/* V26 Engineering Product Intelligence Upgrade */
.engineering-v26{background:#081322;color:#eaf6ff;padding:64px 0;border-top:1px solid rgba(255,255,255,.08)}
.engineering-v26 .section-head{display:flex;justify-content:space-between;gap:24px;align-items:flex-end;margin-bottom:28px}.engineering-v26 .section-head p{max-width:760px;color:#bdd2e7;line-height:1.7}.engineering-v26 .eyebrow{color:#4edfff;text-transform:uppercase;letter-spacing:.12em;font-weight:800;font-size:.78rem}.engineering-v26 h2{font-size:clamp(28px,4vw,44px);margin:.35rem 0 0}.engineering-v26 h3{color:#fff;margin:0 0 12px;font-size:22px}.engineering-v26-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.engineering-card{background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.04));border:1px solid rgba(120,180,220,.24);border-radius:22px;padding:24px;box-shadow:0 14px 40px rgba(0,0,0,.18)}.engineering-card p,.engineering-card li{color:#bdd2e7;line-height:1.65}.engineering-list{margin:0;padding-left:20px}.spec-grid-v26{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:18px}.spec-chip-v26{background:rgba(78,223,255,.08);border:1px solid rgba(78,223,255,.22);border-radius:16px;padding:16px}.spec-chip-v26 strong{display:block;color:#7fe8ff;font-size:13px;text-transform:uppercase;letter-spacing:.08em}.spec-chip-v26 span{display:block;margin-top:6px;color:#fff;font-size:18px;font-weight:700}.curve-grid-v26{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:18px}.curve-card-v26{background:#101c2b;border:1px solid rgba(255,255,255,.1);border-radius:18px;padding:18px}.curve-card-v26 svg{width:100%;height:145px;display:block}.curve-card-v26 .axis{stroke:rgba(255,255,255,.32);stroke-width:1}.curve-card-v26 .gridline{stroke:rgba(255,255,255,.10);stroke-width:1}.curve-card-v26 .curve{fill:none;stroke:#4edfff;stroke-width:3;stroke-linecap:round}.curve-card-v26 .curve2{fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round;opacity:.75}.curve-card-v26 p{margin:.5rem 0 0;color:#a8bfd6;font-size:14px}.app-tags-v26{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}.app-tags-v26 span{border:1px solid rgba(78,223,255,.28);background:rgba(78,223,255,.08);color:#eafcff;border-radius:999px;padding:9px 13px;font-weight:700;font-size:14px}.faq-v26 details{background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:16px 18px;margin:10px 0}.faq-v26 summary{cursor:pointer;color:#fff;font-weight:800}.faq-v26 p{margin:10px 0 0}.download-v26{display:flex;flex-wrap:wrap;gap:12px;margin-top:16px}.download-v26 a{display:inline-flex;align-items:center;gap:8px;padding:12px 16px;border-radius:999px;background:#4edfff;color:#05101d;text-decoration:none;font-weight:900}.download-v26 a.secondary{background:transparent;color:#7fe8ff;border:1px solid rgba(78,223,255,.35)}.trust-strip-v26{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:22px}.trust-strip-v26 div{background:rgba(255,255,255,.06);border-radius:16px;padding:16px;border:1px solid rgba(255,255,255,.1)}.trust-strip-v26 strong{color:#fff;display:block}.trust-strip-v26 span{color:#acc3d9;font-size:14px}@media(max-width:900px){.engineering-v26-grid,.curve-grid-v26,.trust-strip-v26{grid-template-columns:1fr}.spec-grid-v26{grid-template-columns:repeat(2,1fr)}.engineering-v26 .section-head{display:block}}
/* === Mobile nav: ULTRA-COMPACT v6 (LOCKED, all CSS files) === */
.menu-toggle, .mobile-menu-toggle{display:none !important;visibility:hidden !important;width:0 !important;height:0 !important;overflow:hidden !important;position:absolute !important;left:-9999px !important}
@media (max-width:900px){
  html body .header{padding:8px 4vw !important;gap:6px !important}
  html body .logo strong{font-size:18px !important;line-height:1.1}
  html body .logo span{font-size:9px !important;letter-spacing:.14em !important;line-height:1.2;margin-top:2px}
  html body .nav{
    display:flex !important;
    flex-direction:row !important;
    flex-wrap:wrap !important;
    width:100% !important;
    max-width:100% !important;
    overflow:visible !important;
    gap:4px 14px !important;
    padding:4px 0 2px !important;
    margin-top:4px !important;
    font-size:12px !important;
    align-items:center !important;
  }
  html body .nav a[href*="/series/"]{display:none !important;visibility:hidden !important;width:0 !important;height:0 !important;overflow:hidden !important}
  html body .nav a{padding:2px 0 !important;font-size:12px !important;white-space:nowrap !important}
  html body .nav .cta{padding:4px 10px !important;font-size:12px !important;border-radius:8px !important}
  html body .wa-float{padding:8px 12px !important;font-size:13px !important;right:12px !important;bottom:12px !important}
}