:root {
  color-scheme: light;
  --ink: #16201d;
  --ink-soft: #46534f;
  --night: #111715;
  --night-raised: #1b2421;
  --paper: #f3f5f2;
  --surface: #ffffff;
  --line: #cfd6d2;
  --line-dark: #35423e;
  --green: #0b806a;
  --green-bright: #2cc39f;
  --yellow: #e6b635;
  --red: #c94c43;
  --blue: #4268d5;
  --muted: #74817d;
  --max-width: 1240px;
  --font-sans: "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  --font-mono: Consolas, "SFMono-Regular", "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-sans);
  line-height: 1.6;
  letter-spacing: 0;
}

button, input { font: inherit; }

a { color: inherit; }

code {
  font-family: var(--font-mono);
  font-size: .91em;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  color: #fff;
  background: var(--green);
  transform: translateY(-150%);
}

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

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .96);
}

.header-inner {
  width: min(var(--max-width), calc(100% - 40px));
  min-height: 70px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 30px;
}

.brand {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--ink);
  background: var(--yellow);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
}

.brand > span:last-child { display: grid; line-height: 1.12; }
.brand strong { font-size: 15px; }
.brand small { margin-top: 3px; color: var(--muted); font-family: var(--font-mono); font-size: 9px; text-transform: uppercase; }

nav {
  min-width: 0;
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 22px;
}

nav a {
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 650;
  text-decoration: none;
  white-space: nowrap;
}

nav a:hover { color: var(--green); }

.header-action {
  flex: 0 0 auto;
  min-height: 36px;
  padding: 7px 13px;
  border: 1px solid var(--ink);
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
}

.header-action:hover { color: #fff; background: var(--ink); }

.section-inner {
  width: min(var(--max-width), calc(100% - 40px));
  margin: 0 auto;
}

.intro {
  padding: 76px 0 64px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background-color: #f9faf8;
  background-image:
    linear-gradient(#dfe4e1 1px, transparent 1px),
    linear-gradient(90deg, #dfe4e1 1px, transparent 1px);
  background-size: 40px 40px;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(340px, .8fr);
  gap: 70px;
  align-items: end;
}

.eyebrow {
  margin: 0 0 13px;
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
}

h1, h2, h3, p { overflow-wrap: anywhere; }

h1 {
  max-width: 840px;
  margin: 0;
  font-size: 48px;
  line-height: 1.16;
  font-weight: 760;
  letter-spacing: 0;
}

.lede {
  max-width: 780px;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.82;
}

.intro-actions {
  margin-top: 30px;
  display: flex;
  align-items: center;
  gap: 22px;
}

.primary-action {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 9px 17px;
  color: #fff;
  background: var(--ink);
  border: 1px solid var(--ink);
  font-size: 13px;
  font-weight: 750;
  text-decoration: none;
}

.primary-action:hover { color: var(--ink); background: var(--yellow); }

.text-action {
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 700;
  text-underline-offset: 4px;
}

.status-board {
  border: 1px solid var(--ink);
  background: rgba(255, 255, 255, .92);
  box-shadow: 9px 9px 0 var(--yellow);
}

.status-head {
  min-height: 42px;
  padding: 10px 15px;
  display: flex;
  align-items: center;
  gap: 9px;
  color: #fff;
  background: var(--ink);
  font-family: var(--font-mono);
  font-size: 10px;
}

.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green-bright);
  box-shadow: 0 0 0 4px rgba(44, 195, 159, .15);
}

.status-list { margin: 0; }

.status-list > div {
  padding: 13px 15px;
  display: grid;
  grid-template-columns: 105px minmax(0, 1fr);
  gap: 14px;
  border-top: 1px solid var(--line);
}

.status-list > div:first-child { border-top: 0; }
.status-list dt { color: var(--muted); font-size: 11px; }
.status-list dd { margin: 0; font-size: 12px; font-weight: 700; }
.status-list dd code { color: var(--green); }
.state-warn { margin-right: 5px; color: var(--red); font-family: var(--font-mono); font-size: 10px; }

.snapshot { color: #fff; background: var(--night); }

.metric-strip {
  min-height: 132px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.metric-cell {
  padding: 23px 28px;
  display: grid;
  align-content: center;
  border-left: 1px solid var(--line-dark);
}

.metric-cell:last-child { border-right: 1px solid var(--line-dark); }
.metric-cell strong { color: var(--yellow); font-family: var(--font-mono); font-size: 28px; line-height: 1; }
.metric-cell span { margin-top: 8px; font-size: 13px; font-weight: 700; }
.metric-cell small { margin-top: 2px; color: #9daba6; font-family: var(--font-mono); font-size: 10px; }

.section { padding: 92px 0; }

.section-heading { margin-bottom: 40px; }
.section-heading h2 { margin: 0; font-size: 35px; line-height: 1.24; }

.heading-row {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(360px, 1.15fr);
  gap: 70px;
  align-items: end;
}

.heading-row > p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.85;
}

.synthetic-notice {
  margin-bottom: 16px;
  padding: 11px 14px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  border: 1px solid #c79c29;
  background: #fff7d8;
  font-size: 12px;
}

.synthetic-notice strong {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 10px;
}

.workbench {
  display: grid;
  grid-template-columns: minmax(300px, .82fr) minmax(440px, 1.18fr);
  border: 1px solid var(--ink);
  background: var(--surface);
}

.query-panel { padding: 28px; border-right: 1px solid var(--line); }
.query-panel label, .method-picker legend, #preset-label { display: block; margin-bottom: 8px; font-size: 12px; font-weight: 750; }

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

.query-control input {
  min-width: 0;
  height: 44px;
  padding: 9px 12px;
  border: 1px solid var(--ink);
  border-right: 0;
  border-radius: 0;
  color: var(--ink);
  background: #fff;
  font-size: 13px;
}

.query-control button {
  min-width: 98px;
  min-height: 44px;
  padding: 8px 13px;
  border: 1px solid var(--ink);
  color: #fff;
  background: var(--ink);
  font-size: 12px;
  font-weight: 750;
  cursor: pointer;
}

.query-control button:hover { color: var(--ink); background: var(--yellow); }
.field-help { margin: 8px 0 0; color: var(--muted); font-size: 11px; }

.method-picker { min-width: 0; margin: 24px 0 0; padding: 0; border: 0; }

.segmented {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--ink);
}

.segmented label { margin: 0; cursor: pointer; }
.segmented label + label { border-left: 1px solid var(--ink); }
.segmented input { position: absolute; opacity: 0; pointer-events: none; }

.segmented span {
  min-height: 38px;
  padding: 7px 6px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 10px;
  text-align: center;
}

.segmented input:checked + span { color: #fff; background: var(--green); }
.segmented input:focus-visible + span { outline: 3px solid var(--yellow); outline-offset: -3px; }

.preset-group { margin-top: 23px; }

.preset-list { display: flex; flex-wrap: wrap; gap: 7px; }

.preset {
  min-height: 34px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--ink-soft);
  background: var(--paper);
  font-size: 11px;
  cursor: pointer;
}

.preset:hover { border-color: var(--green); color: var(--green); background: #fff; }

.trace { margin-top: 30px; border-top: 1px solid var(--line); padding-top: 22px; }
.trace-head { display: flex; align-items: center; justify-content: space-between; gap: 15px; }
.trace h3 { margin: 0; font-size: 14px; }
.trace-head > span { color: var(--muted); font-family: var(--font-mono); font-size: 9px; }
.trace ol { margin: 17px 0 0; padding: 0; list-style: none; }

.trace li {
  position: relative;
  min-height: 51px;
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 10px;
}

.trace li:not(:last-child)::after { content: ""; position: absolute; top: 24px; bottom: -2px; left: 11px; width: 1px; background: var(--line); }
.trace li > span { position: relative; z-index: 1; width: 24px; height: 24px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; color: var(--muted); background: #fff; font-family: var(--font-mono); font-size: 8px; }
.trace li.is-complete > span, .trace li.is-active > span { border-color: var(--green); color: #fff; background: var(--green); }
.trace li div { display: grid; align-content: start; }
.trace li b { font-size: 11px; }
.trace li small { color: var(--muted); font-size: 10px; }

.results-panel { min-width: 0; padding: 28px; background: #f8faf8; }

.results-head {
  min-height: 53px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.result-kicker { color: var(--green); font-family: var(--font-mono); font-size: 9px; }
.results-head h3 { margin: 1px 0 0; font-size: 18px; }
.coverage-stat { text-align: right; }
.coverage-stat span { display: block; color: var(--muted); font-size: 10px; }
.coverage-stat strong { font-family: var(--font-mono); font-size: 15px; }

.result-list { margin: 13px 0 0; padding: 0; display: grid; gap: 8px; list-style: none; }

.result-item {
  min-width: 0;
  padding: 13px;
  display: grid;
  grid-template-columns: 31px minmax(0, 1fr) auto;
  gap: 12px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--green);
  background: #fff;
}

.result-rank {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--ink);
  font-family: var(--font-mono);
  font-size: 10px;
}

.result-body { min-width: 0; }
.result-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 7px; color: var(--muted); font-family: var(--font-mono); font-size: 8px; }
.synthetic-tag { padding: 1px 5px; border: 1px solid #c79c29; color: #6b5213; background: #fff7d8; }
.result-body h4 { margin: 4px 0 3px; font-size: 12px; }
.result-body p { margin: 0; color: var(--ink-soft); font-size: 10px; line-height: 1.5; }
.result-score { min-width: 52px; align-self: center; text-align: right; }
.result-score strong { display: block; font-family: var(--font-mono); font-size: 12px; }
.result-score small { color: var(--muted); font-family: var(--font-mono); font-size: 8px; }

.dark-band { color: #edf3f0; background: var(--night); }
.dark-band .eyebrow { color: var(--green-bright); }
.dark-band .heading-row > p { color: #aebbb6; }

.audit-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 58px; align-items: center; }

.leakage-visual { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 34px; align-items: center; }

.donut {
  width: 220px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: conic-gradient(var(--red) 0 75%, #34413d 75% 100%);
}

.donut::before { content: ""; grid-area: 1 / 1; width: 150px; aspect-ratio: 1; border-radius: 50%; background: var(--night); }
.donut span { z-index: 1; grid-area: 1 / 1; display: grid; text-align: center; }
.donut strong { color: #fff; font-family: var(--font-mono); font-size: 40px; line-height: 1; }
.donut small { margin-top: 8px; color: #aebbb6; font-size: 10px; }
.leakage-visual dl { margin: 0; }
.leakage-visual dl > div { padding: 10px 0; display: flex; justify-content: space-between; gap: 20px; border-bottom: 1px solid var(--line-dark); }
.leakage-visual dt { color: #aebbb6; font-size: 11px; }
.leakage-visual dd { margin: 0; font-family: var(--font-mono); font-weight: 750; }

.audit-findings { border-top: 1px solid var(--line-dark); }
.audit-findings article { padding: 20px 0; display: grid; grid-template-columns: 36px minmax(0, 1fr); gap: 16px; border-bottom: 1px solid var(--line-dark); }
.finding-index { color: var(--yellow); font-family: var(--font-mono); font-size: 11px; }
.audit-findings h3 { margin: 0; font-size: 16px; }
.audit-findings p { margin: 5px 0 0; color: #aebbb6; font-size: 12px; }

.score-drop {
  margin-top: 58px;
  padding-top: 32px;
  display: grid;
  grid-template-columns: .7fr 1.3fr;
  gap: 50px;
  align-items: center;
  border-top: 1px solid var(--line-dark);
}

.score-drop h3 { margin: 0; font-size: 20px; }
.score-pair { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 19px; }
.score-block { min-height: 120px; padding: 19px; display: grid; align-content: center; border: 1px solid var(--line-dark); }
.score-block span { color: #aebbb6; font-size: 11px; }
.score-block strong { font-family: var(--font-mono); font-size: 29px; line-height: 1.3; }
.score-block small { color: #87958f; font-family: var(--font-mono); font-size: 9px; }
.score-block.legacy strong { color: #ef887f; }
.score-block.strict { border-color: var(--green); }
.score-block.strict strong { color: var(--green-bright); }
.score-arrow { color: var(--yellow); font-size: 24px; }

.evaluation { background: var(--surface); }

.evidence-tabs { border-top: 1px solid var(--ink); }
.tab-list { display: flex; border-bottom: 1px solid var(--line); }
.tab-list button { min-height: 46px; padding: 10px 20px; border: 0; border-right: 1px solid var(--line); color: var(--ink-soft); background: var(--paper); font-size: 12px; font-weight: 750; cursor: pointer; }
.tab-list button[aria-selected="true"] { color: #fff; background: var(--ink); }

.tab-panel { min-height: 390px; padding: 42px 0 0; }
.tab-panel[hidden] { display: none; }

#panel-full { grid-template-columns: .75fr 1.25fr; gap: 65px; align-items: center; }
#panel-full:not([hidden]) { display: grid; }
.chart-label { color: var(--green); font-family: var(--font-mono); font-size: 10px; }
.chart-copy h3, .split-method h3 { margin: 7px 0 10px; font-size: 23px; }
.chart-copy > p { margin: 0; color: var(--ink-soft); font-size: 13px; }
.chart-callout { margin-top: 28px; padding-left: 16px; display: grid; border-left: 4px solid var(--yellow); }
.chart-callout strong { font-family: var(--font-mono); font-size: 27px; line-height: 1.2; }
.chart-callout span { font-size: 12px; font-weight: 750; }
.chart-callout small { color: var(--muted); font-size: 10px; }

.bar-chart { display: grid; gap: 15px; }
.bar-row { display: grid; grid-template-columns: 130px minmax(0, 1fr) 60px; gap: 13px; align-items: center; }
.bar-row > span { font-family: var(--font-mono); font-size: 10px; }
.bar-row > div { height: 18px; overflow: hidden; background: #e7ebe8; }
.bar-row i { width: var(--value); height: 100%; display: block; background: #8f9b97; }
.bar-row b { font-family: var(--font-mono); font-size: 11px; text-align: right; }
.bar-row.baseline i { background: var(--blue); }
.bar-row.selected i { background: var(--green); }
.bar-row.negative i { background: var(--red); }

#panel-split:not([hidden]) { display: grid; grid-template-columns: .92fr 1.08fr; gap: 60px; }
.split-flow { margin-top: 26px; display: grid; grid-template-columns: 1fr auto 1fr; gap: 14px; align-items: center; }
.split-flow > div { min-height: 123px; padding: 17px; display: grid; align-content: center; border: 1px solid var(--line); background: var(--paper); }
.split-flow > div strong { color: var(--green); font-family: var(--font-mono); font-size: 10px; }
.split-flow > div span { margin-top: 6px; font-size: 12px; font-weight: 750; }
.split-flow > div small { color: var(--muted); font-size: 9px; }
.split-flow > span { color: var(--muted); font-size: 10px; }

.test-result { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line); }
.test-score { min-height: 130px; padding: 20px; display: grid; align-content: center; }
.test-score + .test-score { border-left: 1px solid var(--line); }
.test-score span { font-family: var(--font-mono); font-size: 10px; }
.test-score strong { font-family: var(--font-mono); font-size: 27px; }
.test-score small { color: var(--muted); font-size: 10px; }
.test-score.accent { color: #fff; background: var(--green); }
.test-score.accent small { color: #d3eee7; }
.ci-block { grid-column: 1 / -1; padding: 19px 20px; border-top: 1px solid var(--line); }
.ci-block > span { color: var(--muted); font-size: 10px; }
.ci-block > strong { display: block; font-family: var(--font-mono); font-size: 20px; }
.ci-block > small { color: var(--muted); font-family: var(--font-mono); font-size: 8px; }
.ci-axis { position: relative; height: 24px; margin: 13px 0 4px; }
.ci-axis::before { content: ""; position: absolute; top: 10px; left: 0; right: 0; height: 1px; background: var(--line); }
.ci-axis i { position: absolute; top: 8px; left: 0; right: 12%; height: 5px; background: var(--yellow); }
.ci-axis b { position: absolute; top: 4px; left: 0; width: 2px; height: 13px; background: var(--red); }
.ci-axis span { position: absolute; top: 14px; color: var(--muted); font-family: var(--font-mono); font-size: 8px; }
.zero-mark { left: 0; }
.high-mark { right: 12%; }
.panel-caveat { grid-column: 1 / -1; margin: 0; padding: 11px 14px; border-left: 3px solid var(--yellow); color: var(--ink-soft); background: #fff8df; font-size: 11px; }

#panel-negative:not([hidden]) { display: grid; grid-template-columns: .8fr 1.2fr; gap: 68px; align-items: center; }
.negative-result { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line); }
.negative-number, .negative-versus { min-height: 180px; padding: 22px; display: grid; align-content: center; }
.negative-number { color: #fff; background: var(--red); }
.negative-result span { font-family: var(--font-mono); font-size: 9px; }
.negative-result strong { font-family: var(--font-mono); font-size: 27px; }
.negative-result small { font-size: 9px; }
.negative-versus { border-left: 1px solid var(--line); }
.negative-versus strong { color: var(--red); }
.negative-copy h3 { margin: 0 0 10px; font-size: 23px; }
.negative-copy p, .negative-copy li { color: var(--ink-soft); font-size: 12px; }
.negative-copy ul { margin: 17px 0 0; padding-left: 19px; }
.negative-copy li + li { margin-top: 7px; }

.pipeline-band { color: #fff; background: var(--green); }
.pipeline { min-height: 178px; display: grid; grid-template-columns: 210px minmax(0, 1fr); align-items: stretch; }
.pipeline-title { padding: 31px 28px 31px 0; display: grid; align-content: center; border-right: 1px solid rgba(255, 255, 255, .3); }
.pipeline-title span { color: #c7efe5; font-family: var(--font-mono); font-size: 9px; }
.pipeline-title strong { margin-top: 4px; font-size: 16px; }
.pipeline ol { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(6, 1fr); list-style: none; }
.pipeline li { min-width: 0; padding: 26px 14px; display: grid; align-content: center; border-right: 1px solid rgba(255, 255, 255, .22); }
.pipeline li span { color: var(--yellow); font-family: var(--font-mono); font-size: 9px; }
.pipeline li b { margin-top: 12px; font-size: 12px; }
.pipeline li small { margin-top: 3px; color: #cfebe4; font-size: 9px; overflow-wrap: anywhere; }

.ann-layout { display: grid; grid-template-columns: .82fr 1.18fr; gap: 42px; align-items: stretch; }
.ann-visual { min-height: 300px; display: grid; grid-template-columns: 1.2fr .8fr; color: #fff; background: var(--night); }
.ann-focus { padding: 28px; display: grid; align-content: center; border-right: 1px solid var(--line-dark); }
.ann-focus span { color: var(--green-bright); font-family: var(--font-mono); font-size: 9px; }
.ann-focus strong { margin-top: 7px; color: var(--yellow); font-family: var(--font-mono); font-size: 45px; line-height: 1.15; }
.ann-focus small { color: #9daba6; font-size: 9px; }
.ann-secondary { display: grid; }
.ann-secondary > div { padding: 17px; display: grid; align-content: center; border-bottom: 1px solid var(--line-dark); }
.ann-secondary > div:last-child { border-bottom: 0; }
.ann-secondary span { color: #9daba6; font-size: 9px; }
.ann-secondary strong { font-family: var(--font-mono); font-size: 14px; overflow-wrap: anywhere; }

.table-scroll { min-width: 0; overflow-x: auto; }
table { width: 100%; min-width: 570px; border-collapse: collapse; background: #fff; }
th, td { padding: 17px 14px; border-bottom: 1px solid var(--line); font-family: var(--font-mono); font-size: 10px; text-align: right; white-space: nowrap; }
thead th { color: var(--muted); background: var(--paper); font-size: 9px; }
th:first-child, td:first-child { text-align: left; }
tbody th { font-weight: 800; }
.selected-row { color: #fff; background: var(--green); }
.selected-row th, .selected-row td { border-color: #0a6c5a; }

.benchmark-boundary { margin-top: 30px; padding: 17px 20px; display: grid; grid-template-columns: 190px 1fr; gap: 26px; border-left: 4px solid var(--red); background: #fff; }
.benchmark-boundary strong { font-size: 12px; }
.benchmark-boundary p { margin: 0; color: var(--ink-soft); font-size: 11px; }

.claims { border-top: 1px solid var(--line); background: #fff; }
.claim-grid { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--ink); }
.claim-grid article { min-width: 0; }
.claim-grid article + article { border-left: 1px solid var(--ink); }
.claim-head { min-height: 55px; padding: 13px 18px; display: flex; align-items: center; gap: 13px; border-bottom: 1px solid var(--line); }
.claim-head span { min-width: 33px; padding: 3px 5px; color: #fff; font-family: var(--font-mono); font-size: 9px; text-align: center; }
.claim-yes .claim-head span { background: var(--green); }
.claim-no .claim-head span { background: var(--red); }
.claim-head h3 { margin: 0; font-size: 16px; }
.claim-grid ul { margin: 0; padding: 21px 28px 25px 39px; }
.claim-grid li { padding-left: 4px; color: var(--ink-soft); font-size: 12px; }
.claim-grid li + li { margin-top: 11px; }
.claim-yes li::marker { color: var(--green); }
.claim-no li::marker { color: var(--red); }

.next-evidence { margin-top: 24px; padding: 27px; display: grid; grid-template-columns: 1.2fr .8fr; gap: 60px; align-items: center; color: #fff; background: var(--night); }
.next-evidence > div:first-child > span { color: var(--green-bright); font-family: var(--font-mono); font-size: 9px; }
.next-evidence h3 { margin: 4px 0 7px; font-size: 20px; }
.next-evidence p { margin: 0; color: #aebbb6; font-size: 11px; }
.progress-label { display: flex; justify-content: space-between; gap: 20px; font-size: 10px; }
.progress-label strong { font-family: var(--font-mono); }
.progress-track { height: 8px; margin-top: 10px; border: 1px solid #56635f; background: #252e2b; }
.progress-track i { width: 0; height: 100%; display: block; background: var(--yellow); }
.progress-block > small { color: #ef887f; font-family: var(--font-mono); font-size: 8px; }

.evidence-index { padding: 75px 0; color: #fff; background: var(--blue); }
.evidence-index .section-inner { display: grid; grid-template-columns: .75fr 1.25fr; gap: 70px; }
.evidence-index .eyebrow { color: #e2e8ff; }
.index-copy h2 { margin: 0; font-size: 31px; }
.index-copy p:last-child { color: #d9e0f8; font-size: 12px; }
.index-list { border-top: 1px solid rgba(255, 255, 255, .42); }
.index-list a { min-height: 61px; padding: 12px 7px; display: grid; grid-template-columns: 35px minmax(0, 1fr) auto; align-items: center; gap: 11px; border-bottom: 1px solid rgba(255, 255, 255, .42); text-decoration: none; }
.index-list a:hover { color: var(--yellow); }
.index-list span { font-family: var(--font-mono); font-size: 9px; }
.index-list b { font-size: 12px; }
.index-list small { font-family: var(--font-mono); font-size: 8px; text-align: right; }

footer { padding: 30px 0; color: #afbbb7; background: var(--night); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.footer-inner > div { display: grid; }
.footer-inner strong { color: #fff; font-size: 13px; }
.footer-inner span { font-size: 10px; }
.footer-inner p { margin: 0; font-family: var(--font-mono); font-size: 8px; }

button:focus-visible,
a:focus-visible,
input:focus-visible,
[tabindex="0"]:focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 3px;
}

@media (max-width: 1040px) {
  nav { gap: 14px; }
  nav a:nth-child(4) { display: none; }
  .intro-grid { gap: 40px; }
  h1 { font-size: 42px; }
  .heading-row { gap: 40px; }
  .workbench { grid-template-columns: minmax(280px, .75fr) minmax(400px, 1.25fr); }
  .query-panel, .results-panel { padding: 23px; }
  .pipeline { grid-template-columns: 170px 1fr; }
  .pipeline li { padding-inline: 9px; }
}

@media (max-width: 820px) {
  .header-inner { min-height: 62px; }
  nav { display: none; }
  .header-action { margin-left: auto; }
  .intro { padding: 58px 0 52px; }
  .intro-grid { grid-template-columns: 1fr; gap: 37px; }
  .status-board { max-width: 520px; }
  .metric-strip { grid-template-columns: repeat(2, 1fr); }
  .metric-cell:nth-child(2) { border-right: 1px solid var(--line-dark); }
  .metric-cell:nth-child(n+3) { border-top: 1px solid var(--line-dark); }
  .section { padding: 72px 0; }
  .heading-row { grid-template-columns: 1fr; gap: 17px; }
  .workbench { grid-template-columns: 1fr; }
  .query-panel { border-right: 0; border-bottom: 1px solid var(--line); }
  .audit-layout { grid-template-columns: 1fr; }
  .score-drop { grid-template-columns: 1fr; gap: 20px; }
  #panel-full:not([hidden]), #panel-split:not([hidden]), #panel-negative:not([hidden]) { grid-template-columns: 1fr; gap: 38px; }
  .tab-panel { min-height: 0; padding-bottom: 20px; }
  .pipeline { grid-template-columns: 1fr; }
  .pipeline-title { padding: 24px 0; border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, .3); }
  .pipeline ol { grid-template-columns: repeat(3, 1fr); }
  .pipeline li:nth-child(-n+3) { border-bottom: 1px solid rgba(255, 255, 255, .22); }
  .ann-layout { grid-template-columns: 1fr; }
  .claim-grid { grid-template-columns: 1fr; }
  .claim-grid article + article { border-left: 0; border-top: 1px solid var(--ink); }
  .next-evidence { grid-template-columns: 1fr; gap: 27px; }
  .evidence-index .section-inner { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 540px) {
  .header-inner, .section-inner { width: min(100% - 28px, var(--max-width)); }
  .brand small { display: none; }
  .header-action { padding-inline: 10px; }
  .intro { padding: 43px 0 44px; background-size: 28px 28px; }
  h1 { font-size: 33px; line-height: 1.2; }
  .lede { font-size: 15px; line-height: 1.72; }
  .intro-actions { align-items: flex-start; flex-direction: column; gap: 13px; }
  .status-board { box-shadow: 6px 6px 0 var(--yellow); }
  .status-list > div { grid-template-columns: 92px minmax(0, 1fr); }
  .metric-cell { padding: 20px 16px; }
  .metric-cell strong { font-size: 23px; }
  .section { padding: 60px 0; }
  .section-heading h2 { font-size: 28px; }
  .synthetic-notice { align-items: stretch; flex-direction: column; gap: 4px; }
  .query-panel, .results-panel { padding: 18px; }
  .query-control { grid-template-columns: 1fr; gap: 8px; }
  .query-control input { border-right: 1px solid var(--ink); }
  .query-control button { width: 100%; }
  .segmented { grid-template-columns: 1fr; }
  .segmented label + label { border-left: 0; border-top: 1px solid var(--ink); }
  .result-item { grid-template-columns: 28px minmax(0, 1fr); }
  .result-score { grid-column: 2; display: flex; align-items: baseline; justify-content: flex-start; gap: 5px; text-align: left; }
  .result-score strong { display: inline; }
  .audit-layout { gap: 40px; }
  .leakage-visual { grid-template-columns: 1fr; justify-items: center; }
  .leakage-visual dl { width: 100%; }
  .donut { width: 190px; }
  .donut::before { width: 128px; }
  .score-pair { grid-template-columns: 1fr; gap: 11px; }
  .score-arrow { transform: rotate(90deg); justify-self: center; }
  .score-block { min-height: 100px; }
  .tab-list { overflow-x: auto; }
  .tab-list button { flex: 1 0 auto; padding-inline: 14px; }
  .bar-row { grid-template-columns: 91px minmax(0, 1fr) 49px; gap: 8px; }
  .bar-row > span, .bar-row b { font-size: 8px; }
  .split-flow { grid-template-columns: 1fr; }
  .split-flow > span { justify-self: center; }
  .test-result { grid-template-columns: 1fr; }
  .test-score + .test-score { border-left: 0; border-top: 1px solid var(--line); }
  .negative-result { grid-template-columns: 1fr; }
  .negative-versus { border-left: 0; border-top: 1px solid var(--line); }
  .pipeline ol { grid-template-columns: repeat(2, 1fr); }
  .pipeline li:nth-child(-n+4) { border-bottom: 1px solid rgba(255, 255, 255, .22); }
  .ann-visual { grid-template-columns: 1fr; }
  .ann-focus { min-height: 190px; border-right: 0; border-bottom: 1px solid var(--line-dark); }
  .ann-secondary > div { min-height: 76px; }
  .benchmark-boundary { grid-template-columns: 1fr; gap: 7px; }
  .claim-grid ul { padding-left: 34px; }
  .next-evidence { padding: 22px; }
  .index-list a { grid-template-columns: 27px minmax(0, 1fr); }
  .index-list small { grid-column: 2; text-align: left; }
  .footer-inner { align-items: flex-start; flex-direction: column; gap: 13px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

@media print {
  .site-header, .intro-actions, .sandbox { display: none; }
  .section { padding: 30px 0; }
  .dark-band, .pipeline-band, .evidence-index, footer { color: #000; background: #fff; }
}