element-web-Github/res/css/views/elements/_UseCaseSelectionButton.pcss

/*
Copyright 2024 New Vector Ltd.
Copyright 2022 The Matrix.org Foundation C.I.C.

SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only
Please see LICENSE files in the repository root for full details.
*/

.mx_UseCaseSelectionButton {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: $spacing-24 $spacing-16;
    background: $background;
    border: 1px solid $quinary-content;
    border-radius: 8px;
    text-align: center;
    position: relative;
    transition-property: box-shadow, transform;
    transition-duration: 300ms;

    .mx_UseCaseSelectionButton_icon {
        /* workaround: design expects a layering of two colors */
        background: linear-gradient(0deg, rgba(172, 59, 168, 0.15), rgba(172, 59, 168, 0.15)), #ffffff;
        border-radius: 14px;
        padding: $spacing-8;
        margin-bottom: $spacing-16;

        &::before {
            content: "";
            display: block;
            /* this has to remain the same color across all themes,
               as its background has a fixed color as well */
            background: #1e1e1e;
            mask-position: center;
            mask-repeat: no-repeat;
            mask-size: contain;
            width: 22px;
            height: 22px;
        }

        &.mx_UseCaseSelectionButton_messaging::before {
            mask-image: url("$(res)/img/element-icons/chat-bubble.svg");
        }

        &.mx_UseCaseSelectionButton_work::before {
            mask-image: url("$(res)/img/element-icons/view-community.svg");
        }

        &.mx_UseCaseSelectionButton_community::before {
            mask-image: url("@vector-im/compound-design-tokens/icons/public.svg");
            mask-size: 24px;
        }
    }

    &:hover,
    &:focus {
        box-shadow: 0 $spacing-4 $spacing-8 rgba(0, 0, 0, 0.08);
        transform: translate(0, -$spacing-8);
    }

    .mx_UseCaseSelectionButton_selectedIcon {
        right: -12px;
        top: -12px;
        position: absolute;
        border-radius: 24px;
        background: $accent;
        padding: 6px;
        transition-property: opacity, transform;
        transition-duration: 150ms;
        opacity: 0;
        transform: scale(0.6);

        &::before {
            content: "";
            display: block;
            background: $background;
            mask-position: center;
            mask-repeat: no-repeat;
            mask-size: contain;
            width: 12px;
            height: 12px;

            mask-image: url("@vector-im/compound-design-tokens/icons/check.svg");
        }
    }

    &.mx_UseCaseSelectionButton_selected {
        border: 2px solid $accent;
        padding: calc($spacing-24 - 1px) calc($spacing-16 - 1px);
        box-shadow: 0 $spacing-4 $spacing-8 rgba(0, 0, 0, 0.08);

        .mx_UseCaseSelectionButton_selectedIcon {
            opacity: 1;
            transform: scale(1);
        }
    }
}