.page-about {
  --about-half: 46px;
  background: var(--color-bg);
}

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

.page-about .section__head {
  margin-bottom: var(--space-5);
}

.page-about .section__subtitle {
  max-width: 64ch;
}

.page-about__hero {
  position: relative;
  padding: calc(var(--header-h) + 36px) 0 72px;
  background:
    linear-gradient(135deg, rgba(0, 229, 255, .13) 0%, transparent 46%),
    linear-gradient(rgba(242, 244, 248, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(242, 244, 248, .04) 1px, transparent 1px),
    var(--color-bg);
  background-size: auto, 36px 36px, 36px 36px, auto;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 36px), 0 100%);
}

.page-about__hero-grid {
  display: grid;
  gap: var(--space-5);
  margin-top: var(--space-5);
}

.page-about__hero-copy h1 {
  margin: var(--space-4) 0 0;
  font-family: var(--font-head);
  font-size: clamp(28px, 5vw, 56px);
  line-height: .98;
  text-transform: uppercase;
  letter-spacing: .01em;
  color: var(--color-text);
}

.page-about__hero-lead {
  margin-top: var(--space-4);
  max-width: 58ch;
  font-size: var(--text-base);
  line-height: 1.75;
  color: var(--color-muted);
}

.page-about__hero-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin-top: var(--space-5);
  max-width: 520px;
}

.page-about__hero-meta-item {
  background: rgba(18, 20, 28, .8);
  border-left: 2px solid var(--color-accent);
  padding: var(--space-3);
}

.page-about__hero-meta-val {
  display: block;
  font-family: var(--font-head);
  font-size: var(--text-2xl);
  line-height: 1;
  color: var(--color-text);
}

.page-about__hero-meta-label {
  display: block;
  margin-top: 6px;
  font-size: var(--text-xs);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.page-about__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.page-about__hero-visual {
  position: relative;
  border: 1px solid rgba(0, 229, 255, .3);
  background: var(--color-panel);
  clip-path: polygon(4% 0, 100% 0, 100% 92%, 96% 100%, 0 100%, 0 8%);
}

.page-about__hero-visual svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-about__overview-grid {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.page-about__overview-copy p {
  color: var(--color-muted);
  line-height: 1.75;
}

.page-about__overview-copy p + p {
  margin-top: var(--space-4);
}

.page-about__checklist {
  display: grid;
  gap: var(--space-2);
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
}

.page-about__checklist li {
  position: relative;
  padding: 0 0 var(--space-2) 28px;
  border-bottom: 1px solid rgba(242, 244, 248, .07);
  color: var(--color-text);
  font-size: var(--text-sm);
}

.page-about__checklist li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: .4em;
  width: 8px;
  height: 8px;
  background: var(--color-lime);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.page-about__overview-figure {
  position: relative;
  margin: 0;
}

.page-about__overview-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  clip-path: polygon(8% 0, 100% 0, 92% 100%, 0 100%);
}

.page-about__overview-figure figcaption {
  margin-top: var(--space-2);
  text-align: right;
  font-size: var(--text-xs);
  color: var(--color-muted);
  letter-spacing: .06em;
}

.page-about__milestones {
  position: relative;
  overflow: hidden;
}

.page-about__milestones::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(242, 244, 248, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(242, 244, 248, .035) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
}

.page-about__timeline {
  position: relative;
  margin-top: var(--space-6);
  padding-left: 64px;
}

.page-about__timeline-rail {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 26px;
  width: 1px;
  background: repeating-linear-gradient(to bottom, rgba(0, 229, 255, .45) 0 2px, transparent 2px 20px);
  transform: translateX(-50%);
}

.page-about__timeline-rail::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0, 229, 255, .9), rgba(0, 229, 255, .35) 55%, rgba(168, 85, 247, .7));
  opacity: .55;
}

.page-about__milestone {
  position: relative;
  margin-bottom: var(--space-6);
}

.page-about__milestone-card {
  position: relative;
}

.page-about__milestone-num {
  position: absolute;
  top: var(--space-3);
  right: var(--space-4);
  font-family: var(--font-head);
  font-size: var(--text-3xl);
  line-height: 1;
  color: rgba(0, 229, 255, .18);
}

.page-about__milestone-content {
  padding-right: 48px;
}

.page-about__milestone-content h3 {
  margin: var(--space-2) 0 var(--space-2);
  font-family: var(--font-head);
  font-size: var(--text-xl);
  text-transform: uppercase;
  letter-spacing: .02em;
  color: var(--color-text);
}

.page-about__milestone-content p {
  max-width: 46ch;
  margin: 0;
  color: var(--color-muted);
  font-size: var(--text-sm);
  line-height: 1.7;
}

.page-about__milestone::before {
  content: '';
  position: absolute;
  left: -38px;
  top: 38px;
  width: 38px;
  height: 2px;
  background: linear-gradient(to right, var(--color-accent), rgba(0, 229, 255, .18));
  z-index: 1;
}

.page-about__milestone-node {
  position: absolute;
  left: -45px;
  top: 32px;
  width: 14px;
  height: 14px;
  background: var(--color-bg);
  border: 2px solid var(--color-accent);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
  z-index: 2;
  opacity: .35;
  transition: opacity .3s var(--ease), box-shadow .3s var(--ease);
}

.page-about__milestone[data-reveal].is-revealed .page-about__milestone-node {
  opacity: 1;
  box-shadow: 0 0 18px rgba(0, 229, 255, .75);
}

.page-about__certs-grid {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.page-about__certs-visual {
  position: relative;
  min-height: 320px;
  margin: 0;
  overflow: hidden;
  background: var(--color-panel);
  border: 1px solid rgba(168, 85, 247, .35);
  clip-path: polygon(0 0, calc(100% - 32px) 0, 100% 32px, 100% 100%, 32px 100%, 0 calc(100% - 32px));
}

.page-about__certs-visual img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-about__certs-visual figcaption {
  position: absolute;
  left: 12px;
  bottom: 12px;
  z-index: 2;
  max-width: 70%;
  padding: var(--space-2) var(--space-3);
  background: rgba(10, 11, 15, .78);
  border-left: 2px solid var(--color-accent-alt);
  font-size: var(--text-xs);
  color: var(--color-text);
}

.page-about__certs-lock {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2;
  width: 56px;
  height: 56px;
}

.page-about__certs-list {
  display: grid;
  gap: var(--space-4);
}

.page-about__cert-item {
  padding: var(--space-4);
  border-bottom: 2px solid rgba(0, 229, 255, .15);
}

.page-about__cert-item h3 {
  margin: var(--space-3) 0 var(--space-2);
  font-family: var(--font-head);
  font-size: var(--text-lg);
  text-transform: uppercase;
  color: var(--color-text);
}

.page-about__cert-item p {
  margin: 0;
  color: var(--color-muted);
  font-size: var(--text-sm);
  line-height: 1.7;
}

.page-about__trust-note {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-6);
  padding: var(--space-4);
  background: rgba(0, 229, 255, .06);
  border-left: 2px solid var(--color-lime);
}

.page-about__trust-note p {
  margin: 0;
  color: var(--color-text);
  line-height: 1.6;
  font-size: var(--text-sm);
}

.page-about__capability-grid {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.page-about__capability-figure {
  position: relative;
  margin: 0;
}

.page-about__capability-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  clip-path: polygon(24px 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%, 0 24px);
}

.page-about__capability-figure::after {
  content: '';
  position: absolute;
  right: -12px;
  bottom: -12px;
  width: 42%;
  height: 22%;
  background: repeating-linear-gradient(135deg, rgba(0, 229, 255, .3) 0 1px, transparent 1px 8px);
  z-index: 1;
}

.page-about__capability-figure figcaption {
  margin-top: var(--space-2);
  text-align: right;
  font-size: var(--text-xs);
  color: var(--color-muted);
}

.page-about__capability-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid rgba(242, 244, 248, .08);
}

.page-about__capability-item:last-child {
  border-bottom: none;
}

.page-about__capability-num {
  min-width: 32px;
  padding-bottom: 4px;
  border-bottom: 2px solid var(--color-accent);
  font-family: var(--font-head);
  font-size: var(--text-2xl);
  line-height: 1;
  color: var(--color-lime);
}

.page-about__capability-item h3 {
  margin: 0 0 var(--space-2);
  font-family: var(--font-head);
  font-size: var(--text-lg);
  text-transform: uppercase;
  color: var(--color-text);
}

.page-about__capability-item p {
  margin: 0;
  color: var(--color-muted);
  font-size: var(--text-sm);
  line-height: 1.7;
}

.page-about__next-panel {
  position: relative;
  display: grid;
  gap: var(--space-5);
  padding: clamp(24px, 5vw, 64px);
  background:
    linear-gradient(135deg, rgba(0, 229, 255, .1), transparent 55%),
    var(--color-panel);
  border: 1px solid rgba(0, 229, 255, .2);
}

.page-about__next-copy h2 {
  margin: var(--space-3) 0 var(--space-2);
  font-family: var(--font-head);
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.1;
  text-transform: uppercase;
  color: var(--color-text);
}

.page-about__next-copy p {
  max-width: 52ch;
  margin: 0;
  color: var(--color-muted);
  line-height: 1.7;
}

.page-about__next-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

@media (min-width: 768px) {
  .page-about__hero-meta {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about__hero-copy h1 {
    font-size: clamp(36px, 5vw, 56px);
  }
}

@media (min-width: 960px) {
  .page-about__hero-grid {
    grid-template-columns: 1.1fr .9fr;
    align-items: center;
    gap: var(--space-7);
    margin-top: var(--space-6);
  }

  .page-about__hero-copy h1 {
    font-size: clamp(40px, 6vw, 64px);
  }

  .page-about__overview-grid,
  .page-about__capability-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: var(--space-7);
  }

  .page-about__certs-grid {
    grid-template-columns: .9fr 1.1fr;
    align-items: stretch;
    gap: var(--space-7);
  }

  .page-about__certs-list {
    grid-template-columns: 1fr 1fr;
    align-content: start;
  }

  .page-about__milestones::before {
    background-size: 56px 56px;
  }

  .page-about__timeline {
    padding-left: 0;
  }

  .page-about__timeline-rail {
    left: 50%;
  }

  .page-about__milestone {
    width: calc(50% - var(--about-half));
    margin-bottom: var(--space-7);
  }

  .page-about__timeline > .page-about__milestone:nth-child(even) {
    margin-right: 0;
    margin-left: calc(50% + var(--about-half));
  }

  .page-about__timeline > .page-about__milestone:nth-child(odd) {
    margin-left: 0;
    margin-right: calc(50% + var(--about-half));
  }

  .page-about__timeline > .page-about__milestone:nth-child(even)::before {
    left: -46px;
    right: auto;
    width: 46px;
    background: linear-gradient(to right, var(--color-accent), rgba(0, 229, 255, .2));
  }

  .page-about__timeline > .page-about__milestone:nth-child(even) .page-about__milestone-node {
    left: -53px;
    right: auto;
  }

  .page-about__timeline > .page-about__milestone:nth-child(odd)::before {
    left: auto;
    right: -46px;
    width: 46px;
    background: linear-gradient(to left, var(--color-accent), rgba(0, 229, 255, .2));
  }

  .page-about__timeline > .page-about__milestone:nth-child(odd) .page-about__milestone-node {
    left: auto;
    right: -53px;
  }

  .page-about__next-panel {
    grid-template-columns: 1.2fr .8fr;
    align-items: center;
  }
}