.page-about {
  background: var(--color-gray-deep);
  color: var(--color-white);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-about .container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.page-about .about-hero {
  position: relative;
  padding: 56px 0 48px;
  background:
    linear-gradient(90deg, rgba(228, 0, 43, 0.18) 0%, transparent 45%),
    var(--color-gray-deep);
  border-bottom: 2px solid var(--color-race-red);
  overflow: hidden;
}

.page-about .about-hero-inner {
  position: relative;
  z-index: 2;
}

.page-about .hero-grid-bg {
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: 0.4;
  pointer-events: none;
}

.page-about .hero-grid-bg svg {
  width: 100%;
  height: 100%;
  display: block;
}

.page-about .kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-neon);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
  text-transform: uppercase;
}

.page-about .kicker::before {
  content: "";
  width: 32px;
  height: 4px;
  background: var(--color-race-red);
  display: inline-block;
}

.page-about .about-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.2rem, 9vw, 4.8rem);
  line-height: 0.95;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  margin: 0 0 24px;
  max-width: 820px;
}

.page-about .about-title .accent {
  color: var(--color-race-red);
}

.page-about .about-lead {
  font-size: 1rem;
  line-height: 1.8;
  color: #d0d0d0;
  max-width: 640px;
  margin: 0;
}

.page-about .chapter-layout {
  padding-top: 40px;
  padding-bottom: 60px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-about .chapter-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-bottom: 16px;
  border-bottom: 1px solid #333;
}

.page-about .chapter-nav-title {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--color-neon);
  text-transform: uppercase;
  margin-right: 8px;
}

.page-about .chapter-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border: 1px solid #333;
  color: #b0b0b0;
  text-decoration: none;
  font-size: 0.85rem;
  transition: border-color 0.3s ease, color 0.3s ease, background 0.3s ease;
}

.page-about .chapter-nav-link:hover {
  color: var(--color-white);
  border-color: var(--color-race-red);
  background: rgba(228, 0, 43, 0.1);
}

.page-about .nav-num {
  font-family: var(--font-mono);
  color: var(--color-race-red);
  font-size: 0.8rem;
}

.page-about .chapter-content {
  display: flex;
  flex-direction: column;
  gap: 64px;
}

.page-about .about-chapter {
  scroll-margin-top: calc(var(--header-height) + 20px);
}

.page-about .chapter-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
  border-bottom: 1px solid #333;
  padding-bottom: 16px;
}

.page-about .chapter-num {
  font-family: var(--font-display);
  font-size: 4rem;
  line-height: 0.9;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 2px var(--color-race-red);
  flex-shrink: 0;
}

.page-about .chapter-heading h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  line-height: 1.05;
  text-transform: uppercase;
  margin: 0 0 6px;
  color: var(--color-white);
}

.page-about .chapter-heading p {
  font-family: var(--font-mono);
  color: var(--color-medium-gray);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  margin: 0;
}

.page-about .about-chapter:target .chapter-heading h2 {
  color: var(--color-neon);
}

.page-about .chapter-body {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-about .chapter-body p {
  color: #c0c0c0;
  line-height: 1.8;
  font-size: 1rem;
  margin: 0;
}

.page-about .chapter-body img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid #333;
  background: #0d0d0d;
}

.page-about .timeline {
  position: relative;
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.page-about .timeline-item {
  position: relative;
  padding-left: 28px;
  border-left: 2px solid var(--color-race-red);
}

.page-about .timeline-item::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 6px;
  width: 14px;
  height: 14px;
  background: var(--color-gray-deep);
  border: 2px solid var(--color-neon);
}

.page-about .timeline-year {
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--color-neon);
  line-height: 1;
  margin-bottom: 4px;
}

.page-about .timeline-card {
  background: #222;
  padding: 20px 24px;
  border: 1px solid #2a2a2a;
  position: relative;
}

.page-about .timeline-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 12px;
  height: 100%;
  background: linear-gradient(to bottom, var(--color-race-red), var(--color-deep-red));
  clip-path: polygon(100% 0, 100% 100%, 0 100%, 0 40%, 50% 20%, 0 0);
}

.page-about .timeline-card h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--color-white);
  margin: 0 0 8px;
}

.page-about .timeline-card p {
  color: #b0b0b0;
  font-size: 0.9rem;
  line-height: 1.6;
  margin: 0;
}

.page-about .capability-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 0;
}

.page-about .capability-item {
  background: #1a1a1a;
  border: 1px solid #333;
  padding: 20px 24px;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.page-about .capability-item:hover {
  border-color: var(--color-race-red);
  transform: translateY(-2px);
}

.page-about .capability-item dt {
  font-family: var(--font-mono);
  color: var(--color-medium-gray);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.page-about .capability-item dd {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--color-white);
  margin: 0;
  line-height: 1.1;
}

.page-about .compliance-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .compliance-card {
  background: #0d0d0d;
  border: 1px solid #333;
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.page-about .compliance-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 100%;
  background: var(--color-race-red);
}

.page-about .compliance-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--color-white);
  margin: 0 0 10px;
}

.page-about .compliance-card p {
  color: #b0b0b0;
  font-size: 0.9rem;
  line-height: 1.6;
  margin: 0;
}

.page-about .compliance-card .icp-number {
  font-family: var(--font-mono);
  color: var(--color-neon);
}

.page-about .about-cta {
  background: linear-gradient(135deg, var(--color-race-red) 0%, var(--color-deep-red) 100%);
  padding: 40px 28px;
  text-align: center;
  border: 1px solid var(--color-deep-red);
}

.page-about .about-cta h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  color: var(--color-white);
  margin: 0 0 12px;
}

.page-about .about-cta p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1rem;
  line-height: 1.7;
  max-width: 480px;
  margin: 0 auto 24px;
}

.page-about .about-cta .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 24px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid var(--color-white);
  min-height: 48px;
  transition: background 0.3s ease, transform 0.2s ease;
  box-sizing: border-box;
}

.page-about .about-cta .btn-primary {
  background: var(--color-white);
  border-color: var(--color-white);
  color: var(--color-race-red);
  margin-right: 8px;
}

.page-about .about-cta .btn-primary:hover {
  background: var(--color-light-gray);
}

.page-about .about-cta .btn-ghost {
  background: transparent;
  color: var(--color-white);
}

.page-about .about-cta .btn-ghost:hover {
  background: rgba(255, 255, 255, 0.15);
}

@media (min-width: 768px) {
  .page-about .container {
    padding: 0 40px;
  }

  .page-about .chapter-layout {
    grid-template-columns: 240px 1fr;
    gap: 48px;
  }

  .page-about .chapter-nav {
    flex-direction: column;
    align-items: flex-start;
    align-self: start;
    position: sticky;
    top: calc(var(--header-height) + 24px);
    border-bottom: 0;
    padding-bottom: 0;
    border-left: 2px solid #333;
    padding-left: 16px;
  }

  .page-about .chapter-nav-link {
    border: 0;
    padding: 8px 0;
    background: transparent;
    width: 100%;
  }

  .page-about .capability-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .compliance-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .page-about .about-title {
    font-size: 4.5rem;
  }

  .page-about .chapter-num {
    font-size: 5.5rem;
  }

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