/* src/components/basic/XWUIItemGroup/XWUIItemGroup.css */
/**
 * XWUIItemGroup Component Styles
 * Container for multiple XWUIItems that handles lists/trees of items
 * 
 * Style Dependencies:
 * - Base: reset.css, typography.css, utilities.css
 * - Brand: brand/xwui/brand.css
 * - Style: style/modern/spacing.css
 * - Theme: theme/colors/{selected-theme}.css (MANDATORY - provides all color variables)
 * - Theme: theme/accents/{selected-accent}.css (MANDATORY - provides accent color variables)
 * - Lines: theme/lines/balanced.css (global border widths)
 * - Roundness: theme/roundness/rounded.css (global roundness)
 * - Typography: theme/typography/*.css
 */

.xwui-item-group {
    display: flex;
    flex-direction: column;
    width: 100%;
}

.xwui-item-group-ltr {
    direction: ltr;
}

.xwui-item-group-rtl {
    direction: rtl;
}

.xwui-item-group-item {
    width: 100%;
    min-width: 0;
}

.xwui-item-group.xwui-item-group--grid {
    display: grid;
    flex-direction: unset;
    gap: var(--xwui-item-group-gap, var(--spacing-md, 1rem));
    align-content: start;
    width: 100%;
}

.xwui-item-group.xwui-item-group--grid:not(.xwui-item-group--axis-h) {
    grid-template-columns: repeat(var(--xwui-item-group-cols, 1), minmax(0, 1fr));
}

.xwui-item-group.xwui-item-group--grid.xwui-item-group--axis-h {
    grid-auto-flow: column;
    grid-template-rows: repeat(var(--xwui-item-group-cols, 1), auto);
    grid-template-columns: unset;
}

.xwui-item-group.xwui-item-group--grid.xwui-item-group--flow-column:not(.xwui-item-group--axis-h) {
    grid-auto-flow: column;
    grid-template-rows: repeat(var(--xwui-item-group-rows, 1), auto);
}

.xwui-item-group.xwui-item-group--grid.xwui-item-group--flow-row:not(.xwui-item-group--axis-h) {
    grid-auto-flow: row;
}

.xwui-item-group.xwui-item-group--grid.xwui-item-group--flow-column.xwui-item-group--flow-dense:not(.xwui-item-group--axis-h) {
    grid-auto-flow: column dense;
}

.xwui-item-group.xwui-item-group--grid.xwui-item-group--flow-row.xwui-item-group--flow-dense:not(.xwui-item-group--axis-h) {
    grid-auto-flow: row dense;
}

.xwui-item-group--inline-grid .xwui-item-group-item {
    width: auto;
}

.xwui-item-nested-group {
    margin-left: var(--spacing-md, 1rem);
    margin-top: var(--spacing-xs, 0.25rem);
}

.xwui-item-group-rtl .xwui-item-nested-group {
    margin-left: 0;
    margin-right: var(--spacing-md, 1rem);
}

/* Note: Dark theme support is handled automatically via theme/colors/{theme}.css files */


/* List-mode gap. The fallback is the 1px gap XWUIItem.css already gives every
   .xwui-item-group, so an untouched group renders exactly as before; set
   --xwui-item-group-gap on any ancestor to space the rows. */
.xwui-item-group:not(.xwui-item-group--grid),
.xwui-item-group-section-items {
    gap: var(--xwui-item-group-gap, calc(var(--spacing-xs, 4px) / 4));
}

/* Sections: header + rows. Tokens: --xwui-item-group-section-{gap,pad-y,
   pad-x,font,size,weight,tracking,transform,color,count-color,chevron-size}. */
.xwui-item-group-section,
.xwui-item-group-section-items {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.xwui-item-group-section + .xwui-item-group-section {
    margin-top: var(--xwui-item-group-section-gap, 12px);
}

.xwui-item-group-section-header {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    margin: 0;
    padding: var(--xwui-item-group-section-pad-y, 6px) var(--xwui-item-group-section-pad-x, 8px);
    border: 0;
    background: none;
    text-align: start;
    font-family: var(--xwui-item-group-section-font, var(--font-mono, ui-monospace, monospace));
    font-size: var(--xwui-item-group-section-size, 11px);
    font-weight: var(--xwui-item-group-section-weight, 600);
    letter-spacing: var(--xwui-item-group-section-tracking, 0.12em);
    text-transform: var(--xwui-item-group-section-transform, uppercase);
    color: var(--xwui-item-group-section-color, var(--text-tertiary));
    box-sizing: border-box;
}

.xwui-item-group-section-toggle {
    cursor: pointer;
    appearance: none;
    border-radius: 6px;
}

.xwui-item-group-section-toggle:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: -2px;
}

.xwui-item-group-section-label {
    flex: 1 1 auto;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.xwui-item-group-section-count {
    flex: 0 0 auto;
    color: var(--xwui-item-group-section-count-color, var(--accent-primary));
}

.xwui-item-group-section-chevron {
    display: inline-flex;
    flex: 0 0 auto;
    width: var(--xwui-item-group-section-chevron-size, 14px);
    height: var(--xwui-item-group-section-chevron-size, 14px);
    transition: transform 0.2s ease;
}

.xwui-item-group-section-chevron svg {
    width: 100%;
    height: 100%;
}

.xwui-item-group-section-collapsed .xwui-item-group-section-chevron {
    transform: rotate(-90deg);
}

.xwui-item-group-rtl .xwui-item-group-section-collapsed .xwui-item-group-section-chevron {
    transform: rotate(90deg);
}

@media (prefers-reduced-motion: reduce) {
    .xwui-item-group-section-chevron {
        transition: none;
    }
}