body{
font-family: Arial;
margin:0;
background:#f4f4f4;
}

nav{
background:#0a192f;
padding:15px;
}

nav a{
color:white;
margin-right:15px;
text-decoration:none;
}

section{
background:white;
padding:40px;
margin:20px;
border-radius:8px;
}

.chatbot{
position:fixed;
bottom:20px;
right:20px;
background:white;
padding:15px;
width:250px;
border:1px solid #ccc;
}