.page-about {
  --about-num-w: clamp(46px, 6.4vw, 92px);
  --about-gap: clamp(18px, 3vw, 56px);
  background: var(--ink-950);
  color: var(--paper-050);
  overflow-x: clip;
}

.page-about a {
  color: inherit;
  text-decoration: none;
}

.page-about a:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 3px;
}

/* ============ HERO ============ */
.page-about .about-hero {
  position: relative;
  padding: clamp(52px, 8.4vw, 120px) 0 clamp(44px, 6.4vw, 92px);
  background:
    radial-gradient(120% 82% at 84% 0%, rgba(79, 240, 208, 0.11) 0%, rgba(79, 240, 208, 0) 62%),
    linear-gradient(180deg, var(--ink-950) 0%, var(--ink-900) 100%);
  border-bottom: var(--line);
  isolation: isolate;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: clamp(48px, 5.6vw, 84px) clamp(48px, 5.6vw, 84px);
  opacity: 0.34;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0.18) 86%, transparent 100%);
  mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0.18) 86%, transparent 100%);
  pointer-events: none;
}

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

.page-about .about-hero .breadcrumbs {
  margin: 0 0 clamp(26px, 3.6vw, 46px);
  font-size: 12.5px;
  letter-spacing: 0.04em;
}

.page-about .about-hero__title {
  margin: 0 0 clamp(18px, 2.4vw, 30px);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6.2vw, 74px);
  line-height: 1.04;
  letter-spacing: -0.025em;
  max-width: 15em;
  text-wrap: balance;
}

.page-about .about-hero__lede {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.15vw, 18px);
  line-height: 1.85;
  color: var(--paper-050);
  opacity: 0.86;
}

.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(30px, 4.2vw, 58px);
  max-width: 780px;
  background: var(--grid-line);
  border: var(--line);
}

.page-about .about-hero__facts .data-figure {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(14px, 1.9vw, 24px) clamp(14px, 2.1vw, 26px);
  background: var(--ink-900);
}

.page-about .about-hero__facts .data-figure__value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(24px, 3.4vw, 42px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan-400);
}

.page-about .about-hero__facts .data-figure__label {
  font-size: 12px;
  letter-spacing: 0.07em;
  color: var(--gray-400);
}

/* ============ FLOW ============ */
.page-about .about-flow {
  background: var(--ink-900);
}

.page-about .about-chapter {
  position: relative;
  display: grid;
  grid-template-columns: var(--about-num-w) minmax(0, 1fr);
  gap: var(--about-gap);
  width: min(100%, var(--maxw));
  margin: 0 auto;
  padding: clamp(46px, 7.2vw, 108px) var(--edge);
}

.page-about .about-chapter + .about-chapter,
.page-about .about-chapter + .about-timeline,
.page-about .about-timeline + .about-chapter {
  border-top: var(--line);
}

/* rail */
.page-about .about-chapter__rail {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  padding-top: 6px;
}

.page-about .about-chapter__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(19px, 2.3vw, 30px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan-400);
}

.page-about .about-chapter__tag {
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-400);
}

/* .page-about */
.page-about .about-chapter__body {
  min-width: 0;
}

.page-about .about-chapter__title {
  margin: 0 0 clamp(16px, 2vw, 26px);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 3.4vw, 46px);
  line-height: 1.14;
  letter-spacing: -0.018em;
  max-width: 20em;
  text-wrap: balance;
}

.page-about .about-chapter__body > p,
.page-about .about-chapter__text > p {
  margin: 0 0 1.05em;
  max-width: 64ch;
  font-size: clamp(15px, 1.05vw, 17px);
  line-height: 1.86;
  color: var(--paper-050);
  opacity: 0.86;
}

.page-about .about-chapter__body > p:last-child,
.page-about .about-chapter__text > p:last-child {
  margin-bottom: 0;
}

.page-about .about-chapter__body p a {
  color: var(--cyan-400);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-about .about-chapter__figure {
  margin: clamp(26px, 3.4vw, 46px) 0 0;
}

/* ============ ROLES BAR ============ */
.page-about .about-roles {
  display: grid;
  gap: clamp(16px, 2vw, 26px);
  margin: clamp(26px, 3.2vw, 42px) 0 clamp(12px, 1.6vw, 18px);
  padding: clamp(18px, 2.4vw, 30px);
  max-width: 720px;
  background: var(--ink-800);
  border: var(--line);
}

.page-about .about-role__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 10px;
}

.page-about .about-role__name {
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--paper-050);
}

.page-about .about-role__count {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(21px, 2.3vw, 30px);
  line-height: 1;
  color: var(--cyan-400);
}

.page-about .about-role__bar {
  position: relative;
  height: 6px;
  background: var(--ink-700);
  overflow: hidden;
}

.page-about .about-role__fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan-400) 0%, var(--cyan-200) 100%);
}

.page-about .about-role--data .about-role__fill {
  width: 39.5%;
}

.page-about .about-role--ops .about-role__fill {
  width: 60.5%;
}

.page-about .about-roles__note {
  margin: 0;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--gray-400);
}

/* ============ TIMELINE ============ */
.page-about .about-timeline {
  position: relative;
  border-top: var(--line);
  padding: clamp(46px, 7.2vw, 108px) 0 clamp(44px, 6vw, 88px);
  background: var(--ink-950);
  overflow: hidden;
}

.page-about .about-timeline__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: var(--about-num-w) minmax(0, 1fr);
  gap: var(--about-gap);
  width: min(100%, var(--maxw));
  margin: 0 auto;
  padding: 0 var(--edge);
}

.page-about .about-timeline__band {
  position: relative;
  margin-top: clamp(30px, 4vw, 56px);
  padding: clamp(20px, 2.6vw, 38px) var(--edge);
}

.page-about .about-timeline__backdrop {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.18;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 16%, #000 84%, transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0%, #000 16%, #000 84%, transparent 100%);
}

.page-about .about-timeline__list {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(18px, 2.4vw, 34px);
  width: min(100%, var(--maxw));
  margin: 0 auto;
  padding: 0;
  list-style: none;
}

.page-about .about-timeline__item {
  position: relative;
  padding-top: 20px;
  border-top: 1px solid var(--grid-line);
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  top: -3px;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cyan-400);
  box-shadow: 0 0 0 4px rgba(79, 240, 208, 0.12);
  transition: transform 200ms var(--ease);
}

.page-about .about-timeline__item:hover::before,
.page-about .about-timeline__item:focus-within::before {
  transform: scale(1.6);
}

.page-about .about-timeline__year {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(19px, 2.1vw, 26px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan-400);
}

.page-about .about-timeline__heading {
  margin: 0 0 8px;
  font-size: clamp(14.5px, 1.15vw, 16.5px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper-050);
}

.page-about .about-timeline__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--gray-400);
}

/* ============ SPLIT CHAPTER ============ */
.page-about .about-chapter__split {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: clamp(24px, 3.6vw, 58px);
  align-items: start;
}

.page-about .about-chapter__text {
  min-width: 0;
}

.page-about .about-chapter__side {
  width: 100%;
  max-width: 460px;
  justify-self: end;
  margin: 0;
}

/* ============ COVERAGE STATS ============ */
.page-about .about-coverage__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(22px, 3vw, 38px) 0;
  max-width: 800px;
  background: var(--grid-line);
  border: var(--line);
}

.page-about .about-coverage__stats .data-figure {
  background: var(--ink-800);
  padding: clamp(16px, 2.2vw, 28px);
}

.page-about .about-coverage__stats .data-figure__value {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(23px, 3.2vw, 40px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan-400);
}

.page-about .about-coverage__stats .data-figure--goal .data-figure__value {
  color: var(--orange-500);
}

.page-about .about-coverage__stats .data-figure__label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.07em;
  color: var(--gray-400);
}

/* ============ CLOSING LINKS ============ */
.page-about .about-chapter--closing {
  padding-bottom: clamp(64px, 9vw, 140px);
}

.page-about .about-links {
  max-width: 740px;
  margin: clamp(22px, 3vw, 36px) 0 0;
  padding: 0;
  list-style: none;
  border-top: var(--line);
}

.page-about .about-links li {
  border-bottom: var(--line);
}

.page-about .about-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: clamp(15px, 2vw, 23px) 2px;
  color: var(--paper-050);
  transition: color 180ms var(--ease), padding-left 220ms var(--ease);
}

.page-about .about-link:hover,
.page-about .about-link:focus-visible {
  color: var(--cyan-400);
  padding-left: 10px;
}

.page-about .about-link__label {
  font-size: clamp(15px, 1.4vw, 17.5px);
  font-weight: 600;
  letter-spacing: 0.01em;
}

.page-about .about-link__arrow {
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--cyan-400);
  transition: transform 220ms var(--ease);
}

.page-about .about-link:hover .about-link__arrow,
.page-about .about-link:focus-visible .about-link__arrow {
  transform: translateX(5px);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
  .page-about .about-chapter,
  .page-about .about-timeline__inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
  }

  .page-about .about-chapter__rail {
    flex-direction: row;
    align-items: center;
    gap: 14px;
    padding-top: 0;
  }

  .page-about .about-chapter__tag {
    writing-mode: horizontal-tb;
    letter-spacing: 0.24em;
  }

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

  .page-about .about-chapter__side {
    justify-self: start;
    max-width: 100%;
  }

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

@media (max-width: 600px) {
  .page-about .about-hero__facts,
  .page-about .about-coverage__stats {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .page-about .about-hero__title {
    max-width: none;
  }

  .page-about .about-roles {
    padding: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about [data-reveal],
  .page-about .about-role__fill,
  .page-about .about-link,
  .page-about .about-link__arrow,
  .page-about .about-timeline__item::before {
    transition: none !important;
    transform: none !important;
  }
}