feat(p12-w4): ambient visualizer slot on scaffold + popover controls on all detail hosts

Add optional Ambient slot to ReleaseDetailScaffold (full-bleed layer behind content; absent = no regression). Cut mounts it + popover; Session mounts the engine directly behind its hero; Mix swaps its inline knob-bar for the lava-lamp popover.
2026-06-17 12:11:03 -04:00
parent 9009f2c8cf
commit 955182d6da
7 changed files with 87 additions and 32 deletions
@@ -6,3 +6,20 @@
    padding-top: 2rem;
    padding-bottom: 4rem;
 }
+
+/* Lifts the session content above the fixed full-bleed waveform layer (z-index: 0). Session mounts the
+   visualizer directly (it does not compose ReleaseDetailScaffold), so the foreground stacking context
+   lives here rather than on the scaffold (Phase 12 §3e option b). The class lands on the MudContainer's
+   rendered root, so ::deep is required to reach it. */
+::deep .session-detail-foreground {
+    position: relative;
+    z-index: 1;
+}
+
+/* Back link (left) | lava-lamp popover trigger (right) on one row, mirroring the scaffold's top row.
+   The popover icon clears the hero overlay below and the share/play affordances overlaid on it. */
+.session-detail-top-row {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+}