:root{--bg:#f7f7f8;--sidebar-bg:#1f2430;--sidebar-fg:#c4c9d4;--sidebar-active-bg:#2c3244;--card-bg:#fff;--border:#e2e2e6;--text:#1a1a1e;--text-muted:#6b6f76;--accent:#4f7cff;--danger:#d94f4f;--success:#2fa96b}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.centered{justify-content:center;align-items:center;height:100vh;display:flex}.shell{min-height:100vh;display:flex}.sidebar{background:var(--sidebar-bg);width:220px;color:var(--sidebar-fg);flex-direction:column;flex-shrink:0;gap:2px;padding:16px 0;display:flex}.sidebar .brand{color:#fff;padding:0 20px 16px;font-size:15px;font-weight:600}.sidebar button{all:unset;cursor:pointer;padding:10px 20px;font-size:14px}.sidebar button.active{background:var(--sidebar-active-bg);color:#fff}.sidebar button.disabled{opacity:.4;cursor:default}.main{flex-direction:column;flex:1;min-width:0;display:flex}.header{background:var(--card-bg);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:12px 24px;display:flex}.status-dot{color:var(--text-muted);align-items:center;gap:6px;font-size:13px;display:inline-flex}.status-dot .dot{border-radius:50%;width:8px;height:8px}.status-dot .dot.on{background:var(--success)}.status-dot .dot.off{background:var(--danger)}.content{flex:1;padding:24px}.card{background:var(--card-bg);border:1px solid var(--border);border-radius:8px}table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid var(--border);padding:10px 16px;font-size:14px}th{color:var(--text-muted);text-transform:uppercase;font-size:12px;font-weight:500}button.primary{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:6px;padding:8px 16px;font-size:14px}button.secondary{color:var(--text);border:1px solid var(--border);cursor:pointer;background:0 0;border-radius:6px;margin-left:6px;padding:6px 12px;font-size:13px}button.secondary:first-child{margin-left:0}button.danger{color:var(--danger)}button:disabled{opacity:.6;cursor:default}.banner{border-radius:6px;margin-bottom:16px;padding:10px 16px;font-size:14px}.banner.warn{color:#915a00;background:#fff4e5;border:1px solid #f3d9a4}.banner.error{color:#9b2c2c;background:#fdeaea;border:1px solid #f5b8b8}.banner.success{color:#1f7a4d;background:#e9f9f0;border:1px solid #b8ecd0}.modal-backdrop{z-index:10;background:#0006;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal{background:var(--card-bg);border-radius:8px;width:440px;max-width:90vw;max-height:85vh;padding:24px;overflow-y:auto}.field{flex-direction:column;gap:4px;margin-bottom:14px;display:flex}.field label,.field-label-text{color:var(--text-muted);font-size:13px}.field input,.field textarea{border:1px solid var(--border);border-radius:6px;padding:8px 10px;font-family:inherit;font-size:14px}.auth-shell{justify-content:center;align-items:center;height:100vh;display:flex}.auth-card{width:340px;padding:32px}.auth-card h1{margin:0 0 20px;font-size:18px}.form-actions{justify-content:flex-end;gap:8px;margin-top:20px;display:flex}.error-text{color:var(--danger);margin-top:8px;font-size:13px}.header-row{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.muted{color:var(--text-muted);font-size:13px}