:root{
    --void:#06080D;          /* page black, blue undertone */
    --hull:#0C111A;          /* panel surface */
    --line:rgba(72,224,228,.14);
    --cyan:#48E0E4;          /* cold neon — instrumentation */
    --amber:#FF7A1F;          /* hot neon — orange, thrust / action */
    --ink:#E8EEF4;
    --dim:#8A97A6;
    --display:'Chakra Petch',sans-serif;
    --body:'Archivo',sans-serif;
    --mono:'JetBrains Mono',monospace;
  }
  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    background:var(--void);
    color:var(--ink);
    font-family:var(--body);
    font-size:16px;
    line-height:1.6;
    overflow-x:hidden;
  }
  ::selection{background:var(--amber);color:var(--void)}

  /* ---------- telemetry chrome ---------- */
  .eyebrow{
    font-family:var(--mono);
    font-size:11px;
    letter-spacing:.22em;
    text-transform:uppercase;
    color:var(--cyan);
    display:flex;align-items:center;gap:10px;
  }
  .eyebrow::before{content:"";width:22px;height:1px;background:var(--cyan);opacity:.7}

  /* ---------- nav ---------- */
  nav{
    position:fixed;top:0;left:0;right:0;z-index:50;
    display:flex;justify-content:space-between;align-items:center;
    padding:18px clamp(20px,5vw,56px);
    background:linear-gradient(to bottom, rgba(6,8,13,.92), rgba(6,8,13,0));
    backdrop-filter:blur(2px);
  }
  .wordmark{
    font-family:var(--display);
    font-weight:600;
    font-size:14px;letter-spacing:.28em;
    color:var(--ink);text-decoration:none;
  }
  .wordmark em{font-style:normal;color:var(--amber)}
  nav .navlinks{display:flex;gap:26px}
  nav .navlinks a{
    font-family:var(--mono);font-size:11px;letter-spacing:.14em;
    text-transform:uppercase;color:var(--dim);text-decoration:none;
    transition:color .2s;
  }
  nav .navlinks a:hover,nav .navlinks a:focus-visible{color:var(--cyan)}
  a:focus-visible,button:focus-visible{outline:2px solid var(--amber);outline-offset:3px}
  @media(max-width:640px){nav .navlinks{gap:13px} nav .navlinks a{font-size:9.5px;letter-spacing:.1em}}

  /* ---------- hero / wind tunnel ---------- */
  header{
    position:relative;
    min-height:100svh;
    display:flex;align-items:center;
    padding:0 clamp(20px,6vw,72px);
  }
  #tunnel{position:absolute;inset:0;width:100%;height:100%;display:block}
  .hero-inner{position:relative;z-index:2;max-width:840px}
  .hero-inner .eyebrow{margin-bottom:22px}
  h1{
    font-family:var(--display);
    font-weight:700;
    font-size:clamp(34px,7.4vw,84px);
    letter-spacing:.06em;
    line-height:1.06;
    text-transform:uppercase;
  }
  h1 .drag{color:var(--dim);opacity:.55}
  .hero-sub{
    margin-top:26px;max-width:520px;
    color:var(--dim);font-size:clamp(15px,1.6vw,18px);
  }
  .hero-cta{margin-top:38px;display:flex;gap:16px;flex-wrap:wrap}
  .btn{
    font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
    padding:14px 26px;text-decoration:none;
    border:1px solid var(--cyan);color:var(--cyan);
    position:relative;transition:background .2s,color .2s;
    clip-path:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
  }
  .btn:hover{background:rgba(72,224,228,.1)}
  .btn.hot{border-color:var(--amber);color:var(--amber)}
  .btn.hot:hover{background:var(--amber);color:var(--void)}
  .hero-hud{
    position:absolute;bottom:26px;left:clamp(20px,6vw,72px);right:clamp(20px,6vw,72px);
    display:flex;justify-content:space-between;z-index:2;
    font-family:var(--mono);font-size:10px;letter-spacing:.18em;
    text-transform:uppercase;color:rgba(138,151,166,.7);
  }
  @media(max-width:640px){.hero-hud span:nth-child(2){display:none}}

  /* ---------- sections ---------- */
  section{
    padding:clamp(72px,12vw,140px) clamp(20px,6vw,72px);
    border-top:1px solid var(--line);
    position:relative;
  }
  .section-head{max-width:840px;margin-bottom:clamp(40px,6vw,64px)}
  h2{
    font-family:var(--display);font-weight:600;
    font-size:clamp(22px,3.6vw,40px);
    letter-spacing:.05em;text-transform:uppercase;
    margin-top:18px;line-height:1.2;
  }
  h2 mark{background:none;color:var(--amber)}
  .section-head p{margin-top:18px;color:var(--dim);max-width:560px}

  /* channels grid */
  .grid{
    display:grid;gap:1px;background:var(--line);
    grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
    border:1px solid var(--line);
  }
  .cell{
    background:var(--hull);padding:30px 26px;
    transition:background .25s;
    position:relative;overflow:hidden;
  }
  .cell:hover{background:#101724}
  .cell::after{
    content:"";position:absolute;left:0;top:0;bottom:0;width:2px;
    background:var(--cyan);transform:scaleY(0);transform-origin:top;
    transition:transform .3s;
  }
  .cell:hover::after{transform:scaleY(1)}
  .cell h3{font-family:var(--body);font-weight:600;font-size:16px;letter-spacing:.02em}
  .cell .tag{
    font-family:var(--mono);font-size:10px;letter-spacing:.18em;
    text-transform:uppercase;color:var(--cyan);display:block;margin-bottom:12px;
  }
  .cell p{margin-top:10px;font-size:14px;color:var(--dim)}

  /* portfolio */
  .brandcard{
    border:1px solid var(--line);background:var(--hull);
    padding:clamp(28px,4vw,44px);
    display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;
  }
  .brandcard .id{
    font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--amber);
    text-transform:uppercase;
  }
  .brandcard h3{
    font-family:var(--display);font-weight:600;font-size:clamp(18px,2.6vw,26px);
    letter-spacing:.05em;margin-top:10px;text-transform:uppercase;
  }
  .brandcard p{color:var(--dim);margin-top:10px;max-width:460px;font-size:15px}
  .pulse{
    display:inline-flex;align-items:center;gap:8px;
    font-family:var(--mono);font-size:11px;letter-spacing:.16em;
    text-transform:uppercase;color:var(--cyan);
  }
  .pulse::before{
    content:"";width:7px;height:7px;border-radius:50%;
    background:var(--cyan);box-shadow:0 0 10px var(--cyan);
    animation:pulse 1.6s infinite;
  }
  @keyframes pulse{0%,100%{opacity:1}50%{opacity:.25}}
  .next-brand{
    margin-top:1px;border:1px dashed rgba(72,224,228,.25);
    padding:26px;display:flex;justify-content:space-between;align-items:center;gap:20px;
    font-family:var(--mono);font-size:11px;letter-spacing:.18em;
    text-transform:uppercase;color:var(--dim);flex-wrap:wrap;
  }

  /* how we operate */
  .funnel{
    display:flex;flex-wrap:wrap;gap:8px;align-items:center;
    max-width:840px;margin-bottom:clamp(32px,5vw,48px);
  }
  .fstage{
    font-family:var(--mono);font-size:10px;letter-spacing:.14em;
    text-transform:uppercase;color:var(--cyan);
    border:1px solid var(--line);padding:8px 12px;background:var(--hull);
    position:relative;
  }
  .fstage:not(:last-child)::after{
    content:"\2192";position:absolute;right:-14px;top:50%;transform:translateY(-50%);
    color:var(--dim);opacity:.5;
  }
  .fstage:not(:last-child){margin-right:12px}
  .fstage.deep{color:var(--amber);border-color:var(--amber);box-shadow:0 0 14px rgba(255,122,31,.15)}
  .ops{display:grid;gap:0;max-width:840px}
  .op{
    display:grid;grid-template-columns:56px 1fr;gap:20px;
    padding:26px 0;border-bottom:1px solid var(--line);
  }
  .op:first-child{border-top:1px solid var(--line)}
  .op .k{
    font-family:var(--mono);font-size:11px;color:var(--amber);letter-spacing:.12em;
    padding-top:4px;
  }
  .op h3{font-weight:600;font-size:16px}
  .op p{color:var(--dim);font-size:14px;margin-top:8px;max-width:560px}

  /* contact / footer */
  footer{
    border-top:1px solid var(--line);
    padding:clamp(64px,10vw,110px) clamp(20px,6vw,72px) 40px;
    position:relative;overflow:hidden;
  }
  footer h2{margin-top:16px}
  .foot-pitch{color:var(--dim);max-width:520px;margin-top:18px}
  footer .btn{display:inline-block;margin-top:34px}
  .foot-base{
    margin-top:clamp(60px,8vw,90px);
    display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;
    font-family:var(--mono);font-size:10px;letter-spacing:.16em;
    text-transform:uppercase;color:rgba(138,151,166,.55);
  }
  .foot-link{color:rgba(138,151,166,.75);text-decoration:none}
  .foot-link:hover{color:var(--cyan)}


  @media(prefers-reduced-motion:reduce){
    .pulse::before{animation:none}
    html{scroll-behavior:auto}
  }
  /* multi-page additions */
  nav .navlinks a.active{color:var(--cyan)}
  a.cell{color:inherit;text-decoration:none;display:block}
  a.cell .go{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--amber);display:block;margin-top:14px}
  .page-top{padding-top:clamp(96px,14vw,150px)}
  .site-foot{border-top:1px solid var(--line);padding:26px clamp(20px,6vw,72px)}
  .site-foot .foot-base{margin-top:0}

  /* content-rich page blocks */
  .duo{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
  .duo>div{background:var(--hull);padding:clamp(26px,4vw,40px)}
  .duo h3{font-family:var(--display);font-size:17px;letter-spacing:.04em;text-transform:uppercase;margin-bottom:12px}
  .duo p{color:var(--dim);font-size:14.5px;margin-top:8px}
  .duo .tag{font-family:var(--mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--cyan);display:block;margin-bottom:12px}
  .spec{border:1px solid var(--line);background:var(--hull)}
  .spec-row{display:flex;gap:20px;padding:20px 26px;border-bottom:1px solid var(--line);flex-wrap:wrap}
  .spec-row:last-child{border-bottom:none}
  .spec-row .k{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--amber);min-width:150px;padding-top:3px}
  .spec-row div{flex:1;min-width:240px}
  .spec-row h3{font-family:var(--body);font-weight:600;font-size:15.5px}
  .spec-row p{color:var(--dim);font-size:14px;margin-top:6px;max-width:640px}
  .prose{max-width:680px;color:var(--dim);font-size:15.5px}
  .prose p{margin-top:16px}
  .prose strong{color:var(--ink)}
  details.faq{border:1px solid var(--line);background:var(--hull);margin-top:10px}
  details.faq summary{cursor:pointer;padding:18px 22px;font-weight:600;font-size:15px;list-style:none;display:flex;justify-content:space-between;gap:14px}
  details.faq summary::after{content:"+";font-family:var(--mono);color:var(--cyan)}
  details.faq[open] summary::after{content:"–"}
  details.faq p{padding:0 22px 18px;color:var(--dim);font-size:14.5px;max-width:680px}
  .page-hero{padding:clamp(110px,16vw,170px) clamp(20px,6vw,72px) clamp(30px,5vw,54px)}
  .page-hero .eyebrow{margin-bottom:20px}
  .page-hero h1{font-size:clamp(30px,5.6vw,60px)}
  .page-hero .hero-sub{max-width:620px}
  .cta-band{border-top:1px solid var(--line);padding:clamp(50px,8vw,80px) clamp(20px,6vw,72px);display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
  .cta-band h2{margin-top:0}

/* ================================================================
   SLIPSTREAMS — UX PATCH v2 (append-only)
   P0 tokens · P1 contrast · P2 focus · P3 link affordance
   P4 nav · P5 rhythm & measure · P6 faq · P7 anchors & skip
   P8 overflow-proof grids · P9 mobile ≤640 · P10 print
   ================================================================ */

/* ---------- P0 · tokens ---------- */
:root{
  --sp-1:8px; --sp-2:12px; --sp-3:18px; --sp-4:26px; --sp-5:40px;
  --gutter:clamp(20px,6vw,72px);
  --nav-h:64px;
  --dim-2:rgba(138,151,166,.85);   /* quiet chrome — 5.1:1 on void, AA-safe */
  --fs-card:16px;                   /* card heading size, adopt gradually */
}

/* ---------- P1 · contrast (measured fixes) ---------- */
h1 .drag{opacity:.68}                            /* 2.7:1 -> 3.6:1, passes large-text */
.hero-hud{color:var(--dim-2)}                    /* was rgba(...,.7) = 3.8:1 */
.foot-base{color:var(--dim-2)}                   /* was rgba(...,.55) = 2.7:1 */
.foot-link{color:var(--dim)}                     /* was rgba(...,.75) = 4.2:1 */
.foot-link:hover,.foot-link:focus-visible{color:var(--cyan)}

/* ---------- P2 · focus visibility ---------- */
/* clip-path swallows the default offset outline on .btn — draw it inside */
.btn:focus-visible{
  outline:2px solid var(--amber);
  outline-offset:-6px;
  background:rgba(255,122,31,.08);
}
.btn.hot:focus-visible{background:rgba(255,122,31,.14)}
details.faq summary:focus-visible{outline:2px solid var(--amber);outline-offset:-2px}

/* skip link — first tab stop, hidden until focused */
.skip{
  position:fixed;top:12px;left:12px;z-index:100;
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);background:var(--hull);border:1px solid var(--cyan);
  padding:10px 16px;text-decoration:none;
  transform:translateY(calc(-100% - 16px));
}
.skip:focus{transform:none}

/* ---------- P3 · in-copy link affordance (replaces inline styles) ---------- */
.prose a,.spec-row p a,.duo p a,.op p a,details.faq p a{
  color:var(--cyan);
  text-decoration:underline;
  text-decoration-color:rgba(72,224,228,.35);
  text-underline-offset:3px;
  transition:color .2s,text-decoration-color .2s;
}
.prose a:hover,.spec-row p a:hover,.duo p a:hover,.op p a:hover,details.faq p a:hover{
  text-decoration-color:var(--cyan);
}

/* ---------- P4 · nav: firmer backdrop, prefixed blur ---------- */
nav{
  background:linear-gradient(to bottom, rgba(6,8,13,.94) 55%, rgba(6,8,13,0));
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
}

/* ---------- P5 · rhythm & measure ---------- */
header{min-height:100vh;min-height:100svh}       /* svh fallback */
.spec,.duo,.brandcard,.next-brand{max-width:1080px}
details.faq{max-width:840px}                      /* aligns with .ops / .funnel */
.stack{margin-top:var(--sp-4)}                    /* replaces inline margin-top:26px */
.funnel{row-gap:14px}                             /* wrapped rows no longer collide */
/* verticals: brandcard title promoted to h2 (heading order) — same skin */
.brandcard h2{
  font-family:var(--display);font-weight:600;
  font-size:clamp(18px,2.6vw,26px);
  letter-spacing:.05em;margin-top:10px;text-transform:uppercase;
}
/* funnel as an <ol> (see HTML changes) */
ol.funnel{list-style:none}
ol.funnel .fstage{display:block}

/* ---------- P6 · faq affordance ---------- */
details.faq summary{transition:color .2s,background .2s}
details.faq summary:hover{color:var(--cyan);background:rgba(72,224,228,.04)}
details.faq[open] summary{color:var(--cyan)}

/* ---------- P7 · anchor landing under fixed nav ---------- */
[id]{scroll-margin-top:calc(var(--nav-h) + 28px)}

/* ---------- P8 · overflow-proof auto-fit grids (≤340px) ---------- */
.grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr))}
.duo{grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr))}

/* ---------- P9 · mobile ≤640 ---------- */
@media(max-width:640px){
  :root{--nav-h:118px}

  /* two-row nav on a solid panel: wordmark row + full-width link row.
     Fixes the clipped "Partners" link and restores real tap targets. */
  nav{
    flex-wrap:wrap;row-gap:6px;
    padding:10px 16px 10px;
    background:rgba(6,8,13,.92);
    -webkit-backdrop-filter:blur(8px);
    backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
  }
  nav .navlinks{width:100%;justify-content:space-between;gap:6px}
  nav .navlinks a{font-size:10px;letter-spacing:.08em;padding:6px 4px}

  header{padding-top:118px}
  .page-hero{padding-top:150px}

  /* funnel -> vertical rail with down-arrows in the gaps */
  .funnel{flex-direction:column;align-items:stretch;gap:20px;row-gap:20px}
  .fstage{padding:11px 14px}
  .fstage:not(:last-child){margin-right:0}
  .fstage:not(:last-child)::after{
    content:"\2193";
    right:auto;left:15px;top:auto;bottom:-18px;
    transform:none;line-height:1;
  }

  /* spec rows: key becomes a label line above its content */
  .spec-row{padding:18px;gap:6px 12px}
  .spec-row .k{min-width:0;flex-basis:100%;padding-top:0}
  .spec-row div{min-width:0}

  .op{grid-template-columns:44px 1fr;gap:14px;padding:22px 0}
  .brandcard{padding:24px 18px}
  .cta-band{flex-direction:column;align-items:flex-start;gap:18px}
  .hero-hud{letter-spacing:.12em}
}

/* ---------- P10 · print (marketing pages) ---------- */
@media print{
  @page{margin:18mm}
  body{background:#fff;color:#111}
  nav,#tunnel,.hero-hud,.cta-band,.skip,.pulse::before{display:none}
  header{min-height:auto;padding-top:24pt}
  section{border-top-color:#ccc;padding:20pt 0}
  h1,h2,h3,strong,h2 mark{color:#000}
  h1 .drag{color:#555;opacity:1}
  .section-head p,.prose,.prose p,.spec-row p,.duo p,.op p,details.faq p,
  .hero-sub,.brandcard p{color:#333}
  .spec,.duo,.brandcard,.next-brand,details.faq{background:#fff;border-color:#bbb;max-width:100%}
  .duo>div,.fstage{background:#fff}
  .eyebrow,.tag,.k,.id,.pulse{color:#555}
  .eyebrow::before{background:#555}
  a{color:#000}
  details.faq{break-inside:avoid}
  h2{break-after:avoid}
}

/* ---------- signature touches T1-T4 ---------- */
@media (prefers-reduced-motion: no-preference){
  section::before{
    content:"";position:absolute;top:-1px;left:0;height:1px;width:160px;
    background:linear-gradient(90deg,transparent,rgba(72,224,228,.7) 50%,transparent);
    animation:dataline 9s linear infinite;
    animation-delay:calc(var(--lane,0) * -3s);   /* desynchronize stacked sections */
    pointer-events:none;
  }
  section:nth-of-type(2)::before{--lane:1}
  section:nth-of-type(3)::before{--lane:2}
  @keyframes dataline{
    from{transform:translateX(-160px)}
    to{transform:translateX(100vw)}
  }
}

.spec,.duo,.brandcard{position:relative}
.spec::before,.duo::before,.brandcard::before{
  content:"";position:absolute;top:-1px;left:-1px;width:12px;height:12px;
  border-top:1px solid rgba(72,224,228,.55);
  border-left:1px solid rgba(72,224,228,.55);
  pointer-events:none;
}
.spec::after,.duo::after,.brandcard::after{
  content:"";position:absolute;bottom:-1px;right:-1px;width:12px;height:12px;
  border-bottom:1px solid rgba(72,224,228,.55);
  border-right:1px solid rgba(72,224,228,.55);
  pointer-events:none;
}
.hud-tag{
  position:absolute;top:-8px;right:14px;
  font-family:var(--mono);font-size:9px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--cyan);background:var(--void);padding:0 8px;
  pointer-events:none;
}

.cta-band{
  background-image:
    repeating-linear-gradient(0deg, rgba(72,224,228,.035) 0 1px, transparent 1px 44px),
    repeating-linear-gradient(90deg, rgba(72,224,228,.035) 0 1px, transparent 1px 44px);
}

nav .navlinks a{position:relative}
nav .navlinks a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;
  background:var(--cyan);
  box-shadow:0 0 8px rgba(72,224,228,.6);
}

/* hero/page-hero subhead links + global visited safety */
.hero-sub a{color:var(--ink);text-decoration:underline;text-decoration-color:rgba(72,224,228,.4);text-underline-offset:3px}
.hero-sub a:hover{color:var(--cyan);text-decoration-color:var(--cyan)}
.prose a:visited,.spec-row p a:visited,.duo p a:visited,.op p a:visited,details.faq p a:visited,.hero-sub a:visited{color:inherit}
main a:not([class]){color:var(--cyan)}
main a:not([class]):visited{color:var(--cyan)}

/* ---------- contact form ---------- */
.inquiry{max-width:720px;border:1px solid var(--line);background:var(--hull);padding:clamp(24px,4vw,40px);position:relative}
.inquiry .hp{position:absolute;left:-9999px;top:-9999px}
.inquiry label{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);margin-bottom:18px}
.inquiry .req{color:var(--amber)}
.inquiry .opt{color:rgba(138,151,166,.6);text-transform:none;letter-spacing:.04em}
.inquiry input,.inquiry select,.inquiry textarea{
  display:block;width:100%;margin-top:8px;
  background:var(--void);border:1px solid var(--line);color:var(--ink);
  font-family:var(--body);font-size:15px;padding:12px 14px;border-radius:0;
}
.inquiry input:focus,.inquiry select:focus,.inquiry textarea:focus{outline:2px solid var(--cyan);outline-offset:-1px;border-color:var(--cyan)}
.inquiry textarea{resize:vertical}
.inquiry .frow{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:0 18px}
.inquiry .hero-cta{margin-top:8px}
.inquiry .btn{border:1px solid var(--amber);background:none;cursor:pointer;font-size:12px}
.inquiry .fine{margin-top:16px;font-size:12.5px;color:var(--dim);font-family:var(--body);text-transform:none;letter-spacing:0}
.form-err{max-width:720px;border:1px solid var(--amber);background:rgba(255,122,31,.06);padding:16px 20px;margin-bottom:22px}
.form-err p{color:var(--ink);font-size:14.5px}