:root {
            --whatsapp-green: #25D366;
            --whatsapp-dark-green: #128C7E;
            --whatsapp-light: #dcf8c6;
            --error-red: #ff4d4d;
            --card-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
            --transition: all 0.3s ease;
        }
        .card_qr {
            display: flex;
            flex-direction: column;
            border-radius: 20px;
            padding: 25px;
            box-shadow: var(--card-shadow);
            align-items: center;
            gap: 10px;
            max-width: 400px;
            width: 100%;
        }
        
        .whatsapp-header {
            display: flex;
            align-items: center;
            gap: 5px;
            width: 100%;
            justify-content: center;
        }
        
        .whatsapp-icon {
            width: 40px;
            height: 40px;
        }
        
        .whatsapp-title {
            font-size: 18px;
            font-weight: bold;
         }
        
        .qr-code {
            margin: auto;
            border-radius: 15px;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 230px;
            margin-top: 10px;
            margin-bottom: 10px;
            border: 1px solid rgba(0, 0, 0, 0.1);
         }
        
        .qr-code img {
            width: 224px;
            height: auto;
            border-radius: 10px;
         }
        .preloader-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            width: 100%;
            height: 100%;
        }
        
        .preloader {
            width: 60px;
            height: 60px;
            border: 5px solid #f3f3f3;
            border-top: 5px solid #25D366;
            border-radius: 50%;
            animation: spin 1s linear infinite;
            margin-bottom: 15px;
        }
        
        .preloader-text {
            font-size: 14px;
            color: #666;
            text-align: center;
        }
        .status-section {
            display: flex;
            flex-direction: column;
            align-items: center;
            width: 100%;
            gap: 15px;
            margin-top: 10px;
        }
        
        .status-row {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 10px;
            width: 100%;
        }
        
        .status-label {
            font-size: 18px;
            font-weight: 600;
            color: #4a4a4a;
        }
        
        .status-container {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 5px 2px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
        }
        
        .status-connected {
            background: #e3f2ed;
            color: #128C7E;
        }
        
        .status-disconnected {
            background: #ffebee;
            color: var(--error-red);
        }
        
        .status-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            margin-right: 8px;
        }
        
        .connected-dot {
            background: #128C7E;
            animation: pulse 2s infinite;
        }
        
        .disconnected-dot {
            background: var(--error-red);
        }
        
        .message {
            font-size: 16px;
            text-align: center;
            line-height: 1.5;
            padding: 0 15px;
            margin-top: 10px;
            font-weight: bold;
        }
        
        @keyframes pulse {
            0% { opacity: 1; }
            50% { opacity: 0.5; }
            100% { opacity: 1; }
        }
        
        @media (max-width: 480px) {
            .card {
                padding: 20px;
            }
            
            .whatsapp-title {
                font-size: 20px;
            }
            
            .qr-code img {
                width: 180px;
            }
            
            .status-label {
                font-size: 16px;
            }
        }