/* Mathematics & Statistics */
:root{--b-math:url("banners/math.svg")}
.chapters li.mt-part{cursor:default;padding:10px 10px 2px;font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--sc,var(--brand))}
.chapters li.mt-part:hover{background:none}
.chapters li.mt-part:not(:first-child){margin-top:6px;border-top:1px solid var(--line);padding-top:12px}
/* worked maths steps */
.mt-eq{font-family:"Cambria Math","STIX Two Math","Times New Roman",serif;font-size:1.05em;white-space:nowrap}
.mt-frac{display:inline-flex;flex-direction:column;vertical-align:middle;text-align:center;line-height:1.15;margin:0 2px}
.mt-frac>span:first-child{border-bottom:1px solid currentColor;padding:0 3px}
.mt-frac>span:last-child{padding:0 3px}
.mt-mat{display:inline-grid;vertical-align:middle;gap:2px 12px;padding:2px 8px;border-left:2px solid currentColor;border-right:2px solid currentColor;border-radius:6px;margin:0 4px;text-align:center;font-variant-numeric:tabular-nums}
.mt-det{border-radius:0}
.pr-q .mt-mat,.pr-sol .mt-mat{font-size:.95em}