/* Shared finish: official icons, optical spacing, readable source material. */
html svg.ui-icon {
  display: inline-block;
  width: var(--icon-size, 20px);
  height: var(--icon-size, 20px);
  flex: 0 0 auto;
  vertical-align: -.18em;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  pointer-events: none;
}
[data-icon] { display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto; }
html :is(.header-actions, .view-controls, .play-group, .detail-nav) button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-75);
  min-height: 40px;
  font-variant-numeric: tabular-nums;
}
html :is(#about-open, #theme-toggle, #zoom-in, #zoom-out, #previous, #next) {
  width: 40px;
  height: 40px;
  min-width: 40px;
  padding: 8px;
  border: 1px solid transparent;
  border-radius: var(--radius, 4px);
  background: transparent;
}
html :is(#about-open, #theme-toggle, #zoom-in, #zoom-out, #previous, #next):hover {
  background: var(--surface-hover);
  border-color: var(--line);
}
html :is(#about-open, #theme-toggle, #zoom-in, #zoom-out, #previous, #next):disabled { background: transparent; }
html .view-controls #overview { min-height: 40px; padding-inline: 12px; font-size: var(--text-xs); }
html .view-controls #zoom-label { width: 40px; font-size: var(--text-xs); }
html .view-controls #clear-focus { font-size: var(--text-xs); }
html .hint { align-items: center; gap: var(--spacing-75); }
html .hint .ui-icon { color: var(--muted); }
html :is(.system-actions, .evidence-panel, .reading-related, .reading-sources) :is(button, a),
html .open-lineage { display: inline-flex; align-items: center; gap: var(--spacing-75); }
html .sources a:after { content: none; }
html .sources a { align-items: center; }
html .sources a .ui-icon { color: var(--color, var(--accent)); }
html dialog > .close, html #detail > .close, html #search .close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 8px;
  border: 1px solid var(--line);
  box-shadow: none;
}
html .close:hover { background: var(--surface-hover); }
html #detail > .close { top: 16px; right: 16px; }

/* Original footage sits inside a frame; its pixels never touch the card edge. */
html .event-media:has(> img), html .event-media:has(> video) {
  padding: 6px;
  border: 1px solid var(--line);
  background: var(--panel);
}
html .event-media > :is(img, video) { border-radius: max(0px, calc(var(--radius, 4px) - 2px)); }
html .event-note { left: 12px; right: auto; top: 12px; display: inline-flex; align-items: center; gap: 4px; }
html .event-arrow { right: 12px; bottom: 12px; display: flex; }
html .story-panel .detail-cover {
  margin: var(--spacing-300) var(--spacing-300) 0;
  padding: var(--spacing-100);
  border: 1px solid var(--line);
  border-radius: var(--explore-radius, 4px);
  background: var(--panel);
}
html .story-panel .detail-cover > :is(img, video) {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: max(0px, calc(var(--explore-radius, 4px) - 12px));
}
html .story-panel .detail-cover:has(> .type-art) { padding: 0; }
html .story-panel .detail-cover .type-art { padding: var(--spacing-300); container-type: size; gap: var(--spacing-100); }
html .story-panel .detail-cover .type-art .type-name {
  font-size: clamp(24px, min(24cqh, 12cqi), 52px);
  line-height: 1.08;
  letter-spacing: -.04em;
  overflow-wrap: anywhere;
  word-break: normal;
  max-height: none;
  overflow: visible;
}
html .story-panel .detail-cover .paper-art .type-name { font-size: clamp(20px, min(20cqh, 10cqi), 36px); }
html .story-panel .detail-credit {
  margin-inline: var(--spacing-300);
  padding: var(--spacing-100) 0 0;
  font-size: var(--text-xs);
  line-height: var(--line-sm);
}
html .story-panel .detail-copy { padding: var(--spacing-300); }
html .story-panel .detail-body p { font-size: var(--text-sm); line-height: 1.85; }
html .story-panel :is(.detail-body h3, .sources h3) { font-size: var(--text-xs); line-height: var(--line-sm); }
html .story-panel .sources a { font-size: var(--text-sm); line-height: var(--line-sm); padding-block: var(--spacing-100); min-height: 44px; }
html :is(.trend-caption, .trend-method, .paper-authors, .date-basis) { font-size: var(--text-xs); line-height: var(--line-sm); }
html .trend-method summary { min-height: 32px; padding-block: var(--spacing-75); }
html .trend-method a { display: inline-flex; align-items: center; gap: var(--spacing-50); min-height: 36px; }
html .chart-controls { flex-wrap: wrap; justify-content: flex-end; }
html .chart-controls button { min-height: 32px; font-size: var(--text-xs); padding: var(--spacing-50) var(--spacing-75); }
html .insight-heading { align-items: start; }
html .insight-heading h3 { flex-shrink: 0; padding-top: var(--spacing-75); }
html .relation-card > a { display: inline-flex; align-items: center; gap: var(--spacing-50); min-height: 36px; font-size: var(--text-xs); }
html .relation-direction { display: inline-flex; align-items: center; gap: var(--spacing-50); }
html .detail-nav { gap: var(--spacing-100); padding-block: var(--spacing-100); }
html .detail-nav button { font-size: var(--text-xs); }
html .dossier-tabs { padding-right: 72px; }

@media (max-width: 800px) {
  html #detail > .close { top: 12px; right: 12px; margin: 12px 12px -52px 0; }
  html .story-panel .detail-cover { margin-inline: var(--spacing-200); }
  html .story-panel .detail-credit { margin-inline: var(--spacing-200); }
  html .story-panel .detail-copy { padding: var(--spacing-300) var(--spacing-200); }
  html .focus-title { padding-right: var(--spacing-400); }
  html .relation-list { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  html #timeline-view .masthead {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-rows: 72px 44px;
    height: 140px;
    padding: 8px 16px;
    gap: 8px;
    align-items: center;
  }
  html .masthead .current-time { grid-column: 1; grid-row: 1; min-width: 0; }
  html .masthead .mast-copy { grid-column: 2; grid-row: 1; align-self: center; padding: 0; text-align: right; }
  html .masthead .mast-copy h1 { font-size: 12px; line-height: 20px; }
  html .masthead .mast-copy p { display: none; }
  html :is(.header-actions, .view-controls, .play-group, .detail-nav) button { min-height: 44px; }
  html :is(#about-open, #theme-toggle, #zoom-in, #zoom-out, #previous, #next) { min-width: 44px; width: 44px; height: 44px; }
  html .masthead .view-controls { grid-column: 1 / -1; grid-row: 2; position: static; width: 100%; margin: 0; gap: 4px; justify-content: flex-end; }
  html #filter-open { min-width: 44px; margin-right: auto; }
  html #filter-open [data-icon] { display: inline-flex; }
  html .view-controls #overview { min-height: 44px; padding-inline: 8px; }
  html .view-controls #zoom-label { width: 36px; font-size: var(--text-xs); }
  html .view-controls #clear-focus { position: static; min-width: 44px; width: 44px; font-size: 0; gap: 0; }
  html .play-group { width: 140px; flex: 0 0 140px; gap: 4px; }
  html .play-group #play { width: 44px; min-width: 44px; }
  html .play-group #play span { display: none; }
  html .detail-nav { padding-inline: var(--spacing-200); }
  html .detail-nav button { gap: var(--spacing-50); }
  html .trend-stats :is(span, small) { font-size: var(--text-xs); line-height: var(--line-xs); }
  html .trend-stats { gap: var(--spacing-75); }
  html .trend-stats > div + div { padding-left: var(--spacing-75); }
  html .trend-stats strong.momentum { font-size: var(--text-sm); line-height: var(--line-lg); }
  html .focus-panel { padding-inline: var(--spacing-200); }
  html .focus-title > p:last-child { font-size: var(--text-sm); line-height: var(--line-base); }
  html .chart-controls button { min-height: 40px; }
  html .insight-heading { flex-wrap: wrap; row-gap: var(--spacing-75); }
  html .insight-heading h3 { font-size: var(--text-sm); }
  html .insight-heading .chart-controls { margin-left: auto; }
  html .event-note { left: 10px; top: 10px; }
  html .event-arrow { right: 10px; bottom: 10px; }
  html .dossier-tabs { padding-right: 64px; }
  html .lane-label .lane-count { font-size: 10px; line-height: 14px; }
  html .lane-label h2 span { font-size: 8px; line-height: 12px; }
  html .event-meta { font-size: 9px; line-height: 14px; }
  html .event-meta .format { font-size: 8px; }
  html .year-nav button { font-size: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  html :is(.event, .event-media, .ui-icon) { transition: none; }
}