:root{--ink:#090d14;--panel:#101722;--line:#263344;--white:#f5f7fa;--muted:#aab5c3;--blue:#48a8ff;--orange:#ff9b45}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--ink);color:var(--white);font:400 16px/1.65 Inter,Arial,sans-serif}a{color:inherit;text-decoration:none}nav{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px clamp(20px,5vw,72px);background:#090d14ed;border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.logo{display:flex;align-items:center;gap:10px;font-weight:700}.logo-img{width:34px;height:34px;object-fit:contain}.logo-blue,.accent{color:var(--blue)}nav ul{display:flex;align-items:center;gap:clamp(12px,2vw,28px);padding:0;margin:0;list-style:none;font-size:15px;color:var(--muted)}nav ul a:hover,footer a:hover{color:var(--blue)}.nav-right{display:flex;align-items:center;gap:16px}.lang-toggle{display:flex;gap:3px}.lang-btn{border:0;background:transparent;color:var(--muted);padding:7px;cursor:pointer}.lang-btn.active{color:var(--white)}.nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;background:var(--orange);color:#111;padding:10px 16px;border-radius:7px;font-weight:650;font-size:14px}.wrap{width:min(1080px,calc(100% - 40px));margin:auto}.hero{padding:clamp(24px,3vw,48px) 20px 48px;text-align:center;position:relative;background:radial-gradient(ellipse at 50% 0,#163253 0,transparent 55%),repeating-linear-gradient(0deg,rgba(72,168,255,.05) 0 1px,transparent 1px 64px),repeating-linear-gradient(90deg,rgba(72,168,255,.05) 0 1px,transparent 1px 64px);background-position:center top;mask-image:linear-gradient(to bottom,#000 0%,#000 75%,transparent 100%);-webkit-mask-image:linear-gradient(to bottom,#000 0%,#000 75%,transparent 100%)}.eyebrow{color:var(--blue);font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase}.hero h1{max-width:900px;margin:12px auto 18px;font-size:clamp(36px,7vw,76px);line-height:1.04;letter-spacing:-.045em}.hero p{max-width:690px;margin:0 auto 28px;color:var(--muted);font-size:clamp(16px,2vw,19px)}.section{padding:76px 0;border-top:1px solid var(--line)}.section h2{font-size:clamp(27px,4vw,42px);line-height:1.15;letter-spacing:-.03em;margin:8px 0 16px}.lead{font-size:18px;color:var(--muted);max-width:730px}.video-full{width:100%;border-block:1px solid var(--line);background:#05080c}.video-full video{display:block;width:100%;max-height:76vh;object-fit:cover}.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:32px}.flow-card{min-height:150px;padding:22px;border:1px solid var(--line);border-radius:12px;background:linear-gradient(145deg,var(--panel),#0b111a)}.flow-card b{display:block;color:var(--blue);font-size:12px;letter-spacing:.12em}.flow-card h3{font-size:18px;line-height:1.3;margin:14px 0 6px}.flow-card p,.card p{margin:0;color:var(--muted);font-size:14px}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:26px}.card{padding:24px;border:1px solid var(--line);border-radius:12px;background:var(--panel)}.card h3{margin:0 0 8px;font-size:18px}.split{display:grid;grid-template-columns:1.1fr .9fr;gap:45px;align-items:center}.diagram{padding:25px;border:1px solid var(--line);border-radius:14px;background:var(--panel)}.diagram-row{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:14px 10px;border-bottom:1px solid var(--line)}.diagram-row:last-child{border:0}.node{padding:10px 12px;border:1px solid #34516d;border-radius:8px;background:#122235;text-align:center;font-size:13px}.arrow{color:var(--blue)}.cta{padding:50px 0;text-align:center;background:#0d1520}.cta p{color:var(--muted)}footer{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:26px clamp(20px,5vw,72px);border-top:1px solid var(--line);color:var(--muted);font-size:13px}footer nav{position:static;padding:0;border:0;background:none}.footer-links{display:flex;gap:18px}.reveal{opacity:1}
[data-pl]{display:none}body.pl [data-en]{display:none}body.pl [data-pl]{display:block}body.pl span[data-pl],body.pl a[data-pl]{display:inline}body.pl span[data-en],body.pl a[data-en]{display:none}
@media(max-width:850px){nav{flex-wrap:wrap;gap:8px 16px;padding:10px 16px}nav ul{display:flex;order:3;width:100%;flex-basis:100%;overflow-x:auto;gap:20px;padding:2px 0 8px;white-space:nowrap;font-size:12px;-webkit-overflow-scrolling:touch}.nav-right{gap:8px;margin-left:auto}.nav-cta{padding:9px 11px;font-size:12px}.flow{grid-template-columns:repeat(2,1fr)}.cards{grid-template-columns:1fr}.split{grid-template-columns:1fr;gap:24px}.section{padding:55px 0}.video-full video{max-height:none;min-height:220px;object-fit:cover}footer{flex-direction:column;text-align:center}.footer-links{flex-wrap:wrap;justify-content:center}}
@media(max-width:480px){.hero{padding-top:76px}.flow{grid-template-columns:1fr}.flow-card{min-height:0}.logo-text{display:none}}
.copy-stack{max-width:840px}.copy-stack .lead{max-width:740px}
/* ── industrial diagram system (added) ── */
.tech-frame{position:relative}
.tech-frame::before,.tech-frame::after{content:'';position:absolute;width:16px;height:16px;pointer-events:none}
.tech-frame::before{top:-1px;left:-1px;border-top:1px solid var(--blue);border-left:1px solid var(--blue)}
.tech-frame::after{bottom:-1px;right:-1px;border-bottom:1px solid var(--blue);border-right:1px solid var(--blue)}

.flow-diagram{position:relative;margin-top:40px;max-width:860px;margin-left:auto;margin-right:auto}
.flow-rail{position:absolute;left:26px;right:26px;top:29px;height:1px;background-image:repeating-linear-gradient(90deg,var(--blue) 0 6px,transparent 6px 14px);opacity:.45}
.flow-nodes{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.flow-node{display:flex;flex-direction:column;align-items:flex-start;text-align:left;padding:0 6px}
.flow-node-cap{width:58px;height:58px;border-radius:50%;border:1px solid var(--line);background:var(--ink);display:flex;align-items:center;justify-content:center;color:var(--blue);position:relative;z-index:1;box-shadow:0 0 0 6px var(--ink)}
.flow-icon{width:24px;height:24px}
.flow-num{display:block;margin-top:14px;color:var(--blue);font-family:'IBM Plex Mono',ui-monospace,monospace;font-size:12px;letter-spacing:.12em}
.flow-node h3{font-size:17px;line-height:1.3;margin:8px 0 6px}
.flow-node p{margin:0;color:var(--muted);font-size:14px}

.scene-shot{padding:10px}
.scene-shot-inner{position:relative;overflow:hidden;border-radius:4px}
.scene-shot-inner img,.scene-shot-inner video{display:block;width:100%}
.callout{position:absolute;display:flex;align-items:center;gap:7px;transform:translate(-50%,-50%)}
.callout i{width:6px;height:6px;flex:none;border-radius:50%;background:var(--orange);box-shadow:0 0 0 4px rgba(255,155,69,.18)}
.callout em{font:11px/1 'IBM Plex Mono',ui-monospace,monospace;font-style:normal;letter-spacing:.03em;color:var(--white);background:#090d14dd;padding:4px 8px;border:1px solid var(--line);border-radius:3px;white-space:nowrap;backdrop-filter:blur(3px)}

.perspectives{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:30px}
.perspective{display:flex;flex-direction:column;gap:10px;padding:28px;border:1px solid var(--line);border-radius:4px;background:var(--panel);transition:border-color .2s,transform .2s}
.perspective:hover{border-color:var(--blue);transform:translateY(-2px)}
.perspective-tag{font:12px/1 'IBM Plex Mono',ui-monospace,monospace;letter-spacing:.1em;color:var(--blue)}
.perspective h3{margin:2px 0 2px;font-size:19px;line-height:1.3}
.perspective p{margin:0;color:var(--muted);font-size:14px;max-width:44ch}
.perspective-arrow{margin-top:6px;color:var(--blue);font-size:18px}

.roadmap{margin-top:44px}
.roadmap-start{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.roadmap-start b{font-family:'IBM Plex Mono',ui-monospace,monospace;color:var(--blue);font-size:12px;border:1px solid var(--line);border-radius:50%;width:26px;height:26px;display:flex;align-items:center;justify-content:center}
.roadmap-start span{font-weight:650}
.roadmap-axis{height:1px;background-image:repeating-linear-gradient(90deg,var(--blue) 0 6px,transparent 6px 14px);opacity:.45;margin-bottom:22px}
.roadmap-modules{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.roadmap-module{display:flex;align-items:center;gap:10px;padding:14px 14px;border:1px solid var(--line);border-radius:4px;background:var(--panel);font-size:13.5px;line-height:1.35}
.roadmap-module i{flex:none;width:8px;height:8px;border-radius:50%;border:1px solid var(--blue)}
.roadmap-note{margin-top:16px;color:var(--dim,var(--muted));font:12px/1 'IBM Plex Mono',ui-monospace,monospace;letter-spacing:.05em;text-transform:uppercase}

.cta-signature{margin:14px auto 0;max-width:560px;color:var(--muted);font-size:14px}

@media(max-width:850px){
  .flow-rail{display:none}
  .flow-nodes{grid-template-columns:repeat(2,1fr);row-gap:28px}
  .perspectives{grid-template-columns:1fr}
  .roadmap-modules{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:480px){
  .flow-nodes{grid-template-columns:1fr}
  .roadmap-modules{grid-template-columns:1fr}
}
/* ── demonstration cards (added) ── */
.demo-grid{display:grid;grid-template-columns:1fr;gap:18px;margin-top:8px}
.demo-card{background:var(--panel);border:1px solid var(--line);border-radius:4px;overflow:hidden}
.demo-card video{display:block;width:100%;max-height:520px;object-fit:cover;background:#000}
.demo-card-body{padding:26px 28px 28px}
.demo-card h3{margin:0 0 4px;font-size:20px;line-height:1.3}
.demo-fields{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 28px;margin:20px 0 0}
.demo-field dt{font:11px/1 'IBM Plex Mono',ui-monospace,monospace;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);margin:0 0 6px}
.demo-field dd{margin:0;color:var(--muted);font-size:14.5px;line-height:1.55}
.demo-boundary{margin:20px 0 0;padding-top:14px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted);opacity:.8}

@media(max-width:850px){
  .demo-fields{grid-template-columns:1fr}
  .demo-card-body{padding:22px}
}
/* ── homepage video demonstrations (added) ── */
.demos-section{padding-top:0}
.demo-item{border-top:1px solid var(--line)}
.demo-item .video-full{border-top:0}
.demo-caption{padding:32px 0 56px;max-width:840px}
.demo-caption h3{font-size:20px;margin:0 0 4px}



/* ── io signal panel, jak-dzialamy (added) ── */
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:45px;align-items:center}
.io-panel{border-radius:4px;overflow:hidden;background:#05080c;max-width:420px;margin:0 0 0 auto}.io-panel-standalone{max-width:640px;margin:0 auto}
.io-panel video{display:block;width:100%}
@media(max-width:850px){.split{grid-template-columns:1fr}.io-panel{margin:0 auto}}

/* ── integrators: iterate loop + teach pendant (added) ── */
.integ-split{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:start;margin-top:40px}
.integ-loop{width:100%;border-radius:4px;padding:16px}
.integ-pendant{border-radius:4px;overflow:hidden;background:var(--panel)}
.integ-pendant img{display:block;width:100%}
.integ-pendant-cap{margin:0;padding:14px 16px;font-size:12.5px;line-height:1.5;color:var(--muted);border-top:1px solid var(--line)}
@media(max-width:850px){.integ-split{grid-template-columns:1fr}}

/* ── flow-node: compact row layout on mobile + short/full mobile copy (added) ── */
@media(max-width:850px){
  .flow-node{flex-direction:row;align-items:flex-start;gap:14px}
  .flow-node-cap{width:44px;height:44px;flex:none;margin-top:2px}
  .flow-icon{width:20px;height:20px}
  .flow-node-body{flex:1;min-width:0}
  .flow-num{margin-top:0}
  .flow-node h3{margin:4px 0 4px}
  .flow-nodes{row-gap:22px}
}
.dd-short{display:none}
@media(max-width:850px){
  .demo-field .dd-full{display:none}
  .demo-field .dd-short{display:inline}
}

/* ── contact form (added) ── */
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;text-align:left}
.cta-copy h2{margin:8px 0 14px}
.cta-copy p{margin:0 0 8px}
.contact-form-wrap{padding:32px;border-radius:12px;border:1px solid var(--line);background:var(--panel)}
.contact-form{display:flex;flex-direction:column;gap:18px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-field{display:flex;flex-direction:column;gap:6px}
.form-field label{font:11px/1 'IBM Plex Mono',ui-monospace,monospace;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.form-field input,.form-field textarea,.form-field select{font-family:Inter,Arial,sans-serif;font-size:15px;padding:11px 13px;border:1px solid var(--line);background:var(--ink);color:var(--white);border-radius:6px;outline:none;transition:border-color .2s;width:100%}
.form-field input:focus,.form-field textarea:focus,.form-field select:focus{border-color:var(--blue)}
.form-field input::placeholder,.form-field textarea::placeholder{color:var(--muted);opacity:.7}
.form-field textarea{resize:vertical;min-height:80px}
.phone-row{display:flex;gap:10px}
.phone-row select{width:84px;flex:none;cursor:pointer}
.contact-form button{font-family:inherit;font-size:15px;font-weight:650;color:#111;background:var(--orange);padding:13px 26px;border:none;border-radius:7px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:opacity .2s,transform .2s;margin-top:2px}
.contact-form button:hover{opacity:.9;transform:translateY(-1px)}
.contact-form.sending button{opacity:.55;pointer-events:none}
.form-error,.form-success{display:none;margin:14px 0 0;font-size:13.5px}
.form-error.show{display:block;color:#ff8080}
.form-success.show{display:block;color:var(--blue)}
@media(max-width:850px){
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .form-row{grid-template-columns:1fr}
  .contact-form-wrap{padding:24px}
}