div.container > main {
    display: flex;
    align-items: center;
    justify-content: center;
}

main .header {
    padding: 1rem;
    font-size: 20px;
    text-align: center;
}

main form {
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

main form div { flex: 3; }

main form textarea {
    width: 100%;
    border-radius: 0.2rem;
    border: 1px solid #efefef;
    padding: 0.25rem 1rem;
    min-width: 50vw;
}

main form button {
    float: right;
    border-radius: 0.2rem;
    border: none;
    padding: 0.25rem 1rem;
    margin-left: 0.5rem;
    font-weight: bold;
}

main div.body {
    display: flex;
    flex-direction: column;
}

div#answer {
    display: flex;
    background-color: #efefef;
    border-radius: 0.5rem;
    padding: 1rem;
    margin-top: 1rem;
    white-space: pre-wrap;
}

.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 2s linear infinite;
    margin: 20px auto;
    display: none;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

html, body {
    height: 100%;
    margin: 0;
}

body {
    display: flex;
    flex-direction: column;
}

div.container {
    flex: 1;
}

footer {
    padding: 1rem;
    width: 100%;
    margin-top: 1em;
    border-top: 1px solid #dee2e6 !important;
}

.error {
    color: white;
    padding: 1rem;
    background-color: red;
    border-radius: 0.5rem;
    margin-top: 1rem;
}

.question_history {
    margin-bottom: 2rem;
}

.question_history .item {
    display: flex;
    align-items: center;
    flex: 1;
    margin: 1em 0;
}

.question_history .item > .chat_bubble, .question_history .item > .chat_bubble_AI {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.question_history .item > .chat_bubble {
    background-color: #009bdb;
    color: #fff;
    margin-right: 0.5rem;
}

.question_history .item > .chat_bubble_AI {
    background-color: #ee3477;
    color: #fff;
    margin-left: 0.5rem;
}

.question_history .item > .question {
    padding: 0.5rem 1rem;
    background-color: #009bdb;
    color: #fff;
    border-radius: 0.2em 0.2em 0.2em 1em;
    flex: 1;
}

.question_history .item > .sql {
    padding: 0.5rem 1rem;
    border: 1px solid #efefef;
    border-radius: 0.2em 0.2em 1em 0.2em;
    flex: 1;
}

.question_history .item > .txtAnswer {
    padding: 0.5rem 1rem;
    background-color: #efefef;
    border-radius: 0.2em 0.2em 1em 0.2em;
    flex: 1;
}