:root{--bg: #f5f6f8;--card: #ffffff;--border: #e3e6ea;--text: #1f2430;--muted: #6b7280;--accent: #2563eb;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}.app{max-width:1200px;margin:0 auto;padding:24px}.app-header{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap;margin-bottom:24px}.app-header h1{margin:0;font-size:24px}.subtitle{margin:4px 0 0;color:var(--muted);font-size:13px}.header-controls{display:flex;flex-direction:column;align-items:flex-end;gap:8px}.status{font-size:12px;padding:2px 8px;border-radius:999px;border:1px solid var(--border);color:var(--muted);text-transform:capitalize}.status-live{color:#047857;border-color:#a7f3d0;background:#ecfdf5}.status-offline{color:#b91c1c;border-color:#fecaca;background:#fef2f2}.range-picker{display:flex;gap:12px;font-size:13px}.range-picker input{padding:4px 6px;border:1px solid var(--border);border-radius:6px}.grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.panel-wide{grid-column:1 / -1}@media(max-width:880px){.grid{grid-template-columns:1fr}}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;box-shadow:0 1px 2px #0000000a}.card h2{margin:0 0 16px;font-size:16px}.card h3{margin:20px 0 8px;font-size:14px;color:var(--muted)}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.card-header h2{margin:0}.chart{width:100%}.data-table{width:100%;border-collapse:collapse;font-size:13px}.data-table th,.data-table td{text-align:left;padding:6px 8px;border-bottom:1px solid var(--border)}.data-table th.num,.data-table td.num{text-align:right;font-variant-numeric:tabular-nums}details summary{cursor:pointer;color:var(--accent);font-size:13px;margin-top:8px}.back-btn{font-size:15px;font-weight:600;padding:8px 18px;border:none;border-radius:8px;background:var(--accent);color:#fff;cursor:pointer}.back-btn:hover{background:#1d4ed8}.data-table tr.row-link{cursor:pointer}.data-table tr.row-link:hover{background:var(--bg)}.placeholder,.error{color:var(--muted)}.error{color:#b91c1c}.header-status-row{display:flex;align-items:center;gap:8px}.logout-btn{font-size:12px;padding:3px 10px;border:1px solid var(--border);border-radius:999px;background:var(--card);color:var(--muted);cursor:pointer}.logout-btn:hover{color:var(--text);border-color:var(--muted)}.login{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.login-card{width:100%;max-width:360px;display:flex;flex-direction:column;gap:12px}.login-card h1{margin:0;font-size:20px}.login-card .subtitle{margin:0 0 4px}.login-card input{padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px}.login-card button{padding:10px 12px;border:none;border-radius:8px;background:var(--accent);color:#fff;font-size:14px;font-weight:600;cursor:pointer}.login-card button:disabled{opacity:.6;cursor:not-allowed}.login-error{margin:0;color:#b91c1c;font-size:13px}