/* ============================================================
   demo.css — shared styles for the sticky env banner and the
   interactive demo component embedded in index2.html.

   The per-env colors (background, text, border) live in
   theme-development.css and theme-staging.css. This file owns
   the structural rules that are env-agnostic.
   ============================================================ */

/* ---- Sticky environment banner ---- */
/* Hidden by default; theme-*.css sets display:block on dev/staging. */
.page-env-banner {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  height: 40px;
  line-height: 40px;
  padding: 0 20px;
  text-align: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}