.page-about {
  --about-card-bg: rgba(22, 41, 77, 0.55);
  --about-card-bg-soft: rgba(11, 30, 58, 0.72);
}

.page-about .about-hero {
  position: relative;
  padding-top: calc(var(--header-height) + 48px);
  padding-bottom: 56px;
  overflow: hidden;
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-black) 100%);
}

.page-about .about-hero__visual {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.page-about .about-hero__shape {
  position: absolute;
  border-radius: 24px;
}

.page-about .about-hero__shape--xlarge {
  top: 8%;
  right: -26%;
  width: 68%;
  height: 72%;
  background: linear-gradient(145deg, rgba(123, 44, 191, 0.55) 0%, rgba(123, 44, 191, 0.12) 100%);
  border: 1px solid rgba(157, 78, 221, 0.3);
  transform: rotate(12deg) skewX(-8deg);
  opacity: 0.4;
}

.page-about .about-hero__shape--large {
  top: 24%;
  right: 6%;
  width: 20%;
  height: 40%;
  background: linear-gradient(145deg, rgba(255, 107, 53, 0.8) 0%, rgba(255, 107, 53, 0.18) 100%);
  transform: rotate(-15deg) skewX(-6deg);
  box-shadow: 0 0 40px rgba(255, 107, 53, 0.35);
  opacity: 0.5;
}

.page-about .about-hero__shape--mid,
.page-about .about-hero__shape--small {
  display: none;
}

.page-about .about-hero .container {
  position: relative;
  z-index: 1;
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  position: relative;
  z-index: 1;
}

.page-about .about-hero__content {
  background: linear-gradient(160deg, rgba(22, 41, 77, 0.9) 0%, rgba(10, 10, 26, 0.88) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
}

.page-about .about-hero__content .page-hero__tagline {
  display: inline-block;
  margin-bottom: 16px;
}

.page-about .about-hero__content h1 {
  font-family: var(--font-display);
  font-size: 2.1rem;
  line-height: 1.2;
  color: var(--color-white);
  margin: 0 0 18px;
  letter-spacing: -0.02em;
}

.page-about .about-hero__content h1 .text-accent {
  color: var(--color-accent);
}

.page-about .about-hero__content .page-hero__lede {
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  margin: 0 0 28px;
}

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

.page-about .breadcrumb {
  margin-bottom: 24px;
}

.page-about .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .breadcrumb a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
}

.page-about .breadcrumb a:hover {
  color: var(--color-accent-light);
}

.page-about .breadcrumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--color-border);
}

.page-about .breadcrumb [aria-current="page"] {
  color: var(--color-accent);
  font-weight: 600;
}

.page-about .about-directory {
  padding: 64px 0 72px;
  position: relative;
}

.page-about .about-directory__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.page-about .about-directory__sticky {
  display: grid;
  gap: 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  background: rgba(10, 10, 26, 0.6);
}

.page-about .about-directory__meta h2 {
  font-size: 1.15rem;
  color: var(--color-white);
  margin: 8px 0 4px;
  font-family: var(--font-display);
}

.page-about .about-directory__note {
  margin-top: 2px;
}

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

.page-about .index-list__link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-white);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease;
}

.page-about .index-list__link:hover {
  border-color: rgba(255, 107, 53, 0.6);
  background: rgba(255, 107, 53, 0.08);
  transform: translateX(4px);
}

.page-about .index-list__link .mono {
  color: var(--color-accent);
  font-size: 0.82rem;
}

.page-about .about-section {
  margin-bottom: 72px;
  scroll-margin-top: 96px;
  padding-top: 8px;
}

.page-about .section-head {
  margin-bottom: 28px;
}

.page-about .section-head .coordinate {
  display: inline-block;
  margin-bottom: 8px;
}

.page-about .about-mission__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .about-mission__text p {
  margin-bottom: 16px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  font-size: 0.95rem;
}

.page-about .about-mission__text .text-muted {
  margin-bottom: 0;
}

.page-about .about-mission__statline {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

.page-about .about-mission__stat-num {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.2;
}

.page-about .about-mission__visual {
  position: relative;
  padding: 14px;
  background-image: radial-gradient(rgba(255, 255, 255, 0.12) 1px, transparent 1px);
  background-size: 22px 22px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.page-about .about-mission__visual img {
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius);
  display: block;
}

.page-about .about-mission__card {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  padding: 12px 14px;
  background: rgba(10, 10, 26, 0.78);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text-secondary);
}

.page-about .about-timeline__wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .about-timeline__list,
.page-about .timeline {
  margin: 0;
  padding: 0;
}

.page-about .timeline {
  list-style: none;
  position: relative;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 6px;
  bottom: 16px;
  width: 2px;
  background: linear-gradient(180deg, var(--color-accent) 0%, var(--color-purple) 100%);
  opacity: 0.55;
}

.page-about .timeline__item {
  position: relative;
  margin-bottom: 14px;
}

.page-about .timeline__details {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--about-card-bg-soft);
  overflow: hidden;
  transition: border-color 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
}

.page-about .timeline__details[open] {
  border-color: rgba(255, 107, 53, 0.45);
  background: rgba(22, 41, 77, 0.65);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.25);
}

.page-about .timeline__item:last-child .timeline__details {
  border-color: rgba(255, 107, 53, 0.5);
  background: linear-gradient(180deg, rgba(255, 107, 53, 0.1), rgba(22, 41, 77, 0.6));
}

.page-about .timeline__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 16px 16px 38px;
  cursor: pointer;
  list-style: none;
  position: relative;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-white);
  transition: background 0.3s ease;
}

.page-about .timeline__summary:hover {
  background: rgba(255, 107, 53, 0.07);
}

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

.page-about .timeline__node {
  position: absolute;
  left: 7px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--color-accent);
  display: grid;
  place-items: center;
  background: var(--color-black);
  border: 1px solid rgba(255, 107, 53, 0.5);
  border-radius: 50%;
}

.page-about .timeline__node svg {
  width: 10px;
  height: 10px;
  stroke: currentColor;
}

.page-about .timeline__node--live::after {
  content: "";
  position: absolute;
  inset: -5px;
  border-radius: 50%;
  border: 2px solid rgba(255, 107, 53, 0.5);
  animation: about-pulse 2s ease-out infinite;
}

.page-about .timeline__version {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-accent);
  border: 1px solid rgba(255, 107, 53, 0.35);
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(255, 107, 53, 0.08);
  white-space: nowrap;
}

.page-about .timeline__phase {
  flex: 1;
  font-size: 0.95rem;
}

.page-about .timeline__toggle {
  font-family: var(--font-mono);
  color: var(--color-accent);
  font-size: 1.1rem;
  line-height: 1;
  transition: transform 0.3s ease;
}

.page-about .timeline__details[open] .timeline__toggle {
  transform: rotate(45deg);
}

.page-about .timeline__content {
  padding: 0 16px 18px 38px;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  border-top: 1px solid rgba(42, 59, 92, 0.5);
}

.page-about .timeline__content p {
  margin: 14px 0 0;
}

.page-about .timeline__details[open] .timeline__content {
  animation: about-fade-in 0.25s ease;
}

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

.page-about .about-timeline__visual img {
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  display: block;
}

.page-about .about-data__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.page-about .about-data__card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(22, 41, 77, 0.8), rgba(10, 10, 26, 0.9));
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.page-about .about-data__card:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 107, 53, 0.5);
  box-shadow: var(--shadow-card);
}

.page-about .about-data__label {
  color: var(--color-text-secondary);
  font-size: 0.85rem;
}

.page-about .about-data__num {
  font-family: var(--font-mono);
  font-size: 2rem;
  line-height: 1.1;
  color: var(--color-accent);
  letter-spacing: -0.02em;
}

.page-about .about-data__note {
  display: flex;
  justify-content: flex-end;
  margin-top: 18px;
}

.page-about .about-certs__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .about-cert-card {
  background: linear-gradient(180deg, rgba(22, 41, 77, 0.8), rgba(10, 10, 26, 0.9));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 26px 22px;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.page-about .about-cert-card:hover {
  transform: translateY(-3px);
  border-color: rgba(123, 44, 191, 0.65);
}

.page-about .about-cert-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 18px;
  color: var(--color-accent);
  border: 1px solid rgba(255, 107, 53, 0.35);
  border-radius: 14px;
  background: rgba(255, 107, 53, 0.08);
}

.page-about .about-cert-card__icon svg {
  width: 26px;
  height: 26px;
  stroke: currentColor;
}

.page-about .about-cert-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--color-white);
  margin: 0 0 8px;
}

.page-about .about-cert-card p {
  color: var(--color-text-secondary);
  font-size: 0.92rem;
  line-height: 1.65;
  margin: 0;
}

.page-about .about-partners__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .about-partner-card {
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: rgba(11, 30, 58, 0.72);
}

.page-about .about-partner-card h3 {
  font-size: 1.15rem;
  margin: 6px 0 12px;
  color: var(--color-white);
  font-family: var(--font-display);
}

.page-about .about-partner-card p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin: 0;
}

.page-about .about-partner-card .text-muted {
  margin-top: 12px;
}

.page-about .about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.page-about .about-tags .badge {
  margin: 0;
}

.page-about .about-partner-card--wide {
  grid-column: auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-about .about-partner-wide__media {
  margin: 0;
}

.page-about .about-partner-wide__media img {
  max-width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
  border-radius: var(--radius);
  display: block;
}

.page-about .about-directory-cta {
  margin-top: 56px;
  scroll-margin-top: 96px;
}

.page-about .about-directory-cta__inner {
  text-align: center;
  padding: 40px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.14), rgba(123, 44, 191, 0.14)), rgba(10, 10, 26, 0.8);
}

.page-about .about-directory-cta h2 {
  font-size: 1.5rem;
  color: var(--color-white);
  margin: 0 0 8px;
  font-family: var(--font-display);
}

.page-about .about-directory-cta__actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 22px;
}

@keyframes about-pulse {
  0% {
    transform: scale(0.8);
    opacity: 1;
  }
  100% {
    transform: scale(1.8);
    opacity: 0;
  }
}

@keyframes about-fade-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 768px) {
  .page-about .about-hero__shape--xlarge {
    right: -6%;
    width: 42%;
    height: 78%;
    opacity: 1;
  }

  .page-about .about-hero__shape--large {
    top: 26%;
    right: 15%;
    width: 22%;
    height: 42%;
    opacity: 1;
  }

  .page-about .about-hero__shape--mid {
    display: block;
    top: 5%;
    right: 20%;
    width: 14%;
    height: 22%;
    background: rgba(22, 41, 77, 0.88);
    border: 1px solid rgba(255, 255, 255, 0.12);
    transform: rotate(25deg);
  }

  .page-about .about-hero__shape--small {
    display: block;
    bottom: 12%;
    right: 8%;
    width: 8%;
    aspect-ratio: 1;
    border-radius: 50%;
    background: var(--color-accent);
    box-shadow: 0 0 24px rgba(255, 107, 53, 0.7);
  }

  .page-about .about-hero__content {
    padding: 36px 32px;
  }

  .page-about .about-hero__content h1 {
    font-size: 2.6rem;
  }

  .page-about .about-data__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
  }

  .page-about .about-certs__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

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

@media (min-width: 1024px) {
  .page-about .about-hero {
    padding-bottom: 72px;
  }

  .page-about .about-hero__content {
    max-width: 680px;
    padding: 40px 36px;
  }

  .page-about .about-directory {
    padding: 80px 0 96px;
  }

  .page-about .about-directory__layout {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-about .about-directory__sticky {
    position: sticky;
    top: calc(var(--header-height) + 24px);
  }

  .page-about .about-mission__grid {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
  }

  .page-about .about-timeline__wrap {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: start;
  }

  .page-about .about-timeline__visual {
    position: sticky;
    top: calc(var(--header-height) + 32px);
  }

  .page-about .about-data__num {
    font-size: 2.4rem;
  }

  .page-about .about-partners__grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .page-about .about-partner-card--wide {
    grid-column: 1 / -1;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 32px;
  }

  .page-about .about-directory-cta__inner {
    padding: 52px 40px;
  }
}