.ab-preview-download-wrap {
  max-width: 720px;
  margin: 50px auto;
  padding: 30px 20px;
  text-align: center;
  font-family: inherit;
}

.ab-preview-download-wrap--actions {
  margin-top: 0;
  padding-top: 24px;
}

.ab-preview-download-wrap .ab-book-cover {
  margin-bottom: 24px;
}

.ab-preview-download-wrap .ab-book-cover img {
  max-width: 220px;
  border-radius: 6px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.18);
  display: inline-block;
}

.ab-preview-download-wrap h1.ab-book-title {
  font-size: 24px;
  margin-bottom: 10px;
  color: #333;
}

.ab-preview-download-wrap .ab-book-meta {
  margin-bottom: 20px;
  color: #777;
  font-size: 14px;
}

.ab-preview-download-wrap .ab-book-meta a {
  color: #999;
  text-decoration: underline;
}

.ab-preview-download-wrap .ab-preview-badge {
  display: inline-block;
  background: #2980b9;
  color: #fff;
  border-radius: 20px;
  padding: 4px 16px;
  font-size: 13px;
  margin-bottom: 10px;
}

.ab-preview-download-wrap .ab-preview-note {
  display: block;
  width: 100%;
  max-width: 520px;
  margin: 0 auto 18px;
  color: #555;
  font-size: 14px;
  line-height: 1.5;
  text-align: center;
}

.ab-preview-download-wrap .ab-preview-actions {
  margin-top: 0;
}

.ab-preview-download-wrap .ab-btn-download {
  display: inline-block;
  background: #2980b9;
  color: #fff !important;
  padding: 14px 40px;
  border-radius: 5px;
  font-size: 18px;
  font-weight: bold;
  text-decoration: none !important;
  transition: background 0.2s;
  margin-bottom: 16px;
}

.ab-preview-download-wrap .ab-btn-download:hover {
  background: #21618c;
  color: #fff !important;
}

.ab-preview-download-wrap .ab-btn-book-page {
  display: inline-block;
  margin-top: 8px;
  color: #555;
  font-size: 14px;
  text-decoration: underline;
}

/* عارض PDF — iframe (محرك المتصفح / PDFium) */
.ab-pdf-viewer-section {
  width: 100%;
  margin: 0 0 8px;
  padding: 0;
}

.ab-pdf-viewer-wrap {
  width: 100%;
  max-width: 100%;
  margin: 0;
  border-top: 1px solid #d8dee6;
  border-bottom: 1px solid #d8dee6;
  overflow: hidden;
  background: #525659;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

.ab-pdf-viewer-frame {
  display: block;
  width: 100%;
  max-width: 100%;
  height: calc(100vh - 58px);
  min-height: 780px;
  border: 0;
  background: #525659;
}

.ab-pdf-viewer-fallback {
  margin: 0;
  padding: 8px 12px;
  text-align: center;
  font-size: 13px;
  background: #eef1f5;
  border-top: 1px solid #d8dee6;
}

.ab-pdf-viewer-fallback a {
  color: #2980b9;
  text-decoration: underline;
}

/* Safari iOS — فتح في العارض الأصلي (كل الصفحات) */
.ab-pdf-viewer-ios {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 320px;
  padding: 28px 20px 32px;
  background: linear-gradient(180deg, #5a6068 0%, #525659 100%);
  color: #fff;
  text-align: center;
}

.ab-pdf-viewer-ios-cover {
  margin-bottom: 16px;
}

.ab-pdf-viewer-ios-cover img {
  max-width: 140px;
  border-radius: 6px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.ab-pdf-viewer-ios-title {
  margin: 0 0 12px;
  font-size: 18px;
  font-weight: bold;
  color: #fff;
}

.ab-pdf-viewer-ios-note {
  margin: 0 auto 20px;
  max-width: 420px;
  font-size: 14px;
  line-height: 1.6;
  color: #e8ecf0;
}

.ab-pdf-viewer-ios-open {
  display: inline-block;
  background: #2980b9;
  color: #fff !important;
  padding: 14px 28px;
  border-radius: 6px;
  font-size: 17px;
  font-weight: bold;
  text-decoration: none !important;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.ab-pdf-viewer-ios-open:hover,
.ab-pdf-viewer-ios-open:focus {
  background: #21618c;
  color: #fff !important;
}

@media (max-width: 640px) {
  .ab-preview-download-wrap {
    padding: 20px 12px;
    margin-top: 24px;
  }

  .ab-pdf-viewer-section {
    max-width: 100vw;
    overflow-x: hidden;
  }

  .ab-pdf-viewer-wrap {
    max-width: 100vw;
    overflow-x: hidden;
  }

  .ab-pdf-viewer-frame {
    width: 100%;
    max-width: 100%;
    height: 62dvh;
    min-height: 0;
  }

  .ab-pdf-viewer-ios {
    min-height: 280px;
    padding: 24px 16px 28px;
  }

  .ab-pdf-viewer-ios-note {
    font-size: 13px;
  }
}