.page-about {
  --about-stripe: repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.04) 0 2px, transparent 2px 12px);
  background: var(--c-bg);
}

.page-about img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-about #mission,
.page-about #history,
.page-about #credentials,
.page-about #team {
  scroll-margin-top: 140px;
}

.page-about .about-hero {
  position: relative;
  padding: 40px 0 48px;
  background: linear-gradient(180deg, #ffffff 0%, var(--c-bg) 100%);
  border-bottom: 1px solid var(--c-line);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--c-red) 0 20%, var(--c-accent) 0 40%, var(--c-yellow) 0 60%, var(--c-green) 0 80%, var(--c-cyan) 0 100%);
  z-index: 1;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  top: 40px;
  right: -2px;
  bottom: 40px;
  width: 10px;
  border-right: 2px solid var(--c-line);
  border-top: 2px solid var(--c-line);
  border-bottom: 2px solid var(--c-line);
  border-radius: 0 6px 6px 0;
  opacity: 0.55;
}

.page-about .about-hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .about-hero-side {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
  justify-content: flex-end;
}

.page-about .about-hero-main h1 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(1.75rem, 4vw, 3.1rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--c-ink);
  margin: 0 0 18px;
  border-left: 5px solid var(--c-accent);
  padding-left: 18px;
  max-width: 20em;
}

.page-about .about-hero-lead {
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-muted);
  max-width: 46em;
  margin: 0 0 20px;
}

.page-about .about-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

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

.page-about .about-section {
  padding: 48px 0;
}

.page-about .about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-about .about-grid-aside,
.page-about .about-history-side {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-about .about-section-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--c-primary);
  background: rgba(30, 90, 168, 0.08);
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.page-about .about-section-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  line-height: 1.2;
  color: var(--c-ink);
  margin: 0 0 10px;
}

.page-about .about-aside-hint {
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-muted);
  margin: 0;
}

.page-about .about-mission {
  background: var(--c-white);
}

.page-about .about-mission-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .about-mission-copy p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-ink);
  margin: 0 0 16px;
}

.page-about .about-mission-copy p:last-child {
  margin-bottom: 0;
}

.page-about .about-mission-img-block {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
}

.page-about .about-mission-img-block img {
  width: 100%;
  object-fit: cover;
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 0 100%);
  transition: transform var(--dur) ease-out;
}

.page-about .about-mission-img-block:hover img {
  transform: scale(1.02);
}

.page-about .about-mission-img-block figcaption {
  position: absolute;
  right: 16px;
  bottom: 16px;
  left: 16px;
  background: rgba(15, 23, 42, 0.78);
  color: var(--c-white);
  font-size: 13px;
  line-height: 1.5;
  padding: 10px 14px;
  border-radius: 4px;
  transform: translateY(8px);
  opacity: 0.75;
  transition: opacity var(--dur) ease-out, transform var(--dur) ease-out;
}

.page-about .about-mission-img-block:hover figcaption,
.page-about .about-mission-img-block:focus-within figcaption {
  transform: translateY(0);
  opacity: 1;
}

.page-about .about-metrics {
  position: relative;
  background: var(--about-stripe), var(--c-primary);
  color: var(--c-white);
  padding: 44px 0 52px;
}

.page-about .about-metrics-strip {
  display: flex;
  gap: 4px;
  margin-bottom: 28px;
}

.page-about .about-metrics-strip span {
  height: 4px;
  flex: 1;
  transform: skewX(-24deg);
  border-radius: 2px;
}

.page-about .about-strip--red {
  background: var(--c-red);
}

.page-about .about-strip--orange {
  background: var(--c-accent);
}

.page-about .about-strip--yellow {
  background: var(--c-yellow);
}

.page-about .about-strip--green {
  background: var(--c-green);
}

.page-about .about-strip--purple {
  background: var(--c-purple);
}

.page-about .about-metrics-head {
  margin-bottom: 12px;
}

.page-about .about-metrics-head h2 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  line-height: 1.2;
  margin: 0 0 6px;
}

.page-about .about-metrics-head p {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.75);
  margin: 0 0 24px;
}

.page-about .about-metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px 16px;
  padding: 26px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.page-about .about-metric {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-metric-value {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--c-white);
}

.page-about .about-metric-plus {
  font-size: 0.55em;
  margin-left: 2px;
}

.page-about .about-metric:nth-child(1) .about-metric-value {
  color: var(--c-white);
}

.page-about .about-metric:nth-child(2) .about-metric-value {
  color: var(--c-accent);
}

.page-about .about-metric:nth-child(3) .about-metric-value {
  color: #67E8F9;
}

.page-about .about-metric:nth-child(4) .about-metric-value {
  color: #6EE7B7;
}

.page-about .about-metric-label {
  font-size: 14px;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.72);
}

.page-about .about-history {
  background: var(--c-bg);
}

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

.page-about .about-history-nav {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 2px 20px;
}

.page-about .about-history-nav a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  font-size: 14px;
  font-weight: 500;
  color: var(--c-muted);
  text-decoration: none;
  border-bottom: 1px dashed var(--c-line);
  transition: color var(--dur) ease-out, padding-left var(--dur) ease-out;
}

.page-about .about-history-nav a i {
  font-style: normal;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 12px;
  color: var(--c-primary);
}

.page-about .about-history-nav a:hover,
.page-about .about-history-nav a:focus-visible {
  color: var(--c-primary);
  padding-left: 6px;
}

.page-about .about-timeline {
  position: relative;
  padding: 0;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 7px;
  width: 2px;
  background: repeating-linear-gradient(to bottom, var(--c-line) 0 4px, transparent 4px 8px);
}

.page-about .about-milestone {
  position: relative;
  margin: 0 0 18px;
  padding: 0 0 22px 36px;
  border-bottom: 1px solid var(--c-line);
}

.page-about .about-milestone:last-child {
  border-bottom: 0;
}

.page-about .about-milestone summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
}

.page-about .about-milestone summary::-webkit-details-marker {
  display: none;
}

.page-about .about-milestone-mark {
  position: absolute;
  left: 0;
  top: 0;
  width: 24px;
  height: 32px;
  display: inline-flex;
  transition: transform var(--dur) ease-out;
}

.page-about .about-milestone[open] .about-milestone-mark {
  transform: translateX(3px);
}

.page-about .about-milestone-heading {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.page-about .about-milestone-heading strong {
  font-size: 12px;
  letter-spacing: 0.08em;
  font-weight: 600;
  color: var(--c-muted);
}

.page-about .about-milestone-heading span {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.3;
  color: var(--c-ink);
  transition: color var(--dur) ease-out;
}

.page-about .about-milestone[open] .about-milestone-heading span {
  color: var(--c-primary);
}

.page-about .about-milestone-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: 1px solid var(--c-line);
  border-radius: 50%;
  color: var(--c-primary);
  font-size: 16px;
  font-weight: 400;
  line-height: 1;
  background: var(--c-white);
  transition: transform var(--dur) ease-out, border-color var(--dur) ease-out, color var(--dur) ease-out;
}

.page-about .about-milestone[open] .about-milestone-arrow {
  transform: rotate(45deg);
  border-color: var(--c-accent);
  color: var(--c-accent);
}

.page-about .about-milestone-detail {
  display: none;
  margin-top: 12px;
  padding: 16px 20px;
  background: var(--c-white);
  border-left: 4px solid var(--c-primary);
  border-radius: 0 8px 8px 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-muted);
}

.page-about .about-milestone-detail p {
  margin: 0 0 10px;
}

.page-about .about-milestone-detail p:last-child {
  margin-bottom: 0;
}

.page-about .about-milestone[open] .about-milestone-detail {
  display: block;
}

.page-about .about-history-figure {
  margin: 40px 0 0;
  position: relative;
}

.page-about .about-history-figure img {
  width: 100%;
  object-fit: cover;
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
}

.page-about .about-history-figure figcaption {
  margin-top: 12px;
  font-size: 13px;
  color: var(--c-muted);
  padding-left: 14px;
  border-left: 3px solid var(--c-green);
}

.page-about .about-credentials {
  background: var(--c-white);
}

.page-about .about-credential-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-about .about-credential-item {
  position: relative;
  background: var(--c-bg);
  border-radius: var(--radius);
  padding: 24px 28px;
  border-left: 6px solid var(--c-primary);
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.05);
}

.page-about .about-credential-item:nth-child(2) {
  border-left-color: var(--c-green);
}

.page-about .about-credential-item:nth-child(3) {
  border-left-color: var(--c-accent);
}

.page-about .about-credential-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--c-primary);
  background: rgba(30, 90, 168, 0.08);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.page-about .about-credential-item:nth-child(2) .about-credential-tag {
  color: var(--c-green);
  background: rgba(16, 185, 129, 0.1);
}

.page-about .about-credential-item:nth-child(3) .about-credential-tag {
  color: var(--c-accent);
  background: rgba(245, 158, 11, 0.12);
}

.page-about .about-credential-item h3 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 20px;
  line-height: 1.3;
  color: var(--c-ink);
  margin: 0 0 10px;
}

.page-about .about-credential-item p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-muted);
  margin: 0;
}

.page-about .about-credentials-note {
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-muted);
  margin: 24px 0 0;
  padding: 16px 20px;
  background: rgba(139, 92, 246, 0.06);
  border-radius: var(--radius);
}

.page-about .about-credentials-note a {
  color: var(--c-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 500;
}

.page-about .about-team {
  background: var(--c-bg);
}

.page-about .about-team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: 32px;
}

.page-about .about-team-role {
  background: var(--c-white);
  padding: 24px 26px;
  border-top: 3px solid var(--c-primary);
  border-radius: 0 0 var(--radius) var(--radius);
  transition: box-shadow var(--dur) ease-out, transform var(--dur) ease-out;
}

.page-about .about-team-role:nth-child(2) {
  border-top-color: var(--c-accent);
}

.page-about .about-team-role:nth-child(3) {
  border-top-color: var(--c-green);
}

.page-about .about-team-role:nth-child(4) {
  border-top-color: var(--c-purple);
}

.page-about .about-team-role:hover {
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
  transform: translateY(-2px);
}

.page-about .about-team-role h3 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.3;
  color: var(--c-ink);
  margin: 0 0 8px;
}

.page-about .about-team-role p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-muted);
  margin: 0;
}

.page-about .about-team-figure {
  position: relative;
  margin: 32px 0 0;
}

.page-about .about-team-figure::before {
  content: "";
  position: absolute;
  top: -14px;
  left: -14px;
  width: 72px;
  height: 72px;
  background: repeating-linear-gradient(135deg, var(--c-accent) 0 5px, transparent 5px 10px);
  border-radius: 4px;
  z-index: 0;
}

.page-about .about-team-figure img {
  position: relative;
  z-index: 1;
  width: 100%;
  object-fit: cover;
  border-radius: var(--radius);
}

.page-about .about-team-figure figcaption {
  font-size: 13px;
  color: var(--c-muted);
  margin-top: 12px;
  padding-left: 14px;
  border-left: 3px solid var(--c-accent);
}

.page-about .about-team-cta {
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-muted);
  margin: 28px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--c-line);
}

.page-about .about-team-cta a {
  color: var(--c-primary);
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 2px;
}

@media (min-width: 640px) {
  .page-about .about-metrics-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
  }

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

  .page-about .about-mission-layout {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
    gap: 40px;
  }
}

@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 56px 0 64px;
  }

  .page-about .about-hero-inner {
    grid-template-columns: 280px 1fr;
    align-items: end;
    gap: 48px;
  }

  .page-about .about-milestone {
    padding-left: 52px;
  }

  .page-about .about-timeline::before {
    left: 11px;
  }

  .page-about .about-history-figure {
    margin-left: 24px;
  }
}

@media (min-width: 960px) {
  .page-about .about-section {
    padding: 72px 0;
  }

  .page-about .about-grid {
    grid-template-columns: 260px 1fr;
    gap: 64px;
  }

  .page-about .about-history-wrap {
    grid-template-columns: 240px 1fr;
    gap: 56px;
    align-items: start;
  }

  .page-about .about-history-side {
    position: sticky;
    top: 120px;
    align-self: start;
  }

  .page-about .about-history-nav {
    flex-direction: column;
    gap: 0;
  }

  .page-about .about-history-nav a {
    padding: 9px 0;
  }

  .page-about .about-credential-item {
    padding: 30px 36px;
  }
}