:root {
  color-scheme: light;
  --page: #f6f6f5;
  --surface: #fff;
  --ink: #242729;
  --muted: #62686c;
  --line: #dcdedd;
  --subtle: #f1f2f1;
  --red: #a63631;
  --red-wash: #faf0ef;
  --focus: #42494b;
  --radius: 3px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; color: var(--ink); background: var(--page); font: 14px/1.5 var(--font); -webkit-font-smoothing: antialiased; }
button, input, select, textarea { font: inherit; color: inherit; border-radius: var(--radius); }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .45; }
a { color: inherit; }
h1, h2, h3, h4, p { margin: 0; }
h4 { font-size: 13px; font-weight: 600; }
h1 { font-size: 20px; line-height: 1.3; font-weight: 650; }
h2 { font-size: 20px; line-height: 1.4; font-weight: 650; }
h3 { font-size: 14px; font-weight: 650; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible, [tabindex]:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }
.icon { display: block; width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
button svg { pointer-events: none; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: -60px; left: 16px; z-index: 200; padding: 10px 16px; background: var(--ink); color: white; }
.skip-link:focus { top: 12px; }
.app-header { padding: 20px 24px; border-bottom: 1px solid var(--line); background: var(--surface); }
.header-inner { display: flex; justify-content: space-between; align-items: center; gap: 24px; width: min(1440px, 100%); margin: auto; }
.header-inner h1 { display: flex; align-items: center; gap: 10px; font-size: 18px; white-space: nowrap; }
.connection { color: var(--muted); font-size: 12px; text-align: right; }
main { width: min(1440px, calc(100% - 48px)); margin: 28px auto 48px; }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 38px; padding: 7px 12px; border: 1px solid #babfbd; background: white; font-size: 13px; font-weight: 550; text-decoration: none; white-space: nowrap; }
.button:hover:not(:disabled) { background: var(--subtle); border-color: #8c9390; }
.button.primary { color: white; background: var(--ink); border-color: var(--ink); }
.button.primary:hover:not(:disabled) { background: #424748; }
.text-button { padding: 4px 0; border: 0; background: transparent; color: var(--ink); text-decoration: underline; text-underline-offset: 3px; font-size: 12px; }
.text-button:hover { color: var(--muted); }
.icon-button { padding: 8px; }
.input-panel { padding: 24px; }
.panel-heading, .results-heading, .review-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; }
.panel-heading { margin-bottom: 22px; }
.panel-heading p, .results-heading p, .review-heading p { color: var(--muted); font-size: 13px; margin-top: 5px; }
.input-tabs { display: flex; gap: 24px; border-bottom: 1px solid var(--line); margin-bottom: 20px; }
.input-tabs button { padding: 9px 0; background: none; border: 0; border-bottom: 2px solid transparent; border-radius: 0; color: var(--muted); }
.input-tabs button.active { color: var(--ink); border-bottom-color: var(--ink); }
.dropzone { display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 12px; padding: 28px 16px; min-height: 178px; border: 1px dashed #a6ada9; border-radius: var(--radius); cursor: pointer; text-align: center; }
.dropzone:hover, .dropzone.dragging, .dropzone:focus-within { background: var(--subtle); border-color: var(--ink); }
.dropzone:focus-within { outline: 2px solid var(--focus); outline-offset: 3px; }
.dropzone strong { font-size: 14px; }
.dropzone strong > span { font-weight: 400; }
.dropzone > span:last-of-type { font-size: 12px; color: var(--muted); }
.selected-file { display: flex; align-items: center; gap: 16px; padding: 16px; border: 1px solid var(--line); background: var(--subtle); border-radius: var(--radius); }
.selected-file > div { min-width: 0; }
.selected-file strong { display: block; overflow-wrap: anywhere; }
.selected-file span { display: block; color: var(--muted); font-size: 12px; margin-top: 3px; }
.selected-file button { margin-left: auto; }
.file-preview, .raw-log { padding: 14px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--subtle); font: 12px/1.7 var(--mono); white-space: pre-wrap; overflow-wrap: anywhere; }
.file-preview { max-height: 138px; overflow: auto; color: var(--muted); margin: 12px 0 0; }
.field-label { display: block; margin-bottom: 7px; font-size: 13px; font-weight: 550; }
.field-hint { margin-top: 5px; color: var(--muted); font-size: 12px; }
textarea { display: block; width: 100%; min-height: 160px; padding: 12px; resize: vertical; background: white; border: 1px solid #b6bcb8; font: 13px/1.7 var(--mono); }
textarea::placeholder, input::placeholder { color: #717976; opacity: 1; }
select, input[type="number"], input[type="search"] { min-height: 38px; padding: 7px 10px; background: white; border: 1px solid #b6bcb8; }
select { padding-right: 28px; }
.analysis-controls { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; margin-top: 20px; }
.model-field { flex: 1; max-width: 360px; min-width: 0; }
.model-field select { width: 100%; }
.model-help { margin-top: 9px; max-width: 680px; color: var(--muted); font-size: 13px; }
.model-setup { margin-top: 12px; font-size: 13px; color: var(--muted); }
summary { cursor: pointer; width: fit-content; }
.model-setup p { max-width: 780px; margin-top: 10px; }
code { font: 12px var(--mono); overflow-wrap: anywhere; }
.input-footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-top: 18px; margin-top: 18px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.error-message { padding: 12px 16px; border: 1px solid #d1a8a4; border-radius: var(--radius); background: var(--red-wash); color: var(--red); margin-bottom: 16px; white-space: pre-wrap; overflow-wrap: anywhere; }
#analyze-error { margin: 16px 0 0; }
.processing-progress { margin-top: 20px; padding: 16px; border: 1px solid var(--line); border-radius: var(--radius); }
.progress-heading { display: flex; justify-content: space-between; gap: 12px; font-size: 13px; }
.processing-progress progress { display: block; width: 100%; height: 8px; margin: 12px 0; accent-color: var(--ink); }
.processing-progress p { color: var(--muted); font-size: 12px; }
.results-heading { margin-bottom: 20px; }
.results-heading > div { min-width: 0; }
.results-heading h2 { overflow-wrap: anywhere; }
.run-notice { padding: 12px 16px; border: 1px solid var(--line); background: var(--surface); border-radius: var(--radius); margin-bottom: 20px; color: var(--muted); font-size: 13px; }
.run-notice.warn-run, .run-notice.external-run { color: #72501e; border-color: #d6c39e; background: #faf7ef; }

/* Investigation overview */
.overview-intro { max-width: 760px; margin: 0 0 22px; }
.overview-intro > p:first-child { font-size: 16px; }
.overview-filters { display: grid; grid-template-columns: minmax(240px, 1fr) minmax(180px, 280px) auto; align-items: end; gap: 16px; }
.overview-filters > label { display: grid; gap: 6px; min-width: 0; font-size: 12px; font-weight: 550; }
.overview-filters input, .overview-filters select { width: 100%; min-width: 0; }
.cutoff-input { display: flex; align-items: center; gap: 7px; white-space: nowrap; color: var(--muted); font-weight: 400; }
.cutoff-input input { width: 106px; color: var(--ink); font-variant-numeric: tabular-nums; }
.overview-filter-help { margin: 9px 0 22px; }
.overview-activity { margin-bottom: 26px; }
.section-heading { display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: 10px 18px; padding: 16px 20px; }
.checkbox-label { display: inline-flex; gap: 7px; align-items: center; color: var(--muted); font-size: 12px; cursor: pointer; }
.checkbox-label input { margin: 0; width: 15px; height: 15px; accent-color: var(--ink); }
.activity-chart { position: relative; padding: 0 16px 8px; }
.chart-caption { padding: 0 20px 14px; color: var(--muted); font-size: 12px; }
.chart-empty { display: grid; min-height: 110px; place-items: center; padding: 22px; color: var(--muted); text-align: center; }
.overview-list-heading { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 8px 20px; margin-bottom: 12px; }
.overview-list-heading > p { font-size: 12px; color: var(--muted); }
.investigation-list { border-top: 1px solid var(--line); }
.investigation-card { padding: 22px; border: 1px solid var(--line); border-top: 0; background: var(--surface); }
.investigation-card-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 8px; }
.investigation-card-heading > div { min-width: 0; }
.investigation-card h3 { font-size: 17px; overflow-wrap: anywhere; }
.investigation-card-meta { font-size: 12px; color: var(--muted); overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }
.investigation-card-heading .investigation-card-meta { margin-top: 3px; }
.investigation-progression { margin-top: 14px; font: 12px/1.9 var(--mono); overflow-wrap: anywhere; }
.investigation-progression > span { display: inline-block; padding: 0 7px; color: var(--muted); }
.investigation-models { margin-top: 10px; color: var(--muted); font-size: 12px; }
.overview-pagination { display: flex; justify-content: flex-end; align-items: center; gap: 14px; margin-top: 16px; font-size: 12px; color: var(--muted); }
.overview-pagination > span { font-variant-numeric: tabular-nums; }
.empty-state { padding: 24px 16px; color: var(--muted); font-size: 13px; }

/* The reconstruction remains visible while its evidence changes. */
.workspace-toolbar { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; padding: 2px 0 20px; border-bottom: 1px solid var(--line); }
.export-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.investigation-heading { margin: 24px 0 18px; }
.investigation-heading h2 { font-size: 25px; letter-spacing: -.02em; overflow-wrap: anywhere; }
.investigation-heading p { margin-top: 6px; color: var(--muted); font-size: 13px; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.investigation-summary { max-width: 1050px; }
.investigation-summary > p { margin-top: 6px; font-size: 15px; line-height: 1.7; }
.investigation-summary > .field-hint { font-size: 12px; }
.investigation-summary .text-button { font: inherit; text-align: left; overflow-wrap: anywhere; }
.evidence-kind { display: block; color: var(--muted); font-size: 10px; font-weight: 650; text-transform: uppercase; letter-spacing: .07em; }
.grouping-details { margin: 14px 0 28px; color: var(--muted); font-size: 12px; }
.grouping-details > p { max-width: 900px; margin-top: 8px; line-height: 1.7; }
.investigation-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(420px, 1fr); gap: 26px; align-items: start; }
.story-column { min-width: 0; }
.story-workspace { min-width: 0; }
.timeline-heading { padding: 0 0 12px; }
.timeline-heading h3 { font-size: 16px; }
.timeline-legend { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px; margin-bottom: 14px; font-size: 11px; color: var(--muted); }
.timeline-legend > span { display: inline-flex; align-items: center; gap: 6px; }
.timeline-legend > .text-button { margin-left: auto; font-size: 11px; }
.candidate-key, .context-key { width: 7px; height: 7px; background: var(--red); }
.context-key { background: #8d9491; }
.episode-list { border-top: 1px solid var(--line); }
.episode { position: relative; background: var(--surface); border: 1px solid var(--line); border-top: 0; }
.episode[open] { margin-bottom: 12px; }
.episode[open] + .episode { border-top: 1px solid var(--line); }
.episode.selected { border-color: #8e9692; }
.episode-summary { position: relative; display: grid; width: 100%; gap: 4px; padding: 18px 18px 18px 38px; list-style: none; }
.episode-summary::-webkit-details-marker { display: none; }
.episode-summary::before { content: "+"; position: absolute; left: 16px; top: 18px; font: 17px/1.4 var(--mono); color: var(--muted); }
.episode[open] > .episode-summary::before { content: "−"; }
.episode-summary:hover { background: var(--subtle); }
.episode.selected > .episode-summary { background: #eceeeb; }
.episode-time { color: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.episode-title { font: 13px/1.6 var(--mono); font-weight: 600; overflow-wrap: anywhere; }
.episode-meta { font-size: 11px; color: var(--muted); }
.episode-actions { display: flex; flex-wrap: wrap; gap: 6px 16px; padding: 0 18px 14px 38px; }
.episode-actions .text-button { font-size: 11px; }
.episode-rename { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; padding: 12px 18px; border-top: 1px solid var(--line); }
.episode-rename label { width: 100%; font-size: 12px; }
.episode-rename input { min-width: 0; flex: 1; padding: 8px 10px; border: 1px solid #b6bcb8; }
.event-list { border-top: 1px solid var(--line); }
.event-row { display: grid; grid-template-columns: 62px minmax(0, 1fr) 34px; gap: 10px; align-items: start; width: 100%; padding: 12px 16px; border: 0; border-bottom: 1px solid #eceeed; border-radius: 0; background: var(--surface); text-align: left; }
.event-row:last-child { border-bottom: 0; }
.event-row:hover { background: var(--subtle); }
.event-row.selected { background: #e7eae6; outline: 1px solid #8e9692; outline-offset: -1px; }
.event-row:focus-visible { position: relative; z-index: 1; outline-offset: -2px; }
.event-time { padding-top: 1px; font: 10px/1.6 var(--mono); color: var(--muted); font-variant-numeric: tabular-nums; }
.event-request { min-width: 0; font: 11px/1.65 var(--mono); overflow-wrap: anywhere; }
.event-request small { display: block; margin-top: 4px; color: var(--muted); font: 10px/1.5 var(--font); }
.event-row.candidate .event-request::before { content: ""; display: inline-block; width: 5px; height: 5px; margin: 0 7px 1px 0; background: var(--red); }
.event-result { padding-top: 1px; font: 11px/1.6 var(--mono); text-align: right; color: var(--muted); }
.event-row.context { color: var(--muted); }
.event-row.context .event-request::before { content: none; }
.event-row.important .event-request, .event-row.promoted .event-request { font-weight: 650; }
.event-row.benign .event-request { color: var(--muted); }
.show-more { margin: 9px 18px 12px; }
.episode-list > .button { margin-top: 14px; }
.baseline-panel { margin-top: 20px; }
.baseline-panel > summary { width: 100%; padding: 16px 18px; font-size: 13px; font-weight: 600; }
#baseline-content { padding: 0 18px 18px; }
.table-scroll { overflow-x: auto; overscroll-behavior-x: contain; }
.baseline-table { width: 100%; min-width: 510px; border-collapse: collapse; margin-top: 14px; font-size: 11px; text-align: left; }
.baseline-table th, .baseline-table td { padding: 11px 10px; border-bottom: 1px solid var(--line); vertical-align: top; overflow-wrap: anywhere; }
.baseline-table th { font-weight: 550; }
.baseline-table thead th { color: var(--muted); background: var(--subtle); font-size: 10px; }
.baseline-table th:first-child { width: 24%; }
.baseline-table td { width: 38%; }
.investigation-note-panel { padding: 18px; margin-top: 20px; }
.investigation-note-panel textarea { margin-top: 12px; min-height: 100px; font: 13px/1.7 var(--font); }
.investigation-note-panel > .field-hint:last-child { margin-top: 9px; }

/* Evidence is a persistent pane, never a modal over the story. */
.evidence-workspace { position: sticky; top: 18px; max-height: calc(100dvh - 36px); overflow-y: auto; scrollbar-gutter: stable; overscroll-behavior-y: contain; min-width: 0; }
.evidence-workspace-heading { position: sticky; top: 0; z-index: 2; padding: 16px 18px; background: var(--surface); border-bottom: 1px solid var(--line); }
.evidence-workspace-heading > h3 { font-size: 15px; }
.model-workspace { padding: 18px; border-bottom: 1px solid var(--line); }
.model-workspace-heading { display: grid; grid-template-columns: 1fr; gap: 10px; }
.model-workspace-heading h3 { font-size: 13px; }
.model-workspace-heading select { width: 100%; min-width: 0; font-size: 12px; }
.model-run-status { color: var(--muted); font-size: 12px; margin-top: 10px; }
.model-run-status:empty { display: none; }
#model-evidence-content { margin-top: 16px; }
#model-evidence-content > p { font-size: 13px; }
#model-evidence-content > .button { margin-top: 12px; max-width: 100%; white-space: normal; }
.observed-evidence { padding: 18px; }
.evidence-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 20px; margin: 14px 0 18px; }
.evidence-fields > div { min-width: 0; }
.evidence-fields dt { color: var(--muted); font-size: 11px; margin-bottom: 4px; }
.evidence-fields dd { margin: 0; font: 12px/1.65 var(--mono); overflow-wrap: anywhere; }
.evidence-section { margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line); }
.evidence-section > summary { color: var(--ink); font-size: 12px; font-weight: 550; line-height: 1.6; }
.evidence-section > p { margin-top: 9px; font-size: 12px; color: var(--muted); }
.evidence-section > .raw-log { margin-top: 10px; font-size: 11px; }
.evidence-actions { display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: end; margin: 18px 0; }
.evidence-actions > label { display: grid; min-width: 0; flex: 1 1 210px; gap: 6px; font-size: 11px; color: var(--muted); }
.evidence-actions select { width: 100%; font-size: 12px; }
.evidence-note { display: block; color: var(--ink); font-size: 12px; }
.analyst-label { color: var(--muted); font-size: 10px; margin-left: 6px; }
.evidence-note textarea { margin-top: 7px; min-height: 76px; font: 12px/1.7 var(--font); }
#evidence-content > h4 { margin-top: 8px; font: 13px/1.7 var(--mono); overflow-wrap: anywhere; }
.related-events { margin-top: 10px; max-height: 280px; overflow-y: auto; border: 1px solid var(--line); }
.related-events > p { padding: 12px; font-size: 12px; color: var(--muted); }
.related-events > .event-row { grid-template-columns: 83px minmax(0,1fr) 26px; gap: 8px; padding: 10px; }
.related-events .event-time { font: 10px/1.6 var(--font); }
.related-events .event-request { font-size: 10px; }
.model-comparison-details { border-top: 1px solid var(--line); padding-top: 14px; margin-top: 16px; font-size: 12px; }
.model-comparison-details > summary { font-weight: 550; }
#model-comparison { margin-top: 12px; }
.model-comparison-list { margin-top: 10px; }
.model-comparison-row { display: flex; gap: 12px; justify-content: space-between; align-items: center; width: 100%; padding: 11px 8px; border: 0; border-bottom: 1px solid var(--line); background: transparent; border-radius: 0; text-align: left; font-size: 11px; }
.model-comparison-row:last-child { border-bottom: 0; }
.model-comparison-row > span:last-child { color: var(--muted); text-align: right; }
.model-comparison-row[aria-pressed="true"] { background: var(--subtle); font-weight: 600; }
.model-comparison-row:hover:not(:disabled) { background: var(--subtle); }

/* Model-specific explanations share typography, not an invented score scale. */
.lens-heading h3 { font-size: 13px; }
.lens-heading > p { font-size: 12px; color: var(--muted); line-height: 1.65; margin-top: 5px; }
.lens-verdict { font-size: 11px; font-weight: 550; margin-top: 12px; }
.lens-verdict.has-candidates { color: var(--red); }
.lens-metrics { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 14px 18px; margin: 16px 0; }
.lens-metric { min-width: 0; }
.lens-metric:first-child { grid-column: 1 / -1; }
.lens-metric dt { color: var(--muted); font-size: 11px; }
.lens-metric dd { margin: 4px 0 0; font: 13px/1.6 var(--mono); overflow-wrap: anywhere; }
.lens-metric dd.lens-metric-note { font: 11px/1.5 var(--font); color: var(--muted); }
.lens-plot { margin: 18px -8px 16px; }
.lens-plot svg { display: block; width: 100%; height: auto; overflow: visible; }
.lens-axis { fill: var(--muted); font: 11px var(--font); }
.lens-bin { fill: #c9cdca; }
.lens-marker { cursor: pointer; }
.lens-marker:focus-visible { outline: none; }
.lens-marker:hover circle, .lens-marker:focus-visible circle { stroke: var(--ink); stroke-width: 2.5; }
.lens-plot figcaption { padding: 2px 8px 0; }
.lens-note, .lens-empty { color: var(--muted); font-size: 11px; line-height: 1.6; }
.lens-detail { padding-top: 12px; margin-top: 12px; border-top: 1px solid var(--line); font-size: 12px; }
.lens-detail > summary { font-size: 12px; }
.lens-detail > p { margin-top: 9px; }
.lens-detail > h4 { margin-top: 14px; }
.lens-triage { margin-top: 16px; }
.lens-triage > p { font-size: 12px; margin-top: 5px; }
.lens-supplied { padding: 10px; background: var(--subtle); font: 11px/1.7 var(--mono); white-space: pre-wrap; overflow-wrap: anywhere; }
.lens-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.toast { position: fixed; z-index: 300; left: 50%; bottom: 24px; transform: translateX(-50%); max-width: calc(100vw - 32px); padding: 12px 16px; border-radius: var(--radius); color: white; background: var(--ink); font-size: 13px; }

@media (min-width: 1440px) {
  .model-workspace-heading { grid-template-columns: auto minmax(0,1fr); align-items: center; gap: 18px; }
}
@media (max-width: 1080px) {
  .investigation-grid { grid-template-columns: minmax(0,1fr) minmax(365px,1fr); gap: 18px; }
  .evidence-fields { gap: 12px; }
  .episode-summary { padding-right: 14px; }
  .event-row { grid-template-columns: 55px minmax(0,1fr) 28px; padding-inline: 12px; gap: 8px; }
}
@media (max-width: 850px) {
  main { width: calc(100% - 32px); margin-top: 20px; }
  .app-header { padding: 16px; }
  .investigation-grid { grid-template-columns: 1fr; }
  .evidence-workspace { position: static; max-height: none; overflow: visible; }
  .evidence-workspace-heading { position: static; }
  .overview-filters { grid-template-columns: minmax(0,1fr) auto; gap: 12px; }
  .overview-search { grid-column: 1 / -1; }
  .model-workspace-heading { grid-template-columns: auto minmax(0,1fr); align-items: center; gap: 18px; }
  .lens-plot { max-width: 630px; }
  .episode-list { scroll-margin-top: 16px; }
}
@media (max-width: 520px) {
  .header-inner { gap: 12px; }
  .connection { max-width: 48%; font-size: 11px; }
  .input-panel { padding: 16px; }
  .panel-heading, .results-heading { flex-wrap: wrap; }
  .analysis-controls { flex-direction: column; align-items: stretch; gap: 16px; }
  .model-field { max-width: none; width: 100%; }
  .analysis-controls .button { width: 100%; }
  .input-footer { flex-wrap: wrap; gap: 10px; }
  .investigation-card { padding: 16px; }
  .investigation-card-heading { flex-wrap: wrap; }
  .investigation-card-heading > .button { min-height: 34px; padding: 6px 9px; font-size: 12px; }
  .section-heading { padding-inline: 14px; }
  .timeline-heading { padding-inline: 0; }
  .chart-caption { padding-inline: 14px; }
  .activity-chart { padding-inline: 6px; }
  .investigation-heading h2 { font-size: 22px; }
  .investigation-summary > p { font-size: 14px; }
  .workspace-toolbar { align-items: flex-start; }
  .export-actions .button { font-size: 12px; }
  .timeline-legend > .text-button { margin-left: 0; }
  .episode-summary { padding-left: 32px; }
  .episode-summary::before { left: 12px; }
  .episode-actions { padding-left: 32px; }
  .model-workspace-heading { grid-template-columns: 1fr; gap: 10px; }
  .observed-evidence, .model-workspace, .evidence-workspace-heading { padding: 16px; }
  .evidence-fields { grid-template-columns: 1fr; gap: 11px; }
  .related-events > .event-row { grid-template-columns: 67px minmax(0,1fr) 26px; }
  .overview-pagination { justify-content: space-between; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

.log-chart-svg { display: block; width: 100%; height: auto; touch-action: pan-y; }
.log-chart-label { fill: var(--muted); font: 12px var(--font); }
.log-chart-grid { stroke: var(--line); stroke-width: 1; }
.log-chart-cutoff { stroke: var(--red); stroke-width: 1; stroke-dasharray: 4 4; }
.log-chart-point { fill: #929997; fill-opacity: .75; stroke: white; stroke-width: 1; }
.log-chart-point.flagged { fill: var(--red); fill-opacity: .85; }
.log-chart-mark { cursor: pointer; outline: none; }
.log-chart-point-hit { fill: transparent; }
.log-chart-mark:hover .log-chart-point, .log-chart-mark:focus-visible .log-chart-point { stroke: var(--ink); stroke-width: 2; fill-opacity: 1; }
.log-chart-bar.total { fill: #a9aeab; }
.log-chart-bar.flagged { fill: var(--red); }
.log-chart-bucket-hit { fill: transparent; cursor: pointer; outline: none; }
.log-chart-bucket-hit:hover, .log-chart-bucket-hit:focus-visible { fill: #24272908; stroke: var(--ink); stroke-width: 1; }
.timeline-cell { fill: var(--red-wash); stroke: #d5aca9; stroke-width: 1; }
.log-chart-mark:hover .timeline-cell, .log-chart-mark:focus-visible .timeline-cell { stroke: var(--ink); stroke-width: 2; }
.timeline-count { fill: var(--red); font: 11px var(--font); font-weight: 600; pointer-events: none; }
.timeline-ip { font: 11px var(--mono); }
.log-chart-legend { display: flex; flex-wrap: wrap; gap: 8px 18px; padding: 4px 0 0 8px; color: var(--muted); font-size: 12px; }
.log-chart-legend > span { display: inline-flex; align-items: center; gap: 6px; }
.log-chart-swatch { display: inline-block; width: 9px; height: 9px; }
.log-chart-swatch.total { background: #a9aeab; }
.log-chart-swatch.flagged { background: var(--red); }
.log-chart-tooltip { position: fixed; z-index: 100; width: 300px; max-width: calc(100vw - 20px); max-height: calc(100dvh - 20px); overflow-y: auto; padding: 12px; border: 1px solid #a7adaa; border-radius: var(--radius); background: white; color: var(--ink); box-shadow: 0 3px 10px #24272915; font-size: 12px; line-height: 1.5; pointer-events: none; }
.log-chart-tooltip.pinned { pointer-events: auto; }
.log-chart-tooltip-title { display: block; margin-bottom: 8px; font-size: 13px; overflow-wrap: anywhere; }
.log-chart-tooltip-values { display: grid; grid-template-columns: auto minmax(0,1fr); gap: 6px 12px; margin: 0; }
.log-chart-tooltip-values dt { color: var(--muted); }
.log-chart-tooltip-values dd { margin: 0; overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }
.log-chart-tooltip-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 12px; padding-top: 10px; border-top: 1px solid var(--line); }
.log-chart-tooltip-actions .button { min-height: 32px; font-size: 12px; }

/* Trace navigation */
.app-header { padding: 0 24px; }
.header-inner { min-height: 80px; gap: 36px; }
.brand { display: inline-flex; align-items: center; gap: 11px; flex-shrink: 0; border: 0; background: none; padding: 0; font-size: 29px; font-weight: 750; letter-spacing: -1.4px; }
.brand-dot { color: #438862; }
.trace-mark { width: 38px; height: 38px; }
.trace-mark rect { fill: #242e2b; }
.trace-mark path { stroke: #b5eccb; stroke-width: 3; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.trace-mark circle { fill: #b5eccb; }
.primary-nav { display: flex; align-self: stretch; gap: 26px; }
.nav-link { position: relative; border: 0; border-radius: 0; background: none; padding: 0 2px; color: var(--muted); font-size: 13px; font-weight: 550; }
.nav-link:hover { color: var(--ink); }
.nav-link[aria-current] { color: var(--ink); }
.nav-link[aria-current]::after { content: ""; position: absolute; height: 3px; background: #438862; bottom: 0; left: 0; right: 0; border-radius: 3px 3px 0 0; }
.header-actions { margin-left: auto; display: flex; align-items: center; gap: 20px; }
.connection { max-width: 170px; }
.eyebrow { display: block; color: #50725e; font-size: 10px; font-weight: 650; text-transform: uppercase; letter-spacing: 1.8px; margin-bottom: 10px; }
.input-panel { max-width: 1000px; margin: 48px auto; padding: 32px; }
#input-title, .page-intro h2, .nav-empty h2 { font-size: clamp(25px, 3vw, 34px); font-weight: 600; letter-spacing: -1px; }
.input-panel .dropzone { min-height: 220px; background: #fafbf9; }
.nav-empty { max-width: 760px; margin: 64px auto; padding: 48px; text-align: center; }
.nav-empty p { color: var(--muted); max-width: 520px; margin: 16px auto 24px; }
.page-intro { margin: 40px 0 28px; }
.page-intro p { margin-top: 10px; color: var(--muted); }
.model-catalog { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.model-card { padding: 24px; display: flex; flex-direction: column; gap: 18px; }
.model-card-heading { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; justify-content: space-between; }
.model-card p { font-size: 13px; color: var(--muted); overflow-wrap: anywhere; }
.model-card .button { align-self: flex-start; margin-top: auto; }
.model-availability { border-radius: 20px; background: var(--subtle); color: var(--muted); font-size: 10px; padding: 3px 8px; }
.model-availability.available { background: #e8f4ec; color: #2d7047; }
@media (max-width: 1050px) {
  .header-inner { gap: 24px; }
  .header-actions .connection { display: none; }
  .model-catalog { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .app-header { padding: 0 16px; }
  .header-inner { flex-wrap: wrap; gap: 0; padding-top: 16px; }
  .brand { font-size: 26px; }
  .trace-mark { width: 32px; height: 32px; }
  .header-actions { margin-left: auto; }
  .header-actions .button { font-size: 11px; padding: 6px 9px; }
  .primary-nav { order: 3; flex-basis: 100%; gap: 28px; height: 52px; margin-top: 10px; }
  .input-panel { margin: 20px auto; padding: 20px; }
  .nav-empty { margin: 24px auto; padding: 28px 20px; }
  .model-catalog { grid-template-columns: 1fr; }
}