:root{
  --ink:#0f1216;
  --ink-2:#161b21;
  --ink-3:#1f262e;
  --line-dark:#2a323c;
  --paper:#f5f2ec;
  --paper-2:#ebe6dc;
  --white:#fbfaf7;
  --text:#1a1e24;
  --muted:#5a636e;
  --muted-dark:#98a3b0;
  --on-dark:#e7ebef;
  --amber:#f2a900;
  --amber-deep:#c98a00;
  --steel:#3d6d9e;
  --green:#3f9460;
  --rule:#d9d3c7;
  --sans:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  --r:10px;
  --wrap:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--white);color:var(--text);font:400 17px/1.6 var(--sans);overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{margin:0;font-weight:600;letter-spacing:-.02em;line-height:1.1}
p{margin:0 0 1em}
.mono{font-family:var(--mono);letter-spacing:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px}
.skip{position:absolute;left:-999px;top:0;background:var(--amber);color:#000;padding:8px 12px;z-index:100}
.skip:focus{left:8px;top:8px}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--amber);color:#111;text-decoration:none;font-weight:600;font-size:15px;padding:12px 20px;border-radius:8px;border:1px solid var(--amber);transition:background .15s,transform .15s}
.btn:hover{background:#ffba1a;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--on-dark);border-color:#3a4450}
.btn-ghost:hover{background:#1c232b}
.btn-sm{padding:8px 14px;font-size:14px}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(15,18,22,.86);backdrop-filter:saturate(140%) blur(10px);-webkit-backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid #20272f;color:var(--on-dark)}
.nav-in{display:flex;align-items:center;gap:28px;height:62px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;letter-spacing:.06em;font-size:17px}
.brand-mark{width:26px;height:26px;flex:none}
.nav-links{display:flex;gap:22px;margin-left:auto;font-size:14.5px}
.nav-links a{text-decoration:none;color:var(--muted-dark);transition:color .15s}
.nav-links a:hover{color:#fff}

/* hero */
.hero{background:var(--ink);color:var(--on-dark);position:relative;overflow:hidden;padding:72px 0 0}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(#1a2028 1px,transparent 1px),linear-gradient(90deg,#1a2028 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(ellipse at 70% 30%,#000 10%,transparent 70%);-webkit-mask-image:radial-gradient(ellipse at 70% 30%,#000 10%,transparent 70%);opacity:.7;pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr 1.12fr;gap:56px;align-items:center}
.eyebrow{font-family:var(--mono);font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--amber);margin-bottom:18px}
.hero h1{text-wrap:balance;font-size:clamp(36px,4.6vw,62px);font-weight:600;letter-spacing:-.035em;line-height:1.02;color:#fff}
.lede{font-size:18.5px;color:#b9c3ce;margin:26px 0 30px;max-width:560px}
.cta-row{display:flex;gap:12px;flex-wrap:wrap}
.status{display:flex;align-items:center;gap:10px;margin:26px 0 0;font-size:14px;color:var(--muted-dark)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--amber);box-shadow:0 0 0 4px rgba(242,169,0,.18);flex:none;animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{50%{box-shadow:0 0 0 8px rgba(242,169,0,0)}}

.hero-vis{margin:0;background:linear-gradient(180deg,#141a21,#11161c);border:1px solid var(--line-dark);border-radius:14px;overflow:hidden;box-shadow:0 30px 80px -30px rgba(0,0,0,.7)}
.vis-head{display:flex;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--line-dark);font-size:12.5px;color:var(--muted-dark)}
.vis-date{color:var(--amber)}
#fourD{display:block;width:100%;height:auto;aspect-ratio:720/460;touch-action:pan-y}
.vis-foot{padding:12px 16px 14px;border-top:1px solid var(--line-dark)}
.vis-activity{font-size:12.5px;color:#d6dde4;margin-bottom:10px;min-height:1.4em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.scrub{position:relative;height:18px;cursor:pointer;touch-action:none}
.scrub-track{position:absolute;left:0;right:0;top:8px;height:3px;background:#2a323c;border-radius:2px;overflow:hidden}
.scrub-fill{height:100%;width:0;background:var(--amber)}
.scrub-knob{position:absolute;top:3px;width:13px;height:13px;margin-left:-6px;border-radius:50%;background:#fff;border:3px solid var(--amber);left:0}
.vis-legend{display:flex;flex-wrap:wrap;gap:6px 16px;margin-top:10px;font-size:11.5px;color:var(--muted-dark)}
.vis-legend i{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:6px;vertical-align:-1px}
.vis-legend i.hp{background:none;border:2px solid var(--amber);border-radius:50%;width:10px;height:10px}
.vis-legend i.hp.rel{border-color:var(--green)}

.facts{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:72px;border-top:1px solid var(--line-dark)}
.facts>div{padding:26px 24px 30px 0}
.facts>div+div{padding-left:24px;border-left:1px solid var(--line-dark)}
.facts b{display:block;font-family:var(--mono);font-weight:500;font-size:34px;color:#fff;letter-spacing:-.02em}
.facts span{font-size:14px;color:var(--muted-dark);line-height:1.45;display:block;margin-top:4px}

/* sections */
.sec{padding:112px 0}
.sec-dark{background:var(--ink);color:var(--on-dark)}
.sec-paper{background:var(--paper)}
.kicker{font-family:var(--mono);font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--amber-deep);margin-bottom:14px}
.sec-dark .kicker{color:var(--amber)}
.sec h2{font-size:clamp(30px,3.6vw,46px);margin-bottom:20px;max-width:820px}
.sec-dark h2{color:#fff}
.sec-lede{font-size:18px;color:var(--muted);max-width:760px}
.sec-dark .sec-lede{color:#aab4bf}
.small{font-size:14.5px;color:var(--muted)}
.small.on-dark{color:var(--muted-dark);margin-top:18px;max-width:760px}
.sec a.btn{color:#111;text-decoration:none}
.sec a:not(.btn){color:inherit;text-decoration-color:var(--amber);text-underline-offset:3px;text-decoration-thickness:2px}

/* pipeline */
.pipe{display:grid;grid-template-columns:repeat(5,1fr);gap:0;margin:48px 0 0;position:relative;counter-reset:s}
.pipe::before{content:"";position:absolute;left:0;right:0;top:27px;height:2px;background:var(--rule)}
.pipe-step{position:relative;background:none;border:0;padding:0 8px 18px 0;text-align:left;cursor:pointer;font:inherit;color:var(--muted)}
.pipe-step .n{display:grid;place-items:center;width:56px;height:56px;border-radius:50%;background:var(--white);border:2px solid var(--rule);font-family:var(--mono);font-size:15px;font-weight:500;color:var(--muted);position:relative;transition:all .2s}
.pipe-step .t{display:block;margin-top:14px;font-weight:600;font-size:17px;color:var(--text);opacity:.55;transition:opacity .2s}
.pipe-step:hover .t{opacity:.85}
.pipe-step.on .n{background:var(--ink);border-color:var(--ink);color:var(--amber)}
.pipe-step.on .t{opacity:1}
.pipe-step.done .n{border-color:var(--amber);color:var(--amber-deep)}
.pipe-panel{display:grid;grid-template-columns:1fr 1.05fr;gap:40px;margin-top:22px;padding:36px;background:var(--paper);border:1px solid var(--rule);border-radius:14px;min-height:340px}
.pp-text h3{font-size:26px;margin-bottom:14px}
.pp-text p{color:#3d444d}
.pp-label{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:22px 0 10px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-family:var(--mono);font-size:13px;padding:5px 10px;border-radius:6px;background:var(--white);border:1px solid var(--rule);color:#2c333b}
.pp-record{background:var(--ink);color:#d6dde4;border-radius:10px;overflow:hidden;align-self:start;min-width:0}
.rec-head{display:flex;justify-content:space-between;font-size:12px;padding:10px 16px;border-bottom:1px solid var(--line-dark);color:var(--amber)}
.rec-note{color:#6f7b88}
.pp-record pre{margin:0;padding:16px;font-size:13px;line-height:1.65;overflow-x:auto;white-space:pre}
.pp-record .k{color:#7f8c99}
.pp-record .s{color:#e8d7a6}
.pp-record .i{color:#8fc1ea}
.fade{animation:fade .35s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* graph */
.graph-box{position:relative;margin-top:44px;border:1px solid var(--line-dark);border-radius:14px;background:radial-gradient(ellipse at 50% 40%,#18202a,#0f1216 70%);overflow:hidden}
#graph{display:block;width:100%;height:600px;cursor:grab;touch-action:pan-y}
.graph-info{position:absolute;right:18px;top:18px;width:300px;background:rgba(18,23,29,.92);border:1px solid var(--line-dark);border-radius:10px;padding:18px 18px 12px;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.gi-kind{font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--amber);margin-bottom:6px}
.graph-info h3{font-size:22px;color:#fff;margin-bottom:8px}
.graph-info p{font-size:14px;color:#aab4bf;line-height:1.5;margin-bottom:10px}
.gi-edges{list-style:none;margin:0;padding:10px 0 0;border-top:1px solid var(--line-dark);font-size:12px;color:#c3ccd5;max-height:190px;overflow:auto}
.gi-edges li{padding:2px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.gi-edges .rel{color:#6f7b88}
.graph-legend{position:absolute;left:18px;bottom:16px;display:flex;flex-wrap:wrap;gap:6px 14px;font-size:11.5px;color:var(--muted-dark)}
.graph-legend i{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:6px;vertical-align:-1px}

/* trace */
.trace-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.trace-grid p b{font-weight:600;color:var(--text);font-size:18px}
.chain{list-style:none;margin:0;padding:0;position:relative}
.chain::before{content:"";position:absolute;left:15px;top:22px;bottom:22px;width:2px;background:linear-gradient(var(--amber),var(--steel))}
.chain li{position:relative;display:grid;grid-template-columns:130px 1fr;gap:14px;align-items:center;padding:12px 0 12px 44px}
.chain li::before{content:"";position:absolute;left:8px;top:50%;width:16px;height:16px;margin-top:-8px;border-radius:50%;background:var(--white);border:2px solid var(--steel)}
.chain li:first-child::before{border-color:var(--amber);background:var(--amber)}
.chain li:last-child::before{background:var(--steel)}
.ck{font-size:13px;color:var(--steel);font-weight:500}
.chain li:first-child .ck{color:var(--amber-deep)}
.cv{font-size:15.5px;color:#2c333b;padding:10px 14px;background:var(--paper);border:1px solid var(--rule);border-radius:8px}

/* plant */
.plant{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:48px}
.plant-card{margin:0;background:var(--white);border:1px solid var(--rule);border-radius:14px;overflow:hidden}
.plant-img{background:#23201c;aspect-ratio:16/9;overflow:hidden}
.plant-img img{width:100%;height:100%;object-fit:cover}
.plant-card figcaption{padding:24px 26px 26px}
.plant-card h3{font-size:20px;margin-bottom:8px}
.plant-card p{color:var(--muted);font-size:15.5px}
.spec{margin:14px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:10px 18px;font-size:12.5px}
.spec div{border-top:1px solid var(--rule);padding-top:8px}
.spec dt{color:var(--muted)}
.spec dd{margin:2px 0 0;color:var(--text);font-weight:500;font-size:14px}

.sim{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;margin-top:88px;padding-top:56px;border-top:1px solid var(--rule)}
.sim h3{font-size:28px;margin-bottom:16px}
.sim p{color:#3d444d}
.loops{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.loops li{display:grid;grid-template-columns:84px 1fr;gap:14px;align-items:baseline;padding:16px 18px;background:var(--white);border:1px solid var(--rule);border-radius:10px;font-size:15.5px;color:#3d444d}
.loops .mono{font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--amber-deep);font-weight:500}

/* measured */
.measure-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:64px;align-items:center}
.bars{display:grid;gap:18px}
.bar{display:grid;grid-template-columns:1fr auto;gap:6px 12px}
.bl{font-size:15px;color:#2c333b}
.bv{font-size:15px;font-weight:500}
.bt{grid-column:1/-1;height:10px;border-radius:5px;background:var(--paper-2);overflow:hidden}
.bt i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--steel),#5b8fc4);border-radius:5px;transition:width 1.2s cubic-bezier(.2,.7,.2,1)}
.bar:nth-child(-n+3) .bt i{background:linear-gradient(90deg,var(--amber-deep),var(--amber))}

/* standards table */
.tbl-wrap{margin-top:44px;overflow-x:auto;border:1px solid var(--line-dark);border-radius:12px}
.tbl{width:100%;border-collapse:collapse;font-size:15.5px;min-width:560px}
.tbl th{font-family:var(--mono);font-weight:500;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-dark);text-align:left;padding:14px 18px;border-bottom:1px solid var(--line-dark);background:#131920}
.tbl td{padding:14px 18px;border-bottom:1px solid #1f262e;color:#d6dde4}
.tbl td:first-child{color:#fff;font-weight:500}
.tbl .r{text-align:right}
.tbl tbody tr:hover td{background:#141b22}
.auth-m{display:none}
.tbl tfoot td{border-bottom:0;color:var(--amber);font-weight:600;background:#131920}

/* roadmap */
.road{list-style:none;margin:48px 0 0;padding:0;display:grid;gap:0;border-top:1px solid var(--rule)}
.road li{display:grid;grid-template-columns:72px 1fr 130px;gap:20px;align-items:center;padding:20px 0;border-bottom:1px solid var(--rule)}
.rm{font-size:14px;font-weight:500;color:var(--muted);width:48px;height:48px;border-radius:50%;display:grid;place-items:center;border:2px solid var(--rule)}
.road h3{font-size:18px;margin-bottom:4px}
.road p{margin:0;color:var(--muted);font-size:15.5px}
.rs{font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;text-align:right;color:var(--muted)}
.road li.done .rm{background:var(--ink);border-color:var(--ink);color:var(--amber)}
.road li.done .rs{color:var(--green)}
.road li.now .rm{border-color:var(--amber);color:var(--amber-deep);position:relative}
.road li.now .rm::after{content:"";position:absolute;inset:-6px;border-radius:50%;border:2px solid rgba(242,169,0,.35);animation:ring 2.4s ease-out infinite}
@keyframes ring{from{transform:scale(.85);opacity:1}to{transform:scale(1.25);opacity:0}}
.road li.now .rs{color:var(--amber-deep)}

/* about */
.about-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:64px;align-items:start}
.about-grid>div:first-child p{font-size:17.5px;color:#3d444d;max-width:560px}
.contact{background:var(--ink);color:var(--on-dark);border-radius:14px;padding:36px}
.contact h3{font-size:24px;color:#fff;margin-bottom:12px}
.contact p{color:#aab4bf}
.contact .btn{margin-top:8px}

/* footer */
.foot{background:#0b0e11;color:var(--muted-dark);padding:48px 0 40px;font-size:14px}
.foot-in{display:grid;gap:16px}
.foot-brand{display:flex;align-items:center;gap:12px;color:#d6dde4}
.foot a{color:#d6dde4;text-underline-offset:3px}
.credits{font-size:12.5px;line-height:1.6;max-width:880px;margin:0;color:#7d8894}
.copy{margin:0;font-size:12.5px;color:#5f6b77}

/* reveal */
.rv{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}.dot,.road li.now .rm::after{animation:none}}

/* responsive */
@media (max-width:1040px){
  .nav-links{display:none}
  .nav-in .btn-sm{margin-left:auto}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .facts{grid-template-columns:repeat(2,1fr)}
  .facts>div:nth-child(3){padding-left:0;border-left:0}
  .facts>div:nth-child(n+3){border-top:1px solid var(--line-dark)}
  .pipe-panel,.trace-grid,.measure-grid,.sim,.about-grid{grid-template-columns:1fr;gap:36px}
  .graph-info{position:static;width:auto;margin:0;border-radius:0;border-width:1px 0 0;background:#12171d}
  .graph-legend{position:static;padding:12px 18px 16px;background:#12171d}
}
@media (max-width:720px){
  body{font-size:16px}
  .wrap{padding:0 16px}
  .hero{padding-top:44px}
  .lede{font-size:17px}
  .facts{margin-top:48px}
  .facts>div{padding:20px 12px 22px 0}
  .facts>div+div{padding-left:12px}
  .facts>div:nth-child(3){padding-left:0}
  .facts b{font-size:26px}
  .facts span{font-size:13px}
  .sec{padding:72px 0}
  .sec-lede{font-size:16.5px}
  .pipe{grid-template-columns:repeat(5,1fr);margin-top:32px}
  .pipe::before{top:21px}
  .pipe-step{padding-right:0;text-align:center}
  .pipe-step .n{width:44px;height:44px;margin:0 auto;font-size:13px}
  .pipe-step .t{font-size:12.5px;line-height:1.25;margin-top:10px}
  .pipe-panel{padding:22px 18px;gap:24px}
  .pp-text h3{font-size:22px}
  .pp-record pre{font-size:11.5px;padding:14px}
  #graph{height:440px}
  .plant{grid-template-columns:1fr;gap:20px}
  .plant-card figcaption{padding:20px}
  .chain li{grid-template-columns:1fr;gap:4px;padding:10px 0 10px 40px}
  .chain li::before{top:24px;margin-top:0}
  .cv{font-size:15px}
  .loops li{grid-template-columns:1fr;gap:4px}
  .road li{grid-template-columns:52px 1fr;gap:14px}
  .rm{width:40px;height:40px;font-size:13px}
  .rs{grid-column:2;text-align:left;margin-top:-6px}
  .contact{padding:26px 20px}
  .tbl{font-size:14px;min-width:0}
  .tbl .auth{display:none}
  .auth-m{display:block;font-weight:400;font-size:12.5px;color:var(--muted-dark);margin-top:2px;line-height:1.35}
  .tbl-wrap{overflow-x:visible}
  .tbl th,.tbl td{padding:12px 12px}
}