iwmlib/lib/card/test/example/_theme/sass/card.scss

@import '_mixins.scss';
@import '_variables.scss';
@import '_essentials.scss';
@import '_overrides.scss';
@import '_icons.scss';

/**
*   The card.scss is responsible for styling the top level of the card.
*   
*   + Info-Card
*       ++ Header
*        +++ Thubnail
*        +++ Overview
*       ++ Subcards-Container
*        +++ n * Subcards
*/

.info-card {
    font-family: $font-family;
    color: white;
    background-color: #333;
    box-shadow: 1px 3px 8px rgba(0, 0, 0, 0.5);
    border-radius: 3px;

    .ui {
        width: 100%;
        display: flex;
        justify-content: flex-end;
        padding: 10px;
        z-index: 11;
        position: absolute;
        top: 0;
    }

    .speech {
        width: 52px;
        height: 52px;
    }

    &:before {
        content: '';

        display: block;
        content: '';
        position: absolute;
        z-index: -1;

        // SIZE

        $border: 16px;
        border-radius: 3px;

        top: -$border/2;
        left: -$border/2;
        width: calc(100% + #{$border});
        height: calc(100% + #{$border});

        // BACKGROUND

        box-shadow: 0 0 15px #008bd2;

        background: repeating-linear-gradient(
            -45deg,
            #008bd2,
            #008bd2 20px,
            #33a2db 20px,
            #33a2db 40px
        );

        // ANIMATION
        background-size: 56px 56px; /* This is unique for this background, need to find a pattern and develop a formula */
        background-position-x: 0%;
        -webkit-animation: 'slide' 20s infinite linear forwards;

        opacity: 0;
        transition: opacity 1s;
    }

    &.speech-plugin-is-reading {
        .speech.button:before {
            content: 'stop';
        }

        &:before {
            opacity: 1;
        }
    }

    @-webkit-keyframes 'slide' {
        0% {
            background-position-x: 0%;
        }
        100% {
            background-position-x: 100%;
        }
    }

    .img-overlay {
        position: absolute;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.3);
        z-index: 200;

        //padding: $default-space;

        display: none;
        align-items: center;
        justify-content: center;

        img {
            // padding: $default-space;
            width: 100%;
            height: 100%;
            object-fit: contain;
        }

        @keyframes pulse {
        }
    }

    nav {
        z-index: 200;
        position: absolute;
        top: $default-space;
        right: $default-space;

        > * {
            margin-right: $default-space / 3;
        }
    }

    a {
        // display: inline-block;
        color: $link-color;

        &:hover {
            color: $link-color;
        }
    }

    .mainview {
        display: flex;
        flex-direction: column;
        height: 100%;

        //Inherits from info-card
        border-radius: inherit;
    }

    p {
        font-size: $regular-font-size;
    }

    header {
        height: 35%;
        color: $white;
        background: linear-gradient(to top, $gray-dark, $gray 200%);
        padding: $default-space * 3;
        padding-bottom: $default-space;
        border-radius: inherit;

        display: grid;
        grid-template-columns: 1fr 2fr;
        grid-gap: 20px;

        //box-shadow: $near-hover-box-shadow;
        z-index: 1;

        h1 {
            -webkit-margin-before: 0;
            font-size: $title-font-size;
            font-weight: 500;
            margin-bottom: -2px;
        }

        .overview {
            // margin-left: $default-space;
            padding: 0 $default-space;
            margin-top: 0;
            display: flex;
            flex-direction: column;
            grid-column-start:2;
            //justify-content: flex-end;
        }

        p {
            font-weight: 400;
        }

        p.misc {
            font-size: $regular-font-size;
            font-style: italic;
            font-weight: 300;
            opacity: 0.5;
            margin-bottom: 0.641em;

            // // Added an icon before the build date.
            // // Just for testing.
            // &:before {
            //     opacity: 0.5;
            //     position: relative;
            //     top: 5px;
            //     margin-right: 10px;
            //     font-style: normal;
            //     content: "build";
            //     font: {
            //         family: $material-icons-font-family;
            //     };
            // }
        }
    }

    .thumbnail-wrapper {
        overflow: hidden;
        border-radius: $default-radius;

        &:before {
            content: ' ';
            position: absolute;
            width: 100%;
            height: 100%;

            // z-index: 1;
            box-shadow: inset 0 0 3px rgba(0, 0, 0, 0.8);
        }

        // Discuss: I added this for the thumbnail zoom icon
        // explicitly. I got rid of the .zoomicon class, because
        // everything was a zoomicon.
        // Now every icon is just an icon. The icons directly on the
        // subcards are card-icons.
        //
        // But a name for icons that can be on content elements of any
        // card page is yet to be found. (e.g. zoomables).
        .button {
            position: absolute;
            bottom: 0;
            right: 0;
        }
    }

    .thumbnail {
        height: 100%;
        min-width: 100%;
        object-fit: cover;
        overflow: hidden;
    }

    /*
    This mixin selects the elements of $selector
    and adjust the style it there are n children of this selector 
    inside the parent.
    */
    @mixin childCountIs($selector, $n) {
        // #{$var} just prints the string to css.
        #{$selector}:first-child:nth-last-child(#{$n}),
        #{$selector}:first-child:nth-last-child(#{$n}) ~ #{$selector} {
            // @content prints the content to the mixin.
            @content;
        }
    }

    .subcards-container {
        // flex: 1;
        background-color: $gray-dark;
        height: 65%;

        // We should use css-grids instead of flexbox here:
        // https://www.w3.org/TR/css-grid-1/
        //"Unlike Flexible Box Layout, which is single-axis–oriented,
        // Grid Layout is optimized for 2-dimensional layouts:
        // those in which alignment of content is desired in both dimensions."
        display: grid;

        // Not sure why, but 1fr does not behave in the rows as expected:
        // Expectation: All space is available and therefore 1fr means
        //              Half of the space available.
        grid-auto-rows: 1fr;
        grid-gap: $default-space;
        padding: $default-space * 3;
        padding-top: $default-space;

        // The fr stands for fraction and should be preferably used with css grids.
        grid-template-columns: repeat(9, 1fr);
        grid-template-areas: '. tl tl tl . tr tr tr .' '. bl bl bl . br br br .';

        @include childCountIs('.subcard-wrapper', 5) {
            &:nth-child(4) {
                grid-area: bl;
            }

            &:nth-child(5) {
                grid-area: br;
            }
        }

        @include childCountIs('.subcard-wrapper', 4) {
            &:first-child {
                grid-area: tl;
            }

            &:nth-child(2) {
                grid-area: tr;
            }

            &:nth-child(3) {
                grid-area: bl;
            }

            &:nth-child(4) {
                grid-area: br;
            }
        }

        @include childCountIs('.subcard-wrapper', 3) {
            &:first-child {
                grid-area: tl;
            }

            &:nth-child(2) {
                grid-area: tr;
            }

            &:nth-child(3) {
                grid-row: 2;
                grid-column: 4 / 7;
            }
        }

        .subcard-wrapper {
            padding: 0;
        }

        > div {
            width: auto;
            grid-column: span 3;
        }
    }
}

.card-icon,
.zoomable-icon {
    position: absolute;
    bottom: 0;
    right: 0;
}

.speech-only-text {
    opacity: 0;
    position: absolute;
    user-select: none;
    pointer-events: none;
    z-index: -1;
}

figure {
    position: relative;
    border: 3px solid $white;
    box-shadow: $near-hover-shadow;
    -webkit-margin-before: 0;
    -webkit-margin-after: 0;
    -webkit-margin-start: 0;
    -webkit-margin-end: 0;
}

figure .icon {
    position: absolute;
    bottom: 0;
    right: 0;
    border-radius: $default-radius 0 0 0;
}

.view-button.icon {
    position: absolute;
    bottom: 0;
    right: 0;
    padding: 26px 26px;
    margin: -23px -13px;

    // padding: $default-space/2 $default-space;

    &.inverted {
        // background-color: transparent;

        &:before {
            color: $white;
        }
    }

    &:before {
        color: $gray-dark;
        font-size: $large-font-size;
        text-shadow: 0 0 3px rgba(0, 0, 0, 0.2);
    }
}

.icon {
    min-width: 44px;
    min-height: 44px;
    color: $black;
    background-color: $white;
    pointer-events: none;

    &.button {
        pointer-events: all;
        border-radius: $default-radius;

        &.corner-button {
            border-radius: 0;

            &.bottom-right {
                border-top-left-radius: $default-radius;
            }
        }
    }

    &.inverted {
        color: $white;
        background-color: $black;
    }

    &.transparent-background {
        background-color: transparent;
    }

    &.active {
        color: $white;
        background-color: $link-color;
    }

    &:before {
        // This is a nice feature of SASS
        // It lets you split attributes into
        // namespaces.
        //
        // font-family:#, font-weight:#, font-size:#
        // ==> font {family: #, weight: #, size: # }
        font: {
            family: $material-icons-font-family;
            size: 36px;
        }

        @include beforeClass('.info') {
            content: 'info_outline';
        }

        @include beforeClass('.close') {
            content: 'close';
        }

        @include beforeClass('.zoom') {
            content: 'search';
        }

        @include beforeClass('.speech') {
            content: 'record_voice_over';
        }

        @include beforeClass('.language') {
            content: 'language';
        }
    }
}

.info-card.debug {
    .view-button {
        background-color: rgba(255, 0, 0, 0.5) !important;

        &.disabled {
            filter: grayscale(1);
        }
    }
}