:root {
  --ink: #07111f;
  --muted: #5f6977;
  --paper: #f4f5f2;
  --white: #ffffff;
  --blue: #3168ff;
  --blue-deep: #163fd6;
  --cyan: #71e5ff;
  --lime: #c9ff52;
  --line: rgba(7, 17, 31, 0.13);
  --pad: clamp(22px, 5vw, 78px);
  --display: "Arial Narrow", "Roboto Condensed", "Helvetica Neue", Arial, sans-serif;
  --body: Inter, "Segoe UI", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
::selection { color: var(--ink); background: var(--lime); }

.page-grain {
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.86' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.9'/%3E%3C/svg%3E");
}

.site-header {
  position: fixed;
  z-index: 90;
  top: 0;
  left: 0;
  right: 0;
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--pad);
  color: var(--white);
  border-bottom: 1px solid rgba(255,255,255,.18);
  transition: background .3s ease, color .3s ease, border-color .3s ease;
}
.site-header.scrolled {
  color: var(--ink);
  background: rgba(244,245,242,.92);
  border-color: var(--line);
  backdrop-filter: blur(18px);
}
.brand { display: flex; align-items: center; gap: 12px; font-size: 13px; font-weight: 800; letter-spacing: .15em; }
.brand-mark { width: 24px; height: 24px; position: relative; display: inline-block; }
.brand-mark i { position: absolute; width: 7px; border-radius: 9px; background: currentColor; transform: rotate(34deg); }
.brand-mark i:nth-child(1) { height: 16px; left: 1px; top: 4px; }
.brand-mark i:nth-child(2) { height: 23px; left: 9px; top: 0; }
.brand-mark i:nth-child(3) { height: 12px; left: 17px; top: 7px; }
.main-nav { display: flex; align-items: center; gap: clamp(20px, 3vw, 44px); font-size: 12px; font-weight: 700; letter-spacing: .05em; }
.main-nav > a:not(.nav-cta) { position: relative; padding: 8px 0; }
.main-nav > a:not(.nav-cta)::after { content:""; position:absolute; left:0; right:100%; bottom:2px; height:1px; background:currentColor; transition:right .25s ease; }
.main-nav > a:hover::after { right:0; }
.nav-cta { display:flex; align-items:center; gap:22px; border:1px solid currentColor; border-radius:99px; padding:11px 15px 11px 18px; }
.menu-button { display:none; background:none; color:inherit; border:0; width:40px; height:40px; position:relative; }
.menu-button span { position:absolute; width:20px; height:1px; right:8px; background:currentColor; transition:.25s ease; }
.menu-button span:first-child { top:15px; }
.menu-button span:last-child { top:23px; width:14px; }

.hero {
  min-height: 100svh;
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(270px, .65fr);
  align-items: end;
  gap: 48px;
  padding: clamp(140px, 16vh, 190px) var(--pad) clamp(110px, 14vh, 150px);
  color: var(--white);
  background:
    radial-gradient(circle at 74% 36%, rgba(113,229,255,.18), transparent 25%),
    radial-gradient(circle at 62% 120%, rgba(49,104,255,.55), transparent 42%),
    linear-gradient(118deg, #07111f 0%, #0b1a35 47%, #07111f 100%);
}
.network-canvas { position:absolute; inset:0; width:100%; height:100%; opacity:.72; }
.hero::before {
  content:"";
  position:absolute;
  top:0; bottom:0; left:64%;
  width:1px;
  background:linear-gradient(transparent,rgba(255,255,255,.2),transparent);
}
.hero-glow { position:absolute; width:520px; height:520px; border:1px solid rgba(113,229,255,.17); border-radius:50%; right:7vw; top:13vh; }
.hero-glow::before,.hero-glow::after { content:"";position:absolute;border-radius:50%;border:1px solid rgba(113,229,255,.12);inset:54px; }
.hero-glow::after { inset:118px; background:radial-gradient(circle,rgba(49,104,255,.28),transparent 67%); }
.hero-copy,.hero-meta,.scroll-cue { position:relative; z-index:2; }
.eyebrow,.section-label { display:flex; align-items:center; gap:12px; text-transform:uppercase; font-size:11px; letter-spacing:.19em; font-weight:800; }
.eyebrow span { display:block; width:8px; height:8px; border-radius:50%; background:var(--lime); box-shadow:0 0 0 5px rgba(201,255,82,.14); }
.hero h1 {
  font-family: var(--display);
  font-size: clamp(68px, 9.8vw, 154px);
  line-height: .78;
  letter-spacing: -.075em;
  text-transform: uppercase;
  margin: 39px 0 46px;
  max-width: 960px;
  font-weight: 900;
}
.hero h1 em,.section-title em,.updates h2 em { font-style:normal; color:var(--cyan); }
.hero-summary { max-width:610px; font-size:clamp(16px,1.45vw,20px); line-height:1.65; color:rgba(255,255,255,.68); }
.hero-actions { display:flex; align-items:center; gap:32px; margin-top:38px; }
.button { display:inline-flex; align-items:center; justify-content:space-between; gap:30px; min-width:224px; border-radius:99px; padding:16px 18px 16px 22px; font-size:12px; letter-spacing:.04em; font-weight:800; transition:transform .25s ease, background .25s ease; }
.button:hover { transform:translateY(-3px); }
.button-primary { color:var(--ink); background:var(--lime); }
.button-primary:hover { background:var(--cyan); }
.button span { font-size:18px; font-weight:400; }
.text-link { font-size:12px; font-weight:800; display:flex; align-items:center; gap:14px; }
.text-link span { transition:transform .2s ease; }
.text-link:hover span { transform:translateX(5px); }
.hero-meta { align-self:end; display:grid; margin-bottom:18px; }
.hero-meta > div { padding:22px 0; border-top:1px solid rgba(255,255,255,.19); display:grid; grid-template-columns:100px 1fr; align-items:center; }
.hero-meta span { color:rgba(255,255,255,.48); text-transform:uppercase; letter-spacing:.14em; font-size:9px; font-weight:800; }
.hero-meta strong { font-size:13px; font-weight:600; }
.hero-meta > div:first-child strong { font-family:var(--display); font-size:58px; letter-spacing:-.07em; color:var(--cyan); line-height:.8; }
.scroll-cue { position:absolute; bottom:35px; left:var(--pad); display:flex; gap:18px; align-items:center; font-size:9px; text-transform:uppercase; letter-spacing:.18em; color:rgba(255,255,255,.5); }
.scroll-cue i { height:1px; width:48px; background:rgba(255,255,255,.42); position:relative; overflow:hidden; }
.scroll-cue i::after { content:""; position:absolute; inset:0; background:var(--lime); animation:scroll-line 2s infinite ease-in-out; }
@keyframes scroll-line { 0%{transform:translateX(-110%)} 50%,100%{transform:translateX(110%)} }

.topic-marquee { overflow:hidden; background:var(--lime); border-bottom:1px solid var(--ink); }
.marquee-track { display:flex; width:max-content; align-items:center; animation:marquee 30s linear infinite; }
.marquee-track span { font-family:var(--display); text-transform:uppercase; font-weight:900; font-size:17px; letter-spacing:-.02em; padding:19px 32px; }
.marquee-track i { font-style:normal; font-size:12px; }
@keyframes marquee { to { transform:translateX(-50%); } }

.section { padding:clamp(92px, 12vw, 176px) var(--pad); }
.section-label { margin-bottom:58px; color:var(--muted); }
.section-label span { color:var(--blue); }
.section-title { font-family:var(--display); margin:0; text-transform:uppercase; font-size:clamp(48px,6.6vw,102px); line-height:.92; letter-spacing:-.065em; font-weight:900; }
.section-title em { color:var(--blue); }
.about { background:var(--white); }
.about-grid { display:grid; grid-template-columns:minmax(0,1.4fr) minmax(300px,.6fr); gap:clamp(50px,9vw,150px); align-items:start; }
.about-copy { padding-top:9px; }
.about-copy p { color:var(--muted); font-size:15px; line-height:1.75; margin:0 0 26px; }
.about-copy .lead { font-size:clamp(22px,2.2vw,32px); line-height:1.35; letter-spacing:-.035em; color:var(--ink); font-weight:600; }
.principles { border-top:1px solid var(--line); margin-top:42px; }
.principles div { display:grid; grid-template-columns:95px 1fr; gap:16px; padding:18px 0; border-bottom:1px solid var(--line); }
.principles strong { font-size:12px; }
.principles span { color:var(--muted); font-size:12px; }

.themes { background:var(--paper); }
.section-heading { display:flex; justify-content:space-between; align-items:end; margin-bottom:72px; gap:40px; }
.section-heading .section-label { margin:0; align-self:start; }
.section-heading .section-title { text-align:right; }
.theme-grid { display:grid; grid-template-columns:repeat(4,1fr); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.theme-card { position:relative; min-height:410px; padding:26px clamp(20px,2.3vw,36px) 30px; border-right:1px solid var(--line); overflow:hidden; transition:color .35s ease, transform .35s ease; }
.theme-card:last-child { border:0; }
.theme-card::before { content:""; position:absolute; inset:100% 0 0; background:var(--blue); transition:inset .38s cubic-bezier(.2,.8,.2,1); }
.theme-card:hover { color:var(--white); transform:translateY(-8px); }
.theme-card:hover::before { inset:0; }
.theme-card > * { position:relative; z-index:1; }
.theme-number { font-size:10px; letter-spacing:.16em; color:var(--muted); }
.theme-card:hover .theme-number,.theme-card:hover p { color:rgba(255,255,255,.65); }
.theme-icon { font-size:54px; color:var(--blue); margin:61px 0 74px; font-weight:200; line-height:1; }
.theme-card:hover .theme-icon { color:var(--lime); }
.theme-card h3 { font-family:var(--display); text-transform:uppercase; font-size:24px; line-height:1; letter-spacing:-.035em; margin:0 0 15px; max-width:180px; }
.theme-card p { color:var(--muted); font-size:12px; line-height:1.6; margin:0; }
.card-line { position:absolute; bottom:0; left:0; right:100%; height:5px; background:var(--lime); transition:right .38s ease; }
.theme-card:hover .card-line { right:0; }

.program { color:var(--white); background:var(--ink); display:grid; grid-template-columns:minmax(310px,.78fr) minmax(0,1.22fr); gap:clamp(60px,10vw,150px); }
.program .section-label { color:rgba(255,255,255,.45); }
.program .section-label span { color:var(--cyan); }
.program .section-title em { color:var(--cyan); }
.program-intro > p { color:rgba(255,255,255,.52); line-height:1.7; max-width:440px; margin-top:38px; font-size:15px; }
.program-list { border-top:1px solid rgba(255,255,255,.2); }
.program-row { display:grid; grid-template-columns:42px 100px 1fr 30px; gap:20px; align-items:start; padding:28px 0; border-bottom:1px solid rgba(255,255,255,.2); }
.program-index,.program-time { text-transform:uppercase; font-size:9px; letter-spacing:.14em; color:rgba(255,255,255,.35); padding-top:5px; }
.program-row h3 { margin:0 0 8px; font-family:var(--display); text-transform:uppercase; font-size:23px; letter-spacing:-.025em; }
.program-row p { margin:0; font-size:11px; line-height:1.5; color:rgba(255,255,255,.48); }
.program-symbol { color:var(--cyan); font-size:20px; transition:transform .25s ease; }
.program-row:hover .program-symbol { transform:translate(3px,-3px); }
.schedule-note { margin-top:42px; border:1px solid rgba(255,255,255,.18); border-radius:100px; padding:16px 20px; display:flex; align-items:center; justify-content:space-between; }
.schedule-note span { text-transform:uppercase; letter-spacing:.16em; font-size:9px; color:rgba(255,255,255,.4); }
.schedule-note strong { font-size:11px; color:var(--lime); text-transform:uppercase; letter-spacing:.11em; }

.organizers { background:var(--white); }
.organizer-heading { display:grid; grid-template-columns:1fr minmax(280px,.38fr); gap:60px; align-items:end; margin-bottom:80px; }
.organizer-heading .section-label { margin-bottom:48px; }
.organizer-heading > p { color:var(--muted); line-height:1.7; font-size:14px; padding-bottom:5px; }
.organizer-grid { display:grid; grid-template-columns:repeat(5,1fr); border-top:1px solid var(--line); border-left:1px solid var(--line); }
.person { min-height:185px; padding:22px; border-right:1px solid var(--line); border-bottom:1px solid var(--line); transition:background .25s ease, color .25s ease; }
.person:hover { background:var(--lime); }
.person > span { display:grid; place-items:center; width:39px; height:39px; border-radius:50%; background:var(--ink); color:var(--white); font-size:10px; font-weight:800; letter-spacing:.06em; margin-bottom:52px; transition:transform .3s ease; }
.person:hover > span { transform:rotate(-8deg) scale(1.08); }
.person h3 { margin:0 0 6px; font-family:var(--display); text-transform:uppercase; font-size:18px; letter-spacing:-.025em; }
.person p { margin:0; color:var(--muted); text-transform:uppercase; font-size:8px; letter-spacing:.15em; }
.person:hover p { color:rgba(7,17,31,.6); }

.updates { min-height:650px; padding:120px var(--pad); position:relative; overflow:hidden; display:grid; place-items:center; text-align:center; color:var(--white); background:var(--blue); }
.updates::before { content:""; position:absolute; inset:0; background:linear-gradient(110deg,rgba(7,17,31,.12),transparent 45%,rgba(113,229,255,.1)); }
.updates-content { position:relative; z-index:2; max-width:900px; }
.section-label.light { color:rgba(255,255,255,.58); justify-content:center; margin-bottom:40px; }
.section-label.light span { color:var(--lime); }
.updates h2 { font-family:var(--display); text-transform:uppercase; font-size:clamp(64px,9vw,135px); line-height:.82; letter-spacing:-.07em; margin:0; }
.updates h2 em { color:var(--lime); }
.updates p { max-width:550px; margin:38px auto 32px; color:rgba(255,255,255,.7); line-height:1.65; }
.button-light { background:var(--white); color:var(--ink); margin:auto; }
.button-light:hover { background:var(--lime); }
.updates-orbit { position:absolute; width:min(66vw,870px); aspect-ratio:1; border:1px solid rgba(255,255,255,.16); border-radius:50%; }
.updates-orbit::before,.updates-orbit::after { content:""; position:absolute; inset:12%; border:1px solid rgba(255,255,255,.11); border-radius:50%; }
.updates-orbit::after { inset:27%; }
.updates-orbit span { position:absolute; width:16px; height:16px; background:var(--lime); border-radius:50%; left:11%; top:21%; box-shadow:0 0 30px rgba(201,255,82,.75); }
.updates-orbit i { position:absolute; width:9px; height:9px; background:var(--cyan); border-radius:50%; right:13%; bottom:23%; box-shadow:0 0 20px var(--cyan); }

footer { min-height:115px; display:grid; grid-template-columns:1fr 2fr 1fr; align-items:center; gap:30px; padding:28px var(--pad); background:var(--ink); color:var(--white); border-top:1px solid rgba(255,255,255,.12); }
footer p { color:rgba(255,255,255,.42); font-size:10px; text-align:center; }
footer > a:last-child { color:rgba(255,255,255,.6); text-transform:uppercase; letter-spacing:.13em; font-size:9px; text-align:right; }

.reveal { opacity:0; transform:translateY(32px); transition:opacity .8s ease, transform .8s cubic-bezier(.2,.7,.2,1); }
.reveal.is-visible { opacity:1; transform:none; }
.hero .reveal { opacity:1; transform:none; }
.reveal-delay-1 { transition-delay:.12s; }
.reveal-delay-2 { transition-delay:.24s; }
.reveal-delay-3 { transition-delay:.36s; }

@media (max-width: 1040px) {
  .theme-grid { grid-template-columns:repeat(2,1fr); }
  .theme-card:nth-child(2) { border-right:0; }
  .theme-card:nth-child(-n+2) { border-bottom:1px solid var(--line); }
  .organizer-grid { grid-template-columns:repeat(4,1fr); }
}

@media (max-width: 800px) {
  .site-header { height:66px; }
  .menu-button { display:block; z-index:2; }
  .main-nav { position:fixed; inset:0; background:var(--ink); color:var(--white); flex-direction:column; justify-content:center; align-items:flex-start; padding:90px var(--pad); gap:25px; transform:translateX(100%); transition:transform .35s cubic-bezier(.2,.8,.2,1); }
  .main-nav.open { transform:none; }
  .main-nav a { font-family:var(--display); font-size:31px; text-transform:uppercase; }
  .main-nav .nav-cta { font-family:var(--body); font-size:11px; margin-top:18px; }
  .menu-button.active span:first-child { transform:rotate(45deg); top:20px; }
  .menu-button.active span:last-child { transform:rotate(-45deg); top:20px; width:20px; }
  .site-header.menu-open { color:var(--white); }
  .hero { grid-template-columns:1fr; align-items:center; padding-top:125px; }
  .hero::before { left:78%; }
  .hero-meta { display:none; }
  .hero h1 { margin:32px 0; }
  .about-grid,.program,.organizer-heading { grid-template-columns:1fr; }
  .about-copy { max-width:600px; }
  .section-heading { display:block; }
  .section-heading .section-label { margin-bottom:50px; }
  .section-heading .section-title { text-align:left; }
  .program { gap:65px; }
  .organizer-heading { align-items:start; margin-bottom:50px; }
  .organizer-heading > p { max-width:500px; }
  .organizer-grid { grid-template-columns:repeat(3,1fr); }
  footer { grid-template-columns:1fr auto; }
  footer p { display:none; }
}

@media (max-width: 560px) {
  .hero { min-height:820px; padding-bottom:120px; }
  .hero h1 { font-size:clamp(44px,13vw,56px); line-height:.86; }
  .hero-summary { font-size:15px; }
  .hero-actions { align-items:flex-start; flex-direction:column; gap:23px; }
  .scroll-cue { bottom:28px; }
  .section { padding-top:90px; padding-bottom:90px; }
  .section-label { margin-bottom:40px; }
  .theme-grid { grid-template-columns:1fr; }
  .theme-card { border-right:0; border-bottom:1px solid var(--line); min-height:340px; }
  .theme-card:nth-child(3) { border-bottom:1px solid var(--line); }
  .theme-icon { margin:45px 0 48px; }
  .program-row { grid-template-columns:33px 1fr 20px; }
  .program-time { display:none; }
  .organizer-grid { grid-template-columns:repeat(2,1fr); }
  .person { min-height:162px; padding:17px; }
  .person > span { margin-bottom:40px; }
  .person h3 { font-size:16px; }
  .updates { min-height:560px; padding:90px var(--pad); }
  .updates-orbit { width:120vw; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior:auto; }
  *,*::before,*::after { animation-duration:.01ms!important; animation-iteration-count:1!important; transition-duration:.01ms!important; }
  .reveal { opacity:1; transform:none; }
}
