.draggy-boxy-thing-hover (@color: #ffa500) {
    border-color: @color;
    @darker: darken(@color, 11%);
    box-shadow: 0 0 4px @darker;
    -moz-box-shadow: 0 0 4px @darker;
    -ms-box-shadow: 0 0 4px @darker;
    -o-box-shadow: 0 0 4px @darker;
    -webkit-box-shadow: 0 0 4px @darker;
}

.draggy-boxy-thing {
    .draggable-box,
    .cards-area {
        background: #eee;
        border: 1px solid #ccc;
        border-bottom: 1px solid #aaa;

        box-shadow: 0 1px 2px #ccc;
        -moz-box-shadow: 0 1px 2px #ccc;
        -webkit-box-shadow: 0 1px 2px #ccc;
    }

    // TODO(jack): Make this work for the orderer too.
    // Right now don't do this for the orderer because it uses
    // more complicated positioning that this would break
    .cards-area {
        .above-scratchpad;
    }

    .card {
        .perseus-interactive;

        background-color: #fff;
        border: 1px solid #b9b9b9;
        border-bottom-color: #939393;
        border-radius: 4px;
        -moz-border-radius: 4px;
        -webkit-border-radius: 4px;
        -webkit-user-select: none;
        -khtml-user-select: none;
        -moz-user-select: none;
        -o-user-select: none;
        cursor: pointer;
        touch-action: none;

        &.placeholder {
            background:#ddd;
            border: 1px solid #ccc;
        }

        &.drag-hint {
            background: none;
            border: 1px dashed #aaa;
            cursor: auto;

            &:hover {
                border-color: #aaa;
                box-shadow: none;
            }
        }

        &.dragging {
            background-color: #ffedcd;
            opacity: 0.8;
            filter: opacity(0.8);
        }

        &.stack {
            z-index: auto;
            &:after {
                content: " ";
                background-color: #fff;
                border: 1px solid #b9b9b9;
                border-bottom-color: #939393;
                border-radius: 4px;
                -moz-border-radius: 4px;
                -webkit-border-radius: 4px;
                height: 100%;
                width: 100%;
                z-index: -1;
                top: 1px;
                left: 1px;
                position: absolute;
            }
        }

        &:hover {
            .draggy-boxy-thing-hover();
        }
    }
}

// TODO(benkomalo): ideally all of these would be removed as all of the other
// sortable styles have been moved to inline styles using Aphrodite. However,
// these are all hacky styles that reach down into descendents in ways that
// they probably shouldn't, so Aphrodite doesn't support it. This will require
// a larger refactoring to wire down options to nested `Renderer`s so they can
// have their styling modified.
.perseus-sortable {
    div.paragraph {
        margin: 0;
    }

    .perseus-sortable-draggable {
        &:before {
            // Vertical-align, part 1
            content: "";
            display: inline-block;
            height: 100%;
            vertical-align: middle;
        }

        & > div {
            // Vertical-align, part 2
            display: inline-block;
            font-size: 14px;
            max-width: 100%;
            vertical-align: middle;
        }
    }

    .perseus-sortable-draggable-unpadded {
        img {
            vertical-align: bottom;
        }
    }
}