.page-about {
  --about-grid-line: rgba(42, 53, 90, 0.28);
  --about-green-glow: rgba(0, 255, 157, 0.08);
  --about-coral-glow: rgba(255, 92, 57, 0.12);
  position: relative;
  overflow: hidden;
  background-color: var(--bg-primary);
}

.page-about .about-hero {
  position: relative;
  padding: 48px 0 52px;
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(900px 300px at 90% -10%, var(--about-green-glow), transparent 60%),
    linear-gradient(140deg, transparent 70%, var(--about-coral-glow) 100%);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: 28px;
  right: -40px;
  width: 190px;
  height: 190px;
  background: repeating-linear-gradient(
    90deg,
    transparent 0,
    transparent 18px,
    var(--about-grid-line) 18px,
    var(--about-grid-line) 19px
  );
  clip-path: polygon(0 0, 100% 0, 78% 100%, 0 100%);
  pointer-events: none;
}

.page-about .about-hero .breadcrumb {
  position: relative;
  z-index: 1;
  margin: 0 0 36px;
}

.page-about .about-hero__kicker {
  position: relative;
  z-index: 1;
  margin: 0 0 12px;
  font-family: var(--font-number);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--accent-primary);
  text-transform: uppercase;
}

.page-about .about-hero__title {
  position: relative;
  z-index: 1;
  margin: 0 0 20px;
  font-family: var(--font-headline);
  font-size: clamp(28px, 7vw, 52px);
  line-height: 1.12;
  letter-spacing: 0.01em;
  color: var(--text-primary);
  max-width: 11em;
}

.page-about .about-hero__lead {
  position: relative;
  z-index: 1;
  margin: 0 0 32px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 46em;
}

.page-about .about-hero__facts {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  max-width: 640px;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.page-about .about-hero__fact {
  background: var(--bg-secondary);
  padding: 20px 12px;
}

.page-about .about-num {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-number);
  font-size: clamp(16px, 4.5vw, 24px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--accent-primary);
}

.page-about .about-label {
  display: block;
  font-size: 12px;
  line-height: 1.4;
  color: var(--text-secondary);
}

.page-about .about-section {
  position: relative;
  padding: 56px 0;
  border-bottom: 1px solid var(--border);
}

.page-about .about-section::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(var(--about-grid-line) 1px, transparent 1px);
  background-size: 100% 48px;
  pointer-events: none;
  z-index: 0;
}

.page-about .about-section > * {
  position: relative;
  z-index: 1;
}

.page-about .about-section__head {
  position: relative;
  margin-bottom: 36px;
  padding-left: 18px;
}

.page-about .about-section__head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 8px;
  height: 100%;
  background: var(--accent-primary);
  transform: skewX(-12deg);
  opacity: 0.75;
}

.page-about .about-section__head .section-title {
  margin: 10px 0 8px;
}

.page-about .about-section__head .section-desc {
  margin: 0;
  max-width: 42em;
  font-size: 14px;
}

.page-about .principles-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-about .principle-card {
  position: relative;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 28px 24px 24px;
  overflow: hidden;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.page-about .principle-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent-primary);
  transform: skewX(-12deg) translateX(-2px);
  opacity: 0.85;
}

.page-about .principle-card--edge::before {
  background: var(--accent-secondary);
}

.page-about .principle-card:hover {
  border-color: rgba(0, 255, 157, 0.5);
  transform: translateY(-2px);
}

.page-about .principle-card__index {
  display: inline-block;
  margin-bottom: 24px;
  padding: 6px 10px;
  font-family: var(--font-number);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.page-about .principle-card h3 {
  margin: 0 0 12px;
  font-family: var(--font-headline);
  font-size: 22px;
  color: var(--text-primary);
}

.page-about .principle-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
}

.page-about .principle-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.page-about .principle-card__tags span {
  padding: 6px 10px;
  font-family: var(--font-number);
  font-size: 12px;
  color: var(--accent-primary);
  border: 1px solid var(--border);
  background: rgba(0, 255, 157, 0.04);
}

.page-about .timeline-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px 48px;
}

.page-about .timeline-visual {
  position: relative;
  padding-left: 18px;
  border-left: 2px solid var(--accent-primary);
}

.page-about .timeline-visual__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--border);
  filter: contrast(1.1) saturate(1.15);
}

.page-about .timeline-visual__caption {
  margin: 12px 0 0;
  font-family: var(--font-number);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}

.page-about .timeline-list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about .timeline-item {
  position: relative;
  margin: 0;
  padding: 0 0 44px 60px;
}

.page-about .timeline-item::before {
  content: "";
  position: absolute;
  left: 23px;
  top: 48px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--accent-primary), rgba(0, 255, 157, 0.12));
}

.page-about .timeline-item:last-child {
  padding-bottom: 0;
}

.page-about .timeline-item:last-child::before {
  display: none;
}

.page-about .timeline-item__marker {
  position: absolute;
  top: 0;
  left: 0;
  width: 48px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-number);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 50%, calc(100% - 8px) 100%, 0 100%);
}

.page-about .timeline-item--v4 .timeline-item__marker {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: var(--bg-primary);
}

.page-about .timeline-item__content {
  position: relative;
  padding: 20px 20px 20px 24px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  transition: border-color 0.15s ease;
}

.page-about .timeline-item__content::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-primary), transparent 40%);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.page-about .timeline-item:hover .timeline-item__content::before {
  opacity: 1;
}

.page-about .timeline-item__content h3 {
  margin: 0 0 8px;
  font-family: var(--font-headline);
  font-size: 19px;
  color: var(--text-primary);
}

.page-about .timeline-item__content p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
}

.page-about .certifications-visual {
  margin-bottom: 32px;
}

.page-about .certifications-visual__img {
  display: block;
  width: 100%;
  max-width: 300px;
  height: auto;
  object-fit: cover;
  padding: 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
}

.page-about .certifications-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-about .certification-card {
  position: relative;
  padding: 28px 24px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-primary);
  transition: border-color 0.15s ease;
}

.page-about .certification-card:nth-child(2) {
  border-left-color: var(--accent-secondary);
}

.page-about .certification-card:hover {
  border-color: rgba(0, 255, 157, 0.5);
}

.page-about .certification-card h3 {
  margin: 0 0 12px;
  font-family: var(--font-headline);
  font-size: 18px;
  color: var(--text-primary);
}

.page-about .certification-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
}

.page-about .partners-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px 48px;
}

.page-about .partners-copy__lead {
  margin: 0 0 24px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-primary);
}

.page-about .partners-copy__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .partners-copy__list li {
  position: relative;
  padding: 18px 0 18px 48px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
}

.page-about .partners-copy__list li:last-child {
  border-bottom: 0;
}

.page-about .partners-copy__list li::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 22px;
  width: 14px;
  height: 14px;
  background: var(--accent-secondary);
  clip-path: polygon(0 0, 100% 50%, 0 100%);
}

.page-about .partners-copy__list li strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
}

.page-about .partners-visual {
  position: relative;
  padding: 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
}

.page-about .partners-visual::before {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 14px;
  height: 14px;
  background: var(--accent-primary);
}

.page-about .partners-visual__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-about .partners-visual__caption {
  margin: 16px 0 0;
  font-family: var(--font-number);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
}

.page-about .recognition-quote {
  margin: 0 0 28px;
  padding: 24px 28px;
  background: linear-gradient(90deg, var(--about-coral-glow), transparent 70%);
  border-left: 4px solid var(--accent-secondary);
}

.page-about .recognition-quote__text {
  margin: 0;
  font-family: var(--font-headline);
  font-size: 20px;
  line-height: 1.6;
  color: var(--text-primary);
}

.page-about .recognition-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.page-about .recognition-list__item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 24px;
  background: var(--bg-secondary);
}

.page-about .recognition-list__mark {
  flex: 0 0 auto;
  padding: 6px 8px;
  font-family: var(--font-number);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-primary);
  border: 1px solid var(--border);
}

.page-about .recognition-list__body h3 {
  margin: 0 0 6px;
  font-family: var(--font-headline);
  font-size: 17px;
  color: var(--text-primary);
}

.page-about .recognition-list__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
}

.page-about .about-recognition {
  border-bottom: 0;
}

.page-about .about-cta {
  position: relative;
  padding: 56px 0 72px;
  border-top: 1px solid var(--border);
  background: linear-gradient(120deg, var(--about-green-glow), transparent 55%);
}

.page-about .about-cta h2 {
  margin: 0 0 16px;
  font-family: var(--font-headline);
  font-size: clamp(24px, 4vw, 36px);
  color: var(--text-primary);
}

.page-about .about-cta p {
  max-width: 42em;
  margin: 0 0 28px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-secondary);
}

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

@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 80px 0 72px;
  }

  .page-about .about-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-about .principles-layout {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  .page-about .principle-card--core {
    grid-row: span 2;
  }

  .page-about .timeline-layout {
    grid-template-columns: minmax(0, 2fr) minmax(0, 3fr);
    align-items: start;
  }

  .page-about .certifications-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .page-about .partners-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-about .recognition-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .recognition-list__item {
    flex-direction: column;
  }

  .page-about .about-cta {
    padding: 72px 0 88px;
  }

  .page-about .about-cta__actions {
    gap: 16px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-section__head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 8px 24px;
  }

  .page-about .about-section__head .section-title {
    flex-basis: 100%;
    margin: 10px 0 8px;
  }

  .page-about .timeline-layout {
    gap: 48px;
  }

  .page-about .partners-layout {
    gap: 56px;
  }
}