.course-item {
    padding: 1em;
    margin-bottom: 1em;

    &.course-item-module {
        background: rgba( 0, 0, 0, 0.05 );
        border: 1px solid rgba(0,0,0,0.05);
    }

    &.course-item-lesson {
        border: 1px solid rgba(0,0,0,0.05);
    }

    &.course-item-not-saved {
        background: lighten(red, 45%);
    }

    .course-item-text,
    input {
        line-height: 40px;
        height: 40px;
    }

    .module-lessons {
        margin-top: 1em;
        background: white;

        .course-item {
            margin-bottom: 0;
        }
    }

    .course-item-errors {
        margin: 0.5em 0;
        background: lighten(red, 35%);
        position: relative;

        button {
            width: 25px;
            height: 25px;
            line-height: 25px;
            font-size: 12px;
            padding: 0;
            text-align: center;
            position: absolute;
            top: 5px;
            right: 5px;
        }

        ul {
            padding: 0 50px 0 0;
            margin: 0;

            li {
                list-style: none;
                padding: 0.5em;
                color: darken(red, 35%);
                line-height: 25px;
            }
        }
    }
}