:root {
  --ds-blue: #28598a;
  --ds-blue-dark: #1e466e;
  --ds-blue-soft: #eaf2f8;
  --ds-bg: #f5f7fa;
  --ds-surface: #ffffff;
  --ds-surface-soft: #f7f8fa;
  --ds-text: #132238;
  --ds-text-2: #4e6074;
  --ds-text-3: #5f7184;
  --ds-border: #dce5ed;

  --ds-success: #2e6f5b;
  --ds-success-soft: #a8dcc5;
  --ds-warning: #806a1e;
  --ds-warning-soft: #e8d99b;
  --ds-danger: #8d4540;
  --ds-danger-soft: #e7b0aa;
  --ds-missing: #e9edf2;

  --ds-font-heading: 'Geist', sans-serif;
  --ds-font-body: 'Inter', sans-serif;
  --ds-font-caption: 'Funnel Sans', sans-serif;

  --ds-space-1: 4px;
  --ds-space-2: 8px;
  --ds-space-3: 12px;
  --ds-space-4: 16px;
  --ds-space-6: 24px;
  --ds-space-8: 32px;
  --ds-space-10: 40px;

  --ds-radius-control: 10px;
  --ds-radius-card: 14px;
  --ds-radius-feature: 16px;
  --ds-shadow-card: 0 2px 8px rgb(19 34 56 / 6%);
  --ds-focus: 0 0 0 3px rgb(40 89 138 / 24%);
}

body {
  margin: 0;
  color: var(--ds-text);
  background: var(--ds-bg);
  font-family: var(--ds-font-body);
  font-size: 14px;
}

h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--ds-font-heading);
  color: var(--ds-text);
}

.ds-card {
  padding: 20px;
  background: var(--ds-surface);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius-card);
  box-shadow: var(--ds-shadow-card);
}

.ds-kpi-value {
  color: var(--ds-blue);
  font: 800 32px/1 var(--ds-font-body);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
}

.ds-button {
  min-height: 40px;
  padding: 0 16px;
  border: 0;
  border-radius: var(--ds-radius-control);
  font: 700 13px var(--ds-font-body);
  cursor: pointer;
}

.ds-button--primary {
  color: #fff;
  background: var(--ds-blue);
}

.ds-button--primary:hover { background: var(--ds-blue-dark); }

.ds-button--secondary {
  color: var(--ds-text);
  background: var(--ds-surface-soft);
  border: 1px solid var(--ds-border);
}

.ds-button:focus-visible,
.ds-interactive:focus-visible {
  outline: 0;
  box-shadow: var(--ds-focus);
}

.ds-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 32px;
  padding: 0 12px;
  color: var(--ds-blue);
  background: var(--ds-blue-soft);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.ds-badge__count {
  display: grid;
  width: 22px;
  height: 22px;
  place-items: center;
  background: var(--ds-surface);
  border-radius: 50%;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.ds-source {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 9px;
  color: var(--ds-success);
  background: #edf6f2;
  border: 1px solid #c8e2d7;
  border-radius: 6px;
  font: 700 11px var(--ds-font-caption);
}

.ds-insight {
  padding: 16px;
  color: var(--ds-text-2);
  background: var(--ds-blue-soft);
  border-radius: var(--ds-radius-card);
}

.ds-insight strong {
  display: block;
  margin-bottom: 6px;
  color: var(--ds-text);
  font-family: var(--ds-font-heading);
}

.ds-status--good { background: var(--ds-success-soft); color: var(--ds-success); }
.ds-status--warning { background: var(--ds-warning-soft); color: var(--ds-warning); }
.ds-status--critical { background: var(--ds-danger-soft); color: var(--ds-danger); }

.ds-grid { display: grid; gap: 16px; }
.ds-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.ds-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.ds-app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--ds-surface);
  border-bottom: 1px solid var(--ds-border);
}

.ds-app-header__main {
  display: flex;
  min-height: 68px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 24px;
}

.ds-tabs {
  display: flex;
  min-height: 44px;
  gap: 24px;
  padding: 0 24px;
  overflow-x: auto;
}

.ds-tab {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: var(--ds-text-2);
  border-bottom: 2px solid transparent;
  font-weight: 600;
  white-space: nowrap;
}

.ds-tab[aria-current='page'] {
  color: var(--ds-blue);
  border-bottom-color: var(--ds-blue);
  font-weight: 700;
}

.ds-live-status,
.ds-classification,
.ds-validation-badge {
  display: inline-flex;
  min-height: 26px;
  align-items: center;
  gap: 6px;
  padding: 0 9px;
  border-radius: 999px;
  font: 700 11px var(--ds-font-caption);
}

.ds-live-status,
.ds-validation-badge--valid {
  color: var(--ds-success);
  background: #edf6f2;
}

.ds-page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.ds-search,
.ds-field__control {
  min-height: 40px;
  color: var(--ds-text);
  background: var(--ds-surface);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius-control);
  font: 400 13px var(--ds-font-body);
}

.ds-search { padding: 0 14px; }
.ds-field { display: grid; gap: 6px; }
.ds-field__label { font: 700 11px var(--ds-font-caption); }
.ds-field__control { width: 100%; padding: 0 12px; box-sizing: border-box; }
.ds-field__control[aria-invalid='true'] { border-color: var(--ds-danger); }
.ds-field__error { color: var(--ds-danger); font-size: 11px; }

.ds-synthesis {
  padding: 24px;
  color: #fff;
  background: var(--ds-blue);
  border-radius: var(--ds-radius-feature);
}

.ds-synthesis h2 { color: #fff; }

.ds-metric-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.ds-ai-card__type {
  color: var(--ds-text-3);
  font: 700 10px var(--ds-font-caption);
  letter-spacing: .06em;
}

.ds-classification {
  color: var(--ds-blue);
  background: var(--ds-blue-soft);
  border-radius: 6px;
}

.ds-heatmap-cell {
  min-width: 18px;
  min-height: 18px;
  border-radius: 4px;
}

.ds-heatmap-cell--good { background: var(--ds-success-soft); }
.ds-heatmap-cell--warning { background: var(--ds-warning-soft); }
.ds-heatmap-cell--critical { background: var(--ds-danger-soft); }
.ds-heatmap-cell--missing { background: var(--ds-missing); }

.ds-territory-panel {
  padding: 18px;
  background: var(--ds-blue-soft);
  border-radius: var(--ds-radius-card);
}

.ds-regional-map {
  min-height: 320px;
  overflow: hidden;
  background: var(--ds-surface);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius-card);
}

.ds-regional-map [aria-current='true'] {
  outline: 3px solid rgb(40 89 138 / 28%);
  outline-offset: 2px;
}

.ds-virtual-analyst {
  display: grid;
  gap: 12px;
  padding: 18px;
  background: var(--ds-surface);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius-card);
  box-shadow: var(--ds-shadow-card);
}

.ds-virtual-analyst__question {
  padding: 12px;
  background: var(--ds-blue-soft);
  border-radius: var(--ds-radius-control);
  font-weight: 600;
}

.ds-bar-track {
  height: 8px;
  overflow: hidden;
  background: var(--ds-blue-soft);
  border-radius: 999px;
}

.ds-bar-fill { height: 100%; background: var(--ds-blue); border-radius: inherit; }

.ds-stepper {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.ds-step__number {
  display: inline-grid;
  width: 28px;
  height: 28px;
  place-items: center;
  color: var(--ds-text-3);
  background: var(--ds-surface-soft);
  border: 1px solid var(--ds-border);
  border-radius: 50%;
  font-weight: 800;
}

.ds-step[aria-current='step'] .ds-step__number,
.ds-step[data-complete='true'] .ds-step__number {
  color: #fff;
  background: var(--ds-blue);
  border-color: var(--ds-blue);
}

.ds-table-card[aria-selected='true'] { border: 2px solid var(--ds-blue); }

.ds-segmented {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  gap: 4px;
  padding: 4px;
  background: var(--ds-surface-soft);
  border-radius: var(--ds-radius-control);
}

.ds-segmented__option {
  min-height: 36px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  font-weight: 600;
}

.ds-segmented__option[aria-pressed='true'] {
  color: var(--ds-blue);
  background: var(--ds-surface);
  box-shadow: var(--ds-shadow-card);
  font-weight: 700;
}

.ds-dropzone {
  display: grid;
  min-height: 220px;
  place-items: center;
  padding: 24px;
  text-align: center;
  background: var(--ds-blue-soft);
  border: 1px dashed var(--ds-blue);
  border-radius: var(--ds-radius-card);
}

.ds-dropzone[data-dragover='true'] { box-shadow: var(--ds-focus); }
.ds-dropzone[aria-busy='true'] { cursor: progress; opacity: .72; }

.ds-preview-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius-control);
  font-size: 12px;
}

.ds-preview-table th,
.ds-preview-table td { padding: 10px 12px; border-bottom: 1px solid var(--ds-border); text-align: left; }
.ds-preview-table th { color: var(--ds-text-2); background: var(--ds-surface-soft); font: 700 11px var(--ds-font-caption); }
.ds-preview-table td[data-invalid='true'] { color: var(--ds-danger); background: #fbf0ef; }

.ds-validation-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.ds-source-card,
.ds-audit-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.ds-empty {
  display: grid;
  min-height: 220px;
  place-items: center;
  align-content: center;
  gap: 10px;
  padding: 24px;
  text-align: center;
}

.ds-alert {
  display: flex;
  gap: 10px;
  padding: 14px;
  border-radius: 12px;
}

.ds-alert--success { background: #edf6f2; }
.ds-alert--warning { background: #fbf7e8; }
.ds-alert--error { background: #fbf0ef; }
.ds-alert--info { background: var(--ds-blue-soft); }

.ds-toast {
  width: min(420px, calc(100vw - 32px));
  padding: 18px;
  color: #fff;
  background: var(--ds-text);
  border-radius: var(--ds-radius-card);
  box-shadow: 0 12px 32px rgb(19 34 56 / 24%);
}

@media (max-width: 1199px) {
  .ds-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 767px) {
  .ds-grid--2,
  .ds-grid--3 { grid-template-columns: 1fr; }
  .ds-page-header { display: grid; }
  .ds-metric-strip { grid-template-columns: 1fr; }
  .ds-stepper { grid-template-columns: 1fr; }
}