/* =============================================================================
 * XEGORA Configurator Xerox — Wizard Step 1 Styles
 *
 * Layout (CSS Grid: sidebar + main), sidebar filters, product grid + cards,
 * loading skeleton, empty state, filter-hidden utility, responsive
 * breakpoints (1024 / 768 / 480).
 *
 * Depends on wizard-base.css for the variables, reset, typography, progress
 * bar, mobile toggle, and button base. Loaded after wizard-base.css and
 * wizard-themes.css by XCX_Frontend.
 *
 * @package XegoraConfiguratorXerox
 * @since   0.2.0
 * ============================================================================= */

/* === Layout (CSS Grid: sidebar + main) === */
.xcx-step-1 {
  display: grid;
  grid-template-columns: var(--xcx-sidebar-width) 1fr;
  gap: var(--xcx-space-lg);
  align-items: start;
}

/* === Sidebar === */
.xcx-sidebar {
  background: var(--xcx-bg);
  padding: var(--xcx-space-md);
  border: 1px solid var(--xcx-border);
  border-radius: var(--xcx-radius-md);
  position: sticky;
  top: var(--xcx-space-md);
  max-height: calc(100vh - var(--xcx-space-xl));
  overflow-y: auto;
}

.xcx-filter-group {
  margin-bottom: var(--xcx-space-lg);
}

.xcx-filter-group:last-child {
  margin-bottom: 0;
}

.xcx-filter-label {
  display: block;
  margin: 0 0 var(--xcx-space-sm) 0;
  font-size: var(--xcx-font-size-sm);
  font-weight: 600;
  color: var(--xcx-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.xcx-search {
  width: 100%;
  padding: var(--xcx-space-sm) var(--xcx-space-md);
  font-family: inherit;
  font-size: var(--xcx-font-size-base);
  color: var(--xcx-text);
  background: var(--xcx-bg);
  border: 1px solid var(--xcx-border);
  border-radius: var(--xcx-radius-md);
  transition: border-color var(--xcx-transition), box-shadow var(--xcx-transition);
}

.xcx-search:focus {
  outline: none;
  border-color: var(--xcx-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--xcx-primary) 20%, transparent);
}

.xcx-checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--xcx-space-sm);
  padding: var(--xcx-space-xs) var(--xcx-space-sm);
  margin-bottom: 2px;
  border-radius: var(--xcx-radius-sm);
  cursor: pointer;
  transition: background var(--xcx-transition);
  font-size: var(--xcx-font-size-sm);
}

.xcx-checkbox-label:hover {
  background: var(--xcx-bg-soft);
}

.xcx-checkbox-label input[type="checkbox"] {
  flex-shrink: 0;
  cursor: pointer;
}

.xcx-categories {
  list-style: none;
  margin: 0;
  padding: 0;
}

.xcx-categories li {
  margin-bottom: 2px;
}

.xcx-category-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--xcx-space-sm) var(--xcx-space-md);
  background: transparent;
  border: 0;
  border-radius: var(--xcx-radius-sm);
  text-align: left;
  font-family: inherit;
  font-size: var(--xcx-font-size-sm);
  color: var(--xcx-text);
  cursor: pointer;
  transition: background var(--xcx-transition), color var(--xcx-transition);
}

.xcx-category-btn:hover {
  background: var(--xcx-bg-soft);
}

.xcx-category-btn.xcx-active {
  background: var(--xcx-primary);
  color: var(--xcx-on-primary);
}

.xcx-cat-name {
  flex: 1;
}

.xcx-cat-count {
  margin-left: var(--xcx-space-sm);
  padding: 2px var(--xcx-space-sm);
  background: var(--xcx-bg-soft);
  color: var(--xcx-text-muted);
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--xcx-radius-sm);
  flex-shrink: 0;
}

.xcx-category-btn.xcx-active .xcx-cat-count {
  background: color-mix(in srgb, var(--xcx-on-primary) 25%, transparent);
  color: var(--xcx-on-primary);
}

/* === Main content area === */
.xcx-main {
  min-width: 0; /* prevents grid overflow with long titles */
}

.xcx-main-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--xcx-space-md);
  margin-bottom: var(--xcx-space-md);
}

.xcx-main-title {
  margin: 0;
}

.xcx-result-count {
  color: var(--xcx-text-muted);
  font-size: var(--xcx-font-size-sm);
}

/* === Product grid === */
.xcx-product-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--xcx-space-md);
}

.xcx-card {
  position: relative;
  background: var(--xcx-bg);
  border: 1px solid var(--xcx-border);
  border-radius: var(--xcx-radius-md);
  overflow: hidden;
  transition: box-shadow var(--xcx-transition), transform var(--xcx-transition), border-color var(--xcx-transition);
}

.xcx-card:hover {
  box-shadow: var(--xcx-shadow-lg);
  transform: translateY(-2px);
  border-color: var(--xcx-primary);
}

.xcx-card article {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.xcx-card-image-wrap {
  position: relative;
  aspect-ratio: 4 / 3;
  background: var(--xcx-bg-soft);
  overflow: hidden;
}

.xcx-card-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: var(--xcx-space-md);
  color: var(--xcx-text); /* drives currentColor in placeholder.svg */
}

/* Brand badge positioned absolute over the image */
.xcx-card .xcx-brand-badge {
  position: absolute;
  top: var(--xcx-space-sm);
  right: var(--xcx-space-sm);
  z-index: 1;
  background: var(--xcx-bg);
}

.xcx-card-title {
  margin: var(--xcx-space-md) var(--xcx-space-md) 0 var(--xcx-space-md);
  font-size: var(--xcx-font-size-base);
  font-weight: 600;
  color: var(--xcx-text);
}

.xcx-card-actions {
  margin-top: auto;
  padding: var(--xcx-space-md);
  display: flex;
  gap: var(--xcx-space-sm);
  flex-wrap: wrap;
}

.xcx-card-actions .xcx-btn {
  flex: 1;
  min-width: 0;
}

/* === Loading skeleton (CSS shimmer animation) === */
.xcx-loading-skeleton {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--xcx-space-md);
  margin-bottom: var(--xcx-space-md);
}

.xcx-skeleton-card {
  aspect-ratio: 4 / 3;
  border-radius: var(--xcx-radius-md);
  background: linear-gradient(
    90deg,
    var(--xcx-bg-soft) 0%,
    color-mix(in srgb, var(--xcx-bg-soft) 60%, var(--xcx-border)) 50%,
    var(--xcx-bg-soft) 100%
  );
  background-size: 200% 100%;
  animation: xcx-shimmer 1.5s ease-in-out infinite;
}

@keyframes xcx-shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* === Empty state === */
.xcx-empty-state {
  max-width: 420px;
  margin: 0 auto;
  padding: var(--xcx-space-md) var(--xcx-space-lg);
  text-align: center;
  color: var(--xcx-text-muted);
  border: 1px dashed var(--xcx-border);
  border-radius: var(--xcx-radius-md);
}

.xcx-empty-state p {
  margin: 0 0 var(--xcx-space-sm) 0;
  font-size: var(--xcx-font-size-base);
}

.xcx-empty-state .xcx-btn,
.xcx-empty-state .xcx-btn-secondary {
  max-width: 200px;
  padding: var(--xcx-space-xs) var(--xcx-space-md);
  font-size: var(--xcx-font-size-sm);
  background: var(--xcx-primary);
  border-color: var(--xcx-primary);
  color: var(--xcx-on-primary);
}

.xcx-empty-state .xcx-btn:hover,
.xcx-empty-state .xcx-btn:focus,
.xcx-empty-state .xcx-btn-secondary:hover,
.xcx-empty-state .xcx-btn-secondary:focus {
  background: var(--xcx-secondary);
  border-color: var(--xcx-secondary);
  color: var(--xcx-on-primary);
}

/* === Filter-hidden utility (cards filtered out by client-side rules) === */
/* Distinct from [hidden]: we want cards filtered to remain in DOM order
   for screen readers re-querying, but visually removed from the grid. */
.xcx-card.xcx-hidden {
  display: none;
}

/* === Responsive: 1024px (tablet landscape) === */
@media (max-width: 1024px) {
  .xcx-product-grid,
  .xcx-loading-skeleton {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  }
}

/* === Responsive: 768px (tablet portrait / large mobile) === */
@media (max-width: 768px) {
  .xcx-step-1 {
    grid-template-columns: 1fr;
  }

  .xcx-sidebar {
    position: static;
    max-height: none;
  }

  /* Hide sidebar unless explicitly opened by JS toggle */
  .xcx-sidebar:not(.xcx-mobile-open) {
    display: none;
  }

  .xcx-mobile-toggle {
    display: flex;
  }

  .xcx-product-grid,
  .xcx-loading-skeleton {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* === Responsive: 480px (small mobile) === */
@media (max-width: 480px) {
  .xcx-product-grid,
  .xcx-loading-skeleton {
    grid-template-columns: 1fr;
  }

  .xcx-card-actions {
    flex-direction: column;
  }

  .xcx-card-actions .xcx-btn {
    width: 100%;
  }

  .xcx-mobile-toggle {
    padding: var(--xcx-space-sm);
  }
}