/* ═══════════════════════════════════════════════════════════════
   HUNT APP — CONTROL LAYER (retired material redesign, 2026-09-18)
   ================================================================
   This file previously applied an opaque "physical key material"
   redesign (3D gradients, hard drop shadows) to .glass-btn,
   .shortcut-btn and .mapctl. It visually FOUGHT the app's glass
   design language (frosted translucent controls) — buttons looked
   opaque, plasticky and identical everywhere, hiding the newer
   glass treatment in index.html.

   Per James's direction the app keeps ONE coherent look: the
   frosted glass control system that lives in index.html's main
   <style>. This layer is now intentionally inert — kept only so
   the <link> in index.html doesn't 404 (stale SW caching guard).

   Do NOT re-add opaque gradient/button overrides here without
   removing the glass system first.
   ═══════════════════════════════════════════════════════════════ */