:100%}
  .context-grid{gap:28px}
  .hub{
    height:auto;
    width:100vw;
    margin-left:calc(50% - 50vw);
  }
  .orbital-timeline{
    overflow-x:auto;
    overflow-y:hidden;
    min-height:unset;
    padding:0;
    -webkit-overflow-scrolling:touch;
    scrollbar-width:none;
  }
  .orbital-timeline::-webkit-scrollbar{display:none}
  .orbital-scroll{
    display:flex;
    gap:14px;
    min-width:max-content;
    padding:0 22px 8px;
  }
  .orbital-core,
  .orbital-card{
    position:relative;
    inset:auto;
    width:min(82vw,280px);
    flex:0 0 auto;
    transform:none;
  }
  .orbital-core{order:-1}
  .orbital-core h3{font-size:20px}
  .orbital-card h3{font-size:19px}
  .org-line .name{padding:0 16px;font-size:22px}
  section{scroll-margin-top:70px}
}