.page-about {
  --about-primary: #1B3B6F;
  --about-primary-light: #2F5CA3;
  --about-highlight: #39FF14;
  --about-warning: #FF4D00;
  --about-bg: #0B0E14;
  --about-panel: #131A26;
  --about-muted: #9BA3B4;
  --about-line: #2A3441;
  --about-white: #FFFFFF;
  --about-font-mono: "Roboto Mono", "Courier New", monospace;
  position: relative;
  background-color: var(--about-bg);
  background-image:
    radial-gradient(circle, rgba(155, 163, 180, 0.07) 1px, transparent 1px),
    linear-gradient(135deg, rgba(27, 59, 111, 0.25) 0%, transparent 40%);
  background-size: 26px 26px, 100% 100%;
  color: var(--about-white);
  overflow-x: hidden;
}

.page-about .breadcrumb {
  padding-top: 28px;
  padding-bottom: 0;
  font-family: var(--about-font-mono);
  font-size: 14px;
  color: var(--about-muted);
}

.page-about .breadcrumb a {
  color: var(--about-muted);
  text-decoration: none;
  transition: color 0.25s ease-out;
}

.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible {
  color: var(--about-primary-light);
}

.page-about .breadcrumb [aria-current="page"] {
  color: var(--about-white);
}

.page-about .breadcrumb .sep {
  margin: 0 8px;
  color: var(--about-line);
}

.page-about .about-hero {
  padding-top: 40px;
  padding-bottom: 24px;
}

.page-about .about-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-about .about-hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--about-font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--about-highlight);
}

.page-about .about-hero-kicker::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--about-highlight);
  flex-shrink: 0;
}

.page-about .about-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-headline);
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--about-white);
}

.page-about .about-hero-sub {
  max-width: 680px;
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--about-muted);
}

.page-about .about-hero-index {
  border-left: 3px solid var(--about-primary);
  padding: 16px 0 16px 20px;
  background: linear-gradient(90deg, rgba(27, 59, 111, 0.18) 0%, transparent 60%);
}

.page-about .about-hero-index-title {
  margin: 0 0 12px;
  font-family: var(--about-font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--about-primary-light);
}

.page-about .about-hero-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-about .about-hero-index-list a {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-size: 15px;
  color: var(--about-white);
  text-decoration: none;
  transition: color 0.25s ease-out;
}

.page-about .about-hero-index-list a span {
  font-family: var(--about-font-mono);
  font-size: 14px;
  color: var(--about-highlight);
}

.page-about .about-hero-index-list a:hover,
.page-about .about-hero-index-list a:focus-visible {
  color: var(--about-primary-light);
}

.page-about .about-hero-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 40px 0 0;
  padding: 0;
}

.page-about .about-hero-metric {
  min-width: 0;
  padding: 20px 16px;
  background: linear-gradient(135deg, #131A26 0%, #1B3B6F 100%);
  border-left: 3px solid var(--about-primary-light);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-about .about-hero-metric dt {
  font-family: var(--about-font-mono);
  font-size: 28px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--about-white);
}

.page-about .about-hero-metric dd {
  margin: 8px 0 0;
  font-size: 13px;
  color: var(--about-muted);
}

.page-about .chapter-index {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.page-about .chapter-index-num {
  font-family: var(--about-font-mono);
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 700;
  line-height: 1;
  color: var(--about-primary-light);
}

.page-about .chapter-index-bar {
  width: 72px;
  height: 4px;
  background: linear-gradient(90deg, var(--about-primary-light), var(--about-highlight));
  flex-shrink: 0;
}

.page-about .chapter-index-title {
  margin: 0;
  font-family: var(--font-headline);
  font-size: clamp(22px, 3vw, 30px);
  color: var(--about-white);
}

.page-about .about-who {
  padding-top: 48px;
}

.page-about .about-who-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-about .about-who-copy {
  display: grid;
  gap: 20px;
}

.page-about .about-who-panel {
  padding: 28px 24px;
  background: var(--about-panel);
  border-top: 4px solid var(--about-primary);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

.page-about .about-who-lead {
  margin: 0 0 16px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--about-white);
}

.page-about .about-who-panel p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--about-muted);
}

.page-about .about-who-panel p:last-child {
  margin-bottom: 0;
}

.page-about .about-who-scene {
  padding: 24px 20px;
  background: var(--about-panel);
  border-left: 4px solid var(--about-highlight);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}

.page-about .about-who-scene-title {
  margin: 0 0 16px;
  font-family: var(--font-headline);
  font-size: 18px;
  color: var(--about-white);
}

.page-about .about-who-scene-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-about .about-who-scene-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: start;
}

.page-about .scene-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 64px;
  padding: 4px 8px;
  font-family: var(--about-font-mono);
  font-size: 12px;
  text-align: center;
  white-space: nowrap;
}

.page-about .scene-tag-primary {
  background: var(--about-primary);
  color: var(--about-white);
  border: 1px solid var(--about-primary-light);
}

.page-about .scene-tag-line {
  background: transparent;
  border: 1px solid var(--about-primary-light);
  color: var(--about-muted);
}

.page-about .scene-tag-muted {
  background: var(--about-line);
  color: var(--about-muted);
}

.page-about .scene-tag-warning {
  background: var(--about-warning);
  color: var(--about-white);
}

.page-about .about-who-scene-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--about-muted);
}

.page-about .about-timeline {
  padding-top: 48px;
  padding-bottom: 24px;
}

.page-about .about-timeline-intro {
  max-width: 720px;
  margin: 0 0 24px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--about-muted);
}

.page-about .about-timeline-cover {
  margin: 0 0 40px;
  border: 1px solid var(--about-line);
  background: var(--about-panel);
}

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

.page-about .about-timeline-cover figcaption {
  padding: 10px 12px 12px;
  font-family: var(--about-font-mono);
  font-size: 12px;
  color: var(--about-muted);
}

.page-about .about-timeline-track {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 40px;
}

.page-about .about-timeline-track::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 0;
  bottom: 0;
  width: 4px;
  border-radius: 4px;
  background: linear-gradient(180deg, #1B3B6F 0%, #2F5CA3 50%, #39FF14 100%);
}

.page-about .about-timeline-item {
  position: relative;
  margin-bottom: 28px;
}

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

.page-about .about-timeline-item::before {
  content: "";
  position: absolute;
  left: -35px;
  top: 28px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--about-primary-light);
  border: 3px solid var(--about-bg);
  box-shadow: 0 0 0 3px var(--about-primary);
  transition: background 0.3s ease-out, box-shadow 0.3s ease-out;
}

.page-about .about-timeline-item:hover::before,
.page-about .about-timeline-item:focus-within::before {
  background: var(--about-highlight);
  box-shadow: 0 0 0 3px var(--about-highlight);
}

.page-about .about-timeline-card {
  padding: 20px 20px 16px;
  background: var(--about-panel);
  border: 1px solid var(--about-line);
  border-left: 3px solid var(--about-primary);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  transition: transform 0.25s ease-out, border-color 0.25s ease-out;
}

.page-about .about-timeline-item:hover .about-timeline-card,
.page-about .about-timeline-item:focus-within .about-timeline-card {
  transform: translateX(4px);
  border-left-color: var(--about-highlight);
}

.page-about .about-timeline-year {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--about-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--about-highlight);
}

.page-about .about-timeline-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  color: var(--about-white);
}

.page-about .about-timeline-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--about-muted);
}

.page-about .about-tech {
  position: relative;
  padding-top: 48px;
  padding-bottom: 24px;
}

.page-about .about-tech-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-about .about-tech-lead {
  margin: 0 0 24px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--about-muted);
}

.page-about .about-tech-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .about-tech-list li {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  align-items: start;
  padding: 18px 16px;
  background: linear-gradient(90deg, rgba(27, 59, 111, 0.16) 0%, transparent 70%);
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-tech-num {
  font-family: var(--about-font-mono);
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  color: var(--about-primary-light);
}

.page-about .about-tech-list h3 {
  margin: 0 0 6px;
  font-size: 15px;
  color: var(--about-white);
}

.page-about .about-tech-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--about-muted);
}

.page-about .about-tech-figure {
  margin: 0;
  padding: 12px;
  background: var(--about-panel);
  border: 1px solid var(--about-line);
}

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

.page-about .about-tech-figure figcaption {
  padding: 10px 4px 2px;
  font-family: var(--about-font-mono);
  font-size: 12px;
  color: var(--about-muted);
}

.page-about .about-cred {
  padding-top: 48px;
  padding-bottom: 48px;
}

.page-about .about-cred-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-about .about-cred-certs {
  display: grid;
  gap: 16px;
}

.page-about .about-cred-card {
  padding: 24px 20px;
  background: linear-gradient(135deg, #131A26 0%, #16213A 100%);
  border-top: 3px solid var(--about-primary-light);
  clip-path: polygon(0 16px, 16px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
  transition: transform 0.25s ease-out, border-color 0.25s ease-out;
}

.page-about .about-cred-card:hover,
.page-about .about-cred-card:focus-within {
  transform: translateY(-4px);
  border-top-color: var(--about-highlight);
}

.page-about .about-cred-badge {
  display: inline-block;
  margin-bottom: 12px;
  padding: 4px 10px;
  font-family: var(--about-font-mono);
  font-size: 12px;
  color: var(--about-white);
  background: var(--about-primary);
  border: 1px solid var(--about-primary-light);
}

.page-about .about-cred-card h3 {
  margin: 0 0 8px;
  font-size: 16px;
  color: var(--about-white);
}

.page-about .about-cred-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--about-muted);
}

.page-about .about-cred-figure {
  margin: 0;
  background: var(--about-panel);
  border: 1px solid var(--about-line);
}

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

.page-about .about-cred-figure figcaption {
  padding: 10px 12px;
  font-family: var(--about-font-mono);
  font-size: 12px;
  color: var(--about-muted);
}

.page-about .about-cred-partners {
  padding: 24px 20px;
  background: var(--about-panel);
  border-right: 4px solid var(--about-primary-light);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}

.page-about .about-cred-partners-title {
  margin: 0 0 16px;
  font-family: var(--font-headline);
  font-size: 18px;
  color: var(--about-white);
}

.page-about .about-cred-partners-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-cred-partners-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--about-muted);
}

.page-about .about-cred-partners-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--about-highlight);
  transform: rotate(45deg);
}

.page-about .about-strip {
  padding-top: 24px;
  padding-bottom: 72px;
}

.page-about .about-strip-panel {
  position: relative;
  padding: 36px 24px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(27, 59, 111, 0.35) 0%, transparent 55%),
    var(--about-panel);
  border: 1px solid var(--about-line);
  clip-path: polygon(0 0, calc(100% - 32px) 0, 100% 32px, 100% 100%, 0 100%);
}

.page-about .about-strip-panel::after {
  content: "";
  position: absolute;
  right: -40px;
  top: -40px;
  width: 160px;
  height: 160px;
  background: radial-gradient(circle, rgba(57, 255, 20, 0.16) 0%, transparent 70%);
  pointer-events: none;
}

.page-about .about-strip-copy h2 {
  margin: 0 0 8px;
  font-family: var(--font-headline);
  font-size: clamp(20px, 3vw, 28px);
  color: var(--about-white);
}

.page-about .about-strip-copy p {
  margin: 0 0 24px;
  font-size: 15px;
  color: var(--about-muted);
}

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

@media (min-width: 900px) {
  .page-about .about-hero {
    padding-top: 56px;
    padding-bottom: 32px;
  }

  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 1.8fr) minmax(0, 1fr);
    gap: 56px;
    align-items: center;
  }

  .page-about .about-hero-metrics {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 56px;
  }

  .page-about .about-hero-metric {
    padding: 28px 20px;
  }

  .page-about .about-hero-metric dt {
    font-size: 36px;
  }

  .page-about .about-who-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-about .about-who-scene {
    padding: 28px 24px;
  }

  .page-about .about-timeline-track {
    padding-left: 0;
    padding-top: 8px;
  }

  .page-about .about-timeline-track::before {
    left: 50%;
    right: auto;
    top: 0;
    bottom: 0;
    transform: translateX(-50%);
  }

  .page-about .about-timeline-item {
    width: calc(50% - 56px);
    margin-left: 0;
    margin-bottom: 48px;
  }

  .page-about .about-timeline-item:nth-child(even) {
    margin-left: calc(50% + 56px);
  }

  .page-about .about-timeline-item::before {
    left: auto;
    right: -49px;
  }

  .page-about .about-timeline-item:nth-child(even)::before {
    right: auto;
    left: -49px;
  }

  .page-about .about-timeline-card {
    display: inline-block;
    width: 100%;
    text-align: left;
  }

  .page-about .about-timeline-item:nth-child(even) .about-timeline-card {
    clip-path: polygon(14px 0, 100% 0, 100% 100%, 0 100%, 0 14px);
  }

  .page-about .about-tech-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-about .about-cred-grid {
    grid-template-columns: repeat(12, 1fr);
    gap: 24px;
    align-items: start;
  }

  .page-about .about-cred-certs {
    grid-column: 1 / span 7;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    align-content: start;
  }

  .page-about .about-cred-card:nth-child(3) {
    grid-column: 1 / -1;
  }

  .page-about .about-cred-figure {
    grid-column: 8 / span 5;
    margin: 0;
  }

  .page-about .about-cred-partners {
    grid-column: 1 / span 7;
  }

  .page-about .about-strip-panel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 40px 48px;
  }

  .page-about .about-strip-copy {
    flex: 1;
  }

  .page-about .about-strip-copy p {
    margin-bottom: 0;
  }

  .page-about .about-strip-actions {
    flex-shrink: 0;
  }
}