/* Shared AdSense placement styling. Empty placements stay hidden until a real ad-unit slot ID is configured. */
.adsense-placement[hidden] {
  display: none !important;
}

.adsense-placement {
  width: 100%;
  max-width: 970px;
  box-sizing: border-box;
  margin: 24px auto;
  padding: 0 16px;
  text-align: center;
  overflow: hidden;
}

.adsense-placement--top {
  margin-top: 0;
  margin-bottom: 28px;
}

.adsense-placement--footer {
  margin-top: 28px;
  margin-bottom: 12px;
  padding-top: 24px;
  border-top: 1px solid rgba(128, 112, 96, 0.18);
}

.adsense-placement::before {
  content: "Advertisement";
  display: block;
  margin-bottom: 8px;
  color: #8b8178;
  font: 600 10px/1.2 'IBM Plex Mono', monospace;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.adsense-placement .adsbygoogle {
  display: block;
  min-height: 90px;
  width: 100%;
}

@media (max-width: 640px) {
  .adsense-placement {
    padding: 0 12px;
  }

  .adsense-placement--footer {
    padding-top: 18px;
  }
}

/* Addsterra / external learning-ad placements */
.external-ad-zone {
  width: 100%;
  max-width: 970px;
  margin: 28px auto;
  padding: 18px 16px;
  box-sizing: border-box;
  text-align: center;
  border-top: 1px solid rgba(128, 112, 96, 0.16);
  border-bottom: 1px solid rgba(128, 112, 96, 0.16);
}
.external-ad-link {
  display: inline-block;
  margin-bottom: 18px;
  font-size: 13px;
  font-weight: 600;
}
.external-ad-unit {
  display: flex;
  justify-content: center;
  align-items: center;
  max-width: 100%;
  min-height: 20px;
  margin: 20px auto;
  overflow: hidden;
}
.external-ad-unit--skyscraper {
  min-height: 250px;
}
@media (max-width: 760px) {
  .external-ad-unit--leaderboard,
  .external-ad-unit--banner {
    transform-origin: top center;
  }
}