:root{--ink:#132844;--muted:#526a85;--purple:#5b49eb;--teal:#068a87;--line:#dce6f0;--bg:#f3f7fb;--soft:#edf0f8;--body:clamp(22px,1.95vw,29px);--title:clamp(34px,3.3vw,52px);--radius:24px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,'Segoe UI',Arial,sans-serif;color:var(--ink);background:radial-gradient(ellipse at 98% 2%,#e9eafa,transparent 45%),radial-gradient(ellipse at 0% 95%,#e1f2f2,transparent 40%),var(--bg)}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{color:inherit}a{color:var(--purple)}button:not(:disabled),summary{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:4px solid #0d8b88;outline-offset:3px}p{line-height:1.42;margin:.5em 0}h1,h2,h3{line-height:1.12;letter-spacing:-.025em}h1{font-size:var(--title);margin:10px 0 12px}h2{font-size:1.45em;margin:.5em 0}h3{font-size:1.06em;margin:9px 0}em{font-style:normal;color:var(--purple)}[hidden]{display:none!important}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;border:1px solid transparent;border-radius:13px;padding:11px 16px;background:#eaf0f6;color:var(--ink);text-decoration:none;font-weight:750;font-size:16px;line-height:1.2;text-align:center;transition:background .15s,box-shadow .15s}.btn:hover{background:#dfe7f1}.btn.primary{background:linear-gradient(100deg,#6350f3,#486ce8);color:white;box-shadow:0 7px 16px #5545db16}.btn.primary:hover{background:#4434c8}.btn.outline{background:white;border-color:var(--line)}.btn:disabled{opacity:.48;cursor:default}.actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.pill{display:inline-flex;font-size:13px;font-weight:800;background:#ece9ff;color:#4534c7;padding:7px 12px;border-radius:30px}.eyebrow,.kicker{display:block;font-size:clamp(13px,1.1vw,16px);font-weight:850;letter-spacing:.075em;color:var(--purple);text-transform:uppercase}.subtitle{font-size:var(--body);color:var(--muted);margin:0 0 20px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 22px;border-bottom:1px solid var(--line);background:#ffffffdb}.brand{display:flex;align-items:center;gap:12px;min-width:0}.brand strong{font-size:17px;display:block;line-height:1.2}.brand small{display:block;color:var(--muted);font-size:13px;margin-top:5px}.badge{font-size:16px;display:grid;place-items:center;width:54px;height:50px;flex-shrink:0;border-radius:14px;background:var(--ink);color:white;font-weight:850}.toolbar{display:flex;gap:7px;align-items:center;flex-wrap:wrap;justify-content:flex-end}.toolbar .btn{font-size:14px;padding:10px 12px}.lesson{height:100vh;height:100dvh;display:grid;grid-template-rows:auto minmax(0,1fr) auto;overflow:hidden}.stage{display:grid;grid-template-columns:minmax(0,1fr) 210px;gap:18px;padding:18px 22px 12px;min-height:0}.canvas{border:1px solid var(--line);border-radius:var(--radius);background:white;overflow-y:auto;overflow-x:hidden;overscroll-behavior:contain;box-shadow:0 12px 30px #1c456909;scrollbar-color:#b3c5d9 transparent;scrollbar-width:thin;min-height:0}.slide{min-height:100%;padding:26px 32px 20px;display:flex;flex-direction:column;font-size:var(--body)}.slide-meta{display:flex;justify-content:space-between;gap:10px;align-items:center}.slide-meta>span:last-child{color:var(--muted);font-size:14px;white-space:nowrap}.slide-body{display:flex;flex-direction:column;gap:16px;flex:1;justify-content:center}.source-note{font-size:12px;color:#607086;margin:17px 0 0;padding-top:10px;border-top:1px solid #edf0f4;line-height:1.4;letter-spacing:0}.rail{display:flex;flex-direction:column;gap:10px;min-height:0;overflow:auto}.qr-card{padding:14px 12px;background:white;border:1px solid var(--line);border-radius:20px;text-align:center;display:flex;align-items:stretch;flex-direction:column;gap:8px}.qr-card>.pill{align-self:center}.qr-card>strong{font-size:16px}.qr-card small{font-size:12px;line-height:1.5;color:var(--muted)}.qr-card>.btn{min-height:44px;font-size:14px;padding:10px 8px}.qr-touch{display:block;border:0;padding:0;background:white;border-radius:12px}.qr-touch img{display:block;width:100%;height:auto;object-fit:contain}.qr-card .qr-touch{width:170px;max-width:100%;align-self:center}.rail-note{font-size:12px;text-align:center;color:var(--muted);line-height:1.55}.nav-footer{background:#fcfdfff5;padding:8px 22px 12px;z-index:5;border-top:1px solid #e0e8f1}.progress{height:4px;background:#dce5f1;border-radius:20px;overflow:hidden;margin-bottom:9px}.progress>span{display:block;height:100%;width:5.263%;background:linear-gradient(90deg,var(--purple),var(--teal));transition:width .15s}.nav-row{display:flex;align-items:center;gap:12px}.nav-row>.btn{min-height:52px;font-size:18px}.nav-row #next{margin-left:auto;min-width:150px}.nav-row #prev{min-width:132px}.counter{display:flex;gap:9px;align-items:center;margin-left:auto}.counter strong{white-space:nowrap;font-size:17px}.counter span{font-size:13px;color:var(--muted)}.scroll-hint{font-size:12px;font-weight:750;color:var(--teal)}.grid{display:grid;gap:14px}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.tile{background:#f6f8fc;border:1px solid #e1e8f1;border-radius:18px;padding:20px;min-width:0;text-align:left;color:var(--ink);font-size:inherit}.tile p{font-size:.91em;color:var(--muted);line-height:1.35}.tile h3{font-weight:800}.tile .kicker{font-size:.57em}.tinted{background:#edebfe;border-color:#dcd6ff}.warning{background:#fff7e9;border-color:#efdbc0}.split{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:24px;align-items:center}.statement{font-size:clamp(25px,2.5vw,36px);font-weight:800;line-height:1.3;letter-spacing:-.025em}.hero-split>div>p:not(.statement){font-size:.87em;color:var(--muted);margin-top:20px}.source-card{background:var(--ink);color:white;padding:22px 24px;border-radius:20px}.source-card .kicker{color:#d4dced;letter-spacing:.03em;font-size:.6em}.source-card dl{margin:14px 0 0}.source-card dl>div{display:flex;gap:10px;align-items:center;justify-content:space-between;padding:15px 0;border-bottom:1px solid #ffffff2b}.source-card dl>div:last-child{border:0}.source-card dt{font-size:.8em;color:#c6d3e2}.source-card dd{margin:0;font-size:1.05em;font-weight:750}.ribbon{display:flex;align-items:center;justify-content:space-between;gap:12px;background:#f1f4fa;border-radius:13px;padding:14px 18px;font-size:.61em;font-weight:800;color:var(--purple)}.callout{background:#edf7f6;border:1px solid #d9ebe9;border-left:4px solid var(--teal);border-radius:12px;padding:14px 18px;font-size:.83em;line-height:1.4}.callout.warning{background:#fff7e9;border-color:#efdbc0;border-left-color:#b37914}.attendance-slide .qr-center{display:flex;flex-direction:column;gap:10px;align-items:center}.attendance-slide .qr-center .qr-touch{width:245px;max-width:100%}.date-card .big-time{font-size:clamp(38px,4vw,60px);font-weight:800;letter-spacing:-.04em;margin:12px 0}.date-card>p:not(.big-time){color:var(--muted);font-size:.8em}.glossary-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.term{background:#f3f2fe;border:1px solid #ded9fa;border-radius:16px;min-height:88px;padding:16px;display:flex;align-items:center;justify-content:space-between;gap:8px;text-align:left;font-size:.81em;font-weight:750}.term[aria-pressed=true]{background:#4c3acf;color:white;border-color:#4c3acf}.definition,.feedback{border:1px solid #d5e6e6;background:#edf7f7;border-radius:14px;padding:17px 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b{font-size:1.5em;color:var(--purple)}.step.selected{background:#e0dbff;border-color:var(--purple)}.data-list{font-size:.86em}.data-list>div{display:flex;gap:14px;justify-content:space-between;align-items:center;padding:15px 0;border-bottom:1px solid var(--line)}.data-list span{font-size:.84em;color:var(--muted);flex:0 0 42%}.data-list strong{font-size:.95em;text-align:right}.flow{display:flex;align-items:center;gap:7px;justify-content:space-between;background:#f2f0ff;border-radius:15px;padding:18px;margin-bottom:20px}.flow span{font-weight:750;font-size:.8em}.flow i{font-style:normal;color:var(--purple)}.flow.compact{margin:0;background:#edf7f6}.compare{display:grid;grid-template-columns:1fr 1fr;gap:18px}.compare .quote{font-size:1em;color:var(--ink);line-height:1.38}.word{font-size:inherit;font-weight:800;color:#9d361c;background:#ffe1d1;border:0;border-bottom:3px solid #bb472c;border-radius:5px;padding:0 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strong{display:block;margin-bottom:7px;font-size:1.08em}.resource{display:block;text-decoration:none}.resource:hover{border-color:var(--purple);background:#efedff}.resource h3{color:var(--ink)}.resource p{font-size:.79em}.resources .tile{padding:18px 22px}dialog{border:1px solid var(--line);border-radius:24px;background:white;color:var(--ink);padding:25px;width:min(92vw,960px);max-height:90vh;max-height:90dvh;overflow:auto;box-shadow:0 20px 80px #11274440;font-size:20px}dialog::backdrop{background:#10243ec2}.dialog-top{display:flex;justify-content:space-between;gap:18px;align-items:center}.dialog-top h2{font-size:26px;margin:0}.qr-dialog{text-align:center;width:min(90vw,680px)}.qr-dialog .qr-large{display:block;width:min(60vh,440px);width:min(56dvh,440px);max-width:100%;height:auto;margin:12px auto}.qr-dialog small{display:block;font-size:13px;margin-top:12px;color:var(--muted)}.index-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:22px 0}.index-grid .btn{justify-content:flex-start;text-align:left;min-height:58px;font-size:16px}.index-grid b{color:var(--purple);margin-right:5px}#toast{position:fixed;left:50%;bottom:100px;transform:translateX(-50%);z-index:40;color:white;background:#132844;box-shadow:0 10px 30px #13284435;padding:14px 20px;border-radius:13px;font-size:16px;max-width:90vw}.skip{position:absolute;top:-200px}.skip:focus{top:5px;left:10px;background:white;z-index:50;padding:12px}.noscript{position:fixed;inset:80px 20px auto;padding:20px;background:#fff5ce;z-index:100}.lesson.large-type{--body:clamp(26px,2.35vw,36px);--title:clamp(40px,3.7vw,60px)}.large-type .source-note{font-size:13px}.large-type .term{font-size:.77em}.large-type .canvas{scrollbar-width:auto}
/* Portal and companion worksheet */
.portal{font-size:19px}.portal-wrap{max-width:1240px;margin:auto;padding:25px}.portal-top{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px;color:var(--muted)}.portal-hero{padding:48px 0 28px}.portal-hero h1{font-size:clamp(44px,5.4vw,78px);line-height:1.03;letter-spacing:-.045em;margin:18px 0 24px}.portal-hero .subtitle{max-width:930px;line-height:1.4}.portal-hero .btn{font-size:19px;min-height:55px}.small-note{font-size:15px;color:var(--muted);margin-top:18px}.portal-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:20px 0 24px}.portal-card{border:1px solid var(--line);border-radius:24px;background:white;box-shadow:0 12px 28px #12345807;padding:28px;display:flex;flex-direction:column;align-items:flex-start}.portal-card h2{font-size:29px;margin:12px 0}.portal-card p{font-size:20px;color:var(--muted);margin:0 0 22px;flex:1}.portal-card .kicker{font-size:13px}.portal-card.featured{border-top:5px solid var(--purple)}.portal-download{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:32px 0}.portal-download p{font-size:17px;color:var(--muted)}.portal-download h2{font-size:26px}.portal-bottom{padding:28px 0 15px;border-top:1px solid var(--line);font-size:14px;color:var(--muted);line-height:1.65}.companion{font-size:20px}.companion .page-wrap{max-width:1120px;margin:auto;padding:24px}.companion .page-top{display:flex;gap:10px;align-items:center;justify-content:space-between;flex-wrap:wrap}.companion h1{font-size:clamp(32px,4vw,52px);margin-top:24px}.companion .subtitle{font-size:23px}.form-section{background:white;border:1px solid var(--line);border-radius:22px;padding:28px;margin:22px 0;scroll-margin-top:20px}.form-section h2{font-size:29px;margin:0 0 18px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.form-grid .full{grid-column:1/-1}.form-grid label{font-size:17px;font-weight:750;display:flex;flex-direction:column;gap:8px}.form-grid label small{font-weight:450;color:var(--muted);font-size:14px;line-height:1.45}.form-grid input,.form-grid textarea,.form-grid select{width:100%;border:1px solid #b3c5d8;background:#fcfdff;border-radius:10px;padding:12px;font-size:19px;color:var(--ink);min-height:49px}.form-grid textarea{min-height:110px;resize:vertical;line-height:1.5}.form-nav{display:flex;gap:10px;flex-wrap:wrap}.save-status{font-size:15px;color:var(--teal);line-height:1.5}.note{font-size:16px;color:var(--muted);line-height:1.55}.form-actions{display:flex;gap:12px;flex-wrap:wrap}.btn.danger{background:#fff0ec;color:#942b15;border-color:#f1d1c7}.file-button{cursor:pointer}.checklist{display:grid;gap:10px;margin:15px 0}.checklist label{padding:12px;border:1px solid var(--line);border-radius:10px;display:flex;gap:12px;align-items:center;font-size:18px}.checklist input{width:23px;height:23px;accent-color:var(--teal)}.guide-list{display:grid;gap:15px}.guide-list article{padding:22px;background:white;border:1px solid var(--line);border-radius:18px}.guide-list h2{font-size:25px}.guide-list p{font-size:21px}.source-links{overflow-wrap:anywhere}
@media(min-width:1600px){.stage{grid-template-columns:minmax(0,1fr) 260px;gap:24px;padding:22px 32px 15px}.slide{padding:32px 44px 25px}.qr-card .qr-touch{width:220px}.qr-card{padding:20px 16px}.rail .btn{font-size:18px;min-height:52px}.rail-note{font-size:14px}.topbar{padding:15px 32px}.brand strong{font-size:22px}.brand small{font-size:16px}.toolbar .btn{font-size:17px}.nav-footer{padding:10px 32px 16px}.nav-row .btn{min-height:58px;font-size:21px}.tile{padding:28px}.source-note{font-size:14px}.slide-body{gap:22px}.subtitle{margin-bottom:24px}.cover h1{font-size:64px}.statement{font-size:42px}}
@media(max-height:740px) and (min-width:900px){:root{--body:clamp(21px,1.82vw,26px);--title:clamp(31px,3vw,43px)}.stage{gap:12px;padding:12px 16px 8px;grid-template-columns:minmax(0,1fr) 184px}.slide{padding:19px 24px 14px}.slide-body{gap:12px}.subtitle{margin-bottom:14px}.tile{padding:16px}.qr-card{padding:10px;gap:6px}.qr-card .qr-touch{width:137px}.qr-card small{font-size:11px}.qr-card .btn{min-height:38px;font-size:12px}.rail>.btn{min-height:41px;font-size:14px}.rail-note{font-size:11px;margin:2px}.source-note{font-size:11px;margin-top:12px;padding-top:7px}.term{min-height:70px}.topbar{padding:7px 16px}.badge{height:44px}.nav-footer{padding:7px 16px 9px}.nav-row>.btn{min-height:47px}.attendance-slide .qr-center .qr-touch{width:190px}.flow{margin-bottom:14px}.data-list>div{padding:11px 0}.cover h1{font-size:40px}.cover .statement{font-size:29px}.source-card{padding:18px}.source-card dl>div{padding:12px 0}.ribbon{padding:10px 14px}}
@media(max-width:1100px) and (min-width:900px){.brand strong{font-size:14px}.brand small{font-size:12px}.toolbar .btn{font-size:12px;padding:10px 9px}.counter span{display:none}.glossary-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.term{padding:12px;font-size:.72em}.source-card dd{font-size:.9em}.doc-flow{gap:8px}.doc-flow>div{padding:15px 12px}}
@media(max-width:899px){:root{--body:23px;--title:37px}.lesson{display:block;height:auto;min-height:100dvh;overflow:auto}.topbar{position:relative;display:block;padding:12px 16px}.brand{margin-bottom:12px}.brand strong{font-size:17px}.toolbar{justify-content:flex-start}.toolbar .btn{flex:1;font-size:13px;padding:10px 8px}.stage{display:flex;flex-direction:column-reverse;gap:12px;padding:14px 16px}.canvas{overflow:visible;min-height:500px}.slide{padding:22px}.slide-body{gap:15px}.source-note{margin-top:24px}.rail{overflow:visible;display:grid;grid-template-columns:1fr 1fr;gap:9px}.qr-card{grid-column:1/-1;display:grid;grid-template-columns:82px minmax(0,1fr) 110px;grid-template-rows:auto auto auto;align-items:center;padding:12px;gap:4px 10px;border-radius:16px;text-align:left}.qr-card .qr-touch{grid-column:1;grid-row:1/4;width:82px}.qr-card .pill{grid-column:2;grid-row:1;justify-self:start;font-size:10px;padding:4px 8px}.qr-card>strong{grid-column:2;grid-row:2;font-size:14px}.qr-card>small{grid-column:2;grid-row:3;font-size:11px}.qr-card>.btn:nth-last-child(2){grid-column:3;grid-row:1/3;min-height:40px;font-size:12px}.qr-card>.btn:last-child{grid-column:3;grid-row:3;font-size:11px;min-height:38px}.rail-note{display:none}.rail>.btn{font-size:14px;min-height:44px}.nav-footer{position:sticky;bottom:0;padding:8px 16px 10px}.counter{margin:0 auto;display:block;text-align:center}.counter span{display:none}.nav-row{gap:8px}.nav-row>.btn{font-size:15px;padding:11px;min-height:48px}.nav-row #prev,.nav-row #next{min-width:0;margin:0;flex:1}.counter strong{font-size:14px}.scroll-hint{display:none!important}.glossary-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.term{min-height:75px;font-size:20px}.grid.three{grid-template-columns:1fr}.grid.two{grid-template-columns:1fr 1fr}.tile{padding:18px}.split{gap:18px}.statement{font-size:30px}.cover h1{font-size:39px}.hero-split{grid-template-columns:1fr}.source-card dl>div{padding:12px 0}.source-card{padding:20px}.ribbon{font-size:14px;padding:12px;gap:5px}.choices{grid-template-columns:1fr}.choice{min-height:57px;font-size:19px}.steps{gap:8px}.step{font-size:18px;min-height:108px;padding:10px}.doc-flow{grid-template-columns:1fr 1fr}.flow{flex-wrap:wrap;gap:10px;justify-content:flex-start}.flow span{font-size:19px}.peer-list{grid-template-columns:1fr}.portal-hero{padding-top:35px}.portal-cards{grid-template-columns:1fr}.portal-download{display:block}.portal-download .btn{margin-top:12px}.index-grid{grid-template-columns:1fr 1fr}.lesson.large-type{--body:27px;--title:42px}.qr-dialog .dialog-top{align-items:flex-start}.qr-dialog .dialog-top h2{font-size:22px}}
@media(max-width:550px){:root{--body:21px;--title:31px}.stage{padding:10px}.slide{padding:18px}.slide-meta{align-items:flex-start}.slide-meta .eyebrow{font-size:11px}.slide-meta>span:last-child{font-size:11px}.slide h1{font-size:32px}.subtitle{font-size:21px}.grid.two,.compare,.split{grid-template-columns:1fr}.glossary-grid{gap:8px}.term{font-size:18px}.definition{font-size:19px;padding:14px}.tile p{font-size:19px}.tile h3{font-size:22px}.tile .kicker{font-size:12px}.nav-footer{padding:7px 10px 10px}.nav-row{gap:5px}.nav-row>.btn{font-size:13px;padding:10px 8px}.counter strong{font-size:12px}.steps{grid-template-columns:1fr}.step{min-height:65px;flex-direction:row;justify-content:flex-start;gap:18px}.attendance-slide .qr-center .qr-touch{width:230px}.source-card dd{font-size:24px}.source-card dt{font-size:20px}.ribbon{font-size:11px}.form-grid{grid-template-columns:1fr}.form-grid .full{grid-column:auto}.companion .page-wrap{padding:14px}.form-section{padding:20px}.companion .subtitle{font-size:21px}.form-section h2{font-size:25px}.page-top .btn{font-size:13px}.portal-wrap{padding:18px}.portal-top{flex-wrap:wrap}.portal-top .btn{font-size:13px}.portal-hero h1{font-size:44px}.portal-hero .btn{font-size:16px}.portal-card{padding:22px}.portal-card h2{font-size:26px}.portal-card p{font-size:19px}.index-grid{grid-template-columns:1fr}.dialog-top h2{font-size:23px}dialog{padding:20px}.small-note{font-size:13px}.source-note{font-size:11px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}
@media print{body{background:white!important;color:#111!important}.lesson{display:block;height:auto;overflow:visible}.topbar,.rail,.nav-footer,dialog,#toast,.skip,.actions,.toolbar,.page-top,.form-nav,.form-actions,.save-status{display:none!important}.stage{display:block;padding:0}.canvas{overflow:visible;border:0;box-shadow:none}.slide[hidden]{display:flex!important}.slide{min-height:0;page-break-after:always;padding:15mm;font-size:17px}.slide h1{font-size:28px}.slide .subtitle{font-size:21px}.source-note{font-size:10px}.form-section{break-inside:avoid}.companion .page-wrap{max-width:none;padding:0}.form-grid textarea{min-height:60px}a{color:#111} }
/* Tablet landscape: fit the original 19-screen sequence without shrinking the core text. */
@media(min-width:900px) and (max-width:1599px){
 .slide{padding-top:22px;padding-bottom:18px}.subtitle{margin-bottom:16px}.slide-body{gap:14px}.tile{padding:18px}.tile h3{margin:6px 0}.tile p{margin:.25em 0 0}.source-note{margin-top:13px;padding-top:8px}
 #p11 .grid.two,#p18 .grid.two{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
 #p11 .tile,#p18 .tile{padding:16px}#p11 .tile h3,#p18 .tile h3{font-size:.98em}
 #p11 .tile p,#p18 .tile p{font-size:.88em}
}
@media(min-width:900px) and (max-height:740px){.slide{padding:18px 22px 12px}.tile{padding:14px}.tile p{margin:.2em 0 0}.slide-body{gap:12px}.subtitle{margin-bottom:12px}.source-note{margin-top:10px;padding-top:6px}}