.qfrac{display:inline-flex;flex-direction:column;vertical-align:middle;text-align:center;line-height:1;min-width:1.5em;margin:0 .18em;font-family:Arial,sans-serif;direction:ltr;unicode-bidi:isolate}.qfrac>span:first-child{display:block;border-bottom:2px solid currentColor;padding:0 .2em .1em}.qfrac>span:last-child{display:block;padding:.1em .2em 0}.qsqrt{display:inline-flex;align-items:flex-start;font-family:Arial,sans-serif;font-size:1.05em;direction:ltr;unicode-bidi:isolate}.qsqrt>span{border-top:1.7px solid currentColor;padding:.03em .15em 0}.qpow{display:inline-block;direction:rtl;unicode-bidi:isolate}.qpow sup{font-size:.62em;line-height:0;vertical-align:super;margin:0 .03em}.qvisual{display:block!important;width:min(390px,92%)!important;min-height:190px;margin:18px auto 12px!important;text-align:center;clear:both}.qvisual svg{display:block!important;width:100%!important;height:auto!important;min-height:180px;max-height:250px;overflow:visible}.qstroke{fill:none;stroke:#102a55;stroke-width:3;stroke-linecap:round;stroke-linejoin:round}.qinner{stroke-width:2.5}.qshade{fill:currentColor;opacity:.13;stroke:none}.qfill{fill:#102a55}.qlabel{fill:#102a55;font-family:Arial,sans-serif;font-size:18px;font-weight:700;direction:ltr;unicode-bidi:isolate}.qchart{display:block!important;width:min(520px,94%);margin:18px auto 12px;padding:16px;border:1px solid #d8dce3;border-radius:10px;background:#fff;direction:rtl;clear:both}.qbarRow{display:grid;grid-template-columns:90px 1fr 45px;gap:10px;align-items:center;margin:10px 0;font-size:.72em}.qbarRow i{display:block;height:22px;border:1px solid currentColor;border-radius:3px;position:relative;overflow:hidden}.qbarRow i:before{content:"";position:absolute;inset:0 auto 0 0;width:var(--w);background:currentColor;opacity:.18}.qbarRow b{text-align:center}.answers button span,#answers button span{line-height:1.7}@media(max-width:600px){.qvisual{width:94%!important;min-height:175px;margin:12px auto 8px!important}.qvisual svg{min-height:165px}.qlabel{font-size:17px}.qchart{padding:10px}.qbarRow{grid-template-columns:70px 1fr 36px;gap:6px}.qfrac{font-size:.95em;min-width:1.35em}}
/* v80 unified math overrides */
.qsqrt{display:inline-flex!important;align-items:flex-start!important;position:relative!important;font-family:Arial,sans-serif!important;font-size:1.05em!important;direction:ltr!important;unicode-bidi:isolate!important;padding-left:.58em!important;vertical-align:middle!important}
.qsqrt:before{content:'√';position:absolute;left:0;bottom:.02em;font-size:1.18em;line-height:1}
.qsqrt>span{display:inline-block!important;border-top:1.7px solid currentColor!important;padding:.03em .14em 0!important;min-width:.42em}
.qpow{display:inline-flex!important;direction:ltr!important;unicode-bidi:isolate!important;align-items:flex-start!important;vertical-align:baseline!important;white-space:nowrap!important}
.qpow .qbase{display:inline-block!important}.qpow sup{display:inline-block!important;font-size:.62em!important;line-height:1!important;position:relative!important;top:-.52em!important;margin-left:.04em!important;vertical-align:baseline!important}

/* v82: Arabic RTL unit powers — keep exponent visually after the unit (سم²) */
.choice .qpow,#answers .qpow,.exAnswer .qpow,.explain .qpow{direction:rtl!important;display:inline-block!important;unicode-bidi:isolate!important;white-space:nowrap!important}
.choice .qpow .qbase,#answers .qpow .qbase,.exAnswer .qpow .qbase,.explain .qpow .qbase{display:inline-block!important}
.choice .qpow sup,#answers .qpow sup,.exAnswer .qpow sup,.explain .qpow sup{position:relative!important;top:-.55em!important;margin-right:.03em!important;margin-left:0!important;font-size:.62em!important;line-height:0!important;vertical-align:baseline!important}

/* v82 global RTL math fixes */
.qfrac{direction:ltr!important;unicode-bidi:isolate!important;vertical-align:middle!important;min-width:1.25em!important}
.qfrac>span:first-child{border-bottom:1.7px solid currentColor!important;padding:0 .16em .08em!important}.qfrac>span:last-child{padding:.08em .16em 0!important}
.qpow{direction:ltr!important;unicode-bidi:isolate!important;display:inline-flex!important;align-items:flex-start!important;white-space:nowrap!important;vertical-align:baseline!important}.qpow .qbase{direction:rtl!important;unicode-bidi:isolate!important}.qpow sup{direction:ltr!important;unicode-bidi:isolate!important;position:relative!important;top:-.55em!important;margin-left:.02em!important;margin-right:0!important;font-size:.62em!important}

/* v90 definitive math layout: isolate every mathematical atom from page RTL */
.qfrac,.qsqrt,.qpow{font-family:Arial,sans-serif!important;unicode-bidi:isolate!important;color:inherit!important}
.qfrac{display:inline-grid!important;grid-template-rows:auto auto!important;direction:ltr!important;text-align:center!important;line-height:1!important;vertical-align:middle!important;min-width:1.35em!important;margin:0 .12em!important}.qfrac>span{display:block!important;direction:ltr!important}.qfrac>span:first-child{border-bottom:1.8px solid currentColor!important;padding:0 .18em .10em!important}.qfrac>span:last-child{padding:.10em .18em 0!important}
.qsqrt{display:inline-flex!important;direction:ltr!important;align-items:flex-start!important;vertical-align:middle!important;position:relative!important;padding-left:.62em!important;margin:0 .08em!important}.qsqrt:before{content:'√'!important;position:absolute!important;left:0!important;bottom:0!important;font-size:1.22em!important;line-height:1!important}.qsqrt>span{display:inline-block!important;direction:ltr!important;border-top:1.8px solid currentColor!important;padding:.02em .12em 0!important;min-width:.45em!important;white-space:nowrap!important}
.qpow{display:inline-grid!important;grid-template-columns:auto auto!important;direction:ltr!important;vertical-align:baseline!important;align-items:start!important;white-space:nowrap!important}.qpow .qbase{grid-column:1!important;direction:rtl!important;unicode-bidi:isolate!important}.qpow sup{grid-column:2!important;direction:ltr!important;unicode-bidi:isolate!important;font-size:.60em!important;line-height:1!important;position:relative!important;top:-.55em!important;margin:0 0 0 .02em!important;vertical-align:baseline!important}

/* v91 exponent fix: Arabic base then exponent; no question/choice-specific overrides */
.qpow{display:inline-flex!important;direction:rtl!important;unicode-bidi:isolate!important;align-items:flex-start!important;vertical-align:baseline!important;white-space:nowrap!important}
.qpow .qbase{display:inline-block!important;direction:rtl!important;unicode-bidi:isolate!important;order:1!important}
.qpow sup{display:inline-block!important;direction:rtl!important;unicode-bidi:isolate!important;order:2!important;font-size:.60em!important;line-height:1!important;position:relative!important;top:-.52em!important;margin:0 .03em 0 0!important;vertical-align:baseline!important}

/* v92 hard power layout: DOM order is always BASE then EXPONENT */
.qpow{display:inline-flex!important;direction:ltr!important;unicode-bidi:isolate!important;align-items:baseline!important;white-space:nowrap!important;vertical-align:baseline!important;gap:0!important}
.qpow>.qbase{display:inline-block!important;direction:rtl!important;unicode-bidi:isolate!important;order:0!important}
.qpow>.qexp{display:inline-block!important;direction:rtl!important;unicode-bidi:isolate!important;order:1!important;font-size:.60em!important;line-height:1!important;position:relative!important;top:-.72em!important;margin-left:.03em!important;margin-right:0!important}

/* v93 restore the previously-correct exponent layout ONLY in choices and explanations */
.choice .qpow,#answers .qpow,.exAnswer .qpow,.explain .qpow{direction:rtl!important;display:inline-block!important;unicode-bidi:isolate!important;white-space:nowrap!important}
.choice .qpow>.qbase,#answers .qpow>.qbase,.exAnswer .qpow>.qbase,.explain .qpow>.qbase{display:inline-block!important;direction:rtl!important}
.choice .qpow>.qexp,#answers .qpow>.qexp,.exAnswer .qpow>.qexp,.explain .qpow>.qexp{display:inline-block!important;direction:rtl!important;font-size:.62em!important;line-height:0!important;position:relative!important;top:-.55em!important;margin-right:.03em!important;margin-left:0!important;vertical-align:baseline!important}

/* v94 question-only exponent fix: use the same proven layout as choices/explanations. */
#questionText .qpow{direction:rtl!important;display:inline-block!important;unicode-bidi:isolate!important;white-space:nowrap!important;vertical-align:baseline!important}
#questionText .qpow>.qbase{display:inline-block!important;direction:rtl!important;unicode-bidi:isolate!important}
#questionText .qpow>.qexp{display:inline-block!important;direction:rtl!important;unicode-bidi:isolate!important;font-size:.62em!important;line-height:0!important;position:relative!important;top:-.55em!important;margin-right:.03em!important;margin-left:0!important;vertical-align:baseline!important}