:root{
    --gunmetal:#17191E;
    --iron:#22252C;
    --iron-line:#33373F;
    --paper:#ECEDE8;
    --paper-line:#CBCEC3;
    --ink:#1B1D21;
    --muted-dark:#9AA0AA;   /* muted text on dark */
    --muted-light:#5C6067;  /* muted text on light */
    --torch:#FF4E00;
    --torch-hi:#FF6A1A;    /* brighter tier for text on dark — 6.1:1 on gunmetal */
    --torch-deep:#C23800;  /* darker tier for text on paper — 4.6:1, passes AA */
    --display:'Big Shoulders Display','Big Shoulders',Impact,sans-serif;
    --body:'Archivo',system-ui,sans-serif;
    --mono:'IBM Plex Mono',ui-monospace,monospace;
    --max:1180px;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    font-family:var(--body);
    background:var(--paper);
    color:var(--ink);
    line-height:1.6;
    font-size:16px;
  }
  img{max-width:100%}
  a{color:inherit}
  :focus-visible{outline:3px solid var(--torch);outline-offset:3px}

  /* ---------- utilities ---------- */
  .wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
  .eyebrow{
    font-family:var(--mono);
    font-size:.75rem;
    letter-spacing:.18em;
    text-transform:uppercase;
    display:inline-flex;
    align-items:center;
    gap:.6em;
  }
  .eyebrow::before{content:"";width:10px;height:10px;background:var(--torch);display:inline-block}
  .stripe{
    height:8px;
    background:var(--torch);
  }

  /* ---------- nav ---------- */
  .nav{
    background:var(--gunmetal);
    color:#fff;
    border-bottom:1px solid var(--iron-line);
    position:sticky;top:0;z-index:50;
  }
  .nav-inner{
    display:flex;align-items:center;justify-content:space-between;
    padding:14px 24px;max-width:var(--max);margin:0 auto;
  }
  .brand{
    display:flex;align-items:center;gap:12px;text-decoration:none;
  }
  .brand-mark{
    width:34px;height:34px;background:var(--torch);
    display:grid;place-items:center;
    font-family:var(--display);font-weight:800;font-size:1.1rem;color:var(--gunmetal);
  }
  .brand-name{
    font-family:var(--display);font-weight:700;font-size:1.25rem;letter-spacing:.06em;
  }
  .nav-links{display:flex;align-items:center;gap:26px;list-style:none}
  .nav-links a{
    text-decoration:none;font-size:.9rem;font-weight:500;color:#D7DAE0;
  }
  .nav-links a:hover{color:#fff}
  .btn{
    display:inline-block;text-decoration:none;font-weight:600;
    padding:12px 22px;border:2px solid var(--torch);
    font-size:.9rem;letter-spacing:.02em;
    transition:background .15s ease,color .15s ease;
  }
  .btn-solid{background:var(--torch);color:var(--gunmetal)}
  .btn-solid:hover{background:var(--torch-deep);border-color:var(--torch-deep);color:#fff}
  .btn-ghost{color:#fff}
  .btn-ghost:hover{background:var(--torch);color:var(--gunmetal)}
  .btn-dark{color:var(--gunmetal)}
  .btn-dark:hover{background:var(--torch);color:var(--gunmetal)}
  .nav-toggle{
    display:none;background:none;border:2px solid var(--iron-line);
    color:#fff;font-family:var(--mono);font-size:.8rem;padding:8px 12px;cursor:pointer;
  }

  /* ---------- hero ---------- */
  .hero{background:var(--gunmetal);color:#fff;padding:88px 0 96px}
  .hero .eyebrow{color:var(--muted-dark)}
  .hero-grid{
    display:grid;grid-template-columns:1.4fr .9fr;gap:56px;align-items:end;margin-top:28px;
  }
  h1{
    font-family:var(--display);font-weight:800;
    font-size:clamp(3.2rem,8.5vw,7rem);
    line-height:.95;letter-spacing:.01em;text-transform:uppercase;
  }
  h1 .accent{color:var(--torch)}
  .hero-sub{
    margin-top:26px;font-size:1.1rem;color:#C9CDD4;max-width:34em;
  }
  .hero-ctas{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}

  .plate{
    border:1px solid var(--iron-line);
    background:var(--iron);
    padding:26px 26px 20px;
    position:relative;
  }
  .plate::before,.plate::after,
  .plate .rivet-b::before,.plate .rivet-b::after{
    content:"";position:absolute;width:8px;height:8px;border-radius:50%;
    background:#3D424B;box-shadow:inset 0 1px 2px rgba(0,0,0,.6);
  }
  .plate::before{top:8px;left:8px}
  .plate::after{top:8px;right:8px}
  .plate .rivet-b::before{bottom:8px;left:8px}
  .plate .rivet-b::after{bottom:8px;right:8px}
  .plate-title{
    font-family:var(--mono);font-size:.7rem;letter-spacing:.2em;
    color:var(--muted-dark);text-transform:uppercase;margin-bottom:16px;
  }
  .plate-row{
    display:flex;justify-content:space-between;gap:16px;
    padding:11px 0;border-top:1px solid var(--iron-line);
    font-family:var(--mono);font-size:.85rem;
  }
  .plate-row dt{color:var(--muted-dark)}
  .plate-row dd{color:#fff;font-weight:600;text-align:right}

  /* ---------- section shells ---------- */
  .section{padding:96px 0}
  .section-dark{background:var(--gunmetal);color:#fff}
  .section-head{max-width:52em;margin-bottom:52px}
  h2{
    font-family:var(--display);font-weight:800;text-transform:uppercase;
    font-size:clamp(2.4rem,5vw,4rem);line-height:1;margin-top:14px;
  }
  .section-head p{margin-top:16px;color:var(--muted-light);font-size:1.05rem;max-width:38em}
  .section-dark .section-head p{color:#C9CDD4}
  .section-dark .eyebrow{color:var(--muted-dark)}

  /* ---------- catalog (services) ---------- */
  .catalog{
    display:grid;grid-template-columns:repeat(2,1fr);gap:22px;
  }
  .cat-group{
    grid-column:1/-1;display:flex;align-items:center;gap:14px;
    font-family:var(--mono);font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;
    color:var(--muted-light);margin-top:30px;
  }
  .cat-group:first-child{margin-top:0}
  .cat-group::before{content:"";width:10px;height:10px;background:var(--torch);flex-shrink:0}
  .cat-group::after{content:"";flex:1;height:2px;background:var(--paper-line)}
  .spec{
    background:#fff;border:1px solid var(--paper-line);
    display:flex;flex-direction:column;
  }
  .spec-top{
    display:flex;justify-content:space-between;align-items:center;
    padding:14px 22px;border-bottom:1px solid var(--paper-line);
    font-family:var(--mono);font-size:.75rem;letter-spacing:.12em;
  }
  .spec-no{color:var(--torch-deep);font-weight:600}
  .spec-tag{color:var(--muted-light);text-transform:uppercase}
  .spec-body{padding:24px 22px 26px;flex:1;display:flex;flex-direction:column}
  .spec h3{
    font-family:var(--display);font-weight:700;text-transform:uppercase;
    font-size:1.9rem;line-height:1;
  }
  .spec-desc{margin-top:10px;color:var(--muted-light);font-size:.95rem}
  .spec ul{list-style:none;margin:18px 0 24px;flex:1}
  .spec li{
    padding:8px 0 8px 22px;position:relative;font-size:.92rem;
    border-bottom:1px dashed var(--paper-line);
  }
  .spec li:last-child{border-bottom:none}
  .spec li::before{
    content:"";position:absolute;left:0;top:15px;width:9px;height:9px;background:var(--torch);
  }
  .spec-foot{
    display:flex;justify-content:space-between;align-items:center;gap:14px;
    margin-top:auto;
  }
  .price-plate{
    background:var(--gunmetal);color:#fff;
    font-family:var(--mono);
    padding:12px 16px;line-height:1.25;
  }
  .price-plate .from{
    display:block;font-size:.62rem;letter-spacing:.2em;color:var(--muted-dark);text-transform:uppercase;
  }
  .price-plate .amount{font-size:1.25rem;font-weight:600;color:var(--torch-hi)}
  .price-plate .per{font-size:.75rem;color:#C9CDD4}
  .spec-cta{
    font-weight:600;font-size:.9rem;text-decoration:none;
    border-bottom:2px solid var(--torch);padding-bottom:2px;
  }
  .spec-cta:hover{color:var(--torch-deep)}
  .spec-wide{grid-column:1/-1}
  .rate-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:18px 0 22px}
  .rate{
    background:var(--paper);border:1px solid var(--paper-line);
    padding:16px 16px 14px;display:flex;flex-direction:column;gap:6px;
  }
  .rate-name{
    font-family:var(--mono);font-size:.68rem;letter-spacing:.2em;
    text-transform:uppercase;color:var(--torch-deep);font-weight:600;
  }
  .rate p{font-size:.85rem;color:var(--muted-light);flex:1}
  .rate-price{font-family:var(--mono);font-weight:600;font-size:1.05rem;color:var(--ink)}
  .rate-price span{font-size:.75rem;color:var(--muted-light);font-weight:400}
  .rate-stack{grid-template-columns:1fr}
  .spec .plist li{padding-left:0;display:flex;justify-content:space-between;gap:12px}
  .spec .plist li::before{content:none}
  .pl-p{font-family:var(--mono);font-weight:600;color:var(--torch-deep);white-space:nowrap}

  /* ---------- field report (case study) ---------- */
  .case-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
  .case-copy h3{
    font-family:var(--display);font-weight:800;text-transform:uppercase;
    font-size:clamp(2rem,4vw,3.1rem);line-height:1;margin-top:14px;
  }
  .case-copy p{margin-top:18px;color:#C9CDD4;max-width:36em}
  .case-meta{
    margin-top:26px;display:flex;gap:26px;flex-wrap:wrap;
    font-family:var(--mono);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;
  }
  .case-meta span{color:var(--muted-dark)}
  .case-meta strong{color:var(--torch);font-weight:600}
  .ticket{
    background:var(--iron);border:1px solid var(--iron-line);padding:26px;
  }
  .ticket-head{
    display:flex;justify-content:space-between;align-items:center;
    font-family:var(--mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;
    color:var(--muted-dark);padding-bottom:14px;border-bottom:1px solid var(--iron-line);
  }
  .live-dot{
    display:inline-flex;align-items:center;gap:8px;color:#fff;
  }
  .live-dot::before{
    content:"";width:9px;height:9px;border-radius:50%;background:var(--torch);
    animation:pulse 2s infinite;
  }
  @keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
  .ticket-line{
    font-family:var(--mono);font-size:.86rem;line-height:1.55;
    padding:12px 0;border-bottom:1px dashed var(--iron-line);
  }
  .ticket-line:last-child{border-bottom:none}
  .ticket-line .who{color:var(--torch);font-weight:600}
  .ticket-line .who.caller{color:var(--muted-dark)}
  .ticket-line .txt{color:#E4E7EC}

  /* ---------- shipped ---------- */
  .ship-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
  a.chip{text-decoration:none}
  a.chip:hover{background:var(--torch);color:var(--gunmetal)}
  .ship{
    background:#fff;border:1px solid var(--paper-line);padding:24px 22px 20px;
    display:flex;flex-direction:column;gap:10px;
  }
  .ship h3{
    font-family:var(--display);font-weight:700;text-transform:uppercase;font-size:1.6rem;line-height:1;
  }
  .ship p{color:var(--muted-light);font-size:.92rem;flex:1}
  .ship-meta{
    display:flex;justify-content:space-between;align-items:center;gap:10px;
    font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;
    color:var(--muted-light);padding-top:12px;border-top:1px solid var(--paper-line);
  }
  .chip{
    padding:4px 9px;font-weight:600;white-space:nowrap;
  }
  .chip-live{background:var(--gunmetal);color:var(--torch-hi)}
  .chip-new{background:var(--torch);color:var(--gunmetal)}
  .chip-prod{background:#DDDFD6;color:var(--ink)}

  /* ---------- process ---------- */
  .steps{display:grid;grid-template-columns:repeat(var(--cols,4),1fr);gap:22px;counter-reset:step}
  .step{
    border-top:4px solid var(--gunmetal);padding-top:18px;
  }
  .step-no{
    font-family:var(--mono);font-size:.78rem;letter-spacing:.18em;color:var(--torch-deep);font-weight:600;
  }
  .step h3{
    font-family:var(--display);font-weight:700;text-transform:uppercase;font-size:1.6rem;margin-top:6px;
  }
  .step p{color:var(--muted-light);font-size:.93rem;margin-top:8px}

  /* ---------- faq ---------- */
  .faq{max-width:56em}
  .faq details{
    background:#fff;border:1px solid var(--paper-line);margin-bottom:14px;
  }
  .faq summary{
    cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;
    padding:20px 22px;font-weight:600;font-size:1rem;
  }
  .faq summary::-webkit-details-marker{display:none}
  .faq summary::after{
    content:"+";font-family:var(--mono);font-size:1.2rem;color:var(--torch-deep);flex-shrink:0;
  }
  .faq details[open] summary::after{content:"–"}
  .faq details p{padding:0 22px 20px;color:var(--muted-light);font-size:.95rem;max-width:44em}

  /* ---------- order builder ---------- */
  .ob-grid{display:grid;grid-template-columns:1.35fr .95fr;gap:26px;align-items:start}
  .ob-cat{
    font-family:var(--mono);font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;
    color:var(--muted-light);display:flex;align-items:center;gap:14px;margin:28px 0 10px;
  }
  .ob-cat:first-child{margin-top:0}
  .ob-cat::before{content:"";width:10px;height:10px;background:var(--torch);flex-shrink:0}
  .ob-cat::after{content:"";flex:1;height:2px;background:var(--paper-line)}
  .ob-item{background:#fff;border:1px solid var(--paper-line);margin-bottom:8px}
  .ob-item.on{border-color:var(--torch)}
  .ob-row{display:flex;align-items:center;gap:14px;padding:14px 16px;cursor:pointer}
  .ob-check{position:absolute;opacity:0;pointer-events:none}
  .ob-box{
    width:20px;height:20px;border:2px solid var(--paper-line);flex-shrink:0;
    display:grid;place-items:center;background:var(--paper);
  }
  .ob-check:focus-visible + .ob-box{outline:3px solid var(--torch);outline-offset:2px}
  .ob-item.on .ob-box{background:var(--torch);border-color:var(--torch)}
  .ob-item.on .ob-box::after{content:"";width:10px;height:10px;background:var(--gunmetal)}
  .ob-name{flex:1;font-size:.95rem;line-height:1.35}
  .ob-name b{
    font-family:var(--mono);font-size:.72rem;color:var(--torch-deep);
    font-weight:600;letter-spacing:.08em;margin-right:9px;
  }
  .ob-price{font-family:var(--mono);font-size:.85rem;font-weight:600;white-space:nowrap}
  .ob-detail{display:none;padding:0 16px 14px 50px}
  .ob-item.on .ob-detail{display:block}
  .ob-hint{font-size:.8rem;color:var(--muted-light);margin-bottom:8px}
  .ob-field,.ob-sel{
    width:100%;font-family:var(--body);font-size:.9rem;padding:10px 12px;
    border:1px solid var(--paper-line);background:var(--paper);color:var(--ink);
  }
  .ob-sel{margin-bottom:8px}
  .ob-sum{
    position:sticky;top:84px;
    background:var(--gunmetal);color:#fff;border:1px solid var(--iron-line);padding:24px;
  }
  .ob-note{
    margin-top:14px;padding:10px 12px;background:var(--iron);border-left:4px solid var(--torch);
    font-size:.85rem;color:#E4E7EC;
  }
  .ob-fine{margin-top:12px;font-size:.78rem;color:var(--muted-dark)}
  .ob-you{margin-top:18px;display:flex;flex-direction:column;gap:8px}
  .ob-in{
    width:100%;font-family:var(--body);font-size:.9rem;padding:11px 12px;
    background:var(--iron);border:1px solid var(--iron-line);color:#fff;
  }
  .ob-in::placeholder{color:var(--muted-dark)}
  .ob-send{display:block;text-align:center;margin-top:18px}
  .ob-send.off{opacity:.45;pointer-events:none}

  /* ---------- cta ---------- */
  .cta{background:var(--gunmetal);color:#fff;text-align:center;padding:110px 0}
  .cta h2{font-size:clamp(3rem,8vw,6rem)}
  .cta p{margin:20px auto 0;color:#C9CDD4;max-width:34em}
  .cta .btn{margin-top:36px;font-size:1rem;padding:16px 34px}
  .cta-mail{
    display:block;margin-top:22px;font-family:var(--mono);font-size:.85rem;
    color:var(--muted-dark);letter-spacing:.08em;text-decoration:none;
  }
  .cta-mail:hover{color:var(--torch)}

  /* ---------- footer ---------- */
  footer{background:var(--gunmetal);color:var(--muted-dark);border-top:1px solid var(--iron-line);padding:34px 0}
  .foot-inner{
    display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;
    font-family:var(--mono);font-size:.75rem;letter-spacing:.1em;
  }
  .foot-inner a{color:var(--muted-dark);text-decoration:none}
  .foot-inner a:hover{color:#fff}

  /* ---------- reveal ---------- */
  .reveal{opacity:0;transform:translateY(18px);transition:opacity .55s ease,transform .55s ease}
  .reveal.in{opacity:1;transform:none}
  @media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto}
    .reveal{opacity:1;transform:none;transition:none}
    .live-dot::before{animation:none}
  }

  /* ---------- responsive ---------- */
  @media (max-width:960px){
    .hero-grid,.case-grid{grid-template-columns:1fr;gap:40px}
    .ob-grid{grid-template-columns:1fr}
    .ob-sum{position:static}
    .catalog{grid-template-columns:1fr}
    .ship-grid{grid-template-columns:repeat(2,1fr)}
    .steps{grid-template-columns:repeat(2,1fr)}
  }
  @media (max-width:640px){
    .nav-links{
      display:none;position:absolute;top:100%;left:0;right:0;
      background:var(--gunmetal);flex-direction:column;align-items:flex-start;
      padding:18px 24px 24px;gap:18px;border-bottom:1px solid var(--iron-line);
    }
    .nav-links.open{display:flex}
    .nav-toggle{display:block}
    .ship-grid,.steps{grid-template-columns:1fr}
    .rate-row{grid-template-columns:1fr}
    .section{padding:72px 0}
    .hero{padding:64px 0 72px}
  }

/* ---------- catalog card links ---------- */
.spec h3 a{text-decoration:none;color:inherit}
.spec h3 a:hover{color:var(--torch-deep)}
.spec-links{display:flex;flex-direction:column;align-items:flex-end;gap:10px}

/* ---------- service pages ---------- */
.crumb{
  font-family:var(--mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--muted-dark);display:flex;align-items:center;gap:10px;flex-wrap:wrap;
}
.crumb a{color:var(--muted-dark);text-decoration:none}
.crumb a:hover{color:var(--torch)}
.crumb .sep{color:var(--iron-line)}
.crumb .here{color:var(--torch-hi);font-weight:600}
.hero-svc{background:var(--gunmetal);color:#fff;padding:64px 0 80px}
.hero-svc h1{font-size:clamp(2.8rem,7vw,5.6rem);margin-top:20px}
.hero-svc .lede{margin-top:22px;font-size:1.12rem;color:#C9CDD4;max-width:36em}
.hero-svc-grid{display:grid;grid-template-columns:1.4fr .9fr;gap:56px;align-items:end}
.svc-tagline{
  font-family:var(--mono);font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted-dark);margin-top:18px;
}
.inc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.inc{background:#fff;border:1px solid var(--paper-line);padding:22px 22px 20px;position:relative}
.inc::before{content:"";position:absolute;top:0;left:0;width:34px;height:4px;background:var(--torch)}
.inc h3{font-family:var(--display);font-weight:700;text-transform:uppercase;font-size:1.35rem;line-height:1.05}
.inc p{margin-top:8px;color:var(--muted-light);font-size:.93rem}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rel{
  background:#fff;border:1px solid var(--paper-line);padding:20px 20px 18px;
  text-decoration:none;display:flex;flex-direction:column;gap:8px;
  transition:border-color .15s ease;
}
.rel:hover{border-color:var(--torch)}
.rel-no{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;color:var(--torch-deep);font-weight:600}
.rel h3{font-family:var(--display);font-weight:700;text-transform:uppercase;font-size:1.45rem;line-height:1.05}
.rel p{color:var(--muted-light);font-size:.88rem;flex:1}
.rel-price{font-family:var(--mono);font-size:.82rem;font-weight:600;color:var(--ink)}
.svc-local{max-width:52em;color:var(--muted-light);font-size:1.02rem}
.svc-local strong{color:var(--ink)}
/* svc-local sits in .section-dark on every service page: --ink (#1B1D21) on
   gunmetal is 1.04:1, effectively invisible. torch-hi is 6.14:1, passes AA. */
.section-dark .svc-local strong{color:var(--torch-hi)}

/* ---------- footer nav ---------- */
.foot-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:28px;
  padding-bottom:28px;margin-bottom:24px;border-bottom:1px solid var(--iron-line);
}
.foot-col h4{
  font-family:var(--mono);font-size:.68rem;letter-spacing:.22em;text-transform:uppercase;
  color:#fff;margin-bottom:12px;font-weight:600;
}
.foot-col ul{list-style:none}
.foot-col li{padding:3px 0}
.foot-col a{
  color:var(--muted-dark);text-decoration:none;font-size:.82rem;font-family:var(--body);
}
.foot-col a:hover{color:var(--torch)}
@media (max-width:960px){
  .hero-svc-grid{grid-template-columns:1fr;gap:36px}
  .inc-grid,.rel-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  .foot-grid{grid-template-columns:1fr 1fr;gap:22px}
}

/* ---------- VI-15 live 3D demo (/services/3d-product-views/) ---------- */
.demo3d{max-width:880px;margin:0 auto}
.demo3d-lede{max-width:720px;margin:14px 0 0;color:var(--muted-light);font-size:1.02rem;line-height:1.6}
.demo3d-stage{
  position:relative;height:clamp(340px,52vw,520px);overflow:hidden;
  background:radial-gradient(120% 90% at 50% 32%,#242833 0%,#14161b 58%,#0b0c0f 100%);
  border:1px solid var(--iron-line);
}
.demo3d-stage::before{content:"";position:absolute;left:0;right:0;top:0;height:6px;background:var(--torch);z-index:2}
.demo3d-stage canvas{
  position:absolute;inset:0;width:100%!important;height:100%!important;
  opacity:0;transition:opacity .6s ease;touch-action:none;
}
.demo3d-stage.is-live canvas{opacity:1}
.demo3d-poster{
  position:absolute;inset:0;margin:auto;width:min(68%,400px);height:auto;
  opacity:1;transition:opacity .6s ease;pointer-events:none;
}
.demo3d-stage.is-live .demo3d-poster{opacity:0}
.demo3d-hint{
  position:absolute;left:50%;bottom:14px;transform:translateX(-50%);z-index:2;
  font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted-dark);opacity:0;transition:opacity .6s ease;pointer-events:none;white-space:nowrap;
}
.demo3d-stage.is-live .demo3d-hint{opacity:.8}
.demo3d-controls{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:18px}
.demo3d-btn{
  font-family:var(--mono);font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;
  padding:10px 16px;background:var(--gunmetal);color:var(--paper);
  border:1px solid var(--iron-line);cursor:pointer;transition:border-color .15s,background .15s,color .15s;
}
.demo3d-btn:hover{border-color:var(--torch)}
.demo3d-btn.is-active{background:var(--torch);color:var(--gunmetal);border-color:var(--torch)}
.demo3d-fine{
  font-family:var(--mono);font-size:.72rem;letter-spacing:.03em;
  color:var(--muted-light);text-align:center;margin-top:14px;
}
@media (max-width:640px){
  .demo3d-stage{height:min(78vw,420px)}
  .demo3d-btn{padding:9px 12px;font-size:.68rem}
}