:root{
    --ink:#13213a;
    --ink-soft:#46546e;
    --ink-faint:#7a869c;
    --line:#e4e8f0;
    --line-soft:#eef1f6;
    --bg:#ffffff;
    --bg-tint:#f5f7fb;
    --navy:#13213a;
    --red:#1f5fd6;
    --red-deep:#163f93;
    --red-soft:#dde8fb;
    --red-tint:#eef3fc;
    --maxw:1200px;
    --grot:"Space Grotesk",sans-serif;
    --sans:"IBM Plex Sans",system-ui,sans-serif;
    --mono:"IBM Plex Mono",monospace;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{font-family:var(--sans);color:var(--ink);background:var(--bg);line-height:1.55;-webkit-font-smoothing:antialiased;font-size:16.5px}
  a{color:inherit;text-decoration:none}
  h1,h2,h3,h4{font-family:var(--grot);font-weight:600;letter-spacing:-0.02em;line-height:1.05;color:var(--ink)}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 30px}
  .mono{font-family:var(--mono)}
  .kicker{font-family:var(--mono);font-size:12px;letter-spacing:0.18em;text-transform:uppercase;color:var(--red);font-weight:500}
  .btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--sans);font-weight:600;font-size:15px;padding:13px 22px;border-radius:6px;cursor:pointer;border:1px solid transparent;transition:.16s}
  .btn-primary{background:var(--red);color:#fff}
  .btn-primary:hover{background:var(--red-deep)}
  .btn-dark{background:var(--navy);color:#fff}
  .btn-dark:hover{background:#1c2f52}
  .btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
  .btn-ghost:hover{border-color:var(--navy)}

  /* NAV */
  header.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
  .nav-in{display:flex;align-items:center;gap:34px;height:66px}
  .logo{display:flex;align-items:center;gap:9px;font-family:var(--grot);font-weight:700;font-size:20px;letter-spacing:-0.03em}
  .logo .mark{width:28px;height:28px;background:var(--red);display:flex;align-items:center;justify-content:center;flex-shrink:0;border-radius:5px}
  .logo .mark svg{width:19px;height:19px}
  .header-logo{display:block;line-height:0;flex-shrink:1}
  .header-wordmark{display:block;width:215px;max-width:100%;height:auto}
  .nav-links{display:flex;gap:28px;margin-left:10px}
  .nav-links a{font-size:14.5px;color:var(--ink-soft);font-weight:500}
  .nav-links a:hover{color:var(--red)}
  .nav-cta{margin-left:auto;display:flex;align-items:center;gap:16px}
  .nav-cta .signin{font-size:14.5px;font-weight:600}

  /* HERO */
  .hero{position:relative;border-bottom:1px solid var(--line);overflow:hidden}
  .hero-grid{display:grid;grid-template-columns:1fr 1fr;min-height:600px}
  .hero-left{padding:74px 56px 74px 0;display:flex;flex-direction:column;justify-content:center}
  .hero-tag{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--red-deep);background:var(--red-tint);border:1px solid var(--red-soft);padding:6px 12px;border-radius:5px;width:max-content;margin-bottom:26px}
  .hero-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--red);animation:blink 1.4s infinite}
  @keyframes blink{0%,100%{opacity:1}50%{opacity:.3}}
  .hero h1{font-size:60px;letter-spacing:-0.035em}
  .hero h1 .u{color:var(--red)}
  .hero .lede{font-size:19px;color:var(--ink-soft);margin-top:24px;max-width:34ch}
  .hero-detect{margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}
  .hero-detect-kicker{font-family:var(--mono);font-size:11px;letter-spacing:.15em;text-transform:uppercase;color:var(--ink-faint);font-weight:600}
  .hero-detect-list{list-style:none;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px;margin-top:18px}
  .hero-detect-list li{display:flex;flex-direction:column;align-items:center;gap:8px;font-size:12px;line-height:1.3;text-align:center;color:var(--ink-soft);font-weight:500}
  .hero-detect-icon{width:42px;height:42px;display:flex;align-items:center;justify-content:center}
  .hero-detect-icon img{display:block;width:42px;height:42px;object-fit:contain}
  .hero-detect-note{font-size:12px;color:var(--ink-faint);margin-top:18px}
  .hero-cta{display:flex;gap:12px;margin-top:34px}
  .hero-spec{display:flex;gap:34px;margin-top:42px;padding-top:28px;border-top:1px solid var(--line)}
  .hero-spec .s .n{font-family:var(--grot);font-size:30px;font-weight:700;color:var(--navy)}
  .hero-spec .s .l{font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-faint);margin-top:2px}
  .hero-right{position:relative;display:flex;align-items:center;justify-content:center;padding:40px;overflow:hidden}
  /* Hero visual: the phone-screenshot slider, on the page background. */
  .shots{position:relative;width:100%;max-width:300px}
  .shots-frame{position:relative;aspect-ratio:942/1940}
  .shot{position:absolute;inset:0;margin:0;opacity:0;transition:opacity .45s ease;pointer-events:none}
  .shot.is-active{opacity:1;pointer-events:auto}
  .shot img{width:100%;height:100%;object-fit:contain;display:block;user-select:none;filter:drop-shadow(0 18px 38px rgba(19,33,58,.22))}
  .shots-ctl{display:none;align-items:center;justify-content:center;gap:12px;margin-top:22px}
  .shots.is-enhanced .shots-ctl{display:flex}
  .shots-nav{width:30px;height:30px;flex-shrink:0;padding:0;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--ink-soft);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:.16s}
  .shots-nav:hover{border-color:var(--red);color:var(--red)}
  .shots-nav:focus-visible,.shots-dot:focus-visible{outline:2px solid var(--red);outline-offset:2px}
  .shots-dots{display:flex;align-items:center;gap:7px}
  .shots-dot{width:7px;height:7px;padding:0;border:0;border-radius:50%;background:var(--line);cursor:pointer;transition:.16s}
  .shots-dot:hover{background:var(--ink-faint)}
  .shots-dot.is-active{background:var(--red);transform:scale(1.25)}
  @media(prefers-reduced-motion:reduce){.shot{transition:none}}

  /* MARQUEE / DETECT BAR */
  .detect{background:var(--bg-tint);border-bottom:1px solid var(--line);overflow:hidden}
  .detect-in{display:flex;align-items:center;height:58px;gap:0}
  .detect .lbl{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint);padding-right:24px;border-right:1px solid var(--line);white-space:nowrap}
  .marq{flex:1;overflow:hidden;mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent)}
  .marq-track{display:flex;gap:34px;width:max-content;animation:scroll 26s linear infinite;padding-left:24px}
  @keyframes scroll{to{transform:translateX(-50%)}}
  .marq-track .m{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:500;color:var(--ink-soft);white-space:nowrap}
  .marq-track .m svg{width:15px;height:15px;color:var(--red)}

  /* SECTION */
  section.block{padding:96px 0}
  .sec-head{max-width:680px}
  .sec-head h2{font-size:44px;margin-top:16px;letter-spacing:-0.03em}
  .sec-head p{font-size:18px;color:var(--ink-soft);margin-top:16px}

  /* STEPS - numbered horizontal */
  .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:54px;border:1px solid var(--line);border-radius:10px;overflow:hidden}
  .step{padding:34px 30px;border-right:1px solid var(--line);position:relative;background:#fff;transition:.18s}
  .step:last-child{border-right:none}
  .step:hover{background:var(--red-tint)}
  .step .num{font-family:var(--mono);font-size:13px;color:var(--red);font-weight:600;letter-spacing:.1em}
  .step h3{font-size:22px;margin:14px 0 9px}
  .step p{font-size:15px;color:var(--ink-soft)}
  .step .si{position:absolute;top:30px;right:28px;width:40px;height:40px;border:1px solid var(--line);border-radius:8px;display:flex;align-items:center;justify-content:center}
  .step .si svg{width:20px;height:20px;color:var(--navy)}

  /* CAPABILITIES - tight list grid */
  .cap-wrap{background:var(--navy);color:#fff}
  .cap-wrap .kicker{color:#9fc0f0}
  .cap-wrap h2{color:#fff}
  .cap-wrap .sec-head p{color:#a3b3d2}
  .cap-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:#22324f;border:1px solid #22324f;border-radius:12px;overflow:hidden;margin-top:50px}
  .cap{background:#0f1c33;padding:22px 24px;display:flex;gap:15px;align-items:flex-start;transition:.16s}
  .cap:hover{background:#16263f}
  .cap .ci{width:58px;height:58px;border-radius:8px;background:rgba(31,95,214,.2);border:1px solid rgba(110,168,255,.35);display:flex;align-items:center;justify-content:center;flex-shrink:0}
  .cap .ci svg{width:19px;height:19px;color:#8db4f7}
  .cap .ci img{width:46px;height:46px;padding:3px;border-radius:50%;background:#fff;object-fit:contain}
  .cap h4{font-size:16px;font-family:var(--grot);color:#fff}
  .cap p{font-size:13.5px;color:#97a8c8;margin-top:3px;line-height:1.45}

  /* SCIENCE split */
  .sci{display:grid;grid-template-columns:.95fr 1.05fr;gap:60px;align-items:center}
  .sci-visual{background:var(--bg-tint);border:1px solid var(--line);border-radius:12px;padding:30px;position:relative}
  .sci-visual .ph-img{aspect-ratio:4/3;border-radius:8px;border:1px solid var(--line);background:repeating-linear-gradient(135deg,#fff,#fff 10px,#f0f3f8 10px,#f0f3f8 20px);display:flex;align-items:center;justify-content:center}
  .ph-tag{font-family:var(--mono);font-size:12px;color:var(--ink-faint);background:#fff;border:1px solid var(--line);padding:7px 12px;border-radius:6px}
  .sci-badges{display:flex;gap:10px;margin-top:18px}
  .sci-badges .bd{flex:1;border:1px solid var(--line);border-radius:8px;padding:12px;text-align:center;background:#fff}
  .sci-badges .bd .n{font-family:var(--grot);font-weight:700;font-size:22px;color:var(--red)}
  .sci-badges .bd .l{font-family:var(--mono);font-size:10.5px;letter-spacing:.05em;text-transform:uppercase;color:var(--ink-faint);margin-top:2px}
  .feat-list{list-style:none;margin-top:28px;display:flex;flex-direction:column;gap:4px}
  .feat-list li{display:flex;gap:16px;align-items:flex-start;padding:18px 0;border-bottom:1px solid var(--line-soft)}
  .feat-list li:last-child{border-bottom:none}
  .feat-list .fn{font-family:var(--mono);font-size:13px;color:var(--red);font-weight:600;padding-top:2px;width:34px;flex-shrink:0}
  .feat-list b{font-family:var(--grot);font-size:18px;display:block;margin-bottom:4px}
  .feat-list span{font-size:15px;color:var(--ink-soft)}

  /* WAITLIST */
  .wl{background:var(--bg-tint);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .wl-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
  .wl-note{font-size:14.5px;color:var(--ink-soft);background:#fff;border:1px solid var(--line);border-left:3px solid var(--red);border-radius:6px;padding:14px 16px;margin-top:20px;line-height:1.5}
  .wl-form{background:#fff;border:1px solid var(--line);border-radius:12px;padding:32px}
  form .row{display:flex;flex-direction:column;gap:6px;margin-bottom:15px}
  form label{font-family:var(--mono);font-size:11.5px;letter-spacing:.05em;text-transform:uppercase;font-weight:500;color:var(--ink-soft)}
  form label .req{color:var(--red)}
  form input,form select{font-family:var(--sans);font-size:15px;padding:12px 13px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--ink);transition:.15s}
  form input:focus,form select:focus{outline:none;border-color:var(--red);box-shadow:0 0 0 3px var(--red-soft)}
  .two{display:grid;grid-template-columns:1fr 1fr;gap:12px}
  .wl-form .btn-primary{width:100%;justify-content:center;margin-top:6px}

  /* FOOTER */
  footer{background:#fff;border-top:1px solid var(--line);padding:60px 0 28px}
  .foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
  footer .logo .footer-mark{width:34px;height:34px;background:transparent;border-radius:0}
  footer .logo .footer-mark img{display:block;width:100%;height:100%;object-fit:contain}
  footer p.desc{font-size:14.5px;color:var(--ink-soft);margin-top:16px;max-width:32ch}
  footer h5{font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:14px;font-weight:500}
  footer ul{list-style:none;display:flex;flex-direction:column;gap:10px}
  footer ul a{font-size:14.5px;color:var(--ink-soft)}
  footer ul a:hover{color:var(--red)}
  .foot-bot{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);margin-top:44px;padding-top:24px;flex-wrap:wrap;gap:14px}
  .foot-bot small{font-size:13px;color:var(--ink-faint)}
  .foot-bot .soc{display:flex;gap:10px}
  .foot-bot .soc a{width:34px;height:34px;border:1px solid var(--line);border-radius:6px;display:flex;align-items:center;justify-content:center}
  .foot-bot .soc a:hover{border-color:var(--red);color:var(--red)}
  .foot-bot .soc svg{width:16px;height:16px}
  .beta{display:inline-flex;align-items:center;gap:7px;font-family:var(--mono);font-size:11px;letter-spacing:.1em;border:1px solid var(--line);color:var(--ink-soft);padding:5px 10px;border-radius:5px}

  @media(max-width:920px){
    .hero-grid{grid-template-columns:1fr}
    .hero-left{padding:60px 0}
    .hero h1{font-size:44px}
    .hero-detect-list{grid-template-columns:repeat(3,minmax(0,1fr))}
    .steps,.cap-grid,.sci,.wl-grid,.foot-grid{grid-template-columns:1fr}
    .nav-links{display:none}
    .shots{max-width:260px}
  }
  @media(max-width:560px){
    .nav-in{gap:10px}
    .nav-cta{gap:10px}
    .nav-cta .signin{white-space:nowrap}
    .header-wordmark{width:180px}
    .hero-detect-list{grid-template-columns:repeat(2,minmax(0,1fr))}
    .hero-detect-icon,.hero-detect-icon img{width:38px;height:38px}
  }
  @media(max-width:420px){
    .header-wordmark{width:145px}
  }