:root{--ink:#192a43;--muted:#64748b;--primary:#4656d9;--line:#e2e7f0;--bg:#f5f7fc;--green:#13795b;--orange:#aa5017}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 system-ui,-apple-system,'Segoe UI',sans-serif}header{background:white;border-bottom:1px solid var(--line);padding:18px max(24px,calc((100% - 1120px)/2));display:flex;justify-content:space-between;gap:16px;align-items:center}.brand,.account,.top,.dialoghead,.row{display:flex;align-items:center;gap:14px}.brand small{display:block;color:var(--muted);font-size:12px}.logo{display:grid;place-items:center;width:42px;height:42px;border-radius:14px;background:var(--primary);color:white;font-size:24px}.account{flex-wrap:wrap;font-size:13px}.top,.dialoghead{justify-content:space-between}.top{margin:22px 0}main{max-width:1120px;margin:auto;padding:24px}h1{font-size:30px;line-height:1.4;margin:6px 0 16px}h2{font-size:21px;margin:0 0 14px}h3{font-size:18px;margin:0 0 12px}p{margin:10px 0}.eyebrow{color:var(--primary);font-weight:700;font-size:13px}.welcome{max-width:680px;margin:65px auto;padding:48px;background:white;border:1px solid var(--line);border-radius:24px;box-shadow:0 12px 45px #23346d08}.welcome h1{font-size:36px}.welcome p{color:var(--muted);margin-bottom:26px}.welcome small{display:block;color:var(--muted);margin-top:20px}button{border:0;background:var(--primary);color:white;padding:11px 18px;border-radius:10px;font:inherit;font-weight:650;cursor:pointer}button:hover{filter:brightness(.96)}button:disabled{opacity:.55;cursor:wait}.quiet{background:white;color:var(--ink);border:1px solid var(--line)}.danger{color:#a83232}.small{padding:6px 12px;font-size:13px}nav{display:flex;gap:8px;border-bottom:1px solid var(--line);margin-bottom:26px;padding-bottom:14px;flex-wrap:wrap}nav button{background:transparent;color:var(--muted)}nav button.active{background:#e9ecff;color:var(--primary)}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:18px}.card{background:white;border:1px solid var(--line);border-radius:16px;padding:24px;margin-bottom:18px}.card .meta,.muted{color:var(--muted);font-size:14px}.pill{display:inline-block;padding:3px 10px;border-radius:20px;background:#eef0f7;color:var(--muted);font-size:12px}.pill.published{background:#e3f5ed;color:var(--green)}.pill.closed{background:#fff0e4;color:var(--orange)}.cardactions{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}.empty{text-align:center;padding:44px;background:white;border:1px dashed var(--line);border-radius:16px;color:var(--muted)}label{display:block;font-weight:650;font-size:14px;margin:10px 0 5px}input,select,textarea{width:100%;padding:11px 12px;border:1px solid #cfd6e3;border-radius:9px;background:white;color:var(--ink);font:inherit}textarea{min-height:90px;resize:vertical}.account select{width:auto;max-width:290px}.fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.filters{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:18px}.filters>div{flex:1;min-width:150px}.choice{display:flex;gap:12px;align-items:center;padding:12px;border:1px solid var(--line);border-radius:10px;margin:10px 0;cursor:pointer;font-weight:400}.choice:has(input:checked){border-color:var(--primary);background:#f0f2ff}.choice input{width:20px;height:20px;flex-shrink:0;accent-color:var(--primary)}.choice.correct{border-color:#95d6bb;background:#f0faf5}.choice.wrong{border-color:#e9b099;background:#fff5f0}.feedback{white-space:pre-wrap;border-left:4px solid var(--primary);padding:12px 16px;background:#f4f5ff;margin-top:16px}.good{color:var(--green)}.bad{color:var(--orange)}.score{font-size:34px;font-weight:750;color:var(--primary)}.stats{display:flex;gap:28px;flex-wrap:wrap;margin:18px 0}.stats strong{display:block;font-size:26px}.tablewrap{overflow:auto}table{width:100%;border-collapse:collapse;font-size:14px}th,td{padding:12px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}th{color:var(--muted);background:#fafbfe}.editor{border-left:4px solid #b8c0f5}.optioneditor{display:grid;grid-template-columns:1fr 1fr;gap:10px}.optioneditor input{font-size:14px}#notice{padding:14px 18px;background:#edf2ff;border:1px solid #c6d3fb;border-radius:10px;margin-bottom:18px;white-space:pre-wrap}#notice.error{background:#fff0ed;border-color:#efc2b8;color:#a73522}dialog{border:1px solid var(--line);border-radius:20px;max-width:800px;width:calc(100% - 32px);max-height:90vh;padding:26px;color:var(--ink)}dialog::backdrop{background:#15233d66}.dialoghead{position:sticky;top:-26px;background:white;padding:8px 0 16px;z-index:1}footer{text-align:center;padding:26px;color:var(--muted);font-size:12px}[hidden]{display:none!important}:focus-visible{outline:3px solid #99a5ff;outline-offset:3px}@media(max-width:640px){header{padding:14px 18px}.account span{max-width:155px;overflow-wrap:anywhere}main{padding:18px}.welcome{padding:28px;margin:30px auto}.welcome h1{font-size:29px}.fields,.optioneditor{grid-template-columns:1fr}.top{align-items:flex-start;flex-direction:column}h1{font-size:25px}.card{padding:18px}}