:root {
  --paper: #f5f4ee;
  --paper-deep: #ebe9df;
  --paper-bright: #fffdf6;
  --ink: #08090a;
  --ink-soft: #303331;
  --muted: #696b69;
  --line: rgba(8, 9, 10, 0.18);
  --line-strong: rgba(8, 9, 10, 0.38);
  --blue: #124093;
  --green: #005037;
  --mint: #34c9a0;
  --red: #e2190e;
  --white: #ffffff;
  --display: "Poppins", sans-serif;
  --gujarati: "Noto Sans Gujarati", "Poppins", sans-serif;
  --mono: "IBM Plex Mono", monospace;
  --shell: min(1440px, calc(100vw - 64px));
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--display);
  -webkit-font-smoothing: antialiased;
}

[lang="gu"] {
  font-family: var(--gujarati);
}

a {
  color: inherit;
}

button,
input {
  font: inherit;
}

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

:focus-visible {
  outline: 3px solid var(--mint);
  outline-offset: 4px;
}

::selection {
  background: var(--red);
  color: var(--white);
}

.skip-link {
  position: fixed;
  top: 0;
  left: 1rem;
  z-index: 9999;
  padding: 0.8rem 1rem;
  background: var(--ink);
  color: var(--white);
  font-family: var(--mono);
  font-size: 0.75rem;
  transform: translateY(-120%);
}

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

.read-progress {
  position: fixed;
  z-index: 1100;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--paper-deep);
}

.read-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--red);
}

/* Field Atlas navigation */
.atlas-nav {
  position: sticky;
  z-index: 1000;
  top: 0;
  display: grid;
  grid-template-columns: auto auto 1fr auto auto;
  align-items: stretch;
  min-height: 82px;
  border-bottom: 1px solid var(--line-strong);
  background: var(--paper);
}

.atlas-nav > * {
  min-width: 0;
}

.atlas-brand {
  display: grid;
  place-items: center;
  width: 240px;
  padding: 0.8rem 1.4rem;
  border-right: 1px solid var(--line);
}

.atlas-brand img {
  display: block;
  width: 190px;
  height: auto;
}

.atlas-id {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.75rem 1rem;
  border-right: 1px solid var(--line);
}

.atlas-id strong {
  color: var(--red);
  font-size: 2.25rem;
  line-height: 1;
}

.atlas-id span {
  font-family: var(--mono);
  font-size: 0.58rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.12em;
}

.atlas-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(1rem, 3vw, 3.5rem);
  padding: 0 1.2rem;
}

.atlas-links a {
  position: relative;
  text-decoration: none;
  font-size: 0.72rem;
  font-weight: 700;
}

.atlas-links a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -0.55rem;
  left: 0;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.atlas-links a:hover::after {
  transform: scaleX(1);
}

.atlas-progress-chip {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0 1rem;
  border-left: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.65rem;
}

.signal-dot {
  width: 0.5rem;
  height: 0.5rem;
  background: var(--mint);
  border: 1px solid var(--green);
  border-radius: 50%;
}

.atlas-progress-chip strong {
  color: var(--green);
  font-size: 1rem;
}

.atlas-start {
  display: grid;
  place-items: center;
  min-width: 180px;
  padding: 0 1.5rem;
  background: var(--blue);
  color: var(--white);
  text-decoration: none;
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 600;
}

.atlas-start:hover {
  background: var(--red);
}

/* Hero */
.atlas-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(390px, 0.84fr);
  min-height: calc(100svh - 82px);
  overflow: hidden;
  border-bottom: 1px solid var(--line-strong);
  background-color: var(--paper);
}

.atlas-coordinate {
  position: absolute;
  top: 1.1rem;
  left: 2rem;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.atlas-hero-copy {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(7rem, 11vw, 11rem) clamp(2rem, 6vw, 7rem) 6rem;
  background: rgba(245, 244, 238, 0.9);
}

.atlas-kicker,
.section-index {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.67rem;
  font-weight: 600;
  letter-spacing: 0.15em;
}

.atlas-kicker span {
  color: var(--red);
}

.atlas-hero h1 {
  margin: 2rem 0 0;
  max-width: 940px;
  font-size: clamp(3.6rem, 7.4vw, 8.8rem);
  font-weight: 700;
  line-height: 0.88;
  letter-spacing: -0.072em;
}

.atlas-hero h1 span {
  display: block;
  color: var(--ink);
  font-size: 0.72em;
  line-height: 1.02;
  letter-spacing: -0.055em;
}

.atlas-hero h1 em {
  display: block;
  margin-top: 0.3rem;
  color: var(--blue);
  font-style: normal;
}

.atlas-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  max-width: 900px;
  margin: 2.6rem 0 0;
  border-top: 1px solid var(--line-strong);
  padding-top: 1.4rem;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

.atlas-intro span:first-child {
  color: var(--green);
  font-size: 1.04rem;
  font-weight: 600;
}

.atlas-actions {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  margin-top: 2.3rem;
}

.action-primary,
.action-link {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  min-height: 3.6rem;
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 700;
}

.action-primary {
  min-width: min(380px, 100%);
  padding: 0.8rem 1.2rem;
  background: var(--red);
  color: var(--white);
}

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

.action-link {
  border-bottom: 2px solid var(--blue);
  color: var(--blue);
}

.atlas-hero-board {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  margin: clamp(5rem, 8vw, 7rem) clamp(2rem, 5vw, 5rem) clamp(4rem, 7vw, 6rem) 0;
  border: 2px solid var(--ink);
  background: var(--green);
  color: var(--white);
  box-shadow: 18px 18px 0 var(--red);
}

.board-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.38);
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
}

.board-number {
  padding: 1rem 1.2rem 0;
  color: var(--mint);
  font-size: clamp(9rem, 18vw, 20rem);
  font-weight: 800;
  line-height: 0.88;
  letter-spacing: -0.11em;
}

.board-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin: auto 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.38);
}

.board-stats div {
  padding: 1rem;
  border-right: 1px solid rgba(255, 255, 255, 0.38);
  border-bottom: 1px solid rgba(255, 255, 255, 0.38);
}

.board-stats div:nth-child(2n) {
  border-right: 0;
}

.board-stats dt {
  font-family: var(--mono);
  font-size: 0.55rem;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.58);
}

.board-stats dd {
  margin: 0.3rem 0 0;
  font-size: 1.5rem;
  font-weight: 700;
}

.board-route {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 1px;
  padding: 1rem;
  background: var(--mint);
}

.board-route span {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  background: var(--green);
  color: var(--white);
  font-family: var(--mono);
  font-size: 0.58rem;
}

.atlas-stamp {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 48px;
  border-top: 1px solid var(--line-strong);
  background: var(--paper);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
}

.atlas-stamp span:first-child {
  padding-left: 2rem;
}

.atlas-stamp span:last-child {
  padding-right: 2rem;
  text-align: right;
}

.atlas-stamp strong {
  color: var(--red);
  font-size: 1.4rem;
}

.field-principle {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  align-items: center;
  gap: 2rem;
  padding: 1.2rem 2rem;
  background: var(--red);
  color: var(--white);
  font-size: clamp(1.1rem, 2vw, 2rem);
  font-weight: 700;
}

.field-principle p {
  margin: 0;
}

.field-principle span {
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.12em;
}

/* Shared section framing */
.route-map,
.field-console,
.builder-chain {
  padding: clamp(5rem, 9vw, 10rem) max(32px, calc((100vw - 1440px) / 2));
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(160px, 0.3fr) minmax(0, 1.7fr);
  gap: clamp(2rem, 7vw, 8rem);
  align-items: start;
}

.section-heading h2,
.console-head h2 {
  margin: 0;
  font-size: clamp(2.7rem, 6.8vw, 7.2rem);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: -0.06em;
}

.section-heading h2 span,
.console-head h2 span {
  color: var(--blue);
  font-size: 0.62em;
  letter-spacing: -0.04em;
}

.section-heading > div > p,
.console-head > div > p {
  max-width: 670px;
  margin: 1.6rem 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.section-index {
  color: var(--red);
}

/* Route switchboard */
.route-map {
  border-bottom: 1px solid var(--line-strong);
  background: var(--paper-bright);
}

.route-switchboard {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  margin-top: 5rem;
  border-top: 1px solid var(--ink);
  border-left: 1px solid var(--ink);
}

.route-module {
  position: relative;
  min-height: 270px;
  padding: 1rem;
  border: 0;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  background: var(--paper-bright);
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

.route-module:hover,
.route-module.is-active {
  background: var(--blue);
  color: var(--white);
}

.route-module:nth-child(4n + 2):hover,
.route-module:nth-child(4n + 2).is-active {
  background: var(--green);
}

.route-module:nth-child(4n + 3):hover,
.route-module:nth-child(4n + 3).is-active {
  background: var(--red);
}

.route-module:nth-child(4n):hover,
.route-module:nth-child(4n).is-active {
  background: var(--ink);
}

.route-module-num {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 0.62rem;
}

.route-module strong {
  display: block;
  margin-top: 4rem;
  font-size: 1.15rem;
  line-height: 1.22;
}

.route-module strong span {
  display: block;
  margin-bottom: 0.55rem;
  font-size: 1.05rem;
}

.route-module small {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.08em;
  opacity: 0.64;
}

/* Console */
.field-console {
  background: var(--paper-deep);
}

.console-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.55fr);
  gap: 4rem;
  align-items: end;
}

.console-tools {
  display: grid;
  gap: 0.75rem;
}

.lesson-search {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.8rem;
  min-height: 62px;
  border: 2px solid var(--ink);
  background: var(--paper-bright);
  padding: 0 1rem;
}

.lesson-search span {
  font-family: var(--mono);
  font-size: 0.58rem;
  font-weight: 600;
}

.lesson-search input {
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font-size: 0.82rem;
}

.lesson-search kbd {
  border: 1px solid var(--line-strong);
  padding: 0.25rem 0.4rem;
  font-family: var(--mono);
  font-size: 0.58rem;
}

.continue-learning {
  min-height: 52px;
  border: 0;
  background: var(--ink);
  color: var(--white);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 600;
}

.continue-learning:hover {
  background: var(--red);
}

.console-frame {
  display: grid;
  grid-template-columns: minmax(230px, 0.32fr) minmax(0, 1.68fr);
  min-height: 700px;
  margin-top: 4rem;
  border: 2px solid var(--ink);
  background: var(--paper-bright);
}

.module-rail {
  border-right: 2px solid var(--ink);
  background: var(--green);
}

.module-rail button {
  display: grid;
  grid-template-columns: 2.2rem 1fr;
  gap: 0.7rem;
  width: 100%;
  min-height: 62px;
  padding: 0.75rem 1rem;
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.28);
  background: transparent;
  color: rgba(255, 255, 255, 0.72);
  text-align: left;
  cursor: pointer;
}

.module-rail button span {
  font-family: var(--mono);
  font-size: 0.58rem;
  color: var(--mint);
}

.module-rail button strong {
  font-size: 0.76rem;
  line-height: 1.3;
}

.module-rail button strong small {
  display: block;
  margin-top: 0.25rem;
  color: rgba(255, 255, 255, 0.45);
  font-family: var(--gujarati);
  font-size: 0.7rem;
  font-weight: 500;
}

.module-rail button:hover,
.module-rail button.is-active {
  background: var(--mint);
  color: var(--ink);
}

.module-rail button.is-active span,
.module-rail button.is-active strong small,
.module-rail button:hover span,
.module-rail button:hover strong small {
  color: var(--green);
}

.mission-view {
  min-width: 0;
  padding: clamp(1.2rem, 3vw, 3rem);
}

.mission-intro {
  display: grid;
  grid-template-columns: 0.3fr 0.8fr 0.9fr;
  gap: 2rem;
  min-height: 180px;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 2rem;
}

.mission-code {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--red);
}

.mission-intro h3 {
  margin: 0;
  font-size: clamp(1.8rem, 3.6vw, 4rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.mission-intro h3 span {
  display: block;
  margin-bottom: 0.6rem;
  color: var(--blue);
  font-family: var(--gujarati);
  font-size: 0.65em;
  line-height: 1.25;
  letter-spacing: -0.03em;
}

.mission-copy {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.7;
}

.mission-copy span {
  display: block;
  margin-bottom: 0.9rem;
  color: var(--green);
  font-size: 0.92rem;
  font-weight: 600;
}

.lesson-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 2rem;
  background: var(--ink);
  border: 1px solid var(--ink);
}

.lesson-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 270px;
  padding: 1.2rem;
  background: var(--paper-bright);
}

.lesson-card.is-done {
  background: #dff6ec;
}

.lesson-card-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.lesson-card h3 {
  margin: 2.1rem 0 0;
  font-size: clamp(1.2rem, 2vw, 1.75rem);
  line-height: 1.06;
  letter-spacing: -0.035em;
}

.lesson-card p {
  display: -webkit-box;
  margin: 1rem 0 0;
  overflow: hidden;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.55;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.lesson-card-actions {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.7rem;
  margin-top: auto;
  padding-top: 1.4rem;
}

.lesson-open,
.lesson-done {
  min-height: 42px;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.58rem;
  font-weight: 600;
  text-decoration: none;
}

.lesson-open {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 0.8rem;
}

.lesson-done {
  width: 42px;
}

.lesson-open:hover {
  background: var(--blue);
  color: var(--white);
}

.lesson-done:hover,
.lesson-card.is-done .lesson-done {
  background: var(--green);
  color: var(--white);
}

.no-results {
  margin: 2rem 0 0;
  border: 2px solid var(--red);
  padding: 2rem;
  font-weight: 700;
}

/* Outcome chain */
.builder-chain {
  background: var(--ink);
  color: var(--white);
}

.section-heading.inverse .section-index {
  color: var(--mint);
}

.section-heading.inverse h2 span {
  color: var(--mint);
}

.section-heading.inverse > div > p {
  color: rgba(255, 255, 255, 0.58);
}

.chain-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 5rem 0 0;
  padding: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.3);
  border-left: 1px solid rgba(255, 255, 255, 0.3);
  list-style: none;
}

.chain-list li {
  min-height: 300px;
  padding: 1.2rem;
  border-right: 1px solid rgba(255, 255, 255, 0.3);
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

.chain-list span {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--mint);
}

.chain-list strong {
  display: block;
  margin-top: 7rem;
  font-size: clamp(1.5rem, 2.8vw, 3.5rem);
  line-height: 1;
}

.chain-list p {
  margin: 1rem 0 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.86rem;
}

.chain-list li:nth-child(1) strong { color: var(--mint); }
.chain-list li:nth-child(2) strong { color: #83a8f8; }
.chain-list li:nth-child(3) strong { color: #ff766f; }
.chain-list li:nth-child(4) strong { color: #f4e159; }

.outcome-cta {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 2rem;
  margin-top: 5rem;
}

.outcome-cta p {
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 3rem);
  line-height: 1.16;
}

.outcome-cta a {
  flex: none;
  padding-bottom: 0.6rem;
  border-bottom: 2px solid var(--mint);
  color: var(--mint);
  text-decoration: none;
  font-family: var(--mono);
  font-size: 0.7rem;
}

/* Live-site footer recreation */
.bd-main-footer {
  padding: clamp(4rem, 8vw, 7rem) max(32px, calc((100vw - 1360px) / 2)) 0;
  background: #07110d;
  color: var(--white);
}

.bd-footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr 0.7fr 0.8fr;
  gap: clamp(2rem, 5vw, 5rem);
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  padding-bottom: 4rem;
}

.bd-footer-lead img {
  display: block;
  width: min(250px, 100%);
  height: auto;
  background: var(--paper);
  padding: 0.4rem 0.6rem;
}

.bd-footer-statement {
  margin: 1.8rem 0 0;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.045em;
}

.bd-footer-lead > p:last-of-type {
  max-width: 440px;
  margin: 1.2rem 0 0;
  color: rgba(255, 255, 255, 0.48);
  font-size: 0.82rem;
  line-height: 1.7;
}

.bd-social-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.7rem;
}

.bd-social-row a {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  color: rgba(255, 255, 255, 0.62);
  text-decoration: none;
  font-family: var(--mono);
  font-size: 0.58rem;
}

.bd-social-row a:hover {
  background: var(--white);
  color: var(--ink);
}

.bd-footer-label {
  margin: 0;
  color: rgba(255, 255, 255, 0.35);
  font-family: var(--mono);
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.bd-main-footer ul {
  display: grid;
  gap: 0.75rem;
  margin: 1.7rem 0 0;
  padding: 0;
  list-style: none;
}

.bd-main-footer li a {
  color: rgba(255, 255, 255, 0.62);
  text-decoration: none;
  font-size: 0.8rem;
}

.bd-main-footer li a:hover {
  color: var(--white);
}

.bd-footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  min-height: 72px;
  color: rgba(255, 255, 255, 0.36);
  font-size: 0.65rem;
}

.bd-footer-bottom p {
  margin: 0;
}

.bd-footer-bottom div {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
}

.bd-footer-bottom a {
  color: inherit;
  text-decoration: none;
}

.bd-footer-bottom a:hover {
  color: var(--white);
}

/* Embedded lesson reader */
.lesson-reader {
  width: 100vw;
  max-width: none;
  height: 100svh;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: var(--ink);
}

.lesson-reader::backdrop {
  background: rgba(8, 9, 10, 0.86);
}

.reader-shell {
  display: grid;
  grid-template-rows: auto 1fr;
  height: 100%;
  background: var(--paper);
}

.reader-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  min-height: 78px;
  border-bottom: 2px solid var(--ink);
  padding-left: 1.2rem;
  background: var(--paper);
}

.reader-head > div {
  min-width: 0;
}

.reader-head span {
  display: block;
  font-family: var(--mono);
  font-size: 0.55rem;
  color: var(--red);
}

.reader-head strong {
  display: block;
  overflow: hidden;
  margin-top: 0.25rem;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.9rem;
}

.reader-head nav {
  display: flex;
  align-self: stretch;
}

.reader-head button,
.reader-head a {
  display: grid;
  place-items: center;
  min-width: 58px;
  border: 0;
  border-left: 1px solid var(--line-strong);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
  font-family: var(--mono);
  font-size: 0.58rem;
  font-weight: 600;
}

#reader-complete,
#reader-open,
#reader-close {
  padding: 0 1rem;
}

.reader-head button:hover,
.reader-head a:hover {
  background: var(--blue);
  color: var(--white);
}

#reader-close:hover {
  background: var(--red);
}

.reader-shell iframe {
  width: 100%;
  height: 100%;
  border: 0;
  background: var(--paper);
}

.noscript-index {
  padding: 3rem;
  background: var(--paper-bright);
}

/* Episode page system */
html.bd-field-episode body {
  background: var(--paper) !important;
  color: var(--ink) !important;
  font-family: var(--display) !important;
}

html.bd-field-episode body::before {
  content: "98 / BRAND DOCKS FIELD MANUAL";
  position: fixed;
  z-index: 998;
  right: -74px;
  top: 46%;
  width: 210px;
  padding: 0.55rem;
  background: var(--red);
  color: var(--white);
  text-align: center;
  font-family: var(--mono);
  font-size: 0.54rem;
  letter-spacing: 0.12em;
  transform: rotate(90deg);
}

html.bd-field-episode nav.top {
  position: sticky !important;
  top: 0 !important;
  z-index: 900 !important;
  display: grid !important;
  grid-template-columns: auto 1fr auto !important;
  min-height: 78px !important;
  height: auto !important;
  padding: 0 2rem !important;
  border: 0 !important;
  border-bottom: 2px solid var(--ink) !important;
  background: var(--paper) !important;
  box-shadow: none !important;
}

html.bd-field-episode .logo-wrap {
  display: flex !important;
  align-items: center !important;
}

html.bd-field-episode .logo-img {
  width: 190px !important;
  height: auto !important;
  max-height: none !important;
}

html.bd-field-episode .nav-right {
  display: flex !important;
  justify-content: flex-end !important;
  gap: 0 !important;
}

html.bd-field-episode .nav-link,
html.bd-field-episode nav.top .nav-right a {
  display: grid !important;
  place-items: center !important;
  min-height: 44px !important;
  padding: 0 1rem !important;
  border-radius: 0 !important;
  color: var(--ink) !important;
  font-family: var(--mono) !important;
  font-size: 0.62rem !important;
  font-weight: 600 !important;
  text-decoration: none !important;
}

html.bd-field-episode .nav-link:hover,
html.bd-field-episode nav.top .nav-right a:hover {
  background: var(--paper-deep) !important;
}

html.bd-field-episode .nav-cta {
  background: var(--blue) !important;
  color: var(--white) !important;
}

html.bd-field-episode .progress-bar-fixed {
  top: 78px !important;
  z-index: 899 !important;
  height: 4px !important;
  background: var(--paper-deep) !important;
}

html.bd-field-episode .progress-fill {
  background: var(--red) !important;
  border-radius: 0 !important;
}

html.bd-field-episode .section-nav {
  display: none !important;
}

html.bd-field-episode header.hero {
  position: relative !important;
  display: grid !important;
  grid-template-columns: minmax(340px, 0.72fr) minmax(0, 1.28fr) !important;
  align-items: stretch !important;
  min-height: min(760px, calc(100svh - 78px)) !important;
  border-bottom: 2px solid var(--ink) !important;
  background: var(--paper) !important;
  overflow: hidden !important;
}

html.bd-field-episode .hero-bg,
html.bd-field-episode .hero-blob-1,
html.bd-field-episode .hero-blob-2,
html.bd-field-episode .hero-lines {
  display: none !important;
}

html.bd-field-episode .hero-content {
  position: relative !important;
  z-index: 2 !important;
  display: flex !important;
  flex-direction: column !important;
  justify-content: center !important;
  width: auto !important;
  max-width: none !important;
  margin: 0 !important;
  padding: clamp(5rem, 9vw, 9rem) clamp(2rem, 7vw, 8rem) 5rem !important;
  background: var(--paper) !important;
}

html.bd-field-episode .breadcrumb {
  display: flex !important;
  flex-wrap: wrap !important;
  gap: 0.5rem !important;
  margin: 0 0 2.5rem !important;
  color: var(--muted) !important;
  font-family: var(--mono) !important;
  font-size: 0.58rem !important;
  letter-spacing: 0.08em !important;
}

html.bd-field-episode .breadcrumb a {
  color: var(--blue) !important;
}

html.bd-field-episode .hero-eyebrow {
  display: flex !important;
  align-items: center !important;
  gap: 0.7rem !important;
  color: var(--red) !important;
  font-family: var(--mono) !important;
  font-size: 0.64rem !important;
  font-weight: 600 !important;
  letter-spacing: 0.12em !important;
}

html.bd-field-episode .hero-eyebrow .dot {
  width: 0.55rem !important;
  height: 0.55rem !important;
  background: var(--mint) !important;
  border: 1px solid var(--green) !important;
  border-radius: 50% !important;
}

html.bd-field-episode .hero-content h1 {
  max-width: 980px !important;
  margin: 1.5rem 0 0 !important;
  color: var(--ink) !important;
  font-family: var(--display) !important;
  font-size: clamp(2.9rem, 4.9vw, 5.6rem) !important;
  font-weight: 700 !important;
  line-height: 0.92 !important;
  letter-spacing: -0.062em !important;
}

html.bd-field-episode .hero-content h1 span {
  color: var(--blue) !important;
}

html.bd-field-episode .hero-sub {
  max-width: 780px !important;
  margin: 1.8rem 0 0 !important;
  color: var(--ink-soft) !important;
  font-size: clamp(0.95rem, 1.2vw, 1.1rem) !important;
  line-height: 1.72 !important;
}

html.bd-field-episode .meta-row,
html.bd-field-episode .tags-row {
  display: flex !important;
  flex-wrap: wrap !important;
  gap: 0 !important;
  margin-top: 1.8rem !important;
}

html.bd-field-episode .meta-item,
html.bd-field-episode .tag {
  margin: 0 !important;
  border: 1px solid var(--line-strong) !important;
  border-right: 0 !important;
  border-radius: 0 !important;
  background: transparent !important;
  color: var(--muted) !important;
  padding: 0.55rem 0.75rem !important;
  font-family: var(--mono) !important;
  font-size: 0.56rem !important;
}

html.bd-field-episode .meta-item:last-child,
html.bd-field-episode .tag:last-child {
  border-right: 1px solid var(--line-strong) !important;
}

html.bd-field-episode .hero-tokens {
  position: relative !important;
  inset: auto !important;
  display: grid !important;
  place-items: center !important;
  width: auto !important;
  height: auto !important;
  border-left: 2px solid var(--ink) !important;
  background: var(--green) !important;
  overflow: hidden !important;
}

html.bd-field-episode .hero-tokens::before {
  content: attr(data-episode-label);
  position: absolute;
  top: 1rem;
  right: 1rem;
  color: var(--mint);
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.12em;
}

html.bd-field-episode .token-float-wrap {
  width: min(420px, 82%) !important;
  height: min(420px, 70%) !important;
  border: 1px solid rgba(255, 255, 255, 0.38) !important;
}

html.bd-field-episode .tf {
  border: 1px solid rgba(255, 255, 255, 0.45) !important;
  border-radius: 0 !important;
  background: var(--green) !important;
  color: var(--white) !important;
  box-shadow: none !important;
  font-family: var(--mono) !important;
  animation: none !important;
}

html.bd-field-episode .tf-center {
  border: 2px solid var(--ink) !important;
  border-radius: 0 !important;
  background: var(--mint) !important;
  color: var(--ink) !important;
  box-shadow: 12px 12px 0 var(--red) !important;
  animation: none !important;
}

html.bd-field-episode .tf-center .big {
  color: var(--ink) !important;
}

html.bd-field-episode .tf-center .small {
  color: var(--green) !important;
  opacity: 1 !important;
}

html.bd-field-episode .breadcrumb .sep {
  color: var(--muted) !important;
}

/* The original lessons used reveal and floating effects. The Field Atlas keeps
   their information but presents it as a still, editorial reference system. */
html.bd-field-episode .hero-content > *,
html.bd-field-episode .toc,
html.bd-field-episode .concept-card,
html.bd-field-episode .token-demo,
html.bd-field-episode .cost-card,
html.bd-field-episode .bpe-step,
html.bd-field-episode .tip-card,
html.bd-field-episode .callout,
html.bd-field-episode .table-wrap,
html.bd-field-episode .code-block,
html.bd-field-episode .tok {
  opacity: 1 !important;
  animation: none !important;
  transition: none !important;
}

html.bd-field-episode .toc,
html.bd-field-episode .concept-card,
html.bd-field-episode .token-demo,
html.bd-field-episode .cost-card,
html.bd-field-episode .bpe-step,
html.bd-field-episode .tip-card,
html.bd-field-episode .callout,
html.bd-field-episode .table-wrap,
html.bd-field-episode .code-block {
  transform: none !important;
}

html.bd-field-episode .episode-bilingual-note {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  max-width: 780px;
  margin-top: 1.4rem;
  border-left: 5px solid var(--green);
  background: var(--paper-deep);
  padding: 1rem;
}

html.bd-field-episode .episode-bilingual-note strong {
  color: var(--green);
  font-family: var(--mono);
  font-size: 0.55rem;
}

html.bd-field-episode .episode-bilingual-note p {
  margin: 0;
  color: var(--green);
  font-family: var(--gujarati);
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1.65;
}

html.bd-field-episode main.layout {
  display: grid !important;
  grid-template-columns: minmax(220px, 0.34fr) minmax(0, 1.66fr) !important;
  column-gap: clamp(2rem, 6vw, 7rem) !important;
  width: var(--shell) !important;
  max-width: none !important;
  margin: 0 auto !important;
  padding: clamp(4rem, 8vw, 8rem) 0 !important;
}

html.bd-field-episode .toc {
  position: sticky !important;
  top: 110px !important;
  align-self: start !important;
  max-height: calc(100svh - 140px) !important;
  margin: 0 !important;
  overflow: auto !important;
  border: 0 !important;
  border-radius: 0 !important;
  background: var(--ink) !important;
  color: var(--white) !important;
  padding: 1.2rem !important;
  box-shadow: 10px 10px 0 var(--red) !important;
}

html.bd-field-episode .toc-title {
  margin: 0 0 1rem !important;
  color: var(--mint) !important;
  font-family: var(--mono) !important;
  font-size: 0.58rem !important;
  letter-spacing: 0.12em !important;
  text-transform: uppercase !important;
}

html.bd-field-episode .toc-list {
  display: grid !important;
  gap: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
  list-style: none !important;
}

html.bd-field-episode .toc-list li {
  margin: 0 !important;
  border-top: 1px solid rgba(255, 255, 255, 0.16) !important;
}

html.bd-field-episode .toc-list a {
  display: grid !important;
  grid-template-columns: 1.8rem 1fr !important;
  gap: 0.5rem !important;
  padding: 0.7rem 0 !important;
  color: rgba(255, 255, 255, 0.62) !important;
  text-decoration: none !important;
  font-size: 0.65rem !important;
  line-height: 1.4 !important;
}

html.bd-field-episode .toc-list a:hover {
  color: var(--white) !important;
}

html.bd-field-episode .toc-num {
  color: var(--mint) !important;
  font-family: var(--mono) !important;
}

html.bd-field-episode article.prose {
  width: 100% !important;
  max-width: 880px !important;
  margin: 0 !important;
  color: var(--ink-soft) !important;
  counter-reset: field-section !important;
  font-family: var(--display) !important;
  font-size: clamp(0.96rem, 1.2vw, 1.07rem) !important;
  line-height: 1.84 !important;
}

html.bd-field-episode .prose > p {
  margin: 0 0 1.25rem !important;
}

html.bd-field-episode .prose h2 {
  position: relative !important;
  margin: clamp(4rem, 7vw, 7rem) 0 1.2rem !important;
  color: var(--ink) !important;
  font-family: var(--display) !important;
  font-size: clamp(2rem, 4vw, 4.6rem) !important;
  font-weight: 700 !important;
  line-height: 0.98 !important;
  letter-spacing: -0.05em !important;
  counter-increment: field-section !important;
}

html.bd-field-episode .prose h2::before {
  content: counter(field-section, decimal-leading-zero) " / ";
  display: block;
  margin-bottom: 0.75rem;
  color: var(--red);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
}

html.bd-field-episode .prose h3 {
  margin: 2.4rem 0 0.8rem !important;
  color: var(--blue) !important;
  font-family: var(--display) !important;
  font-size: clamp(1.25rem, 2vw, 1.75rem) !important;
  line-height: 1.2 !important;
}

html.bd-field-episode .section-rule {
  width: 100% !important;
  height: 2px !important;
  margin: 0 0 1.8rem !important;
  background: var(--ink) !important;
}

html.bd-field-episode .callout,
html.bd-field-episode .concept-card,
html.bd-field-episode .token-demo,
html.bd-field-episode .cost-card,
html.bd-field-episode .bpe-step,
html.bd-field-episode .tip-card,
html.bd-field-episode .arch-card,
html.bd-field-episode .phil-item {
  border: 1px solid var(--ink) !important;
  border-radius: 0 !important;
  background: var(--paper-bright) !important;
  color: var(--ink) !important;
  box-shadow: none !important;
}

html.bd-field-episode .concept-card::before,
html.bd-field-episode .concept-card::after {
  display: none !important;
}

html.bd-field-episode .concept-card {
  border-left: 7px solid var(--blue) !important;
  padding: clamp(1.2rem, 3vw, 2rem) !important;
}

html.bd-field-episode .concept-card .concept-label {
  color: var(--red) !important;
  font-family: var(--mono) !important;
  font-weight: 600 !important;
}

html.bd-field-episode .concept-card .concept-title {
  color: var(--ink) !important;
  font-family: var(--display) !important;
}

html.bd-field-episode .concept-card .concept-body {
  color: var(--ink-soft) !important;
  font-family: var(--display) !important;
  font-weight: 500 !important;
}

/* Episode 28: production RAG is shown as one contained operational map. */
html.bd-field-episode .production-flow {
  margin: 2rem 0 3rem;
  border: 2px solid var(--ink);
  background: var(--paper-bright);
  box-shadow: 12px 12px 0 var(--green);
}

html.bd-field-episode .production-flow-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 2px solid var(--ink);
  background: var(--ink);
  color: var(--white);
  padding: 0.8rem 1rem;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
}

html.bd-field-episode .production-flow-input,
html.bd-field-episode .production-flow-output {
  margin: 1rem;
  border: 2px solid var(--ink);
  padding: 1.1rem;
}

html.bd-field-episode .production-flow-input {
  background: var(--mint);
}

html.bd-field-episode .production-flow-output {
  background: var(--blue);
  color: var(--white);
}

html.bd-field-episode .production-flow-input span,
html.bd-field-episode .production-flow-output span {
  display: block;
  margin-bottom: 0.35rem;
  font-family: var(--mono);
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.1em;
}

html.bd-field-episode .production-flow-input strong,
html.bd-field-episode .production-flow-output strong {
  display: block;
  font-family: var(--display);
  font-size: clamp(1.35rem, 2.5vw, 2.2rem);
  line-height: 1.05;
}

html.bd-field-episode .production-flow-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0 1rem;
  border: 1px solid var(--ink);
  background: var(--ink);
}

html.bd-field-episode .production-flow-step {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  gap: 0.8rem;
  min-width: 0;
  background: var(--paper);
  padding: 1rem;
}

html.bd-field-episode .production-flow-step > span {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--ink);
  background: var(--red);
  color: var(--white);
  font-family: var(--mono);
  font-size: 0.58rem;
}

html.bd-field-episode .production-flow-step strong {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--ink);
  font-family: var(--display);
  font-size: 1rem;
}

html.bd-field-episode .production-flow-step p {
  margin: 0 !important;
  color: var(--ink-soft) !important;
  font-size: 0.72rem !important;
  line-height: 1.55 !important;
}

html.bd-field-episode .production-flow-note {
  margin: 1rem !important;
  border-top: 1px solid var(--ink);
  padding: 1rem 0 0 !important;
  color: var(--green) !important;
  font-family: var(--mono) !important;
  font-size: 0.67rem !important;
  font-weight: 600 !important;
}

html.bd-field-episode .ascii-diagram-box {
  margin: 1.4rem 0;
  overflow-x: auto;
  border: 2px solid var(--ink);
  background: var(--ink);
  padding: 1rem 1.2rem;
  box-shadow: 8px 8px 0 var(--blue);
}

html.bd-field-episode .ascii-diagram-box p {
  min-width: max-content;
  margin: 0 !important;
  color: var(--white) !important;
  font-family: var(--mono) !important;
  font-size: 0.73rem !important;
  line-height: 1.45 !important;
  white-space: pre !important;
}

html.bd-field-episode .callout {
  border-left: 7px solid var(--blue) !important;
  padding: 1.2rem !important;
}

html.bd-field-episode .callout-tip { border-left-color: var(--green) !important; }
html.bd-field-episode .callout-warn { border-left-color: var(--red) !important; }

html.bd-field-episode .code-block {
  overflow: hidden !important;
  border: 2px solid var(--ink) !important;
  border-radius: 0 !important;
  background: var(--ink) !important;
  box-shadow: 9px 9px 0 var(--blue) !important;
}

html.bd-field-episode .code-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.22) !important;
  background: var(--green) !important;
}

html.bd-field-episode .code-body,
html.bd-field-episode pre,
html.bd-field-episode code {
  font-family: var(--mono) !important;
}

html.bd-field-episode .table-wrap {
  overflow-x: auto !important;
  border: 2px solid var(--ink) !important;
  border-radius: 0 !important;
  box-shadow: 9px 9px 0 var(--mint) !important;
}

html.bd-field-episode table {
  width: 100% !important;
  border-collapse: collapse !important;
  background: var(--paper-bright) !important;
}

html.bd-field-episode th {
  background: var(--blue) !important;
  color: var(--white) !important;
}

html.bd-field-episode th,
html.bd-field-episode td {
  border: 1px solid var(--line-strong) !important;
  padding: 0.8rem !important;
}

html.bd-field-episode .ep-nav {
  grid-column: 1 / -1 !important;
  display: grid !important;
  grid-template-columns: 1fr 1fr !important;
  gap: 1px !important;
  margin-top: 5rem !important;
  border: 1px solid var(--ink) !important;
  background: var(--ink) !important;
}

html.bd-field-episode .ep-nav-card {
  min-height: 150px !important;
  border: 0 !important;
  border-radius: 0 !important;
  background: var(--paper-bright) !important;
  color: var(--ink) !important;
  padding: 1.2rem !important;
  text-decoration: none !important;
}

html.bd-field-episode .ep-nav-card:hover {
  background: var(--blue) !important;
  color: var(--white) !important;
}

html.bd-field-episode .ep-nav-dir {
  font-family: var(--mono) !important;
  font-size: 0.58rem !important;
  color: var(--red) !important;
}

html.bd-field-episode .ep-nav-title {
  display: block !important;
  margin-top: 2.2rem !important;
  font-size: 1rem !important;
  font-weight: 700 !important;
}

html.bd-field-episode .episode-dock {
  position: fixed;
  z-index: 850;
  right: 1.2rem;
  bottom: 1.2rem;
  display: grid;
  grid-template-columns: auto auto auto;
  border: 2px solid var(--ink);
  background: var(--paper);
  box-shadow: 7px 7px 0 var(--red);
}

html.bd-field-episode .episode-dock a,
html.bd-field-episode .episode-dock button {
  display: grid;
  place-items: center;
  min-height: 48px;
  border: 0;
  border-right: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  padding: 0 0.9rem;
  text-decoration: none;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.58rem;
  font-weight: 600;
}

html.bd-field-episode .episode-dock > *:last-child {
  border-right: 0;
}

html.bd-field-episode .episode-dock a:hover,
html.bd-field-episode .episode-dock button:hover,
html.bd-field-episode .episode-dock button.is-done {
  background: var(--blue);
  color: var(--white);
}

html.bd-field-episode body.is-embedded nav.top,
html.bd-field-episode body.is-embedded .progress-bar-fixed,
html.bd-field-episode body.is-embedded .bd-main-footer,
html.bd-field-episode body.is-embedded .episode-dock,
html.bd-field-episode body.is-embedded::before {
  display: none !important;
}

html.bd-field-episode body.is-embedded header.hero {
  min-height: 610px !important;
}

/* Responsive */
@media (max-width: 1180px) {
  .atlas-nav {
    grid-template-columns: auto auto 1fr auto;
  }

  .atlas-links,
  .atlas-progress-chip {
    display: none;
  }

  .atlas-hero {
    grid-template-columns: 1fr 0.8fr;
  }

  .atlas-hero-board {
    margin-right: 2rem;
  }

  .route-switchboard {
    grid-template-columns: repeat(4, 1fr);
  }

  .chain-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .bd-footer-grid {
    grid-template-columns: 1.2fr 0.8fr 0.8fr;
  }

  .bd-footer-grid > div:last-child {
    grid-column: 2 / -1;
  }

  html.bd-field-episode header.hero {
    grid-template-columns: minmax(300px, 0.72fr) minmax(0, 1.28fr) !important;
  }

  html.bd-field-episode .hero-content {
    padding-right: 3rem !important;
    padding-left: 3rem !important;
  }
}

@media (max-width: 900px) {
  :root {
    --shell: calc(100vw - 32px);
  }

  .atlas-nav {
    grid-template-columns: 1fr auto auto;
    min-height: 70px;
  }

  .atlas-brand {
    justify-content: start;
    width: auto;
    border-right: 0;
  }

  .atlas-brand img {
    width: 155px;
  }

  .atlas-id {
    border-left: 1px solid var(--line);
  }

  .atlas-start {
    min-width: auto;
    padding: 0 1rem;
    font-size: 0.58rem;
  }

  .atlas-hero {
    grid-template-columns: 1fr;
    min-height: auto;
    background-size: 48px 48px;
  }

  .atlas-hero-copy {
    padding: 7rem 1.2rem 4rem;
  }

  .atlas-intro {
    grid-template-columns: 1fr;
    gap: 0.9rem;
  }

  .atlas-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .atlas-hero-board {
    min-height: 560px;
    margin: 0 1.2rem 5rem;
  }

  .field-principle {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .field-principle span {
    margin-top: 1rem;
  }

  .section-heading,
  .console-head {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .route-switchboard {
    grid-template-columns: repeat(2, 1fr);
  }

  .console-frame {
    grid-template-columns: 1fr;
  }

  .module-rail {
    display: flex;
    overflow-x: auto;
    border-right: 0;
    border-bottom: 2px solid var(--ink);
  }

  .module-rail button {
    flex: 0 0 190px;
    min-height: 82px;
    border-right: 1px solid rgba(255, 255, 255, 0.28);
    border-bottom: 0;
  }

  .mission-intro {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

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

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

  .bd-footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .bd-footer-grid > div:first-child {
    grid-column: 1 / -1;
  }

  .bd-footer-grid > div:last-child {
    grid-column: auto;
  }

  .bd-footer-bottom {
    align-items: flex-start;
    flex-direction: column;
    padding: 1.5rem 0;
  }

  .reader-head {
    grid-template-columns: 1fr;
    padding: 0.8rem;
  }

  .reader-head nav {
    min-height: 52px;
    border: 1px solid var(--ink);
  }

  #reader-open,
  #reader-complete {
    display: none;
  }

  .reader-head button,
  .reader-head a {
    flex: 1;
  }

  html.bd-field-episode nav.top {
    grid-template-columns: 1fr auto !important;
    min-height: 68px !important;
    padding: 0 1rem !important;
  }

  html.bd-field-episode .logo-img {
    width: 150px !important;
  }

  html.bd-field-episode .nav-link:not(.nav-cta) {
    display: none !important;
  }

  html.bd-field-episode .progress-bar-fixed {
    top: 68px !important;
  }

  html.bd-field-episode header.hero {
    grid-template-columns: 1fr !important;
  }

  html.bd-field-episode .hero-tokens {
    order: 2 !important;
    min-height: 450px !important;
    border-top: 2px solid var(--ink) !important;
    border-left: 0 !important;
  }

  html.bd-field-episode .hero-content {
    order: 1 !important;
    padding: 5.5rem 1.2rem 4rem !important;
  }

  html.bd-field-episode main.layout {
    grid-template-columns: minmax(0, 1fr) !important;
    column-gap: 0 !important;
    width: calc(100vw - 32px) !important;
    padding-top: 3rem !important;
  }

  html.bd-field-episode main.layout > *,
  html.bd-field-episode article.prose,
  html.bd-field-episode .toc {
    min-width: 0 !important;
    width: 100% !important;
    max-width: 100% !important;
  }

  html.bd-field-episode .prose p,
  html.bd-field-episode .prose li,
  html.bd-field-episode .prose h2,
  html.bd-field-episode .prose h3,
  html.bd-field-episode .concept-card,
  html.bd-field-episode .callout {
    overflow-wrap: anywhere !important;
  }

  html.bd-field-episode .production-flow-steps {
    grid-template-columns: 1fr;
  }

  html.bd-field-episode .toc {
    position: relative !important;
    top: auto !important;
    max-height: 330px !important;
    margin-bottom: 4rem !important;
  }

  html.bd-field-episode .ep-nav {
    grid-template-columns: 1fr !important;
  }
}

@media (max-width: 600px) {
  .atlas-nav {
    grid-template-columns: 1fr auto;
  }

  .atlas-id {
    display: none;
  }

  .atlas-hero h1 {
    font-size: clamp(3.2rem, 17vw, 5.8rem);
  }

  .atlas-coordinate {
    left: 1.2rem;
  }

  .action-primary {
    min-width: 0;
  }

  .atlas-hero-board {
    min-height: 510px;
    box-shadow: 10px 10px 0 var(--red);
  }

  .board-number {
    font-size: 11rem;
  }

  .route-map,
  .field-console,
  .builder-chain {
    padding-right: 1rem;
    padding-left: 1rem;
  }

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

  .route-module {
    min-height: 190px;
  }

  .route-module strong {
    margin-top: 2rem;
  }

  .lesson-search {
    grid-template-columns: 1fr;
    gap: 0.4rem;
    padding: 0.8rem;
  }

  .lesson-search kbd {
    display: none;
  }

  .mission-view {
    padding: 0.8rem;
  }

  .lesson-card {
    min-height: 245px;
  }

  .chain-list {
    grid-template-columns: 1fr;
  }

  .chain-list li {
    min-height: 220px;
  }

  .chain-list strong {
    margin-top: 4rem;
  }

  .bd-main-footer {
    padding-right: 1rem;
    padding-left: 1rem;
  }

  .bd-footer-grid {
    grid-template-columns: 1fr;
  }

  .bd-footer-grid > div:first-child,
  .bd-footer-grid > div:last-child {
    grid-column: auto;
  }

  html.bd-field-episode body::before {
    display: none !important;
  }

  html.bd-field-episode .hero-content h1 {
    font-size: clamp(2.75rem, 15vw, 4.6rem) !important;
  }

  html.bd-field-episode .hero-tokens {
    min-height: 390px !important;
  }

  html.bd-field-episode .token-float-wrap {
    width: 84% !important;
    height: 340px !important;
  }

  html.bd-field-episode .episode-dock {
    right: 0.65rem;
    bottom: 0.65rem;
    left: 0.65rem;
    grid-template-columns: 1fr auto 1fr;
  }

  html.bd-field-episode .episode-dock a,
  html.bd-field-episode .episode-dock button {
    padding: 0 0.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media print {
  .atlas-nav,
  .read-progress,
  .episode-dock,
  html.bd-field-episode nav.top,
  html.bd-field-episode .progress-bar-fixed,
  html.bd-field-episode .toc,
  html.bd-field-episode body::before,
  .bd-main-footer {
    display: none !important;
  }

  html.bd-field-episode main.layout {
    display: block !important;
    width: 100% !important;
  }
}