@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700;800&family=Manrope:wght@400;500;600;700&family=JetBrains+Mono:wght@500;600&display=swap');

  :root{
    /* dark-first: this is the default palette */
    --bg:#08070f;
    --surface:#131022;
    --surface-2:#1c1832;
    --ink:#f6f5fc;
    --ink-soft:#b6b1cf;
    --ink-faint:#7c7594;
    --border:#251f3a;
    --border-strong:#37304e;
    --blue:#3d6bff;
    --violet:#8f4bfb;
    --magenta:#e23dc0;
    --cyan:#2ed2ee;
    --grad-brand:linear-gradient(135deg,var(--blue) 0%,var(--violet) 45%,var(--magenta) 78%,var(--cyan) 100%);
    --grad-brand-soft:linear-gradient(135deg,rgba(61,107,255,.22),rgba(143,75,251,.22) 45%,rgba(226,61,192,.2) 78%,rgba(46,210,238,.2) 100%);
    --accent-ink:#b28dfd;
    --band-bg:#161329;
    --band-border:#2c2646;
    --shadow-sm:0 1px 2px rgba(0,0,0,.45);
    --shadow-md:0 10px 30px -8px rgba(0,0,0,.6);
    --shadow-lg:0 26px 70px -18px rgba(143,75,251,.5);
    --radius:20px;
    color-scheme:dark;
  }
  @media (prefers-color-scheme: light){
    :root:not([data-theme="dark"]){
      --bg:#f7f7fb;
      --surface:#ffffff;
      --surface-2:#f0eff9;
      --ink:#15131f;
      --ink-soft:#59566d;
      --ink-faint:#8d8aa0;
      --border:#e6e4f1;
      --border-strong:#d8d5ea;
      --grad-brand-soft:linear-gradient(135deg,rgba(46,88,255,.12),rgba(129,56,250,.12) 45%,rgba(221,47,184,.12) 78%,rgba(28,199,230,.12) 100%);
      --accent-ink:#8138fa;
      --band-bg:#15131f;
      --band-border:#15131f;
      --shadow-sm:0 1px 2px rgba(21,19,31,.06);
      --shadow-md:0 8px 24px -8px rgba(21,19,31,.16);
      --shadow-lg:0 24px 60px -20px rgba(46,88,255,.28);
      color-scheme:light;
    }
  }
  :root[data-theme="light"]{
    --bg:#f7f7fb;
    --surface:#ffffff;
    --surface-2:#f0eff9;
    --ink:#15131f;
    --ink-soft:#59566d;
    --ink-faint:#8d8aa0;
    --border:#e6e4f1;
    --border-strong:#d8d5ea;
    --grad-brand-soft:linear-gradient(135deg,rgba(46,88,255,.12),rgba(129,56,250,.12) 45%,rgba(221,47,184,.12) 78%,rgba(28,199,230,.12) 100%);
    --accent-ink:#8138fa;
    --band-bg:#15131f;
    --band-border:#15131f;
    --shadow-sm:0 1px 2px rgba(21,19,31,.06);
    --shadow-md:0 8px 24px -8px rgba(21,19,31,.16);
    --shadow-lg:0 24px 60px -20px rgba(46,88,255,.28);
    color-scheme:light;
  }

  *{box-sizing:border-box;}
  html,body{margin:0;padding:0;}
  body{
    background:var(--bg);
    color:var(--ink);
    font-family:'Manrope',system-ui,-apple-system,sans-serif;
    line-height:1.55;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  .wrap{width:100%;max-width:1180px;margin:0 auto;padding-inline:24px;}
  h1,h2,h3{font-family:'Sora',system-ui,sans-serif;margin:0;letter-spacing:-0.01em;text-wrap:balance;}
  .eyebrow{
    font-family:'JetBrains Mono',monospace;
    font-size:12px;
    font-weight:600;
    letter-spacing:.14em;
    text-transform:uppercase;
    color:var(--accent-ink);
    display:inline-flex;
    align-items:center;
    gap:8px;
  }
  .eyebrow::before{
    content:"";
    width:7px;height:7px;border-radius:50%;
    background:var(--grad-brand);
    flex:none;
  }
  .grad-text{
    background:var(--grad-brand);
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
  }
  .btn{
    display:inline-flex;align-items:center;gap:8px;
    font-family:'Manrope',sans-serif;font-weight:700;font-size:15px;
    padding:13px 22px;border-radius:999px;border:1px solid transparent;
    cursor:pointer;transition:transform .15s ease, box-shadow .15s ease, opacity .15s ease;
    white-space:nowrap;
  }
  .btn:hover{transform:translateY(-1px);}
  .btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--shadow-md);}
  .btn-primary:hover{box-shadow:var(--shadow-lg);}
  .btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--border-strong);}
  .btn-text{padding:13px 4px;color:var(--ink);font-weight:700;}
  .btn-text svg{transition:transform .15s ease;}
  .btn-text:hover svg{transform:translateX(3px);}

  /* icon base */
  .icon{width:22px;height:22px;flex:none;}
  .icon-lg{width:26px;height:26px;}

  /* ---------- NAV ---------- */
  header.nav{
    position:sticky;top:env(safe-area-inset-top,0px);z-index:40;
    background:color-mix(in srgb, var(--bg) 82%, transparent);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--border);
  }
  .nav-row{display:flex;align-items:center;justify-content:space-between;padding-block:16px;gap:20px;}
  .brand{display:flex;align-items:center;gap:10px;font-family:'Sora',sans-serif;font-weight:700;font-size:19px;flex:none;}
  .logo-badge{
    display:inline-flex;align-items:center;justify-content:center;flex:none;
    width:32px;height:32px;border-radius:9px;background:#fff;padding:3px;
    box-shadow:0 2px 8px rgba(0,0,0,.3);
  }
  .logo-badge img{width:100%;height:100%;border-radius:6px;}
  .brand .one{background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;}
  .brand sup{font-size:10px;font-weight:600;color:var(--ink-faint);margin-left:1px;}
  nav.links{display:flex;align-items:center;gap:32px;}
  nav.links a{font-size:14.5px;font-weight:600;color:var(--ink-soft);}
  nav.links a:hover{color:var(--ink);}
  nav.links a.current{color:var(--ink);}
  .nav-actions{display:flex;align-items:center;gap:14px;flex:none;}
  .nav-actions .btn-primary{padding:11px 20px;font-size:14px;}
  .login-link{font-size:14.5px;font-weight:700;color:var(--ink-soft);}
  a.user-chip{font-size:14px;font-weight:700;color:var(--ink);}
  a.user-chip:hover{color:var(--accent-ink);}
  .menu-toggle{display:none;background:none;border:none;padding:6px;cursor:pointer;}
  .menu-toggle svg{width:24px;height:24px;}
  .theme-toggle{
    display:flex;align-items:center;justify-content:center;flex:none;
    width:38px;height:38px;border-radius:999px;border:1px solid var(--border-strong);
    background:var(--surface);color:var(--ink-soft);cursor:pointer;padding:0;
  }
  .theme-toggle:hover{color:var(--ink);}
  .theme-toggle svg{width:18px;height:18px;}
  .theme-toggle svg[hidden]{display:none;}

  @media (max-width: 860px){
    nav.links{
      display:none;
      position:absolute;top:100%;left:0;right:0;
      max-height:calc(100vh - 66px);overflow-y:auto;
      background:var(--bg);z-index:39;
      flex-direction:column;align-items:flex-start;gap:0;
      padding:8px 24px 24px;border-top:1px solid var(--border);
      box-shadow:var(--shadow-md);
    }
    nav.links.open{display:flex;}
    nav.links a{padding-block:14px;width:100%;border-bottom:1px solid var(--border);font-size:16px;}
    .login-link{display:none;}
    .menu-toggle{display:block;}
  }

  /* ---------- HERO ---------- */
  .hero{padding-block:64px 84px;overflow:hidden;position:relative;}
  .hero::before{
    content:"";position:absolute;width:640px;height:640px;border-radius:50%;
    background:var(--grad-brand);filter:blur(140px);opacity:.16;
    top:-280px;right:-220px;z-index:0;pointer-events:none;
  }
  .hero .hero-grid{position:relative;z-index:1;}
  .hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;}
  .hero h1{font-size:clamp(34px,4.6vw,58px);font-weight:700;line-height:1.06;margin-block:18px 20px;}
  .hero p.lead{font-size:17.5px;color:var(--ink-soft);max-width:46ch;margin:0 0 30px;}
  .hero-ctas{display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
  .hero-note{margin-top:28px;font-size:13.5px;color:var(--ink-faint);display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
  .hero-note .dot{width:4px;height:4px;border-radius:50%;background:var(--ink-faint);}

  /* hub graphic */
  .hub-wrap{position:relative;display:flex;align-items:center;justify-content:center;}
  .hub-wrap svg{width:100%;height:auto;max-width:480px;overflow:visible;}
  .hub-core-img{width:48px;height:48px;border-radius:10px;}
  .node-label{font-family:'JetBrains Mono',monospace;font-size:11px;font-weight:600;fill:var(--ink-soft);}
  .node-circle{fill:var(--surface);stroke:var(--border-strong);stroke-width:1.5;}
  .spoke-line{stroke:url(#spokeGrad);stroke-width:1.5;stroke-dasharray:3 5;opacity:.65;}
  .core-ring{fill:none;stroke:var(--border);stroke-width:1;stroke-dasharray:2 6;}

  @media (max-width:860px){
    .hero-grid{grid-template-columns:1fr;gap:40px;}
    .hub-wrap svg{max-width:360px;}
  }

  /* ---------- SECTION HEADS ---------- */
  section{padding-block:78px;}
  .section-head{max-width:640px;margin-bottom:44px;}
  .section-head h2{font-size:clamp(26px,3.2vw,38px);font-weight:700;margin-top:14px;}
  .section-head p{color:var(--ink-soft);font-size:16px;margin-top:14px;}
  .section-alt{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}

  /* ---------- SERVICES GRID ---------- */
  .services-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:18px;
  }
  .service-card{
    background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
    padding:28px;display:flex;flex-direction:column;gap:16px;
    transition:border-color .15s ease, transform .15s ease, box-shadow .15s ease;
  }
  .service-card:hover{border-color:var(--border-strong);transform:translateY(-3px);box-shadow:var(--shadow-md);}
  .service-card.flagship{background:var(--grad-brand-soft);position:relative;}
  .service-card.flagship::after{
    content:"";position:absolute;inset:0;border-radius:var(--radius);padding:1px;
    background:var(--grad-brand);
    -webkit-mask:linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;opacity:.5;
  }
  .card-icon{
    width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;
    background:var(--surface-2);flex:none;
  }
  .flagship .card-icon{background:var(--surface);box-shadow:var(--shadow-sm);}
  .card-icon .icon{width:24px;height:24px;}
  .service-card h3{font-size:19px;font-weight:700;display:flex;align-items:center;gap:10px;}
  .tag{
    font-family:'JetBrains Mono',monospace;font-size:10.5px;font-weight:600;letter-spacing:.06em;
    text-transform:uppercase;color:#fff;background:var(--grad-brand);padding:3px 9px;border-radius:999px;
  }
  .service-card p{margin:0;color:var(--ink-soft);font-size:14.5px;}

  @media (max-width:900px){
    .services-grid{grid-template-columns:repeat(2,1fr);}
  }
  @media (max-width:560px){
    .services-grid{grid-template-columns:1fr;}
  }

  /* ---------- WORKFLOW ---------- */
  .workflow{display:grid;grid-template-columns:repeat(3,1fr);gap:0;position:relative;}
  .workflow::before{
    content:"";position:absolute;top:24px;left:calc(100%/6);right:calc(100%/6);height:1px;
    background:linear-gradient(90deg,var(--border-strong),var(--border-strong));
    background-image:repeating-linear-gradient(90deg,var(--border-strong) 0 6px, transparent 6px 12px);
    z-index:0;
  }
  .step{position:relative;z-index:1;padding-inline:20px;}
  .step:first-child{padding-left:0;}
  .step:last-child{padding-right:0;}
  .step-num{
    width:48px;height:48px;border-radius:50%;background:var(--surface);border:1.5px solid var(--border-strong);
    display:flex;align-items:center;justify-content:center;margin-bottom:22px;
    font-family:'JetBrains Mono',monospace;font-weight:600;font-size:14px;
  }
  .step h3{font-size:19px;font-weight:700;margin-bottom:10px;}
  .step p{margin:0;color:var(--ink-soft);font-size:14.5px;max-width:32ch;}

  @media (max-width:760px){
    .workflow{grid-template-columns:1fr;gap:36px;}
    .workflow::before{display:none;}
    .step{padding-inline:0 !important;}
  }

  /* ---------- USE CASES ---------- */
  .usecases{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
  .usecase{
    border-radius:var(--radius);padding:30px;border:1px solid var(--border);
    background:var(--bg);display:flex;flex-direction:column;gap:14px;min-height:200px;
  }
  .usecase .card-icon{background:var(--surface);}
  .usecase h3{font-size:18px;font-weight:700;}
  .usecase p{margin:0;color:var(--ink-soft);font-size:14.5px;flex:1;}
  .usecase .uc-link{font-size:13.5px;font-weight:700;display:inline-flex;align-items:center;gap:6px;color:var(--violet);}

  @media (max-width:860px){
    .usecases{grid-template-columns:1fr;}
  }

  /* ---------- CTA BAND ---------- */
  .cta-band{
    border-radius:28px;background:var(--band-bg);border:1px solid var(--band-border);color:#fff;padding:56px 48px;
    display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
    position:relative;overflow:hidden;
  }
  .cta-band::before{
    content:"";position:absolute;width:520px;height:520px;border-radius:50%;
    background:var(--grad-brand);filter:blur(90px);opacity:.35;top:-260px;right:-160px;
  }
  .cta-band > *{position:relative;}
  .cta-band h2{font-size:clamp(24px,3vw,32px);color:#fff;max-width:14ch;}
  .cta-band p{color:#c9c6db;margin:12px 0 0;font-size:15.5px;max-width:38ch;}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
  .cta-band .btn-ghost{background:transparent;border-color:#3a3650;color:#fff;}

  /* ---------- FOOTER ---------- */
  footer{border-top:1px solid var(--border);padding-block:56px 40px;}
  .footer-top{display:grid;grid-template-columns:1.3fr repeat(4,1fr);gap:32px;padding-bottom:40px;}
  .footer-brand p{color:var(--ink-soft);font-size:14px;max-width:30ch;margin:14px 0 0;}
  .footer-col h4{font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint);margin:0 0 16px;font-weight:600;}
  .footer-col a{display:block;font-size:14.5px;color:var(--ink-soft);padding-block:7px;}
  .footer-col a:hover{color:var(--ink);}
  .footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:28px;border-top:1px solid var(--border);flex-wrap:wrap;gap:12px;}
  .footer-bottom p{margin:0;font-size:13px;color:var(--ink-faint);}
  .footer-legal{display:flex;gap:20px;}
  .footer-legal a{font-size:13px;color:var(--ink-soft);}
  .footer-legal a:hover{color:var(--ink);}

  @media (max-width:760px){
    .footer-top{grid-template-columns:1fr 1fr;gap:28px;}
  }

  .plan-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px;}
  .plan-card{
    background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
    overflow:hidden;display:flex;flex-direction:column;
  }
  .plan-card:hover{border-color:var(--border-strong);box-shadow:var(--shadow-md);}
  .plan-image{width:100%;height:180px;object-fit:cover;background:var(--surface-2);display:block;}
  .plan-image-empty{height:180px;background:var(--grad-brand-soft);}
  .plan-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .plan-body h3{font-size:18px;font-weight:700;margin:0;}
  .plan-body p{margin:0;color:var(--ink-soft);font-size:14.5px;flex:1;}
  .plan-body .plan-credits{flex:0;font-size:13px;color:var(--ink-faint);}
  .plan-price{font-weight:700;font-size:18px;}
  .plan-price span{font-weight:500;color:var(--ink-soft);font-size:14px;}
  .plan-body .btn{align-self:flex-start;margin-top:6px;}
  .plan-error{margin-bottom:14px;}