.page-about {
  background-color: var(--paper);
  background-image:
    linear-gradient(rgba(11, 61, 86, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 61, 86, 0.035) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-about .container {
  width: min(1200px, 100% - 48px);
  margin-inline: auto;
}

.page-about .breadcrumb {
  margin-top: 32px;
}

.page-about .breadcrumb-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.page-about .breadcrumb-list a {
  color: var(--deep-blue);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-about .breadcrumb-list a:hover,
.page-about .breadcrumb-list a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
  outline: none;
}

.page-about .breadcrumb-list li + li::before {
  content: "/";
  color: var(--gray);
  margin-right: 8px;
}

.page-about .about-hero {
  position: relative;
  padding: 40px 0 36px;
  border-bottom: 3px solid var(--ink);
  margin-bottom: 28px;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--neon) 0 25%, var(--orange) 25% 50%, var(--deep-blue) 50% 75%, var(--ink) 75% 100%);
}

.page-about .about-hero__coords {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 16px;
}

.page-about .about-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.9rem, 4vw, 2.85rem);
  font-weight: 900;
  line-height: 1.15;
  margin: 0 0 16px;
  letter-spacing: 0.01em;
}

.page-about .about-hero__desc {
  max-width: 760px;
  font-size: 1.02rem;
  color: var(--gray);
  margin: 0 0 26px;
}

.page-about .about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.page-about .about-hero__meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 120px;
}

.page-about .about-hero__meta-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray);
}

.page-about .about-hero__meta-value {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.02rem;
  color: var(--ink);
}

.page-about .about-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 52px;
}

@media (min-width: 700px) {
  .page-about .about-stat-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }
}

@media (min-width: 1100px) {
  .page-about .about-stat-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
  }
}

.page-about .about-stat-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 14px;
  background: var(--paper);
  border: 1px solid var(--border);
  box-shadow: 2px 2px 0 rgba(26, 29, 31, 0.08);
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-about .about-stat-card:hover,
.page-about .about-stat-card:focus-within {
  transform: translateY(-3px);
  border-color: var(--deep-blue);
  box-shadow: 4px 6px 0 rgba(11, 61, 86, 0.12);
}

.page-about .about-stat-card__num {
  font-family: var(--font-mono);
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--deep-blue);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.page-about .about-stat-card__label {
  font-weight: 800;
  font-size: 0.88rem;
  line-height: 1.4;
}

.page-about .about-stat-card__note {
  font-size: 0.76rem;
  color: var(--gray);
  line-height: 1.5;
}

.page-about .content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  padding-bottom: 64px;
}

@media (min-width: 992px) {
  .page-about .content-grid {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 44px;
    align-items: start;
  }
}

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

.page-about .about-section {
  position: relative;
  margin-bottom: 60px;
}

.page-about .about-section .section-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--ink);
  margin-bottom: 24px;
}

.page-about .about-section .section-number {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--neon);
  background: var(--ink);
  padding: 3px 9px;
  line-height: 1.4;
}

.page-about .about-section .section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2vw, 1.55rem);
  font-weight: 900;
  margin: 0;
  letter-spacing: 0.01em;
}

.page-about .about-origin {
  max-width: 780px;
}

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

.page-about .about-origin__lead {
  font-size: 1.08rem;
  font-weight: 600;
  line-height: 1.8;
}

.page-about .about-origin .note {
  margin-top: 28px;
  padding: 16px 18px;
  background: var(--tag-bg);
  border: 1px solid var(--border);
  border-left: 4px solid var(--neon);
}

.page-about .note-title {
  display: block;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.page-about .note p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--gray);
}

.page-about .about-data {
  background: var(--code-bg);
  border: 1px solid var(--border);
  padding: 22px 18px;
}

@media (min-width: 700px) {
  .page-about .about-data {
    padding: 30px 32px;
  }
}

.page-about .about-data__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

@media (min-width: 900px) {
  .page-about .about-data__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    gap: 32px;
  }
}

.page-about .about-data__copy > p {
  margin: 0 0 1em;
  color: var(--ink);
}

.page-about .about-data__steps {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border-left: 2px solid var(--border);
}

.page-about .about-step {
  position: relative;
  padding: 0 0 18px 24px;
}

.page-about .about-step:last-child {
  padding-bottom: 4px;
}

.page-about .about-step::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 5px;
  width: 10px;
  height: 10px;
  background: var(--paper);
  border: 2px solid var(--neon);
  border-radius: 50%;
  transition: background-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-about .about-step:hover::before {
  background: var(--neon);
  transform: scale(1.15);
}

.page-about .about-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--orange);
  margin-bottom: 3px;
}

.page-about .about-step__text {
  display: block;
  font-size: 0.92rem;
  color: var(--gray);
  line-height: 1.7;
}

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

.page-about .about-version__intro {
  max-width: 760px;
  color: var(--gray);
  margin-bottom: 24px;
}

.page-about .about-version-list {
  border-top: 2px solid var(--ink);
}

.page-about .about-version-item {
  background: var(--paper);
  border-bottom: 1px solid var(--border);
}

.page-about .about-version-item__head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 12px;
  cursor: pointer;
  list-style: none;
  transition: background-color 0.2s var(--ease);
}

.page-about .about-version-item__head::-webkit-details-marker,
.page-about .about-version-item__head::marker {
  display: none;
  content: "";
}

.page-about .about-version-item__head:hover,
.page-about .about-version-item__head:focus-visible {
  background: var(--tag-bg);
  outline: none;
}

.page-about .about-version-item[open] .about-version-item__head {
  background: var(--tag-bg);
}

.page-about .about-version-item__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--deep-blue);
  background: var(--tag-bg);
  padding: 2px 7px;
}

.page-about .about-version-item__title {
  flex: 1;
  font-weight: 800;
  font-size: 0.95rem;
  line-height: 1.4;
}

.page-about .about-version-item__icon {
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--orange);
  font-weight: 700;
  transition: transform 0.2s var(--ease);
}

.page-about .about-version-item[open] .about-version-item__icon {
  transform: rotate(45deg);
}

.page-about .about-version-item__body {
  padding: 0 14px 18px;
  max-width: 680px;
}

.page-about .about-version-item__body p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--gray);
  line-height: 1.75;
}

.page-about .about-team__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

@media (min-width: 900px) {
  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: 32px;
  }
}

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

.page-about .about-team__note {
  margin-top: 8px;
  padding-left: 16px;
  border-left: 3px solid var(--deep-blue);
  font-size: 0.9rem;
  color: var(--gray);
}

.page-about .about-seal {
  display: inline-block;
  background: var(--orange);
  border: 3px solid var(--ink);
  color: var(--ink);
  padding: 12px 20px;
  transform: rotate(-2deg);
  margin: 16px 0 20px;
  text-align: center;
  box-shadow: 3px 3px 0 rgba(26, 29, 31, 0.2);
}

.page-about .about-seal__main {
  display: block;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  line-height: 1.5;
}

.page-about .about-seal__sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 4px;
}

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

.page-about .about-timeline {
  position: relative;
  margin: 8px 0 34px;
  padding-left: 28px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: linear-gradient(to bottom, var(--neon) 0 68%, var(--border) 68% 100%);
}

.page-about .about-timeline__item {
  position: relative;
  margin-bottom: 24px;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 4px;
  width: 12px;
  height: 12px;
  background: var(--paper);
  border: 3px solid var(--deep-blue);
  border-radius: 50%;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-about .about-timeline__item:hover::before,
.page-about .about-timeline__item:focus-within::before {
  background: var(--neon);
  border-color: var(--neon);
  transform: scale(1.2);
}

.page-about .about-timeline__year {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.page-about .about-timeline__year a {
  color: var(--deep-blue);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-about .about-timeline__year a:hover,
.page-about .about-timeline__year a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
  outline: none;
}

.page-about .about-timeline__card {
  background: var(--paper);
  border: 1px solid var(--border);
  box-shadow: 2px 2px 0 rgba(26, 29, 31, 0.08);
  padding: 16px 18px;
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-about .about-timeline__item:hover .about-timeline__card,
.page-about .about-timeline__item:focus-within .about-timeline__card {
  transform: translateY(-2px);
  border-color: var(--deep-blue);
  box-shadow: 4px 6px 0 rgba(11, 61, 86, 0.12);
}

.page-about .about-timeline__card h3 {
  margin: 0 0 6px;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 900;
}

.page-about .about-timeline__card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--gray);
  line-height: 1.65;
}

.page-about .about-timeline__fig {
  margin: 8px 0 0;
}

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

.page-about .img-frame--card {
  background: var(--code-bg);
  border: 1px solid var(--border);
  box-shadow: 4px 4px 0 rgba(26, 29, 31, 0.1);
}

.page-about .about-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin-top: 48px;
  padding: 28px 24px;
  background: var(--deep-blue);
  color: var(--paper);
  border-bottom: 4px solid var(--neon);
}

@media (min-width: 700px) {
  .page-about .about-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }
}

.page-about .about-cta__text h2 {
  margin: 0 0 6px;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.3rem;
}

.page-about .about-cta__text p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--footer-text);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .btn {
  display: inline-block;
  padding: 10px 18px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.85rem;
  line-height: 1.4;
  text-decoration: none;
  border: 2px solid var(--ink);
  background: transparent;
  color: var(--ink);
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-about .btn:hover,
.page-about .btn:focus-visible {
  outline: none;
  transform: translate(-1px, -1px);
}

.page-about .btn--primary {
  background: var(--ink);
  color: var(--paper);
}

.page-about .btn--primary:hover,
.page-about .btn--primary:focus-visible {
  background: var(--neon);
  border-color: var(--ink);
  color: var(--ink);
}

.page-about .btn--ghost {
  border-color: var(--deep-blue);
  color: var(--deep-blue);
}

.page-about .btn--ghost:hover,
.page-about .btn--ghost:focus-visible {
  background: var(--deep-blue);
  border-color: var(--deep-blue);
  color: var(--paper);
}

.page-about .btn--block {
  display: block;
  text-align: center;
}

.page-about .about-cta .btn--primary {
  background: var(--neon);
  border-color: var(--neon);
  color: var(--ink);
}

.page-about .about-cta .btn--primary:hover,
.page-about .about-cta .btn--primary:focus-visible {
  background: var(--paper);
  border-color: var(--paper);
  color: var(--ink);
}

.page-about .about-cta .btn--ghost {
  border-color: rgba(245, 241, 232, 0.55);
  color: var(--paper);
}

.page-about .about-cta .btn--ghost:hover,
.page-about .about-cta .btn--ghost:focus-visible {
  background: var(--paper);
  border-color: var(--paper);
  color: var(--ink);
}

.page-about .about-aside {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
}

.page-about .about-aside__card {
  background: var(--paper);
  border: 1px solid var(--border);
  box-shadow: 3px 3px 0 rgba(26, 29, 31, 0.08);
  padding: 18px 16px;
}

.page-about .about-aside__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 8px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.page-about .about-aside__index {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray);
  background: var(--tag-bg);
  padding: 2px 8px;
}

.page-about .about-aside__title {
  margin: 0 0 10px;
  font-family: var(--font-heading);
  font-size: 0.98rem;
  font-weight: 900;
}

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

.page-about .about-aside__list li {
  border-bottom: 1px solid var(--border);
}

.page-about .about-aside__list li:last-child {
  border-bottom: none;
}

.page-about .about-aside__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 2px;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.page-about .about-aside__list a:hover,
.page-about .about-aside__list a:focus-visible {
  color: var(--orange);
  padding-left: 8px;
  outline: none;
}

.page-about .about-aside__list a span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--deep-blue);
  flex: none;
}

.page-about .about-aside .legend {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 2px 0;
}

.page-about .about-aside .legend-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--gray);
}

.page-about .about-aside .legend-swatch {
  flex: none;
  width: 14px;
  height: 14px;
  display: inline-block;
  border: 1px solid rgba(26, 29, 31, 0.2);
}

.page-about .about-aside__text {
  margin: 0 0 8px;
  font-size: 0.88rem;
  color: var(--gray);
  line-height: 1.7;
}

.page-about .about-aside .btn {
  margin-top: 12px;
}

@media (max-width: 420px) {
  .page-about .container {
    width: min(1200px, 100% - 32px);
  }

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

  .page-about .about-version-item__head {
    flex-wrap: wrap;
  }

  .page-about .about-version-item__title {
    min-width: calc(100% - 80px);
  }
}