/* Reset styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.chat-container {
    width: 100%;
    height: 100%;
    background: #ffffff;
    border-radius: 15px;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/*.chat-header {*/
/*    background-color: #0078ff;*/
/*    color: white;*/
/*    text-align: center;*/
/*    padding: 15px;*/
/*    font-size: 18px;*/
/*    font-weight: bold;*/
/*}*/

.chat-box {
    flex: 1;
    padding: 15px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.message {
    max-width: 90%;
    padding: 10px;
    border-radius: 10px;
    font-size: 14px;
    word-wrap: break-word;
}

.message.user {
    align-self: flex-end;
    background-color: #0078ff;
    color: white;
    border-bottom-right-radius: 0;
}

.message.gpt {
    align-self: flex-start;
    background-color: #f0f0f0;
    color: #333;
    border-bottom-left-radius: 0;
}

.chat-input-container {
    display: flex;
    padding: 10px;
    border-top: 1px solid #ddd;
    background-color: #ffffff;
}

textarea {
    flex: 1;
    resize: none;
    border: 1px solid #ccc;
    border-radius: 20px;
    padding: 10px;
    font-size: 14px;
    outline: none;
}

.chat-box {
    flex: 1;
    padding: 15px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
    scroll-behavior: smooth;  /* Cuộn mềm mại */
}

#send-button {
    width: 40px;
    height: 40px;
    margin-left: 10px;
    border: none;
    background-color: #0078ff;
    color: white;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background-color 0.3s;
}

#send-button:hover {
    background-color: #005bb5;
}