.page-about {
  --about-blue: #0047A0;
  --about-gold: #B8860B;
  --about-paper: #F2ECE0;
  --about-paper-light: #FBF8F1;
  --about-ink: #1A1A1A;
  --about-ink-soft: #404040;
  --about-line: #E5DCCE;
  --about-white: #FFFFFF;
  background: var(--about-paper);
  padding-bottom: 3rem;
}

@media (min-width: 900px) {
  .page-about {
    padding-bottom: 5rem;
  }
}

.page-about__breadcrumb {
  margin: 1.5rem 0 1rem;
  font-size: 0.875rem;
}

.page-about__breadcrumb ol {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.25rem 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--about-ink-soft);
}

.page-about__breadcrumb a {
  color: var(--about-blue);
  text-decoration: none;
}

.page-about__breadcrumb a:hover,
.page-about__breadcrumb a:focus-visible {
  text-decoration: underline;
}

.page-about__breadcrumb li + li::before {
  content: '/';
  margin-right: 0.5rem;
  color: var(--about-gold);
}

.page-about__breadcrumb li[aria-current="page"] {
  color: var(--about-ink-soft);
}

.page-about__masthead {
  margin-bottom: 2.5rem;
}

.page-about__masthead-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
  background: radial-gradient(ellipse at 90% 0%, rgba(184, 134, 11, 0.1), transparent 42%), var(--about-paper-light);
  border: 4px solid var(--about-blue);
  box-shadow: var(--shadow-md);
  padding: 2.25rem 1.5rem;
}

@media (min-width: 900px) {
  .page-about__masthead-inner {
    grid-template-columns: 1.15fr 0.85fr;
    padding: 3.5rem 3rem;
    gap: 3rem;
  }
}

.page-about__masthead-inner::before,
.page-about__masthead-inner::after {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  z-index: 2;
  pointer-events: none;
}

.page-about__masthead-inner::before {
  top: -7px;
  left: -7px;
  border-top: 3px solid var(--about-gold);
  border-left: 3px solid var(--about-gold);
}

.page-about__masthead-inner::after {
  bottom: -7px;
  right: -7px;
  border-bottom: 3px solid var(--about-gold);
  border-right: 3px solid var(--about-gold);
}

.page-about__kicker {
  display: inline-block;
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--about-blue);
  background: rgba(0, 71, 160, 0.08);
  padding: 0.3rem 0.7rem;
  margin: 0 0 1rem;
}

.page-about__masthead h1 {
  margin: 0 0 1.25rem;
  font-family: var(--font-headings);
  font-size: clamp(2.1rem, 7vw, 3rem);
  line-height: 1.12;
  color: var(--about-ink);
}

.page-about__lead {
  margin: 0 0 1.75rem;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--about-ink-soft);
  max-width: 34em;
}

.page-about__masthead-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-about__masthead-art {
  min-height: 200px;
}

.page-about__skyline {
  display: block;
  width: 100%;
  height: auto;
  max-height: 320px;
  background: var(--about-paper);
  border: 1px solid var(--about-line);
}

.page-about__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: start;
}

@media (min-width: 900px) {
  .page-about__layout {
    grid-template-columns: 240px 1fr;
    gap: 2.5rem;
  }
}

.page-about__index {
  background: var(--about-paper-light);
  border: 1px solid var(--about-line);
  padding: 1.25rem 1.25rem 1rem;
}

.page-about__index-label {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--about-blue);
  margin: 0 0 1rem;
  font-weight: 600;
}

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

.page-about__index-link {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.6rem 0;
  border-bottom: 1px dotted var(--about-line);
  color: var(--about-ink-soft);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: color 0.2s ease, padding-left 0.2s ease, background 0.2s ease;
}

.page-about__index-link:last-child {
  border-bottom: none;
}

.page-about__index-link:hover,
.page-about__index-link:focus-visible,
.page-about__index-link.is-active {
  color: var(--about-blue);
  padding-left: 0.35rem;
}

.page-about__index-num {
  font-family: var(--font-headings);
  font-size: 0.875rem;
  color: var(--about-gold);
}

.page-about__index-link.is-active .page-about__index-num {
  color: var(--about-blue);
}

.page-about__index-foot {
  margin: 1rem 0 0;
  font-size: 0.75rem;
  color: var(--about-ink-soft);
  border-top: 1px solid var(--about-line);
  padding-top: 0.75rem;
}

@media (min-width: 900px) {
  .page-about__index {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    align-self: start;
  }
}

@media (max-width: 899px) {
  .page-about__index {
    border-bottom: 3px solid var(--about-gold);
    overflow-x: auto;
    padding: 0.9rem 1rem;
  }

  .page-about__index-label,
  .page-about__index-foot {
    display: none;
  }

  .page-about__index-list {
    display: flex;
    gap: 0.5rem;
    min-width: max-content;
  }

  .page-about__index-link {
    padding: 0.35rem 0.75rem;
    border-bottom: none;
    background: var(--about-paper);
    border-radius: 2px;
    white-space: nowrap;
  }

  .page-about__index-link:hover,
  .page-about__index-link:focus-visible,
  .page-about__index-link.is-active {
    background: var(--about-blue);
    color: var(--about-white);
    padding-left: 0.75rem;
  }

  .page-about__index-link.is-active .page-about__index-num {
    color: var(--about-white);
  }
}

.page-about__articles {
  display: grid;
  gap: 1.5rem;
}

.page-about__section {
  position: relative;
  background: var(--about-paper-light);
  border: 1px solid var(--about-line);
  border-left: 4px solid var(--about-blue);
  box-shadow: var(--shadow-sm);
  padding: 2rem 1.25rem 1.75rem;
  scroll-margin-top: calc(var(--header-h) + 16px);
}

@media (min-width: 900px) {
  .page-about__section {
    padding: 3rem 2.5rem 2.5rem;
  }
}

.page-about__section-no {
  position: absolute;
  top: 0.75rem;
  right: 1rem;
  font-family: var(--font-headings);
  font-size: 3.5rem;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(0, 71, 160, 0.28);
  pointer-events: none;
  user-select: none;
}

@media (min-width: 900px) {
  .page-about__section-no {
    font-size: 5rem;
    top: 1rem;
    right: 1.5rem;
  }
}

.page-about__section-meta {
  margin-bottom: 0.75rem;
}

.page-about__section h2 {
  margin: 0 0 0.5rem;
  padding-right: 2.5rem;
  font-family: var(--font-headings);
  font-size: 2rem;
  line-height: 1.2;
  color: var(--about-ink);
}

@media (min-width: 900px) {
  .page-about__section h2 {
    font-size: 2.25rem;
    padding-right: 4rem;
  }
}

.page-about__section-intro {
  margin: 0 0 1.5rem;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--about-blue);
  font-weight: 500;
}

.page-about__origin-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 900px) {
  .page-about__origin-grid {
    grid-template-columns: 5fr 6fr;
    align-items: center;
    gap: 2.5rem;
  }
}

.page-about__figure,
.page-about__timeline-figure,
.page-about__capability-figure {
  margin: 0;
}

.page-about__figure img,
.page-about__timeline-figure img,
.page-about__capability-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--about-paper);
}

.page-about__figure img {
  aspect-ratio: 4 / 3;
}

.page-about__timeline-figure img {
  aspect-ratio: 3 / 2;
}

.page-about__capability-figure img {
  aspect-ratio: 1 / 1;
}

.page-about__figure figcaption,
.page-about__timeline-figure figcaption,
.page-about__capability-figure figcaption {
  margin-top: 0.625rem;
  font-size: 0.8125rem;
  color: var(--about-ink-soft);
  border-left: 2px solid var(--about-gold);
  padding-left: 0.75rem;
}

.page-about__origin-copy p {
  margin: 0 0 1rem;
  line-height: 1.85;
  color: var(--about-ink-soft);
}

.page-about__quote {
  margin: 1.5rem 0 0;
  padding: 1rem 1.25rem;
  background: rgba(184, 134, 11, 0.08);
  border-left: 3px solid var(--about-gold);
  font-family: var(--font-headings);
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--about-ink);
}

.page-about__milestone-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 960px) {
  .page-about__milestone-grid {
    grid-template-columns: 7fr 4fr;
    align-items: start;
    gap: 2rem;
  }
}

.page-about__timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about__timeline::before {
  content: '';
  position: absolute;
  left: 17px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: var(--about-line);
}

.page-about__timeline-item {
  position: relative;
  padding-left: 2.75rem;
  padding-bottom: 1.75rem;
}

.page-about__timeline-item:last-child {
  padding-bottom: 0;
}

.page-about__timeline-dot {
  position: absolute;
  left: 11px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--about-gold);
  border: 3px solid var(--about-paper-light);
  box-shadow: 0 0 0 1px rgba(184, 134, 11, 0.35);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.page-about__timeline-item:hover .page-about__timeline-dot,
.page-about__timeline-item:focus-within .page-about__timeline-dot {
  transform: scale(1.25);
  box-shadow: 0 0 0 4px rgba(184, 134, 11, 0.28);
}

.page-about__timeline-body {
  background: var(--about-paper);
  border: 1px solid var(--about-line);
  padding: 1rem 1.25rem;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.page-about__timeline-item:hover .page-about__timeline-body,
.page-about__timeline-item:focus-within .page-about__timeline-body {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.page-about__timeline-label {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--about-blue);
  margin: 0 0 0.25rem;
  font-weight: 600;
}

.page-about__timeline-body h3 {
  margin: 0 0 0.375rem;
  font-family: var(--font-headings);
  font-size: 1.25rem;
  color: var(--about-ink);
}

.page-about__timeline-body p {
  margin: 0;
  line-height: 1.7;
  font-size: 0.925rem;
  color: var(--about-ink-soft);
}

.page-about__section--narrow {
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

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

@media (min-width: 700px) {
  .page-about__values {
    grid-template-columns: repeat(3, 1fr);
  }
}

.page-about__value {
  background: var(--about-paper);
  border-top: 3px solid var(--about-gold);
  padding: 1.25rem 1.25rem 1.5rem;
}

.page-about__value-no {
  display: inline-block;
  font-family: var(--font-headings);
  font-size: 0.9375rem;
  color: var(--about-gold);
  margin-bottom: 0.5rem;
}

.page-about__value h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-headings);
  font-size: 1.375rem;
  color: var(--about-ink);
}

.page-about__value p {
  margin: 0;
  font-size: 0.925rem;
  line-height: 1.75;
  color: var(--about-ink-soft);
}

.page-about__capability-note {
  background: var(--about-paper);
  border-left: 3px solid var(--about-blue);
  padding: 1rem 1.25rem;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--about-ink-soft);
  margin: 0 0 1.5rem;
}

.page-about__capability-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 900px) {
  .page-about__capability-grid {
    grid-template-columns: 1fr 340px;
    align-items: center;
    gap: 2rem;
  }
}

.page-about__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin: 0;
}

@media (min-width: 700px) {
  .page-about__stats {
    grid-template-columns: repeat(3, 1fr);
  }
}

.page-about__stat {
  background: var(--about-paper);
  border-top: 3px solid var(--about-blue);
  padding: 1rem 1rem 1.1rem;
}

.page-about__stat dt {
  font-size: 0.8125rem;
  color: var(--about-ink-soft);
  margin-bottom: 0.375rem;
}

.page-about__stat dd {
  margin: 0;
  font-family: var(--font-headings);
  font-size: 2rem;
  line-height: 1.1;
  color: var(--about-blue);
}

.page-about__ecosystem {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 700px) {
  .page-about__ecosystem {
    grid-template-columns: repeat(3, 1fr);
  }
}

.page-about__ecosystem-item {
  border: 1px solid var(--about-line);
  background: var(--about-paper);
  padding: 1.25rem 1.25rem 1.5rem;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.page-about__ecosystem-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.page-about__ecosystem-no {
  display: inline-block;
  font-family: var(--font-headings);
  font-size: 0.9375rem;
  color: var(--about-blue);
  border: 1px solid rgba(0, 71, 160, 0.3);
  padding: 0.15rem 0.5rem;
  margin-bottom: 0.75rem;
}

.page-about__ecosystem-item h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-headings);
  font-size: 1.25rem;
  color: var(--about-ink);
}

.page-about__ecosystem-item p {
  margin: 0;
  font-size: 0.925rem;
  line-height: 1.75;
  color: var(--about-ink-soft);
}

.page-about__join {
  background: var(--about-blue);
  color: var(--about-white);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
}

@media (min-width: 700px) {
  .page-about__join {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 1.75rem 2rem;
  }
}

.page-about__join p {
  margin: 0;
  max-width: 32em;
  line-height: 1.7;
}

.page-about__join-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-about__join .btn {
  background: var(--about-gold);
  border-color: var(--about-gold);
  color: var(--about-white);
}

.page-about__join .btn--ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.7);
  color: var(--about-white);
}

.page-about__join .btn:hover,
.page-about__join .btn:focus-visible,
.page-about__join .btn--ghost:hover,
.page-about__join .btn--ghost:focus-visible {
  filter: brightness(1.08);
}