.page-about {
  --rail-w: 212px;
  --about-flow: clamp(38px, 6vw, 84px);
  --paper-ink: #16221F;
  --paper-sub: #5C6B6A;
  --paper-accent: #0E7A63;
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  border-bottom: 1px solid var(--line);
}
.page-about .about-hero__media {
  position: absolute;
  inset: 0;
}
.page-about .about-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .3;
  filter: saturate(.72) contrast(1.06);
}
.page-about .about-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 15, 18, .5) 0%, rgba(10, 15, 18, .88) 68%, var(--ink) 100%),
    linear-gradient(104deg, rgba(15, 42, 34, .78) 0%, rgba(15, 42, 34, 0) 58%);
}
.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  padding-block: clamp(72px, 13vw, 156px) clamp(36px, 5vw, 68px);
}
.page-about .about-hero__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--cyan);
}
.page-about .about-hero__title {
  margin: 16px 0 0;
  font-size: clamp(36px, 7.4vw, 84px);
  font-weight: 300;
  line-height: 1.04;
  letter-spacing: .012em;
  color: var(--white);
}
.page-about .about-hero__lead {
  max-width: 60ch;
  margin: clamp(18px, 2.4vw, 28px) 0 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--body);
}
.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  max-width: 760px;
  margin: clamp(30px, 4vw, 48px) 0 0;
  padding: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-about .about-hero__stats > div {
  padding: 14px 16px;
  background: rgba(10, 15, 18, .74);
}
.page-about .about-hero__stats dt {
  margin: 0 0 7px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  color: var(--muted);
}
.page-about .about-hero__stats dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.4vw, 25px);
  letter-spacing: .03em;
  color: var(--cyan);
}

/* ---------- Layout ---------- */
.page-about .about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--about-flow);
  align-items: start;
  padding-block: clamp(30px, 4vw, 58px) clamp(56px, 8vw, 110px);
}
.page-about .about-body {
  display: flex;
  flex-direction: column;
  gap: var(--about-flow);
  min-width: 0;
}

/* ---------- Rail ---------- */
.page-about .about-rail {
  position: relative;
  min-width: 0;
}
.page-about .about-rail__title {
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--muted);
}
.page-about .about-rail__spy {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}
.page-about .about-rail__spy a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex: 0 0 auto;
  padding: 8px 12px 8px 10px;
  border-left: 2px solid transparent;
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.page-about .about-rail__spy a:hover {
  color: var(--white);
}
.page-about .about-rail__spy a[data-active="true"] {
  color: var(--white);
  border-left-color: var(--cyan);
  background: linear-gradient(90deg, rgba(72, 224, 210, .12), rgba(72, 224, 210, 0) 82%);
}
.page-about .about-rail__year {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--cyan);
  min-width: 56px;
}
.page-about .about-rail__label {
  font-size: 13px;
}

/* ---------- Section skeleton ---------- */
.page-about .about-section {
  min-width: 0;
  scroll-margin-top: 108px;
}
.page-about .about-section__head {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 7px;
  align-items: baseline;
  margin-bottom: clamp(22px, 3vw, 36px);
  padding-top: 18px;
  border-top: 1px solid var(--line-strong);
}
.page-about .about-section__index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
}
.page-about .about-section__title {
  margin: 0;
  font-size: clamp(21px, 3.2vw, 33px);
  font-weight: 500;
  line-height: 1.22;
  letter-spacing: .012em;
  color: var(--white);
}
.page-about .about-section__note {
  grid-column: 2;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--muted);
}
.page-about .about-lead {
  max-width: 66ch;
  margin: 0 0 clamp(20px, 2.6vw, 30px);
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--body);
}

/* ---------- Paper section ---------- */
.page-about .about-section--paper {
  padding: clamp(22px, 3.4vw, 46px);
  background: var(--paper);
  border: 1px solid rgba(10, 15, 18, .16);
}
.page-about .about-section--paper .about-section__head {
  border-top-color: rgba(10, 15, 18, .28);
}
.page-about .about-section--paper .about-section__index {
  color: var(--paper-accent);
}
.page-about .about-section--paper .about-section__title {
  color: #11201B;
}
.page-about .about-section--paper .about-section__note {
  color: var(--paper-sub);
}
.page-about .about-section--paper p {
  color: var(--paper-ink);
}

/* ---------- 01 start ---------- */
.page-about .about-start {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 40px);
}
.page-about .about-start__prose p {
  margin: 0 0 1em;
  font-size: 15.5px;
  line-height: 1.88;
}
.page-about .about-start__prose p:last-child {
  margin-bottom: 0;
}
.page-about .about-start__side {
  padding-left: 20px;
  border-left: 3px solid var(--paper-accent);
}
.page-about .about-start__figure {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(42px, 6.4vw, 66px);
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--paper-accent);
}
.page-about .about-start__figure span {
  margin-left: 10px;
  font-size: 12.5px;
  letter-spacing: .14em;
  color: var(--paper-sub);
}
.page-about .about-start__caption {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--paper-sub);
}

/* ---------- 02 schedule ---------- */
.page-about .about-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-about .about-fact {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 16px 18px;
  background: var(--graphite);
}
.page-about .about-fact__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 38px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--cyan);
}
.page-about .about-fact__num small {
  margin-left: 6px;
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--muted);
}
.page-about .about-fact__label {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--body);
}
.page-about .about-sched__narrative p {
  margin: 0 0 1em;
  font-size: 15px;
  line-height: 1.88;
  color: var(--body);
}
.page-about .about-sched__narrative p:last-child {
  margin-bottom: 0;
}

/* ---------- 03 team ---------- */
.page-about .about-team {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 40px);
  align-items: start;
}
.page-about .about-team__media {
  margin: 0;
  border: 1px solid var(--line);
}
.page-about .about-team__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .about-team__media figcaption {
  padding: 12px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.7;
  letter-spacing: .04em;
  color: var(--muted);
}
.page-about .about-team__body p {
  margin: 0 0 1em;
  font-size: 15px;
  line-height: 1.88;
  color: var(--body);
}
.page-about .about-team__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(20px, 2.6vw, 28px) 0 0;
  padding: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-about .about-team__stats > div {
  padding: 14px 16px;
  background: var(--ink);
}
.page-about .about-team__stats dt {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  color: var(--muted);
}
.page-about .about-team__stats dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 17px;
  letter-spacing: .03em;
  color: var(--white);
}

/* ---------- 04 fields ---------- */
.page-about .about-fields {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
}
.page-about .about-fields__row {
  display: grid;
  grid-template-columns: 34px 104px minmax(0, 1fr);
  column-gap: 14px;
  align-items: baseline;
  padding: 13px 12px 13px 10px;
  border-bottom: 1px solid var(--line);
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.page-about .about-fields__row:hover {
  background: rgba(72, 224, 210, .06);
  box-shadow: inset 2px 0 0 var(--cyan);
}
.page-about .about-fields__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--muted);
}
.page-about .about-fields__name {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--cyan);
}
.page-about .about-fields__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--body);
}

/* ---------- 05 milestones ---------- */
.page-about .about-miles__media {
  margin: 0 0 clamp(20px, 3vw, 32px);
  border: 1px solid var(--line);
}
.page-about .about-miles__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .about-miles {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-about .about-miles::before {
  content: "";
  position: absolute;
  top: 22px;
  bottom: 22px;
  left: 6px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), rgba(72, 224, 210, .1));
}
.page-about .about-mile {
  position: relative;
  padding-left: 34px;
  border-bottom: 1px solid var(--line);
}
.page-about .about-mile:last-child {
  border-bottom: 0;
}
.page-about .about-mile__node {
  position: absolute;
  left: 1px;
  top: 30px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 1.5px solid var(--line-strong);
  background: var(--ink);
}
.page-about .about-mile.is-done .about-mile__node {
  border-color: var(--cyan);
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(72, 224, 210, .12);
}
.page-about .about-mile__details summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  row-gap: 5px;
  padding: 15px 4px;
  cursor: pointer;
  list-style: none;
  transition: color var(--dur) var(--ease);
}
.page-about .about-mile__details summary::-webkit-details-marker {
  display: none;
}
.page-about .about-mile__details summary:hover .about-mile__title {
  color: var(--cyan);
}
.page-about .about-mile__year {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--muted);
}
.page-about .about-mile__title {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--white);
  transition: color var(--dur) var(--ease);
}
.page-about .about-mile__details p {
  margin: 0 0 18px;
  padding-left: 4px;
  max-width: 64ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--body);
}

/* ---------- 06 partners ---------- */
.page-about .about-partners {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
}
.page-about .about-partner {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--graphite), #141B20);
}
.page-about .about-partner__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(28px, 4.2vw, 44px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--cyan);
}
.page-about .about-partner__num small {
  margin-left: 5px;
  font-size: 13.5px;
  letter-spacing: .12em;
  color: var(--muted);
}
.page-about .about-partner h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--white);
}
.page-about .about-partner p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--body);
}
.page-about .about-partners__more {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--body);
}
.page-about .about-partners__more a {
  color: var(--cyan);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
.page-about .about-partners__more a:hover {
  color: var(--white);
}

/* ---------- 07 trust ---------- */
.page-about .about-section--close {
  padding-top: clamp(6px, 1vw, 12px);
}
.page-about .about-trust {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
}
.page-about .about-trust__item {
  padding-top: 16px;
  border-top: 2px solid var(--turf);
}
.page-about .about-trust__k {
  display: block;
  margin-bottom: 10px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--white);
}
.page-about .about-trust__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--body);
}
.page-about .about-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(26px, 3.6vw, 40px);
}

/* ---------- Reveal fallback ---------- */
.page-about .reveal {
  opacity: 1;
}

/* ---------- Media queries ---------- */
@media (min-width: 600px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .about-mile__details summary {
    grid-template-columns: 132px minmax(0, 1fr);
    column-gap: 18px;
    align-items: baseline;
  }
}

@media (min-width: 760px) {
  .page-about .about-partners {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
  .page-about .about-partner--a { grid-column: span 3; }
  .page-about .about-partner--b { grid-column: span 3; }
  .page-about .about-partner--c { grid-column: span 2; }
  .page-about .about-partner--d { grid-column: span 2; }
  .page-about .about-partner--e { grid-column: span 2; }

  .page-about .about-trust {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .about-trust__item:nth-child(2) {
    margin-top: 20px;
  }
}

@media (min-width: 860px) {
  .page-about .about-start {
    grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr);
  }
  .page-about .about-team {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
  }
}

@media (min-width: 1000px) {
  .page-about .about-layout {
    grid-template-columns: var(--rail-w) minmax(0, 1fr);
    column-gap: clamp(34px, 4.2vw, 76px);
  }
  .page-about .about-rail {
    position: sticky;
    top: 96px;
  }
  .page-about .about-rail__spy {
    flex-direction: column;
    gap: 0;
    overflow: visible;
  }
  .page-about .about-rail__spy a {
    white-space: normal;
    padding: 9px 10px 9px 12px;
  }
}

@media (max-width: 640px) {
  .page-about .about-fields__row {
    grid-template-columns: 30px minmax(0, 1fr);
    row-gap: 4px;
  }
  .page-about .about-fields__desc {
    grid-column: 2;
  }
  .page-about .about-section--paper {
    margin-inline: calc(var(--pad) * -1);
    padding-inline: var(--pad);
    border-left: 0;
    border-right: 0;
  }
}