.page-about {
  --about-muted: rgba(245, 241, 232, 0.68);
  --about-card: var(--paper);
  --about-ink: var(--ink);
  --about-grid-line: rgba(0, 255, 163, 0.05);
  background:
    radial-gradient(circle at 82% 8%, rgba(0, 255, 163, 0.1), transparent 34%),
    linear-gradient(var(--about-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-grid-line) 1px, transparent 1px),
    var(--space-blue);
  background-size: auto, 34px 34px, 34px 34px, auto;
  color: var(--paper);
  overflow-x: hidden;
}

.page-about a {
  color: var(--electric-blue);
  text-decoration-thickness: 2px;
  text-underline-offset: 2px;
}

.page-about a:hover {
  color: var(--neon-green);
}

.about-container {
  max-width: 1160px;
  margin-inline: auto;
  padding-inline: 20px;
}

.about-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--about-muted);
  margin-bottom: 32px;
}

.about-breadcrumb a {
  color: var(--electric-blue);
  text-decoration: none;
}

.about-breadcrumb a:hover {
  color: var(--neon-green);
}

.about-breadcrumb__sep {
  color: var(--neon-green);
}

.about-hero {
  padding: 48px 0 40px;
  position: relative;
}

.about-hero::after {
  content: "";
  display: block;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-green), transparent 70%);
  margin-top: 48px;
}

.about-hero__layout {
  display: grid;
  gap: 32px;
  align-items: start;
}

.about-hero__kicker {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.16em;
  color: var(--neon-green);
  text-transform: uppercase;
  margin: 0 0 16px;
}

.about-hero__title {
  font-family: var(--font-mono);
  font-size: clamp(1.9rem, 5.4vw, 3.75rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
  color: var(--paper);
  max-width: 16ch;
}

.about-hero__lede {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--about-muted);
  max-width: 60ch;
  margin: 0;
}

.about-hero__sigil {
  border: 2px solid rgba(245, 241, 232, 0.22);
  background: rgba(30, 36, 46, 0.6);
  box-shadow: var(--shadow-panel);
  padding: 24px;
  transform: rotate(1.2deg);
  color: var(--neon-green);
}

.about-hero__sigil svg {
  display: block;
  width: 100%;
  height: auto;
}

.about-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  align-items: center;
  margin-top: 36px;
  padding: 20px 0 0;
}

.about-toc__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--about-muted);
}

.about-toc a {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--paper);
  text-decoration: none;
  border: 1px solid rgba(245, 241, 232, 0.28);
  padding: 6px 12px;
  transition: border-color var(--tr), color var(--tr), background var(--tr);
}

.about-toc a:hover {
  color: var(--space-blue);
  background: var(--neon-green);
  border-color: var(--neon-green);
}

.about-origin,
.about-timeline,
.about-data,
.about-ecosystem {
  padding: 64px 0;
}

.about-section-head {
  margin-bottom: 36px;
}

.about-section-no {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.18em;
  color: var(--neon-green);
  margin: 0 0 10px;
}

.about-section-title {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3.4vw, 2.5rem);
  line-height: 1.15;
  margin: 0;
  color: var(--paper);
}

.about-section-desc {
  margin-top: 12px;
  color: var(--about-muted);
  line-height: 1.7;
  max-width: 68ch;
}

.about-origin__grid {
  display: grid;
  gap: 32px;
  grid-template-columns: minmax(0, 1fr);
}

.about-origin__content p {
  line-height: 1.7;
  color: var(--about-muted);
  margin: 0 0 16px;
}

.about-origin__lead {
  font-size: 1.125rem;
  color: var(--paper);
}

.about-origin__quote {
  margin: 28px 0;
  padding: 20px 24px;
  border-left: 4px solid var(--neon-green);
  background: rgba(30, 36, 46, 0.8);
  color: var(--paper);
  font-family: var(--font-mono);
}

.about-origin__quote p {
  margin: 0;
}

.about-origin__visual {
  border: 2px solid rgba(245, 241, 232, 0.28);
  background: rgba(30, 36, 46, 0.65);
  box-shadow: var(--shadow-panel);
  transform: rotate(-1deg);
}

.about-origin__visual svg {
  display: block;
  width: 100%;
  height: auto;
}

.about-timeline {
  background: rgba(30, 36, 46, 0.72);
  border-block: 1px solid rgba(245, 241, 232, 0.16);
}

.about-timeline__list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  display: grid;
  gap: 28px;
}

.about-timeline__list::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 18px;
  width: 2px;
  background: linear-gradient(var(--neon-green), var(--electric-blue));
  opacity: 0.7;
}

.about-timeline__entry {
  position: relative;
  padding-left: 52px;
}

.about-timeline__entry::before {
  content: "";
  position: absolute;
  top: 22px;
  left: 10px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--space-blue);
  border: 3px solid var(--neon-green);
  box-shadow: 0 0 0 4px rgba(0, 255, 163, 0.18);
}

.about-timeline__trigger {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  width: 100%;
  background: var(--about-card);
  border: 2px solid var(--about-ink);
  border-radius: 0;
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.35);
  color: var(--about-ink);
  font: inherit;
  padding: 18px 20px;
  text-align: left;
  cursor: pointer;
  transition: transform var(--tr), box-shadow var(--tr);
}

.about-timeline__trigger:hover,
.about-timeline__trigger:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: 10px 10px 0 rgba(0, 0, 0, 0.35);
  outline: 2px solid var(--neon-green);
  outline-offset: 2px;
}

.about-timeline__year {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--space-blue);
  background: var(--neon-green);
  padding: 4px 8px;
}

.about-timeline__phase {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.about-timeline__tick {
  margin-left: auto;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--space-blue);
}

.about-timeline__body {
  margin-top: 12px;
  background: rgba(245, 241, 232, 0.08);
  border: 1px dashed rgba(245, 241, 232, 0.28);
  padding: 18px 20px;
}

.about-timeline__body-title {
  font-family: var(--font-mono);
  font-size: 1.0625rem;
  margin: 0 0 8px;
  color: var(--neon-green);
}

.about-timeline__body p {
  margin: 0;
  line-height: 1.7;
  color: var(--about-muted);
}

.about-data__stats {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  list-style: none;
  margin: 0 0 40px;
  padding: 0;
}

.about-data__stat {
  background: rgba(30, 36, 46, 0.82);
  border: 1px solid rgba(245, 241, 232, 0.2);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.3);
  padding: 24px 20px;
  position: relative;
  overflow: hidden;
}

.about-data__stat::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--neon-green);
}

.about-data__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3vw, 2.125rem);
  font-weight: 700;
  color: var(--neon-green);
  margin-bottom: 6px;
}

.about-data__label {
  font-size: 0.9375rem;
  color: var(--about-muted);
}

.about-data__figure {
  margin: 0;
}

.about-data__img {
  width: 100%;
  height: auto;
  display: block;
  border: 2px solid rgba(245, 241, 232, 0.26);
  box-shadow: var(--shadow-panel);
}

.about-data__caption {
  margin-top: 12px;
  font-size: 0.875rem;
  color: var(--about-muted);
  line-height: 1.6;
}

.about-ecosystem {
  background: rgba(30, 36, 46, 0.55);
  border-block: 1px solid rgba(245, 241, 232, 0.14);
}

.about-ecosystem__grid {
  display: grid;
  gap: 32px;
}

.about-ecosystem__figure {
  margin: 0;
  position: relative;
}

.about-ecosystem__img {
  width: 100%;
  height: auto;
  display: block;
  border: 2px solid rgba(245, 241, 232, 0.26);
  box-shadow: var(--shadow-card);
}

.about-ecosystem__caption {
  margin-top: 10px;
  font-size: 0.875rem;
  color: var(--about-muted);
}

.about-ecosystem__content {
  border: 2px solid rgba(245, 241, 232, 0.18);
  background: rgba(11, 27, 61, 0.7);
  padding: 28px 24px;
  box-shadow: var(--shadow-panel);
}

.about-ecosystem__subtitle {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  margin: 0 0 16px;
  color: var(--neon-green);
}

.about-ecosystem__list {
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.about-ecosystem__list li {
  padding-left: 22px;
  position: relative;
  line-height: 1.7;
  color: var(--about-muted);
}

.about-ecosystem__list li::before {
  content: "◆";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--neon-green);
  font-size: 0.75rem;
}

.about-ecosystem__list strong {
  color: var(--paper);
  font-weight: 600;
}

.about-ecosystem__honor {
  background: var(--violet);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  padding: 2px 6px;
  margin-inline: 2px;
  white-space: nowrap;
}

.about-ecosystem__note {
  color: var(--about-muted);
  line-height: 1.7;
  margin: 0;
}

.about-extra {
  padding: 64px 0 80px;
}

.about-extra__panel {
  display: grid;
  gap: 24px;
  background: var(--paper);
  color: var(--ink);
  border: 2px solid var(--ink);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.4);
  padding: 32px 28px;
}

.about-extra__kicker {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--electric-blue);
  margin: 0 0 8px;
}

.about-extra__title {
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 2.6vw, 1.9rem);
  margin: 0;
  line-height: 1.2;
}

.about-extra__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
}

.about-extra__links a {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--space-blue);
  text-decoration: none;
  border-bottom: 2px solid var(--neon-green);
  padding: 4px 0;
}

.about-extra__links a:hover {
  background: var(--neon-green);
}

.about-extra__contact {
  margin-top: 32px;
  display: grid;
  gap: 6px;
  max-width: 520px;
}

.page-about .about-extra__contact .contact__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--neon-green);
  margin: 10px 0 0;
}

.about-extra__contact p {
  margin: 0;
  color: var(--about-muted);
  line-height: 1.6;
}

@media (min-width: 880px) {
  .about-hero {
    padding: 72px 0 56px;
  }

  .about-hero__layout {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 56px;
    align-items: center;
  }

  .about-origin,
  .about-timeline,
  .about-data,
  .about-ecosystem {
    padding: 88px 0;
  }

  .about-section-head {
    margin-bottom: 48px;
  }

  .about-origin__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
    gap: 56px;
  }

  .about-timeline__list {
    gap: 40px;
  }

  .about-timeline__list::before {
    left: 50%;
  }

  .about-timeline__entry {
    width: 50%;
    padding-left: 0;
    padding-right: 48px;
  }

  .about-timeline__entry--right {
    margin-left: 50%;
    padding-right: 0;
    padding-left: 48px;
  }

  .about-timeline__entry::before {
    left: auto;
    right: -10px;
  }

  .about-timeline__entry--right::before {
    right: auto;
    left: -10px;
  }

  .about-data__stats {
    gap: 24px;
  }

  .about-ecosystem__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.2fr) minmax(0, 1fr);
    align-items: start;
    gap: 32px;
  }

  .about-extra__panel {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    align-items: center;
    padding: 44px 48px;
  }
}