zulip/static/styles/app_components.css

/* Reusable, object-oriented CSS base components for the Zulip web app
   (not included in the portico CSS) */

.flex {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Inserting this collapsed row between two flex items will make
 * the flex item that comes after it break to a new row */
.break-row {
    flex-basis: 100%;
    height: 0;
}

.hide {
    display: none;
}

.light {
    font-weight: 300;
}

.inline-block {
    display: inline-block;
}

.display-block {
    display: block !important;
}

.box-shadow {
    box-shadow: 0 0 10px hsla(0, 0%, 0%, 0.1);
}

.bg-white {
    background-color: hsl(0, 0%, 100%);
}

.clear-float {
    clear: both;
}

.invisible {
    visibility: hidden;
}

/*
Consistent placeholder styling, introduced to allow us to style the
Reply box like a placeholder.  Chrome uses color to set placeholder,
while Firefox uses opacity, so we need to set both properties to avoid
mixed styling.

While we usually prefer opacity for text color in Zulip, there's some
evidence Edge may have bugs in its handling of placeholder opacity
CSS: https://github.com/necolas/normalize.css/issues/741
*/
.placeholder {
    color: hsl(0, 0%, 45%);
    opacity: 1;
}

textarea::placeholder,
input::placeholder {
    @extend .placeholder;
}

.new-style {
    /* -- base button styling -- */
    .button {
        padding: 7px 14px;
        margin: 0;
        min-width: 130px;

        font-weight: 400;
        line-height: normal;
        text-align: center;

        background-color: hsl(0, 0%, 100%);
        color: inherit;
        outline: none;
        border: 1px solid hsl(0, 0%, 80%);
        border-radius: 2px;

        box-shadow: none;

        cursor: pointer;
        transition: all 0.2s ease;

        /* -- button style variations -- */
        &.no-style {
            padding: 0;
            background-color: transparent;
            border: none;
            min-width: 0;
            width: auto;
            outline: none;
            box-shadow: none !important;
        }

        &.rounded {
            border-radius: 4px;
        }

        &.green {
            background-color: hsl(150, 31%, 53%);
        }

        &.grey {
            background-color: hsl(0, 0%, 67%);
        }

        &.standalone {
            margin-top: 10px;
        }

        &.small {
            font-size: 0.8rem;
            min-width: inherit;
            padding: 6px 10px;
        }

        &.small-flex {
            width: auto;
            min-width: inherit;
        }

        &:hover,
        &:focus {
            border-color: hsl(0, 0%, 60%);
        }

        &:active {
            border-color: hsl(0, 0%, 60%);
            color: inherit;
            background-color: hsl(0, 0%, 95%);
        }

        &.sea-green {
            color: hsl(156, 41%, 40%);
            border-color: hsl(156, 28%, 70%);

            &:hover,
            &:focus {
                border-color: hsl(156, 30%, 50%);
            }

            &:active {
                border-color: hsl(156, 30%, 40%);
                color: hsl(156, 44%, 43%);
                background-color: hsl(154, 33%, 96%);
            }
        }

        &.btn-warning {
            color: hsl(35, 70%, 56%);
            border-color: hsl(35, 98%, 84%);

            &:hover,
            &:focus {
                border-color: hsl(35, 55%, 70%);
            }

            &:active {
                color: hsl(35, 82%, 40%);
                border-color: hsl(35, 55%, 70%);
                background-color: hsl(33, 48%, 96%);
            }
        }

        &.btn-danger {
            color: hsl(357, 64%, 72%);
            border-color: hsl(4, 56%, 82%);

            &:hover,
            &:focus {
                border-color: hsl(2, 46%, 68%);
            }

            &:active {
                color: hsl(357, 55%, 63%);
                border-color: hsl(2, 46%, 68%);
                background-color: hsl(7, 82%, 98%);
            }
        }

        &.btn-link {
            color: hsl(208, 56%, 53%);
            text-decoration: none;

            &:hover,
            &:focus {
                color: hsl(208, 56%, 38%);
            }
        }

        &:disabled {
            cursor: not-allowed;
            filter: saturate(0);
            background-color: hsl(0, 0%, 93%);
            color: hsl(0, 3%, 52%);

            &:hover {
                background-color: hsl(0, 0%, 93%);
                color: hsl(156, 39%, 54%);
                border-color: hsl(156, 39%, 77%);
            }
        }
    }

    /* -- tab switcher -- */

    .tab-switcher {
        font-weight: initial;
        margin: 2px 4px;
        display: inline-block;

        .ind-tab {
            display: inline-block;
            width: 90px;
            margin: 0 -0.5px;
            text-align: center;
            text-overflow: ellipsis;
            white-space: nowrap;
            overflow: hidden;
            vertical-align: bottom; /* See https://stackoverflow.com/a/43266155/ */
            padding: 3px 10px;
            background-color: hsl(0, 0%, 100%);
            cursor: pointer;
            justify-content: center;
            align-items: center;

            &:focus {
                outline: none;
            }

            &:not(.selected) {
                border: 1px solid hsl(0, 0%, 80%);
            }

            &.first {
                border-radius: 5px 0 0 5px;
                border-right: 1px solid transparent;
            }

            &.middle {
                border-right: 1px solid transparent;
            }

            &.last {
                border-radius: 0 5px 5px 0;
            }

            &.selected {
                position: relative;
                background-color: hsl(0, 0%, 53%);
                color: hsl(0, 0%, 100%);
                border: 1px solid hsl(0, 0%, 47%);
                z-index: 2;
            }

            &.disabled {
                pointer-events: none;
                color: hsl(0, 0%, 80%);
                border-color: hsl(0, 0%, 87%);
            }
        }

        &.large .ind-tab {
            width: 100%;
        }

        &.allow-overflow {
            display: flex;

            .ind-tab {
                display: flex;
                text-overflow: initial;
                white-space: initial;
                vertical-align: middle;
            }
        }
    }

    .stream_sorter_toggle {
        margin-left: auto;
    }
}

/* -- unified overlay design component -- */
div.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    -webkit-overflow-scrolling: touch;

    background-color: hsla(0, 0%, 13%, 0.8);
    z-index: 105;

    pointer-events: none;
    opacity: 0;
    visibility: hidden;

    transition: all 0.2s ease-in;
    overflow: hidden;

    .overlay-content {
        transform: translateY(20px);
        transition: transform 0.2s ease-in;
        z-index: 102;
    }

    &.show {
        opacity: 1;
        pointer-events: all;
        visibility: visible;
        transition: opacity 0.2s ease-out;

        .overlay-content {
            transform: translateY(0);
            transition-timing-function: ease-out;
        }
    }
}

.input-append {
    font-size: 90%;
    letter-spacing: -0.3em;
    display: block;
}

.input-append input[type="text"],
.new-style input[type="text"] {
    border-radius: 5px;
    box-shadow: none;
    margin: 0;
}

.clear_search_button {
    &:hover {
        color: hsl(0, 0%, 0%);
    }

    &:disabled {
        visibility: hidden;
    }

    &,
    &:focus,
    &:active,
    &:disabled:hover {
        position: relative;
        right: 20px;
        background: none;
        border: none;
        text-align: center;
        padding-top: 8px;
        padding-left: 4px;
        color: hsl(0, 0%, 80%);
        text-shadow: none;
        outline: none !important;
        box-shadow: none;
        z-index: 5;

        #set_user_status_modal & {
            margin-left: -26px;
            right: 0;
            padding-top: 6px;
        }
    }
}

.grey-box {
    margin: 0;
    padding: 5px 10px;
    background-color: hsl(0, 0%, 98%);
    border: 1px solid hsl(0, 0%, 87%);
    border-radius: 4px;

    list-style-type: none;
}

.white-box {
    background-color: hsl(0, 0%, 100%);
    border: 1px solid hsl(0, 0%, 87%);
}

.guest-avatar {
    position: relative;
    overflow: hidden;

    &::after {
        content: " ";
        background-color: hsl(0, 0%, 47%);
        position: absolute;
        bottom: -30%;
        right: -30%;
        width: 50%;
        height: 50%;
        transform: rotate(45deg);
    }
}

@media (width < $md_min) {
    /* Override Bootstrap's responsive grid to display input at full width */
    .input-append .stream-list-filter {
        /* Input width = 100% - 10px margin x2 - 6px padding x2 - 1px border x2. */
        width: calc(100% - 34px);
        margin-left: 10px;
    }
    .input-append .topic-list-filter {
        /* Input width = 100% - 11px margin x2 - 6px padding x2 - 1px border x2. */
        width: calc(100% - 36px);
        margin-left: 11px;
        margin-bottom: 5px;
    }
}

.stream-selection-header-colorblock {
    /* box-shadow: 0px 2px 3px hsl(0, 0%, 80%); */
    box-shadow: inset 0 2px 1px -2px hsl(0, 0%, 20%),
        inset 2px 0 1px -2px hsl(0, 0%, 20%),
        inset 0 -2px 1px -2px hsl(0, 0%, 20%);
    width: 10px;
    border-radius: 3px 0 0 3px;
    border-bottom: 0;
}

.stream_header_colorblock {
    @extend .stream-selection-header-colorblock;
    margin-bottom: 5px;
    z-index: 1;
}

.edit-controls .fa-angle-right,
.topic_stream_edit_header .fa-angle-right {
    font-size: 0.9em;
    -webkit-text-stroke: 0.05em;
    position: relative;
    margin: 0 5px;
    top: 9px;
}

/* Standard loading indicators generated by the loading.ts API */
.loading_indicator_spinner {
    /* If you change these, make sure to adjust the constants in
       loading.make_indicator as well */
    height: 38px;
    width: 38px;
    float: left;
}

.loading_indicator_text {
    /* If you change these, make sure to adjust the constants in
       loading.make_indicator as well */
    margin-left: 5px;
    font-size: 1.2em;
    font-weight: 300;
    line-height: 38px;
}

.upgrade-tip {
    width: max-content;

    &::before {
        content: "\f135";
    }

    &:hover {
        color: hsl(0, 0%, 20%);
        border: 1px solid hsl(49, 20%, 60%);
        box-shadow: 0 0 4px hsla(199, 79%, 56%, 0.2);

        text-decoration: none;
    }
}

.upgrade-tip,
.tip {
    position: relative;
    display: block;
    background-color: hsl(46, 63%, 95%);
    border: 1px solid hsl(49, 20%, 84%);
    border-radius: 4px;
    padding: 10px;
    margin: 10px 0;
    font-size: 1rem;
    line-height: 1.5;
    color: hsl(0, 0%, 40%);

    &::before {
        display: inline;
        margin-right: 8px;

        font-family: FontAwesome;
        font-weight: 600;
    }
}

.tip::before {
    content: "\f0a2";
}

/* We are mostly consistent in how we style
   unread counts, except for starred messages.
   This is the common section.
*/
.unread_count {
    float: right;
    padding: 0 4px;
    height: 16px;
    line-height: 16px;
    font-size: 12px;
    font-weight: normal;
    letter-spacing: 0.6px;
    border-radius: 4px;
    background-color: hsl(105, 2%, 50%);
    color: hsl(0, 0%, 100%);
}

/* Implement the web app's default-hidden convention for alert
   elements.  Portico pages lack this CSS and thus show them by
   default. */
.alert {
    display: none;

    &.show {
        display: block;
    }

    &#organization-status {
        margin: 20px;
    }

    &.stream_create_info {
        margin: 10px 10px 0 10px;
    }

    .bankruptcy_unread_count {
        font-weight: 600;
    }
}

.white_zulip_icon_without_text {
    display: inline-block;
    background-image: url(../../static/images/logo/white-zulip-logo-without-text.svg);
    background-size: cover;
}

.spectator-view {
    /* Add this class to elements which a
     * spectator cannot use. */
    .hidden-for-spectators {
        display: none !important;
    }

    .only-visible-for-spectators {
        display: unset;
    }
}

.animated-purple-button {
    color: hsl(0, 0%, 100%);
    transition: all 80ms linear;
    box-shadow: none;
    /* This color just passes WCAG AA */
    background-color: hsl(240, 96%, 68%);
    cursor: pointer;
    border: none;
    border-radius: 4px;
    text-align: center;
    white-space: nowrap;

    &:hover {
        /* This color passes WCAG AAA */
        background-color: hsl(240, 41%, 50%);
        box-shadow: 0 1px 4px hsl(0, 0%, 0%, 0.3);
    }
}