$courseindex-link-color: $list-group-action-color !default;
$courseindex-link-color-selected: color-contrast($primary) !default;
$courseindex-link-dimmed-color: $gray-600 !default;
$courseindex-link-hover-color: black !default;
$courseindex-item-dragging-bg: shift-color($info, -90%) !default;
$courseindex-item-dragging-border: shift-color($info, -70%) !default;
$courseindex-item-active-border: $gray-300 !default;
$courseindex-item-active-bg: $gray-100 !default;
$courseindex-item-page-bg: $primary !default;
$courseindex-item-padding-y: 0.5rem;
$courseindex-item-padding-x: 0.5rem;
$courseindex-item-radius: $border-radius !default;
$courseindex-item-current: $primary !default;

@mixin courseindex-item-hover() {
    &:hover,
    &:focus {
        color: $courseindex-link-hover-color;

        .courseindex-link,
        .courseindex-chevron {
            color: $courseindex-link-hover-color;
            cursor: pointer;
        }
        &.dimmed {
            color: $courseindex-link-hover-color;

            .courseindex-link,
            .courseindex-chevron {
                color: $courseindex-link-hover-color;
            }
        }
        &.draggable {
            cursor: move;
        }
        &.pageitem,
        .pageitem {
            background-color: darken($courseindex-item-page-bg, 7.5%);
            color: darken($courseindex-link-color-selected, 10%);
            .courseindex-link,
            .courseindex-chevron {
                color: darken($courseindex-link-color-selected, 10%);
                a {
                    color: darken($courseindex-link-color-selected, 10%);
                }
            }
        }
    }
}

@mixin courseindex-item-dragging() {
    &.dragging {
        border: $border-width solid $courseindex-item-dragging-border;
        background-color: $courseindex-item-dragging-bg;
    }
}

.courseindex {
    // Both activity and section items.
    .courseindex-item {
        padding: $courseindex-item-padding-y $courseindex-item-padding-x;
        border: $border-width solid transparent;
        @include border-radius($courseindex-item-radius);

        &.courseindex-section-title a {
            font-weight: bold;
        }

        .icons-collapse-expand {
            padding-right: 4px;
        }

        .courseindex-link,
        .courseindex-chevron {
            color: $courseindex-link-color;
            &:hover,
            &:focus {
                color: $courseindex-link-hover-color;
                text-decoration: none;
            }
        }

        @include courseindex-item-hover();

        @include courseindex-item-dragging();

        &.active {
            background-color: $courseindex-item-active-bg;
            border-color: $courseindex-item-active-border;
        }

        // Hidden elements.
        &.dimmed {
            color: $courseindex-link-dimmed-color;

            .courseindex-link,
            .courseindex-chevron {
                color: $courseindex-link-dimmed-color;
            }

            .pageitem {
                .courseindex-link,
                .courseindex-chevron {
                    color: $courseindex-link-color-selected;
                }
            }
        }

        // Restrictions icon.
        .courseindex-locked {
            display: none;
        }
        &.restrictions {
            .courseindex-locked {
                display: block;
            }

            // Current restricted item.
            &.pageitem {
                color: $courseindex-link-color-selected;
                a {
                    color: $courseindex-link-color-selected;
                }
            }

        }

        // Current page item.
        &.pageitem {
            background-color: $courseindex-item-page-bg;
            color: $courseindex-link-color-selected;
            scroll-margin: 6rem;
            a {
                color: $courseindex-link-color-selected;
            }
        }

        // Completion.
        .completioninfo {
            min-width: 24px;

            &.completion_complete {
                color: $success;
            }

            &.completion_fail {
                color: $danger;
            }
        }

        &.indented {
            margin-left: map-get($spacers, 3);
        }
    }

    // The full section collapsable.
    .courseindex-section {

        @include courseindex-item-dragging();

        border-left: solid 3px transparent;

        .current-badge {
            line-height: $line-height-base;
            display: none;
        }

        &.current {
            border-left: solid 3px $courseindex-item-current;

            .current-badge {
                display: inline-block;
            }

            /* Skip current badges in delegated sections. */
            .delegated-section .current-badge {
                display: none;
            }
        }

        &.dropready .courseindex-item-content {
            /* Extra dropzone space */
            padding-bottom: 1em;
        }

        .courseindex-sectioncontent {
            .courseindex-item {
                padding-left: $courseindex-item-padding-x;
            }
        }
        &.delegated-section {
            width: 100%;
        }
    }

    // General icons size.
    .icon {
        font-size: 10px;
    }

    // Element visible only on editing mode.
    .d-flex-noedit {
        display: none;
    }
    &.editing {
        .d-flex-noedit {
            display: flex;
        }
    }

    // Placeholders.
    .placeholders {
        .rounded-circle {
            height: 1rem;
            width: 1rem;
        }

        .w-100 {
            height: 1rem;
            margin: 0.5rem 0;
        }
    }
}
