/* In-content promo banner, and the "Keep reading" cross-link strip.
 *
 * EVERY var() CARRIES A LITERAL FALLBACK. This is not stylistic: both components
 * are injected into the 18 hand-written blog posts, which load blog.css ONLY and
 * therefore have none of site.css's :root tokens. radar.css's header records what
 * happens otherwise — the component "rendered as a white input on a dark page,
 * functionally fine and visibly broken. No test would have caught that." A build
 * assertion now checks the stylesheet SHIPS with the component; only the fallbacks
 * make it render once it does.
 *
 * The promo lands INSIDE .prose (mid-article), so it needs no width container of its
 * own on the post pages — .container-narrow already caps it at 780px. On /blog/ it
 * sits in .page, also capped.
 */
.promo {
  display: block;
  margin: 40px 0;
  padding: 24px 26px;
  background: var(--card-mist, rgba(15, 20, 35, 0.60));
  border: 1px solid var(--glass-edge, rgba(255, 255, 255, 0.06));
  border-left: 3px solid var(--plasma-cyan, #63d8e8);
  border-radius: var(--radius-card, 20px);
}
.promo__kicker {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint, rgba(255, 255, 255, 0.38));
}
.promo__heading {
  margin: 0 0 10px;
  font-size: 19px;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text, rgba(255, 255, 255, 0.92));
}
.promo__lead {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-dim, rgba(255, 255, 255, 0.62));
}
.promo__live {
  margin: 0 0 14px;
  font-size: 13px;
  color: var(--vector-green, rgba(140, 230, 160, 0.95));
}
.promo .promo__live a { color: inherit; text-decoration-color: currentColor; }
.promo__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin: 0;
}
/* .promo PREFIXED, and that is load-bearing. The banner is injected INSIDE .prose
   on the 18 blog posts, and blog.css:289 has `.prose a { color: cyan; underline }`
   at specificity 0,1,1 — which beats a bare `.promo__cta` at 0,1,0. Unprefixed,
   the CTA rendered cyan underlined text on a white button: legible-ish, wrong, and
   invisible to every test. Caught by looking at it in a browser. */
.promo .promo__cta {
  display: inline-block;
  padding: 11px 24px;
  border-radius: var(--radius-cta, 14px);
  background: var(--text, rgba(255, 255, 255, 0.92));
  color: #0a0f1a;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}
.promo .promo__alt {
  font-size: 14px;
  color: var(--plasma-cyan, #63d8e8);
  text-decoration: underline;
  text-decoration-color: rgba(180, 220, 240, 0.35);
  text-underline-offset: 3px;
}

/* === Keep reading — generated per page, so this one is not a shared include === */
.keep-reading {
  margin: 44px 0 8px;
  padding: 22px 24px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-edge, rgba(255, 255, 255, 0.06));
  border-radius: var(--radius-card, 20px);
}
.keep-reading__heading {
  margin: 0 0 12px;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint, rgba(255, 255, 255, 0.38));
}
.keep-reading__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}
.keep-reading .keep-reading__list a { color: var(--plasma-cyan, #63d8e8); }
.keep-reading__kind {
  display: inline-block;
  min-width: 74px;
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-faint, rgba(255, 255, 255, 0.38));
}