.page-about {
  --about-panel: #102A23;
  --about-soft: rgba(35, 88, 74, 0.5);
  --about-glow: rgba(198, 245, 60, 0.16);
  --about-hover: #14312A;
  display: block;
  background: var(--ink);
  color: var(--paper);
  padding-bottom: clamp(56px, 8vw, 108px);
  overflow-x: clip;
}

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

.page-about .figure__img {
  display: block;
  overflow: hidden;
  background: var(--ink-2);
}

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

.page-about .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.09em;
  color: var(--lime);
  margin: 0 0 10px;
}

.page-about .section-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 1.15rem + 2vw, 2.625rem);
  line-height: 1.14;
  letter-spacing: -0.012em;
  margin: 0;
  color: var(--paper);
}

.about-crumb {
  padding-top: clamp(18px, 2.6vw, 30px);
}

.about-open {
  padding-top: clamp(20px, 3.4vw, 44px);
}

.about-open__grid {
  display: grid;
  gap: clamp(32px, 4.5vw, 48px);
}

.about-open__pitch h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.875rem, 1.2rem + 3.2vw, 3.75rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin: 0 0 20px;
  color: var(--paper);
}

.about-open__lead {
  font-family: var(--font-editorial);
  font-size: clamp(1.125rem, 1.02rem + 0.62vw, 1.5rem);
  line-height: 1.64;
  margin: 0 0 16px;
  color: var(--paper);
}

.about-open__p {
  margin: 0;
  max-width: 60ch;
  color: var(--muted);
  font-size: var(--fs-body);
  line-height: 1.82;
}

.about-open__marks {
  list-style: none;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--about-soft);
  border: 1px solid var(--about-soft);
}

.about-open__mark {
  background: var(--ink-2);
  padding: 14px 14px 16px;
}

.about-open__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.125rem, 1rem + 0.6vw, 1.5rem);
  color: var(--lime);
  line-height: 1.2;
}

.about-open__mark span:last-child {
  display: block;
  margin-top: 6px;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--muted);
}

.about-open__spine {
  border: 1px solid var(--line);
  background: linear-gradient(168deg, #16362C 0%, #0E241E 82%);
  padding: clamp(20px, 3vw, 30px);
}

.about-open__spine-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin: 0 0 clamp(18px, 2.6vw, 24px);
}

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

.about-timeline__item {
  position: relative;
  padding: 0 0 clamp(18px, 2.4vw, 26px) 24px;
  border-left: 1px solid var(--line);
  transition: border-color var(--dur) var(--ease);
}

.about-timeline__item:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.about-timeline__item::before {
  content: "";
  position: absolute;
  left: -4.5px;
  top: 5px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--line);
  transition: background var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

.about-timeline__item:hover {
  border-left-color: var(--lime-deep);
}

.about-timeline__item:hover::before {
  background: var(--lime);
  box-shadow: 0 0 0 4px var(--about-glow);
  transform: scale(1.15);
}

.about-timeline__v {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--lime);
}

.about-timeline__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.0625rem;
  line-height: 1.35;
  margin: 4px 0 0;
  color: var(--paper);
}

.about-timeline__note {
  margin: 6px 0 0;
  font-size: 0.875rem;
  line-height: 1.72;
  color: var(--muted);
}

.about-audience-block,
.about-evolve,
.about-team,
.about-rules,
.about-next {
  margin-top: clamp(48px, 7vw, 96px);
}

.about-sec-head {
  max-width: 62ch;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.about-sec-note {
  margin: 12px 0 0;
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--muted);
}

.about-audience {
  display: grid;
  gap: 1px;
  background: var(--about-soft);
  border: 1px solid var(--about-soft);
}

.about-audience__card {
  background: var(--ink-2);
  padding: clamp(20px, 2.6vw, 30px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: background var(--dur) var(--ease);
}

.about-audience__card:hover {
  background: var(--about-hover);
}

.about-audience__no {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  background: var(--lime);
  color: var(--ink);
}

.about-audience__card:nth-child(2) .about-audience__no {
  background: var(--indigo);
  color: var(--paper);
}

.about-audience__card:nth-child(3) .about-audience__no {
  background: var(--wine);
  color: var(--paper);
}

.about-audience__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.0625rem;
  line-height: 1.4;
  margin: 0;
  color: var(--paper);
}

.about-audience__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--muted);
}

.about-audience__do {
  margin: auto 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
  color: var(--lime-deep);
}

.about-evolve__fig {
  margin-bottom: clamp(24px, 3.6vw, 40px);
}

.about-evolve__cap {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.about-trade {
  display: grid;
  gap: clamp(18px, 2.4vw, 26px);
}

.about-trade__item {
  border-top: 2px solid var(--line);
  padding-top: 16px;
  transition: border-color var(--dur) var(--ease);
}

.about-trade__item:hover {
  border-top-color: var(--lime);
}

.about-trade__k {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--lime);
  margin-bottom: 8px;
}

.about-trade__t {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1rem;
  line-height: 1.45;
  margin: 0 0 8px;
  color: var(--paper);
}

.about-trade__d {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--muted);
}

.about-team__fig {
  margin-bottom: clamp(24px, 3.4vw, 40px);
}

.about-team__lede {
  font-family: var(--font-editorial);
  font-size: clamp(1.0625rem, 1rem + 0.42vw, 1.25rem);
  line-height: 1.72;
  margin: 0 0 18px;
  max-width: 44em;
  color: var(--paper);
}

.about-team__text {
  margin: 0 0 16px;
  max-width: 68ch;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--muted);
}

.about-inline-link {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.about-inline-link:hover {
  color: var(--lime-deep);
  border-bottom-color: var(--lime-deep);
}

.about-bars {
  list-style: none;
  margin: clamp(26px, 3.6vw, 42px) 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
  max-width: 760px;
}

.about-bars__row {
  display: grid;
  gap: 8px;
}

.about-bars__label strong {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--paper);
}

.about-bars__label span {
  display: block;
  margin-top: 2px;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--muted);
}

.about-bars__track {
  display: block;
  height: 14px;
  background: var(--glass);
  border: 1px solid var(--line);
}

.about-bars__fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--lime-deep), var(--lime));
  transition: filter var(--dur) var(--ease);
}

.about-bars__row:nth-child(1) .about-bars__fill {
  width: 39.1%;
}

.about-bars__row:nth-child(2) .about-bars__fill {
  width: 19.6%;
}

.about-bars__row:nth-child(3) .about-bars__fill {
  width: 26.1%;
}

.about-bars__row:nth-child(4) .about-bars__fill {
  width: 15.2%;
}

.about-bars__row:hover .about-bars__fill {
  filter: brightness(1.15);
}

.about-bars__num {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--lime);
}

.about-reach__grid {
  display: grid;
  gap: clamp(28px, 4vw, 44px);
}

.about-reach__stats {
  display: grid;
  gap: 1px;
  margin: 24px 0;
  padding: 0;
  background: var(--about-soft);
  border: 1px solid var(--about-soft);
}

.about-reach__stat {
  background: var(--ink-2);
  padding: 16px;
  transition: background var(--dur) var(--ease);
}

.about-reach__stat:hover {
  background: var(--about-hover);
}

.about-reach__stat dt {
  font-family: var(--font-mono);
  font-size: clamp(1.0625rem, 1rem + 0.4vw, 1.25rem);
  color: var(--lime);
  line-height: 1.2;
}

.about-reach__stat dd {
  margin: 6px 0 0;
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--muted);
}

.about-rules__grid {
  display: grid;
  gap: clamp(12px, 1.6vw, 18px);
}

.about-rule {
  border: 1px solid var(--line);
  background: var(--ink-2);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.about-rule:hover {
  border-color: var(--lime-deep);
  background: var(--about-hover);
}

.about-rule[open] {
  border-color: var(--lime);
}

.about-rule summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 18px 40px 18px 16px;
}

.about-rule summary::-webkit-details-marker {
  display: none;
}

.about-rule summary::after {
  content: "+";
  position: absolute;
  right: 14px;
  top: 15px;
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1;
  color: var(--lime);
}

.about-rule[open] summary::after {
  content: "–";
}

.about-rule__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--lime);
}

.about-rule__t {
  display: block;
  margin-top: 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--paper);
}

.about-rule__d {
  margin: 0;
  padding: 0 16px 18px;
  font-size: 0.875rem;
  line-height: 1.78;
  color: var(--muted);
}

.about-next__grid {
  display: grid;
  gap: 1px;
  background: var(--about-soft);
  border: 1px solid var(--about-soft);
}

.about-next__card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--ink-2);
  padding: clamp(22px, 3vw, 32px);
  text-decoration: none;
  color: inherit;
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.about-next__card:hover {
  background: var(--about-hover);
  box-shadow: inset 0 0 0 1px var(--lime);
}

.about-next__k {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.about-next__t {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.0625rem;
  line-height: 1.42;
  color: var(--paper);
}

.about-next__d {
  font-size: 0.875rem;
  line-height: 1.72;
  color: var(--muted);
}

.about-next__go {
  margin-top: auto;
  padding-top: 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--lime);
}

@media (min-width: 560px) {
  .about-open__marks {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 720px) {
  .about-bars__row {
    grid-template-columns: 168px minmax(0, 1fr) 64px;
    align-items: center;
    gap: 14px;
  }

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

@media (min-width: 820px) {
  .about-audience {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 860px) {
  .about-trade {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .about-reach__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
    gap: clamp(32px, 4vw, 56px);
  }
}

@media (min-width: 960px) {
  .about-open__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    gap: clamp(40px, 4.6vw, 84px);
    align-items: start;
  }

  .about-open__spine {
    position: relative;
  }

  .about-timeline__note {
    max-height: 0;
    margin-top: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 200ms var(--ease), opacity 160ms var(--ease),
      margin-top 160ms var(--ease);
  }

  .about-timeline__item:hover .about-timeline__note,
  .about-timeline__item:focus-within .about-timeline__note {
    max-height: 170px;
    margin-top: 6px;
    opacity: 1;
  }
}

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