diff --git a/vehicle-data-platform/apps/web/src/v2/productionEntry.test.ts b/vehicle-data-platform/apps/web/src/v2/productionEntry.test.ts
index a3b33173..1f7f1399 100644
--- a/vehicle-data-platform/apps/web/src/v2/productionEntry.test.ts
+++ b/vehicle-data-platform/apps/web/src/v2/productionEntry.test.ts
@@ -283,6 +283,12 @@ describe('V2 production entry', () => {
     expect(workspaceStyles).toContain('grid-template-columns: minmax(260px, 1.08fr) minmax(220px, .92fr);');
     expect(workspaceStyles).toContain('.v2-user-editor-sidesheet .v2-assigned-vins {');
     expect(workspaceStyles).toContain('grid-template-columns: repeat(2, minmax(0, 1fr));');
+    expect(workspaceStyles).toContain('Short landscape operations cockpit.');
+    expect(workspaceStyles).toContain('grid-template-columns: minmax(196px, .42fr) minmax(0, 1fr);');
+    expect(workspaceStyles).toContain('.v2-ops-workspace.is-health .v2-ops-metric-rail {');
+    expect(workspaceStyles).toContain('grid-template-columns: 1.12fr repeat(4, minmax(0, 1fr));');
+    expect(workspaceStyles).toContain('.v2-ops-workspace.is-diagnostic {');
+    expect(workspaceStyles).toContain('grid-template-columns: minmax(176px, .34fr) minmax(0, 1fr);');
     expect(corePageSources.OperationsPage).toContain('<Checkbox');
     expect(corePageSources.OperationsPage).toContain('<Input');
     expect(corePageSources.OperationsPage).toContain('<Card className="v2-source-diagnostic"');
diff --git a/vehicle-data-platform/apps/web/src/v2/styles/workspace.css b/vehicle-data-platform/apps/web/src/v2/styles/workspace.css
index 9151268a..8d0eeaa7 100644
--- a/vehicle-data-platform/apps/web/src/v2/styles/workspace.css
+++ b/vehicle-data-platform/apps/web/src/v2/styles/workspace.css
@@ -18,6 +18,388 @@
   padding: 8px 14px;
 }
 
+/*
+ * Short landscape operations cockpit.
+ * Treat the command bar and workspace switcher as one compact control rail,
+ * then spend the remaining height on evidence. Health metrics stay in one
+ * scan line and the diagnostic selector no longer pushes its result below
+ * the fixed mobile navigation.
+ */
+@media (max-width: 900px) and (max-height: 480px) and (orientation: landscape) {
+  .v2-ops-page {
+    display: grid;
+    height: 100%;
+    min-height: 0;
+    grid-template-columns: minmax(196px, .42fr) minmax(0, 1fr);
+    grid-template-rows: 44px minmax(0, 1fr);
+    gap: 5px;
+    overflow: hidden;
+    padding: 5px 6px 6px;
+  }
+
+  .v2-ops-page > .v2-ops-command-bar {
+    width: 100%;
+    height: 44px;
+    min-height: 44px;
+    grid-column: 1;
+    grid-row: 1;
+    gap: 5px;
+    border-radius: 9px;
+    padding: 4px 5px 4px 9px;
+  }
+
+  .v2-ops-command-bar .v2-workspace-command-copy {
+    min-width: 0;
+    gap: 0;
+  }
+
+  .v2-ops-command-bar .v2-workspace-command-copy > .semi-typography:first-child {
+    overflow: hidden;
+    font-size: 11px;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+  }
+
+  .v2-ops-command-bar .v2-workspace-command-copy > .semi-typography:last-child,
+  .v2-ops-command-bar .v2-workspace-command-status,
+  .v2-ops-command-bar .v2-workspace-command-meta {
+    display: none;
+  }
+
+  .v2-ops-command-bar .v2-workspace-command-actions > .semi-button {
+    width: 34px;
+    min-width: 34px;
+    height: 34px;
+    min-height: 34px;
+    border-radius: 8px;
+  }
+
+  .v2-ops-navigation {
+    position: static;
+    z-index: auto;
+    width: 100%;
+    height: 44px;
+    min-height: 44px;
+    grid-column: 2;
+    grid-row: 1;
+    border-radius: 9px;
+    padding: 3px;
+  }
+
+  .v2-ops-navigation .v2-ops-tabs.v2-segmented-tabs {
+    width: 100%;
+    height: 36px;
+    min-height: 36px;
+    grid-template-columns: repeat(3, minmax(88px, 1fr));
+    gap: 2px;
+    overflow: hidden;
+    border-radius: 7px;
+    padding: 2px;
+  }
+
+  .v2-ops-navigation .v2-ops-tabs.v2-segmented-tabs > .semi-button {
+    min-width: 0;
+    height: 32px;
+    min-height: 32px;
+    border-radius: 6px;
+    padding-inline: 5px;
+    font-size: 10px;
+  }
+
+  .v2-ops-navigation-meta {
+    display: none;
+  }
+
+  .v2-ops-page > .v2-ops-workspace {
+    width: 100%;
+    height: 100%;
+    min-height: 0;
+    grid-column: 1 / -1;
+    grid-row: 2;
+    flex: none;
+    overflow: auto;
+    scrollbar-gutter: stable;
+  }
+
+  .v2-ops-page > .v2-ops-workspace.is-reconciliation {
+    overflow: hidden;
+  }
+
+  .v2-reconcile-heading.v2-workspace-panel-header {
+    min-height: 42px;
+    padding: 4px 7px;
+  }
+
+  .v2-reconcile-heading .v2-workspace-panel-copy > .semi-typography:not(h5),
+  .v2-reconcile-heading .v2-reconcile-auto-tag {
+    display: none;
+  }
+
+  .v2-reconcile-heading .v2-workspace-panel-copy > h5.semi-typography {
+    font-size: 11px;
+  }
+
+  .v2-reconcile-heading > .v2-workspace-panel-actions {
+    gap: 4px;
+  }
+
+  .v2-reconcile-heading > .v2-workspace-panel-actions > .semi-button {
+    height: 32px;
+    min-height: 32px;
+    border-radius: 7px;
+    padding-inline: 8px;
+    font-size: 9px;
+  }
+
+  .v2-reconcile-overview,
+  .v2-reconcile-overview > .v2-reconcile-kpis,
+  .v2-reconcile-overview .v2-reconcile-kpi-card.semi-card {
+    height: 58px;
+  }
+
+  .v2-reconcile-overview .v2-reconcile-kpi-card > .semi-card-body {
+    min-height: 58px;
+    padding: 6px 8px;
+  }
+
+  .v2-reconcile-overview .v2-reconcile-kpi-card small {
+    font-size: 8px;
+  }
+
+  .v2-reconcile-overview .v2-reconcile-kpi-card strong {
+    margin-top: 3px;
+    font-size: 16px;
+  }
+
+  .v2-reconcile-overview .v2-reconcile-kpi-card span {
+    display: none;
+  }
+
+  .v2-ops-workspace.is-health {
+    gap: 5px;
+  }
+
+  .v2-ops-workspace.is-health .v2-ops-overview > .semi-card-body > .v2-workspace-panel-header,
+  .v2-ops-workspace.is-health .v2-ops-panel > .semi-card-body > .v2-workspace-panel-header {
+    min-height: 40px;
+    padding: 4px 8px;
+  }
+
+  .v2-ops-workspace.is-health .v2-workspace-panel-copy {
+    gap: 0;
+  }
+
+  .v2-ops-workspace.is-health .v2-workspace-panel-copy > h5.semi-typography {
+    font-size: 11px;
+  }
+
+  .v2-ops-workspace.is-health .v2-workspace-panel-copy > .semi-typography:not(h5),
+  .v2-ops-workspace.is-health .v2-ops-overview-meta > .semi-typography {
+    display: none;
+  }
+
+  .v2-ops-workspace.is-health .v2-ops-overview-meta {
+    gap: 4px;
+  }
+
+  .v2-ops-workspace.is-health .v2-ops-overview-meta .semi-tag,
+  .v2-ops-workspace.is-health .v2-workspace-panel-actions .semi-tag {
+    min-height: 21px;
+    padding-inline: 6px;
+    font-size: 8px;
+  }
+
+  .v2-ops-workspace.is-health .v2-ops-metric-rail {
+    display: grid;
+    grid-template-columns: 1.12fr repeat(4, minmax(0, 1fr));
+    overflow: hidden;
+  }
+
+  .v2-ops-workspace.is-health .v2-ops-metric,
+  .v2-ops-workspace.is-health .v2-ops-metric:first-child {
+    min-width: 0;
+    min-height: 78px;
+    grid-column: auto;
+    border-top: 0;
+    border-right: 0;
+    border-left: 1px solid #e7edf4;
+    padding: 8px 9px 7px;
+  }
+
+  .v2-ops-workspace.is-health .v2-ops-metric:first-child {
+    border-left: 0;
+  }
+
+  .v2-ops-workspace.is-health .v2-ops-metric small {
+    font-size: 8px;
+  }
+
+  .v2-ops-workspace.is-health .v2-ops-metric strong,
+  .v2-ops-workspace.is-health .v2-ops-metric:first-child strong {
+    margin: 6px 0 5px;
+    font-size: 15px;
+  }
+
+  .v2-ops-workspace.is-health .v2-ops-metric:first-child strong {
+    font-size: 16px;
+  }
+
+  .v2-ops-workspace.is-health .v2-ops-metric span {
+    font-size: 8px;
+    line-height: 1.3;
+  }
+
+  .v2-ops-workspace.is-health .v2-ops-metric::after {
+    right: 9px;
+    left: 9px;
+    height: 2px;
+  }
+
+  .v2-ops-workspace.is-health .v2-ops-source-list.semi-card-group {
+    display: grid;
+    grid-template-columns: repeat(3, minmax(0, 1fr));
+    gap: 5px;
+    overflow: visible;
+    padding: 5px;
+    scroll-snap-type: none;
+  }
+
+  .v2-ops-workspace.is-health .v2-ops-source-card.semi-card {
+    width: auto;
+    min-width: 0;
+    flex: none;
+  }
+
+  .v2-ops-workspace.is-diagnostic {
+    display: grid;
+    min-height: 0;
+    grid-template-columns: minmax(176px, .34fr) minmax(0, 1fr);
+    grid-template-rows: minmax(0, 1fr);
+    align-items: stretch;
+    gap: 5px;
+    overflow: hidden;
+  }
+
+  .v2-ops-workspace.is-diagnostic > .v2-source-mobile-discovery {
+    min-height: 0;
+    align-content: start;
+    grid-column: 1;
+    grid-row: 1;
+  }
+
+  .v2-ops-workspace.is-diagnostic .v2-source-mobile-discovery > .v2-mobile-filter-toggle.semi-button {
+    height: 50px;
+    min-height: 50px;
+    border-radius: 9px;
+  }
+
+  .v2-ops-workspace.is-diagnostic > .v2-source-diagnostic.semi-card {
+    height: 100%;
+    min-height: 0;
+    grid-column: 2;
+    grid-row: 1;
+    overflow: auto;
+    border-radius: 9px;
+  }
+
+  .v2-ops-workspace.is-diagnostic > .v2-source-diagnostic > .semi-card-body > .v2-workspace-panel-header {
+    min-height: 42px;
+    padding: 4px 7px;
+  }
+
+  .v2-ops-workspace.is-diagnostic .v2-source-diagnostic .v2-workspace-panel-copy {
+    gap: 0;
+  }
+
+  .v2-ops-workspace.is-diagnostic .v2-source-diagnostic .v2-workspace-panel-copy > h5.semi-typography {
+    font-size: 11px;
+  }
+
+  .v2-ops-workspace.is-diagnostic .v2-source-diagnostic .v2-workspace-panel-copy > .semi-typography:not(h5) {
+    font-size: 8px;
+  }
+
+  .v2-ops-workspace.is-diagnostic .v2-source-diagnostic .v2-workspace-panel-actions {
+    gap: 4px;
+  }
+
+  .v2-ops-workspace.is-diagnostic .v2-source-diagnostic .v2-workspace-panel-actions .semi-tag {
+    min-height: 21px;
+    padding-inline: 6px;
+    font-size: 8px;
+  }
+
+  .v2-ops-workspace.is-diagnostic .v2-source-diagnostic .v2-workspace-panel-actions > .semi-button {
+    height: 30px;
+    min-height: 30px;
+    border-radius: 7px;
+    padding-inline: 7px;
+    font-size: 8px;
+  }
+
+  .v2-ops-workspace.is-diagnostic .v2-source-summary.semi-card-group {
+    grid-template-columns: repeat(4, minmax(0, 1fr));
+    gap: 4px;
+    padding: 4px;
+  }
+
+  .v2-ops-workspace.is-diagnostic .v2-source-summary-card.semi-card > .semi-card-body {
+    min-height: 62px;
+    padding: 7px 8px;
+  }
+
+  .v2-ops-workspace.is-diagnostic .v2-source-summary-card small {
+    font-size: 8px;
+  }
+
+  .v2-ops-workspace.is-diagnostic .v2-source-summary-card strong {
+    margin-top: 4px;
+    font-size: 12px;
+  }
+
+  .v2-ops-workspace.is-diagnostic .v2-source-summary-card span {
+    margin-top: 3px;
+    font-size: 7px;
+  }
+
+  .v2-source-mobile-filter-sidesheet.semi-sidesheet-bottom .semi-sidesheet-inner {
+    height: 100dvh !important;
+    max-height: 100dvh;
+    border-radius: 0;
+  }
+
+  .v2-source-mobile-filter-sidesheet.semi-sidesheet-bottom .semi-sidesheet-header {
+    min-height: 52px;
+    padding: 6px 11px;
+  }
+
+  .v2-source-mobile-filter-sidesheet.semi-sidesheet-bottom .semi-sidesheet-body {
+    padding: 7px;
+  }
+
+  .v2-source-mobile-filter-sidesheet.semi-sidesheet-bottom .semi-sidesheet-footer {
+    padding: 6px 9px;
+  }
+
+  .v2-source-mobile-filter-title > span,
+  .v2-source-mobile-filter-section > header {
+    display: none;
+  }
+
+  .v2-source-mobile-filter-form {
+    gap: 6px;
+  }
+
+  .v2-source-mobile-filter-section {
+    gap: 6px;
+    padding: 8px;
+  }
+
+  .v2-source-mobile-filter-sidesheet .v2-source-candidates.v2-vehicle-candidate-list {
+    max-height: min(48dvh, 182px);
+  }
+}
+
 /*
  * Semi UI task-bar convergence for trajectory replay and single-vehicle
  * investigation. These routes keep their map-first information density while
@@ -18903,3 +19285,149 @@
     padding: 7px 8px;
   }
 }
+
+/*
+ * Keep the short-landscape operations evidence layout last in the cascade.
+ * The shared mobile workspace rules intentionally favor portrait stacking;
+ * these few geometry rules restore the landscape cockpit after those defaults.
+ */
+@media (max-width: 900px) and (max-height: 480px) and (orientation: landscape) {
+  .v2-ops-page {
+    display: grid;
+    height: 100%;
+    min-height: 0;
+    grid-template-columns: minmax(196px, .42fr) minmax(0, 1fr);
+    grid-template-rows: 44px minmax(0, 1fr);
+    gap: 5px;
+    overflow: hidden;
+    padding: 5px 6px 6px;
+  }
+
+  .v2-ops-page > .v2-ops-command-bar,
+  .v2-ops-page > .v2-ops-navigation {
+    height: 44px;
+    min-height: 44px;
+  }
+
+  .v2-ops-page > .v2-ops-navigation {
+    position: static;
+    grid-column: 2;
+    grid-row: 1;
+    padding: 3px;
+  }
+
+  .v2-ops-navigation .v2-ops-tabs.v2-segmented-tabs {
+    height: 36px;
+    min-height: 36px;
+  }
+
+  .v2-ops-page > .v2-ops-workspace {
+    width: 100%;
+    height: 100%;
+    min-height: 0;
+    grid-column: 1 / -1;
+    grid-row: 2;
+    flex: none;
+    overflow: auto;
+  }
+
+  .v2-ops-page > .v2-ops-workspace.is-reconciliation {
+    overflow: hidden;
+  }
+
+  .v2-ops-workspace.is-health .v2-ops-metric-rail {
+    display: grid;
+    grid-template-columns: 1.12fr repeat(4, minmax(0, 1fr));
+    overflow: hidden;
+  }
+
+  .v2-ops-workspace.is-health .v2-ops-metric,
+  .v2-ops-workspace.is-health .v2-ops-metric:first-child {
+    min-width: 0;
+    min-height: 78px;
+    grid-column: auto;
+    border-top: 0;
+    border-right: 0;
+    border-left: 1px solid #e7edf4;
+    padding: 8px 9px 7px;
+  }
+
+  .v2-ops-workspace.is-health .v2-ops-metric:first-child {
+    border-left: 0;
+  }
+
+  .v2-ops-workspace.is-health .v2-ops-metric small {
+    font-size: 8px;
+  }
+
+  .v2-ops-workspace.is-health .v2-ops-metric strong,
+  .v2-ops-workspace.is-health .v2-ops-metric:first-child strong {
+    margin: 6px 0 5px;
+    font-size: 15px;
+  }
+
+  .v2-ops-workspace.is-health .v2-ops-metric:first-child strong {
+    font-size: 16px;
+  }
+
+  .v2-ops-workspace.is-health .v2-ops-metric span {
+    font-size: 8px;
+    line-height: 1.3;
+  }
+
+  .v2-ops-workspace.is-health .v2-ops-metric::after {
+    right: 9px;
+    left: 9px;
+    height: 2px;
+  }
+
+  .v2-ops-workspace.is-diagnostic {
+    display: grid;
+    min-height: 0;
+    grid-template-columns: minmax(176px, .34fr) minmax(0, 1fr);
+    grid-template-rows: minmax(0, 1fr);
+    align-items: stretch;
+    gap: 5px;
+    overflow: hidden;
+  }
+
+  .v2-ops-workspace.is-diagnostic > .v2-source-mobile-discovery {
+    min-height: 0;
+    align-content: start;
+    grid-column: 1;
+    grid-row: 1;
+  }
+
+  .v2-ops-workspace.is-diagnostic .v2-source-mobile-discovery > .v2-mobile-filter-toggle.semi-button {
+    height: 50px;
+    min-height: 50px;
+  }
+
+  .v2-ops-workspace.is-diagnostic > .v2-source-diagnostic.semi-card {
+    height: 100%;
+    min-height: 0;
+    grid-column: 2;
+    grid-row: 1;
+    overflow: auto;
+  }
+
+  .v2-ops-workspace.is-diagnostic > .v2-source-diagnostic > .semi-card-body {
+    height: 100%;
+    min-height: 0;
+  }
+
+  .v2-ops-workspace.is-diagnostic .v2-source-empty.semi-empty,
+  .v2-ops-workspace.is-diagnostic .v2-source-loading {
+    height: calc(100% - 42px);
+    min-height: 120px;
+    padding: 12px;
+  }
+
+  .v2-ops-workspace.is-diagnostic .v2-source-empty .semi-empty-image {
+    display: none;
+  }
+
+  .v2-ops-workspace.is-diagnostic .v2-source-summary.semi-card-group {
+    grid-template-columns: repeat(4, minmax(0, 1fr));
+  }
+}