/* HUB LLC design system.
   Direction: graphite monochrome on cool paper, one blueprint-cobalt accent.
   Deliberately excluded per brand brief: gradient washes, glow, glassmorphism,
   pill/rounded-card styling. Structure is carried by rules, grid and type.
   Layers: tokens -> base -> type -> layout -> components -> motion -> responsive. */

/* ---------- 1. Tokens ---------- */
:root{
  color-scheme:light;
  --bg:#f3f4f6;
  --surface:#fff;
  --surface-2:#e9ebef;
  --surface-3:#dcdfe5;
  --ink:#101215;
  --ink-2:#343a43;
  --muted:#5c646f;
  --line:#d3d7dd;
  --line-strong:#aeb5bf;
  --accent:#1746c4;
  --accent-ink:#12389f;
  --accent-soft:#e6ebf9;
  --accent-on:#fff;
  --shadow-1:0 1px 2px rgba(16,18,21,.06);
  --shadow-2:0 1px 3px rgba(16,18,21,.07),0 8px 18px -10px rgba(16,18,21,.14);
  --r-xs:2px;--r-sm:3px;--r-md:4px;
  --sans:system-ui,-apple-system,"Segoe UI Variable Text","Segoe UI",Inter,Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
  --header-h:70px;
}
:root[data-theme=dark]{
  color-scheme:dark;
  --bg:#0d0f12;
  --surface:#15181d;
  --surface-2:#1c2026;
  --surface-3:#252a32;
  --ink:#eceef1;
  --ink-2:#b4bbc5;
  --muted:#8b939f;
  --line:#262b33;
  --line-strong:#3a414b;
  --accent:#7ea0ff;
  --accent-ink:#a2bbff;
  --accent-soft:#16203a;
  --accent-on:#0a1020;
  --shadow-1:0 1px 2px rgba(0,0,0,.5);
  --shadow-2:0 1px 3px rgba(0,0,0,.5),0 8px 18px -10px rgba(0,0,0,.7);
}
/* Inverted blocks re-declare tokens so they stay dark under either theme. */
.dark{
  --bg:#0d0f12;
  --surface:#15181d;
  --surface-2:#1c2026;
  --surface-3:#252a32;
  --ink:#eceef1;
  --ink-2:#b4bbc5;
  --muted:#98a1ad;
  --line:#262b33;
  --line-strong:#3c434e;
  --accent:#8fa9ff;
  --accent-ink:#aec2ff;
  --accent-soft:#16203a;
  --accent-on:#0a1020;
  background:#0d0f12;color:#eceef1;
}

/* ---------- 2. Base ---------- */
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 20px);-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:1.125rem;line-height:1.65;
  font-feature-settings:"kern" 1,"liga" 1;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
img,svg,video{max-width:100%;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
button,summary{cursor:pointer}
a{color:inherit;text-underline-offset:4px;text-decoration-thickness:1px}
a:hover{color:var(--accent)}
*:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
button,a,input,select,textarea,summary{-webkit-tap-highlight-color:transparent}
::selection{background:var(--accent);color:var(--accent-on)}
[hidden]{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:fixed;top:-100px;left:16px;background:var(--ink);color:var(--bg);padding:12px 16px;z-index:60;text-decoration:none}
.skip:focus{top:12px}

/* ---------- 3. Typography ---------- */
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{line-height:1.1;font-weight:600;letter-spacing:-.022em;text-wrap:balance}
h1{font-size:clamp(2.6rem,1.6rem + 4vw,4.5rem);letter-spacing:-.032em;font-weight:620}
h2{font-size:clamp(2rem,1.45rem + 2.4vw,3rem);letter-spacing:-.028em}
h3{font-size:1.375rem}
p{max-width:70ch;text-wrap:pretty}
p+p{margin-top:1em}
ul,ol{padding-left:1.25em}
li+li{margin-top:.4em}
strong{font-weight:620}
.muted{color:var(--muted)}
.accent{color:var(--accent)}
.lede{font-size:clamp(1.1875rem,1.1rem + .45vw,1.45rem);line-height:1.55;color:var(--ink-2);max-width:54ch}

/* Mono labels. The marker is a small square tick, drawn like a scale mark. */
.eyebrow,.micro{font-family:var(--mono);font-size:.875rem;letter-spacing:.09em;text-transform:uppercase;line-height:1.5;font-weight:500}
.eyebrow{display:flex;gap:10px;align-items:baseline;margin-bottom:20px;color:var(--muted)}
.eyebrow:before{content:"";flex:none;width:10px;height:2px;background:var(--accent);transform:translateY(-4px)}
.micro{color:var(--muted)}

/* ---------- 4. Layout ---------- */
.wrap{width:min(1240px,100% - 80px);margin-inline:auto}
.section{padding:clamp(56px,7vw,100px) 0}
.rule-top{border-top:1px solid var(--line)}
.section-heading{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);align-items:end;gap:clamp(28px,4vw,64px);margin-bottom:clamp(32px,4vw,50px)}
.section-heading p{font-size:1.0625rem;color:var(--muted);max-width:44ch}
.split{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(32px,5vw,72px);align-items:start}
.split>div>h2+p{margin-top:20px}
.nowrap{white-space:nowrap}
.detail-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr);gap:clamp(32px,5vw,68px)}
.detail-main>p{font-size:1.1875rem;color:var(--ink-2)}

/* ---------- 5. Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:var(--bg);border-bottom:1px solid transparent;transition:border-color .2s,box-shadow .2s}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:var(--shadow-1)}
.nav{min-height:var(--header-h);display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;text-decoration:none;flex:none}
.brand img{width:112px;height:30px;display:block}
/* Versioned asset URLs are cached for a year: bump ?v= whenever logo-dark.svg changes. */
:root[data-theme=dark] .brand img,:root[data-theme=dark] .footer-logo{content:url("/assets/brand/logo-dark.svg?v=20260912b")}
.nav-right{display:flex;align-items:center;gap:8px}
.desktop-nav{display:flex;align-items:center;gap:2px;font-size:1.0625rem}
.desktop-nav a{position:relative;text-decoration:none;padding:9px 12px;color:var(--ink-2);transition:color .16s}
.desktop-nav a:hover{color:var(--ink)}
.desktop-nav a:after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:1.5px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease)}
.desktop-nav a:hover:after{transform:scaleX(1)}
.desktop-nav a[aria-current=page]{color:var(--ink);font-weight:560}
.desktop-nav a[aria-current=page]:after{transform:scaleX(1)}
.nav-contact{margin-left:12px;background:var(--ink);color:var(--bg)!important;padding:10px 16px!important;font-weight:560;white-space:nowrap;border-radius:var(--r-sm)}
.nav-contact:after{display:none!important}
.nav-contact:hover{background:var(--accent);color:var(--accent-on)!important}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--line);background:transparent;border-radius:var(--r-sm);color:var(--ink-2);transition:background-color .16s,color .16s,border-color .16s}
.icon-btn:hover{background:var(--surface-2);color:var(--ink);border-color:var(--line-strong)}
.icon-btn svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.theme-toggle .moon{display:none}
:root[data-theme=dark] .theme-toggle .sun{display:none}
:root[data-theme=dark] .theme-toggle .moon{display:block}
/* details/summary so the menu still opens with scripting disabled. */
.mobile-nav{display:none}
.mobile-nav>summary{list-style:none}
.mobile-nav>summary::-webkit-details-marker{display:none}
.mobile-nav[open]>summary{background:var(--surface-2);color:var(--ink);border-color:var(--line-strong)}
.mobile-panel{position:fixed;inset:var(--header-h) 0 0;background:var(--bg);z-index:45;padding:8px 0 40px;overflow-y:auto;animation:fade-up .2s var(--ease)}
.mobile-panel nav{display:flex;flex-direction:column}
.mobile-panel a{padding:18px 0;font-size:1.25rem;font-weight:560;text-decoration:none;border-bottom:1px solid var(--line)}
.mobile-panel .nav-contact{margin:26px 0 0;align-self:start;padding:13px 22px!important;font-size:1rem;border-bottom:0}
body.nav-open{overflow:hidden}

/* ---------- 6. Buttons and links ---------- */
.button{
  display:inline-flex;align-items:center;gap:14px;justify-content:space-between;
  background:var(--ink);color:var(--bg);border:1px solid var(--ink);
  padding:14px 24px;border-radius:var(--r-sm);
  font-size:1.0625rem;font-weight:560;line-height:1.3;min-height:52px;
  text-decoration:none;
  transition:background-color .18s,border-color .18s,color .18s;
}
.button:hover{background:var(--accent);border-color:var(--accent);color:var(--accent-on)}
.button .arrow{transition:transform .18s var(--ease)}
.button:hover .arrow{transform:translate(2px,-2px)}
.button.light{background:var(--surface);border-color:var(--surface);color:var(--ink)}
.button.light:hover{background:var(--accent);border-color:var(--accent);color:var(--accent-on)}
.button.ghost{background:transparent;color:var(--ink);border-color:var(--line-strong)}
.button.ghost:hover{background:var(--ink);border-color:var(--ink);color:var(--bg)}
.actions{display:flex;align-items:center;gap:12px 24px;flex-wrap:wrap;margin-top:28px}
.text-link{display:inline-flex;align-items:center;gap:7px;font-size:1.0625rem;font-weight:540;color:var(--accent);text-decoration:none;border-bottom:1px solid color-mix(in srgb,var(--accent) 32%,transparent);padding-bottom:2px;transition:border-color .16s,gap .16s var(--ease)}
.text-link:hover{border-bottom-color:var(--accent);gap:11px}
.arrow{font-size:1.05em;line-height:1;display:inline-block}

/* ---------- 7. Hero ---------- */
/* The backdrop is a blueprint grid: flat 1px rules, no wash, no glow. */
.hero{position:relative;padding:clamp(44px,5.5vw,80px) 0 clamp(36px,4vw,56px);overflow:hidden}
.hero:before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.42;
  background-image:linear-gradient(to right,var(--line) 1px,transparent 1px),linear-gradient(to bottom,var(--line) 1px,transparent 1px);
  background-size:76px 76px;background-position:center top;
  -webkit-mask-image:linear-gradient(to bottom,#000,transparent 82%);
  mask-image:linear-gradient(to bottom,#000,transparent 82%);
}
.hero>*{position:relative}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:clamp(32px,4.5vw,64px);align-items:center}
.hero h1{max-width:15ch}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-copy{font-size:clamp(1.125rem,1.05rem + .4vw,1.3rem);line-height:1.6;color:var(--ink-2);max-width:44ch;margin-top:24px}
.hero .actions{margin-top:30px}
/* Verified company facts only. No invented metrics or client marks. */
.hero-trust{display:flex;flex-wrap:wrap;gap:6px 28px;margin-top:34px;padding-top:14px;border-top:1px solid var(--line)}
.chip{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:.875rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.chip:before{content:"";width:6px;height:6px;background:var(--accent);flex:none}

/* Engineering model panel. A technical diagram, not decoration. */
.engineering-figure{margin:0;background:var(--surface);border:1px solid var(--line);font-family:var(--mono);box-shadow:var(--shadow-2)}
.figure-head{display:flex;justify-content:space-between;align-items:center;gap:14px;font-size:.8125rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding:14px 18px;border-bottom:1px solid var(--line)}
.figure-head span{display:flex;align-items:center;gap:8px}
.figure-graphic{position:relative;padding:24px 20px}
.flow-node{position:relative;background:var(--surface);border:1px solid var(--line-strong);padding:15px 17px;font-size:.9375rem;display:flex;justify-content:space-between;align-items:center;gap:12px}
.flow-node+.flow-node,.flow-node+.agent-lines,.agent-lines+.flow-node{margin-top:28px}
.flow-node+.flow-node:before,.flow-node+.agent-lines:before,.agent-lines+.flow-node:before{content:"";position:absolute;bottom:100%;left:24px;height:28px;width:1px;background:var(--line-strong)}
.flow-node.engineer{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.flow-node.engineer .flow-sub{color:color-mix(in srgb,var(--bg) 72%,var(--ink))}
.flow-node.agents{border-color:var(--accent);border-left-width:3px;color:var(--accent-ink)}
.dark .flow-node.agents{color:var(--accent)}
.flow-sub{display:block;font-size:.8125rem;color:var(--muted);margin-top:3px;letter-spacing:.02em}
.agent-lines{position:relative;border:1px dashed var(--line-strong);padding:12px 14px;font-size:.8125rem;text-align:center;color:var(--muted)}
.figure-caption{display:flex;justify-content:space-between;gap:12px;font-size:.8125rem;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);padding:14px 18px;border-top:1px solid var(--line)}

/* ---------- 8. Fact strip ---------- */
.facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid var(--ink);border-bottom:1px solid var(--line)}
.fact{padding:24px 28px 24px 0;border-right:1px solid var(--line)}
.fact:last-child{border-right:0}
.fact strong{display:block;font-size:1.25rem;font-weight:600;letter-spacing:-.015em;line-height:1.3;margin-bottom:5px}
.fact span{display:block;color:var(--muted);font-size:.9375rem;line-height:1.5}

/* ---------- 9. Service list ---------- */
.service-list{border-top:1px solid var(--ink)}
.service-row{position:relative;display:grid;grid-template-columns:52px minmax(0,1.05fr) minmax(0,1fr) 28px;gap:24px;align-items:center;padding:26px 16px 26px 0;border-bottom:1px solid var(--line);text-decoration:none;transition:background-color .2s,padding-left .2s var(--ease)}
.service-row:before{content:"";position:absolute;left:0;top:-1px;bottom:-1px;width:2px;background:var(--accent);transform:scaleY(0);transform-origin:top;transition:transform .24s var(--ease)}
.service-row:hover,.service-row:focus-visible{background:var(--surface);padding-left:18px}
.service-row:hover:before,.service-row:focus-visible:before{transform:scaleY(1)}
.service-row .number{font-family:var(--mono);font-size:.875rem;color:var(--muted);letter-spacing:.08em}
.service-row h3{font-size:1.625rem;letter-spacing:-.022em}
.service-row:hover h3{color:var(--accent)}
.service-row p{font-size:1rem;color:var(--muted);max-width:42ch}
.service-row .arrow{justify-self:end;color:var(--muted);transition:transform .2s var(--ease),color .2s}
.service-row:hover .arrow{transform:translate(3px,-3px);color:var(--accent)}

/* ---------- 10. Process ---------- */
.method-intro{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:clamp(32px,5vw,80px)}
.method-intro p{font-size:1.1875rem;color:var(--ink-2)}
.method-intro .text-link{margin-top:22px}
.process{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));margin:clamp(36px,4vw,56px) 0 0;padding:0;list-style:none}
.process li{position:relative;padding:26px 22px 0 0;margin:0;border-top:1px solid var(--line)}
.process li:before{content:"";position:absolute;top:-1px;left:0;width:0;height:1px;background:var(--accent);transition:width .55s var(--ease)}
.process li.is-visible:before{width:100%}
.process .micro{display:block;margin-bottom:18px;color:var(--accent)}
.process h3{font-size:1.25rem;margin-bottom:10px}
.process p{font-size:.9375rem;color:var(--muted);line-height:1.55}

/* ---------- 11. Steps ---------- */
.steps{list-style:none;padding:0;margin:0}
.steps li{display:grid;grid-template-columns:32px 1fr;gap:18px;align-items:start;padding:18px 0;border-bottom:1px solid var(--line)}
.steps li:first-child{padding-top:0}
.steps .micro{color:var(--accent);padding-top:4px}
.steps strong{display:block;font-size:1.25rem;font-weight:600;letter-spacing:-.015em}
.steps p{font-size:1rem;color:var(--muted);margin-top:5px}

/* ---------- 12. Comparison: generated vs engineered ---------- */
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border:1px solid var(--line);border-top:1px solid var(--ink)}
.compare-col{padding:clamp(26px,3vw,38px)}
.compare-col+.compare-col{border-left:1px solid var(--line)}
.compare-col h3{font-size:1.375rem;margin-bottom:8px}
.compare-col>.micro{display:block;margin-bottom:16px}
.compare-col.is-gap{background:var(--surface-2)}
.compare-col.is-hub{background:var(--surface)}
.compare-col.is-hub .micro{color:var(--accent)}
.compare-list{list-style:none;padding:0;margin:18px 0 0;font-size:1rem}
.compare-list li{position:relative;padding:11px 0 11px 28px;border-top:1px solid var(--line);color:var(--ink-2)}
.compare-list li:before{position:absolute;left:0;top:9px;font-family:var(--mono);font-size:12px;line-height:1.5}
.is-gap .compare-list li:before{content:"\2715";color:var(--muted)}
.is-hub .compare-list li:before{content:"\2713";color:var(--accent)}

/* ---------- 13. Two-column feature ---------- */
.two-column{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.feature{padding:clamp(34px,4vw,54px) clamp(28px,3.5vw,48px) clamp(34px,4vw,54px) 0}
.feature+.feature{border-left:1px solid var(--line);padding-left:clamp(28px,3.5vw,48px);padding-right:0}
.feature h2{font-size:clamp(1.75rem,1.4rem + 1.5vw,2.375rem)}
.feature p{font-size:1.0625rem;color:var(--muted);margin-top:20px}
.feature .text-link{margin-top:24px}
.feature .micro{display:block;margin-bottom:18px}
.magento-word{font-size:clamp(1.875rem,1.5rem + 1.6vw,2.5rem);letter-spacing:-.035em;font-weight:680;margin-bottom:12px}

/* ---------- 14. Journal cards ---------- */
.journal-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(20px,2.4vw,32px)}
.journal-card{display:flex;flex-direction:column;text-decoration:none;border-top:1px solid var(--ink);padding:20px 0 8px;transition:border-color .2s}
.journal-card .micro{margin-bottom:20px;color:var(--accent)}
.journal-card h2,.journal-card h3{font-size:1.375rem;line-height:1.3;letter-spacing:-.022em;margin-bottom:12px}
.journal-card:hover h2,.journal-card:hover h3{color:var(--accent)}
.journal-card p{font-size:1rem;color:var(--muted);margin-bottom:22px;line-height:1.6}
.journal-card .read{display:inline-flex;align-items:center;gap:6px;font-size:.9375rem;font-weight:540;color:var(--accent);margin-top:auto;transition:gap .16s var(--ease)}
.journal-card:hover .read{gap:10px}
.journal-index{row-gap:clamp(22px,2.6vw,34px)}

/* ---------- 15. Contact band ---------- */
.contact-band{background:var(--ink);color:var(--bg);padding:clamp(48px,6vw,78px) 0}
.contact-band .wrap{display:flex;justify-content:space-between;align-items:center;gap:36px;flex-wrap:wrap}
.contact-band h2{max-width:18ch}
.contact-band p{font-size:1.0625rem;margin-top:16px;color:color-mix(in srgb,var(--bg) 80%,var(--ink));max-width:50ch}

/* ---------- 16. Footer ---------- */
.site-footer{padding:clamp(40px,5vw,64px) 0 28px;border-top:1px solid var(--line)}
.footer-top{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:40px;align-items:start}
.footer-logo{width:101px;height:27px}
/* Block-level so the logo link is as tall as the logo (27px), above the 24px minimum target size. */
.footer-top a:has(.footer-logo){display:inline-block}
.footer-top p{font-size:.9375rem;color:var(--muted);margin-top:16px}
.footer-links{display:flex;gap:12px 32px;font-size:1rem;flex-wrap:wrap;align-content:start}
.footer-links a{text-decoration:none;color:var(--muted)}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{display:flex;justify-content:space-between;gap:16px 30px;flex-wrap:wrap;margin-top:40px;padding-top:22px;border-top:1px solid var(--line);font-size:.9375rem;color:var(--muted)}
.footer-bottom div{display:flex;gap:22px}
.footer-bottom a{text-decoration:none}

/* ---------- 17. Page hero and detail pages ---------- */
.page-hero{padding:clamp(34px,4.5vw,58px) 0 clamp(34px,4.5vw,54px);border-bottom:1px solid var(--line)}
.page-hero h1{max-width:17ch}
.page-hero .lede{margin-top:22px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:.9375rem;color:var(--muted);margin-bottom:28px;font-family:var(--mono);letter-spacing:.04em}
.breadcrumb a{text-decoration:none}
.breadcrumb a:hover{color:var(--accent)}
.deliverables{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(20px,2.5vw,32px);margin-top:32px}
.deliverables>div{border-top:2px solid var(--line);padding-top:18px;transition:border-color .2s}
.deliverables>div:hover{border-top-color:var(--accent)}
.deliverables h3{font-size:1.25rem;margin-bottom:12px}
.deliverables p{font-size:1rem;color:var(--muted)}
.callout{padding:22px 24px;background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent);margin-top:30px}
.callout p{font-size:1.0625rem}

/* ---------- 18. FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-list details{border-bottom:1px solid var(--line)}
.faq-list summary{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;font-size:1.25rem;font-weight:560;line-height:1.45;padding:22px 0;list-style:none}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary:after{content:"";flex:none;width:10px;height:10px;margin-top:7px;border-right:1.7px solid var(--muted);border-bottom:1.7px solid var(--muted);transform:rotate(45deg);transition:transform .22s var(--ease),border-color .2s}
.faq-list details[open] summary:after{transform:rotate(-135deg);border-color:var(--accent)}
.faq-list summary:hover{color:var(--accent)}
.faq-list details p{font-size:1.0625rem;color:var(--muted);padding-bottom:24px;max-width:70ch}
.faq-list details[open] p{animation:fade-up .26s var(--ease)}

/* ---------- 19. Forms ---------- */
.contact-form{background:var(--surface);border:1px solid var(--line);border-top:2px solid var(--ink);padding:clamp(24px,3vw,34px);scroll-margin-top:calc(var(--header-h) + 16px)}
.contact-form h3{font-size:1.5rem;margin-bottom:10px}
.field{margin-bottom:18px}
.field label{display:block;font-size:.9375rem;font-weight:540;color:var(--ink-2);margin-bottom:7px}
.field input,.field textarea,.field select{display:block;width:100%;background:var(--bg);border:1px solid var(--line-strong);border-radius:var(--r-sm);padding:13px 15px;min-height:52px;transition:border-color .16s,box-shadow .16s,background-color .16s}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--accent);background:var(--surface);box-shadow:0 0 0 3px var(--accent-soft)}
.field textarea{min-height:150px;resize:vertical;line-height:1.55}
.form-note{font-size:.9375rem;color:var(--muted);margin:14px 0}
.status{font-size:1rem;margin-top:18px;color:var(--ink-2)}
.status:not(:empty){padding:12px 14px;background:var(--accent-soft);border-left:2px solid var(--accent);color:var(--accent-ink)}
.office-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;margin-top:28px;border-top:1px solid var(--line)}
.office-grid>div{padding:22px 24px 0 0;border-right:1px solid var(--line)}
.office-grid>div:last-child{border-right:0;padding-left:24px}
.office-grid h3{font-size:1.25rem;margin-bottom:12px}
.office-grid p{font-size:1rem;color:var(--muted)}
.office-grid a{color:var(--accent);text-decoration:none}

/* ---------- 20. Journal controls ---------- */
.journal-controls{display:flex;gap:18px;justify-content:space-between;align-items:end;margin-bottom:26px;flex-wrap:wrap}
.journal-controls label{font-size:.9375rem;font-weight:540;color:var(--ink-2);display:block;margin-bottom:6px}
.journal-controls input,.journal-controls select{border:1px solid var(--line-strong);background:var(--surface);border-radius:var(--r-sm);padding:12px 16px;min-height:52px;transition:border-color .16s,box-shadow .16s}
.journal-controls input:focus,.journal-controls select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.journal-controls input{width:min(340px,100%)}
.journal-count{font-size:.9375rem;color:var(--muted);margin-bottom:20px;font-family:var(--mono);letter-spacing:.06em;text-transform:uppercase}

/* ---------- 21. Prose and preserved article bodies ---------- */
.prose{max-width:min(780px,100%);margin-inline:auto;padding:clamp(36px,4vw,58px) 0 clamp(48px,5vw,72px);font-size:1.25rem;line-height:1.7}
.prose h2{font-size:2rem;margin:48px 0 18px}
.prose h3{font-size:1.5rem;margin:34px 0 14px}
.prose a,.legacy p a,.legacy li a{color:var(--accent)}
.prose .micro{display:block;color:var(--muted);margin-bottom:22px}
.prose table{border-collapse:collapse;width:100%;font-size:1rem}
.prose td,.prose th{padding:11px;border-bottom:1px solid var(--line);text-align:left}
.legacy{max-width:min(760px,100%);margin-inline:auto;padding:clamp(28px,3vw,44px) 0 clamp(48px,5vw,70px);font-size:1.1875rem;line-height:1.7}
.legacy .container{width:100%;margin:auto}
.legacy .hero{padding:16px 0 28px;border-bottom:1px solid var(--line);margin-bottom:32px}
.legacy .hero:before{display:none}
.legacy h1{font-size:clamp(2.25rem,1.6rem + 2.6vw,3.5rem);margin:18px 0 26px}
.legacy h2{font-size:clamp(1.75rem,1.4rem + 1.4vw,2.25rem);margin:42px 0 18px}
.legacy h3{font-size:1.5rem;margin:30px 0 12px}
.legacy p{margin:1.1em 0;color:var(--ink-2)}
.legacy section{padding:18px 0}
.legacy .eyebrow{color:var(--muted)}
.legacy .cards,.legacy .tips-grid,.legacy .steps-grid,.legacy .faq-grid{display:block}
.legacy article,.legacy .panel,.legacy .card,.legacy .tip-card,.legacy .faq-card,.legacy .step-card{border-top:1px solid var(--line);padding:16px 0;margin:18px 0}
.legacy .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:22px}
.legacy img{display:block;width:100%;max-height:420px;object-fit:cover;margin:24px 0}
.legacy picture{display:block}
.article-disclaimer{margin-top:44px;padding-top:18px;border-top:1px solid var(--line)}
.legacy .article-disclaimer p{margin:0;font-size:.9375rem;line-height:1.6;color:var(--muted)}
.legacy .contact-box,.legacy .highlight-box{padding:24px;background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent);margin:24px 0}
.legacy table{display:block;overflow-x:auto;max-width:100%;border-collapse:collapse}
.legacy th,.legacy td{padding:11px;border:1px solid var(--line);text-align:left}
.legacy pre{overflow:auto;background:var(--surface-2);border:1px solid var(--line);padding:20px;font-size:1rem}
.legacy .btn{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border:1px solid var(--line-strong);border-radius:var(--r-sm);text-decoration:none;font-size:1.0625rem;font-weight:540}
.legacy .btn:hover{background:var(--ink);border-color:var(--ink);color:var(--bg)}
.legacy .contact-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
.legacy .split{gap:24px}
.legacy .blog-breadcrumb,.legacy .breadcrumb{margin-bottom:24px}
.legacy small{font-size:.9375rem;color:var(--muted)}
.anchor{display:block;scroll-margin-top:calc(var(--header-h) + 20px)}

/* ---------- 21b. Free tools ---------- */
:root{--good:#17703a;--good-soft:#e3f1e8;--fair:#8a5a00;--fair-soft:#f6ecd6;--poor:#b3261e;--poor-soft:#f8e4e2}
:root[data-theme=dark]{--good:#6fcf97;--good-soft:#12291c;--fair:#f2c46d;--fair-soft:#2e2412;--poor:#ff8a80;--poor-soft:#331715}
.tool-panel{max-width:min(920px,100%)}
.tool-form{margin-top:8px}
.tool-input-row{display:flex;gap:12px;align-items:stretch}
.tool-input-row input{flex:1;min-width:0}
.tool-input-row .button{flex:none}
.button[disabled]{opacity:.65;cursor:progress}
.hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
.tool-error{margin-top:24px;padding:16px 18px;background:var(--poor-soft);border-left:3px solid var(--poor);color:var(--ink)}
.tool-results{margin-top:40px;padding-top:32px;border-top:2px solid var(--ink);scroll-margin-top:calc(var(--header-h) + 16px)}
.tool-results>h3{font-size:1.5rem;margin:40px 0 16px}
.tool-results h2:focus{outline:none}
.score-head{display:grid;grid-template-columns:auto minmax(0,1fr);gap:28px;align-items:center}
.score-head h2{font-size:clamp(1.75rem,1.3rem + 1.6vw,2.5rem);overflow-wrap:anywhere}
.score-head .micro{margin-top:8px;color:var(--muted)}
.score-big{display:flex;align-items:baseline;justify-content:center;min-width:150px;padding:22px 20px;border:1px solid var(--line);border-top:4px solid var(--line-strong);background:var(--surface)}
.score-number{font-size:clamp(3rem,2.4rem + 2.4vw,4.5rem);font-weight:650;line-height:1;letter-spacing:-.03em}
.score-of{font-size:1.125rem;color:var(--muted);margin-left:4px}
.score-big.grade-good{border-top-color:var(--good)}.score-big.grade-good .score-number{color:var(--good)}
.score-big.grade-fair{border-top-color:var(--fair)}.score-big.grade-fair .score-number{color:var(--fair)}
.score-big.grade-poor{border-top-color:var(--poor)}.score-big.grade-poor .score-number{color:var(--poor)}
.score-grid{margin-top:30px;border-top:1px solid var(--line)}
.score-row{display:grid;grid-template-columns:minmax(0,15rem) minmax(0,1fr) 7.5rem;gap:18px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
.score-label{font-size:1rem;font-weight:540}
.score-value{font-family:var(--mono);font-size:.9375rem;text-align:right}
.score-bar{display:block;height:8px;background:var(--surface-3)}
.score-fill{display:block;height:100%;background:var(--line-strong)}
.score-fill.grade-good{background:var(--good)}.score-fill.grade-fair{background:var(--fair)}.score-fill.grade-poor{background:var(--poor)}.score-fill.grade-na{width:0}
.w-0{width:0}.w-5{width:5%}.w-10{width:10%}.w-15{width:15%}.w-20{width:20%}.w-25{width:25%}.w-30{width:30%}.w-35{width:35%}.w-40{width:40%}.w-45{width:45%}.w-50{width:50%}
.w-55{width:55%}.w-60{width:60%}.w-65{width:65%}.w-70{width:70%}.w-75{width:75%}.w-80{width:80%}.w-85{width:85%}.w-90{width:90%}.w-95{width:95%}.w-100{width:100%}
.summary-facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin-top:28px;border:1px solid var(--line);background:var(--surface)}
.summary-facts>div{padding:20px 22px;border-right:1px solid var(--line)}
.summary-facts>div:last-child{border-right:0}
.summary-facts strong{display:block;font-size:1.625rem;font-weight:640;line-height:1.2}
.summary-facts span{display:block;margin-top:6px;font-size:.9375rem;color:var(--muted)}
.finding-list{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}
.finding{padding:22px 0;border-bottom:1px solid var(--line)}
.finding h4{font-size:1.25rem;margin:10px 0 8px}
.finding p{font-size:1.0625rem;color:var(--ink-2);max-width:72ch}
.finding .text-link{display:inline-block;margin-top:10px}
.finding-head{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.finding-evidence{font-family:var(--mono);font-size:.875rem!important;background:var(--surface-2);border-left:2px solid var(--line-strong);padding:10px 12px;margin-bottom:10px;overflow-wrap:anywhere}
.badge{display:inline-block;padding:3px 8px;border-radius:var(--r-xs);font-size:.8125rem;font-weight:600;letter-spacing:.02em;border:1px solid currentColor}
.badge-high{color:var(--poor);background:var(--poor-soft)}
.badge-medium{color:var(--fair);background:var(--fair-soft)}
.badge-low{color:var(--muted);background:var(--surface-2)}
.tool-details{margin-top:28px;border:1px solid var(--line);background:var(--surface);padding:0 20px}
.tool-details summary{padding:16px 0;font-weight:560;cursor:pointer}
.tool-details ul{padding:0 0 18px 18px;font-size:.9375rem;color:var(--ink-2)}
.tool-details li{margin:6px 0;overflow-wrap:anywhere}
.tool-cta .actions{margin-top:16px}
.calc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,230px),1fr));gap:0 20px}
.calc-mix{border:0;border-top:1px solid var(--line);padding:18px 0 0;margin:8px 0 0}
.calc-mix legend{font-size:1.125rem;font-weight:600;padding:0 0 12px}
/* position:relative keeps absolutely positioned descendants (e.g. .sr-only labels) inside the scroll box. */
.table-scroll{position:relative;overflow-x:auto;margin-top:36px}
.assumption-table{border-collapse:collapse;width:100%;font-size:1rem}
.assumption-table caption{text-align:left;font-weight:600;padding-bottom:10px}
.assumption-table th,.assumption-table td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}
.pipeline{list-style:none;counter-reset:step;padding:0;margin:0;display:grid;gap:8px}
.pipeline li{counter-increment:step;display:grid;grid-template-columns:2.5rem minmax(0,1fr);align-items:baseline;padding:12px 16px;background:var(--surface);border:1px solid var(--line)}
.pipeline li:before{content:counter(step,decimal-leading-zero);font-family:var(--mono);font-size:.875rem;color:var(--accent)}
.plain-list{padding-left:18px;font-size:1.0625rem;color:var(--ink-2)}
.plain-list li{margin:6px 0}
.tool-results .deliverables ul{margin-top:4px}
.health-question{border:0;border-top:1px solid var(--line);padding:18px 0;margin:0}
.health-question legend{float:left;width:100%;font-size:1.0625rem;font-weight:540;margin-bottom:12px}
.health-question legend .micro{display:block;color:var(--muted);margin-bottom:4px}
.choice-row{clear:both;display:flex;flex-wrap:wrap;gap:10px}
.choice-row label{display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border:1px solid var(--line-strong);border-radius:var(--r-sm);background:var(--surface);cursor:pointer;font-size:1rem}
.choice-row label:has(input:checked){border-color:var(--accent);background:var(--accent-soft);color:var(--accent-ink)}
.choice-row input{accent-color:var(--accent)}
.tools-band .tool-form-compact{max-width:760px;margin-top:10px}
.tool-links{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:22px}
.tool-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(20px,2.5vw,32px)}
.badge-good{color:var(--good);background:var(--good-soft)}
.tool-summary{font-size:1.0625rem;margin-top:18px;max-width:72ch}
.crawler-table code,.tool-results td code{font-family:var(--mono);font-size:.875rem;overflow-wrap:anywhere}
.crawler-table small,.lab-table small{color:var(--muted)}
.code-output{display:block;width:100%;font-family:var(--mono);font-size:.875rem;line-height:1.55;background:var(--surface-2);border:1px solid var(--line);padding:14px 16px;overflow:auto;white-space:pre;max-height:460px;margin-top:12px}
textarea.code-output{min-height:340px;resize:vertical}
/* Homepage pillars */
.pillars{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(24px,3vw,40px)}
.pillar{display:flex;flex-direction:column;border-top:2px solid var(--ink);padding-top:22px}
.pillar>.micro{color:var(--accent);margin-bottom:14px}
.pillar h3{font-size:1.625rem;letter-spacing:-.022em;margin-bottom:12px}
.pillar>p{font-size:1.0625rem;color:var(--ink-2)}
.pillar>p.pillar-tags{font-family:var(--mono);font-size:.8125rem;letter-spacing:.04em;color:var(--muted);margin-top:14px}
.pillar-links{list-style:none;padding:0;margin:auto 0 0;padding-top:20px}
.pillar-links li{border-top:1px solid var(--line)}
.pillar-links a{display:flex;justify-content:space-between;gap:12px;padding:12px 0;text-decoration:none;font-weight:540}
.pillar-links a:after{content:"\2197";color:var(--muted)}
.pillar-links a:hover{color:var(--accent)}
.pillar-foot{display:flex;flex-wrap:wrap;gap:12px 32px;margin-top:36px}
/* Workflow comparison */
.flow-list{list-style:none;counter-reset:flow;padding:0;margin:18px 0 0}
.flow-list li{position:relative;counter-increment:flow;padding:11px 0 11px 40px;border-top:1px solid var(--line);color:var(--ink-2);font-size:1rem}
.flow-list li:before{content:counter(flow,decimal-leading-zero);position:absolute;left:0;top:12px;font-family:var(--mono);font-size:.8125rem;color:var(--muted)}
.is-hub .flow-list li:before{color:var(--accent)}
.compare+.actions{margin-top:26px}
/* AI Code Rescue checklist */
.check-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,240px),1fr));gap:0 28px}
.check-grid>div{border-top:1px solid var(--line);padding:16px 0}
.check-grid h3{font-size:1.125rem;margin-bottom:6px}
.check-grid p{font-size:.9375rem;color:var(--muted)}
/* Agentic Commerce Lab */
.lab-presets{display:flex;flex-wrap:wrap;gap:10px;margin:2px 0 6px}
.chip-button{font:inherit;font-size:.9375rem;padding:8px 14px;border:1px solid var(--line-strong);border-radius:var(--r-sm);background:var(--surface);color:var(--ink);cursor:pointer}
.chip-button:hover{border-color:var(--accent);color:var(--accent)}
.agent-steps{list-style:none;counter-reset:agent;padding:0;margin:26px 0 0}
.agent-steps>li{position:relative;counter-increment:agent;margin-left:13px;padding:0 0 34px 38px;border-left:1px solid var(--line);transition:opacity .35s var(--ease),transform .35s var(--ease)}
.agent-steps>li.is-pending{opacity:0;transform:translateY(8px)}
.agent-steps>li:last-child{border-left-color:transparent}
.agent-steps>li:before{content:counter(agent);position:absolute;left:-14px;top:-1px;width:27px;height:27px;display:grid;place-items:center;border-radius:50%;background:var(--ink);color:var(--bg);font-family:var(--mono);font-size:.8125rem}
.agent-steps h3{font-size:1.25rem;margin-bottom:12px}
.agent-steps>li>p{font-size:1.0625rem;color:var(--ink-2);max-width:72ch}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0}
.tag-list li{font-family:var(--mono);font-size:.8125rem;padding:5px 9px;border-radius:var(--r-xs);background:var(--accent-soft);color:var(--accent-ink)}
.tag-list li.is-missing{background:var(--surface-2);color:var(--muted)}
.lab-table th[scope=row]{font-weight:560;min-width:9.5rem}
.lab-table td{min-width:7rem}
.lab-table td:nth-child(2){min-width:0;white-space:nowrap}
.st-pass{color:var(--good)}.st-fail{color:var(--poor)}.st-unknown{color:var(--fair)}.st-info{color:var(--muted)}
.product-card{max-width:560px;padding:20px 22px;background:var(--surface);border:1px solid var(--line);border-top:3px solid var(--good)}
.product-card>.micro{color:var(--good)}
.product-card h4{font-size:1.375rem;margin:6px 0 4px}
.product-card>p{color:var(--muted)}
.agent-steps .callout .actions{margin-top:14px}
@media(max-width:1020px){
  .pillars{grid-template-columns:minmax(0,1fr)}
}
@media(max-width:700px){
  .tool-input-row{flex-direction:column}
  .score-head{grid-template-columns:minmax(0,1fr);gap:18px}
  .score-big{justify-content:flex-start}
  .score-row{grid-template-columns:minmax(0,1fr) 5.5rem;gap:8px 12px}
  .score-bar{grid-column:1/-1;grid-row:2}
  .summary-facts{grid-template-columns:minmax(0,1fr)}
  .summary-facts>div{border-right:0;border-bottom:1px solid var(--line)}
  .summary-facts>div:last-child{border-bottom:0}
  .tool-cards{grid-template-columns:minmax(0,1fr)}
}

/* ---------- 22. Motion ---------- */
@keyframes fade-up{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
/* Reveal is opt-in via JS so content stays visible when scripting is unavailable. */
html.js .reveal{opacity:0;transform:translateY(12px)}
html.js .reveal.is-visible{opacity:1;transform:none;transition:opacity .45s var(--ease),transform .45s var(--ease);transition-delay:var(--d,0ms)}

/* ---------- 23. Responsive ---------- */
@media(max-width:1100px){
  .wrap{width:calc(100% - 56px)}
  .desktop-nav{font-size:1rem}
  .desktop-nav a{padding:9px 8px}
  .hero-grid{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:34px}
  .service-row{grid-template-columns:40px minmax(0,1fr) minmax(0,1fr) 22px;gap:18px}
  .process{grid-template-columns:repeat(3,minmax(0,1fr))}
  .process li:nth-child(n+4){margin-top:26px}
}
@media(max-width:1020px){
  .desktop-nav{display:none}
  .mobile-nav{display:block}
  .hero-grid,.method-intro,.detail-grid{grid-template-columns:minmax(0,1fr)}
  .two-column,.compare{grid-template-columns:minmax(0,1fr)}
  .feature,.feature+.feature{padding:34px 0;border-left:0}
  .feature+.feature{border-top:1px solid var(--line)}
  .compare-col+.compare-col{border-left:0;border-top:1px solid var(--line)}
  .facts{grid-template-columns:repeat(2,minmax(0,1fr))}
  .fact:nth-child(2n){border-right:0}
  .fact:nth-child(n+3){border-top:1px solid var(--line)}
  .journal-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-top{grid-template-columns:minmax(0,1fr)}
}
@media(max-width:700px){
  .wrap{width:calc(100% - 36px)}
  .split,.section-heading{grid-template-columns:minmax(0,1fr);gap:26px}
  .section-heading{align-items:start}
  .process{grid-template-columns:repeat(2,minmax(0,1fr))}
  .process li{padding-right:16px}
  .process li:nth-child(n+3){margin-top:24px}
  .journal-grid,.deliverables,.legacy .contact-grid{grid-template-columns:minmax(0,1fr)}
  .office-grid{grid-template-columns:minmax(0,1fr)}
  .office-grid>div{border-right:0;padding:20px 0 0}
  .office-grid>div:last-child{padding-left:0;border-top:1px solid var(--line)}
  .service-row{grid-template-columns:30px minmax(0,1fr) 20px;gap:12px;padding:20px 0}
  .service-row p{grid-column:2;grid-row:2;margin-top:4px}
  .service-row .arrow{grid-column:3;grid-row:1}
  .service-row:hover{padding-left:0}
  .actions{gap:10px 18px}
  .contact-band .wrap{align-items:flex-start;gap:26px}
  .footer-bottom{flex-direction:column;gap:14px}
  .legacy{overflow-wrap:anywhere}
  .figure-graphic{padding:18px 16px}
  .flow-node{font-size:12px;padding:12px 13px}
  .hero:before{background-size:60px 60px;opacity:.22}
}
@media(max-width:420px){
  .facts{grid-template-columns:minmax(0,1fr)}
  .fact{border-right:0;padding:18px 0}
  .fact:nth-child(n+2){border-top:1px solid var(--line)}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  html.js .reveal{opacity:1;transform:none}
  .process li:before{width:100%}
}
@media print{
  .site-header,.mobile-nav,.contact-band,.skip,.icon-btn{display:none!important}
  body{background:#fff;color:#000}
  .wrap{width:100%}
  .hero:before{display:none}
}

/* Consistent touch targets and select rendering, including Safari/iOS. */
.journal-controls>div{flex:1 1 240px;min-width:0}
.journal-controls input,.journal-controls select{display:block;box-sizing:border-box;width:100%;min-width:0;height:52px;font-size:16px}
.journal-controls select,.field select{-webkit-appearance:none;appearance:none;padding-right:44px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath d='m4 6 4 4 4-4' fill='none' stroke='%236b7280' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center}