:root{
  --bg:#070d1a; --bg-alt:#0a1220; --surface:#0c1628; --border:#1a2a47; --border-strong:#26395e;
  --text:#e7edf8; --muted:#93a3c0; --accent:#3d7bff; --accent-soft:rgba(61,123,255,.14);
  --human:#9fb6dc; --glow:rgba(40,90,220,.22);
  --font:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Inter","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  --max:1120px;
}
@media (prefers-color-scheme:light){
  :root{
    --bg:#f6f8fc; --bg-alt:#eef2f9; --surface:#ffffff; --border:#d9e1ee; --border-strong:#b9c6dc;
    --text:#0b1b3a; --muted:#51617f; --accent:#1f54d6; --accent-soft:rgba(31,84,214,.09);
    --human:#0b1b3a; --glow:rgba(31,84,214,.12);
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
.sprite{position:absolute}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
a{color:inherit}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:#fff;padding:8px 14px;border-radius:6px;z-index:100}
.skip:focus{left:8px}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:3px}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.bar{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none}
.brand-mark{width:26px;height:26px;color:var(--text)}
.brand-word{font-weight:600;letter-spacing:.28em;font-size:15px}
nav ul{display:flex;gap:26px;list-style:none;margin:0;padding:0;align-items:center}
nav a{text-decoration:none;font-size:14px;color:var(--muted);transition:color .2s}
nav a:hover{color:var(--text)}
nav .nav-cta{color:var(--text);border:1px solid var(--border-strong);padding:7px 15px;border-radius:6px}
nav .nav-cta:hover{border-color:var(--accent)}

/* hero */
.hero{position:relative;overflow:hidden;padding:104px 0 112px;border-bottom:1px solid var(--border);background:radial-gradient(900px 480px at 82% -8%,var(--glow),transparent 70%)}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px);background-size:64px 64px;opacity:.35;-webkit-mask-image:radial-gradient(ellipse at 70% 20%,#000 0%,transparent 70%);mask-image:radial-gradient(ellipse at 70% 20%,#000 0%,transparent 70%)}
.hero-inner{position:relative}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin:0 0 28px}
.hero-word{width:min(300px,62vw);height:auto;color:var(--text);display:block;margin:0 0 36px}
h1{font-size:clamp(26px,3.6vw,40px);line-height:1.2;font-weight:600;letter-spacing:-.015em;max-width:21em;margin:0 0 22px}
.lede{font-size:clamp(17px,1.6vw,19px);color:var(--muted);max-width:40em;margin:0 0 38px}
.cta{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;text-decoration:none;font-size:15px;font-weight:500;padding:13px 24px;border-radius:7px;border:1px solid transparent;transition:background .2s,border-color .2s,transform .2s}
.btn.primary{background:var(--accent);color:#fff}
.btn.primary:hover{background:color-mix(in srgb,var(--accent) 86%,#fff)}
.btn.ghost{border-color:var(--border-strong);color:var(--text)}
.btn.ghost:hover{border-color:var(--accent)}

/* sections */
.section{padding:96px 0;border-bottom:1px solid var(--border)}
.section.alt{background:var(--bg-alt)}
.kicker{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin:0 0 14px}
h2{font-size:clamp(26px,3vw,36px);line-height:1.2;font-weight:600;letter-spacing:-.015em;margin:0 0 20px;max-width:20em}
h3{font-size:17px;font-weight:600;margin:0 0 10px;letter-spacing:-.005em}
.intro{color:var(--muted);max-width:46em;margin:0 0 44px}
.two{display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:start}
.prose p{margin:0 0 18px;color:var(--muted)}
.prose p:first-child{color:var(--text)}
.prose p:last-child{margin-bottom:0}

.facts{display:grid;grid-template-columns:repeat(5,1fr);margin:64px 0 0;border:1px solid var(--border);border-radius:10px;background:var(--surface);overflow:hidden}
.facts div{padding:20px 22px;border-right:1px solid var(--border)}
.facts div:last-child{border-right:0}
.facts dt{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 6px}
.facts dd{margin:0;font-size:15px;line-height:1.4}

/* flow */
.flow{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(7,1fr);border:1px solid var(--border);border-radius:10px;background:var(--surface);overflow:hidden}
.flow li{padding:20px 16px 22px;border-right:1px solid var(--border);display:flex;flex-direction:column;gap:6px;position:relative;font-size:13px;line-height:1.45;color:var(--muted)}
.flow li:last-child{border-right:0}
.flow strong{font-size:15px;color:var(--text);font-weight:600}
.flow .n{font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:.1em}
.flow li::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--border-strong)}
.flow li.claude{background:var(--accent-soft)}
.flow li.claude::before{background:var(--accent)}
.flow li.human::before{background:var(--human)}
.legend{font-size:13px;color:var(--muted);margin:14px 0 52px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.sw{display:inline-block;width:14px;height:3px;margin-left:10px}
.sw:first-child{margin-left:0}
.sw-claude{background:var(--accent)}.sw-human{background:var(--human)}

.io,.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid3{margin-top:40px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:28px}
.card p{margin:0;color:var(--muted);font-size:15.5px}
.card ul{margin:0;padding:0;list-style:none}
.card li{position:relative;padding-left:20px;margin:0 0 10px;color:var(--muted);font-size:15.5px;line-height:1.5}
.card li:last-child{margin-bottom:0}
.card li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:1px;background:var(--accent)}

/* strategy */
.strat{margin-top:40px;gap:56px}
.pillars{list-style:none;margin:32px 0 0;padding:0;display:grid;gap:22px}
.pillars li{border-left:2px solid var(--accent);padding-left:20px}
.pillars p{margin:0;font-size:15.5px;color:var(--muted)}
.pillars h3{margin-bottom:4px}
.cycle{margin:0;background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:22px 22px 16px;position:sticky;top:90px}
.cycle svg{width:100%;height:auto;display:block}
.cycle .gridlines path{stroke:var(--border);stroke-width:1;fill:none}
.cycle .wave{stroke:var(--accent);stroke-width:2.5;fill:none;stroke-linecap:round}
.cycle .ticks text{fill:var(--muted);font-family:var(--mono);font-size:12px}
.cycle figcaption{font-size:12.5px;color:var(--muted);margin-top:10px;line-height:1.5}

/* stack */
.stack{list-style:none;margin:40px 0 0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);border:1px solid var(--border);border-radius:10px;background:var(--surface);overflow:hidden}
.stack li{padding:26px 22px;border-right:1px solid var(--border)}
.stack li:last-child{border-right:0}
.stack .n{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--accent);display:block;margin-bottom:14px}
.stack p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.55}

.status{margin-top:8px;gap:20px;grid-template-columns:1fr 1fr}

/* contact */
.contact{border-bottom:0}
.person{font-size:18px;line-height:1.5}
.mail{color:var(--text);text-decoration:none;border-bottom:1px solid var(--accent);padding-bottom:1px;font-size:inherit}
.mail:hover{color:var(--accent)}

/* footer */
.site-footer{border-top:1px solid var(--border);padding:44px 0 40px;background:var(--bg-alt)}
.foot-top{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;margin-bottom:26px;font-size:15px}
.disclaimer{font-size:12.5px;line-height:1.65;color:var(--muted);max-width:62em;margin:0 0 20px}
.disclaimer strong{color:var(--text);font-weight:600}
.copy{font-size:12.5px;color:var(--muted);margin:0}

/* motion */
.js .reveal{opacity:0;transform:translateY(10px);transition:opacity .6s ease,transform .6s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none;transition:none}
}

/* responsive */
@media (max-width:980px){
  .flow{grid-template-columns:repeat(4,1fr)}
  .flow li:nth-child(4){border-right:0}
  .flow li:nth-child(n+5){border-top:1px solid var(--border)}
  .facts{grid-template-columns:repeat(3,1fr)}
  .facts div:nth-child(3){border-right:0}
  .facts div:nth-child(n+4){border-top:1px solid var(--border)}
  .stack{grid-template-columns:repeat(2,1fr)}
  .stack li{border-bottom:1px solid var(--border)}
  .stack li:nth-child(2n){border-right:0}
  .stack li:last-child{grid-column:1 / -1;border-bottom:0;border-right:0}
}
@media (max-width:820px){
  .two,.status{grid-template-columns:1fr;gap:28px}
  .io,.grid3{grid-template-columns:1fr}
  .cycle{position:static}
  nav li:not(:last-child){display:none}
  .section{padding:72px 0}
  .hero{padding:72px 0 80px}
}
@media (max-width:560px){
  body{font-size:16px}
  .flow{grid-template-columns:1fr}
  .flow li{border-right:0;border-top:1px solid var(--border)}
  .flow li:first-child{border-top:0}
  .facts{grid-template-columns:1fr}
  .facts div{border-right:0;border-top:1px solid var(--border)}
  .facts div:first-child{border-top:0}
  .stack{grid-template-columns:1fr}
  .stack li{border-right:0}
  .stack li:last-child{grid-column:auto}
  .wrap{padding:0 20px}
}

/* status */
.muted{color:var(--muted);margin:0}
.progress{list-style:none;margin:0 0 22px;padding:0;display:grid;gap:22px}
.progress .row{display:flex;justify-content:space-between;gap:20px;align-items:baseline;margin-bottom:10px;font-size:16px}
.progress .row b{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);font-weight:500;white-space:nowrap}
.track{height:4px;background:var(--border);border-radius:2px;overflow:hidden}
.track i{display:block;height:100%;background:var(--accent)}
.track .p100{width:100%}.track .p50{width:50%}
.fine{font-size:14px;color:var(--muted);margin:0}
.note{margin:28px 0 0;font-size:15px;color:var(--muted)}