:root{color-scheme:light;--paper:#fffdf6;--page:#f5f0e4;--ink:#223f38;--muted:#5b6b61;--line:#d4ccba;--green:#294f42;--gold:#b58330;--wash:#e9eddf;--error:#943f2e;font:17px/1.5 Arial,Helvetica,sans-serif;background:var(--page);color:var(--ink)}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 70% 20%,#fffdf680,transparent 70%),var(--page)}a{color:var(--green);text-underline-offset:4px}button,input,select,textarea{font:inherit;color:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default;opacity:.6}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--gold);outline-offset:4px}button,.button{min-height:46px;border:1px solid #a9b19e;background:var(--paper);padding:10px 19px;border-radius:6px;display:inline-flex;gap:10px;align-items:center;justify-content:center;text-decoration:none;box-shadow:0 2px 0 #d7d0bd}button:hover,.button:hover{border-color:var(--green)}.primary{background:var(--green);border-color:var(--green);color:#fffdf5;box-shadow:0 3px 0 #153629}.quiet{border:0;background:none;box-shadow:none;text-decoration:underline;padding:8px 0}.review-bar{display:flex;align-items:center;gap:16px;padding:7px 24px;background:#e8dfc9;border-bottom:1px solid #cabd9f;font-size:13px;position:relative;z-index:8;min-height:44px}.review-bar>span{flex:1}.review-bar summary{cursor:pointer;min-height:32px;padding:6px}.review-bar nav{position:absolute;right:16px;top:43px;width:250px;display:grid;padding:12px;background:var(--paper);border:1px solid var(--line);box-shadow:0 8px 20px #243e3826}.review-bar nav a{padding:9px}.review-bar nav button{font-size:14px;margin-top:8px}.mast{display:flex;justify-content:space-between;align-items:center;padding:16px 32px;border-bottom:1px solid var(--line);gap:18px;background:#fffdf6b8}.brand{font:30px/1 Georgia,serif;text-decoration:none;display:flex;align-items:center;gap:10px}.brand img{width:34px;height:34px;border-radius:8px}.identity{font-size:14px;color:var(--muted)}.layout{display:grid;grid-template-columns:205px minmax(0,1fr);min-height:calc(100dvh - 125px)}.rail{border-right:1px solid var(--line);padding:28px 20px;background:#e9e6d9}.rail p{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:0 12px 14px}.rail nav{display:grid;gap:8px}.rail a{padding:12px 14px;text-decoration:none;border-left:3px solid transparent}.rail a[aria-current=page]{border-color:var(--green);background:#fffdf5;font-weight:bold;box-shadow:0 2px 5px #594e3212}.workspace{width:min(1120px,100%);padding:30px 40px 64px;margin:0 auto;min-width:0}.setup{width:min(750px,calc(100% - 40px));margin:30px auto 64px}.back{display:inline-flex;min-height:44px;align-items:center;margin-bottom:14px;text-decoration:none;font-size:15px}.eyebrow{text-transform:uppercase;letter-spacing:.09em;font-size:12px;color:var(--muted);margin:0 0 10px}h1{font:38px/1.15 Georgia,serif;margin:0 0 14px}h2{font:27px/1.25 Georgia,serif;margin:0 0 12px}h3{font-size:18px;margin:0 0 8px}p{margin:0 0 16px}.lede{font-size:18px;color:var(--muted);max-width:620px}.sheet{padding:28px;background:var(--paper);border:1px solid var(--line);border-radius:9px;box-shadow:0 5px 0 #dcd5c4,0 12px 24px #4c452c0a;margin:22px 0}.choice-list{display:grid;gap:14px;margin:24px 0}.choice{padding:18px 22px;display:flex;text-align:left;justify-content:space-between;align-items:center;gap:18px;width:100%;background:var(--paper);border:1px solid #b9baa9;border-radius:8px;box-shadow:0 3px 0 #dcd5c4;text-decoration:none}.choice strong{font:24px/1.2 Georgia,serif;display:block}.choice small{display:block;font-size:15px;color:var(--muted);margin-top:5px}.choice .arrow{font-size:23px}.choice:hover{background:#fdfbf0;border-color:var(--green)}.fields{display:grid;grid-template-columns:1fr 1fr;gap:20px}.fields .wide{grid-column:1/-1}label{display:block;font-weight:bold;font-size:15px;margin-bottom:7px}input,select,textarea{min-height:48px;background:#fffefb;border:1px solid #9ca993;border-radius:5px;padding:10px 12px;width:100%}textarea{resize:vertical;min-height:150px;font:14px/1.6 ui-monospace,monospace}.actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:24px}.muted{color:var(--muted)}.small{font-size:14px}.rule{border-top:1px solid var(--line);padding-top:20px;margin-top:20px}.facts{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:20px 0}.facts dt{font-size:13px;color:var(--muted)}.facts dd{font-weight:bold;margin:3px 0 0;font-size:18px}.notice{padding:14px 18px;border-left:4px solid var(--green);background:var(--wash);margin:18px 0}.notice.error{border-color:var(--error);background:#f6e9df;color:#763322}.heading-row{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-bottom:20px}.heading-row h1{margin-bottom:5px}.tag{font-size:13px;padding:5px 10px;border:1px solid #b8c3ad;border-radius:20px;background:#f2f3e9;white-space:nowrap}.tag.warn{background:#f5e9cf;border-color:#d2b986}.tag.low{background:#f5e4d9;border-color:#d5b4a0}.hero{display:grid;grid-template-columns:minmax(0,1fr) 180px;gap:20px;align-items:center;border-top:4px solid var(--green)}.hero .mini-art{height:140px;display:grid;align-content:center;gap:12px;transform:rotate(-3deg);padding:20px;background:#f2e7c9;box-shadow:3px 4px 0 #d4c6a3}.fraction-row{height:25px;border:2px solid var(--green);display:grid;grid-template-columns:repeat(4,1fr)}.fraction-row span{border-right:1px solid var(--green)}.fraction-row span:last-child{border:0}.fraction-row .filled{background:#b98b36}.columns{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(250px,1fr);gap:28px}.section{margin:32px 0}.list-row{display:flex;justify-content:space-between;align-items:center;gap:18px;border-bottom:1px solid var(--line);padding:17px 0}.list-row strong{display:block}.list-row small{display:block;color:var(--muted);margin-top:5px}.list-row:last-child{border-bottom:0}.list-row .button{flex:none}.metrics{display:flex;gap:36px;flex-wrap:wrap;margin:24px 0}.metrics strong{font:34px Georgia,serif;display:block}.metrics span{font-size:14px;color:var(--muted)}.table-wrap{overflow:auto;margin:18px 0}table{border-collapse:collapse;width:100%;font-size:15px}th{text-align:left;font-size:13px;color:var(--muted);font-weight:normal;background:#f1ede1}td,th{padding:14px 12px;border-bottom:1px solid var(--line);vertical-align:top}td small{display:block;color:var(--muted)}td .quiet{min-height:40px;font-size:14px;padding:3px 0}.table-wrap input,.table-wrap select{min-width:150px;font-size:14px}.rating{display:flex;align-items:center;gap:9px}.dot{width:9px;height:9px;border:1px solid var(--green);border-radius:50%;background:#668262;flex:none}.dot.amber{background:#be8e3c}.dot.hollow{background:transparent}.tabs{display:flex;gap:20px;border-bottom:1px solid var(--line);margin:20px 0}.tabs a{padding:10px 2px;text-decoration:none}.tabs [aria-current=page]{font-weight:bold;border-bottom:3px solid var(--green)}.person{display:flex;gap:14px;align-items:center}.avatar{display:grid;place-items:center;width:48px;height:48px;border-radius:50%;background:#dbdcb8;border:1px solid #a8b18d;font:22px Georgia,serif}.check-choices{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:25px 0}.check-choices button{font-size:24px;min-height:70px}.check-choices button[aria-pressed=true]{border:3px solid var(--green);background:#e4ebda}.lesson{background:var(--paper);border:1px solid var(--line);border-radius:9px;padding:30px;min-height:340px;display:grid;align-content:center;gap:26px;max-width:750px;margin:20px auto;text-align:center}.lesson .fraction-row{height:70px}.lesson .choice{font:inherit}.lesson-progress{display:flex;justify-content:center;gap:28px;font-size:14px}.lesson-progress strong{border-bottom:3px solid var(--green);padding-bottom:8px}.visuals{width:100%;border-radius:8px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}.skip{position:absolute;top:-100px;left:15px;background:var(--paper);padding:12px;z-index:20}.skip:focus{top:4px}.empty{padding:24px;border:1px dashed #a7b39c;background:#f4f4e9}.save-mark{color:var(--green);font-weight:bold}.toggle{display:flex;align-items:center;gap:10px;font-weight:normal}.toggle input{width:22px;min-height:22px}.screen-note{font-size:13px;color:var(--muted);margin-top:24px}.child-switch{max-width:250px}.loading{font-size:19px;padding:30px;border-left:4px solid var(--gold)}[hidden]{display:none!important}@media(max-width:900px){.layout{grid-template-columns:165px minmax(0,1fr)}.workspace{padding:24px}.rail{padding:24px 10px}.columns{grid-template-columns:1fr}.hero{grid-template-columns:1fr 130px}.hero .mini-art{padding:12px;height:120px}}@media(max-width:600px){:root{font-size:16px}.review-bar{padding:6px 12px;gap:8px}.review-bar>span{font-size:11px;max-width:140px}.mast{padding:16px}.brand{font-size:26px}.identity{font-size:12px;text-align:right;max-width:135px}.layout{display:block}.rail{padding:5px 12px;border-right:0;border-bottom:1px solid var(--line)}.rail p{display:none}.rail nav{display:flex;flex-wrap:wrap;gap:0}.rail a{font-size:14px;padding:12px 10px;border-left:0;border-bottom:3px solid transparent}.rail a[aria-current=page]{border-bottom-color:var(--green);background:transparent;box-shadow:none}.workspace{padding:24px 18px 48px}.setup{width:calc(100% - 36px);margin:22px auto 48px}h1{font-size:31px}h2{font-size:25px}.sheet{padding:21px;margin:20px 0}.fields{grid-template-columns:1fr;gap:17px}.fields .wide{grid-column:auto}.facts{gap:18px 12px}.facts dd{font-size:17px}.hero{grid-template-columns:1fr}.hero .mini-art{display:none}.heading-row{align-items:flex-start;flex-wrap:wrap;gap:10px}.choice{padding:18px}.choice strong{font-size:23px}.list-row{align-items:flex-start;flex-wrap:wrap;gap:12px}.metrics{gap:25px}.metrics strong{font-size:29px}.actions{gap:15px}.actions .primary{width:100%}.table-wrap{margin:12px -7px}td,th{padding:12px 8px}.lesson{padding:22px 18px;min-height:310px}.lesson-progress{gap:14px;font-size:13px}.check-choices{gap:10px}.check-choices button{padding:12px}.tabs{gap:18px}.person{gap:10px}.tag{white-space:normal}.screen-note{font-size:12px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}

main:focus{outline:none}.role-choices{grid-template-columns:1fr 1fr}.role-choices .choice{min-height:112px}.role-choices .choice strong{font-size:23px}@media(max-width:600px){.role-choices{grid-template-columns:1fr}.role-choices .choice{min-height:90px}}

.tag{display:inline-block}@media(max-width:600px){.table-wrap{overflow:visible;margin:18px 0}.table-wrap table,.table-wrap tbody,.table-wrap tr{display:block}.table-wrap thead{display:none}.table-wrap tr{padding:12px 0;border-bottom:1px solid var(--line)}.table-wrap td{display:grid;grid-template-columns:100px minmax(0,1fr);gap:12px;border:0;padding:8px 0;font-size:15px}.table-wrap td::before{content:attr(data-label);font-size:13px;color:var(--muted)}.table-wrap .cell-value{min-width:0;overflow-wrap:anywhere}.table-wrap input,.table-wrap select{min-width:0;width:100%}}