/* ============================================================
   sponsor-slot.css
   CLS-safe slot styling. Reserved heights match IAB ad units so
   layout never shifts when a creative loads (or fails to load).

   Pair with sponsor-slot.js. Slot DOM is:

     <div class="sponsor-slot"
          data-slot-id="..."
          data-slot-type="leaderboard|mrec|native|mobile-banner"
          data-slot-page="page.html"
          data-allow-adsense="true|false"
          data-adsense-slot="1234567890"></div>
   ============================================================ */

.sponsor-slot {
  display: block;
  position: relative;
  overflow: hidden;
  margin: 16px auto;
  background: #f5f5f5;
  text-align: center;
  /* Default fill state: empty. Overridden inline by JS once filled.
     A persistent very-light gray box keeps debugging easy without
     looking like broken content. */
}

/* Hide slots that have data-fill-state="empty" once JS has run AND
   we are NOT in a test/preview context. Comment this rule out during
   QA to see all empty slots. */
.sponsor-slot[data-fill-state="empty"] {
  display: none;
}

/* ─── Reserved heights per slot type (CLS guard) ───────────── */
.sponsor-slot[data-slot-type="mobile-banner"] {
  min-height: 50px;
  width: 100%;
  max-width: 320px;
}

.sponsor-slot[data-slot-type="leaderboard"] {
  min-height: 90px;
  width: 100%;
  max-width: 728px;
}

.sponsor-slot[data-slot-type="mrec"] {
  min-height: 250px;
  width: 300px;
}

.sponsor-slot[data-slot-type="native"] {
  min-height: 280px;
  width: 100%;
  max-width: 360px;
}

/* Mobile responsive — leaderboard reserves slightly more height to
   accommodate two-line creative copy on narrow viewports if a
   responsive AdSense unit is rendered. The JS hides .leaderboard on
   <768px by default, but if a sponsor opts to show it (via override),
   the height is right. */
@media (max-width: 767px) {
  .sponsor-slot[data-slot-type="leaderboard"] {
    min-height: 100px;
  }
  .sponsor-slot[data-slot-type="mrec"] {
    width: 100%;
    max-width: 300px;
  }
}

/* ─── Sponsored / Advertisement label (IAB transparency) ──── */
.sponsor-slot__label {
  position: absolute;
  top: 4px;
  right: 6px;
  z-index: 2;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 9px;
  font-weight: 500;
  color: #888;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: rgba(255, 255, 255, 0.85);
  padding: 1px 4px;
  border-radius: 2px;
  pointer-events: none;
}

/* ─── Image creatives ──────────────────────────────────────── */
.sponsor-slot a {
  display: block;
  width: 100%;
  height: 100%;
  text-decoration: none;
  color: inherit;
}

.sponsor-slot a > img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: contain;
}

/* ─── Native creatives ─────────────────────────────────────── */
.sponsor-slot__native {
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  height: 100%;
}

.sponsor-slot__native-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  flex-shrink: 0;
}

.sponsor-slot__native-body {
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  flex: 1;
  text-align: left;
}

.sponsor-slot__native-headline {
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  margin: 0 0 6px;
  color: #222;
  line-height: 1.25;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.sponsor-slot__native-desc {
  font-size: 0.8125rem;
  color: #666;
  margin: 0 0 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.sponsor-slot__native-cta {
  font-size: 0.85rem;
  font-weight: 600;
  color: #1a73e8;
  align-self: flex-start;
  margin-top: auto;
}

/* ─── Optional sticky-bottom for mobile-banner ─────────────── */
.sponsor-slot[data-sticky-bottom="true"][data-slot-type="mobile-banner"] {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  margin: 0;
  background: #fff;
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.12);
}