.page-about {
  --about-grid-line: rgba(180, 76, 255, 0.06);
  --about-grid-line-blue: rgba(0, 229, 255, 0.07);
  --about-glow-purple: rgba(180, 76, 255, 0.25);
  --about-glow-blue: rgba(0, 229, 255, 0.18);
  --about-glow-pink: rgba(255, 77, 109, 0.18);
  --about-shadow-card: 10px 10px 0 rgba(0, 0, 0, 0.45);
  background-image:
    linear-gradient(var(--about-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-grid-line) 1px, transparent 1px),
    linear-gradient(135deg, transparent 0%, rgba(180, 76, 255, 0.03) 50%, transparent 100%);
  background-size: 48px 48px, 48px 48px, 100% 100%;
  padding-bottom: 48px;
}

.page-about .breadcrumb {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 28px 32px 0;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-muted);
}

.page-about .breadcrumb a {
  color: var(--color-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible {
  color: var(--color-purple);
  outline: 2px solid var(--color-purple);
  outline-offset: 2px;
}

.page-about .breadcrumb__sep {
  margin: 0 8px;
  color: var(--color-border);
}

.page-about .about-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 40px 32px 72px;
}

.page-about .about-hero__kicker {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-purple);
  margin: 0 0 14px;
}

.page-about .about-hero__content h1 {
  font-size: clamp(42px, 9vw, 84px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 0 0 24px;
  background: linear-gradient(100deg, var(--color-purple) 0%, var(--color-blue) 70%, var(--color-pink) 125%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--color-purple);
}

.page-about .about-hero__lead {
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-muted);
  max-width: 600px;
  margin: 0 0 28px;
}

.page-about .about-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .about-hero__tags .tag {
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 6px 14px;
  letter-spacing: 0.02em;
}

.page-about .about-hero__tags .tag--hot {
  border-color: var(--color-pink);
  color: var(--color-pink);
  box-shadow: 0 0 16px var(--about-glow-pink);
}

.page-about .about-hero__visual {
  border: 2px solid var(--color-border);
  box-shadow: 14px 14px 0 rgba(180, 76, 255, 0.18);
  overflow: hidden;
  position: relative;
}

.page-about .about-hero__visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(180, 76, 255, 0.15) 0%, transparent 40%);
  pointer-events: none;
}

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

.page-about .section__head {
  margin-bottom: 28px;
}

.page-about .section__kicker {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-blue);
  margin: 0 0 8px;
}

.page-about .section__title {
  font-size: 32px;
  font-weight: 900;
  line-height: 1.2;
  margin: 0;
}

.page-about .lead {
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-muted);
  margin: 0 0 20px;
}

.page-about .about-overview {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 56px 32px;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: rgba(22, 22, 31, 0.6);
}

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

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

.page-about .about-overview__list li {
  padding-left: 20px;
  position: relative;
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text);
}

.page-about .about-overview__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 8px;
  background: var(--color-purple);
  box-shadow: 0 0 8px var(--color-purple);
  border-radius: 2px;
}

.page-about .about-features {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 72px 32px;
}

.page-about .about-features__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-about .about-feature {
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-purple);
  padding: 24px 24px 20px;
  position: relative;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.page-about .about-feature:hover {
  border-color: var(--color-purple);
  transform: translateY(-3px);
  box-shadow: 8px 8px 0 rgba(180, 76, 255, 0.2);
}

.page-about .about-feature:focus-within {
  border-color: var(--color-blue);
  box-shadow: 0 0 0 2px var(--about-glow-blue);
}

.page-about .about-feature__num {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-blue);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.page-about .about-feature h3 {
  font-size: 20px;
  font-weight: 900;
  line-height: 1.3;
  margin: 0 0 12px;
  color: var(--color-text);
}

.page-about .about-feature p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-muted);
  margin: 0 0 16px;
}

.page-about .about-feature a {
  color: var(--color-blue);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
  transition: color 0.2s ease;
}

.page-about .about-feature a:hover {
  color: var(--color-purple);
}

.page-about .about-feature a:focus-visible {
  outline: 2px solid var(--color-blue);
  outline-offset: 2px;
}

.page-about .about-timeline {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 72px 32px;
  border-top: 1px solid var(--color-border);
  background: rgba(22, 22, 31, 0.4);
}

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

.page-about .about-timeline__track {
  position: relative;
  padding-left: 32px;
}

.page-about .about-timeline__track::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 4px;
  bottom: 4px;
  width: 3px;
  background: linear-gradient(to bottom, var(--color-purple) 0%, var(--color-blue) 60%, var(--color-muted) 100%);
  border-radius: 3px;
  opacity: 0.7;
}

.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: -28px;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-purple);
  border: 2px solid var(--color-bg);
  box-shadow: 0 0 14px rgba(180, 76, 255, 0.7);
  z-index: 1;
  transition: box-shadow 0.2s ease, background 0.2s ease;
}

.page-about .about-timeline__item:hover::before,
.page-about .about-timeline__item:focus-within::before {
  background: var(--color-blue);
  box-shadow: 0 0 22px rgba(0, 229, 255, 0.8);
}

.page-about .about-timeline__year {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-blue);
  display: inline-block;
  margin-bottom: 6px;
  letter-spacing: 0.08em;
}

.page-about .about-timeline__content {
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  padding: 16px 20px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-about .about-timeline__content:hover {
  border-color: var(--color-blue);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.12);
}

.page-about .about-timeline__content h3 {
  font-size: 17px;
  font-weight: 900;
  margin: 0 0 6px;
}

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

.page-about .about-timeline__visual {
  border: 1px solid var(--color-border);
  box-shadow: 10px 10px 0 rgba(0, 229, 255, 0.12);
  overflow: hidden;
  align-self: start;
}

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

.page-about .about-stats {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 72px 32px;
  border-top: 1px solid var(--color-border);
}

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

.page-about .about-stats__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.page-about .about-stat {
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  padding: 24px 16px;
  text-align: left;
  position: relative;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-about .about-stat::after {
  content: '';
  position: absolute;
  right: 0;
  bottom: 0;
  width: 30px;
  height: 3px;
  background: var(--color-pink);
  transition: width 0.2s ease;
}

.page-about .about-stat:hover {
  border-color: var(--color-purple);
  box-shadow: 6px 6px 0 rgba(180, 76, 255, 0.15);
}

.page-about .about-stat:hover::after {
  width: 100%;
}

.page-about .about-stat__num {
  display: block;
  font-size: 36px;
  font-weight: 900;
  line-height: 1.1;
  color: var(--color-purple);
  font-family: var(--font-mono);
  margin-bottom: 6px;
}

.page-about .about-stat__label {
  font-size: 13px;
  color: var(--color-muted);
  font-family: var(--font-sans);
}

.page-about .about-stats__visual {
  border: 1px solid var(--color-border);
  box-shadow: 10px 10px 0 rgba(255, 77, 109, 0.12);
  overflow: hidden;
  max-width: 300px;
}

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

.page-about .about-stats__note {
  margin-top: 28px;
  padding: 16px 20px;
  border-left: 3px solid var(--color-blue);
  background: rgba(0, 229, 255, 0.06);
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-muted);
}

.page-about .about-contact {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 64px 32px 80px;
  border-top: 1px solid var(--color-border);
  background: rgba(22, 22, 31, 0.5);
}

.page-about .about-contact > p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-muted);
  max-width: 480px;
  margin: 0 0 24px;
}

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

.page-about .about-contact__links .btn:focus-visible {
  outline: 2px solid var(--color-blue);
  outline-offset: 2px;
}

@media (min-width: 768px) {
  .page-about .about-hero {
    grid-template-columns: 5fr 4fr;
    align-items: center;
    padding: 64px 32px 80px;
    gap: 48px;
  }

  .page-about .about-hero__lead {
    font-size: 17px;
  }

  .page-about .about-overview__layout {
    grid-template-columns: 1.2fr 1fr;
    gap: 48px;
    align-items: start;
  }

  .page-about .about-features__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .about-timeline__layout {
    grid-template-columns: 1fr 320px;
    gap: 48px;
    align-items: start;
  }

  .page-about .about-stats__layout {
    grid-template-columns: 1fr 280px;
    gap: 48px;
    align-items: center;
  }

  .page-about .about-stat__num {
    font-size: 44px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-features__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}