/* ---- Routing result enhancements ---- */

/* Summary banner shown above the route breakdown list */
.route-summary-banner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  align-items: center;
  padding: 0.55rem 0.85rem;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}
.route-summary-ok {
  background: #e6f9ee;
  border-left: 4px solid #22c55e;
  color: #166534;
}
.route-summary-warn {
  background: #fff7ed;
  border-left: 4px solid #f97316;
  color: #7c2d12;
}
.route-summary-banner .rs-routed  { color: #16a34a; }
.route-summary-banner .rs-failed  { color: #dc2626; }
.route-summary-banner .rs-total   { color: inherit; }
.route-summary-banner .rs-field   { opacity: 0.75; font-weight: 400; }

/* Color-coded route entries */
details.route-success > summary { border-left: 4px solid #22c55e; }
details.route-failed  > summary { border-left: 4px solid #ef4444; background: #fff5f5; }

/* Status & mode badges in route summaries */
.route-status-badge {
  display: inline-block;
  padding: 0 0.35em;
  border-radius: 4px;
  font-size: 0.82em;
  font-weight: 700;
  margin: 0 0.2em;
}
details.route-success .route-status-badge { background: #dcfce7; color: #15803d; }
details.route-failed  .route-status-badge { background: #fee2e2; color: #b91c1c; }

.route-mode-badge {
  display: inline-block;
  padding: 0 0.35em;
  border-radius: 4px;
  font-size: 0.78em;
  font-weight: 500;
  background: #f1f5f9;
  color: #475569;
  margin: 0 0.2em;
}

/* Dark-mode adjustments */
body.dark .route-summary-ok  { background: #14532d; color: #86efac; border-left-color: #22c55e; }
body.dark .route-summary-warn { background: #431407; color: #fdba74; border-left-color: #f97316; }
body.dark details.route-failed > summary { background: #3b0000; }
body.dark .route-mode-badge { background: #1e293b; color: #94a3b8; }

/* Empty-state banner for optimalRoute when no data is loaded */
.empty-state-banner {
  text-align: center;
  padding: 2.5rem 1.5rem;
}

.empty-state-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.empty-state-icon {
  width: 3.5rem;
  height: 3.5rem;
  opacity: 0.45;
}

.empty-state-heading {
  margin: 0;
  font-size: 1.25rem;
  color: var(--color-text, #1e293b);
}

.empty-state-description {
  margin: 0;
  color: var(--color-text-muted, #64748b);
  max-width: 38ch;
}

.empty-state-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 0.5rem;
}

/* ---- Optimal Route workflow polish ---- */

.optimal-route-page .page-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: start;
  gap: var(--space-2, 0.5rem);
}

.optimal-route-page .page-header p {
  grid-column: 1 / -1;
  max-width: 64ch;
}

.optimal-route-sidebar header {
  margin-bottom: var(--space-4, 1rem);
}

.optimal-route-sidebar header h2 {
  margin-bottom: var(--space-2, 0.5rem);
  color: #0f172a;
}

.sidebar-note,
.route-preset-description,
.route-context {
  color: var(--color-text-muted, #64748b);
  font-size: var(--font-size-sm, 0.875rem);
  line-height: 1.45;
}

.route-preset-description {
  margin: -0.15rem 0 var(--space-3, 0.75rem);
}

.range-field {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 3.4rem;
  gap: var(--space-2, 0.5rem);
  align-items: center;
  margin-bottom: var(--space-3, 0.75rem);
}

.range-field input {
  width: 100%;
  margin-bottom: 0;
}

.range-field span {
  justify-self: end;
  font-weight: 700;
  color: var(--color-text, #0f172a);
}

.advanced-routing-settings,
.advanced-entry-panel {
  padding: var(--space-2, 0.5rem) 0;
  border-top: 1px solid var(--color-border, #e2e8f0);
  border-bottom: 1px solid var(--color-border, #e2e8f0);
}

.advanced-routing-settings > summary,
.method-panel > summary,
.route-control-panel h3,
.route-visual-header h3 {
  color: #0f172a;
}

.route-context {
  min-height: 2.4rem;
  margin: var(--space-3, 0.75rem) 0;
  padding: var(--space-2, 0.5rem) var(--space-3, 0.75rem);
  border: 1px solid var(--color-border, #e2e8f0);
  border-radius: var(--radius-sm, 6px);
  background: color-mix(in srgb, var(--color-surface-strong, #ffffff) 74%, var(--color-surface, #f8fafc));
}

.optimal-route-page #calculate-route-btn:disabled {
  cursor: not-allowed;
  opacity: 0.62;
  background: color-mix(in srgb, var(--primary-color, #2563eb) 40%, var(--color-surface, #f8fafc));
  border-color: color-mix(in srgb, var(--primary-color, #2563eb) 28%, var(--color-border, #e2e8f0));
  color: color-mix(in srgb, var(--button-text, #ffffff) 72%, var(--color-text, #0f172a));
}

.route-card-heading,
.route-visual-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4, 1rem);
  margin-bottom: var(--space-3, 0.75rem);
}

.route-card-heading h2,
.route-visual-header h3,
.route-action-group h3 {
  margin: 0;
}

.route-card-heading .field-hint,
.route-visual-header .field-hint {
  margin: var(--space-1, 0.25rem) 0 0;
}

.route-readiness-status {
  flex: 0 0 auto;
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--color-border, #e2e8f0);
  border-radius: var(--radius-pill, 999px);
  color: var(--color-text-muted, #64748b);
  font-size: var(--font-size-sm, 0.875rem);
  font-weight: 700;
  white-space: nowrap;
}

.route-readiness-status.is-ready {
  border-color: color-mix(in srgb, var(--success-text, #155724) 38%, var(--color-border, #e2e8f0));
  color: var(--success-text, #155724);
  background: color-mix(in srgb, var(--success-bg, #d4edda) 42%, transparent);
}

.route-readiness-status.is-blocked,
.route-readiness-status.has-warnings {
  border-color: color-mix(in srgb, var(--warning-text, #856404) 42%, var(--color-border, #e2e8f0));
  color: var(--warning-text, #856404);
  background: color-mix(in srgb, var(--warning-bg, #fff3cd) 46%, transparent);
}

.route-readiness-actions {
  margin-top: var(--space-3, 0.75rem);
  color: var(--color-text-muted, #64748b);
  font-size: var(--font-size-sm, 0.875rem);
}

.route-readiness-actions ul,
.route-next-actions ul,
.route-explanation-list {
  margin: var(--space-2, 0.5rem) 0 0;
  padding-left: 1.2rem;
}

.route-kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
  gap: var(--space-2, 0.5rem);
  margin-bottom: var(--space-3, 0.75rem);
}

.route-kpi-card {
  min-width: 0;
  padding: var(--space-3, 0.75rem);
  border: 1px solid var(--color-border, #e2e8f0);
  border-left: 4px solid color-mix(in srgb, var(--primary-color, #2563eb) 58%, var(--color-border, #e2e8f0));
  border-radius: var(--radius-sm, 6px);
  background: var(--color-surface-strong, #ffffff);
}

.route-kpi-card span {
  display: block;
  color: var(--color-text, #0f172a);
  font-size: var(--font-size-lg, 1.125rem);
  font-weight: 800;
  line-height: 1.15;
  overflow-wrap: anywhere;
}

.route-kpi-card strong {
  display: block;
  margin-top: var(--space-1, 0.25rem);
  color: var(--color-text-muted, #64748b);
  font-size: var(--font-size-xs, 0.75rem);
  text-transform: uppercase;
}

.route-kpi-card--success {
  border-left-color: var(--success-text, #155724);
}

.route-kpi-card--warning {
  border-left-color: var(--warning-text, #856404);
}

.route-kpi-card--danger {
  border-left-color: var(--error-text, #721c24);
}

.route-rejection-summary,
.route-next-actions {
  padding: var(--space-3, 0.75rem);
  border: 1px solid var(--color-border, #e2e8f0);
  border-radius: var(--radius-sm, 6px);
  background: color-mix(in srgb, var(--color-surface, #f8fafc) 80%, var(--color-surface-strong, #ffffff));
  color: var(--color-text, #0f172a);
}

.route-next-actions {
  margin-top: var(--space-2, 0.5rem);
}

.route-source-data-panel {
  padding: 0;
  overflow: hidden;
}

.route-source-data-panel > summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.15rem;
  padding: var(--space-4, 1rem);
  cursor: pointer;
  font-weight: 800;
}

.route-source-data-panel > summary small {
  color: var(--color-text-muted, #64748b);
  font-size: var(--font-size-sm, 0.875rem);
  font-weight: 500;
}

.route-source-data-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4, 1rem);
  padding: 0 var(--space-4, 1rem) var(--space-4, 1rem);
}

.route-source-data-grid .route-data-card {
  padding: var(--space-4, 1rem);
  border: 1px solid var(--color-border, #e2e8f0);
  border-radius: var(--radius-sm, 6px);
  background: var(--color-surface-strong, #ffffff);
}

.route-results-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4, 1rem);
  align-items: start;
}

.route-review-sidebar {
  position: static;
  display: grid;
  gap: var(--space-3, 0.75rem);
  min-width: 0;
}

.route-review-sidebar .route-kpi-grid {
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
}

.route-review-sidebar .route-kpi-card {
  padding: var(--space-2, 0.5rem);
}

.route-review-sidebar .route-kpi-card span {
  font-size: var(--font-size-base, 1rem);
}

.route-review-sidebar .route-next-actions,
.route-review-sidebar .route-rejection-summary {
  font-size: var(--font-size-sm, 0.875rem);
}

.route-breakdown-container details,
#route-breakdown-container details {
  border: 1px solid var(--color-border, #e2e8f0);
  border-radius: var(--radius-sm, 6px);
  background: var(--color-surface-strong, #ffffff);
  overflow: hidden;
}

#route-breakdown-container details > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3, 0.75rem);
  padding: var(--space-3, 0.75rem);
}

.route-summary-main {
  min-width: 0;
  overflow-wrap: anywhere;
}

.route-row-actions {
  display: inline-flex;
  flex: 0 0 auto;
  gap: var(--space-1, 0.25rem);
  align-items: center;
  white-space: nowrap;
}

.route-explanation-list {
  padding-bottom: var(--space-3, 0.75rem);
  color: var(--color-text-muted, #64748b);
}

#route-breakdown-container details.is-selected,
.route-list-row.is-selected,
.interactive-row.is-selected {
  outline: 2px solid color-mix(in srgb, var(--primary-color, #2563eb) 70%, transparent);
  outline-offset: -2px;
}

.route-visual-shell {
  margin-top: 0;
  padding: var(--space-3, 0.75rem);
  border: 1px solid var(--color-border, #e2e8f0);
  border-radius: var(--radius-md, 10px);
  background: color-mix(in srgb, var(--color-surface-strong, #ffffff) 92%, var(--color-surface, #f8fafc));
}

.route-plot-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.45rem 0.75rem;
  max-width: 30rem;
  color: var(--color-text-muted, #64748b);
  font-size: var(--font-size-xs, 0.75rem);
  font-weight: 700;
}

.route-plot-legend span {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.legend-line,
.legend-block,
.legend-dot {
  display: inline-block;
  flex: 0 0 auto;
}

.legend-line {
  width: 1.35rem;
  height: 0;
  border-top: 3px solid #2563eb;
}

.legend-line-field {
  border-top-color: #dc2626;
  border-top-style: dashed;
}

.legend-block {
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 2px;
  background: #cbd5e1;
  border: 1px solid #94a3b8;
}

.legend-block-conduit {
  background: #111827;
}

.legend-dot {
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
}

.legend-dot-start {
  background: #16a34a;
}

.legend-dot-end {
  background: #7c3aed;
}

.plot-controls,
.route-action-groups {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2, 0.5rem);
  align-items: center;
}

.plot-controls label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1, 0.25rem);
  margin: 0;
  min-height: 2.35rem;
}

.route-action-groups {
  align-items: stretch;
  margin-top: var(--space-4, 1rem);
}

.route-action-group {
  flex: 1 1 14rem;
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  gap: var(--space-2, 0.5rem);
  padding: var(--space-3, 0.75rem);
  border: 1px solid var(--color-border, #e2e8f0);
  border-radius: var(--radius-sm, 6px);
  background: var(--color-surface-strong, #ffffff);
}

.route-action-group h3 {
  flex: 0 0 100%;
  color: var(--color-text-muted, #64748b);
  font-size: var(--font-size-xs, 0.75rem);
  text-transform: uppercase;
}

.interactive-row {
  cursor: pointer;
}

.interactive-row:hover {
  background: color-mix(in srgb, var(--primary-color, #2563eb) 8%, transparent);
}

.route-delta-positive {
  color: var(--warning-text, #856404);
  font-weight: 700;
}

.route-delta-neutral {
  color: var(--color-text-muted, #64748b);
}

.route-list-caption {
  margin: 0 0 var(--space-3, 0.75rem);
  color: var(--color-text-muted, #64748b);
  font-size: var(--font-size-sm, 0.875rem);
}

#route-breakdown-details.has-alerts > summary {
  color: var(--warning-text, #856404);
}

.route-list-scroll {
  max-height: 34rem;
}

.route-list-table th,
.route-list-table td {
  vertical-align: middle;
}

.route-list-row {
  cursor: pointer;
}

.route-list-row:hover {
  background: color-mix(in srgb, var(--primary-color, #2563eb) 7%, transparent);
}

.route-detail-row > td {
  padding: var(--space-3, 0.75rem);
  background: color-mix(in srgb, var(--color-surface, #f8fafc) 78%, var(--color-surface-strong, #ffffff));
}

.route-segment-table {
  margin-top: var(--space-2, 0.5rem);
}

body.dark-mode .route-kpi-card,
body.dark-mode #route-breakdown-container details,
body.dark-mode .route-action-group,
body.dark-mode .route-visual-shell,
body.dark-mode .route-source-data-grid .route-data-card {
  background: var(--color-surface-strong, #1e293b);
}

body.dark-mode .route-rejection-summary,
body.dark-mode .route-next-actions,
body.dark-mode .route-context {
  background: color-mix(in srgb, var(--color-surface-strong, #1e293b) 86%, var(--color-surface, #0f172a));
}

body.dark-mode .route-detail-row > td {
  background: color-mix(in srgb, var(--color-surface-strong, #1e293b) 88%, var(--color-surface, #0f172a));
}

@media (max-width: 760px) {
  .optimal-route-page .page-header,
  .route-card-heading,
  .route-visual-header {
    grid-template-columns: 1fr;
    display: grid;
  }

  .route-readiness-status,
  .route-plot-legend {
    justify-self: start;
  }

  #route-breakdown-container details > summary {
    align-items: flex-start;
    flex-direction: column;
  }

  .route-review-sidebar .route-kpi-grid {
    grid-template-columns: 1fr;
  }

  .route-review-sidebar {
    position: static;
  }
}

@media (min-width: 1700px) {
  .route-results-workspace {
    grid-template-columns: minmax(42rem, 1fr) minmax(18rem, 23rem);
  }

  .route-review-sidebar {
    position: sticky;
    top: var(--space-4, 1rem);
  }

  .route-review-sidebar .route-kpi-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}