.page-about {
  background: var(--ink);
  color: var(--white);
  overflow-x: clip;
}

.page-about .about-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(18px, 4vw, 36px) 0 0;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: min(640px, 92vw);
  background:
    radial-gradient(55% 60% at 16% 0%, rgba(49, 230, 255, 0.18), transparent 72%),
    radial-gradient(52% 58% at 88% 6%, rgba(36, 21, 63, 0.95), transparent 70%);
  z-index: -1;
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(135deg, rgba(43, 54, 72, 0.4) 0 1px, transparent 1px 26px);
  opacity: 0.55;
  z-index: -1;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to bottom, #000, transparent 68%);
  mask-image: linear-gradient(to bottom, #000, transparent 68%);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  align-items: end;
}

.page-about .about-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.95rem, 6.2vw, 4.05rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.page-about .about-hero__lede {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 52ch;
  color: var(--muted);
  font-size: clamp(0.96rem, 1.6vw, 1.08rem);
  line-height: 1.78;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(18px, 3vw, 26px);
}

.page-about .about-hero__figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
}

.page-about .about-hero__figure .media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-about .about-hero__cap {
  position: absolute;
  left: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  background: rgba(7, 9, 15, 0.82);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.page-about .about-hero__cap .mono {
  color: var(--yellow);
}

.page-about .about-stats {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-stats__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: clamp(14px, 2.4vw, 22px) clamp(12px, 2vw, 18px);
  background: linear-gradient(160deg, var(--panel), var(--ink));
}

.page-about .about-stats__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.4rem, 3.4vw, 2rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--yellow);
}

.page-about .about-stats__label {
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-about .about-block {
  position: relative;
  padding: clamp(40px, 7vw, 84px) 0;
  border-top: 1px solid var(--line);
}

.page-about .about-block .section__head {
  max-width: 64ch;
}

.page-about .about-block .section__title {
  position: relative;
  padding-left: 16px;
  line-height: 1.1;
  letter-spacing: -0.015em;
}

.page-about .about-block .section__title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.16em;
  bottom: 0.16em;
  width: 4px;
  background: linear-gradient(var(--yellow), var(--cyan));
  transform: skewY(-8deg);
}

.page-about .about-text {
  margin-top: clamp(18px, 3vw, 26px);
}

.page-about .about-text p {
  margin: 0 0 14px;
  color: var(--muted);
  line-height: 1.82;
}

.page-about .about-text p:last-child {
  margin-bottom: 0;
}

.page-about .about-space__body {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(22px, 4vw, 34px);
}

.page-about .spec-list {
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .spec-list__cell {
  padding: 13px 15px;
  background: var(--panel);
}

.page-about .spec-list dt {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-about .spec-list dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.02rem;
  color: var(--cyan);
}

.page-about .about-map {
  margin: 0;
  padding: clamp(10px, 2vw, 18px);
  border: 1px solid var(--line);
  background:
    radial-gradient(120% 100% at 50% 0%, rgba(49, 230, 255, 0.1), transparent 60%),
    var(--panel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-about .about-map__svg {
  display: block;
  width: 100%;
  height: auto;
  max-height: 460px;
}

.page-about .about-map figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.page-about .about-map__frame rect {
  fill: none;
  stroke: var(--line);
  stroke-width: 2;
}

.page-about .about-map__grid line {
  stroke: var(--line);
  stroke-width: 1;
  opacity: 0.45;
}

.page-about .about-map__shape {
  fill: rgba(49, 230, 255, 0.1);
  stroke: var(--cyan);
  stroke-width: 1.5;
}

.page-about .about-map__shape--screen {
  fill: rgba(242, 255, 58, 0.14);
  stroke: var(--yellow);
}

.page-about .about-map__shape--orange {
  fill: rgba(255, 122, 24, 0.14);
  stroke: var(--orange);
}

.page-about .about-map__label {
  fill: var(--white);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.page-about .about-map__seat {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 1;
  stroke-dasharray: 6 6;
  opacity: 0.5;
}

.page-about .about-map__hit {
  fill: transparent;
}

.page-about .about-map__pin {
  outline: none;
  cursor: help;
}

.page-about .about-map__pin:hover .about-map__shape,
.page-about .about-map__pin:focus .about-map__shape {
  fill: rgba(49, 230, 255, 0.26);
}

.page-about .about-map__tip {
  opacity: 0;
  transition: opacity 0.18s ease;
  pointer-events: none;
}

.page-about .about-map__tip rect {
  fill: var(--violet);
  stroke: var(--cyan);
  stroke-width: 1;
}

.page-about .about-map__tip text {
  fill: var(--white);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
}

.page-about .about-map__pin:hover .about-map__tip,
.page-about .about-map__pin:focus .about-map__tip {
  opacity: 1;
}

.page-about .about-wall {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  margin-top: clamp(22px, 4vw, 34px);
}

.page-about .about-wall__fig {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 22px 100%, 0 calc(100% - 22px));
}

.page-about .about-wall__fig .media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-about .about-wall__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-wall__list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0 18px;
  background: var(--ink);
}

.page-about .about-wall__num {
  color: var(--cyan);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  padding-top: 2px;
}

.page-about .about-wall__list h3 {
  margin: 0 0 6px;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.4;
}

.page-about .about-wall__list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.75;
}

.page-about .about-wall__note {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.78;
}

.page-about a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(49, 230, 255, 0.35);
}

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

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

.page-about .about-library {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  margin-top: clamp(22px, 4vw, 34px);
}

.page-about .about-library__methods {
  display: grid;
  gap: 12px;
  margin-top: clamp(18px, 3vw, 26px);
}

.page-about .about-method {
  padding: 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  background: var(--panel);
}

.page-about .about-method:nth-child(2) {
  border-left-color: var(--yellow);
}

.page-about .about-method:nth-child(3) {
  border-left-color: var(--orange);
}

.page-about .about-method__fmt {
  margin: 0;
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-about .about-method h3 {
  margin: 8px 0 6px;
  font-size: 1rem;
  color: var(--white);
}

.page-about .about-method p:last-child {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-library__link {
  margin: 18px 0 0;
  font-size: 0.92rem;
  color: var(--muted);
  line-height: 1.8;
}

.page-about .about-library__fig {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.page-about .about-library__fig .media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-about .about-season {
  position: relative;
  overflow: hidden;
  padding: clamp(40px, 6vw, 76px) 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(115deg, rgba(36, 21, 63, 0.95), var(--ink) 62%);
}

.page-about .about-season .section__head {
  max-width: 64ch;
}

.page-about .about-season .section__title {
  position: relative;
  padding-left: 16px;
  line-height: 1.1;
  letter-spacing: -0.015em;
}

.page-about .about-season .section__title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.16em;
  bottom: 0.16em;
  width: 4px;
  background: linear-gradient(var(--yellow), var(--cyan));
  transform: skewY(-8deg);
}

.page-about .about-season__figures {
  list-style: none;
  margin: clamp(22px, 4vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-season__cell {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(14px, 2.4vw, 20px);
  background: rgba(7, 9, 15, 0.74);
}

.page-about .about-season__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.35rem, 3vw, 1.8rem);
  font-weight: 700;
  line-height: 1;
  color: var(--white);
}

.page-about .about-season__cap {
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--muted);
}

.page-about .about-season__note {
  margin: clamp(18px, 3vw, 24px) 0 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-about .about-timeline {
  list-style: none;
  margin: clamp(22px, 4vw, 34px) 0 0;
  padding: 0;
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(var(--yellow), var(--cyan) 55%, var(--line));
}

.page-about .about-timeline__node {
  position: relative;
}

.page-about .about-timeline__summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 12px 0 12px 36px;
  position: relative;
  cursor: pointer;
  list-style: none;
}

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

.page-about .about-timeline__summary::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 17px;
  width: 12px;
  height: 12px;
  background: var(--ink);
  border: 2px solid var(--cyan);
  transform: rotate(45deg);
}

.page-about .about-timeline__node details[open] .about-timeline__summary::before {
  background: var(--yellow);
  border-color: var(--yellow);
}

.page-about .about-timeline__summary:hover .about-timeline__title {
  color: var(--yellow);
}

.page-about .about-timeline__code {
  min-width: 58px;
  color: var(--yellow);
  font-size: 0.92rem;
  letter-spacing: 0.06em;
}

.page-about .about-timeline__title {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--white);
  transition: color 0.18s ease;
}

.page-about .about-timeline__body {
  padding: 0 0 14px 36px;
}

.page-about .about-timeline__body p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.78;
}

.page-about .about-partner__grid {
  display: grid;
  gap: 14px;
  margin-top: clamp(22px, 4vw, 34px);
}

.page-about .about-partner__card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, var(--panel), var(--ink));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  transition: background 0.2s ease, transform 0.2s ease;
}

.page-about .about-partner__card:hover {
  background: linear-gradient(160deg, var(--hover), var(--ink));
  transform: translateY(-2px);
}

.page-about .about-partner__num {
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-about .about-partner__card h3 {
  margin: 0;
  font-size: 1.05rem;
  color: var(--white);
  line-height: 1.4;
}

.page-about .about-partner__card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--muted);
}

.page-about .about-partner__go {
  margin-top: auto;
  padding-top: 8px;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-about .about-cta {
  margin-top: clamp(30px, 5vw, 54px);
  padding: clamp(22px, 4vw, 38px);
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
  border: 1px solid var(--line);
  background:
    linear-gradient(120deg, rgba(49, 230, 255, 0.14), transparent 55%),
    linear-gradient(300deg, rgba(242, 255, 58, 0.12), transparent 55%),
    var(--panel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

.page-about .about-cta h2 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.6vw, 1.85rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-about .about-cta p {
  margin: 0;
  max-width: 46ch;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--muted);
}

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

@media (max-width: 1199px) {
  .page-about .chapter-rail {
    display: none;
  }
}

@media (min-width: 720px) {
  .page-about .about-library__methods {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-partner__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-season__figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-about .about-hero__figure {
    transform: translateY(6px);
  }

  .page-about .about-space__body {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr);
    align-items: start;
  }

  .page-about .about-wall {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    align-items: center;
  }

  .page-about .about-library {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: start;
  }

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

  .page-about .about-timeline__summary {
    padding-left: 44px;
  }

  .page-about .about-timeline__body {
    padding-left: 44px;
    max-width: 70ch;
  }
}

@media (min-width: 1080px) {
  .page-about .about-partner__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-map__tip,
  .page-about .about-partner__card,
  .page-about .about-timeline__title {
    transition: none;
  }

  .page-about .about-partner__card:hover {
    transform: none;
  }
}