.page-about {
  --about-glow: rgba(123, 47, 247, 0.14);
  --about-gold-line: rgba(212, 167, 74, 0.28);
  padding: 2rem 1.25rem 4rem;
  background:
    radial-gradient(ellipse at 12% 6%, rgba(123, 47, 247, 0.08) 0%, transparent 52%),
    radial-gradient(ellipse at 88% 42%, rgba(212, 167, 74, 0.06) 0%, transparent 45%);
}

.page-about .breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
  font-size: 0.85rem;
  color: var(--mountain-line);
}
.page-about .breadcrumb a {
  color: var(--desert-gold);
  text-decoration: none;
}
.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible {
  color: var(--electric-blue);
  outline: none;
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 78% 18%, rgba(123, 47, 247, 0.38) 0%, transparent 46%),
    linear-gradient(125deg, var(--dark-void) 0%, var(--rock-gray) 62%, var(--mountain-line) 130%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
  margin-bottom: 2.25rem;
}
.page-about .about-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.32;
  z-index: 0;
}
.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  padding: 3rem 1.5rem 2.6rem;
}
.page-about .about-hero__kicker {
  font-family: var(--font-num);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.85rem;
  color: var(--desert-gold);
  margin: 0 0 1rem;
}
.page-about .about-hero h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2rem, 6vw, 3.9rem);
  line-height: 1.14;
  color: var(--sand-dune);
  max-width: 15em;
  margin: 0 0 1.25rem;
  transform: skewX(-2deg);
}
.page-about .about-hero__lead {
  font-size: 1.05rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.82);
  max-width: 42em;
  margin: 0 0 2rem;
}
.page-about .about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.page-about .about-hero__meta span {
  border: 1px solid var(--mountain-line);
  border-radius: 100px;
  padding: 0.38rem 0.9rem;
  font-size: 0.82rem;
  color: var(--desert-gold);
  background: rgba(18, 20, 28, 0.35);
}

.page-about .about-chapters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 3rem;
  padding-bottom: 0.25rem;
}
.page-about .about-chapters a {
  font-size: 0.86rem;
  color: var(--sand-dune);
  border: 1px solid var(--mountain-line);
  border-radius: var(--radius);
  padding: 0.55rem 0.9rem;
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}
.page-about .about-chapters a:hover,
.page-about .about-chapters a:focus-visible {
  border-color: var(--electric-blue);
  color: var(--electric-blue);
  outline: none;
}

.page-about .about-timeline {
  position: relative;
}
.page-about .about-timeline::before {
  content: "";
  display: none;
  position: absolute;
  left: 50%;
  transform: translateX(-1px);
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--desert-gold) 0%, var(--mountain-line) 46%, var(--arena-purple) 100%);
  opacity: 0.55;
}

.page-about .timeline-node {
  margin-bottom: 2.75rem;
  position: relative;
}
.page-about .timeline-node__meta {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1rem;
}
.page-about .timeline-node__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
  border: 2px solid var(--desert-gold);
  border-radius: 50%;
  font-family: var(--font-num);
  font-weight: 900;
  font-size: 1.05rem;
  color: var(--desert-gold);
  background: var(--dark-void);
  box-shadow: 0 0 0 4px var(--about-glow);
}
.page-about .timeline-node__year {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 1.45rem;
  letter-spacing: 0.08em;
  color: var(--sand-dune);
}
.page-about .timeline-node__content {
  background: linear-gradient(135deg, var(--rock-gray) 0%, var(--dark-void) 100%);
  border-radius: var(--radius);
  border-left: 3px solid var(--desert-gold);
  padding: 1.6rem 1.4rem;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.18);
}
.page-about .timeline-node__content h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.3rem;
  line-height: 1.3;
  color: var(--sand-dune);
  margin: 0 0 0.9rem;
  transform: skewX(-2deg);
}
.page-about .timeline-node__content p {
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.78);
  margin: 0 0 1rem;
}
.page-about .timeline-node__content p:last-child {
  margin-bottom: 0;
}
.page-about .timeline-node__figure {
  margin: 1.4rem 0;
}
.page-about .timeline-node__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  object-fit: cover;
}
.page-about .timeline-node__figure figcaption {
  font-size: 0.8rem;
  line-height: 1.5;
  text-align: center;
  color: rgba(255, 255, 255, 0.55);
  margin-top: 0.55rem;
}

.page-about .about-data-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.8rem;
  margin-top: 1.4rem;
}
.page-about .about-data-item {
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid var(--mountain-line);
  border-radius: 10px;
  padding: 0.9rem 0.6rem;
  text-align: center;
}
.page-about .about-data-item__num {
  display: block;
  font-family: var(--font-num);
  font-weight: 900;
  font-size: 1.75rem;
  line-height: 1.1;
  color: var(--desert-gold);
}
.page-about .about-data-item__label {
  display: block;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.62);
  margin-top: 0.28rem;
}

.page-about .about-quote {
  position: relative;
  background: var(--sand-dune);
  border-radius: var(--radius);
  padding: 2.4rem 1.6rem;
  margin: 3.2rem 0;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}
.page-about .about-quote::after {
  content: "";
  position: absolute;
  bottom: 30px;
  right: 1.75rem;
  width: 4rem;
  height: 3px;
  background: var(--arena-purple);
  transform: skewX(-40deg);
  opacity: 0.75;
}
.page-about .about-quote__label {
  font-family: var(--font-num);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-size: 0.82rem;
  color: var(--mountain-line);
  margin: 0 0 0.6rem;
}
.page-about .about-quote blockquote {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.35rem;
  line-height: 1.55;
  color: var(--dark-void);
  margin: 0 0 0.85rem;
  max-width: 20em;
  transform: skewX(-2deg);
}
.page-about .about-quote__source {
  font-size: 0.88rem;
  color: var(--mountain-line);
  margin: 0;
}

.page-about .about-credentials {
  margin: 3.2rem 0;
}
.page-about .about-credentials .section-header {
  margin-bottom: 1.8rem;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--mountain-line);
}
.page-about .about-credentials__grid {
  display: grid;
  gap: 1.25rem;
}
.page-about .about-credentials__card {
  position: relative;
  background: var(--rock-gray);
  border-radius: var(--radius);
  padding: 1.6rem 1.4rem;
  overflow: hidden;
}
.page-about .about-credentials__card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  border-style: solid;
  border-width: 0 22px 22px 0;
  border-color: transparent var(--mountain-line) transparent transparent;
}
.page-about .about-credentials__card h3 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.05rem;
  color: var(--desert-gold);
  margin: 0 0 0.7rem;
}
.page-about .about-credentials__card p {
  font-size: 0.94rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.78);
  margin: 0;
}
.page-about .about-credentials__card--gold {
  background: linear-gradient(135deg, var(--desert-gold) 0%, var(--mountain-line) 130%);
}
.page-about .about-credentials__card--gold::before {
  border-color: transparent rgba(18, 20, 28, 0.3) transparent transparent;
}
.page-about .about-credentials__card--gold h3 {
  color: var(--dark-void);
}
.page-about .about-credentials__card--gold p {
  color: rgba(18, 20, 28, 0.85);
}

.page-about .about-explore {
  margin-top: 3.5rem;
}
.page-about .about-explore h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.45rem;
  color: var(--sand-dune);
  margin: 0 0 1.4rem;
  transform: skewX(-2deg);
}
.page-about .about-explore__grid {
  display: grid;
  gap: 0.9rem;
}
.page-about .about-explore__card {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  background: var(--rock-gray);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.page-about .about-explore__card:hover,
.page-about .about-explore__card:focus-visible {
  border-color: var(--electric-blue);
  transform: translateX(4px);
  outline: none;
}
.page-about .about-explore__index {
  font-family: var(--font-num);
  font-weight: 900;
  font-size: 1.25rem;
  color: var(--desert-gold);
}
.page-about .about-explore__card strong {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1rem;
  color: var(--sand-dune);
}
.page-about .about-explore__card > span:last-child {
  margin-left: auto;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.52);
}

.page-about .scroll-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 20;
  border: none;
  border-radius: 100px;
  padding: 0.6rem 1rem;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--dark-void);
  background: var(--desert-gold);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
}
.page-about .scroll-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

@media (min-width: 768px) {
  .page-about .about-data-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

@media (min-width: 900px) {
  .page-about {
    padding-top: 3rem;
    padding-bottom: 5rem;
  }
  .page-about .about-hero__inner {
    padding: 5rem 4rem 3.6rem;
  }
  .page-about .about-hero h1 {
    font-size: clamp(3rem, 5vw, 4.4rem);
  }
  .page-about .about-chapters {
    margin-bottom: 4rem;
  }
  .page-about .about-timeline::before {
    display: block;
  }
  .page-about .timeline-node {
    display: grid;
    grid-template-columns: 1fr 160px 1fr;
    gap: 2.5rem;
    align-items: start;
    margin-bottom: 4rem;
  }
  .page-about .timeline-node__meta {
    grid-column: 2;
    grid-row: 1;
    flex-direction: column;
    gap: 0.5rem;
    margin: 0;
    text-align: center;
  }
  .page-about .timeline-node__num {
    width: 62px;
    height: 62px;
    flex-basis: 62px;
    font-size: 1.35rem;
  }
  .page-about .timeline-node__year {
    font-size: 1.15rem;
  }
  .page-about .timeline-node--left .timeline-node__content {
    grid-column: 1;
    grid-row: 1;
  }
  .page-about .timeline-node--right .timeline-node__content {
    grid-column: 3;
    grid-row: 1;
  }
  .page-about .timeline-node__content {
    padding: 2rem 1.8rem;
  }
  .page-about .about-credentials__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.4rem;
  }
  .page-about .about-explore__grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about .about-explore__card {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.45rem;
    padding: 1.4rem;
  }
  .page-about .about-explore__card > span:last-child {
    margin-left: 0;
  }
  .page-about .about-quote {
    padding: 3rem 3.5rem;
  }
  .page-about .about-quote blockquote {
    font-size: 1.6rem;
  }
}