/* Midnight, silver and ice blue: aligned with the reference wordmark. */
:root {
  color-scheme: dark;
  --night: #050a12;
  --deep-blue: #071a32;
  --sapphire: #123f73;
  --ivory: #f0f4f8;
  --gold: #8ed9fa;
  --ink: #07101d;
  --navy: #071a32;
  --paper: #f0f4f8;
  --white: #f0f4f8;
  --muted: #b4c1d0;
  --line: #293b50;
  --cyan: #8ed9fa;
  --teal: #8ed9fa;
}
body { background: var(--night); color: var(--ivory); }
::selection { background: var(--gold); color: var(--night); }
:focus-visible { outline-color: var(--gold); }
.eyebrow, .light { color: var(--gold); }
.text-link { color: var(--gold); }
.text-link:hover { color: #d8f1ff; }
.cyan, .ink { background: linear-gradient(115deg,#a9e3fc,#8ed9fa); color: var(--ink); border-color: #bceaff; }
.cyan:hover, .ink:hover { background: #c4edff; color: var(--ink); }
.site-header { background: linear-gradient(180deg,#050a12bb,#050a1255); border-bottom-color: #8ed9fa33; }
.site-header nav>a:not(.nav-cta) { color: #d6e0ea; }
.site-header nav>a:hover { color: #c4edff; }
.nav-cta { color: var(--ivory); border-color: #8ed9fa77; }
.hero { background: var(--night); }
.hero-shade { background: linear-gradient(90deg,#050a12f5 0%,#050a12ca 30%,#050a1222 67%,transparent),linear-gradient(0deg,#050a12 0%,transparent 25%,transparent 75%,#050a1270); }
.hero h1 em { color: #8ed9fa; }
.hero-copy, .invitation-note { color: #c0cad7; }
.hero-bottom { color: #b8c5d6; }
.hero-bottom a { color: var(--ivory); }
.signal { background: #a9e3fc; box-shadow: 0 0 15px #8ed9fa77; }
.hero.is-moving .hero-art { animation: arch-drift 22s ease-in-out infinite alternate; transform-origin: 75% 55%; will-change: transform; }
.hero.is-motion-paused .hero-art { animation-play-state: paused; }
@keyframes arch-drift {
  from { transform: scale(1.025) translate3d(.4%,0,0); }
  to { transform: scale(1.1) translate3d(-1.2%,-.7%,0); }
}
.motion-control { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 7px 11px; border: 1px solid #8ed9fa66; background: #050a12aa; color: var(--ivory); font-size: 10px; letter-spacing: .02em; }
.motion-control span { color: var(--gold); }
.motion-control:hover { background: #12243b; }
.motion-control[hidden] { display: none; }
.experience-section { background: linear-gradient(180deg,#07101e,#080f1c); border-bottom-color: #8ed9fa33; }
.experience-heading h2 em { color: #c9d9eb; }
.roster-caption>p, .experience-note, .experience-context>p { color: #aebdce; }
.experience-context li { color: #dae2eb; }
.marquee-control { color: var(--gold); border-color: #526074; }
.marquee-control:hover { background: #12243b; }
.client-logo img { filter: grayscale(1) invert(1); opacity: .86; }
.brute-force { background: radial-gradient(ellipse at 95% 90%,#123f7366,transparent 62%),linear-gradient(120deg,#050c18,#0a1b31); border-bottom-color: #8ed9fa44; position: relative; }
.brute-force::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg,transparent,#8ed9fa88,transparent); }
.brute-force-heading h2 em { color: var(--gold); }
.brute-force-steps li { border-top-color: #8ed9fa66; }
.brute-force-steps li:not(:last-child)::after, .brute-force-steps .step-number { color: var(--gold); }
.brute-force-close { border-top-color: #3c4c61; }
.brute-force-close strong { color: var(--ivory); }
.partnership-section { background: radial-gradient(ellipse at 0 70%,#10386566,transparent 60%),#030a16; }
.partnership-lead h2 em { color: #8ed9fa; }
.partnership-lead>p:not(.eyebrow), .partnership-paths p, .partnership-note { color: var(--muted); }
.partnership-statement { color: var(--ivory); }
.partnership-paths, .partnership-paths>div { border-color: #2c3c50; }
.partnership-paths span { color: var(--gold); }
.capabilities { background: linear-gradient(150deg,#091528,#07101e); }
.capability-list, .capability-list details { border-color: #314259; }
.capability-list .index { color: #8ed9fa; }
.capability-list details[open] { background: linear-gradient(90deg,#14345733,transparent); }
.system { background: radial-gradient(ellipse at 100% 0,#123f734d,transparent 62%),#050a12; }
.system h2 em { color: #8ed9fa; }
.system .section-note, .system .section-heading>p, .scenario-tabs button { color: #b4c1d0; }
.scenario-tabs, .scenario-path, .example-label { border-color: #32465b; }
.scenario .mini-label { color: #b5c9df; }
.scenario-path li>span, .source-symbol { color: var(--gold); }
.scenario-source p, .scenario-path p, .scenario-measure p, .example-label { color: #b4c1d0; }
.judgment-grid h2 em, .invitation-intro h2 em { color: #8ed9fa; }
.orbit { background: radial-gradient(circle,#123f7344,transparent 66%); }
.orbit-ring { border-color: #536c80; }
.ring-one { border-color: #405877; }
.orbit-label { background: var(--night); color: #a9d9ee; }
.orbit-dot { background: #8ed9fa; outline-color: var(--night); box-shadow: 0 0 15px #8ed9fa33; }
.founder-monogram { border-color: #536c80; }
.ark-section { background: radial-gradient(ellipse at 80% 100%,#13477888,transparent 65%),linear-gradient(120deg,#071326,#0a223e); border-block: 1px solid #8ed9fa33; }
.ark-grid h2 em { color: var(--gold); }
.ark-grid>p:last-of-type { color: #c2cddd; }
.ark-outline, .ark-outline::before, .ark-outline::after { border-color: #8ed9fa55; }
.email-link { border-bottom-color: #6ca8c5; }
.invitation-card { background: linear-gradient(145deg,#101e32,#081321); border-color: #8ed9fa66; box-shadow: 0 20px 60px #0004; }
form input:not([type=checkbox]), form select, form textarea { border-color: #607189; background: #060e1bbb; color: var(--ivory); }
form input::placeholder, form textarea::placeholder { color: #9eafc3; }
form select option { background: #0b1728; color: var(--ivory); }
#form-status:not(:empty) { background: #152942; color: var(--ivory); }
.success-mark { background: #253345; }
.site-footer { border-top-color: #405b70; }
.footer-top>p { color: #a9d9ee; }
.subpage .site-header { background: var(--night); }
.sub-hero { background: radial-gradient(ellipse at 95% 100%,#123f7380,transparent 65%),#050d1a; border-bottom: 1px solid #8ed9fa44; }
.process-step { border-top-color: #405b70; }
.responsibility { background: #0a1b2f; }
.sub-close { background: linear-gradient(110deg,#071426,#0e2c4c); border-top: 1px solid #8ed9fa44; }
.reading a { color: var(--gold); }
@media(max-width:1100px) {
  .hero-shade { background: linear-gradient(90deg,#050a12f5 0%,#050a12cc 33%,#050a1244 70%,transparent),linear-gradient(0deg,#050a12,transparent 30%); }
}
@media(max-width:650px) {
  .site-header nav { background: #09162a; border-bottom-color: #8ed9fa55; }
  .hero-shade { background: linear-gradient(180deg,#050a12 0%,#050a12 42%,#050a12b0 56%,#050a1210 75%,#050a12 100%); }
  .hero.is-moving .hero-art { transform-origin: 65% 65%; animation-duration: 26s; }
  .hero-bottom { gap: 10px 16px; }
  .hero-bottom>span:first-child { flex-basis: 100%; }
  .motion-control { margin-left: auto; min-height: 44px; font-size: 9px; }
  .brute-force { background: radial-gradient(ellipse at 110% 90%,#123f7366,transparent 70%),#071426; }
}
@media(prefers-reduced-motion:reduce) {
  .hero:not(.motion-opt-in) .hero-art { animation: none!important; transform: none!important; will-change: auto; }
}

.scenario-measure h3 { color: var(--ivory); }

/* A compact, content-safe phone hero. svh stays stable as Safari's bars move. */
@media(max-width:650px) {
  .site-header { height:64px; }
  .brand-text { font-size:20px; }
  .menu-toggle { min-height:44px; }
  .site-header nav { top:64px; }
  .hero { min-height:100vh; min-height:100svh; height:auto; justify-content:flex-start; padding-bottom:max(12px,env(safe-area-inset-bottom)); isolation:isolate; }
  .hero-content { padding-top:86px; padding-bottom:132px; padding-bottom:clamp(112px,20svh,160px); }
  .hero .eyebrow { font-size:8px; letter-spacing:.11em; line-height:1.5; }
  .hero h1 { font-size:clamp(32px,9.4vw,40px); line-height:1.04; margin:14px 0 16px; }
  .hero-lead { font-size:15px; line-height:1.4; }
  .hero-copy { font-size:13px; line-height:1.5; margin-top:12px; max-width:365px; }
  .hero .button { min-height:46px; padding:11px 17px; font-size:12px; margin-top:18px; }
  .invitation-note { font-size:10px; line-height:1.5; margin-top:8px; }
  .hero-art { top:auto; bottom:0; height:360px; height:clamp(280px,56svh,420px); width:100%; object-fit:cover; object-position:88% 52%; opacity:.95; }
  .hero-shade { background:linear-gradient(180deg,#050a12 0%,#050a12 26%,#050a12ed 40%,#050a1270 62%,#050a1205 79%,#050a1290 100%); }
  .hero.is-moving .hero-art { animation:arch-drift-mobile 20s ease-in-out -5s infinite alternate; transform-origin:75% 65%; }
  .hero.is-motion-paused .hero-art { animation-play-state:paused; }
  .hero-bottom { position:relative; inset:auto; margin-top:auto; margin-bottom:0; min-height:44px; flex-wrap:nowrap; gap:12px; }
  .hero-bottom>span:first-child { display:none; }
  .hero-bottom a { display:inline-flex; align-items:center; min-height:44px; font-size:10px; }
  .hero-bottom a span { margin-left:12px; }
  .motion-control { flex-shrink:0; min-height:44px; font-size:10px; }
}
@keyframes arch-drift-mobile {
  from { transform:translate3d(0,0,0) scale(1.015); }
  to { transform:translate3d(-.6%,-.3%,0) scale(1.085); }
}
@media(max-width:650px) and (max-height:600px) {
  .site-header { height:60px; }
  .site-header nav { top:60px; }
  .hero { padding-bottom:max(8px,env(safe-area-inset-bottom)); }
  .hero-content { padding-top:76px; padding-bottom:92px; }
  .hero h1 { font-size:clamp(31px,9.1vw,36px); margin:10px 0 12px; }
  .hero-lead { font-size:14px; line-height:1.4; }
  .hero-copy { margin-top:9px; }
  .hero .button { min-height:44px; margin-top:12px; padding:10px 16px; }
  .invitation-note { margin-top:7px; }
  .hero-art { height:300px; object-position:90% 52%; }
  .hero-shade { background:linear-gradient(180deg,#050a12 0%,#050a12 22%,#050a12ed 41%,#050a1280 64%,#050a1208 82%,#050a1280 100%); }
}
@media(max-width:360px) {
  .hero .eyebrow { font-size:7px; letter-spacing:.08em; }
}
@media(prefers-reduced-motion:reduce) {
  .hero:not(.motion-opt-in) .hero-art { animation:none!important; transform:none!important; will-change:auto; }
}

/* Short landscape phones keep the primary action beside the artwork. */
@media(min-width:651px) and (max-width:950px) and (max-height:500px) {
  .site-header { height:60px; padding-inline:24px; }
  .brand-text { font-size:20px; }
  .hero { min-height:100vh; min-height:100svh; height:auto; justify-content:flex-start; }
  .hero-content { padding-top:76px; padding-bottom:24px; width:calc(100% - 48px); }
  .hero .eyebrow { font-size:7px; letter-spacing:.1em; }
  .hero h1 { font-size:32px; margin:10px 0 12px; line-height:1.04; max-width:400px; }
  .hero-lead { font-size:14px; line-height:1.35; }
  .hero-copy { max-width:370px; font-size:12px; line-height:1.45; margin-top:9px; }
  .hero .button { min-height:44px; font-size:11px; padding:10px 15px; margin-top:12px; }
  .invitation-note { font-size:9px; margin-top:7px; }
  .hero-art { object-position:80% 50%; }
  .hero-bottom { width:calc(50% - 40px); left:auto; right:24px; bottom:12px; gap:12px; }
  .hero-bottom>span:first-child { display:none; }
  .hero-bottom a { font-size:9px; }
  .hero-bottom a span { margin-left:10px; }
  .motion-control { font-size:9px; }
}

/* Native image animation: no video autoplay, sound, or playback interface. */
.hero .hero-art { animation:none!important; transform:none!important; will-change:auto; }
.hero-animation { display:contents; }
.hero-animation .hero-art { opacity:1; }
@media(max-width:650px) { .hero-bottom { justify-content:flex-start; } }

.client-amex img, .client-nasa img { filter:none; opacity:1; }
.client-amex img { width:74px; height:74px; }
.client-nasa img { width:100px; height:82px; }
/* Size cells to each mark, keeping a consistent gap instead of fixed-width slots. */
.client-comcast img { width:155px; height:63px; }
.is-animated .client-logo { flex:0 0 auto; width:auto; padding-inline:34px; }
.is-animated .client-logo img { height:auto; max-height:none; flex-shrink:0; }
/* 1601px per loop / 37.97px per second: 25% faster than the prior ticker. */
.is-animated .client-track { animation-duration:42.16s; }
@media(max-width:650px) {
 .client-amex img { width:64px; height:64px; }
 .client-nasa img { width:86px; height:64px; }
 .client-comcast img { width:135px; height:55px; }
 .is-animated .client-logo { padding-inline:24px; }
 .is-animated .client-track { animation-duration:36.74s; }
}

/* Reference-site wordmark, with a compact mobile footprint. */
.brand-logo { flex-shrink:0; }
.brand-logo img { display:block; width:224px; height:auto; max-width:100%; }
@media(max-width:650px) { .brand-logo img { width:174px; } }

.site-header nav>a.nerd-link { color:var(--cyan); font-weight:600; display:inline-flex; align-items:center; min-height:44px; }
.imagination-signature { font-size:10px; line-height:1.6; font-style:italic; color:#90a1b2; text-align:center; padding:0 0 24px; margin:0; }
.nerd-intro { padding:72px 0; background:radial-gradient(ellipse at 90% 60%,#19364c88,transparent 65%); }
.nerd-intro-grid { display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center; }
.nerd-intro h1 { font-size:clamp(58px,7vw,100px); line-height:1; letter-spacing:-.06em; margin:22px 0; }
.nerd-intro h1 em { color:var(--cyan); }
.nerd-intro h2 { font-size:28px; line-height:1.2; margin-bottom:24px; }
.nerd-intro p:not(.eyebrow) { color:var(--muted); line-height:1.8; }
.nerd-art { display:block; width:100%; height:auto; border:1px solid #607c9344; border-radius:12px; box-shadow:0 24px 80px #0005; }
.nerd-art-link { display:block; }
.nerd-caption { font-size:11px; color:var(--muted); margin-top:12px; }
.nerd-toc { padding:32px 0; border-block:1px solid var(--line); }
.nerd-toc .wrap { display:flex; gap:12px 24px; flex-wrap:wrap; }
.nerd-toc a { font-size:12px; color:var(--cyan); padding:8px 0; }
.nerd-chapter { padding:72px 0; border-bottom:1px solid var(--line); scroll-margin-top:110px; }
.nerd-chapter:nth-child(even) { background:#0c162280; }
.nerd-chapter-grid { display:grid; grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr); gap:80px; }
.nerd-chapter h2 { font-size:clamp(28px,3vw,42px); line-height:1.15; letter-spacing:-.035em; margin:16px 0; }
.nerd-prose p { font-size:16px; line-height:1.85; color:#bccbd7; margin:0 0 22px; }
.nerd-prose h3 { font-size:21px; color:var(--white); line-height:1.45; margin:28px 0 16px; }
.nerd-prose h3:first-child { margin-top:0; }
.nerd-prose .nerd-stat { font-size:70px; line-height:1.1; color:var(--cyan); }
@media(min-width:651px) and (max-width:1000px) { .site-header nav { gap:14px; } .brand-logo img { width:180px; } }
@media(max-width:700px) {
 .nerd-intro { padding:44px 0; }
 .nerd-intro-grid,.nerd-chapter-grid { grid-template-columns:1fr; gap:28px; }
 .nerd-intro h1 { font-size:60px; }
 .nerd-intro h2 { font-size:25px; }
 .nerd-chapter { padding:44px 0; }
 .nerd-prose p { font-size:15px; }
 .nerd-toc .wrap { gap:4px 18px; }
}

/* Legacy artwork anchors the deeper-dive chapters without interrupting the prose. */
.nerd-section-art { margin:32px 0 0; overflow:hidden; border-radius:10px; border:1px solid #8ed9fa33; background:#07111c; box-shadow:0 18px 50px #0003; }
.nerd-section-art img { display:block; width:100%; height:auto; }
.nerd-section-art.portrait { max-width:390px; }
.nerd-engine { position:relative; margin:32px 0 0; padding:24px; border:1px solid #8ed9fa33; border-radius:10px; background:radial-gradient(ellipse,#14384c88,#07111c 75%); display:flex; flex-direction:column; align-items:center; overflow:hidden; }
.nerd-engine::before,.nerd-engine::after { content:''; position:absolute; width:72%; aspect-ratio:1; border:1px solid #8ed9fa18; border-radius:50%; top:15%; pointer-events:none; }
.nerd-engine::after { width:94%; top:5%; }
.nerd-engine picture { position:relative; z-index:1; }
.nerd-engine img { display:block; width:202px; max-width:100%; height:auto; border-radius:6px; }
.nerd-motion-toggle { position:relative; z-index:1; margin-top:16px; min-height:44px; padding:8px 14px; border:1px solid #8ed9fa55; color:#b9e6fa; background:#08121c; font-size:11px; cursor:pointer; }
.nerd-motion-toggle[hidden] { display:none; }
@media(max-width:700px) { .nerd-section-art { margin-top:24px; } .nerd-section-art.portrait { max-width:100%; } .nerd-engine { margin-top:24px; } }

/* Supplied Ark animation in the integrated capabilities section. */
.capabilities .connected-heading { display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1fr); gap:48px; align-items:center; }
.connected-heading h2 { font-size:clamp(34px,3.6vw,52px); }
.connected-heading p { margin:24px 0 0; max-width:440px; }
.connected-art { margin:0; border:1px solid #8ed9fa33; border-radius:12px; overflow:hidden; background:#07111c; box-shadow:0 20px 65px #0004; }
.connected-art picture,.connected-art img { display:block; width:100%; }
.connected-art img { height:auto; aspect-ratio:1000 / 562; object-fit:contain; }
@media(max-width:900px) { .capabilities .connected-heading { grid-template-columns:1fr; gap:28px; } .connected-heading h2 { font-size:clamp(32px,6vw,52px); } .connected-heading p { max-width:none; } }

/* A visual invitation to explore the systems behind human judgment. */
.nerd-invitation { display:grid; grid-template-columns:230px minmax(0,1fr); align-items:center; gap:40px; margin-top:48px; padding:24px; border:1px solid #8ed9fa40; border-radius:14px; background:linear-gradient(120deg,#10243a,#07121f); color:var(--cream); text-decoration:none; }
.nerd-invitation img { display:block; width:100%; height:auto; border-radius:8px; }
.nerd-invitation-copy { padding:12px 16px 12px 0; }
.nerd-invitation h3 { margin:0; font-size:clamp(28px,3vw,40px); line-height:1.12; letter-spacing:-.035em; font-weight:400; }
.nerd-invitation h3 em { font-family:var(--serif); font-weight:400; }
.nerd-invitation p { max-width:520px; margin:18px 0 22px; color:#bac8d7; line-height:1.65; font-size:15px; }
.nerd-invitation-cta { display:inline-flex; align-items:center; gap:24px; color:#a6e4ff; font-size:16px; border-bottom:1px solid #8ed9fa66; padding-bottom:7px; }
.nerd-invitation small { display:block; color:#a1b3c5; font-size:10px; margin-top:10px; }
.nerd-invitation:hover { border-color:#8ed9faa6; background:linear-gradient(120deg,#16304b,#091827); }
.nerd-invitation:focus-visible { outline:3px solid #8ed9fa; outline-offset:5px; }
@media(max-width:600px) { .nerd-invitation { grid-template-columns:1fr; gap:24px; padding:22px; margin-top:32px; } .nerd-invitation img { width:180px; justify-self:center; } .nerd-invitation-copy { padding:0; } .nerd-invitation p { font-size:14px; } }