:root {
  --ink: #090b0b;
  --ink-soft: #101313;
  --ink-raised: #161918;
  --paper: #e8e0d1;
  --paper-soft: #bcb4a5;
  --paper-muted: #837d72;
  --rule: rgba(232, 224, 209, 0.18);
  --rule-strong: rgba(232, 224, 209, 0.36);
  --brass: #c99b55;
  --brass-light: #e5bc78;
  --teal: #629e96;
  --teal-deep: #356c69;
  --coral: #dc765f;
  --clay: #986750;
  --slate: #81909a;
  --display: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, Georgia, serif;
  --sans: "Avenir Next", Avenir, "Segoe UI", "Helvetica Neue", sans-serif;
  --mono: "Cascadia Code", "SFMono-Regular", "Liberation Mono", Consolas, monospace;
  --page-gutter: clamp(1.15rem, 4vw, 4.75rem);
  --content-max: 92rem;
  --header-height: 4.6rem;
}

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

html {
  scroll-behavior: smooth;
  background: var(--ink);
}

body {
  margin: 0;
  min-width: 18rem;
  color: var(--paper);
  background:
    radial-gradient(circle at 84% 5%, rgba(98, 158, 150, 0.1), transparent 27rem),
    radial-gradient(circle at 8% 37%, rgba(201, 155, 85, 0.08), transparent 33rem),
    linear-gradient(90deg, transparent calc(100% - 1px), rgba(232, 224, 209, 0.025) 1px),
    linear-gradient(0deg, transparent calc(100% - 1px), rgba(232, 224, 209, 0.02) 1px),
    var(--ink);
  background-size: auto, auto, 5rem 5rem, 5rem 5rem, auto;
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  pointer-events: none;
  opacity: 0.35;
  background:
    repeating-linear-gradient(115deg, transparent 0 21rem, rgba(201, 155, 85, 0.025) 21rem 21.06rem),
    repeating-linear-gradient(65deg, transparent 0 31rem, rgba(98, 158, 150, 0.02) 31rem 31.06rem);
}

button,
select,
input {
  font: inherit;
}

button,
a,
select,
summary {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
}

a {
  color: inherit;
  text-underline-offset: 0.28em;
}

::selection {
  color: var(--ink);
  background: var(--brass-light);
}

[hidden] {
  display: none !important;
}

:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 4px;
}

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

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 999;
  padding: 0.75rem 1rem;
  color: var(--ink);
  background: var(--paper);
  transform: translateY(-160%);
}

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

.archive-frame {
  width: min(100%, var(--content-max));
  margin: 0 auto;
  border-inline: 1px solid rgba(232, 224, 209, 0.06);
  background: rgba(9, 11, 11, 0.42);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  padding: 0 var(--page-gutter);
  border-bottom: 1px solid var(--rule);
  background: rgba(9, 11, 11, 0.88);
  backdrop-filter: blur(18px);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  color: var(--paper);
  text-decoration: none;
}

.wordmark__index {
  display: grid;
  width: 2.1rem;
  height: 2.1rem;
  place-items: center;
  color: var(--ink);
  background: var(--brass);
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: -0.08em;
}

.wordmark__name {
  font-family: var(--display);
  font-size: 1.08rem;
  letter-spacing: 0.015em;
}

.archive-status {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--paper-soft);
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.status-pulse {
  width: 0.42rem;
  height: 0.42rem;
  border: 1px solid var(--teal);
  background: rgba(98, 158, 150, 0.4);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.38fr) minmax(19rem, 0.62fr);
  min-height: min(47rem, calc(100vh - var(--header-height)));
  border-bottom: 1px solid var(--rule);
  overflow: hidden;
}

.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 61.8%, var(--rule) 61.8%, transparent calc(61.8% + 1px)),
    linear-gradient(0deg, transparent 76%, rgba(232, 224, 209, 0.08) 76%, transparent calc(76% + 1px));
}

.hero__copy {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(5rem, 11vw, 9.5rem) var(--page-gutter) clamp(4rem, 8vw, 7rem);
}

.eyebrow,
.section-index,
.instrument-label,
.detail-section-label,
.prologue-card__kicker {
  margin: 0 0 1.4rem;
  color: var(--brass);
  font-family: var(--mono);
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 10ch;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(3.75rem, 8.5vw, 8.8rem);
  font-weight: 400;
  line-height: 0.82;
  letter-spacing: -0.064em;
}

.hero h1 em {
  color: var(--teal);
  font-weight: 400;
}

.hero__lede {
  max-width: 40rem;
  margin: clamp(2.4rem, 5vw, 4.5rem) 0 0 auto;
  padding-left: clamp(0rem, 8vw, 8rem);
  color: var(--paper-soft);
  font-size: clamp(1rem, 1.4vw, 1.22rem);
}

.hero__instrument {
  position: relative;
  z-index: 1;
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(3rem, 6vw, 5.5rem) var(--page-gutter);
  border-left: 1px solid var(--rule);
  background: linear-gradient(145deg, rgba(22, 25, 24, 0.82), rgba(9, 11, 11, 0.35));
}

.view-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-block: 1px solid var(--rule-strong);
}

.view-button {
  display: flex;
  min-height: 4rem;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  border: 0;
  background: transparent;
  color: var(--paper-muted);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: color 160ms ease, background 160ms ease;
}

.view-button + .view-button {
  border-left: 1px solid var(--rule-strong);
}

.view-button span {
  color: var(--paper-muted);
  font-size: 0.58rem;
}

.view-button:hover:not(:disabled),
.view-button.is-active {
  color: var(--ink);
  background: var(--brass);
}

.view-button:disabled {
  cursor: wait;
  opacity: 0.45;
}

.hero-weave {
  position: relative;
  height: 11rem;
  margin: 3rem 0 1rem;
  overflow: hidden;
}

.hero-weave span {
  position: absolute;
  left: -12%;
  width: 128%;
  height: 1px;
  transform-origin: 50% 50%;
}

.hero-weave span::after {
  position: absolute;
  right: 13%;
  top: -0.25rem;
  width: 0.5rem;
  height: 0.5rem;
  content: "";
  background: currentColor;
}

.hero-weave span:nth-child(1) {
  top: 32%;
  color: var(--brass);
  background: currentColor;
  transform: rotate(10deg);
}

.hero-weave span:nth-child(2) {
  top: 45%;
  color: var(--teal);
  background: currentColor;
  transform: rotate(-8deg);
}

.hero-weave span:nth-child(3) {
  top: 58%;
  color: var(--coral);
  background: currentColor;
  transform: rotate(5deg);
}

.hero-weave span:nth-child(4) {
  top: 70%;
  color: var(--slate);
  background: currentColor;
  transform: rotate(-3deg);
}

.hero__range {
  display: flex;
  justify-content: space-between;
  margin: auto 0 0;
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero__range span {
  color: var(--brass);
}

.notice {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1rem var(--page-gutter);
  border-bottom: 1px solid var(--coral);
  color: #f1c8bd;
  background: rgba(220, 118, 95, 0.12);
  font-size: 0.86rem;
}

.notice__mark {
  display: grid;
  width: 1.5rem;
  height: 1.5rem;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--coral);
  font-family: var(--mono);
  font-weight: 800;
}

.snapshot-strip {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1rem;
  padding: 0.7rem var(--page-gutter);
  border-bottom: 1px solid var(--rule);
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.snapshot-strip strong {
  color: var(--teal);
  font-weight: 600;
}

.snapshot-strip span:last-child {
  text-align: right;
}

.controls {
  position: sticky;
  top: var(--header-height);
  z-index: 20;
  padding: 1.6rem var(--page-gutter) 1rem;
  border-bottom: 1px solid var(--rule-strong);
  background: rgba(9, 11, 11, 0.96);
  box-shadow: 0 1.5rem 3rem rgba(0, 0, 0, 0.2);
}

.controls__heading,
.density-heading,
.view-heading,
.section-rule-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
}

.controls__heading h2,
.density-heading h2,
.context-panel h2,
.view-heading h2,
.section-rule-heading h3,
.methodology h3 {
  margin: 0;
  font-family: var(--display);
  font-weight: 400;
  line-height: 1.03;
}

.controls__heading h2 {
  font-size: clamp(1.45rem, 2vw, 2rem);
}

.controls .section-index {
  margin-bottom: 0.35rem;
}

.union-note {
  margin: 0 0 0.25rem;
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.union-note span {
  color: var(--teal);
  font-size: 1rem;
}

.controls fieldset {
  min-width: 0;
  padding: 0;
  margin: 1.2rem 0 0;
  border: 0;
}

.controls fieldset:disabled {
  opacity: 0.45;
}

.harness-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.filter-chip {
  display: inline-flex;
  min-height: 2.35rem;
  align-items: center;
  gap: 0.55rem;
  padding: 0.46rem 0.8rem;
  border: 1px solid var(--rule);
  border-radius: 1px;
  color: var(--paper-soft);
  background: transparent;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.035em;
  transition: border-color 140ms ease, color 140ms ease, background 140ms ease;
}

.filter-chip:hover {
  color: var(--paper);
  border-color: var(--rule-strong);
}

.filter-chip.is-active {
  color: var(--ink);
  border-color: var(--paper);
  background: var(--paper);
}

.chip-mark,
.lane-dot {
  width: 0.44rem;
  height: 0.44rem;
  background: var(--paper-muted);
}

.chip-mark--claude,
.lane-dot--claude {
  background: var(--brass);
}

.chip-mark--codex,
.lane-dot--codex {
  background: var(--teal);
}

.chip-mark--opencode,
.lane-dot--opencode {
  background: var(--coral);
}

.chip-mark--hermes,
.lane-dot--hermes {
  background: var(--slate);
}

.chip-mark--agnostic,
.lane-dot--agnostic {
  border: 1px solid var(--paper);
  background: transparent;
  transform: rotate(45deg);
}

.secondary-filters {
  display: grid;
  grid-template-columns: repeat(3, minmax(9rem, 1fr)) auto;
  gap: 0.55rem;
  margin-top: 0.75rem;
}

.select-field {
  position: relative;
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.4rem 0.65rem 0.3rem;
  border: 1px solid var(--rule);
  background: var(--ink-soft);
}

.select-field span {
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.55rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.select-field select {
  min-width: 0;
  width: 100%;
  border: 0;
  color: var(--paper);
  background: transparent;
  font-size: 0.76rem;
  cursor: pointer;
}

.select-field select:focus {
  outline: 0;
}

.select-field:focus-within {
  border-color: var(--coral);
  box-shadow: 0 0 0 1px var(--coral);
}

.reset-button,
.state-panel button,
.state-panel a {
  min-height: 3.25rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--brass);
  color: var(--brass-light);
  background: transparent;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.reset-button:hover:not(:disabled),
.state-panel button:hover,
.state-panel a:hover {
  color: var(--ink);
  background: var(--brass);
}

.reset-button:disabled {
  opacity: 0.3;
  cursor: default;
}

.filter-readout {
  display: flex;
  justify-content: space-between;
  margin-top: 0.8rem;
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.59rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.filter-readout strong {
  color: var(--paper);
  font-weight: 600;
}

.context-panel {
  display: grid;
  grid-template-columns: minmax(19rem, 0.72fr) minmax(0, 1.28fr);
  border-bottom: 1px solid var(--rule);
}

.context-panel__intro {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 27rem;
  padding: clamp(3rem, 6vw, 6.5rem) var(--page-gutter);
  border-right: 1px solid var(--rule);
}

.context-panel h2 {
  max-width: 12ch;
  font-size: clamp(2.8rem, 5vw, 5.6rem);
  letter-spacing: -0.04em;
}

.context-panel__intro > p:last-child {
  max-width: 29rem;
  margin: 2rem 0 0;
  color: var(--paper-muted);
}

.metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.metric {
  position: relative;
  display: flex;
  min-height: 13.5rem;
  flex-direction: column;
  padding: 1.6rem;
  border-bottom: 1px solid var(--rule);
  overflow: hidden;
}

.metric:nth-child(odd) {
  border-right: 1px solid var(--rule);
}

.metric:nth-child(n + 3) {
  border-bottom: 0;
}

.metric::after {
  position: absolute;
  right: -2rem;
  bottom: -3.5rem;
  width: 10rem;
  height: 10rem;
  content: "";
  border: 1px solid rgba(201, 155, 85, 0.13);
  transform: rotate(35deg);
}

.metric__top {
  display: flex;
  justify-content: space-between;
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.metric__top strong {
  color: var(--coral);
}

.metric__value {
  margin: auto 0 0;
  color: var(--brass-light);
  font-family: var(--display);
  font-size: clamp(2.65rem, 4vw, 4.5rem);
  line-height: 0.9;
  letter-spacing: -0.055em;
}

.metric h3 {
  margin: 0.6rem 0 0;
  font-size: 0.92rem;
  font-weight: 500;
}

.metric__caveat,
.metric__snapshot {
  margin: 0.7rem 0 0;
  color: var(--paper-muted);
  font-size: 0.68rem;
}

.metric__snapshot {
  font-family: var(--mono);
  font-size: 0.55rem;
  text-transform: uppercase;
}

.density-section {
  padding: clamp(3.5rem, 7vw, 6.5rem) var(--page-gutter);
  border-bottom: 1px solid var(--rule);
}

.density-heading h2 {
  font-size: clamp(2rem, 3.5vw, 3.8rem);
}

.density-heading > p {
  margin: 0 0 0.5rem;
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.62rem;
  text-align: right;
  text-transform: uppercase;
}

.density-heading > p strong {
  color: var(--coral);
}

.density-chart {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  height: 16rem;
  align-items: end;
  gap: clamp(0.35rem, 1.5vw, 1.2rem);
  padding-top: 3rem;
  border-bottom: 1px solid var(--rule-strong);
  background: repeating-linear-gradient(0deg, transparent 0 3.9rem, var(--rule) 3.9rem 4rem);
}

.density-column {
  display: grid;
  height: 100%;
  grid-template-rows: 1.25rem 1fr 1.9rem;
  align-items: end;
  text-align: center;
}

.density-column__value,
.density-column__month {
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.58rem;
}

.density-column__bar {
  display: block;
  width: min(100%, 4rem);
  height: var(--density);
  min-height: 0.2rem;
  justify-self: center;
  background:
    repeating-linear-gradient(90deg, transparent 0 3px, rgba(9, 11, 11, 0.24) 3px 4px),
    linear-gradient(0deg, var(--teal-deep), var(--teal));
  transition: height 300ms ease;
}

.density-column:nth-child(3) .density-column__bar {
  background:
    repeating-linear-gradient(90deg, transparent 0 3px, rgba(9, 11, 11, 0.24) 3px 4px),
    linear-gradient(0deg, #846230, var(--brass));
}

.density-column__month {
  align-self: center;
  color: var(--paper);
  text-transform: uppercase;
}

.harness-totals {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 1.5rem;
  border-block: 1px solid var(--rule);
}

.harness-total {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1rem;
  border-right: 1px solid var(--rule);
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.65rem;
}

.harness-total:last-child {
  border-right: 0;
}

.harness-total strong {
  color: var(--paper);
}

.harness-total--claude {
  border-top: 2px solid var(--brass);
}

.harness-total--codex {
  border-top: 2px solid var(--teal);
}

.harness-total--opencode {
  border-top: 2px solid var(--coral);
}

.state-panel {
  margin: clamp(2rem, 6vw, 5rem) var(--page-gutter);
  padding: clamp(2rem, 5vw, 4.5rem);
  border: 1px solid var(--rule-strong);
  background: rgba(22, 25, 24, 0.78);
}

.state-panel--loading {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
}

.loading-rule {
  width: 5rem;
  height: 1px;
  background: linear-gradient(90deg, var(--brass) 50%, var(--rule) 50%);
  background-size: 200% 100%;
  animation: loading-line 1.2s linear infinite;
}

.state-panel h2 {
  max-width: 22ch;
  margin: 0.6rem 0;
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 4rem);
  font-weight: 400;
  line-height: 1;
}

.state-panel p {
  max-width: 43rem;
  color: var(--paper-muted);
}

.state-panel__code {
  color: var(--coral) !important;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.13em;
}

.state-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.5rem;
}

.state-panel a {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.view-section {
  padding: clamp(5rem, 9vw, 9rem) var(--page-gutter);
  border-bottom: 1px solid var(--rule);
}

.view-heading {
  margin-bottom: clamp(3rem, 7vw, 6rem);
}

.view-heading h2 {
  font-size: clamp(3rem, 6.8vw, 7.1rem);
  letter-spacing: -0.055em;
}

.view-heading > p {
  max-width: 25rem;
  margin: 0 0 0.75rem;
  color: var(--paper-muted);
}

.prologue-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) minmax(14rem, 0.42fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: center;
  padding: 2.2rem 0;
  border-block: 1px solid var(--rule-strong);
}

.prologue-card__marker {
  display: grid;
  width: 4rem;
  height: 4rem;
  place-items: center;
  border: 1px solid var(--teal);
  color: var(--teal);
  font-family: var(--display);
  font-size: 2rem;
  transform: rotate(45deg);
}

.prologue-card__marker::first-letter {
  transform: rotate(-45deg);
}

.prologue-card__kicker {
  margin-bottom: 0.45rem;
  color: var(--teal);
}

.prologue-card h3 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.8rem, 3.4vw, 3.4rem);
  font-weight: 400;
  line-height: 1;
}

.prologue-card__copy > p:last-child,
.prologue-card__constraint {
  color: var(--paper-muted);
}

.prologue-card__constraint {
  margin: 0;
  padding-left: 1.5rem;
  border-left: 1px solid var(--rule);
  font-size: 0.72rem;
}

.prologue-card__constraint span {
  color: var(--paper-soft);
  font-family: var(--mono);
  font-size: 0.59rem;
}

.story-layout {
  display: grid;
  grid-template-columns: 11rem minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  margin-top: 5rem;
}

.lane-legend {
  align-self: start;
  position: sticky;
  top: 18.5rem;
  padding-top: 0.7rem;
  border-top: 1px solid var(--rule-strong);
}

.lane-legend__title {
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.lane-legend ul {
  display: grid;
  gap: 0.85rem;
  padding: 0;
  margin: 1.4rem 0 0;
  list-style: none;
  color: var(--paper-soft);
  font-size: 0.7rem;
}

.lane-legend li {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.story-stream-wrap {
  min-width: 0;
}

.lane-map {
  display: grid;
  gap: 0.8rem;
  padding: 1.4rem 0 1.6rem;
  border-block: 1px solid var(--rule);
}

.thread-row {
  display: grid;
  grid-template-columns: 6.5rem minmax(0, 1fr);
  align-items: center;
  gap: 1rem;
}

.thread-row__label {
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.55rem;
}

.thread-row__track {
  position: relative;
  height: 1.25rem;
}

.thread-line {
  position: absolute;
  top: 50%;
  right: 0;
  left: 0;
  height: 1px;
  background: var(--rule);
}

.thread-row--claude .thread-line {
  background: linear-gradient(90deg, transparent, var(--brass), transparent);
}

.thread-row--codex .thread-line {
  background: linear-gradient(90deg, transparent, var(--teal), transparent);
}

.thread-row--opencode .thread-line {
  background: linear-gradient(90deg, transparent, var(--coral), transparent);
}

.thread-row--hermes .thread-line {
  background: linear-gradient(90deg, transparent, var(--slate), transparent);
}

.thread-row--agnostic .thread-line {
  background: repeating-linear-gradient(90deg, var(--paper-muted) 0 3px, transparent 3px 8px);
}

.thread-node {
  position: absolute;
  top: 50%;
  left: calc(var(--node-position) + var(--node-shift, 0px));
  display: grid;
  width: 1.5rem;
  height: 1.5rem;
  padding: 0;
  place-items: center;
  border: 1px solid currentColor;
  color: var(--paper);
  background: var(--ink);
  cursor: pointer;
  transform: translate(-50%, -50%) rotate(45deg);
}

.thread-node span {
  font-family: var(--mono);
  font-size: 0.46rem;
  transform: rotate(-45deg);
}

.thread-row--claude .thread-node {
  color: var(--brass);
}

.thread-row--codex .thread-node {
  color: var(--teal);
}

.thread-row--opencode .thread-node {
  color: var(--coral);
}

.thread-row--hermes .thread-node {
  color: var(--slate);
}

.story-stream {
  margin-top: 4rem;
}

.arc-card {
  position: relative;
  display: grid;
  grid-template-columns: 5.5rem minmax(0, 1fr);
  border-top: 1px solid var(--rule-strong);
  transition: background 180ms ease;
}

.arc-card:last-child {
  border-bottom: 1px solid var(--rule-strong);
}

.arc-card:hover {
  background: rgba(232, 224, 209, 0.025);
}

.arc-card--transfer::after {
  position: absolute;
  top: -1px;
  right: 0;
  width: 18%;
  height: 2px;
  content: "";
  background: linear-gradient(90deg, transparent, var(--teal));
}

.arc-card__index {
  position: relative;
  padding-top: 2.2rem;
  border-right: 1px solid var(--rule);
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.62rem;
}

.arc-card__index i {
  position: absolute;
  top: 3.8rem;
  right: -0.28rem;
  width: 0.5rem;
  height: 0.5rem;
  border: 1px solid var(--brass);
  background: var(--ink);
  transform: rotate(45deg);
}

.arc-card--transfer .arc-card__index i {
  border-color: var(--teal);
  background: var(--teal-deep);
}

.arc-card__body {
  padding: clamp(2rem, 5vw, 4.4rem) 0 clamp(2.3rem, 5vw, 4.5rem) clamp(1.5rem, 4vw, 4rem);
}

.arc-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.4rem;
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.59rem;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.arc-card__meta span:nth-child(2) {
  color: var(--brass);
}

.arc-card__meta span:nth-child(3) {
  color: var(--teal);
}

.arc-card h3 {
  max-width: 19ch;
  margin: 1.1rem 0 0;
  font-family: var(--display);
  font-size: clamp(2rem, 4.4vw, 4.6rem);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.035em;
}

.arc-card__claim {
  max-width: 47rem;
  margin: 1.5rem 0 0;
  color: var(--paper-soft);
  font-size: clamp(0.98rem, 1.4vw, 1.15rem);
}

.arc-card__effects {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2.4rem;
}

.arc-card__effects p {
  display: grid;
  grid-template-columns: 1.7rem 1fr;
  gap: 0.7rem;
  margin: 0;
  color: var(--paper-muted);
  font-size: 0.75rem;
}

.arc-card__effects strong {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--paper-soft);
  font-family: var(--mono);
  font-size: 0.54rem;
  letter-spacing: 0.06em;
}

.effect-sign {
  font-family: var(--display);
  font-size: 1.8rem;
  line-height: 1;
}

.effect-sign--positive {
  color: var(--teal);
}

.effect-sign--negative {
  color: var(--coral);
}

.arc-card__footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.9rem 1rem;
  align-items: center;
  margin-top: 2.6rem;
}

.path-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.path-pill {
  padding: 0.28rem 0.45rem;
  border: 1px solid var(--rule);
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.5rem;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.path-pill--claude {
  border-top-color: var(--brass);
}

.path-pill--codex {
  border-top-color: var(--teal);
}

.path-pill--opencode {
  border-top-color: var(--coral);
}

.path-pill--hermes {
  border-top-color: var(--slate);
}

.path-pill--agnostic {
  border-style: dashed;
  color: var(--paper-soft);
}

.transfer-badge {
  padding: 0.35rem 0.5rem;
  border: 0;
  border-bottom: 1px solid var(--teal);
  color: var(--teal);
  background: transparent;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.53rem;
  text-transform: uppercase;
}

.transfer-badge--quiet {
  color: var(--paper-muted);
  border-color: var(--rule);
}

.arc-open {
  grid-column: 1 / -1;
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
  border: 0;
  border-top: 1px solid var(--rule);
  color: var(--paper);
  background: transparent;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.61rem;
  letter-spacing: 0.08em;
  text-align: left;
  text-transform: uppercase;
}

.arc-open span:last-child {
  color: var(--brass);
  font-size: 1rem;
  transition: transform 150ms ease;
}

.arc-open:hover span:last-child {
  transform: translate(0.2rem, -0.2rem);
}

.insights-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1px;
  border: 1px solid var(--rule);
  background: var(--rule);
}

.insight-card {
  grid-column: span 6;
  min-height: 22rem;
  padding: clamp(1.6rem, 4vw, 3.4rem);
  background: var(--ink-soft);
}

.insight-card:nth-child(3n) {
  grid-column: span 8;
}

.insight-card:nth-child(3n + 1):last-child {
  grid-column: span 12;
}

.insight-card__number {
  margin: 0;
  color: var(--brass);
  font-family: var(--mono);
  font-size: 0.61rem;
}

.insight-card h3 {
  max-width: 15ch;
  margin: 4.8rem 0 0;
  font-family: var(--display);
  font-size: clamp(2rem, 3.8vw, 4rem);
  font-weight: 400;
  line-height: 0.96;
}

.insight-card > p:not(.insight-card__number) {
  max-width: 32rem;
  color: var(--paper-muted);
}

.support-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 2rem;
}

.support-list button,
.support-list span {
  padding: 0.4rem 0.55rem;
  border: 1px solid var(--rule);
  color: var(--paper-muted);
  background: transparent;
  font-family: var(--mono);
  font-size: 0.52rem;
}

.support-list button {
  cursor: pointer;
}

.support-list button:hover {
  color: var(--ink);
  background: var(--brass);
}

.depth-dossier,
.prompt-evolution-section,
.governance-section {
  margin-top: clamp(7rem, 14vw, 14rem);
}

.depth-dossier__heading {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(18rem, 0.6fr);
  gap: clamp(2rem, 7vw, 7rem);
  align-items: end;
}

.depth-dossier__heading > p {
  max-width: 31rem;
  margin: 0 0 0.8rem;
  color: var(--paper-muted);
}

.depth-corpus {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--rule-strong);
}

.depth-corpus p {
  min-height: 8rem;
  margin: 0;
  padding: 1.35rem;
  border-right: 1px solid var(--rule);
  color: var(--paper-muted);
  font-size: 0.72rem;
}

.depth-corpus p:last-child {
  border-right: 0;
}

.depth-corpus strong {
  display: block;
  margin-bottom: 0.55rem;
  color: var(--teal);
  font-family: var(--mono);
  font-size: 0.61rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.depth-theses {
  counter-reset: depth-thesis;
}

.depth-thesis {
  display: grid;
  grid-template-columns: minmax(8rem, 0.24fr) minmax(0, 1fr);
  column-gap: clamp(1.5rem, 5vw, 5rem);
  padding: clamp(3rem, 7vw, 7rem) 0;
  border-bottom: 1px solid var(--rule-strong);
}

.depth-thesis > header {
  grid-row: 1 / span 5;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--brass);
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.55rem;
  text-transform: uppercase;
}

.depth-thesis > header p {
  margin: 0;
  color: var(--brass);
}

.depth-thesis h4 {
  max-width: 18ch;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2.7rem, 5vw, 5.7rem);
  font-weight: 400;
  line-height: 0.94;
  letter-spacing: -0.045em;
}

.depth-thesis__claim {
  max-width: 56rem;
  margin: 2rem 0 0;
  color: var(--paper-soft);
  font-size: clamp(1rem, 1.6vw, 1.3rem);
}

.depth-causal-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 3rem;
  background: var(--rule);
}

.depth-facet {
  min-height: 13rem;
  padding: 1.5rem;
  background: var(--ink-soft);
}

.depth-facet::before {
  display: block;
  width: 2.5rem;
  height: 2px;
  margin-bottom: 1.3rem;
  content: "";
  background: var(--paper-muted);
}

.depth-facet--positive::before {
  background: var(--teal);
}

.depth-facet--negative::before {
  background: var(--coral);
}

.depth-facet--mechanism::before {
  background: var(--brass);
}

.depth-facet span,
.depth-countercheck span,
.depth-locators > span {
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.54rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.depth-facet p {
  margin: 1rem 0 0;
  color: var(--paper-soft);
}

.depth-countercheck {
  margin-top: 1px;
  border: 1px solid var(--rule);
  background: rgba(17, 20, 19, 0.6);
}

.depth-countercheck summary {
  padding: 1.15rem 1.5rem;
  color: var(--brass);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.61rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.depth-countercheck__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  border-top: 1px solid var(--rule);
  background: var(--rule);
}

.depth-countercheck__grid > div,
.depth-locators {
  padding: 1.5rem;
  background: var(--ink);
}

.depth-countercheck__grid p,
.depth-locators p {
  margin: 0.7rem 0 0;
  color: var(--paper-muted);
  font-size: 0.72rem;
}

.depth-locators {
  border-top: 1px solid var(--rule);
}

.depth-countercheck > .support-list {
  padding: 0 1.5rem 1.5rem;
}

.prompt-phases {
  position: relative;
  margin-top: 3rem;
  border-top: 1px solid var(--rule-strong);
}

.prompt-phase {
  display: grid;
  grid-template-columns: 6rem minmax(0, 1fr);
  gap: clamp(1rem, 4vw, 4rem);
  min-height: 22rem;
  padding: 3rem 0;
  border-bottom: 1px solid var(--rule);
}

.prompt-phase__index {
  position: relative;
  color: var(--brass);
  font-family: var(--mono);
  font-size: 0.63rem;
}

.prompt-phase__index i {
  position: absolute;
  top: 1.7rem;
  bottom: -3rem;
  left: 0.25rem;
  width: 1px;
  background: linear-gradient(var(--brass), var(--teal));
}

.prompt-phase__body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem 3rem;
}

.prompt-phase__time {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--teal);
  font-family: var(--mono);
  font-size: 0.58rem;
  text-transform: uppercase;
}

.prompt-phase h4 {
  grid-column: 1 / -1;
  max-width: 16ch;
  margin: 1rem 0 2rem;
  font-family: var(--display);
  font-size: clamp(2.3rem, 4vw, 4.5rem);
  font-weight: 400;
  line-height: 0.96;
}

.prompt-phase__body > p:not(.prompt-phase__time) {
  margin: 0;
  padding-top: 1rem;
  border-top: 1px solid var(--teal);
  color: var(--paper-muted);
}

.prompt-phase__body > p.prompt-phase__cost {
  border-color: var(--coral);
}

.prompt-phase__body > p strong {
  display: block;
  margin-bottom: 0.75rem;
  color: var(--paper);
  font-family: var(--mono);
  font-size: 0.55rem;
  text-transform: uppercase;
}

.prompt-phase__evidence {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.5rem;
  align-items: end;
  margin-top: 1.5rem;
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.52rem;
}

.prompt-phase__evidence .support-list {
  margin-top: 0;
  justify-content: flex-end;
}

.goal-milestone {
  display: grid;
  grid-template-columns: minmax(9rem, 0.35fr) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 6rem);
  margin-top: 4rem;
  padding: clamp(2rem, 5vw, 5rem);
  border: 1px solid var(--brass);
  background:
    linear-gradient(120deg, rgba(201, 155, 85, 0.1), transparent 44%),
    var(--ink-soft);
}

.goal-milestone__mark {
  align-self: center;
  color: var(--brass);
  font-family: var(--mono);
  font-size: clamp(2.5rem, 6vw, 6rem);
  letter-spacing: -0.08em;
}

.goal-milestone h4 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 4.2rem);
  font-weight: 400;
}

.goal-milestone p,
.goal-milestone blockquote {
  max-width: 48rem;
  color: var(--paper-soft);
}

.goal-milestone blockquote {
  margin: 2rem 0;
  padding-left: 1.4rem;
  border-left: 2px solid var(--teal);
  font-family: var(--display);
  font-size: 1.55rem;
}

.goal-milestone__boundary {
  color: var(--coral) !important;
  font-size: 0.72rem;
}

.governance-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin-top: 3rem;
  border: 1px solid var(--rule);
  background: var(--rule);
}

.governance-columns > section {
  min-width: 0;
  padding: clamp(1.5rem, 4vw, 3.5rem);
  background: var(--ink-soft);
}

.governance-kicker {
  margin: 0 0 1rem;
  color: var(--brass);
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.governance-columns h4 {
  max-width: 17ch;
  margin: 0 0 3rem;
  font-family: var(--display);
  font-size: clamp(2rem, 3.2vw, 3.5rem);
  font-weight: 400;
  line-height: 1;
}

.governance-stage,
.permission-stage {
  padding: 1.7rem 0;
  border-top: 1px solid var(--rule);
}

.governance-stage > header {
  display: flex;
  justify-content: space-between;
  color: var(--teal);
  font-family: var(--mono);
  font-size: 0.55rem;
}

.governance-stage h5,
.permission-stage h5 {
  margin: 1.2rem 0 0.7rem;
  color: var(--paper);
  font-family: var(--display);
  font-size: 1.65rem;
  font-weight: 400;
}

.governance-stage > p,
.permission-stage p {
  color: var(--paper-muted);
  font-size: 0.74rem;
}

.governance-stage dl {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin: 1.5rem 0;
  background: var(--rule);
}

.governance-stage dl div {
  padding: 1rem;
  background: var(--ink);
}

.governance-stage dt {
  color: var(--teal);
  font-family: var(--mono);
  font-size: 0.5rem;
  text-transform: uppercase;
}

.governance-stage dl div:last-child dt {
  color: var(--coral);
}

.governance-stage dd {
  margin: 0.6rem 0 0;
  color: var(--paper-muted);
  font-size: 0.65rem;
}

.governance-stage > small,
.permission-stage small {
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.5rem;
}

.permission-stage {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  gap: 1rem;
}

.permission-stage > span {
  color: var(--brass);
  font-family: var(--mono);
  font-size: 0.55rem;
}

.permission-stage h5 {
  margin-top: 0;
}

.transfer-section,
.principles-section,
.methodology {
  margin-top: clamp(6rem, 12vw, 12rem);
}

.section-rule-heading {
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--rule-strong);
}

.section-rule-heading h3,
.methodology h3 {
  max-width: 18ch;
  font-size: clamp(2.4rem, 5vw, 5rem);
  letter-spacing: -0.04em;
}

.transfer-list {
  border-bottom: 1px solid var(--rule-strong);
}

.transfer-row {
  display: grid;
  grid-template-columns: 7.5rem minmax(17rem, 0.9fr) minmax(18rem, 1.25fr) auto;
  gap: 1.4rem;
  align-items: center;
  padding: 2.2rem 0;
  border-bottom: 1px solid var(--rule);
}

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

.transfer-row.is-targeted {
  background: linear-gradient(90deg, rgba(98, 158, 150, 0.12), transparent);
}

.transfer-row__id {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  color: var(--teal);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.transfer-row__id small {
  color: var(--paper-muted);
  font-size: 0.52rem;
}

.transfer-row__route {
  display: grid;
  grid-template-columns: 1fr minmax(3.5rem, 0.6fr) 1fr;
  align-items: center;
}

.transfer-endpoint {
  display: flex;
  min-width: 0;
  flex-direction: column;
}

.transfer-endpoint small {
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.48rem;
  text-transform: uppercase;
}

.transfer-endpoint strong {
  overflow: hidden;
  font-size: 0.7rem;
  font-weight: 500;
  text-overflow: ellipsis;
}

.transfer-thread {
  display: flex;
  align-items: center;
  color: var(--brass);
}

.transfer-thread i {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--teal), var(--brass));
}

.transfer-row__copy h4 {
  margin: 0;
  font-family: var(--display);
  font-size: 1.55rem;
  font-weight: 400;
  line-height: 1.05;
}

.transfer-row__copy p {
  margin: 0.65rem 0 0;
  color: var(--paper-muted);
  font-size: 0.7rem;
}

.transfer-row__copy .transfer-boundary {
  color: var(--coral);
}

.transfer-open {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--rule);
  color: var(--paper-soft);
  background: transparent;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.55rem;
  white-space: nowrap;
}

.transfer-open:hover {
  border-color: var(--brass);
  color: var(--brass);
}

.filtered-note {
  padding: 2rem 0;
  color: var(--paper-muted);
}

.principles-list {
  padding: 0;
  margin: 0;
  list-style: none;
}

.principles-list li {
  display: grid;
  grid-template-columns: 4rem minmax(0, 1fr) auto;
  gap: 1.5rem;
  align-items: center;
  padding: 1.3rem 0;
  border-bottom: 1px solid var(--rule);
}

.principle-number {
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.58rem;
}

.principles-list p {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.35rem, 2.6vw, 2.5rem);
  line-height: 1.05;
}

.principles-list div span {
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.52rem;
  text-transform: uppercase;
}

.principles-list button {
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--rule);
  color: var(--brass);
  background: transparent;
  cursor: pointer;
}

.methodology {
  display: grid;
  grid-template-columns: minmax(15rem, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(2rem, 7vw, 7rem);
  padding: clamp(2.5rem, 6vw, 6rem);
  border: 1px solid var(--rule-strong);
  background:
    linear-gradient(135deg, rgba(201, 155, 85, 0.05), transparent 40%),
    var(--ink-soft);
}

.methodology__content {
  align-self: end;
}

.methodology__statement {
  display: grid;
  gap: 1rem;
}

.methodology__statement p {
  margin: 0;
  color: var(--paper-muted);
}

.methodology__statement strong {
  color: var(--paper);
}

.evidence-key {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin: 2rem 0 0;
  border: 1px solid var(--rule);
}

.evidence-key div {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  padding: 0.75rem;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.evidence-key div:nth-child(even) {
  border-right: 0;
}

.evidence-key div:nth-child(n + 3) {
  border-bottom: 0;
}

.evidence-key dt {
  color: var(--brass);
  font-family: var(--mono);
}

.evidence-key dd {
  margin: 0;
  color: var(--paper-muted);
  font-size: 0.65rem;
}

.methodology__footnote {
  margin: 1.5rem 0 0;
  color: var(--coral);
  font-family: var(--mono);
  font-size: 0.57rem;
  text-transform: uppercase;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  padding: 2rem var(--page-gutter);
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.56rem;
  text-transform: uppercase;
}

.site-footer p {
  margin: 0;
}

.arc-dialog {
  width: min(49rem, 100%);
  max-width: none;
  height: 100dvh;
  max-height: none;
  margin: 0 0 0 auto;
  padding: 0;
  border: 0;
  border-left: 1px solid var(--brass);
  color: var(--paper);
  background: #0d0f0f;
  box-shadow: -3rem 0 7rem rgba(0, 0, 0, 0.58);
  overflow: auto;
}

.arc-dialog::backdrop {
  background: rgba(1, 2, 2, 0.78);
  backdrop-filter: blur(3px);
}

.arc-dialog[open] {
  animation: drawer-in 330ms cubic-bezier(0.2, 0.75, 0.25, 1) both;
}

.arc-dialog__rail {
  position: fixed;
  top: 0;
  right: min(48rem, calc(100% - 1rem));
  bottom: 0;
  width: 1px;
  pointer-events: none;
  background: linear-gradient(var(--brass), var(--teal), var(--coral));
}

.arc-dialog__inner {
  min-height: 100%;
  padding: clamp(1.25rem, 4vw, 3.5rem);
}

.arc-dialog__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--rule-strong);
}

.detail-kicker {
  margin: 0 0 0.6rem;
  color: var(--brass);
  font-family: var(--mono);
  font-size: 0.59rem;
  text-transform: uppercase;
}

.arc-dialog h2 {
  max-width: 14ch;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2.4rem, 5.5vw, 5.6rem);
  font-weight: 400;
  line-height: 0.9;
  letter-spacing: -0.045em;
}

.dialog-close {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 0;
  border: 0;
  border-bottom: 1px solid var(--rule);
  color: var(--paper-muted);
  background: transparent;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.55rem;
  text-transform: uppercase;
}

.dialog-close span:first-child {
  color: var(--coral);
  font-size: 1.2rem;
}

.detail-claim {
  max-width: 40rem;
  margin: 2.5rem 0;
  color: var(--paper-soft);
  font-size: 1.05rem;
}

.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 2.5rem;
}

.detail-meta span {
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--rule);
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.52rem;
  text-transform: uppercase;
}

.arc-chain {
  padding: 0;
  margin: 0;
  list-style: none;
}

.arc-chain__step {
  position: relative;
  display: grid;
  grid-template-columns: 3.2rem minmax(0, 1fr);
  gap: 1.5rem;
  padding: 1.8rem 0;
  border-top: 1px solid var(--rule);
}

.arc-chain__step::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 3.2rem;
  height: 1px;
  content: "";
  background: var(--paper-muted);
}

.arc-chain__step--positive::before {
  background: var(--teal);
}

.arc-chain__step--negative::before {
  background: var(--coral);
}

.arc-chain__step--adaptation::before,
.arc-chain__step--transfer::before,
.arc-chain__step--principle::before {
  background: var(--brass);
}

.arc-chain__number {
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.58rem;
}

.arc-chain__step p {
  margin: 0;
  color: var(--paper-soft);
}

.arc-chain__step .detail-section-label {
  margin-bottom: 0.5rem;
  color: var(--paper-muted);
}

.detail-effect-list {
  padding: 0;
  margin: 0;
  list-style: none;
}

.detail-effect-list li {
  color: var(--paper-soft);
}

.detail-effect-list strong {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.55rem;
}

.detail-transfer {
  margin-top: 3rem;
  padding: 2rem;
  border: 1px solid var(--teal);
  background: rgba(98, 158, 150, 0.06);
}

.detail-transfer h3 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.7rem, 3vw, 2.8rem);
  font-weight: 400;
}

.detail-transfer > p:not(.detail-section-label) {
  color: var(--paper-muted);
}

.detail-transfer .detail-boundary {
  color: var(--coral);
}

.evidence-drawer {
  margin-top: 3rem;
  border-block: 1px solid var(--rule-strong);
}

.evidence-drawer summary {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 0;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.64rem;
  list-style: none;
  text-transform: uppercase;
}

.evidence-drawer summary::-webkit-details-marker {
  display: none;
}

.evidence-drawer summary::after {
  content: "+";
  color: var(--brass);
}

.evidence-drawer[open] summary::after {
  content: "−";
}

.evidence-drawer summary strong {
  margin-left: auto;
  color: var(--teal);
  font-weight: 500;
}

.evidence-drawer__body {
  padding: 0 0 2rem;
}

.evidence-list {
  display: grid;
  gap: 0.5rem;
}

.evidence-item {
  display: grid;
  grid-template-columns: 8rem 1fr minmax(10rem, auto);
  gap: 1rem;
  align-items: center;
  padding: 0.8rem;
  border: 1px solid var(--rule);
}

.evidence-item span {
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.5rem;
  text-transform: uppercase;
}

.evidence-item strong {
  font-size: 0.7rem;
  font-weight: 500;
}

.evidence-item code {
  color: var(--brass-light);
  font-family: var(--mono);
  font-size: 0.58rem;
  text-align: right;
}

.uncertainty-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1rem;
}

.uncertainty-grid > div {
  padding: 1rem;
  border-left: 1px solid var(--coral);
  background: rgba(220, 118, 95, 0.045);
}

.uncertainty-grid h4 {
  margin: 0;
  color: var(--coral);
  font-family: var(--mono);
  font-size: 0.58rem;
  text-transform: uppercase;
}

.uncertainty-grid ul {
  padding-left: 1rem;
  margin: 0.7rem 0 0;
  color: var(--paper-muted);
  font-size: 0.7rem;
}

.privacy-note {
  margin: 1rem 0 0;
  color: var(--paper-muted);
  font-size: 0.66rem;
}

.privacy-note strong {
  color: var(--teal);
}

.detail-paths {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
  margin-top: 2rem;
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.55rem;
  text-transform: uppercase;
}

.dialog-is-open {
  overflow: hidden;
}

.noscript-panel {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  z-index: 100;
  padding: 1rem;
  border: 1px solid var(--coral);
  color: var(--paper);
  background: var(--ink);
}

@keyframes drawer-in {
  from {
    opacity: 0.2;
    transform: translateX(4rem);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes archive-in {
  from {
    opacity: 0;
    transform: translateY(1rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes loading-line {
  to {
    background-position: -200% 0;
  }
}

.insights-chapter-nav {
  position: sticky;
  top: var(--header-height);
  z-index: 12;
  display: flex;
  gap: 0.35rem;
  margin-top: 1.5rem;
  padding: 0.7rem;
  border: 1px solid var(--rule);
  background: rgba(13, 15, 15, 0.94);
  backdrop-filter: blur(14px);
  overflow-x: auto;
  scrollbar-width: thin;
}

.insights-chapter-nav a {
  flex: 0 0 auto;
  padding: 0.45rem 0.62rem;
  border: 1px solid transparent;
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.54rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
}

.insights-chapter-nav a:hover,
.insights-chapter-nav a:focus-visible {
  border-color: var(--brass);
  color: var(--paper);
}

.hai-retrospective {
  margin-top: clamp(7rem, 13vw, 13rem);
  scroll-margin-top: calc(var(--header-height) + 4.5rem);
}

.hai-retrospective__heading {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(18rem, 0.6fr);
  gap: clamp(2rem, 7vw, 7rem);
  align-items: end;
}

.hai-retrospective__heading > p {
  max-width: 31rem;
  margin: 0 0 0.8rem;
  color: var(--paper-muted);
}

.hai-owner-thesis {
  display: grid;
  grid-template-columns: 9rem minmax(0, 1fr) minmax(16rem, 0.42fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: start;
  padding: clamp(2rem, 5vw, 4.5rem) 0;
  border-bottom: 1px solid var(--rule-strong);
}

.hai-owner-thesis p,
.hai-owner-thesis blockquote,
.hai-owner-thesis small {
  margin: 0;
}

.hai-owner-thesis__label {
  color: var(--teal);
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.hai-owner-thesis__question {
  grid-column: 2 / -1;
  max-width: 68rem;
  padding: 0 0 clamp(1.5rem, 3vw, 2.8rem);
  border-bottom: 1px solid var(--rule);
  color: var(--paper);
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 4.2rem);
  font-weight: 400;
  line-height: 0.98;
}

.hai-owner-thesis__statement {
  grid-column: 2;
  max-width: 45rem;
  font-family: var(--display);
  font-size: clamp(1.35rem, 2.4vw, 2.4rem);
  line-height: 1.08;
}

.hai-owner-thesis small {
  padding-left: 1.2rem;
  border-left: 1px solid var(--coral);
  color: var(--paper-muted);
  font-size: 0.66rem;
}

.hai-evidence-legend {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--rule-strong);
}

.hai-evidence-legend > div {
  min-width: 0;
  padding: 1.2rem;
  border-right: 1px solid var(--rule);
}

.hai-evidence-legend > div:last-child {
  border-right: 0;
}

.hai-evidence-legend strong,
.hai-evidence-legend span {
  display: block;
  font-family: var(--mono);
  font-size: 0.54rem;
  text-transform: uppercase;
}

.hai-evidence-legend strong {
  color: var(--brass);
}

.hai-evidence-legend span {
  margin-top: 0.3rem;
  color: var(--paper-soft);
}

.hai-evidence-legend p {
  margin: 0.7rem 0 0;
  color: var(--paper-muted);
  font-size: 0.64rem;
}

.hai-month-browser {
  margin-top: clamp(3rem, 6vw, 6rem);
}

.hai-month-rail {
  display: grid;
  grid-template-columns: repeat(7, minmax(7rem, 1fr));
  gap: 1px;
  border: 1px solid var(--rule);
  background: var(--rule);
}

.hai-month-tab {
  min-width: 0;
  min-height: 9.5rem;
  padding: 1rem;
  border: 0;
  color: var(--paper-muted);
  background: var(--ink-soft);
  cursor: pointer;
  text-align: left;
  transition: color 150ms ease, background 150ms ease, opacity 150ms ease;
}

.hai-month-tab > span,
.hai-month-tab > strong,
.hai-month-tab > small {
  display: block;
}

.hai-month-tab > span {
  color: var(--paper);
  font-family: var(--display);
  font-size: 1.7rem;
}

.hai-month-tab > strong {
  margin-top: 1.15rem;
  color: var(--brass);
  font-family: var(--mono);
  font-size: 0.51rem;
  font-weight: 500;
  overflow-wrap: anywhere;
}

.hai-month-tab > small {
  margin-top: 0.45rem;
  font-size: 0.58rem;
}

.hai-month-tab:hover,
.hai-month-tab:focus-visible,
.hai-month-tab.is-active {
  color: var(--paper-soft);
  background: var(--ink-raised);
}

.hai-month-tab.is-active {
  box-shadow: inset 0 -3px var(--teal);
}

.hai-month-tab.is-filter-dimmed {
  opacity: 0.4;
}

.hai-month-detail {
  min-width: 0;
  padding: clamp(1.5rem, 5vw, 4.5rem);
  border: 1px solid var(--rule-strong);
  border-top: 0;
  background:
    linear-gradient(135deg, rgba(98, 158, 150, 0.045), transparent 42%),
    var(--ink-soft);
  outline: 0;
}

.hai-month-detail:focus-visible {
  box-shadow: inset 0 0 0 2px var(--brass);
}

.hai-month-detail__header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: start;
}

.hai-month-detail__header p {
  margin: 0;
  color: var(--teal);
  font-family: var(--mono);
  font-size: 0.57rem;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.hai-month-detail h4 {
  max-width: 18ch;
  margin: 0.8rem 0 0;
  font-family: var(--display);
  font-size: clamp(2.5rem, 5vw, 5.4rem);
  font-weight: 400;
  line-height: 0.94;
  letter-spacing: -0.045em;
}

.hai-verdict {
  min-width: 10rem;
  padding: 0.85rem;
  border-top: 2px solid var(--brass);
  text-align: right;
}

.hai-verdict span,
.hai-verdict strong,
.hai-verdict small {
  display: block;
  font-family: var(--mono);
}

.hai-verdict span,
.hai-verdict small {
  color: var(--paper-muted);
  font-size: 0.5rem;
  text-transform: uppercase;
}

.hai-verdict strong {
  margin-top: 0.45rem;
  color: var(--brass);
  font-size: 0.78rem;
}

.hai-verdict--allow {
  border-color: var(--teal);
}

.hai-verdict--allow strong {
  color: var(--teal);
}

.hai-verdict--block {
  border-color: var(--coral);
}

.hai-verdict--block strong {
  color: var(--coral);
}

.hai-verdict--no-evidence {
  border-color: var(--slate);
}

.hai-verdict--no-evidence strong {
  color: var(--paper-muted);
}

.hai-filter-note {
  margin: 2rem 0 0;
  padding: 0.8rem;
  border-left: 2px solid var(--slate);
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.56rem;
  text-transform: uppercase;
}

.hai-month-detail__thesis {
  max-width: 54rem;
  margin: clamp(2rem, 5vw, 4rem) 0;
  color: var(--paper-soft);
  font-size: clamp(1rem, 1.55vw, 1.28rem);
}

.hai-owner-chain {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--rule);
}

.hai-field {
  min-width: 0;
  padding: 1.4rem;
  background: var(--ink);
}

.hai-field span,
.hai-effect span,
.hai-trace-grid span,
.hai-lens__label {
  color: var(--brass);
  font-family: var(--mono);
  font-size: 0.53rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hai-field p,
.hai-effect p,
.hai-trace-grid p {
  margin: 0.75rem 0 0;
  color: var(--paper-muted);
  font-size: 0.72rem;
}

.hai-effect-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin-top: 1px;
  background: var(--rule);
}

.hai-effect {
  min-width: 0;
  padding: 1.5rem;
  background: var(--ink-raised);
}

.hai-effect--positive span {
  color: var(--teal);
}

.hai-effect--negative span {
  color: var(--coral);
}

.hai-effect small {
  display: block;
  margin-top: 1rem;
  color: var(--paper-muted);
  font-size: 0.6rem;
}

.hai-traces,
.hai-month-evidence {
  margin-top: 1px;
  border: 1px solid var(--rule);
  background: rgba(13, 15, 15, 0.72);
}

.hai-traces summary,
.hai-month-evidence summary {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.4rem;
  color: var(--paper-muted);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.56rem;
  list-style: none;
  text-transform: uppercase;
}

.hai-traces summary::-webkit-details-marker,
.hai-month-evidence summary::-webkit-details-marker {
  display: none;
}

.hai-traces summary::after,
.hai-month-evidence summary::after {
  content: "+";
  color: var(--teal);
}

.hai-traces[open] summary::after,
.hai-month-evidence[open] summary::after {
  content: "−";
}

.hai-traces summary strong,
.hai-month-evidence summary strong {
  margin-left: auto;
  color: var(--paper-soft);
  font-weight: 500;
}

.hai-trace-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  border-top: 1px solid var(--rule);
  background: var(--rule);
}

.hai-trace-grid > div {
  min-width: 0;
  padding: 1.4rem;
  background: var(--ink-soft);
}

.hai-trace-grid > div:last-child span {
  color: var(--teal);
}

.hai-lens {
  margin-top: 2rem;
  padding: 1.5rem;
  border: 1px solid var(--brass);
  background: linear-gradient(115deg, rgba(201, 155, 85, 0.08), transparent 58%);
}

.hai-lens__label {
  margin: 0 0 1rem;
}

.hai-lens__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rule);
}

.hai-rule-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 1rem;
}

.hai-rule-pills a {
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--rule);
  color: var(--brass-light);
  font-family: var(--mono);
  font-size: 0.52rem;
  text-decoration: none;
}

.hai-month-evidence > div {
  padding: 1.3rem;
  border-top: 1px solid var(--rule);
}

.hai-month-evidence p,
.hai-month-evidence small,
.hai-evidence-line p,
.hai-evidence-line small {
  overflow-wrap: anywhere;
}

.hai-month-evidence p {
  margin: 0;
  color: var(--paper-soft);
  font-family: var(--mono);
  font-size: 0.58rem;
}

.hai-month-evidence small {
  display: block;
  margin-top: 0.8rem;
  color: var(--coral);
}

.subsection-heading {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  align-items: end;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--rule-strong);
}

.subsection-heading h4 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2.2rem, 4vw, 4.2rem);
  font-weight: 400;
  line-height: 1;
}

.subsection-heading > p {
  max-width: 28rem;
  margin: 0;
  color: var(--paper-muted);
  font-size: 0.7rem;
}

.hai-zooms,
.hai-rulebook,
.hai-synthesis {
  margin-top: clamp(5rem, 10vw, 10rem);
  scroll-margin-top: calc(var(--header-height) + 4.5rem);
}

.hai-zoom-list {
  border-bottom: 1px solid var(--rule-strong);
}

.hai-zoom {
  border-top: 1px solid var(--rule);
  opacity: 0.78;
}

.hai-zoom.is-related {
  opacity: 1;
  box-shadow: inset 3px 0 var(--teal);
}

.hai-zoom summary {
  display: grid;
  grid-template-columns: 13rem minmax(0, 1fr) auto;
  gap: 1.5rem;
  align-items: center;
  padding: 1.5rem;
  cursor: pointer;
  list-style: none;
}

.hai-zoom summary::-webkit-details-marker,
.hai-rule summary::-webkit-details-marker {
  display: none;
}

.hai-zoom summary span,
.hai-zoom summary small {
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.55rem;
  text-transform: uppercase;
}

.hai-zoom summary strong {
  font-family: var(--display);
  font-size: clamp(1.4rem, 2.5vw, 2.35rem);
  font-weight: 400;
}

.hai-zoom__body {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  border-top: 1px solid var(--rule);
  background: var(--rule);
}

.hai-evidence-line {
  padding: 1.3rem;
  border-top: 1px solid var(--rule);
}

.hai-evidence-line span {
  color: var(--teal);
  font-family: var(--mono);
  font-size: 0.54rem;
}

.hai-evidence-line p,
.hai-evidence-line small {
  color: var(--paper-muted);
  font-size: 0.62rem;
}

.hai-zoom > .support-list {
  padding: 0 1.3rem 1.3rem;
  margin-top: 0;
}

.hai-rule-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  margin-top: 1px;
  background: var(--rule);
}

.hai-rule {
  min-width: 0;
  background: var(--ink-soft);
}

.hai-rule.is-active {
  box-shadow: inset 3px 0 var(--brass);
}

.hai-rule summary {
  display: grid;
  grid-template-columns: 4.7rem minmax(0, 1fr);
  gap: 0.8rem;
  padding: 1.1rem;
  cursor: pointer;
  list-style: none;
}

.hai-rule summary span {
  color: var(--brass);
  font-family: var(--mono);
  font-size: 0.53rem;
}

.hai-rule summary strong {
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 400;
}

.hai-rule > p,
.hai-rule > small {
  display: block;
  margin: 0;
  padding: 0 1.1rem 1.1rem 6.6rem;
  color: var(--paper-muted);
  font-size: 0.68rem;
  overflow-wrap: anywhere;
}

.hai-rule > small {
  color: var(--teal);
  font-family: var(--mono);
  font-size: 0.5rem;
}

.hai-synthesis-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 1px;
  background: var(--rule);
}

.hai-synthesis-card {
  min-width: 0;
  min-height: 15rem;
  padding: 1.5rem;
  background: var(--ink-soft);
}

.hai-synthesis-card--dimension {
  background: var(--ink-raised);
}

.hai-synthesis-card > span {
  color: var(--teal);
  font-family: var(--mono);
  font-size: 0.54rem;
}

.hai-synthesis-card h5 {
  margin: 3rem 0 0;
  font-family: var(--display);
  font-size: 1.65rem;
  font-weight: 400;
}

.hai-synthesis-card p {
  color: var(--paper-muted);
  font-size: 0.68rem;
}

.hai-core-statement {
  margin: clamp(2rem, 5vw, 5rem) 0 0;
  padding: clamp(2rem, 5vw, 4rem);
  border: 1px solid var(--teal);
  color: var(--paper-soft);
  font-family: var(--display);
  font-size: clamp(1.8rem, 3.5vw, 3.6rem);
  line-height: 1.08;
}

[data-app-state="ready"] .archive-reveal,
[data-app-state="ready"] .metric,
[data-app-state="ready"] .arc-card {
  animation: archive-in 520ms both;
}

[data-app-state="ready"] .hero__instrument {
  animation-delay: 80ms;
}

[data-app-state="ready"] .metric {
  animation-delay: calc(var(--metric-order) * 65ms);
}

[data-app-state="ready"] .arc-card {
  animation-delay: min(calc(var(--arc-order) * 42ms), 300ms);
}

@media (max-width: 72rem) {
  .hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(18rem, 0.72fr);
  }

  .context-panel {
    grid-template-columns: 0.78fr 1.22fr;
  }

  .transfer-row {
    grid-template-columns: 6rem minmax(15rem, 0.8fr) minmax(15rem, 1.2fr);
  }

  .transfer-open {
    grid-column: 2 / -1;
    justify-self: start;
  }
}

@media (max-width: 58rem) {
  :root {
    --header-height: 4rem;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero::before {
    display: none;
  }

  .hero__copy {
    min-height: 38rem;
  }

  .hero__instrument {
    min-height: 24rem;
    border-top: 1px solid var(--rule);
    border-left: 0;
  }

  .controls {
    position: relative;
    top: auto;
  }

  .secondary-filters {
    grid-template-columns: 1fr 1fr;
  }

  .reset-button {
    grid-column: 2;
  }

  .context-panel {
    grid-template-columns: 1fr;
  }

  .context-panel__intro {
    min-height: 22rem;
    border-right: 0;
    border-bottom: 1px solid var(--rule);
  }

  .story-layout {
    grid-template-columns: 1fr;
  }

  .lane-legend {
    position: static;
  }

  .lane-legend ul {
    display: flex;
    flex-wrap: wrap;
  }

  .depth-dossier__heading {
    grid-template-columns: 1fr;
  }

  .depth-corpus {
    grid-template-columns: 1fr 1fr;
  }

  .depth-corpus p:nth-child(2) {
    border-right: 0;
  }

  .depth-corpus p:nth-child(-n + 2) {
    border-bottom: 1px solid var(--rule);
  }

  .depth-thesis {
    grid-template-columns: 6rem minmax(0, 1fr);
  }

  .depth-causal-grid {
    grid-template-columns: 1fr;
  }

  .depth-facet {
    min-height: 0;
  }

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

  .hai-retrospective__heading,
  .hai-owner-thesis {
    grid-template-columns: 1fr;
  }

  .hai-owner-thesis__question,
  .hai-owner-thesis__statement {
    grid-column: auto;
  }

  .hai-owner-thesis small {
    padding: 1rem 0 0;
    border-top: 1px solid var(--coral);
    border-left: 0;
  }

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

  .hai-evidence-legend > div:nth-child(2) {
    border-right: 0;
  }

  .hai-evidence-legend > div:nth-child(-n + 2) {
    border-bottom: 1px solid var(--rule);
  }

  .hai-month-rail {
    grid-template-columns: repeat(7, 9rem);
    overflow-x: auto;
    scroll-snap-type: x proximity;
  }

  .hai-month-tab {
    scroll-snap-align: start;
  }

  .hai-month-detail__header,
  .subsection-heading {
    grid-template-columns: 1fr;
  }

  .hai-lens__grid,
  .hai-zoom__body {
    grid-template-columns: 1fr;
  }

  .hai-zoom summary {
    grid-template-columns: 10rem minmax(0, 1fr);
  }

  .hai-zoom summary small {
    grid-column: 2;
  }

  .hai-synthesis-grid {
    grid-template-columns: 1fr 1fr;
  }

  .insight-card,
  .insight-card:nth-child(3n),
  .insight-card:nth-child(3n + 1):last-child {
    grid-column: span 12;
    min-height: 18rem;
  }

  .transfer-row {
    grid-template-columns: 5rem 1fr;
  }

  .transfer-row__route,
  .transfer-row__copy,
  .transfer-open {
    grid-column: 2;
  }

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

@media (max-width: 40rem) {
  :root {
    --page-gutter: 1rem;
  }

  body {
    background-size: auto, auto, 3rem 3rem, 3rem 3rem, auto;
  }

  .site-header {
    min-height: var(--header-height);
  }

  .wordmark__name {
    display: none;
  }

  .archive-status {
    font-size: 0.54rem;
  }

  .hero__copy {
    min-height: 31rem;
    padding-top: 4.5rem;
  }

  .hero h1 {
    font-size: clamp(3.3rem, 17vw, 5.2rem);
  }

  .hero__lede {
    padding-left: 0;
    margin-top: 2rem;
  }

  .hero__instrument {
    min-height: 20rem;
    padding-block: 2.5rem;
  }

  .hero-weave {
    height: 7rem;
    margin-top: 2rem;
  }

  .snapshot-strip {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }

  .snapshot-strip span:last-child {
    text-align: left;
  }

  .controls__heading,
  .density-heading,
  .view-heading,
  .section-rule-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.75rem;
  }

  .union-note,
  .density-heading > p {
    text-align: left;
  }

  .harness-filter {
    flex-wrap: wrap;
    margin-inline: 0;
    padding-inline: 0;
    padding-bottom: 0;
    overflow-x: visible;
  }

  .filter-chip {
    flex: 1 1 max-content;
    justify-content: center;
  }

  .secondary-filters {
    grid-template-columns: 1fr;
  }

  .reset-button {
    grid-column: auto;
  }

  .filter-readout {
    flex-direction: column;
    gap: 0.2rem;
  }

  .context-panel h2 {
    font-size: 3rem;
  }

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

  .metric {
    min-height: 12rem;
    padding: 1rem;
  }

  .metric__value {
    font-size: 2.5rem;
  }

  .metric__caveat {
    font-size: 0.6rem;
  }

  .density-section {
    padding-block: 4rem;
  }

  .density-chart {
    height: 13rem;
    gap: 0.25rem;
  }

  .density-column__value {
    font-size: 0.48rem;
  }

  .harness-totals {
    grid-template-columns: 1fr;
  }

  .harness-total {
    border-right: 0;
    border-bottom: 1px solid var(--rule);
  }

  .view-section {
    padding-block: 5.5rem;
  }

  .view-heading h2 {
    font-size: 3.35rem;
  }

  .prologue-card {
    grid-template-columns: 2.8rem 1fr;
  }

  .prologue-card__marker {
    width: 2.5rem;
    height: 2.5rem;
    font-size: 1.2rem;
  }

  .prologue-card__constraint {
    grid-column: 2;
    padding-left: 0;
    border-left: 0;
  }

  .lane-map {
    margin-inline: -1rem;
    padding-inline: 1rem;
  }

  .thread-row {
    grid-template-columns: 4.4rem minmax(0, 1fr);
    gap: 0.5rem;
  }

  .thread-row__label {
    font-size: 0.46rem;
  }

  .arc-card {
    grid-template-columns: 2.4rem minmax(0, 1fr);
  }

  .arc-card__body {
    padding-left: 1rem;
  }

  .arc-card h3 {
    font-size: 2.45rem;
  }

  .arc-card__effects {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }

  .arc-card__footer {
    grid-template-columns: 1fr;
  }

  .transfer-badge {
    justify-self: start;
  }

  .insight-card {
    padding: 1.5rem;
  }

  .insights-chapter-nav {
    top: var(--header-height);
    margin-inline: -1rem;
    padding-inline: 1rem;
    border-inline: 0;
  }

  .hai-retrospective__heading {
    display: flex;
    align-items: flex-start;
    flex-direction: column;
  }

  .hai-evidence-legend,
  .hai-owner-chain,
  .hai-effect-pair,
  .hai-trace-grid,
  .hai-rule-list,
  .hai-synthesis-grid {
    grid-template-columns: 1fr;
  }

  .hai-evidence-legend > div,
  .hai-evidence-legend > div:nth-child(2) {
    border-right: 0;
    border-bottom: 1px solid var(--rule);
  }

  .hai-evidence-legend > div:last-child {
    border-bottom: 0;
  }

  .hai-month-detail {
    padding: 1.2rem;
  }

  .hai-month-detail__header {
    grid-template-columns: 1fr;
  }

  .hai-verdict {
    min-width: 0;
    text-align: left;
  }

  .hai-month-detail h4 {
    font-size: 3rem;
  }

  .hai-traces summary,
  .hai-month-evidence summary {
    display: grid;
  }

  .hai-traces summary strong,
  .hai-month-evidence summary strong {
    margin: 0.35rem 0 0;
  }

  .hai-zoom summary {
    grid-template-columns: 1fr;
    gap: 0.55rem;
    padding: 1rem;
  }

  .hai-zoom summary small {
    grid-column: 1;
  }

  .hai-rule summary {
    grid-template-columns: 4.2rem minmax(0, 1fr);
  }

  .hai-rule > p,
  .hai-rule > small {
    padding-left: 1.1rem;
  }

  .hai-synthesis-card {
    min-height: 0;
  }

  .hai-synthesis-card h5 {
    margin-top: 1.5rem;
  }

  .depth-corpus {
    grid-template-columns: 1fr;
  }

  .depth-corpus p,
  .depth-corpus p:nth-child(2) {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--rule);
  }

  .depth-thesis {
    display: block;
    padding-block: 4.5rem;
  }

  .depth-thesis > header {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    margin-bottom: 1.5rem;
  }

  .depth-thesis h4 {
    font-size: 3rem;
  }

  .depth-countercheck__grid {
    grid-template-columns: 1fr;
  }

  .prompt-phase {
    grid-template-columns: 2.5rem minmax(0, 1fr);
    gap: 0.7rem;
  }

  .prompt-phase__body {
    grid-template-columns: 1fr;
  }

  .prompt-phase h4,
  .prompt-phase__time,
  .prompt-phase__evidence {
    grid-column: 1;
  }

  .prompt-phase__evidence {
    grid-template-columns: 1fr;
  }

  .prompt-phase__evidence .support-list {
    justify-content: flex-start;
  }

  .goal-milestone {
    grid-template-columns: 1fr;
  }

  .goal-milestone__mark {
    font-size: 3.5rem;
  }

  .governance-columns > section {
    padding: 1.5rem;
  }

  .governance-stage dl {
    grid-template-columns: 1fr;
  }

  .insight-card h3 {
    margin-top: 3rem;
    font-size: 2.5rem;
  }

  .transfer-row {
    grid-template-columns: 1fr;
    gap: 0.9rem;
  }

  .transfer-row__route,
  .transfer-row__copy,
  .transfer-open {
    grid-column: 1;
  }

  .transfer-row__route {
    min-width: 0;
  }

  .principles-list li {
    grid-template-columns: 2rem 1fr auto;
    gap: 0.7rem;
  }

  .methodology {
    padding: 1.5rem;
  }

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

  .evidence-key div,
  .evidence-key div:nth-child(even),
  .evidence-key div:nth-child(n + 3) {
    border-right: 0;
    border-bottom: 1px solid var(--rule);
  }

  .evidence-key div:last-child {
    border-bottom: 0;
  }

  .site-footer {
    flex-direction: column;
    gap: 0.5rem;
  }

  .arc-dialog {
    width: 100%;
    border-left: 0;
  }

  .arc-dialog__rail {
    display: none;
  }

  .arc-dialog__inner {
    padding: 1rem;
  }

  .arc-dialog__header {
    position: sticky;
    top: 0;
    z-index: 3;
    margin-inline: -1rem;
    padding: 0.9rem 1rem 1rem;
    background: rgba(13, 15, 15, 0.96);
    backdrop-filter: blur(12px);
  }

  .arc-dialog h2 {
    font-size: 2.2rem;
  }

  .dialog-close span:last-child {
    display: none;
  }

  .detail-claim {
    margin-top: 2rem;
  }

  .arc-chain__step {
    grid-template-columns: 2rem minmax(0, 1fr);
    gap: 0.7rem;
  }

  .evidence-item {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .evidence-item code {
    text-align: left;
    overflow-wrap: anywhere;
  }

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

  .detail-paths {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation: none !important;
    transition: none !important;
  }
}

@media (prefers-contrast: more) {
  :root {
    --rule: rgba(232, 224, 209, 0.34);
    --rule-strong: rgba(232, 224, 209, 0.62);
    --paper-muted: #aca69b;
  }
}

@media print {
  :root {
    --ink: #ffffff;
    --ink-soft: #ffffff;
    --ink-raised: #ffffff;
    --paper: #111111;
    --paper-soft: #333333;
    --paper-muted: #555555;
    --rule: rgba(0, 0, 0, 0.2);
    --rule-strong: rgba(0, 0, 0, 0.5);
  }

  body {
    background: #ffffff;
  }

  .site-header,
  .controls,
  .hero__instrument,
  .lane-map,
  .lane-legend,
  .arc-open,
  .transfer-badge,
  .site-footer {
    display: none !important;
  }

  .hero {
    min-height: auto;
  }

  .hero__copy,
  .view-section,
  .density-section {
    padding: 2rem;
  }

  .arc-card,
  .metric,
  .prologue-card {
    break-inside: avoid;
  }
}