/* ============================================================
   BIM Blueprint — site design system
   Blue equity palette, dark technical aesthetic.
   ============================================================ */
:root{
  --bg:        #070C16;
  --bg-2:      #0B1322;
  --bg-3:      #0F1A2E;
  --line:      #1B2840;
  --line-2:    #26344f;

  --blue:      #1E63E9;   /* primary brand blue */
  --blue-lite: #33B4F5;   /* the bright upper-chevron cyan-blue */
  --blue-deep: #123A96;
  --amber:     #F5B544;   /* alert accent — used sparingly */

  --ink:       #EAF1FB;
  --ink-2:     #9DB2D0;
  --ink-3:     #5E739A;

  --maxw: 1180px;
  --radius: 12px;
  --radius-sm: 8px;

  --font-display: "Saira", "Arial Narrow", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-sm{padding:64px 0}

/* ---------- typography ---------- */
h1,h2,h3,h4{font-family:var(--font-display);font-weight:600;line-height:1.08;letter-spacing:-0.01em}
h1{font-size:clamp(2.4rem,5.2vw,4.2rem)}
h2{font-size:clamp(1.9rem,3.4vw,2.8rem)}
h3{font-size:1.35rem}
p{color:var(--ink-2)}
.lead{font-size:1.2rem;color:var(--ink-2);max-width:60ch}
.eyebrow{
  font-family:var(--font-body);
  font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--blue-lite);font-weight:600;
  display:inline-block;margin-bottom:18px;
}
.amber{color:var(--amber)}
.bluelite{color:var(--blue-lite)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(7,12,22,.82);backdrop-filter:blur(14px);
  border-bottom:.5px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:14px}
.brand img{height:42px;width:auto}
.brand .bt{line-height:1}
.brand .bt .name{
  font-family:var(--font-display);font-weight:600;font-size:1.06rem;
  letter-spacing:.34em;color:var(--ink);padding-left:.34em;
}
.brand .bt .sub{
  font-size:.58rem;letter-spacing:.2em;text-transform:uppercase;
  color:var(--ink-3);margin-top:5px;
}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{font-size:.92rem;color:var(--ink-2);transition:color .15s}
.nav-links a:hover,.nav-links a.active{color:var(--ink)}
.nav-cta{
  background:var(--blue);color:#fff;padding:10px 20px;border-radius:var(--radius-sm);
  font-size:.9rem;font-weight:500;transition:background .15s;
}
.nav-cta:hover{background:#1a56cc}
.nav-toggle{display:none;background:none;border:0;color:var(--ink);font-size:1.6rem;cursor:pointer}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:14px 26px;border-radius:var(--radius-sm);
  font-weight:500;font-size:1rem;cursor:pointer;border:1px solid transparent;
  transition:transform .12s, background .15s, border-color .15s;
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:#1a56cc}
.btn-ghost{background:transparent;border-color:var(--line-2);color:var(--ink)}
.btn-ghost:hover{border-color:var(--blue-lite);color:#fff}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:.5px solid var(--line)}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
  min-height:min(78vh,640px);padding:80px 0}
.hero h1{margin-bottom:22px}
.hero .lead{margin-bottom:34px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:42px}
.hero-stats{display:flex;gap:38px;flex-wrap:wrap}
.hero-stats .stat .n{font-family:var(--font-display);font-size:1.7rem;font-weight:600;color:var(--blue-lite)}
.hero-stats .stat .l{font-size:.82rem;color:var(--ink-3);margin-top:2px}
.hero-canvas-wrap{position:relative;height:460px;display:flex;align-items:center;justify-content:center}
.hero-canvas-wrap canvas{width:100%;height:100%;display:block}

/* ---------- tier strip (Capture/Model/Monitor) ---------- */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);border-top:.5px solid var(--line)}
.tier{padding:30px 28px;border-right:.5px solid var(--line)}
.tier:last-child{border-right:0;background:linear-gradient(180deg,rgba(245,181,68,.05),transparent)}
.tier .k{font-size:.74rem;letter-spacing:.18em;text-transform:uppercase;font-weight:600;margin-bottom:8px}
.tier.cap .k{color:var(--blue-lite)} .tier.mod .k{color:var(--blue-lite)} .tier.mon .k{color:var(--amber)}
.tier p{font-size:.95rem}

/* ---------- generic cards / grid ---------- */
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{
  background:var(--bg-2);border:.5px solid var(--line);border-radius:var(--radius);
  padding:30px;transition:border-color .18s, transform .18s;
}
.card:hover{border-color:var(--line-2);transform:translateY(-2px)}
.card h3{margin-bottom:10px;color:var(--ink)}
.card p{font-size:.96rem}
.card .ic{width:40px;height:40px;border-radius:9px;background:rgba(30,99,233,.12);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;color:var(--blue-lite);font-size:1.2rem}

/* ---------- module list (IQ products) ---------- */
.modules{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.mod{background:var(--bg-2);border:.5px solid var(--line);border-radius:var(--radius);padding:24px;
  display:flex;flex-direction:column;gap:8px;transition:border-color .18s}
.mod:hover{border-color:var(--blue)}
.mod .tag{font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--blue-lite);font-weight:600}
.mod h4{font-family:var(--font-display);font-size:1.15rem;color:var(--ink);font-weight:600}
.mod p{font-size:.9rem}

/* ---------- section header ---------- */
.sec-head{max-width:62ch;margin-bottom:48px}
.sec-head h2{margin-bottom:16px}

/* ---------- CTA band ---------- */
.cta-band{background:linear-gradient(135deg,var(--blue-deep),var(--bg-3));border:.5px solid var(--line);
  border-radius:18px;padding:56px;text-align:center}
.cta-band h2{margin-bottom:14px}
.cta-band p{max-width:52ch;margin:0 auto 28px}
.cta-band .hero-cta{justify-content:center}

/* ---------- footer ---------- */
.site-footer{border-top:.5px solid var(--line);background:var(--bg-2);padding:56px 0 36px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:40px}
.foot-grid img{height:40px;margin-bottom:16px}
.foot-grid h5{font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3);margin-bottom:14px;font-weight:600}
.foot-grid a{display:block;color:var(--ink-2);font-size:.94rem;margin-bottom:9px;transition:color .15s}
.foot-grid a:hover{color:var(--ink)}
.foot-bottom{border-top:.5px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;
  flex-wrap:wrap;gap:12px;font-size:.84rem;color:var(--ink-3)}

/* ---------- reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease, transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- page hero (service pages) ---------- */
.phero{position:relative;border-bottom:.5px solid var(--line);overflow:hidden}
.phero-inner{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;padding:72px 0;min-height:520px}
.phero-canvas{position:relative;height:420px}
.phero-canvas canvas{width:100%;height:100%}

/* ---------- responsive ---------- */
@media(max-width:900px){
  .hero-inner,.phero-inner{grid-template-columns:1fr}
  .hero-canvas-wrap{height:340px;order:-1}
  .phero-canvas{height:320px;order:-1}
  .tiers,.grid-3,.modules{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
  .nav-toggle{display:block}
  .nav-links.open{display:flex;position:absolute;top:74px;left:0;right:0;flex-direction:column;
    background:var(--bg-2);padding:20px 24px;gap:18px;border-bottom:.5px solid var(--line)}
  .cta-band{padding:36px 24px}
}

/* ---------- industries chips ---------- */
.ind-grid{display:flex;flex-wrap:wrap;gap:12px}
.ind{background:var(--bg-2);border:.5px solid var(--line);border-radius:999px;
  padding:11px 20px;font-size:.95rem;color:var(--ink-2);font-weight:500;transition:border-color .18s,color .18s}
.ind:hover{border-color:var(--blue);color:var(--ink)}

/* ---------- spec bar ---------- */
.specbar{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  background:var(--bg-2);border:.5px solid var(--line);border-radius:var(--radius);padding:30px 34px}
.spec .n{font-family:var(--font-display);font-size:1.45rem;font-weight:600;color:var(--blue-lite);line-height:1.12}
.spec .l{font-size:.84rem;color:var(--ink-3);margin-top:6px}

/* ---------- FAQ ---------- */
.faq{max-width:840px}
.faq details{border:.5px solid var(--line);border-radius:var(--radius-sm);background:var(--bg-2);margin-bottom:12px;padding:0 24px}
.faq details[open]{border-color:var(--line-2)}
.faq summary{cursor:pointer;list-style:none;padding:20px 0;font-family:var(--font-display);font-weight:600;
  font-size:1.08rem;color:var(--ink);display:flex;justify-content:space-between;align-items:center;gap:18px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--blue-lite);font-size:1.5rem;line-height:1;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{font-size:.97rem;padding:0 0 22px;margin:0}

@media(max-width:900px){
  .specbar{grid-template-columns:repeat(2,1fr)}
}