.page-about {
  --ab-rule: rgba(43, 91, 71, 0.42);
  --ab-rule-soft: rgba(43, 91, 71, 0.20);
  background: var(--ink);
  color: var(--chalk);
  overflow-x: hidden;
}

.page-about .about-hero {
  position: relative;
  padding-block: clamp(1.25rem, 4vw, 2.25rem) clamp(2rem, 5vw, 3.5rem);
  border-bottom: 1px solid var(--ab-rule-soft);
  background-image:
    repeating-linear-gradient(90deg, var(--ab-rule-soft) 0 1px, transparent 1px 80px),
    repeating-linear-gradient(0deg, var(--ab-rule-soft) 0 1px, transparent 1px 80px),
    radial-gradient(90% 70% at 88% 0%, rgba(201, 255, 59, 0.12), transparent 62%);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

.page-about .about-hero__title {
  margin: 0.6rem 0 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.3rem, 8.5vw, 6rem);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--chalk);
}

.page-about .about-hero__title-line {
  display: block;
  color: var(--lime);
}

.page-about .about-hero__lede {
  max-width: 54ch;
  margin: 1.25rem 0 0;
  font-size: clamp(0.98rem, 1.8vw, 1.12rem);
  line-height: 1.85;
  color: var(--mist);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.page-about .about-ticket {
  position: relative;
  padding: 1.15rem 1.2rem 1.35rem;
  background: linear-gradient(160deg, var(--panel), var(--moss));
  border: 1px solid var(--line-soft);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-about .about-ticket__head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--ab-rule);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-about .about-ticket__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.1rem 1rem;
  margin-top: 1.1rem;
}

.page-about .about-ticket__cell {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-width: 0;
}

.page-about .about-ticket__num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3.2vw, 2rem);
  line-height: 1;
  color: var(--lime);
}

.page-about .about-ticket__unit {
  font-size: 0.6em;
  margin-left: 0.15em;
  color: var(--mint);
}

.page-about .about-ticket__label {
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--mist);
}

.page-about .about-body {
  padding-block: clamp(1.25rem, 3vw, 2rem) clamp(3rem, 7vw, 5rem);
}

.page-about .about-layout {
  display: grid;
  gap: clamp(1.25rem, 4vw, 3rem);
}

.page-about .about-toc {
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--ab-rule-soft);
}

.page-about .about-toc__label {
  margin: 0 0 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-about .about-toc__list {
  display: flex;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-about .about-toc__link {
  display: block;
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--line-faint);
  border-left: 2px solid transparent;
  font-size: 0.82rem;
  line-height: 1.4;
  white-space: nowrap;
  color: var(--mist);
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .about-toc__link:hover,
.page-about .about-toc__link:focus-visible,
.page-about .about-toc__link[aria-current] {
  color: var(--lime);
  border-color: var(--line-soft);
  border-left-color: var(--lime);
}

.page-about .about-section {
  padding-block: clamp(2rem, 5vw, 3.5rem);
  border-top: 1px solid var(--ab-rule-soft);
}

.page-about .about-section:first-child {
  padding-top: clamp(0.5rem, 2vw, 1rem);
  border-top: 0;
}

.page-about .about-section__title {
  margin: 0.5rem 0 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.7rem, 4.8vw, 3.1rem);
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-about .about-section__lede {
  max-width: 62ch;
  margin: 1rem 0 0;
  font-size: clamp(1rem, 1.6vw, 1.1rem);
  line-height: 1.85;
  color: var(--chalk);
}

.page-about .about-copy p {
  max-width: 64ch;
  margin: 1rem 0 0;
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .about-split {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  margin-top: 1.4rem;
}

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

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

.page-about .about-figure__cap {
  margin: 0.7rem 0 0;
  padding-left: 0.75rem;
  border-left: 2px solid var(--line);
  font-size: 0.8rem;
  line-height: 1.65;
  color: var(--mist);
}

.page-about .about-figure--tall,
.page-about .about-figure--wide {
  margin-top: clamp(1.5rem, 4vw, 2.25rem);
}

.page-about .about-list {
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
}

.page-about .about-list__item {
  display: grid;
  grid-template-columns: 2.3rem minmax(0, 1fr);
  gap: 0.3rem 0.9rem;
  padding: 1.05rem 0;
  border-bottom: 1px solid var(--ab-rule-soft);
}

.page-about .about-list__idx {
  grid-column: 1;
  grid-row: 1;
  padding-top: 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-about .about-list__name {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  color: var(--chalk);
}

.page-about .about-list__desc {
  grid-column: 2;
  grid-row: 2;
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-about .about-roles {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

.page-about .about-role {
  padding: 1.1rem 1.15rem 1.25rem;
  background: var(--panel);
  border: 1px solid var(--ab-rule);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-about .about-role__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.75rem;
  line-height: 1;
  color: var(--lime);
}

.page-about .about-role__name {
  margin: 0.55rem 0 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.02rem;
  letter-spacing: 0.1em;
  color: var(--chalk);
}

.page-about .about-role__desc {
  margin: 0.5rem 0 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-about .about-timeline {
  margin: 1.75rem 0 0;
  padding: 0 0 0 1.5rem;
  list-style: none;
  border-left: 1px solid var(--line-soft);
}

.page-about .about-timeline__item {
  position: relative;
  padding-bottom: 1.5rem;
}

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

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -1.5rem;
  top: 0.5rem;
  width: 9px;
  height: 9px;
  background: var(--moss);
  border: 1px solid var(--line);
  transform: translateX(-50%) rotate(45deg);
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease);
}

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

.page-about .about-timeline__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem 0.8rem;
}

.page-about .about-timeline__year {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  color: var(--lime);
}

.page-about .about-timeline__tag {
  padding: 0.1rem 0.4rem;
  border: 1px solid var(--line-faint);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-about .about-timeline__note {
  max-width: 60ch;
  margin: 0.4rem 0 0;
  padding-left: 0.65rem;
  border-left: 2px solid transparent;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--mist);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-about .about-timeline__item:hover .about-timeline__note {
  color: var(--chalk);
  border-left-color: var(--orange);
}

.page-about .about-principles {
  display: grid;
  gap: 1px;
  margin-top: 1.5rem;
  background: var(--ab-rule-soft);
  border: 1px solid var(--ab-rule-soft);
}

.page-about .about-principle {
  padding: 1.1rem 1.15rem 1.2rem;
  background: var(--ink);
}

.page-about .about-principle__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--orange);
}

.page-about .about-principle__title {
  margin: 0.35rem 0 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  color: var(--chalk);
}

.page-about .about-principle__desc {
  margin: 0.45rem 0 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-about .about-cta {
  margin-top: clamp(2rem, 5vw, 3rem);
  padding: clamp(1.4rem, 4vw, 2.4rem);
  background: linear-gradient(135deg, var(--moss), var(--panel) 72%);
  border: 1px solid var(--line-soft);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-about .about-cta__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.5rem, 4vw, 2.35rem);
  line-height: 1.1;
  color: var(--chalk);
}

.page-about .about-cta__text {
  max-width: 60ch;
  margin: 0.85rem 0 0;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  margin-top: 1.4rem;
}

.page-about .about-cta__link {
  font-size: 0.88rem;
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 0.15rem;
}

.page-about .about-cta__link:hover,
.page-about .about-cta__link:focus-visible {
  border-bottom-color: var(--lime);
}

@media (min-width: 720px) {
  .page-about .about-list__item {
    grid-template-columns: 3rem minmax(0, 9.5rem) minmax(0, 1fr);
    align-items: baseline;
  }

  .page-about .about-list__idx,
  .page-about .about-list__name,
  .page-about .about-list__desc {
    grid-column: auto;
    grid-row: auto;
  }

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

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

@media (min-width: 860px) {
  .page-about .about-split {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-about .about-figure--tall {
    max-width: 620px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }
}

@media (min-width: 1024px) {
  .page-about .about-layout {
    grid-template-columns: 210px minmax(0, 1fr);
    align-items: start;
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-about .about-toc {
    position: sticky;
    top: 104px;
    padding-bottom: 0;
    border-bottom: 0;
  }

  .page-about .about-toc__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    border-left: 1px solid var(--ab-rule-soft);
  }

  .page-about .about-toc__link {
    padding: 0.45rem 0 0.45rem 0.85rem;
    border: 0;
    border-left: 2px solid transparent;
    white-space: normal;
    line-height: 1.5;
  }

  .page-about .about-toc__link[aria-current] {
    background: linear-gradient(90deg, rgba(201, 255, 59, 0.12), transparent);
  }

  .page-about .about-figure--wide {
    margin-top: 2.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-toc__link,
  .page-about .about-timeline__item::before,
  .page-about .about-timeline__note {
    transition: none;
  }
}