:root{
  --bg:#f3f6f8;--surface:#ffffff;--surface-soft:#eaf0f4;--ink:#13202b;--ink-2:#243746;--muted:#60717f;--muted-2:#81909b;
  --navy:#07111b;--navy-2:#0d1e2d;--blue:#146ea8;--cyan:#8cd8ed;--line:#cbd6de;--line-strong:#9fb0bd;--green:#2f7f5e;
  --orange:#b97928;--red:#a04d4d;--shadow:0 18px 45px rgba(20,42,57,.09);--radius:4px;--max:1480px;--header:72px;
  --sans:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);line-height:1.55;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{display:block;max-width:100%}a{color:inherit;text-decoration:none}button,input{font:inherit}button{color:inherit}code{font-family:var(--mono)}::selection{background:#c9e5f3;color:#07111b}
.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.skip-link{position:fixed;left:20px;top:-80px;z-index:1000;padding:11px 14px;background:#fff;color:var(--navy);border:2px solid var(--blue)}.skip-link:focus{top:16px}:focus-visible{outline:3px solid #4aa7d3;outline-offset:3px}
.site-header{position:fixed;z-index:100;inset:0 0 auto;height:var(--header);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:28px;padding:0 max(24px,calc((100vw - var(--max))/2));color:#fff;background:rgba(6,15,23,.84);border-bottom:1px solid rgba(255,255,255,.12);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);transition:height .2s ease,background .2s ease,box-shadow .2s ease}
.site-header.scrolled{height:64px;background:rgba(6,15,23,.96);box-shadow:0 8px 24px rgba(0,0,0,.16)}.brand{display:flex;align-items:center;gap:12px;min-width:max-content}.brand-short{font-weight:800;font-size:20px;letter-spacing:.04em}.brand-name{color:rgba(255,255,255,.72);font-size:11px;letter-spacing:.06em;text-transform:uppercase}
.primary-nav{display:flex;align-items:center;justify-content:center;gap:27px}.primary-nav a{position:relative;color:rgba(255,255,255,.7);font:600 10px/1 var(--mono);letter-spacing:.07em;text-transform:uppercase;transition:color .16s ease}.primary-nav a:hover,.primary-nav a.active{color:#fff}.primary-nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-13px;height:2px;background:var(--cyan)}
.header-action{justify-self:end;display:inline-flex;align-items:center;gap:12px;padding:10px 13px;background:#1378b8;border:1px solid #3194ca;font:700 9px/1 var(--mono);letter-spacing:.07em;text-transform:uppercase}.menu-toggle{display:none;justify-self:end;width:42px;height:42px;border:1px solid rgba(255,255,255,.24);background:transparent}.menu-toggle span:not(.sr-only){display:block;width:20px;height:1px;margin:5px auto;background:#fff}
.hero{position:relative;min-height:860px;padding:calc(var(--header) + 95px) max(24px,calc((100vw - var(--max))/2)) 80px;display:grid;grid-template-columns:minmax(0,.82fr) minmax(640px,1.18fr);gap:60px;align-items:center;overflow:hidden;color:#fff;background:var(--navy)}
.hero-grid{position:absolute;inset:0;opacity:.16;background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);background-size:70px 70px;mask-image:linear-gradient(90deg,transparent 0,#000 42%,#000 100%);pointer-events:none}.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 71% 36%,rgba(44,137,182,.16),transparent 36%),linear-gradient(90deg,rgba(7,17,27,.98) 0%,rgba(7,17,27,.8) 42%,rgba(7,17,27,.1) 78%);pointer-events:none}.hero-copy,.hero-visual{position:relative;z-index:2}
.eyebrow{margin:0;color:rgba(255,255,255,.58);font:600 9px/1.35 var(--mono);letter-spacing:.12em;text-transform:uppercase}.eyebrow.blue{color:var(--blue)}.eyebrow.cyan{color:var(--cyan)}.hero h1{margin:24px 0 24px;font-size:clamp(58px,6.3vw,102px);line-height:.9;letter-spacing:-.06em;font-weight:700}.hero h1 span{color:#58b5e3}.hero-summary{max-width:620px;margin:0;color:rgba(255,255,255,.68);font-size:16px;line-height:1.75}
.hero-actions{display:flex;gap:12px;margin-top:32px}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:20px;min-width:195px;min-height:46px;padding:0 16px;border:1px solid transparent;border-radius:var(--radius);font:700 9px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;transition:transform .16s ease,background .16s ease,border-color .16s ease}.button:hover{transform:translateY(-2px)}.button-primary{background:#137dbd;border-color:#2c99cf;color:#fff}.button-secondary{background:rgba(255,255,255,.035);border-color:rgba(255,255,255,.36);color:#fff}.button.disabled{opacity:.58;pointer-events:none}
.hero-model-strip{display:grid;grid-template-columns:repeat(5,1fr);max-width:680px;margin:48px 0 0;border-top:1px solid rgba(255,255,255,.18);border-bottom:1px solid rgba(255,255,255,.18)}.hero-model-strip div{padding:15px 12px;border-right:1px solid rgba(255,255,255,.12)}.hero-model-strip div:last-child{border-right:0}.hero-model-strip dt{color:rgba(255,255,255,.4);font:600 8px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase}.hero-model-strip dd{margin:7px 0 0;color:#fff;font:500 11px/1.2 var(--mono)}
.hero-visual{align-self:stretch;min-height:650px;margin-right:max(-24px,calc((100vw - var(--max))/2 * -1))}.hero-scene{width:100%;height:100%;min-height:650px;object-fit:cover}.trajectory-event circle{fill:#07111b;stroke:#d8f0fa;stroke-width:2.4}.trajectory-event line{stroke:#86aabc;stroke-width:1.2}.trajectory-event text{fill:#fff;font:600 12px var(--mono);letter-spacing:.04em}.trajectory-event .event-sub{fill:#95afbd;font-size:10px;font-weight:400}
.flight-state{position:absolute;right:24px;bottom:28px;width:280px;border:1px solid rgba(255,255,255,.28);border-radius:4px;background:rgba(5,13,20,.78);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 18px 42px rgba(0,0,0,.22)}.flight-state header{display:flex;justify-content:space-between;gap:18px;padding:12px 14px;border-bottom:1px solid rgba(255,255,255,.12);color:#d8e7ef;font:700 8px/1 var(--mono);letter-spacing:.08em}.illustrative{color:#79cfea}.flight-state dl{margin:0}.flight-state dl div{display:flex;justify-content:space-between;gap:20px;padding:10px 14px;border-bottom:1px solid rgba(255,255,255,.09)}.flight-state dt{color:rgba(255,255,255,.48);font:500 8px/1 var(--mono);text-transform:uppercase}.flight-state dd{margin:0;color:#fff;font:500 10px/1 var(--mono)}.flight-state p{margin:0;padding:11px 14px 13px;color:rgba(255,255,255,.42);font-size:9px}
.section-shell{max-width:var(--max);margin:0 auto;padding:110px 24px}.section-intro{display:grid;grid-template-columns:190px minmax(0,820px);gap:52px;margin-bottom:58px}.section-intro.compact{margin-bottom:42px}.section-number{margin:3px 0 0;color:var(--muted-2);font:600 9px/1 var(--mono);letter-spacing:.12em}.section-intro h2{margin:11px 0 0;color:var(--ink);font-size:clamp(38px,4.2vw,64px);line-height:1.02;letter-spacing:-.05em}.section-intro>div>p:last-child{max-width:760px;margin:19px 0 0;color:var(--muted);font-size:14px;line-height:1.75}
.system-section{background:var(--bg)}.system-flow{display:grid;grid-template-columns:repeat(7,minmax(112px,1fr));align-items:stretch;gap:0;border:1px solid var(--line-strong);background:#fff;box-shadow:var(--shadow)}.system-flow article{position:relative;min-height:148px;padding:23px 18px;background:#fff}.system-flow article.core{background:#e8f3f8}.system-flow article span{color:var(--muted-2);font:600 8px/1 var(--mono)}.system-flow article strong{display:block;margin-top:25px;color:var(--navy-2);font-size:13px}.system-flow article small{display:block;margin-top:7px;color:var(--muted);font-size:10px;line-height:1.5}.system-flow>i{display:grid;place-items:center;width:32px;margin-left:-16px;margin-right:-16px;z-index:2;color:var(--blue);font-style:normal;font-family:var(--mono);pointer-events:none}
.flight-section{background:#e9eef2;border-block:1px solid var(--line)}.flight-story{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line-strong);background:#fff;box-shadow:var(--shadow)}.flight-story article{min-width:0;border-right:1px solid var(--line)}.flight-story article:last-child{border-right:0}.flight-image{position:relative;height:190px;overflow:hidden;background:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(#07111b,#174b64 70%,#88b8c7);background-size:30px 30px,30px 30px,auto}.liftoff-visual::after{content:"";position:absolute;inset:auto -20% 0;height:50px;background:#354236;clip-path:polygon(0 80%,12% 45%,25% 66%,42% 28%,56% 68%,73% 38%,100% 70%,100% 100%,0 100%)}.atmosphere-visual{background:linear-gradient(#07111b 0,#153a50 42%,#4c7d91 75%,#a1bec8 100%)}.stage-visual{background:linear-gradient(#02070c 0,#071723 63%,#24485b 100%)}.orbit-visual{background:radial-gradient(circle at 58% 80%,#437083 0 20%,#18394c 21%,#071522 40%,#02060a 73%)}
.mini-rocket{position:absolute;left:50%;top:42%;width:12px;height:42px;background:#e9f1f4;clip-path:polygon(50% 0,100% 30%,82% 78%,100% 100%,0 100%,18% 78%,0 30%)}.mini-rocket::after{content:"";position:absolute;left:4px;top:37px;width:4px;height:34px;background:linear-gradient(#fff0cf,#f39a44,transparent)}.mini-rocket.vertical{transform:translate(-50%,15px)}.mini-rocket.rising{transform:translate(-50%,-8px) rotate(38deg)}.mini-rocket.upper{transform:translate(-10px,-18px) rotate(70deg)}.stage-piece{position:absolute;left:38%;top:64%;width:20px;height:8px;border:1px solid #cddde4;transform:rotate(56deg)}.orbit-ring{position:absolute;width:230px;height:80px;left:50%;top:52%;border:1px solid rgba(199,229,240,.62);border-radius:50%;transform:translate(-50%,-50%) rotate(-20deg)}.orbit-dot{position:absolute;width:9px;height:9px;left:72%;top:35%;background:#fff;border-radius:50%;box-shadow:0 0 16px #9dd8ef}
.flight-content{padding:22px 21px 24px}.flight-content>span{color:var(--blue);font:700 8px/1 var(--mono);letter-spacing:.08em}.flight-content h3{margin:13px 0 9px;color:var(--navy-2);font-size:15px;line-height:1.35}.flight-content p{margin:0;color:var(--muted);font-size:11px;line-height:1.65}.flight-content ul{display:flex;flex-wrap:wrap;gap:7px;list-style:none;margin:18px 0 0;padding:0}.flight-content li{padding:5px 7px;background:#edf3f6;color:#526a79;font:600 8px/1 var(--mono)}
.physics-section{background:#fff}.physics-workbench{display:grid;grid-template-columns:270px minmax(0,1fr);border:1px solid var(--line-strong);background:var(--surface);box-shadow:var(--shadow)}.physics-tabs{display:flex;flex-direction:column;border-right:1px solid var(--line);background:#edf2f5}.physics-tabs button{min-height:61px;padding:0 18px;border:0;border-bottom:1px solid var(--line);background:transparent;color:var(--muted);text-align:left;font:600 10px/1 var(--mono);letter-spacing:.04em;cursor:pointer}.physics-tabs button:hover{background:#e2edf3;color:var(--ink)}.physics-tabs button[aria-selected="true"]{background:#fff;color:var(--blue);box-shadow:inset 3px 0 var(--blue)}.model-panel{padding:32px}.model-title{display:grid;grid-template-columns:42px 1fr auto;align-items:start;gap:20px;padding-bottom:26px;border-bottom:1px solid var(--line)}.model-title>span:first-child{color:var(--muted-2);font:600 9px/1 var(--mono)}.model-title p{margin:0;color:var(--blue);font:700 8px/1 var(--mono);letter-spacing:.08em}.model-title h3{margin:9px 0 0;color:var(--navy-2);font-size:24px;letter-spacing:-.025em}.status{padding:6px 8px;border-radius:999px;font:700 8px/1 var(--mono);letter-spacing:.05em}.status-implemented{color:#1d694c;background:#dff0e7;border:1px solid #b8dac7}.model-specs{display:grid;grid-template-columns:1.2fr .8fr;gap:26px;padding-top:26px}.model-specs dl{margin:0}.model-specs dl div{display:grid;grid-template-columns:130px 1fr;gap:18px;padding:12px 0;border-bottom:1px solid var(--line)}.model-specs dt{color:var(--muted-2);font:600 8px/1 var(--mono);text-transform:uppercase}.model-specs dd{margin:0;color:var(--ink-2);font-size:11px}.model-specs code{color:var(--blue)}.model-note{padding:18px;background:#edf3f6;border-left:3px solid var(--blue)}.model-note span{color:var(--blue);font:700 8px/1 var(--mono);letter-spacing:.08em}.model-note p{margin:12px 0 0;color:var(--muted);font-size:11px;line-height:1.65}
.trace-section{background:var(--navy-2);color:#fff}.trace-section .section-intro h2{color:#fff}.trace-section .section-intro>div>p:last-child{color:#a8bac6}.trace-section .section-number{color:#7e97a8}.trace-flow{display:grid;grid-template-columns:1fr 55px 1fr 55px 1fr 55px 1fr;border:1px solid rgba(255,255,255,.2);background:#0a1824}.trace-flow article{min-height:150px;padding:24px 20px}.trace-flow article>span{color:#7894a6;font:700 8px/1 var(--mono);letter-spacing:.08em}.trace-flow strong{display:block;margin-top:28px;font-size:14px}.trace-flow small{display:block;margin-top:8px;color:#8fa6b5;font-size:10px}.trace-flow i{display:grid;place-items:center;border-inline:1px solid rgba(255,255,255,.1);color:var(--cyan);font-style:normal;font-family:var(--mono)}.published{color:#71d1a1}.trace-meta{display:grid;grid-template-columns:repeat(4,1fr);margin-top:18px;border:1px solid rgba(255,255,255,.16)}.trace-meta>div{position:relative;padding:18px 18px 18px 42px;border-right:1px solid rgba(255,255,255,.12)}.trace-meta>div:last-child{border-right:0}.trace-meta strong{display:block;font-size:11px}.trace-meta p{margin:5px 0 0;color:#8fa5b3;font-size:9px}.legend-dot{position:absolute;left:18px;top:21px;width:8px;height:8px;border-radius:50%}.published-dot{background:#54bd87}.derived-dot{background:#4ba9db}.estimated-dot{background:#e0a14a}.assumed-dot{background:#8b99a5}
.architecture-section{background:#f1f4f6}.architecture-board{padding:32px;border:1px solid var(--line-strong);background:linear-gradient(rgba(20,110,168,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(20,110,168,.05) 1px,transparent 1px),#fff;background-size:24px 24px;box-shadow:var(--shadow);overflow-x:auto}.architecture-layer{display:flex;justify-content:center;align-items:center;gap:14px;min-width:900px}.model-layer{justify-content:space-between}.final-layer{max-width:760px;margin:auto}.arch-node{min-width:150px;padding:15px 16px;background:#fff;border:1px solid var(--line-strong)}.arch-node span{display:block;color:var(--blue);font:700 8px/1 var(--mono);letter-spacing:.08em}.arch-node strong{display:block;margin-top:7px;color:var(--navy-2);font:600 10px/1.3 var(--mono)}.arch-node small{display:block;margin-top:8px;color:var(--muted);font-size:9px}.data-node{min-width:220px}.core-node{min-width:320px;color:#fff;background:var(--navy-2);border-color:var(--navy-2)}.core-node span{color:var(--cyan)}.core-node strong,.core-node small{color:#fff}.arch-down{width:1px;height:42px;margin:0 auto;color:var(--blue);text-align:center;font:600 16px/42px var(--mono)}.arch-arrow{color:var(--blue);font-family:var(--mono)}
.analyzer-section{background:var(--navy);color:#fff;border-top:1px solid rgba(255,255,255,.08)}.analyzer-inner{display:grid;grid-template-columns:1fr auto;align-items:center;gap:50px;padding-top:82px;padding-bottom:82px}.analyzer-inner h2{max-width:900px;margin:12px 0 0;font-size:clamp(38px,4.2vw,64px);line-height:1.02;letter-spacing:-.05em}.analyzer-inner p:last-child{max-width:720px;margin:18px 0 0;color:#9bb0bf;font-size:13px}
.site-footer{padding:46px max(24px,calc((100vw - var(--max))/2)) 28px;background:#040a0f;color:#fff}.footer-inner{display:grid;grid-template-columns:1fr auto;gap:40px;align-items:start}.footer-inner strong{font-size:13px}.footer-inner p{max-width:520px;color:#6f8493;font-size:10px}.footer-inner nav{display:flex;gap:22px;flex-wrap:wrap;color:#9eb0bd;font:600 8px/1 var(--mono);letter-spacing:.07em;text-transform:uppercase}.footer-inner a:hover{color:#fff}.footer-meta{display:flex;justify-content:space-between;gap:20px;margin-top:30px;padding-top:18px;border-top:1px solid rgba(255,255,255,.09);color:#607585;font:500 8px/1 var(--mono)}
.reveal{opacity:0;transform:translateY(16px);transition:opacity .55s ease,transform .55s ease}.reveal.visible{opacity:1;transform:none}
@media(max-width:1180px){.site-header{grid-template-columns:1fr auto}.primary-nav,.header-action{display:none}.menu-toggle{display:block}.primary-nav.open{display:flex;position:absolute;top:100%;left:0;right:0;align-items:flex-start;flex-direction:column;gap:0;padding:8px 24px 18px;background:rgba(6,15,23,.98);border-bottom:1px solid rgba(255,255,255,.12)}.primary-nav.open a{width:100%;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.08)}.primary-nav a.active::after{display:none}.hero{grid-template-columns:1fr;min-height:auto;padding-top:130px;gap:48px}.hero-copy{max-width:800px}.hero-visual,.hero-scene{min-height:590px}.hero-visual{margin-right:0}.system-flow{grid-template-columns:repeat(4,1fr)}.system-flow>i{display:none}.system-flow article{border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.flight-story{grid-template-columns:1fr 1fr}.flight-story article:nth-child(2){border-right:0}.flight-story article:nth-child(-n+2){border-bottom:1px solid var(--line)}}
@media(max-width:850px){.section-intro{grid-template-columns:1fr;gap:20px}.section-number{margin-bottom:0}.physics-workbench{grid-template-columns:1fr}.physics-tabs{flex-direction:row;overflow-x:auto;border-right:0;border-bottom:1px solid var(--line)}.physics-tabs button{min-width:140px;border-bottom:0;border-right:1px solid var(--line)}.physics-tabs button[aria-selected="true"]{box-shadow:inset 0 -3px var(--blue)}.model-specs{grid-template-columns:1fr}.trace-flow{grid-template-columns:1fr}.trace-flow i{min-height:48px;border-inline:0;border-block:1px solid rgba(255,255,255,.1);transform:rotate(90deg)}.trace-meta{grid-template-columns:1fr 1fr}.trace-meta>div:nth-child(2){border-right:0}.trace-meta>div:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.12)}.analyzer-inner{grid-template-columns:1fr}.analyzer-inner .button{justify-self:start}}
@media(max-width:650px){:root{--header:64px}.site-header{padding-inline:18px}.brand-name{display:none}.hero{padding:112px 18px 62px}.hero h1{font-size:54px}.hero-summary{font-size:14px}.hero-actions{flex-direction:column;align-items:stretch}.button{width:100%}.hero-model-strip{grid-template-columns:1fr 1fr}.hero-model-strip div{border-bottom:1px solid rgba(255,255,255,.12)}.hero-model-strip div:nth-child(2n){border-right:0}.hero-model-strip div:last-child{grid-column:1/-1;border-bottom:0}.hero-visual,.hero-scene{min-height:500px}.flight-state{left:14px;right:14px;bottom:14px;width:auto}.trajectory-event text{font-size:10px}.trajectory-event .event-sub{display:none}.section-shell{padding:78px 18px}.section-intro h2{font-size:40px}.system-flow{grid-template-columns:1fr}.system-flow article{min-height:auto;border-right:0}.flight-story{grid-template-columns:1fr}.flight-story article{border-right:0!important;border-bottom:1px solid var(--line)}.flight-story article:last-child{border-bottom:0}.model-panel{padding:22px 18px}.model-title{grid-template-columns:34px 1fr}.model-title .status{grid-column:2;justify-self:start}.model-title h3{font-size:21px}.model-specs dl div{grid-template-columns:95px 1fr}.trace-meta{grid-template-columns:1fr}.trace-meta>div{border-right:0;border-bottom:1px solid rgba(255,255,255,.12)!important}.trace-meta>div:last-child{border-bottom:0!important}.architecture-board{margin-inline:-18px;border-inline:0}.analyzer-inner{padding:70px 18px}.footer-inner{grid-template-columns:1fr}.footer-inner nav{justify-content:flex-start}.footer-meta{flex-direction:column}}
@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}}
@media(prefers-contrast:more){:root{--muted:#40515f;--line:#8fa3b2;--line-strong:#637b8d}.hero-summary{color:#e2edf2}.primary-nav a{color:#e4edf2}}