{#-
  FR-013 degradation banner, shared by every page via base.html. Renders
  zero bytes unless the context carries a non-empty embed_banner (the
  embed_ladder.degradation_banner() line: rung / reason / remediation), so
  healthy pages stay byte-identical. Inline styles reuse the badge-warn
  recipe and the theme's --warn token (dark-theme safe) because the banner
  must live in the templates only.
-#}
{% if embed_banner %}<div class="embed-banner" role="status" style="margin: 0 0 1rem; padding: 0.6rem 0.9rem; border: 1px solid color-mix(in srgb, var(--warn) 32%, transparent); border-radius: var(--radius); background: color-mix(in srgb, var(--warn) 12%, transparent); color: var(--warn); font-size: 0.85rem; font-weight: 600;">{{ embed_banner }}</div>
{% endif %}