:root{font-family:Arial,Helvetica,sans-serif;color:#20221d;background:#fcfcf9;font-synthesis:none;--line:#d9dcd2;--muted:#62675d;--accent:#586642;--paper:#f1f2eb}*{box-sizing:border-box}body{margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer;color:inherit;border:1px solid var(--line);background:transparent;transition:background .15s,color .15s}button:hover{background:#e4e7dc}button:disabled{cursor:default;color:#878b82;background:transparent}button:focus-visible,a:focus-visible,summary:focus-visible,canvas:focus-visible{outline:3px solid #687d3e;outline-offset:4px}a{color:inherit;text-underline-offset:4px}.masthead,main,footer{max-width:1680px;margin:auto}.masthead{min-height:91px;display:flex;align-items:center;gap:24px;padding:20px 40px;border-bottom:1px solid var(--line)}.wordmark{font-size:28px;font-weight:700;letter-spacing:-1.5px;text-decoration:none;white-space:nowrap}.wordmark span{font-size:10px;vertical-align:top;padding-left:3px;line-height:22px}.masthead-context{font-size:10px;letter-spacing:1.5px;margin-left:30px}.preview-label{font-size:10px;letter-spacing:1.2px;margin-left:auto;border:1px solid #c4c9b9;padding:7px 9px;color:#5b6352}main{padding:0 40px}.intro{display:flex;justify-content:space-between;gap:40px;align-items:flex-end;padding:38px 0 34px}.eyebrow{font-size:10px;letter-spacing:1.7px;font-weight:600;margin:0 0 13px;line-height:1.6}.intro h1{font-size:clamp(32px,3.75vw,58px);font-weight:500;letter-spacing:-2.6px;margin:0;line-height:1.05}.intro-copy{max-width:290px;font-size:14px;line-height:1.65;color:var(--muted);margin:0 0 1px}.journey{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.journey button{border:0;border-right:1px solid var(--line);text-align:left;padding:19px 22px;font-size:14px;min-height:60px;position:relative}.journey button:first-child{border-left:1px solid var(--line)}.journey button span{font-size:10px;letter-spacing:1px;color:#6c7364;margin-right:18px}.journey button[aria-current]{background:#e8ecdE}.journey button[aria-current]:after{content:"";position:absolute;height:3px;background:#586642;bottom:0;left:0;right:0}.workbench{display:grid;grid-template-columns:minmax(0,1fr) 330px;border-bottom:1px solid var(--line)}.visual-column{min-width:0;border-left:1px solid var(--line);border-right:1px solid var(--line)}.viewport{height:clamp(480px,49vw,680px);position:relative;background:#f1f2ed;overflow:hidden;isolation:isolate}.viewport canvas{display:block;width:100%;height:100%;touch-action:none;cursor:grab}.viewport canvas:active{cursor:grabbing}.view-meta{position:absolute;top:23px;left:24px;right:24px;display:flex;justify-content:space-between;gap:20px;pointer-events:none;z-index:2;font-size:9px;letter-spacing:1.35px;color:#72766b;line-height:1.5}.view-meta>span:first-child{font-weight:600;color:#3d4733}.view-meta>span:last-child{text-align:right}.view-bottom{position:absolute;bottom:20px;left:24px;right:24px;display:flex;gap:14px;justify-content:space-between;align-items:center;pointer-events:none;z-index:2}.view-bottom>span{font-size:10px;color:#646b5b;letter-spacing:.2px}.camera-tools{display:flex;pointer-events:auto;background:#f8f9f3e8}.camera-tools button{min-width:36px;height:36px;font-size:17px;border-right:0}.camera-tools button:last-child{border-right:1px solid var(--line);font-size:11px;padding:0 10px}.model-label{position:absolute;z-index:3;pointer-events:none;transform:translate(-50%,-100%);white-space:nowrap;background:#252c20;color:#fcfff5;padding:9px 13px;border-radius:2px;font-size:11px;box-shadow:0 4px 12px #1f2b1815}.model-label:after{position:absolute;content:"";height:16px;width:1px;background:#6b7b59;left:50%;top:100%}.model-tools{display:flex;align-items:stretch;flex-wrap:wrap;gap:0;border-top:1px solid var(--line);background:#fafbf7}.model-tools button{border:0;border-right:1px solid var(--line);font-size:11px;padding:0 16px;min-height:49px}.model-tools button span{margin-left:10px}.model-tools button[aria-pressed=true]{background:#e8ecdf}.model-tools #motion{margin-left:auto;border-right:0;border-left:1px solid var(--line);font-size:10px;color:var(--muted)}.model-status{font-size:11px;color:#646b5b;margin:0;min-height:43px;padding:13px 20px;border-top:1px solid var(--line);line-height:1.6}.inspector{padding:28px 26px 25px;border-right:1px solid var(--line);display:flex;flex-direction:column;min-width:0;background:#fcfcf9}.lesson-heading{display:flex;align-items:flex-start;gap:12px}.lesson-heading .eyebrow{font-size:9px;letter-spacing:1.2px;flex:1;min-height:16px}.lesson-number{font-size:9px;white-space:nowrap;line-height:1.6;color:var(--muted)}.inspector h2{font-size:29px;line-height:1.12;font-weight:500;letter-spacing:-1px;margin:8px 0 18px}.inspector>p{font-size:14px;line-height:1.7;margin:0 0 22px;min-height:95px}.why{border-left:2px solid #788661;padding:0 0 0 15px;margin-bottom:24px}.why h3,.components h3{font-size:10px;font-weight:600;letter-spacing:.75px;margin:0 0 9px}.why p{font-size:12px;line-height:1.65;color:#62675a;margin:0}details{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:24px}summary{padding:15px 0;list-style:none;display:flex;justify-content:space-between;cursor:pointer;font-size:11px}summary::-webkit-details-marker{display:none}summary span{font-size:15px}details[open] summary span{transform:rotate(45deg)}details p{font-size:12px;line-height:1.7;margin:0 0 14px;color:#61665b}details a{display:block;font-size:10px;line-height:1.6;margin-bottom:17px;color:#3c5737;overflow-wrap:anywhere}.components{margin:0 0 24px}.components h3{display:flex;justify-content:space-between;gap:5px}.components h3 span{font-size:8px;letter-spacing:1px;color:#7c8274;font-weight:400}.component-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px}.component-grid button{padding:11px 9px;min-height:42px;font-size:10px;text-align:left;display:flex;align-items:center;gap:7px}.component-grid button:before{content:"";width:5px;height:5px;border-radius:50%;background:#9aa68a;flex:0 0 5px}.component-grid button[aria-pressed=true]{color:#fff;background:#39452e;border-color:#39452e}.component-grid button[aria-pressed=true]:before{background:#dde8c7}.next{margin-top:auto;min-height:51px;padding:13px 15px;background:#23271e;color:white;border:1px solid #23271e;text-align:left;display:flex;align-items:center;justify-content:space-between;gap:14px;font-size:12px}.next:hover{background:#485239}.next>span:last-child{font-size:21px}.reading-note{display:flex;gap:30px;justify-content:space-between;align-items:flex-start;padding:22px 0 30px}.reading-note p{max-width:800px;font-size:11px;line-height:1.6;color:#767b6e;margin:0}.reading-note>a{font-size:11px;white-space:nowrap;margin-top:2px}.reading-note>a span{margin-left:10px}footer{display:flex;justify-content:space-between;gap:20px;padding:22px 40px;border-top:1px solid var(--line);font-size:9px;letter-spacing:1.1px;color:#828679}.skip{position:absolute;top:-60px;left:20px;background:#fff;padding:14px;z-index:99}.skip:focus{top:10px}.loading{position:absolute;top:47%;left:0;right:0;text-align:center;font-size:12px;letter-spacing:.5px;color:#737b69}.fallback{position:absolute;inset:55px 30px 70px;margin:0;overflow:auto}.fallback img{display:block;width:100%;height:calc(100% - 35px);object-fit:contain}.fallback figcaption{font-size:11px;line-height:1.5;color:#676f5e;padding:8px;text-align:center}.no-script{line-height:1.6}.no-script-figure{max-width:760px;width:100%}[hidden]{display:none!important}@media(min-width:1500px){.workbench{grid-template-columns:minmax(0,1fr) 365px}.inspector{padding:32px}.inspector>p{font-size:15px}}@media(max-width:1100px){.masthead,footer{padding-left:24px;padding-right:24px}main{padding:0 24px}.workbench{grid-template-columns:minmax(0,1fr) 300px}.inspector{padding:25px 21px}.model-tools button{padding:0 10px;font-size:10px}.view-bottom{left:16px;right:16px}.view-bottom>span{font-size:9px;max-width:120px;line-height:1.6}.intro h1{letter-spacing:-1.8px}.viewport{height:610px}.intro-copy{max-width:230px}}@media(max-width:800px){.masthead{min-height:75px;padding:18px 20px}.masthead-context{display:none}main{padding:0 20px}.intro{padding:30px 0 25px;display:block}.intro h1{font-size:clamp(30px,5.7vw,44px);letter-spacing:-1.5px}.intro-copy{max-width:440px;font-size:13px;line-height:1.6;margin-top:17px}.eyebrow{font-size:9px;margin-bottom:12px}.journey button{padding:13px 12px;font-size:11px;min-height:57px}.journey button span{display:block;font-size:8px;margin-bottom:5px}.workbench{display:block}.viewport{height:420px}.visual-column{border-bottom:1px solid var(--line)}.inspector{border-left:1px solid var(--line);padding:25px}.inspector h2{font-size:30px;margin-top:2px}.inspector>p{min-height:0;max-width:610px;font-size:15px}.why p{font-size:13px;max-width:600px}.components{margin-bottom:25px}.component-grid{grid-template-columns:repeat(4,1fr)}.component-grid button{font-size:11px;min-height:44px}.model-tools button{min-height:47px;font-size:10px}.view-meta{top:17px;left:16px;right:16px;font-size:8px}.view-bottom{bottom:15px}.camera-tools button{min-width:40px;height:40px}.reading-note{display:block;padding:20px 0}.reading-note>a{display:inline-block;margin:18px 0 0}.reading-note p{font-size:11px}footer{padding:20px;font-size:8px}.next{max-width:100%;min-height:52px}.lesson-number{font-size:10px}}@media(max-width:460px){main{padding:0 14px}.masthead{padding:17px 15px}.wordmark{font-size:25px}.preview-label{font-size:8px}.journey button{padding:12px 8px;font-size:10px}.viewport{height:370px}.view-meta>span:last-child{max-width:155px}.component-grid{grid-template-columns:repeat(2,1fr)}.model-tools{display:grid;grid-template-columns:1fr 1fr}.model-tools button{border-bottom:1px solid var(--line);text-align:left;padding:0 13px}.model-tools #motion{margin-left:0;border-left:0}.model-tools button:nth-last-child(-n+2){border-bottom:0}.model-status{padding:11px 13px;min-height:56px;font-size:10px}.view-bottom{align-items:flex-end;gap:7px}.view-bottom>span{max-width:82px;font-size:9px}.camera-tools button{min-width:35px;min-height:44px}.camera-tools button:last-child{padding:0 8px}.inspector{padding:24px 20px}.view-meta{font-size:7px}.reading-note p{font-size:10px}footer{font-size:7px;letter-spacing:.6px;line-height:1.5}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
/* Readable editorial type at every scale. */
.masthead-context,.preview-label,.eyebrow,.lesson-heading .eyebrow,.lesson-number,.view-meta,.model-status,.components h3 span,.reading-note p,footer{font-size:12px}.intro-copy{font-size:16px;max-width:330px}.journey button{font-size:15px}.journey button span{font-size:12px}.inspector>p{font-size:16px;line-height:1.6}.why p,details p{font-size:14px}.why h3,.components h3,summary,details a,.reading-note>a{font-size:14px}.component-grid button{font-size:14px;min-height:44px}.model-tools button{font-size:13px;padding:0 13px}.model-tools #motion{font-size:12px}.view-bottom>span{font-size:12px;max-width:200px;line-height:1.5}.camera-tools button{height:44px;min-width:40px}.camera-tools button:last-child{font-size:13px}.model-label{font-size:13px}.next{font-size:14px}.workbench{grid-template-columns:minmax(0,1fr) 360px}.components h3{gap:10px}.view-meta{font-size:11px}.masthead-context{letter-spacing:1px}.reading-note p{max-width:740px}.viewport{height:680px}
@media(min-width:1500px){.workbench{grid-template-columns:minmax(0,1fr) 380px}}
@media(max-width:1100px){.workbench{grid-template-columns:minmax(0,1fr) 330px}.model-tools{display:grid;grid-template-columns:1fr 1fr}.model-tools button{border-bottom:1px solid var(--line);text-align:left}.model-tools button:nth-last-child(-n+2){border-bottom:0}.model-tools #motion{margin-left:0;border-left:0}.view-bottom>span{font-size:11px;max-width:105px}.intro-copy{max-width:265px}.view-meta>span:last-child{max-width:140px}.view-meta{font-size:10px}}
@media(max-width:800px){.workbench{display:block}.viewport{height:440px}.intro-copy{max-width:500px}.journey button{font-size:14px}.journey button span{font-size:12px}.inspector>p{font-size:16px}.model-tools{display:flex}.model-tools button{font-size:13px;border-bottom:0;flex:1;padding:0 10px}.model-tools #motion{font-size:12px;flex:.75}.view-meta{font-size:11px}.view-meta>span:last-child{max-width:210px}.view-bottom>span{font-size:12px;max-width:200px}.component-grid{grid-template-columns:repeat(2,1fr)}.reading-note p{font-size:12px}footer{font-size:11px}}
@media(max-width:460px){.viewport{height:390px}.preview-label{font-size:10px}.journey button{font-size:12px;padding:12px 8px}.journey button span{font-size:11px}.view-meta{font-size:10px}.view-meta>span:last-child{max-width:145px}.model-tools{display:grid;grid-template-columns:1fr 1fr}.model-tools button{border-bottom:1px solid var(--line);padding:0 12px;font-size:13px}.model-tools button:nth-last-child(-n+2){border-bottom:0}.view-bottom>span{font-size:11px;max-width:95px}.camera-tools button{min-width:35px}.model-status{font-size:12px;min-height:63px}.reading-note p{font-size:12px}footer{font-size:10px}.components h3 span{font-size:11px}.lesson-heading .eyebrow{font-size:11px}.eyebrow{font-size:11px}.view-meta{left:12px;right:12px}}
.annotations{position:absolute;inset:0;z-index:3;pointer-events:none}.annotations svg{position:absolute;inset:0;width:100%;height:100%;overflow:hidden}.annotations line{stroke:#5f7050;stroke-width:1;opacity:.55}.annotations button{position:absolute;font-size:13px;padding:8px 10px;min-height:33px;white-space:nowrap;background:#fafcf3eF;box-shadow:0 2px 6px #25301c0a;border:1px solid #9ea98e;pointer-events:auto;border-radius:2px}.annotations button[aria-pressed=true]{background:#39452e;color:#fff;border-color:#39452e}
@media(min-width:801px) and (max-width:1000px){.workbench{display:block}.viewport{height:560px}.inspector{border-left:1px solid var(--line);padding:27px}.inspector>p{min-height:0}.component-grid{grid-template-columns:repeat(4,1fr)}.visual-column{border-bottom:1px solid var(--line)}.view-meta{font-size:11px}.view-meta>span:last-child{max-width:none}.view-bottom>span{max-width:220px;font-size:12px}.model-tools{display:flex}.model-tools button{border-bottom:0;flex:1}.model-tools #motion{margin-left:auto;flex:.5}}
@media(max-width:460px){.annotations button{font-size:12px;min-height:36px;padding:8px}.viewport[data-exploded=true]{height:480px}}
@media(max-width:800px){.annotations button{min-height:44px;transform:translateY(-5px)}}
.fallback{display:flex;flex-direction:column;justify-content:center;inset:65px 25px 80px}.fallback-map{display:grid;grid-template-columns:1fr 1fr;gap:0 12px;max-width:580px;width:100%;margin:0 auto}.fallback-map>div{border:1px solid #b9c2ae;background:#fcfdf8;padding:15px 10px;text-align:center}.fallback-map strong{display:block;font-size:16px;font-weight:500}.fallback-map span:not(.map-link){display:block;font-size:13px;color:#646e58;margin-top:7px}.fallback-map .map-link{text-align:center;font-size:22px;color:#5b694b;padding:4px}.fallback-map p{grid-column:1/-1;font-size:14px;line-height:1.6;color:#56604c;margin:22px 0 8px;border-top:1px solid var(--line);padding-top:18px}.fallback figcaption{font-size:13px;max-width:580px;margin:10px auto 0;text-align:left;padding:0;line-height:1.55}.viewport:has(.fallback:not([hidden])){min-height:480px}@media(max-width:460px){.fallback{inset:65px 16px 84px}.fallback-map>div{padding:13px 6px}.fallback-map strong{font-size:14px}.fallback-map span:not(.map-link){font-size:12px}.fallback-map p{font-size:13px;margin-top:17px;padding-top:13px}.fallback figcaption{font-size:12px}}
/* QC: preserve the site's wordmark and readable contrast for secondary text. */
h1,h2,.wordmark{font-family:'Helvetica Neue',Arial,Helvetica,sans-serif}.journey button span,.view-meta,.components h3 span,.reading-note p,footer{color:#606657}

/* Campus extension: one visual language across scales. */
.journey{grid-template-columns:repeat(5,1fr)}.systems,.power-steps{display:flex;gap:8px;align-items:center;flex-wrap:wrap;padding:14px 0;border-top:1px solid var(--line)}.systems>span,.power-steps>span{font-size:12px;margin-right:12px;color:var(--muted)}.systems button,.power-steps button{padding:10px 13px;min-height:44px;font-size:13px}.systems button[aria-pressed=true],.power-steps button[aria-pressed=true]{background:#39452e;color:white}.campus-labels{position:absolute;inset:0;pointer-events:none;z-index:3}.campus-labels button{position:absolute;transform:translate(-50%,-100%);white-space:nowrap;pointer-events:auto;min-height:36px;font-size:12px;padding:8px 10px;background:#fcfcf3ee;box-shadow:0 3px 12px #23331415;border-color:#9fa88f}.campus-labels .hall-link,.campus-labels button[aria-pressed=true]{background:#39452e;color:white}.asset-links{max-width:1440px;margin:0 auto;padding:20px 40px 30px;display:flex;gap:20px;flex-wrap:wrap;font-size:13px}.asset-links>span{color:var(--muted)}
@media(max-width:800px){.campus-labels button:not(.hall-link){display:none}.campus-labels .hall-link{min-height:44px}.systems{gap:6px}.systems>span,.power-steps>span{width:100%}.systems button{flex:1 1 auto}.power-steps button{font-size:12px;padding:9px 10px}.journey button{padding:11px 6px;font-size:12px}.asset-links{padding:20px}.viewport[data-stage=campus]{height:440px}}

.energy-lab{display:grid;grid-template-columns:1fr 1fr;gap:30px;padding:40px 0;border-bottom:1px solid var(--line)}.energy-lab>div:first-child{grid-column:1/-1;max-width:670px}.energy-lab h2{font-size:31px;font-weight:500;letter-spacing:-1px;margin:6px 0 14px}.energy-lab p{font-size:15px;line-height:1.6;color:var(--muted)}.energy-controls{padding-right:35px}.energy-controls label{display:flex;justify-content:space-between;font-size:15px}.energy-controls output{font-weight:600}.energy-controls input{width:100%;margin:20px 0 27px;accent-color:#62774d;min-height:26px}.energy-total{display:flex;align-items:baseline;gap:18px;margin-bottom:22px}.energy-total strong{font-size:34px;font-weight:500;letter-spacing:-1px}.energy-total span,.energy-legend{font-size:13px}.energy-bar{height:38px;display:flex;background:#c28361}.energy-bar span:first-child{background:#62774d}.energy-bar span:last-child{background:#c28361}.energy-legend{display:flex;justify-content:space-between;gap:20px;margin-top:13px}.energy-legend b{font-weight:500;display:block;margin-top:5px}.energy-legend>span:first-child{color:#465c34}.energy-legend>span:last-child{color:#925536}.energy-note{grid-column:1/-1;max-width:860px;font-size:13px!important;margin:0}.energy-result #annual-energy{font-size:13px}.energy-controls input:focus-visible{outline:2px solid #62774d;outline-offset:4px}@media(max-width:700px){.energy-lab{grid-template-columns:1fr;gap:18px}.energy-controls{padding:0}.energy-lab h2{font-size:27px}.energy-total{flex-wrap:wrap;gap:4px 16px}}