.page-about {
  --ab-pad: clamp(44px, 6vw, 84px);
  padding-bottom: clamp(48px, 8vw, 96px);
  background: var(--ink-900);
  color: var(--paper);
}

.page-about .ab-wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.page-about .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: clamp(16px, 3vw, 28px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-about .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

.page-about .ab-link {
  color: var(--neon);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-about .ab-link:hover,
.page-about .ab-link:focus-visible {
  color: var(--amber);
}

/* ---------- Hero ---------- */

.page-about .ab-hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(20px, 4vw, 36px);
  padding-bottom: var(--ab-pad);
  border-bottom: 1px solid var(--line);
}

.page-about .ab-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 88px 88px;
  opacity: 0.28;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 82%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 82%);
}

.page-about .ab-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  padding-top: clamp(20px, 4vw, 40px);
}

.page-about .ab-hero h1 {
  margin: 0.3em 0 0.45em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 7.2vw, 3.7rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-about .ab-hero__lead {
  max-width: 58ch;
  margin: 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--mist);
}

.page-about .ab-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 18px clamp(24px, 4vw, 56px);
  margin: clamp(24px, 4vw, 36px) 0 0;
  padding: 20px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-about .ab-hero__stat b {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--amber);
}

.page-about .ab-hero__stat span {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-about .ab-hero__media {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-about .ab-hero__media::after {
  content: "";
  position: absolute;
  left: 14px;
  bottom: 14px;
  width: 56px;
  height: 2px;
  background: var(--neon);
}

.page-about .ab-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.65) brightness(0.95);
}

@media (min-width: 900px) {
  .page-about .ab-hero__inner {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: start;
    gap: clamp(36px, 5vw, 64px);
  }

  .page-about .ab-hero__media {
    margin-top: 28px;
  }
}

/* ---------- Section shell ---------- */

.page-about .ab-section {
  padding: var(--ab-pad) 0;
  border-bottom: 1px solid var(--line);
}

.page-about .ab-section--band {
  background: var(--ink-800);
}

.page-about .ab-head {
  max-width: 720px;
  margin-bottom: clamp(24px, 4vw, 48px);
}

.page-about .ab-head h2 {
  margin: 0.35em 0 0.45em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 4.2vw, 2.3rem);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-about .ab-head p {
  max-width: 62ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- Brand coordinates ---------- */

.page-about .ab-coord {
  margin: 0;
  border-top: 1px solid var(--line);
}

.page-about .ab-coord__row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .ab-coord__row dt {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--neon);
}

.page-about .ab-coord__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper);
  max-width: 70ch;
}

@media (min-width: 760px) {
  .page-about .ab-coord__row {
    grid-template-columns: 170px 1fr;
    gap: 24px;
    align-items: baseline;
    padding: 18px 0;
  }

  .page-about .ab-coord__row dt {
    font-size: 12px;
    padding-top: 4px;
  }
}

/* ---------- Crew ---------- */

.page-about .ab-crew {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .ab-crew__item {
  padding: clamp(16px, 2.4vw, 22px) 0;
  border-top: 1px solid var(--line);
}

.page-about .ab-crew__item:last-child {
  border-bottom: 1px solid var(--line);
}

.page-about .ab-crew__item:nth-child(1) { --share: 46%; }
.page-about .ab-crew__item:nth-child(2) { --share: 23%; }
.page-about .ab-crew__item:nth-child(3) { --share: 19%; }
.page-about .ab-crew__item:nth-child(4) { --share: 12%; }

.page-about .ab-crew__row {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-about .ab-crew__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.6vw, 36px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--paper);
  transition: color var(--t-fast) var(--ease);
}

.page-about .ab-crew__role {
  margin: 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-about .ab-crew__unit {
  margin-left: auto;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-about .ab-crew__bar {
  position: relative;
  height: 3px;
  margin: 12px 0;
  overflow: hidden;
  background: var(--ink-700);
}

.page-about .ab-crew__bar::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: var(--share, 20%);
  background: var(--neon);
  transition: width var(--t-base) var(--ease), background var(--t-fast) var(--ease);
}

.page-about .ab-crew__desc {
  max-width: 48ch;
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
  transition: color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}

.page-about .ab-crew__item:hover .ab-crew__num {
  color: var(--amber);
}

.page-about .ab-crew__item:hover .ab-crew__bar::after {
  background: var(--teal);
}

.page-about .ab-crew__item:hover .ab-crew__desc {
  color: var(--paper);
}

.page-about .ab-figure {
  margin: 24px 0 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-about .ab-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.7) brightness(0.95);
}

.page-about .ab-figure figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.7;
  color: var(--mist);
}

@media (min-width: 960px) {
  .page-about .ab-crew-layout {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: clamp(32px, 5vw, 64px);
    align-items: start;
  }

  .page-about .ab-crew-layout .ab-figure {
    margin-top: 0;
  }
}

/* ---------- Timeline ---------- */

.page-about .ab-track {
  margin: 0 0 clamp(28px, 4vw, 48px);
  padding: 0;
  list-style: none;
}

.page-about .ab-track__item {
  position: relative;
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 16px;
  padding-bottom: clamp(20px, 3vw, 30px);
}

.page-about .ab-track__item::before {
  content: "";
  position: absolute;
  left: 37px;
  top: 40px;
  bottom: 0;
  width: 1px;
  background: var(--line);
}

.page-about .ab-track__item:last-child::before {
  display: none;
}

.page-about .ab-track__year {
  position: relative;
  z-index: 1;
  display: block;
  height: fit-content;
  padding: 6px 0;
  border: 1px solid var(--line);
  background: var(--ink-900);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  text-align: center;
  color: var(--paper);
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-about .ab-track__body h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-about .ab-track__body p {
  max-width: 62ch;
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .ab-track__item.is-current .ab-track__year {
  border-color: var(--neon);
  color: var(--neon);
  box-shadow: 0 0 0 3px var(--neon-soft);
}

.page-about .ab-track__item.is-current .ab-track__body h3 {
  color: var(--neon);
}

.page-about .ab-figure--wide {
  margin-top: clamp(8px, 2vw, 16px);
}

@media (min-width: 860px) {
  .page-about .ab-track__item {
    grid-template-columns: 96px 1fr;
    gap: 28px;
  }

  .page-about .ab-track__item::before {
    left: 47px;
    top: 44px;
  }

  .page-about .ab-track__year {
    font-size: 14px;
    padding: 7px 0;
  }

  .page-about .ab-track__body h3 {
    font-size: 19px;
  }
}

/* ---------- Rhythm ---------- */

.page-about .ab-rhythm {
  display: grid;
  gap: 16px;
}

.page-about .ab-rhythm__col {
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--line);
  border-top: 2px solid var(--neon);
  background: var(--ink-800);
}

.page-about .ab-rhythm__col:nth-child(2) {
  border-top-color: var(--amber);
}

.page-about .ab-rhythm__col:nth-child(3) {
  border-top-color: var(--violet);
}

.page-about .ab-rhythm__col h3 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-about .ab-rhythm__list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .ab-rhythm__list li {
  display: grid;
  gap: 4px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-about .ab-rhythm__list li:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-about .ab-rhythm__list b {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-about .ab-rhythm__list li:first-child b {
  color: var(--amber);
}

.page-about .ab-rhythm__list span {
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-about .ab-rhythm__note {
  max-width: 74ch;
  margin: clamp(20px, 3vw, 32px) 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

@media (min-width: 820px) {
  .page-about .ab-rhythm {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: start;
  }

  .page-about .ab-rhythm__col:nth-child(2) {
    margin-top: 24px;
  }

  .page-about .ab-rhythm__col:nth-child(3) {
    margin-top: 48px;
  }
}

/* ---------- Range band ---------- */

.page-about .ab-band__inner {
  display: grid;
  gap: clamp(18px, 3vw, 32px);
}

.page-about .ab-band__stat b {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(40px, 8vw, 76px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--neon);
}

.page-about .ab-band__stat:nth-child(2) b {
  font-size: clamp(26px, 4.6vw, 44px);
  letter-spacing: -0.02em;
  color: var(--amber);
}

.page-about .ab-band__stat span {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-about .ab-band__note {
  max-width: 72ch;
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

@media (min-width: 820px) {
  .page-about .ab-band__inner {
    grid-template-columns: repeat(2, 1fr);
    align-items: start;
  }

  .page-about .ab-band__note {
    grid-column: 1 / -1;
    padding-top: 20px;
    border-top: 1px solid var(--line);
  }
}

/* ---------- Reader feedback ---------- */

.page-about .ab-join {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-about .ab-join__copy h2 {
  margin: 0.35em 0 0.5em;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3.8vw, 2rem);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-about .ab-join__copy p {
  max-width: 58ch;
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .ab-join__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.page-about .ab-join__contact {
  margin: 0;
  border-top: 1px solid var(--line);
}

.page-about .ab-join__row {
  display: grid;
  gap: 5px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .ab-join__row dt {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--neon);
}

.page-about .ab-join__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-about .ab-join__row dd.num {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0.01em;
}

@media (min-width: 860px) {
  .page-about .ab-join {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
    gap: clamp(32px, 5vw, 72px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-crew__bar::after,
  .page-about .ab-crew__desc,
  .page-about .ab-crew__num,
  .page-about .ab-track__year {
    transition: none;
  }
}