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.welcome{background:#eaf0f8;border-radius:24px}.welcome-copy{padding:44px 36px}.welcome h1{font-family:Arial,Helvetica,sans-serif;font-weight:800;letter-spacing:-2px}.welcome-image{min-height:420px}.image-note p{font-family:Arial,Helvetica,sans-serif;font-weight:700}.button{border-radius:12px}.course-strip-title h2{font-family:Arial,Helvetica,sans-serif;font-weight:700}.module-card{border-top:4px solid #e7be63}.module-card:nth-child(3n+2){border-top-color:#79baa9}.module-card:nth-child(3n){border-top-color:#a3b4d9}.module-number{background:#fff0cc;border-radius:14px;padding:8px;align-self:flex-start}.module-body h3{font-family:Arial,Helvetica,sans-serif;font-weight:700}.age-intro{margin:52px 0 28px}.age-intro h2{font:700 30px/1.2 Arial,Helvetica,sans-serif}.age-intro>div>p{max-width:650px;color:#5c6f7c}.age-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin:24px 0}.age-cards article{background:#fff;border:1px solid #dde5e9;border-radius:18px;overflow:hidden}.age-cards img{width:100%;height:180px;object-fit:cover}.age-cards h3{font-size:17px;margin:20px 20px 10px}.age-cards p{font-size:13px;line-height:1.7;margin:0 20px 22px;color:#536576}.education-note{font-size:12px;background:#eef3f8;padding:16px 20px;border-radius:10px}.age-picker{display:flex;flex-wrap:wrap;gap:12px;align-items:center;padding:18px;background:#eef2f8;border:1px solid #d7dfed;border-radius:14px;margin-bottom:26px}.age-picker label{font-size:12px;font-weight:700}.age-picker select{max-width:100%;min-height:44px;border:1px solid #7189a7;border-radius:8px;padding:8px;background:white;color:#223b64;font:inherit}.age-picker button{font-size:11px;padding:8px 12px}.lesson-content p{margin-bottom:18px;line-height:1.85}.skill-label{font-size:11px;font-weight:700;letter-spacing:1.7px;color:#546f94}.age-stories{margin:28px 0;border-left:5px solid #6e9acb;border-radius:12px;background:#edf4fc;padding:24px}.age-stories section[hidden]{display:none!important}.age-stories h2,.practice-card h2{font:700 21px/1.4 Arial,Helvetica,sans-serif;margin:0 0 18px}.practice-card{background:#fff2d5;border-radius:14px;padding:25px;margin-top:26px}.practice-card p:last-child,.age-stories p:last-child{margin-bottom:0}.practice-feedback{background:#edf6f0;border-radius:10px;padding:16px;margin-top:16px;font-size:14px;line-height:1.7}.practice-feedback:empty{display:none}.practice-feedback.try-again{background:#fff2d5}.check-answer{margin-top:12px}.site-header .brand>span{max-width:170px}.reader-sidebar h2{font-family:Arial,Helvetica,sans-serif;font-weight:700}.lesson-title-row h1{font-family:Arial,Helvetica,sans-serif;font-weight:750;letter-spacing:-1.2px}.lesson-content{font-size:16px}.reader-main{max-width:940px}.checkpoint legend{font-size:17px}.answer-option{font-size:15px}.reader-bottom{line-height:1.6}.site-footer a{max-width:65%}
@media(max-width:720px){.welcome-copy{padding:30px 24px}.welcome h1{font-size:42px}.welcome-image{min-height:260px}.age-cards{grid-template-columns:1fr}.age-cards article{display:grid;grid-template-columns:110px 1fr}.age-cards img{grid-row:span 2;height:100%;min-height:145px}.age-cards h3{margin:16px 16px 8px;font-size:16px}.age-cards p{margin:0 16px 16px;font-size:12px}.age-intro{margin-top:34px}.age-intro h2{font-size:26px}.age-picker{padding:15px;display:grid;grid-template-columns:1fr}.age-picker select{width:100%}.age-stories,.practice-card{padding:20px}.lesson-title-row h1{font-size:31px}.lesson-content{font-size:16px}.site-header nav{gap:12px}}
@media print{body>*{display:block!important}body>dialog:not([open]){display:none!important}.site-header,.reader-sidebar,.reader-top,.lesson-actions,.reader-bottom,.age-picker,.checkpoint,.lesson-end,.site-footer,.preview-bar{display:none!important}.reader-layout{display:block!important}.reader-main{padding:0;max-width:none}.lesson-content{font-size:12pt}.age-stories,.practice-card{break-inside:avoid;border:1px solid #aaa}.lesson-title-row h1{font-size:24pt}body:has(dialog[open])>*{display:none!important}body:has(dialog[open])>dialog[open]{display:block!important}}

.course-brand{font:700 15px/1.5 Arial,Helvetica,sans-serif;color:#315c80;margin-bottom:14px}.welcome h1{font-size:44px;letter-spacing:-1.8px}.landing-benefits{margin:42px 0;padding:30px;border:1px solid #dbe3ec;border-radius:18px;background:#fff}.landing-benefits h2,.landing-faq h2{font:700 28px/1.3 Arial,Helvetica,sans-serif;max-width:760px}.landing-benefits>p:not(.eyebrow){max-width:780px;font-size:15px;color:#526675}.landing-benefits ul{display:grid;grid-template-columns:1fr 1fr;gap:14px 35px;margin-bottom:0;padding-left:22px;font-size:14px}.landing-faq{margin:40px 0}.landing-faq details{padding:18px 0;border-bottom:1px solid #d7e0e9}.landing-faq summary{font-size:16px;font-weight:700;color:#223b64}.landing-faq details p{font-size:14px;line-height:1.85;max-width:900px;margin:15px 0 0;color:#4f6575}@media(max-width:720px){.welcome h1{font-size:35px;letter-spacing:-1.2px}.landing-benefits{padding:22px;margin:30px 0}.landing-benefits h2,.landing-faq h2{font-size:24px}.landing-benefits ul{grid-template-columns:1fr}.landing-faq summary{font-size:15px}}