/**
 * SMARTSHELF Component Library
 * Modern Iranian Mobile & Web Component Styles
 * RTL-First, Accessible, 44px Touch Targets, Logical CSS
 */

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding-block: var(--space-2);
  padding-inline: var(--space-4);
  min-height: var(--min-touch-target);
  font-size: var(--font-base);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: all var(--duration-fast) var(--ease-standard);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--primary-fg);
  border-color: var(--primary);
}
.btn-primary:hover {
  background-color: var(--primary-hover);
  border-color: var(--primary-hover);
}
.btn-primary:active {
  background-color: var(--primary-active);
  transform: scale(0.98);
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border-color: var(--border-default);
}
.btn-secondary:hover {
  background-color: var(--bg-muted);
  border-color: var(--border-strong);
}

.btn-outline {
  background-color: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background-color: var(--accent-subtle);
}

.btn-ghost {
  background-color: transparent;
  color: var(--text-primary);
}
.btn-ghost:hover {
  background-color: var(--bg-muted);
}

.btn-danger {
  background-color: var(--color-danger);
  color: #FFFDF9;
}
.btn-danger:hover {
  opacity: 0.9;
}

.btn-sm {
  min-height: 36px;
  padding-inline: var(--space-3);
  font-size: var(--font-sm);
  border-radius: var(--radius-sm);
}

.btn-lg {
  min-height: 52px;
  padding-inline: var(--space-6);
  font-size: var(--font-lg);
  border-radius: var(--radius-lg);
}

.btn:disabled, .btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* ==========================================================================
   1. Bottom Tab Bar (Mobile Navigation with animated indicator)
   ========================================================================== */
.bottom-tab-bar {
  position: fixed;
  inset-inline: 0;
  inset-block-end: 0;
  height: 64px;
  background-color: var(--bg-surface);
  border-block-start: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-around;
  z-index: var(--z-sticky);
  box-shadow: var(--shadow-lg);
  padding-inline: var(--space-2);
}

.nav-tab-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  color: var(--text-muted);
  font-size: var(--font-xs);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  position: relative;
  transition: color var(--duration-fast) var(--ease-standard);
  min-height: 56px;
}

.nav-tab-item.active {
  color: var(--primary);
  font-weight: var(--font-weight-bold);
}

.nav-tab-item .tab-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--duration-fast) var(--ease-standard);
}

.nav-tab-item.active .tab-icon {
  transform: translateY(-2px);
}

.nav-tab-indicator {
  position: absolute;
  inset-block-start: 0;
  height: 3px;
  width: 32px;
  background-color: var(--primary);
  border-radius: var(--radius-full);
  transition: transform var(--duration-normal) var(--ease-standard);
}

/* ==========================================================================
   2. Sticky Bottom Action Bar (Checkout / Grand Total)
   ========================================================================== */
.sticky-action-bar {
  position: sticky;
  inset-block-end: 0;
  inset-inline: 0;
  background-color: var(--bg-surface-elevated);
  border-block-start: 1px solid var(--border-subtle);
  padding-block: var(--space-3);
  padding-inline: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  box-shadow: 0 -4px 16px rgba(50, 17, 38, 0.08);
  z-index: var(--z-sticky);
}

.sticky-action-total {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sticky-action-total .label {
  font-size: var(--font-xs);
  color: var(--text-muted);
}

.sticky-action-total .amount {
  font-size: var(--font-xl);
  font-weight: var(--font-weight-bold);
  color: var(--primary);
}

/* ==========================================================================
   3. Bottom Sheet (Pull & swipe to close)
   ========================================================================== */
.sheet-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(50, 17, 38, 0.5);
  backdrop-filter: blur(4px);
  z-index: var(--z-sheet);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease-standard);
}

.sheet-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.bottom-sheet {
  position: fixed;
  inset-inline: 0;
  inset-block-end: 0;
  max-height: 85vh;
  background-color: var(--bg-surface);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  border-block-start: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-xl);
  z-index: calc(var(--z-sheet) + 1);
  display: flex;
  flex-direction: column;
  transform: translateY(100%);
  transition: transform var(--duration-normal) var(--ease-standard);
  touch-action: none;
}

.bottom-sheet.open {
  transform: translateY(0);
}

.sheet-handle-bar {
  width: 100%;
  padding-block: var(--space-3);
  display: flex;
  justify-content: center;
  cursor: grab;
}

.sheet-handle {
  width: 40px;
  height: 5px;
  background-color: var(--border-strong);
  border-radius: var(--radius-full);
  opacity: 0.4;
}

.sheet-content {
  padding-inline: var(--space-4);
  padding-block-end: var(--space-6);
  overflow-y: auto;
}

/* ==========================================================================
   4. Product Card
   ========================================================================== */
.product-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  display: flex;
  gap: var(--space-3);
  align-items: center;
  transition: transform var(--duration-fast) var(--ease-standard),
              box-shadow var(--duration-fast) var(--ease-standard),
              border-color var(--duration-fast) var(--ease-standard);
  position: relative;
  overflow: hidden;
}

.product-card:hover {
  border-color: var(--border-default);
  box-shadow: var(--shadow-md);
}

.product-card-img {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-md);
  object-fit: cover;
  background-color: var(--bg-muted);
  flex-shrink: 0;
  border: 1px solid var(--border-subtle);
}

.product-card-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.product-card-title {
  font-size: var(--font-base);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.product-card-price {
  font-size: var(--font-sm);
  font-weight: var(--font-weight-bold);
  color: var(--primary);
}

.product-card-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* ==========================================================================
   5. Quantity Stepper (+ / -)
   ========================================================================== */
.stepper {
  display: inline-flex;
  align-items: center;
  background-color: var(--bg-canvas);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  padding: 2px;
  gap: var(--space-1);
}

.stepper-btn {
  width: 32px;
  height: 32px;
  min-width: 32px;
  min-height: 32px;
  border-radius: var(--radius-full);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  font-size: var(--font-lg);
  font-weight: var(--font-weight-bold);
  border: 1px solid var(--border-subtle);
  transition: all var(--duration-fast) var(--ease-standard);
}

.stepper-btn:hover {
  background-color: var(--primary);
  color: var(--primary-fg);
}

.stepper-value {
  min-width: 28px;
  text-align: center;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-base);
}

/* ==========================================================================
   6. Chips & Filters
   ========================================================================== */
.chips-container {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding-block: var(--space-1);
  padding-inline: var(--space-3);
  min-height: 36px;
  border-radius: var(--radius-full);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  font-size: var(--font-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-standard);
}

.chip:hover {
  border-color: var(--border-strong);
}

.chip.active {
  background-color: var(--primary);
  color: var(--primary-fg);
  border-color: var(--primary);
}

/* ==========================================================================
   7. Segmented Control
   ========================================================================== */
.segmented-control {
  display: inline-flex;
  background-color: var(--bg-muted);
  padding: 4px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  width: fit-content;
}

.segment-item {
  padding-block: var(--space-2);
  padding-inline: var(--space-4);
  font-size: var(--font-sm);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-standard);
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.segment-item.active {
  background-color: var(--bg-surface-elevated);
  color: var(--text-primary);
  font-weight: var(--font-weight-bold);
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   8. Badges & Live Pulse Dot
   ========================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding-block: 2px;
  padding-inline: var(--space-2);
  border-radius: var(--radius-full);
  font-size: var(--font-xs);
  font-weight: var(--font-weight-bold);
  line-height: 1.4;
  border: 1px solid transparent;
}

.badge-success {
  background-color: var(--color-success-bg);
  color: var(--color-success);
  border-color: var(--color-success-border);
}

.badge-warning {
  background-color: var(--color-warning-bg);
  color: var(--color-warning);
  border-color: var(--color-warning-border);
}

.badge-danger {
  background-color: var(--color-danger-bg);
  color: var(--color-danger);
  border-color: var(--color-danger-border);
}

.badge-info {
  background-color: var(--color-info-bg);
  color: var(--color-info);
  border-color: var(--color-info-border);
}

.badge-neutral {
  background-color: var(--bg-muted);
  color: var(--text-primary);
  border-color: var(--border-subtle);
}

/* Live Pulse Dot */
.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  display: inline-block;
  position: relative;
}

.pulse-dot-live {
  background-color: var(--color-success);
}

.pulse-dot-live::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: var(--radius-full);
  background-color: var(--color-success);
  opacity: 0.75;
  animation: pulsePing 1.8s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes pulsePing {
  0% { transform: scale(1); opacity: 0.75; }
  75%, 100% { transform: scale(2.4); opacity: 0; }
}

/* ==========================================================================
   9. Toast / Snackbar with Undo (بازگردانی)
   ========================================================================== */
.toast-container {
  position: fixed;
  inset-block-start: var(--space-4);
  inset-inline-end: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  z-index: var(--z-toast);
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  min-width: 300px;
  max-width: 420px;
  background-color: var(--bg-surface-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  transform: translateY(-20px);
  opacity: 0;
  transition: transform var(--duration-normal) var(--ease-standard),
              opacity var(--duration-normal) var(--ease-standard);
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast-message {
  font-size: var(--font-sm);
  font-weight: var(--font-weight-medium);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.toast-undo {
  color: var(--primary);
  font-size: var(--font-sm);
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  border: 1px solid var(--primary);
  background: transparent;
}
.toast-undo:hover {
  background-color: var(--accent-subtle);
}

/* ==========================================================================
   10. Skeleton Shimmer Loader
   ========================================================================== */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--bg-muted) 25%,
    var(--border-subtle) 50%,
    var(--bg-muted) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.8s infinite;
  border-radius: var(--radius-sm);
}

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

.skeleton-text {
  height: 16px;
  margin-block-end: var(--space-2);
  width: 80%;
}
.skeleton-title {
  height: 24px;
  width: 50%;
  margin-block-end: var(--space-3);
}
.skeleton-avatar {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
}

/* ==========================================================================
   11. Empty State
   ========================================================================== */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-8) var(--space-4);
  gap: var(--space-3);
  color: var(--text-muted);
}

.empty-state-icon {
  width: 96px;
  height: 96px;
  color: var(--border-strong);
  opacity: 0.5;
  margin-block-end: var(--space-2);
}

.empty-state-title {
  font-size: var(--font-lg);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
}

.empty-state-desc {
  font-size: var(--font-sm);
  max-width: 340px;
  line-height: var(--lh-normal);
}

/* ==========================================================================
   12. Checkout Stepper (Progress Steps)
   ========================================================================== */
.stepper-steps {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  position: relative;
  margin-block: var(--space-4);
}

.stepper-steps::before {
  content: '';
  position: absolute;
  inset-block-start: 18px;
  inset-inline: 24px;
  height: 2px;
  background-color: var(--border-subtle);
  z-index: var(--z-base);
}

.step-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  position: relative;
  z-index: calc(var(--z-base) + 1);
}

.step-circle {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background-color: var(--bg-surface);
  border: 2px solid var(--border-subtle);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-sm);
  font-weight: var(--font-weight-bold);
  transition: all var(--duration-fast) var(--ease-standard);
}

.step-node.active .step-circle {
  background-color: var(--primary);
  border-color: var(--primary);
  color: var(--primary-fg);
  box-shadow: 0 0 0 4px var(--accent-subtle);
}

.step-node.completed .step-circle {
  background-color: var(--color-success);
  border-color: var(--color-success);
  color: #FFFDF9;
}

.step-label {
  font-size: var(--font-xs);
  font-weight: var(--font-weight-medium);
  color: var(--text-muted);
}

.step-node.active .step-label {
  color: var(--primary);
  font-weight: var(--font-weight-bold);
}

/* ==========================================================================
   13. Modal Dialog
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(50, 17, 38, 0.55);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease-standard);
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-box {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 480px;
  transform: scale(0.95);
  transition: transform var(--duration-normal) var(--ease-standard);
  overflow: hidden;
}

.modal-backdrop.active .modal-box {
  transform: scale(1);
}

.modal-header {
  padding: var(--space-4);
  border-block-end: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-body {
  padding: var(--space-4);
  max-height: 70vh;
  overflow-y: auto;
}

.modal-footer {
  padding: var(--space-3) var(--space-4);
  border-block-start: 1px solid var(--border-subtle);
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
}

/* ==========================================================================
   14. Responsive Table converting to Card layout on Mobile
   ========================================================================== */
.table-container {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background-color: var(--bg-surface);
}

.responsive-table {
  width: 100%;
  border-collapse: collapse;
  text-align: start;
}

.responsive-table th {
  background-color: var(--bg-muted);
  color: var(--text-secondary);
  font-size: var(--font-sm);
  font-weight: var(--font-weight-bold);
  padding: var(--space-3) var(--space-4);
  border-block-end: 1px solid var(--border-default);
}

.responsive-table td {
  padding: var(--space-3) var(--space-4);
  border-block-end: 1px solid var(--border-subtle);
  font-size: var(--font-sm);
}

.responsive-table tbody tr:hover {
  background-color: var(--bg-surface-subtle);
}

@media (max-width: 640px) {
  .responsive-table, 
  .responsive-table thead, 
  .responsive-table tbody, 
  .responsive-table th, 
  .responsive-table td, 
  .responsive-table tr {
    display: block;
  }

  .responsive-table thead tr {
    position: absolute;
    top: -9999px;
    left: -9999px;
  }

  .responsive-table tr {
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    margin-block-end: var(--space-3);
    padding: var(--space-3);
    background-color: var(--bg-surface-elevated);
  }

  .responsive-table td {
    border: none;
    position: relative;
    padding-inline-start: 45%;
    padding-block: var(--space-1);
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .responsive-table td::before {
    content: attr(data-label);
    font-weight: var(--font-weight-bold);
    color: var(--text-secondary);
  }
}

/* ==========================================================================
   15. KPI Metric Card
   ========================================================================== */
.kpi-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  box-shadow: var(--shadow-sm);
  transition: transform var(--duration-fast) var(--ease-standard);
}

.kpi-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-default);
}

.kpi-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-muted);
  font-size: var(--font-sm);
}

.kpi-value {
  font-size: var(--font-2xl);
  font-weight: var(--font-weight-black);
  color: var(--text-primary);
  line-height: var(--lh-tight);
}

.kpi-trend {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--font-xs);
  font-weight: var(--font-weight-semibold);
}

/* ==========================================================================
   16. Confidence Meter Progress Bar
   ========================================================================== */
.confidence-meter {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  width: 100%;
}

.confidence-header {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-xs);
  color: var(--text-muted);
}

.confidence-track {
  width: 100%;
  height: 8px;
  background-color: var(--bg-muted);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.confidence-bar {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width var(--duration-normal) var(--ease-standard);
}

.confidence-high {
  background-color: var(--color-success);
}
.confidence-medium {
  background-color: var(--color-warning);
}
.confidence-low {
  background-color: var(--color-danger);
}

/* ==========================================================================
   17. Perforated Ticket Receipt (لبه‌ی دندانه‌دار بلیت)
   ========================================================================== */
.ticket-receipt {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-lg);
  position: relative;
  max-width: 380px;
  margin-inline: auto;
  overflow: hidden;
}

/* Serrated / Perforated zigzag teeth top & bottom */
.ticket-receipt::before,
.ticket-receipt::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  height: 10px;
  background-size: 16px 10px;
  background-repeat: repeat-x;
  z-index: var(--z-base);
}

.ticket-receipt::before {
  inset-block-start: -5px;
  background-image: radial-gradient(circle at 8px 0px, transparent 6px, var(--bg-surface-elevated) 7px);
}

.ticket-receipt::after {
  inset-block-end: -5px;
  background-image: radial-gradient(circle at 8px 10px, transparent 6px, var(--bg-surface-elevated) 7px);
}

.ticket-header {
  text-align: center;
  padding-block-end: var(--space-4);
  border-block-end: 1px dashed var(--border-strong);
  margin-block-end: var(--space-4);
}

.ticket-line-item {
  display: flex;
  justify-content: space-between;
  margin-block-end: var(--space-2);
  font-size: var(--font-sm);
}

.ticket-divider {
  border: none;
  border-block-start: 1px dashed var(--border-strong);
  margin-block: var(--space-4);
}

.ticket-total {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-lg);
  font-weight: var(--font-weight-black);
  color: var(--primary);
}

/* ==========================================================================
   18. Form Fields with Persian Validation Error States
   ========================================================================== */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-block-end: var(--space-4);
}

.form-label {
  font-size: var(--font-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}

.form-input {
  min-height: var(--min-touch-target);
  padding-inline: var(--space-3);
  padding-block: var(--space-2);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-default);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  font-size: 1rem;
  transition: border-color var(--duration-fast) var(--ease-standard),
              box-shadow var(--duration-fast) var(--ease-standard);
}

.form-input:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-subtle);
}

.form-input[aria-invalid="true"],
.form-input.is-invalid {
  border-color: var(--color-danger);
  box-shadow: 0 0 0 3px var(--color-danger-bg);
}

.form-error {
  font-size: var(--font-xs);
  color: var(--color-danger);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.form-hint {
  font-size: var(--font-xs);
  color: var(--text-muted);
}

/* ==========================================================================
   19. Multi-step Form Wizard & Product Management (Phase 6)
   ========================================================================== */
.form-steps {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  border-bottom: 1px solid var(--border-default);
  padding-bottom: var(--space-3);
  overflow-x: auto;
}

.step-indicator-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--font-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--text-muted);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-default);
  cursor: pointer;
  transition: all var(--duration-fast);
  white-space: nowrap;
}

.step-indicator-item.active {
  color: var(--primary-fg);
  background-color: var(--primary);
  border-color: var(--primary);
}

.step-indicator-item.completed {
  color: var(--color-success);
  border-color: var(--color-success);
  background-color: var(--color-success-bg);
}

.step-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  background: rgba(0, 0, 0, 0.15);
}

.form-step-panel {
  display: none;
}

.form-step-panel.active {
  display: block;
}

/* Product Cards Grid */
.products-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-3);
}

.product-catalog-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: transform var(--duration-fast), box-shadow var(--duration-fast);
}

.product-catalog-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

.product-card-media {
  position: relative;
  width: 100%;
  height: 180px;
  background-color: var(--bg-muted);
  overflow: hidden;
}

.product-card-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: var(--space-2);
}

.product-card-badge {
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
}

.product-card-images-count {
  position: absolute;
  bottom: var(--space-2);
  left: var(--space-2);
  background: rgba(0, 0, 0, 0.65);
  color: #FFF;
  font-size: var(--font-xs);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.product-card-body {
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  flex: 1;
}

.product-card-title {
  font-size: var(--font-base);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin: 0;
}

.product-card-meta {
  font-size: var(--font-xs);
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.product-card-price {
  font-size: var(--font-md);
  font-weight: var(--font-weight-black);
  color: var(--primary);
  margin-top: auto;
}

.product-card-footer {
  padding: var(--space-3);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-2);
}

/* Product Multi-Images Gallery in Form */
.product-images-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.image-card-preview {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-md);
  border: 2px solid var(--border-default);
  overflow: hidden;
  background-color: var(--bg-muted);
}

.image-card-preview.is-primary {
  border-color: var(--color-warning);
  box-shadow: 0 0 0 2px var(--color-warning-bg);
}

.image-card-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-card-actions {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  justify-content: space-around;
  padding: 4px;
}

.image-card-actions button {
  background: transparent;
  border: none;
  color: #FFF;
  cursor: pointer;
  font-size: 0.85rem;
}

.image-card-badge-primary {
  position: absolute;
  top: 4px;
  right: 4px;
  background: var(--color-warning);
  color: #000;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
}

/* Angle guidance box */
.angle-guide-card {
  background: var(--accent-subtle);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  margin-bottom: var(--space-3);
  font-size: var(--font-xs);
  line-height: 1.5;
}

.angle-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: var(--space-1);
}

.angle-chip {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* In-form Camera Box */
.camera-capture-box {
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  max-width: 480px;
  margin: var(--space-2) auto;
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
}

.camera-capture-box video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.barcode-result-card {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-default);
  background: var(--bg-surface);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
}