.practice-main{max-width:1400px;margin:auto;padding:32px}.practice-main h1{font-size:28px}.practice-intro{color:#70788b;margin:8px 0 25px}.practice-progress{list-style:none;display:flex;padding:0;gap:28px;margin:0 0 28px;color:#8990a0;flex-wrap:wrap}.practice-progress li{display:flex;gap:10px;align-items:center;font-size:14px}.practice-progress b{border:1px solid #dddce9;width:29px;height:29px;display:grid;place-items:center;border-radius:50%;font-weight:500}.practice-progress [aria-current]{color:#674ba5}.practice-progress [aria-current] b{background:#7355bb;color:white;border-color:#7355bb}#practice-root h2{margin:18px 0;font-size:21px}.topic-choices,.practice-formulas{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:15px;margin-bottom:24px}.topic-choices button,.practice-formulas button{background:#fff;border:1px solid #e0ddeb;border-radius:12px;padding:25px;text-align:left;color:#34384c}.topic-choices button:hover,.practice-formulas button:hover,.practice-formulas button[aria-pressed=true]{border-color:#8b71bb;background:#f3effa}.topic-choices b{display:block;font-size:20px}.topic-choices small{display:block;color:#858294;margin-top:8px}.practice-formulas strong{display:block;margin-bottom:14px;font-size:16px}.practice-formulas math{font-size:22px;max-width:100%;overflow:auto;color:#6d5096}.primary-practice{padding:13px 22px;background:#7051b8;color:white;border-radius:7px;min-height:46px;font-size:15px}.primary-practice:disabled{opacity:.4;cursor:not-allowed}.practice-round-heading{display:flex;justify-content:space-between;gap:15px;align-items:center}.practice-round-heading>div>span{font-size:13px;letter-spacing:.1em;color:#87789b}.answer-workspace,.comparison-workspace{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;align-items:start}.question-card,#answer-form,.solution-card,.submitted-card{padding:28px;border:1px solid #e1ddea;border-radius:14px;background:#fff;min-width:0}.question-card h4,.worked-steps h4{font-size:14px;color:#695082;margin:20px 0 12px}.practice-context,.worked-steps p{font-size:16px;line-height:1.9}.given-grid{display:flex;flex-wrap:wrap;gap:10px}.given-grid>span{display:flex;align-items:center;gap:10px;background:#f6f5fa;padding:8px 12px;border-radius:6px;max-width:100%;overflow:auto}.given-grid math{font-size:18px}.given-grid small{font-size:12px;color:#768090;white-space:nowrap}.find-value{padding-top:18px;font-size:17px;color:#63468e}.find-value math{font-size:22px}.practice-reference{display:block;margin-top:30px;color:#81669e;font-size:14px}#answer-form label{display:block;margin:0 0 10px;color:#554965}#answer-form textarea,#answer-form input{display:block;width:100%;border:1px solid #d9d5e4;border-radius:7px;padding:13px;background:#faf9fd;color:#363444;font-size:16px;line-height:1.8;margin-bottom:20px}#answer-form textarea{resize:vertical;min-height:190px}.practice-error{color:#a54052;font-size:14px}.practice-hint{font-size:13px;line-height:1.7;color:#858095;margin-top:15px}.worked-steps{padding-left:25px}.worked-steps>li{padding:0 0 22px 8px;border-bottom:1px solid #eeebf2;margin-bottom:18px}.worked-steps>li::marker{color:#8a69b1}.worked-steps .textbook-math{max-width:100%;overflow:auto;font-size:23px;padding:8px 0}.worked-steps .step-note{font-size:13px;color:#837c8b}.answer-equation{margin-top:14px;background:#f1edf9;padding:12px;border-radius:8px}.solution-card>h3,.submitted-card>h3{font-size:20px;margin:0 0 20px}.submitted-card{background:#faf9fd;position:sticky;top:15px}.submitted-card pre{white-space:pre-wrap;overflow-wrap:anywhere;font-family:inherit;font-size:16px;line-height:1.9;border-top:1px solid #e5e1ed;padding-top:20px}.submitted-answer{font-size:22px;color:#674c8f;overflow-wrap:anywhere}.grade{background:#f7e8e8;padding:12px;border-radius:6px;margin-top:20px;font-size:14px;color:#864b56}.grade.correct{background:#e4f1e9;color:#386549}.practice-next{display:flex;align-items:center;justify-content:flex-end;gap:20px;padding:26px 0;flex-wrap:wrap}.guided-examples{margin-top:28px;border-top:1px solid #e7e1ed;padding-top:24px}.guided-example{border:1px solid #e3dcea;border-radius:9px;margin:12px 0;padding:16px}.guided-example summary{cursor:pointer;font-size:16px;color:#694d8b}.guided-example .worked-steps{margin-top:20px}.guided-example .primary-practice{margin:0 0 5px}.guided-link{display:inline-block;margin-top:12px;color:#7055a4}
@media(max-width:800px){.practice-main{padding:24px 17px}.answer-workspace,.comparison-workspace{grid-template-columns:1fr}.submitted-card{position:static}.practice-progress{gap:14px}.question-card,#answer-form,.solution-card,.submitted-card{padding:20px}.practice-main h1{font-size:24px}.worked-steps .textbook-math{font-size:20px}}

.primary-practice:focus-visible,.practice-formulas button:focus-visible,.topic-choices button:focus-visible{outline:3px solid #b6a1d9;outline-offset:3px}.given-grid small{font-size:13px}.practice-formulas button,.topic-choices button{cursor:pointer;min-width:0}.primary-practice{border:0;cursor:pointer}