/* Your existing CSS variables */
        :root {
            --primary-color: #E67E00;
            --primary-dark: #E67E00;
            --primary-light: #FFB733;
            --secondary-color: #1E3A8A;
            --white: #FFFFFF;
            --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            --shadow-strong: 0 15px 40px rgba(0, 0, 0, 0.15);
            --border-radius: 10px;
            --transition: all 0.3s ease;
            --success-color: #10B981;
        }

        /* body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: #f9fafb;
            margin: 0;
            padding: 20px;
            min-height: 100vh;
        } */

        /* Floating WhatsApp Contact Button */
        .whatsapp-contact {
            position: fixed;
            bottom: 90px;
            right: 25px;
            z-index: 1000;
        }

        .whatsapp-btn {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #25D366, #128C7E);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: var(--shadow-strong);
            transition: var(--transition);
            border: none;
            animation: pulse-whatsapp 2s infinite;
            position: relative;
            overflow: hidden;
        }

        .whatsapp-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
            border-radius: 50%;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .whatsapp-btn:hover::before {
            opacity: 1;
        }

        .whatsapp-btn:hover {
            transform: scale(1.1);
            box-shadow: 0 20px 50px rgba(37, 211, 102, 0.3);
        }

        .whatsapp-btn:active {
            transform: scale(0.95);
        }

        .whatsapp-icon {
            width: 32px;
            height: 32px;
            fill: white;
            position: relative;
            z-index: 1;
        }

        /* Tooltip */
        .whatsapp-tooltip {
            position: absolute;
            right: 70px;
            top: 50%;
            transform: translateY(-50%);
            background-color: var(--white);
            color: var(--primary-color);
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            font-size: 0.9rem;
            font-weight: 500;
            white-space: nowrap;
            box-shadow: var(--shadow);
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            pointer-events: none;
        }

        .whatsapp-tooltip::after {
            content: '';
            position: absolute;
            left: 100%;
            top: 50%;
            transform: translateY(-50%);
            border: 8px solid transparent;
            border-left-color: var(--white);
        }

        .whatsapp-contact:hover .whatsapp-tooltip {
            opacity: 1;
            visibility: visible;
            transform: translateY(-50%) translateX(-5px);
        }

        /* Alternative: Header Contact Button */
        .header-contact-btn {
            background: linear-gradient(135deg, #25D366, #128C7E);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: var(--border-radius);
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.95rem;
            box-shadow: var(--shadow);
        }

        .header-contact-btn:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-strong);
            background: linear-gradient(135deg, #128C7E, #25D366);
        }

        .header-contact-btn:active {
            transform: scale(0.95);
        }

        /* Alternative: Card-style Contact Button */
        .contact-card {
            background-color: var(--white);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            padding: 1.5rem;
            margin: 2rem 0;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .contact-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, #25D366, #128C7E);
        }

        .contact-card:hover {
            box-shadow: var(--shadow-strong);
            transform: translateY(-5px);
        }

        .contact-card-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
        }

        .contact-info {
            flex: 1;
        }

        .contact-info h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: #333;
        }

        .contact-info p {
            color: #666;
            font-size: 0.95rem;
        }

        .contact-whatsapp-btn {
            background: linear-gradient(135deg, #25D366, #128C7E);
            color: white;
            border: none;
            padding: 1rem 1.5rem;
            border-radius: var(--border-radius);
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.95rem;
            box-shadow: var(--shadow);
        }

        .contact-whatsapp-btn:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-strong);
        }

        /* Pulse Animation */
        @keyframes pulse-whatsapp {
            0% {
                box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.4);
            }
            70% {
                box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
            }
        }

        /* Demo styles */
        .demo-container {
            max-width: 800px;
            margin: 0 auto;
            padding: 2rem;
        }

        .demo-section {
            margin-bottom: 3rem;
        }

        .demo-section h2 {
            color: #333;
            margin-bottom: 1rem;
            font-size: 1.5rem;
        }

        .demo-section p {
            color: #666;
            margin-bottom: 1.5rem;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .whatsapp-contact {
                bottom: 20px;
                right: 20px;
            }
            
            .whatsapp-btn {
                width: 55px;
                height: 55px;
            }
            
            .whatsapp-icon {
                width: 28px;
                height: 28px;
            }
            
            .contact-card-content {
                flex-direction: column;
                text-align: center;
            }
        }