/* LUKK patrol robot site. A dark showroom: the robot is a fixed 3D stage and the copy scrolls over it. */
:root{
  --bg:#1A2133; --bg2:#141a2a; --line:#2d3855; --text:#eaf0ea; --muted:#9ba8bd; --accent:#9BB296; --warn:#f0a43a; --crit:#ff6b68;
  --head:'Bricolage Grotesque','Segoe UI',sans-serif; --body:'Hanken Grotesk','Segoe UI',sans-serif; --mono:'JetBrains Mono',Consolas,monospace;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 var(--body);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
h1,h2,h3{font-family:var(--head);letter-spacing:-.02em;line-height:1.08;margin:0;text-wrap:balance}
p{margin:0}
.wrap{width:min(1180px,100% - 48px);margin-inline:auto}
#stage{position:fixed;inset:0;z-index:0;transition:opacity .5s}
#stage canvas{display:block;width:100%;height:100%}
#stage.off{opacity:0;pointer-events:none}
.fallback{position:fixed;inset:0;display:none;place-items:center;color:var(--muted);z-index:0}
main,header,footer{position:relative;z-index:2}
/* nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:30;display:flex;align-items:center;gap:28px;padding:14px max(24px,env(safe-area-inset-right,0px)) 14px max(24px,env(safe-area-inset-left,0px));background:linear-gradient(180deg,rgba(26,33,51,.85),rgba(26,33,51,0));backdrop-filter:blur(2px)}
.mark{display:flex;align-items:center;gap:10px;font:700 20px var(--head);text-decoration:none;letter-spacing:.01em}
.mark img{height:22px;width:auto;display:block}
.mark i{width:26px;height:26px;background:var(--accent);border-radius:5px;display:grid;place-items:center;color:#1A2133;font:800 15px var(--head);font-style:normal}
.nav .links{display:flex;gap:24px;margin-left:auto;font-size:14px;color:var(--muted)}
.nav .links a{text-decoration:none}.nav .links a:hover{color:var(--text)}
.btn{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(255,255,255,.22);border-radius:6px;padding:10px 18px;font:600 14px var(--body);text-decoration:none;background:rgba(26,33,51,.4);transition:.2s;cursor:pointer;color:var(--text)}
.btn:hover{border-color:var(--text)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#1A2133}
.btn.primary:hover{box-shadow:0 0 0 4px rgba(155,178,150,.18)}
/* stage sections */
.scene{min-height:100vh;display:flex;align-items:center;padding:110px 0 70px}
.scene .col{width:min(500px,100%)}
.scene.right .col{margin-left:auto}
.eyebrow{font:500 12px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:18px;display:block}
.scene h1{font-size:clamp(40px,5.6vw,76px);margin-bottom:22px}
.scene h2{font-size:clamp(32px,4vw,52px);margin-bottom:18px}
.lead{font-size:18px;color:#b4c0cf;max-width:46ch}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.facts{display:grid;grid-template-columns:repeat(3,auto);gap:12px 34px;margin-top:44px;justify-content:start}
.facts b{display:block;font:600 30px var(--head);letter-spacing:-.02em}
.facts span{font-size:13px;color:var(--muted)}
.plist{list-style:none;margin:26px 0 0;padding:0;display:grid;gap:0;border-top:1px solid var(--line)}
.plist li{padding:14px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:140px 1fr;gap:16px}
.plist b{font-weight:600}.plist span{color:var(--muted);font-size:15px}
.hint{position:absolute;left:50%;bottom:24px;transform:translateX(-50%);font:500 11px var(--mono);letter-spacing:.16em;color:var(--muted);text-transform:uppercase}
/* callouts anchored to 3D parts */
.co{position:fixed;z-index:5;left:0;top:0;pointer-events:none;opacity:0;transition:opacity .4s;font-size:13px;white-space:nowrap}
.co i{position:absolute;width:9px;height:9px;margin:-4.5px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 5px rgba(155,178,150,.22)}
.co span{position:absolute;left:34px;top:-12px;padding:3px 10px;border:1px solid rgba(155,178,150,.5);background:rgba(26,33,51,.7);border-radius:4px;backdrop-filter:blur(4px)}
.co span:before{content:"";position:absolute;left:-26px;top:50%;width:26px;border-top:1px solid rgba(155,178,150,.5)}
.co.l span{left:auto;right:34px}.co.l span:before{left:auto;right:-26px}
/* solid sections */
.solid{background:var(--bg);position:relative;z-index:3}
.sec{padding:110px 0}
.sec h2{font-size:clamp(30px,3.6vw,46px);margin-bottom:16px}
.sec .sub{color:var(--muted);max-width:60ch;font-size:17px}
.ed{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:0;margin-top:48px;border-top:1px solid var(--line)}
.ed article{padding:28px 28px 32px 0;border-right:1px solid var(--line);margin-right:28px}
.ed article:last-child{border:0;margin:0}
.ed h3{font-size:24px;margin-bottom:6px}
.ed .tag{font:500 12px var(--mono);color:var(--accent);letter-spacing:.08em;text-transform:uppercase}
.ed ul{padding:0 0 0 18px;margin:16px 0 0;color:#b4c0cf;display:grid;gap:6px;font-size:15px}
.verify{margin-top:56px;padding:26px 28px;border:1px solid var(--line);border-radius:8px;background:var(--bg2);display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr);gap:28px}
.verify h3{font-size:20px}
.verify ul{margin:0;padding-left:18px;display:grid;gap:6px;color:#b4c0cf;font-size:15px}
.flow{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));margin-top:48px;border-top:1px solid var(--line)}
.flow div{padding:20px 14px 0 0;position:relative}
.flow div:before{content:"";position:absolute;top:-4px;left:0;width:7px;height:7px;border-radius:50%;background:var(--accent)}
.flow b{display:block;font:600 17px var(--head)}.flow span{font-size:13px;color:var(--muted)}
.frame{margin-top:44px;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--bg2);box-shadow:0 30px 80px rgba(0,0,0,.5)}
.frame .bar{display:flex;gap:7px;padding:10px 14px;border-bottom:1px solid var(--line);align-items:center;font:12px var(--mono);color:var(--muted)}
.frame .bar i{width:10px;height:10px;border-radius:50%;background:#2b322f}
.frame iframe{width:100%;height:560px;border:0;display:block;background:#f2f3f1}
.contact{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;margin-top:40px}
.office{padding:18px 0;border-bottom:1px solid var(--line)}
.office h3{font-size:18px;margin-bottom:4px}.office p{color:var(--muted);font-size:15px}
.office a{color:var(--text)}
form.lead-form{display:grid;gap:14px}
form label{display:grid;gap:6px;font-size:14px;font-weight:600}
form input,form select,form textarea{background:var(--bg2);border:1px solid var(--line);border-radius:6px;padding:11px 12px;color:var(--text);font:inherit;font-weight:400;width:100%}
form textarea{min-height:100px;resize:vertical}
.msg{min-height:1.4em;font-size:14px}
.msg.err{color:var(--crit)}.msg.ok{color:var(--accent)}
footer{background:var(--bg);border-top:1px solid var(--line);padding:28px 0;color:var(--muted);font-size:13px}
footer .wrap{display:flex;gap:20px;justify-content:space-between;flex-wrap:wrap}
.rv{transition:transform .8s cubic-bezier(.2,.7,.2,1);transform:translateY(18px)}.rv.in{transform:none}
@media(max-width:900px){
  .nav .links{display:none}.nav .btn.ghost{display:none}.nav .btn{margin-left:auto}
  .scene{align-items:flex-end;padding-bottom:40px}
  .scene .col{background:linear-gradient(180deg,rgba(26,33,51,0),rgba(26,33,51,.88) 28%);padding:60px 0 0;width:100%}
  .scene.right .col{margin:0}
  .facts{display:none}.scene h1{font-size:34px}.lead{font-size:16px}.scene .col{padding-top:40px}
  .plist li{grid-template-columns:1fr;gap:2px}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 0}
  .verify,.contact{grid-template-columns:minmax(0,1fr)}
  .ed article{border-right:0;margin:0;border-bottom:1px solid var(--line);padding-right:0}
  .co{display:none}.hint{display:none}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.rv{transform:none!important;transition:none}}