/* Timeline */

.page-data-feeds {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--ink-muted);
  margin: 0.85rem 0 0;
  line-height: 1.5;
}

.page-data-feeds-label {
  font-weight: 600;
  margin-right: 0.35rem;
}

.page-data-feeds a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.12em;
}

.page-data-feeds a:hover {
  text-decoration-thickness: 1.5px;
}

.page-data-feeds-sep {
  margin: 0 0.35rem;
  opacity: 0.55;
}

.timeline-page > header {
  margin-bottom: 1.75rem;
}

.timeline-toolbar {
  position: sticky;
  top: var(--nav-h);
  z-index: 50;
  margin: 0 -1.25rem 1.25rem;
  padding: 1rem 1.25rem 1.1rem;
  background: rgba(250, 250, 249, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  border-top: 1px solid var(--border);
}

.timeline-toolbar-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  align-items: flex-end;
}

.timeline-field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-family: var(--font-ui);
}

.timeline-field-search {
  flex: 1 1 14rem;
  min-width: 0;
}

.timeline-toolbar-row-primary {
  align-items: flex-end;
}

.timeline-field-range {
  flex: 1 1 100%;
  margin-top: 0.15rem;
}

.timeline-range-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.35rem;
}

.timeline-range-values {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}

.timeline-range {
  position: relative;
  height: 1.75rem;
  display: flex;
  align-items: center;
}

.timeline-range-track,
.timeline-range-fill {
  position: absolute;
  left: 0;
  right: 0;
  height: 0.28rem;
  border-radius: 999px;
  pointer-events: none;
}

.timeline-range-track {
  background: var(--border);
}

.timeline-range-fill {
  background: var(--accent);
}

.timeline-range input[type="range"] {
  position: absolute;
  width: 100%;
  margin: 0;
  padding: 0;
  height: 1.75rem;
  background: transparent;
  pointer-events: none;
  -webkit-appearance: none;
  appearance: none;
}

.timeline-range input[type="range"]::-webkit-slider-runnable-track {
  height: 0.28rem;
  background: transparent;
  border: none;
}

.timeline-range input[type="range"]::-moz-range-track {
  height: 0.28rem;
  background: transparent;
  border: none;
}

.timeline-range input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  pointer-events: auto;
  width: 1.05rem;
  height: 1.05rem;
  margin-top: -0.38rem;
  border-radius: 50%;
  border: 2px solid var(--accent);
  background: var(--paper);
  box-shadow: 0 1px 3px rgba(28, 25, 23, 0.15);
  cursor: grab;
}

.timeline-range input[type="range"]::-moz-range-thumb {
  pointer-events: auto;
  width: 1.05rem;
  height: 1.05rem;
  border-radius: 50%;
  border: 2px solid var(--accent);
  background: var(--paper);
  box-shadow: 0 1px 3px rgba(28, 25, 23, 0.15);
  cursor: grab;
}

.timeline-range input[type="range"]:active::-webkit-slider-thumb,
.timeline-range input[type="range"]:active::-moz-range-thumb {
  cursor: grabbing;
  background: var(--accent-pale);
}

.timeline-range input[type="range"]:focus-visible::-webkit-slider-thumb,
.timeline-range input[type="range"]:focus-visible::-moz-range-thumb {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.timeline-range-bounds {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-ui);
  font-size: 0.68rem;
  color: var(--ink-muted);
  margin-top: 0.15rem;
}

.timeline-field-group {
  display: flex;
  gap: 0.5rem;
  flex: 0 0 auto;
}

.timeline-field-year {
  width: 5.5rem;
}

.timeline-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  font-weight: 600;
}

.timeline-toolbar input[type="search"] {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--paper);
  color: var(--ink);
  width: 100%;
}

.timeline-toolbar input[type="search"]:focus {
  outline: 2px solid var(--accent-pale);
  border-color: var(--accent);
}

.timeline-toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-left: auto;
}

.btn-ghost {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--border);
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.45rem 0.7rem;
  border-radius: 4px;
}

.btn-ghost:hover {
  background: var(--accent-pale);
  border-color: var(--accent);
}

.btn-sm {
  padding: 0.3rem 0.55rem;
  font-size: 0.72rem;
}

.timeline-sources-panel {
  margin-top: 0.85rem;
  padding-top: 0.85rem;
  border-top: 1px dashed var(--border);
}

.timeline-sources-summary {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink-soft);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.timeline-sources-summary::-webkit-details-marker { display: none; }

.timeline-sources-count {
  font-weight: 400;
  color: var(--ink-muted);
  font-size: 0.78rem;
}

.timeline-sources-actions {
  display: flex;
  gap: 0.35rem;
  margin: 0.65rem 0 0.5rem;
}

.timeline-sources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
  gap: 0.35rem 0.75rem;
  max-height: 11rem;
  overflow-y: auto;
  padding: 0.25rem 0;
}

.timeline-source-option {
  display: flex;
  align-items: flex-start;
  gap: 0.4rem;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--ink-soft);
  cursor: pointer;
  line-height: 1.35;
}

.timeline-source-option input {
  margin-top: 0.15rem;
  flex-shrink: 0;
}

.timeline-status {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--ink-muted);
  margin: 0 0 1rem;
}

.timeline-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.timeline-jump a {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  padding: 0.2rem 0.45rem;
  border-radius: 3px;
  background: var(--accent-pale);
}

.timeline-jump a:hover {
  filter: brightness(0.97);
}

.timeline-root {
  position: relative;
}

.timeline-loading,
.timeline-error,
.timeline-empty {
  font-family: var(--font-ui);
  color: var(--ink-muted);
  padding: 2rem 0;
}

.timeline-error {
  color: #9a3412;
}

.timeline-year {
  margin-bottom: 0.5rem;
}

.timeline-year summary {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  cursor: pointer;
  padding: 0.65rem 0;
  list-style: none;
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: calc(var(--nav-h) + 9.5rem);
  background: var(--paper);
  z-index: 10;
}

.timeline-year summary::-webkit-details-marker { display: none; }

.timeline-year summary::before {
  content: "▸";
  font-size: 0.85rem;
  color: var(--ink-muted);
  transition: transform 0.15s ease;
}

.timeline-year[open] summary::before {
  transform: rotate(90deg);
}

.timeline-year-count {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 400;
  color: var(--ink-muted);
}

.timeline-events {
  list-style: none;
  margin: 0;
  padding: 0.35rem 0 1.25rem 1.1rem;
  border-left: 2px solid var(--border);
}

.timeline-event {
  position: relative;
  padding: 0.65rem 0 0.65rem 1rem;
}

.timeline-event::before {
  content: "";
  position: absolute;
  left: -1.1rem;
  top: 1.1rem;
  width: 0.55rem;
  height: 0.55rem;
  margin-left: -0.275rem;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--accent);
}

.timeline-event-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.75rem;
  margin-bottom: 0.35rem;
}

.timeline-event-date {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--gold);
  white-space: nowrap;
}

.timeline-event-title {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.45;
  color: var(--ink);
  margin: 0;
  font-weight: 400;
}

.timeline-event-sources {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline-source-tag {
  font-family: var(--font-ui);
  font-size: 0.68rem;
  color: var(--accent);
  background: var(--paper-warm);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.12rem 0.4rem;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 1px;
}

a.timeline-source-tag:hover {
  color: var(--ink);
  text-decoration-thickness: 1.5px;
  border-color: var(--accent);
  background: var(--accent-pale);
}

@media (max-width: 640px) {
  .timeline-toolbar {
    position: static;
    margin: 0 0 1rem;
    padding: 0.85rem 0;
    background: transparent;
    border-top: none;
  }

  .timeline-toolbar-actions {
    margin-left: 0;
    width: 100%;
  }

  .timeline-year summary {
    top: auto;
    position: static;
  }
}

@media (prefers-reduced-motion: reduce) {
  .timeline-year summary::before {
    transition: none;
  }
}