/* --- Main Chat Container --- */
#gemini-gpt-chat-container {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    max-width: 700px;
    margin: 2rem auto;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    background-color: #ffffff;
}

/* --- Chat Header --- */
.chat-header {
    background-color: #f7f7f7;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-header h2 {
    margin: 0;
    font-size: 1.2rem;
    color: #333;
}

.header-buttons {
    display: flex;
    gap: 0.5rem;
}

/* --- Chat History/Messages --- */
#gemini-gpt-chat-history {
    flex-grow: 1;
    padding: 1.5rem;
    overflow-y: auto;
    max-height: 500px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.gemini-gpt-message {
    padding: 0.75rem 1rem;
    border-radius: 18px;
    max-width: 80%;
    line-height: 1.5;
}

.gemini-gpt-message.user {
    background-color: #007bff;
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

.gemini-gpt-message.assistant {
    background-color: #f1f1f1;
    color: #333;
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}

/* --- Markdown Rendering Styles --- */
.gemini-gpt-message.assistant p {
    margin: 0 0 0.5rem 0;
}
.gemini-gpt-message.assistant p:last-child {
    margin-bottom: 0;
}
.gemini-gpt-message.assistant ul, .gemini-gpt-message.assistant ol {
    padding-left: 20px;
    margin: 0.5rem 0;
}
.gemini-gpt-message.assistant code {
    background-color: #e0e0e0;
    padding: 2px 5px;
    border-radius: 4px;
    font-family: monospace;
}
.gemini-gpt-message.assistant pre {
    background-color: #e0e0e0;
    padding: 10px;
    border-radius: 4px;
    overflow-x: auto;
}
.gemini-gpt-message.assistant pre code {
    padding: 0;
    background-color: transparent;
}
.gemini-gpt-message.assistant blockquote {
    border-left: 3px solid #ccc;
    padding-left: 10px;
    margin: 0.5rem 0;
    color: #555;
}

/* --- Loading Indicator --- */
#gemini-gpt-loading {
    text-align: center;
    padding: 1rem;
    color: #888;
    font-style: italic;
}

/* --- Chat Input Form --- */
#gemini-gpt-chat-form {
    display: flex;
    padding: 1rem;
    border-top: 1px solid #e0e0e0;
    background-color: #f7f7f7;
}

#gemini-gpt-user-input {
    flex-grow: 1;
    border: 1px solid #ccc;
    border-radius: 20px;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s;
}

#gemini-gpt-user-input:focus {
    border-color: #007bff;
}

#gemini-gpt-send-btn, .chat-control-btn {
    border: none;
    background-color: #007bff;
    color: white;
    border-radius: 20px;
    padding: 0.75rem 1.5rem;
    margin-left: 0.5rem;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.2s;
}

#gemini-gpt-send-btn:hover, .chat-control-btn:hover {
    background-color: #0056b3;
}

.chat-control-btn {
    padding: 0.5rem 1rem;
    border-radius: 8px;
}

/* --- Responsive Design --- */
@media (max-width: 600px) {
    .chat-header {
        flex-direction: column;
        gap: 0.5rem;
    }
    .chat-header h2 {
        font-size: 1rem;
    }
    #gemini-gpt-chat-history {
        padding: 1rem;
    }
    #gemini-gpt-chat-form {
        padding: 0.5rem;
    }
}