.page-about {
  --about-index-width: 260px;
  --about-gap: clamp(24px, 4vw, 56px);
  --about-card-ink: rgba(17, 27, 46, 0.92);
}

.page-about .about-hero {
  position: relative;
  padding: 48px 0 36px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 44px;
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -40px;
  width: 300px;
  height: 300px;
  background:
    linear-gradient(135deg, var(--accent-cyan) 0 2px, transparent 2px 12px, var(--gold) 12px 14px, transparent 14px 22px, var(--accent-purple) 22px 24px, transparent 24px);
  background-size: 24px 24px;
  opacity: 0.22;
  pointer-events: none;
  z-index: 0;
}

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

.page-about .about-hero__tag {
  margin-bottom: 18px;
}

.page-about .about-hero__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 1.15;
  color: var(--text-cold);
  margin: 0 0 20px;
}

.page-about .about-hero__lead {
  max-width: 760px;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--text-fog);
  margin: 0 0 26px;
}

.page-about .about-hero__lead strong {
  color: var(--text-cold);
  font-weight: 600;
}

.page-about .about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-about .about-hero__meta span {
  font-family: var(--font-heading);
  color: var(--gold);
  letter-spacing: 0.04em;
}

.page-about .about-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

@media (min-width: 920px) {
  .page-about .about-layout {
    grid-template-columns: var(--about-index-width) minmax(0, 1fr);
    align-items: start;
    gap: var(--about-gap);
  }

  .page-about .about-index {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

.page-about .about-index {
  display: grid;
  gap: 16px;
}

.page-about .about-index__box {
  background: var(--glass);
  border: 1px solid var(--line);
  padding: 20px;
}

.page-about .about-index__eyebrow {
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 12px;
}

.page-about .about-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: about-index;
}

.page-about .about-index__list li {
  counter-increment: about-index;
  margin-bottom: 6px;
}

.page-about .about-index__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  color: var(--text-cold);
  text-decoration: none;
  padding: 8px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.25s ease, border-color 0.25s ease;
}

.page-about .about-index__list a::before {
  content: counter(about-index, decimal-leading-zero);
  font-family: var(--font-heading);
  color: var(--accent-cyan);
  font-size: 0.875rem;
}

.page-about .about-index__list a:hover {
  color: var(--accent-cyan);
  border-bottom-color: var(--accent-cyan);
}

.page-about .about-index__note {
  border-left: 2px solid var(--accent-cyan);
  padding: 6px 0 6px 16px;
}

.page-about .about-index__note p:last-child {
  color: var(--text-fog);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin: 0;
}

.page-about .about-index__note .about-index__eyebrow {
  margin-bottom: 6px;
}

.page-about .about-index__contact {
  background: var(--bg-ink);
  border: 1px solid var(--line);
  padding: 18px;
}

.page-about .about-index__contact p {
  color: var(--text-fog);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin: 0 0 14px;
}

.page-about .about-index__contact .about-index__eyebrow {
  margin-bottom: 8px;
}

.page-about .about-main {
  min-width: 0;
}

.page-about .about-section {
  padding: 40px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-section:first-child {
  padding-top: 0;
}

.page-about .about-section:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .about-section__heading {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 18px;
}

.page-about .about-section__heading .editorial-number {
  flex: 0 0 auto;
}

.page-about .about-section__heading .section-title {
  margin: 0;
}

.page-about .about-section__body {
  max-width: 760px;
}

.page-about .about-section__intro {
  color: var(--text-fog);
  font-size: 1.0625rem;
  line-height: 1.75;
  margin: 0 0 24px;
}

.page-about .about-section__body p {
  line-height: 1.8;
  color: var(--text-fog);
}

.page-about .about-section__body p strong {
  color: var(--text-cold);
  font-weight: 600;
}

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

@media (min-width: 600px) {
  .page-about .about-facts {
    grid-template-columns: repeat(4, 1fr);
  }
}

.page-about .about-facts__item {
  border: 1px solid var(--line);
  background: var(--glass);
  padding: 18px 14px;
  text-align: center;
}

.page-about .about-facts__num {
  display: block;
  font-family: var(--font-heading);
  font-size: 2.375rem;
  line-height: 1;
  color: var(--accent-cyan);
  margin-bottom: 8px;
}

.page-about .about-facts__label {
  font-size: 0.875rem;
  color: var(--text-fog);
}

.page-about .about-dev-grid {
  display: grid;
  gap: 28px;
  margin-top: 10px;
}

@media (min-width: 860px) {
  .page-about .about-dev-grid {
    grid-template-columns: minmax(0, 1fr) minmax(260px, 340px);
    align-items: start;
  }
}

.page-about .about-timeline {
  position: relative;
  padding-left: 26px;
  border-left: 2px solid var(--accent-cyan);
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 32px;
}

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

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -33px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--bg-deep);
  border: 3px solid var(--accent-cyan);
}

.page-about .about-timeline__year {
  font-family: var(--font-heading);
  font-size: 2rem;
  line-height: 1.1;
  color: var(--accent-cyan);
  margin-bottom: 8px;
}

.page-about .about-timeline__card {
  background: var(--glass);
  border: 1px solid var(--line);
  padding: 18px 20px;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.page-about .about-timeline__card:hover {
  border-color: var(--accent-cyan);
}

.page-about .about-timeline__card h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--text-cold);
  margin: 0 0 8px;
}

.page-about .about-timeline__card p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-fog);
}

.page-about .about-figure {
  margin: 24px 0;
  border: 1px solid var(--line);
  background: var(--bg-ink);
  overflow: hidden;
}

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

.page-about .about-figure--portrait {
  max-width: 400px;
}

.page-about .about-columns {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 24px 0;
}

@media (min-width: 680px) {
  .page-about .about-columns {
    grid-template-columns: 1.05fr 0.95fr 1fr;
    align-items: start;
  }
}

.page-about .about-card {
  position: relative;
  border: 1px solid var(--line);
  padding: 24px 22px;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.page-about .about-card:hover {
  transform: translateY(-6px);
  border-color: var(--gold);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.25);
}

.page-about .about-card--contact {
  background: var(--about-card-ink);
  transform: translateY(14px);
}

.page-about .about-card--contact:hover {
  transform: translateY(8px);
}

@media (min-width: 680px) {
  .page-about .about-columns {
    grid-template-columns: 1.05fr 0.95fr 1fr;
    align-items: start;
  }
}

.page-about .about-card__no {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  line-height: 1;
  color: var(--gold);
  margin: 0 0 12px;
}

.page-about .about-card h3 {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  color: var(--text-cold);
  margin: 0 0 12px;
}

.page-about .about-card p {
  color: var(--text-fog);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin: 0 0 18px;
}

.page-about .about-card .tag {
  margin-top: auto;
}

.page-about .about-columns__figure-wrap {
  margin-top: 22px;
}

.page-about .about-columns__figure-wrap .about-figure {
  max-width: 460px;
}

.page-about .about-promise {
  list-style: none;
  margin: 26px 0;
  padding: 0;
}

.page-about .about-promise li {
  position: relative;
  padding: 20px 20px 20px 30px;
  border: 1px solid var(--line);
  background: var(--glass);
  margin-bottom: 14px;
}

.page-about .about-promise li::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 26px;
  width: 7px;
  height: 7px;
  background: var(--gold);
}

.page-about .about-promise strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.125rem;
  color: var(--text-cold);
  margin-bottom: 6px;
}

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

.page-about .about-promise__figure {
  max-width: 480px;
}

.page-about .about-faq {
  margin-top: 36px;
}

.page-about .about-faq__title {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  color: var(--text-cold);
  margin: 0 0 16px;
}

.page-about .about-faq__item {
  background: var(--glass);
  border: 1px solid var(--line);
  padding: 14px 18px;
  margin-bottom: 10px;
}

.page-about .about-faq__item summary {
  cursor: pointer;
  color: var(--text-cold);
  font-weight: 600;
  font-family: var(--font-body);
  line-height: 1.6;
}

.page-about .about-faq__item summary:hover {
  color: var(--accent-cyan);
}

.page-about .about-faq__item p {
  margin: 12px 0 0;
  color: var(--text-fog);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.page-about .about-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-top: 36px;
  padding: 22px;
  border: 1px solid var(--gold);
  background: linear-gradient(135deg, rgba(212, 167, 44, 0.12), rgba(255, 255, 255, 0.02));
}

.page-about .about-cta p {
  flex-basis: 100%;
  margin: 0 0 6px;
  color: var(--text-fog);
}

.page-about .about-cta .btn {
  margin-top: 2px;
}