.mf{--ink:#17343b;--teal:#12646b;max-width:1440px;color:var(--ink);background:#f5f6ef;margin:auto;padding:24px;font-size:17px;line-height:1.65}.mf *{box-sizing:border-box}.mf h1{font-size:clamp(2rem,5vw,3.5rem);line-height:1.15}.mf h2{font-size:1.8rem;line-height:1.25}.mf h3{margin-top:1.6rem}.mf a{color:#07545e;text-decoration:underline}.mf-header{flex-wrap:wrap;align-items:center;gap:24px;display:flex}.mf-header>div{margin-left:auto}.mf-hero{border-bottom:2px solid #afbab0;padding:32px 0 24px}.mf-hero-descriptor{white-space:pre-line}.mf-status{letter-spacing:.05em;font-size:.85rem;font-weight:700}.mf button{min-height:44px;color:var(--ink);cursor:pointer;font:inherit;background:#fff;border:1px solid #43666a;border-radius:6px;margin:5px 8px 5px 0;padding:10px 15px}.mf button:hover,.mf button[aria-pressed=true],.mf button[aria-current=page]{background:var(--teal);color:#fff}.mf button:disabled{opacity:.5;cursor:not-allowed}.mf :focus-visible{outline-offset:3px;outline:3px solid #bd7012}.mf-tabs{flex-wrap:wrap;padding:14px 0;display:flex}.mf-layout{grid-template-columns:285px minmax(0,1fr);gap:28px;display:grid}.mf-sidebar{border-right:1px solid #bbc8be;padding-right:20px}.mf-sidebar ol{padding-left:20px}.mf-sidebar button{text-align:left;background:0 0;border:0;width:100%;font-size:.9rem}.mf-main{min-width:0}.mf-main article,.mf-main>section,.mf-tutor{background:#fff;border:1px solid #c8d2c7;border-radius:8px;margin-bottom:24px;padding:24px}.mf label{margin:14px 0;font-weight:600;display:block}.mf input,.mf textarea,.mf select{width:100%;max-width:100%;color:var(--ink);font:inherit;background:#fff;border:1px solid #738c89;border-radius:4px;padding:10px;display:block}.mf textarea{resize:vertical;min-height:85px}.mf .mf-check{align-items:center;gap:8px;margin:6px 20px 6px 0;font-weight:400;display:inline-flex}.mf .mf-check input{width:20px;height:20px}.mf-example{border-left:4px solid var(--teal);background:#f1f7f3;margin:20px 0;padding:12px 20px}.mf-math{white-space:pre-wrap;overflow-wrap:anywhere;background:#eaf0ea;padding:14px;font-family:ui-monospace,monospace;font-size:1.05rem;overflow-x:auto}.mf-reviewbar{border-left:4px solid #bd7012!important}.mf-pager{justify-content:space-between;gap:8px;display:flex}.mf details summary{cursor:pointer;min-height:44px;padding:8px;font-weight:700}.mf-inputs{gap:16px;display:flex}.mf-inputs label{flex:1;min-width:0}.mf svg{background:#f8faf5;width:100%;max-width:600px;margin:20px auto;display:block}.mf table{border-collapse:collapse;width:100%;font-size:.92rem}.mf th,.mf td{text-align:left;border:1px solid #a6b8ac;padding:10px}.mf th{background:#e5eee6}.mf-scroll{overflow:auto}.mf-fraction{flex-wrap:wrap;display:flex}.mf-fraction span{text-align:center;border:1px solid #17343b;min-width:30px;padding:10px}.mf fieldset{border:1px solid #c8d2c7;padding:16px}.mf-exercise{padding:18px!important}.mf small{font-size:.86rem}.mf-admin{border:2px solid #d5c298;margin:20px 0;padding:22px}.academy-format-authority{margin-bottom:0;font-size:.92rem;font-weight:700}.academy-format-record{gap:.7rem;margin:1rem 0 0;display:grid}.academy-format-record>div{border-top:1px solid #c8d2c7;grid-template-columns:minmax(9rem,.35fr) 1fr;gap:1rem;padding-top:.7rem;display:grid}.academy-format-record dt{font-weight:700}.academy-format-record dd{overflow-wrap:anywhere;margin:0}.mf p{overflow-wrap:anywhere}.academy-lesson-meta{color:#536b6f;letter-spacing:.035em;margin:0 0 .65rem;font-size:.9rem;font-weight:700}.academy-lesson-sections{max-width:900px}.academy-lesson-section{margin:2.4rem 0}.academy-lesson-section:first-child{margin-top:2.8rem}.academy-lesson-section h3{margin:0 0 .9rem}.academy-lesson-section p{margin:.65rem 0 0}.academy-lesson-section ul,.academy-lesson-section ol{margin:.75rem 0 0;padding-left:1.5rem}.academy-lesson-section li+li{margin-top:.65rem}.academy-lesson-section .mf-example{margin:1.25rem 0;padding:1.1rem 1.25rem}.academy-lesson-section .mf-example h4{margin:0 0 .75rem;font-size:1.05rem}.mf-exercise>p:first-child{margin-top:0}.mf-exercise label{margin-top:1.25rem}.mf-exercise button{margin-top:.75rem}.mf-tutor{margin-top:1.5rem}.mf-admin{margin-top:2rem}.mf-72-parity .mf-module-list>li{margin-bottom:.8rem}.mf-72-parity .mf-module-list>li>button strong,.mf-72-parity .mf-module-list>li>button span{display:block}.mf-72-parity .mf-module-list>li>button span{margin-top:.25rem;line-height:1.45}.mf-72-parity .mf-class-list{margin:.35rem 0 .8rem;padding-left:1rem}.mf-72-parity .mf-class-list li+li{margin-top:.3rem}.mf-72-parity .mf-module-intro{margin-bottom:1.5rem}.mf-72-parity .mf-module-intro p{margin:.65rem 0}.mf-81-parity .mf-module-intro{gap:.7rem;margin-bottom:1.5rem;display:grid}.mf-81-parity .mf-module-intro>*{margin:0}.mf-81-parity .mf-class-list{margin:.65rem 0 .85rem 1rem;padding-left:.8rem}.mf-81-parity .mf-class-list button{padding-block:.55rem;line-height:1.45}.mf-81-parity .mf-guided-grid{gap:1rem;display:grid}.mf-81-parity .academy-lesson-section{margin:2.4rem 0}.mf-81-parity .academy-lesson-section:first-child{margin-top:2.8rem}.mf-81-parity .mf-example,.mf-81-parity .mf-exercise{margin:1.25rem 0}@media (width<=800px){.mf{padding:15px}.mf-layout{grid-template-columns:1fr}.mf-sidebar{border-bottom:1px solid #bbc8be;border-right:0;padding:0}.mf-sidebar ol{max-height:220px;overflow:auto}.mf-main article,.mf-main>section{padding:16px}.mf-header>div{margin-left:0}.mf-tabs button{font-size:.9rem}.academy-format-record>div{grid-template-columns:1fr;gap:.2rem}}@media print{.mf-header,.mf-tabs,.mf-sidebar,.mf-admin,.mf-tutor,.mf-reviewbar,.mf button{display:none}.mf-layout{display:block}.mf{color:#000;background:#fff}}