.page-about {
  --about-pad-x: clamp(1.25rem, 3vw, 3rem);
  --about-pad-y: clamp(2.5rem, 6vw, 4rem);
}

.page-about .page-about__hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-height) + 2rem) var(--content-pad) 3rem;
  background: linear-gradient(135deg, var(--space-blue) 0%, var(--sky-blue) 60%, #0d2748 100%);
  color: #fff;
  border-bottom: 4px solid var(--gold);
}

.page-about .page-about__hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 65%;
  height: 100%;
  background: linear-gradient(135deg, transparent 35%, rgba(212, 175, 55, 0.06) 60%, rgba(212, 175, 55, 0.14) 100%);
  clip-path: polygon(25% 0, 100% 0, 100% 100%, 0% 100%);
  pointer-events: none;
}

.page-about .page-about__breadcrumb {
  position: relative;
  z-index: 1;
  max-width: var(--content-max);
  margin: 0 auto 2rem;
  font-size: 0.875rem;
}

.page-about .page-about__breadcrumb a {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  transition: color 0.3s;
}

.page-about .page-about__breadcrumb a:hover,
.page-about .page-about__breadcrumb a:focus-visible {
  color: var(--gold-light);
}

.page-about .page-about__breadcrumb .breadcrumb__item[aria-current="page"] {
  color: var(--gold);
}

.page-about .page-about__hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--content-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-about .page-about__hero-title {
  margin: 0.5rem 0 1rem;
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.page-about .page-about__hero-lead {
  max-width: 42em;
  margin: 0 0 1.5rem;
  font-size: 1.0625rem;
  line-height: var(--leading);
  color: rgba(255, 255, 255, 0.8);
}

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

.page-about .page-about__hero-actions .btn {
  border-radius: 0;
}

.page-about .page-about__hero-actions .btn-secondary {
  color: #fff;
  background: transparent;
  border-color: rgba(255, 255, 255, 0.6);
}

.page-about .page-about__hero-index {
  align-self: end;
  padding: 1.25rem 1.5rem;
  background: rgba(16, 42, 76, 0.72);
  border: 1px solid rgba(212, 175, 55, 0.35);
  border-right: 4px solid var(--gold);
}

.page-about .page-about__hero-index-title {
  display: block;
  margin-bottom: 0.75rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-light);
}

.page-about .page-about__hero-index ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .page-about__hero-index li + li {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.page-about .page-about__hero-index a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0;
  color: #fff;
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.3s, padding-left 0.3s;
}

.page-about .page-about__hero-index a:hover,
.page-about .page-about__hero-index a:focus-visible {
  color: var(--gold-light);
  padding-left: 0.25rem;
}

.page-about .page-about__hero-index a span {
  font-weight: 800;
  font-size: 0.8125rem;
  font-variant-numeric: tabular-nums;
  color: var(--gold);
}

.page-about .page-about__layout {
  position: relative;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 3rem var(--content-pad) 4.5rem;
  display: flex;
  gap: 2.5rem;
  align-items: flex-start;
}

.page-about .page-about__side-nav {
  display: none;
  width: 190px;
  flex-shrink: 0;
  position: sticky;
  top: calc(var(--header-height) + 1.5rem);
  margin-top: 0.25rem;
  padding-left: 1rem;
  border-left: 2px solid var(--gold);
}

.page-about .page-about__side-nav-title {
  display: block;
  margin-bottom: 0.75rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-about .page-about__side-nav a {
  display: block;
  padding: 0.45rem 0;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 600;
  transition: color 0.3s;
}

.page-about .page-about__side-nav a:hover,
.page-about .page-about__side-nav a:focus-visible {
  color: var(--space-blue);
}

.page-about .page-about__side-nav a::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 5px;
  margin-right: 0.5rem;
  background: var(--gold);
  transform: rotate(45deg);
  vertical-align: 1px;
}

.page-about .page-about__content {
  flex: 1;
  min-width: 0;
  padding: 2.25rem var(--about-pad-x);
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: 0 8px 40px rgba(11, 29, 58, 0.05);
}

.page-about .page-about__section {
  scroll-margin-top: calc(var(--header-height) + 1.5rem);
}

.page-about .page-about__section + .page-about__section {
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}

.page-about .page-about__story-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-about .page-about__story-copy p {
  color: #3d4c5c;
  font-size: 0.9375rem;
}

.page-about .page-about__story-copy .link-arrow {
  display: inline-block;
  margin-top: 0.5rem;
}

.page-about .page-about__story-media {
  position: relative;
  padding: 12px;
}

.page-about .page-about__story-media::before,
.page-about .page-about__story-media::after {
  content: "";
  position: absolute;
  width: 36px;
  height: 36px;
  z-index: 1;
  pointer-events: none;
}

.page-about .page-about__story-media::before {
  top: 0;
  right: 0;
  border-top: 2px solid var(--gold);
  border-right: 2px solid var(--gold);
}

.page-about .page-about__story-media::after {
  bottom: 0;
  left: 0;
  border-bottom: 2px solid var(--gold);
  border-left: 2px solid var(--gold);
}

.page-about .page-about__story-media img {
  position: relative;
  z-index: 0;
}

.page-about .page-about__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  box-shadow: 0 16px 40px rgba(11, 29, 58, 0.14);
}

.page-about .page-about__milestones {
  margin-left: calc(-1 * var(--about-pad-x));
  margin-right: calc(-1 * var(--about-pad-x));
  padding: 2.5rem var(--about-pad-x);
  background: var(--space-blue);
  color: #fff;
}

.page-about .page-about__milestones .section-head h2 {
  color: #fff;
}

.page-about .page-about__timeline {
  position: relative;
  margin-top: 1.5rem;
  padding-left: 2rem;
}

.page-about .page-about__timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--gold), rgba(212, 175, 55, 0.25));
}

.page-about .page-about__timeline-item {
  position: relative;
  margin-bottom: 1.75rem;
}

.page-about .page-about__timeline-marker {
  position: absolute;
  left: calc(-2rem + 1px);
  top: 1.5rem;
  width: 14px;
  height: 14px;
  background: var(--space-blue);
  border: 3px solid var(--gold);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.15);
}

.page-about .page-about__timeline-card {
  padding: 1.25rem 1.4rem;
  background: var(--sky-blue);
  border-left: 3px solid var(--gold);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-about .page-about__timeline-card h3 {
  margin: 0.25rem 0 0.5rem;
  color: #fff;
  font-size: 1.125rem;
  font-weight: 700;
}

.page-about .page-about__timeline-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.page-about .page-about__timeline-card .meta-tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  background: transparent;
  border: 1px solid rgba(212, 175, 55, 0.7);
  color: var(--gold-light);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.page-about .page-about__tech-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.25rem;
  align-items: start;
}

.page-about .page-about__tech-item {
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}

.page-about .page-about__tech-item:first-child {
  padding-top: 0;
}

.page-about .page-about__tech-item h3 {
  position: relative;
  margin-bottom: 0.375rem;
  padding-left: 1.25rem;
  font-size: 1.0625rem;
  font-weight: 700;
}

.page-about .page-about__tech-item h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.42em;
  width: 7px;
  height: 7px;
  background: var(--gold);
  transform: rotate(45deg);
}

.page-about .page-about__tech-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9375rem;
}

.page-about .page-about__tech-media {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.page-about .page-about__tech-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: var(--space-blue);
  border-left: 3px solid var(--gold);
}

.page-about .page-about__tech-stat {
  padding: 1rem 0.75rem;
  text-align: center;
  color: #fff;
}

.page-about .page-about__tech-stat + .page-about__tech-stat {
  border-left: 1px solid rgba(255, 255, 255, 0.12);
}

.page-about .page-about__tech-stat strong {
  display: block;
  font-size: 1.375rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--gold-light);
}

.page-about .page-about__tech-stat span {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.75);
}

.page-about .page-about__credentials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.25rem;
  align-items: start;
}

.page-about .page-about__credentials-tabs-bar {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1.25rem;
  border-bottom: 2px solid var(--space-blue);
}

.page-about .page-about__credentials-tabs-bar [role="tab"] {
  appearance: none;
  margin-bottom: -2px;
  padding: 0.7rem 0.9rem;
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  font-family: var(--font);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.3s, border-color 0.3s;
}

.page-about .page-about__credentials-tabs-bar [role="tab"][aria-selected="true"],
.page-about .page-about__credentials-tabs-bar [role="tab"]:hover,
.page-about .page-about__credentials-tabs-bar [role="tab"]:focus-visible {
  color: var(--space-blue);
  border-bottom-color: var(--gold);
}

.page-about .page-about__credential-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 0.75rem;
  padding: 1rem;
  background: #fff;
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold);
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.page-about .page-about__credential-item:hover {
  transform: translateX(4px);
  border-color: rgba(212, 175, 55, 0.5);
  box-shadow: 0 6px 20px rgba(11, 29, 58, 0.08);
}

.page-about .page-about__credential-icon {
  color: var(--gold);
  font-size: 1.25rem;
  line-height: 1.4;
}

.page-about .page-about__credential-item h3 {
  margin-bottom: 0.25rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
}

.page-about .page-about__credential-item p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--muted);
}

.page-about .page-about__credentials-media img {
  max-width: 100%;
}

.page-about .page-about__ecosystem-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.25rem;
  align-items: center;
}

.page-about .page-about__ecosystem-card {
  padding: 2rem 1.75rem;
  background: var(--space-blue);
  color: #fff;
  border-right: 4px solid var(--gold);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

.page-about .page-about__ecosystem-num {
  margin-bottom: 0.25rem;
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1;
  color: var(--gold);
}

.page-about .page-about__ecosystem-card h3 {
  margin-bottom: 1.25rem;
  color: #fff;
  font-size: 1.125rem;
  font-weight: 700;
}

.page-about .page-about__ecosystem-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
  columns: 2;
  column-gap: 1.75rem;
}

.page-about .page-about__ecosystem-card li {
  break-inside: avoid;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.9375rem;
}

.page-about .page-about__ecosystem-card li::before {
  content: "▪";
  margin-right: 0.5rem;
  color: var(--gold);
}

.page-about .page-about__ecosystem-copy p {
  color: #3d4c5c;
  font-size: 0.9375rem;
}

.page-about .page-about__notice {
  margin-top: 1.5rem;
  padding: 0.75rem 1rem;
  background: rgba(212, 175, 55, 0.14);
  border-left: 3px solid var(--gold);
  font-size: 0.875rem;
  color: var(--ink);
}

.page-about .page-about__closing {
  padding: 3.5rem var(--content-pad);
  background: linear-gradient(135deg, var(--space-blue) 0%, var(--sky-blue) 65%, #0d2748 100%);
  color: #fff;
}

.page-about .page-about__closing-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

.page-about .page-about__closing-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.page-about .page-about__closing .stat {
  padding: 1rem 0.5rem;
  text-align: center;
  background: rgba(16, 42, 76, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.page-about .page-about__closing .stat__value {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--gold-light);
}

.page-about .page-about__closing .stat__label {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.78);
}

.page-about .page-about__closing-cta h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
}

.page-about .page-about__closing-cta p {
  margin: 0 0 1.25rem;
  color: rgba(255, 255, 255, 0.75);
}

.page-about .page-about__closing-cta .btn + .btn {
  margin-left: 0.75rem;
}

.page-about .page-about__closing-cta .btn-secondary {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
}

@media (min-width: 900px) {
  .page-about .page-about__hero-inner {
    grid-template-columns: 1fr 340px;
  }

  .page-about .page-about__side-nav {
    display: block;
  }

  .page-about .page-about__story-grid {
    grid-template-columns: 1.2fr 0.8fr;
  }

  .page-about .page-about__tech-grid {
    grid-template-columns: 1.3fr 0.7fr;
  }

  .page-about .page-about__credentials-grid {
    grid-template-columns: 1fr 0.75fr;
  }

  .page-about .page-about__ecosystem-grid {
    grid-template-columns: 0.8fr 1.2fr;
  }

  .page-about .page-about__closing-inner {
    grid-template-columns: 1.1fr 1fr;
  }

  .page-about .page-about__closing-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition: none !important;
    animation: none !important;
  }
}