/* ---------- About ---------- */

.about {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.about h2 {
  margin: 0 0 16px;
  font-size: 1.5rem;
}

.about-top-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 16px;
  align-items: stretch;
}

.about-intro-box {
  background: var(--bg-card);
  border: 1px solid var(--gold);
  border-radius: var(--radius);
  padding: 18px 20px;
  display: flex;
  align-items: center;
}

.about-intro-box p {
  margin: 0;
  color: var(--text-dim);
  text-align: justify;
  text-justify: inter-word;
}

.partner-badges {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.partner-badge {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--bg-card);
  border: 1px solid var(--gold);
  border-radius: var(--radius);
  padding: 12px 18px;
  max-width: 100%;
  flex: 1;
}

.badge-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  object-fit: contain;
  border-radius: 4px;
}

.partner-badge span {
  color: var(--text-dim);
  font-size: 0.88rem;
  text-align: justify;
  text-justify: inter-word;
}

.about-points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.point {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-card);
  border: 1px solid var(--gold);
  border-radius: var(--radius);
  padding: 16px;
  font-size: 0.92rem;
}

.point span:last-child {
  text-align: justify;
  text-justify: inter-word;
}

.point-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  color: var(--accent);
}

.directive-basis {
  margin-top: 16px;
  padding: 18px 20px;
  background: var(--bg-card);
  border: 1px solid var(--gold);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius);
}

.directive-basis h3 {
  margin: 0 0 10px;
  font-size: 0.95rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.directive-basis ul {
  margin: 0;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.directive-basis li {
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.55;
  text-align: justify;
  text-justify: inter-word;
}

.directive-basis strong {
  color: var(--text);
}

@media (max-width: 720px) {
  .about-top-grid { grid-template-columns: 1fr; }
}

/* ---------- Nguồn thông tin chính thống ---------- */

.official-sources-section {
  background:
    linear-gradient(135deg, var(--gold-soft), transparent 42%),
    var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.official-sources-kicker {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.official-sources-title {
  margin: 0 0 6px;
  color: var(--accent);
  font-size: clamp(1.65rem, 4vw, 2.35rem);
  font-weight: 800;
  line-height: 1.15;
}

.official-sources-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.official-source-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  min-height: 230px;
  padding: 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.official-source-card:hover,
.official-source-card:focus-within {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.official-source-icon {
  display: inline-grid;
  place-items: center;
  min-width: 48px;
  height: 38px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 800;
}

.official-source-card h3 {
  margin: 0;
  font-size: 1rem;
  line-height: 1.38;
}

.official-source-card p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.8rem;
  line-height: 1.5;
}

.official-source-card a {
  margin-top: auto;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 750;
  text-decoration: none;
}

.official-source-card a:hover,
.official-source-card a:focus-visible {
  text-decoration: underline;
}

@media (prefers-reduced-motion: no-preference) {
  .official-source-card { transition: transform 0.16s ease, border-color 0.16s ease; }
}

@media (max-width: 720px) {
  .official-sources-grid { grid-template-columns: 1fr; }
  .official-source-card { min-height: 0; }
}

/* ---------- Timeline section ---------- */

.timeline-section .section-inner {
  max-width: 1320px;
}

.timeline-layout {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(270px, 3fr);
  gap: 30px;
  align-items: start;
}

.timeline-main { min-width: 0; }

.popular-sidebar {
  position: sticky;
  top: calc(var(--header-brand-h) + var(--header-h) + 20px);
  padding: 22px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-top: 4px solid var(--gold);
  border-radius: var(--radius);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.12);
}

.popular-kicker {
  margin: 0 0 5px;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.popular-sidebar h2 {
  margin: 0 0 16px;
  font-size: 1.25rem;
}

.popular-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.popular-list li {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 10px;
  padding: 13px 0;
  border-top: 1px solid var(--border);
}

.popular-list li:first-child { border-top: 0; padding-top: 0; }

.popular-rank {
  color: var(--gold);
  font-size: 1.05rem;
  font-weight: 800;
}

.popular-copy { display: grid; gap: 4px; }
.popular-copy a { font-size: 0.84rem; font-weight: 700; line-height: 1.4; text-decoration: none; }
.popular-copy a:hover, .popular-copy a:focus-visible { color: var(--accent); text-decoration: underline; }
.popular-copy small { color: var(--text-dim); font-size: 0.7rem; }
.popular-list .popular-empty { display: block; color: var(--text-dim); font-size: 0.8rem; }

.timeline-section h2 {
  margin: 0 0 6px;
  font-size: 1.5rem;
}

.section-hint {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin: 0 0 20px;
}

.category-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.category-pill {
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-dim);
  font-size: 0.85rem;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.category-pill:hover {
  border-color: var(--accent-dim);
  color: var(--text);
}

.category-pill.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
}

.activity-card.filtered-out {
  display: none;
}

.timeline {
  position: relative;
  padding-left: 28px;
  border-left: 2px solid var(--border);
}

.loading, .empty, .error {
  color: var(--text-dim);
  padding: 20px 0;
}

.error { color: var(--danger); }

.event-card {
  position: relative;
  margin-bottom: 20px;
}

.event-dot {
  position: absolute;
  left: -34px;
  top: 22px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.event-summary {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  cursor: pointer;
  text-align: left;
  color: var(--text);
  font: inherit;
}

.event-card.open .event-summary {
  border-color: var(--accent-dim);
}

.event-summary-text {
  flex: 1;
  min-width: 0;
}

.event-date {
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.4px;
  margin-bottom: 4px;
}

.event-title {
  margin: 0 0 4px;
  font-size: 1.08rem;
}

.event-location {
  color: var(--text-dim);
  font-size: 0.88rem;
}

.event-category {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 9px;
  border-radius: 999px;
  border: 1px solid var(--accent-dim);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2px;
  vertical-align: middle;
}

.toggle-icon {
  flex-shrink: 0;
  color: var(--text-dim);
  transition: transform 0.25s ease;
}

.event-card.open .toggle-icon {
  transform: rotate(180deg);
  color: var(--accent);
}

.event-panel {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, opacity 0.25s ease;
}

.event-card.open .event-panel {
  max-height: 3000px;
  opacity: 1;
}

.event-panel-inner {
  padding: 16px 18px 4px;
}

.event-body { color: var(--text); font-size: 0.96rem; }
.event-body p { margin: 0 0 10px; }
.event-body ul { margin: 0 0 10px 20px; padding: 0; }
.event-body a { color: var(--accent); }

.event-video {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  margin: 4px 0 14px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #000;
}

.event-video iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.event-cover {
  width: 100%;
  aspect-ratio: 16 / 9;
  margin: 4px 0 14px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--gold);
}

.event-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  cursor: zoom-in;
  transition: transform 0.2s ease;
}

.event-cover img:hover { transform: scale(1.02); }

.event-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 10px;
  margin: 4px 0 14px;
}

.event-gallery img {
  width: 100%;
  height: 110px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--border);
  cursor: zoom-in;
  transition: transform 0.15s ease;
}

.event-gallery img:hover { transform: scale(1.03); }

.event-link {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--accent);
  text-decoration: none;
  font-size: 0.92rem;
}

.event-link:hover { text-decoration: underline; }

.event-plan-number {
  margin: 0 0 10px;
  color: var(--text-dim);
  font-size: 0.86rem;
  font-style: italic;
}

/* ---------- Hoat dong khac (luoi the dang tap chi) ---------- */

.activity-section {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
}

.activity-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 18px;
}

.activity-card {
  display: flex;
  flex-direction: column;
  width: 100%;
  padding: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  text-align: left;
  color: var(--text);
  font: inherit;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.activity-card:hover {
  border-color: var(--accent-dim);
  transform: translateY(-2px);
}

.activity-thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  display: block;
  object-fit: cover;
  background: var(--bg-alt);
}

.activity-body {
  padding: 14px 16px 16px;
}

.activity-cat {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
}

.activity-title {
  margin: 6px 0 4px;
  font-size: 0.96rem;
  line-height: 1.35;
}

.activity-meta {
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* ---------- Bo ky nang An toan so (luoi anh/infographic) ---------- */

.skills-section {
  background: var(--bg);
  border-top: 1px solid var(--border);
}

.skills-subheading {
  margin: 0 0 14px;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text);
}

.skills-grid + .skills-subheading {
  margin-top: 32px;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 18px;
}

.skill-card {
  display: flex;
  flex-direction: column;
  width: 100%;
  padding: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: left;
  color: var(--text);
  text-decoration: none;
  font: inherit;
  cursor: pointer;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.skill-card:hover {
  border-color: var(--accent-dim);
  transform: translateY(-2px);
}

.skill-thumb {
  width: 100%;
  aspect-ratio: 4 / 3;
  display: block;
  object-fit: cover;
  background: var(--bg-alt);
  cursor: zoom-in;
}

.skill-body {
  padding: 12px 14px 14px;
}

.skill-title {
  margin: 0 0 4px;
  font-size: 0.94rem;
  line-height: 1.35;
}

.skill-summary {
  margin: 0;
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.5;
}

.skill-open-hint {
  display: block;
  margin-top: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
}

.activity-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 110;
}

.activity-modal.active { display: flex; }

.activity-modal-box {
  position: relative;
  width: 100%;
  max-width: 640px;
  max-height: 88vh;
  overflow-y: auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 22px 26px;
}

.activity-modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--text);
  cursor: pointer;
}

.activity-modal-content .event-title {
  padding-right: 32px;
}

.activity-modal-content .event-location {
  margin-bottom: 14px;
}

@media (max-width: 640px) {
  .activity-modal { padding: 0; }
  .activity-modal-box { max-width: none; max-height: 100vh; height: 100vh; border-radius: 0; }
}

@media (max-width: 900px) {
  .timeline-layout { grid-template-columns: 1fr; }
  .popular-sidebar { position: static; order: -1; }
}

.activity-summary {
  display: -webkit-box;
  overflow: hidden;
  margin: 9px 0 0;
  color: var(--text-dim);
  font-size: 0.82rem;
  line-height: 1.55;
  text-align: left;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.activity-source {
  margin-top: 10px;
  color: var(--accent);
  font-size: 0.73rem;
  font-weight: 750;
  text-align: left;
}
.event-body .article-inline-image { margin: 24px 0; }
.event-body .article-inline-image img { display: block; width: 100%; max-height: 620px; object-fit: contain; background: #e8eef3; }
.event-body .article-inline-image figcaption { margin-top: 8px; color: #24824f; font-style: italic; text-align: center; }
.event-body .text-align-center { text-align: center; }
.event-body .text-align-right { text-align: right; }
.event-body .text-align-justify { text-align: justify; }
.event-body blockquote { margin: 1.4em 0; padding: 13px 17px; border-left: 4px solid var(--gold); background: #fff8e6; }
.event-body hr { border: 0; border-top: 1px solid var(--line); margin: 28px 0; }