/* Main layout */
.app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* Header */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  z-index: var(--z-sticky);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo {
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
}

/* Main content */
.main-content {
  flex: 1;
  display: flex;
  gap: 1rem;
  padding: 1rem;
  overflow: hidden;
}

/* Panels */
.panel {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.panel-left {
  width: 50%;
}

.panel-right {
  width: 50%;
  overflow-y: auto;
}

/* Panel sections */
.panel-section {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-md);
}

.panel-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.panel-section-title {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Flex grow section */
.panel-section-grow {
  flex: 1;
  min-height: 0;
}

/* Stats grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.stat-card {
  text-align: center;
  padding: var(--spacing-md);
}

.stat-value {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--text-muted);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  text-transform: uppercase;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  padding: var(--spacing-md);
}

.modal {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  width: 100%;
  max-width: 32rem;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.modal-lg {
  max-width: 56rem;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.modal-title {
  font-size: 1.125rem;
  font-weight: 600;
}

.modal-close {
  font-size: 1.5rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  line-height: 1;
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-body {
  flex: 1;
  padding: 1.25rem;
  overflow-y: auto;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 1.25rem;
  border-top: 1px solid var(--border);
}

/* Split modal (editor) */
.modal-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.modal-split-pane {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Gallery grid */
.gallery-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.gallery-item {
  position: relative;
  cursor: pointer;
}

.gallery-thumb {
  width: 4rem;
  height: 3rem;
  object-fit: cover;
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
  opacity: 0.7;
}

.gallery-item:hover .gallery-thumb {
  opacity: 1;
}

.gallery-item.selected .gallery-thumb {
  opacity: 1;
  box-shadow: 0 0 0 2px var(--accent-blue), 0 0 0 4px var(--bg-primary);
}

.gallery-item.selected::after {
  content: '';
  position: absolute;
  top: -0.25rem;
  right: -0.25rem;
  width: 0.75rem;
  height: 0.75rem;
  background: var(--accent-blue);
  border-radius: 50%;
}

/* Image preview */
.preview-container {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  position: relative;
}

.preview-image {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: var(--radius-lg);
  cursor: zoom-in;
}

.preview-placeholder {
  text-align: center;
  color: var(--text-muted);
}

.preview-placeholder-icon {
  width: 4rem;
  height: 4rem;
  margin: 0 auto 0.75rem;
  opacity: 0.3;
}

/* Zone map */
.zone-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.zone-shelf-label {
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-lg);
  background: rgba(100, 116, 139, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.zone-products {
  flex: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.zone-product {
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 500;
  cursor: default;
  transition: transform var(--transition-fast);
}

.zone-product:hover {
  transform: scale(1.1);
}

.zone-product-stocked {
  background: var(--accent-green);
}

.zone-product-empty {
  background: var(--accent-red);
}

/* Stockout list */
.stockout-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  border-radius: var(--radius-lg);
  transition: background var(--transition-fast);
}

.stockout-item:hover {
  background: var(--bg-hover);
}

.stockout-priority {
  font-size: 1.125rem;
}

.stockout-info {
  flex: 1;
}

.stockout-name {
  font-weight: 500;
}

.stockout-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.stockout-count {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-red);
}

/* Quick actions bar */
.quick-actions {
  display: flex;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

/* Responsive */
@media (max-width: 1024px) {
  .main-content {
    flex-direction: column;
  }

  .panel-left,
  .panel-right {
    width: 100%;
  }

  .modal-split {
    grid-template-columns: 1fr;
  }
}