.rag-chat { max-width: 760px; margin: 1rem auto; font: 16px/1.45 system-ui, Arial; }
.rag-chat-window { border: 1px solid #ddd; border-radius: 8px; padding: 12px; height: 420px; overflow-y: auto; background: #fff; }
.msg { margin: 8px 0; padding: 10px 12px; border-radius: 12px; }
.msg.user { background: #eef6ff; }
.msg.assistant { background: #f6f6f6; }
.rag-chat-form { display: flex; gap: 8px; margin-top: 8px; }
#rag-user-input {
    flex: 1;
    padding: 10px;
    border-radius: 8px;
    border: 1px solid #ccc;
    background: #eef6ff;   /* azzurro pallido */
}



#rag-send-btn { padding: 10px 16px; border: 0; border-radius: 8px; background: #2d6cdf; color: #fff; cursor: pointer; }
#rag-send-btn:hover { filter: brightness(1.05); }