:root{
  --psi-navy:#0A1D3D;
  --psi-blue:#1565C0;
  --psi-accent:#4DA3FF;
  --psi-teal:#00B4A6;
  --psi-charcoal:#1A1F28;
  --psi-slate:#5B6472;
  --psi-gray:#E6E9EF;
  --psi-soft:#F4F6F9;
  --psi-white:#FFFFFF;
  --site-width:1180px;
  --header-height:78px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--psi-charcoal);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;font-size:17px;line-height:1.6}
img{max-width:100%;height:auto}
a{color:var(--psi-blue)}
button,input,select,textarea{font:inherit}
.site-shell{width:min(calc(100% - 48px),var(--site-width));margin-inline:auto}
.narrow-shell{max-width:840px}
.screen-reader-text{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link:focus{position:fixed!important;top:12px;left:12px;width:auto;height:auto;margin:0;clip:auto;background:#fff;color:#000;padding:10px 14px;z-index:9999;border-radius:6px}
.site-header{position:sticky;top:0;z-index:100;background:rgba(10,29,61,.96);backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.1)}
.header-inner{height:var(--header-height);display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;flex:0 0 auto}
.brand-logo{display:block;width:300px;max-width:42vw;height:auto}
.custom-logo{display:block;max-height:48px;width:auto}
.primary-navigation{display:flex;align-items:center;gap:24px}
.psirl-menu{display:flex;align-items:center;gap:25px;list-style:none;margin:0;padding:0}
.psirl-menu a{text-decoration:none;color:rgba(255,255,255,.82);font-size:15px}
.psirl-menu a:hover,.psirl-menu a:focus{color:#fff}
.menu-toggle{display:none;background:transparent;border:0;width:42px;height:42px;padding:9px;cursor:pointer}
.menu-toggle span:not(.screen-reader-text){display:block;height:2px;background:#fff;margin:5px 0}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 20px;background:var(--psi-blue);color:#fff;text-decoration:none;border:0;border-radius:9px;font-weight:650;transition:.2s ease}
.button:hover,.button:focus{background:#1e73cf;color:#fff;transform:translateY(-1px)}
.button-small{min-height:40px;padding:8px 15px;font-size:14px}
.button-ghost{background:transparent;border:1px solid rgba(255,255,255,.42)}
.button-ghost:hover,.button-ghost:focus{background:rgba(255,255,255,.08)}
.button-dark{background:var(--psi-navy)}
.hero{position:relative;min-height:720px;color:#fff;background:linear-gradient(120deg,#07152d 0%,#0A1D3D 50%,#123664 100%);overflow:hidden}
.hero-video,.hero-poster{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-poster{background-size:cover;background-position:center}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,21,45,.90),rgba(10,29,61,.72) 55%,rgba(10,29,61,.55))}
.hero-grid{position:absolute;inset:0;opacity:.11;background-image:linear-gradient(rgba(255,255,255,.17) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.17) 1px,transparent 1px);background-size:48px 48px;mask-image:linear-gradient(90deg,transparent 0%,black 40%,black 100%)}
.hero-layout{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center;padding-block:110px}
.hero-copy h1{font-size:clamp(48px,6vw,76px);line-height:1.02;letter-spacing:-.035em;margin:16px 0 0;color:#fff;max-width:780px}
.hero-subtitle{font-size:clamp(24px,2.5vw,34px);margin:20px 0 0;color:rgba(255,255,255,.94)}
.hero-description{max-width:690px;font-size:19px;color:rgba(255,255,255,.72);margin:24px 0 0}
.button-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.eyebrow{color:var(--psi-teal);font-size:13px;font-weight:800;text-transform:uppercase;letter-spacing:.15em}
.eyebrow-light{color:#7ee8df}
.flowcast-hero-card{border:1px solid rgba(255,255,255,.15);background:rgba(7,21,45,.5);backdrop-filter:blur(12px);padding:28px;border-radius:18px}
.card-kicker{font-size:12px;letter-spacing:.13em;color:rgba(255,255,255,.58);font-weight:750}
.flowcast-hero-card h2{font-size:28px;color:#fff;margin:5px 0 24px}
.flowcast-equation{display:grid;grid-template-columns:1fr auto 1fr;gap:12px;align-items:center}
.flowcast-node{border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.05);padding:16px;border-radius:12px}
.flowcast-node span,.flowcast-node strong{display:block}
.flowcast-node span{font-size:12px;color:rgba(255,255,255,.55);text-transform:uppercase;letter-spacing:.08em}
.flowcast-node strong{font-size:16px;margin-top:6px}
.flowcast-arrow{color:var(--psi-accent);font-size:25px}
.gradient-line{height:2px;background:linear-gradient(90deg,var(--psi-accent),var(--psi-teal));margin:24px 0}
.flowcast-output{display:flex;justify-content:space-between;gap:20px;font-size:14px}
.flowcast-output span{color:rgba(255,255,255,.62)}
.flowcast-output strong{color:#8ef0e7}
.scale-row{display:grid;grid-template-columns:repeat(3,1fr);text-align:center;margin-top:22px}
.scale-row strong,.scale-row small{display:block}
.scale-row strong{font-size:23px}
.scale-row small{color:rgba(255,255,255,.5);font-size:11px}
.section{padding-block:96px}
.section-white{background:#fff}
.section-soft{background:var(--psi-soft)}
.section-navy{background:var(--psi-navy);color:#fff}
.split-intro{display:grid;grid-template-columns:.9fr 1.1fr;gap:90px}
.section h2{font-size:clamp(36px,4.2vw,54px);line-height:1.08;letter-spacing:-.025em;color:var(--psi-navy);margin:14px 0 0}
.prose-lg{font-size:19px;color:var(--psi-slate)}
.prose-lg p{margin:0 0 20px}
.statement{color:var(--psi-navy);font-weight:650}
.statement-large{color:var(--psi-navy);font-size:28px;font-weight:700}
.accent-rule{height:3px;width:58px;background:var(--psi-teal);margin:30px 0}
.section-heading{max-width:850px}
.section-heading>p{font-size:19px;color:var(--psi-slate);max-width:760px}
.heading-light h2{color:#fff}
.heading-light>p{color:rgba(255,255,255,.68)}
.flowcast-showcase{margin-top:46px}
.flowcast-tabs{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:18px}
.flowcast-tab{background:#fff;border:1px solid #d8e0e9;color:var(--psi-slate);border-radius:8px;padding:10px 14px;cursor:pointer;font-weight:650}
.flowcast-tab.is-active,.flowcast-tab[aria-selected="true"]{border-color:var(--psi-blue);background:#eaf4ff;color:var(--psi-blue)}
.flowcast-content-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:24px}
.flowcast-module-copy,.flowcast-screen{background:#fff;border:1px solid #dae2eb;border-radius:18px;padding:28px}
.flowcast-module-copy .card-kicker{color:var(--psi-slate)}
.flowcast-module-copy h3{color:var(--psi-navy);font-size:30px;margin:6px 0 12px}
.flowcast-module-copy p{color:var(--psi-slate)}
.question-box{margin-top:28px;background:#f2f6fa;border-radius:12px;padding:16px}
.question-box span,.question-box strong{display:block}
.question-box span{font-size:13px;color:var(--psi-slate)}
.question-box strong{color:var(--psi-navy);font-size:18px;margin-top:3px}
.flowcast-screen{padding:0;overflow:hidden;min-height:380px}
.flowcast-screen>img{display:block;width:100%;height:100%;object-fit:cover}
.screen-toolbar{height:48px;background:var(--psi-navy);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 18px;font-size:13px}
.screen-body{display:grid;grid-template-columns:56px 1fr;min-height:330px}
.screen-side{background:#eef2f7;padding-top:22px;display:flex;align-items:center;flex-direction:column;gap:16px}
.screen-dot{width:11px;height:11px;border-radius:50%;background:#bcc7d5}
.screen-dot.is-on{background:var(--psi-teal)}
.screen-main{padding:36px}
.screen-label{font-size:12px;letter-spacing:.09em;color:var(--psi-slate)}
.screen-network{display:grid;grid-template-columns:1fr 52px 1.15fr 52px 1fr;align-items:center;margin-top:40px}
.screen-box{border:1px solid #d1dbe7;border-radius:9px;padding:14px;text-align:center;color:var(--psi-navy);font-weight:650}
.screen-box.active{border-color:var(--psi-blue);background:#eef6ff}
.screen-link{height:2px;background:linear-gradient(90deg,var(--psi-blue),var(--psi-teal))}
.screen-bars{display:grid;gap:9px;margin:40px 0 24px}
.screen-bars:before,.screen-bars span{content:"";display:block;height:9px;border-radius:20px;background:linear-gradient(90deg,var(--psi-blue),var(--psi-teal))}
.screen-bars:before{width:92%;opacity:.3}
.screen-main small{color:var(--psi-slate)}
.physics-chain{display:grid;grid-template-columns:1fr auto 1fr auto 1fr auto 1fr auto 1fr;align-items:center;gap:12px;margin-top:50px}
.physics-chain>div{border:1px solid rgba(255,255,255,.15);background:rgba(255,255,255,.05);padding:18px;border-radius:12px;min-height:105px}
.physics-chain span,.physics-chain strong{display:block}
.physics-chain span{font-size:12px;color:rgba(255,255,255,.45)}
.physics-chain strong{font-size:16px;margin-top:10px}
.physics-chain>b{color:var(--psi-accent);font-size:23px}
.dark-punchline{font-size:clamp(28px,3vw,40px);font-weight:700;line-height:1.15;border-top:1px solid rgba(255,255,255,.12);padding-top:34px;margin:46px 0 0}
.media-split{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.lab-media{min-height:420px;border-radius:18px;position:relative;overflow:hidden;background:linear-gradient(145deg,#122746,#0A1D3D 55%,#164570);background-size:cover;background-position:center}
.lab-media:before{content:"";position:absolute;width:280px;height:280px;border-radius:50%;border:30px solid rgba(77,163,255,.14);right:-60px;bottom:-80px}
.lab-media-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,21,45,.78),rgba(10,29,61,.28))}
.lab-media-copy{position:absolute;z-index:2;left:28px;right:28px;bottom:30px;color:#fff}
.lab-media-copy span,.lab-media-copy strong,.lab-media-copy small{display:block}
.lab-media-copy span{font-size:12px;letter-spacing:.1em;color:rgba(255,255,255,.55)}
.lab-media-copy strong{font-size:34px;line-height:1.12;margin-top:8px}
.lab-media-copy small{margin-top:16px;color:rgba(255,255,255,.6)}
.media-split>div:last-child>p{color:var(--psi-slate)}
.media-split .lead{font-size:24px;color:var(--psi-navy)!important;font-weight:650}
.process-list{display:grid;gap:18px;margin-top:28px}
.process-list>div{border-left:3px solid var(--psi-blue);padding-left:16px}
.process-list strong,.process-list span{display:block}
.process-list strong{color:var(--psi-navy);font-size:14px}
.process-list span{color:var(--psi-slate);font-size:15px;margin-top:2px}
.platform-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:75px}
.platform-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.platform-grid article{background:#fff;border:1px solid #dbe3ec;border-radius:15px;padding:22px}
.platform-grid span,.platform-grid strong{display:block}
.platform-grid span{font-size:13px;color:var(--psi-slate)}
.platform-grid strong{font-size:34px;color:var(--psi-navy);margin-top:5px}
.platform-grid p{color:var(--psi-slate);font-size:14px}
.callout-band{background:var(--psi-navy);color:#fff;border-radius:16px;padding:28px;margin-top:42px;display:grid;grid-template-columns:.85fr 1.15fr;gap:60px;align-items:center}
.callout-band span,.callout-band strong{display:block}
.callout-band span{font-size:12px;letter-spacing:.12em;color:rgba(255,255,255,.5)}
.callout-band strong{font-size:25px;margin-top:4px}
.callout-band p{color:rgba(255,255,255,.66);margin:0}
.point-section{max-width:880px}
.point-section>p{font-size:19px;color:var(--psi-slate);max-width:760px}
.scale-mantra{display:flex;flex-wrap:wrap;gap:14px;align-items:center;color:var(--psi-navy);font-size:20px;font-weight:700;margin-top:36px}
.scale-mantra b{color:var(--psi-accent)}
.contact-layout{display:grid;grid-template-columns:1fr auto;gap:60px;align-items:end}
.contact-layout h2{color:#fff}
.contact-layout p{max-width:760px;color:rgba(255,255,255,.7);font-size:19px}
.site-footer{background:#07152d;color:#fff;padding:52px 0 26px}
.footer-grid{display:grid;grid-template-columns:1fr auto;gap:60px}
.footer-brand img{display:block;width:310px;max-width:100%}
.footer-tag{color:rgba(255,255,255,.55);font-size:14px}
.footer-links,.footer-menu{display:grid;grid-template-columns:repeat(2,minmax(120px,1fr));gap:8px 30px;list-style:none;margin:0;padding:0}
.footer-links a,.footer-menu a{color:rgba(255,255,255,.68);text-decoration:none;font-size:14px}
.footer-links a:hover,.footer-menu a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:38px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:rgba(255,255,255,.4);font-size:12px}
.content-main{padding:100px 0 120px}
.content-header{margin-bottom:42px}
.content-header h1{font-size:clamp(40px,5vw,64px);line-height:1.05;color:var(--psi-navy);margin:12px 0}
.entry-content{font-size:18px}
.entry-content h2,.entry-content h3{color:var(--psi-navy)}
.entry-content img{border-radius:12px}
.post-list{display:grid;gap:22px}
.post-card{border-bottom:1px solid var(--psi-gray);padding:0 0 28px}
.post-card h2{margin:3px 0 8px}
.post-card h2 a{text-decoration:none;color:var(--psi-navy)}
.post-meta{font-size:13px;color:var(--psi-slate)}
.featured-image{margin-bottom:36px}
.featured-image img{border-radius:14px}
@media (max-width:980px){
  .hero-layout,.split-intro,.flowcast-content-grid,.media-split,.platform-layout,.contact-layout{grid-template-columns:1fr}
  .hero-layout{gap:45px;padding-block:85px}
  .physics-chain{grid-template-columns:1fr}
  .physics-chain>b{transform:rotate(90deg);text-align:center}
  .platform-grid{grid-template-columns:repeat(3,1fr)}
  .callout-band{grid-template-columns:1fr;gap:18px}
}
@media (max-width:820px){
  :root{--header-height:70px}
  .site-shell{width:min(calc(100% - 34px),var(--site-width))}
  .menu-toggle{display:block}
  .primary-navigation{display:none;position:absolute;top:var(--header-height);left:0;right:0;background:var(--psi-navy);padding:20px 18px 26px;border-top:1px solid rgba(255,255,255,.1);align-items:stretch}
  .primary-navigation.is-open{display:flex;flex-direction:column}
  .psirl-menu{flex-direction:column;align-items:flex-start;gap:0;width:100%}
  .psirl-menu li{width:100%}
  .psirl-menu a{display:block;padding:11px 0;width:100%}
  .nav-cta{align-self:flex-start;margin-top:8px}
  .brand-logo{width:245px;max-width:62vw}
  .section{padding-block:72px}
  .hero{min-height:auto}
  .hero-copy h1{font-size:48px}
  .flowcast-equation{grid-template-columns:1fr}
  .flowcast-arrow{transform:rotate(90deg);text-align:center}
  .flowcast-output{flex-direction:column;gap:4px}
  .screen-network{grid-template-columns:1fr;gap:10px}
  .screen-link{height:20px;width:2px;justify-self:center}
  .screen-body{grid-template-columns:42px 1fr}
  .screen-main{padding:25px 18px}
  .platform-grid{grid-template-columns:1fr}
  .footer-grid,.footer-bottom{grid-template-columns:1fr;display:grid}
  .footer-links,.footer-menu{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
  body{font-size:16px}
  .hero-copy h1{font-size:41px}
  .hero-subtitle{font-size:24px}
  .scale-row{grid-template-columns:1fr;gap:14px}
  .flowcast-tabs{display:grid;grid-template-columns:1fr 1fr}
  .flowcast-tab{text-align:left}
  .flowcast-screen{min-height:320px}
  .screen-body{grid-template-columns:1fr}
  .screen-side{display:none}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important}
}

.scope-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px;align-items:start}
.scope-grid{display:grid;gap:14px}
.scope-grid article{border:1px solid #dbe3ec;border-radius:14px;padding:22px;background:#fff}
.scope-grid article>span{display:block;color:var(--psi-teal);font-size:12px;font-weight:800;letter-spacing:.12em}
.scope-grid h3{color:var(--psi-navy);font-size:21px;line-height:1.25;margin:8px 0}
.scope-grid p{color:var(--psi-slate);margin:0}
.scope-note{grid-column:1/-1;margin-top:6px;background:#f4f7fb;border-left:4px solid var(--psi-blue);padding:20px 22px;border-radius:8px;color:var(--psi-slate)}
.scope-note strong{color:var(--psi-navy);margin-right:6px}
@media (max-width:980px){.scope-layout{grid-template-columns:1fr}}

.contract-language-line{margin-top:14px!important;color:var(--psi-navy)!important;font-size:15px!important;letter-spacing:.01em}