:root {
    --bg: #0A0F1C; --bg-2: #0F1626; --panel: #141D31;
    --line: rgba(255,255,255,.08); --line-strong: rgba(255,255,255,.14);
    --text: #EAEEF7; --muted: #93A0B8;
    --signal: #FFB020; --edge: #35D0C6; --emerald: #2FBE7E;
    --light: #EDF1F6; --light-ink: #0C1424; --light-muted: #55627A;
    --display: "Space Grotesk", system-ui, sans-serif;
    --body: "IBM Plex Sans", system-ui, sans-serif;
    --mono: "IBM Plex Mono", ui-monospace, monospace;
    --maxw: 1180px; --r: 14px;
  }
  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body { margin:0; background:var(--bg); color:var(--text); font-family:var(--body); line-height:1.6; -webkit-font-smoothing:antialiased; overflow-x:hidden; }
  a { color:inherit; text-decoration:none; }
  img, svg { display:block; max-width:100%; }
  .wrap { width:100%; max-width:var(--maxw); margin:0 auto; padding:0 24px; }

  .eyebrow { font-family:var(--mono); font-size:12px; letter-spacing:.18em; text-transform:uppercase; color:var(--edge); display:inline-flex; align-items:center; gap:10px; margin:0 0 18px; }
  .eyebrow::before { content:""; width:26px; height:1px; background:var(--edge); opacity:.7; }
  h1,h2,h3 { font-family:var(--display); font-weight:600; letter-spacing:-.02em; line-height:1.08; margin:0; }

  .btn { display:inline-flex; align-items:center; gap:10px; font-family:var(--mono); font-size:14px; letter-spacing:.02em; padding:13px 22px; border-radius:100px; border:1px solid transparent; cursor:pointer; transition:transform .18s ease, background .18s ease, border-color .18s ease, color .18s ease; }
  .btn-primary { background:var(--signal); color:#1A1102; font-weight:500; }
  .btn-primary:hover { transform:translateY(-2px); background:#ffbe3f; }
  .btn-ghost { background:transparent; color:var(--text); border-color:var(--line-strong); }
  .btn-ghost:hover { border-color:var(--edge); color:var(--edge); transform:translateY(-2px); }
  .btn .arw { transition:transform .18s ease; }
  .btn:hover .arw { transform:translateX(3px); }

  header { position:sticky; top:0; z-index:50; backdrop-filter:blur(12px); background:rgba(10,15,28,.72); border-bottom:1px solid var(--line); }
  .nav { display:flex; align-items:center; justify-content:space-between; height:70px; gap:16px; }
  .brand { display:flex; align-items:center; gap:12px; font-family:var(--display); font-weight:600; font-size:18px; letter-spacing:-.01em; }
  .brand .glyph { width:34px; height:34px; flex:0 0 auto; }
  .brand b { color:var(--signal); font-weight:600; }
  .nav-links { display:flex; gap:30px; font-size:14px; color:var(--muted); }
  .nav-links a { transition:color .15s ease; }
  .nav-links a:hover { color:var(--text); }
  .nav-cta { display:flex; align-items:center; gap:12px; }
  .menu-btn { display:none; background:none; border:0; color:var(--text); cursor:pointer; }

  /* Language switcher */
  .lang { position:relative; }
  .lang-btn { display:flex; align-items:center; gap:8px; background:transparent; border:1px solid var(--line-strong); color:var(--text); font-family:var(--mono); font-size:13px; padding:9px 12px; border-radius:100px; cursor:pointer; transition:border-color .15s ease; }
  .lang-btn:hover { border-color:var(--edge); }
  .lang-btn .chev { transition:transform .18s ease; }
  .lang.open .lang-btn .chev { transform:rotate(180deg); }
  .lang-menu { position:absolute; top:calc(100% + 8px); right:0; min-width:158px; background:var(--panel); border:1px solid var(--line-strong); border-radius:12px; padding:6px; list-style:none; margin:0; opacity:0; visibility:hidden; transform:translateY(-6px); transition:opacity .18s ease, transform .18s ease, visibility .18s ease; z-index:60; box-shadow:0 20px 50px -20px rgba(0,0,0,.7); }
  .lang.open .lang-menu { opacity:1; visibility:visible; transform:none; }
  .lang-menu li { font-family:var(--body); font-size:14px; padding:9px 12px; border-radius:8px; cursor:pointer; color:var(--muted); display:flex; align-items:center; justify-content:space-between; }
  .lang-menu li:hover { background:rgba(255,255,255,.05); color:var(--text); }
  .lang-menu li[aria-selected="true"] { color:var(--signal); }
  .lang-menu li[aria-selected="true"]::after { content:"✓"; font-size:12px; }

  .hero { position:relative; padding:92px 0 72px; overflow:hidden; }
  .hero::before { content:""; position:absolute; inset:0; background:radial-gradient(720px 420px at 78% 30%, rgba(53,208,198,.10), transparent 60%), radial-gradient(560px 380px at 12% 82%, rgba(255,176,32,.08), transparent 62%); pointer-events:none; }
  .hero-grid { position:relative; display:grid; grid-template-columns:1.05fr 0.95fr; gap:56px; align-items:center; }
  .hero h1 { font-size:clamp(40px,5.6vw,68px); }
  .hero h1 .grad { background:linear-gradient(100deg, var(--signal), #ffd27a); -webkit-background-clip:text; background-clip:text; color:transparent; }
  .hero p.lead { font-size:18px; color:var(--muted); max-width:34ch; margin:22px 0 32px; }
  .hero-cta { display:flex; gap:14px; flex-wrap:wrap; }
  .hero-stats { display:flex; gap:34px; margin-top:44px; padding-top:26px; border-top:1px solid var(--line); }
  .stat .n { font-family:var(--display); font-size:30px; font-weight:600; letter-spacing:-.02em; }
  .stat .n small { color:var(--signal); }
  .stat .l { font-family:var(--mono); font-size:11px; letter-spacing:.08em; text-transform:uppercase; color:var(--muted); }

  .viz { position:relative; border:1px solid var(--line); border-radius:20px; padding:26px; background:linear-gradient(180deg, rgba(20,29,49,.9), rgba(12,18,32,.9)); box-shadow:0 30px 80px -40px rgba(0,0,0,.8); }
  .viz .scope-top { display:flex; align-items:center; justify-content:space-between; margin-bottom:14px; font-family:var(--mono); font-size:11px; color:var(--muted); letter-spacing:.06em; }
  .net-stage { position:relative; width:100%; aspect-ratio:420/250; cursor:crosshair; }
  .net-stage canvas { position:absolute; inset:0; width:100%; height:100%; display:block; }
  .net-readout { display:flex; align-items:center; justify-content:flex-end; gap:7px; margin:2px 2px 8px; font-family:var(--mono); font-size:10.5px; letter-spacing:.04em; color:#7FB3FF; text-transform:uppercase; pointer-events:none; opacity:.9; }
  .net-readout b { color:#CFE4FF; font-weight:500; }
  .net-readout #predConf { color:#4DA3FF; min-width:34px; text-align:right; }
  .net-labels { display:flex; justify-content:space-between; margin-top:6px; padding:0 2px; font-family:var(--mono); font-size:10px; letter-spacing:.06em; color:#6C7A93; }
  .viz .scope-status { display:flex; align-items:center; gap:7px; font-family:var(--mono); font-size:11px; color:var(--edge); letter-spacing:.08em; text-transform:uppercase; }
  .viz .live-dot { width:7px; height:7px; border-radius:50%; background:var(--edge); animation:livepulse 2s ease-out infinite; }
  @keyframes livepulse { 0%{ box-shadow:0 0 0 0 rgba(53,208,198,.55);} 70%{ box-shadow:0 0 0 7px rgba(53,208,198,0);} 100%{ box-shadow:0 0 0 0 rgba(53,208,198,0);} }

  section { position:relative; }
  .band { padding:88px 0; }
  .band-line { border-top:1px solid var(--line); }
  .head-2 { max-width:620px; margin-bottom:52px; }
  .head-2 h2 { font-size:clamp(28px,3.6vw,42px); }
  .head-2 p { color:var(--muted); font-size:17px; margin:16px 0 0; }

  .sectors { display:flex; flex-wrap:wrap; gap:14px 40px; align-items:center; font-family:var(--mono); font-size:13px; color:var(--muted); letter-spacing:.04em; }
  .sectors .lab { color:var(--edge); }

  .services { display:grid; grid-template-columns:repeat(2,1fr); gap:20px; }
  .card { position:relative; border:1px solid var(--line); border-radius:var(--r); background:var(--panel); padding:30px; overflow:hidden; transition:border-color .2s ease, transform .2s ease; }
  .card:hover { border-color:var(--line-strong); transform:translateY(-3px); }
  .card::after { content:""; position:absolute; left:0; top:0; height:3px; width:46px; background:var(--signal); border-radius:0 3px 3px 0; transition:width .25s ease; }
  .card:hover::after { width:84px; }
  .card .ic { width:46px; height:46px; margin-bottom:20px; color:var(--edge); }
  .card h3 { font-size:21px; margin-bottom:10px; }
  .card p { color:var(--muted); font-size:15px; margin:0; }
  .card ul { list-style:none; padding:0; margin:16px 0 0; display:flex; flex-wrap:wrap; gap:8px; }
  .card li { font-family:var(--mono); font-size:11px; color:var(--muted); border:1px solid var(--line); padding:4px 10px; border-radius:100px; }

  .steps { display:grid; grid-template-columns:repeat(4,1fr); gap:8px; }
  .step { padding:28px 22px 30px; border-left:1px solid var(--line); position:relative; }
  .step:first-child { border-left:0; padding-left:4px; }
  .step .num { font-family:var(--mono); font-size:13px; color:var(--signal); letter-spacing:.1em; }
  .step h3 { font-size:19px; margin:14px 0 8px; }
  .step p { color:var(--muted); font-size:14px; margin:0; }
  .step .pip { position:absolute; left:-5px; top:32px; width:9px; height:9px; border-radius:50%; background:var(--bg); border:2px solid var(--edge); }
  .step:first-child .pip { left:0; }

  .cap-grid { display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
  .cap-list { display:grid; gap:4px; }
  .cap-item { display:flex; gap:16px; padding:18px 0; border-bottom:1px solid var(--line); }
  .cap-item:last-child { border-bottom:0; }
  .cap-item .k { font-family:var(--mono); font-size:12px; color:var(--edge); flex:0 0 96px; padding-top:3px; letter-spacing:.04em; }
  .cap-item .v h3 { font-size:17px; margin-bottom:4px; }
  .cap-item .v p { color:var(--muted); font-size:14px; margin:0; }

  .metrics { background:var(--bg-2); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
  .metrics-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:30px; }
  .metric .n { font-family:var(--display); font-size:clamp(34px,4.4vw,52px); font-weight:600; letter-spacing:-.03em; }
  .metric .n small { color:var(--edge); font-size:.55em; vertical-align:super; }
  .metric .l { font-family:var(--mono); font-size:12px; color:var(--muted); text-transform:uppercase; letter-spacing:.06em; margin-top:6px; }

  .light-sec { background:var(--light); color:var(--light-ink); }
  .light-sec .eyebrow { color:#0E9E71; }
  .light-sec .eyebrow::before { background:#0E9E71; }
  .about-grid { display:grid; grid-template-columns:1fr 0.85fr; gap:60px; align-items:center; }
  .light-sec h2 { font-size:clamp(28px,3.6vw,42px); color:var(--light-ink); }
  .light-sec p { color:var(--light-muted); font-size:17px; }
  .ie-card { border:1px solid rgba(12,20,36,.1); border-radius:var(--r); background:#fff; padding:30px; box-shadow:0 24px 60px -34px rgba(12,20,36,.25); }
  .ie-card .flag { display:flex; height:8px; border-radius:4px; overflow:hidden; width:64px; margin-bottom:18px; }
  .ie-card .flag i { flex:1; display:block; }
  .ie-card .flag i:nth-child(1){ background:#169B62; } .ie-card .flag i:nth-child(2){ background:#fff; } .ie-card .flag i:nth-child(3){ background:#FF883E; }
  .ie-row { display:flex; justify-content:space-between; padding:12px 0; border-bottom:1px solid rgba(12,20,36,.08); font-size:14px; }
  .ie-row:last-child { border-bottom:0; }
  .ie-row span:first-child { font-family:var(--mono); color:var(--light-muted); font-size:12px; letter-spacing:.04em; }
  .ie-row span:last-child { font-weight:600; }

  .cta-sec { position:relative; overflow:hidden; }
  .cta-sec::before { content:""; position:absolute; inset:0; background:radial-gradient(700px 420px at 50% 0%, rgba(255,176,32,.10), transparent 60%); pointer-events:none; }
  .cta-box { position:relative; text-align:center; border:1px solid var(--line); border-radius:22px; padding:66px 32px; background:linear-gradient(180deg, var(--panel), rgba(15,22,38,.6)); }
  .cta-box h2 { font-size:clamp(30px,4.4vw,50px); max-width:16ch; margin:0 auto 18px; }
  .cta-box p { color:var(--muted); font-size:18px; max-width:48ch; margin:0 auto 34px; }
  .cta-box .hero-cta { justify-content:center; }
  .contact-line { margin-top:28px; font-family:var(--mono); font-size:13px; color:var(--muted); }
  .contact-line a { color:var(--edge); }

  footer { border-top:1px solid var(--line); padding:54px 0 40px; }
  .foot-grid { display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:32px; margin-bottom:40px; }
  .foot-col h4 { font-family:var(--mono); font-size:11px; letter-spacing:.1em; text-transform:uppercase; color:var(--muted); margin:0 0 16px; }
  .foot-col a { display:block; color:var(--muted); font-size:14px; padding:5px 0; transition:color .15s ease; }
  .foot-col a:hover { color:var(--text); }
  .foot-brand p { color:var(--muted); font-size:14px; max-width:34ch; margin:16px 0 0; }
  .foot-bottom { display:flex; justify-content:space-between; align-items:center; padding-top:26px; border-top:1px solid var(--line); font-family:var(--mono); font-size:12px; color:var(--muted); flex-wrap:wrap; gap:12px; }

  .reveal { opacity:0; transform:translateY(22px); transition:opacity .7s ease, transform .7s ease; }
  .reveal.in { opacity:1; transform:none; }

  .menu-btn .ic-close { display:none; }

  @media (max-width:900px){
    .hero-grid, .cap-grid, .about-grid { grid-template-columns:1fr; gap:40px; }
    .viz { order:-1; }
    .services { grid-template-columns:1fr; }
    .steps { grid-template-columns:1fr 1fr; }
    .step { border-left:0; border-top:1px solid var(--line); padding:24px 4px; }
    .step .pip { display:none; }
    .metrics-grid { grid-template-columns:1fr 1fr; gap:26px; }
    .foot-grid { grid-template-columns:1fr 1fr; }
    .menu-btn { display:flex; align-items:center; }
    .hero p.lead { max-width:none; }

    /* Mobile dropdown panel */
    .nav-links {
      position:absolute; top:100%; left:0; right:0;
      flex-direction:column; gap:0; align-items:stretch;
      background:rgba(10,15,28,.97); backdrop-filter:blur(12px);
      border-bottom:1px solid var(--line);
      padding:8px 24px 20px;
      transform:translateY(-8px); opacity:0; visibility:hidden; pointer-events:none;
      transition:opacity .2s ease, transform .2s ease, visibility .2s ease;
    }
    header.nav-open .nav-links { transform:none; opacity:1; visibility:visible; pointer-events:auto; }
    .nav-links a { padding:15px 4px; font-size:16px; color:var(--text); border-bottom:1px solid var(--line); }
    .nav-links a:last-child { border-bottom:0; }
    header.nav-open .menu-btn .ic-open { display:none; }
    header.nav-open .menu-btn .ic-close { display:block; }
  }
  @media (max-width:520px){
    .hero-stats { flex-wrap:wrap; gap:22px; }
    .steps, .metrics-grid, .foot-grid { grid-template-columns:1fr; }
    .band { padding:64px 0; }
    .nav-cta .btn-primary { display:none; }
  }
  @media (prefers-reduced-motion:reduce){
    * { animation:none !important; transition:none !important; scroll-behavior:auto; }
    .reveal { opacity:1; transform:none; }
  }
  :focus-visible { outline:2px solid var(--signal); outline-offset:3px; border-radius:4px; }

/* ---------- Contact form ---------- */
.cform { max-width:560px; margin:34px auto 4px; text-align:left; }
.cform-row { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.cfield { display:block; margin-bottom:16px; }
.cfield > span { display:block; font-family:var(--mono); font-size:11px; letter-spacing:.08em; text-transform:uppercase; color:var(--muted); margin-bottom:8px; }
.cfield input, .cfield textarea { width:100%; background:rgba(10,15,28,.6); border:1px solid var(--line-strong); border-radius:10px; color:var(--text); font-family:var(--body); font-size:15px; padding:12px 14px; transition:border-color .15s ease, box-shadow .15s ease; }
.cfield textarea { resize:vertical; min-height:112px; }
.cfield input:focus, .cfield textarea:focus { outline:none; border-color:var(--edge); box-shadow:0 0 0 3px rgba(53,208,198,.15); }
.cfield input.invalid, .cfield textarea.invalid { border-color:#E5484D; box-shadow:0 0 0 3px rgba(229,72,77,.14); }
.cf-hp { position:absolute !important; left:-9999px; width:1px; height:1px; opacity:0; pointer-events:none; }
.cform-foot { display:flex; align-items:center; gap:16px; flex-wrap:wrap; margin-top:6px; }
.cform-foot button[disabled] { opacity:.6; cursor:default; }
.cf-status { font-family:var(--mono); font-size:13px; }
.cf-status.ok { color:var(--emerald); }
.cf-status.err { color:#E5748A; }
.cf-privacy { font-family:var(--mono); font-size:11px; color:var(--muted); margin:14px 0 0; }
@media (max-width:560px){ .cform-row { grid-template-columns:1fr; } }