web theme: flatten the dark-mode gradients (lower blob alphas + tighter glass sheen)

agents.md

@@ -43,7 +43,7 @@ frosted-glass **web** site, and an alternate KDE/Plasma **desktop simulation**
   utilities in the components (Tailwind is present via PostCSS but the look is
   hand-written CSS).
 - Path alias: `@/*` → `src/*`.
-- Version: `2.2.3` (see `package.json`).
+- Version: `2.2.4` (see `package.json`).
 
 ### Scripts
 ```bash
@@ -151,6 +151,11 @@ Themes: `web` = default frosted-glass website (sidebar + content, light/dark),
   `backdrop-filter: blur(28px) saturate(180%)`. The page blobs behind the panels
   are `.web-bg` (a fixed radial-gradient layer at `z-index: 0`; `.web-root` sits
   at `z-index: 1`).
+- The **dark scheme is deliberately flatter** than light: much lower `--blob-*`
+  alphas (~0.09 vs ~0.30) and a tighter `--glass-hi`/`--glass-lo` pair. White on
+  near-black reads far stronger than white on a pale page, so copying the light
+  alphas makes dark look far more gradient-heavy. Tune the two schemes
+  separately, not by eye against each other.
 - Interactive surfaces (`.web-ctl`, pills, `.service-button`, `.social-button`,
   `.project-card`, `.gym-item`, `.contribution-entry`, `.heatmap-container`) read
   the `--btn-bg` / `--btn-bg-hi` / `--btn-border` / `--btn-shadow` tokens with