body {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        .login-container {
            max-width: 400px;
            margin: 100px auto;
            background: white;
            border-radius: 15px;
            box-shadow: 0 15px 35px rgba(0,0,0,0.1);
            padding: 40px;
        }
        
        .dashboard-container {
            margin: 20px;
            background: white;
            border-radius: 15px;
            box-shadow: 0 15px 35px rgba(0,0,0,0.1);
            padding: 30px;
        }
        
        .logo {
            text-align: center;
            margin-bottom: 30px;
        }
        
        .logo i {
            font-size: 3rem;
            color: #667eea;
            margin-bottom: 10px;
        }
        
        .logo h2 {
            color: #333;
            font-weight: 600;
            margin: 0;
        }
        
        .btn-primary {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            border: none;
            border-radius: 25px;
            padding: 12px 30px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(102,126,234,0.3);
        }

        .btn-success {
            border-radius: 25px;
            font-weight: 600;
        }
        
        .form-control {
            border-radius: 10px;
            border: 2px solid #e9ecef;
            padding: 12px 15px;
            transition: all 0.3s ease;
        }
        
        .form-control:focus {
            border-color: #667eea;
            box-shadow: 0 0 0 0.2rem rgba(102,126,234,0.25);
        }
        
        .navbar {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        
        .navbar-brand {
            font-weight: 600;
            font-size: 1.5rem;
        }
        
        .table {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
        }
        
        .table thead th {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            font-weight: 600;
            padding: 15px;
        }
        
        .table tbody td {
            padding: 12px 15px;
            vertical-align: middle;
            border-bottom: 1px solid #f8f9fa;
        }
        
        .table tbody tr:hover {
            background-color: #f8f9fa;
            transition: all 0.3s ease;
            cursor: pointer;
        }
        
        .status-badge {
            padding: 6px 12px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            text-transform: uppercase;
        }
        
        .status-normal {
            background-color: #d4edda;
            color: #155724;
        }
        
        .status-warning {
            background-color: #fff3cd;
            color: #856404;
        }
        
        .status-critical {
            background-color: #f8d7da;
            color: #721c24;
        }
        
        .pump-type-badge {
            background-color: #e3f2fd;
            color: #1565c0;
            padding: 4px 8px;
            border-radius: 15px;
            font-size: 0.8rem;
            font-weight: 500;
        }
        
        .loading {
            text-align: center;
            padding: 50px;
        }
        
        .loading i {
            font-size: 3rem;
            color: #667eea;
            animation: spin 1s linear infinite;
        }
        
        @keyframes spin {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }
        
        .alert {
            border-radius: 10px;
            border: none;
            padding: 15px 20px;
        }
        
        .stats-card {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border-radius: 15px;
            padding: 20px;
            margin-bottom: 20px;
            text-align: center;
        }
        
        .stats-card h3 {
            margin: 0;
            font-size: 2rem;
            font-weight: 700;
        }
        
        .stats-card p {
            margin: 5px 0 0 0;
            opacity: 0.9;
        }
        
        #loginPage {
            display: block;
        }
        
        #dashboardPage {
            display: none;
        }
        
        .hidden {
            display: none !important;
        }
        
        @media (max-width: 768px) {
            .table-responsive {
                font-size: 0.85rem;
            }
            
            .login-container {
                margin: 50px 20px;
                padding: 30px 20px;
            }
            
            .dashboard-container {
                margin: 10px;
                padding: 20px;
            }
        }