/* ==========================================================================
   STATE COMPONENTS
   ========================================================================== */

/* Loading States */
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-12) var(--space-8);
  text-align: center;
  color: var(--text-secondary);
}

.loading-spinner {
  width: 32px;
  height: 32px;
  border: 2px solid var(--gray-200);
  border-top: 2px solid var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: var(--space-4);
}

.loading-spinner.inline {
  display: inline-block;
  vertical-align: middle;
  width: 1rem;
  height: 1rem;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  animation: spin 0.6s linear infinite;
  margin: 0;
  flex-shrink: 0;
  align-self: center;
}

.line-items-loading {
  opacity: 0.6;
  pointer-events: none;
}

.financial-summary-loading .financial-summary-value {
  background: var(--gray-200);
  color: transparent;
  border-radius: var(--radius-sm);
  animation: pulse 1.5s ease-in-out infinite;
}

/* Empty States */
.empty-state,
.empty-content {
  text-align: center;
  padding: var(--space-12) var(--space-8);
  background: var(--surface);
  border-radius: var(--radius);
  border: 2px dashed var(--border);
  color: var(--text-secondary);
}

.empty-state-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-8);
  color: var(--text-muted);
  opacity: 0.7;
}

.empty-state-icon svg {
  width: 64px !important;
  height: 64px !important;
}

.empty-state-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--text);
}

.empty-state-description {
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
  font-size: 0.9375rem;
  line-height: 1.5;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* Spacing between adjacent CTAs (multi-button empty_state via 'extra_buttons') */
.empty-state .btn + .btn {
  margin-left: var(--space-2);
}

/* Compact section-level empty placeholder (section_empty() helper) — for
   sub-sections in detail pages where the full .empty-state hero treatment
   would be visually too large. Single short line of muted text. */
.section-empty {
  padding: var(--space-4) var(--space-6);
  margin-bottom: var(--space-6);
  text-align: center;
  background: var(--surface);
  border-radius: var(--radius);
}

.section-empty p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.empty-content p {
  margin: var(--space-2) 0;
  font-size: 0.875rem;
}

/* Table States — in-tbody flat rows for empty / loading / error cases.
   Use when <thead> must stay visible. Helpers: table_empty_row(),
   table_loading_row(), table_error_row() / window.tableEmptyRow(),
   window.tableLoadingRow(), window.tableErrorRow(). */
.table-empty,
.table-loading,
.table-error {
  text-align: center;
  padding: var(--space-8) var(--space-4);
  color: var(--text-secondary);
}

.table-loading {
  color: var(--text-muted);
}

.table-loading .loading-spinner {
  margin: 0 auto var(--space-3);
}

.table-error {
  color: var(--error, #dc2626);
}

.table-error-icon {
  color: var(--error, #dc2626);
  margin-bottom: var(--space-3);
  opacity: 0.9;
  line-height: 0;
}

.table-error-icon svg {
  width: 32px;
  height: 32px;
}

.table-error-title {
  font-weight: 600;
  color: var(--error, #dc2626);
  font-size: 0.9375rem;
  margin: 0;
}

.table-error-description {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: var(--space-1) auto 0;
  max-width: 420px;
  line-height: 1.5;
}

.table-error-actions {
  margin-top: var(--space-4);
}

.table-empty-icon {
  color: var(--text-muted);
  margin-bottom: var(--space-3);
  opacity: 0.7;
  line-height: 0;
}

.table-empty-icon svg {
  width: 32px;
  height: 32px;
}

.table-empty-title {
  font-weight: 600;
  color: var(--text);
  font-size: 0.9375rem;
  margin: 0;
}

.table-empty-description {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: var(--space-1) auto 0;
  max-width: 420px;
  line-height: 1.5;
}

.table-empty-actions {
  margin-top: var(--space-4);
}

/* Info Box */
.info-box {
  background: var(--gray-50);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-4);
}

.info-box h4 {
  margin: 0 0 var(--space-3) 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
}

/* Image Gallery States */
.image-preview-container {
  width: 100%;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed #e5e7eb;
  border-radius: 0.5rem;
  padding: 1rem;
  background-color: #f9fafb;
}

.image-placeholder {
  text-align: center;
  color: #9ca3af;
}

.image-preview-container img {
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

/* Mobile Responsive */
@media (max-width: 480px) {
  .loading-state {
    padding: var(--space-8) var(--space-4);
  }
  
  .empty-state {
    padding: var(--space-8) var(--space-6);
  }
}