.essay-page {
  display: grid;
  grid-template-rows: auto minmax(min-content, 1fr) auto;
}

.essay-page .site-header,
.essay-page .site-footer,
.essay-main {
  width: min(var(--page-width), 100%);
}

.essay-main {
  min-width: 0;
}

.essay-article {
  min-width: 0;
}

.essay-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(20rem, 0.72fr);
  grid-template-areas:
    "title visual"
    "lead visual"
    "product visual"
    "context visual"
    "meta visual";
  align-items: start;
  column-gap: clamp(2.5rem, 6vw, 6rem);
  min-height: min(47rem, calc(100svh - 10rem));
  padding-block: clamp(3.5rem, 8vw, 7rem);
}

.essay-title {
  grid-area: title;
  max-width: 12ch;
  margin: 0;
  font-size: clamp(3.4rem, 6.8vw, 5.8rem);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 0.92;
  text-wrap: balance;
}

.essay-lead,
.essay-product-context,
.essay-context {
  max-width: 58ch;
  font-family: system-ui, sans-serif;
  line-height: 1.65;
}

.essay-lead {
  grid-area: lead;
  margin: clamp(2rem, 4vw, 3.25rem) 0 0;
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
}

.essay-product-context {
  grid-area: product;
  margin: 0.65rem 0 0;
  font-size: clamp(0.98rem, 1.15vw, 1.08rem);
}

.essay-context {
  grid-area: context;
  margin-top: 1.2rem;
  font-size: clamp(0.98rem, 1.15vw, 1.08rem);
}

.essay-context p {
  margin: 0;
}

.essay-context p + p {
  margin-top: 1rem;
}

.essay-meta {
  grid-area: meta;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  margin: 1.5rem 0 0;
  color: var(--soft-ink);
  font-family: system-ui, sans-serif;
  font-size: 0.82rem;
  line-height: 1.4;
}

.essay-meta span + span {
  position: relative;
}

.essay-meta span + span::before {
  position: absolute;
  top: 50%;
  left: -0.9rem;
  width: 0.25rem;
  height: 0.25rem;
  border-radius: 50%;
  background: var(--accent-text);
  content: "";
  transform: translateY(-50%);
}

.hero-signal {
  grid-area: visual;
  align-self: center;
  width: 100%;
  max-width: 31rem;
  margin: 0 auto;
}

.hero-signal svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.hero-signal .signal-orbit,
.hero-signal .signal-node,
.hero-signal .signal-path {
  fill: var(--page-background);
  vector-effect: non-scaling-stroke;
}

.hero-signal .signal-orbit {
  stroke: var(--fine-line);
  stroke-width: 1;
}

.hero-signal .signal-orbit--inner {
  stroke: var(--ink);
}

.hero-signal .signal-path {
  stroke: var(--accent-text);
  stroke-width: 2;
}

.hero-signal .signal-node {
  stroke: var(--accent-text);
  stroke-width: 1.5;
}

.hero-signal .signal-arrow {
  fill: var(--accent-text);
}

.hero-signal text {
  fill: var(--ink);
}

.hero-signal .signal-count {
  font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  font-size: 4.5rem;
  letter-spacing: -0.04em;
}

.hero-signal .signal-number {
  font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  font-size: 1.35rem;
  text-anchor: middle;
}

.hero-signal .signal-label {
  font-family: system-ui, sans-serif;
  font-size: 0.82rem;
}

.lesson-index {
  position: relative;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  margin: 0;
  padding: 1.35rem 0 clamp(3.5rem, 8vw, 6rem);
  border-top: 1px solid var(--accent-text);
  font-family: system-ui, sans-serif;
}

.lesson-index::before {
  position: absolute;
  top: -0.25rem;
  left: 0;
  width: 0.5rem;
  height: 0.5rem;
  border: 1px solid var(--accent-text);
  border-radius: 50%;
  background: var(--page-background);
  content: "";
}

.lesson-index a {
  min-width: 0;
  padding-right: clamp(0.75rem, 2vw, 1.75rem);
  text-decoration: none;
}

.lesson-index a + a {
  padding-left: clamp(0.75rem, 2vw, 1.75rem);
  border-left: 1px solid var(--fine-line);
}

.lesson-index-number,
.lesson-index-label {
  display: block;
}

.lesson-index-number {
  color: var(--accent-text);
  font-size: 0.76rem;
  font-weight: 700;
}

.lesson-index-label {
  margin-top: 0.45rem;
  font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  font-size: clamp(0.95rem, 1.35vw, 1.15rem);
  line-height: 1.15;
}

.lesson-index a:hover .lesson-index-label,
.lesson-index a:focus-visible .lesson-index-label {
  color: var(--accent-text);
}

.essay-body {
  --path-column: 4.5rem;
  position: relative;
  width: min(68rem, 100%);
  margin-inline: auto;
}

.essay-body::before {
  position: absolute;
  inset-block: 0.8rem 10rem;
  left: calc(var(--path-column) / 2);
  width: 1px;
  background: var(--accent-text);
  content: "";
  opacity: 0.62;
}

.lesson {
  position: relative;
  display: grid;
  grid-template-columns: var(--path-column) minmax(0, 1fr);
  column-gap: clamp(1.5rem, 4vw, 4rem);
  padding-block: clamp(3.75rem, 8vw, 7rem);
  border-top: 1px solid var(--fine-line);
  scroll-margin-top: 2rem;
}

.lesson:first-child {
  border-top-color: var(--ink);
}

.lesson-marker {
  position: relative;
  z-index: 1;
  display: grid;
  width: 2.7rem;
  height: 2.7rem;
  margin: 0 auto;
  place-items: center;
  border: 1px solid var(--accent-text);
  border-radius: 50%;
  background: var(--page-background);
  color: var(--accent-text);
  font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  font-size: 1rem;
  font-variant-numeric: tabular-nums;
}

.lesson-rail {
  position: relative;
  z-index: 1;
  align-self: start;
}

.lesson-rail-label {
  max-width: 9ch;
  margin: 1rem auto 0;
  color: var(--soft-ink);
  font-family: system-ui, sans-serif;
  font-size: 0.72rem;
  line-height: 1.35;
  text-align: center;
}

.lesson-content {
  min-width: 0;
}

.lesson-content h2,
.essay-conclusion h2 {
  max-width: 24ch;
  margin: 0 0 clamp(1.75rem, 4vw, 2.75rem);
  font-size: clamp(2.25rem, 4.5vw, 3.5rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.02;
  text-wrap: balance;
}

.lesson-copy,
.essay-conclusion-copy {
  max-width: 68ch;
  font-family: system-ui, sans-serif;
  font-size: clamp(1rem, 1.15vw, 1.1rem);
  line-height: 1.78;
  overflow-wrap: break-word;
}

.lesson-copy p,
.essay-conclusion-copy p {
  margin: 0;
}

.lesson-copy p + p,
.essay-conclusion-copy p + p {
  margin-top: 1.35em;
}

.essay-conclusion-copy ul {
  margin: 0.75em 0 1.35em;
  padding-left: 1.25em;
}

.essay-conclusion-copy li {
  padding-left: 0.35em;
}

.essay-conclusion-copy li + li {
  margin-top: 0.45em;
}

.essay-conclusion-copy li::marker {
  color: var(--accent-text);
}

.lesson-copy strong,
.essay-conclusion-copy strong {
  color: var(--accent-text);
  font-weight: 700;
}

.essay-figure {
  margin: clamp(2.75rem, 6vw, 4.5rem) 0 0;
  padding-block: clamp(1.5rem, 4vw, 2.5rem);
  border-block: 1px solid var(--ink);
  font-family: system-ui, sans-serif;
}

.essay-figure figcaption {
  max-width: 62ch;
  margin-top: 1.5rem;
  color: var(--soft-ink);
  font-size: 0.82rem;
  line-height: 1.5;
}

.figure-title {
  margin: 0 0 1.75rem;
  font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  font-size: clamp(1.35rem, 2.5vw, 1.8rem);
  font-weight: 400;
}

.system-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: clamp(0.65rem, 2vw, 1.5rem);
}

.system-node {
  min-width: 0;
  padding-block: 1.25rem;
  border-block: 1px solid var(--fine-line);
}

.system-node strong,
.system-node span {
  display: block;
}

.system-node strong {
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.system-node span {
  margin-top: 0.5rem;
  color: var(--soft-ink);
  font-size: 0.82rem;
  line-height: 1.45;
}

.system-arrow {
  position: relative;
  width: clamp(1.75rem, 4vw, 3.5rem);
  height: 1px;
  background: var(--accent-text);
}

.system-arrow::after {
  position: absolute;
  top: -0.22rem;
  right: 0;
  width: 0.42rem;
  height: 0.42rem;
  border-top: 1px solid var(--accent-text);
  border-right: 1px solid var(--accent-text);
  content: "";
  transform: rotate(45deg);
}

.bet-rows {
  display: grid;
  gap: 1.5rem;
}

.bet-row {
  display: grid;
  grid-template-columns: minmax(8rem, 0.7fr) minmax(8rem, 1.5fr) minmax(6rem, 0.65fr);
  align-items: center;
  gap: 1rem;
}

.bet-label,
.bet-result {
  font-size: 0.85rem;
  line-height: 1.4;
}

.bet-result {
  color: var(--soft-ink);
}

.bet-track {
  position: relative;
  height: 1.25rem;
}

.bet-track::before {
  position: absolute;
  top: 50%;
  right: 0;
  left: 0;
  height: 1px;
  background: var(--fine-line);
  content: "";
}

.bet-track::after {
  position: absolute;
  top: calc(50% - 0.3rem);
  left: 0;
  width: 0.6rem;
  height: 0.6rem;
  border: 1px solid currentColor;
  border-radius: 50%;
  background: var(--page-background);
  content: "";
}

.bet-track--lasting::before {
  background: var(--accent-text);
}

.bet-track--lasting::after {
  right: 0;
  left: auto;
  color: var(--accent-text);
}

.bet-track--ended::before {
  right: 34%;
  height: 0;
  border-top: 1px dashed var(--fine-line);
  background: none;
}

.bet-track--ended::after {
  left: 66%;
  color: var(--soft-ink);
}

.contract-path {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: stretch;
  gap: 0.75rem;
}

.contract-step {
  display: grid;
  align-content: center;
  min-height: 7rem;
  padding: 1rem;
  border: 1px solid var(--ink);
  text-align: center;
}

.contract-step strong,
.contract-step span {
  display: block;
}

.contract-step strong {
  font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  font-size: 1.2rem;
  font-weight: 400;
}

.contract-step span {
  margin-top: 0.4rem;
  color: var(--soft-ink);
  font-size: 0.76rem;
  line-height: 1.4;
}

.contract-arrow {
  position: relative;
  align-self: center;
  width: 2rem;
  height: 1px;
  background: var(--accent-text);
}

.contract-arrow::after {
  position: absolute;
  top: -0.22rem;
  right: 0;
  width: 0.42rem;
  height: 0.42rem;
  border-top: 1px solid var(--accent-text);
  border-right: 1px solid var(--accent-text);
  content: "";
  transform: rotate(45deg);
}

.contract-return {
  position: relative;
  width: min(28rem, 82%);
  margin: 1.25rem auto 0;
  padding: 1rem 1.25rem;
  border: 1px dashed var(--accent-text);
  color: var(--accent-text);
  font-size: 0.84rem;
  line-height: 1.45;
  text-align: center;
}

.contract-return::before,
.contract-return::after {
  position: absolute;
  top: -1.3rem;
  height: 1.3rem;
  border-left: 1px dashed var(--accent-text);
  content: "";
}

.contract-return::before {
  left: 12%;
}

.contract-return::after {
  right: 12%;
}

.value-equation {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: clamp(1.25rem, 4vw, 3rem);
}

.equation-fraction {
  display: grid;
  gap: 0.7rem;
  color: var(--accent-text);
  font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  font-size: clamp(1.55rem, 3.5vw, 2.6rem);
  line-height: 1;
  text-align: center;
}

.equation-fraction span:first-child {
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--accent-text);
}

.equation-equals {
  font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  font-size: 2rem;
}

.equation-result {
  font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  font-size: clamp(1.6rem, 3.5vw, 2.7rem);
  line-height: 1.05;
}

.equation-checks {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--fine-line);
  color: var(--soft-ink);
  font-size: 0.82rem;
  line-height: 1.5;
}

.infrastructure-callout {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: clamp(1.5rem, 4vw, 3rem);
  margin-top: clamp(2.75rem, 6vw, 4.5rem);
  padding-block: clamp(1.75rem, 4vw, 3rem);
  border-block: 1px solid var(--ink);
}

.callout-node {
  display: grid;
  width: clamp(4rem, 9vw, 6rem);
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid var(--accent-text);
  border-radius: 50%;
  color: var(--accent-text);
  font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  font-size: clamp(1.4rem, 3vw, 2rem);
}

.infrastructure-callout p {
  max-width: 34ch;
  margin: 0;
  font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  font-size: clamp(1.55rem, 3vw, 2.35rem);
  line-height: 1.15;
}

.essay-conclusion {
  position: relative;
  display: grid;
  grid-template-columns: var(--path-column) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  padding-block: clamp(4rem, 10vw, 8rem);
  border-top: 1px solid var(--ink);
}

.conclusion-signal {
  position: relative;
  z-index: 1;
  width: 2.7rem;
  height: 2.7rem;
  margin-inline: auto;
  border: 1px solid var(--accent-text);
  border-radius: 50%;
  background: var(--accent-text);
}

.essay-back-link {
  display: inline-block;
  margin-top: 2.5rem;
  color: var(--accent-text);
  font-family: system-ui, sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
}

.essay-index-main {
  min-height: min(34rem, 55vh);
}

.essay-list {
  margin: clamp(3rem, 7vw, 5rem) 0 0;
  padding: 0;
  border-top: 1px solid var(--ink);
  list-style: none;
}

.essay-list a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.5rem;
  padding-block: clamp(1.5rem, 4vw, 2.25rem);
  text-decoration: none;
}

.essay-list-title {
  display: block;
  font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  font-size: clamp(1.5rem, 3vw, 2.15rem);
  line-height: 1.1;
}

.essay-list-description,
.essay-list-meta {
  font-family: system-ui, sans-serif;
  font-size: 0.85rem;
  line-height: 1.5;
}

.essay-list-description {
  display: block;
  max-width: 56ch;
  margin-top: 0.75rem;
  color: var(--soft-ink);
}

.essay-list-meta {
  color: var(--accent-text);
  white-space: nowrap;
}

.essay-list a:hover .essay-list-title,
.essay-list a:focus-visible .essay-list-title {
  color: var(--accent-text);
}

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

@media (prefers-reduced-motion: no-preference) {
  .hero-signal .signal-path {
    stroke-dasharray: 1;
    animation: unroll-signal 1.4s cubic-bezier(0.22, 1, 0.36, 1) both;
  }

  @keyframes unroll-signal {
    from {
      stroke-dashoffset: 1;
    }

    to {
      stroke-dashoffset: 0;
    }
  }
}

@media (max-width: 58rem) {
  .essay-hero {
    grid-template-columns: 1fr;
    grid-template-areas:
      "title"
      "lead"
      "product"
      "visual"
      "context"
      "meta";
    min-height: 0;
  }

  .essay-title {
    max-width: 14ch;
  }

  .hero-signal {
    max-width: 24rem;
    margin-block: 1.5rem 0.5rem;
  }

  .lesson-index {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    row-gap: 1.5rem;
  }

  .lesson-index a:nth-child(4) {
    padding-left: 0;
    border-left: 0;
  }
}

@media (max-width: 44rem) {
  .essay-hero {
    padding-block: 2.5rem 3.5rem;
  }

  .essay-title {
    font-size: clamp(2.85rem, 13vw, 4.5rem);
    line-height: 0.95;
  }

  .hero-signal .signal-count {
    font-size: 4rem;
  }

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

  .lesson-index a:nth-child(3),
  .lesson-index a:nth-child(5) {
    padding-left: 0;
    border-left: 0;
  }

  .lesson-index a:nth-child(4) {
    padding-left: clamp(0.75rem, 2vw, 1.75rem);
    border-left: 1px solid var(--fine-line);
  }

  .essay-body {
    --path-column: 2rem;
  }

  .essay-body::before {
    left: 0.8rem;
  }

  .lesson,
  .essay-conclusion {
    column-gap: 1rem;
  }

  .lesson-marker,
  .conclusion-signal {
    width: 1.65rem;
    height: 1.65rem;
    margin-left: 0;
    font-size: 0.72rem;
  }

  .lesson-rail-label {
    display: none;
  }

  .lesson-content h2,
  .essay-conclusion h2 {
    font-size: clamp(2rem, 10vw, 2.8rem);
  }

  .system-flow,
  .contract-path,
  .value-equation {
    grid-template-columns: 1fr;
  }

  .system-arrow {
    width: 1px;
    height: 2rem;
    margin-inline: 1.25rem;
  }

  .system-arrow::after {
    top: auto;
    right: -0.2rem;
    bottom: 0;
    transform: rotate(135deg);
  }

  .bet-row {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }

  .bet-track {
    width: 100%;
  }

  .contract-arrow {
    justify-self: center;
    transform: rotate(90deg);
  }

  .contract-return {
    width: 100%;
  }

  .equation-equals {
    justify-self: center;
  }

  .equation-result {
    text-align: center;
  }

  .equation-checks {
    grid-template-columns: 1fr;
  }

  .infrastructure-callout {
    grid-template-columns: 1fr;
  }

  .essay-list a {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }
}