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@@ -6,6 +6,33 @@ Newest entries at the top. Group by phase/wave header (mirroring `PLAN.md` / `CM
 
 ---
 
+## Phase 2 — Product surface: player and theming
+
+**Status:** Desktop AudioPlayerBar redesign landed on 2026-06-04.
+
+### Desktop AudioPlayerBar — migrate to MudBlazor theme system
+
+**Landed 2026-06-04.**
+
+Desktop branch of `AudioPlayerBar.razor` migrated off dead CSS palette tokens (`--charleston-*`, `--lowcountry-*`, `--deepdrft-theme-*` — none of which are defined in the live stylesheet) onto the active MudBlazor theme system. This was simultaneously a bug fix (player styling broken against the current palette) and a structural redesign.
+
+**Structural changes:**
+- `.player-backdrop` div replaced with `MudPaper Elevation="8"` — surface colour now derives from `--mud-palette-surface` via the live theme, and flips automatically with dark mode (off-white in light, navy in dark).
+- Three new zone sub-components extracted: `PlayerTransportZone` (left transport cluster), `PlayerSeekZone` (centre seek+spectrum, owns the seek pointer-handler logic), `PlayerWindowControls` (minimize/close buttons). These remove duplication (seek handlers no longer inline-copied) and name the layout zones explicitly.
+- `MudStack` replaces all raw `<div class="d-flex gap-*">` throughout the desktop branch and sub-components (`PlayerControls`, `VolumeControls`, `TimestampLabel`).
+- `SpectrumVisualizer` bar colour fixed: `var(--mud-palette-primary)` replaces the undefined `--deepdrft-theme-secondary` token.
+- Minimized dock replaced with `MudFab Color="Color.Primary"` — rounded button picking up themed primary colour with no hand-rolled gradient.
+- `AudioPlayerBar.razor.css` shrunk from ~176 lines (mostly dead-token theming) to ~74 lines (geometry and positioning only).
+
+**Scope:**
+- Desktop branch only (`@if (_isDesktop)`). Mobile branch unchanged by design.
+- Build clean: 0 errors, 0 new warnings.
+
+**Notes for future work:**
+- Mobile branch is also currently broken against the live palette for the same reason (spectrum bars + shared dead-token rules have no colour). A companion migration for mobile is implied but out of scope for this task — marked for future Phase 2 work.
+
+---
+
 ## Deployment Infrastructure
 
 **Status:** CD pipeline infrastructure landed on 2026-06-04.