.page-about {
  --about-toc-width: 240px;
  background: var(--bg-body);
  color: var(--text-body);
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: var(--space-5) var(--space-4) var(--space-7);
  background:
    linear-gradient(rgba(212, 160, 23, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212, 160, 23, 0.16) 1px, transparent 1px),
    linear-gradient(135deg, var(--color-night), var(--color-smoke));
  background-size: 32px 32px, 32px 32px, 100% 100%;
  color: var(--text-invert);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -100px;
  bottom: -140px;
  width: 420px;
  height: 420px;
  background: linear-gradient(135deg, var(--color-red), var(--color-darkgold));
  clip-path: polygon(55% 0, 100% 40%, 82% 100%, 20% 90%, 0% 35%);
  opacity: 0.22;
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
}

.page-about .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: rgba(245, 240, 230, 0.7);
}

.page-about .breadcrumbs a {
  color: var(--color-gold);
  text-decoration: none;
}

.page-about .breadcrumbs a:hover,
.page-about .breadcrumbs a:focus {
  color: var(--color-orange);
}

.page-about .breadcrumbs [aria-current="page"] {
  color: var(--color-mist);
}

.page-about .about-hero__grid {
  display: grid;
  gap: var(--space-6);
  align-items: center;
}

.page-about .about-hero__copy {
  max-width: 100%;
}

.page-about .about-hero__eyebrow {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  margin: 0 0 var(--space-3);
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  color: var(--color-gold);
}

.page-about .about-hero__eyebrow .about-hero__index {
  color: var(--color-orange);
}

.page-about .about-hero h1 {
  margin: 0 0 var(--space-4);
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 4vw, 3.1rem);
  font-weight: 900;
  line-height: 1.15;
  color: var(--color-white);
}

.page-about .about-hero__lead {
  max-width: 62ch;
  margin: 0 0 var(--space-5);
  font-size: 1.05rem;
  line-height: 1.8;
  color: rgba(245, 240, 230, 0.88);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.page-about .about-hero .btn-ghost {
  border-color: rgba(245, 240, 230, 0.6);
  color: var(--color-mist);
}

.page-about .about-hero .btn-ghost:hover,
.page-about .about-hero .btn-ghost:focus {
  border-color: var(--color-orange);
  color: var(--color-orange);
}

.page-about .about-hero__keywords {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: 0;
  margin: 0;
  list-style: none;
}

.page-about .about-hero__keywords li {
  padding: 6px 12px;
  border: 1px solid rgba(212, 160, 23, 0.4);
  background: rgba(26, 26, 46, 0.45);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-mist);
}

.page-about .about-hero__media {
  margin: 0;
}

.page-about .about-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid rgba(212, 160, 23, 0.35);
  box-shadow: var(--shadow-2);
}

.page-about .about-layout {
  display: grid;
  gap: var(--space-6);
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-6) var(--space-4) var(--space-8);
}

.page-about .about-toc {
  font-family: var(--font-mono);
}

.page-about .about-toc__heading {
  margin: 0 0 var(--space-3);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.page-about .about-toc__list {
  padding: 0;
  margin: 0 0 var(--space-4);
  list-style: none;
  border-top: 1px solid var(--line-color);
}

.page-about .about-toc__list li {
  border-bottom: 1px solid var(--line-color);
}

.page-about .about-toc__list a {
  display: flex;
  gap: var(--space-3);
  align-items: baseline;
  padding: var(--space-2) 0;
  text-decoration: none;
  color: var(--text-body);
  transition: color var(--transition-base);
}

.page-about .about-toc__list a:hover,
.page-about .about-toc__list a:focus {
  color: var(--color-red);
}

.page-about .about-toc__list span {
  min-width: 2ch;
  font-size: 0.85rem;
  color: var(--color-gold);
}

.page-about .about-toc .bookmark-tip {
  margin: 0;
  padding-left: var(--space-3);
  border-left: 2px solid var(--color-gold);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.page-about .about-content {
  min-width: 0;
}

.page-about .about-section {
  padding-top: var(--space-5);
  scroll-margin-top: calc(var(--topbar-height) + var(--space-5));
  box-shadow: inset 0 0 0 0 transparent;
  transition: box-shadow var(--transition-base);
}

.page-about .about-section + .about-section {
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--line-color);
}

.page-about .about-section:target {
  box-shadow: inset 3px 0 0 var(--color-gold);
}

.page-about .about-section__head {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  margin-bottom: var(--space-4);
}

.page-about .about-section__index {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--color-gold);
}

.page-about .about-section__head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  color: var(--color-night);
  transition: color var(--transition-base);
}

.page-about .about-section:target .about-section__head h2 {
  color: var(--color-red);
}

.page-about .about-section__intro {
  max-width: 56ch;
  margin-bottom: var(--space-3);
  color: var(--text-muted);
}

.page-about .about-section__intro p {
  margin: 0;
  line-height: 1.7;
}

.page-about .about-mission__body p {
  max-width: 72ch;
  margin: 0 0 var(--space-3);
  line-height: 1.8;
}

.page-about .about-mission__grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-5);
}

.page-about .about-mission__item {
  position: relative;
  padding: var(--space-4);
  background: var(--bg-card);
  border: 1px solid var(--line-color);
  box-shadow: var(--shadow-1);
  transition: transform var(--transition-base), border-color var(--transition-base);
}

.page-about .about-mission__item:hover {
  transform: translateY(-2px);
  border-color: var(--color-gold);
}

.page-about .about-mission__item h3 {
  margin: 0 0 var(--space-2);
  font-family: var(--font-head);
  font-size: 1.05rem;
  color: var(--color-night);
}

.page-about .about-mission__item p {
  margin: 0;
  line-height: 1.7;
  color: var(--text-muted);
}

.page-about .about-mission__num {
  display: block;
  margin-bottom: var(--space-2);
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-red);
}

.page-about .about-timeline {
  position: relative;
  display: grid;
  gap: var(--space-5);
  margin-top: var(--space-6);
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--color-gold), var(--color-red), var(--color-steel), var(--color-night));
}

.page-about .about-timeline__item {
  position: relative;
  padding-left: 40px;
}

.page-about .about-timeline__dot {
  position: absolute;
  top: 20px;
  left: 0;
  box-sizing: border-box;
  width: 18px;
  height: 18px;
  border: 4px solid var(--color-gold);
  border-radius: 50%;
  background: var(--color-night);
}

.page-about .about-timeline__card {
  padding: var(--space-4);
  background: var(--bg-card);
  border: 1px solid var(--line-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
}

.page-about .about-timeline__tag {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-red);
}

.page-about .about-timeline__card h3 {
  margin: 0 0 var(--space-2);
  font-family: var(--font-head);
  font-size: 1.1rem;
  color: var(--color-night);
}

.page-about .about-timeline__card p {
  margin: 0;
  line-height: 1.7;
  color: var(--text-muted);
}

.page-about .about-timeline__item--media {
  padding-left: 40px;
}

.page-about .about-timeline__media {
  margin: 0;
}

.page-about .about-timeline__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-color);
  box-shadow: var(--shadow-1);
}

.page-about .about-data__prose {
  max-width: 72ch;
  margin-bottom: var(--space-5);
}

.page-about .about-data__prose p {
  margin: 0;
  line-height: 1.8;
}

.page-about .about-data__workflow {
  display: grid;
  gap: var(--space-4);
  margin: var(--space-5) 0;
}

.page-about .about-data__step {
  padding: var(--space-4);
  background: var(--bg-card);
  border-top: 3px solid var(--color-gold);
  box-shadow: var(--shadow-1);
}

.page-about .about-data__step h3 {
  margin: 0 0 var(--space-2);
  font-family: var(--font-head);
  font-size: 1.1rem;
  color: var(--color-night);
}

.page-about .about-data__step p {
  margin: 0;
  line-height: 1.7;
  color: var(--text-muted);
}

.page-about .about-data__step-num {
  display: block;
  margin-bottom: var(--space-2);
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-red);
}

.page-about .about-data__details {
  margin: var(--space-4) 0;
  background: var(--bg-card);
  border: 1px solid var(--line-color);
  border-radius: var(--radius);
}

.page-about .about-data__details summary {
  padding: var(--space-3) var(--space-4);
  cursor: pointer;
  font-weight: 700;
  color: var(--color-night);
}

.page-about .about-data__details summary:focus-visible {
  outline: 2px dashed var(--color-gold);
  outline-offset: 2px;
}

.page-about .about-data__details-body {
  padding: 0 var(--space-4) var(--space-4);
}

.page-about .about-data__details-body ul {
  display: grid;
  gap: var(--space-2);
  margin: 0;
  padding-left: var(--space-4);
}

.page-about .about-data__details-body li {
  line-height: 1.7;
  color: var(--text-muted);
}

.page-about .about-team__grid {
  display: grid;
  gap: var(--space-5);
  align-items: center;
}

.page-about .about-team__copy p {
  max-width: 68ch;
  margin: 0 0 var(--space-3);
  line-height: 1.8;
}

.page-about .about-team__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  padding: 0;
  margin: var(--space-5) 0;
  list-style: none;
}

.page-about .about-team__stats li {
  padding: var(--space-3);
  background: var(--bg-deep);
  color: var(--color-mist);
}

.page-about .about-team__stats strong {
  display: block;
  font-family: var(--font-head);
  font-size: 1.6rem;
  color: var(--color-gold);
}

.page-about .about-team__stats span {
  font-size: 0.85rem;
  color: rgba(245, 240, 230, 0.72);
}

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

.page-about .about-team__media {
  margin: 0;
}

.page-about .about-team__media img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 360px;
  object-fit: cover;
  object-position: center;
  box-shadow: var(--shadow-2);
}

.page-about .about-credential {
  display: flex;
  gap: var(--space-4);
  align-items: center;
  margin-top: var(--space-5);
  padding: var(--space-4);
  background: rgba(212, 160, 23, 0.08);
  border: 1px solid var(--color-gold);
}

.page-about .about-credential__badge {
  flex: 0 0 auto;
  padding: 4px 8px;
  background: var(--color-gold);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-night);
}

.page-about .about-credential p {
  margin: 0;
  line-height: 1.7;
  color: var(--text-body);
}

.page-about .about-brand__prose p {
  max-width: 72ch;
  margin: 0;
  line-height: 1.8;
}

.page-about .about-brand__visual {
  display: grid;
  gap: var(--space-5);
  align-items: center;
  margin: var(--space-5) 0;
}

.page-about .about-brand__symbol {
  position: relative;
  height: 180px;
  overflow: hidden;
  background: var(--bg-deep);
  border-radius: var(--radius);
}

.page-about .about-brand__wing {
  position: absolute;
  top: 50%;
  width: 120px;
  height: 64px;
  background: linear-gradient(135deg, var(--color-gold), var(--color-red));
  transform: translateY(-50%) rotate(-12deg);
  clip-path: polygon(0 50%, 30% 0, 100% 20%, 75% 80%, 10% 100%);
}

.page-about .about-brand__wing--left {
  left: 20%;
}

.page-about .about-brand__wing--right {
  right: 20%;
  transform: translateY(-50%) rotate(-12deg) scaleX(-1);
}

.page-about .about-brand__core {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 28px;
  height: 28px;
  background: var(--color-orange);
  border-radius: 50%;
  box-shadow: 0 0 32px rgba(255, 107, 53, 0.7);
  transform: translate(-50%, -50%);
}

.page-about .about-brand__palette {
  display: grid;
  gap: var(--space-2);
  padding: 0;
  margin: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-body);
}

.page-about .about-brand__palette li {
  display: flex;
  gap: var(--space-2);
  align-items: center;
}

.page-about .about-brand__swatch {
  display: inline-block;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  border: 1px solid rgba(26, 26, 46, 0.35);
}

.page-about .about-brand__swatch--gold {
  background: #D4A017;
}

.page-about .about-brand__swatch--red {
  background: #E34234;
}

.page-about .about-brand__swatch--night {
  background: #1A1A2E;
}

.page-about .about-brand__swatch--orange {
  background: #FF6B35;
}

.page-about .about-brand__principles {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-5);
}

.page-about .about-brand__principles article {
  padding-left: var(--space-4);
  border-left: 2px solid var(--color-gold);
}

.page-about .about-brand__principles article > span {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-red);
}

.page-about .about-brand__principles h3 {
  margin: var(--space-1) 0 var(--space-2);
  font-family: var(--font-head);
  font-size: 1.05rem;
  color: var(--color-night);
}

.page-about .about-brand__principles p {
  margin: 0;
  line-height: 1.7;
  color: var(--text-muted);
}

@media (min-width: 720px) {
  .page-about .about-mission__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-data__workflow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-brand__visual {
    grid-template-columns: minmax(0, 1fr) 260px;
  }

  .page-about .about-brand__principles {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1fr) 420px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.7fr);
  }
}

@media (min-width: 960px) {
  .page-about .about-layout {
    grid-template-columns: var(--about-toc-width) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-toc {
    position: sticky;
    top: calc(var(--topbar-height) + var(--space-4));
    max-height: calc(100vh - var(--topbar-height) - var(--space-6));
    overflow: auto;
  }
}

@media (min-width: 900px) {
  .page-about .about-timeline::before {
    left: 50%;
    transform: translateX(-1px);
  }

  .page-about .about-timeline__item {
    width: 50%;
    padding-left: 0;
    padding-right: 44px;
  }

  .page-about .about-timeline__item:nth-child(even) {
    margin-left: 50%;
    padding-right: 0;
    padding-left: 44px;
  }

  .page-about .about-timeline__dot {
    right: -9px;
    left: auto;
  }

  .page-about .about-timeline__item:nth-child(even) .about-timeline__dot {
    right: auto;
    left: -9px;
  }
}