:root{
  --bg:#0A1628;
  --bg-alt:#0F2038;
  --bg-alt2:#122642;
  --paper:#F3EFE3;
  --paper-line:rgba(10,22,40,0.12);
  --ink:#0A1628;
  --ink-soft:rgba(10,22,40,0.68);
  --cream:rgba(243,239,227,0.92);
  --cream-soft:rgba(243,239,227,0.62);
  --cream-faint:rgba(243,239,227,0.38);
  --gold:#E8A33D;
  --gold-soft:rgba(232,163,61,0.16);
  --teal:#35D0B0;
  --teal-soft:rgba(53,208,176,0.16);
  --line:rgba(243,239,227,0.14);
  --radius:2px;
  --maxw:1180px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--cream);
  font-family:'Inter',sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:'Fraunces',serif;
  font-weight:600;
  margin:0;
  letter-spacing:-0.01em;
}
.mono{font-family:'IBM Plex Mono',monospace;}
a{color:inherit;text-decoration:none;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;}
img{max-width:100%;display:block;}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;}

header.site-nav{
  position:sticky;top:0;z-index:100;
  background:rgba(10,22,40,0.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  max-width:var(--maxw);margin:0 auto;padding:16px 28px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;font-family:'Fraunces',serif;font-weight:600;font-size:1.05rem;letter-spacing:0.01em;}
.brand .node-dot{width:9px;height:9px;border-radius:50%;background:var(--teal);box-shadow:0 0 8px var(--teal);flex:none;}
.brand small{display:block;font-family:'IBM Plex Mono',monospace;font-size:0.62rem;letter-spacing:0.12em;color:var(--cream-soft);font-weight:500;text-transform:uppercase;margin-top:2px;}
nav.links{display:flex;gap:28px;font-size:0.86rem;font-weight:500;}
nav.links a{color:var(--cream-soft);position:relative;padding:4px 0;transition:color .15s;}
nav.links a:hover{color:var(--cream);}
.nav-cta{
  font-family:'IBM Plex Mono',monospace;font-size:0.72rem;font-weight:600;letter-spacing:0.06em;text-transform:uppercase;
  background:var(--gold);color:#1a1204;padding:9px 16px;border-radius:var(--radius);white-space:nowrap;
  transition:transform .15s, box-shadow .15s;
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 6px 18px rgba(232,163,61,0.35);}

.hero{position:relative;overflow:hidden;padding:96px 0 72px;border-bottom:1px solid var(--line);}
#node-canvas{position:absolute;inset:0;width:100%;height:100%;opacity:0.55;pointer-events:none;}
.hero-inner{position:relative;z-index:2;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:'IBM Plex Mono',monospace;font-size:0.72rem;letter-spacing:0.14em;text-transform:uppercase;
  color:var(--teal);border:1px solid rgba(53,208,176,0.35);background:var(--teal-soft);
  padding:6px 12px;border-radius:100px;margin-bottom:26px;
}
.hero h1{
  font-size:clamp(2.4rem,5.4vw,4.4rem);
  line-height:1.04;color:var(--cream);max-width:15ch;
}
.hero h1 em{font-style:italic;color:var(--gold);}
.hero .theme{
  margin-top:22px;font-size:clamp(1.05rem,1.6vw,1.3rem);color:var(--cream-soft);max-width:46ch;font-weight:400;
}
.hero-meta{display:flex;flex-wrap:wrap;gap:28px;margin-top:40px;}
.hero-meta div{display:flex;flex-direction:column;gap:4px;}
.hero-meta .k{font-family:'IBM Plex Mono',monospace;font-size:0.68rem;letter-spacing:0.1em;text-transform:uppercase;color:var(--cream-faint);}
.hero-meta .v{font-size:0.98rem;color:var(--cream);font-weight:500;}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;margin-top:44px;}
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:13px 24px;border-radius:var(--radius);
  font-weight:600;font-size:0.92rem;transition:transform .15s,box-shadow .15s,background .15s;
  border:1px solid transparent;cursor:pointer;
}
.btn-primary{background:var(--gold);color:#1a1204;}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(232,163,61,0.3);}
.btn-ghost{border-color:var(--line);color:var(--cream);}
.btn-ghost:hover{border-color:var(--cream-soft);background:rgba(243,239,227,0.05);}

.stat-bar{border-top:1px solid var(--line);margin-top:64px;position:relative;z-index:2;}
.stat-bar .wrap{display:grid;grid-template-columns:repeat(4,1fr);}
.stat{padding:26px 0;border-right:1px solid var(--line);}
.stat:last-child{border-right:none;}
.stat .num{font-family:'Fraunces',serif;font-size:2.1rem;color:var(--gold);}
.stat .lab{font-family:'IBM Plex Mono',monospace;font-size:0.68rem;letter-spacing:0.08em;text-transform:uppercase;color:var(--cream-soft);margin-top:4px;}

section{padding:96px 0;}
section.on-paper{background:var(--paper);color:var(--ink);border-bottom:1px solid var(--paper-line);}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:52px;flex-wrap:wrap;}
.section-head .tag{
  font-family:'IBM Plex Mono',monospace;font-size:0.72rem;letter-spacing:0.14em;text-transform:uppercase;color:var(--teal);
  display:block;margin-bottom:14px;
}
section.on-paper .section-head .tag{color:#0E7A63;}
.section-head h2{font-size:clamp(1.8rem,3.2vw,2.6rem);max-width:20ch;}
.section-head p.lede{max-width:38ch;color:var(--cream-soft);font-size:0.98rem;}
section.on-paper .section-head p.lede{color:var(--ink-soft);}

.about-grid{display:grid;grid-template-columns:1.1fr 0.9fr;gap:60px;}
.about-grid p{color:var(--ink-soft);margin:0 0 18px;font-size:1.02rem;}
.about-grid .lead-p{font-size:1.18rem;color:var(--ink);font-weight:500;line-height:1.5;}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;}
.chip{
  font-family:'IBM Plex Mono',monospace;font-size:0.74rem;letter-spacing:0.02em;
  border:1px solid var(--paper-line);padding:7px 13px;border-radius:100px;color:var(--ink);background:#fff;
}
.info-card{background:var(--ink);color:var(--cream);padding:30px 28px;border-radius:var(--radius);}
.info-card h4{font-size:1rem;color:var(--gold);font-family:'IBM Plex Mono',monospace;letter-spacing:0.04em;text-transform:uppercase;font-weight:600;margin-bottom:16px;}
.info-card ul{margin:0 0 26px;padding-left:18px;}
.info-card ul:last-of-type{margin-bottom:0;}
.info-card li{margin-bottom:9px;color:var(--cream-soft);font-size:0.93rem;}
.info-card li::marker{color:var(--teal);}

.filter-bar{display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;margin-bottom:36px;}
.day-tabs{display:flex;gap:6px;flex-wrap:wrap;}
.day-tab{
  font-family:'IBM Plex Mono',monospace;font-size:0.78rem;font-weight:500;padding:9px 16px;border-radius:100px;
  border:1px solid var(--line);color:var(--cream-soft);cursor:pointer;background:transparent;transition:all .15s;
}
.day-tab.active{background:var(--teal);border-color:var(--teal);color:#04211b;font-weight:600;}
.day-tab:hover:not(.active){border-color:var(--cream-soft);color:var(--cream);}
.topic-chips{display:flex;flex-wrap:wrap;gap:8px;}
.topic-chip{
  font-family:'IBM Plex Mono',monospace;font-size:0.7rem;letter-spacing:0.03em;padding:7px 13px;border-radius:100px;
  border:1px solid var(--line);color:var(--cream-faint);cursor:pointer;background:transparent;transition:all .15s;
}
.topic-chip.active{border-color:var(--gold);color:var(--gold);background:var(--gold-soft);}
.topic-chip:hover:not(.active){color:var(--cream);}

.agenda-day{display:none;}
.agenda-day.visible{display:block;}
.day-label{
  font-family:'IBM Plex Mono',monospace;font-size:0.78rem;color:var(--cream-faint);letter-spacing:0.1em;text-transform:uppercase;
  margin:30px 0 14px;padding-top:26px;border-top:1px solid var(--line);
}
.day-label:first-child{margin-top:0;border-top:none;padding-top:0;}
.session{
  display:grid;grid-template-columns:52px 1fr auto;gap:20px;align-items:start;
  padding:18px 0;border-bottom:1px solid var(--line);transition:opacity .2s;
}
.session.hidden{display:none;}
.session .idx{font-family:'IBM Plex Mono',monospace;color:var(--gold);font-size:0.85rem;padding-top:3px;}
.session .body h4{font-size:1.05rem;color:var(--cream);font-weight:600;margin-bottom:6px;font-family:'Inter',sans-serif;}
.session .body .facil{font-size:0.86rem;color:var(--cream-soft);}
.session .tags{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end;max-width:180px;}
.session .tags span{
  font-family:'IBM Plex Mono',monospace;font-size:0.62rem;letter-spacing:0.05em;text-transform:uppercase;
  padding:4px 8px;border-radius:100px;background:var(--bg-alt2);color:var(--cream-soft);white-space:nowrap;
}
@media(max-width:640px){
  .session{grid-template-columns:32px 1fr;}
  .session .tags{grid-column:1/-1;justify-content:flex-start;max-width:none;margin-top:8px;}
}

.track-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.track-card{background:var(--bg);padding:36px 30px;}
.track-card .tk{font-family:'IBM Plex Mono',monospace;color:var(--teal);font-size:0.72rem;letter-spacing:0.1em;text-transform:uppercase;}
.track-card h3{margin-top:14px;font-size:1.35rem;color:var(--cream);}
.track-card p{color:var(--cream-soft);font-size:0.92rem;margin-top:12px;}
.track-card .facils{margin-top:20px;padding-top:16px;border-top:1px solid var(--line);font-size:0.82rem;color:var(--cream-faint);}

.past-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.past-card{background:var(--bg-alt);padding:32px 28px;display:flex;flex-direction:column;}
.past-card .ed{font-family:'IBM Plex Mono',monospace;color:var(--gold);font-size:0.72rem;letter-spacing:0.1em;text-transform:uppercase;}
.past-card .yr{font-family:'IBM Plex Mono',monospace;color:var(--cream-faint);font-size:0.72rem;margin-top:4px;display:block;}
.past-card h3{margin-top:14px;font-size:1.2rem;color:var(--cream);line-height:1.3;}
.past-card p{color:var(--cream-soft);font-size:0.88rem;margin-top:12px;flex:1;}
.past-card .highlights{list-style:none;padding:0;margin:16px 0 0;border-top:1px solid var(--line);padding-top:14px;}
.past-card .highlights li{font-size:0.8rem;color:var(--cream-faint);padding:4px 0;}
.past-card .highlights li::before{content:"— ";color:var(--teal);}
.past-card .plink{margin-top:16px;font-size:0.8rem;color:var(--teal);font-weight:600;}
.past-card .plink a{color:inherit;text-decoration:underline;}

.reg-form{display:flex;flex-direction:column;padding-bottom:80px;}
.reg-form label{font-family:'IBM Plex Mono',monospace;font-size:0.76rem;letter-spacing:0.03em;color:var(--ink-soft);margin:18px 0 6px;font-weight:600;}
.reg-form label:first-of-type{margin-top:0;}
.reg-form input[type=text], .reg-form input[type=email], .reg-form select, .reg-form textarea{
  width:100%;padding:12px 14px;background:#fff;border:1px solid var(--paper-line);border-radius:2px;
  color:var(--ink);font-size:0.95rem;font-family:'Inter',sans-serif;
}
.reg-form select{appearance:none;background-image:linear-gradient(45deg, transparent 50%, var(--ink-soft) 50%), linear-gradient(135deg, var(--ink-soft) 50%, transparent 50%);background-position:calc(100% - 20px) center, calc(100% - 15px) center;background-size:5px 5px, 5px 5px;background-repeat:no-repeat;}
.reg-form textarea{resize:vertical;min-height:90px;}
.reg-hp{position:absolute;left:-9999px;top:-9999px;}
.reg-flash{padding:18px 20px;border-radius:2px;font-size:0.92rem;margin-bottom:8px;}
.reg-flash-ok{background:var(--teal-soft);border:1px solid var(--teal);color:#0E5F4C;}
.reg-flash-err{background:rgba(224,91,79,0.12);border:1px solid #C2493D;color:#8F2E24;}

.speaker-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1px;background:var(--paper-line);border:1px solid var(--paper-line);}
.speaker-card{background:var(--paper);padding:26px 24px;}
.speaker-card .n{font-family:'IBM Plex Mono',monospace;font-size:0.7rem;color:#0E7A63;}
.speaker-card h4{font-size:1.05rem;margin-top:10px;color:var(--ink);}
.speaker-card .role{font-size:0.83rem;color:var(--ink-soft);margin-top:6px;}
.speaker-card .sess{font-size:0.78rem;color:#0E7A63;margin-top:12px;font-weight:600;}

.community-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;}
.award-list{list-style:none;padding:0;margin:24px 0 0;display:flex;gap:14px;flex-wrap:wrap;}
.award-list li{
  background:var(--bg-alt2);border:1px solid var(--line);border-radius:var(--radius);padding:16px 20px;flex:1;min-width:140px;
}
.award-list .place{font-family:'IBM Plex Mono',monospace;font-size:0.68rem;color:var(--cream-faint);text-transform:uppercase;letter-spacing:0.08em;}
.award-list .amt{font-family:'Fraunces',serif;font-size:1.5rem;color:var(--gold);margin-top:6px;}
.pillar-list{list-style:none;padding:0;margin-top:20px;}
.pillar-list li{display:flex;gap:14px;padding:14px 0;border-top:1px solid var(--line);}
.pillar-list li:first-child{border-top:none;}
.pillar-list .pn{font-family:'IBM Plex Mono',monospace;color:var(--teal);font-size:0.8rem;flex:none;width:26px;}

.attend-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--paper-line);border:1px solid var(--paper-line);margin-top:10px;}
.attend-card{background:var(--paper);padding:34px 30px;}
.attend-card h4{font-family:'IBM Plex Mono',monospace;font-size:0.75rem;text-transform:uppercase;letter-spacing:0.08em;color:#0E7A63;margin-bottom:16px;}
.attend-card p, .attend-card li{color:var(--ink-soft);font-size:0.94rem;}
.attend-card ul{padding-left:18px;margin:0;}
.attend-card li{margin-bottom:8px;}
.register-panel{
  margin-top:56px;background:var(--ink);color:var(--cream);padding:44px 40px;border-radius:var(--radius);
  display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap;
}
.register-panel h3{font-size:1.5rem;max-width:22ch;}
.register-panel p{color:var(--cream-soft);margin-top:10px;max-width:40ch;font-size:0.92rem;}

.org-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;margin-top:10px;}
.org-grid h4{font-family:'IBM Plex Mono',monospace;font-size:0.72rem;text-transform:uppercase;letter-spacing:0.1em;color:var(--cream-faint);margin-bottom:18px;}
.org-row{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-top:1px solid var(--line);font-size:0.9rem;}
.org-row:first-of-type{border-top:none;}
.org-row .role{color:var(--cream-faint);font-size:0.82rem;}
.loc-list{list-style:none;padding:0;margin:0;counter-reset:loc;}
.loc-list li{counter-increment:loc;padding:10px 0;border-top:1px solid var(--line);font-size:0.88rem;color:var(--cream-soft);display:flex;gap:12px;}
.loc-list li:first-child{border-top:none;}
.loc-list li::before{content:counter(loc);font-family:'IBM Plex Mono',monospace;color:var(--gold);flex:none;width:16px;}

.vision-strip{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:70px 0;}
.vision-strip blockquote{
  font-family:'Fraunces',serif;font-style:italic;font-size:clamp(1.4rem,2.6vw,2rem);color:var(--cream);max-width:26ch;
  margin:0;line-height:1.4;
}
.vision-strip cite{display:block;font-style:normal;font-family:'IBM Plex Mono',monospace;font-size:0.78rem;color:var(--cream-soft);margin-top:20px;}

footer{padding:64px 0 40px;}
.footer-top{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;padding-bottom:40px;border-bottom:1px solid var(--line);}
.footer-brand h3{font-size:1.3rem;}
.footer-brand p{color:var(--cream-soft);max-width:32ch;margin-top:10px;font-size:0.88rem;}
.footer-cols{display:flex;gap:56px;flex-wrap:wrap;}
.footer-col h5{font-family:'IBM Plex Mono',monospace;font-size:0.68rem;text-transform:uppercase;letter-spacing:0.1em;color:var(--cream-faint);margin-bottom:14px;}
.footer-col a{display:block;color:var(--cream-soft);font-size:0.88rem;margin-bottom:9px;}
.footer-col a:hover{color:var(--gold);}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:26px;font-size:0.78rem;color:var(--cream-faint);}

@media(max-width:900px){
  nav.links{display:none;}
  .about-grid,.community-grid,.org-grid,.attend-grid{grid-template-columns:1fr;}
  .attend-grid{grid-template-columns:1fr;}
  .track-grid{grid-template-columns:1fr;}
  .past-grid{grid-template-columns:1fr;}
  .stat:nth-child(2){border-right:none;}
}