body {
    min-height: 100vh;
}

.chat-messages {
    height: 65vh;
    overflow: auto;
}

.message {
    padding: .6rem .8rem;
    margin-bottom: .5rem;
    border-radius: .75rem;
    background: #f1f3f5;
}

.message small {
    color: #6c757d;
}