#compose_buttons {
    text-align: right;
    display: flex;
    column-gap: 4px;
    flex-direction: row;
    align-items: center;

    .new_message_button {
        .button.small {
            font-size: 1em;
            padding: 3px 10px;
            vertical-align: middle;
        }

        .compose_mobile_button {
            & span {
                font-size: 1.2em !important;
                font-weight: 400;
                line-height: 1em;
            }
        }
    }

    .reply_button_container {
        display: flex;
        flex-grow: 1;

        /* Adjust flexbox default `min-width` to allow smaller container sizes. */
        min-width: 0;

        /* Button-like styling */
        border-radius: 4px;
        background-color: var(
            --color-compose-collapsed-reply-button-area-background
        );
        border: 1px solid
            var(--color-compose-collapsed-reply-button-area-border);
        transition: all 0.2s ease;

        &:hover,
        &:focus {
            background-color: var(
                --color-compose-collapsed-reply-button-area-background-interactive
            );
            border-color: var(
                --color-compose-collapsed-reply-button-area-border-interactive
            );
        }

        #left_bar_compose_reply_button_big,
        #new_conversation_button {
            /* Remove the border inherited from `.button` styles. */
            border: none;
            background: var(--color-compose-embedded-button-background);
            border-radius: 3px;
        }

        #left_bar_compose_reply_button_big {
            flex-grow: 1;
            text-align: left;
            overflow: hidden;
            white-space: nowrap;
            text-overflow: ellipsis;
        }

        #new_conversation_button {
            /* Remove the  `padding` to prevent margin from affecting parent height. */
            padding: 0 10px;
            /* Removing the `min-width` inherited from the `.button` styles. */
            min-width: inherit;
            margin: 1px;
            flex-shrink: 0;

            transition: background-color 0.2s ease;

            color: var(--color-compose-embedded-button-text-color);

            &:hover {
                background-color: var(
                    --color-compose-embedded-button-background-hover
                );
                color: var(--color-compose-embedded-button-text-color-hover);
            }
        }
    }

    .mobile_button_container {
        @media (width >= $sm_min) {
            display: none;
        }
    }

    #new_conversation_button,
    .new_direct_message_button_container {
        flex-shrink: 0;

        @media (width < $sm_min) {
            /* Override inline style injected by jQuery hide() */
            display: none !important;
        }
    }
}

/* Main geometry for this element is in zulip.css */
#compose-content {
    background-color: hsl(232deg 30% 92%);
    transition: background-color 200ms linear;
    padding: 4px 4px 8px;
    border: 1px solid hsl(0deg 0% 0% / 10%);
    border-radius: 9px 9px 0 0;
    box-shadow: 0 0 0 hsl(236deg 11% 28%);
    height: 100%;
    display: flex;
    flex-flow: column;
    box-sizing: border-box;
}

.message_comp {
    display: none;
    padding: 5px 10px 0 5px;

    #compose_banners {
        max-height: min(25vh, 240px);
        overflow-y: auto;
    }
}

.autocomplete_secondary {
    opacity: 0.8;
    font-size: 85%;
}

.active .autocomplete_secondary {
    opacity: 1;
}

.compose_table {
    height: 100%;
    display: flex;
    flex-flow: column;

    .stream-selection-header-colorblock {
        box-shadow: none;
        border: 1px solid hsl(0deg 0% 80%);
        border-right: none;

        &.message_header_private_message {
            border-radius: 3px 0 0 3px;
            border-bottom: 0;
            background-color: hsl(0deg 0% 27%);
        }
    }

    #compose-recipient {
        &.compose-recipient-direct-selected {
            #compose_select_recipient_widget {
                border-radius: 4px !important;
            }

            .stream_header_colorblock {
                display: none;
            }
        }

        .topic-marker-container {
            /* Ensure the marker ( < ) stays centered vertically
              with the dropdown, even when adjacent stacking pills
              in, e.g., a group DM. */
            display: flex;
            align-items: center;
            /* Ensure horizontal centering, too. */
            justify-content: center;
            /* Disallow shrinking or growth, which can cause
               little layout shifts with pills. */
            flex: 0 0 auto;
            height: var(--compose-recipient-box-min-height);
            /* Round up natural width to next whole pixel. */
            width: 23px;

            .fa-angle-right {
                font-size: 0.9em;
                -webkit-text-stroke: 0.05em;
                align-self: center;
                margin: 0 5px;
            }
        }

        & a.narrow_to_compose_recipients {
            background: transparent;
            font-size: 18px;
            padding: 0 1px;
            align-self: center;
            line-height: 20px;
            opacity: 0.7;
            border: 0;
            margin-left: 3px;
            text-decoration: none;
            color: inherit;

            &:hover {
                opacity: 1;
            }
        }
    }

    #compose-direct-recipient {
        flex-grow: 1;
    }

    .message_header {
        background: none;
        background-color: hsl(0deg 0% 92%);
        border: none;
        border-radius: 0;
        box-shadow: none !important;
    }

    .messagebox {
        box-shadow: none !important;
    }
}

#send_message_form {
    margin: 0;
    height: 100%;

    .messagebox-wrapper {
        flex: 1;
    }

    .messagebox {
        /* normally 5px 14px; pull in the right and bottom a bit */
        cursor: default;
        padding: 0;
        background: none;
        box-shadow: none;
        border: none;
        height: 100%;
        display: grid;
        /* Vlad's design calls for 122px for the send column
           at its widest; 112px accounts for 6px of gap and
           4px outside padding.

           TODO: get this value into a CSS variable. */
        grid-template: minmax(0, 1fr) 32px / minmax(0, 1fr) 112px;
        grid-template-areas:
            "compose-textarea message-send-controls-container"
            "message-formatting-controls-container . ";
        grid-gap: 6px;

        @media ((width >= $sm_min) and (width < $mc_min)) {
            /* Drop to a 62px wide send column. */
            grid-template-columns: minmax(0, 1fr) 62px;
        }

        @media (width < $sm_min) {
            /* Drop to a 28px wide send column. */
            grid-template-columns: minmax(0, 1fr) 28px;
        }
    }

    .message_content {
        margin-right: 0;
    }
}

#compose-textarea,
#preview-message-area-container {
    grid-area: compose-textarea;
    /* When the compose box is full screen, this
       auto height will kick in and make sure that
       the textarea opens to fill its whole grid
       area. */
    height: auto;
}

#preview-message-area-container {
    /* Keep preview container invisible outside
       of preview mode. */
    display: none;
}

#message-send-controls-container {
    grid-area: message-send-controls-container;
    /* A columnar flex does a nice job here
       holding Drafts to the top of the
       container, and the send button to
       the bottom--even as the compose box
       expands or contracts. */
    display: flex;
    flex-direction: column;
    /* We add 6px of margin to the grid-gap of
       6px, for 12px of space between the Send
       button and the textarea. */
    margin-left: 6px;

    @media (width < $sm_min), ((width >= $sm_min) and (width < $mc_min)) {
        margin-left: 0;
    }
}

#message-formatting-controls-container {
    grid-area: message-formatting-controls-container;
}

#compose-limit-indicator {
    font-size: 12px;
    color: hsl(39deg 100% 50%);

    /* Keep the limit indicator
       just above the send button */
    margin-top: auto;

    &.over_limit {
        color: hsl(0deg 76% 65%);
        font-weight: bold;
    }
}

#compose {
    position: fixed;
    bottom: 0;
    left: 0;
    z-index: 4;
}

#compose-container {
    display: flex;
    flex-direction: column;
    width: 100%;
    margin: auto;
}

#compose_top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    /* Matched to 6px grid-gap on .messagebox grid. */
    padding-bottom: 6px;
}

#compose_top_right {
    display: flex;
    align-items: center;
    height: var(--compose-recipient-box-min-height);
    /* Align to compose controls; that's 112px width,
       minus 23px for the narrow indicator, but then
       add back 6px of grid gap for 95px here.

       TODO: Make variables here; expanded use of grid
       on the compose box will make these unnecessary,
       eventually. */
    width: calc(112px - 23px + 6px);
    justify-content: flex-end;

    @media ((width >= $sm_min) and (width < $mc_min)) {
        /* Align to compose controls at narrower widths */
        width: calc(62px - 23px + 6px);
    }

    @media (width < $sm_min) {
        /* Don't attempt to control the width
           at narrowest widths. */
        width: auto;
    }

    & button {
        background: transparent;
        color: inherit;
        font-size: 15px;
        font-weight: normal;
        line-height: 20px;
        opacity: 0.7;
        border: 0;
        padding: 0;
        margin-left: 4px;
        vertical-align: unset;
        text-shadow: none;

        &:hover {
            opacity: 1;
        }
    }
}

.collapse_composebox_button,
#compose_close {
    display: none;
}

.main-view-banner {
    margin-bottom: 20px;
    border-radius: 5px;
    border: 1px solid;
    display: flex;
    align-items: center;
    font-size: 15px;
    line-height: 18px;

    .main-view-banner-elements-wrapper {
        display: flex;
        align-items: center;
        /* Allow this flex container to grow or
           shrink to fit the outer container. */
        flex: 1 1 auto;
        /* Allow items to wrap; this supports an
           intrinsic layout for banner text and
           buttons, which will always occupy the
           space available, without our having
           to fiddle with tons of media queries. */
        flex-wrap: wrap;
    }

    & .banner_content {
        /* Override Bootstrap when .banner_content is
           a paragraph element. */
        margin: 0;
        /* 5px right padding + 10px left-margin of the neighbouring button will match the left padding */
        padding: 8px 5px 8px 15px;
        /* The banner text uses a flex-basis of 150px,
           which is roughly the width at which banner
           text lines are still comfortably readable.
           Still, it can grow and shrink as needed. */
        flex: 1 1 150px;

        & .banner_message {
            /* Override Bootstrap when .banner_content
               contains an inner .banner_message
               paragraph. */
            margin: 0;
        }
    }

    .main-view-banner-action-button,
    .upload_banner_cancel_button {
        border: none;
        border-radius: 4px;
        padding: 5px 10px;
        font-weight: 600;
        margin-top: 4.5px;
        margin-bottom: 4.5px;
        /* Buttons take a minimum height for
           when their text fits on a single
           line. */
        min-height: 32px;
        /* When we're larger than large mobile
           scales ($ml_min), flex the button to
           its max-content, i.e., all its text
           on a single line. But do not grow in
           order to avoid awkward, oversized
           buttons within the flex group. */
        flex: 0 1 max-content;
        /* Use this margin-left hack to keep
           the button to the righthand side of
           the banner. */
        margin-left: auto;

        @media (width < $ml_min) {
            /* When we're smaller than large mobile
               scales, we allow the button to grow,
               so that it can span the full width of
               narrow, mobile-scale banners as it
               wraps onto a second line.

               We also allow the button to shrink,
               so that, for example, the text can
               wrap on the schedule-message button
               that appears when undoing a scheduled
               message. */
            flex: 1 1 max-content;
            /* Use a 10px left margin to keep the
               button away from the edge of the
               banner box to match the banner text;
               we need this only at small scales,
               when the button grows to the full
               width of the flex container. */
            margin-left: 10px;
        }
        /* Extra margin to ensure the layout is identical when there is no
           close button. */
        &.right_edge {
            margin-right: 10px;
        }
    }

    .main-view-banner-action-button {
        /* Establish a uniform top and bottom
           space around the button, which also
           works with the space around the message
           text. */
        margin-top: 8px;
        margin-bottom: 8px;
        /* Make as tall as two lines of banner message
           text, which have a line-height of 18px, but
           no more. */
        max-height: 36px;
        /* Keep to the top of the box, but stretch
           taller based on how the box is flexing. */
        min-height: 0;
        align-self: stretch;
    }

    .main-view-banner-close-button {
        font-size: 16px;
        text-decoration: none;
        padding: 0 8px;
        /* Let the close button's box stretch,
           but no larger than the height of the
           banner box when the action button
           achieves its full height (margin,
           padding, and height), which keeps
           the X vertically centered with it. */
        align-self: stretch;
        max-height: 52px;
        /* Display as flexbox to better control
           the X icon's position. This creates
           an anonymous flexbox item out of the
           ::before content where the icon sits. */
        display: flex;
        align-items: center;
    }

    .banner_content + .main-view-banner-close-button {
        /* When there's no action button, set the max
           height for the typical height of the box
           when it contains only banner message text.
           This will keep the action button aligned
           with the first or only line of text. */
        max-height: 34px;
    }

    &.success {
        background-color: hsl(147deg 43% 92%);
        border: 1px solid hsl(147deg 57% 25% / 40%);
        color: hsl(147deg 57% 25%);

        .main-view-banner-close-button {
            color: hsl(147deg 57% 25% / 50%);

            &:hover {
                color: hsl(147deg 57% 25%);
            }

            &:active {
                color: hsl(147deg 57% 25% / 75%);
            }
        }

        .main-view-banner-action-button {
            background-color: hsl(147deg 57% 25% / 10%);
            color: inherit;

            &:hover {
                background-color: hsl(147deg 57% 25% / 12%);
            }

            &:active {
                background-color: hsl(147deg 57% 25% / 15%);
            }
        }
    }

    /* warning and warning-style classes have the same CSS; this is since
    the warning class has some associated javascript which we do not want
    for some of the banners, for which we use the warning-style class. */
    &.warning,
    &.warning-style {
        background-color: hsl(50deg 75% 92%);
        border-color: hsl(38deg 44% 27% / 40%);
        color: hsl(38deg 44% 27%);

        .main-view-banner-close-button {
            color: hsl(38deg 44% 27% / 50%);

            &:hover {
                color: hsl(38deg 44% 27%);
            }

            &:active {
                color: hsl(38deg 44% 27% / 75%);
            }
        }

        .main-view-banner-action-button {
            background-color: hsl(38deg 44% 27% / 10%);
            color: inherit;

            &:hover {
                background-color: hsl(38deg 44% 27% / 12%);
            }

            &:active {
                background-color: hsl(38deg 44% 27% / 15%);
            }
        }
    }

    &.error {
        background-color: hsl(4deg 35% 90%);
        border-color: hsl(3deg 57% 33% / 40%);
        color: hsl(4deg 58% 33%);

        .main-view-banner-close-button {
            color: hsl(4deg 58% 33% / 50%);

            &:hover {
                color: hsl(4deg 58% 33%);
            }

            &:active {
                color: hsl(4deg 58% 33% / 75%);
            }
        }

        .main-view-banner-action-button {
            background-color: hsl(3deg 57% 33% / 10%);
            color: inherit;

            &:hover {
                background-color: hsl(3deg 57% 33% / 12%);
            }

            &:active {
                background-color: hsl(3deg 57% 33% / 15%);
            }
        }
    }

    &.info {
        background-color: hsl(204deg 58% 92%);
        border-color: hsl(204deg 49% 29% / 40%);
        position: relative;
        color: hsl(204deg 49% 29%);

        .main-view-banner-close-button {
            color: hsl(204deg 49% 29% / 50%);

            &:hover {
                color: hsl(204deg 49% 29%);
            }

            &:active {
                color: hsl(204deg 49% 29% / 75%);
            }
        }

        .main-view-banner-action-button,
        .upload_banner_cancel_button {
            background-color: hsl(204deg 49% 29% / 10%);
            color: inherit;

            &:hover {
                background-color: hsl(204deg 49% 29% / 12%);
            }

            &:active {
                background-color: hsl(204deg 49% 29% / 15%);
            }
        }
    }
}

.upload_banner {
    overflow: hidden;

    &.hidden {
        display: none;
    }

    .moving_bar {
        position: absolute;
        width: 0;
        /* The progress updates seem to come every second or so,
        so this is the smoothest it can probably get. */
        transition: width 1s ease-in-out;
        background: hsl(204deg 63% 85%);
        top: 0;
        bottom: 0;
    }

    /* Keep these elements visible above the
       .moving_bar element on file uploads. */
    .upload_msg,
    .main-view-banner-close-button,
    .upload_banner_cancel_button {
        z-index: 1;
        position: relative;
    }
}

.composition-area {
    position: relative;
    flex: 1;
}

@keyframes message-limit-flash {
    0% {
        box-shadow: none;
    }

    100% {
        box-shadow: 0 0 0 1pt hsl(0deg 76% 65%);
    }
}

textarea.new_message_textarea {
    display: table-cell;
    width: calc(100% - 12px);
    padding: 5px;
    height: 1.5em;
    max-height: 22em;
    margin-bottom: 0;
    resize: vertical !important;
    margin-top: 5px;
    border-radius: 4px;
    color: hsl(0deg 0% 33%);
    background-color: hsl(0deg 0% 100%);

    &.over_limit,
    &.over_limit:focus {
        box-shadow: 0 0 0 1pt hsl(0deg 76% 65%);

        &.flash {
            animation: message-limit-flash 0.5s ease-in-out infinite;
        }
    }

    &:read-only,
    &:disabled {
        cursor: not-allowed;
        background-color: hsl(0deg 0% 93%);
    }

    &.invalid,
    &.invalid:focus {
        border: 1px solid hsl(3deg 57% 33%);
        box-shadow: 0 0 2px hsl(3deg 57% 33%);
    }
}

textarea.new_message_textarea,
#compose_recipient_box {
    border: 1px solid hsl(0deg 0% 0% / 20%);
    box-shadow: none;
    transition: border 0.2s ease;
    color: var(--color-text-default);

    &:focus {
        outline: 0;
        border: 1px solid hsl(0deg 0% 67%);
        box-shadow: none;
    }
}

#compose_recipient_box {
    display: flex;
    flex: 1 1 0;
    border-radius: 3px;
    background: hsl(0deg 0% 100%);

    /* Give the recipient box, a `<div>`, the
       correct styles when focus is in the
       #stream_message_recipient_topic `<input>` */
    &:focus-within {
        outline: 0;
        border: 1px solid hsl(0deg 0% 67%);
        box-shadow: none;
    }

    #stream_message_recipient_topic,
    #recipient_box_clear_topic_button {
        background: none;
        border: none;
    }

    /* Styles for input in the recipient_box */
    #stream_message_recipient_topic {
        /* Override inherited widths; flexbox will ensure
           that it grows to fit. */
        width: 0;
        flex: 1 1 0;

        /* Override flexbox's effective `max-content` min-width */
        overflow: hidden;
        text-overflow: ellipsis;

        box-shadow: none;
        outline: none;

        padding: 4px 6px;
    }

    /* Styles for new conversation button in the recipient_box */
    #recipient_box_clear_topic_button {
        /* Set the border radius smaller, relative to the parent */
        border-radius: 2px;
        padding: 6px;
        margin: 1px;
        color: var(--color-compose-embedded-button-text-color);

        .zulip-icon {
            display: block;
        }

        &:hover {
            background-color: var(
                --color-compose-embedded-button-background-hover
            );
            color: var(--color-compose-embedded-button-text-color-hover);
        }

        &:focus {
            outline: 0;
        }
    }

    /* This will reset the bootstrap margin-bottom: 10px value for the inputs */
    & input {
        margin-bottom: 0;
    }
}

#compose_select_recipient_widget {
    border-radius: 0 4px 4px 0;
    width: auto;
    outline: none;

    &.dropdown-widget-button {
        padding: 0 6px;
    }
}

#private_message_recipient.recipient_box {
    width: 100%;
}

.compose-send-or-save-button {
    border-radius: 4px;
    border: 0;
    margin-bottom: 0;
    color: var(--color-compose-send-button-icon-color);
    background-color: var(--color-compose-send-button-background);

    &:active {
        transition: all 80ms;
        transform: scale(0.96);
    }

    &:focus {
        outline: 0;
    }

    &:focus-visible {
        border: 1px solid var(--color-compose-send-button-focus-border);
        box-shadow: 0 0 5px var(--color-compose-send-button-focus-shadow);
        background-color: var(
            --color-compose-send-button-background-interactive
        );
    }

    &:hover {
        background-color: var(
            --color-compose-send-button-background-interactive
        );
    }
}

#compose-send-button {
    width: 74px;
    height: 28px;
    /* Allow to grow but not shrink */
    flex: 1 0 auto;
    /* Override inherited styles
       so that flexbox can do the
       job of positioning the icon. */
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    /* Flex items respect z-index values;
       this is needed to keep the send
       button over top of the vdots
       background */
    z-index: 1;

    @media (width < $sm_min), ((width >= $sm_min) and (width < $mc_min)) {
        /* Drop to a square button,
           and don't flex any wider. */
        width: 30px;
        flex-grow: 0;
    }

    .zulip-icon-send {
        display: block;
        font-size: 17px;
        line-height: 16px;
    }

    .loader {
        display: none;
    }
}

.enter_sends_choices {
    .enter_sends_choice {
        display: flex;
        gap: 8px;
        padding-top: 4px;

        & input[type="radio"] {
            position: relative;
            top: 5px;
            width: auto;
            cursor: pointer;
            margin: 4px 0 0;

            &:focus {
                outline: 1px dotted hsl(0deg 0% 20%);
                outline: 5px auto -webkit-focus-ring-color;
                outline-offset: -2px;
            }
        }

        &:first-child {
            padding: 0 0 4px;
            border-bottom: 1px solid hsl(0deg 0% 0% / 20%);
        }
    }

    .enter_sends_choice_text {
        display: flex;
        flex-direction: column;
    }

    .enter_sends_minor,
    .enter_sends_minor kbd {
        opacity: 0.9;
        font-size: 11px;
        color: hsl(0deg 0% 50%);
    }
}

.drafts-item-in-popover {
    display: none;
    /* Only show the Drafts item in the popover when it's not visible
       in the compose box. */
    @media (width < $sm_min) {
        display: block;
    }
}

#compose-recipient {
    display: flex;
    flex: 1 1 0;
    /* Use this containing flex element to
      establish the minimum height of all its
      children; the default `align-items: stretch`
      (which is set on any flexbox without specifying
      it) ensures that the child flex items will
      always stretch to fit the height set here;
      larger heights, such as on group-DM pills,
      will allow this to grow as needed.
      Child flex items like chevrons take
      `align-self: center` to center only
      themselves, where necessary. */
    min-height: var(--compose-recipient-box-min-height);
}

.compose-control-buttons-container {
    display: flex;
    align-items: center;

    /* We use the selector in this manner to maintain specificity. */
    .compose_control_button_container .compose_gif_icon {
        font-size: 22px;
    }

    .compose_control_button {
        height: 27px;
        width: 27px;
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0.7;
        color: inherit;
        text-decoration: none;
        font-size: 17px;
        border-radius: 4px;

        &:hover {
            opacity: 1;
            background-color: hsl(0deg 0% 0% / 10%);
        }
    }

    .compose_control_button_container.disabled-on-hover:hover {
        opacity: 0.3;
        cursor: not-allowed;

        .compose_control_button {
            pointer-events: none;
        }
    }

    .fa-eye {
        position: relative;
        top: -0.7px;
    }

    .compose_control_menu {
        padding: 0 1px;
        font-size: 18px;
    }

    .compose_control_menu_wrapper {
        opacity: 0.7;
        padding: 0;
        margin: 0;

        &:hover {
            opacity: 1;
        }

        .compose_control_menu {
            opacity: 1;
            display: none;

            /* The media query below handles the hiding and showing of the
            vdot menu icon, so that it is hidden when all compose buttons fit
            in the main row below the compose box. So, this is the same as
            the media query for .show_popover_buttons. */

            @media (((width < $cb1_min) and (width >= $xl_min)) or ((width < $cb2_min) and (width >= $md_min)) or (width < $cb3_min)) {
                display: flex;
            }
        }
    }

    .divider {
        color: hsl(0deg 0% 75%);
        font-size: 20px;
        margin: 0 3px;
    }

    .compose_draft_button {
        font-size: 15px;
        font-weight: 600;
        font-family: "Source Sans 3 VF", sans-serif;
        padding: 0 5px;
        position: relative;
        top: 0.7px;
    }

    .compose_help_button {
        font-size: 20px;
        line-height: 17px;
    }

    .show_popover_buttons {
        display: flex;
        align-items: center;
        padding: 0;
        margin: 0;

        /* We use this class for the div containing those compose buttons, which
        we hide and show in a popover instead when they no longer fit in a
        single row. The media query below handles the hiding and showing of the
        buttons from the main row of compose buttons below the compose box. */

        @media (((width < $cb1_min) and (width >= $xl_min)) or ((width < $cb2_min) and (width >= $md_min)) or (width < $cb3_min)) {
            display: none;
        }
    }

    .show_popover_buttons_2 {
        display: flex;
        align-items: center;
        padding: 0;
        margin: 0;

        /* This is similar to show_popover_buttons, but it's only for those
        compose buttons that we hide, and show in the popover only when the
        screen gets extremely narrow. */

        @media (width < $cb4_min) {
            display: none;
        }
    }

    &.show_cb4 {
        display: none;

        @media (width < $cb4_min) {
            display: flex;
        }
    }
}

.message-send-controls {
    display: flex;

    @media (width < $sm_min) {
        /* At small widths, we display the
           diminutive Send button and vdots
           in a column, using `column-reverse`
           to put the vdots above Send. */
        flex-direction: column-reverse;
    }

    &.disabled-message-send-controls {
        cursor: not-allowed;

        & button {
            pointer-events: none;
        }

        #compose-send-button {
            background-color: hsl(0deg 0% 65%);
        }

        #send_later {
            color: hsl(0deg 0% 65%);
        }
    }
}

.drag {
    display: none;
    height: 18px;
    width: 100%;
    top: 23px;
    position: relative;
    cursor: ns-resize;
}

.preview_message_area {
    /* minus 5px padding. */
    width: calc(100% - 12px);
    padding: 5px;
    /* the maximum height the textarea gets to. */
    max-height: 308px;
    /* the minimum height the textarea collapses to. */
    min-height: 42px;
    overflow: auto;

    border: 1px solid hsl(0deg 0% 67%);
    border-radius: 4px;
    background-color: hsl(0deg 0% 98%);
    cursor: not-allowed;
}

.markdown_preview_spinner {
    margin: auto;
}

#compose_select_recipient_widget_wrapper {
    display: flex;
    justify-content: flex-start;
    height: var(--compose-recipient-box-min-height);

    .stream_header_colorblock {
        margin: 0;
    }

    .dropdown_widget_value {
        flex-grow: 1;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        color: var(--color-text-default);

        .stream-privacy-type-icon {
            font-size: 13px;
            width: 13px;
            height: 13px;
            position: relative;
            top: 2px;
        }
    }

    .fa-chevron-down {
        padding-left: 5px;
        color: hsl(0deg 0% 58%);
        font-weight: lighter;
    }

    /* This is the "Select a stream" default message */
    .text-warning {
        color: inherit;
    }
}

.dropdown-menu {
    & ul {
        list-style: none;
        margin: 0;
        background-color: var(--color-background-popover);
    }

    .typeahead-header {
        margin: 0;
        padding-left: 20px;
        padding-right: 20px;
        padding-top: 4px;
        border-top: 1px solid hsl(0deg 0% 0% / 20%);
        display: flex;
        align-items: center;
    }

    #typeahead-header-text {
        font-size: 12px;
    }

    &.typeahead {
        background: hsl(0deg 0% 100%);
    }
}

.compose_mobile_stream_button i,
.compose_mobile_direct_message_button i {
    margin-right: 4px;
}

/* Class for send-area buttons, such as
   Drafts and the send-adjacent vdots */
.send-control-button {
    border: 0;
    outline: 0;
    padding: 0;
    margin: 0;
    border-radius: 4px;
    color: var(--color-compose-send-control-button);
    background-color: var(--color-compose-send-control-button-background);
    font-weight: 450;

    &:active {
        transition: all 80ms;
        transform: scale(0.96);
    }

    &:focus {
        outline: 0;
    }

    &:focus-visible {
        outline: 2px solid var(--color-outline-focus);
    }

    &:hover {
        /* We need to use !important here, regrettably, to keep the default
           dark-mode hover colors from showing. */
        color: var(--color-compose-send-control-button-interactive) !important;
        background-color: var(
            --color-compose-send-control-button-background-interactive
        );
        text-decoration: none;
    }
}

/* vdots icon located next to `Send` button which shows
   options to schedule the message. */
#send_later {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    /* Allow to grow but not shrink */
    flex: 1 0 auto;
    /* TODO: Set this as a variable shared with
       the send button. */
    height: 28px;
    /* Make the vdots appear to extend from
       beneath the send button when an
       interactive background is present.
       Compensatory padding for this negative
       margin is handled on the vdots icon
       below, so as to make for a maximum
       clickable vdots area. */
    margin-left: -4px;
    border-radius: 0 4px 4px 0;
    /* Flex items respect z-index values;
       this is needed to keep the vdots
       background beneath the send button. */
    z-index: 0;

    &:focus-visible {
        /* Use a border, not an outline, to preserve the
           conjoined layout with the Send button. Flexbox
           will handle the dimension change, so there won't
           be any movement of the vdots in this state. */
        outline: 0;
        border: 2px solid var(--color-outline-focus);
    }

    @media ((width >= $sm_min) and (width < $mc_min)) {
        width: 32px;
    }

    @media (width < $sm_min) {
        /* Drop to a square, rounded button. */
        width: 30px;
        margin-left: 0;
        border-radius: 4px;
    }

    .zulip-icon {
        padding: 5px 0 5px 4px;
        font-size: 17px;
        flex-grow: 1;
    }
}

#compose-drafts-button {
    /* Use border-box sizing to make
       width calculations more predictable
       in a flex context. */
    box-sizing: border-box;
    /* In a columnar flex, we need to
       use alignment to keep the Drafts
       button from expanding the full
       width of the column. */
    align-self: flex-start;
    /* Keep the Drafts button text
       aligned with the Send button's
       lefthand edge */
    padding: 0 8px;
    margin-left: -8px;
    /* Allow the button to occupy as much
       as 100% of the container width, plus
       the 8px from the negative left margin. */
    max-width: calc(100% + 8px);
    /* Set an ellipsis when the translated
       version of `Drafts` exceeds the width,
       and keep button text to a single line. */
    white-space: nowrap;
    overflow-x: hidden;
    text-overflow: ellipsis;

    @media (width < $mc_min) {
        margin-left: 0;
        /* With no negative left margin,
           hold the max width to 100%. */
        max-width: 100%;
        /* Align the `Drafts` text with the
           send icon below. */
        padding: 0 5px;
    }
}

@media (width < $xl_min) {
    #compose-content {
        margin-right: 7px;
    }
}

@media (width < $md_min) {
    #compose-content {
        margin-right: 7px;
        margin-left: 7px;
    }
}

@media (width < $mm_min) {
    #compose-content {
        margin-right: 5px;
        margin-left: 5px;
    }
}

#compose.compose-fullscreen {
    z-index: 99;

    #compose-container {
        height: 100%;
    }

    .message_comp {
        flex: 1;
        display: flex !important;
        flex-flow: column;
    }

    #compose-textarea,
    #preview_message_area {
        /* When in full screen, override max-height
           properties set from manually resizing. */
        max-height: none !important;
    }

    #compose-textarea {
        /* Additionally, override the height properties
           on the textarea. This is essential if the
           textarea has been manually resized prior
           to going into fullscreen. */
        height: auto !important;
    }

    #preview_message_area {
        /* Setting height to 0 is necessary to make the flex+Simplebar
           combination work correctly, without pushing the compose
           controls offscreen when previewing a very tall message. */
        height: 0;
        flex: 1;
    }
}

.preview_mode {
    #preview-message-area-container {
        /* Maintain same top alignment as the
           compose textarea. */
        margin-top: 5px;
        /* When in preview mode, we display the
           preview container as a columnar flexbox.
           This containing element is necessary
           because Simplebar on its own will cause
           a grid blowout despite a minmax(0, 1fr)
           row definition. */
        display: flex;
        flex-flow: column;
    }

    .preview_mode_disabled {
        cursor: not-allowed;
        opacity: 0.3;

        .compose_control_button {
            pointer-events: none;
        }
    }
}