.page-about {
  --about-radius: 16px;
  --about-pad: 56px 0;
  --about-timeline-w: 172px;
  background: var(--paper);
  color: var(--ink);
}

.page-about .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 22px 0 0;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--slate);
}

.page-about .breadcrumb a {
  color: var(--navy);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

.page-about .breadcrumb a:hover {
  color: var(--red);
}

.page-about__crumb-sep {
  color: var(--sand);
  font-family: var(--font-mono);
}

.page-about__head {
  position: relative;
  padding: 28px 0 30px;
  overflow: hidden;
}

.page-about__head::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, transparent 0 46%, rgba(10, 37, 64, 0.05) 46% 50%, transparent 50%),
    radial-gradient(circle at 86% 18%, rgba(232, 89, 12, 0.10) 0 60px, transparent 61px),
    radial-gradient(circle at 72% 76%, rgba(200, 241, 53, 0.14) 0 40px, transparent 41px);
  pointer-events: none;
}

.page-about__head .container {
  position: relative;
  z-index: 1;
}

.page-about__kicker {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.page-about__version {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-about__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(30px, 6.4vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  max-width: 15em;
}

.page-about__lede {
  margin: 0 0 28px;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--steel);
}

.page-about__run {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: 20px;
  border-top: 1px solid var(--sand);
}

.page-about__run-text {
  font-size: clamp(26px, 5vw, 44px);
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--ink);
  white-space: nowrap;
}

.page-about__run-text--current {
  color: var(--orange);
}

.page-about__run-track {
  flex: 1 1 auto;
  min-width: 40px;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--sand) 0 6px, transparent 6px 12px);
}

.page-about__run-arrow {
  color: var(--orange);
  font-size: 20px;
}

.page-about__live {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--volt);
  animation: page-about-pulse 1.6s ease-in-out infinite;
}

@keyframes page-about-pulse {
  0%, 100% {
    box-shadow: 0 0 0 3px rgba(200, 241, 53, 0.18);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(200, 241, 53, 0.06);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about__live {
    animation: none;
  }
}

.page-about__hero {
  margin: 30px 0 4px;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: var(--about-radius);
  border: 1px solid var(--sand);
  background: var(--navy);
  box-shadow: 0 24px 48px rgba(10, 37, 64, 0.16);
}

.page-about__hero img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-about__index {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  margin-top: 28px;
  padding: 18px 0;
  border-top: 1px dashed var(--sand);
  border-bottom: 1px dashed var(--sand);
}

.page-about__index-label {
  flex-basis: 100%;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-about .chapter-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: var(--navy);
  text-decoration: none;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.page-about .chapter-index__link:hover {
  border-color: var(--sand);
  background: var(--surface);
}

.page-about .chapter-index__link[aria-current="location"] {
  border-color: var(--navy);
  background: var(--navy);
  color: var(--surface);
}

.page-about .chapter-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  opacity: 0.75;
}

.page-about section[id] {
  scroll-margin-top: 70px;
}

.page-about__sec-head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 26px;
}

.page-about__sec-note {
  margin: 0 0 24px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--slate);
}

.page-about .section__eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red);
}

.page-about .section__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 750;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-about__origin {
  padding: var(--about-pad);
}

.page-about__origin-grid {
  display: grid;
  gap: 22px;
}

.page-about__origin-lead {
  margin: 0;
  padding-left: 18px;
  border-left: 4px solid var(--orange);
  font-family: var(--font-display);
  font-size: clamp(20px, 3.2vw, 28px);
  font-weight: 600;
  line-height: 1.45;
  color: var(--navy);
}

.page-about__origin-copy p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.75;
}

.page-about__origin-copy p:last-child {
  margin-bottom: 0;
}

.page-about__milestones {
  padding: var(--about-pad);
  background: var(--surface);
  border-top: 1px solid var(--sand);
  border-bottom: 1px solid var(--sand);
}

.page-about__timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 24px;
}

.page-about__timeline::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 14px;
  left: 0;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--orange) 0 8%, var(--navy) 8% 78%, var(--volt) 100%);
}

.page-about__milestone {
  position: relative;
  margin: 0 0 28px;
}

.page-about__milestone::before {
  content: "";
  position: absolute;
  top: 22px;
  left: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--surface);
  border: 3px solid var(--navy);
  box-sizing: border-box;
  transform: translateX(-50%);
}

.page-about__milestone--current::before {
  border-color: var(--orange);
  box-shadow: 0 0 0 4px rgba(232, 89, 12, 0.16);
}

.page-about__milestone-year {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 8px;
}

.page-about__milestone-year .data-num {
  font-size: 26px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--navy);
}

.page-about__milestone-ver {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--red);
  border: 1px solid rgba(217, 72, 15, 0.45);
  border-radius: 999px;
  padding: 2px 9px;
}

.page-about__milestone-card {
  padding: 18px;
  background: var(--paper);
  border: 1px solid var(--sand);
  border-radius: var(--about-radius);
  box-shadow: 0 6px 18px rgba(10, 37, 64, 0.05);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-about__milestone-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(10, 37, 64, 0.10);
}

.page-about__milestone-card .card__title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
}

.page-about__milestone-card .card__body {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.page-about__milestone-card .card__meta {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--slate);
}

.page-about__detail {
  margin-top: 10px;
  border: 1px solid var(--sand);
  border-radius: 10px;
  background: var(--surface);
}

.page-about__detail summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  cursor: pointer;
  list-style: none;
  font-size: 13px;
  font-weight: 600;
  color: var(--navy);
}

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

.page-about__detail summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--red);
}

.page-about__detail[open] summary::after {
  content: "−";
}

.page-about__detail > p {
  margin: 0;
  padding: 0 12px 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink);
}

.page-about__capabilities {
  position: relative;
  padding: var(--about-pad);
  overflow: hidden;
  background: var(--navy);
  color: var(--surface);
}

.page-about__capabilities::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 14% 12%, rgba(200, 241, 53, 0.10) 0 90px, transparent 91px),
    radial-gradient(circle at 92% 82%, rgba(232, 89, 12, 0.12) 0 120px, transparent 121px),
    linear-gradient(60deg, transparent 62%, rgba(45, 74, 111, 0.45) 62.4% 63%, transparent 63.4%),
    linear-gradient(-60deg, transparent 62%, rgba(45, 74, 111, 0.35) 62.4% 63%, transparent 63.4%);
  pointer-events: none;
}

.page-about__capabilities .container {
  position: relative;
  z-index: 1;
}

.page-about__capabilities .section__eyebrow {
  color: var(--volt);
}

.page-about__capabilities .section__title {
  color: var(--surface);
}

.page-about__capabilities .page-about__sec-note {
  color: rgba(244, 239, 230, 0.74);
}

.page-about__cap-grid {
  display: grid;
  gap: 26px;
}

.page-about__cap-visual {
  min-width: 0;
}

.page-about__cap-chart {
  aspect-ratio: 7 / 5;
  overflow: hidden;
  border: 1px solid rgba(244, 239, 230, 0.2);
  border-radius: var(--about-radius);
}

.page-about__cap-chart img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-about__cap-caption {
  margin: 8px 0 0;
  font-size: 12px;
  line-height: 1.6;
  color: rgba(244, 239, 230, 0.66);
}

.page-about__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.page-about__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
  padding: 14px;
  background: rgba(251, 247, 239, 0.05);
  border: 1px solid rgba(244, 239, 230, 0.14);
  border-radius: 12px;
}

.page-about__stat-num {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--volt);
}

.page-about__stat-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--surface);
}

.page-about__stat-note {
  font-size: 12px;
  line-height: 1.5;
  color: rgba(244, 239, 230, 0.68);
}

.page-about__sync {
  display: grid;
  gap: 20px;
  margin-top: 30px;
  padding-top: 28px;
  border-top: 1px solid rgba(244, 239, 230, 0.14);
}

.page-about__sync-img {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid rgba(244, 239, 230, 0.18);
  border-radius: var(--about-radius);
}

.page-about__sync-img img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-about__sync-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--surface);
}

.page-about__sync-body p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(244, 239, 230, 0.86);
}

.page-about__sync-meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--volt);
}

.page-about__team {
  padding: var(--about-pad);
}

.page-about__team-grid {
  display: grid;
  gap: 14px;
}

.page-about__team-card {
  min-width: 0;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--sand);
  border-radius: var(--about-radius);
  box-shadow: 0 4px 16px rgba(10, 37, 64, 0.04);
}

.page-about__team-card .card__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-about__team-card .card__title .data-num {
  color: var(--red);
}

.page-about__team-card .card__body {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.page-about__philosophy {
  padding: var(--about-pad);
  border-top: 4px solid var(--navy);
  background: var(--paper);
}

.page-about__philosophy-head {
  margin-bottom: 20px;
}

.page-about__principles {
  list-style: none;
  margin: 0 0 30px;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-about__principle {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  align-items: start;
  padding-bottom: 18px;
  border-bottom: 1px dashed var(--sand);
}

.page-about__principle:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about__principle-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(217, 72, 15, 0.45);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--red);
}

.page-about__principle h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-about__principle p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.page-about__cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 8px;
}

.page-about .btn--ghost {
  border-color: var(--navy);
  color: var(--navy);
}

.page-about__more {
  margin: 24px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.page-about__more a {
  color: var(--red);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(217, 72, 15, 0.4);
  transition: border-bottom-color 0.2s ease;
}

.page-about__more a:hover {
  border-bottom-color: var(--red);
}

@media (min-width: 700px) {
  .page-about__index {
    flex-wrap: nowrap;
  }

  .page-about__index-label {
    flex-basis: auto;
    margin-right: 10px;
    margin-bottom: 0;
  }

  .page-about__origin-grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 40px;
    align-items: start;
  }

  .page-about__cap-grid {
    grid-template-columns: 0.95fr 1.05fr;
    gap: 30px;
    align-items: start;
  }

  .page-about__stats {
    gap: 14px;
  }

  .page-about__sync {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 30px;
    align-items: center;
  }

  .page-about__team-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-about__team-card--wide {
    grid-column: span 2;
  }

  .page-about__principles {
    grid-template-columns: 1fr 1fr;
    gap: 24px 32px;
  }

  .page-about__principle {
    padding-bottom: 0;
    border-bottom: 0;
  }
}

@media (min-width: 1024px) {
  .page-about__head {
    padding: 46px 0 40px;
  }

  .page-about__run {
    gap: 18px;
  }

  .page-about__run-track {
    height: 2px;
    position: relative;
    background: repeating-linear-gradient(90deg, var(--sand) 0 12px, transparent 12px 24px);
  }

  .page-about__run-track::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    transform: translateY(-50%);
    background: linear-gradient(90deg, var(--orange), var(--navy) 72%);
    opacity: 0.3;
  }

  .page-about__milestones .page-about__sec-head--split {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
    gap: 30px;
  }

  .page-about__milestones .page-about__sec-note {
    max-width: 24em;
    margin: 0;
    text-align: right;
  }

  .page-about__timeline {
    padding-left: 0;
  }

  .page-about__timeline::before {
    left: var(--about-timeline-w);
    top: 10px;
    bottom: 10px;
  }

  .page-about__milestone {
    display: grid;
    grid-template-columns: var(--about-timeline-w) 1fr;
    column-gap: 44px;
    align-items: start;
    margin-bottom: 34px;
  }

  .page-about__milestone::before {
    left: var(--about-timeline-w);
    top: 24px;
  }

  .page-about__milestone--current::before {
    box-shadow: 0 0 0 6px rgba(232, 89, 12, 0.14);
  }

  .page-about__milestone-year {
    flex-direction: column;
    align-items: flex-end;
    gap: 2px;
    margin: 0;
    padding: 14px 18px 0 0;
    text-align: right;
  }

  .page-about__milestone-year .data-num {
    font-size: 30px;
  }

  .page-about__capabilities .page-about__sec-head {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
  }

  .page-about__capabilities .page-about__sec-note {
    max-width: 26em;
    margin: 0;
    text-align: right;
  }

  .page-about__team {
    padding: 72px 0;
  }

  .page-about__philosophy-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 24px;
  }
}