.page-about {
  position: relative;
  overflow: hidden;
  color: var(--c-primary);
  background: var(--c-white);
  --about-space-xl: clamp(72px, 10vw, 140px);
  --about-space-lg: clamp(56px, 8vw, 100px);
  --about-radius: 6px;
}

.page-about .breadcrumb {
  max-width: var(--container);
  margin: 0 auto;
  padding: calc(var(--header-h) + 24px) var(--container-pad) 0;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--c-muted);
  position: relative;
  z-index: 2;
}

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

.page-about .breadcrumb a:hover {
  color: var(--c-accent);
}

.page-about .breadcrumb [aria-current="page"] {
  color: var(--c-primary);
  font-weight: 600;
}

.page-about .about-hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  background: var(--c-primary);
  color: var(--c-white);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% 90%, 0 100%);
}

.page-about .about-hero__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
  z-index: 1;
}

.page-about .about-hero__shape {
  position: absolute;
  z-index: 2;
  pointer-events: none;
}

.page-about .about-hero__shape--one {
  top: 0;
  right: 0;
  width: 38%;
  height: 62%;
  background: linear-gradient(135deg, transparent 0%, rgba(255, 107, 53, 0.28) 100%);
  clip-path: polygon(22% 0, 100% 0, 100% 100%, 0 100%);
}

.page-about .about-hero__shape--two {
  bottom: 8%;
  left: 42%;
  width: 30%;
  height: 26%;
  background: rgba(255, 215, 0, 0.10);
  clip-path: polygon(6% 0, 100% 26%, 94% 100%, 0 76%);
}

.page-about .about-hero__content {
  position: relative;
  z-index: 3;
  max-width: var(--container);
  width: 100%;
  margin: 0 auto;
  padding: calc(var(--header-h) + 40px) var(--container-pad) 80px;
}

.page-about .about-hero__content .section-kicker {
  color: var(--c-gold);
  margin-bottom: 20px;
}

.page-about .about-hero__content h1 {
  font-family: var(--font-display);
  font-size: clamp(36px, 6vw, 72px);
  line-height: 1.04;
  margin: 0 0 22px;
  color: var(--c-white);
  letter-spacing: 0.02em;
  max-width: 12em;
}

.page-about .about-hero__content h1 span {
  display: block;
  font-size: 0.62em;
  color: var(--c-gold);
  margin-top: 10px;
  letter-spacing: 0.08em;
}

.page-about .about-hero__content p {
  max-width: 26em;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.82);
  margin: 0 0 34px;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.page-about .about-hero__actions .btn-line {
  border-color: rgba(255, 255, 255, 0.55);
  color: var(--c-white);
}

.page-about .about-hero__actions .btn-line:hover {
  border-color: var(--c-white);
  background: rgba(255, 255, 255, 0.08);
}

.page-about .about-hero__side-note {
  position: absolute;
  right: clamp(12px, 3vw, 40px);
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  display: none;
}

.page-about .about-hero__side-note .vertical-note {
  color: rgba(255, 255, 255, 0.45);
}

.page-about .narrative-section {
  background: var(--c-white);
  padding-top: var(--about-space-xl);
  padding-bottom: var(--about-space-xl);
}

.page-about .narrative-section__head,
.page-about .timeline-section__head,
.page-about .tech-section__head,
.page-about .partner-section__head,
.page-about .users-section__head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-bottom: 32px;
  position: relative;
}

.page-about .narrative-section__head .chapter-mark,
.page-about .timeline-section__head .chapter-mark,
.page-about .tech-section__head .chapter-mark,
.page-about .partner-section__head .chapter-mark,
.page-about .users-section__head .chapter-mark {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(54px, 7vw, 92px);
  line-height: 1;
  color: var(--c-gold);
  opacity: 0.92;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.page-about .narrative-section__head .section-kicker,
.page-about .timeline-section__head .section-kicker,
.page-about .tech-section__head .section-kicker,
.page-about .partner-section__head .section-kicker,
.page-about .users-section__head .section-kicker {
  margin-top: 6px;
}

.page-about .narrative-section__head h2,
.page-about .timeline-section__head h2,
.page-about .tech-section__head h2,
.page-about .partner-section__head h2,
.page-about .users-section__head h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.1;
  margin: 10px 0 0;
  color: var(--c-primary);
}

.page-about .narrative-section__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
  padding: 48px 0 40px;
  margin-top: 24px;
}

.page-about .narrative-section__statement {
  max-width: 42em;
}

.page-about .narrative-section__statement p {
  font-size: 17px;
  line-height: 2;
  color: var(--c-primary);
  margin-bottom: 20px;
}

.page-about .narrative-section__statement strong {
  color: var(--c-accent);
  font-weight: 700;
}

.page-about .narrative-section__facts {
  border-left: 3px solid var(--c-accent);
  padding-left: 24px;
}

.page-about .narrative-section__facts h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--c-muted);
  letter-spacing: 0.04em;
  margin: 0 0 18px;
}

.page-about .narrative-section__facts ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .narrative-section__facts li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 14px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--c-primary);
}

.page-about .narrative-section__facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  background: var(--c-accent);
  clip-path: polygon(25% 0, 100% 0, 75% 100%, 0 100%);
}

.page-about .timeline-section {
  background: var(--c-primary);
  color: var(--c-white);
  padding-top: var(--about-space-xl);
  padding-bottom: var(--about-space-xl);
  position: relative;
  clip-path: polygon(0 0, 100% 2%, 100% 100%, 0 98%);
}

.page-about .timeline-section .section-kicker {
  color: var(--c-accent);
}

.page-about .timeline-section h2 {
  color: var(--c-white);
}

.page-about .timeline-section__head .chapter-mark {
  color: var(--c-gold);
}

.page-about .timeline-section__head p {
  max-width: 28em;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 14px;
}

.page-about .timeline {
  position: relative;
  margin: 56px auto 0;
  max-width: 1160px;
  padding-left: 34px;
  border-left: 2px solid rgba(255, 215, 0, 0.35);
}

.page-about .timeline__line {
  display: none;
}

.page-about .timeline__item {
  position: relative;
  margin-bottom: 44px;
}

.page-about .timeline__item::before {
  content: "";
  position: absolute;
  left: -43px;
  top: 26px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--c-gold);
  border: 3px solid var(--c-primary);
  box-shadow: 0 0 0 2px var(--c-accent), 0 0 20px rgba(255, 107, 53, 0.4);
}

.page-about .timeline__year {
  font-family: var(--font-display);
  font-size: clamp(34px, 4vw, 48px);
  line-height: 1;
  color: var(--c-gold);
  letter-spacing: 0.02em;
}

.page-about .timeline__card {
  margin-top: 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: var(--about-radius);
  padding: 20px 24px;
  transition: transform 0.3s var(--ease-out), border-color 0.3s ease, background 0.3s ease;
}

.page-about .timeline__card:hover {
  transform: translateX(4px);
  border-color: rgba(255, 107, 53, 0.55);
  background: rgba(255, 255, 255, 0.09);
}

.page-about .timeline__card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--c-white);
  margin: 0 0 8px;
}

.page-about .timeline__card p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.72);
  margin: 0;
}

.page-about .tech-section {
  background: var(--c-light);
  padding-top: var(--about-space-xl);
  padding-bottom: var(--about-space-xl);
}

.page-about .tech-section__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  margin-top: 36px;
}

.page-about .tech-section__content {
  display: flex;
  flex-direction: column;
}

.page-about .tech-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}

.page-about .tech-stat {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--about-radius);
  padding: 20px 12px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform 0.28s var(--ease-out), box-shadow 0.28s ease;
}

.page-about .tech-stat:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.page-about .tech-stat__num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1;
  color: var(--c-accent);
}

.page-about .tech-stat__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  color: var(--c-muted);
  letter-spacing: 0.03em;
}

.page-about .tech-section__desc {
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-primary);
  max-width: 36em;
  margin: 0 0 28px;
}

.page-about .tech-section__img {
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--about-radius);
  box-shadow: var(--shadow-sm);
}

.page-about .tech-section__certs {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.page-about .tech-section__certs-img-wrap {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--about-radius);
  padding: 12px;
  box-shadow: var(--shadow-sm);
}

.page-about .tech-section__certs-img {
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 4px;
}

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

.page-about .cert-list li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--about-radius);
  padding: 18px 20px;
  margin-bottom: 12px;
  transition: border-color 0.3s ease;
}

.page-about .cert-list li:hover {
  border-color: var(--c-accent);
}

.page-about .cert-list__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--c-white);
  background: linear-gradient(135deg, var(--c-accent), var(--c-gold));
  border-radius: 50%;
}

.page-about .cert-list strong {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-primary);
}

.page-about .cert-list p {
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-muted);
}

.page-about .partner-section {
  background: var(--c-white);
  padding-top: var(--about-space-xl);
  padding-bottom: var(--about-space-xl);
}

.page-about .partner-section__intro {
  max-width: 42em;
  margin-top: 18px;
}

.page-about .partner-section__intro p {
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-primary);
}

.page-about .partner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 40px;
}

.page-about .partner-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s ease;
}

.page-about .partner-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, transparent 48%, rgba(255, 107, 53, 0.12) 50%, rgba(255, 107, 53, 0.12) 54%, transparent 56%);
  clip-path: polygon(100% 0, 100% 100%, 0 0);
}

.page-about .partner-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.page-about .partner-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--c-white);
  background: var(--c-primary);
  border-radius: 10px;
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
}

.page-about .partner-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--c-primary);
  margin: 0 0 10px;
}

.page-about .partner-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-muted);
  margin: 0;
}

.page-about .users-section {
  background: var(--c-primary);
  color: var(--c-white);
  padding-top: var(--about-space-xl);
  padding-bottom: var(--about-space-xl);
  position: relative;
  clip-path: polygon(0 2%, 100% 0, 100% 100%, 0 100%);
}

.page-about .users-section .section-kicker {
  color: var(--c-accent);
}

.page-about .users-section h2 {
  color: var(--c-white);
}

.page-about .users-section__head .chapter-mark {
  color: var(--c-gold);
}

.page-about .users-section__stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 40px;
}

.page-about .user-stat {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: background 0.3s ease, transform 0.3s var(--ease-out);
}

.page-about .user-stat:hover {
  background: rgba(255, 255, 255, 0.10);
  transform: translateY(-4px);
}

.page-about .user-stat::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-gold));
  transform: scaleX(0.6);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out);
}

.page-about .user-stat:hover::before {
  transform: scaleX(1);
}

.page-about .user-stat__num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(44px, 6vw, 72px);
  line-height: 1;
  color: var(--c-gold);
  letter-spacing: 0.02em;
}

.page-about .user-stat__label {
  display: block;
  margin-top: 12px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.72);
  letter-spacing: 0.04em;
}

.page-about .users-section__note {
  max-width: 40em;
  margin: 56px auto 0;
  text-align: center;
}

.page-about .users-section__note p {
  font-size: 15px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 18px;
}

.page-about .users-section__note .text-link {
  color: var(--c-gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 215, 0, 0.4);
  transition: border-color 0.3s ease;
}

.page-about .users-section__note .text-link:hover {
  border-color: var(--c-gold);
}

.page-about .users-section__dot {
  color: var(--c-accent);
  margin: 0 8px;
}

@media (min-width: 640px) {
  .page-about .narrative-section__body {
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: start;
  }

  .page-about .tech-stats {
    gap: 16px;
  }

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

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

@media (min-width: 768px) {
  .page-about .about-hero__side-note {
    display: block;
  }

  .page-about .timeline {
    padding-left: 0;
    border-left: none;
    display: flex;
    flex-wrap: wrap;
    position: relative;
  }

  .page-about .timeline::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    transform: translateX(-50%);
    background: linear-gradient(to bottom, var(--c-gold), var(--c-accent), rgba(255, 215, 0, 0.12));
  }

  .page-about .timeline__line {
    display: none;
  }

  .page-about .timeline__item {
    width: 46%;
    margin-left: 0;
    margin-bottom: 56px;
  }

  .page-about .timeline__item::before {
    left: auto;
    right: -36px;
    top: 28px;
    width: 18px;
    height: 18px;
  }

  .page-about .timeline__item:nth-child(even) {
    margin-left: 54%;
  }

  .page-about .timeline__item:nth-child(even)::before {
    left: -36px;
    right: auto;
  }

  .page-about .timeline__item:nth-child(odd) .timeline__card {
    text-align: left;
  }

  .page-about .timeline__item:nth-child(even) .timeline__card {
    text-align: left;
  }

  .page-about .timeline__year {
    font-size: clamp(44px, 5vw, 60px);
  }

  .page-about .timeline__card h3 {
    font-size: 20px;
  }

  .page-about .timeline__card p {
    font-size: 15px;
  }

  .page-about .timeline__card:hover {
    transform: translateX(-4px);
  }

  .page-about .timeline__item:nth-child(even) .timeline__card:hover {
    transform: translateX(4px);
  }

  .page-about .tech-section__grid {
    grid-template-columns: 1fr 1fr;
    gap: 52px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero {
    min-height: 92vh;
  }

  .page-about .about-hero__content {
    padding-left: calc(var(--container-pad) + 20px);
  }

  .page-about .about-hero__side-note {
    right: clamp(28px, 5vw, 72px);
  }

  .page-about .timeline-section__head p {
    font-size: 16px;
  }

  .page-about .partner-section__intro {
    margin-top: 22px;
  }

  .page-about .users-section__note {
    margin-top: 72px;
  }
}