zulip/web/styles/compose.css

#compose_buttons {
    text-align: right;
    display: flex;
    column-gap: 4px;
    flex-direction: row;
    /* With precisely controlled line-heights
       in this area, stretch will both center
       and maintain uniform heights between the
       reply button and the new-message button. */
    align-items: stretch;

    .compose_mobile_button {
        /* Keep the new message button sized to match
           adjacent buttons. */
        min-width: inherit;
        padding: 3px 10px;
        border-radius: 4px;
        outline: none;
        /* This is ugly, but necessary to use the
           text + for the compose button. An icon
           would likely be a better choice here.
           1.2em is 16.8px at 14px em. */
        font-size: 1.2em;
        /* 1.2em is 16.8px at 14px em; this
           maintains the 20px em-equivalent compose
           line height, but at a 16.8px em. */
        line-height: 1.19em;
        font-weight: 400;
        color: var(--color-text-default);
        background-color: var(--color-background-compose-new-message-button);
        border: 1px solid var(--color-border-compose-new-message-button);

        &:hover {
            background-color: var(
                --color-background-compose-new-message-button-hover
            );
            border-color: var(--color-border-compose-new-message-button-hover);
        }

        &:active {
            background-color: var(
                --color-background-compose-new-message-button-active
            );
            border-color: var(--color-border-compose-new-message-button-hover);
        }
    }

    .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);

        &: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 {
            /* Keep the new message button sized to match
               adjacent buttons. */
            font-size: inherit;
            min-width: inherit;
            padding: 3px 10px;
            outline: none;
            border: none;
            color: var(--color-text-default);
            background: var(--color-compose-embedded-button-background);
            border-radius: 3px;
            line-height: var(--line-height-compose-buttons);
        }

        .compose-reply-button-wrapper {
            flex-grow: 1;
            overflow: hidden;
        }

        #left_bar_compose_reply_button_big {
            width: 100%;
            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;
            min-width: inherit;
            margin: 1px;
            flex-shrink: 0;

            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;
        line-height: var(--line-height-compose-buttons);

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

    #new_direct_message_button {
        /* Keep the new message button sized to match
           adjacent buttons. */
        font-size: inherit;
        min-width: inherit;
        line-height: var(--line-height-compose-buttons);
        padding: 3px 10px;
        border-radius: 4px;
        outline: none;
        color: var(--color-text-default);
        background-color: var(--color-background-compose-new-message-button);
        border: 1px solid var(--color-border-compose-new-message-button);

        &:hover {
            background-color: var(
                --color-background-compose-new-message-button-hover
            );
            border-color: var(--color-border-compose-new-message-button-hover);
        }

        &:active {
            background-color: var(
                --color-background-compose-new-message-button-active
            );
            border-color: var(--color-border-compose-new-message-button-hover);
        }
    }
}

/* Main geometry for this element is in zulip.css */
#compose-content {
    background-color: var(--color-compose-box-background);
    padding: 7px 7px 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;

    &:hover {
        .composebox-buttons > button {
            opacity: 1;
        }
    }
}

.message_comp {
    display: none;
    padding: 0 7px 0 0;

    #compose_banners {
        max-height: min(25vh, 240px);
        overflow-y: auto;
        /* Align to compose controls; that's 112px width,
           plus 6px of grid gap for 118px here. */
        margin-right: calc(var(--compose-send-controls-width) + 6px);
    }
}

.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;
            }
        }

        .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);

            .conversation-arrow {
                font-size: 16px;
                line-height: 16px;
                border-radius: 50%;
                padding: 2px;
                margin: 0 3px;
                color: var(--color-compose-chevron-arrow);
                text-decoration: none;
                cursor: default;
                transition: none 0.2s ease-in-out;
                transition-property: background, color;

                &.narrow_to_compose_recipients {
                    background: var(
                        --color-narrow-to-compose-recipients-background
                    );
                    color: var(--color-narrow-to-compose-recipients);
                    cursor: pointer;

                    &:hover {
                        background: var(
                            --color-narrow-to-compose-recipients-background-hover
                        );
                        color: var(--color-narrow-to-compose-recipients-hover);
                    }
                }
            }
        }
    }

    #compose-direct-recipient {
        flex-grow: 1;
        display: grid;
        grid-template-columns: 1fr;
        align-items: stretch;
    }

    .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 {
        /* normally 5px 14px; pull in the right and bottom a bit */
        cursor: default;
        flex: 1;
        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. */
        grid-template:
            minmax(0, 1fr) var(--compose-formatting-buttons-row-height)
            / minmax(0, 1fr) var(--compose-send-controls-width);
        grid-template-areas:
            "message-content-container message-send-controls-container"
            "message-formatting-controls-container message-send-controls-container";
        gap: 0 6px;
    }

    .message_content {
        margin-right: 0;
    }
}

#message-content-container {
    grid-area: message-content-container;
    display: grid;
    grid-template: minmax(0, 1fr) / minmax(0, 1fr) var(
            --composebox-buttons-width
        );
    grid-template-areas: "message-content composebox-buttons";
    border-radius: 4px;
    border: 1px solid var(--color-message-content-container-border);
    transition: border-color 0.2s ease;

    &:has(.new_message_textarea:focus) {
        border-color: var(--color-message-content-container-border-focus);
    }

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

    &:has(.new_message_textarea.over_limit.flash) {
        animation: message-limit-flash 0.5s ease-in-out 3;
    }

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

#message-content-container .composebox-buttons {
    grid-area: composebox-buttons;
    /* z-index is needed to avoid flickering of cursor and the
    button when hovering it in preview mode. */
    z-index: 1;
    height: max-content;

    button {
        width: 24px;
        /* Override any UA stylesheet padding, such as that
           added by mobile Safari. */
        padding: 0;
        border: none;
        aspect-ratio: 1 / 1;
        background-color: var(--color-composebox-button-background);
        color: var(--color-composebox-button);
        border-radius: 3px;
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0;
        transition:
            opacity 0.4s ease-in,
            color 0.1s ease-in,
            background-color 0.1s ease-in;

        &:hover {
            background-color: var(--color-composebox-button-background-hover);
            color: var(--color-composebox-button-hover);
        }

        &:focus {
            outline: 0;
        }

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

    .collapse-composebox-button,
    .maximize-composebox-button {
        display: none;
    }
}

#compose-textarea,
#preview-message-area-container {
    grid-area: message-content;
}

#compose-textarea,
#preview_message_area {
    margin-right: calc(var(--composebox-buttons-width) * -1);
    padding-right: var(--composebox-buttons-width);
    background-color: var(--color-compose-message-content-background);
    color: var(--color-text-default);
}

.surround-formatting-buttons-row {
    /* This is to extend it under the formatting buttons
       row, so that any border / box-shadow styles applied
       to it surround the formatting buttons row as well. */
    padding-bottom: var(--compose-formatting-buttons-row-height);
    /* The extra 1px of margin-bottom is to ensure the 1px of
       border-bottom shows below the formatting buttons row. */
    margin-bottom: calc(
        (var(--compose-formatting-buttons-row-height) + 1px) * -1
    );

    textarea {
        /* Flatten the bottom edge of the textarea to
           merge with the flat top edge of the buttons row */
        border-radius: 3px 3px 0 0;
    }
}

#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;
    /* With a columnar flex, this ensures that
       send controls occupy the same space as
       the adjacent textbox. */
    justify-content: space-between;
    /* 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;
    border-radius: 0 0 3px 3px;
    background-color: var(--color-message-formatting-controls-container);
    /* margin on either side to let the border of
       .message-content-container show through. */
    margin: 0 1px;
}

#compose-limit-indicator:not(:empty) {
    font-size: 12px;
    color: var(--color-limit-indicator);
    width: max-content;

    /* Keep the limit indicator just above
       and aligned with the send button.
       `:not(:empty)` prevents the padding
       and margin-top from affecting layout
       in the controls area when no indicator
       is present. */
    margin-top: auto;
    padding: 3px 3px 3px 0;

    &.over_limit {
        color: var(--color-limit-indicator-over-limit);
        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;
    /* Align to compose controls; that's 112px width,
       plus 6px of grid gap for 118px here. */
    margin-right: calc(var(--compose-send-controls-width) + 6px);
}

#compose_close {
    position: absolute;
    top: 0;
    right: 0;
    color: var(--color-compose-send-control-button);
    background: transparent;
    font-size: 12.5px;
    font-weight: normal;
    line-height: 20px;
    opacity: 0.7;
    border: 0;
    padding: 3px 7px;
    border-radius: 8px;
    vertical-align: unset;
    text-shadow: none;

    &:hover {
        opacity: 1;
        background: var(--color-compose-embedded-button-background-hover);
        color: var(--color-compose-send-control-button-interactive);
    }

    &:active {
        background-color: var(
            --color-compose-embedded-button-background-interactive
        );
    }

    &:focus:not(:focus-visible) {
        outline: none;
    }

    &:focus-visible {
        outline-color: var(--color-compose-focus-ring);
    }
}

.main-view-banner {
    margin-bottom: 20px;
    border-radius: 5px;
    border: 1px solid;
    display: flex;
    align-items: center;
    /* Banners should carry at least a minimum
       legacy font-size of 15px, and a line-height
       of 18px. 1.2em is 18px at 15px/1em. */
    font-size: max(15px, var(--base-font-size-px));
    line-height: max(18px, 1.2em);

    .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. 2.1333em is 32px at 15px/1em. */
        min-height: 2.1333em;
        /* 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. 2.4em is two 1.2em lines in the
           banner area. */
        max-height: 2.4em;
        /* 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 {
        text-decoration: none;
        /* Set same top and bottom margin
           as action buttons. */
        margin: 8px 0;
        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;
        /* 2.4em is two 1.2em lines in the
           banner area. */
        max-height: 2.4em;
        /* 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;

        /* Set the font-size for the close button
           on the ::before element, so that it doesn't
           impact the em units above. */
        &::before {
            font-size: 16px;
        }
    }

    .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.
           2.2667 is 34px at 15px/1em; */
        max-height: 2.2667em;
    }

    &.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; /* stylelint-disable-line plugin/no-low-performance-animation-properties */
        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;
    padding: 5px 5px 0;
    height: 1.5em;
    max-height: 22em;
    margin: 0;
    resize: none !important;
    border-radius: 3px 3px 0 0;
    border: none;
    scrollbar-width: thin;
    scrollbar-color: hsl(0deg 0% 50%) transparent;
    box-shadow: none;

    &:focus {
        outline: 0;
    }

    &:read-only,
    &:disabled {
        background-color: hsl(0deg 0% 93%);
    }
}

#message-content-container,
#compose_recipient_box {
    color: var(--color-text-default);
}

#compose_recipient_box {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: stretch;
    flex: 1 1 0;
    border: 1px solid var(--color-compose-recipient-box-border-color);
    border-radius: 4px;
    transition: border-color 0.2s ease;
    background: var(--color-compose-recipient-box-background-color);

    /* Give the recipient box, a `<div>`, the
       correct styles when focus is in the
       #stream_message_recipient_topic `<input>` */
    &:focus-within {
        border-color: var(--color-compose-recipient-box-has-focus);
    }

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

        box-shadow: none;
        outline: none;

        padding: 4px 6px;
        /* Reset height to let `align-items: stretch` on the grid parent handle this. */
        height: auto;
    }

    /* 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;
        }
    }

    #stream_message_recipient_topic:placeholder-shown
        + #recipient_box_clear_topic_button {
        display: none;
    }
    /* This will reset the bootstrap margin-bottom: 10px value for the inputs */
    & input {
        margin-bottom: 0;
    }
}

#compose_select_recipient_widget {
    width: auto;
    outline: none;
    /* We override the component-level colors to
       ensure concord with the topic box. */
    color: var(--color-compose-recipient-box-text-color);
    background-color: var(--color-compose-recipient-box-background-color);
    border-color: var(--color-compose-recipient-box-border-color);

    &.dropdown-widget-button {
        padding: 0 6px;
        border-radius: 4px;
    }
}

#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: transform 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: var(--compose-formatting-buttons-row-height);
    /* 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 {
    display: flex;
    flex-direction: column;
    color: var(--color-text-popover-menu);

    .enter_sends_choice {
        display: flex;
        gap: 8px;
        padding: 4px 10px;
        align-items: flex-start;

        &:hover {
            background: var(--color-background-hover-popover-menu);
            outline: none;
        }

        &:active {
            background: var(--color-background-active-popover-menu);
        }

        &:focus-visible {
            background: var(--color-background-hover-popover-menu);
            border-radius: 4px;
            outline: 1px solid var(--color-outline-focus) !important;
            outline-offset: -1px;
        }

        & .enter_sends_choice_radio {
            width: auto;
            cursor: pointer;
            margin: 4px 0 0;
            accent-color: hsl(217deg 100% 60%);

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

            &:checked
                + .enter_sends_choice_text_container
                .popover-menu-hotkey-hint {
                color: hsl(217deg 100% 60%);
                border: 1px solid hsl(217deg 100% 60% / 50%);
            }
        }
    }

    .enter_sends_choice_text_container {
        display: flex;
        flex-direction: column;
        flex-shrink: 0;
        gap: 3px;
        white-space: nowrap;
    }

    .enter_sends_choice_text {
        display: flex;
        align-items: center;
        gap: 3px;
    }

    .popover-menu-hotkey-hints {
        margin: 0;
        padding: 0;

        .popover-menu-hotkey-hint {
            padding: 2px 5px;
        }
    }

    .enter_sends_major {
        font-size: 15px;
    }

    .enter_sends_minor {
        font-size: 12px;

        .popover-menu-hotkey-hint {
            font-size: 12px;
            padding: 1px 4px;
        }
    }
}

.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;
    }

    .unread_count {
        margin: 1px 0 0 6px;
        border: 0.5px solid var(--color-border-unread-counter);
        background-color: unset;
        color: inherit;
    }
}

#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);
    min-width: 0;
}

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

    .compose_control_button {
        /* 22px at 14px/1em */
        font-size: 1.5714em;
        /* Coordinate with the value of
           --compose-formatting-buttons-row-height */
        /* 28px at 22px/1em */
        height: 1.2727em;
        /* 30px at 22px/1em */
        width: 1.3636em;
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0.7;
        color: inherit;
        text-decoration: none;

        &:hover {
            opacity: 1;
            background-color: var(
                --color-compose-control-button-background-hover
            );
        }

        &:focus:not(:focus-visible) {
            outline: none;
        }

        &:focus-visible {
            outline-color: var(--color-compose-focus-ring);
        }
    }

    .compose_control_button_container.disabled-on-hover:hover {
        opacity: 0.3;

        .compose_control_button {
            pointer-events: none;
        }
    }

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

    .compose_control_menu {
        padding: 0 1px;
        /* 18px at 14px/1em */
        font-size: 1.2957em;
        /* Coordinate with the value of
           --compose-formatting-buttons-row-height */
        /* 28px at 18px/1em */
        height: 1.5556em;
    }

    .compose_control_menu_wrapper {
        /* Since `compose_control_menu_wrapper` is the reference for the tippy popover, it is
           important to set it's display correctly so that tippy knows when to hide / show popover
           on window resize. */
        display: none;
        opacity: 0.7;
        padding: 0;
        margin: 0;

        &:hover {
            opacity: 1;
        }

        .compose_control_menu {
            opacity: 1;
            display: none;
        }
    }

    .divider {
        color: hsl(0deg 0% 75%);
        /* 20px at 14px/1em */
        font-size: 1.4286em;
        margin: 0 3px;
        /* Coordinate with the value of
           --compose-formatting-buttons-row-height */
        /* 28px at 20px/1em */
        height: 1.4em;

        @media (width < 400px) {
            /* Remove at mobile widths to make more space
               for compose buttons */
            display: none;
        }
    }

    .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;
    }

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

    &.show_in_popover {
        display: none;
    }
}

.less-dense-mode {
    .compose-control-buttons-container {
        .compose_control_menu_wrapper {
            /* 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 < 1418px) and (width >= $xl_min)) or (width < 1178px)) {
                display: block;

                .compose_control_menu {
                    display: flex;
                }
            }
        }

        .show_popover_buttons {
            /* 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 < 1418px) and (width >= $xl_min)) or (width < 1178px)) {
                display: none;
            }
        }

        .show_popover_buttons_2 {
            /* 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 < 596px) or ((width < 939px) and (width >= $md_min))) {
                display: none;
            }
        }

        &.show_in_popover {
            /* This is to show the popover 2 buttons in the popover, only when
            they are hidden in the main row below the compose box. */
            @media ((width < 596px) or ((width < 939px) and (width >= $md_min))) {
                display: flex;
            }
        }

        .compose_control_button {
            /* Slightly reduce width so that buttons don't overflow the available
            space at mobile widths */
            @media (width < 400px) {
                width: 1.28em;
            }
        }
    }
}

.more-dense-mode {
    .compose-control-buttons-container {
        .compose_control_menu_wrapper {
            @media (((width < $cb1_min) and (width >= $xl_min)) or ((width < $cb2_min) and (width >= $md_min)) or (width < $cb4_min)) {
                display: block;

                .compose_control_menu {
                    display: flex;
                }
            }
        }

        .show_popover_buttons {
            @media (((width < $cb1_min) and (width >= $xl_min)) or ((width < $cb2_min) and (width >= $md_min)) or (width < $cb4_min)) {
                display: none;
            }
        }

        .show_popover_buttons_2 {
            @media ((width < $cb5_min) or ((width < $cb3_min) and (width >= $md_min))) {
                display: none;
            }
        }

        &.show_in_popover {
            @media ((width < $cb5_min) or ((width < $cb3_min) and (width >= $md_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 {
        & button {
            pointer-events: none;
            opacity: 0.5;
        }
    }
}

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

.preview_message_area {
    padding: 5px 5px 0;
    overflow: auto;

    border-radius: 3px 3px 0 0;
}

.markdown_preview_spinner {
    margin: auto;
}

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

    &:focus-visible {
        outline: 0;

        #compose_select_recipient_widget {
            border-color: var(--color-compose-recipient-box-has-focus);
        }
    }

    .dropdown_widget_value {
        flex-grow: 1;
        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;
        }
    }

    .zulip-icon-chevron-down {
        padding-left: 5px;
        color: var(--color-compose-chevron-arrow);
        font-weight: lighter;
    }
}

/* 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: transform 80ms;
        transform: scale(0.96);
    }

    &:focus:not(:focus-visible) {
        outline: none;
    }

    &:focus-visible {
        outline-color: var(--color-compose-focus-ring);
    }

    &: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;
    height: var(--compose-formatting-buttons-row-height);
    /* 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-compose-focus-ring);
    }

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

    @media (width < $sm_min) {
        /* Drop to a square, rounded button. */
        width: 30px;
        /* This reduces the vdots button so that
           it and the send button fit within the
           53px height the compose textarea occupies,
           including its top border. */
        height: 25px;
        margin-left: 0;
        border-radius: 4px;
    }

    .zulip-icon {
        padding: 5px 0 5px 4px;
        /* 17px at 14px/1em */
        font-size: 1.2143em;
        flex-grow: 1;

        @media (width < $sm_min) {
            /* Keep vdots centered above the
               Send button at smallest sizes. */
            padding-left: 0;
        }
    }
}

#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);
    display: flex;
    gap: 2px;

    .compose-drafts-text {
        /* 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;
        flex-grow: 1;
    }

    @media (width < $mc_min) {
        /* Reduce the padding on the sides so the
        button's edge isn't too close to the textarea */
        margin-left: -3px;
        max-width: calc(100% + 3px);
        /* Align the `Drafts` text with the
           send icon below. */
        padding: 0 3px;
    }
}

.saved_snippets-dropdown-list-container {
    width: 250px;

    .dropdown-list .dropdown-list-item-common-styles {
        padding: 5px 10px;
        display: flex;
        flex-direction: column;

        .dropdown-list-item-name {
            line-height: 15px;
        }

        .dropdown-list-item-description {
            white-space: nowrap;
            font-weight: 400;
            font-size: 13px;
            opacity: 0.8;
            padding: 0;
            text-overflow: ellipsis;
            overflow: hidden;
        }

        .dropdown-list-bold-selected {
            font-weight: 500;
            max-width: 210px;
            display: inline-block;
            text-overflow: ellipsis;
            overflow: hidden;
            white-space: nowrap;
        }
    }
}

#add-new-saved-snippet-modal {
    & .saved-snippet-title {
        width: 97%;
        margin-bottom: 20px;
    }

    & .saved-snippet-content {
        width: 97%;
        resize: vertical;
    }
}

#compose.compose-fullscreen,
#compose.compose-intermediate {
    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;
    }
}

#compose.compose-fullscreen {
    .maximize-composebox-button,
    .expand-composebox-button {
        display: none;
    }

    .collapse-composebox-button {
        display: flex;
    }
}

#compose.compose-intermediate,
#compose.automatically-expanded {
    .collapse-composebox-button,
    .expand-composebox-button {
        display: none;
    }

    .maximize-composebox-button {
        display: flex;
    }
}

#compose.compose-intermediate {
    height: var(--max-unmaximized-compose-height);
}

.preview_mode {
    #preview-message-area-container {
        /* 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 {
        opacity: 0.3;

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