:root{
  --bg:#07090A; --bg2:#0C0F10; --ink:#EEF1EF; --muted:#8B9490; --dim:#59625E; --line:#1D2321;
  --accent:#6FE3BC; --accent-soft:rgba(111,227,188,.14);
  --sans:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  --pad:clamp(20px,5vw,72px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.label,.tag,.cap,.num,.log,.hero-foot{font-family:var(--mono)}
.label{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin:0 0 18px}
h1,h2,h3{margin:0;font-weight:600;letter-spacing:-.025em;text-wrap:balance}
h1{font-size:clamp(46px,9vw,128px);line-height:.96;text-transform:uppercase;letter-spacing:-.04em}
h2{font-size:clamp(30px,4.6vw,60px);line-height:1.06}
h3{font-size:19px;line-height:1.3;letter-spacing:-.01em}
.dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 0 var(--accent-soft);animation:ping 2.4s ease-out infinite}
@keyframes ping{0%{box-shadow:0 0 0 0 rgba(111,227,188,.5)}100%{box-shadow:0 0 0 10px rgba(111,227,188,0)}}

/* nav */
.nav{position:fixed;inset:0 0 auto 0;z-index:20;transition:background .3s,border-color .3s;border-bottom:1px solid transparent}
.nav.solid{background:rgba(7,9,10,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-color:var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;padding:14px var(--pad)}
.brand img{height:40px;width:auto;filter:invert(1)}
nav{display:flex;align-items:center;gap:30px;font-size:13px;letter-spacing:.08em;text-transform:uppercase;font-weight:500}
nav a{color:var(--muted);transition:color .2s}
nav a:hover{color:var(--ink)}
nav .nav-cta{color:var(--ink);border:1px solid #3A4340;padding:9px 18px;transition:background .2s,color .2s,border-color .2s}
nav .nav-cta:hover{background:var(--ink);color:var(--bg);border-color:var(--ink)}

/* buttons */
.actions{display:flex;flex-wrap:wrap;gap:14px;margin:0}
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 28px;font-size:13px;letter-spacing:.1em;text-transform:uppercase;font-weight:600;transition:transform .2s,background .2s,color .2s,border-color .2s}
.btn.solid{background:var(--ink);color:var(--bg)}
.btn.solid:hover{background:var(--accent)}
.btn.ghost{border:1px solid #3A4340;color:var(--ink)}
.btn.ghost:hover{border-color:var(--ink)}
.btn span{transition:transform .2s}
.btn:hover span{transform:translateX(4px)}

/* hero */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;overflow:hidden;isolation:isolate}
#hex{position:absolute;inset:0;width:100%;height:100%;z-index:-2}
.hero-shade{position:absolute;inset:0;z-index:-1;background:
  radial-gradient(ellipse 70% 60% at 25% 55%,rgba(7,9,10,.88),rgba(7,9,10,.35) 70%,transparent),
  linear-gradient(to bottom,rgba(7,9,10,.5),transparent 25%,transparent 70%,var(--bg))}
.hero-in{padding:120px var(--pad) 140px;max-width:1280px}
.tag{display:inline-flex;align-items:center;gap:12px;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin:0 0 28px}
.hero .lede{max-width:52ch;font-size:clamp(17px,1.7vw,21px);color:#B9C0BC;margin:32px 0 40px}
.hero-foot{position:absolute;left:var(--pad);right:var(--pad);bottom:32px;display:flex;gap:clamp(18px,4vw,56px);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--dim);border-top:1px solid var(--line);padding-top:16px}
.hero-foot .scroll{margin-left:auto;color:var(--muted)}
.hero-foot .scroll::after{content:"";display:inline-block;width:1px;height:14px;background:var(--muted);margin-left:10px;vertical-align:middle;animation:drip 2s ease-in-out infinite}
@keyframes drip{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* sections */
.block{padding:clamp(80px,12vw,160px) var(--pad);border-top:1px solid var(--line);max-width:1440px;margin:0 auto}
.head{max-width:900px;margin-bottom:clamp(40px,6vw,80px)}
.statement .big{font-size:clamp(19px,1.9vw,27px);line-height:1.45;letter-spacing:-.012em;font-weight:500;max-width:56ch;margin:0 0 1em}
.statement .dim{color:var(--dim)}

/* phases */
.phases{margin:0 0 56px;border:1px solid var(--line);background:linear-gradient(var(--bg2),var(--bg));padding:clamp(16px,3vw,40px)}
.phases svg{display:block;width:100%;height:auto}
.phases .track{stroke:var(--line);stroke-width:2}
.phases .run{stroke:var(--accent);stroke-width:2;stroke-dasharray:1;stroke-dashoffset:1;animation:run 10s linear infinite}
.phases .node polygon{fill:var(--bg);stroke:#2B3330;stroke-width:2;animation:nodeOn 10s linear infinite}
.phases .node circle{fill:#2B3330;animation:dotOn 10s linear infinite}
.phases .n2 *{animation-delay:3.2s!important}
.phases .n3 *{animation-delay:6.4s!important}
.phases .n4 *{animation-delay:9.6s!important}
.phases .pulse{fill:var(--accent);filter:drop-shadow(0 0 8px var(--accent));animation:travel 10s linear infinite}
@keyframes run{0%{stroke-dashoffset:1}96%,100%{stroke-dashoffset:0}}
@keyframes nodeOn{0%{stroke:#2B3330;fill:var(--bg)}4%,22%{stroke:var(--accent);fill:var(--accent-soft)}30%,100%{stroke:#4A5A54;fill:var(--bg)}}
@keyframes dotOn{0%{fill:#2B3330}4%,22%{fill:var(--accent)}30%,100%{fill:#4A5A54}}
@keyframes travel{0%{transform:translateX(0)}96%,100%{transform:translateX(780px)}}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
.steps li{padding:28px 28px 0 0;border-right:1px solid var(--line);margin-right:28px}
.steps li:last-child{border-right:0;margin-right:0}
.num{display:block;font-size:12px;color:var(--accent);letter-spacing:.14em;margin-bottom:22px}
.steps p,.cols p{color:var(--muted);font-size:16px;margin:10px 0 0}

/* together */
.stage{display:grid;grid-template-columns:1.7fr 1fr;gap:28px;align-items:stretch}
.net{border:1px solid var(--line);background:linear-gradient(var(--bg2),var(--bg));padding:clamp(12px,2vw,28px);display:flex;align-items:center}
.net svg{display:block;width:100%;height:auto}
.wires use{fill:none;stroke:#26302D;stroke-width:1.5}
.side rect{fill:var(--bg);stroke:#2B3330;stroke-width:1.5}
.side text{fill:var(--ink);font:500 15px var(--sans);text-anchor:middle}
.cap{fill:var(--dim);font:500 11px var(--mono)!important;letter-spacing:.2em;text-anchor:middle}
.core .ring{fill:none;stroke:var(--accent);stroke-width:1.5;opacity:.5;transform-origin:500px 180px;animation:breathe 4s ease-in-out infinite}
.core .fill{fill:var(--accent-soft);stroke:var(--accent);stroke-width:2}
@keyframes breathe{0%,100%{transform:scale(1);opacity:.5}50%{transform:scale(1.14);opacity:.15}}
.packets circle{fill:var(--ink)}
.packets circle.b{fill:var(--accent)}
.log{border:1px solid var(--line);background:var(--bg2);display:flex;flex-direction:column;min-height:300px}
.log-head{display:flex;align-items:center;gap:10px;padding:14px 18px;border-bottom:1px solid var(--line);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink)}
.log-head .live{margin-left:auto;color:var(--dim);font-size:10px}
.log ul{list-style:none;margin:0;padding:8px 0;overflow:hidden;flex:1;display:flex;flex-direction:column;justify-content:flex-end}
.log li{padding:8px 18px;font-size:12.5px;color:var(--muted);display:flex;gap:12px;animation:in .5s ease-out}
.log li time{color:var(--dim);flex:none}
.log li b{color:var(--accent);font-weight:500}
@keyframes in{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* principles */
.cols{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line)}
.cols article{padding:32px 32px 0 0;border-right:1px solid var(--line);margin-right:32px}
.cols article:last-child{border-right:0;margin-right:0}
.cols h3{font-size:22px}

/* cta */
.cta{text-align:center;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse 50% 60% at 50% 100%,var(--accent-soft),transparent 70%);pointer-events:none}
.cta-in{position:relative;max-width:760px;margin:0 auto}
.cta .lede{color:var(--muted);margin:22px auto 36px;max-width:48ch}
.cta .actions{justify-content:center}

footer{border-top:1px solid var(--line);padding:28px var(--pad)}
.foot{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--dim);max-width:1440px;margin:0 auto}
.foot img{filter:invert(1);opacity:.6;height:24px;width:auto}
.sp{flex:1}

/* reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.steps li.reveal:nth-child(2),.cols article.reveal:nth-child(2){transition-delay:.1s}
.steps li.reveal:nth-child(3),.cols article.reveal:nth-child(3){transition-delay:.2s}
.steps li.reveal:nth-child(4){transition-delay:.3s}

@media (max-width:900px){
  nav a:not(.nav-cta){display:none}
  .stage{grid-template-columns:1fr}
  .steps,.cols{grid-template-columns:1fr}
  .steps li,.cols article{border-right:0;margin:0;padding:24px 0;border-bottom:1px solid var(--line)}
  .steps li:last-child,.cols article:last-child{border-bottom:0}
  .hero-in{padding-bottom:160px}
  .hero-foot span:not(.scroll){display:none}
  .hero-foot{justify-content:flex-end}
  .phases .pulse{display:none}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  .phases .run{stroke-dashoffset:0}
  .phases .node polygon{stroke:var(--accent)}
  .packets{display:none}
}

/* standards strip */
.standards{max-width:1440px;margin:0 auto;padding:36px var(--pad);border-top:1px solid var(--line)}
.standards .label{margin-bottom:16px;color:var(--dim)}
.standards ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.standards li{font:500 12.5px var(--mono);letter-spacing:.06em;color:var(--muted);border:1px solid var(--line);padding:9px 14px;transition:color .2s,border-color .2s}
.standards li:hover{color:var(--accent);border-color:var(--accent)}
.phases .lbl text{fill:var(--dim);font:500 11px var(--mono);letter-spacing:.16em;text-anchor:middle}

/* demo modal */
.btn.play{cursor:pointer;background:none;font-family:var(--sans)}
.btn.play svg{color:var(--accent)}
dialog#demo{border:0;padding:0;background:var(--bg);color:var(--ink);width:min(1320px,96vw);max-width:none;height:min(92vh,calc(96vw * 9 / 16 + 90px));max-height:none;box-shadow:0 0 0 1px var(--line),0 40px 120px rgba(0,0,0,.7)}
dialog#demo::backdrop{background:rgba(3,5,5,.85);backdrop-filter:blur(4px)}
dialog#demo iframe{width:100%;height:100%;border:0;display:block}
dialog#demo .x{position:absolute;top:10px;right:12px;z-index:2;background:var(--bg);color:var(--muted);border:1px solid var(--line);font:500 11px var(--mono);letter-spacing:.12em;text-transform:uppercase;padding:8px 12px;cursor:pointer}
dialog#demo .x:hover{color:var(--ink);border-color:var(--ink)}