:root{font-family:'Segoe UI',system-ui,sans-serif;color:#342e4c;background:#f7f5ef}*{box-sizing:border-box}body{margin:0}header{max-width:1180px;margin:auto;display:flex;justify-content:space-between;align-items:center;gap:18px;padding:25px}a{color:#6953ad}header a{text-decoration:none}.brand{font-size:24px;font-weight:800;color:#413361}.brand small{display:block;font-size:12px;font-weight:500;margin-top:3px;color:#82778e}nav{display:flex;align-items:center;flex-wrap:wrap;gap:12px}nav a{font-size:13px}button,select{font:inherit;color:inherit;border:1px solid #e0dce9;background:white;border-radius:14px;padding:12px 18px;cursor:pointer;font-weight:650}button:hover{background:#f0ebfa}button:disabled{opacity:.55;cursor:default}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:4px solid #e0ad49;outline-offset:4px}[hidden]{display:none!important}main{max-width:1110px;padding:12px 25px;margin:auto}.hero{display:grid;grid-template-columns:1.3fr 1fr;align-items:center;gap:25px;margin:15px 0 35px}h1{font-size:clamp(34px,5vw,57px);line-height:1.12;letter-spacing:-1.7px;margin:16px 0}p{line-height:1.7;color:#797084;font-size:17px}.eyebrow{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:2px;color:#8b72b4}.art{border-radius:40px;background:#e9e2f1;min-height:235px;display:flex;align-items:center;justify-content:center;gap:15px;transform:rotate(-3deg)}.art span{font-size:62px;background:#fff9;padding:14px;border-radius:25px}.art span:nth-child(2){transform:translateY(-20px)}.modules{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.module{border:1px solid #e1dce9;border-radius:24px;background:#fff;padding:25px;text-align:left;display:flex;flex-direction:column;align-items:start;min-height:245px;box-shadow:0 5px 16px #42324c04}.module:hover{transform:translateY(-3px);background:#fff;box-shadow:0 9px 22px #42324c10}.module 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0}.answers button{font-size:25px;padding:18px;background:#faf8fd;min-height:65px}.answers .wrong{background:#fff0d7;border-color:#dcb361}.answers .right{background:#e0f0d8;border-color:#81af68}.feedback{min-height:58px;line-height:1.65;font-weight:650;margin:12px 0}.actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.muted{font-size:14px;color:#8b8195}.hint{background:#f5f0e1;padding:16px;border-radius:15px;text-align:left;line-height:1.7;margin:15px 0}.prompt{font-size:48px;font-weight:750;letter-spacing:2px;margin:25px 0}.syllables{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin:25px 0}.syllables button{font-size:32px;background:#f1eafa;border:0;padding:16px 22px}.sentence{font-size:27px;line-height:1.8}.clock{width:245px;height:245px;display:block;margin:20px auto}.clock text{font-family:system-ui;font-size:17px;fill:#4e4461}.legend{font-size:14px;color:#82758d}.fractions{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin:25px auto;max-width:450px}.piece{width:65px;height:65px;background:#f3eff8;border:2px solid #d6c7eb;border-radius:10px;padding:0}.piece.selected{background:#a48bd1;border-color:#7554a9}.fraction-model{width:280px;display:flex;margin:25px auto;border:3px solid #8c70b5;border-radius:10px;overflow:hidden;height:72px}.fraction-model span{flex:1;border-right:2px solid #8c70b5;background:#f3eff8}.fraction-model span:last-child{border:0}.fraction-model .filled{background:#aa8ed6}.settings label{display:block;margin:16px 0}.badge-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.badge{text-align:center}.badge span{font-size:46px}.dim{filter:grayscale(1);opacity:.5}.lab{background:#f2edf8;border-radius:15px;padding:18px;margin:20px 0}input[type=range]{width:90%;accent-color:#7053ab}.summary{font-size:55px}footer{text-align:center;color:#9a90a1;font-size:12px;padding:35px 20px}.danger{color:#a54555;margin-top:15px}@media(max-width:760px){header{flex-direction:column;align-items:start;padding:20px}nav{gap:8px}nav button{font-size:12px;padding:10px}.hero{grid-template-columns:1fr}.art{min-height:150px;transform:none}.art span{font-size:40px}.modules{grid-template-columns:1fr 1fr}.module{padding:20px}.module h2{font-size:20px}.badge-grid{grid-template-columns:1fr 1fr}.panel{padding:20px}main{padding:0 18px}}@media(max-width:450px){.modules{grid-template-columns:1fr}.module{min-height:190px}.prompt{font-size:38px}.answers button{font-size:21px}.top{font-size:13px}.syllables button{font-size:26px;padding:13px}.piece{width:50px;height:50px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}

.fraction-theory>.card{margin:22px 0}.fraction-theory h2{line-height:1.35;font-size:23px}.fraction-theory .cake-svg{display:block;width:min(100%,310px);margin:18px auto}.cake-svg [data-cake]{cursor:pointer;transition:fill .15s}.cake-svg [data-cake]:hover{filter:brightness(.93)}.cake-svg [data-cake]:focus{outline:none;stroke:#523377;stroke-width:5}.cake-result{text-align:center;font-size:23px;font-weight:750;margin:12px 0 20px;color:#79506c}.fraction-explainer{display:flex;align-items:center;gap:24px}.written-fraction{display:flex;flex-direction:column;text-align:center;min-width:62px;font-size:43px;line-height:1.35;font-weight:750;color:#79506c}.written-fraction span:first-child{border-bottom:3px solid #79506c}.fraction-explainer p{margin:12px 0}.cake-compare{display:grid;grid-template-columns:1fr 1fr;text-align:center;gap:16px}.cake-compare .cake-svg{width:min(100%,220px)}.fraction-theory>.actions{margin:24px 0}@media(max-width:500px){.fraction-explainer{gap:15px}.fraction-explainer p{font-size:15px}.cake-result{font-size:20px}.cake-compare{gap:8px}.cake-compare b{font-size:14px}}

.reading-levels{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:25px 0}.level-card{text-align:left;padding:22px;display:flex;flex-direction:column;align-items:flex-start;gap:10px;background:white}.level-card h2{font-size:21px;margin:8px 0}.level-card p{font-size:15px;margin:0 0 10px;font-weight:400}.level-card b{margin-top:auto;color:#7053ab}.level-number{font-size:16px;font-weight:800;background:#ede5f7;color:#7053ab;padding:9px 13px;border-radius:12px}.reading-toolbar{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin:24px 0}.reading-passage{text-align:left;line-height:1.9;font-size:clamp(23px,4vw,32px);background:#faf7ee;border-radius:18px;padding:25px;margin:25px 0;white-space:pre-wrap;overflow-wrap:normal}.reading-passage.paragraph{font-size:clamp(21px,3vw,27px);line-height:2}.syllable-word{display:inline-block}.syllable-color-0{color:#58428e}.syllable-color-1{color:#a55366}.syllable-divider{color:#ab99b7;font-size:.75em;padding:0 1px}.topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:24px 0}.math-prompt{font-size:clamp(24px,4vw,35px)!important}.math-shape{display:block;margin:20px auto;max-height:175px;max-width:100%;width:260px}.math-shape text{font:17px system-ui;fill:#375b4a}.sentence-context{text-align:left;font-size:24px;background:#f3edf8;padding:20px;border-radius:16px;color:#584574}.gap-slot{color:#9776c2}@media(max-width:650px){.reading-levels{grid-template-columns:1fr}.level-card{padding:20px}.reading-passage{padding:18px}.reading-passage.paragraph{font-size:22px}.topic-grid{grid-template-columns:1fr}.sentence-context{font-size:21px}}

/* Prominent return to the main portal. */
header nav .portal-return{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:54px;padding:15px 24px;background:#7053ab;border:2px solid #7053ab;border-radius:16px;color:#fff;font-size:17px;font-weight:800;line-height:1.3;text-decoration:none;box-shadow:0 4px 0 #503a82;white-space:nowrap}header nav .portal-return:hover{background:#614499;border-color:#614499}header nav .portal-return:focus-visible{outline:4px solid #e0ad49;outline-offset:4px}@media(max-width:760px){header nav{width:100%}header nav .portal-return{width:100%;margin-top:8px;min-height:56px;font-size:18px}}