.wh-pdf-preview-card {
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: #fff;
  padding: 24px;
  margin: 24px 0;
}

.wh-pdf-preview-head {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 10px 16px;
  margin-bottom: 18px;
}

.wh-pdf-preview-title {
  margin: 0;
  font-size: 24px;
  line-height: 1.35;
}

.wh-pdf-preview-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  font-size: 13px;
  color: #666;
}

.wh-pdf-preview-source-label {
  margin-bottom: 14px;
  font-size: 14px;
  color: #666;
}

.wh-pdf-preview-grid {
  display: grid;
  grid-template-columns: repeat(var(--wh-pdf-columns, 2), minmax(0, 1fr));
  gap: 18px;
}

.wh-pdf-preview-item {
  margin: 0;
}

.wh-pdf-preview-item a {
  display: block;
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: #f7f7f7;
}

.wh-pdf-preview-item img {
  display: block;
  width: 100%;
  height: auto;
}

.wh-pdf-preview-item figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: #666;
}

.wh-pdf-preview-fallback iframe {
  width: 100%;
  min-height: 720px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: #f7f7f7;
}

.wh-pdf-preview-actions {
  margin-top: 22px;
}

.wh-pdf-preview-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  text-decoration: none;
  color: #fff;
  background: #0f5ea8;
  font-weight: 700;
}

.wh-pdf-preview-download:hover,
.wh-pdf-preview-download:focus {
  color: #fff;
  opacity: 0.9;
}

@media (max-width: 767px) {
  .wh-pdf-preview-card {
    padding: 18px;
  }

  .wh-pdf-preview-title {
    font-size: 20px;
  }

  .wh-pdf-preview-grid {
    grid-template-columns: 1fr;
  }

  .wh-pdf-preview-fallback iframe {
    min-height: 480px;
  }
}