:root{--bg:#f5f6f8;--surface:#fff;--ink:#14181f;--muted:#667085;--line:#e4e7ec;--brand:#0b7a5b;--brand-ink:#fff;--brand-soft:#e3f5ee;--warn:#b54708;--warn-soft:#fef0c7;--bad:#b42318;--bad-soft:#fee4e2;--ok:#067647;--ok-soft:#dcfae6;--radius:10px}@media (prefers-color-scheme:dark){:root{--bg:#0f1216;--surface:#171b21;--ink:#eef0f3;--muted:#98a2b3;--line:#2a3039;--brand:#2bb386;--brand-ink:#04140e;--brand-soft:#12302a;--warn:#fdb022;--warn-soft:#3a2a08;--bad:#f97066;--bad-soft:#3b1512;--ok:#47cd89;--ok-soft:#0f2f1f}}*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);margin:0;font:14px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}h1,h2,h3{margin:0;line-height:1.25}h1{font-size:22px}h2{font-size:16px}h3{font-size:14px}button,input,select,textarea{font:inherit;color:inherit}.shell{grid-template-columns:220px 1fr;min-height:100vh;display:grid}.side{background:var(--surface);border-right:1px solid var(--line);flex-direction:column;gap:4px;height:100vh;padding:20px 12px;display:flex;position:sticky;top:0}.brand{align-items:center;gap:8px;padding:4px 10px 18px;font-size:17px;font-weight:700;display:flex}.brand i{background:var(--brand);border-radius:7px;width:26px;height:26px;display:inline-block}.nav{cursor:pointer;text-align:left;color:var(--muted);background:0 0;border:0;border-radius:8px;align-items:center;gap:10px;padding:9px 12px;font-weight:500;display:flex}.nav:hover{background:var(--bg);color:var(--ink)}.nav.on{background:var(--brand-soft);color:var(--brand)}.side .spacer{flex:1}.main{width:100%;max-width:1280px;padding:28px 32px 60px}.head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:22px;display:flex}.head p{color:var(--muted);margin:2px 0 0}.grid{gap:14px;display:grid}.g4{grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}.g2{grid-template-columns:repeat(auto-fit,minmax(380px,1fr))}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px}.card h2{margin-bottom:4px}.card .sub{color:var(--muted);margin:0 0 14px;font-size:13px}.stat .label{color:var(--muted);font-size:13px}.stat .value{letter-spacing:-.5px;margin-top:4px;font-size:28px;font-weight:650}.stat .note{color:var(--muted);margin-top:2px;font-size:12px}.section{margin-top:18px}.btn{border:1px solid var(--line);background:var(--surface);cursor:pointer;border-radius:8px;padding:7px 13px;font-weight:500}.btn:hover{border-color:var(--muted)}.btn.primary{background:var(--brand);border-color:var(--brand);color:var(--brand-ink)}.btn.primary:hover{filter:brightness(1.07)}.btn.danger{color:var(--bad)}.btn.sm{padding:4px 9px;font-size:13px}.btn:disabled{opacity:.55;cursor:not-allowed}.row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.row.between{justify-content:space-between}label.f{gap:4px;font-size:13px;font-weight:500;display:grid}label.f>span small{color:var(--muted);font-weight:400}input[type=text],input[type=password],input[type=number],input[type=tel],select,textarea{background:var(--surface);border:1px solid var(--line);border-radius:8px;width:100%;padding:8px 10px}input:focus,select:focus,textarea:focus{outline:2px solid var(--brand);outline-offset:-1px;border-color:#0000}textarea{resize:vertical;min-height:70px}.form{gap:12px;display:grid}table{border-collapse:collapse;width:100%}th{text-align:left;color:var(--muted);border-bottom:1px solid var(--line);white-space:nowrap;padding:8px 10px;font-size:12px;font-weight:500}td{border-bottom:1px solid var(--line);vertical-align:middle;padding:10px}tr:last-child td{border-bottom:0}.num{text-align:right;font-variant-numeric:tabular-nums}.tablewrap{overflow-x:auto}.pill{background:var(--bg);color:var(--muted);border-radius:99px;padding:2px 9px;font-size:12px;font-weight:500;display:inline-block}.pill.ok{background:var(--ok-soft);color:var(--ok)}.pill.warn{background:var(--warn-soft);color:var(--warn)}.pill.bad{background:var(--bad-soft);color:var(--bad)}.empty{color:var(--muted);text-align:center;padding:28px 12px}.err{color:var(--bad);background:var(--bad-soft);border-radius:8px;padding:8px 12px;font-size:13px}.muted{color:var(--muted)}.tabs{background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:2px;display:inline-flex}.tabs button{cursor:pointer;color:var(--muted);background:0 0;border:0;border-radius:6px;padding:5px 12px}.tabs button.on{background:var(--surface);color:var(--ink);box-shadow:0 1px 2px #00000014}.sessions{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px;display:grid}.qr{background:#fff;border-radius:8px;place-items:center;margin:12px 0;padding:8px;display:grid}.qr img{width:100%;max-width:260px;image-rendering:pixelated}.code{letter-spacing:3px;text-align:center;background:var(--brand-soft);color:var(--brand);border-radius:8px;margin:12px 0;padding:14px;font:600 26px/1 ui-monospace,monospace}.bank{grid-template-columns:250px 250px 1fr;align-items:start;gap:14px;display:grid}.bank>.card:last-child{grid-column:1/-1}.list{gap:2px;display:grid}.item{cursor:pointer;border:1px solid #0000;border-radius:8px;justify-content:space-between;align-items:center;gap:6px;padding:8px 10px;display:flex}.item:hover{background:var(--bg)}.item.on{background:var(--brand-soft);border-color:var(--brand)}.item small{color:var(--muted)}.item .acts{gap:2px;display:none}.item:hover .acts,.item.on .acts{display:flex}.icon{cursor:pointer;color:var(--muted);background:0 0;border:0;border-radius:5px;padding:2px 5px}.icon:hover{color:var(--ink);background:var(--line)}.q{border:1px solid var(--line);border-radius:8px;gap:8px;padding:14px;display:grid}.q+.q{margin-top:10px}.opt{border-radius:6px;align-items:baseline;gap:8px;padding:4px 8px;display:flex}.opt.correct{background:var(--ok-soft);color:var(--ok);font-weight:500}.optrow{grid-template-columns:auto 1fr auto;align-items:center;gap:8px;display:grid}.expl{background:var(--bg);color:var(--muted);border-radius:8px;padding:8px 10px;font-size:13px}.overlay{z-index:20;background:#0a0c108c;place-items:center;padding:16px;display:grid;position:fixed;inset:0}.modal{background:var(--surface);border-radius:12px;width:100%;max-width:560px;max-height:92vh;padding:22px;overflow:auto}.modal h2{margin-bottom:14px;font-size:17px}.login{place-items:center;min-height:100vh;padding:16px;display:grid}.login .card{gap:14px;width:100%;max-width:360px;padding:28px;display:grid}@media (width<=960px){.shell{grid-template-columns:1fr}.side{flex-direction:row;align-items:center;height:auto;padding:8px;position:static;overflow-x:auto}.brand{padding:4px 10px}.side .spacer{display:none}.main{padding:18px 14px 50px}.bank,.g2{grid-template-columns:1fr}}