:root {
    --bg:        #050912;   /* deep navy-black base */
    --bg-2:      #0A1426;   /* panel */
    --bg-3:      #0E1C36;   /* raised panel */
    --line:      #1A2C49;   /* hairline */
    --ink:       #EAF1FB;   /* primary text */
    --ink-soft:  #9DB2CE;   /* secondary text */
    --ink-dim:   #5B718F;   /* tertiary */

    /* Brand navy (#0A1F44) family — navy for solids, luminous blue for accents on dark */
    --navy:      #0A1F44;   /* original logo navy */
    --navy-mid:  #1E3A6B;   /* mid navy */
    --cyan:      #5B9BE0;   /* luminous brand-blue accent (was cyan) */
    --cyan-deep: #3A6FB0;
    --blue:      #2F5B94;
    --amber:     #FBBF24;   /* signal/alert accent */
    --ascent-red:#ED1E24;   /* Ascent brand red */
    --grid:      rgba(91,155,224,0.06);
  }

  html { scroll-behavior: smooth; }
  body {
    font-family: 'Sora', system-ui, sans-serif;
    background: var(--bg);
    color: var(--ink);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }
  .font-display { font-family: 'Sora', sans-serif; }
  .font-600 { font-weight: 600; }
  .font-700 { font-weight: 700; }
  .font-body { font-family: 'Archivo', sans-serif; }
  .font-mono { font-family: 'JetBrains Mono', monospace; }

  /* ---- Global grid atmosphere ---- */
  .grid-overlay {
    position: fixed; inset: 0; z-index: 0; pointer-events: none;
    background-image:
      linear-gradient(var(--grid) 1px, transparent 1px),
      linear-gradient(90deg, var(--grid) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 120% 90% at 50% 0%, #000 35%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse 120% 90% at 50% 0%, #000 35%, transparent 80%);
  }
  .noise {
    position: fixed; inset: 0; z-index: 1; pointer-events: none; opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  }

  /* ---- Nav ---- */
  .nav-bar {
    backdrop-filter: blur(20px) saturate(140%);
    background: rgba(6,11,22,0.55);
    border-bottom: 1px solid transparent;
    transition: background .3s ease, border-color .3s ease;
  }
  .nav-bar.scrolled {
    background: rgba(6,11,22,0.85);
    border-bottom: 1px solid var(--line);
  }

  /* ---- Buttons ---- */
  .btn-primary {
    position: relative;
    background: linear-gradient(135deg, var(--cyan), var(--navy));
    color: #FFFFFF;
    font-weight: 600;
    box-shadow: 0 0 0 1px rgba(91,155,224,.4), 0 8px 30px -8px rgba(91,155,224,.5);
    transition: transform .25s cubic-bezier(.2,.8,.2,1), box-shadow .25s ease;
  }
  .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 0 1px rgba(91,155,224,.7), 0 14px 40px -8px rgba(91,155,224,.7); }
  .btn-outline {
    border: 1px solid var(--line);
    color: var(--ink);
    background: rgba(255,255,255,0.015);
    transition: border-color .25s ease, background .25s ease, transform .25s ease;
  }
  .btn-outline:hover { border-color: var(--cyan); background: rgba(91,155,224,0.06); transform: translateY(-2px); }

  /* ---- Lang switch ---- */
  .lang-btn {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px; letter-spacing: .15em;
    padding: 4px 9px; border-radius: 6px;
    color: var(--ink-dim); transition: all .2s ease; cursor: pointer;
  }
  .lang-btn:hover { color: var(--ink-soft); }
  .lang-btn.active { color: #FFFFFF; background: var(--cyan); font-weight:600; }

  #progress {
    position: fixed; top: 0; left: 0; height: 2px;
    background: linear-gradient(90deg, var(--cyan), var(--blue));
    width: 0; z-index: 100; box-shadow: 0 0 12px var(--cyan);
  }

  /* ---- Eyebrow / labels ---- */
  .eyebrow {
    font-family: 'JetBrains Mono', monospace;
    font-size: .72rem; letter-spacing: .28em; text-transform: uppercase;
    color: var(--cyan); font-weight: 500;
    display: inline-flex; align-items: center; gap: .6rem;
  }
  .eyebrow::before {
    content: ""; width: 22px; height: 1px; background: var(--cyan); display:inline-block;
    box-shadow: 0 0 8px var(--cyan);
  }
  .eyebrow-red { color: var(--ascent-red); }
  .eyebrow-red::before { background: var(--ascent-red); box-shadow: 0 0 8px rgba(237,30,36,.6); }

  /* ---- Hero canvas ---- */
  #routes { position:absolute; inset:0; width:100%; height:100%; z-index:0; }
  .hero-glow {
    position:absolute; z-index:0; border-radius:50%;
    filter: blur(90px); opacity:.5; pointer-events:none;
  }

  /* ---- Service cards ---- */
  .svc {
    position: relative; overflow: hidden;
    background: linear-gradient(160deg, var(--bg-3) 0%, var(--bg-2) 100%);
    border: 1px solid var(--line);
    transition: transform .35s cubic-bezier(.2,.8,.2,1), border-color .35s ease;
  }
  .svc::before {
    content:""; position:absolute; inset:0;
    background: radial-gradient(420px circle at var(--mx,50%) var(--my,0%), rgba(91,155,224,.10), transparent 45%);
    opacity:0; transition: opacity .35s ease; pointer-events:none;
  }
  .svc:hover { transform: translateY(-6px); border-color: rgba(91,155,224,.45); }
  .svc:hover::before { opacity:1; }
  .svc-index {
    font-family:'JetBrains Mono', monospace; font-size:.7rem; letter-spacing:.2em;
    color: var(--ink-dim);
  }
  .svc-icon {
    width:46px; height:46px; border-radius:10px;
    display:flex; align-items:center; justify-content:center;
    background: rgba(91,155,224,.08); border:1px solid rgba(91,155,224,.22);
    color: var(--cyan);
  }

  /* ---- Stat / value tiles ---- */
  .vtile {
    position:relative; padding:1.6rem 1.4rem;
    border:1px solid var(--line); border-radius:14px;
    background: linear-gradient(160deg, var(--bg-3), var(--bg-2));
    overflow:hidden; transition: border-color .3s ease, transform .3s ease;
  }
  .vtile:hover { border-color: rgba(91,155,224,.4); transform: translateY(-4px); }
  .vtile .num { font-family:'JetBrains Mono', monospace; color: var(--cyan); }
  .vtile::after {
    content:""; position:absolute; left:0; bottom:0; height:2px; width:0;
    background: linear-gradient(90deg, var(--cyan), transparent);
    transition: width .5s ease;
  }
  .vtile:hover::after { width:100%; }

  .panel {
    background: linear-gradient(160deg, var(--bg-3), var(--bg-2));
    border: 1px solid var(--line); border-radius: 16px;
  }

  .divider { width:48px; height:2px; background:var(--cyan); box-shadow:0 0 10px var(--cyan); }

  .reveal { opacity:0; transform: translateY(24px); }

  /* form fields */
  .field {
    width:100%; background: rgba(255,255,255,0.02);
    border:1px solid var(--line); border-radius:10px;
    padding:.7rem .9rem; color:var(--ink); transition: border-color .2s ease, background .2s ease;
  }
  .field:focus { outline:none; border-color:var(--cyan); background: rgba(91,155,224,.04); }
  .field::placeholder { color: var(--ink-dim); }

  .link-cyan { color: var(--cyan); }
  .link-cyan:hover { text-shadow: 0 0 12px rgba(91,155,224,.6); }

  ::selection { background: rgba(91,155,224,.3); color:#fff; }

  /* scanning line accent for section headers */
  .scan { position:relative; }

  /* ===== PRODUCT / HUD COMPONENTS ===== */

  /* status pill (live) */
  .status-pill {
    display:inline-flex; align-items:center; gap:.5rem;
    font-family:'JetBrains Mono', monospace; font-size:11px; letter-spacing:.12em;
    padding:.4rem .8rem; border-radius:999px;
    background: rgba(91,155,224,.07); border:1px solid rgba(91,155,224,.25);
    color: var(--ink-soft); text-transform:uppercase;
  }
  .dot-live {
    width:7px; height:7px; border-radius:50%; background: #2EE6A6;
    box-shadow: 0 0 0 0 rgba(46,230,166,.6); animation: ping 2s infinite;
  }
  @keyframes ping {
    0% { box-shadow: 0 0 0 0 rgba(46,230,166,.55); }
    70% { box-shadow: 0 0 0 7px rgba(46,230,166,0); }
    100% { box-shadow: 0 0 0 0 rgba(46,230,166,0); }
  }

  /* hero live console */
  .console {
    background: linear-gradient(165deg, rgba(14,27,48,.92), rgba(10,19,34,.92));
    border:1px solid var(--line); border-radius:18px;
    box-shadow: 0 40px 80px -30px rgba(0,0,0,.7), inset 0 1px 0 rgba(255,255,255,.04);
    backdrop-filter: blur(8px);
    overflow:hidden;
  }
  .console-head {
    display:flex; align-items:center; justify-content:space-between;
    padding:.8rem 1.1rem; border-bottom:1px solid var(--line);
    background: rgba(255,255,255,.015);
  }
  .console-dots { display:flex; gap:6px; }
  .console-dots i { width:10px; height:10px; border-radius:50%; display:block; }
  .stat-row {
    display:flex; align-items:baseline; justify-content:space-between;
    padding:.85rem 0; border-bottom:1px dashed var(--line);
  }
  .stat-row:last-child { border-bottom:0; }
  .stat-val { font-family:'JetBrains Mono', monospace; font-weight:600; color: var(--ink); }
  .stat-key { font-family:'JetBrains Mono', monospace; font-size:11px; letter-spacing:.1em; color: var(--ink-dim); text-transform:uppercase; }

  /* sparkline bars */
  .spark { display:flex; align-items:flex-end; gap:3px; height:34px; }
  .spark span { display:block; width:5px; border-radius:2px 2px 0 0; background: linear-gradient(180deg, var(--cyan), rgba(91,155,224,.25)); animation: barpulse 2.4s ease-in-out infinite; }
  @keyframes barpulse { 0%,100%{ transform:scaleY(.6);} 50%{ transform:scaleY(1);} }

  /* marquee ticker */
  .ticker-wrap { overflow:hidden; border-top:1px solid var(--line); border-bottom:1px solid var(--line); background: rgba(255,255,255,.012); }
  .ticker { display:flex; gap:3rem; white-space:nowrap; animation: scrollx 32s linear infinite; padding:.85rem 0; }
  .ticker span { font-family:'JetBrains Mono', monospace; font-size:12px; letter-spacing:.1em; color: var(--ink-dim); text-transform:uppercase; display:inline-flex; align-items:center; gap:.6rem; }
  .ticker b { color: var(--cyan); font-weight:500; }
  @keyframes scrollx { from{ transform:translateX(0);} to{ transform:translateX(-50%);} }

  /* section number tag */
  .sec-tag { font-family:'JetBrains Mono', monospace; font-size:11px; letter-spacing:.2em; color: var(--ink-dim); }

  /* svc corner bracket */
  .svc .bracket { position:absolute; width:14px; height:14px; border-color: rgba(91,155,224,.4); opacity:0; transition:opacity .35s ease; }
  .svc:hover .bracket { opacity:1; }
  .bracket.tl { top:14px; left:14px; border-top:1.5px solid; border-left:1.5px solid; }
  .bracket.br { bottom:14px; right:14px; border-bottom:1.5px solid; border-right:1.5px solid; }

  @media (prefers-reduced-motion: reduce) {
    .dot-live, .spark span, .ticker { animation: none !important; }
    #routes { display: none !important; }
    html { scroll-behavior: auto; }
  }

/* ============ MOBILE NAV ============ */
.menu-bar {
  display: block;
  width: 22px; height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
#menu-btn.open .menu-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
#menu-btn.open .menu-bar:nth-child(2) { opacity: 0; transform: scaleX(0); }
#menu-btn.open .menu-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

#mobile-menu {
  position: fixed; top: 4rem; left: 0; right: 0; z-index: 40;
  background: rgba(5,9,18,0.97);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(24px) saturate(140%);
  transform: translateY(-12px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
#mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}
.mobile-nav-link {
  display: block;
  padding: 1rem 0;
  font-size: 1rem; font-weight: 500;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--line);
  transition: color 0.2s ease, padding-left 0.2s ease;
}
.mobile-nav-link:last-of-type { border-bottom: 0; }
.mobile-nav-link:hover { color: var(--ink); padding-left: 4px; }

/* ============ RESPONSIVE EXTRAS ============ */
@media (max-width: 640px) {
  /* reduce hero glows on mobile to avoid paint issues */
  .hero-glow { opacity: 0.25; }
  /* tighter padding on panels inside contact */
  form.panel { padding: 1.75rem; }
  /* stack coverage strip */
  .coverage-strip { flex-direction: column; }
}