/* ============================================================
   IntelliTC Solutions — Learn Mode Styles
   ============================================================ */

/* Learn Mode Toggle */
.learn-toggle-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.learn-toggle-label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  user-select: none;
  cursor: pointer;
}
.learn-toggle-label .learn-icon {
  display: inline-block;
  width: 16px;
  height: 16px;
  vertical-align: -3px;
  margin-right: 4px;
}
.learn-toggle {
  position: relative;
  width: 40px;
  height: 22px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--transition-interactive);
  flex-shrink: 0;
}
.learn-toggle::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  background: var(--color-surface);
  border-radius: 50%;
  transition: transform var(--transition-interactive);
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.learn-toggle.active {
  background: var(--color-primary);
}
.learn-toggle.active::after {
  transform: translateX(18px);
}

/* Field Tooltips */
.learn-tooltip {
  display: none;
  margin-top: var(--space-1);
  padding: var(--space-2) var(--space-3);
  background: var(--color-primary-surface);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: var(--text-xs);
  color: var(--color-text);
  line-height: 1.5;
  animation: learnFadeIn 250ms ease-out;
}
.learn-tooltip strong {
  color: var(--color-primary);
  font-weight: 600;
}
.learn-active .learn-tooltip {
  display: block;
}

@keyframes learnFadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Example Scenarios Drawer */
.learn-examples {
  display: none;
  margin-top: var(--space-4);
  margin-bottom: var(--space-4);
  padding: var(--space-5);
  background: var(--color-surface-2);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  animation: learnFadeIn 300ms ease-out;
}
.learn-active .learn-examples {
  display: block;
}
.learn-examples-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.learn-examples-title svg {
  color: var(--color-primary);
  flex-shrink: 0;
}
.learn-example-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-3);
}
.learn-example-card {
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.learn-example-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-surface);
}
.learn-example-card-title {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-1);
  color: var(--color-text);
}
.learn-example-card-desc {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.4;
}

/* Why This Matters Panel */
.learn-why-panel {
  display: none;
  margin-top: var(--space-6);
  padding: var(--space-6);
  background: var(--color-surface-2);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-lg);
  animation: learnFadeIn 300ms ease-out;
}
.learn-active .learn-why-panel.visible {
  display: block;
}
.learn-why-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.learn-why-title svg {
  flex-shrink: 0;
}

.learn-why-section {
  margin-bottom: var(--space-5);
}
.learn-why-section:last-child {
  margin-bottom: 0;
}
.learn-why-section h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.learn-why-section p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}
.learn-why-section ul {
  list-style: none;
  padding: 0;
  margin: var(--space-2) 0 0;
}
.learn-why-section li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding: var(--space-1) 0;
  padding-left: var(--space-5);
  position: relative;
}
.learn-why-section li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 600;
}

/* KPI Explanations */
.learn-kpi-explain {
  display: none;
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.5;
  padding: var(--space-2) var(--space-3);
  background: var(--color-primary-surface);
  border-radius: var(--radius-md);
  animation: learnFadeIn 200ms ease-out;
}
.learn-active .learn-kpi-explain {
  display: block;
}

/* Coupled Calculator Suggestions — Always visible after results */
.learn-coupled {
  display: none;
  margin-top: var(--space-6);
  padding: var(--space-5);
  background: var(--color-surface-2);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  animation: learnFadeIn 300ms ease-out;
}
.learn-coupled.visible {
  display: block;
}
.learn-coupled-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.learn-coupled-title svg {
  color: var(--color-primary);
  flex-shrink: 0;
}
.learn-coupled-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-3);
}
.learn-coupled-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: inherit;
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.learn-coupled-item:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-surface);
}
.learn-coupled-item .coupled-icon {
  width: 32px;
  height: 32px;
  background: var(--color-primary-surface);
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 700;
}
.learn-coupled-item .coupled-info h5 {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: 2px;
}
.learn-coupled-item .coupled-info p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.4;
}

/* Print: hide learn elements */
@media print {
  .learn-toggle-wrap, .learn-tooltip, .learn-examples,
  .learn-why-panel, .learn-kpi-explain, .learn-coupled { display: none !important; }
}