:root {
  color-scheme: dark;
  --bg: #070a0d;
  --surface: #0c1116;
  --surface-raised: #111820;
  --surface-strong: #17212a;
  --line: #28333d;
  --line-strong: #3b4a56;
  --text: #eef3f5;
  --muted: #a4b0b8;
  --faint: #71808a;
  --cyan: #5fd4d2;
  --cyan-bg: #102f33;
  --green: #a8d978;
  --green-bg: #1c3021;
  --red: #ff8874;
  --red-bg: #3b2324;
  --amber: #e8bf68;
  --amber-bg: #372d18;
  --blue: #82aef5;
  --blue-bg: #19283e;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  letter-spacing: 0;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  color: inherit;
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

h1,
h2,
h3,
h4,
p,
dl,
dd {
  margin: 0;
}

h1,
h2,
h3,
h4,
strong {
  font-weight: 650;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 50;
  padding: 9px 12px;
  border: 1px solid var(--cyan);
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  transform: translateY(-160%);
}

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

.site-header,
main,
.site-footer {
  width: min(1540px, calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 17px;
  font-weight: 800;
}

.brand-name {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 15px;
  font-weight: 800;
}

.header-status,
.connection-badge,
.kicker,
.scenario-control,
.result-title-row,
.attack-probe-header,
.timeline-header {
  display: flex;
  align-items: center;
}

.header-status {
  gap: 9px;
}

.system-chip,
.connection-badge,
.state-pill,
.probe-status {
  display: inline-flex;
  min-height: 29px;
  align-items: center;
  gap: 7px;
  padding: 0 10px;
  border: 1px solid var(--line-strong);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
  font-weight: 750;
  white-space: nowrap;
}

.system-chip {
  color: var(--muted);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--faint);
}

.status-pass,
.state-pass {
  border-color: #4d763e;
  background: var(--green-bg);
  color: var(--green);
}

.status-pass .status-dot {
  background: var(--green);
}

.status-block,
.state-block {
  border-color: #88483f;
  background: var(--red-bg);
  color: var(--red);
}

.status-block .status-dot {
  background: var(--red);
}

.status-neutral,
.state-neutral {
  background: var(--surface-raised);
  color: var(--muted);
}

.status-neutral .status-dot {
  background: var(--amber);
}

.micro-label,
.section-label,
.kicker,
dt,
.surface-step,
.pipeline-number,
.authority-index,
.authority-state,
.trace-note,
.comparison-label,
.section-status {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0;
  text-transform: uppercase;
}

.micro-label,
.section-label {
  color: var(--faint);
  font-size: 10px;
  font-weight: 750;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(360px, .65fr);
  gap: 64px;
  align-items: end;
  padding: 66px 0 48px;
}

.kicker {
  gap: 10px;
  margin-bottom: 20px;
  color: var(--cyan);
  font-size: 11px;
  font-weight: 750;
}

.kicker span + span {
  padding-left: 10px;
  border-left: 1px solid var(--line-strong);
  color: var(--faint);
}

.hero h1 {
  max-width: 850px;
  color: var(--text);
  font-size: 58px;
  line-height: 1.03;
}

.hero h1 em {
  color: var(--green);
  font-style: normal;
}

.hero-summary {
  max-width: 780px;
  margin-top: 24px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.65;
}

.authority-card {
  border: 1px solid var(--line);
  background: var(--surface);
}

.authority-card > .micro-label {
  display: block;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}

.authority-row {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 16px;
  border-bottom: 1px solid var(--line);
}

.authority-row:last-child {
  border-bottom: 0;
}

.authority-index {
  color: var(--faint);
  font-size: 10px;
}

.authority-row strong {
  display: block;
  color: var(--text);
  font-size: 13px;
}

.authority-row p {
  margin-top: 5px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.45;
}

.authority-state {
  padding-top: 2px;
  font-size: 9px;
  font-weight: 800;
}

.state-propose { color: var(--amber); }
.state-verify { color: var(--cyan); }
.state-decide { color: var(--green); }

.authority-final {
  background: #0d1712;
}

.pipeline {
  display: grid;
  grid-template-columns: repeat(9, auto);
  align-items: stretch;
  justify-content: space-between;
  margin-bottom: 72px;
  border-block: 1px solid var(--line);
}

.pipeline-stage {
  display: flex;
  min-width: 145px;
  align-items: center;
  gap: 12px;
  padding: 19px 10px;
}

.pipeline-number {
  display: grid;
  width: 29px;
  height: 29px;
  flex: 0 0 29px;
  place-items: center;
  border: 1px solid var(--line-strong);
  color: var(--faint);
  font-size: 9px;
}

.pipeline-stage strong,
.pipeline-stage small {
  display: block;
}

.pipeline-stage strong {
  color: var(--text);
  font-size: 13px;
}

.pipeline-stage small {
  margin-top: 4px;
  color: var(--faint);
  font-size: 10px;
}

.pipeline-hydra .pipeline-number {
  border-color: var(--cyan);
  color: var(--cyan);
}

.pipeline-gate .pipeline-number {
  border-color: var(--green);
  color: var(--green);
}

.pipeline-arrow {
  display: grid;
  place-items: center;
  color: var(--line-strong);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 17px;
}

.demo-section {
  scroll-margin-top: 24px;
}

.demo-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 36px;
  align-items: end;
  margin-bottom: 22px;
}

.section-label {
  margin-bottom: 9px;
  color: var(--cyan);
}

.demo-header h2,
.why-heading h2 {
  color: var(--text);
  font-size: 31px;
  line-height: 1.15;
}

.demo-header > div:first-child > p:last-child {
  max-width: 680px;
  margin-top: 9px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.scenario-control {
  gap: 8px;
}

.scenario-button {
  display: grid;
  min-width: 240px;
  grid-template-columns: 30px 1fr;
  gap: 10px;
  align-items: center;
  padding: 12px 14px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  text-align: left;
  transition: border-color 140ms ease, background-color 140ms ease, color 140ms ease;
}

.scenario-button:hover {
  border-color: var(--faint);
  background: var(--surface-raised);
  color: var(--text);
}

.scenario-button:disabled {
  cursor: wait;
  opacity: .62;
}

.scenario-button.is-selected.scenario-valid {
  border-color: #5f873f;
  background: var(--green-bg);
  color: var(--text);
}

.scenario-button.is-selected.scenario-tampered {
  border-color: #8d493f;
  background: var(--red-bg);
  color: var(--text);
}

.scenario-icon {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 1px solid currentColor;
  color: var(--faint);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 17px;
}

.scenario-valid.is-selected .scenario-icon { color: var(--green); }
.scenario-tampered.is-selected .scenario-icon { color: var(--red); }

.scenario-button strong,
.scenario-button small {
  display: block;
}

.scenario-button strong {
  font-size: 12px;
}

.scenario-button small {
  margin-top: 3px;
  color: var(--faint);
  font-size: 10px;
}

.result-banner {
  display: grid;
  grid-template-columns: minmax(350px, 1.4fr) minmax(470px, 1fr) minmax(220px, auto);
  gap: 0;
  min-height: 122px;
  margin-bottom: 14px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  transition: border-color 160ms ease, background-color 160ms ease;
}

.result-verdict,
.result-summary,
.result-action-meta {
  padding: 20px;
}

.result-verdict,
.result-summary {
  border-right: 1px solid var(--line);
}

.result-title-row {
  gap: 13px;
  margin-top: 9px;
}

.result-glyph {
  display: grid;
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  place-items: center;
  border: 1px solid var(--line-strong);
  color: var(--faint);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 24px;
  font-weight: 800;
}

.result-verdict h3 {
  font-size: 20px;
  line-height: 1.2;
}

.result-verdict p:last-child {
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.result-summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  align-items: center;
}

.result-summary dt,
.result-action-meta dt {
  color: var(--faint);
  font-size: 9px;
  font-weight: 750;
}

.result-summary dd,
.result-action-meta dd {
  margin-top: 7px;
  overflow-wrap: anywhere;
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11px;
  font-weight: 750;
}

.result-summary .adapter-count dd {
  font-size: 27px;
  line-height: 1;
}

.result-action-meta {
  display: grid;
  align-content: center;
  gap: 14px;
}

.result-pass {
  border-color: #577c44;
  background: #0d1712;
}

.result-pass .result-glyph {
  border-color: var(--green);
  color: var(--green);
}

.result-block {
  border-color: #8d493f;
  background: #1a1112;
}

.result-block .result-glyph {
  border-color: var(--red);
  color: var(--red);
}

.result-neutral .result-glyph {
  color: var(--amber);
}

.summary-pass { color: var(--green) !important; }
.summary-block { color: var(--red) !important; }
.summary-neutral { color: var(--muted) !important; }

.result-running .result-glyph {
  animation: verify-pulse 900ms ease-in-out infinite alternate;
}

@keyframes verify-pulse {
  from { opacity: .35; }
  to { opacity: 1; }
}

.demo-grid {
  display: grid;
  grid-template-columns: minmax(250px, .8fr) minmax(450px, 1.45fr) minmax(300px, 1fr);
  gap: 14px;
  transition: opacity 140ms ease;
}

.demo-section.is-running .demo-grid,
.demo-section.is-running .timeline-panel {
  opacity: .3;
}

.surface,
.timeline-panel {
  border: 1px solid var(--line);
  background: var(--surface);
}

.surface {
  min-width: 0;
}

.surface-header {
  display: flex;
  min-height: 82px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
}

.surface-header > div {
  position: relative;
  padding-left: 34px;
}

.surface-step {
  position: absolute;
  top: 1px;
  left: 0;
  color: var(--faint);
  font-size: 10px;
}

.surface-header h3 {
  margin-top: 5px;
  color: var(--text);
  font-size: 14px;
  line-height: 1.3;
}

.evidence-panel {
  display: flex;
  flex-direction: column;
}

.claim-block {
  margin: 18px;
  padding: 15px;
  border-left: 2px solid var(--amber);
  background: var(--amber-bg);
}

.claim-block p {
  margin-top: 9px;
  color: var(--text);
  font-size: 16px;
  font-weight: 550;
  line-height: 1.48;
}

.evidence-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 0 18px 18px;
}

.evidence-fields > div {
  min-width: 0;
  padding: 13px 12px 13px 0;
  border-top: 1px solid var(--line);
}

.evidence-fields > div:nth-child(even) {
  padding-left: 12px;
  border-left: 1px solid var(--line);
}

.evidence-fields dt,
.attack-probe dt {
  color: var(--faint);
  font-size: 9px;
}

.evidence-fields dd,
.attack-probe dd {
  margin-top: 6px;
  overflow-wrap: anywhere;
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11px;
  line-height: 1.4;
}

.attack-probe {
  margin: 0 18px 18px;
  border: 1px solid #82463e;
  background: var(--red-bg);
}

.attack-probe[hidden] {
  display: none;
}

.attack-probe-header {
  gap: 10px;
  padding: 13px;
  border-bottom: 1px solid #693b36;
}

.attack-shield {
  display: grid;
  width: 28px;
  height: 28px;
  flex: 0 0 28px;
  place-items: center;
  border: 1px solid var(--red);
  color: var(--red);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-weight: 800;
}

.attack-probe-header > div {
  min-width: 0;
  flex: 1;
}

.attack-probe-header strong {
  display: block;
  margin-top: 4px;
  color: var(--red);
  font-size: 12px;
}

.probe-status {
  min-height: 24px;
  border-color: #8d493f;
  color: var(--red);
  font-size: 9px;
}

.attack-probe > p {
  padding: 12px 13px 0;
  color: #e8b5ad;
  font-size: 11px;
  line-height: 1.45;
}

.attack-probe dl {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 12px;
  border-top: 1px solid #693b36;
}

.attack-probe dl > div {
  padding: 11px;
  border-right: 1px solid #693b36;
}

.attack-probe dl > div:last-child {
  border-right: 0;
}

.attack-probe dd {
  color: var(--red);
  font-size: 15px;
  font-weight: 800;
}

.boundary-note {
  margin-top: auto;
  padding: 15px 18px;
  border-top: 1px solid var(--line);
  background: #0a0e12;
}

.boundary-note span {
  color: var(--amber);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
  font-weight: 750;
  text-transform: uppercase;
}

.boundary-note p {
  margin-top: 7px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
}

.graph-panel {
  overflow: hidden;
}

.graph-metrics {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  border-bottom: 1px solid var(--line);
}

.graph-metrics > div {
  min-width: 0;
  padding: 12px 10px;
  border-right: 1px solid var(--line);
  text-align: center;
}

.graph-metrics > div:last-child {
  border-right: 0;
}

.graph-metrics dt {
  color: var(--faint);
  font-size: 8px;
}

.graph-metrics dd {
  margin-top: 5px;
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 18px;
  font-weight: 750;
}

.graph-frame {
  position: relative;
  min-height: 368px;
  overflow-x: auto;
  overflow-y: hidden;
  background: #090d11;
}

#provenanceGraph {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: 368px;
}

.graph-empty {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  place-content: center;
  justify-items: center;
  padding: 30px;
  color: var(--faint);
  text-align: center;
}

.graph-empty.is-hidden {
  display: none;
}

.empty-glyph {
  margin-bottom: 10px;
  color: var(--cyan);
  font-size: 25px;
}

.graph-empty p {
  font-size: 12px;
}

.graph-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 15px;
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 9px;
  text-transform: uppercase;
}

.graph-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.legend-dot.source { background: var(--cyan); }
.legend-dot.derived { background: var(--amber); }
.legend-dot.action { background: var(--green); }

.legend-line {
  width: 18px;
  height: 1px;
  background: var(--muted);
}

.direction-note,
.witness-summary {
  padding: 10px 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 10px;
  line-height: 1.45;
}

.witness-summary {
  color: var(--cyan);
}

.witness-summary.is-block {
  color: var(--red);
}

.frontier-notice {
  display: flex;
  gap: 11px;
  align-items: flex-start;
  padding: 13px 16px;
  border-top: 1px solid #744039;
  background: var(--red-bg);
}

.frontier-notice[hidden] {
  display: none;
}

.frontier-icon {
  display: grid;
  width: 25px;
  height: 25px;
  flex: 0 0 25px;
  place-items: center;
  border: 1px solid var(--red);
  color: var(--red);
  font-weight: 800;
}

.frontier-notice strong {
  display: block;
  margin-top: 4px;
  color: var(--red);
  font-size: 12px;
}

.frontier-notice p {
  margin-top: 5px;
  color: #e3aaa2;
  font-size: 11px;
  line-height: 1.45;
}

.decision-panel {
  display: flex;
  flex-direction: column;
}

.decision-section,
.gateway-section {
  padding: 17px 18px;
  border-bottom: 1px solid var(--line);
}

.decision-section:last-child {
  border-bottom: 0;
}

.decision-section-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 13px;
}

.decision-section-header h4 {
  margin-top: 3px;
  color: var(--text);
  font-size: 12px;
  line-height: 1.3;
}

.section-status {
  font-size: 9px;
  font-weight: 800;
}

.status-pass-text { color: var(--green); }
.status-block-text { color: var(--red); }
.status-neutral-text { color: var(--faint); }

.gateway-section {
  background: #0a0f13;
}

.gateway-outcome {
  display: flex;
  gap: 11px;
  align-items: flex-start;
  padding: 14px;
  border: 1px solid var(--line-strong);
}

.gateway-symbol {
  display: grid;
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  place-items: center;
  border: 1px solid var(--line-strong);
  color: var(--faint);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 17px;
  font-weight: 800;
}

.gateway-outcome strong,
.gateway-outcome span {
  display: block;
}

.gateway-outcome strong {
  font-size: 15px;
}

.gateway-outcome span {
  margin-top: 5px;
  overflow-wrap: anywhere;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.4;
}

.gateway-pass {
  border-color: #527a42;
  background: var(--green-bg);
}

.gateway-pass .gateway-symbol,
.gateway-pass strong {
  border-color: var(--green);
  color: var(--green);
}

.gateway-block {
  border-color: #8a493f;
  background: var(--red-bg);
}

.gateway-block .gateway-symbol,
.gateway-block strong {
  border-color: var(--red);
  color: var(--red);
}

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

.check-item {
  display: grid;
  grid-template-columns: 19px minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
  color: var(--muted);
  font-size: 11px;
}

.check-icon {
  display: grid;
  width: 18px;
  height: 18px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--faint);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 9px;
  font-weight: 800;
}

.check-item strong {
  color: var(--faint);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 8px;
}

.check-pass .check-icon {
  border-color: var(--green);
  background: var(--green-bg);
  color: var(--green);
}

.check-pass strong { color: var(--green); }

.check-block .check-icon {
  border-color: var(--red);
  background: var(--red-bg);
  color: var(--red);
}

.check-block strong { color: var(--red); }

.decision-detail {
  margin-top: 13px;
  overflow-wrap: anywhere;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
}

.policy-requirements {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.policy-requirements li {
  padding: 6px 8px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 9px;
}

.timeline-panel {
  margin-top: 14px;
  padding: 18px;
  overflow: hidden;
  transition: opacity 140ms ease;
}

.timeline-header {
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--line);
}

.timeline-header h3 {
  margin-top: 5px;
  font-size: 14px;
}

.trace-note {
  color: var(--faint);
  font-size: 9px;
  font-weight: 750;
}

.timeline-list {
  display: grid;
  grid-auto-columns: minmax(165px, 1fr);
  grid-auto-flow: column;
  gap: 0;
  min-width: max-content;
  margin: 0;
  padding: 18px 0 4px;
  overflow-x: auto;
  list-style: none;
}

.timeline-item {
  position: relative;
  width: 175px;
  padding-right: 16px;
}

.timeline-item:not(:last-child)::after {
  position: absolute;
  top: 8px;
  right: 8px;
  left: 22px;
  height: 1px;
  background: var(--line-strong);
  content: "";
}

.timeline-marker {
  position: relative;
  z-index: 1;
  display: block;
  width: 17px;
  height: 17px;
  margin-bottom: 10px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
}

.timeline-pass .timeline-marker {
  border-color: var(--green);
  background: var(--green-bg);
}

.timeline-block .timeline-marker {
  border-color: var(--red);
  background: var(--red-bg);
}

.timeline-time,
.timeline-label,
.timeline-detail {
  display: block;
}

.timeline-time {
  margin-bottom: 5px;
  color: var(--faint);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 9px;
}

.timeline-label {
  color: var(--text);
  font-size: 11px;
  font-weight: 650;
  line-height: 1.35;
}

.timeline-detail {
  margin-top: 5px;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.4;
}

.timeline-empty {
  color: var(--faint);
  font-size: 11px;
}

.why-section {
  display: grid;
  grid-template-columns: minmax(280px, .8fr) minmax(480px, 1.2fr);
  gap: 56px;
  margin-top: 82px;
  padding: 55px 0 62px;
  border-top: 1px solid var(--line);
}

.why-heading p:last-child {
  max-width: 570px;
  margin-top: 16px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
}

.why-comparison {
  border-top: 1px solid var(--line);
}

.comparison-row {
  display: grid;
  grid-template-columns: 155px minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.comparison-label {
  color: var(--faint);
  font-size: 10px;
  font-weight: 750;
}

.comparison-row p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.comparison-row strong {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
  text-transform: uppercase;
}

.comparison-weak strong { color: var(--red); }
.comparison-strong strong { color: var(--green); }

.why-statement {
  grid-column: 1 / -1;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 12px;
  padding-top: 29px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 17px;
}

.why-statement strong {
  color: var(--cyan);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 0 28px;
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 9px;
  line-height: 1.5;
  text-transform: uppercase;
}

.graph-edge {
  stroke: #687782;
  stroke-width: 1.5;
  opacity: .9;
}

.graph-edge.edge-frontier {
  stroke: var(--red);
  stroke-width: 2;
  stroke-dasharray: 6 4;
}

.graph-edge-label {
  fill: #8d9ba4;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
  letter-spacing: 0;
  text-anchor: middle;
  text-transform: uppercase;
}

.graph-node circle {
  stroke-width: 1.6;
}

.graph-node text {
  fill: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11px;
  letter-spacing: 0;
}

.graph-node .node-role {
  fill: #82909a;
  font-size: 9px;
  text-transform: uppercase;
}

.graph-node.node-source circle {
  fill: var(--cyan-bg);
  stroke: var(--cyan);
}

.graph-node.node-derived circle {
  fill: var(--amber-bg);
  stroke: var(--amber);
}

.graph-node.node-action circle {
  fill: var(--green-bg);
  stroke: var(--green);
}

.graph-node.node-block circle {
  fill: var(--red-bg);
  stroke: var(--red);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.noscript-warning {
  position: fixed;
  right: 16px;
  bottom: 16px;
  left: 16px;
  z-index: 20;
  padding: 14px 16px;
  border: 1px solid var(--red);
  background: var(--red-bg);
  color: var(--red);
  text-align: center;
}

@media (max-width: 1260px) {
  .hero {
    grid-template-columns: minmax(0, 1fr) 380px;
    gap: 36px;
  }

  .hero h1 {
    font-size: 48px;
  }

  .pipeline-stage {
    min-width: 0;
  }

  .result-banner {
    grid-template-columns: minmax(330px, 1.2fr) minmax(420px, 1fr);
  }

  .result-action-meta {
    grid-column: 1 / -1;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-top: 1px solid var(--line);
  }

  .demo-grid {
    grid-template-columns: minmax(230px, .75fr) minmax(420px, 1.35fr);
  }

  .decision-panel {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .decision-panel .surface-header {
    grid-column: 1 / -1;
  }

  .decision-section,
  .gateway-section {
    border-right: 1px solid var(--line);
    border-bottom: 0;
  }

  .decision-section:last-child {
    border-right: 0;
  }
}

@media (max-width: 980px) {
  .site-header,
  main,
  .site-footer {
    width: min(100% - 32px, 900px);
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 30px;
    padding-top: 48px;
  }

  .hero h1 {
    font-size: 43px;
  }

  .authority-card {
    max-width: 680px;
  }

  .pipeline {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .pipeline-arrow {
    display: none;
  }

  .pipeline-stage {
    padding: 15px 7px;
  }

  .pipeline-stage small {
    display: none;
  }

  .demo-header {
    grid-template-columns: 1fr;
  }

  .scenario-control {
    width: 100%;
  }

  .scenario-button {
    min-width: 0;
    flex: 1;
  }

  .result-banner {
    grid-template-columns: 1fr;
  }

  .result-verdict,
  .result-summary {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .demo-grid {
    grid-template-columns: 1fr;
  }

  .decision-panel {
    grid-column: auto;
    display: block;
  }

  .decision-section,
  .gateway-section {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .decision-section:last-child {
    border-bottom: 0;
  }

  .why-section {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 640px) {
  .site-header,
  main,
  .site-footer {
    width: calc(100% - 24px);
  }

  .site-header {
    min-height: 66px;
  }

  .system-chip {
    display: none;
  }

  .hero {
    padding-top: 38px;
  }

  .kicker {
    align-items: flex-start;
    flex-direction: column;
  }

  .kicker span + span {
    padding-left: 0;
    border-left: 0;
  }

  .hero h1 {
    font-size: 36px;
  }

  .hero-summary {
    font-size: 15px;
  }

  .authority-row {
    grid-template-columns: 24px minmax(0, 1fr);
  }

  .authority-state {
    grid-column: 2;
  }

  .pipeline {
    grid-template-columns: 1fr;
    margin-bottom: 54px;
  }

  .pipeline-stage {
    border-bottom: 1px solid var(--line);
  }

  .pipeline-stage:last-child {
    border-bottom: 0;
  }

  .pipeline-stage small {
    display: block;
  }

  .demo-header h2,
  .why-heading h2 {
    font-size: 27px;
  }

  .scenario-control {
    align-items: stretch;
    flex-direction: column;
  }

  .result-summary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .surface-header {
    align-items: flex-start;
  }

  .evidence-fields {
    grid-template-columns: 1fr;
  }

  .evidence-fields > div:nth-child(even) {
    padding-left: 0;
    border-left: 0;
  }

  .attack-probe dl {
    grid-template-columns: 1fr;
  }

  .attack-probe dl > div {
    border-right: 0;
    border-bottom: 1px solid #693b36;
  }

  .attack-probe dl > div:last-child {
    border-bottom: 0;
  }

  .graph-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .graph-metrics > div:nth-child(3) {
    border-right: 0;
  }

  .graph-metrics > div:nth-child(-n + 3) {
    border-bottom: 1px solid var(--line);
  }

  #provenanceGraph {
    min-width: 620px;
  }

  .why-statement {
    align-items: flex-start;
    flex-direction: column;
  }

  .comparison-row {
    grid-template-columns: 1fr;
    gap: 7px;
  }

  .site-footer {
    flex-direction: column;
  }
}

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