@font-face{font-family:Jakarta;src:url('/assets/fonts/plus-jakarta-sans-latin-600-normal.woff2') format('woff2');font-weight:600;font-display:swap}
@font-face{font-family:Jakarta;src:url('/assets/fonts/plus-jakarta-sans-latin-700-normal.woff2') format('woff2');font-weight:700;font-display:swap}
@font-face{font-family:Jakarta;src:url('/assets/fonts/plus-jakarta-sans-latin-800-normal.woff2') format('woff2');font-weight:800;font-display:swap}
@font-face{font-family:Atkinson;src:url('/assets/fonts/atkinson-hyperlegible-latin-400-normal.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:Atkinson;src:url('/assets/fonts/atkinson-hyperlegible-latin-700-normal.woff2') format('woff2');font-weight:700;font-display:swap}
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@media(min-width:1600px){.container{padding-inline:64px}}
@media(max-width:1350px){.container{padding-inline:48px}.header nav{gap:28px;font-size:20px}.brand{font-size:30px;gap:10px}.hero-grid{gap:40px;min-height:730px}.hero-description{font-size:26px;margin-top:32px}.hero-actions{gap:20px;margin-top:34px}.hero-actions .button{font-size:18px;padding:18px 22px;min-height:64px}.hero-actions .text-link{font-size:20px;gap:10px}.hero-note{font-size:20px}.practice-frame{padding:28px}.practice{padding:24px;min-height:600px}.practice h2{font-size:28px}.practice-question,.answers button{font-size:21px}.subject-rail{font-size:20px}.steps>li{padding-inline:28px}.steps h3{font-size:23px}.steps li>p{font-size:22px}.step-preview{padding:18px}.file-row{padding-inline:12px;gap:12px}.file-row strong{font-size:17px}.family-grid{gap:64px}.section-intro>p{font-size:24px}.questions h2{font-size:38px}}
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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}

@media(min-width:1051px){.how{padding-top:88px}.section-intro h2{font-size:clamp(52px,4.43vw,68px);line-height:1.12}.steps h3{font-size:clamp(24px,1.95vw,30px);letter-spacing:-.025em}.families{padding-block:88px}.family-grid h2{font-size:clamp(46px,3.9vw,60px)}.family-grid>div>p{font-size:24px;max-width:none}.family-list>li:first-child{border-top:0}.family-list>li:last-child{border-bottom:0}.family-list .icon{width:48px;height:48px;padding:12px;border-radius:50%;background:var(--pale)}.questions{padding-block:52px}.questions-grid{grid-template-columns:1fr 1fr;align-items:center;gap:72px}.questions h2{font-size:clamp(38px,3.4vw,52px)}.faq-list details:first-child{border-top:0}summary{font:400 24px/1.5 Atkinson,Arial,sans-serif;letter-spacing:0}.closing{padding-block:44px}footer{padding-block:28px}}

.subject-choice{padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:18px}.subject-choice label{display:block;font:600 18px/1.4 Jakarta,Arial,sans-serif;margin-bottom:10px;color:var(--ink)}.subject-choice select{display:block;width:100%;min-height:54px;padding:12px 16px;border:1px solid #a4b3c9;border-radius:8px;background:white;color:var(--ink);font:600 19px/1.4 Jakarta,Arial,sans-serif;cursor:pointer}.subject-choice select:focus-visible{outline:3px solid var(--blue);outline-offset:4px}.subject-rail>p{flex:0 0 230px}.subject-rail ul{max-width:960px;gap:14px 28px}@media(max-width:1050px){.subject-choice select{font-size:18px}.subject-rail>p{flex-basis:190px}}@media(max-width:800px){.subject-rail>p{flex-basis:auto}.subject-rail ul{justify-content:flex-start}}@media(max-width:520px){.subject-choice{padding-bottom:18px}.subject-choice label{font-size:16px}.subject-choice select{font-size:17px;min-height:50px}.subject-rail ul{gap:12px 22px}}

/* Starter-lesson catalog mirrors the homepage JSON-LD. */
.starter-lessons{margin:0 0 24px}.starter-lessons>div{padding:20px 0;border-top:1px solid var(--line);display:grid;grid-template-columns:minmax(100px,.8fr) minmax(0,1.7fr);gap:12px 24px}.starter-lessons dt{font:700 17px/1.5 Jakarta,Arial,sans-serif;color:var(--blue)}.starter-lessons dd{margin:0;font-size:20px;line-height:1.45}.starter-lessons dd strong{display:block;font-weight:700}.starter-lessons dd span{display:block;margin-top:6px;color:#4b5d7b;font-size:18px}.questions-grid:has(#starter-lessons[open]){align-items:start}@media(max-width:520px){.starter-lessons>div{grid-template-columns:1fr;gap:6px}.starter-lessons dd{font-size:20px}}