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.brand-mark{width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:var(--ink);color:var(--paper);transform:rotate(-5deg);font-family:var(--body);line-height:1}
.brand-mark .icon{width:33px;height:33px;stroke-width:2.5}.brand-mark span{display:none}.brand-dot{color:#ffd400}
.header nav{font-size:15px;font-weight:550;gap:28px}.search-link{border:1.5px solid var(--ink);border-radius:0;font-size:14px;padding:12px 17px}
.home-hero{position:relative;background:#000000;color:#ffffff;min-height:640px;padding:56px 4% 50px 6%;gap:35px;grid-template-columns:1fr 1.12fr;overflow:hidden;max-width:none}
.home-hero::after{content:'';position:absolute;height:8px;left:0;bottom:0;right:0;background:linear-gradient(to right,#ffd400 0 25%,#ffd400 25% 50%,#ffd400 50% 75%,#ffd400 75%)}
.hero-copy .edition{color:#ffffff;font-family:var(--body);font-size:11px;letter-spacing:1.6px;font-weight:600;margin-bottom:28px}.live-dot{background:#ffd400;box-shadow:none;width:8px;height:8px}
.hero-copy h1{font-family:var(--display);font-size:clamp(65px,6.8vw,108px);line-height:1.08;letter-spacing:-.012em;margin-bottom:24px;font-weight:400;text-transform:uppercase}
.hero-copy h1 em{font-family:var(--display);font-weight:400;font-style:normal;letter-spacing:-.012em;background:#ffd400;color:#000000;display:inline-block;padding:0 .075em .015em;transform:rotate(-1.2deg);margin:.03em 0 .025em -.075em}
.hero-copy>p{color:#cccccc;font-size:17px;line-height:1.55;max-width:410px}.hero-copy .button.dark{background:#ffffff;color:#000000;border-color:#ffffff}
.hero-foot{color:#999999;font-family:var(--body);font-size:11px;font-weight:500}.hero-foot span+span{border-color:#333333}
.hero-art{position:relative;margin:0;background:#ffffff;color:#000000;transform:rotate(1.6deg);box-shadow:10px 10px 0 #ffd400;align-self:center;padding:15px 10px 18px;border:1px solid #ffffff}
.hero-art::before{content:'FIELD MAP / 001';font:10px var(--mono);letter-spacing:2px;position:absolute;top:18px;left:22px}
.city-map{width:100%;margin-top:10px}.art-caption{font-family:var(--body);font-size:10px;color:#333333;gap:10px}.map-legend{margin-top:-20px;gap:10px}.map-legend button{font-family:var(--body);font-size:11px;min-height:32px}.map-legend .motion-toggle{border-radius:0;border-color:#666666}.map-legend i{border-color:#333333}.map-legend button[aria-pressed=true]{border-bottom-width:3px}
.button{font-family:var(--body);font-weight:600;font-size:14px;border-radius:0;border-width:1.5px;min-height:50px;padding:15px 23px}.button.dark:hover{background:#333333}.button.outline{border-color:#000000}.text-link{font-family:var(--body);font-size:14px;font-weight:550;border-bottom-width:1.5px}
.intro-strip{background:#ffd400;color:#000000;border:0;padding:27px 6%}.intro-strip .eyebrow{color:#000000;font-family:var(--body);font-size:11px;font-weight:650}.intro-strip>p{font-family:var(--display);font-size:30px;text-transform:uppercase;line-height:1.16;letter-spacing:.1px;max-width:710px}.intro-arrow{font-size:55px}
.section{padding-top:70px;padding-bottom:70px}.section-heading h2{font-size:38px;letter-spacing:-1.2px}.eyebrow{font-family:var(--body);font-size:11px;font-weight:650;letter-spacing:1.6px;color:#333333}.tiny{font-size:10px}.section-heading{margin-bottom:32px}
.system-grid{border:0;gap:16px}.system-card{background:var(--accent);color:#000000;border:0;padding:25px;transition:transform .2s}.system-card:hover{background:var(--accent);transform:translateY(-4px);color:#000000}.system-card>.tiny{font-family:var(--body);font-size:11px;font-weight:650;letter-spacing:1px;color:#000000}.system-card-icon{height:155px;justify-content:flex-start;padding-left:3px}.system-card-icon .icon{width:70px;height:70px;padding:0;border-radius:0;background:none;box-shadow:none;stroke-width:2.1}.system-card h3{font-family:var(--display);font-size:37px;text-transform:uppercase;font-weight:400;letter-spacing:.1px}.system-card p{color:#000000;font-size:14px;line-height:1.5}.system-card .card-end{border-top:1px solid #00000080;padding-top:17px;font-family:var(--body);font-size:11px}.system-card .card-end>span:last-child{font-size:26px}
.journeys-section{border-top:2px solid var(--ink)}.journey-card{border:1px solid #999999;background:#ffffff;padding:24px;box-shadow:none}.journey-card:hover{box-shadow:4px 5px 0 var(--accent)}.journey-top{font-family:var(--body);font-size:10px;font-weight:550}.family-label{font-family:var(--body);font-size:12px;font-weight:550;letter-spacing:.2px}.journey-number{font-family:var(--display);font-size:60px;line-height:1;min-width:85px;letter-spacing:0;background:none;position:relative;isolation:isolate;margin:28px 0}.journey-number::before{content:'';position:absolute;inset:auto -8px -2px -6px;height:23px;background:var(--accent);z-index:-1;transform:rotate(-3deg)}.journey-number span{font-family:var(--body);font-size:30px}.journey-card h3{font-size:25px;font-weight:650;line-height:1.13;letter-spacing:-.7px}.journey-card p{font-size:14px}.card-end{font-family:var(--body);font-size:11px}.journey-card .card-end{font-weight:500}
.lab-promo{background:#000000;color:#ffffff;position:relative;border:0}.lab-promo h2{font-family:var(--display);font-size:68px;font-weight:400;text-transform:uppercase;letter-spacing:0;line-height:1.05}.lab-promo .eyebrow{color:#ffd400}.lab-promo p{color:#cccccc;font-size:16px}.dependency-origin{background:#ffd400;color:#000000;font-family:var(--body);font-size:12px;font-weight:650;border:0;transform:rotate(-2deg)}.dependency-art>div span{font-family:var(--display);font-size:29px;text-transform:uppercase;color:#000000;border:0}.dependency-art>div span:nth-child(1){background:#ffd400;transform:rotate(-4deg)}.dependency-art>div span:nth-child(2){background:#ffd400;transform:rotate(3deg)}.dependency-art>div span:nth-child(3){background:#ffd400;transform:rotate(-2deg)}.dependency-art>p{font-size:11px;font-family:var(--body);letter-spacing:1px}
.editorial-note h2{font-size:40px;font-weight:700;letter-spacing:-1.4px}.editorial-note p{font-size:16px}.footer{background:#000000;color:#ffffff;border:0}.footer-brand{font-family:var(--display);font-weight:400;font-size:34px;letter-spacing:0;text-transform:uppercase}.footer p{color:#cccccc;font-size:14px}.footer .tiny{color:#999999}.footer nav{font-size:13px}.footer nav a:hover{color:#ffd400}.footer-bottom{border-color:#333333;color:#999999;font-family:var(--body);font-size:11px}
.page-heading h1{font-size:clamp(60px,7.5vw,100px);line-height:1.03;letter-spacing:0}.page-heading>p{font-size:20px;line-height:1.6}.breadcrumbs{font-family:var(--body);font-size:12px}.page-heading{padding-top:45px;padding-bottom:55px}.system-heading h1{font-size:clamp(64px,8vw,108px);letter-spacing:0}.system-heading p{font-size:21px}.heading-icon{border-radius:0;transform:rotate(4deg);padding:26px}.heading-icon .icon{width:84px;height:84px;stroke-width:2.2}.in-page{font-size:14px;border-top:2px solid #000000;border-bottom:1px solid #999999;font-weight:500;gap:27px}.section.compact .section-heading h2{font-size:36px}
.system-directory-row{border-bottom:1px solid #999999}.system-directory-row h2{font-family:var(--display);font-weight:400;text-transform:uppercase;font-size:38px;letter-spacing:0}.system-directory-row>.icon{border-radius:0;box-shadow:none;width:60px;height:60px;padding:10px}.system-directory-row p{font-size:15px}.directory-index{font-family:var(--display);font-size:24px;color:#000000}.system-directory-row>span:nth-last-child(2){font-family:var(--body);font-size:13px}.reading-note{background:#ffffff;border-color:#000000}.reading-note h2{font-size:29px}.reading-note p{font-size:16px}
.flow-shell{border:1px solid #999999;background:#ffffff}.diagram-top{border-bottom:1px solid #cccccc}.diagram-top .tiny{font-family:var(--body);font-size:12px;font-weight:550;letter-spacing:1px}.motion-toggle{border-radius:0;font-family:var(--body);font-size:11px;font-weight:500;border-color:#666666}.node-number{font-family:var(--display);font-size:17px;color:#333333}.node-icon{border:1.5px solid #666666}.flow-node.selected .node-icon{box-shadow:0 0 0 5px #0000000b;border:2px solid #000000}.flow-node{font-family:var(--body);font-size:13px;font-weight:500}.diagram-caption{font-family:var(--body);font-size:12px;line-height:1.65}.component-inspector h3{font-size:29px;font-weight:650}.component-inspector p{font-size:15px}.component-inspector .tiny{font-family:var(--body);font-weight:600}.text-alternative{font-size:13px}.overview-copy{font-size:16px;line-height:1.8}.branch-node>span:last-child{font-size:13px}.diagram-branch>.tiny{font-family:var(--body);font-weight:550;font-size:10px;letter-spacing:.6px}
.component-card h3{font-size:24px;font-weight:650}.component-card p{font-size:14px}.card-icon{border-radius:0}.component-heading h1{font-size:clamp(60px,7vw,94px);letter-spacing:0}.component-heading p{font-size:20px}.component-emblem{border-radius:0;transform:rotate(3deg);width:170px;height:170px}.component-emblem>span{font-family:var(--body);font-size:10px;font-weight:600;letter-spacing:.6px}.article-layout article h2{font-size:32px;font-weight:700}.article-layout article p{font-size:17px;line-height:1.8}.sidebar-map h2{font-size:28px}.sidebar-map ol{font-size:13px}.sidebar-map>.icon{border-radius:0}.sidebar-map .text-link{font-size:13px}.misconception{border-left:5px solid var(--accent);background:#ffffff}.misconception h3{font-size:26px}.article-layout article .misconception p{font-size:16px}.source-notes h2{font-size:28px}.source-notes li{font-size:14px}.source-notes li>span{font-size:11px}
.journey-heading h1{font-size:clamp(62px,7.5vw,100px);letter-spacing:0}.journey-heading>p{font-size:20px}.journey-progress button{font-family:var(--body);font-size:11px;font-weight:500}.journey-progress button>span:first-child{font-family:var(--display);font-size:18px;width:36px;height:36px}.journey-stage-art{border-radius:0;transform:rotate(-3deg);width:220px;height:220px}.journey-stage-art>span{font-family:var(--body);font-size:13px;font-weight:550}.journey-stage-content h2{font-size:34px;font-weight:700}.journey-stage-content p{font-size:17px}.journey-transcript h2{font-size:29px}.journey-transcript p{font-size:16px}.stop-badge{border-radius:0;font-family:var(--display);font-size:19px;width:36px;height:36px}.takeaway{background:#000000;border-left:10px solid var(--accent)}.takeaway p{font-size:25px;font-weight:500;line-height:1.4}.takeaway .eyebrow{color:var(--accent)}
.scenario{background:#ffffff;border:1px solid #999999}.scenario-heading h2{font-family:var(--display);font-weight:400;text-transform:uppercase;font-size:48px;line-height:1.07;letter-spacing:.1px}.scenario-heading p{font-size:16px}.scenario-control label{font-size:15px;font-weight:600}.range-value{font-family:var(--display);font-size:60px;letter-spacing:0}.scenario-result strong{font-family:var(--body);font-size:27px;font-weight:650}.scenario-result p{font-size:15px}.scenario-limits h3{font-size:24px}.scenario-limits p,.scenario-limits li{font-size:14px;line-height:1.7}.range-ends{font-family:var(--body);font-size:12px}.text-button{font-family:var(--body);font-size:12px}.crosslinks a{font-weight:600}.crosslinks small{font-size:13px;font-weight:400}.search-form label{font-size:14px}.search-form input{font-family:var(--body);font-size:22px}.filter-bar input[type=radio]+span{border-radius:0;font-family:var(--body);font-size:13px;font-weight:500}.filter-bar legend{font-size:12px}.search-status{font-family:var(--body);font-size:13px}.prose h2{font-size:32px}.prose p,.prose li{font-size:17px}.source-register h3{font-size:26px}.source-register dl{font-size:14px}.share-bar{font-size:14px}.share-button{border-radius:0;font-family:var(--body);font-size:13px}
@media(min-width:1600px){.home-hero{padding-inline:max(6%,calc((100% - 1408px)/2));gap:70px}.hero-copy h1{font-size:112px}}
@media(max-width:1100px){.hero-copy h1{font-size:77px}.home-hero{gap:28px;min-height:600px;padding:45px 4% 45px 5%}.hero-art{margin:0;padding:12px 5px 15px}.hero-copy>p{font-size:16px;max-width:350px}.hero-foot{font-size:10px}.system-card{padding:23px 18px}.system-card h3{font-size:33px}.system-card .card-end{font-size:10px}.map-legend{gap:6px}.map-legend button{font-size:10px}.art-caption{font-size:9px}.lab-promo h2{font-size:57px}.header nav{font-size:14px;gap:20px}.journey-stage-art{width:185px;height:185px}.stage-path{width:70px}.component-inspector .text-link{max-width:190px;font-size:13px}}
@media(max-width:800px){.header{height:91px}.brand{font-size:15px}.brand-mark{width:40px;height:40px}.brand-mark .icon{width:28px;height:28px}.header nav{font-size:12px;gap:18px}.search-link{padding:10px}.home-hero{grid-template-columns:1fr;max-width:none;padding:45px 7% 55px;gap:38px}.hero-copy h1{font-size:97px;line-height:1.05;max-width:650px}.hero-copy>p{font-size:18px;max-width:530px}.hero-art{max-width:610px;width:95%;justify-self:center;margin:0;transform:rotate(1deg)}.map-legend{gap:12px}.map-legend button{font-size:11px}.art-caption{font-size:10px}.hero-foot{font-size:11px;margin-top:25px}.intro-strip>p{font-size:25px}.section-heading h2{font-size:34px}.system-grid{gap:15px}.system-card{padding:25px;border:0}.system-card h3{font-size:38px}.system-card-icon{height:130px}.system-card .card-end{font-size:12px}.section.compact .section-heading h2{font-size:32px}.page-heading h1{font-size:75px}.system-heading h1{font-size:80px}.heading-icon .icon{width:55px;height:55px}.heading-icon{padding:20px}.flow-node{font-size:12px}.flow-node .node-number{font-size:16px}.component-heading h1{font-size:66px}.component-emblem{width:130px;height:130px}.component-heading p{font-size:18px}.journey-heading h1{font-size:75px}.journey-stage-art{width:160px;height:160px}.journey-stage-content h2{font-size:31px}.journey-stage-content p{font-size:15px}.journey-progress button{font-size:10px}.scenario-heading h2{font-size:43px}.range-value{font-size:53px}.scenario-result strong{font-size:25px}.lab-promo h2{font-size:60px}.editorial-note h2{font-size:36px}.footer{font-size:13px}}
@media(max-width:540px){.header{height:auto;min-height:110px;padding:18px 5% 15px;row-gap:19px}.brand{font-size:17px}.brand-mark{width:39px;height:39px}.header nav{font-size:13px;gap:12px;justify-content:space-between}.search-link{padding:9px;border:1px solid #000000}.hero-copy .edition{font-size:9px;letter-spacing:1px;margin-bottom:24px}.home-hero{padding:36px 6% 45px;gap:35px}.hero-copy h1{font-size:clamp(53px,14vw,72px);letter-spacing:-.01em;line-height:1.1}.hero-copy>p{font-size:16px;max-width:350px;margin-bottom:23px}.hero-copy .button{font-size:13px;min-height:48px}.hero-foot{font-size:10px;gap:10px}.hero-foot span+span{padding-left:10px}.hero-art{width:98%;box-shadow:6px 6px 0 #ffd400;padding:18px 3px 12px}.hero-art::before{font-size:7px;top:13px;left:15px}.city-map{margin-top:3px}.map-legend{margin-top:-12px;gap:5px 9px}.map-legend button{font-size:9px;min-height:32px}.map-legend .motion-toggle{font-size:8px;padding:5px 8px}.art-caption{font-size:8px;gap:8px}.art-caption span{font-size:7px}.intro-strip{padding:24px 6%;gap:12px}.intro-strip>.eyebrow{font-size:10px;letter-spacing:1px}.intro-strip>p{font-size:26px;max-width:290px}.intro-arrow{font-size:40px}.section{padding-block:45px}.section-heading h2{font-size:32px;line-height:1.12;letter-spacing:-1px}.section.compact .section-heading h2{font-size:30px}.eyebrow{font-size:10px;letter-spacing:1.3px}.system-grid{gap:12px}.system-card{padding:19px 14px}.system-card>.tiny{font-size:9px;letter-spacing:.6px}.system-card-icon{height:109px}.system-card-icon .icon{width:52px;height:52px;box-shadow:none;padding:0}.system-card h3{font-size:31px;line-height:1.05}.system-card p{font-size:13px}.system-card .card-end{font-size:9px;line-height:1.45;gap:5px;padding-top:12px;margin-top:18px}.system-card .card-end>span:first-child{max-width:100px}.journey-card{padding:25px}.journey-card h3{font-size:28px;letter-spacing:-.8px}.journey-card p{font-size:15px}.journey-top{font-size:11px}.journey-number{font-size:65px}.lab-promo{padding:35px 25px}.lab-promo h2{font-size:49px}.lab-promo p{font-size:15px}.dependency-art>div span{font-size:25px;min-width:72px;padding:17px 10px}.editorial-note h2{font-size:34px}.editorial-note p{font-size:16px}.footer-brand{font-size:29px}.footer nav{font-size:12px}.footer-bottom{font-size:10px}.page-heading{padding:26px 0 35px}.page-heading h1{font-size:clamp(50px,13vw,65px);line-height:1.06}.page-heading>p{font-size:18px}.breadcrumbs{font-size:11px}.system-heading{padding-top:25px;gap:15px}.system-heading h1{font-size:60px;line-height:1.05}.system-heading p{font-size:17px}.heading-icon{padding:9px;margin-top:27px;transform:rotate(5deg)}.heading-icon .icon{width:30px;height:30px}.in-page{font-size:12px;gap:17px 20px;padding:18px 0}.diagram-top{gap:15px;padding:16px}.diagram-top .tiny{font-size:10px;max-width:170px;line-height:1.5}.motion-toggle{font-size:10px;min-height:34px}.flow-track{padding:16px 7px 10px;row-gap:26px}.flow-node{font-size:11px;line-height:1.4;gap:12px;min-height:140px}.node-number{font-size:15px}.node-icon{width:55px;height:55px}.flow-line{top:66px}.flow-stop:nth-child(4)::before{font-size:8px;top:-15px}.diagram-caption{font-size:12px;padding:10px 17px 17px;line-height:1.55}.component-inspector{padding:22px}.component-inspector h3{font-size:27px}.component-inspector p{font-size:14px}.component-inspector .text-link{font-size:13px;max-width:none}.text-alternative{font-size:12px}.overview-copy{font-size:16px}.diagram-branch>.tiny{font-size:9px;line-height:1.5}.branch-node>span:last-child{font-size:13px}.component-card{gap:16px}.component-card h3{font-size:25px}.component-card p{font-size:14px}.component-heading{gap:14px;position:relative;padding-top:25px}.component-heading h1{font-size:clamp(47px,12vw,61px);line-height:1.07;overflow-wrap:break-word}.component-heading .eyebrow{font-size:9px}.component-emblem{width:54px;height:54px;margin-top:35px}.component-heading p{font-size:17px}.article-layout article h2{font-size:29px}.article-layout article p{font-size:16px;line-height:1.75}.article-layout article .misconception p{font-size:16px}.source-notes h2{font-size:27px}.source-notes li{font-size:13px}.journey-heading h1{font-size:clamp(51px,13vw,67px);line-height:1.07}.journey-heading>p{font-size:18px}.journey-progress{padding:12px 8px}.journey-progress button{font-size:0;min-height:44px}.journey-progress button>span:first-child{font-family:var(--display);font-size:18px;width:31px;height:33px}.journey-stage{gap:30px;padding:30px 24px}.journey-stage-art{width:150px;height:150px}.journey-stage-art>span{font-size:12px;line-height:1.4}.journey-stage-content h2{font-size:30px;line-height:1.15}.journey-stage-content p{font-size:16px}.journey-controls .button{font-size:12px;padding:11px 13px}.journey-transcript h2{font-size:27px}.journey-transcript p{font-size:16px}.stop-badge{font-size:16px;width:28px;height:31px}.takeaway{padding:25px;border-left-width:6px}.takeaway p{font-size:22px}.scenario-heading h2{font-size:40px}.scenario-heading p{font-size:16px}.scenario-control label{font-size:14px}.range-value{font-size:54px}.scenario-result strong{font-size:25px}.scenario-result p{font-size:15px}.scenario-limits h3{font-size:23px}.scenario-limits p,.scenario-limits li{font-size:14px}.search-form input{font-size:18px}.search-form label{font-size:13px}.filter-bar input[type=radio]+span{font-size:12px;min-height:38px;padding:10px 12px}.search-status{font-size:13px}.prose h2{font-size:29px}.prose p,.prose li{font-size:16px}.source-register h3{font-size:24px}.source-register dl{font-size:13px}.reading-note{padding:24px}.reading-note h2{font-size:27px}.reading-note p{font-size:15px}.system-directory-row h2{font-size:34px}.system-directory-row p{font-size:14px}.system-directory-row>.icon{width:40px;height:40px;padding:6px}.error-page h1{font-size:65px}}
@media(prefers-reduced-motion:reduce){.hero-art,.hero-copy h1 em,.heading-icon,.component-emblem,.journey-stage-art{transform:none}}
.asset-record{padding:18px 0;border-top:1px solid var(--line);font-size:15px}.asset-record summary{cursor:pointer;font-weight:550}.asset-record dl{font-size:13px}.asset-record[open] summary{margin-bottom:18px}

body{font-weight:400}
@media(min-width:801px) and (max-width:1100px){.hero-copy h1{font-size:clamp(55px,6.7vw,77px)}}
@media(min-width:541px) and (max-width:800px){.hero-copy h1{font-size:clamp(68px,12vw,97px)}}
@media(max-width:540px){.hero-copy h1{font-size:clamp(45px,14vw,72px)}}

/* Keep long article titles inside narrow reading layouts. */
.component-heading>div:first-child{min-width:0}
@media(max-width:540px){.component-heading{display:block}.component-heading .family-label,.component-heading .eyebrow{padding-right:70px}.component-heading .eyebrow{min-height:24px}.component-emblem{position:absolute;right:3px;top:27px;margin:0}.component-heading h1{font-size:clamp(43px,12vw,61px)}}

.system-heading>div:first-child{min-width:0}
@media(max-width:540px){.system-heading{display:block;position:relative}.system-heading .eyebrow{display:block;max-width:calc(100% - 65px);min-height:48px;line-height:1.6}.heading-icon{position:absolute;right:3px;top:23px;margin:0}.system-heading h1{font-size:clamp(53px,14vw,70px)}}

/* Phone controls and keyboard navigation retain the exhibition layout. */
:root{color-scheme:light;-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-block:16px}
html:has(.diagram-dialog[open]){overflow:hidden}
/* Motion starts only after its own shell has a working pause control. */
.hero-art:not(.motion-ready) .city-dash,
.flow-shell:not(.motion-ready) .flow-line i,
.journey-viewer:not(.motion-ready) .stage-path i,
.scenario:not(.motion-ready) .model-network .active-path{animation-play-state:paused}
.header nav a,.search-link,.footer nav a,.in-page a,.text-link{min-height:44px;display:inline-flex;align-items:center}
.search-link{min-width:44px;justify-content:center}
.header nav{flex-wrap:wrap;align-items:center}
.header nav a[aria-current]{padding-bottom:0}
.footer nav{gap:3px}
.footer nav a{align-self:flex-start}
.map-legend button,.map-legend .motion-toggle,.motion-toggle,.share-button,.text-button,.journey-progress button{min-height:44px;min-width:44px}
.filter-bar input[type=radio]+span{min-height:44px;display:flex;align-items:center}
.type-filter{min-width:0;flex-wrap:wrap}
.type-filter select{min-height:44px;font-size:16px;max-width:100%}
.search-form .button{min-height:44px}
.text-alternative summary,.journey-understanding summary{min-height:44px;align-content:center}
.component-card>div,.crosslinks a>div,.crosslinks a>span,.system-directory-row>div,.journey-transcript li>div,.source-register dd,.lab-promo>div,.footer>div,.article-sidebar{min-width:0}
.component-card h3,.crosslinks a,.system-directory-row h2,.journey-transcript h2,.source-register dd,.source-notes li,.share-status{overflow-wrap:anywhere}
.component-card>span:last-child,.crosslinks a>.icon,.stop-badge{flex-shrink:0}
.hero-foot,.art-caption{flex-wrap:wrap}
.journey-progress{scroll-padding-inline:10px}
.journey-progress button:focus-visible{outline-offset:-3px}
.hero-copy :is(a,button):focus-visible,.lab-promo :is(a,button):focus-visible,.footer :is(a,button):focus-visible{outline-color:#ffd400}
.filter-bar input:focus-visible+span{outline-offset:3px}
@media(max-width:800px){
 .header{height:auto;min-height:91px;padding-block:14px}
 .header nav{row-gap:4px}
 .filter-bar fieldset{min-width:0;max-width:100%}
 .journey-progress button{flex-shrink:0}
 .journey-stage{grid-template-columns:minmax(0,.7fr) minmax(0,1.3fr)}
}
@media(max-width:540px){
 .header{row-gap:8px}
 .header nav{column-gap:12px}
 .in-page{gap:4px 20px;padding-block:12px}
 .map-legend{gap:4px 8px}
 .journey-progress{justify-content:flex-start;gap:5px}
 .journey-stage{grid-template-columns:minmax(0,1fr)}
 .journey-controls .button{min-height:44px;max-width:100%;white-space:normal}
 .search-form input{font-size:18px}
 .system-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .system-card h3{overflow-wrap:anywhere}
 .footer{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(forced-colors:active){
 :is(button,a,input,select,summary,[tabindex]):focus-visible{outline:3px solid Highlight;outline-offset:3px}
 .filter-bar input:focus-visible+span{outline-color:Highlight}
 .map-legend button[aria-pressed=true],.filter-bar input:checked+span,.journey-progress button[aria-current]>span:first-child{forced-color-adjust:none;background:Highlight;color:HighlightText;border-color:Highlight}
 .flow-node.selected .node-icon{border:3px solid Highlight}
 .button,.search-link,.share-button,.motion-toggle{border:1px solid ButtonText}
 button:disabled{opacity:1;color:GrayText}
 .hero-copy h1 em{color:CanvasText;background:Canvas}
}

/* Invisible Infrastructure / 1.3
   A public-works atlas: black ink, white space, signal yellow. */
:root{--paper:#fff;--ink:#000;--dark:#000;--muted:#444;--line:#000;--accent:#ffd400;--signal:#ffd400;color:#000;background:#fff}
body{background:#fff;color:#000}
::selection{background:#ffd400;color:#000}
.header{max-width:none;background:#fff;border-bottom:3px solid #000;padding-inline:6%;height:104px}
.brand{font-size:19px;letter-spacing:-.8px;gap:13px}
.brand-mark{transform:none;background:#000;color:#ffd400;width:48px;height:48px;border:2px solid #000}
.brand-dot{color:#000}.header nav{gap:28px;font-weight:650}.header nav a{position:relative}
.header nav a:hover,.header nav a[aria-current]{text-decoration:underline;text-decoration-color:#ffd400;text-decoration-thickness:5px;text-underline-offset:8px}
.search-link{border:2px solid #000;background:#ffd400;font-weight:650;padding:11px 15px}
.search-link:hover{background:#000;color:#ffd400}
.button,.text-button,.share-button,.search-form input,.type-filter select{border-radius:0;box-shadow:none}
.button.dark{background:#000;color:#fff;border-color:#000}.button.dark:hover{background:#ffd400;color:#000;border-color:#000}
.button.light{background:#ffd400;color:#000;border-color:#ffd400}.button.light:hover{background:#fff;color:#000}
.button.outline{background:#fff;border:2px solid #000;color:#000}.button.outline:hover{background:#ffd400}
.text-link{font-weight:650}.text-link:hover{background:#ffd400;color:#000}
.eyebrow,.tiny{color:#444}.family-label{color:inherit;font-weight:650}.family-label i{background:#000!important;border:0;border-radius:0;width:7px;height:7px}
.home-hero{background:#fff;color:#000;grid-template-columns:1.08fr 1fr;gap:42px;align-items:center;min-height:670px;padding:52px 6% 58px;border-bottom:4px solid #000}
.home-hero::after{display:none}
.hero-copy .edition{color:#000;font-family:var(--mono);font-size:10px;letter-spacing:1.5px;margin-bottom:34px;font-weight:600}
.live-dot{background:#000;border-radius:0;width:9px;height:9px}
.hero-copy h1{font-size:clamp(62px,6.25vw,112px);line-height:1.05;letter-spacing:-.012em;margin:0 0 27px}
.hero-copy h1 em{background:#ffd400;color:#000;transform:none;padding:0 .04em .03em;margin:0 -.04em;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.hero-copy>p{font-size:18px;line-height:1.6;color:#333;max-width:440px}
.hero-copy .button.dark{background:#000;border:2px solid #000;color:#fff;margin-top:10px}.hero-copy .button.dark:hover{background:#ffd400;color:#000}
.hero-foot{font-family:var(--mono);font-size:10px;color:#000;gap:17px;margin-top:32px}.hero-foot span+span{border-color:#000}
.hero-art{width:100%;max-width:none;min-width:0;margin:0;transform:none;background:#fff;color:#000;box-shadow:none;border:3px solid #000;border-top:15px solid #000;padding:33px 16px 15px;align-self:center}
.hero-art::before{content:'FIELD DRAWING 001 / FOUR NETWORKS';position:absolute;top:15px;left:16px;font:9px var(--mono);font-weight:650;letter-spacing:.7px}
.city-map{margin-top:13px}.art-caption{font-size:10px;color:#333;margin-top:16px;padding-top:12px;border-top:1px solid #000}
.art-caption span{font-family:var(--mono);font-size:9px;color:#000}
.map-legend{gap:0;margin:0;display:flex;flex-wrap:wrap;justify-content:flex-start;border-top:2px solid #000;padding-top:10px}
.map-legend button{padding:6px 10px;font-size:11px;border:1px solid transparent;min-height:44px;color:#000;flex-grow:1}
.map-legend i{border-radius:0;border:1px solid #000;background:#ffd400!important}
.map-legend button[aria-pressed=true]{background:#ffd400;border:1px solid #000}
.map-legend .motion-toggle{border:1px solid #000;margin:6px 0 0;flex-grow:0;padding-inline:12px;background:#fff}
.intro-strip{background:#ffd400;border-bottom:3px solid #000;padding:32px 6%;gap:35px}
.intro-strip .eyebrow{font:600 10px/1.5 var(--mono);color:#000}
.intro-strip>p{font:400 clamp(28px,3.2vw,47px)/1.13 var(--display);text-transform:uppercase;color:#000;letter-spacing:0}
.section{padding-top:76px;padding-bottom:76px}.section-heading{align-items:flex-end;margin-bottom:32px;gap:24px}
.section-heading h2,.section.compact .section-heading h2{font:400 clamp(34px,4vw,57px)/1.08 var(--display);text-transform:uppercase;letter-spacing:0;max-width:870px}
.section-heading .eyebrow{font:600 10px var(--mono);letter-spacing:1.1px;color:#444;margin-bottom:15px}
.system-grid{gap:0;border:2px solid #000}
.system-card{background:#fff;border:0;border-right:2px solid #000;color:#000;padding:26px;transition:background .15s}
.system-card:last-child{border-right:0}.system-card:hover{background:#ffd400;color:#000;transform:none}
.system-card>.tiny{display:inline-block;font:600 10px var(--mono);letter-spacing:1px;color:#000;background:#ffd400;padding:6px 9px;border:1px solid #000}
.system-card-icon{height:133px;padding:0}.system-card-icon .icon{width:66px;height:66px;stroke-width:2.2;background:none;color:#000}
.system-card h3{font:400 clamp(30px,3vw,43px)/1.1 var(--display);text-transform:uppercase;letter-spacing:0}
.system-card p{color:#333;font-size:14px}.system-card .card-end{border-top:2px solid #000;padding-top:17px;color:#000;line-height:1.6}
.journeys-section{background:#000;color:#fff;border:0}
.journeys-section .eyebrow{color:#ffd400}.journeys-section .text-link{color:#fff}.journeys-section .text-link:hover{color:#000}
.journey-grid,.journey-grid.three{gap:0;border-top:2px solid #000;border-left:2px solid #000}
.journeys-section .journey-grid{border-color:#fff}
.journey-card{border:0;border-right:2px solid #000;border-bottom:2px solid #000;background:#fff;color:#000;padding:26px;box-shadow:none;border-radius:0;transition:background .15s}
.journey-card:hover{box-shadow:none;transform:none;background:#ffd400}
.journey-top{font-family:var(--mono);font-size:10px;color:#000}
.journey-number{font:400 76px/1 var(--display);margin:25px 0 22px;color:#000;min-width:0}
.journey-number::before{display:none}.journey-number span{color:#000;font:400 46px/1 var(--display)}
.journey-card h3{font-size:24px;line-height:1.15;letter-spacing:-.7px;font-weight:750}
.journey-card p{color:#444;line-height:1.65}.journey-card .card-end{color:#000;font-size:11px;border-top:1px solid #000;padding-top:15px}
.journeys-section .journey-card{background:#000;color:#fff;border-color:#fff}
.journeys-section .journey-card :is(.family-label,.journey-top,.card-end){color:#fff}
.journeys-section .journey-card .family-label i{background:#ffd400!important}
.journeys-section .journey-number,.journeys-section .journey-number span{color:#ffd400}
.journeys-section .journey-card p{color:#ccc}.journeys-section .journey-card .card-end{border-color:#fff}
.journeys-section .journey-card:hover{background:#181818}
.lab-promo{background:#ffd400;color:#000;border-top:3px solid #000;border-bottom:3px solid #000;margin:0;padding-block:68px}
.lab-promo .eyebrow,.lab-promo p{color:#000}.lab-promo h2{font-size:clamp(48px,5.6vw,80px);color:#000}
.lab-promo .button.light{background:#000;color:#fff;border-color:#000}.lab-promo .button.light:hover{background:#fff;color:#000}
.dependency-origin{border:2px solid #000;background:#fff;color:#000;transform:none;border-radius:0;font-family:var(--mono)}
.dependency-art svg path{stroke:#000}.dependency-art svg circle{fill:#000}
.dependency-art>div span:nth-child(n){background:#000;color:#ffd400;transform:none;border:2px solid #000;border-radius:0;font-size:28px}
.dependency-art>p{color:#000}.editorial-note{border:0}.editorial-note h2{font-size:clamp(34px,3.8vw,50px);line-height:1.12}.editorial-note p{color:#333}
.footer{background:#000;color:#fff;border-top:12px solid #ffd400}
.footer-brand{font-size:clamp(28px,3.3vw,45px);line-height:1.08;color:#fff}.footer :is(p,.tiny){color:#ccc}.footer nav a{color:#fff}
.footer nav a:hover{color:#ffd400}.footer-bottom{border-color:#777;color:#ccc}
.page-heading,.system-heading,.component-heading,.journey-heading{border-bottom:3px solid #000}
.breadcrumbs{font:11px/1.7 var(--mono);color:#444;gap:12px}.breadcrumbs a{color:#000}
.page-heading .eyebrow,.system-heading .eyebrow,.component-heading .eyebrow,.journey-heading .eyebrow{font-family:var(--mono);font-size:10px;color:#333}
.page-heading>p,.system-heading p,.component-heading p,.journey-heading>p{color:#333}
.heading-icon,.component-emblem{background:#ffd400;transform:none;border:2px solid #000;border-radius:0;box-shadow:none;color:#000}
.heading-icon{padding:24px}.component-emblem>span{color:#000;font-family:var(--mono);font-size:9px}
.in-page{border-top:0;border-bottom:2px solid #000;color:#000;font-weight:650}
.in-page a:hover{background:#ffd400}.system-directory-row{border-bottom:2px solid #000}
.system-directory-row>.icon{background:#ffd400!important;color:#000;border:1px solid #000}
.reading-note{background:#fff;border:2px solid #000;border-left:10px solid #ffd400;border-radius:0;color:#000}
.flow-shell{background:#fff;border:2px solid #000;border-radius:0}.diagram-top{border-bottom:2px solid #000;background:#ffd400;color:#000}
.diagram-top .tiny{color:#000;font-family:var(--mono);font-size:10px;font-weight:600}
.motion-toggle{border:1px solid #000;background:#fff;color:#000;border-radius:0;font-weight:600}
.motion-toggle:hover{background:#000;color:#fff}.node-number{color:#000}
.node-icon{background:#fff;border:2px solid #000;border-radius:0;box-shadow:none}
.flow-node.selected .node-icon{background:#ffd400;border:2px solid #000;box-shadow:4px 4px 0 #000}
.flow-node:hover .node-icon{background:#ffd400;transform:none}.flow-line{color:#000}.flow-line i{background:#000}
.diagram-caption{color:#444}.diagram-branches{border-color:#000}.diagram-branch>.tiny{color:#333}
.component-inspector{background:#000;border-top:2px solid #000;color:#fff}.component-inspector :is(.tiny,p){color:#ccc}
.component-inspector h3{color:#fff}.component-inspector .text-link{color:#ffd400}.component-inspector .text-link:hover{color:#000}
.text-alternative{background:#fff;border-top:1px solid #000;color:#000}.text-alternative summary{font-weight:650}
.component-grid{column-gap:38px}.component-card{border-bottom:2px solid #000;padding-block:28px}
.component-card:hover{background:#fff}.component-card:hover h3{text-decoration:underline;text-decoration-color:#ffd400;text-decoration-thickness:5px;text-underline-offset:5px}
.card-icon{background:#ffd400!important;color:#000;border:1px solid #000;border-radius:0}
.component-card h3{font-size:23px;line-height:1.2;font-weight:750}.component-card p{color:#444;line-height:1.7}
.sidebar-map{background:#fff;border:2px solid #000;border-top:10px solid #ffd400;color:#000}
.sidebar-map>.icon{background:#ffd400!important;border:1px solid #000;color:#000;border-radius:0}
.sidebar-map ol,.sidebar-current{color:#333}.sidebar-map li[aria-current] a{background:#ffd400;color:#000}
.misconception{background:#fff;border:2px solid #000;border-left:10px solid #ffd400;border-radius:0}.misconception h3{color:#000}
.source-notes{border-color:#000}.source-notes li span{color:#444}.article-layout article p{color:#222}
.journey-viewer{background:#fff;border:2px solid #000;border-radius:0}
.journey-progress{background:#000;border-bottom:2px solid #000;padding:15px;gap:12px}
.journey-progress button{color:#fff}.journey-progress button>span:first-child{background:#000;border:1px solid #fff;color:#fff;border-radius:0}
.journey-progress button[aria-current]>span:first-child{background:#ffd400;color:#000;border-color:#ffd400}
.journey-stage{background:#fff}.journey-stage-art{background:#ffd400;transform:none;border:2px solid #000;border-radius:0!important;color:#000}
.journey-stage-content h2{color:#000;font-weight:750}.journey-stage-content>p{color:#222}.stage-path i{background:#000}
.journey-controls{background:#fff;border-top:2px solid #000}.journey-controls [data-step-counter]{font-family:var(--mono);font-weight:650;color:#000}
.journey-transcript{border-color:#000}.journey-transcript summary{font-weight:650}.journey-transcript li{border-color:#000}
.stop-badge{background:#ffd400;border:1px solid #000;color:#000;border-radius:0;font-family:var(--display)}
.takeaway{background:#000;color:#fff;border-left:10px solid #ffd400}.takeaway .eyebrow{color:#ffd400}.takeaway p{color:#fff}
.return-card{background:#ffd400;border:0;border-right:2px solid #000;border-bottom:2px solid #000;border-radius:0;color:#000}
.return-card:hover{background:#000;color:#ffd400}.crosslinks a{border:2px solid #000;background:#fff;border-radius:0}.crosslinks a:hover{background:#ffd400}
.share-bar{border-top:2px solid #000;border-bottom:2px solid #000;background:#fff}.share-bar>span:first-child{color:#333}.share-button{border:1px solid #000;color:#000;background:#ffd400;font-weight:650}
.search-form input{border:2px solid #000;background:#fff;color:#000}.search-form input:focus{outline:3px solid #ffd400;outline-offset:2px}
.filter-bar{border-bottom:2px solid #000}.filter-bar input[type=radio]+span{background:#fff;border:1px solid #000;color:#000;border-radius:0}
.filter-bar input[type=radio]:checked+span{background:#ffd400;color:#000;border-color:#000}.type-filter select{border:1px solid #000;background:#fff;color:#000}
.search-status{color:#333}.search-empty{background:#fff;border:2px solid #000;border-left:10px solid #ffd400}
.source-register article,.asset-record{border-color:#000;border-radius:0}.source-register dt{color:#000}.source-register dd{color:#333}.asset-record[open]{background:#fff}
:where(button,a,input,select,summary,[tabindex]):focus-visible{outline:3px solid #000;outline-offset:4px}
:where(.footer,.journeys-section,.component-inspector,.journey-progress) :is(a,button):focus-visible{outline-color:#ffd400}
@media(min-width:1600px){.home-hero{padding-inline:max(6%,calc((100% - 1408px)/2))}}
@media(max-width:1100px){.home-hero{gap:30px;padding:45px 5%;min-height:590px}.hero-copy h1{font-size:clamp(60px,6.4vw,78px)}.hero-art{padding-inline:10px}.hero-art::before{left:10px;font-size:8px}.system-card{padding:20px}.header nav{gap:18px}.system-card h3{font-size:33px}}
@media(max-width:800px){.header{height:auto;min-height:92px;padding-block:16px;padding-inline:5%}.home-hero{grid-template-columns:1fr;padding:45px 6%;gap:40px}.hero-copy h1{font-size:clamp(64px,11.5vw,91px)}.hero-art{width:100%;max-width:660px;justify-self:stretch}.hero-copy>p{max-width:570px}.system-card:nth-child(2){border-right:0}.system-card:nth-child(-n+2){border-bottom:2px solid #000}.intro-strip{padding:28px 6%}.system-card-icon{height:115px}.section{padding-block:54px}.section-heading h2{font-size:42px}.journey-card{padding:24px}.lab-promo{padding-block:45px}}
@media(max-width:540px){.header{row-gap:10px;column-gap:12px}.brand{font-size:16px}.brand-mark{width:43px;height:43px}.header nav{gap:6px 17px;font-size:12px}.header nav a{min-height:44px}.search-link{padding:9px;min-height:44px}.home-hero{padding:34px 6% 38px;gap:32px;min-height:0}.hero-copy .edition{font-size:8px;letter-spacing:.8px;line-height:1.7;margin-bottom:24px}.hero-copy h1{font-size:clamp(46px,11.8vw,65px);line-height:1.08;letter-spacing:-.008em;margin-bottom:22px}.hero-copy>p{font-size:16px;line-height:1.7}.hero-foot{font-size:9px;gap:12px;flex-wrap:wrap;margin-top:25px}.hero-art{border-width:2px;border-top-width:10px;padding:28px 8px 12px;width:100%;transform:none;box-shadow:none}.hero-art::before{top:11px;left:8px;font-size:7px;letter-spacing:.4px}.city-map{margin-top:10px}.map-legend button{font-size:10px;padding-inline:7px}.map-legend .motion-toggle{font-size:10px}.art-caption{font-size:9px;gap:8px}.art-caption span{font-size:8px}.intro-strip{gap:16px;padding:24px 6%;align-items:flex-start}.intro-strip .eyebrow{font-size:8px}.intro-strip>p{font-size:26px}.intro-arrow{font-size:34px}.section{padding-block:42px}.section-heading{gap:15px;align-items:flex-start}.section-heading h2,.section.compact .section-heading h2{font-size:34px;line-height:1.12}.section-heading .eyebrow{font-size:9px;margin-bottom:10px}.system-card{padding:17px 13px}.system-card>.tiny{font-size:8px;letter-spacing:.2px;padding:5px}.system-card-icon{height:100px}.system-card-icon .icon{width:51px;height:51px}.system-card h3{font-size:28px}.system-card p{font-size:12px;line-height:1.6}.system-card .card-end{font-size:9px;gap:7px}.journey-card{padding:23px}.journey-number{font-size:65px}.journey-card h3{font-size:25px}.lab-promo h2{font-size:48px}.dependency-art>div span:nth-child(n){font-size:22px}.page-heading,.system-heading,.component-heading,.journey-heading{padding-bottom:30px}.page-heading h1{font-size:clamp(44px,12vw,64px)}.component-heading h1{font-size:clamp(39px,11vw,58px)}.system-heading h1{font-size:clamp(43px,12vw,64px)}.journey-heading h1{font-size:clamp(40px,11vw,60px)}.component-heading p,.journey-heading>p,.system-heading p,.page-heading>p{font-size:17px}.breadcrumbs{font-size:10px;gap:8px;overflow-wrap:anywhere}.component-emblem,.heading-icon{border-width:2px}.component-card h3{font-size:23px}.component-card p{font-size:14px}.journey-progress{padding:12px;gap:8px}.journey-stage-art{width:150px;height:150px}.journey-stage{padding:27px 20px}.component-inspector h3{font-size:26px}.diagram-top .tiny{font-size:8px}.footer{padding-top:35px;gap:25px 20px}.footer-brand{font-size:30px}.footer nav{font-size:12px}.footer-bottom{font-size:10px}.share-bar{gap:14px}.share-status{font-size:12px}}
@media(forced-colors:active){.hero-copy h1 em{color:CanvasText;background:Canvas}.system-card>.tiny,.card-icon,.node-icon,.heading-icon,.component-emblem{border-color:CanvasText}.journey-progress button[aria-current]>span:first-child,.filter-bar input[type=radio]:checked+span{forced-color-adjust:none;color:HighlightText;background:Highlight;border-color:Highlight}:where(button,a,input,select,summary,[tabindex]):focus-visible{outline-color:Highlight}}
@media print{.journey-viewer{display:none}.home-hero,.lab-promo,.journeys-section{background:#fff;color:#000}.header,.footer{display:none}.page-wrap{padding:0;max-width:none}.article-layout{display:block}.share-bar,.in-page,.lab-controls,.lab-figure-tools{display:none}}
/* Keep yellow for fills and rules, never low-contrast reading text on white. */
a:hover{color:inherit}
.in-page a:hover,.crosslinks a:hover,.component-card:hover{color:#000}
.hero-copy :is(a,button):focus-visible,.lab-promo :is(a,button):focus-visible{outline-color:#000}
.search-form input:focus{outline-color:#000}
@media(forced-colors:active){.hero-copy :is(a,button):focus-visible,.lab-promo :is(a,button):focus-visible,.search-form input:focus{outline-color:Highlight}}
@media(max-width:540px){.heading-icon{padding:9px}}
@media(forced-colors:active){.map-legend button[aria-pressed=true]{forced-color-adjust:none;background:Highlight;color:HighlightText;border-color:Highlight}.flow-node[aria-pressed=true]{border-color:Highlight}}