:root{--ink:var(--text);--night:var(--surface);--paper:var(--bg);--copper:var(--accent);--sand:var(--accent);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:6px}::selection{background:var(--accent);color:var(--surface)}h1,h2,h3,p{margin-top:0}h2{font-size:clamp(32px,3.5vw,48px);font-weight:450;line-height:1.14;letter-spacing:-.045em;margin-bottom:0}h3{font-size:20px;font-weight:500;line-height:1.35;letter-spacing:-.025em}p{line-height:1.75}.wrap{width:min(1280px,calc(100% - 112px));margin-inline:auto}.section-space{padding-block:100px}.eyebrow{text-transform:uppercase;font-size:10px;letter-spacing:.18em;font-weight:650;line-height:1.7;margin-bottom:22px;color:var(--copper)}.skip-link{position:absolute;top:10px;left:10px;z-index:20;padding:14px;background:var(--paper);transform:translateY(-180%)}.skip-link:focus{transform:none}
.hero-shell{position:relative;isolation:isolate;overflow:hidden;color:var(--text);background:radial-gradient(ellipse at 85% 40%,var(--glow),transparent 55%),radial-gradient(ellipse at 65% 100%,var(--glow),transparent 50%),var(--night)}#network{position:absolute;inset:0;width:100%;height:100%;z-index:-2}.hero-shade{position:absolute;inset:0;z-index:-1;pointer-events:none;background:linear-gradient(90deg,var(--hero-solid) 0%,var(--hero-solid) 26%,var(--hero-fade) 53%,transparent 80%),linear-gradient(0deg,var(--hero-fade),transparent 30%)}.site-header{position:absolute;z-index:5;top:0;left:50%;transform:translateX(-50%);min-height:100px;display:flex;align-items:center;justify-content:space-between;gap:30px;border-bottom:1px solid var(--line);color:var(--text)}.brand{display:inline-flex;align-items:center;gap:9px;font-size:21px;letter-spacing:.035em;font-weight:600;white-space:nowrap}.brand span{font-size:11px;letter-spacing:.2em;font-weight:400;color:var(--muted)}.brand svg{width:30px;height:30px;overflow:visible;color:var(--sand);stroke:none;fill:currentColor;margin-right:7px}nav{display:flex;gap:30px;align-items:center;font-size:12px}nav a{padding:13px 0}nav a:hover{color:var(--sand)}nav .nav-cta{border:1px solid var(--line);border-radius:3px;padding:12px 17px}.nav-cta span{margin-left:24px}.hero{padding-top:208px;padding-bottom:118px;position:relative}.hero .eyebrow{color:var(--muted)}.hero h1{font-size:clamp(50px,5.5vw,80px);line-height:1.045;font-weight:440;letter-spacing:-.055em;margin-bottom:30px}.hero h1 em{color:var(--sand);font-weight:400;font-family:inherit;font-style:normal;letter-spacing:-.05em}.hero-description{font-size:17px;line-height:1.75;color:var(--muted);max-width:450px;margin-bottom:32px}.hero-actions{display:flex;align-items:center;gap:28px}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:50px;padding:17px 23px;min-height:53px;font-size:13px;font-weight:600;border-radius:3px;transition:background .2s,transform .2s}.button:hover{transform:translateY(-2px)}.button.light{background:var(--button);color:var(--button-text)}.button.light:hover{background:var(--button-hover)}.button.dark{background:var(--button);color:var(--button-text)}.button.dark:hover{background:var(--button-hover)}.text-link{font-size:12px;color:var(--muted);padding-block:15px}.text-link span{margin-left:12px}.hero-foot{display:flex;justify-content:space-between;align-items:center;gap:20px;padding-block:21px;border-top:1px solid var(--line);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}.hero-foot button{background:none;border:0;color:inherit;font-size:10px;padding:7px;letter-spacing:.06em}.hero-foot button span{margin-left:10px}.network-label{fill:var(--muted);font-size:10px;letter-spacing:2px;font-family:inherit}.network-label-bg{fill:var(--surface);stroke:var(--line);stroke-width:1}
.section-intro{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:end}.intro-copy{max-width:470px;font-size:16px;color:var(--muted);margin-bottom:0}.intro-copy p:last-child{margin-bottom:0}.intro-copy strong{font-weight:550;color:var(--ink)}.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:45px;margin-top:62px}.principles article{border-top:1px solid var(--line);padding-top:25px}.principle-mark{color:var(--copper);font-size:25px}.principles h3{margin:24px 0 13px}.principles p{font-size:14px;color:var(--muted);margin:0;max-width:340px}.quiet-note{margin:37px 0 0;font-size:12px;color:var(--muted);line-height:1.8}
.applications{background:var(--surface-soft)}.case-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:48px}.case-card{display:flex;flex-direction:column;padding:30px 34px 28px;border:1px solid var(--line);border-radius:5px;transition:transform .2s,box-shadow .2s;background:var(--paper)}.case-card:hover{transform:translateY(-5px);box-shadow:0 16px 30px var(--shadow)}.safety-card{background:var(--surface)}.history-card{background:var(--surface)}.case-top{display:flex;align-items:center;justify-content:space-between}.case-top .eyebrow{margin:0}.card-arrow{font-size:22px;color:var(--copper)}.case-illustration{display:flex;align-items:center;justify-content:center;height:158px;margin-block:14px 22px;position:relative;background:radial-gradient(ellipse,var(--glow),transparent 66%)}.mini-node{border:1px solid var(--line);border-radius:50%;width:90px;height:90px;display:flex;align-items:center;justify-content:center;text-align:center;flex-shrink:0;font-size:12px;background:var(--surface);box-shadow:0 0 0 8px var(--glow);line-height:1.4}.mini-node.condition{border-color:var(--line);background:var(--surface)}.mini-link{position:relative;flex:1;max-width:175px;min-width:65px;display:flex;align-items:center;justify-content:center;height:32px}.mini-link i{height:1px;background:var(--accent);width:100%;position:absolute}.mini-link i::after{content:"";position:absolute;right:0;top:-3px;width:6px;height:6px;border-right:1px solid var(--accent);border-top:1px solid var(--accent);transform:rotate(45deg)}.mini-link small{position:relative;background:var(--surface);font-size:8px;letter-spacing:.08em;line-height:1.5;padding:5px;text-align:center}.history-card .mini-link small{background:var(--surface)}.case-kicker{font-size:11px;letter-spacing:.015em;color:var(--copper);margin-bottom:12px}.case-card h3{font-size:29px;letter-spacing:-.04em;line-height:1.18;min-height:70px;margin-bottom:18px}.case-card>p:not(.case-kicker){font-size:14px;color:var(--muted);margin-bottom:27px}.case-action{display:flex;justify-content:space-between;gap:20px;margin-top:auto;padding-top:21px;border-top:1px solid var(--line);font-size:12px;font-weight:600}.demo-note{font-size:12px;color:var(--muted);margin:26px 0 0;line-height:1.9}
.approach-grid{display:grid;grid-template-columns:1fr 1fr;gap:95px;align-items:center}.connection-story{background:var(--night);border-radius:4px;color:var(--text);padding:42px;position:relative;overflow:hidden;background-image:radial-gradient(var(--grid) 1px,transparent 1px),radial-gradient(ellipse at 70% 60%,var(--glow),transparent 65%);background-size:22px 22px,auto}.connection-story .eyebrow{color:var(--muted);font-size:9px;margin-bottom:46px}.story-subject,.story-object{display:flex;align-items:center;gap:22px}.story-dot{display:block;height:18px;width:18px;border-radius:50%;border:1px solid var(--sand);background:var(--node-fill);box-shadow:0 0 0 8px var(--glow);flex-shrink:0}.story-object .story-dot{border-color:var(--accent-alt);background:var(--node-fill)}.connection-story h3{font-size:23px;font-weight:450;margin:0 0 8px}.story-subject p,.story-object p{font-size:11px;color:var(--muted);margin:0}.story-relation{margin-left:8px;border-left:1px solid var(--line);height:94px;display:flex;align-items:center;padding-left:32px}.story-relation span{border:1px solid var(--line);padding:6px 14px;border-radius:30px;font-size:10px;color:var(--accent)}.story-source{display:flex;gap:17px;border-top:1px solid var(--line);margin-top:40px;padding-top:23px;color:var(--accent)}.story-source p{font-size:12px;line-height:1.5;margin:0}.story-source small{display:block;font-size:10px;color:var(--muted);margin-top:6px}.story-caption{font-size:9px;color:var(--muted);margin:29px 0 0}.approach-copy h2{margin-bottom:28px}.approach-copy p{font-size:14px;color:var(--muted)}.approach-copy .lead{font-size:18px;color:var(--ink)}.approach-copy .eyebrow{font-size:10px;color:var(--copper)}.approach-copy p:last-child{margin-bottom:0}
.graphrag{background:var(--surface-soft)}.reasoning-flow{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:40px;padding:0;margin:50px 0 0}.reasoning-flow li{padding-top:20px;border-top:1px solid var(--line)}.flow-step{font-family:ui-monospace,monospace;font-size:11px;color:var(--copper)}.reasoning-flow h3{margin:24px 0 13px;font-size:20px}.reasoning-flow p{font-size:14px;color:var(--muted);margin:0}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;border-block:1px solid var(--line);padding:35px 0;margin:48px 0 36px}.metrics dt{font-size:58px;line-height:1.2;letter-spacing:-.055em;font-weight:400}.metrics dd{margin:10px 0 0;color:var(--muted);font-size:12px;line-height:1.7}.status-notes{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}.status-notes h3{font-size:18px;margin-bottom:14px}.status-notes p{font-size:13px;color:var(--muted);margin-bottom:0}.future-directions{margin-top:44px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}.future-directions summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;padding-block:22px;color:var(--ink)}.future-directions summary::-webkit-details-marker{display:none}.future-directions>div{display:grid;grid-template-columns:1fr 1fr;gap:60px;padding:12px 0}.future-directions h3{font-size:17px}.future-directions>p{font-size:12px}.closing{background:var(--surface-soft)}.closing-inner{display:flex;align-items:center;justify-content:space-between;gap:40px}.closing h2 em{font-family:inherit;font-style:normal;font-weight:400;color:var(--accent)}.site-footer{background:var(--night);color:var(--muted);padding-block:34px}.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}.site-footer .brand{color:var(--text);font-size:18px}.site-footer p{font-size:10px;line-height:1.9;margin-bottom:0}.back-top{font-size:11px}
@media(min-width:1600px){.hero{padding-top:230px;padding-bottom:142px}}
@media(max-width:1000px){.wrap{width:calc(100% - 64px)}.section-space{padding-block:75px}.section-intro{gap:45px}.hero{padding-top:185px;padding-bottom:100px}.hero h1{font-size:62px}.approach-grid{gap:40px}.connection-story{padding:30px}.case-card{padding:26px}.case-card h3{font-size:25px}.principles,.reasoning-flow,.status-notes{gap:28px}.mini-node{width:78px;height:78px;font-size:11px}.mini-link small{font-size:7px}nav{gap:22px}.brand{font-size:18px}}
@media(max-width:700px){.wrap{width:calc(100% - 40px)}.site-header{min-height:82px;gap:15px}.brand{font-size:17px;gap:6px}.brand svg{width:25px;height:25px;margin-right:3px}.brand span{font-size:9px}nav{gap:0}nav>a:not(.nav-cta){display:none}nav .nav-cta{font-size:10px;padding:11px}.nav-cta span{margin-left:8px}.hero{padding-top:163px;padding-bottom:88px}.hero h1{font-size:clamp(44px,8vw,59px);line-height:1.08}.hero-shade{background:linear-gradient(90deg,var(--hero-solid),var(--hero-fade) 80%),linear-gradient(0deg,var(--hero-fade),transparent 35%)}.hero-description{font-size:15px;max-width:340px}.hero-actions{gap:21px;flex-wrap:wrap}.button{font-size:12px;padding:16px 19px;gap:30px}.text-link{font-size:11px}.hero-foot{font-size:8px;letter-spacing:.04em;gap:10px}.hero-foot button{font-size:9px;white-space:nowrap}.eyebrow{font-size:9px;margin-bottom:19px}.section-space{padding-block:58px}.section-intro{grid-template-columns:1fr;gap:25px}h2{font-size:34px}.intro-copy{font-size:15px}.principles{grid-template-columns:1fr;gap:27px;margin-top:35px}.principles article{padding-top:18px}.principles h3{margin-top:12px}.principle-mark{float:right}.principles p{max-width:none}.quiet-note{font-size:11px;margin-top:27px}.case-grid{grid-template-columns:1fr;gap:20px;margin-top:34px}.case-card{padding:24px}.case-card h3{min-height:0;font-size:27px}.case-illustration{height:134px;margin-block:8px 20px}.mini-node{width:84px;height:84px}.mini-link small{font-size:7px}.case-card>p:not(.case-kicker){font-size:13px}.demo-note{font-size:11px}.approach-grid{grid-template-columns:1fr;gap:38px}.connection-story{padding:32px}.approach-copy{grid-row:1}.reasoning-flow{grid-template-columns:1fr;gap:28px;margin-top:34px}.reasoning-flow h3{margin-top:15px}.metrics{gap:15px;padding-block:25px;margin-top:32px}.metrics dt{font-size:44px}.metrics dd{font-size:10px}.status-notes{grid-template-columns:1fr;gap:25px}.future-directions>div{grid-template-columns:1fr;gap:15px}.closing-inner{flex-direction:column;align-items:flex-start;gap:30px}.footer-inner{flex-wrap:wrap;gap:22px}.site-footer p{order:3;width:100%}.back-top{margin-left:auto}}
@media(max-width:360px){.brand svg{display:none}.hero h1{font-size:40px}.hero-actions{gap:12px}.hero-foot>span{max-width:155px}.case-card{padding:20px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}

/* DCSN's light-page composition keeps a navy hero and evidence illustration. */
:root[data-theme="light"] :is(.hero-shell,.site-header,.site-footer,.connection-story){--text:#f5fafa;--muted:#d3edf0;--accent:#79e5db;--accent-alt:#65d9cd;--line:#72b9bf55;--surface:#061321;--night:#061321;--sand:#79e5db;--copper:#79e5db;--button:#66e0d0;--button-hover:#98f1e5;--button-text:#08242b;--hero-solid:#061321f2;--hero-fade:#06132180;--node-fill:#166c7066;--glow:#21979b35;--grid:#65d9cd22}

:root[data-theme="light"] .case-card{box-shadow:0 8px 26px var(--shadow)}
:root[data-theme="light"] #network line{stroke-width:1.15}

/* Native disclosures keep detail accessible without lengthening the overview. */
.disclosure-icon::before{content:"+";font-size:23px;line-height:1}.future-directions[open] .disclosure-icon::before{content:"−"}.disclosure-icon{margin-left:20px;flex-shrink:0}.future-directions summary{font-weight:600;align-items:center;gap:15px}.future-directions .detail-intro{font-size:15px;max-width:840px;margin:8px 0 25px}.future-directions .detail-grid{gap:32px 48px;padding-bottom:30px}.detail-grid article{border-top:1px solid var(--line);padding-top:24px}.detail-grid h3{font-size:21px;margin-bottom:14px}.detail-grid p{font-size:14px}.detail-grid .eyebrow{font-size:10px;margin-bottom:12px}.application-tagline{color:var(--ink)}.detail-link{display:inline-block;color:var(--accent);font-weight:600;font-size:13px;padding-block:10px;text-decoration:underline;text-underline-offset:5px}.download-panel{margin-top:45px;padding:32px;border:1px solid var(--line);border-radius:5px;background:var(--surface-soft);display:grid;grid-template-columns:1fr auto;gap:45px;align-items:center}.download-panel h3{font-size:27px;margin-bottom:14px}.download-panel p{font-size:14px;color:var(--muted);max-width:710px}.download-panel .eyebrow{font-size:10px;color:var(--accent)}.download-panel .download-meta{font-size:12px;margin-bottom:0}.download-actions{display:flex;flex-direction:column;align-items:flex-start;gap:10px}@media(max-width:700px){.download-panel{grid-template-columns:1fr;gap:20px;padding:24px}.future-directions .detail-grid{gap:20px}.detail-grid h3{font-size:20px}}