*{box-sizing:border-box;margin:0;padding:0}body{font-family:system-ui,-apple-system,sans-serif;background:#0f172a;color:#e2e8f0}a{color:#93c5fd;text-decoration:none}.layout{display:flex;min-height:100vh}.sidebar{width:240px;background:#111827;border-right:1px solid #1f2937;display:flex;flex-direction:column;min-height:100vh}.sidebar-brand{padding:20px;font-weight:700;font-size:18px;color:#f8fafc}.sidebar-links{flex:1;padding:8px 0}.sidebar a{display:block;padding:12px 20px;color:#94a3b8}.sidebar a.active,.sidebar a:hover{background:#1f2937;color:#f8fafc}.sidebar-footer{padding:16px 20px 20px;border-top:1px solid #1f2937}.sidebar-user{font-size:13px;color:#cbd5e1;margin-bottom:8px}.main{flex:1;padding:24px;background:linear-gradient(180deg,#0f172a,#111827)}.page-title{font-size:28px;margin-bottom:20px;color:#f8fafc}.page-muted{color:#94a3b8}.card{background:#1e293b;border:1px solid #334155;border-radius:14px;padding:20px;box-shadow:0 10px 30px #0000002e}.card-title{font-size:18px;margin-bottom:16px;color:#f8fafc}table{width:100%;border-collapse:collapse}th,td{padding:12px;text-align:left;border-bottom:1px solid #334155}th{color:#94a3b8;font-size:13px;font-weight:600}td{color:#e2e8f0}.empty-cell{text-align:center;color:#94a3b8;padding:24px}.subtle{color:#94a3b8;font-size:12px}.btn{padding:8px 14px;border:none;border-radius:8px;cursor:pointer;font-size:14px}.btn-primary{background:#2563eb;color:#fff}.btn-secondary{background:#334155;color:#f8fafc}.btn-danger{background:#dc2626;color:#fff}.btn-ghost{background:transparent;color:#cbd5e1;border:1px solid #334155}.btn-block{width:100%}.input{width:100%;padding:10px 12px;border-radius:8px;border:1px solid #334155;background:#0f172a;color:#f8fafc}.input-sm{width:auto;min-width:140px}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}.field span{font-size:13px;color:#94a3b8}.checkbox-field{flex-direction:row;align-items:center}.toolbar{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:16px;align-items:center}.chip-group{display:flex;gap:8px;flex-wrap:wrap}.chip{padding:8px 12px;border-radius:999px;border:1px solid #334155;background:#1e293b;color:#cbd5e1;cursor:pointer}.chip-active{background:#2563eb;border-color:#2563eb;color:#fff}.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;line-height:1.4;white-space:nowrap;vertical-align:middle}.badge-green{background:#22c55e26;color:#4ade80}.badge-yellow{background:#eab30826;color:#facc15}.badge-red{background:#ef444426;color:#f87171}.btn-sm{padding:5px 10px;font-size:12px;border-radius:6px;white-space:nowrap}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:20px}.stat-grid-compact{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.stat-card{border-radius:14px;padding:18px;border:1px solid #334155;background:#1e293b}.stat-value{font-size:28px;font-weight:700;color:#f8fafc}.stat-label{font-size:13px;color:#94a3b8;margin-top:6px}.stat-blue{border-color:#3b82f659}.stat-green{border-color:#22c55e59}.stat-purple{border-color:#a855f759}.stat-orange{border-color:#f9731659}.stat-slate{border-color:#94a3b859}.alert{padding:12px 14px;border-radius:10px;margin-bottom:16px}.alert-error{background:#ef44441f;color:#fca5a5}.alert-success{background:#22c55e1f;color:#86efac}.actions{display:flex;gap:6px;flex-wrap:nowrap;align-items:center}.users-table{min-width:1080px}.users-table th,.users-table td{vertical-align:middle;padding:10px 12px}.users-table th:nth-child(5),.users-table td:nth-child(5),.users-table th:nth-child(7),.users-table td:nth-child(7){text-align:center;white-space:nowrap}.users-table th:nth-child(6),.users-table td:nth-child(6),.users-table th:nth-child(8),.users-table td:nth-child(8){white-space:nowrap;font-variant-numeric:tabular-nums;color:#cbd5e1;font-size:13px}.users-table .cell-sub{margin-top:2px;line-height:1.35}.users-table .actions{min-width:210px}.mono-cell{font-variant-numeric:tabular-nums;letter-spacing:.02em;white-space:nowrap}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172ab8;display:flex;align-items:center;justify-content:center;padding:20px;z-index:50}.modal{width:min(480px,100%)}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:8px}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(180deg,#0f172a,#111827);padding:20px}.login-card{width:min(400px,100%)}.login-link{display:block;margin-top:14px;text-align:center;font-size:13px}.login-api-hint{margin-top:12px;text-align:center;word-break:break-all}.form-grid{display:grid;gap:12px;margin-bottom:20px}.page-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:20px}.page-heading .page-title{margin-bottom:4px}.table-scroll{overflow-x:auto}.question-stem{min-width:280px;max-width:520px;line-height:1.5}.question-modal{width:min(760px,100%);max-height:92vh;overflow-y:auto}.question-form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.textarea{min-height:88px;resize:vertical;font-family:inherit}@media(max-width:720px){.question-form-grid{grid-template-columns:1fr}.page-heading{flex-direction:column}}code{background:#0f172a;padding:2px 6px;border-radius:6px}