$gray: gray;
$blue: hsla(204, 70%, 53%, 0.7);
$red: rgba(206, 0, 0, 0.7);
$green: rgba(0, 160, 27, .7);
$yellow: rgba(220, 200  , 0, .9);
$violet: rgba(255, 31, 255, .7);


%wvStudyIsland {
    margin: 1rem 1rem 1rem 1rem;
    border: 0.3rem solid $gray;
}

%wvStudyIsland__header {
    background-color: $gray;
    padding: 0.5rem 0.5rem 0.8rem 0.5rem;
    line-height: 1.35rem;
    width: 100%;
}
.wvStudyIsland__actions {
    float: right;

    // Compensate header padding (since the inner download study button
    // actually has margin).
    margin-top: -0.8rem;
    margin-right: -0.8rem;
}

.wvStudyIsland__actions--oneCol {
    float: none;
    text-align: center;
}

.wvStudyIsland__main {
    padding: 0.4rem; // 0.7rem - 0.3rem (2px transparent border + 1px margin)
    color: hsl(0, 0%, 100%);
    width: 100%; // let some space for the 4-columns based items
}


// Color modifiers
.wvStudyIsland--blue {
    @extend %wvStudyIsland;
    border-color: $blue;
}

.wvStudyIsland__header--blue {
    @extend %wvStudyIsland__header;
    background-color: $blue;
}

.wvStudyIsland--red {
    @extend %wvStudyIsland;
    border-color: $red;
}

.wvStudyIsland__header--red {
    @extend %wvStudyIsland__header;
    background-color: $red;
}

.wvStudyIsland--green {
    @extend %wvStudyIsland;
    border-color: $green;
}

.wvStudyIsland__header--green {
    @extend %wvStudyIsland__header;
    background-color: $green;
}

.wvStudyIsland--yellow {
    @extend %wvStudyIsland;
    border-color: $yellow;
}

.wvStudyIsland__header--yellow {
    @extend %wvStudyIsland__header;
    background-color: $yellow;
}

.wvStudyIsland--violet {
    @extend %wvStudyIsland;
    border-color: $violet;
}

.wvStudyIsland__header--violet {
    @extend %wvStudyIsland__header;
    background-color: $violet;
}