/* V274 — Restore viewport-fixed student drawer in light mode.
   V257 added backdrop-filter to .student-global-header only in light mode. A backdrop-filter
   creates a containing block for fixed descendants in Chromium/WebView, so the fixed
   .student-global-nav became relative to the ~70px header instead of the viewport and was
   clipped to roughly one row. Dark mode had no backdrop-filter, which is why it stayed correct.
   Keep the light colors/shadow, but remove only the containing-block trigger on narrow screens. */

@media (max-width: 980px) {
  html[data-theme="light"] .student-global-header {
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
  }
}