.page-about {
  --about-green: #00FFC2;
  --about-purple: #7B2FFF;
  --about-panel: #12141D;
  --about-border: #2A2E3A;
  --about-dim: #A0AAB8;
  position: relative;
  background: var(--color-bg);
  color: var(--color-text);
  overflow-x: hidden;
}

.page-about .container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.page-about .breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--color-dim);
  font-family: var(--font-body);
  font-size: 0.875rem;
  margin-bottom: 32px;
}

.page-about .breadcrumbs a {
  color: var(--color-text);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.page-about .breadcrumbs__sep {
  color: var(--color-steel);
}

.page-about .section {
  padding: 80px 0;
  position: relative;
}

.page-about .section__header {
  position: relative;
  padding-top: 16px;
  margin-bottom: 48px;
}

.page-about .section__index {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.2em;
  color: var(--color-green);
  border: 1px solid var(--color-steel);
  background: var(--color-panel);
  padding: 4px 10px;
  margin-bottom: 14px;
}

.page-about .section__title {
  font-family: var(--font-headline);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  margin: 0 0 12px;
  line-height: 1.15;
}

.page-about .section__sub {
  color: var(--color-dim);
  font-size: 1rem;
  line-height: 1.7;
  max-width: 40rem;
  margin: 0;
}

.page-about .figure__caption {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--color-dim);
  letter-spacing: 0.04em;
  padding-top: 12px;
  line-height: 1.5;
}

.page-about img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 88px 0 64px;
  border-bottom: 2px solid var(--color-steel);
  background:
    radial-gradient(ellipse 60% 45% at 85% 15%, rgba(123, 47, 255, 0.22), transparent 70%),
    radial-gradient(ellipse 40% 30% at 10% 90%, rgba(0, 255, 194, 0.08), transparent 70%),
    var(--color-bg);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(1px 1px at 18% 24%, rgba(240, 244, 255, 0.5), transparent 100%),
    radial-gradient(1px 1px at 42% 68%, rgba(240, 244, 255, 0.3), transparent 100%),
    radial-gradient(2px 2px at 64% 22%, rgba(123, 47, 255, 0.45), transparent 100%),
    radial-gradient(1px 1px at 78% 80%, rgba(240, 244, 255, 0.35), transparent 100%),
    radial-gradient(2px 2px at 88% 40%, rgba(0, 255, 194, 0.35), transparent 100%),
    radial-gradient(1px 1px at 8% 76%, rgba(240, 244, 255, 0.28), transparent 100%);
}

.page-about .about-hero__grid {
  position: relative;
  display: grid;
  gap: 40px;
}

.page-about .about-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-green);
  margin-bottom: 20px;
}

.page-about .about-hero__eyebrow::before {
  content: "";
  width: 32px;
  height: 2px;
  background: var(--color-green);
}

.page-about .about-hero__title {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: clamp(2.25rem, 6vw, 4.5rem);
  line-height: 1.05;
  letter-spacing: 0.01em;
  margin: 0 0 24px;
  max-width: 12em;
}

.page-about .about-hero__lead {
  color: var(--color-dim);
  font-size: 1rem;
  line-height: 1.8;
  max-width: 42rem;
  margin: 0 0 32px;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-hero__actions .btn {
  padding: 12px 20px;
  font-size: 0.9375rem;
}

.page-about .about-hero__preview {
  border-left: 2px solid var(--color-steel);
  padding: 8px 0 8px 20px;
  align-self: end;
}

.page-about .about-hero__preview-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-dim);
  margin-bottom: 14px;
}

.page-about .about-hero__preview-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-hero__preview-list a {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.9375rem;
  letter-spacing: 0.02em;
  transition: color 0.2s ease;
}

.page-about .about-hero__preview-list a::before {
  content: attr(data-num);
  font-family: var(--font-mono);
  color: var(--color-purple);
  font-size: 0.8125rem;
}

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

.page-about .about-origin {
  padding: 80px 0;
  border-bottom: 1px solid rgba(42, 46, 58, 0.6);
}

.page-about .about-origin__layout {
  display: grid;
  gap: 40px;
  align-items: center;
}

.page-about .about-origin__prose p {
  margin: 0 0 1.25em;
  line-height: 1.85;
  color: var(--color-text);
}

.page-about .about-origin__prose strong {
  color: var(--color-green);
  font-weight: 500;
}

.page-about .about-origin__figure {
  margin: 0;
}

.page-about .about-origin__figure img,
.page-about .about-engine__figure img,
.page-about .about-team__figure img {
  width: 100%;
  height: auto;
  display: block;
  border: 2px solid var(--color-steel);
  box-shadow: var(--shadow-hard);
}

.page-about .about-milestones {
  position: relative;
  padding: 80px 0;
  background:
    radial-gradient(ellipse 50% 35% at 15% 30%, rgba(123, 47, 255, 0.08), transparent 70%),
    radial-gradient(ellipse 45% 30% at 90% 80%, rgba(0, 255, 194, 0.05), transparent 70%),
    var(--color-bg);
}

.page-about .about-milestones__track {
  position: relative;
  padding-left: 34px;
  margin-top: 48px;
}

.page-about .about-milestones__track::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 8px;
  bottom: 8px;
  width: 4px;
  background: var(--color-steel);
}

.page-about .about-milestones__item {
  position: relative;
  margin-bottom: 56px;
}

.page-about .about-milestones__item::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 18px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-green);
  box-shadow: 0 0 0 4px rgba(0, 255, 194, 0.15), 0 0 18px rgba(0, 255, 194, 0.5);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.page-about .about-milestones__item:hover::before,
.page-about .about-milestones__item:focus-within::before {
  box-shadow: 0 0 0 6px rgba(0, 255, 194, 0.22), 0 0 26px rgba(0, 255, 194, 0.7);
  transform: scale(1.1);
}

.page-about .about-milestones__year {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 1.625rem;
  font-weight: 500;
  color: var(--color-green);
  text-decoration: none;
  background: var(--color-panel);
  border: 2px solid var(--color-steel);
  padding: 6px 14px 4px;
  margin-bottom: 18px;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

.page-about .about-milestones__year:hover,
.page-about .about-milestones__year:focus-visible {
  background: var(--color-green);
  color: #0A0C14;
  border-color: var(--color-green);
  outline: none;
}

.page-about .about-milestones__card {
  position: relative;
  border: 2px solid var(--color-steel);
  background: var(--color-panel);
  box-shadow: var(--shadow-hard);
  padding: 26px;
}

.page-about .about-milestones__card::after {
  content: "";
  position: absolute;
  top: -2px;
  right: -2px;
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, transparent 50%, var(--color-purple) 50%);
  opacity: 0.8;
}

.page-about .about-milestones__card h3 {
  font-family: var(--font-headline);
  font-size: 1.375rem;
  letter-spacing: 0.03em;
  margin: 0 0 12px;
}

.page-about .about-milestones__card p {
  margin: 0;
  color: var(--color-dim);
  line-height: 1.75;
  font-size: 0.9375rem;
}

.page-about .about-milestones__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--color-purple);
  border-bottom: 1px solid var(--color-purple);
  padding-bottom: 3px;
  margin-bottom: 12px;
}

.page-about .about-milestones__detail {
  margin-top: 14px;
  border-left: 2px solid var(--color-green);
  padding-left: 14px;
}

.page-about .about-milestones__detail p {
  color: var(--color-text);
  font-size: 0.875rem;
  line-height: 1.7;
}

.page-about .about-milestones__hint {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-dim);
  border-top: 1px solid var(--color-steel);
  padding-top: 18px;
  margin-top: 24px;
}

.page-about .about-engine {
  padding: 80px 0;
  background:
    linear-gradient(135deg, rgba(123, 47, 255, 0.07) 0%, rgba(123, 47, 255, 0) 55%),
    var(--color-bg);
}

.page-about .about-engine__layout {
  display: grid;
  gap: 40px;
  align-items: start;
}

.page-about .about-engine__terminal {
  border: 2px solid var(--color-steel);
  background: var(--color-panel);
  box-shadow: var(--shadow-hard);
}

.page-about .about-engine__terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-bottom: 2px solid var(--color-steel);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--color-dim);
  background: rgba(42, 46, 58, 0.25);
}

.page-about .about-engine__terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-green);
  box-shadow: 0 0 8px rgba(0, 255, 194, 0.6);
  margin-right: 6px;
}

.page-about .about-engine__terminal-bar .tag {
  margin-left: auto;
  font-size: 0.6875rem;
}

.page-about .about-engine__terminal-body {
  margin: 0;
}

.page-about .about-engine__terminal-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 16px 18px;
  border-bottom: 1px dashed var(--color-steel);
  font-family: var(--font-mono);
}

.page-about .about-engine__terminal-row:last-child {
  border-bottom: none;
}

.page-about .about-engine__terminal-row dt {
  color: var(--color-dim);
  font-size: 0.875rem;
  letter-spacing: 0.05em;
}

.page-about .about-engine__terminal-row dd {
  margin: 0;
  color: var(--color-text);
  font-size: 1.125rem;
  font-weight: 500;
  text-align: right;
}

.page-about .about-engine__descr p {
  color: var(--color-dim);
  line-height: 1.8;
  margin: 0 0 1.15em;
}

.page-about .about-engine__figure {
  margin: 40px 0 0;
}

.page-about .about-team {
  padding: 80px 0;
  border-top: 1px solid rgba(42, 46, 58, 0.6);
}

.page-about .about-team__layout {
  display: grid;
  gap: 40px;
  align-items: center;
}

.page-about .about-team__prose p {
  color: var(--color-text);
  line-height: 1.8;
  margin: 0 0 1.15em;
}

.page-about .about-team__prose strong {
  color: var(--color-green);
  font-weight: 500;
}

.page-about .about-team__figure {
  margin: 0;
}

.page-about .about-promise {
  padding: 80px 0;
}

.page-about .about-promise__panel {
  position: relative;
  border: 3px solid var(--color-steel);
  background:
    linear-gradient(135deg, rgba(123, 47, 255, 0.14), rgba(0, 255, 194, 0.07)),
    var(--color-panel);
  box-shadow: 14px 14px 0 0 rgba(42, 46, 58, 0.45);
  padding: 40px 28px;
}

.page-about .about-promise__panel::after {
  content: "";
  position: absolute;
  top: -3px;
  left: 32px;
  width: 88px;
  height: 3px;
  background: var(--gradient);
}

.page-about .about-promise__index {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.18em;
  color: var(--color-green);
  margin-bottom: 16px;
}

.page-about .about-promise__title {
  font-family: var(--font-headline);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  margin: 0 0 16px;
  letter-spacing: 0.02em;
}

.page-about .about-promise__lead {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--color-text);
  margin: 0 0 24px;
}

.page-about .about-promise__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-promise__list li {
  position: relative;
  padding-left: 24px;
  color: var(--color-dim);
  line-height: 1.7;
  font-size: 0.95rem;
}

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

.page-about .about-more {
  padding: 64px 0 100px;
  border-top: 1px solid rgba(42, 46, 58, 0.6);
}

.page-about .about-more__grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}

.page-about .about-more__link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px 22px;
  border: 2px solid var(--color-steel);
  background: var(--color-panel);
  color: var(--color-text);
  font-family: var(--font-headline);
  text-decoration: none;
  font-size: 0.9375rem;
  letter-spacing: 0.04em;
  transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.page-about .about-more__link::after {
  content: "↗";
  font-family: var(--font-mono);
  color: var(--color-purple);
  font-size: 1.125rem;
}

.page-about .about-more__link:hover {
  border-color: var(--color-purple);
  color: var(--color-green);
  transform: translateX(6px);
}

@media (min-width: 720px) {
  .page-about .about-hero {
    padding: 120px 0 80px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: 1fr 320px;
    gap: 80px;
    align-items: end;
  }

  .page-about .about-hero__title {
    font-size: clamp(2.75rem, 6vw, 4.5rem);
  }

  .page-about .about-origin__layout {
    grid-template-columns: 1fr 1fr;
    gap: 56px;
  }

  .page-about .about-team__layout {
    grid-template-columns: 1fr 1fr;
    gap: 56px;
  }

  .page-about .about-engine__layout {
    grid-template-columns: 1fr 1fr;
    gap: 56px;
  }

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

  .page-about .about-promise__panel {
    padding: 56px 64px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-milestones {
    padding: 100px 0;
  }

  .page-about .about-milestones__track {
    padding-left: 0;
  }

  .page-about .about-milestones__track::before {
    left: 178px;
    top: 8px;
    bottom: 8px;
  }

  .page-about .about-milestones__item {
    display: grid;
    grid-template-columns: 150px 1fr;
    column-gap: 64px;
    margin-bottom: 72px;
  }

  .page-about .about-milestones__item::before {
    left: 173px;
    top: 16px;
  }

  .page-about .about-milestones__year {
    grid-column: 1;
    grid-row: 1;
    justify-self: end;
    align-self: start;
    margin: 0;
  }

  .page-about .about-milestones__card {
    grid-column: 2;
    grid-row: 1;
  }

  .page-about .about-engine__layout {
    align-items: center;
  }
}