.page-about {
  --about-accent: var(--color-accent);
  --about-line: rgba(192, 192, 192, 0.24);
  --about-text-soft: var(--color-text-muted);
  --about-card-bg: linear-gradient(145deg, rgba(17, 34, 64, 0.82) 0%, rgba(10, 25, 47, 0.92) 100%);
  display: block;
}

.page-about .container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.page-about .reveal {
  opacity: 1;
  transform: none;
}

.page-about .divider-slash {
  display: block;
  width: 92px;
  height: 6px;
  margin-block: var(--space-5) var(--space-6);
  background:
    linear-gradient(90deg, var(--about-accent) 0 40%, var(--color-silver) 40% 60%, var(--color-primary) 60% 100%);
  clip-path: polygon(0 0, 100% 0, calc(100% - 12px) 100%, 12px 100%);
}

.about-hero {
  position: relative;
  padding-block: clamp(3rem, 8vw, 6rem) 2.5rem;
  border-bottom: 1px solid var(--about-line);
}

.about-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 46%;
  height: 100%;
  background:
    linear-gradient(135deg, transparent 0 42%, rgba(192, 192, 192, 0.08) 42% 43%, transparent 43%),
    repeating-linear-gradient(90deg, rgba(192, 192, 192, 0.06) 0 1px, transparent 1px 48px);
  pointer-events: none;
}

.about-hero::after {
  content: "";
  position: absolute;
  top: 12px;
  right: 8%;
  width: 72px;
  height: 72px;
  background: var(--about-accent);
  opacity: 0.18;
  clip-path: polygon(0 0, 100% 32%, 76% 100%, 0 60%);
  transform: rotate(8deg);
}

.about-hero__container {
  position: relative;
  z-index: 1;
}

.about-hero__label {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.about-hero__kicker {
  color: var(--about-accent);
  font-weight: 700;
}

.about-hero__slash {
  width: 42px;
  height: 1px;
  background: linear-gradient(90deg, var(--about-accent), transparent);
  transform: skewX(-24deg);
}

.about-hero__code {
  font-family: var(--font-numeric);
  letter-spacing: 0.08em;
}

.about-hero__title {
  font-family: var(--font-headline);
  font-size: clamp(2.4rem, 7.4vw, 5rem);
  line-height: 0.96;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  color: var(--color-headline);
  margin: 0;
  max-width: 7ch;
  position: relative;
}

.about-hero__title-mark {
  display: block;
  color: transparent;
  -webkit-text-stroke: 2px var(--about-accent);
  margin-top: var(--space-2);
}

.about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.about-hero__note {
  border-left: 3px solid var(--about-accent);
  padding-left: var(--space-5);
  max-width: 36ch;
}

.about-hero__note-label {
  font-family: var(--font-headline);
  font-size: var(--text-md);
  color: var(--color-light);
  margin: 0 0 var(--space-3);
}

.about-hero__note p:last-child {
  margin: 0;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.about-hero__meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  border-top: 1px solid var(--about-line);
  border-bottom: 1px solid var(--about-line);
  padding-block: var(--space-5);
}

.about-hero__meta-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.about-hero__meta-num {
  font-family: var(--font-numeric);
  font-size: var(--text-lg);
  color: var(--about-accent);
  line-height: 1.1;
}

.about-hero__meta-text {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.about-origin {
  padding-block: var(--space-8) var(--space-7);
}

.about-origin__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

.about-origin__note {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.about-origin__note-index,
.about-milestone__note-index,
.about-team__note-index,
.about-ecosystem__note-index,
.about-cert__note-index {
  font-family: var(--font-numeric);
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--about-accent);
}

.about-origin__note-role,
.about-milestone__note-role,
.about-team__note-role,
.about-ecosystem__note-role,
.about-cert__note-role {
  font-family: var(--font-headline);
  font-size: var(--text-md);
  letter-spacing: 0.03em;
  color: var(--color-light);
}

.about-origin__title,
.about-milestone__title,
.about-team__title,
.about-ecosystem__title,
.about-cert__title {
  font-family: var(--font-headline);
  font-size: clamp(1.8rem, 3.8vw, 2.8rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-headline);
  margin: 0;
}

.about-origin__lead,
.about-ecosystem__lead {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  line-height: 1.6;
  color: var(--color-light);
  font-weight: 500;
}

.about-origin__body p {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.8;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-4);
}

.about-origin__figure {
  margin: var(--space-6) 0 0;
  position: relative;
}

.about-origin__img,
.about-milestone__img,
.about-team__img {
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.about-origin__img {
  width: 100%;
  aspect-ratio: 4 / 3;
  filter: saturate(0.85) contrast(1.05);
}

.about-origin__figcaption,
.about-milestone__figcaption {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding-top: var(--space-3);
  border-bottom: 1px solid var(--about-line);
  padding-bottom: var(--space-3);
  letter-spacing: 0.03em;
}

.about-origin__figure::before {
  content: "";
  position: absolute;
  top: -14px;
  left: -14px;
  width: 80px;
  height: 80px;
  border-top: 2px solid var(--about-accent);
  border-left: 2px solid var(--about-accent);
  z-index: 2;
  opacity: 0.7;
}

.about-milestone {
  padding-block: var(--space-7) var(--space-8);
  background:
    linear-gradient(100deg, transparent 0%, rgba(17, 34, 64, 0.5) 52%, transparent 94%),
    repeating-linear-gradient(90deg, transparent 0 48px, rgba(192, 192, 192, 0.05) 48px 49px);
  border-top: 1px solid var(--about-line);
  border-bottom: 1px solid var(--about-line);
}

.about-milestone__head,
.about-team__head,
.about-cert__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  margin-bottom: var(--space-7);
}

.about-milestone__note,
.about-team__note {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.about-milestone__intro,
.about-team__intro,
.about-cert__intro {
  font-family: var(--font-body);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 42ch;
}

.about-timeline {
  position: relative;
  margin-bottom: var(--space-7);
}

.about-timeline__line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 12px;
  width: 3px;
  background: linear-gradient(180deg, var(--about-accent) 0%, var(--color-silver) 35%, var(--color-tertiary) 70%, rgba(192, 192, 192, 0.2) 100%);
  transform: skewX(-18deg);
  transform-origin: top center;
  opacity: 0.8;
}

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

.about-timeline__item {
  position: relative;
  padding-left: calc(var(--space-6) + 18px);
  margin-bottom: var(--space-6);
}

.about-timeline__marker {
  position: absolute;
  left: 6px;
  top: 14px;
  width: 16px;
  height: 16px;
  background: var(--color-primary);
  border: 3px solid var(--about-accent);
  border-radius: 50%;
  transform: rotate(45deg);
  box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.2);
}

.about-timeline__card {
  background: var(--about-card-bg);
  border: 1px solid var(--about-line);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  position: relative;
  transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.28s ease;
}

.about-timeline__card::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, transparent 72%, rgba(255, 107, 53, 0.18));
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
}

.about-timeline__card:hover {
  transform: translateX(6px);
  border-color: rgba(255, 107, 53, 0.5);
}

.about-timeline__year {
  display: inline-block;
  font-family: var(--font-numeric);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--about-accent);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-3);
  position: relative;
}

.about-timeline__year::after {
  content: "";
  display: block;
  width: 38px;
  height: 3px;
  background: var(--about-accent);
  margin-top: var(--space-2);
  transform: skewX(-24deg);
}

.about-timeline__card h3 {
  font-family: var(--font-headline);
  font-size: var(--text-md);
  color: var(--color-light);
  margin: 0 0 var(--space-2);
}

.about-timeline__card p {
  font-family: var(--font-body);
  color: var(--color-text-muted);
  line-height: 1.7;
  font-size: var(--text-base);
  margin: 0 0 var(--space-3);
}

.about-timeline__tag {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--about-accent);
  background: rgba(255, 107, 53, 0.1);
  border: 1px solid rgba(255, 107, 53, 0.3);
  padding: 4px 10px;
  border-radius: 999px;
}

.about-milestone__chart {
  margin: var(--space-6) 0 0;
  background: rgba(17, 34, 64, 0.5);
  border: 1px solid var(--about-line);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}

.about-milestone__img {
  width: 100%;
  aspect-ratio: 12 / 5;
  filter: contrast(1.05);
}

.about-milestone__figcaption {
  border-bottom: none;
  padding-top: var(--space-3);
}

.about-stats {
  padding-block: var(--space-7);
}

.about-stats__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.about-stats__item {
  background: rgba(17, 34, 64, 0.7);
  border-left: 3px solid var(--about-accent);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  position: relative;
  overflow: hidden;
}

.about-stats__item::after {
  content: "";
  position: absolute;
  right: -20px;
  top: -20px;
  width: 68px;
  height: 68px;
  border: 2px solid rgba(192, 192, 192, 0.2);
  border-radius: 50%;
  pointer-events: none;
}

.about-stats__num {
  font-family: var(--font-numeric);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800;
  color: var(--about-accent);
  line-height: 1.1;
  letter-spacing: 0.02em;
}

.about-stats__label {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  letter-spacing: 0.03em;
}

.about-team {
  padding-block: var(--space-8) var(--space-7);
}

.about-team__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.about-team__figure {
  margin: 0;
  position: relative;
}

.about-team__img {
  width: 100%;
  aspect-ratio: 8 / 5;
  filter: saturate(0.8) contrast(1.1) brightness(0.95);
}

.about-team__caption {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding-block: var(--space-3);
  border-bottom: 1px solid var(--about-line);
}

.about-team__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.about-team__item {
  display: flex;
  gap: var(--space-4);
  background: rgba(17, 34, 64, 0.45);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  border: 1px solid var(--about-line);
  transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1), background 0.28s ease;
}

.about-team__item:hover {
  transform: translateY(-3px);
  background: rgba(29, 62, 94, 0.5);
}

.about-team__dir {
  font-family: var(--font-numeric);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--about-accent);
  line-height: 1;
  min-width: 1ch;
}

.about-team__item h3 {
  font-family: var(--font-headline);
  font-size: var(--text-md);
  color: var(--color-light);
  margin: 0 0 var(--space-2);
}

.about-team__item p {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text-muted);
  margin: 0;
}

.about-ecosystem {
  padding-block: var(--space-7) var(--space-8);
  border-top: 1px solid var(--about-line);
  border-bottom: 1px solid var(--about-line);
  background:
    linear-gradient(180deg, rgba(17, 34, 64, 0.35) 0%, transparent 100%);
}

.about-ecosystem__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.about-ecosystem__note {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.about-ecosystem__cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  margin-top: var(--space-6);
}

.about-ecosystem__col {
  background: rgba(17, 34, 64, 0.75);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  border: 1px solid var(--about-line);
  position: relative;
  overflow: hidden;
}

.about-ecosystem__col::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--about-accent), var(--color-silver));
  opacity: 0.7;
}

.about-ecosystem__col h3 {
  font-family: var(--font-headline);
  font-size: var(--text-md);
  color: var(--color-light);
  margin: 0 0 var(--space-2);
}

.about-ecosystem__col p {
  font-family: var(--font-body);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin: 0;
}

.about-ecosystem__status {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  border: 1px dashed var(--about-line);
  padding: var(--space-4);
  border-radius: var(--radius-md);
}

.about-ecosystem__status-dot {
  width: 10px;
  height: 10px;
  background: var(--about-accent);
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(255, 107, 53, 0.6);
  animation: aboutPulse 2s ease-in-out infinite;
}

@keyframes aboutPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

.about-cert {
  padding-block: var(--space-8) var(--space-7);
}

.about-cert__head {
  margin-bottom: var(--space-6);
}

.about-cert__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

.about-cert__card {
  background: var(--about-card-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  border: 1px solid var(--about-line);
  position: relative;
  overflow: hidden;
  transition: border-color 0.28s ease, box-shadow 0.28s ease;
}

.about-cert__card:hover {
  border-color: rgba(255, 107, 53, 0.4);
  box-shadow: 0 8px 36px rgba(0, 0, 0, 0.28);
}

.about-cert__card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 110px;
  height: 110px;
  background: radial-gradient(circle at 100% 0%, rgba(255, 107, 53, 0.15), transparent 70%);
}

.about-cert__card-index {
  font-family: var(--font-numeric);
  font-size: 2rem;
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 1px var(--about-accent);
  display: block;
  margin-bottom: var(--space-4);
}

.about-cert__card h3 {
  font-family: var(--font-headline);
  font-size: var(--text-md);
  color: var(--color-light);
  margin: 0 0 var(--space-3);
  line-height: 1.3;
}

.about-cert__card p {
  font-family: var(--font-body);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin: 0 0 var(--space-4);
}

.about-cert__card-tag {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-silver);
  border: 1px solid rgba(192, 192, 192, 0.3);
  padding: 4px 12px;
  border-radius: 2px;
  text-transform: uppercase;
}

.about-cert__note-text {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  border-left: 3px solid var(--color-silver);
  padding-left: var(--space-4);
  margin-top: var(--space-6);
  max-width: 52ch;
}

.about-callout {
  padding-block: var(--space-7) var(--space-8);
  position: relative;
}

.about-callout::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 34%;
  height: 100%;
  background: linear-gradient(215deg, rgba(255, 107, 53, 0.16), transparent 75%);
  clip-path: polygon(32% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.about-callout__inner {
  position: relative;
  z-index: 1;
}

.about-callout__label {
  font-family: var(--font-headline);
  font-size: var(--text-lg);
  color: var(--color-light);
  margin: 0 0 var(--space-5);
}

.about-callout__links {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.about-callout__link {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  text-decoration: none;
  padding: var(--space-4) var(--space-5);
  background: rgba(17, 34, 64, 0.6);
  border: 1px solid var(--about-line);
  border-radius: var(--radius-md);
  transition: border-color 0.24s ease, transform 0.24s cubic-bezier(0.22, 1, 0.36, 1), background 0.24s ease;
}

.about-callout__link:hover,
.about-callout__link:focus-visible {
  border-color: rgba(255, 107, 53, 0.55);
  background: rgba(29, 62, 94, 0.7);
  transform: translateX(6px);
  outline: none;
}

.about-callout__link-index {
  font-family: var(--font-numeric);
  font-size: var(--text-sm);
  color: var(--about-accent);
  font-weight: 700;
}

.about-callout__link-text {
  font-family: var(--font-headline);
  font-size: var(--text-md);
  color: var(--color-light);
  flex: 1;
}

.about-callout__link-arrow {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  color: var(--about-accent);
}

@media (min-width: 768px) {
  .page-about .container {
    padding-inline: var(--container-pad);
  }

  .about-hero__grid {
    grid-template-columns: minmax(240px, 0.8fr) 2fr;
    align-items: end;
  }

  .about-hero__meta {
    grid-row: auto;
  }

  .about-origin__grid {
    grid-template-columns: minmax(180px, 0.6fr) 3fr;
    gap: var(--space-7);
  }

  .about-origin__note {
    justify-content: flex-start;
    align-items: flex-start;
    flex-direction: column;
    gap: var(--space-3);
    padding-top: var(--space-2);
  }

  .about-milestone__head,
  .about-team__head,
  .about-cert__head {
    grid-template-columns: minmax(180px, 0.6fr) 2fr minmax(240px, 1fr);
    align-items: end;
    gap: var(--space-6);
  }

  .about-milestone__intro,
  .about-team__intro,
  .about-cert__intro {
    margin: 0;
    grid-column: 2;
    margin-top: var(--space-4);
    max-width: 42ch;
    padding-top: var(--space-3);
    border-top: 1px solid var(--about-line);
  }

  .about-timeline__line {
    left: 22px;
  }

  .about-timeline__item {
    padding-left: calc(var(--space-7) + 24px);
  }

  .about-timeline__marker {
    left: 15px;
  }

  .about-timeline__card {
    max-width: 560px;
  }

  .about-stats__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .about-stats__item {
    padding: var(--space-6);
  }

  .about-team__grid {
    grid-template-columns: minmax(280px, 0.85fr) 1.4fr;
    align-items: center;
    gap: var(--space-7);
  }

  .about-team__figure {
    margin: 0;
  }

  .about-ecosystem__grid {
    grid-template-columns: minmax(180px, 0.6fr) 3fr;
    gap: var(--space-7);
  }

  .about-ecosystem__note {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    padding-top: var(--space-2);
  }

  .about-ecosystem__cols {
    grid-template-columns: 1fr 1fr;
  }

  .about-cert__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
  }

  .about-cert__card {
    padding: var(--space-6);
  }

  .about-callout__links {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .page-about .container {
    padding-inline: clamp(2rem, 4vw, 2.5rem);
  }

  .about-hero {
    padding-block: clamp(3rem, 6vw, 5rem) 2.5rem;
  }

  .about-hero__title {
    max-width: 8ch;
  }

  .about-hero__grid {
    grid-template-columns: minmax(260px, 1fr) minmax(360px, 1.6fr);
  }

  .about-origin__grid {
    grid-template-columns: minmax(200px, 0.6fr) 3fr;
  }

  .about-timeline__card {
    max-width: 620px;
  }

  .about-timeline__card:hover {
    transform: translateX(8px);
  }
}