/* =========================================================
   PANSTAR ROBOTICS — Cinematic Steel theme
   Dark, restrained, editorial. Cool steel + white.
   (Class & variable names preserved for existing markup.)
   ========================================================= */
:root{
  /* surfaces */
  --abyss:#080b10;
  --deep:#0d141c;
  --deep-2:#111922;
  --panel:#0b1117;
  --panel-solid:#0e151d;
  /* lines */
  --line:rgba(184,201,221,.10);
  --line-2:rgba(184,201,221,.20);
  /* accent (cool steel-blue) — replaces former neon */
  --cyan:#8ea9cd;
  --cyan-bright:#dde6f1;
  --cyan-deep:#5f7ca6;
  --blue:#6f93c4;
  /* text */
  --ink:#eef2f7;
  --muted:#9aa7b5;
  --muted-2:#62707e;
  --amber:#c2ab84;        /* muted warm hint for URI-T */
  --radius:10px;
  --maxw:1200px;
  --glow:0 24px 60px rgba(0,0,0,.5);
  --font:'Space Grotesk',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --mono:'JetBrains Mono','SF Mono',ui-monospace,'Cascadia Code',monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  background:var(--abyss);
  color:var(--ink);
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
/* quiet cinematic backdrop — one soft cool wash, no neon */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(1100px 620px at 82% -12%, rgba(120,150,190,.10), transparent 62%),
    linear-gradient(180deg,#0a0f15 0%, #080b10 52%, #06080c 100%);
}

a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(90%,var(--maxw));margin-inline:auto}
section{position:relative}
::selection{background:rgba(142,169,205,.28);color:#fff}

/* ---------- type ---------- */
h1,h2,h3,h4{font-weight:500;line-height:1.08;letter-spacing:-.02em;color:#fff}
.eyebrow{
  font-family:var(--mono);font-size:.72rem;letter-spacing:.26em;text-transform:uppercase;
  color:var(--cyan);display:inline-flex;align-items:center;gap:.75em;margin-bottom:1.3rem;font-weight:500;
}
.eyebrow::before{content:"";width:28px;height:1px;background:var(--cyan);opacity:.6}
.gradient-text{
  background:linear-gradient(180deg,#ffffff 0%,#aebed2 120%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.lead{color:var(--muted);font-size:1.06rem;max-width:60ch;font-weight:400}

/* ---------- nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .4s,border-color .4s}
.nav-inner{
  width:min(90%,var(--maxw));margin:0 auto;display:flex;align-items:center;justify-content:space-between;
  padding:1.15rem 0;transition:padding .35s;
}
.nav::after{content:"";position:absolute;inset:0;z-index:-1;background:transparent;border-bottom:1px solid transparent;transition:.4s}
.nav.scrolled::after{background:rgba(8,11,16,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom-color:var(--line)}
.nav.scrolled .nav-inner{padding:.85rem 0}
.brand{display:flex;align-items:center;gap:.65rem}
.brand .logo{width:34px;height:34px;flex:0 0 auto}
.brand .brand-mark{height:34px;width:auto;display:block}
.brand b,.brand span{display:none}
footer .brand{margin-bottom:1.4rem}
footer .brand-mark{height:40px}
.nav-links{display:flex;align-items:center;gap:.2rem;list-style:none}
.nav-links a{
  font-size:.86rem;color:var(--muted);padding:.5rem .95rem;border-radius:4px;transition:.2s;letter-spacing:.01em;
}
.nav-links a:hover{color:#fff}
.nav-links a.active{color:#fff}
.nav-cta{
  font-size:.82rem;color:#fff!important;border:1px solid var(--line-2);
  padding:.55rem 1.15rem!important;border-radius:4px;margin-left:.6rem;letter-spacing:.04em;text-transform:uppercase;transition:.25s
}
.nav-cta:hover{background:#fff;color:var(--abyss)!important;border-color:#fff}
.nav-right{display:flex;align-items:center;gap:.6rem}
.lang-switch{display:inline-flex;align-items:center;gap:.4rem;background:none;border:1px solid var(--line);border-radius:4px;
  padding:.4rem .7rem;cursor:pointer;font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;color:var(--muted-2);transition:.2s}
.lang-switch:hover{border-color:var(--line-2)}
.lang-switch span[data-l]{transition:.2s}
.lang-switch span[data-l].on{color:#fff}
.lang-switch .sep{color:var(--muted-2);opacity:.6}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;width:42px;height:42px;color:var(--ink)}
.nav-toggle svg{width:26px;height:26px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.6rem;font-weight:500;font-size:.88rem;letter-spacing:.02em;
  padding:.92rem 1.7rem;border-radius:4px;cursor:pointer;border:1px solid transparent;transition:.25s;text-transform:uppercase;
}
.btn-primary{background:#fff;color:#0a0e13}
.btn-primary:hover{background:#dde6f1;transform:translateY(-1px)}
.btn-ghost{border-color:var(--line-2);color:var(--ink);background:transparent}
.btn-ghost:hover{border-color:var(--cyan);color:#fff;background:rgba(255,255,255,.03)}
.btn .arr{transition:.25s}
.btn:hover .arr{transform:translateX(4px)}

/* ---------- hero ---------- */
.hero{min-height:100vh;display:flex;align-items:center;padding:140px 0 90px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;align-items:center}
.hero h1{font-size:clamp(2.8rem,6.2vw,5.4rem);margin:.6rem 0 1.6rem;letter-spacing:-.035em;line-height:1.02}
.hero .lead{font-size:1.16rem;margin-bottom:2.4rem;max-width:46ch}
.hero-actions{display:flex;gap:1rem;flex-wrap:wrap}
.hero-stats{display:flex;gap:3rem;margin-top:3.4rem;flex-wrap:wrap;padding-top:2.2rem;border-top:1px solid var(--line)}
.hero-stats .num{font-size:1.8rem;font-weight:500;color:#fff;letter-spacing:-.01em}
.hero-stats .num span{color:#fff}
.hero-stats small{display:block;color:var(--muted-2);font-family:var(--mono);font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;margin-top:.45rem}
.hero-visual{position:relative;display:flex;justify-content:center;align-items:center;min-height:420px}
.hero-visual::before{content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:80%;height:80%;border-radius:50%;
  background:radial-gradient(circle,rgba(130,160,200,.15),transparent 68%);filter:blur(12px);z-index:1}
.hero-visual img{position:relative;z-index:2;filter:drop-shadow(0 40px 70px rgba(0,0,0,.65))}
/* legacy decorative elements removed */
.ring,.glow-orb{display:none!important}

/* ---------- section shell ---------- */
.sec{padding:8rem 0}
.sec-head{max-width:720px;margin-bottom:4rem}
.sec-head.center{margin-inline:auto;text-align:center}
.sec-head.center .eyebrow{justify-content:center}
.sec-head h2{font-size:clamp(1.9rem,3.6vw,2.9rem);margin-bottom:1.2rem;letter-spacing:-.025em}

/* ---------- cards ---------- */
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:2rem 1.9rem;transition:.3s;position:relative;overflow:hidden;
}
.card:hover{border-color:var(--line-2);background:var(--deep);transform:translateY(-3px)}
.card .ic{width:46px;height:46px;border-radius:8px;display:grid;place-items:center;margin-bottom:1.4rem;
  background:rgba(255,255,255,.02);border:1px solid var(--line);color:var(--cyan)}
.card .ic svg{width:24px;height:24px}
.card h3{font-size:1.12rem;margin-bottom:.6rem;font-weight:500}
.card p{color:var(--muted);font-size:.94rem}
.grid{display:grid;gap:1.2rem}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}

/* ---------- product split ---------- */
.product{padding:7rem 0;position:relative}
.product-row{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}
.product-row.rev .product-media{order:2}
.product-media{position:relative;border-radius:var(--radius);padding:2.5rem;min-height:380px;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(circle at 50% 42%,rgba(20,32,46,.6),rgba(8,12,18,.4));border:1px solid var(--line);overflow:hidden}
.product-media img{filter:drop-shadow(0 30px 55px rgba(0,0,0,.6));position:relative;z-index:2}
.tag{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--mono);font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;
  color:var(--muted);border:1px solid var(--line-2);border-radius:3px;padding:.35rem .85rem;margin-bottom:1.3rem}
.tag.amber{color:var(--amber);border-color:rgba(194,171,132,.32)}
.product h3{font-size:clamp(1.9rem,3.6vw,2.7rem);margin-bottom:.5rem;letter-spacing:-.025em}
.product .sub{color:var(--muted-2);font-family:var(--mono);font-size:.78rem;letter-spacing:.14em;margin-bottom:1.5rem;text-transform:uppercase}
.product p{color:var(--muted);margin-bottom:1.8rem;max-width:50ch}
.spec-mini{display:flex;gap:2.6rem;margin-bottom:2rem;flex-wrap:wrap}
.spec-mini .num{font-size:1.5rem;font-weight:500;color:#fff;letter-spacing:-.01em}
.spec-mini small{display:block;color:var(--muted-2);font-size:.66rem;font-family:var(--mono);letter-spacing:.16em;text-transform:uppercase;margin-top:.35rem}

/* ---------- spec table ---------- */
.spec-table{width:100%;border-collapse:collapse;font-size:.94rem}
.spec-table tr{border-bottom:1px solid var(--line)}
.spec-table td{padding:1rem .2rem;vertical-align:top}
.spec-table td:first-child{color:var(--muted-2);font-family:var(--mono);font-size:.78rem;letter-spacing:.04em;width:44%;text-transform:uppercase}
.spec-table td:last-child{color:var(--ink)}

/* ---------- feature list ---------- */
.flist{list-style:none;display:grid;gap:1.1rem}
.flist li{display:flex;gap:.95rem;color:var(--muted);font-size:.96rem}
.flist .chk{flex:0 0 auto;width:20px;height:20px;border-radius:4px;display:grid;place-items:center;margin-top:.2rem;
  background:rgba(255,255,255,.02);border:1px solid var(--line-2);color:var(--cyan)}
.flist .chk svg{width:12px;height:12px}
.flist b{color:#fff;font-weight:500}

/* ---------- page hero (inner pages) ---------- */
.page-hero{padding:190px 0 60px;position:relative}
.page-hero h1{font-size:clamp(2.4rem,5vw,4.2rem);margin:.7rem 0 1.2rem;letter-spacing:-.03em;line-height:1.04}
.breadcrumb{font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-2)}
.breadcrumb a:hover{color:var(--cyan)}

/* ---------- gallery ---------- */
.gallery{display:grid;grid-template-columns:repeat(12,1fr);gap:1rem}
.gallery figure{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);position:relative;background:var(--deep)}
.gallery img{width:100%;height:100%;object-fit:contain;object-position:center;background:#0a1019;transition:.8s cubic-bezier(.2,.7,.2,1)}
.gallery figure:hover img{transform:scale(1.05)}
.gallery figcaption{position:absolute;left:0;right:0;bottom:0;padding:1.6rem 1.2rem 1rem;font-size:.78rem;color:#fff;
  background:linear-gradient(transparent,rgba(4,7,12,.92));font-family:var(--mono);letter-spacing:.04em}
.gallery .big{grid-column:span 7;min-height:360px}
.gallery .sm{grid-column:span 5;min-height:360px}
.gallery .third{grid-column:span 4;min-height:250px}

/* ---------- video pair (URI-T field footage) ---------- */
.video-pair{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem;margin-top:1.4rem}
.video-card{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:#04070b;position:relative}
.video-card video{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;background:#04070b}
.video-card figcaption{padding:1rem 1.2rem;font-size:.82rem;color:var(--muted);border-top:1px solid var(--line)}
@media(max-width:780px){.video-pair{grid-template-columns:1fr}}

/* ---------- banner / concept ---------- */
.concept{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);position:relative}
.concept img{width:100%;display:block;filter:saturate(.92) brightness(.92)}
.concept .cap{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;padding:3rem;
  background:linear-gradient(110deg,rgba(6,9,14,.92),rgba(6,9,14,.15) 65%)}
.concept .cap h3{font-size:1.7rem;margin-bottom:.6rem;max-width:18ch;letter-spacing:-.02em}
.concept .cap p{color:var(--muted);max-width:44ch}
/* mobile: keep caption as an overlay, sized to fit so text isn't clipped */
@media(max-width:680px){
  .concept img{min-height:340px;object-fit:cover}
  .concept .cap{padding:1.4rem;
    background:linear-gradient(0deg,rgba(6,9,14,.94) 0%,rgba(6,9,14,.55) 55%,rgba(6,9,14,.2) 100%)}
  .concept .cap h3{font-size:1.2rem;margin-bottom:.4rem;max-width:none}
  .concept .cap p{font-size:.85rem;max-width:none}
}

/* ---------- CEO portrait ---------- */
.ceo-portrait{position:relative;max-width:330px}
.ceo-portrait img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--radius);border:1px solid var(--line-2);filter:grayscale(.18) contrast(1.02)}
.ceo-badge{position:absolute;left:1rem;bottom:1rem;background:rgba(6,10,16,.78);border:1px solid var(--line-2);
  border-radius:4px;padding:.45rem 1rem;backdrop-filter:blur(8px)}
.ceo-badge .mono{font-family:var(--mono);font-size:.66rem;letter-spacing:.18em;color:#fff}
blockquote{border:0}

/* ---------- timeline ---------- */
.timeline{position:relative;margin-top:1rem}
.timeline::before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:1px;background:var(--line-2)}
.tl-item{position:relative;padding:0 0 2.4rem 2.6rem}
.tl-item::before{content:"";position:absolute;left:0;top:5px;width:13px;height:13px;border-radius:50%;background:var(--abyss);border:1px solid var(--cyan)}
.tl-item .ph{font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan)}
.tl-item h4{font-size:1.1rem;margin:.4rem 0 .35rem;font-weight:500}
.tl-item p{color:var(--muted);font-size:.94rem}

/* ---------- CTA ---------- */
.cta-band{position:relative;border-radius:var(--radius);padding:5rem 2.5rem;text-align:center;overflow:hidden;
  border:1px solid var(--line-2);
  background:linear-gradient(180deg,var(--deep),var(--abyss))}
.cta-band::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,var(--cyan),transparent);opacity:.5}
.cta-band h2{font-size:clamp(1.9rem,3.8vw,2.9rem);margin-bottom:1.1rem;letter-spacing:-.025em}
.cta-band p{color:var(--muted);max-width:50ch;margin:0 auto 2.2rem}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:3.5rem;align-items:start}
.field{margin-bottom:1.3rem}
.field label{display:block;font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2);margin-bottom:.55rem}
.field input,.field textarea,.field select{
  width:100%;background:rgba(255,255,255,.02);border:1px solid var(--line);border-radius:6px;color:var(--ink);
  padding:.9rem 1rem;font-family:var(--font);font-size:.95rem;transition:.2s}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--cyan);background:rgba(255,255,255,.04)}
.field select{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none' stroke='%239aa7b5' stroke-width='1.5'%3E%3Cpath d='M1 1l5 5 5-5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 1rem center;padding-right:2.4rem}
.field select option{background:#11161d;color:#eef2f7}
.field textarea{min-height:130px;resize:vertical}
.contact-info .row{display:flex;gap:1rem;align-items:flex-start;padding:1.3rem 0;border-bottom:1px solid var(--line)}
.contact-info .ic{width:42px;height:42px;flex:0 0 auto;border-radius:8px;display:grid;place-items:center;background:rgba(255,255,255,.02);border:1px solid var(--line);color:var(--cyan)}
.contact-info .ic svg{width:20px;height:20px}
.contact-info small{font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2)}
.contact-info b{display:block;font-weight:400;font-size:1rem;margin-top:.25rem;color:#fff}

/* ---------- partners ---------- */
.partners{text-align:center;padding-bottom:3rem;margin-bottom:3rem;border-bottom:1px solid var(--line)}
.partners-label{display:block;font-family:var(--mono);font-size:.7rem;letter-spacing:.26em;text-transform:uppercase;color:var(--muted-2);margin-bottom:1.6rem}
.partners-logos{display:flex;align-items:center;justify-content:center;gap:1.4rem;flex-wrap:wrap}
.partner-chip{display:flex;align-items:center;justify-content:center;min-height:72px;padding:.9rem 1.7rem;
  background:#eef2f6;border:1px solid var(--line);border-radius:10px;transition:.3s}
.partner-chip:hover{transform:translateY(-2px);background:#fff}
.partner-chip img{height:52px;width:auto;display:block}
.partner-chip img.wide{height:34px}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);margin-top:6rem;padding:4.5rem 0 2.2rem}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:2.4rem;margin-bottom:3.5rem}
.foot-brand{text-align:center}
.foot-brand .brand{justify-content:center}
.foot-brand p{margin-inline:auto}
.foot-brand .pill-row{justify-content:center}
.foot-addr{font-style:normal;color:var(--muted);font-size:.9rem;display:grid;gap:.45rem;line-height:1.55;margin-top:1.1rem;max-width:36ch;margin-inline:auto}
.foot-addr a{color:var(--muted)}
.foot-addr a:hover{color:#fff}
.foot-addr b{color:#fff;font-weight:600;font-family:var(--mono);font-size:.78rem;letter-spacing:.06em}
.foot-grid h5{font-family:var(--mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted-2);margin-bottom:1.3rem}
.foot-grid ul{list-style:none;display:grid;gap:.75rem}
.foot-grid a{color:var(--muted);font-size:.9rem}
.foot-grid a:hover{color:#fff}
.foot-grid p{color:var(--muted);font-size:.9rem;max-width:36ch}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:1.8rem;border-top:1px solid var(--line);color:var(--muted-2);font-size:.78rem;flex-wrap:wrap;gap:1rem}
.foot-bottom .mono{font-family:var(--mono);letter-spacing:.1em}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}.reveal.d4{transition-delay:.32s}

/* ---------- hero background video (full-bleed) ---------- */
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;filter:brightness(.66) saturate(1.02) contrast(1.03)}
.hero-veil{position:absolute;inset:0;z-index:0;pointer-events:none;
  background:linear-gradient(90deg,rgba(4,7,11,.88) 0%,rgba(4,7,11,.55) 45%,rgba(4,7,11,.2) 100%),
             linear-gradient(0deg,rgba(4,7,11,.65) 0%,rgba(4,7,11,0) 42%)}
.hero .container{position:relative;z-index:1}
@media(prefers-reduced-motion:reduce){.hero-bg{display:none}}
/* mobile: full-frame 16:9 video pinned directly behind the headline */
@media(max-width:680px){
  .hero{min-height:auto;align-items:flex-start;padding:calc(72px + 1.2rem) 0 4rem;background:var(--abyss)}
  .hero-bg{top:calc(72px + 1.2rem);bottom:auto;left:0;right:0;width:100%;height:56.25vw;
    object-fit:cover;object-position:center;background:var(--abyss)}
  .hero-veil{top:calc(72px + 1.2rem);bottom:auto;left:0;right:0;height:56.25vw;
    background:linear-gradient(0deg,rgba(8,11,16,.6) 0%,rgba(8,11,16,.3) 50%,rgba(8,11,16,.55) 100%)}
}

/* ---------- misc ---------- */
.divider{height:1px;background:var(--line);margin:0 auto;width:min(90%,var(--maxw))}
.pill-row{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1.6rem}
.pill{font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;color:var(--muted);border:1px solid var(--line);border-radius:4px;padding:.42rem .9rem}
.pill.on{color:#fff;border-color:var(--line-2)}

/* ---------- interactive 3D viewer ---------- */
.r3d{display:grid;grid-template-columns:1.55fr .9fr;gap:1.2rem;align-items:stretch}
.r3d-stage{position:relative;border-radius:var(--radius);border:1px solid var(--line);overflow:hidden;
  background:
    radial-gradient(900px 420px at 50% 110%, rgba(40,70,105,.22), transparent 65%),
    linear-gradient(180deg,#0a1119 0%,#070b11 100%);
  min-height:520px;cursor:grab;touch-action:pan-y}
.r3d-stage.grabbing{cursor:grabbing}
.r3d-stage.loading::before{content:"LOADING 3D MODEL";position:absolute;inset:auto 0 50% 0;text-align:center;z-index:3;
  font-family:var(--mono);font-size:.66rem;letter-spacing:.3em;color:var(--muted-2);animation:r3dLoad 1.2s ease-in-out infinite}
@keyframes r3dLoad{0%,100%{opacity:.35}50%{opacity:1}}
.r3d-stage canvas{display:block;width:100%;height:100%;position:absolute;inset:0}
.r3d-dots{position:absolute;inset:0;pointer-events:none}
.r3d-dot{position:absolute;transform:translate(-50%,-50%);pointer-events:auto;cursor:pointer;
  width:26px;height:26px;border-radius:50%;border:1px solid rgba(140,200,235,.55);
  background:rgba(10,18,26,.72);backdrop-filter:blur(4px);color:#bfe5f5;
  font-family:var(--mono);font-size:.62rem;display:grid;place-items:center;transition:background .2s,color .2s,border-color .2s,opacity .3s}
.r3d-dot::after{content:"";position:absolute;inset:-7px;border-radius:50%;border:1px solid rgba(140,200,235,.25);
  animation:r3dPing 2.6s ease-out infinite}
@keyframes r3dPing{0%{transform:scale(.65);opacity:.9}70%{transform:scale(1.25);opacity:0}100%{opacity:0}}
.r3d-dot:hover{border-color:#9fe2f5;color:#fff}
.r3d-dot.on{background:#5fc8e8;border-color:#9fe2f5;color:#04222e;font-weight:700}
.r3d-dot.on::after{animation:none;opacity:0}
.r3d-dot.far{opacity:.32}
.r3d-hint{position:absolute;left:1.1rem;bottom:.95rem;font-size:.64rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--muted-2);pointer-events:none;background:rgba(7,11,17,.6);padding:.35rem .7rem;border-radius:4px}
.r3d-reset{position:absolute;right:1rem;top:1rem;font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--muted);background:rgba(10,16,24,.7);border:1px solid var(--line-2);border-radius:4px;
  padding:.42rem .8rem;cursor:pointer;transition:.2s}
.r3d-reset:hover{color:#fff;border-color:var(--cyan)}
.r3d-panel{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel);padding:1.5rem 1.4rem;min-width:0}
.r3d-eyebrow{font-size:.66rem;letter-spacing:.24em;text-transform:uppercase;color:var(--cyan);margin-bottom:1rem}
.r3d-list{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:.35rem;margin-bottom:1.2rem}
.r3d-list button{display:flex;align-items:center;gap:.55rem;width:100%;text-align:left;background:none;
  border:1px solid transparent;border-radius:6px;padding:.45rem .55rem;cursor:pointer;color:var(--muted);
  font-family:var(--font);font-size:.8rem;transition:.18s;min-width:0}
.r3d-list button i{flex:0 0 auto;font-style:normal;font-family:var(--mono);font-size:.6rem;width:18px;height:18px;border-radius:50%;
  display:grid;place-items:center;border:1px solid var(--line-2);color:var(--muted-2);transition:.18s}
.r3d-list button .r3d-item-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.r3d-list button:hover{color:#fff;border-color:var(--line)}
.r3d-list button.on{color:#fff;background:rgba(95,200,232,.08);border-color:rgba(95,200,232,.35)}
.r3d-list button.on i{border-color:#5fc8e8;color:#5fc8e8}
.r3d-desc{margin-top:auto;border-top:1px solid var(--line);padding-top:1.1rem;min-height:7.5rem}
.r3d-desc h4{font-size:1.02rem;font-weight:500;margin-bottom:.45rem;color:#fff}
.r3d-desc p{color:var(--muted);font-size:.88rem;line-height:1.65}
.r3d-desc.on h4{color:#9fe2f5}
/* 3D viewer embedded in the Technical profile column: model only, no device panel */
.product-row .r3d{grid-template-columns:1fr;gap:1rem}
.product-row .r3d-stage{min-height:480px}
.product-row .r3d-panel{display:none}
.product-row .r3d-dots{display:none}
.product-row .r3d-hint{display:none}
@media(max-width:980px){
  .r3d{grid-template-columns:1fr}
  .r3d-stage{min-height:380px}
  .r3d-list{grid-template-columns:1fr 1fr}
  .r3d-desc{min-height:0}
}
@media(max-width:480px){.r3d-list{grid-template-columns:1fr}}

/* ---------- responsive ---------- */
@media(max-width:980px){
  .hero-grid,.product-row,.contact-grid{grid-template-columns:1fr}
  .product-row{gap:2.5rem}
  .product-row.rev .product-media{order:0}
  .hero-visual{min-height:320px;margin-top:1rem}
  .g-4{grid-template-columns:repeat(2,1fr)}.g-3{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .sec{padding:5.5rem 0}
}
@media(max-width:680px){
  .nav-links{
    position:fixed;top:70px;left:5%;right:5%;flex-direction:column;align-items:stretch;gap:.1rem;
    background:rgba(8,12,18,.97);backdrop-filter:blur(18px);border:1px solid var(--line);border-radius:10px;padding:1rem;
    transform:translateY(-12px);opacity:0;pointer-events:none;transition:.3s}
  .nav-links.open{transform:none;opacity:1;pointer-events:auto}
  .nav-links a{padding:.85rem 1rem}
  .nav-cta{margin-left:0;text-align:center}
  .nav-toggle{display:grid;place-items:center}
  .g-2,.g-4{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .hero-stats{gap:1.8rem}
}