:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#18212f;background:#f5f7fb}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button{min-height:40px;border:0;border-radius:6px;background:#2563eb;color:#fff;padding:0 16px;cursor:pointer}button:disabled{opacity:.55;cursor:not-allowed}input,textarea,select{width:100%;border:1px solid #cbd5e1;border-radius:6px;padding:10px 12px;background:#fff;color:#18212f}label{display:grid;gap:6px;font-weight:650}h1,h2,p{margin-top:0}table{width:100%;border-collapse:collapse;background:#fff}th,td{padding:12px 14px;border-bottom:1px solid #e2e8f0;text-align:left}th{background:#f8fafc;font-size:13px;color:#475569}.app-shell{min-height:100vh;display:grid;grid-template-columns:240px 1fr}.sidebar{background:#111827;color:#fff;padding:24px 18px}.brand{font-size:22px;font-weight:800}.sidebar-caption{color:#94a3b8;margin-bottom:28px}.sidebar nav{display:grid;gap:8px}.sidebar a{color:#cbd5e1;text-decoration:none;padding:10px 12px;border-radius:6px}.sidebar a.active,.sidebar a:hover{background:#1f2937;color:#fff}.main-panel{min-width:0}.topbar{height:64px;background:#fff;border-bottom:1px solid #e2e8f0;display:flex;align-items:center;justify-content:space-between;padding:0 28px;font-weight:700}.content{padding:28px}.secondary-button{background:#e2e8f0;color:#18212f}.login-page{min-height:100vh;display:grid;place-items:center;padding:24px}.login-panel,.panel-form{display:grid;gap:16px;background:#fff;border:1px solid #e2e8f0;border-radius:8px;padding:22px}.login-panel{width:min(420px,100%)}.narrow-form{max-width:720px}.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(150px,1fr));gap:16px}.metric-card{background:#fff;border:1px solid #e2e8f0;border-radius:8px;padding:18px;display:grid;gap:8px}.metric-card span{color:#64748b}.metric-card strong{font-size:32px}.table-wrap{overflow:auto;border:1px solid #e2e8f0;border-radius:8px}.split-layout{display:grid;grid-template-columns:minmax(320px,460px) 1fr;gap:24px;align-items:start}.list-stack{display:grid;gap:10px}.list-item{background:#fff;border:1px solid #e2e8f0;border-radius:8px;padding:14px;display:grid;gap:6px}.state{background:#fff;border:1px solid #e2e8f0;border-radius:8px;padding:18px}.success-box{background:#ecfdf5;color:#047857;border:1px solid #a7f3d0;border-radius:6px;padding:10px 12px}.error-text{color:#b91c1c}.muted-text,.list-item span{color:#64748b}.selector-label{max-width:720px;margin-bottom:18px}.dashboard-note{margin-top:18px}@media (max-width: 860px){.app-shell{grid-template-columns:1fr}.sidebar{position:static}.metric-grid,.split-layout{grid-template-columns:1fr}}