.page-about {
  background: var(--color-paper);
  --about-accent: var(--color-primary);
  --about-navy: var(--color-navy);
}

.page-about .about-hero {
  position: relative;
  background: var(--color-navy);
  color: #fff;
  padding: 2rem 0 2.2rem;
  overflow: hidden;
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(-45deg, transparent 0 14px, rgba(228, 122, 84, 0.12) 14px 15px);
  pointer-events: none;
}
.page-about .about-hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-gold));
}
.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
}
.page-about .about-hero .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  margin-bottom: 2rem;
  color: rgba(255, 255, 255, 0.7);
}
.page-about .about-hero .breadcrumb a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  transition: color var(--transition);
}
.page-about .about-hero .breadcrumb a:hover {
  color: var(--color-primary);
}
.page-about .about-hero__eyebrow {
  color: var(--color-primary);
  margin-bottom: 0.6rem;
  letter-spacing: 0.12em;
}
.page-about .about-hero__title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4.4vw, 2.8rem);
  font-weight: 800;
  font-style: italic;
  line-height: 1.18;
  letter-spacing: 0.02em;
  margin: 0 0 1rem;
  max-width: 21em;
}
.page-about .about-hero__lede {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 700;
  font-style: italic;
  color: var(--color-gold);
  margin: 0 0 0.6rem;
}
.page-about .about-hero__desc {
  max-width: 44em;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.75;
  margin: 0 0 1.6rem;
}
.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.page-about .about-hero__stats .stat {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 0.8rem 0.9rem;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
}
.page-about .about-hero__stats .stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}
.page-about .about-hero__stats .stat__label {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.7);
}
.page-about .about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 1rem;
}
.page-about .about-hero__meta .trust-badge {
  background: var(--color-sage);
  color: #fff;
  padding: 0.3rem 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}
.page-about .about-hero__meta .mono-label {
  color: rgba(255, 255, 255, 0.7);
}

.page-about .about-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  padding-top: 1.5rem;
  padding-bottom: 3.5rem;
}

.page-about .about-index {
  order: -1;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.8rem 0;
}
.page-about .about-index__label {
  color: var(--color-muted);
  letter-spacing: 0.1em;
  margin-bottom: 0.25rem;
}
.page-about .about-index__nav {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  gap: 0.4rem;
  width: 100%;
  padding-bottom: 0.3rem;
}
.page-about .about-index__link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.8rem;
  border: 1px solid var(--color-line);
  color: var(--color-ink);
  text-decoration: none;
  font-size: 0.8rem;
  white-space: nowrap;
  transition: background var(--transition), color var(--transition);
}
.page-about .about-index__link:hover {
  background: var(--color-sage-light);
}
.page-about .about-index__num {
  font-family: var(--font-mono);
  color: var(--color-primary);
}
.page-about .about-index__link[aria-current="true"] {
  background: var(--color-navy);
  color: #fff;
  border-color: var(--color-navy);
}
.page-about .about-index__link[aria-current="true"] .about-index__num {
  color: var(--color-gold);
}
.page-about .about-index__note {
  display: none;
}

.page-about .about-doc {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.page-about .about-sheet {
  position: relative;
  padding: 1.5rem 1rem;
  border: 1px solid var(--color-line);
  background: var(--color-paper);
}
.page-about .about-sheet--sage {
  background: var(--color-sage-light);
}
.page-about .about-sheet--navy {
  background: var(--color-navy);
  color: rgba(255, 255, 255, 0.9);
  border-color: var(--color-navy);
  box-shadow: 12px 12px 32px rgba(29, 53, 87, 0.28);
}
.page-about .about-sheet--charcoal {
  background: var(--color-charcoal);
  color: rgba(255, 255, 255, 0.85);
  border-color: var(--color-charcoal);
}

.page-about .section-heading {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1.2rem;
  padding-bottom: 0.8rem;
  border-bottom: 2px solid currentColor;
}
.page-about .section-heading .section-heading__index {
  font-size: 1.2rem;
  color: var(--color-primary);
}
.page-about .section-heading h2 {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.6vw, 1.8rem);
  font-weight: 800;
  line-height: 1.2;
  margin: 0.2rem 0 0;
}
.page-about .section-heading .mono-label {
  margin-bottom: 0.15rem;
}
.page-about .section-heading--light h2 {
  color: #fff;
}
.page-about .section-heading--light .mono-label {
  color: var(--color-gold);
}

.page-about .about-sheet > p {
  line-height: 1.8;
  margin-bottom: 1.4rem;
}
.page-about .about-sheet--navy > p {
  color: rgba(255, 255, 255, 0.85);
}
.page-about .about-sheet--charcoal > p {
  color: rgba(255, 255, 255, 0.75);
}

.page-about .about-figure {
  margin: 1.2rem 0;
}
.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--color-line);
}
.page-about .about-sheet--navy .about-figure img {
  border-color: rgba(255, 255, 255, 0.2);
}
.page-about .about-figure figcaption {
  margin-top: 0.4rem;
  font-size: 0.78rem;
  color: var(--color-muted);
}
.page-about .about-sheet--navy .about-figure figcaption {
  color: rgba(255, 255, 255, 0.6);
}

.page-about .about-timeline {
  position: relative;
  margin: 1.5rem 0;
}
.page-about .about-timeline::before {
  content: "";
  position: absolute;
  top: 0.6rem;
  bottom: 0.6rem;
  left: 0.43rem;
  width: 2px;
  background: repeating-linear-gradient(to bottom, var(--color-muted) 0 6px, transparent 6px 12px);
}
.page-about .about-milestone {
  position: relative;
  padding: 1.2rem 1rem 1.2rem 2rem;
  margin-bottom: 0.8rem;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid var(--color-line);
}
.page-about .about-sheet--sage .about-milestone {
  background: rgba(255, 255, 255, 0.65);
}
.page-about .about-milestone::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.5rem;
  width: 0.85rem;
  height: 0.85rem;
  background: var(--color-primary);
  transform: rotate(45deg);
  border: 2px solid var(--color-paper);
  z-index: 1;
}
.page-about .about-milestone__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}
.page-about .about-milestone__code {
  color: var(--color-primary);
}
.page-about .about-milestone__tag {
  color: var(--color-muted);
}
.page-about .about-milestone h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.page-about .about-milestone p {
  font-size: 0.92rem;
  line-height: 1.7;
}
.page-about .about-milestone__list {
  list-style: none;
  padding: 0;
  margin: 0.8rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.page-about .about-milestone__list li {
  background: var(--color-sage-light);
  border: 1px solid var(--color-line);
  padding: 0.25rem 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
}
.page-about .about-sheet--sage .about-milestone__list li {
  background: #fff;
}

.page-about .about-callout {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  margin-top: 1.8rem;
  padding: 1.1rem 1.2rem;
  border-left: 4px solid var(--color-primary);
  background: var(--color-sage-light);
}
.page-about .about-callout p {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
}
.page-about .about-callout .btn {
  display: inline-flex;
}

.page-about .about-team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.8rem;
  margin: 1.2rem 0;
}
.page-about .about-team-card {
  background: #fff;
  border: 1px solid var(--color-line);
  border-right: 4px solid var(--color-primary);
  padding: 0.9rem 1rem;
}
.page-about .about-team-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin: 0.25rem 0 0.4rem;
}
.page-about .about-team-card p {
  font-size: 0.85rem;
  line-height: 1.6;
}
.page-about .about-team-card .mono-label {
  color: var(--color-primary);
}

.page-about .about-steps {
  list-style: none;
  counter-reset: step;
  padding: 0;
  margin: 1.2rem 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}
.page-about .about-steps li {
  counter-increment: step;
  position: relative;
  background: #fff;
  border: 1px solid var(--color-line);
  padding: 1rem 1rem 1rem 3.4rem;
}
.page-about .about-steps li::before {
  content: "0" counter(step);
  position: absolute;
  left: 0.8rem;
  top: 1rem;
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
}
.page-about .about-steps h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  margin: 0.15rem 0 0.3rem;
}
.page-about .about-steps p {
  font-size: 0.85rem;
  line-height: 1.6;
}

.page-about .about-modules-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
}
.page-about .about-module-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.6rem;
}
.page-about .about-module-item {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  padding: 0.75rem 0.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.page-about .about-module-item .mono-label {
  color: var(--color-gold);
}
.page-about .about-module-item__info h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  color: #fff;
  margin: 0 0 0.2rem;
}
.page-about .about-module-item__info p {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.5;
}
.page-about .about-module-item__device {
  display: block;
  border-top: 1px dashed rgba(255, 255, 255, 0.2);
  padding-top: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-primary);
}
.page-about .about-modules-note {
  margin-top: 1.4rem;
  padding: 1rem 1.1rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.06);
}
.page-about .about-modules-note .mono-label {
  color: var(--color-gold);
  margin-bottom: 0.3rem;
}
.page-about .about-modules-note p {
  margin: 0;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
}

.page-about .about-feedback-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
  margin: 1.4rem 0;
}
.page-about .about-feedback-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--color-line);
  padding: 1.1rem 1.2rem;
}
.page-about .about-feedback-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 2.5rem;
  height: 2.5rem;
  background: linear-gradient(135deg, var(--color-primary) 50%, transparent 50%);
  pointer-events: none;
}
.page-about .about-feedback-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin: 0.4rem 0;
}
.page-about .about-feedback-card p {
  font-size: 0.88rem;
  line-height: 1.6;
}
.page-about .about-feedback-card__result {
  margin-top: 0.5rem;
  padding-left: 0.8rem;
  border-left: 3px solid var(--color-sage);
  color: var(--color-ink);
}

.page-about .about-trust-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
  margin: 1.4rem 0;
}
.page-about .about-trust-item {
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 1rem;
}
.page-about .about-trust-item .mono-label {
  color: var(--color-gold);
}
.page-about .about-trust-item p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0.4rem 0 0;
}
.page-about .about-contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.7rem;
  margin: 1.5rem 0;
  padding: 1.2rem;
  background: rgba(0, 0, 0, 0.25);
  border-left: 4px solid var(--color-primary);
}
.page-about .about-contact div {
  display: grid;
  gap: 0.2rem;
}
.page-about .about-contact dt {
  font-size: 0.78rem;
  color: var(--color-gold);
}
.page-about .about-contact dd {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: #fff;
  margin: 0;
}
.page-about .about-trust-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.2rem;
}
.page-about .about-sheet--charcoal .about-trust-links .btn--ghost {
  border-color: rgba(255, 255, 255, 0.4);
  color: #fff;
}
.page-about .about-sheet--charcoal .about-trust-links .btn--ghost:hover {
  background: rgba(255, 255, 255, 0.1);
}

@media (min-width: 560px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about .about-module-list {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-about .about-team-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-about .about-steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-about .about-feedback-list {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-about .about-trust-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-about .about-contact {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 900px) {
  .page-about .about-layout {
    grid-template-columns: 15rem minmax(0, 1fr);
    align-items: start;
    gap: 2.5rem;
    padding-top: 2rem;
  }
  .page-about .about-index {
    position: sticky;
    top: 5.5rem;
    order: initial;
    display: block;
    padding: 1rem 0;
  }
  .page-about .about-index__nav {
    flex-direction: column;
    align-items: stretch;
    overflow: visible;
    width: auto;
    gap: 0.25rem;
    padding-bottom: 0;
  }
  .page-about .about-index__link {
    white-space: normal;
    justify-content: flex-start;
    border: none;
    border-left: 3px solid var(--color-line);
    padding: 0.55rem 0.75rem;
    background: transparent;
    font-size: 0.85rem;
  }
  .page-about .about-index__link:hover {
    background: transparent;
    border-left-color: var(--color-primary);
  }
  .page-about .about-index__link[aria-current="true"] {
    background: transparent;
    color: var(--color-ink);
    border-left-color: var(--color-primary);
  }
  .page-about .about-index__link[aria-current="true"] .about-index__num {
    color: var(--color-primary);
  }
  .page-about .about-index__note {
    display: block;
    margin-top: 2rem;
    padding: 1rem;
    background: var(--color-sage-light);
    border-left: 3px solid var(--color-primary);
    font-size: 0.85rem;
    line-height: 1.6;
  }
  .page-about .about-index__note .mono-label {
    color: var(--color-primary);
    margin-bottom: 0.4rem;
  }
  .page-about .about-index__note a {
    display: inline-block;
    margin-top: 0.6rem;
    color: var(--color-primary);
    font-weight: 700;
    text-decoration: none;
  }
  .page-about .about-sheet {
    padding: 2.2rem 2.4rem;
  }
  .page-about .about-modules-grid {
    grid-template-columns: 0.8fr 1.2fr;
    align-items: start;
  }
  .page-about .about-figure--mod img {
    max-height: 34rem;
    object-fit: cover;
  }
}