.page-about {
  --about-radius: 1.25rem;
  --about-line: 1px solid rgba(201, 169, 97, 0.25);
}

/* ── Hero ───────────────────────── */
.page-about .about-hero {
  padding: calc(var(--pg-header-h) + 2.5rem) 0 3rem;
  background:
    radial-gradient(circle at 82% 18%, rgba(77, 208, 225, 0.14), transparent 38%),
    radial-gradient(circle at 12% 82%, rgba(201, 169, 97, 0.1), transparent 32%),
    linear-gradient(135deg, #0A192F 0%, #0F1B2D 52%, #173A5E 100%);
  color: var(--pg-text);
  position: relative;
  overflow: hidden;
}

.page-about .about-hero__layout {
  display: grid;
  gap: 2.5rem;
  align-items: center;
  margin-top: 2rem;
}

.page-about .about-hero__content {
  max-width: 46rem;
}

.page-about .about-hero__title {
  font-family: var(--pg-font-display);
  font-size: clamp(2rem, 5.4vw, 3.2rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0.75rem 0 1.25rem;
  background: linear-gradient(100deg, #F5F7FA 0%, #FFFFFF 55%, #C9A961 125%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-about .about-hero__lead {
  font-size: 1.06rem;
  line-height: 1.75;
  color: var(--pg-text-muted);
  max-width: 40rem;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.page-about .about-hero__visual {
  display: none;
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  margin-top: 2.5rem;
  background: rgba(201, 169, 97, 0.16);
  border: 1px solid rgba(201, 169, 97, 0.14);
  border-radius: var(--pg-radius-md);
  overflow: hidden;
}

.page-about .about-hero__stat {
  background: #0F1B2D;
  padding: 1.1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.page-about .about-hero__num {
  font-family: var(--pg-font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--pg-gold);
  line-height: 1;
}

.page-about .about-hero__label {
  font-size: 0.8rem;
  color: var(--pg-text-muted);
  line-height: 1.4;
}

/* ── Brand positioning ──────────── */
.page-about .about-position {
  background: var(--pg-bg-light);
  color: var(--pg-text-on-light);
}

.page-about .about-position__grid {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.page-about .about-position__media {
  position: relative;
  border-radius: var(--about-radius);
  overflow: hidden;
  background: #DDE5EE;
}

.page-about .about-position__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  border-radius: var(--about-radius);
}

.page-about .about-position__stamp {
  position: absolute;
  right: 1.25rem;
  bottom: 1rem;
  width: 3.5rem;
  height: 3.5rem;
  display: grid;
  place-items: center;
  background: var(--pg-gold);
  color: #0A192F;
  font-family: var(--pg-font-display);
  font-weight: 700;
  font-size: 1.15rem;
  border-radius: 50%;
  transform: rotate(12deg);
}

.page-about .about-position__content h2 {
  font-family: var(--pg-font-display);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  line-height: 1.15;
  margin: 0.6rem 0 1.25rem;
  color: var(--pg-text-on-light);
}

.page-about .about-position__lead {
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.7;
  color: var(--pg-text-on-light);
  margin-bottom: 1rem;
}

.page-about .about-position__text {
  color: #2D4058;
  line-height: 1.75;
  margin-bottom: 1.5rem;
}

.page-about .about-position__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.8rem;
}

.page-about .about-position__list li {
  position: relative;
  padding-left: 1.7rem;
  color: #2D4058;
  line-height: 1.55;
  font-size: 0.95rem;
}

.page-about .about-position__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45rem;
  width: 0.9rem;
  height: 0.9rem;
  border: 2px solid var(--pg-gold);
  border-radius: 50%;
  background: transparent;
}

/* ── Docs system ────────────────── */
.page-about .about-docs {
  background:
    radial-gradient(circle at 90% 5%, rgba(77, 208, 225, 0.1), transparent 36%),
    linear-gradient(135deg, #0A192F, #0F1B2D 70%, #142A41);
  color: var(--pg-text);
}

.page-about .about-docs__head {
  text-align: left;
}

.page-about .about-docs__sub {
  max-width: 42rem;
}

.page-about .about-docs__grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 2.25rem;
}

.page-about .about-docs__card {
  background: rgba(23, 58, 94, 0.55);
  border: var(--about-line);
  border-radius: var(--pg-radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.page-about .about-docs__card:hover {
  border-color: var(--pg-gold);
  transform: translateY(-3px);
}

.page-about .about-docs__card--feature {
  background: linear-gradient(135deg, rgba(23, 58, 94, 0.9), rgba(10, 25, 47, 0.8));
}

.page-about .about-docs__card h3 {
  font-family: var(--pg-font-display);
  font-size: 1.25rem;
  line-height: 1.3;
  margin: 0;
  color: #F5F7FA;
}

.page-about .about-docs__card p {
  color: var(--pg-text-muted);
  font-size: 0.94rem;
  line-height: 1.7;
  margin: 0;
}

.page-about .about-docs__tag {
  align-self: flex-start;
  background: rgba(201, 169, 97, 0.1);
  border: 1px solid rgba(201, 169, 97, 0.3);
  color: var(--pg-gold);
  border-radius: 999px;
  padding: 0.3rem 0.75rem;
  font-size: 0.75rem;
  line-height: 1;
}

.page-about .about-docs__visual {
  margin-top: 2.5rem;
  display: grid;
  gap: 1.5rem;
  background: #142A41;
  border-radius: var(--pg-radius-lg);
  overflow: hidden;
  grid-template-columns: 1fr;
}

.page-about .about-docs__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 0;
}

.page-about .about-docs__caption {
  padding: 0 1.5rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.page-about .about-docs__caption-line {
  color: var(--pg-cyan);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page-about .about-docs__caption strong {
  font-family: var(--pg-font-display);
  font-size: 1.5rem;
  color: #F5F7FA;
}

.page-about .about-docs__caption p {
  color: var(--pg-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0;
}

/* ── Version management ─────────── */
.page-about .about-version {
  background: var(--pg-bg-light);
  color: var(--pg-text-on-light);
}

.page-about .about-version__sub {
  max-width: 40rem;
}

.page-about .about-version__layout {
  display: grid;
  gap: 2.5rem;
  margin-top: 2.25rem;
}

.page-about .about-timeline {
  position: relative;
  display: grid;
  gap: 1.2rem;
  padding-left: 2rem;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 0.5rem;
  top: 0.25rem;
  bottom: 0.25rem;
  width: 3px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--pg-gold), rgba(201, 169, 97, 0.15), var(--pg-cyan));
}

.page-about .about-timeline__item {
  position: relative;
}

.page-about .about-timeline__dot {
  position: absolute;
  left: -2rem;
  top: 1.3rem;
  width: 0.9rem;
  height: 0.9rem;
  border-radius: 50%;
  background: var(--pg-cyan);
  box-shadow: 0 0 0 4px rgba(77, 208, 225, 0.18);
  transform: translateX(-50%);
}

.page-about .about-timeline__item:first-child .about-timeline__dot {
  background: var(--pg-gold);
  box-shadow: 0 0 0 4px rgba(201, 169, 97, 0.22);
}

.page-about .about-timeline__card {
  background: #FFFFFF;
  border: 1px solid #E3E9F2;
  border-radius: var(--pg-radius-md);
  padding: 1.25rem 1.35rem;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.page-about .about-timeline__card:hover {
  border-color: rgba(201, 169, 97, 0.6);
  box-shadow: 0 12px 30px -18px rgba(15, 27, 45, 0.35);
}

.page-about .about-timeline__card h3 {
  font-family: var(--pg-font-display);
  font-size: 1.14rem;
  color: #0F1B2D;
  margin: 0 0 0.5rem;
}

.page-about .about-timeline__card p {
  margin: 0;
  color: #48607C;
  font-size: 0.92rem;
  line-height: 1.65;
}

.page-about .about-version__aside {
  display: grid;
  gap: 1.25rem;
}

.page-about .about-version__bento {
  background: #0F1B2D;
  border: 1px solid rgba(201, 169, 97, 0.3);
  border-radius: var(--pg-radius-lg);
  padding: 1.5rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.page-about .about-version__metric {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.page-about .about-version__metric-num {
  font-family: var(--pg-font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--pg-gold);
  line-height: 1;
}

.page-about .about-version__metric-label {
  color: var(--pg-text-muted);
  font-size: 0.78rem;
  line-height: 1.4;
}

.page-about .about-version__note {
  grid-column: 1 / -1;
  margin: 0;
  color: #B9C9DE;
  font-size: 0.88rem;
  line-height: 1.6;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(201, 169, 97, 0.16);
}

.page-about .about-version__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--pg-radius-lg);
  aspect-ratio: 4 / 3;
}

/* ── Source management ──────────── */
.page-about .about-source {
  background:
    radial-gradient(circle at 90% 90%, rgba(201, 169, 97, 0.08), transparent 38%),
    linear-gradient(135deg, #0F1B2D, #0A192F 60%, #173A5E);
  color: var(--pg-text);
}

.page-about .about-source__sub {
  max-width: 40rem;
}

.page-about .about-source__steps {
  display: grid;
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.page-about .about-source__step {
  background: rgba(23, 58, 94, 0.4);
  border: 1px solid rgba(201, 169, 97, 0.22);
  border-radius: var(--pg-radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.page-about .about-source__step:hover {
  border-color: var(--pg-gold);
  transform: translateY(-4px);
}

.page-about .about-source__num {
  font-family: var(--pg-font-display);
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1;
  color: rgba(201, 169, 97, 0.9);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.page-about .about-source__num::after {
  content: "";
  height: 1px;
  flex: 1;
  background: linear-gradient(90deg, rgba(201, 169, 97, 0.35), transparent);
}

.page-about .about-source__body h3 {
  font-family: var(--pg-font-display);
  font-size: 1.2rem;
  margin: 0 0 0.5rem;
  color: #F5F7FA;
}

.page-about .about-source__body p {
  color: var(--pg-text-muted);
  font-size: 0.94rem;
  line-height: 1.7;
  margin: 0;
}

/* ── Continue links ─────────────── */
.page-about .about-connect {
  background: var(--pg-bg-light);
  color: var(--pg-text-on-light);
}

.page-about .about-connect__head {
  text-align: left;
}

.page-about .about-connect__grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 2rem;
}

.page-about .about-connect__card {
  display: block;
  background: #FFFFFF;
  border: 1px solid #DCE5EF;
  border-radius: var(--pg-radius-lg);
  padding: 1.75rem;
  text-decoration: none;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.page-about .about-connect__card:hover {
  border-color: var(--pg-gold);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -28px rgba(15, 27, 45, 0.25);
}

.page-about .about-connect__card h3 {
  font-family: var(--pg-font-display);
  font-size: 1.2rem;
  color: #0F1B2D;
  margin: 0.75rem 0 0.4rem;
}

.page-about .about-connect__card p {
  color: #48607C;
  font-size: 0.92rem;
  line-height: 1.6;
  margin: 0;
}

.page-about .about-connect__card .pg-kicker {
  color: var(--pg-gold);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

/* ── Tablet ─────────────────────── */
@media (min-width: 640px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about .about-hero__stat {
    padding: 1.4rem 1.5rem;
  }
  .page-about .about-docs__visual {
    grid-template-columns: 1.4fr 1fr;
    align-items: stretch;
  }
  .page-about .about-docs__img {
    height: 100%;
  }
  .page-about .about-docs__caption {
    justify-content: center;
    padding: 2.5rem 2rem;
  }
  .page-about .about-connect__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ── Desktop ────────────────────── */
@media (min-width: 960px) {
  .page-about .about-hero__layout {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    gap: 3rem;
  }
  .page-about .about-hero__visual {
    display: flex;
    justify-content: center;
    position: relative;
  }
  .page-about .about-hero__globe {
    width: 100%;
    max-width: 26rem;
    opacity: 0.9;
  }
  .page-about .about-hero__globe::before {
    content: "";
    display: block;
    padding-top: 100%;
  }
  .page-about .about-hero__globe svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
  }
  .page-about .about-position__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: 4rem;
  }
  .page-about .about-docs__grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about .about-docs__card--feature {
    grid-column: span 2;
  }
  .page-about .about-version__layout {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
  .page-about .about-source__steps {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-about .about-source__step {
    padding: 2rem 1.75rem;
  }
}