.page-about {
  --about-red: var(--c-red);
  --about-yellow: var(--c-yellow);
  --about-dark: var(--c-dark);
  --about-warm: var(--c-warm);
  --about-white: var(--c-white);
  --about-navy: var(--c-navy);
  --about-cream: var(--c-cream);
  --about-charcoal: var(--c-charcoal);
  --about-pale-yellow: var(--c-pale-yellow);
  --about-shadow: 6px 6px 0 var(--c-dark);
  --about-shadow-sm: 3px 3px 0 var(--c-dark);
  --about-line: 4px solid var(--c-dark);
  --about-line-thick: 6px solid var(--c-dark);
  background: var(--c-warm);
  color: var(--c-dark);
  font-family: var(--font-body);
  line-height: 1.7;
  overflow-x: hidden;
}

.page-about .container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 14px;
  padding-right: 14px;
}

.page-about a {
  color: var(--c-dark-red);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

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

.page-about .about-breadcrumb {
  padding-top: 12px;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--c-dark);
  background: var(--c-white);
}

.page-about .about-breadcrumb .container {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
}

.page-about .about-breadcrumb__item {
  color: var(--c-charcoal);
}

.page-about .about-breadcrumb__item:last-child {
  color: var(--c-dark);
  font-weight: 700;
}

.page-about .about-hero {
  border-bottom: var(--about-line-thick);
  background: var(--about-red);
  color: var(--c-white);
  position: relative;
}

.page-about .about-hero__inner {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding-top: 28px;
  padding-bottom: 28px;
}

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

.page-about .about-hero__tag {
  display: inline-block;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 12px 4px 14px;
  background: var(--about-yellow);
  color: var(--c-dark);
  border: 2px solid var(--c-dark);
  transform: skewX(-12deg);
}

.page-about .about-hero__tag::before {
  content: "★ ";
  color: var(--c-dark-red);
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-size: clamp(30px, 7vw, 60px);
  line-height: 1.15;
  margin: 0 0 16px;
  text-shadow: 4px 4px 0 rgba(0, 0, 0, 0.35);
}

.page-about .about-hero__lead {
  font-size: clamp(16px, 2.6vw, 20px);
  font-weight: 400;
  max-width: 520px;
  margin: 0 0 20px;
  color: rgba(255, 255, 255, 0.92);
}

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

.page-about .about-hero__meta-item {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  background: rgba(255, 255, 255, 0.18);
  border: 1.5px solid rgba(255, 255, 255, 0.7);
  padding: 3px 9px;
  border-radius: 999px;
  color: var(--c-white);
}

.page-about .about-hero__figure {
  margin: 0;
  border: var(--about-line);
  box-shadow: var(--about-shadow);
  background: var(--c-white);
}

.page-about .about-hero__img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-toc {
  padding-top: 22px;
  padding-bottom: 22px;
  border-bottom: 3px solid rgba(35, 35, 35, 0.15);
  border-radius: 0 0 16px 16px;
  background: var(--c-white);
  box-shadow: var(--about-shadow-sm);
  margin-bottom: 26px;
  position: relative;
  z-index: 3;
}

.page-about .toc__label {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--c-dark-red);
  margin: 0 0 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.page-about .toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 4px;
}

.page-about .toc__link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  color: var(--c-dark);
  background: var(--c-warm);
  border: 2px solid var(--c-dark);
  border-radius: 8px;
  padding: 5px 12px;
  transition: all 0.12s ease;
}

.page-about .toc__link:hover,
.page-about .toc__link.is-active {
  background: var(--about-yellow);
  border-color: var(--c-dark-red);
  transform: translateY(-2px);
  box-shadow: 3px 3px 0 var(--c-dark-red);
}

.page-about .about-section {
  padding-top: 42px;
  padding-bottom: 42px;
  position: relative;
}

.page-about .about-section--yellow {
  background: var(--about-pale-yellow);
  border-top: var(--about-line);
  border-bottom: var(--about-line);
  padding-top: 48px;
  padding-bottom: 48px;
}

.page-about .about-section--cream {
  background: var(--about-cream);
  border-top: var(--about-line);
  border-bottom: var(--about-line);
  padding-top: 48px;
  padding-bottom: 48px;
}

.page-about .about-section__inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-about .about-section__inner--offset {
  padding: 0 10px;
}

.page-about .about-section__header {
  display: flex;
  align-items: baseline;
  gap: 14px;
  border-bottom: 3px solid var(--c-dark);
  padding-bottom: 10px;
}

.page-about .about-section__index {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--c-white);
  background: var(--c-dark);
  padding: 2px 8px;
  transform: skewX(-9deg);
  letter-spacing: -0.02em;
  line-height: 1.3;
  flex-shrink: 0;
}

.page-about .about-section--yellow .about-section__index {
  background: var(--c-red);
}

.page-about .about-section--cream .about-section__index {
  background: var(--c-navy);
}

.page-about .about-section__title {
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 36px);
  line-height: 1.25;
  margin: 0;
}

.page-about .about-section__body {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-about .about-section__lead {
  font-size: clamp(16px, 2vw, 18px);
  color: var(--c-dark);
  margin: 0;
  max-width: 720px;
}

.page-about .about-section__note {
  font-size: 14px;
  color: var(--c-charcoal);
  background: var(--c-white);
  border-left: 6px solid var(--acc, var(--c-yellow));
  border-radius: 0 10px 10px 0;
  padding: 10px 14px;
  margin: 0;
  max-width: 680px;
  box-shadow: var(--about-shadow-sm);
}

.page-about .about-detail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  max-width: 680px;
}

.page-about .about-detail-list__item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--c-white);
  border: 2px solid var(--c-dark);
  border-radius: 10px;
  padding: 10px 14px;
  box-shadow: 3px 3px 0 var(--c-dark);
}

.page-about .about-detail-list__label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--c-dark-red);
  text-transform: uppercase;
}

.page-about .about-detail-list__text {
  font-size: 15px;
  color: var(--c-dark);
}

.page-about .about-tabs {
  margin-top: 6px;
  border: 3px solid var(--c-dark);
  border-radius: 14px;
  background: var(--c-white);
  box-shadow: var(--about-shadow);
  overflow: hidden;
}

.page-about .about-tabs__list {
  display: flex;
  border-bottom: 3px solid var(--c-dark);
  background: var(--c-warm);
}

.page-about .about-tabs__btn {
  flex: 1;
  padding: 10px 8px;
  border: none;
  border-right: 2px solid var(--c-dark);
  background: var(--c-warm);
  color: var(--c-charcoal);
  font-family: var(--font-display);
  font-size: 16px;
  cursor: pointer;
  transition: background 0.12s ease;
}

.page-about .about-tabs__btn:last-child {
  border-right: none;
}

.page-about .about-tabs__btn[aria-selected="true"] {
  background: var(--about-yellow);
  color: var(--c-dark);
  font-weight: 700;
  box-shadow: inset 0 -4px 0 var(--c-dark);
}

.page-about .about-tabs__btn:focus-visible {
  outline: 4px solid var(--c-dark);
  outline-offset: -4px;
}

.page-about .about-tabs__panel {
  padding: 16px 16px 18px;
}

.page-about .about-tabs__panel[hidden] {
  display: none;
}

.page-about .about-tabs__stat {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-dark);
  margin: 0 0 14px;
}

.page-about .about-tabs__stat strong {
  font-size: 20px;
  color: var(--c-dark-red);
  font-family: var(--font-mono);
}

.page-about .about-tabs__note {
  font-size: 13px;
  color: var(--c-charcoal);
  margin: 14px 0 0;
  background: var(--c-pale-yellow);
  border-left: 4px solid var(--c-yellow);
  padding: 8px 10px;
}

.page-about .path-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .path-step {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--c-warm);
  border: 2px solid var(--c-dark);
  border-radius: 999px;
  padding: 4px 12px 4px 4px;
  font-size: 14px;
  font-weight: 600;
}

.page-about .path-step--muted {
  opacity: 0.72;
}

.page-about .path-step--active .path-step__node {
  background: var(--c-red);
  color: var(--c-white);
}

.page-about .path-step__node {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--c-yellow);
  border: 2px solid var(--c-dark);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--c-dark);
}

.page-about .path-step__text {
  color: var(--c-dark);
}

.page-about .about-version-figure {
  margin: 20px 0 0;
  border: 3px solid var(--c-dark);
  box-shadow: var(--about-shadow);
  background: var(--c-white);
}

.page-about .about-version-figure__img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-vtabs {
  border: 3px solid var(--c-dark);
  border-radius: 14px;
  background: var(--c-white);
  box-shadow: var(--about-shadow);
  overflow: hidden;
  margin-top: 18px;
}

.page-about .about-vtabs__list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 3px solid var(--c-dark);
  background: var(--c-warm);
}

.page-about .about-vtabs__btn {
  padding: 10px 4px;
  border: none;
  border-right: 2px solid var(--c-dark);
  background: var(--c-warm);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--c-charcoal);
  cursor: pointer;
  transition: all 0.12s ease;
}

.page-about .about-vtabs__btn:last-child {
  border-right: none;
}

.page-about .about-vtabs__btn[aria-selected="true"] {
  background: var(--c-dark);
  color: var(--c-yellow);
  box-shadow: inset 0 -4px 0 var(--c-yellow);
}

.page-about .about-vtabs__btn:focus-visible {
  outline: 4px solid var(--c-dark);
  outline-offset: -4px;
}

.page-about .about-vtabs__panel[hidden] {
  display: none;
}

.page-about .about-vtabs__content {
  display: flex;
  gap: 14px;
  padding: 16px;
}

.page-about .about-vtabs__version {
  font-family: var(--font-display);
  font-size: 38px;
  color: var(--c-white);
  background: var(--c-red);
  border: 2px solid var(--c-dark);
  box-shadow: 3px 3px 0 var(--c-dark);
  padding: 4px 14px;
  line-height: 1.1;
  flex-shrink: 0;
  align-self: flex-start;
  transform: skewX(-6deg);
  min-width: 84px;
  text-align: center;
}

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

.page-about .about-vtabs__title {
  font-family: var(--font-display);
  font-size: 18px;
  margin: 0 0 6px;
  color: var(--c-dark);
}

.page-about .about-vtabs__text {
  font-size: 14px;
  color: var(--c-charcoal);
  margin: 0;
  max-width: 600px;
}

.page-about .about-capability-figure {
  margin: 0;
  border: 3px solid var(--c-dark);
  box-shadow: var(--about-shadow);
  background: var(--c-white);
  align-self: flex-start;
}

.page-about .about-capability-figure__img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .capability-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .capability-card {
  background: var(--c-white);
  border: 3px solid var(--c-dark);
  border-radius: 14px;
  padding: 18px 16px;
  box-shadow: var(--about-shadow);
  transition: transform 0.12s ease;
}

.page-about .capability-card:hover {
  transform: translateY(-4px);
}

.page-about .capability-card--primary {
  background: var(--c-red);
  border-color: var(--c-dark);
  color: var(--c-white);
  box-shadow: 6px 6px 0 var(--c-dark);
}

.page-about .capability-card--primary .capability-card__title {
  color: var(--c-white);
}

.page-about .capability-card--primary .capability-card__text {
  color: rgba(255, 255, 255, 0.92);
}

.page-about .capability-card--yellow {
  background: var(--c-yellow);
}

.page-about .capability-card--dark {
  background: var(--c-dark);
  border-color: var(--c-dark);
  color: var(--c-white);
  box-shadow: 6px 6px 0 var(--c-red);
}

.page-about .capability-card--dark .capability-card__title {
  color: var(--c-white);
}

.page-about .capability-card--dark .capability-card__text {
  color: rgba(255, 255, 255, 0.9);
}

.page-about .capability-card--navy {
  background: var(--c-navy);
  border-color: var(--c-dark);
  color: var(--c-white);
  box-shadow: 6px 6px 0 var(--c-yellow);
}

.page-about .capability-card--navy .capability-card__title {
  color: var(--c-yellow);
}

.page-about .capability-card--navy .capability-card__text {
  color: rgba(255, 255, 255, 0.9);
}

.page-about .capability-card__num {
  font-family: var(--font-display);
  font-size: 40px;
  line-height: 1.1;
  display: block;
  margin-bottom: 6px;
  color: inherit;
}

.page-about .capability-card__title {
  font-family: var(--font-display);
  font-size: 18px;
  margin: 0 0 4px;
  color: var(--c-dark);
}

.page-about .capability-card__text {
  font-size: 14px;
  margin: 0;
  color: var(--c-charcoal);
}

.page-about .about-cta {
  background: var(--c-dark);
  color: var(--c-white);
  border-top: 6px solid var(--c-red);
  padding: 44px 0;
}

.page-about .about-cta__inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-about .about-cta__copy {
  max-width: 480px;
}

.page-about .about-cta__tag {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  z-index: 1;
}

.page-about .about-cta__title {
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 30px);
  margin: 0 0 10px;
  color: var(--c-yellow);
}

.page-about .about-cta__text {
  font-size: 15px;
  margin: 0;
  color: rgba(255, 255, 255, 0.85);
}

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

.page-about .about-cta__link {
  text-decoration: none;
  font-size: 15px;
}

.page-about .about-cta__link.btn--primary {
  background: var(--c-red);
  color: var(--c-white);
  border: 2px solid var(--c-dark);
  box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.45);
}

.page-about .btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 10px;
  font-weight: 600;
  font-family: var(--font-body);
  transition: all 0.12s ease;
}

.page-about .about-cta__link.btn--ghost {
  background: transparent;
  color: var(--c-white);
  border: 2px solid rgba(255, 255, 255, 0.8);
}

.page-about .about-cta__link.btn--ghost:hover {
  background: var(--c-yellow);
  color: var(--c-dark);
  border-color: var(--c-yellow);
}

.page-about .about-cta__link.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.45);
}

.page-about .about-cta__link:focus-visible {
  outline: 4px solid var(--c-yellow);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-toc__link,
  .page-about .capability-card,
  .page-about .about-cta__link.btn--ghost,
  .page-about .about-cta__link.btn--primary {
    transition: none;
  }

  .page-about .about-toc__link:hover,
  .page-about .about-toc__link.is-active,
  .page-about .capability-card:hover,
  .page-about .about-cta__link.btn--ghost:hover,
  .page-about .about-cta__link.btn--primary:hover {
    transform: none;
    box-shadow: none;
  }
}

@media (min-width: 640px) {
  .page-about .container {
    padding-left: 20px;
    padding-right: 20px;
  }

  .page-about .about-hero__inner {
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .page-about .about-detail-list {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .about-tabs__panel {
    padding: 20px 22px;
  }

  .page-about .about-vtabs__content {
    padding: 20px 22px;
  }

  .page-about .path-step {
    font-size: 15px;
  }

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

  .page-about .about-cta__inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }

  .page-about .about-cta__actions {
    max-width: 320px;
    justify-content: flex-end;
  }
}

@media (min-width: 1024px) {
  .page-about .container {
    padding-left: 24px;
    padding-right: 24px;
  }

  .page-about .about-hero__inner {
    flex-direction: row;
    align-items: center;
    gap: 36px;
    padding-top: 52px;
    padding-bottom: 52px;
  }

  .page-about .about-hero__copy {
    flex: 0 0 42%;
  }

  .page-about .about-hero__figure {
    flex: 1;
    margin-top: 0;
  }

  .page-about .about-hero__title {
    font-size: clamp(40px, 5vw, 60px);
  }

  .page-about .about-section {
    padding-top: 58px;
    padding-bottom: 58px;
  }

  .page-about .about-section--left .about-section__inner {
    flex-direction: row;
    align-items: flex-start;
    gap: 42px;
  }

  .page-about .about-section--left .about-section__header {
    flex: 0 0 260px;
    border-bottom: none;
    border-right: 3px solid var(--c-dark);
    padding-bottom: 0;
    padding-right: 18px;
    margin-top: 8px;
  }

  .page-about .about-section--left .about-section__body {
    flex: 1;
  }

  .page-about .about-section--left .about-section__inner {
    transform: translateX(0);
  }

  .page-about .about-section--right .about-section__inner {
    flex-direction: row;
    align-items: flex-start;
    justify-content: flex-end;
    gap: 42px;
  }

  .page-about .about-section--right .about-section__header {
    flex: 0 0 260px;
    order: 2;
    border-bottom: none;
    border-left: 3px solid var(--c-dark);
    padding-bottom: 0;
    padding-left: 18px;
    margin-top: 8px;
    text-align: right;
  }

  .page-about .about-section--right .about-section__header .about-section__index {
    display: none;
  }

  .page-about .about-section--right .about-section__body {
    flex: 1;
    order: 1;
  }

  .page-about .about-section__index {
    font-size: 26px;
    margin-right: 4px;
  }

  .page-about .about-section--right .about-section__index {
    margin-left: auto;
  }

  .page-about .about-section__title {
    font-size: clamp(28px, 3vw, 38px);
  }

  .page-about .about-version-figure {
    margin-top: 24px;
  }

  .page-about .about-vtabs__content {
    padding: 24px 28px;
  }

  .page-about .about-vtabs__version {
    font-size: 48px;
    min-width: 96px;
  }

  .page-about .about-vtabs__title {
    font-size: 22px;
  }

  .page-about .about-vtabs__text {
    font-size: 15px;
  }

  .page-about .capability-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }

  .page-about .capability-card {
    padding: 22px 18px;
  }

  .page-about .about-cta {
    padding: 56px 0;
  }

  .page-about .about-cta__actions {
    max-width: 300px;
    flex-direction: column;
    align-items: stretch;
  }

  .page-about .about-cta__link {
    justify-content: center;
  }
}

.page-about {
  --acc: currentColor;
}