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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}

/* Short orientation before learners enter the question bank. */
.practice-guide{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-top:14px;padding:15px 18px;border:1px solid #dfe9df;border-radius:15px;background:#edf5ed}.practice-guide>div{min-width:0}.practice-guide b{color:#2b604d;font-size:13px}.practice-guide p{margin:4px 0 0;color:#5f746a;font-size:11px;line-height:1.7}.practice-guide>a{flex:0 0 auto;padding:9px 12px;border-radius:999px;background:#fff;color:#33715e;font-size:10px;font-weight:900;text-decoration:none}.practice-guide>a:hover{background:#e0eee3}.practice-guide>a span{margin-left:6px}@media(max-width:600px){.practice-guide{align-items:flex-start;flex-direction:column;gap:10px;margin-top:9px;padding:13px}.practice-guide b{font-size:12px}.practice-guide p{font-size:10px}.practice-guide>a{font-size:10px}}

/* Shared display style for formulas in all 192 question prompts and answer records. */
.qbank-rich-math{display:block;width:fit-content;max-width:100%;margin:.4em 0;padding:.32em .65em;border-left:4px solid #6f9e82;border-radius:0 9px 9px 0;background:#edf5ec;color:#315846;font-size:clamp(1.02rem,1.7vw,1.2rem);font-weight:900;line-height:1.8;overflow-wrap:anywhere;font-variant-numeric:lining-nums tabular-nums}
.qbank-rich-prose{color:inherit}
.question-text .qbank-rich-math{background:#eef3e8;color:#334b42}
.answer-block p .qbank-rich-math{background:#f3f8f0}
@media(max-width:650px){.question-text .qbank-rich-math,.answer-block p .qbank-rich-math,.review-body .qbank-rich-math{font-size:1.02rem;line-height:1.85;padding:.3em .52em}}
.review-details .qbank-rich-math,.review-details li .qbank-rich-math{font-size:1.02rem;line-height:1.8}


/* Safe, child-readable math notation rendered from allowlisted source forms. */
.qbank-overline{display:inline-block;padding-top:.04em;white-space:nowrap;text-decoration-line:overline;text-decoration-thickness:.09em;text-decoration-skip-ink:none;text-decoration-color:currentColor}
.qbank-fraction{display:inline-grid;grid-template-rows:auto 2px auto;place-items:center;max-width:100%;margin-inline:.12em;padding:.06em .1em;vertical-align:middle;line-height:1.15;white-space:nowrap;font-size:.9em;font-variant-numeric:lining-nums tabular-nums}
.qbank-fraction-part{max-width:100%;padding-inline:.1em;text-align:center;line-height:1.15;white-space:nowrap}
.qbank-fraction-bar{width:100%;min-width:1.25em;border-top:1px solid currentColor}
.qbank-subscript{font-size:.72em;line-height:0;vertical-align:sub}
.qbank-indexed-power>sup{font-size:.76em;line-height:0;vertical-align:super}
.qbank-math-note{display:block;max-width:100%;margin:.3em 0 .1em;padding:.42em .62em;border-left:2px solid #99bca0;border-radius:0 7px 7px 0;background:#f5f8ee;color:#617665;font-size:.76em;font-weight:700;line-height:1.65;overflow-wrap:anywhere}
@media(max-width:400px){.qbank-math-note{padding:.38em .54em;font-size:.71em}.qbank-fraction{margin-inline:.06em}}