#onao-chat-button{
position:fixed;
bottom:40px;
right:40px;
width:55px;
height:55px;
display:flex;
align-items:center;
justify-content:center;
cursor:pointer;
z-index:9;
transition:0.3s;
}

#onao-chat-button:hover{
transform:scale(1.05);
}

#onao-chat{
position:fixed;
bottom:120px;
right:30px;
width:380px;
height:600px;
background:#fff;
border-radius:20px;
overflow:hidden;
display:none;
flex-direction:column;
z-index:9;
box-shadow:0 20px 60px rgba(0,0,0,0.25);
font-family:Arial,sans-serif;

/* bloque la propagation du scroll */
overscroll-behavior:none;

/* améliore le tactile mobile */
touch-action:pan-y;
}

#onao-chat-header{
font-family: 'Playfair Display', serif;	
background:#000;
color:#fff;
padding:20px;
font-size:25px;

}

#onao-chat-messages{
flex:1;
overflow-y:auto;
padding:20px;
background:#f8f8f8;

/* empêche le scroll de la page derrière */
overscroll-behavior:contain;

/* iPhone / iPad */
-webkit-overflow-scrolling:touch;
}

.onao-message{
margin-bottom:15px;
padding:14px;
border-radius:14px;
line-height:1.5;
font-size:16px;
}

.onao-ai{
background:#fff;
}

.onao-user{
background:#000;
color:#fff;
margin-left:40px;
}

#onao-chat-input{
display:flex;
border-top:1px solid #ddd;
}

#onao-chat-input textarea{
flex:1;
border:none;
padding:15px;
resize:none;
height:60px;
font-size:16px;
outline:none;
}

#onao-chat-input button{
width:90px;
border:none;
background:#000;
color:#fff;
cursor:pointer;
font-size:16px;
}

@media(max-width:768px){

#onao-chat{
right:10px;
left:10px;
width:auto;
height:70vh;
bottom:100px;
}

#onao-chat-button{
right:15px;
bottom:15px;
}

}