/* =========================================================================
   ERA SWITCHER — subtle corner hint + simple flash transition
   The hint is a fixed-position button in the bottom-right corner.
   ========================================================================= */

button.era-hint {
  position: fixed !important;
  bottom: 14px !important;
  right: 16px !important;
  top: auto !important;
  left: auto !important;
  z-index: 9997 !important;
  display: inline-block !important;
  margin: 0 !important;
  font-family: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace !important;
  font-size: 11px !important;
  letter-spacing: 0.08em !important;
  padding: 4px 8px !important;
  background: transparent !important;
  border: 0 !important;
  color: currentColor !important;
  cursor: pointer !important;
  opacity: 0.35;
  transition: opacity 140ms ease;
  text-decoration: underline !important;
  text-decoration-thickness: 1px !important;
  text-underline-offset: 3px !important;
  box-shadow: none !important;
  pointer-events: auto !important;
}
button.era-hint:hover,
button.era-hint:focus-visible {
  opacity: 1;
  outline: none;
}
button.era-hint:focus-visible {
  outline: 1px dotted currentColor !important;
  outline-offset: 2px;
}

/* ----------------- Simple fade transition ----------------- */

.era-fade {
  position: fixed;
  inset: 0;
  z-index: 9998;
  background: #000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 260ms ease;
}
body.is-transitioning .era-fade {
  opacity: 1;
}