:root {
  color-scheme: light;
  --bg: #f4f5f2;
  --surface: #ffffff;
  --surface-strong: #f1f4f1;
  --surface-inset: #f7f8f6;
  --ink: #17201d;
  --muted: #59645f;
  --line: #d9dfda;
  --line-strong: #c8d0ca;
  --green: #16704d;
  --blue: #17669d;
  --amber: #a86216;
  --coral: #ad483a;
  --violet: #694c99;
  --shadow: 0 1px 2px rgba(19, 30, 24, 0.04), 0 12px 28px rgba(19, 30, 24, 0.05);
  --shadow-lift: 0 1px 2px rgba(19, 30, 24, 0.05), 0 20px 48px rgba(19, 30, 24, 0.07);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.58;
  -webkit-font-smoothing: antialiased;
}

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

button {
  cursor: pointer;
}

.shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 292px minmax(0, 1fr);
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 25px 20px 22px;
  border-right: 1px solid var(--line);
  background: #ffffff;
  overflow-y: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--green);
  color: #ffffff;
  font-weight: 800;
  letter-spacing: 0;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 17px;
  line-height: 1.2;
}

.brand small {
  color: var(--muted);
  margin-top: 2px;
  font-size: 12px;
}

.search {
  display: grid;
  gap: 8px;
  margin: 28px 0 18px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.search input {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 11px 12px;
  background: var(--surface-inset);
  color: var(--ink);
  outline: none;
  transition: border-color 140ms ease, background 140ms ease, box-shadow 140ms ease;
}

.search input:focus {
  border-color: var(--green);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(22, 112, 77, 0.12);
}

.chapter-nav {
  display: grid;
  gap: 16px;
}

.quick-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 0 0 18px;
}

.quick-links a {
  display: grid;
  place-items: center;
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-inset);
  color: var(--ink);
  font-size: 13px;
  font-weight: 850;
  text-decoration: none;
}

.quick-links a:hover,
.quick-links a:focus {
  border-color: var(--green);
  background: #ffffff;
}

.chapter-nav a {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 8px;
  align-items: start;
  padding: 7px 8px;
  border-radius: 8px;
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  line-height: 1.4;
}

.nav-group {
  display: grid;
  gap: 3px;
}

.nav-group p {
  margin: 0 8px 5px;
  color: #7a837f;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
}

.chapter-nav a:hover,
.chapter-nav a:focus {
  background: var(--surface-strong);
  color: var(--ink);
}

.chapter-index {
  color: var(--green);
  font-variant-numeric: tabular-nums;
  font-weight: 800;
}

.sidebar-note {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.sidebar-note strong {
  display: block;
  color: var(--ink);
  margin-bottom: 6px;
}

.sidebar-note p {
  margin: 0;
}

.book {
  min-width: 0;
  padding-bottom: 44px;
}

.hero {
  min-height: auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 390px);
  align-items: center;
  gap: 44px;
  padding: 46px clamp(28px, 5vw, 72px) 38px;
  background: #ffffff;
  border-bottom: 1px solid var(--line);
}

.hero-copy {
  max-width: 840px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--green);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.08;
  letter-spacing: 0;
}

h1 {
  max-width: 720px;
  font-size: 48px;
}

.hero-copy p:not(.eyebrow) {
  max-width: 690px;
  margin: 17px 0 0;
  color: var(--muted);
  font-size: 16px;
}

.reading-path {
  display: flex;
  gap: 0;
  max-width: 690px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.reading-path li {
  position: relative;
  flex: 1;
  display: grid;
  gap: 3px;
  padding-left: 23px;
}

.reading-path li:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 12px;
  right: 13px;
  width: 42px;
  height: 1px;
  background: var(--line-strong);
}

.reading-path span {
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
}

.reading-path strong {
  font-size: 15px;
}

.reading-path small {
  color: var(--muted);
  font-size: 12px;
}

.hero-panel {
  display: grid;
  gap: 14px;
  padding: 11px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-inset);
}

.hero-panel div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  min-height: 58px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.hero-panel div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.metric-value {
  font-size: 27px;
  font-weight: 850;
}

.metric-label {
  color: var(--muted);
  font-size: 13px;
}

.controls {
  position: sticky;
  top: 0;
  z-index: 4;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 13px clamp(28px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.segmented {
  display: flex;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-inset);
}

.segment,
.utility-button {
  min-height: 38px;
  border: 1px solid transparent;
  border-radius: 7px;
  padding: 8px 13px;
  background: transparent;
  color: var(--muted);
  font-weight: 800;
}

.segment.is-active,
.utility-button {
  background: var(--green);
  color: #ffffff;
}

.utility-button:hover,
.segment:hover {
  border-color: var(--green);
}

.map-band,
.turn-band,
.pipeline-band,
.capability-band,
.engine-band,
.payload-band,
.tool-schema-band,
.memory-band,
.recall-band,
.telegram-band,
.debug-band,
.evidence-band,
.matrix-band,
.practice-band,
.roadmap-band,
.contract-band,
.chapter-list {
  padding: 42px clamp(28px, 5vw, 72px);
}

.map-band,
.turn-band,
.pipeline-band,
.capability-band,
.engine-band,
.payload-band,
.tool-schema-band,
.memory-band,
.recall-band,
.telegram-band,
.debug-band,
.evidence-band,
.matrix-band,
.practice-band,
.roadmap-band,
.contract-band {
  scroll-margin-top: 68px;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 24px;
}

.section-heading h2 {
  font-size: 32px;
}

.section-note {
  max-width: 370px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  text-align: right;
}

.atlas-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow-lift);
  overflow-x: auto;
}

.atlas-map {
  display: block;
  min-width: 980px;
  width: 100%;
  height: auto;
}

.atlas-node rect {
  fill: #ffffff;
  stroke: var(--line);
  stroke-width: 2;
  filter: drop-shadow(0 8px 12px rgba(22, 33, 27, 0.06));
}

.atlas-node.entry rect {
  stroke: var(--green);
}

.atlas-node.gateway rect {
  stroke: var(--blue);
}

.atlas-node.plugin rect {
  stroke: var(--amber);
}

.atlas-node.runtime rect {
  stroke: var(--coral);
}

.atlas-node.store rect {
  stroke: var(--violet);
}

.atlas-node text {
  fill: var(--muted);
  font-size: 18px;
  font-weight: 650;
}

.atlas-node .node-title {
  fill: var(--ink);
  font-size: 22px;
  font-weight: 850;
}

.atlas-link {
  fill: none;
  stroke: #839489;
  stroke-width: 3;
  marker-end: url("#arrowHead");
}

.atlas-link.dashed {
  stroke-dasharray: 9 9;
}

.arrow-head {
  fill: #839489;
}

.atlas-note {
  fill: var(--muted);
  font-size: 16px;
  font-weight: 800;
}

.turn-band,
.pipeline-band,
.capability-band,
.engine-band,
.payload-band,
.tool-schema-band,
.memory-band,
.recall-band,
.telegram-band,
.debug-band,
.evidence-band,
.matrix-band,
.practice-band,
.roadmap-band,
.contract-band {
  padding-top: 12px;
}

.lifecycle-track {
  display: grid;
  grid-template-columns: repeat(5, minmax(140px, 1fr));
  gap: 14px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.lifecycle-track li {
  position: relative;
  min-width: 0;
  min-height: 156px;
  display: grid;
  align-content: start;
  gap: 8px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.lifecycle-track li:not(:last-child)::after {
  content: "";
  position: absolute;
  z-index: 1;
  right: -15px;
  top: 50%;
  width: 15px;
  height: 1px;
  background: var(--line-strong);
}

.lifecycle-track li:not(:last-child)::before {
  content: "";
  position: absolute;
  z-index: 2;
  right: -15px;
  top: calc(50% - 4px);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  border-left: 6px solid var(--line-strong);
}

.lifecycle-track li.is-core {
  border-color: rgba(173, 72, 58, 0.38);
  border-top: 5px solid var(--coral);
  padding-top: 14px;
  background: #fffdfc;
}

.lifecycle-track span,
.recall-request > span,
.recall-sources span,
.debug-branches span {
  color: var(--green);
  font-size: 11px;
  font-weight: 850;
}

.lifecycle-track strong {
  font-size: 16px;
}

.lifecycle-track code {
  color: var(--blue);
  font-size: 12px;
  word-break: break-word;
}

.lifecycle-track small {
  color: var(--muted);
  font-size: 13px;
}

.merge-diagram {
  display: grid;
  grid-template-columns: minmax(245px, 1fr) minmax(205px, 0.7fr) minmax(245px, 0.9fr);
  gap: 16px;
  align-items: center;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-inset);
}

.merge-inputs,
.merge-outputs {
  display: grid;
  gap: 8px;
}

.merge-inputs div,
.merge-outputs div {
  position: relative;
  display: grid;
  gap: 4px;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.merge-inputs div::after {
  content: "";
  position: absolute;
  right: -17px;
  top: 50%;
  width: 16px;
  height: 1px;
  background: var(--line-strong);
}

.merge-outputs div::before {
  content: "";
  position: absolute;
  left: -17px;
  top: 50%;
  width: 16px;
  height: 1px;
  background: var(--line-strong);
}

.merge-inputs code,
.merge-outputs code {
  color: var(--blue);
  font-size: 12px;
  word-break: break-word;
}

.merge-inputs strong,
.merge-outputs strong {
  font-size: 13px;
}

.merge-center {
  display: grid;
  justify-items: center;
  gap: 7px;
  padding: 27px 14px;
  border-radius: 8px;
  background: var(--coral);
  color: #ffffff;
  text-align: center;
}

.merge-center p {
  margin: 0;
  font-size: 10px;
  font-weight: 850;
}

.merge-center strong {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 18px;
}

.merge-center small {
  color: rgba(255, 255, 255, 0.84);
  font-size: 12px;
}

.pipeline-steps {
  display: grid;
  grid-template-columns: repeat(7, minmax(132px, 1fr));
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow);
  list-style: none;
  overflow-x: auto;
}

.pipeline-steps li {
  min-height: 152px;
  display: grid;
  align-content: start;
  gap: 9px;
  padding: 19px 16px 18px;
  border-right: 1px solid var(--line);
}

.pipeline-steps li:last-child {
  border-right: 0;
}

.pipeline-index {
  color: var(--green);
  font-size: 12px;
  font-weight: 850;
  font-variant-numeric: tabular-nums;
  display: flex;
  align-items: center;
  gap: 8px;
}

.pipeline-index::after {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--line-strong);
}

.pipeline-steps strong {
  font-size: 15px;
}

.pipeline-steps small {
  color: var(--muted);
  font-size: 12px;
}

.history-funnel {
  display: grid;
  justify-items: center;
  gap: 8px;
  margin: 20px 0 18px;
}

.history-funnel article {
  display: grid;
  grid-template-columns: minmax(115px, 0.8fr) minmax(135px, 1fr) minmax(160px, 1.3fr);
  gap: 15px;
  align-items: center;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.history-funnel article:not(:last-child) {
  position: relative;
}

.history-funnel article:not(:last-child)::after {
  content: "";
  position: absolute;
  bottom: -9px;
  left: 50%;
  height: 8px;
  width: 1px;
  background: var(--line-strong);
}

.history-funnel .funnel-source {
  width: 100%;
}

.history-funnel .funnel-sanitize {
  width: 88%;
}

.history-funnel .funnel-limit {
  width: 76%;
}

.history-funnel .funnel-compact {
  width: 64%;
  border-style: dashed;
}

.history-funnel .funnel-visible {
  width: 55%;
  border-color: rgba(22, 112, 77, 0.35);
  background: #f7fbf8;
}

.history-funnel span {
  color: var(--green);
  font-size: 11px;
  font-weight: 850;
  text-transform: uppercase;
}

.history-funnel strong {
  font-size: 14px;
}

.history-funnel small {
  color: var(--muted);
  font-size: 12px;
}

code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.94em;
}

.pipeline-detail {
  display: grid;
  grid-template-columns: minmax(290px, 0.92fr) minmax(330px, 1.08fr);
  gap: 18px;
  margin-top: 18px;
}

.evidence-panel,
.trace-panel {
  min-width: 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.evidence-panel {
  border-top: 6px solid var(--blue);
}

.trace-panel {
  border-top: 6px solid var(--coral);
}

.context-rows {
  display: grid;
  gap: 0;
  margin: 0;
}

.context-rows div {
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}

.context-rows div:last-child {
  border-bottom: 0;
}

.context-rows dt {
  margin-bottom: 4px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 850;
}

.context-rows dd {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  word-break: break-word;
}

.diagnostic-steps {
  display: grid;
  gap: 10px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.diagnostic-steps li {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 12px;
  color: var(--muted);
  font-size: 13px;
}

.diagnostic-steps strong {
  color: var(--ink);
}

.trace-panel pre {
  margin: 0;
  padding: 13px 14px;
  border-radius: 8px;
  background: #18221e;
  color: #e7ede9;
  color: var(--ink);
  font-size: 12px;
  line-height: 1.7;
  overflow-x: auto;
}

.capability-equation {
  display: grid;
  grid-template-columns: minmax(200px, 1fr) 46px minmax(200px, 1fr) 46px minmax(205px, 0.86fr);
  align-items: stretch;
  gap: 12px;
  margin-bottom: 18px;
}

.capability-source,
.capability-result {
  display: grid;
  align-content: start;
  gap: 9px;
  min-height: 180px;
  padding: 21px;
  border: 1px solid var(--line);
  border-top: 5px solid var(--blue);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.capability-source.tools {
  border-top-color: var(--violet);
}

.capability-result {
  border-top-color: var(--green);
  background: #f7fbf8;
}

.capability-source p,
.capability-result p {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  font-weight: 850;
  text-transform: uppercase;
}

.capability-source strong,
.capability-result strong {
  font-size: 22px;
}

.capability-source code {
  color: var(--blue);
  font-size: 12px;
}

.capability-source small,
.capability-result small {
  color: var(--muted);
}

.operator {
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 28px;
  font-weight: 700;
}

.capability-failures {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.capability-failures article {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 7px 10px;
  align-items: center;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.failure-state {
  grid-column: 1 / -1;
  color: var(--coral);
  font-size: 11px;
  font-weight: 850;
}

.capability-failures code {
  grid-column: 1;
  color: var(--blue);
  font-size: 12px;
}

.failure-arrow {
  grid-column: 2;
  grid-row: 2 / 4;
  color: var(--muted);
  font-size: 11px;
  font-weight: 850;
  text-transform: uppercase;
}

.is-missing {
  grid-column: 3;
  grid-row: 2 / 4;
  color: var(--coral);
  font-size: 14px;
}

.capability-failures p {
  grid-column: 1 / -1;
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.failure-proof {
  border-color: rgba(22, 112, 77, 0.28) !important;
}

.failure-proof .failure-state,
.failure-proof .is-missing {
  color: var(--green);
}

.engine-compose {
  display: grid;
  grid-template-columns: minmax(205px, 0.8fr) minmax(295px, 1fr) minmax(210px, 0.8fr);
  gap: 17px;
  align-items: center;
}

.engine-inputs,
.engine-outputs {
  display: grid;
  gap: 9px;
}

.engine-inputs article,
.engine-outputs article {
  position: relative;
  display: grid;
  gap: 5px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.engine-inputs article::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -18px;
  width: 17px;
  height: 1px;
  background: var(--line-strong);
}

.engine-outputs article::before {
  content: "";
  position: absolute;
  top: 50%;
  left: -18px;
  width: 17px;
  height: 1px;
  background: var(--line-strong);
}

.engine-inputs span,
.engine-outputs span {
  color: var(--green);
  font-size: 11px;
  font-weight: 850;
  text-transform: uppercase;
}

.engine-inputs strong,
.engine-outputs strong {
  font-size: 15px;
}

.engine-inputs code {
  color: var(--blue);
  font-size: 12px;
}

.engine-outputs small {
  color: var(--muted);
  font-size: 12px;
}

.engine-core {
  padding: 22px;
  border: 1px solid rgba(105, 76, 153, 0.32);
  border-top: 6px solid var(--violet);
  border-radius: 8px;
  background: #faf8fc;
  box-shadow: var(--shadow);
}

.engine-core p {
  margin: 0 0 9px;
  color: var(--violet);
  font-size: 11px;
  font-weight: 850;
}

.engine-core strong {
  display: block;
  margin-bottom: 7px;
  font-size: 20px;
}

.engine-core > code {
  color: var(--blue);
  font-size: 12px;
}

.engine-core dl {
  display: grid;
  gap: 0;
  margin: 16px 0 0;
}

.engine-core dl div {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 10px;
  padding: 8px 0;
  border-top: 1px solid var(--line);
  font-size: 12px;
}

.engine-core dt {
  color: var(--muted);
  font-weight: 800;
}

.engine-core dd {
  margin: 0;
  color: var(--ink);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

.engine-callouts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.engine-callouts article {
  padding: 16px 17px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-inset);
}

.engine-callouts strong {
  display: block;
  margin-bottom: 6px;
  color: var(--ink);
}

.engine-callouts p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.payload-diagram {
  display: grid;
  grid-template-columns: minmax(190px, 0.74fr) minmax(320px, 1.2fr) minmax(190px, 0.72fr);
  gap: 17px;
  align-items: center;
}

.payload-inputs,
.payload-checks {
  display: grid;
  gap: 9px;
}

.payload-inputs article,
.payload-checks article {
  position: relative;
  display: grid;
  gap: 5px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.payload-inputs article::after {
  content: "";
  position: absolute;
  right: -18px;
  top: 50%;
  width: 17px;
  height: 1px;
  background: var(--line-strong);
}

.payload-checks article::before {
  content: "";
  position: absolute;
  left: -18px;
  top: 50%;
  width: 17px;
  height: 1px;
  background: var(--line-strong);
}

.payload-inputs span,
.payload-checks span {
  color: var(--green);
  font-size: 11px;
  font-weight: 850;
}

.payload-inputs strong {
  font-size: 15px;
}

.payload-inputs code,
.payload-checks code {
  color: var(--blue);
  font-size: 12px;
  word-break: break-word;
}

.wire-envelope {
  overflow: hidden;
  border-radius: 8px;
  background: #18221e;
  color: #e7ede9;
  box-shadow: var(--shadow-lift);
}

.wire-envelope header {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 18px;
  border-bottom: 1px solid rgba(231, 237, 233, 0.16);
  color: #9ccab6;
  font-size: 11px;
  font-weight: 850;
}

.wire-envelope header code {
  color: #b9c7c1;
}

.wire-envelope dl {
  display: grid;
  margin: 0;
  padding: 11px 18px 16px;
}

.wire-envelope dl div {
  display: grid;
  grid-template-columns: 118px minmax(0, 1fr);
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(231, 237, 233, 0.12);
}

.wire-envelope dl div:last-child {
  border-bottom: 0;
}

.wire-envelope dt {
  color: #9ccab6;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 12px;
}

.wire-envelope dd {
  margin: 0;
  color: #e7ede9;
  font-size: 13px;
}

.schema-lanes {
  display: grid;
  grid-template-columns: minmax(255px, 0.78fr) minmax(320px, 1.08fr) minmax(255px, 0.78fr);
  gap: 17px;
  align-items: stretch;
}

.schema-source-card,
.provider-split article,
.schema-debug-routine article,
.schema-wire-samples article {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.schema-source-card {
  padding: 21px;
  border-top: 6px solid var(--violet);
}

.schema-source-card > span,
.provider-split span,
.schema-debug-routine span {
  color: var(--green);
  font-size: 11px;
  font-weight: 850;
  text-transform: uppercase;
}

.schema-source-card h3 {
  margin: 8px 0 15px;
  font-size: 24px;
}

.schema-source-card h3 code {
  color: var(--blue);
}

.schema-source-card dl {
  display: grid;
  gap: 9px;
  margin: 0 0 15px;
}

.schema-source-card dl div {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 10px;
  padding: 10px 11px;
  border-radius: 8px;
  background: var(--surface-inset);
}

.schema-source-card dt {
  color: var(--ink);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 12px;
  font-weight: 850;
}

.schema-source-card dd {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.schema-source-card > code {
  display: block;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--blue);
  font-size: 12px;
  word-break: break-word;
}

.schema-pipeline {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.schema-pipeline li {
  position: relative;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 5px 13px;
  align-content: start;
  min-height: 92px;
  padding: 14px 15px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.schema-pipeline li:not(:last-child)::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 35px;
  height: 9px;
  width: 1px;
  background: var(--line-strong);
}

.schema-pipeline span {
  grid-row: span 2;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: #e9efeb;
  color: var(--green);
  font-size: 12px;
  font-weight: 850;
  font-variant-numeric: tabular-nums;
}

.schema-pipeline strong {
  font-size: 15px;
}

.schema-pipeline small {
  color: var(--muted);
  font-size: 12px;
}

.schema-pipeline code {
  color: var(--blue);
  font-size: 12px;
  word-break: break-word;
}

.provider-split {
  display: grid;
  gap: 12px;
}

.provider-split article {
  display: grid;
  align-content: start;
  gap: 9px;
  padding: 20px;
  border-top: 6px solid var(--blue);
}

.provider-split article:nth-child(2) {
  border-top-color: var(--coral);
}

.provider-split strong {
  font-size: 23px;
}

.provider-split strong code {
  color: var(--ink);
}

.provider-split p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.provider-split > article > code {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--blue);
  font-size: 12px;
  word-break: break-word;
}

.schema-debug-routine {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 13px;
  margin-top: 18px;
}

.schema-debug-routine article {
  display: grid;
  align-content: start;
  gap: 9px;
  min-height: 180px;
  padding: 18px;
  border-top: 5px solid var(--green);
}

.schema-debug-routine article:nth-child(2) {
  border-top-color: var(--amber);
}

.schema-debug-routine article:nth-child(3) {
  border-top-color: var(--blue);
}

.schema-debug-routine article:nth-child(4) {
  border-top-color: var(--violet);
}

.schema-debug-routine strong {
  font-size: 16px;
}

.schema-debug-routine p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.schema-debug-routine code {
  color: var(--blue);
  font-size: 12px;
  word-break: break-word;
}

.schema-wire-samples {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.schema-wire-samples article {
  overflow: hidden;
  background: #18221e;
  color: #e7ede9;
}

.schema-wire-samples .flow-title {
  margin: 0;
  padding: 14px 17px;
  border-bottom: 1px solid rgba(231, 237, 233, 0.14);
  color: #9ccab6;
}

.schema-wire-samples pre {
  margin: 0;
  padding: 17px;
  overflow-x: auto;
}

.schema-wire-samples code {
  color: #e7ede9;
  font-size: 12px;
  line-height: 1.65;
}

.memory-track {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.memory-layer {
  min-width: 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-top: 6px solid var(--green);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.memory-layer:nth-child(2) {
  border-top-color: var(--amber);
}

.memory-layer:nth-child(3) {
  border-top-color: var(--violet);
}

.layer-tag {
  display: block;
  margin-bottom: 9px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

.memory-layer h3 {
  font-size: 23px;
}

.memory-layer p {
  min-height: 78px;
  margin: 12px 0 16px;
  color: var(--muted);
  font-size: 14px;
}

.memory-layer > code {
  display: block;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--blue);
  font-size: 12px;
  word-break: break-word;
}

.recall-graph {
  display: grid;
  grid-template-columns: minmax(240px, 0.75fr) minmax(280px, 1fr) minmax(190px, 0.64fr);
  gap: 17px;
  align-items: stretch;
}

.recall-request {
  display: grid;
  align-content: start;
  gap: 11px;
  padding: 22px;
  border: 1px solid var(--line);
  border-top: 6px solid var(--green);
  border-radius: 8px;
  background: #ffffff;
}

.recall-request strong {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 24px;
}

.recall-request dl {
  display: grid;
  gap: 9px;
  margin: 7px 0 0;
}

.recall-request dl div {
  padding: 10px 11px;
  border-radius: 8px;
  background: var(--surface-inset);
}

.recall-request dt {
  color: var(--muted);
  font-size: 11px;
  font-weight: 850;
}

.recall-request dd {
  margin: 3px 0 0;
  color: var(--ink);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 12px;
}

.recall-route {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.recall-route li {
  position: relative;
  display: grid;
  grid-template-columns: minmax(130px, 0.94fr) minmax(105px, 0.8fr);
  gap: 3px 14px;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.recall-route li:not(:last-child)::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 25px;
  height: 9px;
  width: 1px;
  background: var(--line-strong);
}

.recall-route code {
  grid-row: span 2;
  color: var(--blue);
  font-size: 12px;
  word-break: break-word;
}

.recall-route strong {
  font-size: 13px;
}

.recall-route small {
  color: var(--muted);
  font-size: 12px;
}

.recall-sources {
  display: grid;
  gap: 9px;
}

.recall-sources article {
  display: grid;
  align-content: start;
  gap: 6px;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-inset);
}

.recall-sources strong {
  font-size: 15px;
}

.recall-sources code {
  color: var(--blue);
  font-size: 12px;
}

.recall-sources article:last-child {
  border-color: rgba(105, 76, 153, 0.3);
  background: #faf8fc;
}

.telegram-journey {
  display: grid;
  grid-template-columns: minmax(280px, 0.74fr) minmax(0, 1.26fr);
  gap: 22px;
  align-items: start;
}

.data-packet,
.telegram-flow {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.data-packet {
  position: sticky;
  top: 24px;
  padding: 22px;
  border-top: 6px solid var(--amber);
}

.data-packet dl {
  display: grid;
  gap: 12px;
  margin: 0;
}

.data-packet div {
  padding: 12px;
  border-radius: 8px;
  background: var(--surface-inset);
}

.data-packet dt {
  margin: 0 0 4px;
  color: var(--ink);
  font-family:
    "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 13px;
  font-weight: 850;
}

.data-packet dd {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.telegram-flow {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow: clip;
}

.telegram-flow li {
  min-height: 152px;
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 12px;
  align-content: start;
  padding: 20px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.telegram-flow li:nth-child(2n) {
  border-right: 0;
}

.telegram-flow li::after {
  content: "";
  position: absolute;
  right: 16px;
  bottom: 16px;
  width: 22px;
  height: 10px;
  border-right: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
  transform: skewX(-28deg);
}

.flow-badge {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--ink);
  color: #ffffff;
  font-size: 13px;
  font-weight: 850;
  font-variant-numeric: tabular-nums;
}

.telegram-flow strong {
  display: block;
  min-width: 0;
  color: var(--ink);
  font-size: 16px;
}

.telegram-flow small {
  display: block;
  min-width: 0;
  margin-top: 5px;
  color: var(--muted);
  font-size: 13px;
}

.debug-question {
  position: relative;
  max-width: 700px;
  margin: 0 auto 33px;
  padding: 18px 26px;
  border: 1px solid rgba(173, 72, 58, 0.3);
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
  font-size: 17px;
  font-weight: 700;
  text-align: center;
}

.debug-question::after {
  content: "";
  position: absolute;
  bottom: -26px;
  left: 50%;
  height: 25px;
  width: 1px;
  background: var(--line-strong);
}

.debug-branches {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 13px;
}

.debug-branches::before {
  content: "";
  position: absolute;
  left: 12.5%;
  right: 12.5%;
  top: -9px;
  height: 1px;
  background: var(--line-strong);
}

.debug-branches article {
  position: relative;
  display: grid;
  align-content: start;
  gap: 9px;
  min-height: 170px;
  padding: 19px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.debug-branches article::before {
  content: "";
  position: absolute;
  top: -10px;
  left: 50%;
  height: 9px;
  width: 1px;
  background: var(--line-strong);
}

.debug-branches strong {
  font-size: 16px;
}

.debug-branches p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.debug-branches code {
  margin-top: auto;
  color: var(--blue);
  font-size: 12px;
}

.evidence-timeline {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
  margin-top: 20px;
  padding: 15px 18px;
  border-radius: 8px;
  background: #18221e;
  color: #e7ede9;
}

.evidence-timeline div {
  display: grid;
  gap: 5px;
  padding: 0 14px;
  border-right: 1px solid rgba(231, 237, 233, 0.18);
}

.evidence-timeline div:last-child {
  border-right: 0;
}

.evidence-timeline span {
  color: #9ccab6;
  font-size: 11px;
  font-weight: 850;
  text-transform: uppercase;
}

.evidence-timeline code {
  color: #e7ede9;
  font-size: 12px;
  word-break: break-word;
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 13px;
  margin-bottom: 18px;
}

.evidence-grid article {
  min-width: 0;
  display: grid;
  align-content: start;
  gap: 9px;
  min-height: 215px;
  padding: 18px;
  border: 1px solid var(--line);
  border-top: 5px solid var(--blue);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.evidence-grid article:nth-child(2) {
  border-top-color: var(--amber);
}

.evidence-grid article:nth-child(3) {
  border-top-color: var(--violet);
}

.evidence-grid article:nth-child(4) {
  border-top-color: var(--coral);
}

.evidence-grid span {
  color: var(--green);
  font-size: 11px;
  font-weight: 850;
}

.evidence-grid h3 {
  font-size: 20px;
}

.evidence-grid > article > code {
  color: var(--blue);
  font-size: 12px;
}

.evidence-grid p {
  margin: 0;
  color: var(--ink);
  font-size: 13px;
}

.evidence-grid small {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}

.operator-routine {
  padding: 20px 21px;
  border-radius: 8px;
  background: #18221e;
  color: #e7ede9;
}

.operator-routine .flow-title {
  color: #e7ede9;
}

.operator-routine ol {
  display: grid;
  grid-template-columns: repeat(5, minmax(135px, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.operator-routine li {
  min-width: 0;
  display: grid;
  align-content: start;
  gap: 8px;
  padding-right: 12px;
  border-right: 1px solid rgba(231, 237, 233, 0.16);
}

.operator-routine li:last-child {
  padding-right: 0;
  border-right: 0;
}

.operator-routine strong {
  color: #9ccab6;
  font-size: 12px;
}

.operator-routine code {
  color: #e7ede9;
  font-size: 11px;
  word-break: break-word;
}

.matrix-table {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.matrix-table > div {
  display: grid;
  grid-template-columns: minmax(190px, 0.9fr) minmax(270px, 1.25fr) minmax(190px, 0.85fr);
  gap: 20px;
  align-items: center;
  padding: 13px 18px;
  border-bottom: 1px solid var(--line);
}

.matrix-table > div:last-child {
  border-bottom: 0;
}

.matrix-table .matrix-head {
  background: var(--surface-inset);
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
}

.matrix-table strong {
  font-size: 14px;
}

.matrix-table code {
  color: var(--blue);
  font-size: 12px;
}

.practice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.practice-grid article {
  min-width: 0;
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.practice-grid span {
  color: var(--green);
  font-size: 11px;
  font-weight: 850;
}

.practice-grid h3 {
  font-size: 21px;
}

.practice-grid ol {
  display: grid;
  gap: 8px;
  margin: 3px 0 0;
  padding-left: 21px;
  color: var(--ink);
  font-size: 13px;
}

.practice-grid code {
  color: var(--blue);
  font-size: 12px;
  word-break: break-word;
}

.practice-grid p {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.roadmap-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.roadmap-flow li {
  position: relative;
  min-width: 0;
  display: grid;
  gap: 8px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.roadmap-flow li:nth-child(-n + 3)::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -13px;
  width: 12px;
  height: 1px;
  background: var(--line-strong);
}

.roadmap-flow li:nth-child(4)::after {
  content: "";
  position: absolute;
  bottom: -13px;
  right: 24px;
  width: 1px;
  height: 12px;
  background: var(--line-strong);
}

.roadmap-flow li:nth-child(5) {
  grid-column: 4;
  grid-row: 2;
}

.roadmap-flow li:nth-child(6) {
  grid-column: 3;
  grid-row: 2;
}

.roadmap-flow li:nth-child(7) {
  grid-column: 2;
  grid-row: 2;
}

.roadmap-flow li:nth-child(8) {
  grid-column: 1;
  grid-row: 2;
}

.roadmap-flow li:nth-child(n + 5):not(:last-child)::after {
  content: "";
  position: absolute;
  top: 50%;
  left: -13px;
  width: 12px;
  height: 1px;
  background: var(--line-strong);
}

.roadmap-flow span {
  color: var(--green);
  font-size: 11px;
  font-weight: 850;
}

.roadmap-flow code {
  color: var(--blue);
  font-size: 12px;
  word-break: break-word;
}

.roadmap-flow strong {
  font-size: 14px;
}

.roadmap-flow .roadmap-core {
  border-top: 5px solid var(--coral);
  padding-top: 12px;
}

.contract-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.contract-grid article {
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.contract-grid h3 {
  min-height: 42px;
  margin-bottom: 12px;
  font-size: 15px;
}

.contract-grid h3 code {
  color: var(--blue);
  word-break: break-word;
}

.contract-grid p {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 8px;
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.contract-grid p span {
  color: var(--green);
  font-size: 11px;
  font-weight: 850;
}

.chapter-list {
  display: grid;
  gap: 22px;
  padding-top: 12px;
}

.chapter {
  scroll-margin-top: 72px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: clip;
}

.chapter-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  padding: 23px 25px;
  border-top: 6px solid var(--green);
  background: #ffffff;
}

.chapter[data-tone="blue"] .chapter-header {
  border-top-color: var(--blue);
}

.chapter[data-tone="amber"] .chapter-header {
  border-top-color: var(--amber);
}

.chapter[data-tone="coral"] .chapter-header {
  border-top-color: var(--coral);
}

.chapter[data-tone="violet"] .chapter-header {
  border-top-color: var(--violet);
}

.chapter-kicker {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.chapter h3 {
  font-size: 28px;
}

.chapter-summary {
  max-width: 860px;
  margin: 10px 0 0;
  color: var(--muted);
}

.status-select {
  width: 132px;
  align-self: start;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 10px;
  background: #ffffff;
  color: var(--ink);
  font-weight: 750;
}

.chapter-body {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  gap: 0;
  border-top: 1px solid var(--line);
}

.chapter-main,
.chapter-aside {
  padding: 22px 25px;
}

.chapter-aside {
  border-left: 1px solid var(--line);
  background: var(--surface-inset);
}

.point-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.point-list li {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  color: var(--ink);
}

.point-list li::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--green);
}

.flow {
  margin-top: 22px;
}

.flow-title,
.aside-title {
  margin: 0 0 12px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: 0;
}

.flow-steps {
  display: grid;
  gap: 10px;
}

.flow-step {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-inset);
}

.step-number {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: #e9efeb;
  color: var(--green);
  font-weight: 850;
  font-variant-numeric: tabular-nums;
}

.flow-step strong {
  display: block;
}

.flow-step span {
  display: block;
  color: var(--muted);
  margin-top: 2px;
}

.file-list {
  display: grid;
  gap: 10px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.file-list a {
  display: block;
  color: var(--blue);
  font-weight: 800;
  text-decoration: none;
  word-break: break-word;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 12px;
}

.file-list a:hover {
  text-decoration: underline;
}

.file-list small {
  display: block;
  color: var(--muted);
  margin-top: 2px;
}

.note-box {
  display: grid;
  gap: 8px;
}

.note-box label {
  color: var(--ink);
  font-weight: 850;
}

.note-box textarea {
  min-height: 130px;
  width: 100%;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #ffffff;
  color: var(--ink);
  outline: none;
}

.note-box textarea:focus,
.status-select:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(22, 112, 77, 0.1);
}

.empty-state {
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: var(--muted);
}

.view-flows .chapter:not([data-has-flow="true"]),
.view-files .chapter:not([data-has-files="true"]) {
  display: none;
}

mark {
  padding: 0 2px;
  background: #ffe3ab;
  color: inherit;
}

@media (max-width: 1180px) {
  .shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .chapter-nav {
    grid-template-columns: repeat(auto-fit, minmax(245px, 1fr));
  }

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

  h1 {
    font-size: 42px;
  }

  .telegram-journey {
    grid-template-columns: 1fr;
  }

  .lifecycle-track,
  .capability-failures,
  .schema-debug-routine,
  .debug-branches,
  .roadmap-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lifecycle-track li::before,
  .lifecycle-track li::after,
  .debug-branches::before,
  .debug-branches article::before,
  .roadmap-flow li::after {
    display: none;
  }

  .roadmap-flow li:nth-child(n) {
    grid-column: auto;
    grid-row: auto;
  }

  .merge-diagram,
  .capability-equation,
  .engine-compose,
  .payload-diagram,
  .schema-lanes,
  .recall-graph {
    grid-template-columns: 1fr;
  }

  .merge-inputs div::after,
  .merge-outputs div::before,
  .engine-inputs article::after,
  .engine-outputs article::before,
  .payload-inputs article::after,
  .payload-checks article::before {
    display: none;
  }

  .engine-callouts,
  .evidence-grid,
  .contract-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .operator-routine ol {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .operator-routine li:nth-child(2n) {
    border-right: 0;
  }

  .operator {
    min-height: 30px;
  }

  .pipeline-detail,
  .schema-wire-samples,
  .memory-track {
    grid-template-columns: 1fr;
  }

  .data-packet {
    position: static;
  }
}

@media (max-width: 760px) {
  .hero,
  .map-band,
  .turn-band,
  .pipeline-band,
  .capability-band,
  .engine-band,
  .payload-band,
  .tool-schema-band,
  .memory-band,
  .recall-band,
  .telegram-band,
  .debug-band,
  .evidence-band,
  .matrix-band,
  .practice-band,
  .roadmap-band,
  .contract-band,
  .chapter-list {
    padding-left: 18px;
    padding-right: 18px;
  }

  .hero {
    padding-top: 34px;
    padding-bottom: 30px;
  }

  h1 {
    font-size: 34px;
  }

  .section-heading h2 {
    font-size: 27px;
  }

  .reading-path {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    margin-top: 24px;
  }

  .reading-path li {
    padding-left: 0;
    grid-template-columns: 30px 55px minmax(0, 1fr);
    align-items: center;
  }

  .reading-path li:not(:last-child)::after {
    display: none;
  }

  .controls {
    align-items: stretch;
    flex-direction: column;
    padding-left: 18px;
    padding-right: 18px;
  }

  .segmented {
    width: 100%;
  }

  .segment {
    flex: 1;
  }

  .atlas-map {
    min-width: 860px;
  }

  .section-heading {
    display: block;
  }

  .section-note {
    margin-top: 12px;
    text-align: left;
  }

  .pipeline-steps {
    grid-template-columns: repeat(7, 164px);
  }

  .history-funnel article,
  .history-funnel .funnel-source,
  .history-funnel .funnel-sanitize,
  .history-funnel .funnel-limit,
  .history-funnel .funnel-compact,
  .history-funnel .funnel-visible {
    width: 100%;
    grid-template-columns: 1fr;
    gap: 3px;
  }

  .lifecycle-track,
  .capability-failures,
  .schema-debug-routine,
  .debug-branches,
  .roadmap-flow,
  .evidence-timeline,
  .engine-callouts,
  .evidence-grid,
  .practice-grid,
  .contract-grid,
  .operator-routine ol {
    grid-template-columns: 1fr;
  }

  .matrix-table > div {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 14px 15px;
  }

  .matrix-table .matrix-head {
    display: none;
  }

  .operator-routine li {
    padding: 0 0 13px;
    border-right: 0;
    border-bottom: 1px solid rgba(231, 237, 233, 0.16);
  }

  .operator-routine li:last-child {
    padding-bottom: 0;
    border-bottom: 0;
  }

  .debug-question {
    padding: 16px;
    font-size: 15px;
  }

  .debug-question::after {
    display: none;
  }

  .evidence-timeline {
    gap: 11px;
  }

  .evidence-timeline div {
    padding: 0 0 11px;
    border-right: 0;
    border-bottom: 1px solid rgba(231, 237, 233, 0.18);
  }

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

  .recall-route li {
    grid-template-columns: 1fr;
  }

  .recall-route code {
    grid-row: auto;
  }

  .diagnostic-steps li {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .memory-layer p {
    min-height: 0;
  }

  .telegram-flow {
    grid-template-columns: 1fr;
  }

  .telegram-flow li {
    min-height: 132px;
    border-right: 0;
  }

  .chapter-header,
  .chapter-body {
    grid-template-columns: 1fr;
  }

  .chapter-aside {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .status-select {
    width: 100%;
  }

  .chapter h3 {
    font-size: 24px;
  }
}