.page-about {
  --about-purple: var(--galaxy-purple);
  --about-gold: var(--star-gold);
  --about-cyan: var(--electric-cyan);
  --about-deep: var(--space-deep);
  --about-navy: var(--space-navy);
  --about-card: var(--bg-card);
  --about-line: var(--line-faint);
  --about-text: var(--text-bright);
  --about-dim: var(--text-dim);
  background:
    radial-gradient(ellipse 80% 50% at 72% 0%, rgba(34, 211, 238, 0.08), transparent 62%),
    radial-gradient(ellipse 62% 42% at 18% 30%, rgba(124, 92, 191, 0.11), transparent 64%),
    var(--about-deep);
  color: var(--about-text);
  font-family: var(--font-body);
  position: relative;
  overflow-x: clip;
  scroll-behavior: smooth;
}

.page-about [id] {
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-about p {
  margin: 0 0 1em;
}

.page-about img {
  max-width: 100%;
  display: block;
}

.page-about .about-hero {
  padding-top: 96px;
  padding-bottom: 48px;
  position: relative;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 420px;
  pointer-events: none;
  background-image:
    linear-gradient(var(--about-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-line) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.55;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 88%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 88%);
}

.page-about .about-hero__crumb {
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

.page-about .about-hero__grid {
  display: grid;
  gap: 32px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.page-about .about-hero__content {
  order: 1;
}

.page-about .about-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--about-dim);
  text-transform: uppercase;
  border: 1px solid var(--about-line);
  background: rgba(10, 14, 26, 0.6);
  border-radius: 999px;
  padding: 6px 14px;
  margin-bottom: 18px;
}

.page-about .about-hero__pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--about-cyan);
  box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.6);
  animation: about-pulse 2.2s ease-out infinite;
}

@keyframes about-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.55);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(34, 211, 238, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(34, 211, 238, 0);
  }
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-size: 32px;
  line-height: 1.16;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--about-text);
  margin: 0 0 20px;
  max-width: 720px;
}

.page-about .about-hero__title-accent {
  color: var(--about-cyan);
}

.page-about .about-hero__lead {
  font-size: 16px;
  line-height: 1.75;
  color: var(--about-dim);
  max-width: 560px;
  margin-bottom: 32px;
}

.page-about .about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--about-line);
  max-width: 560px;
}

.page-about .about-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 92px;
}

.page-about .about-hero__num {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--about-gold);
  line-height: 1;
}

.page-about .about-hero__label {
  font-size: 12px;
  color: var(--about-dim);
  letter-spacing: 0.08em;
}

.page-about .about-hero__figure {
  order: 0;
  background: linear-gradient(135deg, rgba(124, 92, 191, 0.32), rgba(34, 211, 238, 0.12) 45%, rgba(16, 26, 51, 0.85));
  border: 1px solid rgba(124, 92, 191, 0.32);
  border-radius: 20px;
  padding: 10px;
  margin: 0;
}

.page-about .about-hero__img {
  width: 100%;
  height: auto;
  border-radius: 14px;
  object-fit: cover;
  border: 1px solid var(--about-line);
  aspect-ratio: 16 / 9;
}

.page-about .about-hero__caption {
  padding: 12px 6px 4px;
  font-size: 12px;
  color: var(--about-dim);
  letter-spacing: 0.08em;
}

.page-about .about-document {
  display: grid;
  gap: 28px;
  align-items: start;
}

.page-about .about-rail {
  position: sticky;
  top: calc(var(--header-h) + 12px);
  z-index: 20;
  display: flex;
  gap: 4px;
  overflow-x: auto;
  background: rgba(13, 17, 33, 0.85);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid var(--about-line);
  border-radius: 999px;
  padding: 6px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.page-about .about-rail__link {
  white-space: nowrap;
  font-size: 13px;
  color: var(--about-dim);
  padding: 8px 14px;
  border-radius: 999px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color 0.25s ease, background 0.25s ease;
}

.page-about .about-rail__link:hover {
  color: var(--about-text);
  background: rgba(124, 92, 191, 0.18);
}

.page-about .about-rail__num {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--about-gold);
  font-size: 12px;
}

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

.page-about .about-origin__grid {
  display: grid;
  gap: 28px;
}

.page-about .about-origin__text {
  font-size: 16px;
  line-height: 1.8;
  color: var(--about-dim);
}

.page-about .about-origin__card {
  background: rgba(16, 26, 51, 0.68);
  border: 1px solid var(--about-line);
  border-left: 3px solid var(--about-gold);
  border-radius: var(--radius);
  padding: 20px 22px;
}

.page-about .about-origin__card-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--about-text);
  margin-bottom: 12px;
}

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

.page-about .about-origin__item {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--about-line);
  font-size: 14px;
}

.page-about .about-origin__item:last-child {
  border-bottom: none;
  padding-bottom: 2px;
}

.page-about .about-origin__item-label {
  color: var(--about-dim);
}

.page-about .about-origin__item-value {
  color: var(--about-text);
  font-weight: 600;
  text-align: right;
}

.page-about .about-timeline {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 14px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(to bottom, var(--about-purple), var(--about-cyan), var(--about-gold));
  opacity: 0.6;
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 24px 48px;
}

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

.page-about .about-timeline__node {
  position: absolute;
  left: 8px;
  top: 30px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--about-purple);
  border: 2px solid var(--about-gold);
  box-shadow: 0 0 14px rgba(124, 92, 191, 0.8);
}

.page-about .about-timeline__card {
  background: rgba(16, 26, 51, 0.72);
  border: 1px solid var(--about-line);
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.page-about .about-timeline__card[open] {
  border-color: rgba(124, 92, 191, 0.46);
}

.page-about .about-timeline__summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 14px;
  padding: 16px 18px;
}

.page-about .about-timeline__summary::-webkit-details-marker {
  display: none;
}

.page-about .about-timeline__year {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--about-gold);
  letter-spacing: 0.06em;
  background: rgba(232, 185, 106, 0.1);
  border: 1px solid rgba(232, 185, 106, 0.22);
  border-radius: 999px;
  padding: 4px 12px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.page-about .about-timeline__card:hover .about-timeline__year {
  transform: scale(1.06);
  box-shadow: 0 0 18px rgba(232, 185, 106, 0.24);
}

.page-about .about-timeline__name {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--about-text);
}

.page-about .about-timeline__hint {
  margin-left: auto;
  font-size: 12px;
  color: var(--about-dim);
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.2);
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
}

.page-about .about-timeline__card[open] .about-timeline__hint {
  color: var(--about-gold);
  border-color: rgba(232, 185, 106, 0.28);
  background: rgba(232, 185, 106, 0.08);
}

.page-about .about-timeline__body {
  padding: 0 18px 18px;
  border-top: 1px dashed var(--about-line);
  color: var(--about-dim);
  font-size: 14px;
  line-height: 1.7;
}

.page-about .about-timeline__body p {
  margin: 12px 0 0;
}

.page-about .about-tech__grid {
  display: grid;
  gap: 32px;
}

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

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

.page-about .about-tech__card {
  padding: 20px;
}

.page-about .about-tech__card:hover {
  border-color: rgba(124, 92, 191, 0.55);
}

.page-about .about-tech__card-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--about-text);
}

.page-about .about-tech__card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--about-dim);
  margin: 0;
}

.page-about .about-tech__figure {
  margin: 20px 0 0;
  background: linear-gradient(140deg, rgba(16, 26, 51, 0.9), rgba(10, 14, 26, 0.7));
  border: 1px solid var(--about-line);
  border-radius: 18px;
  padding: 10px;
}

.page-about .about-tech__figure img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--about-line);
}

.page-about .about-tech__figure figcaption {
  padding: 10px 4px 2px;
  font-size: 12px;
  color: var(--about-dim);
  letter-spacing: 0.08em;
}

.page-about .about-status {
  background: rgba(10, 14, 26, 0.82);
  border: 1px solid var(--about-line);
  border-radius: var(--radius);
  padding: 22px 20px 18px;
  position: relative;
  overflow: hidden;
  align-self: start;
}

.page-about .about-status::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--about-purple), var(--about-cyan), var(--about-gold));
}

.page-about .about-status__title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--about-text);
  margin: 0 0 12px;
}

.page-about .about-status__list {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-about .about-status__row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--about-line);
}

.page-about .about-status__row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-about .about-status__row dt {
  font-size: 13px;
  color: var(--about-dim);
}

.page-about .about-status__row dd {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--about-cyan);
  text-align: right;
}

.page-about .about-team__grid {
  display: grid;
  gap: 32px;
}

.page-about .about-team__figure {
  margin: 0;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.1), rgba(16, 26, 51, 0.75));
  border: 1px solid var(--about-line);
  border-radius: 18px;
  padding: 10px;
}

.page-about .about-team__figure img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--about-line);
}

.page-about .about-team__figure figcaption {
  padding: 10px 4px 2px;
  font-size: 12px;
  color: var(--about-dim);
  letter-spacing: 0.08em;
}

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

.page-about .about-team__value {
  background: rgba(16, 26, 51, 0.62);
  border: 1px solid var(--about-line);
  border-left: 3px solid var(--about-gold);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.page-about .about-team__value:hover {
  transform: translateY(-2px);
  border-color: var(--about-purple);
}

.page-about .about-team__value h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--about-text);
  margin: 0 0 8px;
}

.page-about .about-team__value p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--about-dim);
  margin: 0;
}

.page-about .about-ecosystem__grid {
  --gap: 20px;
}

.page-about .about-eco-card {
  padding: 22px;
}

.page-about .about-eco-card h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--about-text);
  margin: 14px 0 8px;
}

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

.page-about .about-commit__panel {
  background:
    radial-gradient(ellipse at 18% 20%, rgba(124, 92, 191, 0.2), transparent 50%),
    radial-gradient(ellipse at 82% 78%, rgba(34, 211, 238, 0.12), transparent 50%),
    rgba(16, 26, 51, 0.72);
  border: 1px solid var(--about-line);
  border-radius: 20px;
  padding: 40px 24px;
  text-align: center;
}

.page-about .about-commit__panel .xk-section-head__index {
  display: inline-block;
  margin-bottom: 8px;
}

.page-about .about-commit__panel .xk-section-head__title {
  margin-top: 4px;
}

.page-about .about-commit__lead {
  font-size: 22px;
  line-height: 1.6;
  color: var(--about-text);
  max-width: 680px;
  margin: 20px auto 24px;
  font-family: var(--font-display);
  font-weight: 500;
}

.page-about .about-commit__promises {
  display: grid;
  gap: 12px;
  max-width: 680px;
  margin: 0 auto 28px;
  text-align: left;
}

.page-about .about-commit__promises p {
  background: rgba(16, 26, 51, 0.68);
  border: 1px solid var(--about-line);
  border-left: 3px solid var(--about-cyan);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--about-dim);
  margin: 0;
}

.page-about .about-commit__more {
  font-size: 14px;
  color: var(--about-dim);
  margin-bottom: 24px;
}

.page-about .about-commit__link {
  color: var(--about-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, 0.4);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-about .about-commit__link:hover {
  color: var(--about-gold);
  border-color: rgba(232, 185, 106, 0.5);
}

.page-about .about-commit__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

@media (min-width: 768px) {
  .page-about .about-hero__title {
    font-size: 40px;
    line-height: 1.12;
  }

  .page-about .about-hero__lead {
    font-size: 17px;
  }

  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
    gap: 40px;
  }

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

  .page-about .about-commit__panel {
    padding: 56px 48px;
  }

  .page-about .about-commit__promises {
    grid-template-columns: 1fr 1fr 1fr;
    text-align: left;
  }

  .page-about .about-commit__promises p {
    border-left-width: 3px;
  }
}

@media (min-width: 860px) {
  .page-about .about-timeline::before {
    left: 50%;
    transform: translateX(-50%);
  }

  .page-about .about-timeline__item {
    width: calc(50% - 48px);
    margin-left: auto;
    padding-left: 0;
    padding-right: 56px;
  }

  .page-about .about-timeline__item:nth-child(odd) {
    margin-right: auto;
    margin-left: 0;
    padding-right: 0;
    padding-left: 56px;
  }

  .page-about .about-timeline__node {
    left: auto;
    right: -7px;
    top: 32px;
  }

  .page-about .about-timeline__item:nth-child(odd) .about-timeline__node {
    left: -7px;
    right: auto;
  }

  .page-about .about-timeline__item:nth-child(odd) .about-timeline__hint {
    order: -1;
    margin-left: 0;
    margin-right: auto;
  }

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

@media (min-width: 1024px) {
  .page-about .about-hero {
    padding-top: 112px;
    padding-bottom: 64px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: 56px;
  }

  .page-about .about-hero__content {
    order: 0;
  }

  .page-about .about-hero__figure {
    order: 1;
  }

  .page-about .about-tech__grid {
    grid-template-columns: minmax(0, 1fr) 288px;
    gap: 40px;
    align-items: start;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 44px;
    align-items: center;
  }
}

@media (min-width: 1100px) {
  .page-about .about-document {
    grid-template-columns: minmax(0, 1fr) 210px;
    gap: 40px;
  }

  .page-about .about-rail {
    order: 2;
    flex-direction: column;
    border-radius: var(--radius);
    padding: 10px;
    overflow: visible;
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-about .about-rail__link {
    padding: 10px 14px;
    border-radius: var(--radius-sm);
  }

  .page-about .about-document__main {
    order: 1;
    min-width: 0;
  }
}