.report-page {
  --report-title: clamp(38px, 4.2vw, 56px);
  --report-heading: 32px;
  --report-lead: 21px;
  --report-copy: 18px;
  --report-caption: 14px;
  --report-gap: 32px;
  --report-space: 64px;
  --report-weight: 400;
}
.report-page main { overflow: visible; }
.report-page .skip-link { position: fixed; top: 12px; left: var(--gutter); z-index: 100; background: var(--ink); color: var(--bg); padding: 12px 20px; transform: translateY(-180%); }
.report-page .skip-link:focus { transform: translateY(0); }
.report-page .visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.report-layout { display: grid; grid-template-columns: 210px minmax(0, 800px); gap: 72px; max-width: 1210px; margin: 0 auto; padding: 64px 40px 100px; align-items: start; }
.article-contents { position: sticky; top: 48px; padding-top: 12px; }
.contents-disclosure summary { list-style: none; font-size: 14px; line-height: 1.5; color: var(--muted); cursor: default; padding: 0 12px 14px; }
.contents-disclosure summary::-webkit-details-marker { display: none; }
.contents-disclosure summary>span { display: none; }
.contents-disclosure nav { display: grid; gap: 3px; }
.contents-disclosure nav a { display: block; padding: 7px 12px; font-size: 15px; line-height: 1.45; color: var(--muted); text-decoration: none; border-radius: 4px; }
.contents-disclosure nav a:hover { color: var(--ink); background: var(--surface); }
.contents-disclosure nav a[aria-current="location"] { background: var(--surface); color: var(--ink); font-weight: 500; }
.report-article { min-width: 0; max-width: 800px; }
.report-article .section { display: block; padding: 0; margin: 0 0 var(--report-space); background: transparent; color: var(--ink); }
.report-opening-illustration { max-width: 680px; margin: 0 auto 40px; background: var(--surface); }
.bench-sketch { display: block; width: 100%; height: auto; aspect-ratio: 20 / 13; background: #f1f0eb; }
.sketch-drawing { fill: none; stroke: #343934; stroke-width: 2.6; stroke-linecap: round; stroke-linejoin: round; animation: sketch-arrive 1.7s ease-out both; }
.sketch-ink { fill: none; stroke: #343934; }
.sketch-light { fill: none; stroke: #8b9289; stroke-width: 1.8; opacity: .7; }
.sketch-accent { fill: #c66f4e; stroke: #343934; stroke-width: 2; }
.sketch-board { fill: #ddd5c5; }
.sketch-signals { fill: none; pointer-events: none; }
.sketch-route { fill: none; stroke: #c66f4e; stroke-width: 2.8; stroke-linecap: round; stroke-dasharray: 2 15; opacity: .8; animation: sketch-flow 6s linear infinite; }
.sketch-route-secondary { stroke: #71897b; animation-duration: 5s; animation-direction: reverse; }
.sketch-node { fill: #c66f4e; animation: sketch-node-pulse 3.4s ease-in-out infinite; }
.sketch-node-green { fill: #71897b; animation-delay: -1.1s; }
.sketch-node-amber { fill: #d49b55; animation-delay: -.4s; }
.sketch-pulse { fill: none; stroke: #71897b; stroke-width: 2.5; opacity: 0; transform-box: fill-box; transform-origin: center; animation: sketch-pulse 3.4s ease-out infinite; }
.sketch-traveler { fill: #c66f4e; offset-path: path('M166 311C237 260 283 244 340 244s95 21 145 0 78-31 133-12'); offset-distance: 0%; animation: sketch-travel 6s ease-in-out infinite; }
@keyframes sketch-arrive { from { opacity: 0; stroke-dasharray: 2 22; stroke-dashoffset: 180; } to { opacity: 1; stroke-dasharray: none; stroke-dashoffset: 0; } }
@keyframes sketch-flow { to { stroke-dashoffset: -68; } }
@keyframes sketch-node-pulse { 0%, 100% { transform: scale(.75); opacity: .55; } 45% { transform: scale(1.12); opacity: 1; } }
@keyframes sketch-pulse { 0% { opacity: .7; transform: scale(.45); } 70%, 100% { opacity: 0; transform: scale(1.65); } }
@keyframes sketch-travel { 0% { offset-distance: 0%; opacity: 0; } 10%, 88% { opacity: 1; } 100% { offset-distance: 100%; opacity: 0; } }
.report-article h1, .report-article h2 { font-family: Georgia, 'Times New Roman', serif; font-weight: 400; text-wrap: pretty; }
.report-article h1 { font-size: var(--report-title); line-height: 1.13; letter-spacing: -.045em; margin: 0 0 22px; max-width: 17ch; }
.report-article h2 { font-size: var(--report-heading); line-height: 1.2; letter-spacing: -.03em; margin: 0 0 24px; }
.section-signal { display: inline-block; width: 34px; height: 16px; margin-left: 10px; vertical-align: .12em; color: var(--accent); }
.section-signal svg { display: block; width: 100%; height: 100%; overflow: visible; }
.section-signal path { fill: none; stroke: currentColor; stroke-width: 1; stroke-dasharray: 2 5; animation: section-signal-flow 4s linear infinite; }
.section-signal circle { fill: currentColor; opacity: .5; transform-box: fill-box; transform-origin: center; animation: section-signal-pulse 2.8s ease-in-out infinite; }
.section-signal circle:nth-of-type(2) { animation-delay: -.9s; }
.section-signal circle:nth-of-type(3) { animation-delay: -1.8s; }
@keyframes section-signal-flow { to { stroke-dashoffset: -28; } }
@keyframes section-signal-pulse { 0%, 100% { opacity: .35; transform: scale(.72); } 45% { opacity: 1; transform: scale(1.15); } }
.report-article h3 { font-family: inherit; font-size: 21px; line-height: 1.35; font-weight: 500; letter-spacing: -.02em; margin: 0 0 12px; }
.report-article p { font-size: var(--report-copy); line-height: 1.72; max-width: 65ch; margin: 0 0 22px; color: var(--ink); text-wrap: pretty; }
.report-article p:last-child { margin-bottom: 0; }
.report-article a { color: var(--accent); text-decoration-thickness: 1px; }
.report-article strong { font-weight: 500; }
.report-article .report-intro { margin-bottom: 52px; }
.report-article .report-date { font-size: var(--report-caption); line-height: 1.5; color: var(--muted); margin: 0 0 28px; }
.report-article .report-standfirst { font-size: var(--report-lead); line-height: 1.6; margin-bottom: 22px; }
.footnote-term { position: relative; display: inline-block; color: var(--ink); text-decoration: underline dotted var(--accent); text-decoration-thickness: 1px; text-underline-offset: 4px; cursor: help; }
.footnote-mark { color: var(--accent); font-size: .72em; vertical-align: super; line-height: 0; }
.footnote-note { position: absolute; z-index: 4; left: 50%; bottom: calc(100% + 12px); width: min(290px, 70vw); padding: 12px 14px; color: var(--ink); background: var(--surface); font-size: 13px; line-height: 1.45; font-family: inherit; font-weight: 400; letter-spacing: 0; text-align: left; opacity: 0; visibility: hidden; transform: translate(-50%, 5px); transition: opacity 160ms ease, transform 160ms ease, visibility 160ms ease; pointer-events: none; }
.footnote-note::after { content: ''; position: absolute; left: 50%; bottom: -5px; width: 8px; height: 8px; background: var(--surface); transform: translateX(-50%) rotate(45deg); }
.footnote-term:hover .footnote-note, .footnote-term:focus-visible .footnote-note { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.footnote-term:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.report-status { color: var(--muted); }
.report-capture { margin: 30px 0 0; }
.report-capture img { display: block; width: 100%; height: auto; max-height: 440px; object-fit: cover; object-position: center 54%; }
.report-capture figcaption { font-size: var(--report-caption); line-height: 1.55; color: var(--muted); margin-top: 12px; }
.report-section-heading { display: block; margin-bottom: 28px; }
.challenge-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: var(--rule); }
.challenge-card { padding: 22px 20px 24px; background: var(--surface); }
.challenge-kind { font-size: 13px !important; line-height: 1.4 !important; color: var(--muted) !important; margin: 0 0 10px !important; text-transform: uppercase; letter-spacing: .08em; }
.challenge-card h3 { margin-bottom: 8px; }
.challenge-card>p:last-child { font-size: 16px; line-height: 1.55; margin: 0; }
.challenge-notes { margin-top: 22px; }
.challenge-notes p { font-size: 15px; line-height: 1.6; margin-bottom: 10px; }
.challenge-notes p:last-child { margin-bottom: 0; }
.trace-explorer { background: var(--bg); color: var(--ink); }
.trace-topline { display: flex; gap: 20px; align-items: center; padding: 20px; background: var(--surface); }
.trace-turn { display: flex; align-items: baseline; gap: 8px; }
.trace-turn span { font-size: 14px; }
.trace-turn strong { font-size: 28px; line-height: 1; letter-spacing: -.035em; font-variant-numeric: tabular-nums; }
.report-article .trace-state { display: grid; gap: 3px; margin: 0; font-size: 14px; line-height: 1.4; }
.trace-state span:last-child { font-size: 13px; color: var(--muted); }
.report-article .trace-position { margin: 0 0 0 auto; font-size: 13px; color: var(--muted); }
.trace-stage { display: grid; grid-template-columns: 1fr 1fr; }
.trace-photo { margin: 0; background: var(--surface); }
.trace-photo img { display: block; width: 100%; height: 350px; object-fit: contain; }
.trace-photo figcaption { padding: 12px 16px; font-size: 13px; line-height: 1.5; color: var(--muted); }
.trace-transcript { padding: 22px; display: flex; flex-direction: column; gap: 24px; }
.report-article .trace-frame-title { font-size: 19px; line-height: 1.35; font-weight: 500; margin: 0; }
.report-article .trace-message h3 { font-size: 14px; font-weight: 500; margin: 0 0 8px; }
.report-article .trace-message p { font-size: 16px; line-height: 1.6; margin: 0; white-space: pre-line; overflow-wrap: anywhere; }
.trace-feedback { padding: 16px; background: var(--surface); }
.report-article .trace-note { margin: auto 0 0; font-size: 13px; line-height: 1.55; color: var(--muted); }
.trace-note[data-intervention="true"] { padding-left: 12px; border-left: 2px solid var(--accent); }
.trace-controls { display: flex; gap: 12px; align-items: center; padding: 18px 16px; background: var(--surface); }
.trace-controls[hidden] { display: none; }
.trace-transport { display: flex; gap: 3px; }
.trace-control, .trace-chapters button { font: inherit; font-size: 14px; color: var(--ink); background: transparent; border: 0; cursor: pointer; min-height: 40px; padding: 8px; border-radius: 3px; transition: background 160ms ease, transform 160ms ease; }
.trace-control:hover, .trace-chapters button:hover { background: var(--surface); }
.trace-control:active, .trace-chapters button:active { transform: translateY(1px); }
.trace-control:disabled { opacity: .3; cursor: default; }
.trace-control:focus-visible, .trace-chapters button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.trace-play { display: flex; align-items: center; justify-content: space-between; min-width: 76px; gap: 12px; background: var(--surface); padding: 8px 12px; }
.trace-scrubber { flex: 1; display: flex; min-width: 70px; position: relative; }
.trace-scrubber input { width: 100%; min-height: 40px; accent-color: var(--accent); cursor: pointer; }
.trace-chapters { display: flex; gap: 3px; }
.trace-chapters button { font-size: 13px; padding-inline: 8px; }
.trace-chapters button[aria-pressed="true"] { background: var(--surface); color: var(--accent); font-weight: 500; }
.report-article .trace-load-status { margin: 0; padding: 0 20px 20px; font-size: 14px; line-height: 1.5; }
.trace-load-status:empty { display: none; }
.trace-filmstrip { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; margin-top: 18px; }
.trace-thumb { display: block; border: 0; padding: 0; text-align: left; cursor: pointer; font: inherit; background: transparent; color: var(--muted); min-width: 0; }
.trace-thumb img { display: block; width: 100%; aspect-ratio: 1.45; object-fit: cover; background: var(--surface); transition: opacity 160ms ease; }
.trace-thumb:hover img { opacity: .8; }
.trace-thumb:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.trace-thumb[aria-current="true"] img { outline: 2px solid var(--accent); outline-offset: -2px; }
.trace-thumb span { display: block; font-size: 13px; line-height: 1.4; padding-top: 6px; }
.report-article .episode-disclosure { font-size: var(--report-caption); line-height: 1.6; color: var(--muted); margin-top: 22px; }
.method-heading { margin-bottom: 28px; }
.method-step { margin-top: 28px; }
.method-step h3 { margin-bottom: 10px; }
.report-article .environment-study-heading { display: block; margin-bottom: 28px; }
.report-article .environment-stage { height: 410px; }
.report-article .environment-toolbar { padding: 12px 16px; flex-wrap: wrap; }
.report-article .environment-toolbar>p { font-size: 14px; margin: 0; }
.report-article .view-tabs button { font-size: 13px; padding: 8px 10px; border-radius: 3px; }
.report-article .view-tabs button[aria-selected=true] { background: var(--bg); color: var(--accent); font-weight: 500; }
.report-article .capture-inset { width: 160px; left: 18px; bottom: 18px; }
.report-article .capture-inset figcaption, .report-article .environment-caption { font-size: 13px; line-height: 1.5; }
.report-article .orbit-hint { font-size: 13px; top: 18px; right: 18px; }
.report-article .stage-photo-caption { font-size: 13px; margin: 0; }
.report-article .environment-loading { font-size: 14px; }
.findings-heading { margin-bottom: 28px; }
.finding-result { margin: 28px 0; }
.report-article .finding-number { padding: 18px 22px; margin-bottom: 26px; background: var(--surface); font-size: 18px; }
.finding-number strong { display: block; }
.finding-number span { display: block; }
.findings-qualification .text-link { font-size: 16px; }
.report-article .observation-title p { color: var(--muted); margin-bottom: 24px; }
.report-article .report-next p { margin-bottom: 24px; }
.report-article .text-link { font-size: 17px; }
.report-sources .sources-body>p { font-size: 16px; color: var(--muted); }
.sources-body summary { font-size: 16px; cursor: pointer; padding: 5px 0; }
.source-details { padding-top: 20px; }
.report-article .source-details p { font-size: 16px; line-height: 1.7; overflow-wrap: anywhere; }
.report-page .report-footer { display: block; background: transparent; color: var(--muted); max-width: 1210px; margin: 0 auto; padding: 32px 40px; }
.report-footer-top { display: flex; justify-content: space-between; gap: 24px; align-items: start; }
.report-footer-top p, .report-footer-top a { font-size: 14px; line-height: 1.6; margin: 0; }
.report-footer-wordmark { display: inline-block; font-size: 22px; font-weight: 500; letter-spacing: -.035em; color: var(--ink); text-decoration: none; margin-top: 28px; }
.report-footer-note { font-size: 13px; margin-top: 10px; }
@media (max-width: 1100px) {
  .report-layout { grid-template-columns: 180px minmax(0, 1fr); column-gap: 40px; padding-inline: 32px; }
  .trace-stage { grid-template-columns: 1fr; }
  .trace-photo img { height: 370px; }
  .trace-transcript { padding: 24px; }
  .trace-controls { flex-wrap: wrap; gap: 14px; }
  .trace-chapters { margin-left: auto; }
  .report-article .environment-toolbar { gap: 12px; }
  .report-article .environment-stage { height: 360px; }
  .report-article .capture-inset { width: 140px; }
}
@media (max-width: 860px) {
  .report-layout { display: block; max-width: 800px; padding: 28px 32px 64px; }
  .article-contents { position: static; padding-top: 0; margin-bottom: 38px; }
  .contents-disclosure { padding: 14px 0; }
  .contents-disclosure summary { cursor: pointer; padding: 0; color: var(--muted); font-size: 15px; }
  .contents-disclosure summary>span { display: inline; float: right; }
  .contents-disclosure[open] nav { margin-top: 16px; }
  .contents-disclosure nav { grid-template-columns: 1fr 1fr; gap: 4px 12px; }
  .contents-disclosure nav a { padding: 7px 10px; }
  .report-article h1 { max-width: 20ch; }
  .trace-stage { grid-template-columns: 1fr 1fr; }
  .trace-photo img { height: 350px; }
  .trace-transcript { padding: 20px; }
}
@media (max-width: 600px) {
  .report-page { --report-heading: 29px; --report-space: 52px; --report-lead: 20px; }
  .report-layout { padding: 24px 22px 48px; }
  .article-contents { margin-bottom: 34px; }
  .contents-disclosure nav { grid-template-columns: 1fr; }
  .report-article h1 { font-size: 40px; line-height: 1.16; letter-spacing: -.04em; max-width: 18ch; }
  .report-article p { line-height: 1.7; }
  .report-article .report-date { margin-bottom: 24px; }
  .report-capture img { max-height: none; aspect-ratio: 1.35; }
  .report-opening-illustration { margin-bottom: 36px; }
  .challenge-grid { grid-template-columns: 1fr; }
  .trace-stage { grid-template-columns: 1fr; }
  .trace-topline { padding: 18px 16px; gap: 14px; flex-wrap: wrap; }
  .trace-state { max-width: 23ch; }
  .report-article .trace-position { flex-basis: 100%; margin-left: 0; }
  .trace-photo img { height: 340px; max-height: 100vw; }
  .trace-transcript { padding: 22px 16px; }
  .trace-controls { padding: 16px 12px; gap: 10px; }
  .trace-transport { gap: 0; }
  .trace-scrubber { min-width: 70px; }
  .trace-chapters { width: 100%; margin-left: 0; display: grid; grid-template-columns: repeat(3, 1fr); }
  .trace-filmstrip { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px 8px; }
  .trace-thumb img { aspect-ratio: 1; }
  .report-article .environment-stage { height: 330px; }
  .report-article .capture-inset { width: 125px; left: 12px; bottom: 12px; }
  .report-article .orbit-hint { top: 12px; right: 12px; font-size: 12px; }
  .report-article .environment-caption>span:nth-child(2) { display: none; }
  .report-page .report-footer { padding: 28px 22px; }
  .report-footer-top { display: block; }
  .report-footer-top .text-link { margin-top: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  .sketch-drawing, .sketch-route, .sketch-node, .sketch-pulse, .sketch-traveler, .section-signal path, .section-signal circle { animation: none; }
  .trace-control, .trace-chapters button, .trace-thumb img { transition: none; }
  .trace-control:active, .trace-chapters button:active { transform: none; }
}