/* Article detail page — Phase 2: professional article system.
 *
 * Inherits theme tokens so the article stays consistent with the site theme.
 * Typography is intentionally tuned for long-form reading: 18px body, 1.7
 * line-height, generous paragraph margins, max-width 720px for readability.
 */

.article-detail #content { padding: 0; }

.article-panel {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 24px 80px !important;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

/* ---- Article action bar (top + bottom) ---- */
.article-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.article-actions .back-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
  transition: color .15s;
}
.article-actions .back-link:hover { color: var(--primary); }
.article-share-bar {
  display: flex;
  gap: 6px;
  align-items: center;
}
.article-action-btn {
  background: var(--surface-container);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  border-radius: var(--radius-pill);
  padding: 6px 12px;
  font: inherit;
  font-size: 12px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background .15s, border-color .15s, color .15s;
}
.article-action-btn:hover {
  border-color: var(--primary);
  color: var(--text-primary);
}
.article-action-btn.is-active {
  background: var(--primary-container);
  border-color: var(--primary);
  color: var(--on-primary-container);
}
.article-action-btn .action-icon { font-size: 14px; line-height: 1; }
.article-action-btn .action-count {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

/* ---- Hero image ---- */
.article-hero-image {
  width: 100%;
  max-height: 480px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--surface-container);
}
.article-hero-image img {
  width: 100%;
  height: 100%;
  max-height: 480px;
  object-fit: cover;
  display: block;
}

/* ---- Header ---- */
.article-header {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.article-category {
  align-self: flex-start;
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--primary);
  text-decoration: none;
  padding: 4px 12px;
  border: 1px solid var(--primary);
  border-radius: var(--radius-pill);
  font-weight: 600;
}
.article-category:hover { background: var(--primary-container); }
.article-title {
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--text-primary);
  margin: 0;
  font-weight: 700;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-size: 13px;
  color: var(--text-muted);
}
.article-meta .meta-author strong {
  color: var(--text-secondary);
  font-weight: 600;
}
.article-meta .meta-date,
.article-meta .meta-reading,
.article-meta .meta-views {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.article-meta .meta-views::before { content: '◉'; font-size: 10px; color: var(--primary); }
.article-meta .meta-reading::before { content: '⌚'; font-size: 11px; }

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.article-tag {
  font-size: 11px;
  padding: 3px 10px;
  background: var(--tertiary-container);
  color: var(--on-tertiary-container);
  border-radius: var(--radius-pill);
  text-decoration: none;
  transition: background .15s;
}
.article-tag:hover { background: var(--surface-container-high); }

/* ---- Body ---- */
.article-body {
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 18px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.article-lede {
  font-size: 19px;
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0;
  font-weight: 500;
}
.article-content-text {
  color: var(--text-primary);
}
.article-content-text p { margin: 0 0 16px; }
.article-content-extra {
  color: var(--text-secondary);
  border-top: 1px solid var(--border);
  padding-top: 16px;
  font-style: italic;
}

/* ---- Footer action bar ---- */
.article-footer { margin-top: 12px; }
.article-action-bar {
  display: flex;
  gap: 12px;
  padding: 16px;
  background: var(--surface-container-low);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  flex-wrap: wrap;
}
.action-bar-btn {
  flex: 1;
  min-width: 100px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
}
.action-bar-btn:hover {
  border-color: var(--primary);
  color: var(--text-primary);
}
.action-bar-btn.is-active {
  background: var(--primary-container);
  border-color: var(--primary);
  color: var(--on-primary-container);
}
.action-bar-btn .action-icon { font-size: 16px; }
.action-bar-btn .action-count {
  margin-inline-start: auto;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--text-muted);
}
.action-bar-btn.is-active .action-count { color: var(--on-primary-container); }
.action-bar-btn.is-active .action-icon { color: var(--primary); }

/* ---- Related ---- */
.article-related {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.related-title {
  font-size: 14px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0;
}
.related-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}
.related-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px;
  background: var(--surface-container-low);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--text-primary);
  transition: border-color .15s, transform .15s, background .15s;
}
.related-card:hover {
  border-color: var(--primary);
  background: var(--surface-container);
  transform: translateY(-2px);
}
.related-thumb {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--surface-container-high);
}
.related-thumb img { width: 100%; height: 100%; object-fit: cover; }
.related-card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-card-excerpt {
  font-size: 12px;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---- Pagination (prev / next) ---- */
.article-pagination {
  display: flex;
  gap: 12px;
  border-top: 1px solid var(--border);
  padding-top: 20px;
}
.article-pagination > a {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px;
  background: var(--surface-container-low);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--text-primary);
  transition: border-color .15s, transform .15s;
}
.article-pagination > a:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}
.article-pagination .pagination-dir {
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.article-pagination .pagination-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---- Toast notification ---- */
.platform-toast {
  position: fixed;
  bottom: 24px;
  inset-inline-start: 50%;
  transform: translateX(-50%);
  background: var(--modal-background);
  color: var(--text-primary);
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  box-shadow: 0 12px 32px var(--shadow-color);
  z-index: 9999;
  font-size: 13px;
  opacity: 0;
  transition: opacity .2s, transform .2s;
  pointer-events: none;
}
[dir="rtl"] .platform-toast { transform: translateX(50%); }
.platform-toast.is-visible { opacity: 1; transform: translateX(-50%) translateY(-4px); }
[dir="rtl"] .platform-toast.is-visible { transform: translateX(50%) translateY(-4px); }

/* ---- Share dialog ---- */
.platform-share-modal {
  position: fixed;
  inset: 0;
  background: var(--backdrop);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}
.platform-share-modal.is-open { display: flex; }
.platform-share-card {
  background: var(--modal-background);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 24px;
  max-width: 380px;
  width: calc(100% - 32px);
}
.platform-share-card h3 {
  margin: 0 0 16px;
  color: var(--text-primary);
  font-size: 16px;
}
.platform-share-card input {
  width: 100%;
  padding: 8px 12px;
  background: var(--input-background);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font: inherit;
  font-size: 13px;
}
.platform-share-card .share-buttons {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}
.platform-share-card .share-btn {
  flex: 1;
  min-width: 80px;
  background: var(--surface-container);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 10px;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 12px;
  text-decoration: none;
  text-align: center;
  transition: background .15s, color .15s;
}
.platform-share-card .share-btn:hover {
  background: var(--surface-container-high);
  color: var(--text-primary);
}
.platform-share-card .share-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 18px;
  position: absolute;
  top: 12px;
  inset-inline-end: 12px;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .article-panel { padding: 24px 16px 60px !important; }
  .article-title { font-size: 24px; }
  .article-body { font-size: 16px; }
  .article-lede { font-size: 17px; }
  .article-action-bar { flex-direction: column; }
  .action-bar-btn { width: 100%; }
  .article-pagination { flex-direction: column; }
  .related-list { grid-template-columns: 1fr; }
  .article-hero-image { max-height: 280px; border-radius: var(--radius-lg); }
}