/* The engine retains the deck's component colours and its reviewed-decision loop. */
.architecture{margin-top:42px;scroll-margin-top:90px}
.diagram-heading{display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line);padding-bottom:18px}
.diagram-hint{font-size:12px;line-height:1.6;color:var(--mid)}
.diagram-hint>span{margin-left:10px}
.engine-scene{position:relative;isolation:isolate;display:grid;grid-template-columns:145px repeat(3,minmax(0,1fr));grid-template-rows:auto 250px 162px auto;gap:44px 38px;padding:25px 9px 8px 0;margin-top:4px}
.engine-connections{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none;z-index:0}
.relationship{fill:none;stroke:#87a18d;stroke-width:1.5;stroke-linejoin:round;transition:stroke .18s,stroke-width .18s}
.relationship.selected-flow{stroke:var(--mid);stroke-width:2}
.relationship.return-route{stroke:#64876e;stroke-width:1.7}
.relationship.research-route{stroke:#9bab9b;stroke-dasharray:4 5}
.system-input,.frontier,.prism,.reuse-label,.local-foundation{position:relative;z-index:1}
.system-input{grid-column:1;grid-row:2;align-self:center;color:#515e52;font-size:13px;line-height:1.45;padding-right:5px;background:var(--paper)}
.system-input>.micro{display:block;font-size:10px;letter-spacing:.1em;color:var(--mid);margin-bottom:21px}
.system-input>div{display:flex;align-items:flex-start;gap:10px;margin:18px 0}
.system-input small{display:block;font-size:11px;line-height:1.55;margin-top:4px;color:#575e54}
.system-icon{font-size:23px;line-height:1.15;color:#535e50}
.frontier{grid-column:3/5;grid-row:1;display:flex;gap:12px;align-items:center;min-height:44px;padding:8px 13px;border:1px dashed #a8b9a7;background:var(--paper);color:#545f51;font-size:12px;line-height:1.5}
.frontier b{flex:none;font-size:12px;color:var(--green)}
.frontier-dot{width:6px;height:6px;flex:none;background:#809a79;border-radius:50%}
.prism{--face:#eef7f1;--edge:#d9eadb;--stroke:#abc5b1;--label:var(--mid);display:flex;flex-direction:column;align-items:stretch;text-align:left;min-width:0;width:100%;padding:23px 22px 21px;background:var(--face);color:var(--label);border:1px solid var(--stroke);border-radius:0;box-shadow:0 13px 18px -20px #294b38;transition:box-shadow .18s,border-color .18s;overflow:visible}
.prism::before{content:"";position:absolute;left:3px;right:-5px;top:-7px;height:6px;background:var(--face);border:1px solid var(--stroke);transform:skewX(-45deg);transform-origin:bottom;z-index:-1}
.prism::after{content:"";position:absolute;right:-8px;top:-4px;bottom:3px;width:7px;background:var(--edge);border:1px solid var(--stroke);transform:skewY(-45deg);z-index:-1}
.prism:hover,.prism[aria-pressed="true"]{box-shadow:0 0 0 2px var(--label),0 13px 18px -20px #294b38}
.prism:focus-visible{outline:3px solid var(--label);outline-offset:6px}
.node-top{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:10px;letter-spacing:.08em;font-weight:650;line-height:1.3;margin-bottom:15px}
.node-top>span:last-child{font-size:17px;line-height:1;letter-spacing:0}
.prism strong{display:block;font-size:22px;line-height:1.22;letter-spacing:-.035em;font-weight:600}
.node-desc{display:block;font-size:14px;line-height:1.6;color:#515d53;margin-top:14px}
.context-node{--face:var(--blue-bg);--edge:var(--blue-edge);--stroke:#a7c1d3;--label:var(--blue);grid-column:2;grid-row:2/4;align-self:start;min-height:348px}
.precedent-node{--face:var(--teal-bg);--edge:var(--teal-edge);--stroke:#a7cac2;--label:var(--teal);grid-column:3;grid-row:2}
.elements-node{--face:var(--amber-bg);--edge:var(--amber-edge);--stroke:#d9c18d;--label:var(--amber);grid-column:4;grid-row:2}
.review-node{--face:var(--lilac-bg);--edge:var(--lilac-edge);--stroke:#c4b0d0;--label:var(--lilac);grid-column:4;grid-row:3}
.memory-node{grid-column:3;grid-row:3}
.review-node .node-top,.memory-node .node-top{margin-bottom:11px}
.review-node strong,.memory-node strong{font-size:20px}
.review-node .node-desc,.memory-node .node-desc{margin-top:10px;font-size:14px}
.ontology-mini{display:grid;grid-template-columns:1fr 1fr;gap:7px 24px;position:relative;margin-top:24px;font-size:10px;line-height:1.35;max-width:195px;isolation:isolate}
.ontology-mini::before,.ontology-mini::after{position:absolute;content:"";height:1px;width:90%;background:#9db7c9;top:50%;left:5%;transform:rotate(27deg);z-index:-1}
.ontology-mini::after{transform:rotate(-27deg)}
.ontology-mini i{font-style:normal;border:1px solid #a7c1d3;background:#f9fcfe;text-align:center;padding:4px}
.ontology-mini b{grid-column:1/3;justify-self:center;background:var(--blue);color:white;padding:4px 13px}
.mini-compare{display:flex;gap:12px;align-items:center;align-self:flex-end;margin-top:auto;padding-top:16px;color:var(--teal)}
.mini-compare i{display:block;width:14px;height:28px;border:1px solid #85b8b0;border-radius:2px;transform:rotate(18deg)}
.mini-compare i:last-child{background:#d6ece6}
.evidence-lines{display:flex;align-self:flex-end;flex-direction:column;gap:6px;width:42px;margin-top:auto;padding-top:19px}
.evidence-lines i{height:2px;background:#cfb473}
.evidence-lines i:nth-child(2){width:31px}
.reuse-label{grid-column:2;grid-row:3;align-self:end;justify-self:start;display:flex;align-items:center;gap:10px;max-width:100%;padding:8px 0 8px 3px;font-size:12px;line-height:1.6;color:var(--mid);background:var(--paper)}
.reuse-label>span{font-size:27px;line-height:1}
.local-foundation{grid-column:2/5;grid-row:4;display:flex;align-items:center;gap:24px;padding:15px 19px;border:1px solid #abc2a9;background:#eef4e9;color:#4d6047;font-size:13px;line-height:1.55;box-shadow:5px 5px 0 #dce8d6}
.local-foundation b{font-size:13px;color:var(--mid);white-space:nowrap}
.engine-explanation{display:grid;grid-template-columns:48px 1fr 190px;gap:24px;align-items:center;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:27px 0;margin-top:38px;min-height:155px}
.explanation-index{font-size:34px;line-height:1;font-weight:350;letter-spacing:-.05em;color:var(--mid)}
.engine-explanation h3{font-size:21px;line-height:1.35;letter-spacing:-.025em;color:var(--green);margin:0 0 8px}
.engine-explanation p{font-size:15px;line-height:1.65;color:#525e4c;max-width:720px;margin:0}
.engine-explanation>a{font-size:12px;line-height:1.6;border-bottom:1px solid #9aad92;padding:8px 0;justify-self:end}
.engine-explanation>a span{margin-left:10px}
@media(max-width:1200px){
.engine-scene{grid-template-columns:125px repeat(3,minmax(0,1fr));column-gap:28px}
.prism{padding:22px 17px 19px}.prism strong{font-size:20px}.review-node strong,.memory-node strong{font-size:18px}
}
@media(max-width:1050px) and (min-width:761px){
.engine-scene{grid-template-columns:repeat(3,minmax(0,1fr));grid-template-rows:auto auto 250px 170px auto;gap:36px 30px}
.system-input{grid-column:1/4;grid-row:1;display:grid;grid-template-columns:100px repeat(3,minmax(0,1fr));gap:15px;align-items:start;padding:0 0 15px;border-bottom:1px solid var(--line)}
.system-input>.micro{margin:4px 0 0}.system-input>div{margin:0;gap:8px}.system-input small{font-size:11px}
.frontier{grid-column:2/4;grid-row:2}.context-node{grid-column:1;grid-row:3/5;min-height:350px}.precedent-node{grid-column:2;grid-row:3}.elements-node{grid-column:3;grid-row:3}.review-node{grid-column:3;grid-row:4}.memory-node{grid-column:2;grid-row:4}.reuse-label{grid-column:1;grid-row:4}.local-foundation{grid-column:1/4;grid-row:5}
.prism strong{font-size:20px}.review-node strong,.memory-node strong{font-size:19px}.node-desc{font-size:14px}.engine-explanation{grid-template-columns:38px 1fr;gap:20px}.engine-explanation>a{grid-column:2;justify-self:start;margin-top:-9px}
}
@media(max-width:760px){
.architecture{margin-top:30px}.diagram-heading{align-items:flex-start;gap:14px}.diagram-heading .eyebrow{max-width:140px}.diagram-hint{max-width:160px;font-size:11px;text-align:right}.diagram-hint>span{margin-left:3px}
.engine-scene{grid-template-columns:minmax(0,1fr);grid-template-rows:none;gap:32px;padding:20px 26px 8px 24px;margin-top:0}
.system-input{grid-column:1;grid-row:1;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;padding:0 0 16px;border-bottom:1px solid var(--line);font-size:12px}
.system-input>.micro{grid-column:1/-1;margin:0 0 4px}.system-input>div{display:block;margin:0}.system-icon{display:block;font-size:20px;margin-bottom:8px}.system-input small{font-size:10px;line-height:1.55;margin-top:5px}
.frontier{grid-column:1;grid-row:2;flex-wrap:wrap;gap:6px 10px;padding:11px 13px;font-size:12px}.frontier>span:last-child{flex-basis:100%;padding-left:16px}.frontier b{font-size:12px}
.prism{grid-column:1;min-height:0;padding:19px 20px 20px}.context-node{grid-row:3;min-height:0}.precedent-node{grid-row:4}.elements-node{grid-row:5}.review-node{grid-row:6}.memory-node{grid-row:7}.reuse-label{grid-column:1;grid-row:8;padding:0;max-width:100%;font-size:12px;gap:10px}.local-foundation{grid-column:1;grid-row:9;display:block;padding:15px 17px;font-size:12px}.local-foundation b{display:block;margin-bottom:5px}
.node-top{font-size:10px;margin-bottom:11px}.prism strong,.review-node strong,.memory-node strong{font-size:21px;line-height:1.25}.node-desc,.review-node .node-desc,.memory-node .node-desc{font-size:14px;line-height:1.65;margin-top:9px}
.ontology-mini{max-width:195px;margin-top:17px;gap:6px 24px}.ontology-mini i{padding:3px}.ontology-mini b{padding:3px 13px}
.mini-compare,.evidence-lines{display:none}.engine-explanation{grid-template-columns:30px minmax(0,1fr);gap:17px;padding:23px 0;margin-top:28px;min-height:0}.explanation-index{font-size:28px}.engine-explanation h3{font-size:20px}.engine-explanation p{font-size:14px;line-height:1.7}.engine-explanation>a{grid-column:2;justify-self:start;font-size:12px}
}
@media(prefers-reduced-motion:reduce){.relationship,.prism{transition:none}}

@media(max-width:760px){.ontology-mini{display:none}}