@charset "UTF-8";
/* Generative Z foundation, loaded on every page: tokens, base elements, header, footer, blog and article.
   Components live in home.css. Rationale and usage: docs/design-system.md. */
:root{
  --blue:#0B3BAA;--blue-hover:#082D82;--blue-50:#EEF3FF;--blue-100:#DCE5FA;--blue-300:#9DB4EC;
  --yellow:#FFD200;--yellow-50:#FFF8D1;--yellow-ink:#3B3000;
  --ink:#0A0A0A;--ink-hover:#2A2D33;--text:#172033;--muted:#526078;--subtle:#5F697C;
  --white:#FFFFFF;--paper:#F5F7FB;--sheet:#FAFAFB;
  --line:#DCE2EB;--line-strong:#C5CBD5;--control-line:#77849A;--grid-line:rgb(10 10 10 / 5%);
  --on-ink:#F3F4F6;--on-ink-muted:#B3BAC6;--ink-line:#30343C;
  --success:#11704F;--success-50:#ECF7F2;--danger:#B42318;--danger-50:#FDF0EF;

  --font-body:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular","Cascadia Mono",Consolas,monospace;
  --fs-display:clamp(2.6rem,1.5rem + 4.4vw,5rem);
  --fs-h1:clamp(2.25rem,1.55rem + 2.9vw,3.75rem);
  --fs-h2:clamp(1.85rem,1.35rem + 2vw,2.875rem);
  --fs-h3:clamp(1.0625rem,1rem + .3vw,1.25rem);
  --fs-lead:clamp(1.0625rem,1rem + .3vw,1.2rem);
  --fs-small:.875rem;--fs-label:.8125rem;--fs-micro:.75rem;

  --s-1:.25rem;--s-2:.5rem;--s-3:.75rem;--s-4:1rem;--s-5:1.5rem;--s-6:2rem;--s-7:3rem;--s-8:4rem;--s-9:6rem;
  --section-space:clamp(4.5rem,3rem + 5vw,8rem);
  --container:1160px;--gutter:24px;--header-h:72px;

  --radius-control:8px;--radius-panel:12px;--radius-sheet:4px;
  --shadow-soft:0 1px 2px rgb(10 10 10 / 4%),0 8px 24px rgb(10 10 10 / 5%);
  --shadow-lift:0 2px 4px rgb(10 10 10 / 5%),0 16px 40px rgb(10 10 10 / 9%);
  --focus:3px solid var(--blue);
  --ease-out:cubic-bezier(.22,1,.36,1);--motion-micro:160ms;--motion-normal:260ms;
  --grid-paper:linear-gradient(var(--grid-line) 1px,transparent 1px) 0 0 / 24px 24px,linear-gradient(90deg,var(--grid-line) 1px,transparent 1px) 0 0 / 24px 24px;
}
@media(max-width:540px){:root{--gutter:16px;--header-h:64px}}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 1rem);-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;background:var(--white);color:var(--text);font:1rem/1.65 var(--font-body);-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
h1,h2,h3,h4{margin:0 0 .6em;color:var(--text-primary);line-height:1.15;letter-spacing:-.025em;overflow-wrap:break-word;text-wrap:balance}
h1{font-size:var(--fs-h1);font-weight:760;line-height:1.06;letter-spacing:-.045em}
h2{font-size:var(--fs-h2);font-weight:740;line-height:1.1;letter-spacing:-.04em}
h3{font-size:var(--fs-h3);font-weight:660;line-height:1.3}
h4{font-size:1rem;font-weight:650}
p{margin:0 0 1em}
a{color:var(--text-link);text-decoration-thickness:1px;text-underline-offset:.2em}
a:hover{color:var(--text-link-hover);text-decoration-thickness:2px}
:where(a,button,input,select,textarea,summary,[tabindex]):focus-visible{outline:var(--focus);outline-offset:4px;border-radius:2px}
::selection{background:var(--yellow);color:var(--ink)}
.shell{width:min(var(--container),calc(100% - 2 * var(--gutter)));margin-inline:auto}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.skip-link{position:absolute;left:1rem;top:-6rem;z-index:60;padding:.75rem 1rem;background:var(--surface-band);color:var(--white);border-radius:var(--radius-control);font-weight:600}
.skip-link:focus{top:.75rem;color:var(--white)}
/* A small square "port" marks labels: the connection handle of a workflow node. */
.eyebrow{display:flex;align-items:flex-start;gap:.6rem;margin:0 0 var(--s-4);color:var(--text-link);font-size:var(--fs-label);font-weight:650;line-height:1.4}
.eyebrow::before{content:"";flex:none;width:8px;height:8px;margin-top:.4em;border:1.5px solid currentColor;border-radius:1px}
.intro{max-width:60ch;color:var(--muted);font-size:var(--fs-lead);line-height:1.6}

/* Header: identical on every page and persistent during page transitions. */
.site-header{position:sticky;top:0;z-index:40;background:var(--surface-raised);border-bottom:1px solid var(--line);transition:box-shadow var(--motion-normal)}
.site-header.is-scrolled{box-shadow:0 10px 30px rgb(10 10 10 / 6%)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:var(--s-5);min-height:var(--header-h)}
.brand{display:inline-flex;align-items:center;gap:.6rem;min-height:44px;color:var(--text-primary);font-size:1.125rem;font-weight:750;letter-spacing:-.03em;white-space:nowrap;text-decoration:none}
.brand:hover{color:var(--text-primary)}
.brand img{width:32px;height:32px;object-fit:contain}
.brand strong{color:var(--text-link);font-weight:800}
.pilot-desktop-nav{display:flex;align-items:center;gap:.25rem}
.pilot-desktop-nav a,.home-menu nav a{position:relative;display:inline-flex;align-items:center;min-height:44px;padding:0 .8rem;border-radius:var(--radius-control);color:var(--text);font-size:.9375rem;font-weight:560;text-decoration:none}
.pilot-desktop-nav a:not(.contact-link)::after{content:"";position:absolute;left:.8rem;right:.8rem;bottom:8px;height:2px;background:var(--blue);transform:scaleX(0);transform-origin:left;transition:transform var(--motion-normal) var(--ease-out)}
.pilot-desktop-nav a:hover,.pilot-desktop-nav a[aria-current]{color:var(--text-primary)}
.pilot-desktop-nav a:hover::after,.pilot-desktop-nav a[aria-current]::after{transform:scaleX(1)}
.pilot-desktop-nav .contact-link{margin-left:.5rem;padding:0 1.1rem;background:var(--blue);color:var(--white)}
.pilot-desktop-nav .contact-link:hover,.pilot-desktop-nav .contact-link[aria-current]{background:var(--blue-hover);color:var(--white)}
.home-menu{display:none;position:relative}
.home-menu summary{display:flex;align-items:center;gap:.7rem;min-height:44px;padding:0 .9rem;border:1px solid var(--line-strong);border-radius:var(--radius-control);font-size:.9375rem;font-weight:600;list-style:none;cursor:pointer}
.home-menu summary::-webkit-details-marker{display:none}
.home-menu summary:hover{border-color:var(--border-strong)}
.menu-lines{position:relative;width:16px;height:11px;border-block:1.5px solid}
.menu-lines::after{content:"";position:absolute;left:0;right:0;top:3.25px;border-top:1.5px solid}
.home-menu[open] summary{background:var(--surface-band);border-color:var(--border-strong);color:var(--white)}
.home-menu nav{position:absolute;top:calc(100% + .75rem);right:0;z-index:41;display:flex;flex-direction:column;gap:2px;width:min(300px,calc(100vw - 2 * var(--gutter)));padding:.5rem;background:var(--surface-raised);border:1px solid var(--border-strong);border-radius:var(--radius-panel);box-shadow:var(--shadow-lift)}
.home-menu nav a{justify-content:space-between}
.home-menu nav a:hover{background:var(--paper)}
.home-menu nav a[aria-current]{background:var(--blue-50);color:var(--text-link)}
.home-menu nav .contact-link{margin-top:.25rem;background:var(--blue);color:var(--white)}
@media(max-width:760px){.pilot-desktop-nav{display:none}.home-menu{display:block}}
@media(max-width:540px){.brand{font-size:1.0625rem}.brand img{width:28px;height:28px}}

/* Footer */
.site-footer{background:var(--surface-band);color:var(--on-ink-muted)}
.footer-inner{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.8fr);gap:var(--s-7);padding-block:var(--s-8) var(--s-7)}
.site-footer .brand{color:var(--white)}
.site-footer .brand strong{color:var(--yellow)}
.footer-brand p{max-width:34ch;margin:var(--s-4) 0 0;font-size:var(--fs-small)}
.footer-nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--s-6)}
.footer-label{margin:0 0 var(--s-2);color:var(--white);font-size:var(--fs-small);font-weight:650}
.footer-nav ul{margin:0;padding:0;list-style:none}
.footer-nav a{display:inline-flex;align-items:center;min-height:44px;color:var(--on-ink-muted);font-size:var(--fs-small);text-decoration:none;overflow-wrap:anywhere}
.footer-nav a:hover,.footer-nav a[aria-current]{color:var(--white);text-decoration:underline}
.site-footer :focus-visible{outline-color:var(--yellow)}
.footer-base{padding-block:var(--s-5);border-top:1px solid var(--ink-line);font-size:var(--fs-micro)}
.footer-base p{margin:0}
@media(max-width:900px){.footer-inner{grid-template-columns:1fr}}
@media(max-width:540px){.footer-nav{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* Section headings and editorial article cards (home insights and blog index). */
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--s-5);margin-bottom:var(--s-7)}
.section-heading h2{margin:0}
.section-heading>a{display:inline-flex;flex:none;align-items:center;min-height:44px;font-size:var(--fs-small);font-weight:600}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--s-7) var(--s-5)}
.card{position:relative;display:flex;flex-direction:column;min-width:0}
.card:first-child{grid-column:1 / -1;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:var(--s-7);align-items:center;padding-bottom:var(--s-7);border-bottom:1px solid var(--line)}
.card-image{display:block;overflow:hidden;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-panel)}
.card-image img{width:100%;aspect-ratio:16 / 9;object-fit:cover;transition:transform .6s var(--ease-out)}
.card-body{display:flex;flex:1;flex-direction:column;padding-top:var(--s-4)}
.card:first-child .card-body{padding:0}
.card .eyebrow{margin-bottom:var(--s-3);color:var(--subtle);font-size:var(--fs-micro)}
.card h3{margin:0 0 .5rem;font-size:1.1875rem;line-height:1.3}
.card:first-child h3{font-size:clamp(1.5rem,1.15rem + 1.3vw,2.125rem);line-height:1.12;letter-spacing:-.035em}
.card h3 a{color:var(--text-primary);text-decoration:none}
.card h3 a::after{content:"";position:absolute;inset:0}
.card p:not(.eyebrow){margin:0 0 var(--s-4);color:var(--muted);font-size:var(--fs-small)}
.card:first-child p:not(.eyebrow){font-size:1rem}
.card-arrow{margin-top:auto;color:var(--text-link);font-size:1.25rem;line-height:1;transition:transform var(--motion-normal) var(--ease-out)}
.card:hover h3 a,.card:focus-within h3 a{color:var(--text-link)}
.card:focus-within .card-image{border-color:var(--text-link)}
.card-image{transition:transform .3s var(--ease-out),box-shadow .3s var(--ease-out),border-color .3s}
@media(hover:hover) and (prefers-reduced-motion:no-preference){.card:hover .card-image{transform:translateY(-3px);box-shadow:var(--shadow-lift)}.card:hover .card-image img{transform:scale(1.03)}.card:hover .card-arrow{transform:translate(3px,-3px)}}
@media(max-width:900px){.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.card:first-child{grid-template-columns:1fr;gap:var(--s-4)}}
@media(max-width:760px){.section-heading{flex-direction:column;align-items:flex-start;gap:var(--s-3)}}
@media(max-width:540px){.cards{grid-template-columns:1fr;gap:var(--s-6)}}

/* Blog index */
.blog-hero{padding-block:var(--s-8) var(--s-7)}
.blog-hero h1{max-width:15ch;margin:0 0 var(--s-5);font-size:var(--fs-display);line-height:1;letter-spacing:-.055em}
.blog-hero h1 span{color:inherit}
.text-link{display:inline-flex;align-items:center;min-height:44px;margin-top:var(--s-3);font-weight:600}
.article-list{padding-bottom:var(--section-space)}
.article-list .section-heading{padding-top:var(--s-5);border-top:1px solid var(--border-strong)}

/* Article */
.article-hero{padding-block:var(--s-6) var(--s-5)}
.back-link{display:inline-flex;align-items:center;min-height:44px;font-size:var(--fs-small);font-weight:600}
.article-hero .eyebrow{margin-top:var(--s-5)}
.article-hero h1{max-width:22ch;margin:.5rem 0 var(--s-5)}
.article-hero .intro{max-width:64ch}
.article-hero time{color:var(--subtle);font-size:var(--fs-small)}
.cover{width:100%;margin-top:var(--s-6);aspect-ratio:16 / 9;object-fit:contain;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-panel)}
.article-layout{display:grid;grid-template-columns:240px minmax(0,720px);justify-content:space-between;gap:var(--s-8);align-items:start;padding-block:var(--s-6) var(--s-8)}
.toc{position:sticky;top:calc(var(--header-h) + 1.5rem);max-height:calc(100vh - var(--header-h) - 3rem);overflow:auto;padding-top:var(--s-4);border-top:2px solid var(--border-strong)}
.toc nav{display:block}
.toc h2{margin:0 0 var(--s-2);font-size:var(--fs-label);letter-spacing:0}
.toc ol{margin:0;padding:0;list-style:none;counter-reset:toc}
.toc li{counter-increment:toc}
.toc a{display:grid;grid-template-columns:2rem minmax(0,1fr);padding:.5rem 0;border-bottom:1px solid var(--line);color:var(--muted);font-size:var(--fs-small);line-height:1.4;text-decoration:none}
.toc a::before{content:counter(toc,decimal-leading-zero);padding-top:.15em;color:var(--subtle);font:var(--fs-micro) var(--font-mono)}
.toc a:hover,.toc a:focus-visible{color:var(--text-link)}
.prose{min-width:0;color:var(--text);font-size:1.0625rem;line-height:1.75;overflow-wrap:anywhere}
.prose h2{margin:2.75rem 0 1rem;font-size:clamp(1.5rem,1.25rem + 1vw,1.875rem);line-height:1.2;letter-spacing:-.03em}
.prose h2:first-of-type{margin-top:0}
.prose h3{margin:2rem 0 .75rem;font-size:1.25rem}
.prose li{margin:.4rem 0}
.prose pre{padding:1.25rem;white-space:pre-wrap;background:var(--paper);border:1px solid var(--line);border-left:3px solid var(--text-link);border-radius:var(--radius-control);font:.875rem/1.6 var(--font-mono)}
.prose code{font-family:var(--font-mono);font-size:.92em}
.prose blockquote{margin:1.5rem 0;padding:.25rem 0 .25rem 1.25rem;border-left:3px solid var(--yellow);color:var(--muted)}
.prose table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;font-size:.9375rem}
.prose :is(th,td){padding:.6rem .75rem;border-bottom:1px solid var(--line);text-align:left}
.prose img{border-radius:var(--radius-panel)}
.prose p:has(>span[id]:only-child){margin:0;scroll-margin-top:calc(var(--header-h) + 1rem)}
.article-end{display:flex;flex-wrap:wrap;gap:var(--s-2) var(--s-6);padding-block:var(--s-5) var(--s-8);border-top:1px solid var(--line)}
.article-end a{display:inline-flex;align-items:center;min-height:44px;font-weight:600}
@media(max-width:900px){.article-layout{grid-template-columns:1fr;gap:var(--s-6)}.toc{position:static;max-height:none;padding:var(--s-4) var(--s-5);background:var(--paper);border-top:0;border-radius:var(--radius-panel)}}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}
@media print{.site-header{position:static}.home-menu,.skip-link{display:none}}