:root{
  --bg:#0B0C0E; --surface:#12141A; --surface-2:#171A21;
  --line:#22252C; --text:#F2F3F5; --muted:#9AA3AD; --dim:#6B727C;
  --blue:#378ADD; --teal:#1D9E75;
  --max:1120px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,"PingFang SC",sans-serif;
     -webkit-font-smoothing:antialiased;line-height:1.6}
h1,h2,h3,.brand{font-family:Archivo,Inter,sans-serif;letter-spacing:-.01em}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

/* header */
header{position:sticky;top:0;z-index:50;background:rgba(11,12,14,.72);backdrop-filter:blur(14px);
       border-bottom:1px solid transparent;transition:border-color .3s}
header.scrolled{border-bottom-color:var(--line)}
nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:.14em}
.brand img{width:20px;height:28px}
.nav-links{display:flex;gap:32px;font-size:14px;color:var(--muted)}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;
     font-size:14px;font-weight:500;border:1px solid var(--line);transition:.2s;white-space:nowrap}
.btn:hover{border-color:#3a3f49;background:#15181e}
.btn-primary{background:var(--text);color:#0B0C0E;border-color:var(--text)}
.btn-primary:hover{background:#fff;border-color:#fff;transform:translateY(-1px)}
.btn svg{width:14px;height:14px}
.menu-btn{display:none;background:none;border:0;color:var(--text);font-size:22px;cursor:pointer}

/* hero (home) */
.hero{padding:88px 0 40px;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.eyebrow{font-size:12px;letter-spacing:.22em;color:var(--dim);text-transform:uppercase;margin-bottom:22px}
.hero h1{font-size:clamp(40px,5.4vw,68px);font-weight:900;line-height:1.02;letter-spacing:-.03em}
.hero p.lead{margin-top:24px;font-size:17px;color:var(--muted);max-width:46ch}
.cta-row{display:flex;gap:12px;margin-top:34px;flex-wrap:wrap}
.micro{margin-top:26px;font-size:12.5px;color:var(--dim);display:flex;gap:18px;flex-wrap:wrap}
.micro span{display:flex;align-items:center;gap:6px}
.dot{width:4px;height:4px;border-radius:50%;background:var(--teal)}

/* product stage */
.stage{perspective:1400px;display:flex;align-items:center;justify-content:center;min-height:400px}
.pad{position:relative;width:100%;max-width:470px;aspect-ratio:450/400;border-radius:8px;
     background:linear-gradient(138deg,#232833 0%,#0C0E12 42%,#1A1F27 62%,#0A0C0F 100%);
     border:1px solid #2C3038;
     transform:rotateX(46deg) rotateZ(-11deg);
     box-shadow:0 60px 90px -30px rgba(0,0,0,.9),inset 0 1px 0 rgba(255,255,255,.08);
     display:flex;align-items:center;justify-content:center;overflow:hidden}
.pad::after{content:"";position:absolute;inset:0;
     background:linear-gradient(115deg,transparent 32%,rgba(255,255,255,.10) 46%,transparent 58%);}
.pad img{width:19%;opacity:.5;filter:drop-shadow(0 0 1px rgba(255,255,255,.6));transform:rotateZ(6deg)}
.stage-note{margin-top:8px;font-size:11.5px;color:var(--dim);text-align:center}

/* sections */
section{padding:96px 0;border-top:1px solid var(--line)}
.sec-head{max-width:56ch;margin-bottom:52px}
.sec-head .eyebrow{margin-bottom:14px}
.sec-head h2{font-size:clamp(26px,3.2vw,36px);font-weight:700;line-height:1.16}
.sec-head p{margin-top:14px;color:var(--muted);font-size:15.5px}

.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:26px 22px}
.card .num{font-family:Archivo;font-size:12px;color:var(--teal);letter-spacing:.18em}
.card h3{font-size:16.5px;font-weight:700;margin:14px 0 8px}
.card p{font-size:14px;color:var(--muted);line-height:1.65}

.cmp{width:100%;border-collapse:collapse;font-size:14.5px}
.cmp th,.cmp td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--line)}
.cmp th{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--dim);font-weight:500}
.cmp td:first-child{color:var(--muted);width:34%}
.cmp .us{color:var(--text);font-weight:500}
.cmp .them{color:var(--dim)}

.specs{display:grid;grid-template-columns:repeat(2,1fr);gap:0 56px}
.spec{display:flex;justify-content:space-between;padding:15px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.spec span:first-child{color:var(--dim)}
.spec span:last-child{font-weight:500}

details{border-bottom:1px solid var(--line);padding:20px 0}
details summary{list-style:none;cursor:pointer;font-size:16px;font-weight:500;display:flex;justify-content:space-between;gap:20px}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";color:var(--dim);font-size:19px;line-height:1}
details[open] summary::after{content:"−"}
details p{margin-top:12px;color:var(--muted);font-size:14.5px;max-width:70ch}

/* support block */
.contact{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:56px 48px;
         display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.contact h2{font-size:clamp(24px,3vw,32px);font-weight:700}
.contact p{color:var(--muted);margin-top:12px;font-size:15px}
.mail{font-family:Archivo;font-size:17px;letter-spacing:.02em;color:var(--teal);margin-top:18px;display:inline-block}

/* story teaser (home) */
.teaser{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.teaser h2{font-size:clamp(26px,3.2vw,36px);font-weight:700;line-height:1.16}
.teaser p{color:var(--muted);font-size:15.5px;margin-top:18px}
.teaser p + p{margin-top:12px}
.teaser .quote{border-left:2px solid var(--teal);padding-left:22px;margin-top:26px;
  font-family:Archivo;font-size:19px;line-height:1.5;color:var(--text)}

/* about page */
.page-hero{padding:96px 0 64px;border-bottom:1px solid var(--line)}
.page-hero h1{font-size:clamp(34px,4.6vw,58px);font-weight:900;line-height:1.06;letter-spacing:-.03em;max-width:24ch}
.page-hero p{margin-top:24px;color:var(--muted);font-size:17px;max-width:56ch}
.prose{max-width:68ch}
.prose h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;margin-bottom:18px;line-height:1.2}
.prose h3{font-size:17px;font-weight:700;margin:30px 0 10px}
.prose p{color:var(--muted);font-size:15.5px;margin-bottom:16px}
.prose p strong{color:var(--text);font-weight:600}
.prose ul{color:var(--muted);font-size:15.5px;margin:0 0 16px 20px}
.prose li{margin-bottom:10px}
.split{display:grid;grid-template-columns:.9fr 1.1fr;gap:64px;align-items:start}
.pullquote{border-left:2px solid var(--teal);padding:6px 0 6px 24px;margin:8px 0 26px;
  font-family:Archivo;font-size:22px;line-height:1.45;color:var(--text);font-weight:500}
.numbers{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:8px}
.numbers div{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:24px 20px}
.numbers b{font-family:Archivo;font-size:24px;font-weight:700;display:block}
.numbers span{font-size:13px;color:var(--dim);display:block;margin-top:6px}
.principles{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:12px}
.principles .card{padding:28px 24px}

/* footer */
footer{padding:44px 0 56px;border-top:1px solid var(--line);color:var(--dim);font-size:12.5px}
.foot-row{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}
.foot-links{display:flex;gap:22px}

/* motion */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

@media (max-width:900px){
  .hero{grid-template-columns:1fr;gap:36px;padding-top:56px}
  .stage{min-height:300px;order:-1}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .specs{grid-template-columns:1fr}
  .contact{grid-template-columns:1fr;padding:36px 26px}
  .teaser,.split{grid-template-columns:1fr;gap:32px}
  .numbers{grid-template-columns:1fr}
  .principles{grid-template-columns:1fr}
  .nav-links{display:none}
  .menu-btn{display:block}
  nav.open .nav-links{display:flex;position:absolute;top:72px;left:0;right:0;flex-direction:column;
    background:#0F1116;border-bottom:1px solid var(--line);padding:20px 24px;gap:18px}
  section{padding:72px 0}
  .cmp td,.cmp th{padding:13px 10px;font-size:13.5px}
  .page-hero{padding:64px 0 48px}
}