.page-about {
  --about-accent: var(--accent-green);
  --about-warn: var(--accent-orange);
  --about-violet: var(--accent-purple);
  --about-panel: rgba(19, 28, 46, 0.74);
  --about-line: rgba(0, 230, 138, 0.35);
  --about-grid: rgba(0, 230, 138, 0.045);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--body-size);
  line-height: var(--line-height-body);
  overflow-x: hidden;
}

.page-about a {
  color: inherit;
}

/* ===== Hero ===== */
.about-hero {
  position: relative;
  padding: calc(var(--space-unit) * 2) 0 calc(var(--space-unit) * 4);
  border-bottom: 1px solid var(--divider);
  background-color: var(--bg-primary);
  background-image:
    linear-gradient(var(--about-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-grid) 1px, transparent 1px);
  background-size: 3.5rem 3.5rem;
}

.about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 1.75rem;
  height: 1px;
  background: linear-gradient(90deg, var(--about-accent) 0%, transparent 72%);
  opacity: 0.45;
  pointer-events: none;
}

.about-crumbs {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin: 0 0 2.5rem;
  padding-left: 0.125rem;
  font-family: var(--font-data);
  font-size: 0.8125rem;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.about-crumbs a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.about-crumbs a:hover {
  color: var(--about-accent);
}

.about-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: calc(var(--space-unit) * 2);
  align-items: center;
}

.about-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0 0 1rem;
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--about-accent);
}

.about-eyebrow::before {
  content: "";
  width: 2rem;
  height: 1px;
  background: var(--about-accent);
  flex: 0 0 auto;
}

.about-hero h1 {
  margin: 0 0 1.5rem;
  max-width: 19ch;
  font-family: var(--font-title);
  font-weight: 300;
  font-size: clamp(2.125rem, 5.6vw, 4rem);
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  text-wrap: balance;
}

.about-hero__lead {
  max-width: 62ch;
  margin: 0 0 2rem;
  font-size: 1.0625rem;
  color: var(--text-secondary);
}

.about-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem 1.25rem;
}

.about-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  border-left: 1px solid var(--divider);
  padding-left: 1rem;
}

.about-hero__num {
  font-family: var(--font-data);
  font-weight: 500;
  font-size: 2.25rem;
  line-height: 1;
  color: var(--about-accent);
}

.about-hero__label {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.about-hero__media {
  position: relative;
  margin: 0;
}

.about-hero__media::before {
  content: "";
  position: absolute;
  inset: -0.75rem -0.75rem 1rem 1rem;
  border: 1px solid var(--about-line);
  pointer-events: none;
  z-index: 1;
  mix-blend-mode: screen;
}

.about-hero__img {
  position: relative;
  z-index: 2;
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(1.15) contrast(1.04);
}

/* ===== Section heading ===== */
.about-section-head {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 0 0 2.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--divider);
}

.about-section-index {
  font-family: var(--font-data);
  font-size: 0.8125rem;
  letter-spacing: 0.22em;
  color: var(--about-accent);
  text-transform: uppercase;
}

.about-section-head h2 {
  margin: 0;
  max-width: 24ch;
  font-family: var(--font-title);
  font-weight: 300;
  font-size: clamp(1.875rem, 4.2vw, 3.125rem);
  line-height: 1.15;
  color: var(--text-primary);
  text-wrap: balance;
}

/* ===== Philosophy (light block) ===== */
.about-philosophy {
  background: var(--bg-content);
  color: var(--text-invert);
  padding: calc(var(--space-unit) * 3.5) 0;
  clip-path: var(--clip-angle);
}

.about-philosophy .about-section-head {
  border-bottom-color: rgba(11, 20, 34, 0.16);
}

.about-philosophy .about-section-index {
  color: var(--about-warn);
}

.about-philosophy .about-section-head h2 {
  color: var(--text-invert);
}

.about-philosophy__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: calc(var(--space-unit) * 2);
  margin-bottom: calc(var(--space-unit) * 2.25);
}

.about-philosophy__main p {
  margin: 0;
  max-width: 66ch;
  font-size: 1.0625rem;
  color: var(--text-invert);
}

.about-philosophy__main p + p {
  margin-top: 1rem;
}

.about-philosophy__main p:first-child {
  font-size: 1.1875rem;
  font-weight: 500;
}

.about-philosophy__note {
  align-self: end;
  max-width: 32ch;
  border-left: 2px solid var(--about-warn);
  padding-left: 1.5rem;
}

.about-philosophy__note p {
  margin: 0 0 0.875rem;
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-invert);
}

.about-philosophy__note-line {
  display: block;
  width: 3rem;
  height: 1px;
  background: var(--about-warn);
}

.about-philosophy__numbers {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  border: 1px solid rgba(11, 20, 34, 0.14);
  background: rgba(11, 20, 34, 0.12);
}

.about-philosophy__stat {
  background: rgba(242, 245, 249, 0.88);
  padding: 1.375rem 1.25rem 1.5rem;
}

.about-philosophy__value {
  display: block;
  font-family: var(--font-data);
  font-weight: 500;
  font-size: 2.75rem;
  line-height: 1;
  color: var(--text-invert);
}

.about-philosophy__unit {
  display: inline-block;
  margin-top: 0.5rem;
  font-family: var(--font-data);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--about-warn);
}

.about-philosophy__stat p {
  margin: 0.75rem 0 0;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: rgba(11, 20, 34, 0.7);
}

/* ===== History timeline ===== */
.about-history {
  padding: calc(var(--space-unit) * 4) 0;
}

.about-history__wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: calc(var(--space-unit) * 2.25);
  align-items: start;
}

.about-timeline__scroller {
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--about-accent) transparent;
  padding-bottom: 1rem;
}

.about-timeline__list {
  list-style: none;
  margin: 0;
  padding: 3rem 0 1rem;
  display: flex;
  gap: 1.5rem;
  min-width: max-content;
  position: relative;
}

.about-timeline__list::before {
  content: "";
  position: absolute;
  top: 3.5625rem;
  left: 0;
  right: 0;
  height: 2px;
  background: repeating-linear-gradient(
    90deg,
    var(--about-accent) 0 2px,
    transparent 2px 14px
  );
  opacity: 0.45;
}

.about-timeline__item {
  position: relative;
  width: 260px;
  flex: 0 0 260px;
}

.about-timeline__node {
  position: absolute;
  top: 0;
  left: 1.25rem;
  width: 1.125rem;
  height: 1.125rem;
  border-radius: 50%;
  border: 2px solid var(--about-accent);
  background: var(--bg-primary);
  box-shadow: 0 0 0 6px rgba(0, 230, 138, 0.12);
  z-index: 2;
}

.about-timeline__item:first-child .about-timeline__node {
  background: var(--about-accent);
  box-shadow:
    0 0 0 6px rgba(0, 230, 138, 0.2),
    0 0 18px rgba(0, 230, 138, 0.55);
}

.about-timeline__year {
  position: absolute;
  top: -2.25rem;
  left: 3.375rem;
  font-family: var(--font-data);
  font-weight: 500;
  font-size: 1.375rem;
  letter-spacing: 0.02em;
  color: var(--about-accent);
  white-space: nowrap;
}

.about-timeline__card {
  margin-top: 2.75rem;
  padding: 1.375rem;
  background: var(--about-panel);
  border: 1px solid var(--divider);
  backdrop-filter: blur(10px);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.about-timeline__card:hover,
.about-timeline__item:first-child .about-timeline__card {
  border-color: var(--about-accent);
  transform: translateY(-2px);
}

.about-timeline__card h3 {
  margin: 0 0 0.625rem;
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-primary);
}

.about-timeline__card p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

.about-history__media {
  position: relative;
  margin: 0;
}

.about-history__media::before {
  content: "";
  position: absolute;
  top: -0.75rem;
  right: -0.75rem;
  width: 3.5rem;
  height: 3.5rem;
  border-top: 1px solid var(--about-accent);
  border-right: 1px solid var(--about-accent);
  z-index: 1;
}

.about-history__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  filter: saturate(0.95) contrast(1.02);
}

/* ===== Data strategy ===== */
.about-data {
  padding: calc(var(--space-unit) * 4) 0;
  background: var(--bg-panel);
  border-top: 1px solid var(--divider);
  border-bottom: 1px solid var(--divider);
}

.about-data__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: calc(var(--space-unit) * 2.5);
}

.about-data__main p {
  margin: 0;
  max-width: 62ch;
  color: var(--text-secondary);
}

.about-data__main p + p {
  margin-top: 1rem;
}

.about-data__main p:first-child {
  color: var(--text-primary);
  font-size: 1.125rem;
}

.about-data__tabs {
  align-self: start;
}

.about-data__tabs .anchor-tabs__list {
  display: flex;
  gap: 0;
  overflow-x: auto;
  border-bottom: 1px solid var(--divider);
  scrollbar-width: thin;
  scrollbar-color: var(--about-accent) transparent;
}

.about-data__tabs .anchor-tabs__tab {
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  padding: 0.875rem 1.125rem;
  font-family: var(--font-data);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.about-data__tabs .anchor-tabs__tab:hover {
  color: var(--about-accent);
}

.about-data__tabs .anchor-tabs__tab.is-active {
  color: var(--about-accent);
  border-bottom-color: var(--about-accent);
}

.about-data__tabs .anchor-tabs__panels {
  padding-top: 1.5rem;
}

.about-data__tabs .anchor-tabs__panel {
  border-left: 2px solid var(--about-violet);
  padding-left: 1.25rem;
}

.about-data__kicker {
  margin: 0 0 0.375rem;
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--about-violet);
}

.about-data__tabs .anchor-tabs__panel h3 {
  margin: 0 0 0.625rem;
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-primary);
}

.about-data__tabs .anchor-tabs__panel p {
  margin: 0;
  max-width: 46ch;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== Commitment ===== */
.about-commit {
  padding: calc(var(--space-unit) * 4) 0;
}

.about-commit__lead {
  max-width: 58ch;
  margin: -1rem 0 2.25rem;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--text-primary);
}

.about-commit__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: calc(var(--space-unit) * 2.25);
}

.about-commit__cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

.about-commit__card {
  position: relative;
  padding: 1.75rem 1.5rem 1.5rem 1.75rem;
  background: var(--about-panel);
  border: 1px solid var(--divider);
  border-left-width: 3px;
  clip-path: var(--clip-angle);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.about-commit__card:nth-child(1) {
  border-left-color: var(--about-accent);
}

.about-commit__card:nth-child(2) {
  border-left-color: var(--about-warn);
}

.about-commit__card:nth-child(3) {
  border-left-color: var(--about-violet);
}

.about-commit__card:nth-child(4) {
  border-left-color: var(--about-accent);
}

.about-commit__card:hover {
  background: rgba(19, 28, 46, 0.88);
  border-top-color: var(--about-accent);
}

.about-commit__tag {
  display: inline-block;
  margin-bottom: 0.75rem;
  font-family: var(--font-data);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-secondary);
  border: 1px solid var(--divider);
  padding: 0.25rem 0.625rem;
}

.about-commit__card h3 {
  margin: 0 0 0.625rem;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.about-commit__card p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.about-commit__aside {
  display: flex;
  flex-direction: column;
  gap: calc(var(--space-unit) * 1.5);
}

.about-commit__media {
  position: relative;
  margin: 0;
}

.about-commit__media::after {
  content: "";
  position: absolute;
  inset: auto auto -0.75rem -0.75rem;
  width: 3.5rem;
  height: 3.5rem;
  border-bottom: 1px solid var(--about-warn);
  border-left: 1px solid var(--about-warn);
  z-index: 1;
}

.about-commit__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.about-commit__cta {
  padding: 1.5rem;
  background: linear-gradient(135deg, rgba(0, 230, 138, 0.08), transparent 60%);
  border: 1px solid var(--divider);
  border-top-color: rgba(0, 230, 138, 0.3);
}

.about-commit__cta p {
  margin: 0 0 1.25rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.about-commit__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.about-commit__links .btn {
  text-decoration: none;
}

/* ===== Responsive ===== */
@media (min-width: 720px) {
  .about-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.5rem;
  }

  .about-philosophy__numbers {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .about-commit__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .about-commit__layout {
    gap: calc(var(--space-unit) * 2.5);
  }
}

@media (min-width: 1024px) {
  .about-hero {
    padding-bottom: calc(var(--space-unit) * 5);
  }

  .about-hero__grid {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, 1fr);
    gap: calc(var(--space-unit) * 3);
  }

  .about-hero h1 {
    font-size: clamp(2.5rem, 4.8vw, 4.125rem);
  }

  .about-hero__img {
    aspect-ratio: 4 / 3;
  }

  .about-philosophy__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.34fr);
    gap: calc(var(--space-unit) * 3);
  }

  .about-philosophy__numbers {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .about-history__wrap {
    grid-template-columns: minmax(0, 1fr) minmax(0, 280px);
    gap: calc(var(--space-unit) * 3);
  }

  .about-history__media {
    position: sticky;
    top: 2rem;
  }

  .about-data__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: calc(var(--space-unit) * 3);
  }

  .about-commit__layout {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: calc(var(--space-unit) * 3);
  }

  .about-commit__aside {
    gap: calc(var(--space-unit) * 1.75);
  }
}