.quick-check{min-width:0}.quick-check fieldset{border:0;padding:0;margin:16px 0}.quick-check legend{font-weight:700;margin-bottom:8px}.check-choice{display:flex;align-items:flex-start;gap:12px;padding:13px 12px;margin:8px 0;border:1px solid #c7dbd6;border-radius:10px;background:white;cursor:pointer;min-height:44px;overflow-wrap:anywhere}.check-choice input{flex:none;margin:5px 0 0;width:18px;height:18px;accent-color:#3157d5}.quick-check button{padding:12px 20px;min-height:44px;border:0;border-radius:10px;background:#3157d5;color:white;font:inherit;font-weight:700;cursor:pointer}.quick-check :focus-visible{outline:3px solid #e1a13b;outline-offset:3px}.check-feedback{font-weight:700}.check-feedback[data-result="correct"]{color:#166c53}.check-feedback[data-result="incorrect"]{color:#9a4220}.guide-page [hidden]{display:none!important}.math-problem{white-space:pre-wrap;overflow-wrap:anywhere}.math-table{border-collapse:collapse;width:100%;max-width:440px;margin:18px 0}.math-table td,.math-table th{padding:8px 12px;border:1px solid #ced8e8;text-align:center}.math-table caption{text-align:left;font-weight:600;padding-bottom:8px}.math-plot{display:block;width:100%;max-width:340px;margin:16px 0}.math-diagram{font-size:clamp(6px,1.65vw,11px);line-height:1.6;white-space:pre;max-width:100%;margin:14px 0;color:#243750}.guide-page li,.guide-page p{overflow-wrap:anywhere}.hub-skill-list .hub-skill{display:grid}.guide-related a{min-height:44px;align-items:center}.guide-app-cta strong{color:#243750}