.folder {
    display: flex;
    flex-direction: column;
}

.header-dragged-over {
    position: relative;

    &::after {
        position: absolute;
        inset: 0;
        pointer-events: none;
        content: "";
        border: 2px solid var(--theme-colors-primary);
        border-radius: var(--theme-radius-md);
        opacity: 0.8;
    }
}

.header {
    display: flex;
    gap: var(--theme-spacing-md);
    align-items: center;
    width: 100%;
    padding: var(--theme-spacing-sm) var(--theme-spacing-md);
    font: inherit;
    color: inherit;
    text-align: left;
    cursor: pointer;
    background: transparent;
    border: 0;
    border-radius: var(--theme-radius-md);

    &:hover {
        background-color: var(--theme-colors-background);
    }
}

.chevron {
    display: flex;
    flex-shrink: 0;
    align-items: center;
}

.collapse {
    overflow: hidden;
}

.name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.count {
    flex-shrink: 0;
}

.children {
    padding-left: var(--theme-spacing-md);
}

.tree-children {
    padding-left: var(--playlist-folder-tree-indent, 16px);
}

.tree-branch {
    position: relative;
    padding-left: calc(var(--playlist-folder-tree-indent, 16px) - 4px);

    &::before {
        position: absolute;
        top: 0;
        bottom: 50%;
        left: 0;
        width: calc(var(--playlist-folder-tree-indent, 16px) - 8px);
        content: "";
        border-bottom: 1px solid var(--playlist-folder-tree-line-color, var(--theme-colors-border));
        border-left: 1px solid var(--playlist-folder-tree-line-color, var(--theme-colors-border));
    }

    &:not(:last-child)::after {
        position: absolute;
        top: 50%;
        bottom: 0;
        left: 0;
        content: "";
        border-left: 1px solid var(--playlist-folder-tree-line-color, var(--theme-colors-border));
    }
}

.navigation {
    display: flex;
    flex-direction: column;
}

.nav-folder {
    display: flex;
    gap: var(--theme-spacing-md);
    align-items: center;
    width: 100%;
    padding: var(--theme-spacing-xs) var(--theme-spacing-md);
    font: inherit;
    color: inherit;
    text-align: left;
    cursor: pointer;
    background: transparent;
    border: 0;
    border-radius: var(--theme-radius-md);

    &:hover {
        background-color: var(--theme-colors-surface);
    }
}

.nav-folder-icon {
    display: flex;
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
    width: 3rem;
    min-width: 3rem;
    height: 3rem;
    background-color: var(--theme-colors-surface);
    border-radius: var(--theme-radius-md);
}

.nav-chevron {
    flex-shrink: 0;
    opacity: 0.6;
}

.root-drop-target-dragged-over {
    position: relative;

    &::after {
        position: absolute;
        inset: 0;
        pointer-events: none;
        content: "";
        border: 2px solid var(--theme-colors-primary);
        border-radius: var(--theme-radius-md);
        opacity: 0.8;
    }
}