:root {
  color-scheme: light dark;
  --ink: #16181d;
  --muted: #565d66;
  --quiet: #747b83;
  --accent: #1e5c3a;
  --accent-ink: #ffffff;
  --paper: #f6f6f3;
  --card: #ffffff;
  --panel: #f0f1ee;
  --panel-strong: #e7e9e5;
  --line: #dcdedb;
  --line-strong: #bfc4bf;
  --focus: #2169a8;
  --shadow: rgba(24, 32, 29, 0.14);
  --marker-outline: #343a40;
  --pivotal: #cc79a7;
  --substantive: #0072b2;
  --incremental: #009e73;
  --packaging: #e69f00;
  --superfluous: #777777;
  --failed: #d55e00;
  --manual: #56b4e9;
  --artifact: #9a6a00;
  --system: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --serif: "Computer Modern Serif", Georgia, "Times New Roman", serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e8e9ec;
    --muted: #9aa1ab;
    --quiet: #8d949d;
    --accent: #3f9c6b;
    --accent-ink: #0d1210;
    --paper: #16181c;
    --card: #1e2126;
    --panel: #22262b;
    --panel-strong: #292e34;
    --line: #33373d;
    --line-strong: #525961;
    --focus: #77b7ea;
    --shadow: rgba(0, 0, 0, 0.36);
    --marker-outline: #f1f3f5;
    --pivotal: #cc79a7;
    --substantive: #0072b2;
    --incremental: #009e73;
    --packaging: #e69f00;
    --superfluous: #777777;
    --failed: #d55e00;
    --manual: #56b4e9;
    --artifact: #d2a83c;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-width: 20rem;
  background: var(--paper);
}

body {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0;
  color: var(--ink);
  background: var(--paper);
  font: 1rem/1.55 var(--serif);
  font-size: 16px;
}

button,
input,
summary {
  font-family: var(--system);
  letter-spacing: 0;
}

button,
input {
  font-size: 0.9rem;
}

button {
  color: var(--ink);
}

a {
  color: var(--accent);
  text-decoration-color: color-mix(in srgb, var(--accent) 55%, transparent);
  text-underline-offset: 0.18em;
}

a:hover {
  text-decoration-color: var(--accent);
}

button:focus-visible,
input:focus-visible,
summary:focus-visible,
a:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

[hidden] {
  display: none !important;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  clip-path: inset(50%) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 1000;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  color: var(--ink);
  background: var(--card);
  font: 650 0.9rem/1 var(--system);
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.dashboard-shell {
  width: min(96rem, 100%);
  min-height: 100vh;
  margin: 0 auto;
  padding: 1.5rem clamp(1.25rem, 4vw, 3rem) 4rem;
}

.dashboard-header {
  width: min(72rem, 100%);
  margin: 0 auto 1.3rem;
  text-align: center;
}

.dashboard-header .back {
  display: inline-block;
  color: var(--accent);
  font: 650 0.9rem/1.3 var(--system);
  text-decoration: none;
}

/* Inside the old inline-flex box the <sub> became a flex item, where
   vertical-align is ignored, so the 2 in ℚ2 sat at superscript height. */
.dashboard-header .back sub {
  position: relative;
  top: 0.34em;
  font-size: 0.72em;
  line-height: 0;
  vertical-align: baseline;
}

.dashboard-header .back:hover {
  text-decoration: underline;
}

.header-copy {
  max-width: 72rem;
  margin: 0.7rem auto 0;
  text-align: center;
}

.eyebrow {
  margin: 0 0 0.4rem;
  color: var(--accent);
  font: 700 0.75rem/1.2 var(--system);
  letter-spacing: 0;
  text-transform: uppercase;
}

.dashboard-header h1 {
  margin: 0;
  font-size: 2.4rem;
  line-height: 1.12;
  letter-spacing: 0;
  text-align: center;
}

.lede {
  max-width: 64ch;
  margin: 0.55rem auto 0;
  font-size: 1.08rem;
}

.dashboard-header .lede + .lede {
  margin-top: 0.35rem;
}

/* The homepage-style button row (base styles in site.css) needs its own
   vertical rhythm inside the header column. */
.dashboard-header .actions {
  margin: 1.15rem auto 0.15rem;
}

.record-guide {
  max-width: 72ch;
  margin: 1.05rem auto 0.2rem;
  font-size: 0.98rem;
  line-height: 1.55;
}

.accounting-note {
  max-width: 68rem;
  margin: 0.85rem auto 0;
  color: var(--muted);
  font: 0.78rem/1.45 var(--system);
}

.accounting-note summary {
  display: inline-block;
  color: var(--accent);
  font-weight: 650;
  cursor: pointer;
  list-style: none;
}

.accounting-note summary::-webkit-details-marker {
  display: none;
}

.accounting-note summary::before {
  content: "+ ";
}

.accounting-note[open] summary::before {
  content: "− ";
}

.accounting-note-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.45rem 1rem;
  margin-top: 0.45rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  text-align: left;
}

.accounting-note-body p {
  margin: 0;
}

.accounting-note-body strong {
  color: var(--ink);
}

.accounting-scope,
.accounting-links {
  grid-column: 1 / -1;
}

.accounting-links {
  padding-top: 0.4rem;
  border-top: 1px solid var(--line);
}

.accounting-links a {
  font-weight: 650;
}

.compute-credit {
  max-width: 58rem;
  margin: 0 auto 0.45rem;
  color: var(--muted);
  font: 0.78rem/1.4 var(--system);
}

.compute-credit a {
  color: var(--accent);
  font-weight: 650;
}

.detail-terms code {
  color: var(--ink);
  font-family: var(--system);
  font-size: 0.9em;
}

.view-tabs {
  border-bottom: 1px solid var(--line);
}

.tab-list {
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: thin;
}

.view-tab {
  min-height: 2.75rem;
  padding: 0.65rem 1rem;
  border: 0;
  border-bottom: 3px solid transparent;
  background: transparent;
  color: var(--muted);
  font-weight: 650;
  white-space: nowrap;
  cursor: pointer;
}

.view-tab:hover {
  color: var(--ink);
  background: color-mix(in srgb, var(--accent) 6%, transparent);
}

.view-tab.on,
.view-tab[aria-selected="true"] {
  border-bottom-color: var(--accent);
  color: var(--ink);
}

.record-controls {
  display: grid;
  grid-template-columns: minmax(15rem, 1fr) auto;
  gap: 0.75rem 1rem;
  align-items: end;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--system);
}

.search-control label,
.filter-group legend,
.date-range legend {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--muted);
  font: 700 0.72rem/1.2 var(--system);
  letter-spacing: 0;
  text-transform: uppercase;
}

.search-row {
  display: flex;
  gap: 0.45rem;
}

#search {
  flex: 1 1 auto;
  width: min(32rem, 100%);
  min-width: 0;
  min-height: 2.75rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  color: var(--ink);
  background: var(--card);
}

#search::placeholder {
  color: var(--quiet);
}

.text-button,
.seg button,
.filter-options button,
.navbtns button,
.zoombar button {
  min-height: 2.5rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--card);
  cursor: pointer;
}

.text-button:hover,
.seg button:hover,
.filter-options button:hover,
.navbtns button:hover,
.zoombar button:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.filter-drawer {
  align-self: end;
}

.filter-drawer > summary {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--card);
  font-weight: 650;
  cursor: pointer;
  list-style-position: inside;
}

.filter-drawer[open] {
  grid-column: 1 / -1;
}

.filter-groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 0.8rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.filter-group,
.date-range {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.seg,
.filter-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.seg button.on,
.seg button[aria-pressed="true"],
.filter-options button[aria-pressed="true"],
.filter-options .on {
  border-color: var(--accent);
  color: var(--accent-ink);
  background: var(--accent);
}

.legend span {
  display: inline-flex;
  min-height: 2.5rem;
  align-items: center;
  gap: 0.42rem;
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--card);
  cursor: pointer;
  user-select: none;
}

.legend span.off {
  opacity: 0.5;
}

.legend i {
  width: 0.68rem;
  height: 0.68rem;
  border-radius: 50%;
}

.legend small {
  color: var(--muted);
}

.filter-status {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.35rem 1rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.active-filters:empty {
  display: none;
}

.dashboard-main,
.view-stage {
  min-width: 0;
}

.dashboard-shell h2 {
  color: var(--ink);
  font-family: var(--serif);
  font-weight: 700;
  letter-spacing: 0;
  text-transform: none;
}

.view-panel {
  padding-top: 1rem;
}

.timeline-view {
  display: grid;
  grid-template-columns: 15.5rem minmax(0, 1fr);
  gap: 1.25rem;
  align-items: start;
}

.stage-index {
  position: sticky;
  top: 0.75rem;
  max-height: calc(100vh - 1.5rem);
  overflow-y: auto;
  padding-right: 0.85rem;
  border-right: 1px solid var(--line);
  scrollbar-width: thin;
}

.stage-index-heading h2,
.view-heading h2,
.stage-summary h2 {
  margin: 0;
  font-size: 1.45rem;
  line-height: 1.25;
}

.stage-index-heading p,
.view-heading p,
.stage-summary p {
  margin: 0.4rem 0 0;
  color: var(--muted);
}

.stage-list {
  margin-top: 1rem;
  border-top: 1px solid var(--line);
}

.chapter,
.stage-button {
  position: relative;
  display: block;
  width: 100%;
  padding: 0.75rem 0.2rem;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

.stage-button-action,
.map-stage-button-action,
.record-row-open {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.stage-button > :not(.stage-button-action),
.map-stage-button > :not(.map-stage-button-action),
.record-row > :not(.record-row-open) {
  position: relative;
  z-index: 2;
  pointer-events: none;
}

.candidate-inline-link {
  position: relative;
  z-index: 3;
  color: var(--accent);
  font-weight: inherit;
  pointer-events: auto;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.14em;
}

.chapter:hover,
.stage-button:hover,
.chapter.active,
.stage-button.is-selected {
  color: var(--accent);
  background: transparent;
}

.chapter.active,
.stage-button.is-selected {
  box-shadow: inset 3px 0 0 var(--accent);
  padding-left: 0.7rem;
}

.chapter .cnum,
.stage-number,
.stage-count {
  color: var(--muted);
  font: 700 0.72rem/1.3 var(--system);
}

.stage-number {
  display: inline-block;
  min-width: 1.25rem;
  margin-right: 0.3rem;
  vertical-align: 0.08rem;
}

.stage-count {
  display: block;
  margin-top: 0.35rem;
}

.chapter .ctitle,
.stage-title {
  margin-top: 0.15rem;
  font: 700 1rem/1.22 var(--serif);
}

.chapter .cblurb,
.stage-blurb {
  display: block;
  margin-top: 0.25rem;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.4;
}

.chapter .clinks {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.45rem;
}

.chapter .clinks a {
  color: var(--accent);
  font: 650 0.75rem/1.3 var(--system);
}

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

.stage-summary {
  min-height: 0;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--line);
}

.stage-summary-label {
  margin: 0 0 0.35rem !important;
  color: var(--accent) !important;
  font: 700 0.72rem/1.2 var(--system);
  letter-spacing: 0;
  text-transform: uppercase;
}

.stage-summary-list {
  display: grid;
  gap: 0.75rem;
}

.stage-candidate-links {
  margin: 0.55rem 0 0 !important;
  color: var(--muted);
  font: 0.76rem/1.5 var(--system);
}

.stage-candidate-links a {
  color: var(--accent);
  font-weight: 650;
}

.stage-summary-item + .stage-summary-item {
  padding-top: 0.75rem;
  border-top: 1px solid var(--line);
}

.stage-summary-item h2,
.stage-summary-item p {
  margin: 0;
}

.stage-summary-date {
  color: var(--muted);
  font: 650 0.76rem/1.3 var(--system);
}

.timeline-tools {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: end;
  margin: 0.75rem 0 0.65rem;
  font-family: var(--system);
}

.timeline-dot-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.75rem;
  align-items: center;
  margin: 0.15rem 0 0.55rem;
  padding: 0.45rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font: 650 0.7rem/1.3 var(--system);
}

.timeline-legend-title {
  color: var(--ink);
  font-weight: 750;
}

.timeline-legend-items {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  gap: 0.35rem 0.9rem;
  align-items: center;
}

.timeline-legend-item {
  display: inline-flex;
  gap: 0.35rem;
  align-items: center;
  white-space: nowrap;
}

.timeline-legend-dot {
  flex: 0 0 auto;
  width: 0.68rem;
  height: 0.68rem;
  border: 1.5px solid var(--marker-outline);
  border-radius: 50%;
}

.date-range {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}

.date-range legend {
  width: 100%;
}

.date-range label {
  color: var(--muted);
  font-size: 0.78rem;
}

.date-range input {
  min-height: 2.5rem;
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  color: var(--ink);
  background: var(--card);
}

.mobile-map-toggle,
.mobile-timeline {
  display: none;
}

.timeline-map {
  position: relative;
  height: 34rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    repeating-linear-gradient(180deg, transparent, transparent 59px, color-mix(in srgb, var(--line) 55%, transparent) 59px, color-mix(in srgb, var(--line) 55%, transparent) 60px),
    var(--card);
  touch-action: none;
}

#timeline {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  z-index: 4;
  width: 100%;
  height: 100%;
  transform-origin: 0 0;
  pointer-events: none;
}

#edges {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
  overflow: visible;
}

.timeline-map-svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
  user-select: none;
}

.map-stage-band {
  fill: color-mix(in srgb, var(--accent) 5%, var(--card));
}

.map-stage-band-alt {
  fill: color-mix(in srgb, var(--substantive) 4%, var(--card));
}

.map-stage-label,
.map-date-label,
.map-gap-label,
.map-lane-label {
  fill: var(--muted);
  font-family: var(--system);
  letter-spacing: 0;
  pointer-events: none;
}

.map-stage-label {
  fill: var(--ink);
  font-size: 12px;
  font-weight: 700;
}

.map-date-label,
.map-gap-label {
  font-size: 10px;
}

.map-lane-label {
  fill: var(--ink);
  font-size: 11px;
  font-weight: 650;
}

.map-date-tick,
.map-lane-line {
  stroke: var(--line);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.map-gap-marker {
  stroke: var(--line-strong);
  stroke-width: 1;
  stroke-dasharray: 3 3;
  vector-effect: non-scaling-stroke;
}

.map-edge {
  fill: none;
  stroke: var(--superfluous);
  stroke-width: 1.5;
  opacity: 0.65;
  vector-effect: non-scaling-stroke;
}

.map-edge.kill {
  stroke: var(--pivotal);
}

.map-edge.lineage {
  stroke: var(--substantive);
}

.map-edge.handoff {
  stroke: var(--incremental);
}

.map-edge.weak {
  stroke: var(--superfluous);
  stroke-width: 1;
  stroke-dasharray: 4 4;
  opacity: 0.45;
}

.map-record-button,
.map-event-button {
  position: absolute;
  z-index: 5;
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  pointer-events: auto;
  transform: translate(-50%, -50%);
}

.map-record-button:focus-visible,
.map-event-button:focus-visible {
  /* Keep keyboard focus paint inside the proven 44px marker boundary. */
  outline-offset: -5px;
}

.map-stage-button {
  position: absolute;
  top: 25px;
  z-index: 6;
  min-width: 0;
  height: 27px;
  padding: 0.2rem 0.42rem;
  overflow: hidden;
  border: 0;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  color: var(--ink);
  background: color-mix(in srgb, var(--card) 88%, transparent);
  font: 700 0.88rem/1.2 var(--serif);
  letter-spacing: 0;
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
  pointer-events: auto;
}

.map-stage-button:hover,
.map-stage-button:focus-within,
.map-stage-button.is-selected {
  border-bottom-color: var(--accent);
  color: var(--accent);
}

.map-stage-index {
  margin-right: 0.35rem;
  color: var(--accent);
  font: 700 0.67rem/1 var(--system);
}

.map-stage-button.is-compact {
  text-align: center;
}

.map-stage-button.is-compact .map-stage-name {
  display: none;
}

.map-stage-button.is-compact .map-stage-index {
  margin-right: 0;
}

.map-date-label-html {
  position: absolute;
  top: 3px;
  z-index: 3;
  color: var(--muted);
  font: 650 0.68rem/1.2 var(--system);
  white-space: nowrap;
  pointer-events: none;
  transform: translateX(-50%);
}

.map-lane-label-html {
  position: absolute;
  left: 0;
  z-index: 4;
  display: flex;
  width: min(14rem, 100%);
  height: 18px;
  min-height: 0;
  align-items: center;
  padding: 0 1.1rem 0 0.65rem;
  color: var(--ink);
  background: linear-gradient(90deg, var(--card) 76%, transparent);
  font: 650 0.72rem/18px var(--system);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  pointer-events: none;
  /* The label occupies the gap above its row, clear of each 44px marker control. */
  transform: translateY(calc(-100% - 25px));
}

.timeline-overlay [hidden] {
  display: none !important;
}

.map-dot {
  display: block;
  width: 12px;
  height: 12px;
  border: 1.5px solid var(--marker-outline);
  border-radius: 50%;
  background: var(--substantive);
  transition: transform 120ms ease, opacity 120ms ease;
}

.map-record-button.pivotal .map-dot {
  width: 18px;
  height: 18px;
  background: var(--pivotal);
  box-shadow: 0 0 0 2px var(--card), 0 0 0 4px var(--pivotal);
}

.map-record-button.pivotal {
  color: var(--pivotal);
}

.map-record-button.substantive .map-dot {
  background: var(--substantive);
}

.map-record-button.substantive {
  color: var(--substantive);
}

.map-record-button.incremental .map-dot {
  background: var(--incremental);
}

.map-record-button.incremental {
  color: var(--incremental);
}

.map-record-button.packaging .map-dot {
  background: var(--packaging);
}

.map-record-button.packaging {
  color: var(--packaging);
}

.map-record-button.superfluous .map-dot {
  background: var(--superfluous);
}

.map-record-button.superfluous {
  color: var(--superfluous);
}

.map-record-button.failed .map-dot {
  background: var(--failed);
}

.map-record-button.failed {
  color: var(--failed);
}

.map-record-button.manual .map-dot {
  background: var(--manual);
}

.map-record-button.manual {
  color: var(--manual);
}

.record-class-marker.pivotal,
.timeline-legend-dot.pivotal {
  width: 0.76rem;
  height: 0.76rem;
  border-color: var(--marker-outline);
  background: var(--pivotal);
  box-shadow: 0 0 0 1.5px var(--card), 0 0 0 3px var(--pivotal);
}

.record-class-marker.substantive,
.timeline-legend-dot.substantive {
  background: var(--substantive);
}

.record-class-marker.incremental,
.timeline-legend-dot.incremental,
.map-record-button.incremental .map-dot {
  border: 2px solid var(--incremental);
  border-radius: 50%;
  background: var(--card);
  box-shadow: 0 0 0 1px var(--marker-outline);
}

.record-class-marker.packaging,
.timeline-legend-dot.packaging,
.map-record-button.packaging .map-dot {
  border: 1.5px solid var(--marker-outline);
  border-radius: 1px;
  background: var(--packaging);
}

.record-class-marker.superfluous,
.timeline-legend-dot.superfluous {
  height: 0.3rem;
  border: 1px solid var(--marker-outline);
  border-radius: 999px;
  background: var(--superfluous);
}

.map-record-button.superfluous .map-dot {
  width: 14px;
  height: 5px;
  border: 1px solid var(--marker-outline);
  border-radius: 999px;
  background: var(--superfluous);
}

.record-class-marker.failed,
.timeline-legend-dot.failed,
.map-record-button.failed .map-dot {
  border: 0;
  border-radius: 0;
  background: var(--failed);
  clip-path: polygon(0 0, 100% 0, 50% 100%);
  filter: drop-shadow(1px 0 0 var(--marker-outline)) drop-shadow(-1px 0 0 var(--marker-outline)) drop-shadow(0 1px 0 var(--marker-outline));
}

.record-class-marker.manual,
.timeline-legend-dot.manual,
.map-record-button.manual .map-dot {
  border: 0;
  border-radius: 0;
  background: var(--manual);
  clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%);
  filter: drop-shadow(1px 0 0 var(--marker-outline)) drop-shadow(-1px 0 0 var(--marker-outline)) drop-shadow(0 1px 0 var(--marker-outline)) drop-shadow(0 -1px 0 var(--marker-outline));
}

.timeline-legend-dot.artifact {
  border-radius: 1px;
  background: var(--artifact);
  transform: rotate(45deg) scale(0.82);
}

.map-record-button:hover .map-dot,
.map-record-button:focus-visible .map-dot {
  transform: scale(1.45);
}

.map-record-button.is-filtered {
  opacity: 0.08;
  pointer-events: none;
}

.map-record-button.is-selected .map-dot {
  box-shadow: 0 0 0 3px var(--card), 0 0 0 5px currentColor;
}

.map-record-button.is-selected {
  outline: 2px solid currentColor;
  outline-offset: -9px;
}

.map-event-diamond {
  width: 12px;
  height: 12px;
  border: 1px solid var(--ink);
  background: var(--artifact);
  transform: rotate(45deg);
}

.lane-label {
  position: absolute;
  left: 0;
  z-index: 5;
  display: flex;
  width: 9.5rem;
  height: 60px;
  flex-direction: column;
  justify-content: center;
  padding-left: 0.65rem;
  color: var(--muted);
  background: linear-gradient(90deg, var(--card) 76%, transparent);
  font: 0.72rem/1.3 var(--system);
  pointer-events: none;
}

.lane-label b {
  color: var(--ink);
  font-size: 0.78rem;
}

.node {
  position: absolute;
  width: 0.82rem;
  height: 0.82rem;
  padding: 0;
  border: 1.5px solid color-mix(in srgb, var(--ink) 45%, transparent);
  border-radius: 50%;
  cursor: pointer;
  transform: translate(-50%, -50%);
  transition: transform 120ms ease, opacity 120ms ease;
}

.node:hover,
.node:focus-visible {
  z-index: 20;
  transform: translate(-50%, -50%) scale(1.45);
}

.node.pivotal {
  width: 1.12rem;
  height: 1.12rem;
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--pivotal) 30%, transparent);
}

.node.sel {
  z-index: 30;
  box-shadow: 0 0 0 3px var(--card), 0 0 0 5px currentColor;
}

.node.dim {
  opacity: 0.1;
  pointer-events: none;
}

.node.event {
  width: 0;
  height: 0;
  border: 0;
}

.node.event .diamond {
  width: 0.72rem;
  height: 0.72rem;
  border: 1px solid var(--ink);
  background: var(--artifact);
  transform: rotate(45deg);
}

.timelabel {
  position: absolute;
  top: 0.3rem;
  z-index: 4;
  color: var(--muted);
  font: 0.68rem/1 var(--system);
  transform: translateX(-50%);
}

.axis-tick {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: color-mix(in srgb, var(--line) 75%, transparent);
}

.zoombar {
  position: absolute;
  bottom: 0.75rem;
  left: 10rem;
  z-index: 6;
  display: flex;
  gap: 0.35rem;
}

.zoombar button {
  min-width: 2.5rem;
  padding: 0.4rem 0.65rem;
  box-shadow: 0 2px 8px var(--shadow);
}

.zoombar .fit-button {
  width: auto;
}

#tlhelp {
  position: absolute;
  right: 0.8rem;
  bottom: 0.8rem;
  z-index: 6;
  max-width: 25rem;
  margin: 0;
  padding: 0.35rem 0.5rem;
  border-radius: 4px;
  color: var(--muted);
  background: color-mix(in srgb, var(--card) 88%, transparent);
  font: 0.72rem/1.35 var(--system);
}

.view-heading {
  max-width: 46rem;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--line);
}

.record-list {
  margin-top: 0.75rem;
}

.key-stage + .key-stage {
  margin-top: 1.75rem;
}

.key-stage-header {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  align-items: baseline;
  justify-content: space-between;
  padding: 0.7rem 0.75rem;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line);
}

.key-stage-heading {
  margin: 0;
  font: 700 1.05rem/1.35 var(--system);
  letter-spacing: 0;
}

.key-stage-date {
  margin: 0;
  color: var(--muted);
  font: 0.78rem/1.35 var(--system);
  letter-spacing: 0;
}

.key-stage-records {
  padding-bottom: 0.25rem;
}

.record-group {
  border-bottom: 1px solid var(--line);
}

.record-group-toggle {
  position: sticky;
  top: 0;
  z-index: 2;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0.6rem;
  align-items: center;
  width: 100%;
  min-height: 2.9rem;
  padding: 0.6rem 0.75rem;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  color: var(--ink);
  background: color-mix(in srgb, var(--paper) 94%, transparent);
  text-align: left;
  cursor: pointer;
  backdrop-filter: blur(8px);
}

.record-group-toggle:hover {
  color: var(--accent);
}

.record-group-title {
  font-weight: 700;
}

.record-group-count {
  color: var(--muted);
  font: 0.75rem/1.3 var(--system);
  font-variant-numeric: tabular-nums;
}

.record-rows {
  padding: 0.2rem 0 0.65rem;
}

.lane-sec {
  margin-bottom: 0.6rem;
}

.lane-hd {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  min-height: 2.9rem;
  align-items: center;
  gap: 0.55rem;
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 94%, transparent);
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  backdrop-filter: blur(8px);
}

.lane-hd:hover {
  color: var(--accent);
}

.lane-hd .lh-title {
  font-weight: 700;
}

.lane-hd .lh-meta,
.lane-hd .caret {
  color: var(--muted);
  font: 0.75rem/1.3 var(--system);
}

.lane-hd .bar {
  display: inline-flex;
  min-width: 7.5rem;
  height: 0.45rem;
  margin-left: auto;
  overflow: hidden;
  border-radius: 4px;
}

.lane-hd .bar i {
  display: block;
  height: 100%;
}

.rows {
  padding: 0.2rem 0 0.65rem;
}

.row,
.record-row,
.mobile-record {
  position: relative;
  display: grid;
  grid-template-columns: 0.8rem 4.2rem minmax(0, 1fr) auto;
  gap: 0.6rem;
  align-items: baseline;
  width: 100%;
  min-height: 2.75rem;
  padding: 0.55rem 0.75rem;
  border: 0;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 72%, transparent);
  border-left: 3px solid transparent;
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

.stage-button:focus-within,
.record-row:focus-within {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.row:hover,
.record-row:hover,
.mobile-record:hover {
  background: color-mix(in srgb, var(--accent) 5%, transparent);
}

.row.piv,
.record-row.pivotal {
  border-left-color: var(--pivotal);
}

.row.sel,
.record-row[aria-current="true"] {
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

.row .dot,
.record-dot,
.record-class-marker {
  display: inline-block;
  flex: 0 0 auto;
  width: 0.62rem;
  height: 0.62rem;
  border: 1.5px solid var(--marker-outline);
  border-radius: 50%;
  background: var(--substantive);
  transform: translateY(0.08rem);
}

.row .tno,
.record-number,
.record-turn {
  color: var(--muted);
  font: 0.74rem/1.4 var(--system);
  font-variant-numeric: tabular-nums;
}

.row .rsum,
.record-summary {
  min-width: 0;
  font-family: var(--serif);
  font-size: 0.96rem;
}

.row.piv .rsum,
.record-row.pivotal .record-summary {
  font-weight: 700;
}

.row .rmeta,
.record-meta {
  color: var(--muted);
  font: 0.72rem/1.4 var(--system);
  white-space: nowrap;
}

.record-model {
  grid-column: 3 / -1;
  color: var(--accent);
  font: 650 0.72rem/1.4 var(--system);
}

.record-reason {
  grid-column: 3 / -1;
  margin-top: -0.15rem;
  color: var(--muted);
  font: 0.78rem/1.4 var(--system);
}

.record-term-note {
  grid-column: 3 / -1;
  color: var(--muted);
  font: 0.75rem/1.4 var(--system);
}

.candidate-detail-link {
  white-space: nowrap;
}

.row.hidden {
  display: none;
}

.lane-empty,
.empty-state,
.hint {
  padding: 0.75rem;
  color: var(--muted);
}

.detail-backdrop {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: rgba(0, 0, 0, 0.35);
}

.record-detail {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 100;
  display: flex;
  width: min(45rem, 62vw);
  flex-direction: column;
  overflow-y: auto;
  border-left: 1px solid var(--line);
  background: var(--card);
  box-shadow: -12px 0 32px var(--shadow);
  transform: translateX(105%);
  visibility: hidden;
  transition: transform 180ms ease, visibility 180ms step-end;
}

.record-detail.open {
  transform: translateX(0);
  visibility: visible;
  transition: transform 180ms ease, visibility 0ms;
}

.record-detail .dhead {
  position: sticky;
  top: 0;
  z-index: 2;
  padding: 1rem 1.2rem;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--card) 96%, transparent);
  backdrop-filter: blur(10px);
}

.record-detail .drow {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
}

.record-detail h2 {
  margin: 0;
  font-size: 1.25rem;
  line-height: 1.28;
}

.record-detail .badge {
  display: inline-block;
  margin-right: 0.35rem;
  padding: 0.18rem 0.48rem;
  border-radius: 999px;
  color: var(--card);
  font: 700 0.65rem/1.3 var(--system);
  letter-spacing: 0;
  text-transform: uppercase;
  vertical-align: 0.12em;
}

.record-detail .meta,
.record-detail .why {
  margin-top: 0.4rem;
  color: var(--muted);
  font: 0.78rem/1.4 var(--system);
}

.record-detail .why {
  font-style: italic;
}

.icon-button {
  flex: 0 0 auto;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 50%;
  background: transparent;
  color: var(--muted);
  font-size: 1.65rem;
  cursor: pointer;
}

.icon-button:hover {
  border-color: var(--line-strong);
  color: var(--ink);
}

.navbtns {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  margin-top: 0.85rem;
}

.navbtns button:disabled {
  opacity: 0.4;
  cursor: default;
}

.navbtns .pos {
  margin-left: auto;
  color: var(--muted);
  font: 0.75rem/1.4 var(--system);
}

.record-detail .srcnote {
  margin: 1rem 1.2rem 0;
  padding: 0.65rem 0.75rem;
  border-left: 3px solid var(--accent);
  color: var(--muted);
  background: var(--panel);
  font: 0.78rem/1.45 var(--system);
}

.record-detail .detail-terms {
  margin: 1rem 1.2rem 0;
  padding: 0.75rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.record-detail .detail-terms h3 {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.3;
}

.record-detail .detail-terms p {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font: 0.82rem/1.5 var(--system);
}

.record-detail .body {
  width: 100%;
  min-width: 0;
  max-width: 100%;
  padding: 0 1.3rem 3rem;
  overflow-x: hidden;
  overflow-wrap: anywhere;
  font-size: 1rem;
  line-height: 1.62;
}

.record-detail .body h1,
.record-detail .body h2,
.record-detail .body h3 {
  line-height: 1.25;
}

.record-detail .body pre {
  max-width: 100%;
  padding: 0.8rem;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  font-size: 0.82rem;
}

.record-detail .body code {
  padding: 0.08rem 0.25rem;
  border-radius: 3px;
  background: var(--panel);
}

.record-detail .body .katex-display {
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
}

.record-detail .body .katex:not(.katex-display) {
  display: inline-block;
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  vertical-align: middle;
}

.record-detail .body table {
  display: block;
  max-width: 100%;
  overflow-x: auto;
}

.record-detail .msg {
  min-width: 0;
  max-width: 100%;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.record-detail .msg .rolelbl {
  margin-bottom: 0.5rem;
  color: var(--accent);
  font: 700 0.7rem/1.3 var(--system);
  letter-spacing: 0;
  text-transform: uppercase;
}

.record-detail .msg.user {
  color: color-mix(in srgb, var(--ink) 86%, var(--muted));
}

.attachment-unavailable,
.link-unpublished {
  display: inline-flex;
  align-items: baseline;
  gap: 0.3rem;
  color: var(--muted);
  font-family: var(--system);
  font-size: 0.85em;
}

.attachment-unavailable::before,
.link-unpublished::before {
  content: "[";
}

.attachment-unavailable::after,
.link-unpublished::after {
  content: "]";
}

.transcript-plain {
  white-space: pre-wrap;
}

.content-error {
  padding: 0.85rem;
  border-left: 3px solid var(--failed);
  color: var(--failed);
  background: var(--panel);
}

#tooltip {
  position: fixed;
  z-index: 200;
  display: block;
  max-width: min(22rem, calc(100vw - 2rem));
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  color: var(--ink);
  background: var(--card);
  box-shadow: 0 6px 20px var(--shadow);
  font: 0.78rem/1.4 var(--system);
  pointer-events: none;
}

#tooltip .tt-turn {
  color: var(--muted);
  font-size: 0.7rem;
}

#tooltip .tooltip-term-note {
  display: block;
  margin-top: 0.35rem;
  padding-top: 0.35rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.project-footer {
  width: min(68rem, 100%);
  margin: 3.2rem auto 0;
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
}

.project-footer p {
  margin: 0;
}

.project-footer a {
  color: var(--ink);
  text-decoration-color: color-mix(in srgb, var(--accent) 55%, transparent);
}

.project-footer .pf-credit {
  white-space: nowrap;
}

.project-footer .pf-glyph {
  width: 1.15em;
  height: 1.15em;
  margin-right: 0.25em;
  vertical-align: -0.22em;
}

@media (max-width: 1024px) {
  .dashboard-shell {
    padding-top: 1.25rem;
  }

  .timeline-view {
    grid-template-columns: 13rem minmax(0, 1fr);
  }

  .filter-groups {
    grid-template-columns: 1fr;
  }

  .record-detail {
    width: min(48rem, 78vw);
  }
}

@media (max-width: 767px) {
  .key-stage-date {
    flex-basis: 100%;
  }

  .timeline-vertical {
    display: block;
  }
}

@media (max-width: 767px) {
  .dashboard-shell {
    width: 100%;
    padding: 1.25rem 1rem 3rem;
  }

  .dashboard-header h1 {
    font-size: 2rem;
  }

  .lede {
    font-size: 1rem;
  }

  .view-tabs {
    margin-right: -1rem;
    margin-left: -1rem;
  }

  .tab-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    overflow: visible;
  }

  .view-tab {
    min-width: 0;
    min-height: 2.75rem;
    padding: 0.65rem 0.25rem;
    font-size: 0.8rem;
    line-height: 1.15;
    overflow-wrap: anywhere;
    white-space: normal;
  }

  .record-controls {
    grid-template-columns: 1fr;
  }

  .filter-drawer,
  .filter-drawer[open] {
    grid-column: 1;
  }

  .filter-drawer > summary {
    width: 100%;
    justify-content: center;
  }

  .filter-groups {
    padding: 0.85rem;
  }

  .text-button,
  .seg button,
  .filter-options button,
  .legend span,
  .navbtns button,
  .zoombar button,
  .date-range input {
    min-height: 44px;
  }

  .seg button {
    min-width: 44px;
  }

  .timeline-view {
    display: block;
  }

  .stage-index {
    position: static;
    max-height: none;
    margin-bottom: 1.25rem;
    padding: 0 0 0.7rem;
    overflow: visible;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .stage-index-heading p {
    margin-bottom: 0.65rem;
  }

  .stage-list {
    display: flex;
    gap: 0;
    margin-right: -1rem;
    overflow-x: auto;
    border-top: 0;
    scrollbar-width: thin;
    scroll-snap-type: x proximity;
  }

  .chapter,
  .stage-button {
    flex: 0 0 14rem;
    min-height: 6.5rem;
    padding: 0.7rem 0.85rem;
    border: 1px solid var(--line);
    border-right: 0;
    scroll-snap-align: start;
  }

  .chapter:last-child,
  .stage-button:last-child {
    border-right: 1px solid var(--line);
  }

  .chapter.active,
  .stage-button.is-selected {
    box-shadow: inset 0 -3px 0 var(--accent);
    padding-left: 0.85rem;
  }

  .stage-summary {
    min-height: 0;
  }

  .timeline-tools {
    display: block;
  }

  .date-range {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
  }

  .date-range legend {
    grid-column: 1 / -1;
  }

  .date-range #fitRangeBtn {
    grid-column: 1 / -1;
  }

  .mobile-map-toggle {
    display: inline-flex;
    width: 100%;
    align-items: center;
    justify-content: center;
    margin-top: 0.75rem;
  }

  .mobile-timeline {
    display: block;
    margin-top: 1rem;
  }

  .mobile-stage {
    position: relative;
    padding: 0 0 1.5rem 1.5rem;
  }

  .mobile-stage::before {
    position: absolute;
    top: 0.35rem;
    bottom: 0;
    left: 0.35rem;
    width: 1px;
    background: var(--line-strong);
    content: "";
  }

  .mobile-stage > h3 {
    margin: 0 0 0.45rem;
    font-size: 1.05rem;
  }

  .mobile-stage-heading {
    margin: 0 0 0.45rem;
    font-size: 1.05rem;
    line-height: 1.3;
  }

  .mobile-stage-records {
    margin: 0;
    padding: 0;
  }

  .mobile-record {
    position: relative;
    grid-template-columns: 3.6rem minmax(0, 1fr);
    padding-right: 0;
    padding-left: 0;
  }

  .mobile-record::before {
    content: none;
  }

  .mobile-record > .record-class-marker {
    position: absolute;
    top: 1rem;
    left: -1.48rem;
    z-index: 1;
    transform: none;
  }

  .mobile-record > .record-class-marker.pivotal {
    top: 0.94rem;
    left: -1.55rem;
  }

  .mobile-record .record-turn {
    grid-column: 1;
  }

  .mobile-record .record-summary,
  .mobile-record .record-meta,
  .mobile-record .record-term-note,
  .mobile-record .record-reason {
    grid-column: 2;
  }

  .mobile-event {
    position: relative;
    display: block;
    width: 100%;
    min-height: 44px;
    padding: 0.55rem 0;
    border: 0;
    border-bottom: 1px solid color-mix(in srgb, var(--line) 72%, transparent);
    background: transparent;
    color: var(--ink);
    font-family: var(--serif);
    text-align: left;
    cursor: pointer;
  }

  .mobile-event::before {
    position: absolute;
    top: 1rem;
    left: -1.42rem;
    width: 0.62rem;
    height: 0.62rem;
    border: 1px solid var(--ink);
    background: var(--artifact);
    content: "";
    transform: rotate(45deg);
  }

  .timeline-map {
    display: none;
    height: 34rem;
    margin-top: 1rem;
  }

  .timeline-view.map-open .timeline-map,
  .timeline-map.mobile-open,
  .timeline-map[data-mobile-open="true"] {
    display: block;
  }

  .zoombar {
    left: 0.65rem;
  }

  #tlhelp {
    right: 0.55rem;
    bottom: 3.8rem;
    left: 0.55rem;
    max-width: none;
  }

  .row,
  .record-row {
    grid-template-columns: 0.7rem 3.4rem minmax(0, 1fr);
  }

  .row .rmeta,
  .record-meta {
    grid-column: 3;
    white-space: normal;
  }

  .lane-hd .bar {
    display: none;
  }

  .record-detail {
    width: 100vw;
    border-left: 0;
  }

  .record-detail .dhead {
    padding: 0.85rem 1rem;
  }

  .record-detail .srcnote {
    margin-right: 1rem;
    margin-left: 1rem;
  }

  .record-detail .detail-terms {
    margin-right: 1rem;
    margin-left: 1rem;
  }

  .record-detail .body {
    padding-right: 1rem;
    padding-left: 1rem;
    font-size: 0.96rem;
  }

  .navbtns .pos {
    width: 100%;
    margin-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media (forced-colors: active) {
  .view-tab.on,
  .view-tab[aria-selected="true"],
  .seg button.on,
  .seg button[aria-pressed="true"],
  .filter-options button[aria-pressed="true"] {
    border-color: Highlight;
    color: HighlightText;
    background: Highlight;
  }

  .node,
  .map-dot,
  .record-dot,
  .record-class-marker,
  .timeline-legend-dot,
  .legend i {
    border-color: CanvasText;
    color: CanvasText;
    background: CanvasText;
    filter: none;
    forced-color-adjust: auto;
  }

  .record-class-marker.incremental,
  .timeline-legend-dot.incremental,
  .map-record-button.incremental .map-dot {
    border-color: CanvasText;
    background: Canvas;
    box-shadow: 0 0 0 1px CanvasText;
  }

  .record-class-marker.pivotal,
  .timeline-legend-dot.pivotal,
  .map-record-button.pivotal .map-dot {
    box-shadow: 0 0 0 1px Canvas, 0 0 0 3px CanvasText;
  }

  .map-record-button.is-selected {
    outline-color: Highlight;
  }

  .record-detail,
  .timeline-map,
  .filter-groups {
    border: 1px solid CanvasText;
  }
}