.page-about {
  --about-line: rgba(11, 61, 46, 0.18);
  --about-texture: repeating-linear-gradient(135deg, rgba(11, 61, 46, 0.03) 0 1px, transparent 1px 7px);
  background-color: var(--ai-paper);
  background-image: var(--about-texture);
  color: var(--ai-ink);
}

.page-about__content {
  min-width: 0;
}

.page-about__hero {
  position: relative;
  background: linear-gradient(155deg, var(--ai-green) 0%, var(--ai-green-2) 68%, var(--ai-gold) 160%);
  color: var(--ai-cream);
  padding: 52px 0 72px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), 0 100%);
}

.page-about__hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--about-texture);
  opacity: 0.4;
  pointer-events: none;
}

.page-about__hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 36px;
}

.page-about__hero-copy .kicker {
  color: var(--ai-gold-light);
  margin-bottom: 10px;
}

.page-about__hero h1 {
  font-family: var(--ai-serif);
  font-size: clamp(1.8rem, 5vw, 3rem);
  line-height: 1.2;
  margin: 0 0 18px;
  max-width: 720px;
}

.page-about__hero-lead {
  font-family: var(--ai-sans);
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  line-height: 1.75;
  color: rgba(245, 240, 230, 0.88);
  max-width: 620px;
  margin-bottom: 28px;
}

.page-about__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-about__hero-file {
  background: var(--ai-cream);
  color: var(--ai-ink);
  border: 3px solid var(--ai-gold);
  box-shadow: 8px 8px 0 rgba(11, 61, 46, 0.28);
  padding: 22px 20px;
  max-width: 360px;
}

.page-about__hero-file-ticket {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border-bottom: 2px dashed var(--about-line);
  padding-bottom: 12px;
  margin-bottom: 12px;
}

.page-about__hero-file-code {
  font-family: var(--ai-mono);
  font-size: 0.85rem;
  color: var(--ai-green-2);
}

.page-about__hero-file-list {
  margin: 0;
  display: grid;
  gap: 6px;
}

.page-about__hero-file-item {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.95rem;
}

.page-about__hero-file-item dt {
  color: var(--ai-green-2);
  font-weight: 600;
}

.page-about__hero-file-item dd {
  font-family: var(--ai-mono);
  margin: 0;
  font-weight: 700;
}

.page-about__hero-file-note {
  margin-top: 14px;
  font-size: 0.88rem;
  color: var(--ai-green);
  border-left: 3px solid var(--ai-gold);
  padding-left: 10px;
}

.page-about__layout {
  display: block;
  padding-top: 0;
  padding-bottom: 72px;
}

.page-about__index {
  display: none;
}

.page-about__section {
  padding-top: 44px;
  padding-bottom: 44px;
  border-bottom: 1px solid var(--about-line);
  scroll-margin-top: 140px;
}

.page-about__section-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 26px;
  border-bottom: 3px solid var(--ai-green);
  padding-bottom: 8px;
}

.page-about__section-num {
  font-family: var(--ai-serif);
  font-size: clamp(2.4rem, 8vw, 4.6rem);
  line-height: 0.9;
  color: var(--ai-gold);
  text-shadow: 2px 2px 0 var(--ai-green);
  letter-spacing: -0.02em;
}

.page-about__section-title {
  font-family: var(--ai-serif);
  font-size: clamp(1.45rem, 4vw, 2.2rem);
  line-height: 1.2;
  color: var(--ai-green);
  margin: 0;
}

.page-about__mission-grid {
  display: grid;
  gap: 28px;
}

.page-about__mission-copy {
  min-width: 0;
}

.page-about__mission-copy .body-text {
  margin-top: 0;
  margin-bottom: 14px;
}

.page-about__mission-quote {
  margin: 24px 0;
  padding: 18px 22px;
  border-left: 6px solid var(--ai-red);
  background: var(--ai-cream);
  font-family: var(--ai-serif);
  font-size: 1.2rem;
  color: var(--ai-green);
  box-shadow: var(--ai-shadow-soft);
}

.page-about__mission-quote p {
  margin: 0;
}

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

.page-about__mission-img {
  width: 100%;
  height: auto;
  display: block;
  border: 3px solid var(--ai-green-2);
  box-shadow: var(--ai-shadow-soft);
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.page-about__figure-caption {
  margin-top: 10px;
  font-family: var(--ai-mono);
  font-size: 0.78rem;
  color: var(--ai-green-2);
  letter-spacing: 0.05em;
}

.page-about__timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  display: grid;
  gap: 22px;
}

.page-about__timeline::before {
  content: "";
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 10px;
  width: 2px;
  background: var(--about-line);
}

.page-about__timeline-item {
  position: relative;
  padding-left: 34px;
}

.page-about__timeline-dot {
  position: absolute;
  left: 0;
  top: 6px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--ai-gold);
  border: 4px solid var(--ai-green-2);
  box-shadow: 0 0 0 4px rgba(242, 176, 30, 0.22);
}

.page-about__timeline-card {
  background: var(--ai-cream);
  border: 2px solid var(--ai-green-2);
  box-shadow: var(--ai-shadow-soft);
  padding: 20px 22px;
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.page-about__timeline-card:hover,
.page-about__timeline-item:focus-within .page-about__timeline-card {
  transform: translateX(6px);
  box-shadow: var(--ai-shadow-hard);
}

.page-about__timeline-year {
  display: inline-block;
  font-family: var(--ai-mono);
  font-size: 0.85rem;
  color: var(--ai-red);
  font-weight: 700;
  background: var(--ai-paper);
  border: 1px solid var(--ai-gold);
  padding: 2px 8px;
  margin-bottom: 8px;
}

.page-about__timeline-title {
  font-family: var(--ai-serif);
  font-size: 1.25rem;
  color: var(--ai-green);
  margin: 0 0 8px;
}

.page-about__timeline-card .body-text {
  margin-bottom: 0;
}

.page-about__stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 34px;
}

.page-about__stat {
  position: relative;
  background: var(--ai-green);
  color: var(--ai-cream);
  border: 2px solid var(--ai-green-2);
  box-shadow: var(--ai-shadow-hard);
  padding: 22px 18px;
  overflow: hidden;
}

.page-about__stat::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 18%;
  height: 4px;
  background: var(--ai-gold);
}

.page-about__stat-value {
  display: inline-block;
  font-family: var(--ai-serif);
  font-size: clamp(2rem, 6vw, 3.4rem);
  line-height: 1;
  color: var(--ai-gold);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.page-about__stat-suffix {
  font-family: var(--ai-mono);
  color: var(--ai-gold);
  font-size: 1rem;
  margin-left: 2px;
}

.page-about__stat-label {
  display: block;
  margin-top: 10px;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  opacity: 0.82;
}

.page-about__stat:hover .page-about__stat-value {
  animation: pageAboutJitter 0.18s linear infinite;
}

@keyframes pageAboutJitter {
  0% { transform: translate(0, 0); }
  25% { transform: translate(-1px, 1px); }
  50% { transform: translate(1px, -1px); }
  75% { transform: translate(-1px, -1px); }
  100% { transform: translate(0, 0); }
}

.page-about__data-grid {
  display: grid;
  gap: 28px;
}

.page-about__data-copy {
  min-width: 0;
}

.page-about__subtitle {
  font-family: var(--ai-serif);
  font-size: 1.2rem;
  color: var(--ai-green);
  margin: 0 0 12px;
}

.page-about__data-list {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}

.page-about__data-list li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.page-about__data-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 8px;
  height: 8px;
  background: var(--ai-teal);
  border-radius: 50%;
}

.page-about__data-img {
  width: 100%;
  height: auto;
  display: block;
  border: 3px solid var(--ai-green-2);
  box-shadow: var(--ai-shadow-soft);
  object-fit: cover;
  aspect-ratio: 1 / 1;
}

.page-about__tech-copy {
  margin-bottom: 24px;
}

.page-about__version-grid {
  display: grid;
  gap: 18px;
  margin-bottom: 30px;
}

.page-about__version-card {
  background: var(--ai-green);
  color: var(--ai-cream);
  border: 2px solid var(--ai-green-2);
  box-shadow: var(--ai-shadow-soft);
  padding: 22px 20px;
}

.page-about__version-code {
  display: inline-block;
  font-family: var(--ai-mono);
  font-size: 0.85rem;
  color: var(--ai-green);
  background: var(--ai-gold);
  padding: 3px 10px;
  margin-bottom: 12px;
  font-weight: 700;
}

.page-about__version-card .page-about__subtitle {
  color: var(--ai-cream);
}

.page-about__version-card .body-text {
  color: rgba(245, 240, 230, 0.85);
  margin-bottom: 0;
}

.page-about__tech-bottom {
  display: grid;
  gap: 22px;
  align-items: center;
}

.page-about__tech-extra {
  min-width: 0;
}

.page-about__tech-img {
  width: 100%;
  height: auto;
  display: block;
  border: 3px solid var(--ai-green-2);
  box-shadow: var(--ai-shadow-soft);
  object-fit: cover;
  aspect-ratio: 5 / 4;
}

.page-about__team-lead {
  max-width: 760px;
  font-size: 1.05rem;
}

.page-about__team-grid {
  display: grid;
  gap: 18px;
  margin-bottom: 26px;
}

.page-about__team-card {
  background: var(--ai-cream);
  border: 2px solid var(--ai-green);
  box-shadow: var(--ai-shadow-soft);
  padding: 22px 20px;
  position: relative;
}

.page-about__team-code {
  display: inline-block;
  font-family: var(--ai-mono);
  font-size: 0.78rem;
  color: var(--ai-green-2);
  background: var(--ai-paper);
  border: 1px solid var(--ai-gold-light);
  padding: 2px 8px;
  margin-bottom: 12px;
}

.page-about__team-card .body-text {
  margin-bottom: 0;
}

.page-about__team-cta {
  border-top: 2px dashed var(--about-line);
  padding-top: 18px;
}

.page-about__next {
  margin-top: 44px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-about__next-link {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  background: var(--ai-green);
  color: var(--ai-cream);
  border: 2px solid var(--ai-green-2);
  box-shadow: var(--ai-shadow-soft);
  padding: 16px 20px;
  text-decoration: none;
  font-family: var(--ai-sans);
  font-weight: 600;
  transition: transform 0.2s ease;
}

.page-about__next-link:hover {
  transform: translateY(-3px);
}

.page-about__next-label {
  font-family: var(--ai-mono);
  font-size: 0.75rem;
  opacity: 0.7;
}

@media (min-width: 700px) {
  .page-about__hero-grid {
    grid-template-columns: 1.3fr 0.7fr;
    align-items: end;
  }

  .page-about__mission-grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
  }

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

  .page-about__data-grid {
    grid-template-columns: 1fr 0.9fr;
    align-items: center;
  }

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

  .page-about__tech-bottom {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: center;
  }

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

@media (min-width: 900px) {
  .page-about__layout {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 64px;
    align-items: start;
  }

  .page-about__index {
    display: block;
    position: sticky;
    top: 140px;
    border-left: 3px solid var(--ai-gold);
    padding-left: 18px;
    margin-top: 56px;
  }

  .page-about__index-label {
    font-family: var(--ai-mono);
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ai-green-2);
    margin-bottom: 14px;
  }

  .page-about__index-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 8px;
  }

  .page-about__index-item {
    margin: 0;
  }

  .page-about__index-item a {
    display: flex;
    align-items: baseline;
    gap: 10px;
    text-decoration: none;
    color: var(--ai-green);
    font-size: 0.92rem;
    padding: 4px 0;
    border-bottom: 1px solid transparent;
  }

  .page-about__index-item a:hover {
    border-bottom-color: var(--ai-gold);
    color: var(--ai-ink);
  }

  .page-about__index-code {
    font-family: var(--ai-mono);
    color: var(--ai-gold);
    font-weight: 700;
    text-shadow: 1px 1px 0 var(--ai-green);
  }

  .page-about__section-head {
    position: sticky;
    top: 132px;
    background: var(--ai-paper);
    box-shadow: 0 2px 0 var(--ai-gold-light);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about__stat:hover .page-about__stat-value,
  .page-about__timeline-card,
  .page-about__next-link {
    animation: none !important;
    transition: none !important;
  }
}