.estimation-page {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.estimation-hero {
  margin: -2rem -1.5rem 0;
  padding: 4rem 1.5rem 3rem;
  background: radial-gradient(circle at top left, #2563eb, #0f172a 60%);
  color: #fff;
  border-radius: 0 0 1.5rem 1.5rem;
}

.estimation-hero-kicker {
  margin: 0 0 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.85rem;
  color: #bfdbfe;
}

.estimation-hero h1 {
  margin: 0 0 1rem;
  font-size: 3rem;
  line-height: 1.05;
}

.estimation-hero-copy {
  max-width: 52rem;
  margin: 0;
  font-size: 1.15rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.88);
}

.estimation-intro {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: minmax(0, 1.8fr) minmax(18rem, 1fr);
}

.estimation-intro-note {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 1rem;
  padding: 1.25rem;
}

.estimation-intro-note h3 {
  margin-top: 0;
}

.estimation-intro-note ul {
  margin: 0;
  padding-left: 1.1rem;
}

.estimation-app-root {
  min-height: 30rem;
}

.estimation-workbench {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.estimation-toolbar,
.estimation-summary-grid,
.estimation-layout {
  display: grid;
  gap: 1rem;
}

.estimation-toolbar {
  grid-template-columns: minmax(0, 1.5fr) minmax(18rem, 1fr);
  align-items: start;
}

.estimation-toolbar-copy h2,
.estimation-panel-header h3 {
  margin: 0;
}

.estimation-toolbar-copy p,
.estimation-panel-subtitle,
.estimation-muted,
.estimation-risk-row p {
  color: #64748b;
}

.estimation-toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: flex-end;
}

.estimation-button {
  border: 0;
  border-radius: 999px;
  padding: 0.75rem 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease, background 0.15s ease;
}

.estimation-button:hover {
  transform: translateY(-1px);
}

.estimation-button--secondary {
  background: #2563eb;
  color: #fff;
}

.estimation-button--ghost {
  background: #eff6ff;
  color: #1d4ed8;
}

.estimation-button--danger {
  background: #fee2e2;
  color: #b91c1c;
}

.estimation-flash {
  margin: 0;
  padding: 0.85rem 1rem;
  border-radius: 0.75rem;
  background: #ecfeff;
  color: #155e75;
  border: 1px solid #a5f3fc;
}

.estimation-summary-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.estimation-summary-card,
.estimation-panel {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 1rem;
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.04);
}

.estimation-summary-card {
  padding: 1rem 1.1rem;
}

.estimation-summary-card strong {
  display: block;
  margin-top: 0.4rem;
  color: #0f172a;
  font-size: 1.1rem;
}

.estimation-summary-label {
  color: #64748b;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.estimation-layout {
  grid-template-columns: minmax(0, 1.15fr) minmax(20rem, 0.85fr);
  align-items: start;
}

.estimation-layout--results {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.estimation-panel {
  padding: 1.2rem;
}

.estimation-panel-header {
  display: flex;
  gap: 0.75rem;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.estimation-panel-subtitle {
  font-size: 0.92rem;
  text-align: right;
}

.estimation-badge,
.estimation-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
}

.estimation-badge {
  background: #dbeafe;
  color: #1d4ed8;
}

.estimation-chip--verification {
  background: #fee2e2;
  color: #b91c1c;
}

.estimation-chip--deployment {
  background: #ffedd5;
  color: #c2410c;
}

.estimation-chip--standard {
  background: #e2e8f0;
  color: #334155;
}

.estimation-details {
  border: 1px solid #e2e8f0;
  border-radius: 0.85rem;
  margin-bottom: 0.85rem;
  overflow: hidden;
}

.estimation-details summary {
  cursor: pointer;
  padding: 0.9rem 1rem;
  font-weight: 700;
  background: #f8fafc;
}

.estimation-textarea,
.estimation-pre,
.estimation-field input,
.estimation-field select,
.estimation-task-table input,
.estimation-task-table select {
  width: 100%;
  border: 1px solid #cbd5e1;
  border-radius: 0.8rem;
  font: inherit;
  color: #0f172a;
  background: #fff;
}

.estimation-textarea,
.estimation-pre {
  min-height: 14rem;
  padding: 1rem;
  margin: 0;
  box-sizing: border-box;
}

.estimation-textarea {
  border: 0;
  border-top: 1px solid #e2e8f0;
  border-radius: 0;
  resize: vertical;
}

.estimation-pre {
  white-space: pre-wrap;
  border: 0;
  border-top: 1px solid #e2e8f0;
  border-radius: 0;
  background: #fff;
}

.estimation-errors {
  margin-bottom: 1rem;
  padding: 0.9rem 1rem;
  border-radius: 0.85rem;
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
}

.estimation-errors p {
  margin: 0.2rem 0;
}

.estimation-mermaid-preview {
  border: 1px solid #e2e8f0;
  border-radius: 1rem;
  background: #fff;
  padding: 1rem;
  overflow: auto;
}

.estimation-mermaid-preview svg {
  min-width: 100%;
}

.estimation-mermaid-node {
  cursor: pointer;
}

.estimation-mermaid-node.is-selected > *:first-child {
  stroke: #2563eb !important;
  stroke-width: 3px !important;
}

.estimation-controls-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.estimation-field,
.estimation-toggle {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  font-weight: 600;
  color: #334155;
}

.estimation-field input,
.estimation-field select,
.estimation-task-table input,
.estimation-task-table select {
  padding: 0.75rem 0.85rem;
  box-sizing: border-box;
}

.estimation-toggle {
  grid-column: 1 / -1;
  flex-direction: row;
  align-items: center;
  gap: 0.7rem;
}

.estimation-developers {
  margin-top: 1.25rem;
  display: grid;
  gap: 0.85rem;
}

.estimation-selected-task {
  margin-top: 1.25rem;
  padding: 1rem;
  border-radius: 1rem;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
}

.estimation-selected-task-title {
  margin: 0.2rem 0 0.4rem;
  font-size: 1.15rem;
  color: #0f172a;
}

.estimation-selected-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.95rem;
}

.estimation-chart {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.estimation-chart--interactive svg {
  cursor: crosshair;
}

.estimation-chart svg {
  width: 100%;
  height: auto;
  background: linear-gradient(180deg, #fff, #f8fafc);
  border-radius: 0.9rem;
}

.estimation-axis {
  stroke: #94a3b8;
  stroke-width: 1;
}

.estimation-hover-line {
  stroke: #0f172a;
  stroke-width: 2;
  stroke-dasharray: 6 4;
  opacity: 0.7;
  pointer-events: none;
}

.estimation-chart-tooltip {
  position: absolute;
  top: 0.75rem;
  left: 50%;
  transform: translateX(-50%);
  display: inline-flex;
  flex-direction: column;
  gap: 0.3rem;
  max-width: min(18rem, calc(100% - 2rem));
  padding: 0.7rem 0.85rem;
  border-radius: 0.85rem;
  background: rgba(15, 23, 42, 0.92);
  color: #f8fafc;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.28);
  pointer-events: none;
  z-index: 2;
}

.estimation-chart-tooltip[hidden] {
  display: none !important;
}

.estimation-chart-tooltip strong {
  font-size: 0.95rem;
}

.estimation-chart-tooltip span {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  line-height: 1.35;
}

.estimation-tooltip-swatch {
  display: inline-block;
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 999px;
}

.estimation-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
}

.estimation-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #334155;
  font-size: 0.9rem;
}

.estimation-legend-swatch {
  width: 0.9rem;
  height: 0.9rem;
  border-radius: 999px;
}

.estimation-risk-table {
  display: grid;
  gap: 0.75rem;
}

.estimation-risk-row {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) 8rem 8rem minmax(10rem, 1fr);
  gap: 1rem;
  align-items: center;
  padding: 0.9rem 1rem;
  border: 1px solid #e2e8f0;
  border-radius: 0.9rem;
}

.estimation-risk-row strong,
.estimation-risk-row p {
  margin: 0;
}

.estimation-risk-metric {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.9rem;
  color: #64748b;
}

.estimation-risk-metric strong {
  color: #0f172a;
}

.estimation-risk-bar {
  background: #fee2e2;
  border-radius: 999px;
  overflow: hidden;
  height: 0.85rem;
}

.estimation-risk-bar-fill {
  height: 100%;
  border-radius: 999px;
}

.estimation-task-table {
  overflow: auto;
}

.estimation-task-table table {
  width: 100%;
  border-collapse: collapse;
}

.estimation-task-table th,
.estimation-task-table td {
  padding: 0.85rem 0.75rem;
  border-top: 1px solid #e2e8f0;
  text-align: left;
  vertical-align: top;
}

.estimation-task-table thead th {
  border-top: 0;
  color: #475569;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.estimation-task-table tr.is-selected {
  background: #eff6ff;
}

.estimation-task-link {
  padding: 0;
  border: 0;
  background: transparent;
  color: #1d4ed8;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  text-align: left;
}

.estimation-task-meta {
  margin-top: 0.45rem;
}

.estimation-slider-label {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.5rem;
  align-items: center;
  min-width: 12rem;
  color: #64748b;
  font-size: 0.9rem;
}

@media (max-width: 900px) {
  .estimation-hero {
    padding: 3rem 1rem 2.5rem;
  }

  .estimation-hero h1 {
    font-size: 2.2rem;
  }

  .estimation-intro {
    grid-template-columns: 1fr;
  }

  .estimation-toolbar,
  .estimation-layout,
  .estimation-layout--results,
  .estimation-summary-grid,
  .estimation-controls-grid,
  .estimation-risk-row {
    grid-template-columns: 1fr;
  }

  .estimation-toolbar-actions {
    justify-content: flex-start;
  }

  .estimation-panel-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .estimation-panel-subtitle {
    text-align: left;
  }
}