:root{
      --bg:#090b0d;
      --bg-2:#0d1013;
      --panel:#11151a;
      --text:#f3f5f7;
      --muted:#aeb7c1;
      --line:#29313a;
      --line-strong:#3b4652;
      --accent:#1c9fbe;
      --accent-2:#53c4d8;
      --font-body:"Noto Sans", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      --font-display:"Noto Sans Display", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      --max:1180px;
      --shadow:0 16px 32px rgba(0,0,0,.28);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      background:var(--bg);
      color:var(--text);
      font-family:var(--font-body);
      -webkit-font-smoothing:antialiased;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease}
    a:focus-visible,button:focus-visible{outline:2px solid var(--accent-2);outline-offset:4px}
    ::selection{background:#123b48;color:#fff}
    button{font:inherit;transition:color .18s ease,border-color .18s ease,background-color .18s ease}
    .shell{width:min(var(--max), calc(100% - 40px)); margin:0 auto}
    .mono{
      font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
      letter-spacing:.02em;
    }
    header{
      position:sticky; top:0; z-index:40;
      background:rgba(8,10,12,.78);
      border-bottom:1px solid rgba(255,255,255,.06);
      backdrop-filter:blur(18px);
    }
    .nav{
      height:74px; display:flex; align-items:center; justify-content:space-between; gap:28px;
    }
    .brand{display:flex; align-items:center; gap:16px}
    .brand-mark{width:72px;height:34px;display:block}
    .brand-name{font-size:11px;letter-spacing:.18em;color:var(--muted);text-transform:uppercase}
    nav{display:flex;gap:28px;align-items:center}
    nav a{font-size:13px;color:#b9c0c8;transition:.2s}
    nav a:hover{color:#fff}
    nav a:focus-visible{outline:2px solid var(--accent-2);outline-offset:4px}
    .nav-cta{
      border:1px solid var(--line-strong);
      padding:10px 14px;
      background:var(--bg-2);
    }
    .hero{
      position:relative;
      min-height:760px;
      display:grid;
      align-items:center;
      border-bottom:1px solid var(--line);
      overflow:hidden;
    }
    h1{
      font-family:var(--font-display);
      margin:18px 0 24px;
      max-width:820px;
      font-size:clamp(54px,8vw,108px);
      line-height:.91;
      letter-spacing:-.055em;
      font-weight:680;
    }
    h1 .accent{color:var(--accent)}
    .hero-copy{
      font-size:19px;
      line-height:1.6;
      color:#aeb6c0;
      max-width:730px;
      margin-bottom:34px;
    }
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .btn{
      display:inline-flex;align-items:center;gap:10px;
      padding:14px 17px;
      border:1px solid var(--line-strong);
      background:var(--panel);
      font-size:13px;
      letter-spacing:.02em;
      transition:color .18s ease,border-color .18s ease,background-color .18s ease;
    }
    .btn:hover{transform:translateY(-1px);border-color:#53606d}
    .btn.primary{
      background:var(--text);
      color:#0a0c0f;
      border-color:var(--text);
      font-weight:700;
    }
    .btn .arrow{font-size:16px;line-height:1}
    .hero{padding:0}
    h1{font-size:clamp(54px,7vw,96px);letter-spacing:-.04em}
    h1 .accent{color:inherit}

    section{padding:110px 0;border-bottom:1px solid var(--line)}
    .scroll-motion-ready section:not(.hero)>.shell{transform:translateY(28px);transition:transform .7s cubic-bezier(.16,1,.3,1)}
    .scroll-motion-ready section.section-arrived>.shell{transform:translateY(0)}
    .section-head{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(260px,.8fr);gap:40px;align-items:end;margin-bottom:58px}
    .section-head>div{display:contents}
    .section-head h2{
      font-family:var(--font-display);
      margin:0;
      font-size:clamp(34px,4.8vw,60px);
      line-height:1.02;letter-spacing:-.035em;font-weight:620;
      max-width:850px;
    }
    .section-head p{margin:0 0 4px;color:var(--muted);line-height:1.65;max-width:62ch;font-size:16px}

    .system-path{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--line-strong);border-bottom:1px solid var(--line)}
    .system-path article{display:flex;flex-direction:column;align-items:flex-start;min-height:220px;padding:24px 24px 24px 0}
    .system-path article+article{border-left:1px solid var(--line);padding-left:24px}
    .system-path h3{font-size:20px;letter-spacing:-.02em;margin:0 0 12px}
    .system-path p{color:var(--muted);font-size:14px;line-height:1.62;margin:0 0 20px;max-width:34ch}
    .system-path a{font-size:13px;text-underline-offset:4px;text-decoration:underline;margin-top:auto}
    .system-path a:hover{color:var(--accent-2)}
    .system-footnote{font-size:13px;line-height:1.6;color:var(--muted);margin:18px 0 0}

    .positioning{border-top:1px solid var(--line-strong)}
    .positioning article{display:grid;grid-template-columns:minmax(150px,.48fr) minmax(230px,1fr) minmax(0,1.3fr);gap:28px;align-items:start;padding:24px 0;border-bottom:1px solid var(--line)}
    .num{font-size:11px;color:var(--muted);letter-spacing:.04em;margin:5px 0 0}
    .positioning h3,.service h3,.step h3,.principle h3{font-size:20px;margin:0 0 12px;letter-spacing:-.02em}
    .positioning p,.service p,.step p,.principle p{margin:0;color:var(--muted);line-height:1.62;font-size:14px}

    .services{border-top:1px solid var(--line-strong)}
    .service{display:grid;grid-template-columns:minmax(165px,.55fr) minmax(230px,1fr) minmax(290px,1.2fr);gap:32px;align-items:start;padding:30px 0;border:0;border-bottom:1px solid var(--line);background:none;min-height:0;overflow:visible}
    .service .tag{font-size:12px;color:var(--muted);letter-spacing:.02em;line-height:1.5;margin:4px 0 0}
    .service h3{font-size:clamp(22px,2.4vw,29px);margin-bottom:12px}
    .service ul{margin:0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 18px}
    .service li{font-size:14px;color:#d4d9df;border-top:1px solid var(--line);padding-top:9px;line-height:1.45}

    .flow{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:0;padding:12px 8px 0 12px}
    .flow:before{content:"";position:absolute;top:46px;left:12px;right:8px;height:1px;background:var(--line-strong)}
    .step{position:relative;padding:24px 22px 0 0;min-height:220px}
    .step:not(:last-child){margin-right:22px}
    .step .idx{position:relative;width:max-content;padding-right:10px;background:var(--bg);font-size:11px;color:var(--accent-2);margin:0 0 40px}
    .step h3{font-size:17px}
    .step p{font-size:13px}

    .principles{border-top:1px solid var(--line-strong)}
    .principle{display:grid;grid-template-columns:minmax(150px,.48fr) minmax(230px,1fr) minmax(0,1.3fr);gap:28px;align-items:start;padding:24px 0;border:0;border-bottom:1px solid var(--line);background:none}
    .principle .kicker{font-size:11px;color:var(--muted);letter-spacing:.04em;text-transform:uppercase;margin:5px 0 0}

    .statement{
      padding:90px 0;
      display:grid;grid-template-columns:1.3fr .7fr;gap:70px;align-items:end;
    }
    .statement blockquote{
      font-family:var(--font-display);margin:0;font-size:clamp(34px,5vw,66px);line-height:1.04;letter-spacing:-.04em;font-weight:560
    }
    .statement aside{
      border-left:1px solid var(--line-strong);padding-left:24px;color:var(--muted);line-height:1.7;font-size:14px
    }

    .engagements{border-top:1px solid var(--line-strong)}
    .engagement{display:grid;grid-template-columns:minmax(180px,.65fr) minmax(0,1.4fr) minmax(180px,.65fr);gap:28px;align-items:baseline;padding:24px 0;border:0;border-bottom:1px solid var(--line);background:none}
    .engagement strong{font-size:18px}
    .engagement p{color:var(--muted);font-size:14px;line-height:1.6;margin:0}
    .engagement .meta-line{font-size:11px;color:var(--muted);letter-spacing:.02em;text-transform:uppercase;margin:0}

    .contact-wrap{
      border:1px solid var(--line);
      background:#0b0f13;
      display:grid;grid-template-columns:1.25fr .75fr;gap:50px;
      padding:42px;box-shadow:var(--shadow);
    }
    .contact-wrap h2{font-family:var(--font-display);font-size:clamp(38px,6vw,76px);line-height:.96;letter-spacing:-.035em;margin:8px 0 22px}
    .contact-wrap p{color:var(--muted);max-width:660px;line-height:1.65}
    .contact-side{
      display:flex;flex-direction:column;justify-content:space-between;align-items:flex-start;
      border-left:1px solid var(--line);padding-left:30px
    }
    .contact-side .mail{font-size:18px;margin-top:12px}
    footer{padding:30px 0 46px;color:var(--muted);font-size:12px}
    .footer-row{display:flex;justify-content:space-between;gap:20px;align-items:center}
    .footer-links{display:flex;gap:18px}

    @media (max-width: 920px){
      header nav a:not(.nav-cta):not(.language-switch){display:none}
      .section-head{grid-template-columns:1fr;gap:20px}
      .system-path{grid-template-columns:repeat(2,minmax(0,1fr))}
      .system-path article:nth-child(3){border-left:0;padding-left:0}
      .system-path article:nth-child(n+3){border-top:1px solid var(--line)}
      .positioning article,.principle,.service,.engagement{grid-template-columns:150px minmax(0,1fr)}
      .positioning article p,.principle p,.engagement p,.engagement .meta-line{grid-column:2}
      .service ul{grid-column:2}
      .flow,.engagements{grid-template-columns:1fr}
      .flow{grid-template-columns:1fr;padding:0;margin-left:5px}
      .flow:before{top:0;bottom:0;left:0;right:auto;width:1px;height:auto}
      .step{padding:0 0 26px 24px;min-height:0}
      .step:not(:last-child){margin:0}
      .step .idx{margin-left:-24px;margin-bottom:16px;padding:0 8px 0 0}
      .contact-wrap,.statement{grid-template-columns:1fr}
      .contact-side{border-left:none;border-top:1px solid var(--line);padding:24px 0 0}
    }
    @media (max-width: 620px){
      .shell{width:min(100% - 24px, var(--max))}
      .brand-name{display:none}
      .hero{min-height:auto;padding:0}
      h1{font-size:56px}
      .hero-copy{font-size:16px}
      section{padding:76px 0}
      .system-path{grid-template-columns:1fr}
      .system-path article,.system-path article+article{min-height:0;padding:20px 0;border-left:0}
      .system-path article+article{border-top:1px solid var(--line)}
      .positioning article,.principle,.service,.engagement{grid-template-columns:1fr;gap:12px}
      .positioning article p,.principle p,.engagement p,.engagement .meta-line{grid-column:auto}
      .service ul{grid-column:auto;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 14px}
      .service-copy h3{margin-bottom:8px}
      .meta{grid-template-columns:1fr}
      .contact-wrap{padding:26px}
      .footer-row{align-items:flex-start;flex-direction:column}
    }
    @media (prefers-reduced-motion: reduce){
      html{scroll-behavior:auto}
      *,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}
    }

/* Operations is the route: the page index and capability map share one signal language. */
header{background:var(--bg);backdrop-filter:none;border-bottom:1px solid var(--line)}
.nav.shell{width:min(1440px,calc(100% - 64px));height:72px}
.nav-tools{display:flex;align-items:center;gap:24px}
.nav-tools .nav-cta{font-size:12px;color:var(--text);padding:10px 13px}
.nav-tools .language-switch{font:11px "SFMono-Regular",Consolas,monospace;color:var(--muted);letter-spacing:.08em}
.site-layout{width:min(1440px,calc(100% - 64px));margin:0 auto;display:grid;grid-template-columns:184px minmax(0,1fr);gap:48px;align-items:start}
.system-index{position:sticky;top:106px;align-self:start;padding-top:50px;max-height:calc(100vh - 118px)}
.system-index-title{font:11px "SFMono-Regular",Consolas,monospace;letter-spacing:.12em;color:var(--muted)}
.route-nav{position:relative;display:grid;gap:0;margin-top:18px;padding-left:18px}
.route-nav::before{content:"";position:absolute;top:9px;bottom:9px;left:3px;width:1px;background:var(--line-strong)}
.route-nav a{position:relative;display:block;padding:12px 0;color:var(--muted);font-size:12px;line-height:1.35;transition:color .2s ease}
.route-nav a::before{content:"";position:absolute;left:-18px;top:50%;width:7px;height:7px;transform:translateY(-50%);border:1px solid var(--line-strong);background:var(--bg)}
.route-nav a:hover,.route-nav a[aria-current="location"]{color:var(--text)}
.route-nav a[aria-current="location"]::before{background:var(--accent-2);border-color:var(--accent-2)}
.page-content{min-width:0}
.page-content section,.page-content .statement{scroll-margin-top:128px}
.page-content section{position:relative;padding:clamp(74px,8vw,112px) 18px;border-bottom:1px solid var(--line)}
.page-content .hero{min-height:0;padding:22px 18px 36px}
h1{max-width:620px;font-size:clamp(56px,5.2vw,76px);line-height:.96;letter-spacing:-.045em}
h1 .accent{color:var(--accent-2)}
.hero-copy{max-width:52ch;font-size:17px}
.section-head{grid-template-columns:minmax(0,1.15fr) minmax(220px,.85fr);gap:48px;margin-bottom:46px}
.section-head h2{font-size:clamp(36px,4.2vw,64px);line-height:.99;letter-spacing:-.035em}
.section-head p{font-size:15px;max-width:54ch}
.positioning{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line-strong)}
.positioning article{display:flex;flex-direction:column;gap:16px;min-height:235px;padding:22px 28px 20px 0;border-bottom:0}
.positioning article+article{border-left:1px solid var(--line);padding-left:28px}
.positioning h3{font-size:clamp(19px,2vw,26px);line-height:1.12}
.positioning p{font-size:14px;max-width:34ch}
.system-path{grid-template-columns:repeat(4,minmax(0,1fr));border-bottom:0}
.system-path article{position:relative;min-height:250px;padding:30px 20px 16px 0}
.system-path article+article{padding-left:20px}
.system-path h3::before{content:"";display:block;width:7px;height:7px;background:var(--bg);border:1px solid var(--accent-2);margin:0 0 22px}
.system-path article+article{border-left:0}
.system-path article+article::before{content:"";position:absolute;top:33px;left:-1px;width:calc(100% + 1px);height:1px;background:var(--line-strong);z-index:-1}
.system-path article:nth-child(3){border-left:0;padding-left:20px}
.system-path article:nth-child(n+3){border-top:0}
.system-footnote{border-top:1px solid var(--line);padding-top:16px}
.services{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:40px;border-top:1px solid var(--line-strong)}
.service{display:flex;flex-direction:column;gap:16px;min-height:0;padding:30px 0 36px;border-bottom:1px solid var(--line)}
.service:nth-child(even){border-left:1px solid var(--line);padding:30px 0 36px 40px}
.service .tag{font-size:11px;letter-spacing:.1em;text-transform:uppercase}
.service h3{font-size:clamp(27px,3vw,42px);line-height:1.02;letter-spacing:-.035em}
.service-copy p{max-width:45ch}
.service ul{width:100%;margin-top:4px}
.service li{font-size:13px}
.flow{padding-top:16px}
.flow:before{top:48px}
.step{min-height:235px;padding-top:26px}
.step .idx{font-size:12px;margin-bottom:34px}
.step h3{font-size:18px}
.principles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid var(--line-strong)}
.principle{display:flex;flex-direction:column;gap:12px;min-height:218px;padding:24px 28px 24px 0;border-bottom:1px solid var(--line)}
.principle:nth-child(even){border-left:1px solid var(--line);padding-left:28px}
.principle .kicker{font-size:11px}
.principle h3{font-size:22px;line-height:1.08}
.principle p{max-width:42ch}
.engagements{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line-strong)}
.engagement{display:flex;flex-direction:column;align-items:flex-start;gap:18px;min-height:250px;padding:24px 24px 18px 0;border-bottom:0}
.engagement+.engagement{border-left:1px solid var(--line);padding-left:24px}
.engagement strong{font-size:clamp(20px,2vw,27px);line-height:1.05}
.engagement p{max-width:34ch}
.engagement .meta-line{margin-top:auto}
.page-content .statement{padding:68px 18px;grid-template-columns:1.15fr .85fr;gap:48px;border-bottom:1px solid var(--line)}
.statement blockquote{font-size:clamp(36px,5.2vw,68px);line-height:.98;letter-spacing:-.035em}
.statement aside{max-width:40ch}
.contact-wrap{border:0;border-top:1px solid var(--line-strong);border-bottom:1px solid var(--line-strong);background:transparent;box-shadow:none;padding:42px 16px}
.contact-wrap h2{font-size:clamp(42px,5.6vw,72px);max-width:740px}
footer{width:min(1440px,calc(100% - 64px));margin:0 auto}
@media(max-width:1100px){
 .site-layout{grid-template-columns:150px minmax(0,1fr);gap:26px}
 .service:nth-child(even){padding-left:24px}
 .engagement+.engagement{padding-left:18px}
}
@media(max-width:820px){
 .site-layout{display:block;width:min(100% - 32px,720px)}
 .system-index{top:72px;z-index:35;margin:0 -16px;padding:0 16px;max-height:none;background:var(--bg);border-bottom:1px solid var(--line-strong)}
 .system-index-title{display:none}
 .route-nav{display:flex;gap:22px;width:100%;margin:0;padding:0;overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:thin;scrollbar-color:var(--line-strong) var(--bg)}
 .route-nav::before{top:auto;bottom:0;left:0;right:0;width:auto;height:1px}
 .route-nav a{display:block;flex:0 0 auto;padding:14px 0 13px;font-size:12px;white-space:nowrap}
 .route-nav a::before{display:none}
 .route-nav a[aria-current="location"]{box-shadow:inset 0 -2px var(--accent-2)}
 .page-content .hero{padding:0 10px 30px}
 .page-content section{padding:76px 10px}
 .page-content .statement{padding:52px 10px;grid-template-columns:1fr;gap:20px}
 .section-head{grid-template-columns:1fr;gap:18px;margin-bottom:34px}
 .section-head>div{display:block}
 .section-head h2{max-width:18ch}
 .positioning article{min-height:200px}
 .system-path article{min-height:220px}
 .service:nth-child(even){padding-left:24px}
 .contact-wrap{padding:32px 16px;gap:24px}
}
@media(max-width:620px){
 .nav.shell,footer{width:calc(100% - 32px)}
 .nav-tools{gap:16px}
 .nav-tools .nav-cta{padding:9px 10px;font-size:11px}
 .brand-mark{width:62px;height:30px}
 .site-layout{width:calc(100% - 24px)}
 .system-index{margin:0 -12px;padding:0 12px}
 .route-nav{gap:18px}
 .page-content .hero{padding:0 4px 24px}
 .page-content section{padding:64px 4px}
 .page-content .statement{padding:42px 4px}
 h1{font-size:clamp(48px,13vw,68px);max-width:10ch}
 .hero-copy{font-size:16px}
 .positioning{grid-template-columns:1fr}
 .positioning article,.positioning article+article{min-height:0;padding:20px 0;border-left:0;border-bottom:1px solid var(--line)}
 .positioning article:last-child{border-bottom:0}
 .positioning p{max-width:54ch}
 .system-path{grid-template-columns:1fr 1fr}
 .system-path article,.system-path article+article,.system-path article:nth-child(3){min-height:210px;padding:20px 14px 20px 0}
 .system-path article:nth-child(even){padding-left:16px;border-left:1px solid var(--line)}
 .system-path article+article::before{display:none}
 .system-path article:nth-child(n+3){border-top:1px solid var(--line)}
 .system-path h3{font-size:17px}
 .services{grid-template-columns:1fr;column-gap:0}
 .service,.service:nth-child(even){padding:26px 0 30px;border-left:0}
 .service h3{font-size:32px}
 .service ul{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 12px}
 .flow{grid-template-columns:1fr;padding-left:8px}
 .flow:before{top:0;bottom:0;left:8px;right:auto;width:1px;height:auto}
 .step{min-height:0;padding:0 0 28px 26px}
 .step .idx{margin:0 0 14px -26px;padding:0 8px 0 0}
 .principles{grid-template-columns:1fr}
 .principle,.principle:nth-child(even){min-height:0;padding:20px 0;border-left:0}
 .engagements{grid-template-columns:1fr}
 .engagement,.engagement+.engagement{min-height:0;padding:22px 0;border-left:0;border-bottom:1px solid var(--line)}
 .engagement:last-child{border-bottom:0}
 .engagement .meta-line{margin-top:0}
 .contact-wrap{grid-template-columns:1fr;gap:22px;padding:30px 12px}
 .contact-side{border-left:0;border-top:1px solid var(--line);padding:20px 0 0;gap:22px}
 .footer-row{gap:12px}
 .footer-links{flex-wrap:wrap;gap:10px 16px}
}

/* One system, built in layers: structure, context, action and operational feedback. */
.transformation-hero{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.9fr);gap:30px 44px;padding:34px 0 0;align-items:end}
.transformation-hero h1{margin:0;font-size:clamp(44px,4.4vw,64px);line-height:1.01;letter-spacing:-.04em;max-width:none}
.hero-brief .hero-copy{font-size:15px;line-height:1.6;margin:0 0 18px;max-width:54ch}
.hero-brief .btn{padding:11px 13px;min-height:44px;font-size:12px}
.system-model{grid-column:1/-1;margin:0;min-width:0}
.model-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 0 18px;border-top:1px solid var(--line-strong)}
.model-heading h2{margin:0 0 6px;font-size:22px;line-height:1.1;font-weight:500;letter-spacing:-.025em}
.model-heading p{margin:0;color:var(--muted);font-size:12px;line-height:1.5}
.model-play{display:flex;align-items:center;gap:9px;min-height:44px;padding:10px 13px;border:1px solid var(--line-strong);background:transparent;color:var(--text);font-size:12px;cursor:pointer}
.model-play:hover{border-color:var(--accent-2)}
.model-play[hidden]{display:none}
.model-play svg{width:15px;height:15px;flex:none;fill:none;stroke:currentColor;stroke-width:1.5}
.model-stages{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.model-stages a{position:relative;display:flex;align-items:center;gap:10px;min-height:56px;padding:12px 14px;color:var(--muted);font-size:13px}
.model-stages a+a{border-left:1px solid var(--line)}
.model-stages a:hover,.model-stages a[aria-pressed="true"]{color:var(--text);background:var(--panel)}
.model-stages a[aria-pressed="true"]::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--accent-2)}
.stage-order{font:11px "SFMono-Regular",Consolas,"Liberation Mono",monospace;color:var(--muted)}
.system-field{position:relative;height:286px;margin:18px 0 12px}
.model-network{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none}
.model-network-narrow{display:none}
.system-wire,.system-signal{fill:none;vector-effect:non-scaling-stroke;stroke-linejoin:round}
.system-wire{stroke:var(--line-strong);stroke-width:1;stroke-dasharray:1;opacity:.45;transition:stroke .2s ease,opacity .2s ease}
.is-active>.system-wire{stroke:var(--accent);stroke-width:1.5;opacity:1}
.system-signal{stroke:var(--text);stroke-width:3;stroke-dasharray:.12 .88;opacity:0}
.system-model[data-stage="0"] .system-wire{stroke-dasharray:.025 .045;opacity:.3}
.system-node{position:absolute;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;width:160px;min-height:48px;padding:11px 8px;transform:translate(-50%,-50%);border:1px solid var(--line-strong);background:var(--bg-2);color:var(--muted);font-size:13px;text-align:center;line-height:1.25;transition:border-color .2s ease}
.system-node.is-linked{color:var(--text);border-color:var(--accent)}
.system-node:hover{background:var(--panel);border-color:var(--accent-2)}
.system-node-infra{left:15%;top:23.8889%}
.system-node-platform{left:44%;top:23.8889%}
.system-node-automation{left:80%;top:23.8889%}
.system-node-security{left:15%;top:76.1111%}
.system-node-ai{left:80%;top:76.1111%}
.system-node-operate{left:44%;top:76.1111%;width:184px;min-height:64px}
.system-node-operate.is-linked{color:var(--bg);background:var(--text);border-color:var(--text);font-weight:650}
.system-node-operate small{font-size:12px;line-height:1.3;font-weight:400}
.model-feedback{position:absolute;left:8%;bottom:-1px;background:var(--bg);padding:0 8px;color:var(--muted);font:12px "SFMono-Regular",Consolas,monospace}
.system-model[data-stage="4"] .model-feedback{color:var(--accent-2)}
.model-detail{display:grid;grid-template-columns:minmax(180px,.8fr) minmax(0,1.5fr) auto;gap:22px;align-items:start;min-height:118px;border-top:1px solid var(--line-strong);padding:20px 0}
.model-detail h3{font-family:var(--font-display);font-size:21px;line-height:1.08;letter-spacing:-.02em;font-weight:500;margin:0}
.model-detail p{font-size:14px;line-height:1.6;margin:0;color:var(--muted);max-width:65ch}
.model-detail a{font-size:12px;text-decoration:underline;text-underline-offset:4px;line-height:1.6}
.page-content .system-notes{background:#f3f5f7;color:#0a0c0f;--text:#0a0c0f;--muted:#3b4652;--line:#d4d9df;--line-strong:#aeb7c1;--accent:#0a0c0f;--accent-2:#0a0c0f}
.system-notes .system-path{position:relative}
.system-notes .system-path::before{content:"";position:absolute;top:33px;left:3px;right:calc(25% - 23px);height:1px;background:var(--line-strong)}
.system-notes .system-path article+article::before{display:none}
.system-notes .system-path h3 a{display:inline;margin:0;font:inherit;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:5px;text-decoration-color:var(--line-strong)}
.system-notes .system-path h3 a:hover{text-decoration:underline;text-underline-offset:5px}
.system-notes .system-path h3::before{background:#f3f5f7}
@media(max-width:1100px){
 .transformation-hero{gap:28px;grid-template-columns:1.15fr 1fr}
 .transformation-hero h1{font-size:46px}
 .model-stages a{padding:12px 9px;gap:7px;font-size:12px}
 .system-node{width:132px;font-size:12px}
 .system-node-operate{width:164px}
 .model-detail{grid-template-columns:1fr 1.5fr}
 .model-detail a{grid-column:2}
}
@media(max-width:820px){
 .route-nav{padding-right:24px}
 .system-index::after{content:"";position:absolute;right:0;top:0;bottom:0;width:24px;background:linear-gradient(90deg,transparent,var(--bg));pointer-events:none}
 .transformation-hero{padding-top:30px}
 .model-stages a{gap:6px}
}
@media(max-width:620px){
 .transformation-hero{display:flex;flex-direction:column;align-items:stretch;gap:22px;padding-top:26px}
 .transformation-hero h1{order:0;font-size:clamp(33px,9.4vw,44px);line-height:1.03;max-width:none}
 .hero-brief{order:2;border-top:1px solid var(--line);padding-top:22px}
 .hero-brief .hero-copy{font-size:16px}
 .system-model{order:1}
 .model-heading{align-items:flex-start;padding:16px 0 14px;gap:12px}
 .model-heading h2{font-size:20px;max-width:16ch}
 .model-heading p{font-size:12px;max-width:28ch}
 .model-play{padding:9px;gap:6px;max-width:122px;font-size:11px;text-align:left;line-height:1.35}
 .model-stages a{flex-direction:column;align-items:flex-start;justify-content:center;gap:7px;min-height:60px;padding:9px 2px;font-size:11px}
 .model-network-wide{display:none}
 .model-network-narrow{display:block}
 .system-field{height:310px;margin:20px 0 15px}
 .system-node{width:118px;min-height:46px;padding:10px 6px;font-size:12px}
 .system-node-infra{left:23.8889%;top:20%}
 .system-node-platform{left:76.1111%;top:20%}
 .system-node-security{left:23.8889%;top:51.9048%}
 .system-node-automation{left:76.1111%;top:51.9048%}
 .system-node-ai{left:23.8889%;top:81.9048%}
 .system-node-operate{left:76.1111%;top:81.9048%;width:124px;min-height:66px}
 .model-feedback{left:auto;right:8%;top:-7px;bottom:auto;font-size:12px}
 .system-notes .system-path::before{display:none}
 .model-detail{display:block;min-height:178px;padding:18px 0}
 .model-detail h3{font-size:21px}
 .model-detail p{font-size:14px;margin:9px 0 12px}
 .model-detail a{font-size:13px}
}

/* A shared editorial margin for the engineering decision behind each stage. */
.system-notes .system-path h3 a[aria-pressed]{text-decoration-color:transparent;transition:text-decoration-color 140ms ease-out}
.system-notes .system-path h3 a[aria-pressed="true"]{text-decoration-color:currentColor;text-decoration-thickness:2px}
.system-notes .system-path article:has([aria-pressed="true"]) h3::before{background:currentColor}
.system-notes a:focus-visible{outline:2px solid currentColor;outline-offset:5px}
.system-annotations{margin:36px 0 22px;min-height:190px;max-width:760px}
.system-annotation{scroll-margin-top:100px}
.system-annotation:not([hidden])~.system-annotation:not([hidden]){margin-top:32px}
.system-annotation .annotation-stage{font-size:13px;margin:0 0 14px;color:var(--muted)}
.system-annotation h3{font-size:clamp(24px,3vw,34px);line-height:1.2;letter-spacing:-.025em;font-weight:500;margin:0 0 14px}
.system-annotation p{font-size:16px;line-height:1.65;max-width:68ch;margin:0;color:var(--muted)}
.system-model-link{font-size:13px;text-decoration:underline;text-underline-offset:4px}