.page-about {
  --about-hair: rgba(7, 26, 20, 0.16);
  --about-hair-light: rgba(243, 235, 221, 0.18);
  --about-body-ink: rgba(7, 26, 20, 0.78);
  --about-body-paper: rgba(243, 235, 221, 0.86);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  font-family: var(--font-display);
  font-weight: 800;
}

.page-about p {
  margin: 0;
}

.page-about img {
  max-width: 100%;
  height: auto;
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  padding: clamp(22px, 3.4vw, 36px) 0 clamp(56px, 9vw, 104px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  right: -14%;
  bottom: -58%;
  width: 84%;
  height: 140%;
  background: linear-gradient(150deg, rgba(79, 240, 200, 0.16), rgba(31, 107, 74, 0.13) 46%, transparent 72%);
  transform: rotate(-11deg);
  pointer-events: none;
}

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

.page-about .about-hero .breadcrumbs-link,
.page-about .about-hero .breadcrumbs-current {
  color: var(--mist);
}

.page-about .about-hero .breadcrumbs-link:hover,
.page-about .about-hero .breadcrumbs-link:focus-visible {
  color: var(--cyan);
}

.page-about .hero-grid {
  display: grid;
  gap: clamp(26px, 4.5vw, 52px);
  margin-top: clamp(26px, 4vw, 46px);
}

.page-about .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--cyan);
  margin-bottom: 18px;
}

.page-about .about-hero h1 {
  font-size: clamp(34px, 6.2vw, 74px);
  line-height: 1.03;
  letter-spacing: -0.025em;
  margin: 0 0 22px;
  max-width: 640px;
}

.page-about .hero-summary {
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.85;
  color: var(--about-body-paper);
  max-width: 52ch;
}

.page-about .hero-facts {
  display: grid;
  gap: 20px;
  border-left: 2px solid var(--gold-deep);
  padding-left: clamp(16px, 3vw, 26px);
}

.page-about .hero-fact {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}

.page-about .hero-fact-num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.6vw, 42px);
  line-height: 1;
  font-weight: 700;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-about .hero-fact-label {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- Chapters ---------- */
.page-about .about-chapter {
  padding: clamp(46px, 7.5vw, 96px) 0;
}

.page-about .about-chapter--ink {
  background: var(--ink);
  color: var(--paper);
}

.page-about .chapter-head {
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-about .chapter-index {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--gold-deep);
  border-bottom: 1px solid currentColor;
  padding-bottom: 6px;
  margin-bottom: 14px;
}

.page-about .chapter-title {
  font-size: clamp(26px, 4.2vw, 46px);
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin: 0;
  max-width: 22ch;
}

.page-about .about-chapter--ink .chapter-index {
  color: var(--gold);
}

.page-about .about-chapter--ink .chapter-title {
  color: var(--paper);
}

.page-about .chapter-text {
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.85;
  color: var(--about-body-ink);
  max-width: 62ch;
  margin-top: 20px;
}

.page-about .chapter-text--wide {
  margin-top: 0;
  max-width: 68ch;
}

.page-about .about-chapter--ink .chapter-text {
  color: var(--about-body-paper);
}

/* ---------- Split layout ---------- */
.page-about .split {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-about .split-col {
  min-width: 0;
}

.page-about .split--scope {
  margin-top: clamp(28px, 4vw, 46px);
}

.page-about .about-media {
  margin: 0;
  overflow: hidden;
  clip-path: var(--cut-lg);
  background: var(--ink-2);
}

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

.page-about .media-caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-about .about-chapter--ink .media-caption {
  color: var(--mist);
}

/* ---------- Timeline ---------- */
.page-about .timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 30px;
  position: relative;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--gold), var(--pitch));
}

.page-about .tl-item {
  position: relative;
  padding-bottom: 18px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--about-hair);
}

.page-about .tl-item:last-child {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 9px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--gold);
}

.page-about .tl-node[open] .tl-summary::after {
  content: "–";
}

.page-about .tl-summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 12px;
  cursor: pointer;
  list-style: none;
}

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

.page-about .tl-summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--gold-deep);
}

.page-about .tl-summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 4px;
}

.page-about .tl-when {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold-deep);
}

.page-about .tl-title {
  font-size: clamp(17px, 1.8vw, 20px);
  line-height: 1.3;
  color: var(--ink);
}

.page-about .tl-text {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--about-body-ink);
}

/* ---------- Round strip ---------- */
.page-about .round-strip {
  display: flex;
  gap: 6px;
  margin-top: clamp(26px, 4vw, 40px);
}

.page-about .round-cell {
  flex: 1 1 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: clamp(12px, 1.5vw, 16px);
  font-variant-numeric: tabular-nums;
  padding: 14px 0;
  background: var(--ink-2);
  color: var(--mist);
  border-top: 1px solid var(--about-hair-light);
  clip-path: var(--cut-sm);
}

.page-about .round-cell.is-mark {
  background: var(--gold);
  color: var(--ink);
  font-weight: 700;
  border-top-color: var(--gold);
}

.page-about .round-caption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ---------- Note cards ---------- */
.page-about .note-grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(24px, 3.5vw, 38px);
}

.page-about .note-card {
  background: var(--ink-2);
  border-left: 3px solid var(--cyan);
  padding: 24px 22px 26px;
  clip-path: var(--cut-sm);
}

.page-about .note-title {
  font-size: 18px;
  line-height: 1.3;
  color: var(--paper);
  margin-bottom: 10px;
}

.page-about .note-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--about-body-paper);
}

/* ---------- Tabs ---------- */
.page-about .tab-shell {
  margin-top: 8px;
}

.page-about .tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.page-about .tab-button {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 11px 20px;
  border: 1px solid var(--about-hair);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  clip-path: var(--cut-sm);
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-about .tab-button:hover {
  border-color: var(--gold);
  color: var(--gold-deep);
}

.page-about .tab-button[aria-selected="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.page-about .tab-button:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.page-about .tab-panel {
  border: 1px solid var(--about-hair);
  border-left: 3px solid var(--gold);
  background: rgba(14, 42, 34, 0.05);
  padding: clamp(20px, 3vw, 30px);
  margin-bottom: 14px;
}

.page-about .panel-title {
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.3;
  margin: 0 0 12px;
  color: var(--ink);
}

.page-about .panel-text {
  font-size: 15px;
  line-height: 1.85;
  color: var(--about-body-ink);
  max-width: 62ch;
}

/* ---------- Scope stats ---------- */
.page-about .scope-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 20px;
}

.page-about .scope-stat {
  border-top: 2px solid var(--gold-deep);
  padding-top: 14px;
}

.page-about .scope-num {
  font-family: var(--font-mono);
  font-size: clamp(30px, 4.4vw, 52px);
  line-height: 1;
  font-weight: 700;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-about .scope-label {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- Milestones ---------- */
.page-about .mile-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-about .mile-card {
  background: var(--ink-2);
  color: var(--paper);
  padding: 24px 22px 28px;
  border-top: 3px solid var(--gold);
  clip-path: var(--cut-lg);
}

.page-about .mile-card--honor {
  border-top-color: var(--cyan);
}

.page-about .mile-ver {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--gold);
  margin-bottom: 12px;
}

.page-about .mile-card--honor .mile-ver {
  color: var(--cyan);
}

.page-about .mile-name {
  font-size: 18px;
  line-height: 1.35;
  margin: 0 0 10px;
  color: var(--paper);
}

.page-about .mile-text {
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- Next ---------- */
.page-about .about-next {
  background: var(--night);
  color: var(--paper);
  padding: clamp(44px, 6vw, 76px) 0;
}

.page-about .about-next-title {
  font-size: clamp(22px, 3.2vw, 34px);
  line-height: 1.15;
  margin: 0 0 24px;
  max-width: 20ch;
  color: var(--paper);
}

.page-about .next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Responsive ---------- */
@media (min-width: 620px) {
  .page-about .note-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 880px) {
  .page-about .hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }

  .page-about .hero-facts {
    justify-self: end;
    min-width: 240px;
  }
}

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

  .page-about .split--reverse {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    margin-top: clamp(28px, 4vw, 48px);
  }

  .page-about .split--scope {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: center;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-about .tab-button {
    transition: none;
  }
}
<<<END>>>