.page-about {
  --about-slant: 12px;
  background:
    radial-gradient(1100px 720px at 88% -8%, rgba(123, 104, 238, 0.20), transparent 62%),
    radial-gradient(760px 520px at 4% 24%, rgba(0, 255, 156, 0.07), transparent 58%),
    var(--color-bg);
}

.page-about img {
  max-width: 100%;
  height: auto;
}

.page-about-hero {
  position: relative;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-12) var(--space-6) var(--space-16);
  overflow: hidden;
}

.page-about-hero::after {
  content: "";
  position: absolute;
  top: var(--space-16);
  right: 10%;
  width: 260px;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-purple));
  transform: rotate(18deg);
  opacity: 0.55;
}

.page-about-eyebrow {
  margin: 0 0 var(--space-4);
  font-family: var(--font-data);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.page-about-hero h1 {
  margin: 0 0 var(--space-6);
  font-family: var(--font-heading);
  font-size: clamp(2.75rem, 7vw, 5rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 0.98;
}

.page-about-hero h1 span {
  display: block;
  margin-top: var(--space-3);
  color: var(--color-text-dim);
  font-size: clamp(1.35rem, 3vw, 2.3rem);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-about-lead {
  max-width: 760px;
  margin: 0 0 var(--space-12);
  padding-left: var(--space-6);
  border-left: 4px solid var(--color-accent-2);
  color: var(--color-text-dim);
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  line-height: 1.85;
}

.page-about-hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  margin: 0;
  padding: 0;
  border: 1px solid var(--color-border);
  background: rgba(18, 26, 58, 0.55);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
}

.page-about-hero-stat {
  padding: var(--space-6);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.page-about-hero-stat:nth-child(2n) {
  border-right: none;
}

.page-about-hero-stat:nth-last-child(-n+2) {
  border-bottom: none;
}

.page-about-hero-stat dt {
  margin: 0;
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-dim);
}

.page-about-hero-stat dd {
  margin: var(--space-2) 0 0;
  font-family: var(--font-data);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-accent);
}

.page-about-layout {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6) var(--space-24);
}

.page-about-index {
  margin: 0 0 var(--space-12);
}

.page-about-index-nav {
  padding: var(--space-6);
  background: var(--color-card);
  border: 1px solid var(--color-border);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}

.page-about-index-title {
  margin: 0 0 var(--space-4);
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.page-about-index-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: about-index;
}

.page-about-index-list li {
  counter-increment: about-index;
}

.page-about-index-list a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border);
  color: var(--color-text-dim);
  font-size: 0.9rem;
  text-decoration: none;
  transition: border-color 0.2s, color 0.2s, transform 0.2s;
}

.page-about-index-list a::before {
  content: "0" counter(about-index);
  font-family: var(--font-data);
  font-size: 0.8rem;
  color: var(--color-accent-2);
}

.page-about-index-list a:hover,
.page-about-index-list a:focus-visible {
  border-color: var(--color-accent);
  color: var(--color-text);
  transform: translateX(4px);
}

.page-about-content {
  min-width: 0;
}

.page-about-section {
  margin-bottom: var(--space-24);
  scroll-margin-top: calc(var(--header-h) + var(--space-6));
}

.page-about-section:target {
  animation: page-about-flash 1.4s ease;
}

@keyframes page-about-flash {
  0% {
    box-shadow: inset 0 0 0 2px var(--color-accent);
  }
  100% {
    box-shadow: inset 0 0 0 0 transparent;
  }
}

.page-about-section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-6);
  margin-bottom: var(--space-12);
  padding-bottom: var(--space-4);
  border-bottom: 2px solid var(--color-border);
}

.page-about-section-head .section-eyebrow {
  margin: 0 0 var(--space-1);
}

.page-about-section-head .section-eyebrow span {
  color: var(--color-accent);
  font-weight: 700;
}

.page-about-section-head h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.6vw, 2.8rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.page-about-mission-grid {
  display: grid;
  gap: var(--space-12);
}

.page-about-mission-copy > p {
  margin: 0 0 var(--space-6);
  color: var(--color-text-dim);
  line-height: 1.85;
}

.page-about-mission-points {
  display: grid;
  gap: var(--space-4);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about-mission-points li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-6);
  background: var(--color-card);
  border-left: 3px solid var(--color-accent);
}

.page-about-point-num {
  font-family: var(--font-data);
  font-size: 0.85rem;
  line-height: 1.4;
  color: var(--color-accent-2);
}

.page-about-mission-points li p {
  margin: 0;
  color: var(--color-text-dim);
  font-size: 0.95rem;
  line-height: 1.65;
}

.page-about-mission-points strong {
  display: block;
  margin-bottom: var(--space-1);
  color: var(--color-text);
  font-weight: 800;
}

.page-about-mission-media {
  margin: 0;
}

.page-about-mission-media img {
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(1.05);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

.page-about-mission-media figcaption {
  margin-top: var(--space-3);
  color: var(--color-text-dim);
  font-size: 0.85rem;
}

.page-about-timeline-wrap {
  display: grid;
  gap: var(--space-12);
  align-items: start;
}

.page-about-timeline {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 2px solid var(--color-border);
}

.page-about-timeline-item {
  position: relative;
  padding: 0 0 var(--space-8) var(--space-8);
}

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

.page-about-timeline-item::before {
  content: "";
  position: absolute;
  top: 8px;
  left: -6px;
  width: 10px;
  height: 10px;
  background: var(--color-bg);
  border: 3px solid var(--color-accent);
  border-radius: 2px;
  transform: rotate(45deg);
  transition: background-color 0.2s, transform 0.2s;
}

.page-about-timeline-year {
  font-family: var(--font-data);
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-accent);
}

.page-about-timeline-body h3 {
  margin: var(--space-2) 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-text);
}

.page-about-timeline-desc {
  margin: 0;
  color: var(--color-text-dim);
  font-size: 0.95rem;
  line-height: 1.7;
}

.page-about-timeline-note {
  display: inline-block;
  margin: var(--space-3) 0 0;
  font-family: var(--font-data);
  font-size: 0.8rem;
  color: var(--color-accent);
}

.page-about-timeline-media {
  margin: 0;
}

.page-about-timeline-media img {
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.92);
}

.page-about-cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-6);
}

.page-about-cert-card {
  position: relative;
  height: 200px;
  perspective: 1200px;
}

.page-about-cert-front,
.page-about-cert-back {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  background:
    linear-gradient(135deg, rgba(0, 255, 156, 0.05), transparent 60%),
    var(--color-card);
  text-align: center;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transition: transform 0.6s ease;
}

.page-about-cert-front h3 {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--color-text);
}

.page-about-cert-front p {
  margin: 0;
  color: var(--color-text-dim);
  font-size: 0.9rem;
  line-height: 1.6;
}

.page-about-cert-back {
  border-color: rgba(0, 255, 156, 0.5);
  background: linear-gradient(135deg, var(--color-card-hover), var(--color-card));
  transform: rotateY(180deg);
}

.page-about-cert-back p {
  margin: 0;
  color: var(--color-text-dim);
  font-size: 0.92rem;
  line-height: 1.7;
}

.page-about-cert-media {
  margin: var(--space-12) 0 0;
}

.page-about-cert-media img {
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-about-team-layout {
  display: grid;
  gap: var(--space-12);
}

.page-about-team-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin: 0;
}

.page-about-team-stat {
  padding: var(--space-6);
  background: var(--color-card);
  border: 1px solid var(--color-border);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
}

.page-about-team-stat dt {
  margin-bottom: var(--space-2);
  color: var(--color-text-dim);
  font-size: 0.82rem;
}

.page-about-team-stat dd {
  margin: 0;
  font-family: var(--font-data);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
}

.page-about-team-stat dd .data-value {
  color: var(--color-accent);
}

.page-about-team-copy p {
  margin: 0 0 var(--space-6);
  color: var(--color-text-dim);
  line-height: 1.9;
}

.page-about-fold {
  margin-top: var(--space-8);
  border: 1px solid var(--color-border);
  background: var(--color-card);
}

.page-about-fold summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-6);
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-text);
}

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

.page-about-fold summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-data);
  font-size: 1.3rem;
  line-height: 1;
  color: var(--color-accent);
}

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

.page-about-fold-content {
  padding: 0 var(--space-6) var(--space-6);
  color: var(--color-text-dim);
  font-size: 0.95rem;
  line-height: 1.8;
}

.page-about-fold-content ul {
  margin: 0;
  padding-left: var(--space-6);
}

.page-about-fold-content li + li {
  margin-top: var(--space-2);
}

.page-about-internal {
  margin-top: var(--space-16);
  padding: var(--space-8);
  background: linear-gradient(135deg, rgba(0, 255, 156, 0.08), rgba(123, 104, 238, 0.06));
  border: 1px solid var(--color-border);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-about-internal h3 {
  margin: 0 0 var(--space-6);
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 800;
}

.page-about-internal-grid {
  display: grid;
  gap: var(--space-4);
}

.page-about-internal-grid .btn {
  width: 100%;
}

.page-about a:focus-visible,
.page-about summary:focus-visible,
.page-about .page-about-cert-card:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

@media (max-width: 991px) {
  .page-about-cert-card {
    height: auto;
    perspective: none;
  }

  .page-about-cert-front,
  .page-about-cert-back {
    position: static;
    transform: none;
    backface-visibility: visible;
    -webkit-backface-visibility: visible;
    border-left: 3px solid var(--color-accent);
  }

  .page-about-cert-front {
    margin-bottom: var(--space-2);
  }
}

@media (min-width: 992px) {
  .page-about-hero {
    padding: var(--space-24) var(--space-6);
  }

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

  .page-about-hero-stat:nth-child(n) {
    padding-left: var(--space-8);
    border-right: 1px solid var(--color-border);
    border-bottom: none;
  }

  .page-about-hero-stat:last-child {
    border-right: none;
  }

  .page-about-layout {
    display: grid;
    grid-template-columns: minmax(0, 240px) minmax(0, 1fr);
    gap: var(--space-16);
    align-items: start;
  }

  .page-about-index {
    position: sticky;
    top: calc(var(--header-h) + var(--space-8));
    margin: 0;
  }

  .page-about-index-list {
    display: grid;
    gap: var(--space-2);
  }

  .page-about-index-list a {
    justify-content: space-between;
    padding: var(--space-3) 0;
    border: none;
    border-left: 2px solid var(--color-border);
    border-radius: 0;
  }

  .page-about-index-list a:hover,
  .page-about-index-list a:focus-visible {
    border-left-color: var(--color-accent);
    transform: translateX(4px);
  }

  .page-about-mission-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
  }

  .page-about-mission-media {
    order: 2;
  }

  .page-about-timeline-wrap {
    grid-template-columns: minmax(0, 1fr) minmax(0, 420px);
    gap: var(--space-16);
  }

  .page-about-timeline-note {
    color: var(--color-bg);
    background: var(--color-accent);
    padding: 2px 10px;
    font-weight: 700;
    letter-spacing: 0.05em;
    clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 100%, 0 100%);
    opacity: 0;
    transform: translateX(-6px);
    transition: opacity 0.25s ease, transform 0.25s ease;
  }

  .page-about-timeline-item:hover .page-about-timeline-note {
    opacity: 1;
    transform: none;
  }

  .page-about-timeline-item:hover::before {
    background: var(--color-accent);
    transform: rotate(0deg);
  }

  .page-about-cert-card:hover .page-about-cert-front,
  .page-about-cert-card:focus-within .page-about-cert-front {
    transform: rotateY(180deg);
  }

  .page-about-cert-card:hover .page-about-cert-back,
  .page-about-cert-card:focus-within .page-about-cert-back {
    transform: rotateY(0deg);
  }

  .page-about-team-layout {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
  }

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

@media (max-width: 600px) {
  .page-about-hero::after {
    display: none;
  }

  .page-about-section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }

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