.page-about {
  --about-bronze: var(--c-bronze);
  --about-gold: var(--c-gold);
  --about-deep: var(--c-deep);
  --about-panel: var(--c-panel);
  --about-line: var(--c-line);
  --about-text: var(--c-text);
  --about-muted: var(--c-muted);
  background: var(--about-deep);
  color: var(--about-text);
}

.page-about .about-hero {
  position: relative;
  padding: clamp(1.75rem, 4vw, 3.5rem) 0 0;
  border-bottom: 1px solid var(--about-line);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  right: -12%;
  top: 0;
  width: 58%;
  height: 100%;
  background: linear-gradient(135deg, transparent 52%, rgba(122, 90, 248, 0.12));
  clip-path: polygon(28% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
  z-index: 0;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--about-bronze), var(--about-gold), var(--c-cyan));
  opacity: 0.8;
}

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

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  padding: clamp(2.5rem, 6vw, 4.5rem) 0 clamp(2rem, 5vw, 3.5rem);
}

.page-about .about-hero__meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
}

.page-about .about-hero__index {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 10vw, 6rem);
  line-height: 1;
  margin: 0.25rem 0 0.5rem;
  color: transparent;
  -webkit-text-stroke: 1px var(--about-gold);
  user-select: none;
}

.page-about .about-hero__note {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--about-muted);
  margin: 0;
  line-height: 1.7;
}

.page-about .about-hero__main h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 3.6rem);
  line-height: 1.18;
  margin: 0 0 1.25rem;
  color: var(--about-text);
  font-weight: 700;
}

.page-about .about-hero__main h1::after {
  content: "";
  display: block;
  width: 76px;
  height: 4px;
  margin-top: 1.4rem;
  background: linear-gradient(90deg, var(--about-gold), var(--c-cyan));
  border-radius: 2px;
}

.page-about .about-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  padding-top: clamp(2rem, 5vw, 3.5rem);
  padding-bottom: clamp(3rem, 7vw, 5rem);
}

.page-about .about-index {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 0;
  border-top: 2px solid var(--about-line);
  border-bottom: 2px solid var(--about-line);
}

.page-about .about-index__title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  color: var(--about-gold);
  margin: 0;
  text-transform: uppercase;
  flex: 0 0 auto;
}

.page-about .about-index__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
}

.page-about .about-index__nav a {
  color: var(--about-muted);
  font-size: 0.85rem;
  text-decoration: none;
  letter-spacing: 0.03em;
  transition: color 0.2s ease, box-shadow 0.2s ease;
  padding: 0.2rem 0;
}

.page-about .about-index__nav a span {
  color: var(--about-bronze);
  margin-right: 0.3em;
  font-variant-numeric: tabular-nums;
}

.page-about .about-index__nav a:hover,
.page-about .about-index__nav a:focus-visible {
  color: var(--about-text);
  box-shadow: 0 2px 0 var(--c-cyan);
}

.page-about .about-index__nav a[aria-current] {
  color: var(--about-gold);
}

.page-about .about-index__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-left: auto;
}

.page-about .about-index__actions .muted {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 0.25rem 0 0;
}

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

.page-about .about-section {
  position: relative;
  padding: clamp(2.25rem, 5vw, 3.5rem) 0 clamp(2rem, 4vw, 3rem);
  border-top: 3px solid var(--about-line);
}

.page-about .about-section:first-child {
  border-top: none;
  padding-top: 1rem;
}

.page-about .about-section .section-heading {
  margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
}

.page-about .about-story__text p {
  color: var(--about-text);
  line-height: 1.85;
  margin: 0 0 1.15rem;
  max-width: 68ch;
}

.page-about .about-story__text p:last-child {
  margin-bottom: 0;
}

.page-about .about-story__figure {
  margin: 2rem 0 0;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--about-line);
  background: var(--about-panel);
}

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

.page-about .about-story__figure figcaption {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--about-muted);
  padding: 0.65rem 1rem;
  border-top: 1px solid var(--about-line);
  background: rgba(20, 33, 61, 0.6);
}

.page-about .about-timeline {
  position: relative;
  padding-left: 42px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 0.25rem;
  bottom: 0.25rem;
  width: 2px;
  background: linear-gradient(180deg, var(--about-bronze), var(--about-gold));
  opacity: 0.4;
}

.page-about .about-timeline__item {
  position: relative;
  margin-bottom: 1.75rem;
}

.page-about .about-timeline__item:last-child {
  margin-bottom: 0;
}

.page-about .about-timeline__marker {
  position: absolute;
  left: -42px;
  top: 1rem;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 3px solid var(--about-bronze);
  background: var(--about-deep);
  box-shadow: 0 0 0 4px rgba(184, 115, 51, 0.18);
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
}

.page-about .about-timeline__marker span {
  display: none;
}

.page-about .about-timeline__item:hover .about-timeline__marker {
  border-color: var(--about-gold);
  box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.25), 0 0 12px rgba(212, 175, 55, 0.4);
}

.page-about .about-timeline__year {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--about-bronze);
  margin: 0 0 0.5rem;
  line-height: 1.2;
}

.page-about .about-timeline__card {
  background: var(--about-panel);
  border-left: 3px solid transparent;
  padding: 1rem 1.25rem;
  box-shadow: var(--shadow-1);
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

.page-about .about-timeline__item:hover .about-timeline__card {
  border-color: var(--about-gold);
  box-shadow: var(--glow-gold);
  transform: translateX(5px);
}

.page-about .about-timeline__card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
  color: var(--about-text);
}

.page-about .about-timeline__card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--about-muted);
}

.page-about .about-timeline__figure {
  margin: 2.25rem 0 0;
  border: 1px solid var(--about-line);
  overflow: hidden;
  background: var(--about-panel);
}

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

.page-about .about-system {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-about .about-system__text p {
  line-height: 1.85;
  margin: 0 0 1.25rem;
}

.page-about .about-system__figure {
  margin: 0;
  border: 1px solid var(--about-line);
  background: var(--about-panel);
  overflow: hidden;
}

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

.page-about .about-metrics .stat-grid {
  margin-bottom: 1.5rem;
}

.page-about .about-metrics__note {
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--about-muted);
  border-left: 3px solid var(--c-cyan);
  padding: 0.8rem 1rem;
  background: rgba(45, 226, 230, 0.05);
}

.page-about .about-version {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-about .about-version__text p {
  line-height: 1.85;
  margin: 0 0 1.15rem;
}

.page-about .about-version__text p:last-child {
  margin-bottom: 0;
}

.page-about .about-version__principles {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
}

.page-about .about-version__principles li {
  position: relative;
  padding: 0.45rem 0 0.45rem 1.4rem;
  color: var(--about-text);
  font-size: 0.92rem;
  border-bottom: 1px solid rgba(31, 58, 95, 0.5);
}

.page-about .about-version__principles li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.85rem;
  width: 8px;
  height: 8px;
  background: var(--c-cyan);
  transform: rotate(45deg);
}

.page-about .about-review__lead {
  font-size: 1.05rem;
  line-height: 1.85;
  max-width: 70ch;
  margin: 0 0 1.5rem;
}

.page-about .about-review__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.page-about .about-review__cta {
  font-size: 0.92rem;
  line-height: 1.8;
}

.page-about .about-review__cta a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(45, 226, 230, 0.4);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-about .about-review__cta a:hover {
  color: var(--about-gold);
  border-color: var(--about-gold);
}

.page-about .about-readmore {
  margin-top: clamp(2.5rem, 6vw, 4rem);
  padding-top: 1.5rem;
  border-top: 2px dashed var(--about-line);
}

.page-about .about-readmore .muted {
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.page-about .about-readmore__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

@media (min-width: 992px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(200px, 1fr) minmax(0, 3fr);
    gap: clamp(2rem, 5vw, 6rem);
    align-items: end;
  }

  .page-about .about-hero__meta {
    align-items: flex-start;
    padding-bottom: 0.5rem;
  }

  .page-about .about-layout {
    grid-template-columns: minmax(230px, 260px) minmax(0, 1fr);
    gap: clamp(2.5rem, 5vw, 4.5rem);
  }

  .page-about .about-index {
    position: sticky;
    top: 2rem;
    flex-direction: column;
    align-items: stretch;
    gap: 1.75rem;
    padding: 0;
    border: none;
  }

  .page-about .about-index__nav {
    flex-direction: column;
    gap: 0;
  }

  .page-about .about-index__nav a {
    display: flex;
    align-items: baseline;
    gap: 0.9rem;
    padding: 0.7rem 0.5rem;
    border-bottom: 1px solid rgba(31, 58, 95, 0.55);
    font-size: 0.95rem;
  }

  .page-about .about-index__nav a span {
    min-width: 1.8rem;
    font-family: var(--font-display);
    font-size: 0.85rem;
    color: var(--about-bronze);
  }

  .page-about .about-index__actions {
    flex-direction: column;
    margin-left: 0;
    align-items: stretch;
  }

  .page-about .about-index__actions .btn {
    width: 100%;
    text-align: center;
  }

  .page-about .about-section {
    padding-left: clamp(1.5rem, 3vw, 2.5rem);
  }

  .page-about .about-system {
    grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
    align-items: center;
  }

  .page-about .about-version {
    grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  }

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

  .page-about .about-story__figure {
    margin-top: 2.5rem;
  }

  .page-about .about-timeline__card p {
    font-size: 0.95rem;
  }
}