element-web/res/css/views/right_panel/_BaseCard.pcss

/*
Copyright 2020 The Matrix.org Foundation C.I.C.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

.mx_BaseCard {
    --BaseCard_EventTile_line-padding-block: 2px;
    --BaseCard_EventTile-spacing-inline: 36px;
    --BaseCard_header-button-size: 28px;

    overflow: hidden;
    display: flex;
    flex-direction: column;
    flex: 1;
    font-size: var(--cpd-font-size-body-md);

    .mx_BaseCard_header {
        height: 64px;
        padding: var(--cpd-space-3x);
        box-sizing: border-box;
        /* changing the color from $separator to transparent as it is
           the best visual output during the transition period. This will be
           reintroduced at a later stage. */
        border-bottom: 1px solid transparent;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: var(--cpd-space-2x);
        flex-shrink: 0;

        > h2 {
            margin: 0 44px;
            font: var(--cpd-font-body-sm-semibold);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .mx_BaseCard_header_title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: calc(100% - 38px);
            height: 24px;
            flex: 1;

            .mx_BaseCard_header_title_heading {
                color: $primary-content;
                overflow: hidden;
                white-space: nowrap;
                text-overflow: ellipsis;
            }

            .mx_BaseCard_header_title_button--option {
                position: relative;
                width: var(--BaseCard_header-button-size);
                height: var(--BaseCard_header-button-size);

                &::after {
                    content: "";
                    position: absolute;
                    inset-block-start: 0;
                    inset-inline-start: 0;
                    height: 100%;
                    width: 100%;
                    mask-repeat: no-repeat;
                    mask-position: center;
                    mask-image: url("$(res)/img/element-icons/message/overflow-large.svg");
                    background-color: $secondary-content;
                }

                &:hover::after {
                    background-color: $primary-content;
                }
            }
        }
    }

    .mx_AutoHideScrollbar {
        min-height: 0;
        width: 100%;
        height: 100%;
    }

    .mx_BaseCard_Group {
        margin: $spacing-20 0 $spacing-16;

        & > * {
            margin-left: $spacing-12;
            margin-right: $spacing-12;
        }

        > h2 {
            color: $tertiary-content;
            font: var(--cpd-font-body-sm-medium);
            margin: $spacing-12;
        }

        .mx_BaseCard_Button {
            padding: 10px;
            padding-inline-start: $spacing-12;
            margin: 0;
            position: relative;
            font: var(--cpd-font-heading-sm-medium);
            height: 20px;
            overflow: hidden;
            white-space: nowrap;
            text-overflow: ellipsis;
            display: flex;

            .mx_BaseCard_Button_sublabel {
                color: $tertiary-content;
                margin-left: auto;
            }

            &:hover {
                background-color: rgba(141, 151, 165, 0.1);
            }

            &.mx_AccessibleButton_disabled {
                padding-right: $spacing-12;
                &::after {
                    content: unset;
                }
            }
        }
    }

    .mx_BaseCard_footer {
        padding-top: $spacing-4;
        text-align: center;
        display: flex;
        justify-content: space-around;

        .mx_AccessibleButton_kind_secondary {
            color: $secondary-content;
            background-color: rgba(141, 151, 165, 0.2);
            font: var(--cpd-font-body-md-semibold);
        }

        .mx_AccessibleButton_disabled {
            cursor: not-allowed;
        }
    }
}

.mx_BaseCard_back,
.mx_BaseCard_close {
    position: relative;
    background-color: var(--cpd-color-bg-subtle-secondary);
    width: var(--BaseCard_header-button-size);
    height: var(--BaseCard_header-button-size);
    border-radius: 50%;

    &::before {
        content: "";
        position: absolute;
        height: inherit;
        width: inherit;
        top: 0;
        left: 0;
        mask-repeat: no-repeat;
        mask-position: center;
        background-color: var(--cpd-color-icon-secondary);
    }
}

.mx_BaseCard_back {
    order: 0; /* always first! */
    &::before {
        transform: rotate(90deg);
        mask-size: 22px;
        mask-image: url("$(res)/img/feather-customised/chevron-down.svg");
    }
}

.mx_BaseCard_close {
    order: 999; /* always last */
    &::before {
        mask-image: url("$(res)/img/icons-close.svg");
    }
}

.mx_ContextualMenu_wrapper.mx_BaseCard_header_title {
    .mx_ContextualMenu {
        position: initial;

        span:first-of-type {
            font-weight: var(--cpd-font-weight-semibold);
            font-size: inherit;
            color: $primary-content;
        }

        font: var(--cpd-font-body-sm-regular);
        color: $primary-content;
        padding-top: 10px;
        padding-bottom: 10px;

        border: 1px solid $quinary-content;
        box-shadow: 0px 1px 3px rgba(23, 25, 28, 0.05);
    }

    .mx_ContextualMenu_chevron_top {
        left: auto;
        right: 22px;
        border-bottom-color: $quinary-content;

        &::after {
            content: "";
            border: inherit;
            border-bottom-color: $menu-bg-color;
            position: absolute;
            top: 1px;
            left: -8px;
        }
    }
}