.page-about {
  overflow-x: hidden;
}

/* ===== HERO ===== */
.page-about__hero {
  background:
    radial-gradient(circle at 80% 18%, rgba(57, 255, 20, 0.16), transparent 44%),
    linear-gradient(135deg, var(--c-deep-alt) 0%, var(--c-deep) 70%);
  color: var(--c-text-inverse);
  padding: 32px 0 0;
  position: relative;
  overflow: hidden;
}

.page-about__hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-neon), var(--c-orange));
  z-index: 2;
}

.page-about__hero .breadcrumbs {
  margin-bottom: 40px;
}

.page-about__hero .breadcrumbs__link,
.page-about__hero .breadcrumbs__current {
  color: rgba(255, 255, 255, 0.78);
}

.page-about__hero .breadcrumbs__link:hover {
  color: var(--c-neon);
}

.page-about__hero .breadcrumbs__sep {
  color: rgba(255, 255, 255, 0.4);
}

.page-about__hero-grid {
  display: grid;
  gap: 32px;
  align-items: center;
  margin-bottom: 44px;
}

.page-about__hero .eyebrow {
  color: var(--c-neon);
  margin-bottom: 14px;
}

.page-about__hero h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.9rem, 5.2vw, 3.9rem);
  line-height: 1.14;
  margin: 0 0 18px;
  letter-spacing: 0.01em;
}

.page-about__hero .lead-text {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.02rem;
  line-height: 1.8;
  max-width: 44em;
}

.page-about__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.page-about__hero-visual {
  position: relative;
  margin: 0;
}

.page-about__hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.page-about__hero-lines {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(115deg, transparent 42%, rgba(57, 255, 20, 0.22) 45%, transparent 52%),
    linear-gradient(45deg, transparent 58%, rgba(255, 107, 53, 0.18) 62%, transparent 70%);
  pointer-events: none;
  mix-blend-mode: screen;
}

.page-about__hero-float-stat {
  position: absolute;
  right: 18px;
  bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(10, 31, 68, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(10px);
  border-radius: var(--radius);
  padding: 12px 16px;
}

.page-about__hero-float-label {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.72);
}

.page-about__hero-float-value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
  color: var(--c-neon);
}

.page-about__hero-metrics {
  background: rgba(255, 255, 255, 0.06);
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  padding: 22px 0;
}

.page-about__hero-metrics-inner {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.page-about__hero-metrics .stat-block {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-about__hero-metrics .stat-value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.5rem, 4vw, 2.4rem);
  color: var(--c-neon);
  line-height: 1.1;
}

.page-about__hero-metrics .stat-label {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.82rem;
}

/* ===== CHAPTER HEAD ===== */
.page-about__chapter-head {
  display: flex;
  gap: clamp(14px, 3vw, 28px);
  align-items: flex-start;
  margin: 0 0 44px;
  position: relative;
}

.page-about__chapter-head::before {
  content: "";
  position: absolute;
  top: -14px;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--c-neon), var(--c-orange));
  transform: scaleX(var(--scroll-progress, 0));
  transform-origin: 0 50%;
  opacity: 0.85;
}

.page-about__chapter-num {
  font-family: var(--font-head);
  font-size: clamp(3.4rem, 9vw, 6.4rem);
  line-height: 0.85;
  letter-spacing: -0.03em;
  flex: 0 0 auto;
  min-width: 1.1em;
}

.page-about__chapter-title {
  padding-top: 10px;
  border-top: 2px solid;
  width: 100%;
}

.page-about__chapter-title .eyebrow {
  margin-bottom: 8px;
}

.page-about__chapter-title .section-heading {
  margin: 0;
  max-width: 14em;
}

/* ===== 01 MISSION ===== */
.page-about__mission {
  background: var(--c-light);
  color: var(--c-text);
}

.page-about__mission .page-about__chapter-num {
  color: var(--c-orange);
  opacity: 0.85;
}

.page-about__mission .page-about__chapter-title {
  border-top-color: rgba(10, 31, 68, 0.22);
}

.page-about__mission-layout {
  display: grid;
  gap: 32px;
}

.page-about__mission-copy p {
  font-size: 1.02rem;
  line-height: 1.8;
  color: var(--c-text);
  margin: 0 0 18px;
  max-width: 58em;
}

.page-about__mission-quote {
  margin: 28px 0 0;
  padding: 16px 0 16px 22px;
  border-left: 4px solid var(--c-neon);
  background: rgba(57, 255, 20, 0.08);
}

.page-about__mission-quote p {
  font-family: var(--font-head);
  font-size: 1.2rem;
  line-height: 1.5;
  margin: 0 0 8px;
  color: var(--c-deep);
}

.page-about__mission-quote cite {
  font-style: normal;
  font-size: 0.82rem;
  color: var(--c-muted);
  font-family: var(--font-mono);
}

.page-about__mission-data .glass-card {
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(10, 31, 68, 0.08);
  border-radius: var(--radius-lg);
  padding: 26px;
  box-shadow: var(--shadow-sm);
}

.page-about__mission-data-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.page-about__mission-data-title {
  font-family: var(--font-head);
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: var(--c-deep);
}

.page-about__mission-data-spot {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--c-orange);
  font-weight: 700;
}

.page-about__mission-core {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 0 18px;
  margin-bottom: 14px;
  border-top: 1px dashed rgba(10, 31, 68, 0.14);
  border-bottom: 1px dashed rgba(10, 31, 68, 0.14);
}

.page-about__mission-core-value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 2.4rem;
  line-height: 1;
  color: var(--c-deep);
}

.page-about__mission-core-label {
  font-size: 0.84rem;
  color: var(--c-muted);
}

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

.page-about__data-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
}

.page-about__data-key {
  font-size: 0.92rem;
  color: var(--c-muted);
}

.page-about__data-val {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--c-deep);
}

/* ===== 02 MILESTONES ===== */
.page-about__milestones {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 20%),
    var(--c-deep-alt);
  color: var(--c-text-inverse);
  position: relative;
}

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

.page-about__milestones::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: repeating-linear-gradient(-45deg, rgba(255, 255, 255, 0.04) 0 1px, transparent 1px 14px);
  pointer-events: none;
}

.page-about__milestones .page-about__chapter-num {
  color: var(--c-neon);
  text-shadow: 0 0 28px rgba(57, 255, 20, 0.4);
}

.page-about__milestones .page-about__chapter-title {
  border-top-color: rgba(255, 255, 255, 0.22);
}

.page-about__milestone-layout {
  display: grid;
  gap: 44px;
}

.page-about__timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about__timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 2px;
  bottom: 2px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-neon), var(--c-orange) 78%);
  opacity: 0.5;
}

.page-about__timeline-item {
  position: relative;
  padding-left: 38px;
  padding-bottom: 26px;
}

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

.page-about__timeline-node {
  position: absolute;
  left: 0;
  top: 6px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--c-deep-alt);
  border: 4px solid var(--c-neon);
  box-shadow: 0 0 0 4px rgba(57, 255, 20, 0.18);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.page-about__timeline-item:hover .page-about__timeline-node {
  background: var(--c-neon);
  box-shadow: 0 0 0 8px rgba(57, 255, 20, 0.18);
}

.page-about__timeline-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-left: 3px solid var(--c-neon);
  border-radius: var(--radius);
  padding: 20px 20px 18px;
  transition: background 0.3s ease, border-color 0.3s ease;
}

.page-about__timeline-item:hover .page-about__timeline-card {
  background: rgba(255, 255, 255, 0.1);
  border-left-color: var(--c-orange);
}

.page-about__timeline-year {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--c-neon);
  margin-bottom: 8px;
  letter-spacing: 0.06em;
}

.page-about__timeline-card h3 {
  font-family: var(--font-head);
  font-size: 1.14rem;
  margin: 0 0 10px;
  color: var(--c-white);
  line-height: 1.3;
}

.page-about__timeline-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.68);
}

.page-about__timeline-figure {
  margin: 0;
}

.page-about__timeline-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.28);
}

.page-about__timeline-figure figcaption {
  margin-top: 10px;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.5);
  text-align: center;
  letter-spacing: 0.04em;
}

/* ===== 03 DATA & TECH ===== */
.page-about__data {
  background: linear-gradient(180deg, var(--c-light) 0%, rgba(10, 31, 68, 0.04) 100%);
  color: var(--c-text);
}

.page-about__data .page-about__chapter-num {
  color: var(--c-deep);
  opacity: 0.3;
}

.page-about__data .page-about__chapter-title {
  border-top-color: rgba(10, 31, 68, 0.2);
}

.page-about__data-layout {
  display: grid;
  gap: 40px;
}

.page-about__data-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.page-about__data-metric-row {
  background: var(--c-white);
  border: 1px solid rgba(10, 31, 68, 0.08);
  border-radius: var(--radius);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.page-about__data-metric-row:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: rgba(57, 255, 20, 0.4);
}

.page-about__data-label {
  font-size: 0.78rem;
  color: var(--c-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page-about__data-number {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.7rem, 4vw, 2.5rem);
  color: var(--c-deep);
  line-height: 1;
}

.page-about__data-unit {
  font-size: 0.8rem;
  color: var(--c-muted);
}

.page-about__data-copy p {
  line-height: 1.8;
  color: var(--c-text);
  margin: 0 0 16px;
  max-width: 56em;
}

.page-about__data-figure {
  margin: 28px 0 0;
}

.page-about__data-figure img {
  display: block;
  width: 100%;
  max-width: 560px;
  height: auto;
  margin-inline: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

/* ===== 04 USERS ===== */
.page-about__users {
  background: var(--c-white);
  color: var(--c-text);
}

.page-about__users .page-about__chapter-num {
  color: var(--c-deep);
  opacity: 0.85;
}

.page-about__users .page-about__chapter-title {
  border-top-color: rgba(10, 31, 68, 0.18);
}

.page-about__user-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}

.page-about__user-stat {
  background: linear-gradient(135deg, var(--c-light), #ffffff);
  border: 1px solid rgba(10, 31, 68, 0.07);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-about__user-stat:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
}

.page-about__user-number {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.7rem, 4.5vw, 2.5rem);
  color: var(--c-deep);
  line-height: 1.1;
}

.page-about__user-label {
  display: block;
  margin-top: 6px;
  font-size: 0.84rem;
  color: var(--c-muted);
}

.page-about__user-panels {
  display: grid;
  gap: 16px;
}

.page-about__user-panel {
  background: var(--c-light);
  border-top: 3px solid var(--c-neon);
  border-radius: 0 0 var(--radius) var(--radius);
  padding: 24px;
  transition: background 0.3s ease;
}

.page-about__user-panel:hover {
  background: rgba(10, 31, 68, 0.045);
}

.page-about__user-panel h3 {
  font-family: var(--font-head);
  font-size: 1.04rem;
  margin: 0 0 10px;
  color: var(--c-deep);
}

.page-about__user-panel p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--c-muted);
}

/* ===== OUTRO ===== */
.page-about__outro {
  background:
    radial-gradient(circle at 86% 24%, rgba(57, 255, 20, 0.12), transparent 44%),
    var(--c-deep-alt);
  color: var(--c-text-inverse);
  position: relative;
  overflow: hidden;
}

.page-about__outro-inner {
  display: flex;
  flex-direction: column;
  gap: 30px;
  align-items: flex-start;
}

.page-about__outro .eyebrow {
  color: var(--c-neon);
  margin-bottom: 10px;
}

.page-about__outro h2 {
  font-family: var(--font-head);
  font-size: clamp(1.7rem, 4vw, 2.9rem);
  margin: 0 0 12px;
  max-width: 20em;
  line-height: 1.2;
}

.page-about__outro .lead-text {
  color: rgba(255, 255, 255, 0.72);
  max-width: 44em;
  margin: 0;
}

.page-about__outro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ===== DESKTOP ===== */
@media (min-width: 768px) {
  .page-about__hero {
    padding-top: 44px;
  }

  .page-about__hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 52px;
    margin-bottom: 60px;
  }

  .page-about__hero-metrics-inner {
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
  }

  .page-about__mission-layout {
    grid-template-columns: 1fr 0.72fr;
    gap: 52px;
    align-items: start;
  }

  .page-about__milestone-layout {
    grid-template-columns: 1fr 0.9fr;
    gap: 52px;
    align-items: start;
  }

  .page-about__data-layout {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 52px;
    align-items: start;
  }

  .page-about__data-metrics {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .page-about__data-copy {
    padding-top: 6px;
  }

  .page-about__user-stats {
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    margin-bottom: 52px;
  }

  .page-about__user-panels {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .page-about__outro-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .page-about__outro-actions {
    flex-shrink: 0;
  }
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
  .page-about__data-metric-row,
  .page-about__user-stat,
  .page-about__timeline-card,
  .page-about__timeline-node {
    transition: none;
  }

  .page-about__chapter-head::before {
    transform: none;
    opacity: 0.4;
  }
}

.page-about {
  --scroll-progress: inherit;
}