/* ===== CSS lo trinh Phan tich du lieu ung dung — namespace .ptdl-* ===== */
.ptdl-wrap { max-width: 900px; margin: 0 auto; line-height: 1.7; }

.ptdl-tldr {
  background: #f4f7fb; border-left: 4px solid #2563eb; border-radius: 8px;
  padding: 16px 20px; margin: 24px 0; font-size: 0.98em;
}
.ptdl-tldr strong { color: #1e3a8a; }

.ptdl-badges { display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0; }
.ptdl-badge {
  background: #eef2ff; color: #3730a3; border-radius: 999px;
  padding: 6px 14px; font-size: 0.85em; font-weight: 600;
}

.ptdl-hero { margin: 0 0 24px; border-radius: 12px; overflow: hidden; }
.ptdl-hero svg, .ptdl-hero img { width: 100%; height: auto; display: block; }

.ptdl-figure { margin: 28px 0; text-align: center; }
.ptdl-figure svg { max-width: 100%; height: auto; }
.ptdl-figure figcaption { font-size: 0.85em; color: #6b7280; margin-top: 8px; }

.ptdl-video { position: relative; width: 100%; padding-top: 56.25%; margin: 24px 0; border-radius: 10px; overflow: hidden; }
.ptdl-video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

.ptdl-checklist { background: #f0fdf4; border-radius: 8px; padding: 18px 22px; margin: 24px 0; }
.ptdl-checklist li { margin-bottom: 8px; }

.ptdl-remember { background: #fffbeb; border-radius: 8px; padding: 18px 22px; margin: 24px 0; border-left: 4px solid #d97706; }

.ptdl-faq-item { border-bottom: 1px solid #e5e7eb; padding: 16px 0; }
.ptdl-faq-item p.ptdl-faq-q { font-weight: 700; margin: 0 0 6px; }

.ptdl-related { margin: 16px 0; padding: 14px 18px; background: #f9fafb; border-radius: 8px; }
.ptdl-related p.ptdl-related-label { margin: 0 0 4px; font-weight: 700; }

.ptdl-nav { display: grid; grid-template-columns: 1fr 1.4fr 1fr; gap: 12px; margin: 40px 0 20px; }
.ptdl-nav a { display: block; text-decoration: none; border-radius: 10px; padding: 14px 16px; }
.ptdl-nav .ptdl-nav-prev, .ptdl-nav .ptdl-nav-next { background: #f3f4f6; color: #374151; }
.ptdl-nav .ptdl-nav-hub { background: #2563eb; color: #fff; font-weight: 700; text-align: center; }
.ptdl-nav span { display: block; font-size: 0.75em; opacity: 0.75; margin-bottom: 4px; }
@media (max-width: 640px) {
  .ptdl-nav { grid-template-columns: 1fr; }
}

.ptdl-source { margin-top: 36px; padding-top: 16px; border-top: 1px solid #e5e7eb; font-size: 0.85em; color: #6b7280; }

.ptdl-signup { background: #ecfdf5; border: 1px solid #a7f3d0; border-radius: 10px; padding: 20px 22px; margin: 24px 0; }
.ptdl-signup strong { display: block; font-size: 1.05em; margin-bottom: 6px; color: #065f46; }

.ptdl-quicknav { list-style: none; padding: 0; margin: 12px 0 32px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.ptdl-quicknav li { background: #f9fafb; border-radius: 8px; padding: 10px 14px; }
.ptdl-quicknav a { font-weight: 600; text-decoration: none; }
.ptdl-quicknav-count { color: #9ca3af; font-size: 0.85em; }
@media (max-width: 640px) {
  .ptdl-quicknav { grid-template-columns: 1fr; }
}

.ptdl-module-tagline { color: #6b7280; font-size: 0.95em; margin-top: -6px; margin-bottom: 12px; }