/* Accessibility core — skip link, visible keyboard focus, screen-reader text,
   and a calmer motion mode. Uses the app's theme tokens where they exist. */
:root{
  --ah-focus:#12a876;
  --ah-focus-ring:rgba(18,168,118,.45);
}

/* Screen-reader-only, but focusable (used by the skip link). */
.ah-sr-only{
  position:absolute!important; width:1px; height:1px; padding:0; margin:-1px;
  overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap; border:0;
}

/* Skip link: hidden off-screen until a keyboard user focuses it. */
.ah-skip-link{
  position:fixed; top:8px; left:8px; z-index:10000;
  transform:translateY(-160%);
  padding:10px 16px; border-radius:12px;
  background:var(--ah-brand-fill,#12a876); color:#fff;
  font:600 14px/1.4 system-ui,-apple-system,"Noto Sans Bengali",sans-serif;
  text-decoration:none; box-shadow:0 8px 24px rgba(9,60,45,.28);
  transition:transform .15s ease;
}
.ah-skip-link:focus,
.ah-skip-link:focus-visible{ transform:translateY(0); outline:3px solid #fff; outline-offset:2px; }

/* A single, consistent visible focus ring for anything reachable by keyboard.
   Never remove the outline elsewhere without replacing it with something. */
:where(a,button,input,select,textarea,summary,[tabindex],[role="button"],[role="tab"],[role="option"]):focus-visible{
  outline:3px solid var(--ah-focus);
  outline-offset:2px;
  border-radius:6px;
}
/* Underlying focused elements that already draw their own ring keep theirs. */
:where(input,textarea,select):focus-visible{ outline-offset:1px; }

/* The injected main-content target must not show a ring of its own. */
#ah-main-content:focus{ outline:none; }

/* The live region must never be seen. */
#ah-live-status{ position:absolute!important; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0); }

/* Calmer motion for visitors who ask for it (set by a11y-core.js on <html>). */
html.ah-reduce-motion *,
html.ah-reduce-motion *::before,
html.ah-reduce-motion *::after{
  animation-duration:.001ms!important;
  animation-iteration-count:1!important;
  transition-duration:.001ms!important;
  scroll-behavior:auto!important;
}