.page-about {
  --about-rule: rgba(158, 172, 189, 0.18);
  --about-text: #D9D0BE;
  padding-top: var(--header-h);
  background: var(--ink);
  color: var(--paper);
  overflow-wrap: break-word;
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  position: relative;
  padding: 42px 0 0;
  isolation: isolate;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 560px;
  background:
    radial-gradient(ellipse 62% 68% at 88% 0%, rgba(240, 166, 58, 0.16), transparent 70%),
    radial-gradient(ellipse 48% 62% at 4% 12%, rgba(53, 224, 194, 0.08), transparent 72%);
  pointer-events: none;
  z-index: -1;
}

.page-about .about-hero__inner {
  display: grid;
  gap: 34px;
  align-items: start;
}

.page-about .about-hero__kicker {
  margin: 20px 0 0;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--teal);
}

.page-about .about-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 5vw, 54px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-about .about-hero__lead {
  margin: 20px 0 0;
  max-width: 36em;
  font-size: clamp(15px, 1.3vw, 16.5px);
  line-height: 1.85;
  color: var(--about-text);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .about-hero__visual {
  position: relative;
  padding-bottom: 26px;
}

.page-about .about-hero__figure {
  position: relative;
  margin: 0;
  aspect-ratio: 14 / 9;
  background: var(--panel);
  border: 1px solid rgba(158, 172, 189, 0.28);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
  overflow: hidden;
}

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

.page-about .about-hero__stamp {
  position: absolute;
  left: 0;
  bottom: 0;
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 12px 20px 12px 16px;
  background: var(--charcoal);
  border-left: 3px solid var(--amber);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}

.page-about .about-hero__stamp-key {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-about .about-hero__stamp-val {
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ---------- Facts band ---------- */
.page-about .about-facts {
  list-style: none;
  margin: 40px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--about-rule);
  border: 1px solid var(--about-rule);
}

.page-about .about-facts__item {
  display: grid;
  gap: 8px;
  padding: 18px 16px;
  background: var(--ink);
}

.page-about .about-facts__num {
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--amber);
}

.page-about .about-facts__label {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--mist);
}

/* ---------- Body layout ---------- */
.page-about .about-body {
  margin-top: 56px;
  padding: 48px 0 80px;
  background: linear-gradient(180deg, rgba(17, 29, 47, 0.62), rgba(10, 21, 38, 0.96));
  border-top: 1px solid var(--about-rule);
}

.page-about .about-body__grid {
  display: grid;
  gap: 36px;
}

.page-about .about-aside__label {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--mist);
}

.page-about .about-aside__list {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: none;
  list-style: none;
  margin: 0;
}

.page-about .about-aside__list::-webkit-scrollbar {
  display: none;
}

.page-about .about-aside__list > li {
  flex: 0 0 auto;
}

.page-about .about-aside__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 8px 14px;
  border: 1px solid var(--about-rule);
  background: var(--panel);
  font-size: 13px;
  line-height: 1.2;
  color: var(--mist);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-aside__list a.is-active {
  color: var(--ink);
  background: var(--amber);
  border-color: var(--amber);
}

.page-about .about-aside__list .index-list__num {
  font-size: 11px;
  color: var(--teal);
}

.page-about .about-aside__list a.is-active .index-list__num {
  color: var(--ink);
}

.page-about .about-aside__top {
  display: none;
  margin-top: 20px;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--mist);
  text-decoration: none;
}

.page-about .about-aside__top:hover {
  color: var(--amber);
}

/* ---------- Blocks ---------- */
.page-about .about-block {
  padding-bottom: 46px;
  margin-bottom: 46px;
  border-bottom: 1px solid var(--line-soft);
}

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

.page-about .about-block__head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
}

.page-about .about-block__num {
  flex: 0 0 auto;
  padding: 4px 10px;
  border: 1px solid rgba(53, 224, 194, 0.35);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--teal);
}

.page-about .about-block__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 2.6vw, 30px);
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-about .about-block p {
  margin: 0 0 15px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--about-text);
}

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

.page-about .about-note {
  margin: 22px 0 0;
  padding: 20px 22px;
  color: var(--brown);
  border-left: 3px solid var(--amber-ink);
}

.page-about .about-note p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--brown);
}

.page-about .about-note strong {
  color: var(--amber-ink);
}

/* ---------- Timeline ---------- */
.page-about .about-timeline {
  position: relative;
  list-style: none;
  margin: 26px 0 0;
  padding: 4px 0 0 26px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--amber) 0%, rgba(53, 224, 194, 0.6) 50%, rgba(53, 224, 194, 0.05) 100%);
}

.page-about .about-timeline__item {
  position: relative;
  padding-bottom: 20px;
}

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

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 16px;
  width: 12px;
  height: 12px;
  background: var(--ink);
  border: 2px solid var(--amber);
  transform: rotate(45deg);
}

.page-about .about-timeline__card {
  padding: 16px 18px;
  background: var(--panel);
  border: 1px solid var(--about-rule);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}

.page-about .about-timeline__year {
  display: inline-block;
  margin-bottom: 7px;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-about .about-timeline__title {
  margin: 0 0 7px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-about .about-timeline__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- Team ---------- */
.page-about .about-team {
  display: grid;
  gap: 24px;
  align-items: start;
}

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

.page-about .about-team__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--about-rule);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.page-about .about-team__caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- Scale ---------- */
.page-about .about-scale {
  display: grid;
  gap: 14px;
  margin: 22px 0;
}

.page-about .about-scale__cell {
  padding: 18px 20px;
  background: linear-gradient(140deg, rgba(53, 224, 194, 0.10), rgba(17, 29, 47, 0.94) 62%);
  border: 1px solid rgba(53, 224, 194, 0.22);
  border-left: 2px solid var(--teal);
}

.page-about .about-scale__num {
  display: block;
  font-size: clamp(26px, 3vw, 34px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--teal);
}

.page-about .about-scale__unit {
  display: block;
  margin: 2px 0 10px;
  font-size: 13px;
  color: var(--mist);
}

.page-about .about-scale__cell p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--about-text);
}

.page-about .about-scale__note {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--about-text);
}

/* ---------- Credentials ---------- */
.page-about .about-cred {
  display: grid;
  gap: 26px;
  margin-top: 6px;
  align-items: center;
}

.page-about .about-cred__list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-cred__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 12px 16px;
  background: var(--charcoal);
  border-left: 2px solid var(--amber);
}

.page-about .about-cred__key {
  flex: 0 0 auto;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-about .about-cred__val {
  flex: 1 1 12em;
  font-size: 14px;
  line-height: 1.65;
  color: var(--about-text);
}

.page-about .about-cred__contact {
  padding: 16px 18px;
  border: 1px solid var(--about-rule);
  background: rgba(17, 29, 47, 0.6);
}

.page-about .about-cred__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--about-text);
}

.page-about .about-cred__row-label {
  flex: 0 0 auto;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-about .about-cred__row a {
  color: var(--paper);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(240, 166, 58, 0.5);
}

.page-about .about-cred__row a:hover {
  color: var(--amber);
}

.page-about .about-cred__row-val {
  flex: 1 1 12em;
}

.page-about .about-cred__tip {
  margin: 4px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

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

.page-about .about-cred__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  border: 1px solid rgba(240, 166, 58, 0.24);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

/* ---------- Folds ---------- */
.page-about .about-folds {
  margin: 20px 0 0;
  background: var(--panel);
  border: 1px solid var(--about-rule);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
}

.page-about .about-fold + .about-fold {
  border-top: 1px solid var(--about-rule);
}

.page-about .about-fold > summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
  transition: background-color var(--dur) var(--ease);
}

.page-about .about-fold > summary::-webkit-details-marker {
  display: none;
}

.page-about .about-fold > summary::marker {
  content: "";
}

.page-about .about-fold > summary:hover {
  background: rgba(240, 166, 58, 0.07);
}

.page-about .about-fold > summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--amber);
}

.page-about .about-fold[open] > summary::after {
  content: "−";
}

.page-about .about-fold__num {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--teal);
}

.page-about .about-fold__body {
  padding: 0 18px 18px;
}

.page-about .about-fold__body p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--about-text);
}

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

/* ---------- CTA ---------- */
.page-about .about-cta {
  margin: 30px 0 0;
  padding: 22px 22px 24px;
  background: linear-gradient(120deg, rgba(240, 166, 58, 0.14), rgba(17, 29, 47, 0.9) 68%);
  border: 1px solid rgba(240, 166, 58, 0.28);
  border-left: 3px solid var(--amber);
}

.page-about .about-cta__text {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-related {
  margin: 22px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .about-related a {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(240, 166, 58, 0.4);
}

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

/* ---------- Responsive ---------- */
@media (min-width: 640px) {
  .page-about .about-facts {
    margin-top: 48px;
  }

  .page-about .about-cta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 24px 26px;
  }

  .page-about .about-cta__text {
    flex: 1 1 20em;
    margin: 0;
  }
}

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

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

@media (min-width: 900px) {
  .page-about .about-hero {
    padding-top: 56px;
  }

  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    gap: clamp(32px, 4vw, 62px);
    align-items: end;
  }

  .page-about .about-hero__visual {
    margin-top: 34px;
  }

  .page-about .about-cred {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.78fr);
    gap: 32px;
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.9fr);
    gap: 32px;
  }
}

@media (min-width: 1000px) {
  .page-about .about-body {
    margin-top: 72px;
    padding: 64px 0 96px;
  }

  .page-about .about-body__grid {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: clamp(40px, 5vw, 72px);
    align-items: start;
  }

  .page-about .about-aside {
    position: sticky;
    top: calc(var(--header-h) + 32px);
    align-self: start;
  }

  .page-about .about-aside__list {
    display: grid;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
    border-left: 1px solid var(--about-rule);
  }

  .page-about .about-aside__list > li {
    flex: 1 1 auto;
  }

  .page-about .about-aside__list a {
    display: flex;
    padding: 10px 12px 10px 14px;
    border: 0;
    background: transparent;
    font-size: 13.5px;
    color: var(--mist);
    border-left: 2px solid transparent;
    margin-left: -1px;
    transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
  }

  .page-about .about-aside__list a:hover {
    color: var(--paper);
    background: rgba(158, 172, 189, 0.06);
  }

  .page-about .about-aside__list a.is-active {
    color: var(--paper);
    background: rgba(240, 166, 58, 0.10);
    border-left-color: var(--amber);
  }

  .page-about .about-aside__list a.is-active .index-list__num {
    color: var(--amber);
  }

  .page-about .about-aside__top {
    display: inline-block;
  }

  .page-about .about-block {
    padding-bottom: 56px;
    margin-bottom: 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-aside__list a,
  .page-about .about-fold > summary {
    transition: none;
  }
}