/* Presentation layout: one idea on stage, explanation on the next reveal. */
.theory-page{display:flex;flex-direction:column;min-height:calc(100svh - 148px)}
.foundation-workbar{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:50px}
.theory-progress-wrap{display:flex;align-items:center;gap:18px;min-width:0}
.theory-group{font-size:18px;font-weight:550;color:#285f50;white-space:nowrap;padding-right:18px;border-right:1px solid #d8e2dc}
.theory-progress{display:flex;align-items:center;gap:22px;list-style:none;margin:0;padding:0;min-width:0}
.theory-progress li{display:flex;align-items:center;gap:8px;color:#737e89;white-space:nowrap;font-size:17px}
.theory-progress li span{font-size:15px;font-variant-numeric:tabular-nums}
.theory-progress li b{font-weight:400}
.theory-progress li.current{color:#285f50}
.theory-progress li.current b{font-weight:600}
.theory-progress li.current span{display:grid;place-items:center;background:#eaf2ee;width:30px;height:30px;border-radius:50%}
.theory-progress li.done{color:#4c6e61}
.foundation-topic{display:flex;align-items:center;gap:12px;flex-shrink:0}
.foundation-topic label{font-size:17px;color:#5c6774}
.foundation-topic select{font-size:18px;padding:10px 32px 10px 13px;border:1px solid #d9e0e5;border-radius:7px;background:#fff;color:#2a3b34;width:238px;max-width:100%}
.theory-slide{flex:1;display:flex;flex-direction:column;justify-content:center;padding:36px 0 46px}
.foundation-heading{width:100%;max-width:none;margin:0 auto;text-align:center}
.foundation-heading .kicker{font-size:18px;letter-spacing:1.5px;color:#397160;margin:0 0 18px}
.foundation-heading h1{font-size:clamp(36px,3.2vw,52px);font-weight:650;line-height:1.4;letter-spacing:-.7px;color:#202c30;margin:0}
.foundation-stage{width:100%;max-width:1040px;margin:23px auto 0}
.foundation-lead{font-size:25px;line-height:1.8;text-align:center;color:#596671;font-weight:400;margin:0 auto 35px;max-width:1000px}
.foundation-flow{display:grid;grid-template-columns:minmax(0,1fr) 40px minmax(0,1fr) 40px minmax(0,1fr);align-items:center;gap:10px;border:1px solid #e1e7e4;border-radius:16px;background:#fff;padding:42px 26px}
.foundation-flow.two{grid-template-columns:minmax(0,1fr) 40px minmax(0,1fr)}
.foundation-flow.is-comparison{grid-template-columns:repeat(3,minmax(0,1fr));gap:0;padding:38px 20px}
.foundation-flow.is-comparison.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.foundation-node{text-align:center;min-width:0;padding:6px 4px}
.foundation-node h2{font-size:32px;font-weight:550;line-height:1.5;color:#283c35;margin:0 0 12px;overflow-wrap:anywhere}
.foundation-node p{font-size:20px;line-height:1.7;color:#5e6d68;margin:0}
.foundation-node:last-child h2{color:#28634f}
.foundation-flow.is-comparison .foundation-node{padding:5px 18px}
.foundation-flow.is-comparison .foundation-node+ .foundation-node{border-left:1px solid #e0e7e3}
.flow-connector{font-size:36px;font-weight:300;text-align:center;color:#8ca297;line-height:1}
.foundation-interpretation{max-width:970px;margin:0 auto}
.foundation-interpretation.compact-interpretation{max-width:none}
.foundation-copy{font-size:25px;line-height:1.95;color:#43524e;margin:0}
.theory-bridge{margin-top:30px;padding-top:25px;border-top:1px solid #dce5df}
.theory-bridge>span{font-size:17px;color:#637c70}
.theory-bridge h2{font-size:29px;line-height:1.5;font-weight:550;color:#285f50;margin:10px 0}
.theory-bridge p{font-size:21px;line-height:1.8;color:#5d6964;margin:0}
.foundation-footer{display:flex;align-items:center;gap:22px;border-top:1px solid #dce1e6;padding:21px 0 0;margin-top:auto;min-height:79px}
.foundation-footer .stage-note{margin-right:auto;font-size:17px;color:#6a7580}
.foundation-footer .primary{min-width:202px;flex-shrink:0}
.foundation-reading{font-size:18px;white-space:nowrap}
.foundation-footer .lesson-back:disabled{color:#9aa4ad;opacity:1;cursor:default}
.foundation-scenario{background:#fff;border:1px solid #e1e7e4;border-radius:16px;padding:22px 26px}
.scenario-head{display:flex;align-items:center;justify-content:space-between;gap:18px}
.scenario-head>span{font-size:18px;color:#63716b}
.scenario-options{display:flex;gap:6px;padding:4px;border-radius:7px;background:#f0f4f2}
.scenario-options button{font-size:18px;padding:7px 16px;line-height:1.5;border-radius:5px;color:#56665e;white-space:nowrap}
.scenario-options button.active{background:#fff;box-shadow:0 1px 5px #1e382214;color:#285e48;font-weight:600}
.foundation-scenario svg{display:block;width:100%;height:155px;max-width:830px;margin:12px auto 8px}
.scenario-caption{display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:17px;color:#64746d;max-width:830px;margin:0 auto}
.scenario-caption span:last-child{color:#345b47}
.scenario-caption.breaks span:last-child{color:#825238}
.premise-presentation{display:flex;flex-direction:column;justify-content:center;min-height:530px;padding:28px 0 40px}
.premise-presentation .learn-heading{width:100%;max-width:none;margin:0 auto;text-align:center}
.premise-presentation h1{font-size:clamp(35px,3vw,48px);line-height:1.45;margin-top:16px}
.premise-stage{width:100%;max-width:1040px;margin:24px auto 0}
.premise-stage .foundation-lead{font-size:24px}
.premise-stage .foundation-node h2{font-size:28px}
.premise-sources{font-size:18px;white-space:nowrap}
.concept-visual{display:grid;border:1px solid #e1e7e4;border-radius:16px;background:#fff;padding:26px 18px}
.concept-visual figure{min-width:0;margin:0;padding:0 20px;text-align:center}
.concept-visual figure+figure{border-left:1px solid #e1e7e4}
.concept-visual h2{font-size:27px;font-weight:550;line-height:1.5;margin:0 0 17px;color:#2b483c}
.concept-visual svg{display:block;width:100%;height:126px;margin:0 auto 17px}
.concept-visual figcaption{font-size:20px;line-height:1.7;color:#5c6b64}
.trend-types{grid-template-columns:repeat(3,minmax(0,1fr))}
.momentum-examples{grid-template-columns:repeat(2,minmax(0,1fr))}
.momentum-examples figcaption{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:19px}
.information-scope{display:grid;grid-template-columns:160px minmax(0,1fr);align-items:center;gap:16px;padding:18px;border:2px solid #dce5df;border-radius:14px;background:#fff;min-width:0}
.information-scope.active{border-color:#36765d;background:#f1f7f3}
.information-scope.scope-leaf{display:flex;justify-content:center;min-height:146px;padding:20px}
.scope-label{display:flex;flex-direction:column;gap:7px;text-align:center;min-width:0}
.scope-label h2{font-size:27px;line-height:1.45;font-weight:550;color:#51645a;margin:0}
.scope-label strong{font-size:21px;line-height:1.6;font-weight:500;color:#52665b}
.scope-label span{font-size:18px;line-height:1.7;color:#617167}
.information-scope.active>.scope-label h2,.information-scope.active>.scope-label strong{color:#225a43}
.source-card{padding:20px 0;border-top:1px solid #e0e5e9}
.source-card h3{font-size:20px;line-height:1.65;font-weight:550;color:#2c4c3c;overflow-wrap:anywhere}
.source-card a{color:#285d82;text-decoration-thickness:1px;text-underline-offset:4px}
.source-card .source-author{font-size:16px;color:#626f7c;margin:9px 0}
.source-card p{font-size:18px;line-height:1.8}
.reading-context h3{font-size:21px;font-weight:550;color:#2c4c3c;margin:18px 0 9px}
.reading-context h3:first-child{margin-top:0}
.reading-context p{font-size:19px;line-height:1.9;color:#52605a;margin-bottom:14px}
.reading-title{font-size:19px;margin:25px 0 15px;color:#61746a}
.learn-heading p:empty{display:none}
@media(min-width:1600px){
 .foundation-lead{font-size:27px;margin-bottom:43px}.foundation-flow{padding-top:48px;padding-bottom:48px}.foundation-node h2{font-size:37px}.foundation-node p{font-size:22px}.foundation-copy{font-size:27px}.theory-bridge h2{font-size:31px}.theory-bridge p{font-size:23px}.foundation-scenario svg{height:190px}.premise-presentation{min-height:570px}
}
@media(min-width:951px) and (max-height:850px){
 .theory-page{min-height:calc(100svh - 112px)}.theory-slide{padding:24px 0 30px}.foundation-heading .kicker{margin-bottom:12px}.foundation-heading h1{font-size:40px}.foundation-stage{margin-top:18px}.foundation-lead{font-size:24px;margin-bottom:25px}.foundation-flow{padding-top:30px;padding-bottom:30px}.foundation-flow.is-comparison{padding-top:30px;padding-bottom:30px}.foundation-copy{font-size:23px;line-height:1.9}.theory-bridge{margin-top:22px;padding-top:20px}.theory-bridge h2{font-size:28px}.foundation-scenario{padding-top:16px;padding-bottom:16px}.foundation-scenario svg{height:135px}.foundation-footer{padding-top:16px;min-height:74px}.premise-presentation{min-height:465px;padding-bottom:28px}.premise-presentation h1{font-size:39px}
 .sidebar-brand{padding-bottom:10px}.nav-item{padding-top:6px;padding-bottom:6px;min-height:64px;margin-top:5px}.nav-group{margin-top:10px}.nav-group-label{margin-bottom:6px}.sidebar-bottom{padding-top:10px}.sidebar-bottom>button{padding-top:14px;padding-bottom:14px}
}
@media(min-width:951px) and (max-width:1250px){
 .foundation-workbar{gap:16px;flex-wrap:wrap}.foundation-topic{margin-left:auto}.theory-progress{gap:16px}.theory-progress li{font-size:16px}.foundation-node h2{font-size:28px}.foundation-node p{font-size:19px}.foundation-flow{padding-left:20px;padding-right:20px;gap:6px}.foundation-heading h1{font-size:36px}
}
@media(max-width:950px){
 .theory-page{min-height:calc(100svh - 124px)}.foundation-workbar{flex-wrap:wrap;gap:16px}.foundation-topic{margin-left:auto}.theory-progress{gap:18px}.theory-progress li{font-size:17px}.theory-slide{padding:38px 0}.foundation-heading h1{font-size:36px}.foundation-lead{font-size:23px}.foundation-flow{padding:28px 16px;gap:4px;grid-template-columns:minmax(0,1fr) 26px minmax(0,1fr) 26px minmax(0,1fr)}.foundation-node h2{font-size:27px}.foundation-node p{font-size:19px}.flow-connector{font-size:28px}.foundation-copy{font-size:23px}.theory-bridge h2{font-size:28px}.theory-bridge p{font-size:20px}.foundation-footer{gap:17px}.foundation-footer .stage-note{font-size:16px}.foundation-footer .primary{min-width:180px}.foundation-reading{font-size:17px}.premise-presentation{min-height:480px}.premise-presentation h1{font-size:35px}.premise-stage .foundation-lead{font-size:23px}.premise-stage .foundation-node h2{font-size:25px}
}
@media(max-width:700px){
 .theory-page{min-height:0}.foundation-workbar{gap:22px}.theory-progress{order:2;gap:14px;flex-wrap:wrap}.theory-progress li{font-size:16px;gap:6px}.theory-progress li span{font-size:14px}.theory-progress li.current span{width:25px;height:25px}.foundation-topic{width:100%;justify-content:space-between}.foundation-topic select{width:min(78%,280px);font-size:17px}.foundation-heading h1{font-size:32px;line-height:1.5}.foundation-heading .kicker{font-size:17px;margin-bottom:14px;letter-spacing:.6px}.theory-slide{padding:34px 0}.foundation-stage{margin-top:19px}.foundation-lead{font-size:22px;text-align:left;margin-bottom:24px}.foundation-flow,.foundation-flow.two,.foundation-flow.is-comparison,.foundation-flow.is-comparison.two{grid-template-columns:1fr;padding:22px 18px;gap:7px}.foundation-node{padding:12px 4px}.foundation-node h2{font-size:29px;margin-bottom:6px}.foundation-node p{font-size:19px}.flow-connector{transform:rotate(90deg);font-size:26px;justify-self:center}.foundation-flow.is-comparison .foundation-node{padding:18px 8px}.foundation-flow.is-comparison .foundation-node+ .foundation-node{border-left:0;border-top:1px solid #e0e7e3}.foundation-copy{font-size:22px;line-height:1.9}.theory-bridge{margin-top:26px;padding-top:22px}.theory-bridge h2{font-size:26px}.theory-bridge p{font-size:20px}.foundation-footer{display:grid;grid-template-columns:1fr 1fr;gap:19px 12px;padding-top:20px;min-height:0}.foundation-footer .lesson-back{justify-self:start}.foundation-footer .stage-note{margin:0;justify-self:end}.foundation-footer .primary{min-width:0;font-size:18px}.foundation-reading{justify-self:start;font-size:18px}.foundation-scenario{padding:17px 16px}.scenario-head{flex-wrap:wrap;gap:13px}.scenario-head>span{font-size:17px}.scenario-options{margin-left:auto}.scenario-options button{font-size:17px;padding:6px 12px}.foundation-scenario svg{height:145px}.scenario-caption{font-size:16px;gap:16px;align-items:flex-start}.premise-presentation{min-height:0;padding:34px 0 20px}.premise-presentation h1{font-size:31px}.premise-stage .foundation-lead{font-size:22px}.premise-stage .foundation-node h2{font-size:27px}.lesson-footer .premise-sources{margin-left:auto;font-size:18px}.lesson-footer:has(.premise-sources) .primary{width:auto}.reading-context p{font-size:18px}.lesson-progress{gap:7px 9px}
}
@media(prefers-reduced-motion:reduce){.theory-page .reveal,.premise-stage.reveal{animation:none}}
@media(max-width:950px){.information-scope{grid-template-columns:125px minmax(0,1fr);padding:15px;gap:12px}.scope-label h2{font-size:25px}.scope-label strong{font-size:20px}.scope-label span{font-size:18px}}
@media(max-width:700px){.information-scope{grid-template-columns:1fr;padding:17px 13px;gap:18px}.information-scope.scope-leaf{min-height:126px;padding:17px 10px}.scope-label{gap:3px}.scope-label h2{font-size:25px}.scope-label strong{font-size:20px}.scope-label span{font-size:18px}}
@media(min-width:951px) and (max-height:850px){
 .concept-visual{padding-top:22px;padding-bottom:22px}.concept-visual h2{font-size:26px;margin-bottom:12px}.concept-visual svg{height:105px;margin-bottom:12px}.concept-visual figcaption{font-size:19px}.momentum-examples figcaption{font-size:18px}
}
@media(max-width:950px){
 .concept-visual{padding:24px 12px}.concept-visual figure{padding:0 14px}.concept-visual h2{font-size:24px}.concept-visual svg{height:110px}.concept-visual figcaption{font-size:18px}.momentum-examples figcaption{font-size:17px}
}
@media(max-width:700px){
 .theory-progress-wrap{order:2;width:100%;gap:12px;flex-wrap:wrap}.theory-group{padding-right:12px;font-size:17px}.theory-progress-wrap .theory-progress{gap:10px}.theory-progress-wrap:has(.theory-group) .theory-progress{gap:8px}.theory-progress-wrap:has(.theory-group) .theory-progress li{font-size:15px;gap:5px}
 .concept-visual{grid-template-columns:1fr;padding:8px 20px}.concept-visual figure{padding:22px 0}.concept-visual figure+figure{border-left:0;border-top:1px solid #e1e7e4}.concept-visual h2{font-size:25px;margin-bottom:13px}.concept-visual svg{height:110px;max-width:330px;margin-bottom:12px}.concept-visual figcaption,.momentum-examples figcaption{font-size:19px}
}
@media(min-width:951px) and (min-height:851px) and (max-height:950px){
 .sidebar-brand{padding-bottom:16px}.nav-group{margin-top:16px}.nav-item{padding-top:10px;padding-bottom:10px;min-height:72px}.sidebar-bottom{padding-top:15px}.sidebar-bottom>p{display:none}
}