diff --git a/src/uix/eidos/ARCHETYPE_COHERENCE_AUDIT_2026-06-19.md b/src/uix/eidos/ARCHETYPE_COHERENCE_AUDIT_2026-06-19.md
index 7fcc53d20..c490d2324 100644
--- a/src/uix/eidos/ARCHETYPE_COHERENCE_AUDIT_2026-06-19.md
+++ b/src/uix/eidos/ARCHETYPE_COHERENCE_AUDIT_2026-06-19.md
@@ -31,6 +31,35 @@ consuman por defecto**.
 
 ---
 
+## ESTADO DE IMPLEMENTACIÓN — hand-off 2026-06-22
+
+**B2 COMPLETO — el plano de elevación adoptado por TODOS los overlays.** 4 commits (pusheados a
+`gita active-uix`): dropdown (`f80f2225`) · context-menu+menubar+navigation-menu (`009f5367`) ·
+link-preview+command (`be5396ce`) · select+combobox (`d578f832`). Patrón por overlay: el wrapper
+eidos del `Content` estampa `data-depth="overlay"`, se podan border/bg/shadow del CSS (+ tokens del
+recipe en dropdown/context-menu/select) y el arrow apunta a `--depth-overlay-surface`/`-border`.
+dialog/drawer ya en plano `modal` (2026-06-20).
+
+- **FUERA por diseño** (no son targets del plano): `tooltip` (el variant ES el material — solid
+  relleno / outline transparente / ghost con blur —, no énfasis sobre un trigger) · `listbox` (lista
+  inline `surface-default` sin sombra, no overlay flotante). Falsos positivos descartados:
+  carousel/grid-list/tree-view (bg de item) · color-picker/date-range-picker (contenido dentro de un
+  popover, que ya tiene el plano).
+- **select+combobox a plano-constante** (decisión del usuario): el variant tiñe solo el
+  trigger/control, ya NO la elevación del popup (se quitaron los overrides outline=raised /
+  ghost=transparent). Los 3 variants comparten la misma elevación overlay.
+- **Regresión propia** (pusheada en f80f2225, arreglada en 009f5367): menubar reusa
+  `[data-dropdown-menu-content]` → el prune del dropdown lo dejó sin elevación; arreglado estampando
+  `data-depth` en su wrapper eidos. Lección: al podar un selector/recipe compartido, grepear los
+  reusadores.
+- **Fila "Superficie / elevación" de §13 → `LIVE ✓`** + **lint anti-deriva** `elevation-plane.test.ts`
+  (cada `Content` de overlay debe estampar `data-depth`; tooltip/listbox excluidos por diseño).
+
+**Siguiente:** A2 (radio: `--radius-default`=sm + factor Radix + responder a `--scaling`) → A3 (estado
+hover/active + foco unificado).
+
+---
+
 ## ESTADO DE IMPLEMENTACIÓN — hand-off 2026-06-20
 
 **Hecho hoy (sobre el A1 de ayer):**
@@ -779,7 +808,7 @@ cada una — no son faltas per-componente, son los arquetipos que faltan):
 
 | eje | canon — QUÉ consumir | NO hacer (deriva) | estado |
 |---|---|---|---|
-| **Superficie / elevación** | `data-depth='overlay'\|'modal'\|…` → **bundle completo** (surface·shadow·halo·border·blur·z) | `surface-raised`/`-default` a dedo; `--{c}-overlay-z` propio; frost arbitrario | **A1** |
+| **Superficie / elevación** | `data-depth='overlay'\|'modal'\|…` → **bundle completo** (surface·shadow·halo·border·blur·z) | `surface-raised`/`-default` a dedo; `--{c}-overlay-z` propio; frost arbitrario | **LIVE ✓** (B2, 2026-06-22; guard `elevation-plane.test.ts`) |
 | **Radio** | `--radius-default`(=sm) / factor global + `[data-shape-nest]` concéntrico | `calc(--radius-md − space)` a mano; px fijo | **A2** |
 | **Estado (hover/active)** | `--state-{variant}-hover/active` (ghost = state-layer `currentColor`) | `color-mix` ad-hoc; 9 familias sueltas | **A3** |
 | **Foco** | `--focus-ring-*` + `--focus-ring-surface` + `outline` (HCM-safe); intent vía `data-intent` | tokens de foco propios; box-shadow que muere en HCM | **A3** |
diff --git a/src/uix/eidos/elevation-plane.test.ts b/src/uix/eidos/elevation-plane.test.ts
new file mode 100644
index 000000000..5b7aa5a92
--- /dev/null
+++ b/src/uix/eidos/elevation-plane.test.ts
@@ -0,0 +1,57 @@
+import { describe, it, expect } from 'vitest';
+import { existsSync, readFileSync } from 'node:fs';
+import { fileURLToPath } from 'node:url';
+import { dirname, join } from 'node:path';
+
+const COMPONENTS = join(dirname(fileURLToPath(import.meta.url)), 'components');
+
+/**
+ * Anti-drift guard for the elevation plane.
+ *
+ * ARCHETYPE_COHERENCE_AUDIT §13, axis "Superficie / elevación" → LIVE (B2 rollout,
+ * 2026-06-22). Every FLOATING OVERLAY takes its elevation (surface · border ·
+ * shadow · halo) from the `data-depth` plane — it does NOT paint its own
+ * surface/shadow. So each overlay's eidos `Content` wrapper MUST stamp
+ * `data-depth` for the plane to apply.
+ *
+ * This catches the menubar-class regression: a panel that reuses another part's
+ * content selector (`[data-dropdown-menu-content]`) but forgets `data-depth`
+ * silently loses its elevation the moment the donor recipe is pruned.
+ *
+ * EXCLUDED by design (NOT plane targets — see §13 / the 2026-06-22 hand-off):
+ *   tooltip — the variant IS the material (solid / outline / ghost), not emphasis;
+ *             the plane would flatten it.
+ *   listbox — an inline list (`surface-default`, no shadow), not a floating overlay.
+ */
+const OVERLAY_CONTENT_WRAPPERS: Record<string, readonly string[]> = {
+	'dropdown-menu': ['dropdown-menu-content.svelte', 'dropdown-menu-sub-content.svelte'],
+	'context-menu': ['context-menu-content.svelte', 'context-menu-sub-content.svelte'],
+	menubar: ['menubar-content.svelte'],
+	'navigation-menu': ['navigation-menu-content.svelte'],
+	popover: ['popover-content.svelte'],
+	'link-preview': ['link-preview-content.svelte'],
+	command: ['command.svelte'],
+	select: ['select-content.svelte'],
+	combobox: ['combobox-content.svelte'],
+	dialog: ['dialog-content.svelte'],
+	drawer: ['drawer-content.svelte']
+};
+
+describe('elevation plane adoption (B2 anti-drift guard)', () => {
+	for (const [component, files] of Object.entries(OVERLAY_CONTENT_WRAPPERS)) {
+		for (const file of files) {
+			it(`${component} · ${file} stamps data-depth (consumes the elevation plane)`, () => {
+				const path = join(COMPONENTS, component, file);
+				expect(
+					existsSync(path),
+					`${file} not found — wrapper renamed? Update OVERLAY_CONTENT_WRAPPERS.`
+				).toBe(true);
+				const src = readFileSync(path, 'utf8');
+				expect(
+					/data-depth=/.test(src),
+					`${file} must stamp data-depth="overlay|modal" so the elevation plane paints the panel.`
+				).toBe(true);
+			});
+		}
+	}
+});