:root{--ink:#202b3a;--muted:#556171;--purple:#674bbc;--soft:#f3effb;--line:#e4e5eb;--teal:#137a75;--paper:#fff;font:100%/1.6 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper);color-scheme:light}*{box-sizing:border-box}body{margin:0}button,input,textarea{font:inherit}a{color:#5639a6;text-underline-offset:3px}button,.button{display:inline-flex;align-items:center;justify-content:center;gap:.6rem;border:1px solid var(--line);border-radius:8px;padding:.65rem 1rem;background:white;color:var(--ink);text-decoration:none;cursor:pointer;font-size:.94rem;min-height:44px}button:hover,.button:hover{border-color:var(--purple)}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #1964b0;outline-offset:4px}.primary,button[aria-pressed=true]{background:var(--purple);color:white;border-color:var(--purple)}[hidden]{display:none!important}.skip{position:absolute;left:16px;top:-80px;padding:12px;background:white;z-index:10}.skip:focus{top:10px}header{display:flex;justify-content:space-between;gap:20px;align-items:center;max-width:1400px;margin:auto;padding:20px 36px;border-bottom:1px solid var(--line)}.brand{font-size:1.75rem;letter-spacing:-1px;font-weight:700;text-decoration:none;color:var(--ink)}.brand span{color:var(--purple)}.brand small{font-size:.9rem;font-weight:400;letter-spacing:0;margin-left:.75rem;color:var(--muted)}.top-actions{display:flex;align-items:center;gap:20px}.prototype{font-size:.8rem;color:var(--muted)}main{max-width:1400px;margin:auto;min-height:70vh}footer{max-width:1328px;margin:50px auto 0;border-top:1px solid var(--line);padding:24px 0;color:var(--muted);font-size:.8rem}footer a{margin-left:18px}footer p{max-width:800px}h1,h2,h3{line-height:1.18;font-weight:600;letter-spacing:-.035em}h1{font-size:clamp(2rem,4.2vw,3.4rem);margin:0 0 20px}h2{font-size:clamp(1.65rem,3vw,2.3rem);margin:0 0 22px}h3{font-size:1.25rem;margin:0 0 12px}p{margin:0 0 18px}.eyebrow{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;font-weight:650;color:var(--purple);margin-bottom:12px}.lead{font-size:1.16rem;color:var(--muted);max-width:740px}.small,figcaption{font-size:.8rem;color:var(--muted)}.overview{padding:45px 36px}.overview-top{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:32px}.module-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}.module-card{border:1px solid var(--line);border-radius:10px;overflow:hidden;display:flex;flex-direction:column}.module-band{height:74px;border-top:4px solid var(--color);background:color-mix(in srgb,var(--color) 9%,white);padding:14px 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a[aria-current=true]{background:var(--soft);color:var(--purple);border-left-color:var(--purple)}.sidebar .back{padding:0;color:var(--ink);font-size:.86rem}.sidebar .progress-label{font-size:.85rem;margin:24px 0 10px}.sidebar .complete-dot{font-size:.9rem;color:var(--teal)}.lesson{min-width:0}.lesson-head{padding-bottom:28px;border-bottom:1px solid var(--line)}.lesson-section{padding:42px 0;border-bottom:1px solid var(--line);scroll-margin-top:20px}.section-header{display:flex;gap:18px;align-items:start}.section-number{font-size:.8rem;border-radius:50%;background:var(--soft);color:var(--purple);width:34px;height:34px;display:flex;align-items:center;justify-content:center;flex:0 0 34px;margin-top:4px}.section-header h2{max-width:680px}.two{display:grid;grid-template-columns:1fr 1fr;gap:24px}.three{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.panel{padding:24px;border:1px solid var(--line);border-radius:10px;background:white}.panel.tinted{background:var(--soft);border-color:transparent}.panel p:last-child{margin:0}.panel .label{display:block;font-size:.76rem;letter-spacing:.1em;text-transform:uppercase;font-weight:600;color:var(--purple);margin-bottom:14px}.terms-box{padding:26px;background:var(--soft);border-radius:12px}.terms-box>p{max-width:680px}.terms-box .two{margin-top:22px}.terms-box .panel{border:0}.definition-mark{font-size:1.8rem;line-height:1;margin-bottom:16px;color:var(--purple)}.source{font-size:.78rem;color:var(--muted);margin-top:14px}.source a{color:inherit}.takeaway{padding:17px 20px;border-left:4px solid var(--teal);background:#f1f8f7;margin:25px 0}.takeaway p{margin:0}.section-complete{margin-top:26px}.section-complete.done{color:var(--teal);background:#eff8f4;border-color:#b9d7cd}.photo{margin:0 0 24px}.photo img{display:block;width:100%;height:auto;max-height:430px;object-fit:cover;border-radius:10px}.photo 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0;padding:0}.compare-list li{padding:9px 0;border-top:1px solid var(--line)}.pill{display:inline-block;background:var(--soft);border-radius:20px;padding:3px 10px;font-size:.75rem;color:var(--purple);margin:0 5px 8px 0}.palm-feature{border:2px solid #b1a1d6;border-radius:12px;overflow:hidden;margin:22px 0}.palm-photo img{width:100%;display:block;max-height:530px;object-fit:contain;background:#f5f5f7}.palm-caption{padding:12px 22px;font-size:.8rem;color:var(--muted)}.palm-controls{padding:22px;background:var(--soft)}.palm-steps{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px}.palm-step-text{min-height:114px;max-width:740px}.palm-step-text h3{color:#5333a3}.palm-step-text p{margin:0}.micro-check{background:#f6f7fa;padding:22px;border-radius:10px;margin-top:22px}.micro-check fieldset{border:0;padding:0;margin:0}.micro-check legend{font-weight:550;margin-bottom:12px}.option{display:flex;gap:12px;align-items:start;border:1px solid var(--line);padding:13px 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h1{font-size:3rem}.classroom .lesson-section{padding:50px 0}.classroom .photo img{max-height:560px}.classroom .prototype{display:none}.classroom .panel{font-size:1.1rem}@media(min-width:1250px){.lesson{max-width:1000px}}@media(max-width:1050px){.module-grid{grid-template-columns:repeat(2,1fr)}.layout{grid-template-columns:200px minmax(0,1fr);gap:28px}.three{grid-template-columns:1fr}.population{grid-template-columns:1fr 1fr}.cue-details{grid-template-columns:1fr 1fr}footer{margin-left:30px;margin-right:30px}}@media(max-width:760px){header{padding:18px 20px}.brand{font-size:1.45rem}.brand small{display:none}.prototype{display:none}.layout{grid-template-columns:1fr;padding:24px 20px;gap:15px}.sidebar{position:static;border-bottom:1px solid var(--line);padding-bottom:20px}.sidebar nav{grid-template-columns:1fr 1fr;gap:0}.sidebar a{font-size:.8rem;padding:9px}.sidebar .progress-label{margin-top:12px}.overview{padding:28px 20px}.overview-top{align-items:start;flex-direction:column}.two,.experience,.population{grid-template-columns:1fr}.flow-diagram{flex-direction:column;align-items:stretch}.flow-diagram>.flow-arrow{transform:rotate(90deg)}.info-path{grid-template-columns:1fr}.palm-step-text{min-height:170px}.dots{max-width:320px}.lesson-section{padding:30px 0}.cue-details{grid-template-columns:1fr 1fr}.classroom .lesson-head h1{font-size:2.25rem}.classroom .lesson{font-size:1.05rem}}@media(max-width:420px){.module-grid{grid-template-columns:1fr}.top-actions button{font-size:.8rem;padding:.5rem}.cue-details{grid-template-columns:1fr}.panel,.terms-box{padding:18px}.sidebar nav{grid-template-columns:1fr 1fr}.section-number{display:none}.palm-steps button{flex:1;padding:.5rem;font-size:.8rem}}@media print{header,.sidebar,footer,.video-actions,.video-slot,.section-complete,.top-actions,.toolbar,button{display:none!important}.layout{display:block;padding:0}.lesson-section{break-inside:avoid;padding:20px 0}.photo img{max-height:240px}.palm-photo img{max-height:350px}a{color:inherit}.lesson{max-width:none}.note-input{height:230px}.overview{display:none}}

/* Section checks and contextual evidence */
button:disabled{cursor:not-allowed;background:#f0f1f5;color:#626b78;border-color:#d5d8df}
button:disabled:hover{border-color:#d5d8df}
.section-check fieldset:disabled .option{cursor:default}
.section-check .eyebrow{margin-bottom:12px}
.section-check button[type=submit]{margin-top:10px}
.completion-hint{margin:15px 0 8px}
.completion-hint+.section-complete{margin-top:0}
.dot.range{background:white;border:3px solid var(--purple)}
.sample-dots{grid-template-columns:repeat(8,minmax(0,1fr))}
.chart-legend{margin:14px 0 0}
.population .big-number{margin-bottom:10px}
.population .eyebrow{font-size:.76rem;letter-spacing:.08em}
.evidence-context{border-top:1px solid var(--line);padding-top:16px}
.image-study{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px;align-items:center;margin:28px 0;padding:24px;background:#f6f7fa;border-radius:10px}
.image-study figure{margin:0}
.image-study .photo img{max-height:420px;object-fit:contain;background:white}
.image-study h3{font-size:1.4rem}
.image-study ul{padding-left:22px}
.image-study li{margin:12px 0}
@media(max-width:760px){.image-study{grid-template-columns:1fr;padding:20px}.population{gap:20px}.dots{max-width:280px}}
@media print{.section-check input{appearance:none}.section-check .option{border:0;margin:4px 0;padding:4px 0}.completion-hint{display:none}}

.audience-stories{margin:4px 0 30px}.story-card{border:1px solid var(--line);border-top:4px solid var(--purple);border-radius:10px;padding:25px;background:#fff}.story-card:nth-child(2){border-top-color:var(--teal)}.story-name{font-size:1.65rem;font-weight:600;line-height:1.2;color:var(--purple);margin-bottom:8px}.story-card:nth-child(2) .story-name{color:var(--teal)}.story-card h3{font-size:1.1rem;letter-spacing:0;line-height:1.4}.story-question{background:#f6f7fa;padding:15px;border-radius:6px;margin-bottom:0}.overview-top h1{max-width:900px}.diffusion-figure{margin:24px 0}.diffusion-figure img{width:100%;height:auto;display:block}.diffusion-copy{max-width:780px}.diffusion-figure figcaption{margin-top:10px}

.survey-start{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:26px;background:var(--soft);border-radius:10px;margin-bottom:32px}.survey-start h2{font-size:1.5rem;margin-bottom:8px}.survey-start p:last-child{margin:0}.survey-start a{flex-shrink:0}.course-section-title{font-size:1.5rem}.course-finish{margin-top:42px;padding-top:30px;border-top:1px solid var(--line)}.course-finish .panel{display:flex;flex-direction:column;gap:8px}.course-finish .panel a{margin-top:auto}.planned{color:var(--muted);font-size:.85rem}@media(max-width:760px){.survey-start{align-items:start;flex-direction:column}.survey-start a{width:100%}}
.foundation-notes>article{padding:22px 0;border-bottom:1px solid var(--line)}.foundation-notes>article:last-child{border:0}.foundation-notes h3{margin-bottom:12px}.type-comparison{margin:22px 0;gap:16px}.type-comparison .label{font-size:.875rem;color:var(--muted)}.type-sample{font-family:Arial,sans-serif;font-size:16px;background:#f6f7fa;padding:18px;overflow-wrap:anywhere}.type-close{line-height:1.35}.type-open{line-height:1.9}.expert-note{margin:26px 0;padding:26px;border-left:4px solid var(--purple);background:var(--soft)}.expert-note h3{font-size:1.5rem}.pattern-pair{display:flex;flex-wrap:wrap;gap:28px;margin:18px 0}.pattern-pair>div{background:#f7f8fa;border-radius:8px;padding:14px}.pattern-pair p{font-size:.875rem;margin:5px 0 0}.pattern-detail{margin-left:12px}.design-foundations{margin-top:30px}.control-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.control-grid h4{font-size:1.05rem;margin:0 0 12px}.control-grid .panel:last-child{grid-column:1/-1}.static-sequence{display:flex;gap:6px;margin-top:16px}.static-sequence span{font-size:.875rem;padding:8px;background:#e3daef;border-radius:4px}.static-sequence span:nth-child(even){background:#f1edf6}.cue-timeline{margin:24px 0;display:grid;grid-template-columns:1fr 1fr;gap:20px}.cue-timeline article{padding:22px;background:#f6f7fa;border-top:4px solid #a44371}.cue-timeline article+article{border-top-color:var(--teal)}.cue-timeline .label{font-size:.875rem;display:block;margin-bottom:14px}.cue-timeline p{margin:0}.scenario-grid{margin-top:20px}.age-comparison{margin:20px 0}.palm-photo img{background:white}.source,.small,figcaption,.video-notice{font-size:.875rem}@media(max-width:760px){.control-grid,.cue-timeline{grid-template-columns:1fr}.control-grid .panel:last-child{grid-column:auto}.type-sample{font-size:16px}.expert-note{padding:20px}}@media print{.pattern-detail{display:none}.cue-timeline article,.control-grid article,.story-card{break-inside:avoid}.expert-note{break-inside:avoid}}

/* Course-wide access and the foundations spectrum */
.global-nav{max-width:1400px;margin:auto;padding:0 36px;display:flex;flex-wrap:wrap;gap:6px 24px;border-bottom:1px solid var(--line)}.global-nav a{font-size:.9rem;color:var(--muted);padding:13px 0;text-decoration:none;border-bottom:3px solid transparent}.global-nav a[aria-current=page]{color:var(--purple);border-bottom-color:var(--purple)}.course-tools{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin:0 0 38px}.course-tool{display:block;position:relative;border:1px solid var(--line);border-top:3px solid var(--purple);border-radius:8px;padding:22px;text-decoration:none;color:var(--ink)}.course-tool:nth-child(2){border-top-color:var(--teal)}.course-tool:nth-child(3){border-top-color:#a44371}.course-tool:nth-child(4){border-top-color:#176eaa}.course-tool:hover{background:#f8f7fc}.course-tool h2{font-size:1.1rem;margin:9px 0 12px;letter-spacing:-.02em}.course-tool p{font-size:.9rem;color:var(--muted);margin:0}.tool-index{font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted)}.tool-open{position:absolute;right:18px;top:16px;color:var(--purple)}.module-body .module-download-link{font-size:.9rem;margin-top:14px;padding:5px 0}.course-hub{padding:36px;max-width:1320px;margin:auto}.course-hub>.back{display:inline-block;margin-bottom:24px;font-size:.9rem}.course-hub>h1{font-size:clamp(2rem,4vw,3rem)}.hub-nav{display:flex;flex-wrap:wrap;gap:10px;margin:28px 0 32px;padding-bottom:24px;border-bottom:1px solid var(--line)}.hub-nav a{padding:10px 15px;border-radius:7px;color:var(--muted);text-decoration:none;font-size:.94rem}.hub-nav a[aria-current=page]{color:#fff;background:var(--purple)}.hub-section{margin-top:40px}.hub-section.first-section{margin-top:0}.hub-section>h2{font-size:1.7rem}.instructor-feature{display:grid;grid-template-columns:1.3fr 1fr;gap:40px;border:1px solid #c1b3dd;border-top:5px solid var(--purple);padding:30px;border-radius:10px}.instructor-feature h2{font-size:2rem}.instructor-materials{border-left:1px solid var(--line);padding-left:30px}.instructor-materials a{display:block;padding:10px 0}.instructor-modules{display:grid;grid-template-columns:1fr 1fr;gap:18px}.instructor-module{display:flex;gap:18px;border:1px solid var(--line);padding:22px;border-radius:8px;border-left:4px solid var(--color)}.module-index{font-size:1.8rem;color:var(--color);line-height:1.2}.instructor-module h3{font-size:1.08rem;line-height:1.35;letter-spacing:-.02em}.instructor-module p{font-size:.9rem;color:var(--muted);margin:0 0 12px}.portal-status{margin-top:36px}.resource-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.resource-card{padding:24px;border:1px solid var(--line);border-radius:8px;display:flex;flex-direction:column}.resource-card h3{line-height:1.35;font-size:1.14rem}.resource-card p{color:var(--muted);font-size:.95rem}.resource-card a{margin-top:auto}.download-toolbar{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-bottom:30px}.download-toolbar label,.video-library-controls label{font-weight:600}.course-hub select{font:inherit;padding:10px 36px 10px 14px;background:#fff;color:var(--ink);border:1px solid #aeb5c1;border-radius:7px;min-height:44px;max-width:100%;text-overflow:ellipsis}.course-hub select:focus-visible{outline:3px solid #1964b0;outline-offset:4px}.module-download-section{margin:28px 0 38px;border:1px solid var(--line);border-radius:10px;overflow:hidden}.download-heading{display:flex;align-items:center;gap:20px;padding:24px;background:color-mix(in srgb,var(--color) 7%,white);border-top:4px solid var(--color)}.download-heading>span{font-size:2.1rem;color:var(--color)}.download-heading h2{font-size:1.45rem;margin:0}.download-heading .eyebrow{color:var(--color);margin-bottom:7px}.download-row{display:flex;justify-content:space-between;gap:25px;align-items:center;padding:22px 24px;border-bottom:1px solid var(--line)}.download-row strong{font-size:1.02rem}.download-row p{margin:5px 0 8px;color:var(--muted);font-size:.9rem}.file-format{font-size:.8rem;color:var(--muted)}.download-actions{display:flex;gap:20px;align-items:center;flex-shrink:0}.download-actions>a:first-child{font-size:.9rem}.source-note{padding:20px 24px;margin:0}.video-library-controls{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-bottom:30px}.video-library-controls p{flex-basis:100%;margin:0}.video-library-list{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}.library-video{min-width:0}.library-video .video-card{margin:9px 0 0}.video-lesson-link{font-size:.875rem;margin:0}.library-video .video-copy{padding:22px}.spectrum{margin:28px 0;border:1px solid var(--line);border-radius:12px;padding:26px;background:white}.spectrum h3{font-size:1.65rem}.spectrum-band{display:grid;grid-template-columns:repeat(6,1fr);height:12px;gap:4px;margin:24px 0 20px}.spectrum-band span:nth-child(1){background:#176eaa}.spectrum-band span:nth-child(2){background:#137a75}.spectrum-band span:nth-child(3){background:#9c6218}.spectrum-band span:nth-child(4){background:#674bbc}.spectrum-band span:nth-child(5){background:#a44371}.spectrum-band span:nth-child(6){background:#416b84}.spectrum-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.spectrum-grid article{border-top:3px solid var(--spectrum-color);padding:14px 0 0}.spectrum-grid h4{font-size:1rem;line-height:1.4;margin:0 0 10px;color:var(--spectrum-color)}.spectrum-grid p{font-size:.94rem;margin:0}.spectrum-note{padding:18px 0 0;margin:22px 0 0;border-top:1px solid var(--line);font-size:.94rem}.production-photo{margin:24px 0}.production-photo img{max-height:none;object-fit:contain}.photo-reading{padding:20px 24px;background:#f4f6f9;border-radius:8px;margin-bottom:28px}.photo-reading h3{font-size:1.1rem}.photo-reading p{margin:0}.classroom .global-nav{display:none}@media(max-width:1000px){.course-tools{grid-template-columns:repeat(2,1fr)}.resource-grid{grid-template-columns:1fr 1fr}.download-toolbar select{max-width:70%}.video-library-list{grid-template-columns:1fr}}@media(max-width:760px){.global-nav{padding:0 20px;gap:0 18px}.global-nav a{font-size:.84rem;padding:10px 0}.course-hub{padding:28px 20px}.instructor-feature{grid-template-columns:1fr;padding:22px;gap:24px}.instructor-materials{border-left:0;border-top:1px solid var(--line);padding:22px 0 0}.instructor-modules{grid-template-columns:1fr}.resource-grid{grid-template-columns:1fr}.download-row{flex-direction:column;align-items:start;gap:14px;padding:20px}.download-heading{align-items:start;padding:20px}.download-heading h2{font-size:1.25rem}.download-toolbar{align-items:start;flex-direction:column}.download-toolbar select{width:100%;max-width:100%}.spectrum-grid{grid-template-columns:1fr 1fr}.spectrum{padding:20px}.hub-nav{gap:4px}.hub-nav a{padding:9px 10px;font-size:.875rem}}@media(max-width:420px){.course-tools{grid-template-columns:1fr;gap:12px}.course-tool{padding:18px}.course-tool p{max-width:280px}.spectrum-grid{grid-template-columns:1fr}.spectrum-band{gap:3px}.download-actions{gap:14px}.instructor-module{padding:18px;gap:14px}}@media print{.global-nav,.hub-nav,.course-tools,.download-actions,.video-library-controls,.download-toolbar{display:none!important}.course-hub{padding:0}.spectrum,.production-photo,.instructor-module{break-inside:avoid}.spectrum-grid{grid-template-columns:repeat(3,1fr)}}

.course-contact{font-size:1rem;color:var(--ink);margin-bottom:18px}.course-contact a{margin-left:0}