/* === AD SLOT — generic === */
.ad-slot {
  font-family: var(--font-sans-cjk);
}

/* Placeholder framing (used when no real ad configured) */
.ad-placeholder {
  border: 2px dashed var(--brand-accent);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-3);
  text-align: center;
  background-color: transparent;
  background-image: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 12px,
    rgba(168, 124, 62, 0.06) 12px,
    rgba(168, 124, 62, 0.06) 24px
  );
  transition: border-color 200ms ease;
}
@media (prefers-color-scheme: dark) {
  .ad-placeholder {
    background-image: repeating-linear-gradient(
      45deg,
      transparent,
      transparent 12px,
      rgba(196, 150, 86, 0.08) 12px,
      rgba(196, 150, 86, 0.08) 24px
    );
  }
}
[data-theme="light"] .ad-placeholder {
  background-image: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 12px,
    rgba(168, 124, 62, 0.06) 12px,
    rgba(168, 124, 62, 0.06) 24px
  );
}
[data-theme="dark"] .ad-placeholder {
  background-image: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 12px,
    rgba(196, 150, 86, 0.08) 12px,
    rgba(196, 150, 86, 0.08) 24px
  );
}
.ad-placeholder:hover {
  border-color: var(--brand-primary);
}
.ad-tag {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  background: var(--bg-subtle);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-2);
}
.ad-placeholder-title {
  font-family: var(--font-serif-cjk);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--brand-primary);
  margin: 0 0 var(--space-2);
}
@media (prefers-color-scheme: dark) {
  .ad-placeholder-title { color: var(--brand-accent); }
}
[data-theme="dark"] .ad-placeholder-title { color: var(--brand-accent); }
.ad-placeholder-body {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin: 0 0 var(--space-3);
  line-height: 1.6;
}
.ad-placeholder-cta {
  display: inline-block;
  font-size: 0.9rem;
  color: var(--brand-accent);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}
.ad-placeholder-cta:hover {
  color: var(--brand-primary);
}

/* === Per-slot sizing === */

/* SIDEBAR — appears inside .article-sidebar; compact */
.ad-slot-sidebar { margin-bottom: var(--space-3); }
.ad-slot-sidebar .ad-placeholder { padding: var(--space-3) var(--space-2); }
.ad-slot-sidebar .ad-placeholder-title { font-size: 1rem; }
.ad-slot-sidebar .ad-placeholder-body { font-size: 0.85rem; }

/* IN-FEED — looks like a card so it fits grid; spans 1 grid cell on desktop.
   Stretches to match the row height of neighbouring .post-card so rows align. */
.ad-slot-infeed {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding: var(--space-4);
}
/* "廣告" pill at the top, mimicking .card-cat */
.ad-cat {
  display: inline-block;
  align-self: flex-start;
  background: var(--text-muted);
  color: #fff;
  font-family: var(--font-sans-cjk);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-3);
}
@media (prefers-color-scheme: dark) {
  .ad-cat { background: var(--text-secondary); }
}
[data-theme="dark"] .ad-cat { background: var(--text-secondary); }

.ad-slot-infeed .ad-placeholder {
  border-radius: var(--radius-md);
  flex: 1;
  /* min-height removed — let grid stretching match the neighbouring cards'
     natural height instead of forcing the whole row taller than cards. */
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: var(--space-4) var(--space-3);
}

/* BOTTOM — full-width, between article body and comments */
.ad-slot-bottom {
  margin: var(--space-6) auto;
  max-width: var(--max-content);
}
.ad-slot-bottom .ad-placeholder { padding: var(--space-4); }

/* IN-ARTICLE — inserted via shortcode mid-content */
.ad-slot-inarticle-wrap {
  margin: var(--space-5) auto;
  max-width: var(--max-content);
}
.ad-slot-inarticle .ad-placeholder { padding: var(--space-4); }