.page-about {
  --about-bg: #0A0E1A;
  --about-card: #1C2230;
  --about-border: #2D3748;
  --about-green: #39FF14;
  --about-blue: #00E5FF;
  --about-white: #FFFFFF;
  --about-muted: #A0AEC0;
  --about-grad: linear-gradient(135deg, #39FF14 0%, #00E5FF 100%);
  box-sizing: border-box;
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  background: var(--about-bg);
  background-image:
    repeating-linear-gradient(135deg, rgba(0, 229, 255, 0.04) 0, rgba(0, 229, 255, 0.04) 1px, transparent 1px, transparent 12px),
    repeating-linear-gradient(45deg, rgba(57, 255, 20, 0.03) 0, rgba(57, 255, 20, 0.03) 1px, transparent 1px, transparent 24px);
  color: var(--about-white);
  font-family: var(--font-body), sans-serif;
  padding: clamp(24px, 5vw, 64px) clamp(16px, 4vw, 48px) clamp(48px, 8vw, 96px);
}

.page-about *,
.page-about *::before,
.page-about *::after {
  box-sizing: inherit;
}

.about-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 0.875rem;
  color: var(--about-muted);
  margin-bottom: 24px;
}

.about-breadcrumb a {
  color: var(--about-blue);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.3s ease, border-color 0.3s ease;
}

.about-breadcrumb a:hover {
  border-color: var(--about-blue);
}

.about-hero {
  position: relative;
  background:
    linear-gradient(135deg, rgba(57, 255, 20, 0.08) 0%, transparent 45%),
    linear-gradient(315deg, rgba(0, 229, 255, 0.06) 0%, transparent 42%),
    var(--about-card);
  padding: clamp(32px, 5vw, 64px) clamp(20px, 4vw, 48px);
  margin-bottom: clamp(24px, 5vw, 56px);
  border-top: 4px solid var(--about-green);
  border-left: 4px solid var(--about-blue);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 20px));
  overflow: hidden;
}

.about-hero::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -60px;
  width: 220px;
  height: 220px;
  border: 2px solid rgba(0, 229, 255, 0.18);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(57, 255, 20, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.about-hero-kicker {
  margin: 0 0 12px;
  font-family: var(--font-data), monospace;
  color: var(--about-green);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.875rem;
}

.about-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-heading), sans-serif;
  font-size: clamp(2rem, 6vw, 4.5rem);
  line-height: 1.04;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  color: var(--about-white);
}

.about-hero h1 em {
  font-style: normal;
  color: var(--about-green);
}

.about-hero-desc {
  margin: 0;
  max-width: 68ch;
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  line-height: 1.7;
  color: var(--about-muted);
}

.about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 28px;
}

.about-hero-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--about-blue);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 10px 4px;
  border-bottom: 1px solid transparent;
  transition: color 0.3s ease, border-color 0.3s ease;
}

.about-hero-link:hover {
  color: var(--about-white);
  border-color: var(--about-green);
}

.about-canvas {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.about-toc {
  position: relative;
  background: rgba(28, 34, 48, 0.7);
  border: 1px solid rgba(45, 55, 72, 0.6);
  padding: 20px;
}

.about-toc-title {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-data), monospace;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--about-muted);
}

.about-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
}

.about-toc-list a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  color: var(--about-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.3s ease, border-color 0.3s ease;
}

.about-toc-list a span {
  font-family: var(--font-data), monospace;
  color: var(--about-blue);
  font-size: 0.75rem;
}

.about-toc-list a:hover {
  color: var(--about-white);
  border-color: var(--about-green);
}

.about-toc-contact {
  display: inline-block;
  margin-top: 16px;
  color: var(--about-green);
  text-decoration: none;
  font-family: var(--font-data), monospace;
  font-size: 0.8125rem;
  border-bottom: 1px solid rgba(57, 255, 20, 0.5);
}

.about-document {
  min-width: 0;
  display: grid;
  gap: 24px;
}

.about-section {
  padding: clamp(28px, 5vw, 56px) 0;
  border-top: 1px solid rgba(45, 55, 72, 0.7);
  position: relative;
}

.about-section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: linear-gradient(135deg, rgba(57, 255, 20, 0.15), rgba(0, 229, 255, 0.12));
  border-left: 3px solid var(--about-green);
  clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
  font-family: var(--font-data), monospace;
  font-size: 0.8125rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--about-green);
  margin-bottom: 20px;
}

.about-section-num {
  color: var(--about-blue);
  font-size: 1rem;
  line-height: 1;
}

.about-h2 {
  margin: 0 0 12px;
  font-family: var(--font-heading), sans-serif;
  font-size: clamp(1.75rem, 4vw, 3rem);
  line-height: 1.1;
  text-transform: uppercase;
  letter-spacing: 0.01em;
}

.about-lede {
  font-size: clamp(1rem, 2vw, 1.125rem);
  line-height: 1.65;
  color: var(--about-blue);
  font-weight: 500;
  margin-bottom: 16px;
}

.about-section-body > p {
  color: var(--about-muted);
  line-height: 1.7;
  margin: 0 0 16px;
  font-size: 0.95rem;
}

.about-brand-figure {
  margin: 28px 0 20px;
  background:
    linear-gradient(135deg, rgba(57, 255, 20, 0.08), rgba(0, 229, 255, 0.08)),
    var(--about-card);
  border: 1px solid var(--about-border);
  padding: 20px;
  display: grid;
  place-items: center;
}

.about-brand-figure img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 4px;
}

.about-quote {
  margin: 28px 0 0;
  padding: 20px 24px;
  border-left: 3px solid var(--about-blue);
  background: rgba(0, 229, 255, 0.06);
  color: var(--about-white);
  font-family: var(--font-heading), sans-serif;
  font-size: 1.125rem;
  line-height: 1.4;
}

.about-stats-grid {
  margin: 28px 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

@media (min-width: 640px) {
  .about-stats-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
}

.about-stat-card {
  position: relative;
  background: var(--about-card);
  padding: 20px 16px;
  border: 1px solid rgba(45, 55, 72, 0.7);
  border-top: 2px solid var(--about-green);
  overflow: hidden;
}

.about-stat-card::after {
  content: "";
  position: absolute;
  right: -20px;
  bottom: -30px;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.12) 0%, transparent 68%);
  pointer-events: none;
}

.about-stat-value {
  display: block;
  font-family: var(--font-data), monospace;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: bold;
  line-height: 1;
  color: var(--about-white);
  margin-bottom: 10px;
  white-space: nowrap;
}

.about-stat-suffix {
  font-size: 0.6em;
  color: var(--about-green);
  margin-left: 2px;
}

.about-stat-label {
  display: block;
  font-weight: 600;
  color: var(--about-blue);
  font-size: 0.875rem;
  margin-bottom: 6px;
  line-height: 1.3;
}

.about-stat-detail {
  display: block;
  color: var(--about-muted);
  font-size: 0.8125rem;
  line-height: 1.45;
}

.about-capability-callout {
  margin-top: 24px;
  padding: 14px 18px;
  background: rgba(0, 229, 255, 0.06);
  border-left: 2px solid var(--about-blue);
  color: var(--about-muted);
  font-size: 0.9375rem;
}

.about-capability-callout a,
.about-credential-note a {
  color: var(--about-green);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 255, 20, 0.4);
}

.about-capability-figure {
  margin-top: 28px;
}

.about-capability-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--about-border);
  object-fit: cover;
  background: var(--about-card);
}

.about-timeline {
  list-style: none;
  margin: 28px 0 20px;
  padding: 0;
  display: grid;
  gap: 16px;
  position: relative;
}

.about-timeline::before {
  content: "";
  position: absolute;
  left: 22px;
  top: 20px;
  bottom: 20px;
  width: 2px;
  background: linear-gradient(to bottom, var(--about-green) 0%, var(--about-blue) 100%);
}

.about-timeline-item {
  position: relative;
  margin: 0;
  padding: 24px 22px 26px 56px;
  background: var(--about-card);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
}

.about-timeline-item::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 28px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--about-green);
  box-shadow: 0 0 10px rgba(57, 255, 20, 0.6);
  border: 2px solid var(--about-bg);
}

.about-phase-marker {
  display: inline-block;
  padding: 4px 10px;
  margin-bottom: 10px;
  font-family: var(--font-data), monospace;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--about-green);
  background: rgba(57, 255, 20, 0.08);
  border: 1px solid rgba(57, 255, 20, 0.3);
}

.about-timeline-item h3 {
  margin: 0 0 8px;
  font-family: var(--font-heading), sans-serif;
  font-size: 1.25rem;
  text-transform: uppercase;
  line-height: 1.2;
  color: var(--about-white);
}

.about-timeline-item p {
  margin: 0;
  color: var(--about-muted);
  font-size: 0.9rem;
  line-height: 1.65;
}

.about-timeline-figure {
  margin-top: 28px;
}

.about-timeline-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--about-border);
  object-fit: cover;
}

.about-timeline-note {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px dashed rgba(45, 55, 72, 0.8);
  color: var(--about-muted);
  font-size: 0.875rem;
  font-family: var(--font-data), monospace;
}

.about-credential-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 28px;
}

@media (min-width: 640px) {
  .about-credential-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
}

.about-credential-card {
  position: relative;
  background: var(--about-card);
  border: 1px solid rgba(45, 55, 72, 0.7);
  padding: 24px 20px 20px;
  overflow: hidden;
}

.about-credential-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  height: 3px;
  width: 48px;
  background: var(--about-grad);
}

.about-credential-key {
  display: block;
  font-family: var(--font-data), monospace;
  color: var(--about-blue);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.about-credential-value {
  display: block;
  font-family: var(--font-data), monospace;
  font-size: 1.375rem;
  font-weight: bold;
  color: var(--about-white);
  margin-bottom: 8px;
}

.about-credential-desc {
  display: block;
  color: var(--about-muted);
  font-size: 0.875rem;
  line-height: 1.55;
}

.about-credential-note {
  margin-top: 28px;
  padding: 16px 20px;
  background: rgba(57, 255, 20, 0.06);
  border-left: 2px solid var(--about-green);
  color: var(--about-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
}

@media (prefers-reduced-motion: reduce) {
  .about-hero::after,
  .about-stat-card::after {
    display: none;
  }
}

@media (min-width: 900px) {
  .about-canvas {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: clamp(32px, 5vw, 80px);
  }

  .about-toc {
    position: sticky;
    top: 100px;
    align-self: start;
    background: transparent;
    border: 0;
    padding: 0;
  }

  .about-toc-title {
    display: block;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--about-border);
  }

  .about-toc-list {
    flex-direction: column;
    gap: 0;
  }

  .about-toc-list a {
    display: flex;
    padding: 8px 0;
    font-size: 0.9375rem;
    border-bottom: 1px solid rgba(45, 55, 72, 0.6);
  }

  .about-toc-contact {
    margin-top: 24px;
    padding-left: 28px;
  }

  .about-section {
    display: grid;
    grid-template-columns: 150px minmax(0, 1fr);
    gap: clamp(24px, 4vw, 48px);
  }

  .about-section-label {
    margin-top: 10px;
    margin-bottom: 0;
    align-self: start;
  }

  .about-section-body {
    min-width: 0;
  }
}