/*
 * sidebar-accordion.css — ANZ v3 Sidebar Accordion Component
 *
 * Namespace: .anz-v3-sidebar-accordion
 * Covers: category nav (OQ10 resolution — collapsible accordion desktop sidebar)
 * All selectors scoped: body.anz-v3 .anz-v3-sidebar-accordion*
 * No hex values — var(--...) only.
 *
 * Phase 4 pages: shop, collections (desktop)
 * OQ10 resolution: "Collapse to mobile-drawer + accordion on desktop."
 *   Desktop: collapsible accordion-style sidebar, min-height enforced.
 *   Mobile: replaced by .anz-v3-mobile-drawer (see mobile-drawer.css).
 * Provenance: plan §3 OQ10 resolution, IA spec §6.2
 */


/* ===================================================================
 * SIDEBAR WRAPPER
 * =================================================================== */

body.anz-v3 .anz-v3-sidebar-accordion {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  /* min-height removed 2026-04-20 (polish batch B3) — was 400px, causing a
   * tall empty white column on category pages with only one expanded
   * section. Natural content height reads cleaner; edge case of a
   * truly empty sidebar is still guarded by the :has(:only-child) rule below. */
  overflow: hidden;
  width: 100%;
}

body.anz-v3 .anz-v3-sidebar-accordion__header {
  background-color: var(--surface-inverse);
  color: var(--text-on-inverse);
  font-size: var(--type-body-m-size);
  font-weight: var(--font-weight-medium);
  padding: var(--space-4) var(--space-4);
}


/* ===================================================================
 * ACCORDION SECTION
 * =================================================================== */

body.anz-v3 .anz-v3-sidebar-accordion__section {
  border-bottom: 1px solid var(--border);
}

body.anz-v3 .anz-v3-sidebar-accordion__section:last-child {
  border-bottom: none;
}

body.anz-v3 .anz-v3-sidebar-accordion__trigger {
  align-items: center;
  background: transparent;
  border: none;
  color: var(--text);
  cursor: pointer;
  display: flex;
  font-size: var(--type-body-m-size);
  font-weight: var(--font-weight-medium);
  gap: var(--space-3);
  justify-content: space-between;
  padding: var(--space-4);
  text-align: left;
  transition: background-color var(--motion-fast) var(--motion-exit);
  width: 100%;
}

body.anz-v3 .anz-v3-sidebar-accordion__trigger:focus,
body.anz-v3 .anz-v3-sidebar-accordion__trigger:hover {
  background-color: var(--bg-wash);
}

body.anz-v3 .anz-v3-sidebar-accordion__trigger[aria-expanded="true"] {
  background-color: var(--bg-soft);
  color: var(--anz-pacific-blue);
}

body.anz-v3 .anz-v3-sidebar-accordion__icon {
  color: var(--text-muted);
  flex-shrink: 0;
  font-size: var(--type-body-s-size);
  transition: transform var(--motion-fast) var(--motion-exit);
}

body.anz-v3 .anz-v3-sidebar-accordion__trigger[aria-expanded="true"] .anz-v3-sidebar-accordion__icon {
  transform: rotate(180deg);
}


/* ===================================================================
 * ACCORDION PANEL
 * =================================================================== */

body.anz-v3 .anz-v3-sidebar-accordion__panel {
  display: none;
  padding: 0;
}

body.anz-v3 .anz-v3-sidebar-accordion__panel.is-open {
  display: block;
}

body.anz-v3 .anz-v3-sidebar-accordion__items {
  list-style: none;
  margin: 0;
  padding: var(--space-2) 0;
}

body.anz-v3 .anz-v3-sidebar-accordion__item {
  display: block;
}

body.anz-v3 .anz-v3-sidebar-accordion__link {
  border-left: 3px solid transparent;
  color: var(--text-secondary);
  display: block;
  font-size: var(--type-body-m-size);
  padding: var(--space-2) var(--space-4) var(--space-2) calc(var(--space-4) + 3px);
  text-decoration: none;
  transition:
    background-color var(--motion-fast) var(--motion-exit),
    border-color var(--motion-fast) var(--motion-exit),
    color var(--motion-fast) var(--motion-exit);
}

body.anz-v3 .anz-v3-sidebar-accordion__link:focus,
body.anz-v3 .anz-v3-sidebar-accordion__link:hover {
  background-color: var(--bg-wash);
  color: var(--anz-pacific-blue);
  text-decoration: none;
}

body.anz-v3 .anz-v3-sidebar-accordion__link--active {
  border-left-color: var(--anz-pacific-blue);
  color: var(--anz-pacific-blue);
  font-weight: var(--font-weight-medium);
}

/* Edge case: single-category sidebar — enforce min-height so it doesn't collapse */
body.anz-v3 .anz-v3-sidebar-accordion:has(.anz-v3-sidebar-accordion__section:only-child) {
  min-height: 200px;
}

/* Category names come from catalogue data in Title Case (e.g. "Staff Rewards") —
   render as sentence case visually without touching the underlying data. */
body.anz-v3 .anz-v3-sidebar-accordion__trigger > span,
body.anz-v3 .anz-v3-sidebar-accordion__link {
  text-transform: lowercase;
}
body.anz-v3 .anz-v3-sidebar-accordion__trigger > span {
  display: inline-block;
}
body.anz-v3 .anz-v3-sidebar-accordion__trigger > span::first-letter,
body.anz-v3 .anz-v3-sidebar-accordion__link::first-letter {
  text-transform: uppercase;
}


/* ===================================================================
 * RESPONSIVE — hidden on mobile (replaced by mobile-drawer)
 * =================================================================== */

@media (max-width: 768px) {
  body.anz-v3 .anz-v3-sidebar-accordion {
    display: none;
  }
}


/* ===================================================================
 * REDUCED MOTION
 * =================================================================== */

@media (prefers-reduced-motion: reduce) {
  body.anz-v3 .anz-v3-sidebar-accordion__trigger,
  body.anz-v3 .anz-v3-sidebar-accordion__icon,
  body.anz-v3 .anz-v3-sidebar-accordion__link {
    transition: none;
  }

  body.anz-v3 .anz-v3-sidebar-accordion__trigger[aria-expanded="true"] .anz-v3-sidebar-accordion__icon {
    transform: none;
  }
}