.page-about {
  --about-num-w: 5.5rem;
  background: var(--bg);
  color: var(--ink);
  padding-bottom: clamp(2.5rem, 7vw, 5rem);
}

.page-about .about-crumb {
  padding-top: clamp(1.25rem, 3.5vw, 2.25rem);
}

.page-about .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-about .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- hero ---------- */

.page-about .about-hero {
  padding: clamp(1.5rem, 4vw, 2.5rem) 0 clamp(1.75rem, 4.5vw, 3rem);
}

.page-about .about-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-about .about-hero-title {
  margin: 0.55rem 0 0;
  font-size: clamp(2.1rem, 6.2vw, 4.5rem);
  line-height: 1.14;
  letter-spacing: 0.025em;
  font-weight: 800;
}

.page-about .about-accent {
  display: inline-block;
  color: var(--cyan);
}

.page-about .about-hero-main .lede {
  margin: clamp(1rem, 2.5vw, 1.5rem) 0 0;
  max-width: 44rem;
  color: var(--muted);
  line-height: 1.8;
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: clamp(1.25rem, 3vw, 1.9rem);
}

.page-about .about-hero-side {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-dim);
  border: 1px solid var(--line-dim);
  align-self: start;
}

.page-about .about-fact {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.95rem 0.9rem 1.1rem;
  background: var(--surface);
}

.page-about .about-fact-num {
  font-family: var(--font-mono);
  font-size: clamp(1.1rem, 2.6vw, 1.4rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

.page-about .about-fact-label {
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--muted);
}

.page-about .about-hero-figure {
  margin: 0;
  border: 1px solid var(--line-dim);
  background: var(--surface);
}

.page-about .about-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1400 / 800;
  object-fit: cover;
}

.page-about .about-hero-figure figcaption {
  padding: 0.85rem 1.05rem;
  border-top: 1px solid var(--line-dim);
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- timeline sections ---------- */

.page-about .about-section {
  border-top: 1px solid var(--line-dim);
  padding: clamp(2.1rem, 5.5vw, 4rem) 0;
}

.page-about .about-section:first-child {
  border-top: 1px solid var(--line-dim);
  margin-top: clamp(1.75rem, 4.5vw, 3rem);
}

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

.page-about .about-num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.75rem, 4.5vw, 2.6rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--surface-2);
  -webkit-text-stroke: 1px var(--line);
  font-variant-numeric: tabular-nums;
}

.page-about .about-content h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.4rem, 3.2vw, 2.1rem);
  line-height: 1.28;
  letter-spacing: 0.03em;
  font-weight: 800;
}

.page-about .about-content p {
  margin: 0 0 1.05rem;
  max-width: 46rem;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .about-content p:first-of-type {
  color: var(--ink);
}

.page-about .about-content a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 243, 214, 0.4);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-about .about-content a:hover,
.page-about .about-content a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- svg structure ---------- */

.page-about .about-svg {
  display: block;
  width: 100%;
  height: auto;
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
  border: 1px solid var(--line-dim);
}

/* ---------- crew cards ---------- */

.page-about .about-crews {
  list-style: none;
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line-dim);
  border: 1px solid var(--line-dim);
}

.page-about .about-crew {
  position: relative;
  padding: 1.25rem 1.1rem 1.4rem;
  background: var(--surface);
  transition: background var(--dur) var(--ease);
}

.page-about .about-crew::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  transform: scaleX(0.22);
  transform-origin: left center;
  background: var(--cyan);
  transition: transform var(--dur) var(--ease);
}

.page-about .about-crew[data-state="updating"]::before {
  background: var(--orange);
}

.page-about .about-crew:hover,
.page-about .about-crew:focus-within {
  background: var(--surface-2);
}

.page-about .about-crew:hover::before,
.page-about .about-crew:focus-within::before {
  transform: scaleX(1);
}

.page-about .about-crew h3 {
  margin: 0 0 0.6rem;
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-about .about-crew p {
  margin: 0;
  max-width: none;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .about-crew-tag {
  display: inline-block;
  margin-top: 0.85rem;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  border: 1px solid var(--line-dim);
  padding: 0.2rem 0.5rem;
}

/* ---------- aside ---------- */

.page-about .about-aside {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.page-about .about-aside-figure {
  margin: 0;
  border: 1px solid var(--line-dim);
  background: var(--surface);
}

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

.page-about .about-aside-note {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- weekly table ---------- */

.page-about .about-week-wrap {
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
  border: 1px solid var(--line-dim);
  overflow-x: auto;
}

.page-about .about-week {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.page-about .about-week caption {
  padding: 0.85rem 1rem;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  background: var(--surface);
  border-bottom: 1px solid var(--line-dim);
}

.page-about .about-week th,
.page-about .about-week td {
  padding: 0.8rem 1rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line-dim);
  line-height: 1.65;
}

.page-about .about-week thead th {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--muted);
  background: var(--surface);
}

.page-about .about-week tbody th {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--ink);
  white-space: nowrap;
}

.page-about .about-week tbody td {
  color: var(--muted);
}

.page-about .about-week tbody tr:nth-child(odd) {
  background: rgba(28, 36, 56, 0.4);
}

.page-about .about-week tbody tr {
  transition: background var(--dur) var(--ease);
}

.page-about .about-week tbody tr:hover {
  background: var(--surface-2);
}

.page-about .about-week tbody tr:last-child th,
.page-about .about-week tbody tr:last-child td {
  border-bottom: 0;
}

.page-about .about-chip {
  display: inline-block;
  margin-right: 0.45rem;
  padding: 0.12rem 0.42rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--orange);
  border: 1px solid rgba(255, 138, 61, 0.45);
  white-space: nowrap;
}

/* ---------- cadence list ---------- */

.page-about .about-cadence {
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line-dim);
  border: 1px solid var(--line-dim);
}

.page-about .about-cadence-item {
  background: var(--surface);
  padding: 1rem 1.1rem 1.15rem;
}

.page-about .about-cadence-item dt {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--cyan);
  margin-bottom: 0.4rem;
}

.page-about .about-cadence-item dd {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- local list ---------- */

.page-about .about-local-list {
  list-style: none;
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
  padding: 0;
  border-top: 1px solid var(--line-dim);
}

.page-about .about-local-list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.35rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--line-dim);
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .about-local-key {
  font-size: 0.73rem;
  letter-spacing: 0.1em;
  color: var(--muted);
}

/* ---------- cooperation ---------- */

.page-about .about-coop {
  list-style: none;
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line-dim);
  border: 1px solid var(--line-dim);
}

.page-about .about-coop-item {
  background: var(--surface);
  padding: 1.3rem 1.15rem 1.5rem;
  border-left: 2px solid transparent;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-about .about-coop-item:hover,
.page-about .about-coop-item:focus-within {
  background: var(--surface-2);
  border-left-color: var(--orange);
}

.page-about .about-coop-item h3 {
  margin: 0 0 0.6rem;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-about .about-coop-item p {
  margin: 0;
  max-width: none;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-about .about-coop-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: clamp(1.4rem, 3.5vw, 2rem) 0 0;
}

/* ---------- responsive ---------- */

@media (min-width: 640px) {
  .page-about .about-hero-side {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-local-list li {
    grid-template-columns: 6.5rem minmax(0, 1fr);
    gap: 0.9rem;
  }

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

@media (min-width: 900px) {
  .page-about .about-row {
    grid-template-columns: var(--about-num-w) minmax(0, 44rem);
    gap: clamp(1.5rem, 4vw, 3.5rem);
    align-items: start;
  }

  .page-about .about-row--split {
    grid-template-columns: var(--about-num-w) minmax(0, 1fr) minmax(220px, 300px);
    gap: clamp(1.5rem, 3.5vw, 3rem);
  }

  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(230px, 300px);
    align-items: end;
    gap: clamp(2rem, 5vw, 4.5rem);
  }

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

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

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

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

@media (min-width: 1180px) {
  .page-about .about-content p {
    font-size: 1.03rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-crew::before,
  .page-about .about-crew,
  .page-about .about-week tbody tr,
  .page-about .about-coop-item,
  .page-about .breadcrumb a,
  .page-about .about-content a {
    transition: none;
  }
}