:root{font-family:Segoe UI,Arial,sans-serif;color:#172c3c;background:#f4f6f4;font-synthesis:none;--ink:#172c3c;--muted:#5e7077;--line:#dce4e1;--green:#126653;--pale:#e6f2eb;--card:#fff;--accent:#eac26c}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer;border:1px solid var(--line);border-radius:10px;background:white;color:var(--ink);padding:11px 16px;min-height:44px;font-weight:600}button:hover{border-color:var(--green);background:var(--pale)}button:disabled{opacity:.5;cursor:not-allowed}button.primary{background:var(--green);color:white;border-color:var(--green)}button.danger{color:#a33333}.quiet{background:transparent;border-color:transparent}a{color:var(--green)}input,textarea,select{border:1px solid #b5c7c0;border-radius:8px;padding:11px;width:100%;background:var(--card);color:var(--ink)}textarea{min-height:100px;resize:vertical}input[type=checkbox],input[type=radio]{width:20px;height:20px;accent-color:var(--green);flex-shrink:0}label{display:block;font-weight:600;font-size:14px;margin:12px 0 7px}.hint,.muted{color:var(--muted);font-size:14px;line-height:1.6}.small{font-size:12px}.shell{display:grid;grid-template-columns:238px 1fr;min-height:100vh}.sidebar{background:#152f2b;color:#ecf5ef;padding:30px 22px;position:sticky;top:0;height:100vh;display:flex;flex-direction:column;gap:9px}.brand{display:flex;gap:11px;align-items:center;font-size:23px;letter-spacing:-.5px;font-weight:750}.brandmark{background:#eac26c;color:#193b30;border-radius:12px;padding:8px 11px;font-size:22px}.sidebar .muted{color:#a9c5b9}.sidebar button{background:transparent;color:#d1e1d9;border-color:transparent;text-align:left;font-weight:500}.sidebar button.active,.sidebar button:hover{background:#315048;color:#fff}.sidebar .bottom{margin-top:auto}.main{min-width:0;padding:30px 42px 70px;max-width:1440px}.topline{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:20px;margin-bottom:30px;gap:15px}.eyebrow{text-transform:uppercase;letter-spacing:1.6px;font-size:11px;font-weight:700;color:var(--green)}h1{font-size:34px;letter-spacing:-1.1px;margin:9px 0 12px;line-height:1.15}h2{font-size:21px;margin:0 0 14px}h3{font-size:17px;line-height:1.4;margin:0 0 10px}p{line-height:1.65}.hero{display:flex;justify-content:space-between;align-items:center;gap:30px;margin-bottom:28px}.hero p{max-width:620px;color:var(--muted);margin:0}.hero-art{width:130px;height:115px;flex-shrink:0;background:#e8edce;border-radius:50% 40% 40% 55%;display:grid;place-items:center;font-size:54px;transform:rotate(-7deg)}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:24px 0}.stat{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px}.stat strong{display:block;font-size:32px;margin-bottom:5px}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px;margin-bottom:18px}.card.accent{border-top:4px solid var(--green)}.tag{display:inline-block;background:var(--pale);color:var(--green);border-radius:6px;padding:5px 8px;font-size:12px;font-weight:650;margin:0 6px 10px 0}.tag.gold{background:#fff0cf;color:#806020}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.row.end{justify-content:flex-end}.row.between{justify-content:space-between}.spaced{margin:20px 0}.listrow{padding:16px 0;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:14px}.listrow strong{display:block;margin-bottom:5px}.empty{padding:36px;text-align:center;color:var(--muted);background:#edf2ed;border-radius:12px}.error{background:#fff0ed;border-left:4px solid #b54538;padding:12px;color:#7f3028}.success{background:#e4f1e8;padding:14px;border-radius:8px;color:#175740}.notice{background:#fff5dc;padding:14px;border-radius:8px;color:#705520;margin:15px 0}.modal{border:none;border-radius:16px;max-width:850px;width:calc(100% - 24px);padding:28px;max-height:92vh;color:var(--ink);background:var(--card)}.modal::backdrop{background:#102c2580}.modal header{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:18px}.modal header h2{margin:0}.formgrid{display:grid;grid-template-columns:1fr 1fr;gap:0 20px}.auth{min-height:100vh;display:grid;grid-template-columns:1fr 1fr}.auth-story{background:#163b32;color:#f6f9ee;padding:60px;display:flex;flex-direction:column;justify-content:center}.auth-story h1{font-size:48px;max-width:480px;line-height:1.1;margin:40px 0 20px}.auth-story p{color:#c2d5c9;max-width:450px}.auth-form{padding:50px;display:flex;align-items:center;justify-content:center}.auth-inner{width:100%;max-width:420px}.auth-inner .primary{width:100%;margin-top:20px}.question-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:24px}.question{padding:32px}.question h2{font-size:24px;line-height:1.4}.option{display:flex;gap:13px;align-items:center;font-weight:500;padding:15px;border:1px solid var(--line);border-radius:10px;cursor:pointer;margin:10px 0}.option:has(input:checked){background:var(--pale);border-color:var(--green)}.progress{height:7px;background:#dce5dd;border-radius:10px;overflow:hidden;margin:14px 0}.progress div{background:var(--green);height:100%}.question-nav{display:grid;grid-template-columns:repeat(5,1fr);gap:6px}.question-nav button{padding:6px;min-width:0}.question-nav .answered{background:#e6f2eb}.question-nav .current{background:var(--green);color:white}.sticky{position:sticky;top:22px;align-self:start}.order-row{display:flex;align-items:center;gap:10px;padding:9px;border:1px solid var(--line);border-radius:8px;margin:8px 0}.order-row span{flex:1}.pair-row{display:grid;grid-template-columns:1fr 1fr;gap:15px;align-items:center;margin:12px 0}.feedback{white-space:pre-wrap;line-height:1.7}.code{font-family:Consolas,monospace;font-size:27px;letter-spacing:3px;background:#edf3ee;padding:18px;text-align:center;border-radius:10px;color:#163b32}.qr{width:200px;height:200px;display:block;margin:20px auto}.print-only{display:none}#toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:#173c32;color:white;padding:14px 23px;border-radius:10px;z-index:100;max-width:90vw;display:none}.editor-question{border-left:3px solid #d9a544}.dangertext{color:#a33333}.review-answer{white-space:pre-wrap;background:#f2f5f1;padding:14px;border-radius:8px}.full{width:100%}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #d1a340;outline-offset:3px}body.dark{--ink:#e8f2ee;--muted:#b0c3bc;--card:#1e332e;--line:#42574e;--pale:#2b4b3d;--green:#a8ddbd;background:#14231e;color:var(--ink)}body.dark button{background:var(--card);color:var(--ink)}body.dark .primary{color:#123321;background:#a8ddbd}body.dark .review-answer{background:#152c23}body.dark .error{color:#ffe9e5;background:#542a23}
@media(max-width:1050px){.main{padding:25px}.shell{grid-template-columns:205px 1fr}.question-layout{grid-template-columns:1fr}.sticky{position:static}.hero-art{display:none}}
@media(max-width:720px){.shell{display:block}.sidebar{height:auto;position:static;padding:15px;display:flex;flex-direction:row;flex-wrap:wrap;gap:5px}.sidebar .brand{width:100%;margin-bottom:6px}.sidebar .bottom{margin:0}.sidebar .muted{display:none}.sidebar button{padding:9px;font-size:13px}.main{padding:20px 15px 50px}.topline{margin-bottom:20px;padding-bottom:15px}h1{font-size:28px}.grid,.formgrid{grid-template-columns:1fr}.stats{gap:8px}.stat{padding:12px}.stat strong{font-size:25px}.stat span{font-size:12px}.card,.question{padding:20px}.auth{display:block}.auth-story{padding:25px}.auth-story h1{font-size:29px;margin:20px 0 10px}.auth-story p{display:none}.auth-form{padding:28px 20px}.listrow{align-items:flex-start;flex-wrap:wrap}.pair-row{grid-template-columns:1fr;gap:3px}.question h2{font-size:21px}}
@media print{body{background:white!important;color:black!important}.shell,.auth,#toast,dialog{display:none!important}.print-only{display:block!important;font-family:Arial,sans-serif;color:black}.print-only h1{font-size:22px;letter-spacing:0}.print-only h2{font-size:15px;margin-top:15px}.print-question{break-inside:avoid;margin:16px 0}.print-lines{height:70px;background:repeating-linear-gradient(white,white 23px,#aaa 24px);print-color-adjust:exact}.print-only p{margin:5px 0;line-height:1.45}@page{size:A4;margin:17mm}}
body.dark .question-nav .answered{background:var(--pale)}body.dark .question-nav .current{background:var(--green);color:#14231e}body.dark .empty{background:var(--card)}.code,.review-answer,.feedback,.material-link{overflow-wrap:anywhere}.order-row span{min-width:0;overflow-wrap:anywhere}.sticky>button{margin:4px 0}.material-link{border:1px solid var(--line);border-radius:8px;padding:10px 14px}.modal header{position:sticky;top:-28px;background:var(--card);z-index:1;padding:12px 0}

.editor-wide{max-width:1250px}.editor-columns{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px}.editor-preview{position:sticky;top:45px;max-height:73vh;overflow:auto;background:var(--pale);padding:20px;border-radius:12px}.editor-question summary{font-weight:650;cursor:pointer;min-height:44px;padding:8px 0}.editor-save{position:sticky;bottom:-28px;background:var(--card);padding:15px 0}.sidebar>select{margin-top:10px}.sidebar>label{color:#d1e1d9}.activation-slip{break-inside:avoid;border-bottom:1px dashed #777;padding:15px 0}body[data-font=large]{font-size:18px}body[data-font=extra]{font-size:21px}body[data-font=large] .muted,body[data-font=large] label,body[data-font=large] .small{font-size:16px}body[data-font=extra] .muted,body[data-font=extra] label,body[data-font=extra] .small{font-size:18px}body[data-font=large] button,body[data-font=large] input,body[data-font=large] textarea,body[data-font=large] select{font-size:18px;min-height:48px}body[data-font=extra] button,body[data-font=extra] input,body[data-font=extra] textarea,body[data-font=extra] select{font-size:20px;min-height:52px}.sidebar{overflow-y:auto}.question-nav button{font-variant-numeric:tabular-nums}.card>button{margin:4px}.editor-preview .card{overflow-wrap:anywhere}@media(max-width:900px){.editor-columns{grid-template-columns:1fr}.editor-preview{position:static;max-height:450px}.sidebar>label{margin:5px}.sidebar>select{max-width:180px;margin:0}}@media print{.activation-slip h2{font-size:18px}}

/* 0.14: fixed controls, compact accessible rows */
.sticky14{display:grid;grid-template-columns:minmax(100px,.6fr) minmax(150px,1fr);gap:8px 12px;align-items:center;padding:16px}.sticky14>label,.sticky14>input,.sticky14>select{margin:0}.sticky14>button{grid-column:1/-1}@media(max-width:420px){.sticky14{grid-template-columns:minmax(85px,.5fr) minmax(120px,1fr);font-size:14px}}
.sticky14{position:sticky;top:0;z-index:5;box-shadow:0 4px 12px #0001;background:var(--card,#fff)}
.compact14{padding:10px 0;gap:12px}.compact14>div{flex:1;min-width:130px}.compact14 input[type=checkbox]{width:24px;height:24px;flex:none}.compact14 button{min-height:44px}details>summary{cursor:pointer;padding:12px 0;font-weight:600}details[open]>summary{margin-bottom:8px}.dark .sticky14{background:#1e302c}@media(max-width:600px){.compact14{flex-wrap:wrap}.sticky14{max-height:45vh;overflow:auto}.main{padding-bottom:24px}}