*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
:root {
  --bg: #050505; --surface: #09090a; --surface-2: #0d0d0e; --ink: #f2f2f0; --muted: #929398; --dim: #7c7d82;
  --rule: rgba(242,242,240,.11); --rule-strong: rgba(242,242,240,.22); --signal: #c8381a; --signal-text: #e05a3a;
  --display: "Helvetica Neue", Helvetica, Arial, sans-serif; --sans: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "SFMono-Regular", "SF Mono", Consolas, monospace; --gutter: clamp(22px,5.1vw,84px); --page: 1512px;
}
html { overflow-x: hidden; scroll-behavior: smooth; scroll-padding-top: 76px; background: var(--bg); }
body { min-width: 320px; overflow-x: hidden; padding-top: 76px; background: var(--bg); color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
a:focus-visible, summary:focus-visible { outline: 1px solid var(--signal); outline-offset: 5px; }
::selection { background: var(--ink); color: var(--bg); }
.skip-link { position: fixed; z-index: 100; top: 12px; left: 12px; padding: 10px 14px; opacity: 0; pointer-events: none; background: var(--ink); color: var(--bg); font: 600 13px/1 var(--sans); }
.skip-link:focus { opacity: 1; pointer-events: auto; outline: 2px solid var(--signal); outline-offset: 3px; }
.shell { width: min(var(--page),calc(100% - (var(--gutter) * 2))); margin-inline: auto; }
.site-nav { position: fixed; z-index: 50; inset: 0 0 auto; width: 100%; border-bottom: 1px solid var(--rule); background: rgba(5,5,5,.96); backdrop-filter: blur(16px); }
.nav-inner { position: relative; display: flex; min-height: 76px; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; flex: 0 0 auto; align-items: center; color: var(--muted); font-size: 15px; font-weight: 450; letter-spacing: -.025em; white-space: nowrap; }
.brand i { padding: 0 .14em; color: var(--signal-text); font-style: normal; }
.brand strong { color: var(--ink); font-weight: 620; }
.brand-full, .brand-compact { display: inline-flex; align-items: center; white-space: nowrap; }
.brand-compact { display: none; font-size: 20px; letter-spacing: -.02em; }
.brand-compact i { padding-inline: .18em; }
.nav-links { display: flex; align-items: center; gap: clamp(14px,1.7vw,28px); margin-left: auto; }
.nav-links > a, .nav-links > .nav-pending, .product-nav > summary { color: var(--muted); font: 450 14px/1 var(--sans); letter-spacing: .01em; }
.nav-links > a:hover, .nav-links > a.current, .product-nav > summary:hover, .product-nav[open] > summary { color: var(--ink); }
.nav-pending { cursor: default; opacity: .55; }
.product-nav { position: static; }
summary { list-style: none; }
summary::-webkit-details-marker { display: none; }
.product-nav > summary { padding: 32px 0; cursor: pointer; }
.product-nav > summary::after { margin-left: 8px; color: var(--signal-text); font-family: var(--mono); content: "+"; }
.product-nav[open] > summary::after { content: "−"; }
.product-panel { position: absolute; top: 100%; left: 50%; display: grid; width: min(900px,calc(100vw - (var(--gutter) * 2))); grid-template-columns: repeat(3,1fr); transform: translateX(-50%); border: 1px solid var(--rule-strong); background: var(--surface); box-shadow: 0 28px 80px rgba(0,0,0,.56); }
.product-nav:not([open]) .product-panel { display: none; }
.product-panel > .product-card { display: flex; min-height: 170px; flex-direction: column; gap: 11px; padding: 24px; border-right: 1px solid var(--rule); }
.product-panel > .product-card:last-of-type { border-right: 0; }
.product-panel > a:hover, .product-panel > a.current { background: #101011; }
.product-panel > a.current { box-shadow: inset 0 2px 0 var(--signal); }
.product-brain { display: grid; min-height: 56px; padding: 14px 24px; grid-column: 1 / -1; grid-template-columns: minmax(180px,.72fr) 1.5fr auto; align-items: center; gap: 28px; border-bottom: 1px solid var(--rule-strong); }
.product-brain strong { font-size: 15px; font-weight: 520; letter-spacing: -.02em; }
.product-brain-copy { color: var(--muted); font-size: 13px; line-height: 18px; }
.product-brain > i { color: var(--signal-text); font: normal 13px/1 var(--mono); white-space: nowrap; }
.tile-top { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.tile-top strong { font-size: 20px; font-weight: 520; letter-spacing: -.03em; }
.tile-top > span { color: var(--muted); font-size: 13px; }
.product-panel .job { color: var(--muted); font-size: 14px; line-height: 20px; }
.mobile-nav { position: static; display: none; }
.mobile-nav > summary { display: grid; width: 42px; height: 42px; place-items: center; cursor: pointer; }
.menu-icon { display: grid; width: 22px; gap: 4px; }
.menu-icon i { display: block; width: 100%; height: 1px; background: var(--muted); transform-origin: center; transition: transform .18s ease,opacity .18s ease; }
.menu-icon i:nth-child(2) { width: 15px; margin-left: auto; background: var(--signal); }
.mobile-nav[open] .menu-icon i:first-child { transform: translateY(5px) rotate(45deg); }
.mobile-nav[open] .menu-icon i:nth-child(2) { opacity: 0; }
.mobile-nav[open] .menu-icon i:last-child { transform: translateY(-5px) rotate(-45deg); }
.mobile-panel { position: fixed; top: 76px; right: 0; left: 0; max-height: calc(100vh - 76px); padding: 26px var(--gutter); overflow-y: auto; border-bottom: 1px solid var(--rule-strong); background: var(--surface); box-shadow: 0 30px 80px rgba(0,0,0,.62); }
.mobile-nav:not([open]) .mobile-panel { display: none; }
.mobile-sheet-head { display: flex; padding-bottom: 13px; align-items: baseline; justify-content: space-between; color: var(--dim); font: 500 11px/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.mobile-sheet-head small { font: inherit; letter-spacing: .02em; text-transform: none; }
.mobile-products { display: grid; grid-template-columns: repeat(3,1fr); border-block: 1px solid var(--rule-strong); }
.mobile-products > a { display: grid; min-height: 138px; padding: 20px; grid-template-columns: 1fr auto; align-content: space-between; gap: 12px; border-right: 1px solid var(--rule); }
.mobile-products > a:last-child { border-right: 0; }
.mobile-products > a.current { box-shadow: inset 0 2px 0 var(--signal); }
.mobile-products > a > span { display: grid; gap: 7px; }
.mobile-products strong { font-size: 18px; font-weight: 520; letter-spacing: -.03em; }
.mobile-products small { color: var(--muted); font-size: 12px; }
.mobile-products i { grid-column: 2; grid-row: 1 / span 2; align-self: center; color: var(--dim); font: normal 13px/1 var(--mono); }
.mobile-intelligence { display: flex; min-height: 76px; margin-bottom: 18px; padding: 14px 4px; align-items: center; justify-content: space-between; border-block: 1px solid var(--rule-strong); }
.mobile-intelligence.current { box-shadow: inset 0 2px 0 var(--signal); }
.mobile-intelligence > span { display: grid; gap: 5px; }
.mobile-intelligence small { color: var(--dim); font: 500 11px/1 var(--mono); letter-spacing: .09em; text-transform: uppercase; }
.mobile-intelligence strong { font-size: 16px; font-weight: 520; }
.mobile-intelligence > i, .mobile-secondary i { color: var(--signal-text); font: normal 13px/1 var(--mono); }
.mobile-sheet-head.secondary { margin-top: 28px; }
.mobile-secondary { display: grid; grid-template-columns: repeat(4,1fr); border-block: 1px solid var(--rule); }
.mobile-secondary > * { display: flex; justify-content: space-between; padding: 14px 16px 14px 0; color: var(--muted); font-size: 12px; }
.mobile-secondary > * + * { padding-left: 16px; border-left: 1px solid var(--rule); }
.mobile-sheet-foot { padding-top: 20px; color: var(--dim); font: 500 11px/1.4 var(--mono); }

main { background: linear-gradient(90deg,transparent calc(var(--gutter) - 1px),rgba(242,242,240,.075) var(--gutter),transparent calc(var(--gutter) + 1px)),var(--bg); }
.product-hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--rule); }
.hero-grid { display: grid; min-height: 760px; grid-template-columns: minmax(0,1.2fr) minmax(340px,.8fr); align-items: center; gap: clamp(52px,8vw,128px); padding-block: clamp(76px,8vw,122px); }
.hero-copy { position: relative; z-index: 2; padding-left: clamp(24px,2.2vw,34px); }
.product-label { display: flex; align-items: baseline; gap: 14px; }
.product-label strong { color: var(--ink); font-size: 19px; font-weight: 520; letter-spacing: -.02em; }
.product-label span { color: var(--signal-text); font: 500 11px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.product-hero h1 { max-width: 10ch; margin-top: 24px; font-size: clamp(64px,7.2vw,112px); font-weight: 430; letter-spacing: -.065em; line-height: .9; }
.product-hero h1 em { display: block; color: var(--muted); font-style: normal; font-weight: 360; }
.hero-lede { max-width: 680px; margin-top: 32px; color: var(--muted); font-size: clamp(18px,1.55vw,23px); line-height: 1.58; }
.record-example-note { padding: 20px 28px; border-bottom: 1px solid var(--rule); color: var(--muted); font-size: 14px; line-height: 1.55; }
.hero-figure { position: relative; height: min(620px,56vw); margin-right: calc(var(--gutter) * -1); background-image: linear-gradient(to right,var(--bg),transparent 28%),url("/design-directions/graphic-studies/architect-concepts-v1.webp?v=1"); background-repeat: no-repeat; background-size: 100% 100%,300% auto; background-position: center,center center; opacity: .94; -webkit-mask-image: radial-gradient(ellipse at center,#000 44%,transparent 78%); mask-image: radial-gradient(ellipse at center,#000 44%,transparent 78%); }
.scanner-page .hero-figure { background-image: linear-gradient(to right,var(--bg),transparent 28%),url("/design-directions/graphic-studies/scanner-concepts-v1.webp?v=1"); }
.sentry-page .hero-figure { background-image: linear-gradient(to right,var(--bg),transparent 28%),url("/design-directions/graphic-studies/sentry-concepts-v1.webp?v=1"); }
.brain-page .hero-figure { background-image: linear-gradient(to right,var(--bg),transparent 28%),url("/design-directions/graphic-studies/brain-concepts-v1.webp?v=1"); }

.chapter { padding-block: clamp(92px,9vw,138px); border-bottom: 1px solid var(--rule); }
.chapter-grid { display: grid; grid-template-columns: minmax(0,1.08fr) minmax(340px,.72fr); gap: clamp(64px,9vw,144px); padding-left: clamp(24px,2.2vw,34px); align-items: start; }
.chapter-heading h2, .system-place h2, .closing h2 { max-width: 13ch; font-size: clamp(48px,5.8vw,88px); font-weight: 430; letter-spacing: -.06em; line-height: .94; }
.chapter-copy { padding-left: 28px; border-left: 1px solid var(--signal); }
.chapter-copy p { color: var(--muted); font-size: clamp(17px,1.45vw,21px); line-height: 1.62; }
.chapter-copy p + p { margin-top: 1.25em; }
.audience-rail { display: grid; margin-top: clamp(58px,6vw,92px); grid-template-columns: repeat(3,1fr); padding-left: clamp(24px,2.2vw,34px); border-block: 1px solid var(--rule-strong); }
.audience-rail div { min-height: 150px; padding: 28px 28px 28px 0; }
.audience-rail div + div { padding-left: 28px; border-left: 1px solid var(--rule); }
.audience-rail strong { display: block; font-size: 20px; font-weight: 460; letter-spacing: -.025em; }
.audience-rail span { display: block; margin-top: 12px; color: var(--muted); font-size: 13px; line-height: 1.5; }
.decision { background: var(--surface); }
.decision-record { display: grid; margin-top: clamp(64px,7vw,106px); margin-left: auto; grid-template-columns: minmax(280px,.72fr) minmax(0,1.28fr); border: 1px solid var(--rule-strong); background: var(--bg); }
.decision-record figcaption { display: flex; grid-column: 1 / -1; min-height: 48px; padding: 0 18px; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--rule); color: var(--muted); font: 500 11px/1 var(--mono); }
.record-key { margin-bottom: 12px; color: var(--signal-text); font: 500 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.record-question { grid-column: 1 / -1; padding: clamp(26px,3vw,44px); border-bottom: 1px solid var(--rule-strong); }
.record-question h3 { max-width: 28ch; font-size: clamp(28px,3vw,44px); font-weight: 430; letter-spacing: -.04em; line-height: 1.1; }
.record-context { padding: clamp(24px,2.4vw,36px); border-right: 1px solid var(--rule); }
.record-context dl { display: grid; }
.record-context dl div { display: grid; padding: 13px 0; grid-template-columns: 88px 1fr; border-top: 1px solid var(--rule); }
.record-context dt { color: var(--muted); font: 500 11px/1.4 var(--mono); text-transform: uppercase; }
.record-context dd { color: var(--muted); font-size: 13px; }
.record-answer { display: grid; grid-template-columns: 1fr 1fr; }
.record-answer > div { padding: clamp(24px,2.4vw,36px); }
.record-answer > div + div { border-left: 1px solid var(--rule); }
.record-answer p:not(.record-key) { color: var(--muted); font-size: 15px; line-height: 1.58; }
.record-answer .record-proof { grid-column: 1 / -1; border-top: 1px solid var(--rule); border-left: 0; box-shadow: inset 2px 0 0 var(--signal); }
.workflow-steps { display: grid; margin-top: clamp(62px,7vw,104px); grid-template-columns: repeat(4,1fr); padding-left: clamp(24px,2.2vw,34px); border-block: 1px solid var(--rule-strong); }
.workflow-steps li { min-height: 260px; padding: 26px 28px 30px 0; list-style: none; }
.workflow-steps li + li { padding-left: 28px; border-left: 1px solid var(--rule); }
.workflow-steps li > span { color: var(--signal-text); font: 500 11px/1 var(--mono); }
.workflow-steps strong { display: block; margin-top: 42px; font-size: 22px; font-weight: 460; letter-spacing: -.03em; }
.workflow-steps p { margin-top: 14px; color: var(--muted); font-size: 14px; line-height: 1.55; }
.moment-rail { display: grid; margin-top: 34px; grid-template-columns: repeat(3,1fr); padding-left: clamp(24px,2.2vw,34px); }
.moment-rail div { padding-right: 28px; }
.moment-rail div + div { padding-left: 28px; border-left: 1px solid var(--rule); }
.moment-rail span { display: block; color: var(--muted); font: 500 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.moment-rail strong { display: block; margin-top: 9px; color: var(--muted); font-size: 14px; font-weight: 450; }
.system-place { padding-block: clamp(88px,9vw,136px); border-bottom: 1px solid var(--rule); }
.system-place > .shell { padding-left: clamp(24px,2.2vw,34px); }
.system-products { display: grid; margin-top: clamp(56px,6vw,90px); grid-template-columns: repeat(3,1fr); border-block: 1px solid var(--rule-strong); }
.system-products a { min-height: 220px; padding: 26px 30px 30px 0; }
.system-products a + a { padding-left: 30px; border-left: 1px solid var(--rule); }
.system-products a.current { box-shadow: inset 0 2px 0 var(--signal); }
.system-products span { color: var(--signal-text); font: 500 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.system-products strong { display: block; margin-top: 42px; font-size: 34px; font-weight: 450; letter-spacing: -.04em; }
.system-products p { margin-top: 12px; color: var(--muted); font-size: 14px; }
.closing { padding-block: clamp(88px,9vw,136px); background: var(--surface); }
.closing-grid { display: grid; grid-template-columns: minmax(0,1.1fr) minmax(320px,.55fr); gap: clamp(64px,9vw,144px); padding-left: clamp(24px,2.2vw,34px); align-items: end; }
.closing-grid > div:last-child { padding-top: 24px; border-top: 1px solid var(--rule-strong); }
.closing-grid > div:last-child p { color: var(--muted); font-size: 17px; line-height: 1.55; }
.closing-grid a { display: inline-flex; margin-top: 28px; padding-bottom: 8px; gap: 36px; border-bottom: 1px solid var(--ink); font-size: 14px; }
.closing-grid a span { color: var(--signal-text); }
.site-footer { display: flex; min-height: 104px; align-items: center; justify-content: space-between; border-top: 1px solid var(--rule); color: var(--dim); font-size: 11px; }
.site-footer a { color: var(--muted); }

@media (max-width: 900px) {
  .brand-full { display: none; }
  .brand-compact { display: inline-flex; }
  .nav-links { display: none; }
  .mobile-nav { display: block; }
  .hero-grid, .chapter-grid, .closing-grid { grid-template-columns: 1fr; }
  .hero-grid { min-height: 0; padding-top: 72px; }
  .hero-figure { width: calc(100% + var(--gutter)); height: 520px; margin: -30px calc(var(--gutter) * -1) -60px 0; }
  .chapter-copy { margin-top: 42px; }
  .decision-record { grid-template-columns: 1fr; }
  .record-context { border-right: 0; border-bottom: 1px solid var(--rule); }
  .workflow-steps { grid-template-columns: repeat(2,1fr); }
  .workflow-steps li:nth-child(3) { border-left: 0; border-top: 1px solid var(--rule); }
  .workflow-steps li:nth-child(4) { border-top: 1px solid var(--rule); }
  .system-products { grid-template-columns: 1fr; }
  .system-products a { min-height: 0; padding: 28px 0; }
  .system-products a + a { padding-left: 0; border-top: 1px solid var(--rule); border-left: 0; }
  .system-products strong { margin-top: 22px; }
}

@media (max-width: 540px) {
  html { scroll-padding-top: 68px; }
  body { padding-top: 68px; }
  .nav-inner { min-height: 68px; }
  .brand { font-size: 14px; }
  .mobile-panel { top: 68px; max-height: calc(100vh - 68px); padding: 22px; }
  .mobile-products { grid-template-columns: 1fr; }
  .mobile-products > a { min-height: 102px; padding: 16px 4px; border-right: 0; border-bottom: 1px solid var(--rule); }
  .mobile-products > a:last-child { border-bottom: 0; }
  .mobile-secondary { grid-template-columns: 1fr; }
  .mobile-secondary > * + * { padding-left: 0; border-top: 1px solid var(--rule); border-left: 0; }
  .hero-grid { gap: 28px; padding-block: 54px 34px; }
  .product-hero h1 { font-size: clamp(54px,15.5vw,68px); }
  .hero-lede { margin-top: 26px; font-size: 17px; }
  .hero-figure { height: 340px; margin-top: -10px; margin-bottom: -24px; }
  .chapter { padding-block: 72px; }
  .chapter-grid, .hero-copy, .audience-rail, .workflow-steps, .moment-rail, .system-place > .shell, .closing-grid { padding-left: 18px; }
  .chapter-heading h2, .system-place h2, .closing h2 { font-size: clamp(44px,13vw,58px); }
  .chapter-copy { margin-top: 32px; padding-left: 18px; }
  .audience-rail { grid-template-columns: 1fr; margin-top: 48px; }
  .audience-rail div { min-height: 0; padding: 24px 0; }
  .audience-rail div + div { padding-left: 0; border-top: 1px solid var(--rule); border-left: 0; }
  .decision-record { width: calc(100% - 44px); margin-top: 52px; }
  .decision-record figcaption span:last-child { display: none; }
  .record-answer { grid-template-columns: 1fr; }
  .record-answer > div + div { border-top: 1px solid var(--rule); border-left: 0; }
  .record-answer .record-proof { grid-column: 1; }
  .workflow-steps { grid-template-columns: 1fr; margin-top: 50px; }
  .workflow-steps li { min-height: 0; padding: 25px 0; }
  .workflow-steps li + li { padding-left: 0; border-top: 1px solid var(--rule); border-left: 0; }
  .workflow-steps strong { margin-top: 22px; }
  .moment-rail { grid-template-columns: 1fr; margin-top: 28px; }
  .moment-rail div { padding: 18px 0; }
  .moment-rail div + div { padding-left: 0; border-top: 1px solid var(--rule); border-left: 0; }
  .system-place, .closing { padding-block: 72px; }
  .site-footer { display: block; padding-block: 34px; }
  .site-footer p + p { margin-top: 12px; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition-duration: .01ms !important; } }

.error-page main { min-height: calc(100vh - 168px); }
.error-shell { display: grid; min-height: calc(100vh - 168px); padding-block: clamp(88px,12vw,160px); align-content: center; }
.error-shell h1 { max-width: 10ch; margin-top: 24px; font-size: clamp(62px,9vw,136px); font-weight: 430; letter-spacing: -.068em; line-height: .88; }
.error-shell > p:last-of-type { max-width: 48ch; margin-top: 32px; color: var(--muted); font-size: clamp(17px,1.4vw,21px); line-height: 1.55; }
.error-actions { display: flex; margin-top: 42px; gap: 28px; flex-wrap: wrap; }
.error-actions a { padding-bottom: 8px; border-bottom: 1px solid var(--ink); font-size: 14px; }
.error-actions span { margin-left: 24px; color: var(--signal-text); }
.error-nav { display: flex; gap: 28px; color: var(--muted); font-size: 14px; }
.error-nav a:hover { color: var(--ink); }