.page-about {
  --about-gap: clamp(1rem, 3vw, 2rem);
  --about-shadow: 8px 8px 0 rgba(19, 32, 51, 0.85);
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(2rem, 6vw, 4rem) 0 clamp(2rem, 5vw, 3.5rem);
  background:
    radial-gradient(circle at 84% 8%, rgba(25, 247, 193, 0.16), transparent 56%),
    radial-gradient(circle at 6% 92%, rgba(255, 176, 32, 0.12), transparent 52%),
    var(--ink);
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--home), var(--away));
  opacity: 0.75;
}

.page-about .hero-grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: center;
}

.page-about .hero-copy {
  min-width: 0;
}

.page-about .hero-copy h1 {
  margin: 0.6rem 0 1rem;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.9rem, 7vw, 3.3rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-about .hero-lede {
  margin: 0;
  max-width: 36em;
  font-size: clamp(1rem, 2.2vw, 1.125rem);
  line-height: 1.78;
  color: var(--muted);
}

.page-about .hero-facts {
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}

.page-about .hero-facts li {
  border: 1px solid var(--line);
  background: rgba(14, 22, 38, 0.72);
  padding: 0.6rem 0.8rem;
}

.page-about .fact-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  color: var(--home);
}

.page-about .fact-label {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.75rem;
  color: var(--muted);
}

.page-about .hero-figure {
  margin: 0;
  border: 1px solid var(--line);
  box-shadow: var(--about-shadow);
  background: var(--panel-2);
  overflow: hidden;
}

.page-about .hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-shell {
  display: grid;
  gap: var(--about-gap);
  padding: clamp(1.75rem, 4vw, 3rem) 0 clamp(2.5rem, 6vw, 4.5rem);
}

.page-about .chapter-index {
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 0.85rem;
  min-width: 0;
}

.page-about .chapter-title {
  margin: 0 0 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-about .chapter-list {
  list-style: none;
  margin: 0;
  padding: 0 0 0.2rem;
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .chapter-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  white-space: nowrap;
  padding: 0.4rem 0.65rem;
  border: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--speed) ease, border-color var(--speed) ease, background-color var(--speed) ease;
}

.page-about .chapter-link:hover,
.page-about .chapter-link:focus-visible {
  color: var(--home);
  border-color: var(--home);
  background: rgba(25, 247, 193, 0.08);
}

.page-about .chapter-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--home);
}

.page-about .about-main {
  min-width: 0;
}

.page-about .about-section {
  margin-bottom: clamp(2.5rem, 6vw, 4rem);
  scroll-margin-top: 5.5rem;
}

.page-about .about-section:last-child {
  margin-bottom: 0;
}

.page-about .sec-head {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding-bottom: 0.7rem;
  margin-bottom: 1.2rem;
  border-bottom: 1px solid var(--line);
}

.page-about .sec-num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  color: var(--home);
}

.page-about .sec-head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.25rem, 3.4vw, 1.85rem);
  line-height: 1.28;
  letter-spacing: -0.015em;
  color: var(--text);
}

.page-about .prose {
  max-width: 68ch;
  line-height: 1.82;
  color: var(--text);
}

.page-about .prose p {
  margin: 0 0 1rem;
}

.page-about .prose p:last-child {
  margin-bottom: 0;
}

.page-about .pull-quote {
  margin: 1.4rem 0 0;
  padding: 0.95rem 1.1rem;
  border-left: 3px solid var(--away);
  background: var(--panel);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.02rem;
  line-height: 1.65;
  color: var(--text);
}

.page-about .flow-svg {
  display: block;
  width: 100%;
  height: auto;
  margin: 1.5rem 0 1.2rem;
}

.page-about .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
  grid-template-columns: 1fr;
}

.page-about .step {
  border: 1px solid var(--line);
  border-top: 3px solid var(--home);
  background: var(--panel);
  padding: 1rem 1.05rem;
}

.page-about .step:nth-child(even) {
  border-top-color: var(--away);
}

.page-about .step-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-about .step h3 {
  margin: 0.35rem 0 0.45rem;
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
}

.page-about .step p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--muted);
}

.page-about .workflow-figure {
  margin: 1.25rem 0 0;
  border: 1px solid var(--line);
  background: var(--panel-2);
  padding: 0.6rem;
}

.page-about .workflow-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .workflow-figure figcaption {
  margin-top: 0.6rem;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--muted);
}

.page-about .analysis-grid {
  display: grid;
  gap: 1.25rem;
}

.page-about .radar-box {
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 50% 38%, rgba(25, 247, 193, 0.08), transparent 66%),
    var(--panel);
  padding: 1rem;
}

.page-about .radar-svg {
  display: block;
  width: 100%;
  max-width: 320px;
  height: auto;
  margin: 0 auto;
}

.page-about .legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 0.85rem;
  font-size: 0.78rem;
  color: var(--muted);
}

.page-about .legend-home,
.page-about .legend-away {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.page-about .legend-home::before,
.page-about .legend-away::before {
  content: "";
  width: 0.7rem;
  height: 0.7rem;
  border: 1px solid currentColor;
}

.page-about .legend-home::before {
  background: rgba(25, 247, 193, 0.35);
  color: var(--home);
}

.page-about .legend-away::before {
  background: rgba(255, 176, 32, 0.35);
  color: var(--away);
}

.page-about .analysis-copy {
  min-width: 0;
}

.page-about .metric-list {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.4rem 0.8rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.page-about .metric-list li {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  border-bottom: 1px dashed var(--line);
  padding-bottom: 0.3rem;
}

.page-about .metric-list li::before {
  content: "";
  width: 0.4rem;
  height: 0.4rem;
  background: var(--home);
  flex: none;
}

.page-about .metric-list li:nth-child(even)::before {
  background: var(--away);
}

.page-about .analysis-note {
  margin: 1.1rem 0 0;
  padding: 0.8rem 0.95rem;
  background: var(--panel-2);
  border-left: 3px solid var(--away);
  font-size: 0.88rem;
  line-height: 1.72;
  color: var(--text);
}

.page-about .timeline-intro {
  margin-bottom: 1.3rem;
}

.page-about .timeline-intro p {
  margin: 0 0 1rem;
  max-width: 62ch;
  line-height: 1.78;
  color: var(--muted);
}

.page-about .timeline-filter {
  margin-bottom: 0;
}

.page-about .milestone-list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 1.75rem;
  position: relative;
  display: grid;
  gap: 0.75rem;
}

.page-about .milestone-list::before {
  content: "";
  position: absolute;
  left: 0.45rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background: linear-gradient(180deg, var(--home), var(--away));
}

.page-about .milestone {
  position: relative;
  min-width: 0;
}

.page-about .milestone::before {
  content: "";
  position: absolute;
  left: -1.55rem;
  top: 1rem;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--home);
}

.page-about .milestone:nth-child(even)::before {
  border-color: var(--away);
}

.page-about .milestone details {
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-about .milestone summary {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.75rem 0.9rem;
  cursor: pointer;
  list-style: none;
}

.page-about .milestone summary::-webkit-details-marker {
  display: none;
}

.page-about .milestone summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--muted);
}

.page-about .milestone details[open] summary::after {
  content: "–";
  color: var(--home);
}

.page-about .milestone-year {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  color: var(--away);
  flex: none;
}

.page-about .milestone-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.96rem;
  line-height: 1.5;
  color: var(--text);
}

.page-about .milestone details p {
  margin: 0;
  padding: 0 0.9rem 0.9rem;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .timeline-figure {
  margin: 1.25rem 0 0;
  border: 1px solid var(--line);
  box-shadow: var(--about-shadow);
  overflow: hidden;
}

.page-about .timeline-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  margin-top: 1.25rem;
}

.page-about .team-card {
  padding: 1rem 1.05rem;
  border-left: 3px solid var(--home);
}

.page-about .team-card:nth-child(even) {
  border-left-color: var(--away);
}

.page-about .team-count {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  letter-spacing: 0.02em;
  color: var(--home);
}

.page-about .team-card:nth-child(even) .team-count {
  color: var(--away);
}

.page-about .team-card h3 {
  margin: 0.3rem 0 0.45rem;
  font-family: var(--font-head);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text);
}

.page-about .team-card p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.72;
  color: var(--muted);
}

.page-about .team-rhythm {
  margin: 1.25rem 0 0;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  background: var(--panel-2);
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--text);
}

.page-about .stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
  margin-bottom: 1.35rem;
}

.page-about .stat {
  border: 1px solid var(--line);
  background: var(--panel-2);
  padding: 0.85rem 0.95rem;
}

.page-about .stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.45rem;
  letter-spacing: 0.02em;
  color: var(--text);
}

.page-about .stat:nth-child(3n + 1) .stat-num {
  color: var(--home);
}

.page-about .stat:nth-child(3n + 2) .stat-num {
  color: var(--away);
}

.page-about .stat-label {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--muted);
}

.page-about .coverage-copy {
  max-width: 66ch;
}

.page-about .next-links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.7rem;
  margin-top: 1.5rem;
}

.page-about .next-link {
  display: block;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  background: var(--panel);
  text-decoration: none;
  transition: border-color var(--speed) ease, transform var(--speed) ease;
}

.page-about .next-link--home {
  border-left: 3px solid var(--home);
}

.page-about .next-link--away {
  border-left: 3px solid var(--away);
}

.page-about .next-link:hover,
.page-about .next-link:focus-visible {
  border-color: var(--home);
  transform: translateY(-2px);
}

.page-about .next-label {
  display: block;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--text);
}

.page-about .next-desc {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--muted);
}

@media (min-width: 640px) {
  .page-about .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .team-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .stat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .next-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .metric-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .hero-grid {
    grid-template-columns: 1.05fr 0.95fr;
  }

  .page-about .about-shell {
    grid-template-columns: 230px minmax(0, 1fr);
    gap: clamp(1.75rem, 4vw, 3rem);
    align-items: start;
  }

  .page-about .chapter-index {
    position: sticky;
    top: 5.5rem;
  }

  .page-about .chapter-list {
    flex-direction: column;
    overflow: visible;
  }

  .page-about .chapter-link {
    width: 100%;
  }

  .page-about .steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .analysis-grid {
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 1.75rem;
    align-items: start;
  }

  .page-about .stat-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .chapter-link,
  .page-about .next-link {
    transition: none;
  }

  .page-about .next-link:hover,
  .page-about .next-link:focus-visible {
    transform: none;
  }
}
<<<END>>>