/* Tools — kitchen appliance aesthetic for myroyalchef.com
   Warm, inviting, food-focused. NOT enterprise panels.
   Design tokens come from ai-design-system.css (warm dark + burnt orange). */

/* ═══════════════════════════════════════════
   Tools Index
   ═══════════════════════════════════════════ */

.tools-index {
  padding: var(--space-12) 0 var(--space-14);
}

.tools-header {
  margin-bottom: var(--space-10);
  text-align: left;
}

.tools-kicker {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: var(--tracking-caps);
  margin-bottom: var(--space-3);
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-sm);
}

.tools-title {
  font-size: var(--font-size-5xl);
  line-height: var(--lh-tight);
  margin-bottom: var(--space-4);
  max-width: 18ch;
}

.tools-lead {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  line-height: var(--lh-relaxed);
  max-width: 52ch;
}

/* ── Tool Cards — warm, inviting, premium ── */
.tools-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

@media (min-width: 768px) {
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }
}

.tool-card {
  display: flex;
  flex-direction: column;
  padding: var(--space-6);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-secondary);
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.tool-card:hover {
  border-color: var(--accent-border);
  background: var(--bg-tertiary);
}

.tool-card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-4);
  color: var(--accent);
  transition: transform var(--transition);
}

.tool-card-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: var(--space-4);
  font-size: var(--font-size-lg);
  color: var(--accent);
  font-weight: 600;
  transition: transform var(--transition-fast);
}

.tool-card:hover .tool-card-arrow {
  transform: translateX(4px);
}

@media (prefers-reduced-motion: reduce) {
  .tool-card:hover .tool-card-arrow {
    transform: none;
  }
}

.tool-card-label {
  font-size: 10px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-2);
}

.tool-card h2 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
  color: var(--text-primary);
  line-height: var(--lh-snug);
}

.tool-card p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0 0 var(--space-3);
  flex: 1;
}

.tool-card-meta {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  display: block;
  padding-top: var(--space-3);
  border-top: 1px solid var(--border);
}

/* ═══════════════════════════════════════════
   Tool Page Shell
   ═══════════════════════════════════════════ */

.tool-page {
  padding: var(--space-8) 0 var(--space-12);
}

.tool-nav {
  margin-bottom: var(--space-6);
}

.tool-back {
  font-size: var(--font-size-sm);
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.tool-back:hover {
  text-decoration: underline;
}

.tool-header {
  margin-bottom: var(--space-8);
}

.tool-header h1 {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-2);
  line-height: var(--lh-tight);
}

.tool-header p {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  line-height: var(--lh-relaxed);
  max-width: 60ch;
}

/* ═══════════════════════════════════════════
   Tool Input Area — warm kitchen station feel
   ═══════════════════════════════════════════ */

.tool-input-area {
  padding: var(--space-6);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--bg-secondary);
  margin-bottom: var(--space-6);
  position: relative;
  overflow: hidden;
}

.tool-input-area::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent);
  opacity: 0.7;
}

.tool-input-area label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
  display: block;
}

.tool-input-area .hint {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  margin-bottom: var(--space-3);
  display: block;
  line-height: 1.5;
}

.tool-input-row {
  display: flex;
  gap: var(--space-3);
  align-items: flex-end;
}

.tool-input-row input,
.tool-input-row select {
  flex: 1;
  margin-bottom: 0;
}

.tool-input-row .btn {
  flex-shrink: 0;
  white-space: nowrap;
}

@media (max-width: 480px) {
  .tool-input-row {
    flex-direction: column;
    align-items: stretch;
  }
  .tool-input-row .btn {
    width: 100%;
  }
}

/* ═══════════════════════════════════════════
   Example Chips
   ═══════════════════════════════════════════ */

.tool-examples {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.tool-examples-label {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  margin-right: var(--space-1);
  font-weight: 500;
}

.tool-example-chip {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-family: inherit;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-primary);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
}

.tool-example-chip:hover {
  color: var(--text-primary);
  background: var(--accent-dim);
  border-color: var(--accent);
}

.tool-example-chip:active {
  transform: scale(0.96);
}

/* ═══════════════════════════════════════════
   Tool Results
   ═══════════════════════════════════════════ */

.tool-results {
  min-height: 120px;
}

.tool-empty {
  padding: var(--space-6) var(--space-5);
  text-align: left;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  background: var(--bg-secondary);
}

.tool-empty strong {
  display: block;
  color: var(--text-primary);
  font-size: var(--font-size-md);
  margin-bottom: var(--space-1);
  font-weight: 600;
}

.tool-empty p {
  max-width: 56ch;
  margin: 0;
  line-height: 1.55;
  font-size: var(--font-size-sm);
}

.tool-empty .tool-empty-hint {
  margin-top: var(--space-3);
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.tool-empty .tool-empty-hint kbd {
  font-family: inherit;
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--text-secondary);
  padding: 2px var(--space-2);
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

/* ═══════════════════════════════════════════
   Shared tab pill navigation (cost, converter)
   Replaces thin-bottom-line tabs with chunky pill system
   ═══════════════════════════════════════════ */

.cost-tabs,
.conv-tabs {
  display: flex;
  gap: var(--space-1);
  margin-bottom: var(--space-5);
  padding: var(--space-1);
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  width: fit-content;
  max-width: 100%;
  flex-wrap: wrap;
}

.cost-tab,
.conv-tab {
  padding: var(--space-2) var(--space-4);
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
}

.cost-tab:hover,
.conv-tab:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.cost-tab.is-active,
.conv-tab.is-active {
  color: var(--bg-primary);
  background: var(--accent);
  font-weight: 600;
}

.cost-tab-panel,
.conv-tab-panel {
  display: none;
}

.cost-tab-panel.is-active,
.conv-tab-panel.is-active {
  display: block;
}

/* ═══════════════════════════════════════════
   Visual Ingredient Cards (cost tool)
   ═══════════════════════════════════════════ */

.ingredient-cards {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.ingredient-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-primary);
  animation: cardSlideIn 0.25s ease-out both;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.ingredient-card:hover {
  border-color: var(--border-strong);
  background: var(--bg-secondary);
}

.ingredient-card-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--accent-dim);
  color: var(--accent);
  flex-shrink: 0;
}

.ingredient-card-icon svg {
  width: 20px;
  height: 20px;
}

.ingredient-card-info {
  flex: 1;
  min-width: 0;
}

.ingredient-card-name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.ingredient-card-detail {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.ingredient-card-cost {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--accent);
  text-align: right;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.ingredient-card-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: var(--font-size-lg);
  padding: 0;
  border-radius: 50%;
  flex-shrink: 0;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.ingredient-card-remove:hover {
  color: var(--error);
  background: var(--error-dim);
}

@keyframes cardSlideIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.ingredient-card:nth-child(2) { animation-delay: 0.03s; }
.ingredient-card:nth-child(3) { animation-delay: 0.06s; }
.ingredient-card:nth-child(4) { animation-delay: 0.09s; }
.ingredient-card:nth-child(5) { animation-delay: 0.12s; }
.ingredient-card:nth-child(6) { animation-delay: 0.15s; }
.ingredient-card:nth-child(7) { animation-delay: 0.18s; }
.ingredient-card:nth-child(8) { animation-delay: 0.21s; }
.ingredient-card:nth-child(9) { animation-delay: 0.24s; }
.ingredient-card:nth-child(10) { animation-delay: 0.27s; }

/* ═══════════════════════════════════════════
   Cost Stats — clean flat tiles
   ═══════════════════════════════════════════ */
.cost-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

@media (max-width: 768px) {
  .cost-stats {
    grid-template-columns: 1fr;
  }
}

.cost-stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-5);
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
}

.cost-stat.accent { background: var(--accent-dim); }
.cost-stat.success { background: var(--success-dim); }

.cost-stat-label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.cost-stat-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}

.cost-stat-sub {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  line-height: 1.4;
}

.cost-stat.accent .cost-stat-label { color: var(--accent-text); }
.cost-stat.accent .cost-stat-value { color: var(--accent-text); }
.cost-stat.success .cost-stat-label { color: var(--success); }
.cost-stat.success .cost-stat-value { color: var(--success); }

@media (max-width: 480px) {
  .cost-stats {
    grid-template-columns: 1fr;
  }
}

/* ── Budget indicator ── */
.budget-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.budget-row label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: 0;
  white-space: nowrap;
  font-weight: 500;
}

.budget-row input {
  width: auto;
  flex: 0 0 auto;
  margin-bottom: 0;
}

.budget-indicator {
  margin-left: auto;
  font-size: var(--font-size-xs);
  font-weight: 600;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-md);
  display: none;
}

.budget-indicator.is-visible {
  display: block;
}

.budget-indicator.under-budget {
  background: var(--success-dim);
  color: var(--success);
  border: 1px solid rgba(74, 222, 128, 0.25);
}

.budget-indicator.over-budget {
  background: var(--error-dim);
  color: var(--error);
  border: 1px solid rgba(248, 113, 113, 0.25);
}



/* ── Cost Chart (horizontal bar chart) ── */
.cost-chart {
  margin-bottom: var(--space-4);
  padding: var(--space-5);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--bg-primary);
}

.cost-chart-title {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-3);
}

.cost-chart-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
  animation: chartBarIn 0.4s ease-out both;
}

.cost-chart-bar-label {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  width: 140px;
  flex-shrink: 0;
  text-align: right;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cost-chart-bar-track {
  flex: 1;
  height: 18px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  overflow: hidden;
  position: relative;
}

.cost-chart-bar-fill {
  height: 100%;
  border-radius: var(--radius-sm);
  background: linear-gradient(90deg, var(--accent-strong), var(--accent));
  transition: width var(--transition);
  min-width: 4px;
}

.cost-chart-bar-value {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  width: 56px;
  flex-shrink: 0;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

@keyframes chartBarIn {
  from {
    opacity: 0;
    transform: translateX(-8px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.cost-chart-bar:nth-child(2) { animation-delay: 0.05s; }
.cost-chart-bar:nth-child(3) { animation-delay: 0.1s; }
.cost-chart-bar:nth-child(4) { animation-delay: 0.15s; }
.cost-chart-bar:nth-child(5) { animation-delay: 0.2s; }
.cost-chart-bar:nth-child(6) { animation-delay: 0.25s; }
.cost-chart-bar:nth-child(7) { animation-delay: 0.3s; }
.cost-chart-bar:nth-child(8) { animation-delay: 0.35s; }
.cost-chart-bar:nth-child(9) { animation-delay: 0.4s; }
.cost-chart-bar:nth-child(10) { animation-delay: 0.45s; }

/* ── Cost field label ── */
.cost-field-label {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  margin-bottom: var(--space-1);
  display: block;
}

.cost-yield-hint {
  font-size: var(--font-size-xs);
  color: var(--accent-text);
  padding: var(--space-2) var(--space-3);
  background: var(--accent-dim);
  border-radius: var(--radius-md);
  margin-top: var(--space-2);
  border: 1px solid var(--accent-border);
}

/* ── Ingredient grid ── */
.cost-ingredient-grid {
  display: grid;
  grid-template-columns: 2fr 0.7fr 0.8fr 0.8fr 0.6fr auto;
  gap: var(--space-2);
  align-items: end;
  margin-bottom: var(--space-3);
}

@media (max-width: 768px) {
  .cost-ingredient-grid {
    grid-template-columns: 1fr 1fr;
  }
  .cost-ingredient-grid button {
    grid-column: span 2;
  }
}

.cost-component-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr auto;
  gap: var(--space-2);
  align-items: end;
}

@media (max-width: 480px) {
  .cost-component-grid {
    grid-template-columns: 1fr;
  }
}

.cost-secondary-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: flex-end;
  margin-top: var(--space-4);
  padding-top: var(--space-5);
  border-top: 1px solid var(--border);
}

/* ── Yield tag in cards ── */
.cost-yield-tag {
  font-size: 10px;
  padding: 1px var(--space-2);
  background: var(--accent-dim);
  color: var(--accent-text);
  border-radius: var(--radius-sm);
  font-weight: 600;
}

/* ── Component list ── */
.cost-component-list {
  margin-top: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.cost-component-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-secondary);
  gap: var(--space-2);
}

.cost-component-info {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}

.cost-component-name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.cost-component-cost {
  font-size: var(--font-size-xs);
  color: var(--accent-text);
}

.cost-component-actions {
  display: flex;
  gap: var(--space-1);
  flex-shrink: 0;
}

.btn-sm {
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  min-height: 32px;
}

.btn-danger-subtle {
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius-md);
  font-size: var(--font-size-xs);
  font-family: inherit;
  min-height: 32px;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.btn-danger-subtle:hover {
  color: var(--error);
  border-color: var(--error);
}

/* ── Price book ── */
.cost-pricebook-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.cost-pb-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
}

.cost-pb-name {
  flex: 1;
  text-transform: capitalize;
  color: var(--text-primary);
  font-weight: 500;
}

.cost-pb-details {
  color: var(--accent-text);
  font-size: var(--font-size-xs);
}

.cost-empty-sub {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  padding: var(--space-3);
}

.cost-import-status {
  font-size: var(--font-size-xs);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  align-self: center;
}

.cost-import-status.ok {
  color: var(--success);
  background: var(--success-dim);
}

.cost-import-status.warn {
  color: var(--warning);
  background: var(--warning-dim);
}

/* ═══════════════════════════════════════════
   Substitution Smart
   ═══════════════════════════════════════════ */

.sub-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--space-6);
  align-items: start;
}

@media (max-width: 768px) {
  .sub-layout {
    grid-template-columns: 1fr;
  }
}

/* Sidebar */
.sub-sidebar {
  position: sticky;
  top: var(--space-4);
}

.sub-sidebar-section {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  margin-bottom: var(--space-3);
}

.sub-sidebar-title {
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-3);
}

.sub-categories {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sub-cat-chip {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  cursor: pointer;
  text-align: left;
  transition: background var(--transition-fast), color var(--transition-fast);
  font-family: inherit;
}

.sub-cat-chip:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.sub-cat-chip.is-active {
  color: var(--accent);
  background: var(--accent-dim);
  font-weight: 600;
}

.sub-cat-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sub-cat-icon svg {
  width: 16px;
  height: 16px;
}

.sub-cat-count {
  color: var(--text-muted);
  font-size: var(--font-size-xs);
  margin-left: auto;
}

/* History chips */
#subHistory .sub-sidebar-title {
  margin-bottom: var(--space-2);
}

.sub-history-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.sub-history-label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--text-muted);
}

.sub-history-clear {
  font-family: inherit;
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--text-muted);
  background: none;
  border: none;
  cursor: pointer;
  padding: 2px var(--space-1);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}

.sub-history-clear:hover {
  color: var(--accent);
}

.sub-history-chips {
  display: flex;
  flex-wrap: wrap;
}

.sub-history-chip {
  display: inline-flex;
  align-items: center;
  padding: 3px var(--space-3);
  margin: 0 var(--space-1) var(--space-1) 0;
  font-size: var(--font-size-xs);
  font-family: inherit;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 150ms ease;
}

.sub-history-chip:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* Input area (substitution) */
.sub-input-row {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.sub-qty-search {
  flex-direction: row;
  gap: var(--space-4);
  align-items: flex-end;
}

@media (max-width: 640px) {
  .sub-qty-search {
    flex-direction: column;
    gap: var(--space-3);
    align-items: stretch;
  }
}

.sub-qty-group {
  flex-shrink: 0;
  min-width: 160px;
}

.sub-qty-group label,
.sub-search-group label {
  display: block;
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: var(--space-1);
}

.sub-qty-row {
  display: flex;
  gap: var(--space-2);
}

.sub-qty-row input {
  width: 70px;
  flex-shrink: 0;
  margin-bottom: 0;
}

.sub-qty-row select {
  margin-bottom: 0;
}

.sub-search-group {
  flex: 1;
  min-width: 0;
}

.sub-search-row {
  display: flex;
  gap: var(--space-2);
  flex-direction: row;
  align-items: center;
}

.sub-search-row input {
  flex: 1;
  min-width: 0;
  margin-bottom: 0;
}

.sub-search-row .btn {
  flex-shrink: 0;
}

@media (max-width: 480px) {
  .sub-search-row {
    flex-direction: column;
    align-items: stretch;
  }
  .sub-search-row .btn {
    width: 100%;
  }
}

.sub-controls-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-top: var(--space-4);
  flex-wrap: wrap;
}

.sub-multi-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--font-size-xs);
  white-space: nowrap;
  font-family: inherit;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-1) var(--space-3);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.sub-multi-toggle:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.sub-multi-toggle.is-active {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-dim);
}

/* Autocomplete dropdown */
.sub-autocomplete {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: 4px;
  background: var(--bg-primary);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  z-index: 100;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  max-height: 280px;
  overflow-y: auto;
}

.sub-ac-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.sub-ac-item:hover {
  background: var(--bg-tertiary);
}

.sub-ac-icon {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
  background: var(--accent-dim);
  border-radius: var(--radius-sm);
}

.sub-ac-icon svg {
  width: 14px;
  height: 14px;
}

.sub-ac-name {
  flex: 1;
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  font-weight: 500;
}

.sub-ac-cat {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

/* Category item grid */
.sub-filter-label {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-3);
}

.sub-item-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-2);
}

.sub-item-chip {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  cursor: pointer;
  font-family: inherit;
  text-align: left;
  transition: all var(--transition-fast);
}

.sub-item-chip:hover {
  color: var(--text-primary);
  border-color: var(--accent-border);
  background: var(--accent-dim);
}

.sub-item-icon {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
  background: var(--accent-dim);
  border-radius: var(--radius-sm);
}

.sub-item-icon svg {
  width: 14px;
  height: 14px;
}

/* Converter hint */
.sub-converter-hint {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  margin-bottom: var(--space-4);
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

.sub-converter-hint svg {
  flex-shrink: 0;
  color: var(--accent);
}

.sub-converter-hint a {
  color: var(--accent);
  text-decoration: underline;
  margin-left: auto;
  font-weight: 600;
}

/* Results label */
.sub-results-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
}

.sub-results-label strong {
  color: var(--text-primary);
}

.sub-converter-link {
  float: right;
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
  font-size: var(--font-size-xs);
}

.sub-converter-link:hover {
  text-decoration: underline;
}

/* Substitution match quality bars */
.sub-match-bar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.sub-match-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.sub-match-dot.excellent {
  background: var(--accent);
}

.sub-match-dot.good {
  background: var(--info);
}

.sub-match-dot.works {
  background: var(--warning);
}

.sub-match-label {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Substitution result cards */
.sub-result {
  display: flex;
  flex-direction: column;
  padding: var(--space-5);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--bg-secondary);
  margin-bottom: var(--space-3);
  animation: subResultIn 0.25s ease-out both;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.sub-result:last-child {
  margin-bottom: 0;
}

.sub-result-main {
  margin-bottom: var(--space-2);
}

.sub-result-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

@media (max-width: 480px) {
  .sub-result-head {
    flex-direction: column;
    gap: var(--space-1);
  }
}

.sub-result-name {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--text-primary);
}

.sub-best-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  padding: 2px var(--space-3);
  margin-left: var(--space-2);
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--bg-primary);
  vertical-align: middle;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.sub-confidence {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  white-space: nowrap;
}

.sub-confidence-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.sub-confidence-dot.excellent { background: #10b981; }
.sub-confidence-dot.good { background: var(--info); }
.sub-confidence-dot.works { background: #f59e0b; }
.sub-confidence-dot.info { background: var(--accent); }

.sub-ratio {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--accent);
  margin-bottom: var(--space-2);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.sub-ratio-scaled {
  color: var(--accent);
}

.sub-ratio-base {
  color: var(--text-muted);
  font-weight: 400;
  font-size: var(--font-size-xs);
}

.sub-note {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.55;
  margin: 0;
}

/* Detail grid */
.sub-details {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  padding: var(--space-4);
  margin-top: var(--space-4);
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
}

@media (max-width: 640px) {
  .sub-details {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }
}

.sub-detail {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  line-height: 1.5;
}

.sub-detail-label {
  display: block;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 2px;
  font-size: 10px;
}

/* Best for tags */
.sub-bestfor {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  margin-top: var(--space-3);
}

.sub-bestfor-label {
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--text-muted);
  margin-right: var(--space-1);
}

.sub-bestfor-item {
  font-size: 11px;
  padding: 2px var(--space-3);
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

/* Adjustment tip */
.sub-adjustment {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  margin-top: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: rgba(96,165,250,0.08);
  border-left: 3px solid var(--info);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.sub-adjustment strong {
  color: var(--info);
}

/* Diet tags */
.sub-diet-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-top: var(--space-3);
}

.sub-diet-tag {
  font-size: 11px;
  padding: 2px var(--space-3);
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

/* Best result highlight */
.sub-result-best {
  border-color: var(--accent);
  background: var(--accent-dim);
  box-shadow: 0 0 0 1px var(--accent-border);
}

.sub-result-best .sub-result-name {
  color: var(--accent);
}

/* Multi-mode panel */
.sub-multi-list {
  margin-top: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.sub-multi-empty {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  font-style: italic;
}

.sub-multi-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-4);
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
}

.sub-multi-item strong {
  flex: 1;
  color: var(--text-primary);
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sub-multi-item span {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 200px;
}

.sub-multi-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  padding: 0;
  border-radius: 50%;
  flex-shrink: 0;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.sub-multi-remove:hover {
  color: var(--error);
  background: var(--error-dim);
}

@media (max-width: 768px) {
  .sub-controls-row {
    flex-direction: column;
    align-items: flex-start;
  }
  .sub-converter-hint a {
    margin-left: 0;
  }
}

@media (max-width: 480px) {
  .sub-item-grid {
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  }
  .sub-multi-item span {
    display: none;
  }
}

@keyframes subResultIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.sub-result:nth-child(2) { animation-delay: 0.03s; }
.sub-result:nth-child(3) { animation-delay: 0.06s; }
.sub-result:nth-child(4) { animation-delay: 0.09s; }
.sub-result:nth-child(5) { animation-delay: 0.12s; }
.sub-result:nth-child(6) { animation-delay: 0.15s; }
.sub-result:nth-child(7) { animation-delay: 0.18s; }
.sub-result:nth-child(8) { animation-delay: 0.21s; }
.sub-result:nth-child(9) { animation-delay: 0.24s; }
.sub-result:nth-child(10) { animation-delay: 0.27s; }
.sub-result:nth-child(11) { animation-delay: 0.30s; }
.sub-result:nth-child(12) { animation-delay: 0.33s; }

/* ═══════════════════════════════════════════
   Flavor Pairing
   ═══════════════════════════════════════════ */

.flavor-input-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.flavor-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-4);
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  color: var(--accent-text);
  font-weight: 500;
}

.flavor-tag-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border: none;
  background: transparent;
  color: var(--accent-text);
  cursor: pointer;
  font-size: var(--font-size-sm);
  padding: 0;
  border-radius: 50%;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.flavor-tag-remove:hover {
  color: var(--error);
  background: var(--error-dim);
}

.flavor-pairing-group {
  margin-bottom: var(--space-6);
}

.flavor-pairing-group:last-child {
  margin-bottom: 0;
}

.flavor-pairing-group h3 {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--border);
}

.flavor-pairing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space-3);
}

.flavor-pairing-item {
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-primary);
  animation: flavorItemIn 0.3s ease-out both;
  transition: border-color var(--transition-fast);
}

.flavor-pairing-item:hover {
  border-color: var(--border-strong);
}

.flavor-pairing-item h4 {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.flavor-pairing-item p {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

.flavor-pairing-item:nth-child(2) { animation-delay: 0.03s; }
.flavor-pairing-item:nth-child(3) { animation-delay: 0.06s; }
.flavor-pairing-item:nth-child(4) { animation-delay: 0.09s; }
.flavor-pairing-item:nth-child(5) { animation-delay: 0.12s; }
.flavor-pairing-item:nth-child(6) { animation-delay: 0.15s; }
.flavor-pairing-item:nth-child(7) { animation-delay: 0.18s; }
.flavor-pairing-item:nth-child(8) { animation-delay: 0.21s; }
.flavor-pairing-item:nth-child(9) { animation-delay: 0.24s; }
.flavor-pairing-item:nth-child(10) { animation-delay: 0.27s; }

@keyframes flavorItemIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Flavor pairing strength indicators ── */
.flavor-strength {
  display: flex;
  gap: 3px;
  margin-bottom: var(--space-2);
}

.flavor-strength-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.flavor-strength-dot.filled {
  background: var(--accent);
  border-color: var(--accent-border);
}

.flavor-strength-dot.filled.good-dot {
  background: var(--info);
  border-color: rgba(96, 165, 250, 0.3);
}

.flavor-strength-dot.filled.works-dot {
  background: var(--warning);
  border-color: rgba(251, 191, 36, 0.3);
}

/* ── Cuisine filter bar ── */
.cuisine-filters {
  display: none;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-5);
  margin-bottom: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--bg-secondary);
}

.cuisine-filters.is-visible {
  display: flex;
}

.cuisine-filter-label {
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-right: var(--space-1);
}

.cuisine-filter-chip {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-family: inherit;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 150ms ease;
  white-space: nowrap;
}

.cuisine-filter-chip:hover {
  color: var(--text-primary);
  background: var(--accent-dim);
  border-color: var(--accent-border);
}

.cuisine-filter-chip.is-active {
  color: var(--bg-primary);
  background: var(--accent);
  border-color: var(--accent);
  font-weight: 600;
}

/* ── Flavor pairing groups by category ── */
.flavor-group-header {
  margin-bottom: var(--space-3);
}

.flavor-group-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  font-size: var(--font-size-xs);
  font-weight: 700;
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
  color: var(--text-muted);
  margin-left: var(--space-1);
  vertical-align: middle;
}

.flavor-group-desc {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  margin: 0;
  margin-top: 2px;
}

/* Category-specific header colors */
.flavor-pairing-group.cat-complementary h3 { color: var(--accent-text); }
.flavor-pairing-group.cat-contrasting h3 { color: var(--info); }
.flavor-pairing-group.cat-regional h3 { color: var(--success); }
.flavor-pairing-group.cat-bold h3 { color: var(--warning); }

/* Empty state when filter yields no results */
.flavor-empty-filtered {
  padding: var(--space-8);
  text-align: center;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-xl);
  background: var(--bg-secondary);
}

.link-btn {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  padding: 0;
  text-decoration: underline;
  font-weight: 600;
}

.link-btn:hover { color: var(--accent-hover); }

/* ── Enhanced pairing item ── */
.flavor-item-top {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-1);
}

.flavor-item-top h4 {
  flex: 1;
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.flavor-cat-badge {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 2px 7px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  flex-shrink: 0;
}

.flavor-cat-badge.cat-complementary { background: var(--accent-dim); color: var(--accent-text); }
.flavor-cat-badge.cat-contrasting { background: rgba(96, 165, 250, 0.14); color: var(--info); }
.flavor-cat-badge.cat-regional { background: var(--success-dim); color: var(--success); }
.flavor-cat-badge.cat-bold { background: var(--warning-dim); color: var(--warning); }

/* "Why it pairs" reasoning */
.flavor-why {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  margin: 0 0 var(--space-1);
  line-height: 1.5;
}

.flavor-why-label {
  font-weight: 700;
  color: var(--text-secondary);
}

.flavor-note {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.55;
  margin: 0;
}

/* Multi-ingredient notes */
.flavor-notes-list {
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.flavor-note-item {
  display: flex;
  gap: var(--space-2);
  font-size: var(--font-size-xs);
  line-height: 1.45;
}

.flavor-note-source {
  font-weight: 700;
  color: var(--text-primary);
  flex-shrink: 0;
  text-transform: capitalize;
}

.flavor-note-source::after {
  content: ':';
  margin-right: 2px;
}

.flavor-note-text {
  color: var(--text-secondary);
}

/* Cuisine context tags on items */
.flavor-cuisine-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: var(--space-2);
}

.flavor-cuisine-tag {
  font-size: 10px;
  font-weight: 500;
  padding: 1px 6px;
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
  color: var(--text-muted);
  text-transform: capitalize;
  border: 1px solid var(--border);
}

/* ── Generate Recipe CTA ── */
.flavor-gen-recipe-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-top: var(--space-6);
  padding: var(--space-6);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--accent-dim), rgba(249, 115, 22, 0.04));
}

.flavor-gen-info {
  flex: 1;
}

.flavor-gen-info strong {
  display: block;
  font-size: var(--font-size-base);
  color: var(--text-primary);
  margin-bottom: var(--space-1);
  font-weight: 700;
}

.flavor-gen-info p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

.flavor-gen-recipe-cta .btn {
  flex-shrink: 0;
}

@media (max-width: 500px) {
  .flavor-gen-recipe-cta {
    flex-direction: column;
    align-items: stretch;
  }
}

/* ── Ingredient limit note ── */
.ingredient-limit-note {
  margin-top: var(--space-3);
  font-size: var(--font-size-xs);
  color: var(--accent-text);
  padding: var(--space-2) var(--space-4);
  background: var(--accent-dim);
  border-radius: var(--radius-lg);
  border: 1px solid var(--accent-border);
  font-weight: 500;
}

/* ═══════════════════════════════════════════
   Converter Tool
   ═══════════════════════════════════════════ */

.tool-page .tool-input-area .converter-categories {
  display: flex;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
  padding: var(--space-1);
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  width: fit-content;
}

.converter-cat-btn {
  padding: var(--space-2) var(--space-4);
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: inherit;
}

.converter-cat-btn:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.converter-cat-btn.is-active {
  color: var(--bg-primary);
  background: var(--accent);
  font-weight: 600;
}

.converter-panel {
  display: none;
  padding: var(--space-5);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--bg-primary);
  margin-bottom: var(--space-4);
}

.converter-panel.is-active {
  display: block;
}

.converter-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-3);
  align-items: center;
  margin-bottom: var(--space-3);
}

.converter-input-group label {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  margin-bottom: var(--space-1);
  display: block;
}

.converter-input-group input,
.converter-input-group select {
  width: 100%;
  margin-bottom: 0;
}

.converter-swap {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  color: var(--text-muted);
  cursor: pointer;
  font-size: var(--font-size-lg);
  padding: 0;
  margin-top: 18px;
  transition: border-color var(--transition-fast), color var(--transition-fast);
  line-height: 1;
}

.converter-swap:hover {
  border-color: var(--accent-border);
  color: var(--accent);
}

.converter-result {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-5);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  margin-bottom: var(--space-3);
}

.converter-result-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}

.converter-result-label {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  text-align: right;
  white-space: nowrap;
}

.converter-quick-ref {
  padding: var(--space-5);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--bg-primary);
}

.converter-quick-ref + .converter-quick-ref {
  margin-top: var(--space-4);
}

.converter-quick-ref-title {
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--border);
}

.converter-quick-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-2);
}

.converter-quick-item {
  display: flex;
  justify-content: space-between;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

.converter-quick-item span:last-child {
  color: var(--text-primary);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

/* ── Conv tab panels ── */
.conv-ing-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.conv-ing-meta {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  margin-top: var(--space-2);
  line-height: 1.5;
}

.conv-ing-equivalent {
  font-size: var(--font-size-xs);
  color: var(--accent-text);
  font-weight: 600;
}

/* ── Batch results ── */
.conv-batch-results {
  margin-top: var(--space-3);
}

.conv-batch-table {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.conv-batch-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-secondary);
}

.conv-batch-line {
  color: var(--text-primary);
}

.conv-batch-ing {
  color: var(--text-muted);
  font-size: var(--font-size-xs);
  text-transform: lowercase;
}

.conv-batch-res {
  color: var(--accent-text);
  font-weight: 700;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.conv-batch-row.err {
  border-color: rgba(248,113,113,0.3);
  background: var(--error-dim);
}

.conv-batch-row.err .conv-batch-msg {
  color: var(--error);
  font-size: var(--font-size-xs);
}

.conv-batch-summary {
  padding: var(--space-2) var(--space-4);
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  color: var(--accent-text);
  margin-top: var(--space-2);
  font-weight: 600;
}

@media (max-width: 480px) {
  .conv-batch-row {
    grid-template-columns: 1fr;
    gap: 2px;
  }
  .conv-batch-res {
    text-align: left;
  }
}

/* ═══════════════════════════════════════════
   Responsive
   ═══════════════════════════════════════════ */

/* ── Dietary filter chips ── */
.dietary-filter {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
  font-family: inherit;
}

.dietary-filter:hover {
  border-color: var(--border-strong);
  color: var(--text-primary);
}

.dietary-filter.is-active {
  border-color: var(--accent-border);
  color: var(--accent);
  background: var(--accent-dim);
}

@media (max-width: 768px) {
  .tools-title {
    font-size: var(--font-size-3xl);
  }
  .tool-header h1 {
    font-size: var(--font-size-2xl);
  }
  .flavor-pairing-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  }
  .converter-row {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }
  .converter-swap {
    margin-top: 0;
    align-self: center;
  }
}

@media (max-width: 480px) {
  .tools-index {
    padding: var(--space-8) 0 var(--space-10);
  }
  .tool-page {
    padding: var(--space-5) 0 var(--space-10);
  }
  .tool-input-area {
    padding: var(--space-5);
  }
  .flavor-pairing-grid {
    grid-template-columns: 1fr;
  }
  .cuisine-filters {
    padding: var(--space-4);
  }
}

/* ═══════════════════════════════════════════
   Recipe Scaler
   ═══════════════════════════════════════════ */

.scaler-tabs {
  display: flex;
  gap: var(--space-1);
  margin-bottom: var(--space-5);
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: var(--space-1);
}

.scaler-tab {
  padding: var(--space-2) var(--space-4);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: var(--transition-fast);
}

.scaler-tab:hover {
  color: var(--text-primary);
  background: var(--surface-hover);
}

.scaler-tab.is-active {
  color: var(--accent-text);
  background: var(--accent-bg);
}

.scaler-tab-panel {
  display: none;
}

.scaler-tab-panel.is-active {
  display: block;
}

.scaler-scale-row {
  display: flex;
  gap: var(--space-4);
  align-items: flex-end;
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}

.scaler-scale-row > div {
  flex: 1;
  min-width: 140px;
}

.scaler-scale-row label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--space-1);
  color: var(--text-secondary);
}

.scaler-scale-row input {
  width: 100%;
  margin-bottom: 0;
}

.scaler-arrow {
  display: flex;
  align-items: center;
  padding-bottom: var(--space-2);
  color: var(--text-muted);
  font-size: var(--font-size-lg);
  flex-shrink: 0;
}

.scaler-multiplier-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  background: var(--surface-raised);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.scaler-multiplier-label {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-caps);
}

.scaler-multiplier-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--accent-text);
  line-height: 1;
}

.scaler-options {
  margin-top: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.scaler-checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-size: var(--font-size-sm);
  margin-bottom: 0;
}

.scaler-checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

.scaler-pan-grid {
  display: flex;
  gap: var(--space-4);
  align-items: flex-end;
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}

.scaler-pan-grid > div {
  flex: 1;
  min-width: 180px;
}

.scaler-pan-grid select {
  width: 100%;
  margin-bottom: 0;
}

.scaler-pan-result {
  padding: var(--space-5);
  background: var(--surface-raised);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
}

.scaler-pan-multiplier {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--accent-text);
  margin-bottom: var(--space-2);
}

.scaler-pan-note {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: 0;
}

.scaler-pan-tip {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  font-style: italic;
  margin-bottom: 0;
}

.scaler-results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-3);
}

.scaler-results-header h2 {
  margin-bottom: 0;
  font-size: var(--font-size-lg);
}

.scaler-output {
  padding: var(--space-5);
  background: var(--surface-raised);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-family: var(--font-code);
  font-size: var(--font-size-base);
  white-space: pre-wrap;
  line-height: 1.7;
  max-height: 400px;
  overflow-y: auto;
}

.scaler-note {
  margin-top: var(--space-3);
}

.scaler-note-item {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-1);
}

@media (max-width: 600px) {
  .scaler-scale-row {
    flex-direction: column;
    gap: var(--space-3);
  }
  .scaler-arrow {
    display: none;
  }
  .scaler-multiplier-display {
    align-self: flex-start;
  }
  .scaler-pan-grid {
    flex-direction: column;
  }
}