:root{--bg:#f6f7fb;--card:#fff;--ink:#111827;--muted:#6b7280;--line:#e5e7eb;--brand:#4f46e5;--brand-ink:#fff;--red:#dc2626;--green:#059669;--amber:#d97706}@media (prefers-color-scheme:dark){:root{--bg:#0b1020;--card:#131a2e;--ink:#e5e7eb;--muted:#9ca3af;--line:#25304d}}*{box-sizing:border-box}body,html{margin:0;background:var(--bg);color:var(--ink);font:14px/1.45 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}a{color:var(--brand);text-decoration:none}h1{font-size:22px;margin:0 0 4px}h3{margin:0;font-size:15px}.shell{display:grid;grid-template-columns:220px 1fr;min-height:100vh}.side{background:var(--card);border-right:1px solid var(--line);padding:16px 12px;position:-webkit-sticky;position:sticky;top:0;height:100vh;display:flex;flex-direction:column;gap:4px}.brand{font-weight:700;font-size:16px;padding:4px 10px 14px}.side a{padding:8px 10px;border-radius:8px;color:var(--ink)}.side a.on,.side a:hover{background:var(--bg);font-weight:600}.side .spacer{flex:1 1}.who{font-size:12px;color:var(--muted);padding:8px 10px;word-break:break-all}.main{padding:24px;max-width:1200px;width:100%}.sub{color:var(--muted);margin-bottom:18px}.grid{display:grid;grid-gap:14px;gap:14px}.cols-4{grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}.cols-2{grid-template-columns:repeat(auto-fit,minmax(380px,1fr))}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;margin-bottom:14px}.card-h{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;gap:8px}.stat{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px}.stat-label{color:var(--muted);font-size:12px}.stat-value{font-size:24px;font-weight:700;margin-top:2px}.stat-hint{color:var(--muted);font-size:12px}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse}th{text-align:left;font-size:12px;color:var(--muted);font-weight:600;white-space:nowrap}td,th{padding:8px;border-bottom:1px solid var(--line)}td{vertical-align:top}tr:last-child td{border-bottom:0}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;background:var(--bg);color:var(--muted)}.badge.green{background:#d1fae5;color:#065f46}.badge.red{background:#fee2e2;color:#991b1b}.badge.amber{background:#fef3c7;color:#92400e}.badge.blue{background:#dbeafe;color:#1e40af}.btn{border:1px solid var(--line);background:var(--card);color:var(--ink);padding:6px 12px;border-radius:8px;cursor:pointer;font:inherit}.btn:hover:not(:disabled){border-color:var(--brand)}.btn:disabled{opacity:.5;cursor:default}.btn.primary{background:var(--brand);color:var(--brand-ink);border-color:var(--brand)}.btn.danger{color:var(--red)}input,select,textarea{font:inherit;padding:6px 10px;border:1px solid var(--line);border-radius:8px;background:var(--card);color:var(--ink)}textarea{width:100%;min-height:60px;font-family:ui-monospace,monospace;font-size:12px}.row{flex-wrap:wrap;margin-bottom:12px}.pager,.row{display:flex;gap:8px;align-items:center}.pager{justify-content:flex-end;margin-top:10px;color:var(--muted)}.error{background:#fee2e2;color:#991b1b}.error,.ok{padding:8px 12px;border-radius:8px;margin-bottom:12px}.ok{background:#d1fae5;color:#065f46}.empty,.muted{color:var(--muted)}.empty{padding:16px 0;text-align:center}.chart{width:100%;height:auto}.hbars{grid-gap:8px}.hbar,.hbars{display:grid;gap:8px}.hbar{grid-template-columns:150px 1fr 110px;grid-gap:8px;align-items:center}.hbar-label{font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.hbar-track{background:var(--bg)}.hbar-fill,.hbar-track{border-radius:6px;height:10px}.hbar-fill{background:var(--brand)}.hbar-val{font-size:12px;color:var(--muted);text-align:right}.login{max-width:360px;margin:12vh auto}.login .card{display:grid;grid-gap:10px;gap:10px}.login input{width:100%}.opt-correct{color:var(--green);font-weight:600}small{color:var(--muted)}@media (max-width:800px){.shell{grid-template-columns:1fr}.side{position:static;height:auto;flex-direction:row;flex-wrap:wrap}.side .spacer{display:none}}