.page-about {
  background: var(--ink-900);
  color: var(--fog-050);
}

.page-about .ab-h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(26px, 4.4vw, 46px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 12px 0 18px;
  color: var(--fog-050);
}

.page-about .prose {
  max-width: 68ch;
}

.page-about .prose p {
  font-size: 16px;
  line-height: 1.78;
  color: var(--fog-050);
  margin: 0 0 16px;
}

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

/* ---------- HERO ---------- */
.page-about .ab-hero {
  position: relative;
  padding: clamp(22px, 4vw, 40px) 0 clamp(40px, 6vw, 80px);
  overflow: hidden;
}

.page-about .ab-hero::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto auto;
  width: min(720px, 90vw);
  height: min(720px, 90vw);
  background: radial-gradient(circle at 70% 30%, rgba(255, 107, 26, 0.18), transparent 62%),
    radial-gradient(circle at 40% 70%, rgba(31, 224, 166, 0.12), transparent 60%);
  pointer-events: none;
}

.page-about .ab-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-about .ab-hero__title {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 6.6vw, 64px);
  line-height: 1.06;
  letter-spacing: -0.025em;
  margin: 10px 0 18px;
  color: var(--fog-050);
}

.page-about .ab-hero__deck {
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  max-width: 60ch;
  color: var(--steel-400);
  margin: 0 0 26px;
}

.page-about .ab-hero__stats {
  list-style: none;
  margin: 0;
  padding: 18px 0 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  border-top: 1px solid var(--edge-1);
}

.page-about .ab-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-about .ab-stat__n {
  font-size: clamp(20px, 2.6vw, 26px);
  color: var(--mint-400);
  line-height: 1;
}

.page-about .ab-stat__k {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--steel-400);
}

.page-about .ab-hero__side {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-about .ab-cert {
  position: relative;
  background: var(--paper-100);
  color: var(--ink-900);
  border: 1px solid var(--ink-900);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sheet);
  padding: 20px;
}

.page-about .ab-cert .cert-tag {
  display: inline-block;
  background: var(--orange-500);
  color: var(--ink-900);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 5px 10px;
  border-radius: 3px;
  transform: rotate(-1.5deg);
}

.page-about .ab-cert__text {
  font-size: 15px;
  line-height: 1.75;
  margin: 14px 0 18px;
  color: var(--ink-800);
}

.page-about .ab-cert__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .ab-cert__strip {
  display: flex;
  gap: 6px;
  padding-left: 4px;
}

.page-about .ab-cert__strip span {
  height: 4px;
  flex: 1;
  background: var(--ink-700);
  border-radius: 2px;
}

.page-about .ab-cert__strip span:nth-child(2) {
  background: var(--orange-500);
}

.page-about .ab-cert__strip span:nth-child(4) {
  background: var(--mint-400);
}

/* ---------- ORIGIN ---------- */
.page-about .ab-origin {
  padding: clamp(36px, 6vw, 76px) 0;
  border-top: 1px solid var(--edge-1);
}

.page-about .ab-split {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-about .note-rail {
  border-left: 3px solid var(--orange-500);
  padding-left: 16px;
}

.page-about .note-rail p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--steel-400);
  margin: 0 0 14px;
}

.page-about .note-rail__key {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--orange-300) !important;
  margin-bottom: 6px !important;
}

/* ---------- TIMELINE ---------- */
.page-about .ab-timeline {
  padding: clamp(36px, 6vw, 76px) 0;
  background: var(--ink-800);
  border-top: 1px solid var(--edge-1);
  border-bottom: 1px solid var(--edge-1);
}

.page-about .ab-timeline__head {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-about .ab-timeline__media img {
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--radius-card);
  border: 1px solid var(--edge-1);
  aspect-ratio: 3 / 4;
}

.page-about .ab-timeline__hint {
  margin: 22px 0 14px;
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--steel-400);
}

.page-about .ab-track {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 4px 4px 18px;
  -webkit-overflow-scrolling: touch;
  scrollbar-color: var(--orange-500) transparent;
}

.page-about .ab-track::-webkit-scrollbar {
  height: 6px;
}

.page-about .ab-track::-webkit-scrollbar-thumb {
  background: var(--ink-700);
  border-radius: 3px;
}

.page-about .ab-node {
  flex: 0 0 min(300px, 80vw);
  scroll-snap-align: start;
  background: var(--ink-900);
  border: 1px solid var(--edge-1);
  border-radius: var(--radius-card);
  padding: 20px 18px 22px;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.page-about .ab-node:hover,
.page-about .ab-node:focus-visible {
  transform: translateY(-4px);
  border-color: var(--orange-500);
  box-shadow: 3px 5px 0 rgba(255, 107, 26, 0.24);
}

.page-about .ab-node--current {
  border-color: rgba(31, 224, 166, 0.55);
}

.page-about .ab-node__stamp {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: var(--orange-500);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 14px;
  border-radius: 3px;
  transform: rotate(-2deg);
  transition: transform var(--dur) var(--ease);
}

.page-about .ab-node:hover .ab-node__stamp,
.page-about .ab-node:focus-visible .ab-node__stamp {
  transform: rotate(0deg);
}

.page-about .ab-node--current .ab-node__stamp {
  background: var(--mint-400);
}

.page-about .ab-node__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.35;
  margin: 16px 0 10px;
  color: var(--fog-050);
}

.page-about .ab-node__pain {
  font-size: 14px;
  line-height: 1.7;
  color: var(--steel-400);
  margin: 0;
}

.page-about .ab-node__fix {
  font-size: 14px;
  line-height: 1.7;
  color: var(--fog-050);
  margin: 10px 0 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height var(--dur) var(--ease), opacity var(--dur) var(--ease),
    margin var(--dur) var(--ease);
}

.page-about .ab-node:hover .ab-node__fix,
.page-about .ab-node:focus-visible .ab-node__fix,
.page-about .ab-node:focus-within .ab-node__fix {
  max-height: 220px;
  opacity: 1;
}

/* ---------- TEAM ---------- */
.page-about .ab-team {
  padding: clamp(40px, 6vw, 80px) 0;
}

.page-about .ab-team__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-about .ab-team__figure {
  margin: 26px 0 0;
}

.page-about .ab-team__figure img {
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--radius-card);
  border: 1px solid var(--edge-1);
  aspect-ratio: 4 / 3;
}

.page-about .ab-team__figure .media-frame__cap {
  font-size: 13px;
  color: var(--steel-400);
  margin-top: 10px;
  line-height: 1.6;
}

.page-about .ab-roles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  align-content: start;
}

.page-about .ab-role {
  position: relative;
  background: var(--ink-800);
  border: 1px solid var(--edge-1);
  border-radius: var(--radius-card);
  padding: 18px;
  transition: transform var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}

.page-about .ab-role:hover {
  transform: translateY(-3px);
  border-color: var(--orange-300);
}

.page-about .ab-role__n {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mint-400);
  display: block;
  margin-bottom: 8px;
}

.page-about .ab-role__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 18px;
  margin: 0 0 8px;
  color: var(--fog-050);
}

.page-about .ab-role__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--steel-400);
  margin: 0 0 12px;
}

.page-about .ab-role .tag-paper {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 4px 9px;
  border-radius: 2px;
  border: 1px solid var(--edge-2);
  color: var(--fog-050);
}

.page-about .ab-role .tag-paper--mint {
  border-color: rgba(31, 224, 166, 0.6);
  color: var(--mint-400);
}

.page-about .ab-role .tag-paper--dark {
  background: var(--ink-900);
  color: var(--steel-400);
}

/* ---------- REACH ---------- */
.page-about .ab-reach {
  padding: clamp(36px, 6vw, 76px) 0;
  background: var(--ink-800);
  border-top: 1px solid var(--edge-1);
  border-bottom: 1px solid var(--edge-1);
}

.page-about .ab-reach__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-about .ab-reach__copy .btn {
  margin-top: 22px;
}

.page-about .ab-matrix {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 6px;
  max-width: 460px;
}

.page-about .ab-matrix span {
  display: block;
  aspect-ratio: 1 / 1;
  background: var(--ink-700);
  border: 1px solid var(--edge-1);
  border-radius: 2px;
}

.page-about .ab-matrix span.is-lit {
  background: var(--mint-400);
  border-color: var(--mint-400);
  box-shadow: 0 0 0 3px rgba(31, 224, 166, 0.14);
}

.page-about .ab-matrix__cap {
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel-400);
  margin: 16px 0 20px;
  max-width: 42ch;
}

.page-about .ab-reach__facts {
  list-style: none;
  margin: 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--edge-1);
  display: grid;
  gap: 10px;
}

.page-about .ab-reach__facts li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 14px;
  color: var(--steel-400);
}

.page-about .ab-reach__facts .mono {
  color: var(--orange-300);
  font-size: 14px;
  min-width: 84px;
}

/* ---------- DESK (paper) ---------- */
.page-about .ab-desk {
  padding: clamp(36px, 6vw, 76px) 0;
  background: var(--paper-100);
  color: var(--ink-900);
}

.page-about .ab-desk__inner {
  position: relative;
}

.page-about .ab-desk .eyebrow {
  color: var(--orange-500);
}

.page-about .ab-desk .ab-h2 {
  color: var(--ink-900);
}

.page-about .ab-desk__lede {
  font-size: 16px;
  line-height: 1.78;
  max-width: 62ch;
  color: var(--ink-700);
  margin: 0 0 30px;
}

.page-about .ab-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}

.page-about .ab-step {
  position: relative;
  background: var(--fog-050);
  border: 1px solid var(--ink-900);
  border-radius: var(--radius-card);
  box-shadow: 3px 4px 0 rgba(4, 18, 31, 0.16);
  padding: 18px;
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}

.page-about .ab-step:hover {
  transform: translateY(-3px);
  box-shadow: 4px 7px 0 rgba(4, 18, 31, 0.22);
}

.page-about .ab-step__stamp {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--orange-500);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13px;
  border-radius: 3px;
  transform: rotate(-1.5deg);
}

.page-about .ab-step__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 18px;
  margin: 14px 0 8px;
  color: var(--ink-900);
}

.page-about .ab-step__desc {
  font-size: 14px;
  line-height: 1.72;
  color: var(--ink-700);
  margin: 0;
}

.page-about .ab-desk__foot {
  margin: 28px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-700);
}

.page-about .ab-desk__foot a {
  color: var(--ink-900);
  font-weight: 500;
  text-decoration: underline;
  text-decoration-color: var(--orange-500);
  text-underline-offset: 3px;
}

/* ---------- PARTNERS ---------- */
.page-about .ab-partners {
  padding: clamp(36px, 6vw, 76px) 0;
}

.page-about .ab-partners__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-about .ab-partners__lead p {
  font-size: 16px;
  line-height: 1.78;
  color: var(--steel-400);
  max-width: 62ch;
  margin: 0;
}

.page-about .ab-partners__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .ab-partners__list li {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "n k"
    "n d";
  gap: 2px 16px;
  align-items: center;
  background: var(--ink-800);
  border: 1px solid var(--edge-1);
  border-left: 3px solid var(--orange-500);
  border-radius: 8px;
  padding: 16px 18px;
  transition: border-left-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}

.page-about .ab-partners__list li:hover {
  border-left-color: var(--mint-400);
  transform: translateX(3px);
}

.page-about .ab-partners__n {
  grid-area: n;
  font-size: clamp(20px, 3vw, 26px);
  color: var(--mint-400);
  line-height: 1;
  min-width: 74px;
}

.page-about .ab-partners__k {
  grid-area: k;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  color: var(--fog-050);
}

.page-about .ab-partners__d {
  grid-area: d;
  font-size: 13px;
  line-height: 1.6;
  color: var(--steel-400);
}

/* ---------- PRINCIPLES ---------- */
.page-about .ab-principles {
  padding: clamp(36px, 6vw, 76px) 0 0;
  background: var(--ink-800);
  border-top: 1px solid var(--edge-1);
  overflow: hidden;
}

.page-about .ab-principles__grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

.page-about .ab-principles__list {
  list-style: none;
  counter-reset: prin;
  margin: 0 0 28px;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .ab-principles__list li {
  counter-increment: prin;
  position: relative;
  padding-left: 46px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--steel-400);
}

.page-about .ab-principles__list li::before {
  content: counter(prin, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 14px;
  color: var(--mint-400);
  border: 1px solid rgba(31, 224, 166, 0.5);
  border-radius: 2px;
  padding: 2px 5px;
}

.page-about .ab-principles__list strong {
  display: block;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  color: var(--fog-050);
  margin-bottom: 4px;
}

.page-about .ab-principles__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: clamp(30px, 5vw, 56px);
}

.page-about .ab-principles__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 16 / 6;
  border-top: 1px solid var(--edge-1);
  filter: saturate(1.1);
}

/* ---------- RESPONSIVE ---------- */
@media (min-width: 640px) {
  .page-about .ab-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

  .page-about .ab-matrix {
    grid-template-columns: repeat(9, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-about .ab-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-about .ab-hero__side {
    margin-top: 34px;
  }

  .page-about .ab-split {
    grid-template-columns: minmax(0, 1fr) 290px;
    align-items: start;
  }

  .page-about .ab-split__rail {
    position: sticky;
    top: 112px;
  }

  .page-about .ab-timeline__head {
    grid-template-columns: minmax(0, 1fr) 260px;
    align-items: end;
  }

  .page-about .ab-team__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-about .ab-roles {
    grid-template-columns: 1fr;
  }

  .page-about .ab-reach__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: center;
    gap: clamp(40px, 6vw, 80px);
  }

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

  .page-about .ab-partners__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: start;
  }

  .page-about .ab-principles__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-about .ab-node {
    flex-basis: 340px;
  }
}

@media (min-width: 1200px) {
  .page-about .ab-roles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-node,
  .page-about .ab-node__stamp,
  .page-about .ab-node__fix,
  .page-about .ab-role,
  .page-about .ab-step,
  .page-about .ab-partners__list li {
    transition: none;
  }

  .page-about .ab-node:hover,
  .page-about .ab-node:focus-visible,
  .page-about .ab-role:hover,
  .page-about .ab-step:hover,
  .page-about .ab-partners__list li:hover {
    transform: none;
  }
}

.page-about a:focus-visible,
.page-about [tabindex]:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 3px;
}