{# Reusable compact sidebar promotion card. Renders nothing without an ad.
   Pass: ad. #}
{% if ad %}
<div class="ad-sidebar-card" aria-label="Sponsored content">
  <span class="ad-sponsored-badge"><i class="bi bi-megaphone" aria-hidden="true"></i> Sponsored</span>
  <div class="ad-sidebar-icon" aria-hidden="true">
    {% if ad.image_path %}
      <img src="{{ ad.image_path }}" alt="" loading="lazy" decoding="async">
    {% else %}
      <i class="bi {{ ad.icon or 'bi-stars' }}"></i>
    {% endif %}
  </div>
  <div class="ad-sidebar-title">{{ ad.title }}</div>
  {% if ad.description %}<p class="ad-sidebar-desc">{{ ad.description }}</p>{% endif %}
  {% if ad.redirect_url %}
    <a class="btn btn-sm btn-outline-primary w-100"
       href="{{ url_for('advertisements.click', public_id=ad.public_id) }}"
       target="_blank" rel="noopener sponsored">Explore</a>
  {% endif %}
  {% if current_user.is_authenticated and not show_premium_badge(current_user) %}
    <a class="ad-premium-upsell" href="{{ url_for('premium.index') }}">
      <i class="bi bi-star-fill" aria-hidden="true"></i> Premium members enjoy an ad-free experience
    </a>
  {% endif %}
</div>
{% endif %}