/* ============================================
   Parts Calculator Styles - Light/Dark Theme
   Based on v0.dev design
   ============================================ */

/* CSS Variables - Light Theme (default) */
:root {
  /* Light theme colors - converted from oklch */
  --calc-bg-primary: #f8f9fa;
  --calc-bg-secondary: #ffffff;
  --calc-bg-card: #f9fafb;
  --calc-bg-input: #f3f4f6;

  /* Border colors */
  --calc-border: #d1d5db;
  --calc-border-light: #9ca3af;
  --calc-border-focus: #10b981;

  /* Text colors */
  --calc-text-primary: #111827;
  --calc-text-secondary: #4b5563;
  --calc-text-muted: #6b7280;

  /* Accent colors */
  --calc-accent-teal: #10b981;
  --calc-accent-teal-hover: #059669;
  --calc-accent-cyan: #06b6d4;
  --calc-accent-green: #22c55e;

  /* RGB variants for RGBA fallbacks (Safari 15, Chrome <111, Firefox <113) */
  --calc-accent-teal-rgb: 16, 185, 129;
  --calc-accent-cyan-rgb: 6, 182, 212;
  --calc-error-rgb: 239, 68, 68;

  /* Status colors */
  --calc-success: #10b981;
  --calc-warning: #f59e0b;
  --calc-error: #ef4444;

  /* Spacing */
  --calc-spacing-xs: 4px;
  --calc-spacing-sm: 8px;
  --calc-spacing-md: 12px;
  --calc-spacing-lg: 16px;
  --calc-spacing-xl: 24px;

  /* Border radius */
  --calc-radius-sm: 4px;
  --calc-radius-md: 8px;
  --calc-radius-lg: 12px;
  --calc-radius-full: 9999px;
}

/* Text Selection */
.parts-calculator ::selection {
  background: rgba(16, 185, 129, 0.3); /* Fallback */
  background: color-mix(in srgb, var(--calc-accent-teal) 30%, transparent);
  color: var(--calc-text-primary);
}

.parts-calculator ::-moz-selection {
  background: rgba(16, 185, 129, 0.3); /* Fallback */
  background: color-mix(in srgb, var(--calc-accent-teal) 30%, transparent);
  color: var(--calc-text-primary);
}

/* Dark Theme Override */
.dark .parts-calculator,
.parts-calculator.parts-calculator--dark {
  --calc-bg-primary: #0a0f14;
  --calc-bg-secondary: #111827;
  --calc-bg-card: #1a2332;
  --calc-bg-input: #0d1117;

  --calc-border: #1f2937;
  --calc-border-light: #374151;

  --calc-text-primary: #f9fafb;
  --calc-text-secondary: #9ca3af;
  --calc-text-muted: #6b7280;
}

/* ============================================
   Main Calculator Container
   ============================================ */
.parts-calculator {
  background: var(--calc-bg-secondary);
  border: 2px solid var(--calc-border);
  border-radius: var(--calc-radius-lg);
  padding: var(--calc-spacing-lg);
  width: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--calc-text-primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

/* Header */
.parts-calculator__header {
  margin-bottom: var(--calc-spacing-lg);
}

.parts-calculator__title {
  font-size: 16px;
  font-weight: 600;
  color: var(--calc-text-primary);
  margin: 0 0 4px 0;
}

.parts-calculator__subtitle {
  font-size: 12px;
  color: var(--calc-text-secondary);
  margin: 0;
}

/* ============================================
   Category Section
   ============================================ */
.calc-category {
  margin-bottom: var(--calc-spacing-lg);
}

.calc-category__header {
  display: flex;
  align-items: center;
  gap: var(--calc-spacing-sm);
  margin-bottom: var(--calc-spacing-md);
}

.calc-category__title {
  font-size: 11px;
  font-weight: 600;
  color: var(--calc-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.calc-category__badge {
  background: rgba(16, 185, 129, 0.1); /* Fallback */
  background: color-mix(in srgb, var(--calc-accent-teal) 10%, var(--calc-bg-input));
  border: 1px solid var(--calc-border);
  color: var(--calc-text-secondary);
  font-size: 10px;
  padding: 2px 6px;
  border-radius: var(--calc-radius-full);
}

/* ============================================
   Part Item Row
   ============================================ */
.calc-part-item {
  background: var(--calc-bg-card);
  border: 1px solid var(--calc-border);
  border-radius: var(--calc-radius-md);
  padding: var(--calc-spacing-md);
  margin-bottom: var(--calc-spacing-sm);
}

.calc-part-item__row {
  display: flex;
  align-items: center;
  gap: var(--calc-spacing-sm);
  margin-bottom: var(--calc-spacing-sm);
}

.calc-part-item__name {
  flex: 1;
  font-size: 14px;
  color: var(--calc-text-primary);
}

.calc-part-item__brand {
  font-size: 12px;
  color: var(--calc-text-secondary);
}

/* ============================================
   Input Fields
   ============================================ */
.calc-input {
  background: var(--calc-bg-input);
  border: 1px solid var(--calc-border);
  border-radius: var(--calc-radius-sm);
  padding: var(--calc-spacing-sm) var(--calc-spacing-md);
  color: var(--calc-text-primary);
  font-size: 14px;
  width: 100%;
  transition: border-color 0.2s ease;
}

.calc-input:focus {
  outline: none;
  border-color: var(--calc-border-focus);
  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.1); /* Fallback */
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--calc-accent-teal) 10%, transparent);
}

.calc-input::placeholder {
  color: var(--calc-text-muted);
}

.calc-input:hover:not(:focus):not(:disabled) {
  border-color: var(--calc-border-light);
}

.calc-input:disabled {
  background: var(--calc-bg-card);
  color: var(--calc-text-muted);
  cursor: not-allowed;
  opacity: 0.6;
}

.calc-input--small {
  width: 70px;
  text-align: center;
}

/* Error state */
.calc-input--error {
  border-color: var(--calc-error) !important;
  box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.15); /* Fallback */
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--calc-error) 15%, transparent);
}

/* ============================================
   Markup Badge
   ============================================ */
.calc-markup-badge {
  display: inline-flex;
  align-items: center;
  background: rgba(16, 185, 129, 0.15); /* Fallback */
  background: color-mix(in srgb, var(--calc-accent-teal) 15%, transparent);
  color: var(--calc-accent-teal);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: var(--calc-radius-sm);
  cursor: pointer;
  transition: background 0.2s ease;
}

.calc-markup-badge:hover {
  background: rgba(16, 185, 129, 0.25); /* Fallback */
  background: color-mix(in srgb, var(--calc-accent-teal) 25%, transparent);
}

/* ============================================
   Price Display
   ============================================ */
.calc-price {
  font-size: 14px;
  font-weight: 600;
  color: var(--calc-accent-teal);
  background: rgba(16, 185, 129, 0.1); /* Fallback */
  background: color-mix(in srgb, var(--calc-accent-teal) 10%, transparent);
  padding: 6px 12px;
  border-radius: var(--calc-radius-sm);
}

/* ============================================
   Quantity Selector
   ============================================ */
.calc-quantity {
  display: flex;
  align-items: center;
  gap: var(--calc-spacing-xs);
}

.calc-quantity__btn {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--calc-bg-input);
  border: 1px solid var(--calc-border);
  border-radius: var(--calc-radius-sm);
  color: var(--calc-text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.calc-quantity__btn:hover {
  background: var(--calc-bg-card);
  border-color: var(--calc-border-light);
  color: var(--calc-text-primary);
}

.calc-quantity__value {
  width: 40px;
  text-align: center;
  font-size: 14px;
  color: var(--calc-text-primary);
}

.calc-quantity__label {
  font-size: 12px;
  color: var(--calc-text-secondary);
  margin-left: var(--calc-spacing-xs);
}

/* ============================================
   Delete Button
   ============================================ */
.calc-delete-btn {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--calc-error);
  cursor: pointer;
  border-radius: var(--calc-radius-sm);
  transition: background 0.2s ease;
}

.calc-delete-btn:hover {
  background: rgba(239, 68, 68, 0.1); /* Fallback */
  background: color-mix(in srgb, var(--calc-error) 10%, transparent);
}

/* ============================================
   Totals Section
   ============================================ */
.calc-totals {
  display: flex;
  gap: var(--calc-spacing-sm);
  margin: var(--calc-spacing-lg) 0;
  width: 100%;
}

.calc-total-card {
  flex: 1 1 0;           /* Equal width: grow, shrink, zero basis */
  min-width: 0;          /* Allow shrinking below content */
  background: var(--calc-bg-card);
  border: 2px solid var(--calc-border);
  border-radius: var(--calc-radius-md);
  padding: var(--calc-spacing-md);
  text-align: center;
}

.calc-total-card__label {
  font-size: 10px;
  font-weight: 600;
  color: var(--calc-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.calc-total-card__value {
  font-size: 16px;
  font-weight: 700;
  color: var(--calc-text-primary);
}

/* Profit card - highlighted */
.calc-total-card--profit {
  background: rgba(16, 185, 129, 0.1); /* Fallback */
  background: color-mix(in srgb, var(--calc-accent-teal) 10%, transparent);
  border-color: rgba(16, 185, 129, 0.3); /* Fallback */
  border-color: color-mix(in srgb, var(--calc-accent-teal) 30%, transparent);
}

.calc-total-card--profit .calc-total-card__value {
  color: var(--calc-accent-teal);
}

/* ============================================
   Customer Preview Panel
   ============================================ */
.calc-preview {
  width: 100%;
  border: 2px solid var(--calc-border);
  border-radius: var(--calc-radius-md);
  margin-bottom: var(--calc-spacing-lg);
  overflow: hidden;
}

.calc-preview__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--calc-spacing-md);
  background: var(--calc-bg-card);
  border: none;
  cursor: pointer;
  transition: background 0.2s ease;
}

.calc-preview__header:hover {
  background: var(--calc-bg-input);
}

.calc-preview__title {
  display: flex;
  align-items: center;
  gap: var(--calc-spacing-sm);
  font-size: 13px;
  font-weight: 500;
  color: var(--calc-text-primary);
}

.calc-preview__icon {
  width: 16px;
  height: 16px;
  color: var(--calc-accent-teal);
}

.calc-preview__toggle {
  color: var(--calc-text-secondary);
  transition: transform 0.2s ease;
}

.calc-preview__toggle--open {
  transform: rotate(180deg);
}

.calc-preview__content {
  padding: var(--calc-spacing-md);
  border-top: 1px solid var(--calc-border);
}

/* Preview mode tabs */
.calc-preview__tabs {
  display: flex;
  gap: var(--calc-spacing-xs);
  margin-bottom: var(--calc-spacing-md);
  padding: 3px;
  background: var(--calc-bg-input);
  border-radius: var(--calc-radius-md);
}

.calc-preview__tab {
  flex: 1;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 500;
  color: var(--calc-text-muted);
  background: transparent;
  border: none;
  border-radius: var(--calc-radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.calc-preview__tab:hover {
  color: var(--calc-text-primary);
}

.calc-preview__tab--active {
  background: var(--calc-bg-card);
  color: var(--calc-text-primary);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.calc-preview__mode {
  /* Container for mode-specific content */
}

.calc-preview__category {
  margin-bottom: var(--calc-spacing-md);
}

.calc-preview__category-title {
  font-size: 10px;
  font-weight: 600;
  color: var(--calc-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--calc-spacing-sm);
}

.calc-preview__item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--calc-spacing-xs) 0;
}

.calc-preview__item-name {
  font-size: 13px;
  color: var(--calc-text-primary);
}

.calc-preview__item-price {
  font-size: 13px;
  font-weight: 600;
  color: var(--calc-accent-teal);
}

/* Selection mode item with checkbox */
.calc-preview__selection-item {
  display: flex;
  align-items: flex-start;
  gap: var(--calc-spacing-sm);
  padding: var(--calc-spacing-sm) var(--calc-spacing-md);
  background: var(--calc-bg-input);
  border: 1px solid var(--calc-border);
  border-radius: var(--calc-radius-md);
  margin-bottom: var(--calc-spacing-xs);
  cursor: default;
}

.calc-preview__checkbox {
  width: 20px;
  height: 20px;
  min-width: 20px;
  border: 2px solid var(--calc-accent-teal);
  border-radius: var(--calc-radius-sm);
  background: rgba(16, 185, 129, 0.15); /* Fallback */
  background: color-mix(in srgb, var(--calc-accent-teal) 15%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.calc-preview__checkbox svg {
  width: 12px;
  height: 12px;
  color: var(--calc-accent-teal);
}

.calc-preview__selection-info {
  flex: 1;
  min-width: 0;
}

.calc-preview__selection-name {
  font-size: 13px;
  color: var(--calc-text-primary);
  line-height: 1.3;
}

.calc-preview__selection-brand {
  font-size: 11px;
  color: var(--calc-text-muted);
}

.calc-preview__selection-price {
  font-size: 13px;
  font-weight: 600;
  color: var(--calc-accent-teal);
  white-space: nowrap;
}

.calc-preview__selection-qty {
  font-size: 10px;
  color: var(--calc-text-muted);
  text-align: right;
}

/* Selection summary */
.calc-preview__selection-summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--calc-spacing-sm) var(--calc-spacing-md);
  background: rgba(16, 185, 129, 0.1); /* Fallback */
  background: color-mix(in srgb, var(--calc-accent-teal) 10%, transparent);
  border: 1px solid rgba(16, 185, 129, 0.3); /* Fallback */
  border: 1px solid color-mix(in srgb, var(--calc-accent-teal) 30%, transparent);
  border-radius: var(--calc-radius-md);
  margin-top: var(--calc-spacing-sm);
}

.calc-preview__selection-count {
  font-size: 12px;
  color: var(--calc-text-secondary);
}

.calc-preview__selection-count strong {
  color: var(--calc-text-primary);
}

.calc-preview__selection-total {
  font-size: 14px;
  font-weight: 700;
  color: var(--calc-accent-teal);
}

.calc-preview__total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--calc-spacing-md);
  border-top: 1px solid var(--calc-border);
  margin-top: var(--calc-spacing-md);
}

.calc-preview__total-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--calc-text-primary);
}

.calc-preview__total-value {
  font-size: 16px;
  font-weight: 700;
  color: var(--calc-accent-teal);
}

/* ============================================
   Action Buttons
   ============================================ */
.calc-actions {
  display: flex;
  flex-direction: column;
  gap: var(--calc-spacing-sm);
  width: 100%;
}

.calc-actions__row {
  display: flex;
  gap: var(--calc-spacing-sm);
  width: 100%;
}

/* Base button styles */
.calc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--calc-spacing-sm);
  padding: var(--calc-spacing-sm) var(--calc-spacing-lg);
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--calc-radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

/* Secondary button (Очистити, Зберегти) */
.calc-btn--secondary {
  flex: 1 1 0;           /* Equal width */
  min-width: 0;          /* Allow shrinking */
  background: var(--calc-bg-card);
  border: 2px solid var(--calc-border);
  color: var(--calc-text-primary);
}

.calc-btn--secondary:hover {
  background: var(--calc-bg-input);
  border-color: var(--calc-border-light);
}

/* Primary button (Надіслати клієнту) */
.calc-btn--primary {
  width: 100%;
  background: var(--calc-accent-teal);
  color: white;
  padding: var(--calc-spacing-md) var(--calc-spacing-lg);
  font-weight: 600;
}

.calc-btn--primary:hover {
  background: var(--calc-accent-teal-hover);
}

/* Half-width primary button (when paired with selection) */
.calc-btn--primary.calc-btn--half {
  flex: 1 1 0;
  min-width: 0;
  width: auto;
}

/* Selection button (На вибір) - amber/orange for clear distinction from primary green */
.calc-btn--selection {
  flex: 1 1 0;
  min-width: 0;
  background: var(--calc-bg-card);
  border: 2px solid #f59e0b; /* amber-500 */
  color: #d97706; /* amber-600 */
  padding: var(--calc-spacing-md) var(--calc-spacing-lg);
  font-weight: 600;
}

.calc-btn--selection:hover {
  background: rgba(245, 158, 11, 0.1); /* amber-500 at 10% */
  border-color: #d97706; /* amber-600 on hover */
}

/* Add button (+ Додати запчастину) */
.calc-btn--add {
  width: 100%;
  background: transparent;
  border: 2px dashed var(--calc-border);
  color: var(--calc-text-secondary);
  padding: var(--calc-spacing-md);
  font-weight: 500;
}

.calc-btn--add:hover {
  border-color: var(--calc-accent-teal);
  color: var(--calc-accent-teal);
  background: rgba(16, 185, 129, 0.05); /* Fallback */
  background: color-mix(in srgb, var(--calc-accent-teal) 5%, transparent);
}

/* Button disabled states */
.calc-btn:disabled {
  cursor: not-allowed;
  opacity: 0.5;
  pointer-events: none;
}

.calc-btn--primary:disabled {
  background: var(--calc-text-muted);
}

.calc-btn--secondary:disabled {
  border-color: var(--calc-border);
  color: var(--calc-text-muted);
}

/* Focus visible for accessibility */
.calc-btn:focus-visible {
  outline: 2px solid var(--calc-border-focus);
  outline-offset: 2px;
}

.calc-quantity__btn:focus-visible {
  outline: 2px solid var(--calc-border-focus);
  outline-offset: 2px;
}

.calc-delete-btn:focus-visible {
  outline: 2px solid var(--calc-error);
  outline-offset: 2px;
}

.calc-input:focus-visible {
  outline: none; /* Already has focus styles via border */
}

/* ============================================
   Empty State
   ============================================ */
.calc-empty {
  text-align: center;
  padding: var(--calc-spacing-xl);
}

.calc-empty__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--calc-spacing-md);
  background: var(--calc-bg-card);
  border: 2px dashed var(--calc-border-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--calc-text-secondary);
}

.calc-empty__text {
  font-size: 13px;
  color: var(--calc-text-secondary);
}

/* ============================================
   Scrollable Parts List
   ============================================ */
.calc-parts-list {
  max-height: 300px;
  overflow-y: auto;
  margin-bottom: var(--calc-spacing-lg);
  /* Firefox scrollbar */
  scrollbar-width: thin;
  scrollbar-color: var(--calc-border-light) var(--calc-bg-primary);
}

.calc-parts-list::-webkit-scrollbar {
  width: 6px;
}

.calc-parts-list::-webkit-scrollbar-track {
  background: var(--calc-bg-primary);
  border-radius: 3px;
}

.calc-parts-list::-webkit-scrollbar-thumb {
  background: var(--calc-border-light);
  border-radius: 3px;
}

.calc-parts-list::-webkit-scrollbar-thumb:hover {
  background: var(--calc-text-muted);
}

/* ============================================
   Autocomplete Dropdown
   ============================================ */
.calc-autocomplete {
  position: relative;
}

.calc-autocomplete__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--calc-bg-card, #ffffff);
  border: 1px solid var(--calc-border, #d1d5db);
  border-radius: var(--calc-radius-md, 8px);
  margin-top: 4px;
  max-height: 200px;
  overflow-y: auto;
  z-index: 9999;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Portal dropdown - uses fixed positioning to escape overflow:hidden */
.calc-autocomplete__dropdown.fixed {
  position: fixed;
  top: auto;
  left: auto;
  right: auto;
  margin-top: 0;
  z-index: 99999;
  min-width: 180px;
}

/* Hidden state */
.calc-autocomplete__dropdown.hidden {
  display: none !important;
}

/* Open upward when near bottom of container */
/* Note: position values set dynamically in JS for fixed positioning */
.calc-autocomplete__dropdown--up {
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.15);
}

/* Non-fixed upward dropdown (fallback) */
.calc-autocomplete__dropdown--up:not(.fixed) {
  top: auto;
  bottom: 100%;
  margin-top: 0;
  margin-bottom: 4px;
}

/* Dark theme upward shadow */
.dark .calc-autocomplete__dropdown--up,
.parts-calculator--dark .calc-autocomplete__dropdown--up {
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.4);
}

/* Dark theme stronger shadow */
.dark .calc-autocomplete__dropdown,
.parts-calculator--dark .calc-autocomplete__dropdown {
  background: var(--calc-bg-card, #1a2332);
  border-color: var(--calc-border, #1f2937);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.calc-autocomplete__item {
  padding: 10px 12px;
  cursor: pointer;
  font-size: 13px;
  color: var(--calc-text-primary, #111827);
  transition: background 0.15s ease;
  border-bottom: 1px solid var(--calc-border, #e5e7eb);
}

.calc-autocomplete__item:last-child {
  border-bottom: none;
}

.calc-autocomplete__item:hover,
.calc-autocomplete__item--active {
  background: rgba(16, 185, 129, 0.15); /* Fallback */
  background: color-mix(in srgb, var(--calc-accent-teal, #10b981) 15%, transparent);
  color: var(--calc-accent-teal, #10b981);
}

.calc-autocomplete__empty {
  padding: 10px 12px;
  font-size: 13px;
  color: var(--calc-text-muted, #6b7280);
  text-align: center;
}

/* Add new item button in dropdown */
.calc-autocomplete__item--add {
  color: var(--calc-accent-teal, #10b981);
  font-weight: 500;
  background: rgba(16, 185, 129, 0.12);
  border: 1px dashed var(--calc-accent-teal, #10b981);
  border-bottom: 1px dashed var(--calc-accent-teal, #10b981);
  margin: 4px;
  border-radius: var(--calc-radius-sm, 4px);
  display: flex;
  align-items: center;
}

.calc-autocomplete__item--add:hover,
.calc-autocomplete__item--add.calc-autocomplete__item--active {
  background: rgba(16, 185, 129, 0.25);
  border-style: solid;
  color: var(--calc-accent-teal, #10b981);
}

/* Icon for add button */
.calc-add-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  background: var(--calc-accent-teal, #10b981);
  color: white;
  border-radius: 50%;
  font-weight: bold;
  font-size: 14px;
  margin-right: 6px;
  flex-shrink: 0;
}

/* Dark theme */
.dark .calc-autocomplete__item--add,
.parts-calculator--dark .calc-autocomplete__item--add {
  background: rgba(16, 185, 129, 0.15);
}

.dark .calc-autocomplete__item--add:hover,
.dark .calc-autocomplete__item--add.calc-autocomplete__item--active,
.parts-calculator--dark .calc-autocomplete__item--add:hover,
.parts-calculator--dark .calc-autocomplete__item--add.calc-autocomplete__item--active {
  background: rgba(16, 185, 129, 0.3);
}

/* Dark theme */
.dark .calc-autocomplete__item {
  color: var(--calc-text-primary, #f9fafb);
  border-color: var(--calc-border, #374151);
}

/* ============================================
   Confirmation Dialog
   ============================================ */
.calc-confirm-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--calc-spacing-lg);
}

/* Darker overlay for dark theme */
.dark .calc-confirm-overlay,
.parts-calculator--dark .calc-confirm-overlay {
  background: rgba(0, 0, 0, 0.6);
}

.calc-confirm-dialog {
  background: var(--calc-bg-secondary);
  border: 1px solid var(--calc-border);
  border-radius: var(--calc-radius-lg);
  width: 100%;
  max-width: min(90vw, 480px);
  max-height: 80vh;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.calc-confirm-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--calc-border);
  font-size: 16px;
  font-weight: 600;
  color: var(--calc-text-primary);
}

.calc-confirm-close {
  background: transparent;
  border: none;
  color: var(--calc-text-muted);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--calc-radius-sm);
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.calc-confirm-close:hover {
  color: var(--calc-text-primary);
  background: var(--calc-bg-input);
}

.calc-confirm-close svg {
  width: 20px;
  height: 20px;
}

.calc-confirm-body {
  padding: 16px 20px;
  max-height: 50vh;
  overflow-y: auto;
}

.calc-confirm-text {
  font-size: 14px;
  color: var(--calc-text-secondary);
  margin: 0 0 16px 0;
}

.calc-confirm-preview {
  background: var(--calc-bg-card);
  border: 1px solid var(--calc-border);
  border-radius: var(--calc-radius-md);
  padding: 12px 16px;
  font-size: 13px;
}

.calc-confirm-preview-item {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 8px;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--calc-border);
}

.calc-confirm-preview-item:last-of-type {
  border-bottom: none;
}

.calc-confirm-preview-item__name {
  font-size: 13px;
  color: var(--calc-text-primary);
  line-height: 1.4;
}

.calc-confirm-preview-item__qty {
  font-size: 12px;
  color: var(--calc-text-muted);
  margin-left: 4px;
}

.calc-confirm-preview-item__meta {
  display: flex;
  gap: 6px;
  align-items: center;
}

.calc-confirm-preview-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 3px 8px;
  border-radius: var(--calc-radius-sm);
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
}

.calc-confirm-preview-badge--delivery {
  background: rgba(6, 182, 212, 0.15);
  color: var(--calc-accent-cyan);
}

.calc-confirm-preview-badge--prepay {
  background: rgba(245, 158, 11, 0.15);
  color: var(--calc-warning);
}

.calc-confirm-preview-item__price {
  font-size: 14px;
  font-weight: 600;
  color: var(--calc-accent-teal);
  text-align: right;
  white-space: nowrap;
  min-width: 70px;
}

.calc-confirm-preview-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0 4px;
  margin-top: 8px;
  border-top: 2px solid var(--calc-border);
  font-weight: 600;
}

.calc-confirm-preview-total span:first-child {
  font-size: 14px;
  color: var(--calc-text-primary);
}

.calc-confirm-preview-total span:last-child {
  font-size: 16px;
  color: var(--calc-accent-teal);
}

.calc-confirm-footer {
  display: flex;
  gap: 12px;
  padding: 16px 20px;
  border-top: 1px solid var(--calc-border);
  background: var(--calc-bg-card);
}

.calc-confirm-footer .calc-btn {
  flex: 1;
  padding: 12px 20px;
  font-size: 14px;
}

.calc-confirm-footer .calc-btn--secondary {
  background: var(--calc-bg-secondary);
}

.calc-confirm-footer .calc-btn--primary {
  background: var(--calc-accent-teal);
  border: 2px solid var(--calc-accent-teal);
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.calc-part-item {
  animation: fadeIn 0.2s ease;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 400px) {
  .parts-calculator {
    padding: var(--calc-spacing-md);
  }

  .calc-totals {
    flex-direction: column;
  }

  .calc-total-card {
    padding: var(--calc-spacing-sm);
  }
}

/* ============================================
   Row 4: Delivery + Prepayment (CALC-1, CALC-3)
   ============================================ */
.calc-part-item__delivery-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--calc-spacing-sm);
  border-top: 1px dashed var(--calc-border);
  margin-top: var(--calc-spacing-sm);
}

/* Delivery days group */
.calc-delivery-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.calc-delivery-icon {
  width: 14px;
  height: 14px;
  color: var(--calc-text-muted);
  flex-shrink: 0;
}

.calc-delivery-input {
  width: 36px;
  height: 26px;
  padding: 2px 4px;
  background: var(--calc-bg-input);
  border: 1px solid var(--calc-border);
  border-radius: var(--calc-radius-sm);
  color: var(--calc-text-primary);
  text-align: center;
  font-size: 12px;
  font-weight: 500;
}

.calc-delivery-input:focus {
  outline: none;
  border-color: var(--calc-border-focus);
  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.1);
}

.calc-delivery-input::-webkit-inner-spin-button,
.calc-delivery-input::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.calc-delivery-input[type=number] {
  -moz-appearance: textfield;
}

.calc-delivery-unit {
  font-size: 11px;
  color: var(--calc-text-muted);
}

/* Prepayment checkbox group */
.calc-prepayment-group {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--calc-radius-sm);
  transition: background 0.15s ease;
}

.calc-prepayment-group:hover {
  background: rgba(245, 158, 11, 0.08);
}

/* Custom checkbox styling */
.calc-prepayment-checkbox {
  /* Hide native checkbox */
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.calc-prepayment-box {
  width: 16px;
  height: 16px;
  border: 2px solid var(--calc-border-light);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.calc-prepayment-box svg {
  width: 10px;
  height: 10px;
  color: white;
  opacity: 0;
  transform: scale(0.5);
  transition: all 0.15s ease;
}

/* Checked state */
.calc-prepayment-checkbox:checked + .calc-prepayment-box {
  background: var(--calc-warning);
  border-color: var(--calc-warning);
}

.calc-prepayment-checkbox:checked + .calc-prepayment-box svg {
  opacity: 1;
  transform: scale(1);
}

/* Focus state */
.calc-prepayment-checkbox:focus-visible + .calc-prepayment-box {
  box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.3);
}

.calc-prepayment-icon {
  width: 14px;
  height: 14px;
  color: var(--calc-text-muted);
  flex-shrink: 0;
  transition: color 0.15s ease;
}

.calc-prepayment-text {
  font-size: 11px;
  color: var(--calc-text-muted);
  user-select: none;
  transition: color 0.15s ease;
}

/* Checked state for text and icon */
.calc-prepayment-group:has(:checked) .calc-prepayment-text,
.calc-prepayment-group:has(:checked) .calc-prepayment-icon {
  color: var(--calc-warning);
}

/* Dark theme overrides for Row 4 */
.dark .calc-part-item__delivery-row,
.parts-calculator--dark .calc-part-item__delivery-row {
  border-top-color: var(--calc-border);
}

.dark .calc-prepayment-group:hover,
.parts-calculator--dark .calc-prepayment-group:hover {
  background: rgba(245, 158, 11, 0.12);
}

.dark .calc-prepayment-box,
.parts-calculator--dark .calc-prepayment-box {
  border-color: var(--calc-border-light);
}

/* ============================================
   Preview Meta Badges (CALC-1/2/3)
   ============================================ */
.calc-preview__item-meta {
  font-size: 10px;
  color: var(--calc-text-muted);
  margin-left: 8px;
  white-space: nowrap;
}

.calc-preview__selection-meta {
  display: flex;
  gap: 6px;
  font-size: 10px;
  color: var(--calc-text-muted);
  margin-top: 4px;
  padding-left: 28px;
}

.calc-meta-prepay {
  color: var(--calc-warning);
}

/* Dark theme for confirm badges */
.dark .calc-confirm-preview-badge--delivery,
.parts-calculator--dark .calc-confirm-preview-badge--delivery {
  background: rgba(6, 182, 212, 0.2);
}

.dark .calc-confirm-preview-badge--prepay,
.parts-calculator--dark .calc-confirm-preview-badge--prepay {
  background: rgba(245, 158, 11, 0.2);
}

/* ============================================
   Internal Row (Article + Supplier) - Engineer Only
   ============================================ */
.calc-part-item__row--internal {
  background: rgba(var(--calc-accent-cyan-rgb), 0.05);
  border-radius: var(--calc-radius-sm);
  padding: var(--calc-spacing-xs) var(--calc-spacing-sm);
  margin-top: calc(-1 * var(--calc-spacing-xs));
  margin-bottom: var(--calc-spacing-sm);
}

/* Select dropdown */
.calc-select {
  background: var(--calc-bg-input);
  border: 1px solid var(--calc-border);
  border-radius: var(--calc-radius-sm);
  padding: var(--calc-spacing-xs) var(--calc-spacing-sm);
  color: var(--calc-text-primary);
  font-size: 12px;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%236b7280' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 4px center;
  background-size: 14px;
  padding-right: 22px;
}

.calc-select:focus {
  outline: none;
  border-color: var(--calc-border-focus);
}

.calc-select--small {
  font-size: 11px;
  padding: 4px 20px 4px 6px;
}

/* Dark theme for internal row */
.dark .calc-part-item__row--internal,
.parts-calculator--dark .calc-part-item__row--internal {
  background: rgba(6, 182, 212, 0.08);
}

.dark .calc-select,
.parts-calculator--dark .calc-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%239ca3af' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
}