.page-about {
  --about-rule: 3px solid var(--ink);
  --about-shadow: 8px 8px 0 var(--ink);
  --about-shadow-sm: 5px 5px 0 var(--ink);
}

/* ---------- breadcrumb spacing ---------- */
.page-about .breadcrumb {
  margin: 20px 0 0;
}

/* ---------- hero ---------- */
.page-about .about-hero {
  position: relative;
  padding: 26px 0 52px;
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}

.page-about .about-hero__stamp {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--teal);
  border: 2px solid var(--teal);
  border-radius: 999px;
  padding: 5px 12px;
  margin: 0 0 18px;
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 40px;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0 0 18px;
}

.page-about .about-hero__accent {
  color: var(--teal);
  position: relative;
  display: inline-block;
}

.page-about .about-hero__accent::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 10px;
  background: var(--gold);
  opacity: 0.45;
  border-radius: 3px;
  z-index: -1;
}

.page-about .about-hero__lead {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink);
  max-width: 38em;
  margin: 0 0 26px;
}

.page-about .about-hero__facts {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 26px;
}

.page-about .about-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-left: var(--about-rule);
  padding-left: 12px;
}

.page-about .about-hero__num {
  font-size: 28px;
  font-weight: 600;
  color: var(--purple);
  line-height: 1;
}

.page-about .about-hero__facts li > span:last-child {
  font-size: 13px;
  color: var(--indigo-mid);
  letter-spacing: 0.02em;
}

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

.page-about .about-hero__media {
  border: var(--about-rule);
  box-shadow: var(--about-shadow);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--indigo);
  margin: 0;
}

.page-about .about-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 9 / 7;
}

.page-about .about-hero__media .media__caption {
  font-size: 12px;
  padding: 10px 14px;
  background: var(--indigo-mid);
  color: var(--paper);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* ---------- index bar ---------- */
.page-about .index-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 14px 0;
  border-top: var(--about-rule);
  border-bottom: var(--about-rule);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-about .index-bar__item {
  color: var(--indigo-mid);
}

.page-about .index-bar__dot {
  color: var(--gold);
}

.page-about .index-bar__link {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 2px solid var(--gold);
  padding-bottom: 1px;
}

.page-about .index-bar__link:hover,
.page-about .index-bar__link:focus-visible {
  color: var(--purple);
}

/* ---------- shared section rhythm ---------- */
.page-about .section {
  padding: 56px 0;
}

.page-about .section__kicker {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--teal);
  margin: 0 0 10px;
}

.page-about .section__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 28px;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 14px;
}

/* ---------- intro ---------- */
.page-about .about-intro {
  padding-top: 48px;
}

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

.page-about .about-intro__body p {
  margin: 0 0 16px;
}

.page-about .about-intro__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .about-intro__item {
  border: var(--about-rule);
  border-radius: var(--radius-sm);
  box-shadow: var(--about-shadow-sm);
  background: var(--paper);
  padding: 18px 18px 20px;
}

.page-about .about-intro__item:nth-child(1) { background: #EAF6F3; }
.page-about .about-intro__item:nth-child(2) { background: #FBF3DF; }
.page-about .about-intro__item:nth-child(3) { background: #EFEBFA; }

.page-about .about-intro__idx {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink);
  background: var(--gold);
  border: 2px solid var(--ink);
  border-radius: 6px;
  padding: 1px 8px;
  margin-bottom: 10px;
}

.page-about .about-intro__item h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  margin: 0 0 8px;
  color: var(--ink);
}

.page-about .about-intro__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--indigo-mid);
}

/* ---------- taxonomy ---------- */
.page-about .about-taxonomy {
  background: linear-gradient(180deg, var(--paper) 0%, #EDE9DE 100%);
}

.page-about .about-taxonomy__intro {
  font-size: 16px;
  line-height: 1.75;
  color: var(--indigo-mid);
  max-width: 44em;
  margin: 0;
}

.page-about .about-taxonomy__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 30px 0 34px;
}

.page-about .about-tax__cell {
  position: relative;
  border: var(--about-rule);
  border-radius: var(--radius-sm);
  padding: 16px 14px 18px;
  min-height: 104px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 6px;
  color: var(--paper);
  transition: transform var(--dur) ease, box-shadow var(--dur) ease;
}

.page-about .about-tax__cell:hover,
.page-about .about-tax__cell:focus-within {
  transform: translate(-2px, -2px);
  box-shadow: var(--about-shadow-sm);
}

.page-about .about-tax__cell--teal { background: var(--teal); }
.page-about .about-tax__cell--gold { background: var(--gold); color: var(--ink); }
.page-about .about-tax__cell--purple { background: var(--purple); }
.page-about .about-tax__cell--indigo { background: var(--indigo-mid); }

.page-about .about-tax__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.01em;
}

.page-about .about-tax__desc {
  font-size: 13px;
  line-height: 1.55;
  opacity: 0.92;
}

.page-about .about-taxonomy__note {
  border-top: var(--about-rule);
  padding-top: 24px;
}

.page-about .about-taxonomy__note-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  margin: 0 0 18px;
  color: var(--ink);
}

.page-about .about-taxonomy__note-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-about .about-taxonomy__note-item {
  background: var(--paper);
  border: 2px solid var(--ink);
  border-left: 8px solid var(--gold);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
}

.page-about .about-taxonomy__note-item p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--indigo-mid);
}

/* ---------- flow ---------- */
.page-about .about-flow {
  background: var(--indigo);
  color: var(--paper);
}

.page-about .about-flow .section__title,
.page-about .about-flow .section__kicker {
  color: var(--paper);
}

.page-about .about-flow .section__kicker {
  color: var(--teal-bright);
}

.page-about .about-flow__intro {
  font-size: 16px;
  line-height: 1.75;
  color: var(--grey);
  max-width: 44em;
  margin: 0;
}

.page-about .about-flow__stage {
  position: relative;
  margin: 30px 0 26px;
  border: var(--about-rule);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--indigo-mid);
}

.page-about .about-flow__bg {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0.24;
  pointer-events: none;
}

.page-about .about-flow__bg img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-about .about-flow__steps {
  position: relative;
  padding: 22px 18px 26px;
}

.page-about .about-flow__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.page-about .about-flow .filter-btn {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  background: transparent;
  color: var(--paper);
  border: 2px solid var(--teal-bright);
  border-radius: 999px;
  padding: 7px 18px;
  cursor: pointer;
  transition: background var(--dur) ease, color var(--dur) ease;
}

.page-about .about-flow .filter-btn[aria-pressed="true"] {
  background: var(--teal-bright);
  color: var(--ink);
  border-color: var(--teal-bright);
}

.page-about .about-flow__panels {
  display: grid;
  gap: 14px;
}

.page-about .about-flow__panel {
  background: rgba(10, 15, 38, 0.72);
  border: 2px solid var(--teal);
  border-left: 8px solid var(--gold);
  border-radius: var(--radius-sm);
  padding: 18px 18px 20px;
}

.page-about .about-flow__panel[hidden] {
  display: none;
}

.page-about .about-flow__stepno {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
  margin: 0 0 8px;
}

.page-about .about-flow__panel h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  margin: 0 0 10px;
  color: var(--paper);
}

.page-about .about-flow__panel p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--grey);
}

.page-about .about-flow__quote {
  border: var(--about-rule);
  border-color: var(--gold);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  background: rgba(232, 182, 76, 0.08);
}

.page-about .about-flow__quote p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper);
}

/* ---------- team ---------- */
.page-about .about-team__grid {
  align-items: start;
  gap: 30px;
}

.page-about .about-team__body .prose p {
  margin: 0 0 16px;
}

.page-about .about-team__list {
  list-style: none;
  margin: 24px 0 22px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-team__list li {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: 12px;
  border: 2px solid var(--ink);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  background: var(--paper);
}

.page-about .about-team__tag {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--paper);
  background: var(--purple);
  border-radius: 6px;
  padding: 3px 9px;
  white-space: nowrap;
}

.page-about .about-team__list li p {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--indigo-mid);
}

.page-about .about-team__link {
  font-size: 15px;
  line-height: 1.75;
  color: var(--indigo-mid);
  border-top: 2px dashed var(--grey);
  padding-top: 16px;
  margin: 0;
}

.page-about .about-team__link a {
  color: var(--teal);
  font-weight: 600;
}

.page-about .about-team__media {
  border: var(--about-rule);
  box-shadow: var(--about-shadow);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--paper);
  margin: 0;
}

.page-about .about-team__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.page-about .about-team__media .media__caption {
  font-size: 12px;
  font-family: var(--font-mono);
  padding: 10px 14px;
  background: var(--gold);
  color: var(--ink);
}

/* ---------- timeline ---------- */
.page-about .about-timeline {
  background: #EDE9DE;
}

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

.page-about .about-timeline__rail {
  border: var(--about-rule);
  border-radius: var(--radius);
  background: var(--indigo);
  padding: 18px 16px 20px;
}

.page-about .about-timeline__railtitle {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--teal-bright);
  margin: 0 0 16px;
}

.page-about .about-timeline__list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  display: grid;
  gap: 14px;
}

.page-about .about-timeline__list::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 6px;
  bottom: 6px;
  width: 3px;
  background: var(--indigo-mid);
  border-radius: 2px;
}

.page-about .about-timeline__node {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: 16px;
  align-items: center;
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  padding: 6px 6px 6px 0;
  cursor: pointer;
  color: var(--paper);
}

.page-about .about-timeline__dot {
  grid-row: 1 / span 2;
  width: 21px;
  height: 21px;
  background: var(--gold);
  border: 3px solid var(--ink);
  border-radius: 4px;
  transition: background var(--dur) ease, transform var(--dur) ease;
}

.page-about .about-timeline__node[aria-expanded="true"] .about-timeline__dot {
  background: var(--teal-bright);
  transform: translateX(4px);
}

.page-about .about-timeline__year {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--teal-bright);
}

.page-about .about-timeline__name {
  grid-column: 2;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
}

.page-about .about-timeline__node:hover .about-timeline__name,
.page-about .about-timeline__node:focus-visible .about-timeline__name {
  color: var(--gold);
}

.page-about .about-timeline__panels {
  display: grid;
  gap: 16px;
}

.page-about .about-timeline__panel {
  background: var(--paper);
  border: var(--about-rule);
  border-radius: var(--radius-sm);
  box-shadow: var(--about-shadow-sm);
  padding: 20px 20px 22px;
}

.page-about .about-timeline__panel[hidden] {
  display: none;
}

.page-about .about-timeline__panel h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  color: var(--ink);
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--gold);
}

.page-about .about-timeline__panel p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--indigo-mid);
}

/* ---------- feedback band ---------- */
.page-about .about-feedback {
  padding: 56px 0;
}

.page-about .about-feedback__band {
  border: var(--about-rule);
  border-radius: var(--radius);
  box-shadow: var(--about-shadow);
  overflow: hidden;
}

.page-about .about-feedback__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding: 28px 22px 30px;
}

.page-about .about-feedback__kicker {
  color: var(--teal-bright);
}

.page-about .about-feedback__title {
  color: var(--paper);
}

.page-about .about-feedback__prose p {
  color: var(--grey);
  margin: 0 0 14px;
}

.page-about .about-feedback__prose a {
  color: var(--teal-bright);
}

.page-about .about-feedback__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.page-about .about-feedback__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  align-content: start;
}

.page-about .about-feedback__stat {
  border: 2px solid var(--teal);
  border-radius: var(--radius-sm);
  padding: 14px 12px;
  background: rgba(14, 124, 123, 0.16);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-about .about-feedback__statnum {
  font-size: 22px;
  font-weight: 600;
  color: var(--gold);
  line-height: 1.1;
}

.page-about .about-feedback__statlabel {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--grey);
}

/* ---------- closing ---------- */
.page-about .about-close {
  padding: 20px 0 64px;
}

.page-about .about-close__box {
  border: var(--about-rule);
  border-radius: var(--radius);
  box-shadow: var(--about-shadow);
  background: var(--paper);
  padding: 26px 22px 28px;
  text-align: left;
}

.page-about .about-close__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 24px;
  color: var(--ink);
  margin: 0 0 12px;
}

.page-about .about-close__text {
  font-size: 16px;
  line-height: 1.75;
  color: var(--indigo-mid);
  margin: 0 0 20px;
}

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

/* ---------- motion ---------- */
.page-about [data-reveal] {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--dur) ease, transform var(--dur) ease;
}

.page-about [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-about [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-about .about-tax__cell {
    transition: none;
  }
}

/* ---------- tablet ---------- */
@media (min-width: 640px) {
  .page-about .about-taxonomy__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .about-taxonomy__note-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .about-feedback__inner {
    padding: 34px 30px 36px;
  }
  .page-about .about-close__box {
    padding: 34px 32px 36px;
  }
}

/* ---------- desktop ---------- */
@media (min-width: 960px) {
  .page-about .about-hero {
    padding: 34px 0 68px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: 44px;
    align-items: center;
  }

  .page-about .about-hero__title {
    font-size: 60px;
  }

  .page-about .section {
    padding: 76px 0;
  }

  .page-about .section__title {
    font-size: 34px;
  }

  .page-about .about-intro__grid {
    grid-template-columns: 5fr 7fr;
    gap: 46px;
  }

  .page-about .about-intro__list {
    grid-template-columns: 1fr;
  }

  .page-about .about-tax__cell {
    min-height: 128px;
    padding: 20px 18px 22px;
  }

  .page-about .about-team__grid {
    grid-template-columns: 7fr 5fr;
    gap: 46px;
  }

  .page-about .about-timeline__layout {
    grid-template-columns: 3fr 9fr;
    gap: 34px;
    align-items: start;
  }

  .page-about .about-timeline__rail {
    position: sticky;
    top: calc(var(--header-h) + 20px);
    padding: 22px 20px 24px;
  }

  .page-about .about-flow__steps {
    padding: 30px 30px 34px;
  }

  .page-about .about-flow__panels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-about .about-feedback__inner {
    grid-template-columns: 7fr 5fr;
    gap: 40px;
    padding: 42px 40px 44px;
  }

  .page-about .about-close__box {
    padding: 42px 46px 44px;
  }

  .page-about .about-close__title {
    font-size: 30px;
  }
}

@media (min-width: 1200px) {
  .page-about .about-hero__title {
    font-size: 72px;
  }
}