.whatsapp-btn {
    position: fixed;
    bottom: 20px;
    left: 20px;
    background-color: #25D366;
    color: white;
    border-radius: 30px;
    padding: 10px 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    transition: all 0.3s ease;
    text-decoration: none;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-weight: bold;
}

.whatsapp-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.4);
}

.whatsapp-icon {
    width: 24px;
    height: 24px;
    margin-left: 8px;
}

.whatsapp-text {
    color: white;
    font-size: 16px;
    margin-right: 5px;
}

@media (max-width: 768px) {
    .whatsapp-btn {
        padding: 8px 16px;
        bottom: 15px;
        left: 15px;
    }
    
    .whatsapp-icon {
        width: 20px;
        height: 20px;
        margin-left: 6px;
    }
    
    .whatsapp-text {
        font-size: 14px;
    }
}