.page-about {
  --about-rail-w: minmax(0, 300px);
  --about-gap: clamp(1.5rem, 4vw, 4rem);
  --about-border: rgba(201, 168, 76, 0.34);
  --about-card-bg: rgba(26, 26, 46, 0.72);
  color: var(--color-text);
  font-family: var(--font-body);
  background: var(--color-bg);
  overflow-x: clip;
  line-height: 1.6;
}

.page-about .breadcrumb {
  position: relative;
  z-index: 2;
  padding-top: 1rem;
}

.page-about .breadcrumb__link {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.24s var(--ease);
}

.page-about .breadcrumb__link:hover {
  color: var(--color-gold);
}

.page-about .page-title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 6vw, 4.2rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0.25rem 0 1.25rem;
}

.page-about .page-lead {
  max-width: 42em;
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--color-text-dim);
  margin: 0 0 2.25rem;
}

.page-about .section__kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.page-about .section__kicker::before {
  content: "";
  width: 2.2em;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  transform: skewX(-18deg);
  flex: 0 0 auto;
}

.page-about .section__title {
  font-family: var(--font-heading);
  font-size: clamp(1.7rem, 3.2vw, 2.7rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: 0;
}

.page-about .section__index {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  letter-spacing: 0.14em;
  color: var(--color-gold);
  margin: 0 0 0.25rem;
  padding-left: 0.85rem;
  border-left: 3px solid var(--color-accent);
}

.page-about .index-note {
  font-family: var(--font-data);
  font-size: 0.78rem;
  line-height: 1.65;
  letter-spacing: 0.05em;
  color: var(--color-text-dim);
  margin: 0;
}

.page-about__hero {
  position: relative;
  padding: clamp(2.25rem, 6vw, 5.5rem) 0 3.25rem;
  background:
    linear-gradient(135deg, rgba(0, 255, 163, 0.07) 0%, transparent 42%),
    var(--color-bg);
  border-bottom: 1px solid var(--about-border);
}

.page-about__hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(120deg, transparent 0%, transparent 64%, rgba(201, 168, 76, 0.14) 64%, rgba(201, 168, 76, 0.14) 65%, transparent 65%),
    linear-gradient(0deg, transparent 0%, transparent 88%, rgba(0, 255, 163, 0.5) 88%, transparent 88.4%);
}

.page-about__hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: min(420px, 38vw);
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
}

.page-about__hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap);
}

.page-about__hero-rail {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  border-left: 2px solid var(--color-accent);
  padding-left: 1rem;
}

.page-about__hero-code {
  margin: 0;
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  line-height: 1.8;
  color: var(--color-text-dim);
  text-transform: uppercase;
}

.page-about__hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.9rem;
  max-width: 780px;
}

.page-about__stat {
  padding: 1rem 1.1rem;
  background: var(--about-card-bg);
  border: 1px solid var(--about-border);
  border-left: 3px solid var(--color-accent);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.page-about__stat-num {
  display: block;
  font-family: var(--font-data);
  font-size: clamp(1.9rem, 5vw, 3.1rem);
  font-weight: 600;
  line-height: 1;
  color: var(--color-accent);
}

.page-about__stat-label {
  display: block;
  margin-top: 0.55rem;
  font-size: 0.825rem;
  color: var(--color-text-dim);
}

.page-about__anchors {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.25rem;
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(168, 184, 216, 0.16);
}

.page-about__anchor-link {
  font-family: var(--font-data);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--color-accent);
  text-decoration: none;
  position: relative;
  padding-left: 1em;
}

.page-about__anchor-link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.5em;
  height: 2px;
  background: var(--color-gold);
}

.page-about__anchor-link:hover {
  color: var(--color-gold);
}

.page-about__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap);
}

.page-about__grid-index {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  align-items: flex-start;
}

.page-about__intro {
  padding-top: clamp(3rem, 7vw, 5.5rem);
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
}

.page-about__intro-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 2.25rem;
}

.page-about__intro-copy p {
  margin: 0 0 1.1rem;
  color: var(--color-text-dim);
}

.page-about__intro-copy p:first-child {
  color: var(--color-text);
  font-size: 1.06rem;
}

.page-about__intro-figure,
.page-about__tech-figure {
  margin: 0;
}

.page-about__img-framed {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid rgba(201, 168, 76, 0.35);
  box-shadow: var(--shadow);
}

.page-about__figcap {
  margin-top: 0.6rem;
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--color-text-dim);
}

.page-about__timeline-section {
  padding-top: clamp(3rem, 7vw, 5.5rem);
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
  background:
    linear-gradient(180deg, rgba(0, 27, 46, 0.96), rgba(0, 27, 46, 0.92)),
    var(--color-bg-deep);
  border-top: 1px solid var(--about-border);
  border-bottom: 1px solid var(--about-border);
}

.page-about__timeline-img {
  display: none;
}

.page-about__timeline {
  list-style: none;
  margin: 2.5rem 0 0;
  padding: 0;
  position: relative;
}

.page-about__timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 12px;
  bottom: 24px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-accent), var(--color-gold) 72%, transparent);
}

.page-about__timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 1.1rem;
  padding: 0 0 1.85rem 2rem;
}

.page-about__timeline-item:last-child {
  padding-bottom: 0;
}

.page-about__timeline-item::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 5px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(0, 255, 163, 0.14);
}

.page-about__timeline-year {
  font-family: var(--font-data);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.06em;
  color: var(--color-gold);
  padding-top: 0.35rem;
}

.page-about__timeline-card {
  background: rgba(10, 25, 47, 0.66);
  border: 1px solid rgba(201, 168, 76, 0.28);
  border-radius: 0 10px 10px 10px;
  padding: 1.05rem 1.15rem;
  box-shadow: var(--shadow);
  transition: transform 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-about__timeline-item:hover .page-about__timeline-card {
  transform: translateY(-3px);
  border-color: rgba(0, 255, 163, 0.55);
}

.page-about__timeline-card h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.page-about__timeline-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-dim);
}

.page-about__credentials {
  padding-top: clamp(3rem, 7vw, 5.5rem);
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
}

.page-about__creds-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
  margin-top: 2.25rem;
}

.page-about__creds-card {
  padding: 1.4rem 1.5rem;
}

.page-about__creds-card {
  background: var(--about-card-bg);
  border: 1px solid var(--about-border);
  border-radius: 2px 14px 2px 14px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: border-color 0.24s var(--ease);
}

.page-about__creds-card:hover {
  border-color: rgba(0, 255, 163, 0.5);
}

.page-about__creds-key {
  margin: 0 0 0.55rem;
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold);
}

.page-about__creds-card h3 {
  margin: 0 0 0.6rem;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  line-height: 1.3;
}

.page-about__creds-card p:last-child {
  margin-bottom: 0;
  font-size: 0.92rem;
  color: var(--color-text-dim);
}

.page-about__creds-cta {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem 1.25rem;
  padding: 1.1rem 0 0;
  border-top: 1px dashed rgba(168, 184, 216, 0.28);
}

.page-about__creds-cta p {
  margin: 0;
  flex: 1 1 100%;
  font-size: 0.92rem;
  color: var(--color-text-dim);
}

.page-about__tech {
  padding-top: clamp(3rem, 7vw, 5.5rem);
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
  background:
    linear-gradient(rgba(0, 27, 46, 0.92), rgba(0, 27, 46, 0.9)),
    var(--color-bg-deep);
  border-top: 1px solid rgba(0, 255, 163, 0.22);
  border-bottom: 1px solid rgba(201, 168, 76, 0.18);
  position: relative;
  overflow: hidden;
}

.page-about__tech::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 38%;
  height: 1px;
  background: linear-gradient(270deg, var(--color-accent), transparent);
}

.page-about__tech-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  margin-top: 2.25rem;
}

.page-about__tech-list {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}

.page-about__tech-list li {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 1rem;
  align-items: start;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid rgba(168, 184, 216, 0.16);
}

.page-about__tech-key {
  font-family: var(--font-data);
  font-weight: 600;
  font-size: 1.05rem;
  line-height: 1.3;
  color: var(--color-accent);
}

.page-about__tech-list p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--color-text-dim);
}

.page-about__tech-note {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text);
  border-left: 2px solid var(--color-gold);
  padding-left: 1rem;
}

.page-about__tech-figure {
  align-self: start;
}

.page-about__ecosystem {
  padding-top: clamp(3rem, 7vw, 5.5rem);
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
}

.page-about__eco-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
  margin-top: 2.25rem;
}

.page-about__eco-card {
  padding: 1.5rem;
  background: var(--about-card-bg);
  border: 1px solid var(--about-border);
  border-radius: 14px 2px 14px 2px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-about__eco-card:hover {
  transform: translateY(-3px);
  border-color: rgba(0, 255, 163, 0.5);
}

.page-about__eco-num {
  display: block;
  margin-bottom: 0.85rem;
  font-family: var(--font-data);
  font-size: 2rem;
  line-height: 1;
  color: rgba(201, 168, 76, 0.55);
}

.page-about__eco-card h3 {
  margin: 0 0 0.6rem;
  font-family: var(--font-heading);
  font-size: 1.08rem;
  line-height: 1.3;
}

.page-about__eco-card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--color-text-dim);
}

.page-about__eco-cta {
  margin-top: 2.25rem;
  padding: 1.4rem 1.5rem;
  border: 1px solid rgba(0, 255, 163, 0.28);
  background: linear-gradient(120deg, rgba(0, 255, 163, 0.09), transparent 62%);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.page-about__eco-cta p {
  flex: 1 1 100%;
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
  color: var(--color-text-dim);
}

@media (min-width: 768px) {
  .page-about__hero-grid {
    grid-template-columns: var(--about-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-about__hero-stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about__grid {
    grid-template-columns: var(--about-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-about__intro-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(260px, 0.85fr);
    align-items: start;
  }

  .page-about__creds-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about__tech-grid {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.9fr);
    align-items: start;
  }

  .page-about__eco-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 992px) {
  .page-about__timeline-img {
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
    object-fit: cover;
    border: 1px solid rgba(201, 168, 76, 0.22);
    opacity: 0.6;
    margin-top: 0.5rem;
  }

  .page-about__timeline-item {
    grid-template-columns: 6rem minmax(0, 1fr);
    padding-left: 2.25rem;
  }

  .page-about__timeline-year {
    font-size: 1rem;
  }

  .page-about__creds-cta p {
    flex: 1 1 auto;
    margin-bottom: 0;
  }
}

@media (min-width: 1200px) {
  .page-about__hero {
    padding-top: clamp(3.5rem, 6vw, 6rem);
  }

  .page-about__intro-grid {
    gap: 2.75rem;
  }

  .page-about__tech-grid {
    gap: 2.75rem;
  }
}