/**
 * Multiple Regression with Interactions & Non-Linear Effects
 * Custom styling
 */

/* Interaction type selector */
.interaction-type-selector {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 1.5rem 0;
}

.radio-option {
  display: flex;
  align-items: center;
  padding: 0.75rem 1rem;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.radio-option:hover {
  border-color: #4a90e2;
  background-color: #f8f9fa;
}

.radio-option input[type="radio"] {
  margin-right: 0.75rem;
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.radio-option input[type="radio"]:checked + span {
  font-weight: 600;
  color: #2c5aa0;
}

.radio-option span {
  flex: 1;
  font-size: 1rem;
}

/* Interaction variable selectors */
.interaction-var-selectors {
  margin-top: 1.5rem;
  padding: 1.5rem;
  background-color: #f8f9fa;
  border-radius: 8px;
  border-left: 4px solid #4a90e2;
}

.var-selector-group {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.var-selector-group h4 {
  margin: 0 0 1rem 0;
  color: #2c5aa0;
  font-size: 1.1rem;
}

.selector-row {
  display: grid;
  grid-template-columns: 150px 1fr;
  align-items: center;
  gap: 1rem;
}

.selector-row label {
  font-weight: 500;
  text-align: right;
}

.selector-row select {
  padding: 0.5rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 1rem;
}

.var-selector-group button.secondary {
  margin-top: 0.5rem;
  align-self: flex-start;
  padding: 0.5rem 1rem;
  background-color: #fff;
  border: 1px solid #4a90e2;
  color: #4a90e2;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.var-selector-group button.secondary:hover {
  background-color: #4a90e2;
  color: #fff;
}

.helper-text {
  font-size: 0.9rem;
  color: #666;
  font-style: italic;
  margin-top: 0.5rem;
}

/* Switch option for checkboxes */
.switch-option {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
}

.switch-option input[type="checkbox"] {
  margin-right: 0.75rem;
  width: 20px;
  height: 20px;
  cursor: pointer;
}

.switch-option span {
  font-size: 1rem;
  font-weight: 500;
}

/* Advanced settings */
.advanced-settings {
  margin-top: 1rem;
}

.advanced-settings summary {
  font-weight: 600;
  cursor: pointer;
  padding: 0.75rem;
  background-color: #f0f0f0;
  border-radius: 4px;
  transition: background-color 0.2s ease;
}

.advanced-settings summary:hover {
  background-color: #e0e0e0;
}

.advanced-settings-content {
  margin-top: 1rem;
  padding: 1rem;
  border-left: 3px solid #4a90e2;
}

/* Regression equation styling */
.regression-equation-text {
  font-family: 'Courier New', monospace;
  font-size: 1.05rem;
  background-color: #f8f9fa;
  padding: 1.5rem;
  border-radius: 8px;
  border-left: 4px solid #4a90e2;
  overflow-x: auto;
  white-space: pre-wrap;
  word-wrap: break-word;
}

/* Interaction plot card */
#interaction-plot-card {
  margin-top: 2rem;
  border-top: 3px solid #4a90e2;
  padding-top: 2rem;
}

/* Chart placeholder */
.chart-placeholder {
  min-height: 400px;
  width: 100%;
}

/* Interpretation aid styling */
.interpretation-aid {
  margin-top: 1rem;
  padding: 0.5rem;
  border-radius: 4px;
  background-color: #fff9e6;
}

.interpretation-aid summary {
  font-weight: 600;
  cursor: pointer;
  color: #856404;
  padding: 0.5rem;
}

.interpretation-aid .muted {
  margin-top: 0.75rem;
  padding: 0.75rem;
  line-height: 1.6;
}

/* Coefficient interpretation guide */
#coef-interpretation {
  padding: 1rem;
}

#coef-interpretation ul {
  margin-left: 1.5rem;
  line-height: 1.8;
}

/* Summary statistics grid */
.summary-stats-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 1024px) {
  .summary-stats-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.summary-stats-grid h4 {
  margin-bottom: 1rem;
  color: #2c5aa0;
}

/* Summary table */
.summary-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.summary-table th {
  background-color: #f0f0f0;
  padding: 0.75rem;
  text-align: left;
  font-weight: 600;
  border-bottom: 2px solid #ddd;
}

.summary-table td {
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid #eee;
}

.summary-table tbody tr:hover {
  background-color: #f8f9fa;
}

/* Diagnostics section */
.diagnostics-details {
  margin-top: 1rem;
}

.diagnostics-details summary {
  font-weight: 600;
  cursor: pointer;
  padding: 0.75rem;
  background-color: #f0f0f0;
  border-radius: 4px;
  transition: background-color 0.2s ease;
}

.diagnostics-details summary:hover {
  background-color: #e0e0e0;
}

#diagnostics-content {
  margin-top: 1rem;
  padding: 1rem;
}

.diagnostic-block {
  margin-bottom: 2rem;
}

.diagnostic-block h4 {
  color: #2c5aa0;
  margin-bottom: 0.75rem;
}

.diagnostic-block ul {
  list-style-type: disc;
  margin-left: 1.5rem;
  line-height: 1.8;
}

/* Dual panels for APA and Managerial reports */
.dual-panels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

@media (min-width: 1024px) {
  .dual-panels {
    grid-template-columns: 1fr 1fr;
  }
}

.dual-panel {
  padding: 1.5rem;
}

.dual-panel h3 {
  margin-bottom: 1rem;
  color: #2c5aa0;
  border-bottom: 2px solid #4a90e2;
  padding-bottom: 0.5rem;
}

/* Scenario controls */
.scenario-controls {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.scenario-controls__input {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.scenario-controls select {
  flex: 1;
  padding: 0.75rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 1rem;
}

#scenario-description {
  margin-top: 1.5rem;
  padding: 1rem;
  background-color: #f8f9fa;
  border-radius: 8px;
  line-height: 1.6;
}

/* Metrics panel */
.metrics-panel {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  padding: 1.5rem;
}

.metric-output {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem;
  background-color: #f8f9fa;
  border-radius: 6px;
  border-left: 4px solid #4a90e2;
}

.metric-output span:first-child {
  font-weight: 600;
  color: #555;
}

.dynamic-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: #2c5aa0;
}

/* Additional notes/details styling */
.additional-notes {
  margin-top: 1rem;
  border-left: 4px solid #4a90e2;
  padding-left: 1rem;
}

.additional-notes summary {
  font-weight: 600;
  cursor: pointer;
  color: #2c5aa0;
  padding: 0.5rem 0;
}

.additional-content {
  margin-top: 0.75rem;
  line-height: 1.7;
}

.additional-content h4 {
  margin-top: 1rem;
  color: #2c5aa0;
}

.additional-content ul {
  margin-left: 1.5rem;
  line-height: 1.8;
}

/* Hero header enhancements */
.hero-context {
  margin-top: 0.5rem;
}

/* Utility classes */
.hidden {
  display: none !important;
}

.muted {
  color: #666;
  font-size: 0.95rem;
}

/* Equation styling */
.equation {
  background-color: #f8f9fa;
  padding: 1rem 1.5rem;
  border-radius: 6px;
  margin: 1rem 0;
  border-left: 4px solid #4a90e2;
}

.equation strong {
  color: #2c5aa0;
  display: block;
  margin-bottom: 0.5rem;
}

/* Panel intro text */
.panel-intro {
  margin-bottom: 1rem;
  line-height: 1.6;
  color: #555;
}

.upload-status {
  margin-top: 1rem;
  font-style: italic;
  color: #666;
}

/* Variable selection panel */
.variable-selectors-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 2rem;
  margin-top: 1rem;
}

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

.variable-column label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: #2c5aa0;
}

.variable-column select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 1rem;
}

.predictor-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

#assignment-summary {
  margin-top: 1.5rem;
  padding: 1rem;
  background-color: #e8f4f8;
  border-radius: 6px;
}

/* Chart note */
.chart-note {
  margin-top: 1rem;
  font-style: italic;
  color: #666;
  font-size: 0.9rem;
}

/* Template download */
.template-download {
  margin-top: 1.5rem;
  text-align: center;
}

.template-download button {
  padding: 0.75rem 1.5rem;
  background-color: #4a90e2;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  transition: background-color 0.2s ease;
}

.template-download button:hover {
  background-color: #357abd;
}

/* Footer styling */
.app-footer {
  margin-top: 4rem;
  padding: 2rem 1rem;
  background-color: #f8f9fa;
  border-top: 1px solid #e0e0e0;
  text-align: center;
}

.page-timestamps {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 0.5rem;
}

.citation {
  font-size: 0.85rem;
  color: #555;
  font-style: italic;
  margin-top: 1rem;
}