.app-main {
    flex-direction: row;
}

#messages { 
    overflow-y:auto; 
    background: #EEE; 
    color: #000;
    font-family: monospace; 
    white-space:pre-wrap; 
    display:flex; 
    flex-direction:column; 
    padding-top: 0; 
    margin-bottom: calc(var(--composer-h) + var(--footer-h));
    box-shadow: inset -10px 5px 20px #DDD;
}
#messages .chat-line:last-child { border-bottom: none; }
#messages-spacer { display:block; width:100%; }
.list-group-item.active { background-color: #0d6fd0; border-color: #0d6fd0; color: #fff; }
.same-time { color: #EEE; }
.chat-line { 
    padding: 0; 
    border: none; 
    margin: 0; 
    line-height: 1.1; 
    font-size: 0.95rem; 
    color: #000;
}
.chat-line a { color: #0d6fd0; text-decoration: underline; word-break: break-all; }

/* Chat messages height aligns with main layout vars */
:root {
    --chat-header-h: 56px;
}

.chat-messages, #messages {
    height: calc(100vh - var(--chat-header-h) - var(--composer-h) - var(--footer-h));
    box-sizing: border-box;
}

/* Composer positioning adapted in +main.css for mobile and desktop */
.chat-composer {
    position: fixed;
    bottom: var(--footer-h);
    right: 0;
    left: calc(var(--sidebar-w) + var(--subnav-w));
    height: var(--composer_h, var(--composer-h));
    padding: .75rem;
    border-top: 1px solid var(--bs-border-color);
    background: var(--bs-body-bg);
    z-index: 1040; /* lower than offcanvas panels */
    display: flex;
    align-items: center;
}

@media (max-width: 991.98px) {
    .chat-composer {
        left: 0;
    }
}