/* ===== Base ===== */
*, *::before, *::after { box-sizing: border-box; }

body {
  background-color: #f8f9fa;
  color: #495057;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  margin: 0;
  padding: 0;
  min-height: 100vh;
}

/* ===== Scrollbars ===== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.05);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.3);
}

/* ===== AppShell header ===== */
.app-header {
  background: #ffffff;
  border-bottom: 1px solid #dee2e6;
}

.brand-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #212529;
  letter-spacing: -0.01em;
  margin: 0;
}

.brand-subtitle {
  font-size: 0.78rem;
  color: #6c757d;
  margin: 0;
}

/* ===== Horizontal nav ===== */
.horizontal-nav {
  display: flex;
  gap: 2px;
  align-items: center;
}

.horizontal-nav .mantine-NavLink-root {
  padding: 8px 14px;
  border-radius: 6px;
  color: #6c757d;
  font-size: 0.85rem;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s, background-color 0.15s;
  white-space: nowrap;
}

.horizontal-nav .mantine-NavLink-root:hover {
  background-color: #f1f3f5;
  color: #343a40;
}

.horizontal-nav .mantine-NavLink-root[data-active="true"] {
  color: #212529;
  font-weight: 600;
  background-color: transparent;
  border-bottom-color: #e8a020;
  border-radius: 0;
}

.horizontal-nav .mantine-NavLink-label {
  font-size: 0.85rem;
}

/* ===== Paper hover elevation ===== */
.mantine-Paper-root {
  transition: box-shadow 0.2s ease;
}

.mantine-Paper-root:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

/* ===== KPI cards ===== */
.kpi-card {
  background: #ffffff !important;
  border: 1px solid #dee2e6 !important;
  border-top: 3px solid #e8a020 !important;
}

/* ===== Chart containers ===== */
.chart-paper {
  background: #ffffff !important;
  border: 1px solid #dee2e6 !important;
}

/* ===== Strip log panels ===== */
.strip-log-panel {
  border-right: 1px solid #dee2e6;
}

/* ===== Measurement readout ===== */
.measure-readout {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.85rem;
  color: #d48806;
  background: #fff7e6;
  border: 1px solid #ffd666;
  border-radius: 6px;
  padding: 8px 12px;
  min-height: 36px;
  display: flex;
  align-items: center;
}

/* ===== Table ===== */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
}

.data-table th {
  background: #f1f3f5;
  color: #6c757d;
  text-transform: uppercase;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 8px 10px;
  text-align: left;
  border-bottom: 2px solid #dee2e6;
}

.data-table td {
  padding: 6px 10px;
  border-bottom: 1px solid #e9ecef;
  color: #495057;
}

.data-table tr:hover td {
  background: #f8f9fa;
}

/* ===== Scrollable table wrapper ===== */
.table-scroll {
  max-height: 420px;
  overflow-y: auto;
}

.table-scroll::-webkit-scrollbar { width: 5px; }
.table-scroll::-webkit-scrollbar-track { background: #f1f3f5; }
.table-scroll::-webkit-scrollbar-thumb { background: #ced4da; border-radius: 3px; }

/* ===== Section titles ===== */
.section-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: #212529;
  margin: 0 0 4px;
}

.section-description {
  font-size: 0.75rem;
  color: #6c757d;
  margin: 0 0 12px;
}

/* ===== Legend swatch ===== */
.lith-swatch {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 2px;
  margin-right: 6px;
  vertical-align: middle;
  border: 1px solid rgba(0, 0, 0, 0.1);
}

/* ===== Depth cursor line — targeted via JS class injection ===== */
.depth-cursor-line {
  stroke: #e8a020 !important;
  stroke-width: 1.5px !important;
  stroke-dasharray: 5, 3 !important;
  opacity: 0.85 !important;
}

/* ===== Mantine overrides ===== */
.mantine-Badge-root {
  text-transform: none;
}

.mantine-NavLink-root[data-active="true"] {
  font-weight: 600;
}

/* ===== Plotly modebar ===== */
.js-plotly-plot .plotly .modebar {
  top: 5px !important;
  right: 5px !important;
}

.js-plotly-plot .plotly .modebar-btn {
  font-size: 14px !important;
}

/* ===== Tip paper (accent left border) ===== */
.tip-paper {
  border-left: 3px solid #e8a020 !important;
}

/* ===== Y-axis interaction hint overlay ===== */
.y-axis-hint {
  position: absolute;
  left: 62px;
  top: 54px;
  font-size: 9px;
  color: #adb5bd;
  background: rgba(255, 255, 255, 0.93);
  padding: 2px 8px;
  border-radius: 10px;
  border: 1px solid #dee2e6;
  pointer-events: none;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
  font-family: Inter, sans-serif;
  animation: hint-fade-in 0.9s ease-out;
}

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

/* ===== Feature chip badges ===== */
.feature-chips .mantine-Badge-root {
  cursor: help;
}

/* ===== DashTour overrides ===== */
[data-tour-elem="helper"] {
  font-family: Inter, -apple-system, sans-serif !important;
  font-size: 0.875rem !important;
  color: #212529 !important;
  line-height: 1.5 !important;
  max-width: 320px !important;
}

[data-tour-elem="badge"] {
  background: #e8a020 !important;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .brand-title { font-size: 0.95rem; }
  .brand-subtitle { display: none; }
  .horizontal-nav .mantine-NavLink-root { padding: 6px 10px; font-size: 0.8rem; }
  .horizontal-nav .mantine-NavLink-label { font-size: 0.8rem; }
}

@media print {
  .mantine-AppShell-header,
  .mantine-Button-root,
  .mantine-Select-root,
  .mantine-MultiSelect-root {
    display: none !important;
  }

  .mantine-Paper-root {
    break-inside: avoid;
    box-shadow: none !important;
    border: 1px solid #dee2e6 !important;
  }
}

/* ===== Explorer page sidebar (CodePen port) ===== */
.explorer-info-panel {
  background: #f8f9fb !important;
}

.explorer-panel-title {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: #8b8fa3;
  font-weight: 600;
  margin: 0 0 8px;
}

.explorer-info-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 12px;
  border-bottom: 1px solid #ecedf0;
}

.explorer-info-row:last-child {
  border-bottom: none;
}

.explorer-info-label {
  color: #8b8fa3;
}

.explorer-info-value {
  color: #1e2028;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.explorer-distance-result {
  background: #eef4ff;
  border: 1px solid #b6d0f7;
  border-radius: 6px;
  padding: 8px 12px;
  margin-top: 6px;
  font-size: 12px;
  color: #2563eb;
  display: none;
}