/* Mortgage Payment Calculator Specific Styles */

:root {
  --primary-blue: #2563eb;
  --primary-blue-hover: #1d4ed8;
  --success-green: #10b981;
  --warning-red: #dc2626;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --border: #e5e7eb;
  --bg-light: #f9fafb;
  --bg-card: #ffffff;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
}

/* Section Headers */
.section-header {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: var(--space-lg) 0 var(--space-md) 0;
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--primary-blue);
}

/* Input Row for Side-by-Side Inputs */
.input-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

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

/* Dual Input Row (Down Payment Dollar + Percent) */
.dual-input-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.dual-input-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.dual-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin: 0;
}

.dual-input-field input {
  width: 100%;
}

/* Mobile: Stack dual inputs vertically */
@media (max-width: 640px) {
  .dual-input-row {
    grid-template-columns: 1fr;
  }
}

/* Input Hints */
.input-hint {
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-style: italic;
}

/* PMI Visibility Section */
.pmi-visibility-section {
  margin: var(--space-lg) 0;
}

/* PMI Collapsible Details */
.pmi-collapsible {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.pmi-summary {
  background: var(--bg-light);
  padding: var(--space-md) var(--space-lg);
  cursor: pointer;
  list-style: none;
  user-select: none;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 600;
  color: var(--text-primary);
  transition: background 0.2s;
}

.pmi-summary::-webkit-details-marker {
  display: none;
}

.pmi-summary:hover {
  background: #f3f4f6;
}

.pmi-summary-icon {
  font-size: 1.25rem;
  line-height: 1;
}

.pmi-summary-text {
  font-size: 1rem;
  flex: 1;
}

/* Rotate arrow when open */
.pmi-collapsible[open] .pmi-summary {
  border-bottom: 1px solid var(--border);
}

.pmi-content {
  padding: var(--space-lg);
}

.pmi-alert {
  border-radius: 12px;
  padding: var(--space-lg);
  border-left: 4px solid;
}

.pmi-alert.pmi-warning {
  background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
  border-left-color: #dc2626;
}

.pmi-alert.pmi-success {
  background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
  border-left-color: #10b981;
}

.pmi-alert-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.pmi-icon {
  font-size: 1.5rem;
  line-height: 1;
}

.pmi-alert h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.pmi-message {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin: 0 0 var(--space-md) 0;
  line-height: 1.6;
}

.pmi-breakdown {
  margin: var(--space-lg) 0;
}

.pmi-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

@media (max-width: 640px) {
  .pmi-stats-grid {
    grid-template-columns: 1fr;
  }
}

.pmi-stat {
  background: white;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: var(--space-md);
  text-align: center;
}

.pmi-stat-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xs);
}

.pmi-stat-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--warning-red);
}

.pmi-helper-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-style: italic;
  margin: 0;
  text-align: center;
}

.pmi-what-if {
  background: linear-gradient(135deg, #fefce8 0%, #fef3c7 100%);
  border: 2px solid #fbbf24;
  border-radius: 8px;
  padding: var(--space-md);
  margin: var(--space-md) 0;
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
}

.pmi-what-if-icon {
  font-size: 1.25rem;
  line-height: 1;
  flex-shrink: 0;
}

.pmi-what-if p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--text-primary);
  font-weight: 500;
  line-height: 1.5;
}

.pmi-details {
  margin-top: var(--space-lg);
  border-top: 1px solid var(--border);
  padding-top: var(--space-md);
}

.pmi-details summary {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--primary-blue);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.pmi-details summary::-webkit-details-marker {
  display: none;
}

.pmi-details summary:before {
  content: "▸ ";
  display: inline-block;
  margin-right: 0.5rem;
  transition: transform 0.2s;
}

.pmi-details[open] summary:before {
  transform: rotate(90deg);
}

.pmi-details summary:hover {
  color: var(--primary-blue-hover);
}

.pmi-details-content {
  margin-top: var(--space-md);
  padding-left: var(--space-lg);
}

.pmi-details-content p {
  margin: var(--space-sm) 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.pmi-details-content strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* Total Cost Visualization Section */
.total-cost-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-md);
}

.total-cost-header {
  margin-bottom: var(--space-lg);
}

.total-cost-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 var(--space-sm) 0;
}

.total-cost-subtitle {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.6;
}

.total-cost-bar {
  display: flex;
  height: 80px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-lg);
  position: relative;
}

.cost-segment {
  display: flex;
  align-items: center;
  justify-content: center;
  transition: width 0.6s ease;
  position: relative;
  min-width: 0;
}

.cost-segment .segment-label {
  font-size: 0.875rem;
  font-weight: 700;
  color: white;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  padding: 0 var(--space-sm);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cost-principal {
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
}

.cost-interest {
  background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
}

.cost-pmi {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.cost-other {
  background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
}

.cost-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
  justify-content: center;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.legend-color {
  width: 16px;
  height: 16px;
  border-radius: 4px;
  flex-shrink: 0;
}

.legend-principal {
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
}

.legend-interest {
  background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
}

.legend-pmi {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.legend-other {
  background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
}

.legend-text {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.total-cost-insight {
  background: linear-gradient(135deg, #fefce8 0%, #fef3c7 100%);
  border: 2px solid #fbbf24;
  border-radius: 8px;
  padding: var(--space-md);
  margin: 0;
  font-size: 0.9375rem;
  color: var(--text-primary);
  font-weight: 500;
  line-height: 1.5;
  text-align: center;
}

@media (max-width: 640px) {
  .total-cost-bar {
    height: 60px;
  }

  .cost-segment .segment-label {
    font-size: 0.75rem;
  }

  .cost-legend {
    gap: var(--space-md);
  }
}

/* Advanced Options Section */
.advanced-section {
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
}

.advanced-toggle {
  background: var(--bg-light);
  border: 1px solid var(--border);
  color: var(--primary-blue);
  font-weight: 600;
  cursor: pointer;
  padding: var(--space-md);
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.2s;
  border-radius: 8px;
  width: 100%;
}

.advanced-toggle:hover {
  color: var(--primary-blue-hover);
  background: #dbeafe;
  border-color: var(--primary-blue);
}

.advanced-toggle:focus {
  outline: 2px solid var(--primary-blue);
  outline-offset: 2px;
  border-radius: 4px;
}

#advancedCaret,
#amortizationCaret {
  font-size: 0.875rem;
  display: inline-block;
  transition: transform 0.2s;
}

.advanced-options {
  margin-top: var(--space-md);
  padding: var(--space-md);
  background: var(--bg-light);
  border-radius: 8px;
  border: 1px solid var(--border);
}

/* Results Grid */
.results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

@media (max-width: 968px) {
  .results-grid {
    grid-template-columns: 1fr;
  }
}

/* Result Cards */
.result-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
}

.result-card h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 var(--space-lg) 0;
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--border);
}

/* Primary Card (Monthly Payment) */
.primary-card {
  border-top: 4px solid var(--primary-blue);
}

.result-primary {
  text-align: center;
  padding: var(--space-lg) 0;
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border-radius: 8px;
  margin-bottom: var(--space-lg);
}

.result-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
}

.result-value-large {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-blue);
  line-height: 1;
}

@media (max-width: 480px) {
  .result-value-large {
    font-size: 2rem;
  }
}

/* Breakdown Section */
.breakdown-section {
  background: var(--bg-light);
  border-radius: 8px;
  padding: var(--space-md);
}

.breakdown-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
}

.breakdown-items {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.breakdown-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm);
  background: white;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.breakdown-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.breakdown-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Cost Card (Total Cost Awareness) */
.cost-card {
  border-top: 4px solid var(--warning-red);
}

.cost-metrics {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.cost-metric {
  padding: var(--space-md);
  background: var(--bg-light);
  border-radius: 8px;
  border: 1px solid var(--border);
}

.cost-metric.highlight {
  background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
  border-color: var(--warning-red);
}

.metric-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
}

.metric-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.metric-value.warning {
  color: var(--warning-red);
}

.metric-hint {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-style: italic;
}

/* Cost Comparison Bar */
.cost-comparison {
  margin-top: var(--space-sm);
}

.comparison-bar {
  display: flex;
  height: 2rem;
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: var(--space-sm);
  box-shadow: var(--shadow-sm);
}

.bar-principal {
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: 0.875rem;
  transition: width 0.3s ease;
}

.bar-interest {
  background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: 0.875rem;
  transition: width 0.3s ease;
}

.comparison-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  gap: var(--space-md);
}

.label-principal {
  color: var(--primary-blue);
}

.label-interest {
  color: var(--warning-red);
}

/* Insights Section */
.insights-section {
  background: linear-gradient(135deg, #fefce8 0%, #fef3c7 100%);
  border: 2px solid #fbbf24;
  border-radius: 12px;
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.insights-section h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 var(--space-lg) 0;
}

.insights-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.insight-card {
  background: white;
  border: 1px solid #fbbf24;
  border-radius: 8px;
  padding: var(--space-md);
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
}

.insight-icon {
  font-size: 2rem;
  line-height: 1;
  flex-shrink: 0;
}

.insight-content {
  flex: 1;
}

.insight-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.insight-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Chart Section */
.chart-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-md);
}

.chart-section h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 var(--space-lg) 0;
}

#paymentChart {
  max-height: 400px;
}

/* Amortization Section */
.amortization-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
}

.amortization-toggle {
  background: var(--bg-light);
  border: 1px solid var(--border);
  color: var(--primary-blue);
  font-weight: 600;
  cursor: pointer;
  padding: var(--space-md);
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.2s;
  width: 100%;
  text-align: left;
  border-radius: 8px;
}

.amortization-toggle:hover {
  color: var(--primary-blue-hover);
  background: #dbeafe;
  border-color: var(--primary-blue);
}

.amortization-toggle:focus {
  outline: 2px solid var(--primary-blue);
  outline-offset: 2px;
  border-radius: 4px;
}

.amortization-table {
  margin-top: var(--space-md);
  overflow-x: auto;
}

.amortization-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.amortization-table th {
  background: var(--bg-light);
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
}

.amortization-table td {
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

.amortization-table tbody tr:hover {
  background: var(--bg-light);
}

/* Content Section */
.content-section {
  max-width: 800px;
  margin: var(--space-xl) auto;
  padding: var(--space-xl);
  background: var(--bg-card);
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}

.content-section h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 var(--space-lg) 0;
}

.content-section h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: var(--space-lg) 0 var(--space-md) 0;
}

.content-section p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

/* Related Section */
.related-section {
  max-width: 1000px;
  margin: var(--space-xl) auto;
  padding: 0 var(--space-md);
}

.related-section h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 var(--space-lg) 0;
  text-align: center;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-md);
}

.related-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: var(--space-lg);
  text-decoration: none;
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
}

.related-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-blue);
}

.related-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--primary-blue);
  margin: 0 0 var(--space-sm) 0;
}

.related-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.5;
}

/* FAQ Section */
.faq-section {
  max-width: 800px;
  margin: var(--space-xl) auto;
  padding: var(--space-xl);
  background: var(--bg-card);
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}

.faq-section h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 var(--space-lg) 0;
  text-align: center;
}

.faq-items {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.faq-item {
  padding: var(--space-md);
  background: var(--bg-light);
  border-radius: 8px;
  border-left: 4px solid var(--primary-blue);
}

.faq-item h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 var(--space-sm) 0;
}

.faq-item p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.faq-item a {
  color: var(--primary-blue);
  text-decoration: underline;
}

.faq-item a:hover {
  color: var(--primary-blue-hover);
}