body {
    font-family: sans-serif;
    margin: 0;
    background-color: #f4f4f4;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

#chat-container {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    width: 90%;
    max-width: 600px;
    display: flex;
    flex-direction: column;
    height: 80vh; /* Altezza limitata per container */
    overflow: hidden; /* Nasconde overflow generale */
}

h1 {
    text-align: center;
    color: #333;
    padding: 15px;
    margin: 0;
    font-size: 1.2em;
    border-bottom: 1px solid #eee;
    background-color: #f9f9f9;
}

#chatbox {
    flex-grow: 1; /* Occupa lo spazio rimanente */
    overflow-y: auto; /* Scroll verticale solo per i messaggi */
    padding: 15px;
    display: flex;
    flex-direction: column;
    gap: 10px; /* Spazio tra messaggi */
}

.message {
    padding: 10px 15px;
    border-radius: 15px;
    max-width: 75%;
    word-wrap: break-word; /* Va a capo se il testo è lungo */
}

.message.user {
    background-color: #dcf8c6;
    align-self: flex-end; /* Messaggi utente a destra */
    border-bottom-right-radius: 5px;
}

.message.ai {
    background-color: #eee;
    align-self: flex-start; /* Messaggi IA a sinistra */
    border-bottom-left-radius: 5px;
}

.message.error {
    background-color: #fdd;
    color: #a00;
    align-self: center;
    max-width: 90%;
    text-align: center;
}

.message .sender {
    font-weight: bold;
    font-size: 0.8em;
    margin-bottom: 3px;
    color: #555;
}


#message-form {
    display: flex;
    padding: 15px;
    border-top: 1px solid #eee;
    background-color: #f9f9f9;
}

#message-input {
    flex-grow: 1;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 20px;
    margin-right: 10px;
}

#send-button {
    padding: 10px 20px;
    border: none;
    background-color: #007bff;
    color: white;
    border-radius: 20px;
    cursor: pointer;
    transition: background-color 0.2s;
}

#send-button:hover {
    background-color: #0056b3;
}

/* Stile per feedback "typing" */
.typing-indicator {
    font-style: italic;
    color: #888;
    align-self: flex-start;
    padding: 5px 15px;
}