:root{
    --ink:#0A0D1C;
    --ink-2:#12162E;
    --ink-3:#1B2046;
    --paper:#F3F5FA;
    --card:#FFFFFF;
    --line:#E3E6F1;
    --cyan:#28E6C6;
    --cyan-dim:#0FA590;
    --indigo:#6C63FF;
    --text:#11142B;
    --muted:#666B8A;
    --muted-dark:#9499C2;
  }
  *{margin:0;padding:0;box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    font-family:'Inter',sans-serif;
    background:var(--paper);
    color:var(--text);
    overflow-x:hidden;
    -webkit-font-smoothing:antialiased;
  }
  ::selection{background:var(--cyan);color:var(--ink);}
  a{text-decoration:none;color:inherit;}
  img,svg{display:block;}
  .mono{font-family:'IBM Plex Mono',monospace;}
  .wrap{max-width:1180px;margin:0 auto;padding:0 32px;}
  h1,h2,h3{font-family:'Fraunces',serif;letter-spacing:-0.01em;}
  .eyebrow{
    font-family:'IBM Plex Mono',monospace;
    font-size:12px;
    letter-spacing:.14em;
    text-transform:uppercase;
    color:var(--cyan-dim);
    font-weight:600;
    display:flex; align-items:center; gap:10px;
    margin-bottom:18px;
  }
  .eyebrow::before{content:'';width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(40,230,198,.18);}
  section.on-dark .eyebrow{color:var(--cyan);}
  .reveal{opacity:0; transform:translateY(26px); transition:opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1);}
  .reveal.in{opacity:1; transform:none;}

  /* ---------- NAV ---------- */
  header{
    position:fixed; top:0; left:0; right:0; z-index:100;
    backdrop-filter:blur(14px);
    background:rgba(10,13,28,.72);
    border-bottom:1px solid rgba(255,255,255,.06);
  }
  nav{
    max-width:1180px; margin:0 auto; padding:18px 32px;
    display:flex; align-items:center; justify-content:space-between;
  }
  .logo{
    font-family:'IBM Plex Mono',monospace; font-weight:600; font-size:15px;
    color:#fff; letter-spacing:.06em; display:flex; align-items:center; gap:8px;
  }
  .logo .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);}
  .navlinks{display:flex; gap:30px; list-style:none;}
  .navlinks a{font-size:13.5px; color:#AEB3D6; transition:color .2s;}
  .navlinks a:hover{color:#fff;}
  .navcta{
    font-family:'IBM Plex Mono',monospace; font-size:12.5px; font-weight:600;
    background:var(--cyan); color:var(--ink); padding:9px 18px; border-radius:30px;
    letter-spacing:.03em;
  }
  .navcta:hover{background:#fff;}
  .navtoggle{display:none;}

  /* ---------- HERO ---------- */
  .hero{
    background:radial-gradient(ellipse 900px 600px at 78% 8%, rgba(108,99,255,.30), transparent 60%),
               radial-gradient(ellipse 700px 500px at 100% 70%, rgba(40,230,198,.14), transparent 60%),
               var(--ink);
    color:#fff; padding:168px 0 110px; position:relative; overflow:hidden;
  }
  .hero::after{
    content:''; position:absolute; inset:0;
    background-image:
      linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
    background-size:48px 48px; mask-image:linear-gradient(to bottom, transparent, rgba(0,0,0,.6) 30%, transparent 85%);
    pointer-events:none;
  }
  .hero-grid{display:grid; grid-template-columns:1.15fr 0.85fr; gap:56px; align-items:center; position:relative; z-index:2;}
  .hero h1{font-size:53px; line-height:1.07; font-weight:700; max-width:620px;}
  .hero h1 em{font-style:italic; font-weight:500; color:var(--cyan);}
  .hero p.lede{margin-top:24px; font-size:18px; line-height:1.6; color:#C3C7E8; max-width:520px;}
  .hero-ctas{display:flex; gap:14px; margin-top:38px; flex-wrap:wrap;}
  .btn{
    font-family:'Inter',sans-serif; font-weight:600; font-size:14.5px;
    padding:14px 26px; border-radius:8px; display:inline-flex; align-items:center; gap:8px;
    transition:transform .2s, box-shadow .2s, background .2s;
  }
  .btn-primary{background:var(--cyan); color:var(--ink);}
  .btn-primary:hover{transform:translateY(-2px); box-shadow:0 10px 30px rgba(40,230,198,.25);}
  .btn-ghost{border:1px solid rgba(255,255,255,.22); color:#fff;}
  .btn-ghost:hover{border-color:#fff; transform:translateY(-2px);}
  .hero-meta{display:flex; gap:34px; margin-top:54px;}
  .hero-meta .m-num{font-family:'IBM Plex Mono',monospace; font-size:22px; color:var(--cyan); font-weight:600;}
  .hero-meta .m-lbl{font-size:11.5px; color:#8A8FBF; margin-top:4px;}

  /* DXI gauge widget */
  .gauge-card{
    background:linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
    border:1px solid rgba(255,255,255,.10); border-radius:20px; padding:30px;
    backdrop-filter:blur(6px);
  }
  .gauge-top{display:flex; justify-content:space-between; align-items:center; margin-bottom:6px;}
  .gauge-top span{font-family:'IBM Plex Mono',monospace; font-size:11px; color:#8A8FBF; letter-spacing:.08em; text-transform:uppercase;}
  .gauge-live{display:flex; align-items:center; gap:6px; font-size:10.5px; color:var(--cyan); font-family:'IBM Plex Mono',monospace;}
  .gauge-live .pulse{width:6px; height:6px; border-radius:50%; background:var(--cyan); animation:pulse 1.6s infinite;}
  @keyframes pulse{0%{box-shadow:0 0 0 0 rgba(40,230,198,.6);}70%{box-shadow:0 0 0 8px rgba(40,230,198,0);}100%{box-shadow:0 0 0 0 rgba(40,230,198,0);}}
  .gauge-wrap{display:flex; align-items:center; justify-content:center; padding:14px 0 6px;}
  .gauge-num{font-family:'Fraunces',serif; font-weight:700; font-size:46px;}
  .gauge-label{text-align:center; font-size:12px; color:#9499C2; margin-top:-4px;}
  .subscores{display:grid; grid-template-columns:1fr 1fr; gap:14px; margin-top:22px;}
  .subscore .sk-top{display:flex; justify-content:space-between; font-size:11.5px; color:#C3C7E8; margin-bottom:6px;}
  .subscore .sk-top b{font-family:'IBM Plex Mono',monospace; color:#fff;}
  .sk-bar{height:5px; border-radius:4px; background:rgba(255,255,255,.10); overflow:hidden;}
  .sk-fill{height:100%; width:0%; border-radius:4px; background:linear-gradient(90deg,var(--indigo),var(--cyan)); transition:width 1.4s cubic-bezier(.2,.8,.2,1);}

  /* ---------- SECTION GENERIC ---------- */
  section{padding:110px 0;}
  section.on-dark{background:var(--ink); color:#fff;}
  .sec-head{max-width:640px; margin-bottom:60px;}
  .sec-head h2{font-size:36px; font-weight:600; line-height:1.18;}
  .sec-head p{margin-top:16px; font-size:16px; color:var(--muted); line-height:1.6;}
  section.on-dark .sec-head p{color:#A6ABCF;}

  /* ---------- PROBLEM ---------- */
  .problem-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:18px;}
  .p-card{
    background:var(--card); border:1px solid var(--line); border-radius:16px; padding:28px 22px;
    transition:transform .25s, box-shadow .25s;
  }
  .p-card:hover{transform:translateY(-5px); box-shadow:0 18px 36px rgba(20,24,60,.08);}
  .p-card .icn{width:38px; height:38px; color:var(--indigo); margin-bottom:22px;}
  .p-card .pnum{font-family:'Fraunces',serif; font-size:34px; font-weight:700;}
  .p-card .plbl{font-weight:600; font-size:14.5px; margin-top:10px;}
  .p-card .psub{font-size:13px; color:var(--muted); margin-top:6px; line-height:1.5;}

  /* ---------- FLOW ---------- */
  .flow-row{display:flex; align-items:stretch; gap:0; margin-top:10px;}
  .flow-step{flex:1; background:var(--card); border:1px solid var(--line); border-radius:16px; padding:30px 26px; position:relative;}
  .flow-step.final{background:var(--ink); color:#fff; border-color:var(--ink);}
  .flow-step .fstep-icn{width:34px;height:34px;color:var(--indigo); margin-bottom:18px;}
  .flow-step.final .fstep-icn{color:var(--cyan);}
  .flow-step h4{font-size:17px; font-weight:700; font-family:'Inter',sans-serif;}
  .flow-step p{font-size:13.5px; color:var(--muted); margin-top:8px; line-height:1.5;}
  .flow-step.final p{color:#C3C7E8;}
  .flow-arrow{width:54px; display:flex; align-items:center; justify-content:center; flex-shrink:0;}
  .flow-arrow svg{width:30px; color:#C7CBE4;}
  .flow-banner{
    margin-top:34px; display:flex; align-items:center; gap:18px;
    background:linear-gradient(90deg, rgba(108,99,255,.08), rgba(40,230,198,.10));
    border:1px solid rgba(40,230,198,.25); border-radius:14px; padding:20px 26px;
  }
  .flow-banner .fb-num{font-family:'Fraunces',serif; font-weight:700; font-size:30px; color:var(--ink); white-space:nowrap;}
  .flow-banner p{font-size:14px; color:var(--muted);}

  /* ---------- DXI SUBSCORES SECTION ---------- */
  .quote-block{
    border-left:3px solid var(--cyan); padding-left:24px; margin:46px 0 56px; max-width:760px;
  }
  .quote-block p{font-family:'Fraunces',serif; font-style:italic; font-size:24px; font-weight:500; line-height:1.4; color:var(--text);}
  .quote-block span{display:block; margin-top:10px; font-size:12.5px; font-family:'IBM Plex Mono',monospace; color:var(--muted); font-style:normal;}
  .dxi-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:18px;}
  .dxi-card{background:var(--card); border:1px solid var(--line); border-radius:16px; padding:26px 22px;}
  .dxi-card .icn{width:32px;height:32px;color:var(--cyan-dim); margin-bottom:18px;}
  .dxi-card h4{font-size:16px; font-weight:700;}
  .dxi-card p{font-size:13px; color:var(--muted); margin-top:8px; line-height:1.5;}

  /* ---------- INSIGHTS TABS ---------- */
  .insights-shell{display:grid; grid-template-columns:0.85fr 1.15fr; gap:0; border:1px solid var(--line); border-radius:18px; overflow:hidden; background:var(--card);}
  .tabs-col{border-right:1px solid var(--line); padding:10px;}
  .tab-btn{
    width:100%; text-align:left; padding:18px 20px; border-radius:12px; cursor:pointer;
    display:block; background:none; border:none; font-family:'Inter',sans-serif;
  }
  .tab-btn.active{background:var(--ink);}
  .tab-btn .tt{font-size:14.5px; font-weight:700; color:var(--text);}
  .tab-btn.active .tt{color:#fff;}
  .tab-btn .ts{font-size:12.5px; color:var(--muted); margin-top:4px; line-height:1.45;}
  .tab-btn.active .ts{color:#A6ABCF;}
  .tab-panel-col{padding:36px;}
  .chart-box{height:280px; position:relative;}
  .insight-readout{margin-top:18px; display:flex; gap:28px;}
  .ir-item .ir-num{font-family:'IBM Plex Mono',monospace; font-size:20px; font-weight:600; color:var(--ink);}
  .ir-item .ir-lbl{font-size:11.5px; color:var(--muted); margin-top:2px;}

  /* ---------- TECHNOLOGY ---------- */
  .tech-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:20px; margin-bottom:64px;}
  .tech-card{background:var(--ink-2); border:1px solid rgba(255,255,255,.08); border-radius:16px; padding:30px;}
  .tech-card .icn{width:36px;height:36px;color:var(--cyan); margin-bottom:20px;}
  .tech-card h4{font-size:17px; font-weight:700; color:#fff; font-family:'Inter',sans-serif;}
  .tech-card p{font-size:13.5px; color:#A6ABCF; margin-top:10px; line-height:1.55;}
  .patent-pill{
    display:inline-flex; align-items:center; gap:10px; background:rgba(40,230,198,.10);
    border:1px solid rgba(40,230,198,.3); color:var(--cyan); padding:8px 18px; border-radius:30px;
    font-family:'IBM Plex Mono',monospace; font-size:12.5px; font-weight:600; margin-bottom:36px;
  }
  .bench-card{background:var(--ink-2); border:1px solid rgba(255,255,255,.08); border-radius:18px; padding:36px;}
  .bench-card .chart-box{height:340px;}

  /* ---------- AGENTIC ---------- */
  .agent-row{display:grid; grid-template-columns:repeat(3,1fr); gap:24px; position:relative;}
  .agent-card{background:var(--card); border:1px solid var(--line); border-radius:16px; padding:34px 26px; position:relative;}
  .agent-num{font-family:'IBM Plex Mono',monospace; color:var(--cyan-dim); font-size:13px; font-weight:600; letter-spacing:.06em;}
  .agent-card .icn{width:34px;height:34px;color:var(--indigo); margin:18px 0 16px;}
  .agent-card h4{font-size:16.5px; font-weight:700;}
  .agent-card p{font-size:13px; color:var(--muted); margin-top:8px; line-height:1.55;}
  .agent-line{position:absolute; top:52px; left:100%; width:24px; height:1px; background:var(--line); display:none;}

  /* ---------- PROOF ---------- */
  .proof-flex{display:grid; grid-template-columns:1.3fr 1fr; gap:50px;}
  .chip-grid{display:grid; grid-template-columns:1fr 1fr; gap:10px; margin-top:20px;}
  .chip{background:var(--card); border:1px solid var(--line); border-radius:10px; padding:13px 16px; font-size:13px; font-weight:600; text-align:center;}
  .partner-line{margin-top:26px; font-size:13.5px; color:var(--muted); line-height:1.7;}
  .growth-card{background:var(--card); border:1px solid var(--line); border-radius:16px; padding:30px;}
  .growth-card h4{font-size:13px; font-family:'IBM Plex Mono',monospace; color:var(--muted); text-transform:uppercase; letter-spacing:.06em; margin-bottom:22px;}
  .gbar-row{display:flex; align-items:flex-end; gap:14px; height:160px;}
  .gbar{flex:1; display:flex; flex-direction:column; align-items:center; justify-content:flex-end; height:100%;}
  .gbar .gb-fill{width:100%; border-radius:8px 8px 0 0; background:linear-gradient(180deg,var(--indigo),var(--cyan)); height:0%; transition:height 1.2s cubic-bezier(.2,.8,.2,1);}
  .gbar .gb-val{font-family:'IBM Plex Mono',monospace; font-size:13px; font-weight:600; margin-bottom:8px;}
  .gbar .gb-yr{font-size:11.5px; color:var(--muted); margin-top:10px;}

  /* ---------- TEAM ---------- */
  .team-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:18px;}
  .team-card{background:var(--card); border:1px solid var(--line); border-radius:16px; padding:26px 20px; text-align:center;}
  .avatar{width:58px; height:58px; border-radius:50%; background:linear-gradient(135deg,var(--indigo),var(--cyan)); margin:0 auto 16px; display:flex; align-items:center; justify-content:center; font-family:'Fraunces',serif; color:#fff; font-weight:700; font-size:19px;}
  .team-card h4{font-size:14.5px; font-weight:700;}
  .team-card .role{font-size:11.5px; color:var(--cyan-dim); font-weight:700; margin-top:4px; font-family:'IBM Plex Mono',monospace; letter-spacing:.02em;}
  .team-card .cred{font-size:11.5px; color:var(--muted); margin-top:10px; line-height:1.5;}

  /* ---------- FINAL CTA ---------- */
  .final-cta{
    background:radial-gradient(ellipse 800px 500px at 30% 30%, rgba(108,99,255,.25), transparent 60%), var(--ink);
    color:#fff; text-align:center; padding:120px 0;
  }
  .final-cta h2{font-size:42px; max-width:680px; margin:0 auto; font-weight:600; line-height:1.18;}
  .final-cta p{margin-top:18px; color:#A6ABCF; font-size:16px;}
  .final-cta .hero-ctas{justify-content:center; margin-top:34px;}

  footer{background:var(--ink); border-top:1px solid rgba(255,255,255,.08); padding:46px 0 30px;}
  .foot-row{display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:20px;}
  .foot-links{display:flex; gap:24px; list-style:none;}
  .foot-links a{font-size:13px; color:#9499C2;}
  .foot-links a:hover{color:#fff;}
  .foot-copy{font-size:12px; color:#5C619A; margin-top:26px; font-family:'IBM Plex Mono',monospace;}

  @media (max-width: 980px){
    .hero-grid{grid-template-columns:1fr; gap:48px;}
    .hero h1{font-size:40px;}
    .problem-grid{grid-template-columns:repeat(2,1fr);}
    .dxi-grid{grid-template-columns:repeat(2,1fr);}
    .tech-grid{grid-template-columns:1fr;}
    .agent-row{grid-template-columns:1fr;}
    .team-grid{grid-template-columns:repeat(2,1fr);}
    .insights-shell{grid-template-columns:1fr;}
    .tabs-col{border-right:none; border-bottom:1px solid var(--line); display:flex; overflow-x:auto;}
    .tab-btn{width:auto; flex:0 0 auto; white-space:nowrap;}
    .proof-flex{grid-template-columns:1fr;}
    .flow-row{flex-direction:column;}
    .flow-arrow{transform:rotate(90deg); width:100%; height:40px;}
    .navlinks{display:none;}
  }
</style>

/* =========================================================
   ADDED FOR GEO/SEO CONTENT PAGES (topic pages, FAQ, hub)
   Reuses the tokens & components above so every new page
   matches the existing Quantellix.AI visual system.
   ========================================================= */

/* Breadcrumbs — helps users AND gives AI engines/Google an
   explicit page-hierarchy signal (paired with BreadcrumbList
   schema in the <head> of each page). */
.crumbs{
  padding:150px 0 0; font-family:'IBM Plex Mono',monospace; font-size:12.5px;
  color:var(--muted); display:flex; gap:8px; flex-wrap:wrap;
}
.crumbs a{color:var(--cyan-dim);} .crumbs a:hover{text-decoration:underline;}
.crumbs span{color:var(--muted-dark);}

/* Simple content header used on every standalone topic page */
.page-hero{padding:34px 0 56px; border-bottom:1px solid var(--line);}
.page-hero h1{font-size:38px; line-height:1.14; font-weight:700; max-width:760px;}
.page-hero .lede{margin-top:18px; font-size:17px; line-height:1.65; color:var(--muted); max-width:680px;}
.page-hero .tldr{
  margin-top:26px; background:var(--card); border:1px solid var(--line); border-left:4px solid var(--cyan-dim);
  border-radius:10px; padding:18px 22px; max-width:720px; font-size:15px; line-height:1.6;
}
.page-hero .tldr b{color:var(--text);}

/* Article body: kept to <=72ch for readability, generous
   heading rhythm, and semantic lists (GEO reward: extractable,
   list-based, stat-dense content is cited more often). */
.article{padding:52px 0 70px;}
.article-grid{display:grid; grid-template-columns:1fr 280px; gap:56px; align-items:start;}
.prose{max-width:72ch;}
.prose h2{font-size:26px; margin:40px 0 14px; font-weight:700;}
.prose h2:first-child{margin-top:0;}
.prose h3{font-size:19px; margin:28px 0 10px; font-weight:700;}
.prose p{font-size:16px; line-height:1.75; color:#2b2f4d; margin-bottom:16px;}
.prose ul, .prose ol{margin:0 0 18px 22px; font-size:16px; line-height:1.75; color:#2b2f4d;}
.prose li{margin-bottom:8px;}
.prose strong{color:var(--text);}
.stat-row{display:flex; gap:22px; flex-wrap:wrap; margin:22px 0 30px;}
.stat-pill{
  background:var(--card); border:1px solid var(--line); border-radius:12px; padding:16px 20px; min-width:150px;
}
.stat-pill .num{font-family:'IBM Plex Mono',monospace; font-size:22px; font-weight:600; color:var(--cyan-dim);}
.stat-pill .lbl{font-size:12.5px; color:var(--muted); margin-top:4px;}
.quote-inline{
  border-left:3px solid var(--cyan-dim); padding:4px 0 4px 20px; margin:22px 0; font-style:italic; color:#3a3e5f;
}

/* Sidebar: related-topic cluster links -- internal linking
   fix (Step 3 / Step 2 of the plan) so every page links to
   its topic siblings and back to the pillar/homepage. */
.sidebar{position:sticky; top:100px;}
.sidebar-card{background:var(--card); border:1px solid var(--line); border-radius:14px; padding:22px;}
.sidebar-card h4{font-size:13px; text-transform:uppercase; letter-spacing:.06em; color:var(--muted); margin-bottom:14px;}
.sidebar-card ul{list-style:none; display:flex; flex-direction:column; gap:10px;}
.sidebar-card a{font-size:14px; font-weight:600; color:var(--text); display:block; padding:8px 0; border-bottom:1px solid var(--line);}
.sidebar-card a:last-child{border-bottom:none;}
.sidebar-card a:hover{color:var(--cyan-dim);}
.sidebar-cta{margin-top:18px;}

/* FAQ accordion -- paired with FAQPage schema. Native <details>
   is used so content is in the HTML (crawlable/citable) even
   with JS disabled. */
.faq-list{max-width:820px;}
.faq-item{border:1px solid var(--line); border-radius:12px; margin-bottom:12px; background:var(--card); overflow:hidden;}
.faq-item summary{
  cursor:pointer; list-style:none; padding:20px 24px; font-weight:700; font-size:16px;
  display:flex; justify-content:space-between; align-items:center; gap:14px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:'+'; font-family:'IBM Plex Mono',monospace; font-size:20px; color:var(--cyan-dim); flex-shrink:0;}
.faq-item[open] summary::after{content:'\2212';}
.faq-item .faq-a{padding:0 24px 20px; font-size:15px; line-height:1.7; color:#2b2f4d;}

/* Topic hub grid on the homepage's new "Explore by topic"
   section, and on faq.html's related-topics section. */
.hub-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:18px; margin-top:34px;}
.hub-card{
  background:var(--card); border:1px solid var(--line); border-radius:16px; padding:26px 24px;
  transition:transform .2s, box-shadow .2s;
}
.hub-card:hover{transform:translateY(-3px); box-shadow:0 14px 30px rgba(20,20,50,.08);}
.hub-card .icn{width:26px; height:26px; color:var(--cyan-dim); margin-bottom:16px;}
.hub-card h4{font-size:16px; font-weight:700; margin-bottom:8px;}
.hub-card p{font-size:13.5px; color:var(--muted); line-height:1.55;}
.hub-card .go{margin-top:14px; font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--cyan-dim); font-weight:600;}

/* Small "last updated" / author trust line -- GEO reward for
   author authority + freshness signals. */
.trust-line{
  display:flex; gap:18px; flex-wrap:wrap; align-items:center; margin-top:18px;
  font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--muted);
}
.trust-line b{color:var(--text);}

@media(max-width:860px){
  .article-grid{grid-template-columns:1fr;}
  .sidebar{position:static;}
  .hub-grid{grid-template-columns:1fr 1fr;}
  .page-hero h1{font-size:30px;}
}
@media(max-width:560px){
  .hub-grid{grid-template-columns:1fr;}
}