/* Bouton flottant d'ouverture */
#bh-chat-btn{
  position:fixed; right:18px; bottom:18px;
  border:none; border-radius:999px; padding:14px 16px;
  box-shadow:0 8px 24px rgba(0,0,0,.18);
  cursor:pointer; z-index:9999; background:#111; color:#fff;
}

/* Panneau du chat */
#bh-chat-panel{
  position:fixed; right:18px; bottom:78px; width:340px; max-height:62vh;
  background:#fff; border-radius:14px; box-shadow:0 12px 32px rgba(0,0,0,.2);
  display:none; overflow:hidden; z-index:9999;
}

/* En-tête */
#bh-chat-head{
  padding:12px 14px; font-weight:600; border-bottom:1px solid #eee;
  display:flex; align-items:center; gap:8px;
}
#bh-chat-head .bh-beta{ font-size:12px; color:#888 }

/* Corps */
#bh-chat-body{
  padding:12px; height:46vh; overflow:auto; font-size:14px; line-height:1.45; background:#fafafa;
}

.bh-msg{ margin:8px 0; padding:10px 12px; border-radius:10px; max-width:85% }
.bh-msg.user{ background:#e8eef5; margin-left:auto }
.bh-msg.bot{ background:#fff; border:1px solid #eee }

/* Formulaire */
#bh-chat-form{ display:flex; border-top:1px solid #eee; background:#fff }
#bh-chat-input{ flex:1; border:none; padding:12px; font-size:14px }
#bh-chat-send{ border:none; padding:0 12px; cursor:pointer; background:#fff }

/* CTA handover humain */
.bh-cta{ margin-top:8px; font-size:13px }
.bh-cta a{ color:#0a7 }