.page-about{
  --about-hairline: 1px solid var(--line);
  --about-measure: 36em;
  color: var(--porcelain);
  font-family: var(--font-body);
  background:
    radial-gradient(120% 55% at 92% -8%, rgba(47,227,208,.16), rgba(47,227,208,0) 62%),
    radial-gradient(90% 45% at 0% 10%, rgba(255,182,92,.09), rgba(255,182,92,0) 60%),
    var(--ink);
  padding-bottom: 40px;
}

.page-about .page-shell{
  padding-top: 22px;
}

.page-about .breadcrumb{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--sage);
  margin-bottom: 18px;
}

.page-about .breadcrumb a{
  color: var(--silver);
}

/* ---------- hero ---------- */
.page-about .about-hero{
  display: grid;
  gap: 26px;
  padding: 6px 0 34px;
  border-bottom: var(--about-hairline);
}

.page-about .about-hero h1{
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 8.4vw, 68px);
  line-height: 1.05;
  letter-spacing: -.03em;
  max-width: 15ch;
}

.page-about .about-hero h1 span{
  color: var(--cyan);
}

.page-about .about-hero__lead{
  margin: 16px 0 0;
  max-width: 40em;
  color: var(--silver);
  font-size: 15.5px;
  line-height: 1.85;
}

.page-about .about-hero__links{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-about .about-card{
  background: linear-gradient(158deg, var(--panel), rgba(18,63,85,.78));
  border-radius: var(--r-lg);
  padding: 22px 20px;
}

.page-about .about-card__code{
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-about .about-card__list{
  margin: 0;
  display: grid;
  gap: 2px;
}

.page-about .about-card__list > div{
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(42,74,94,.9);
}

.page-about .about-card__list > div:last-child{
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .about-card__list dt{
  color: var(--sage);
  font-size: 13px;
}

.page-about .about-card__list dd{
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .02em;
  color: var(--porcelain);
  text-align: right;
}

/* ---------- sections ---------- */
.page-about .about-section{
  padding: 44px 0;
  border-bottom: var(--about-hairline);
}

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

.page-about .about-head{
  margin-bottom: 26px;
  max-width: 50em;
}

.page-about .about-head h2{
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 5.4vw, 40px);
  line-height: 1.16;
  letter-spacing: -.02em;
}

.page-about .about-head__note{
  margin: 12px 0 0;
  color: var(--silver);
  font-size: 15px;
  line-height: 1.85;
}

/* ---------- positioning split ---------- */
.page-about .about-split{
  display: grid;
  gap: 26px;
}

.page-about .about-prose h3,
.page-about .about-flow h3,
.page-about .about-topics h3,
.page-about .about-principle h3{
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -.01em;
}

.page-about .about-prose p{
  margin: 14px 0 0;
  color: var(--silver);
  font-size: 15px;
  line-height: 1.85;
  max-width: var(--about-measure);
}

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

.page-about .about-list li{
  position: relative;
  padding-left: 20px;
  color: var(--silver);
  font-size: 15px;
  line-height: 1.8;
}

.page-about .about-list li::before{
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
}

.page-about .about-list strong{
  color: var(--porcelain);
  font-weight: 700;
}

.page-about .about-aside{
  background: linear-gradient(170deg, rgba(12,42,62,.94), rgba(18,63,85,.5));
  border-radius: var(--r-lg);
  padding: 20px 18px;
}

.page-about .about-aside .mono-tag{
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--amber);
  margin: 0 0 14px;
}

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

.page-about .about-entries li{
  display: grid;
  gap: 3px;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(42,74,94,.85);
}

.page-about .about-entries li:last-child{
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .about-entries a{
  color: var(--porcelain);
  font-weight: 700;
  font-size: 15.5px;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
  justify-self: start;
}

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

.page-about .about-entries span{
  color: var(--sage);
  font-size: 13px;
  line-height: 1.6;
}

/* ---------- figures ---------- */
.page-about .about-figure{
  margin: 0 0 28px;
}

.page-about .about-figure img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--r-lg);
  background: var(--panel);
  object-fit: cover;
}

.page-about .about-figure figcaption{
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .09em;
  color: var(--sage);
}

/* ---------- timeline ---------- */
.page-about .about-timeline{
  list-style: none;
  margin: 0;
  padding: 4px 0 4px 38px;
  position: relative;
}

.page-about .about-timeline::before{
  content: "";
  position: absolute;
  left: 10px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), var(--line) 58%, rgba(42,74,94,0));
}

.page-about .about-timeline__item{
  position: relative;
  padding-bottom: 26px;
}

.page-about .about-timeline__item:last-child{
  padding-bottom: 0;
}

.page-about .about-timeline__mark{
  position: absolute;
  left: -33px;
  top: 5px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 4px rgba(47,227,208,.12);
}

.page-about .about-timeline__year{
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--amber);
}

.page-about .about-timeline__item h3{
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -.01em;
}

.page-about .about-timeline__item p{
  margin: 0;
  color: var(--silver);
  font-size: 15px;
  line-height: 1.82;
  max-width: 60ch;
}

/* ---------- editorial flow ---------- */
.page-about .about-flow ol{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-flow li{
  background: linear-gradient(150deg, rgba(12,42,62,.92), rgba(18,63,85,.46));
  border-radius: var(--r-md);
  padding: 18px 20px;
}

.page-about .about-flow__no{
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
  margin-bottom: 8px;
}

.page-about .about-flow li p{
  margin: 0;
  color: var(--silver);
  font-size: 14.5px;
  line-height: 1.8;
}

.page-about .about-flow__foot{
  margin: 16px 0 24px;
  padding-left: 14px;
  border-left: 2px solid var(--amber);
  color: var(--silver);
  font-size: 14px;
  line-height: 1.85;
}

.page-about .about-figure--wide{
  margin-bottom: 0;
}

/* ---------- content center ---------- */
.page-about .about-center{
  display: grid;
  gap: 26px;
}

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

.page-about .about-topics li{
  padding: 15px 16px;
  border-radius: var(--r-sm);
  background: rgba(12,42,62,.78);
  transition: background .18s var(--ease), box-shadow .18s var(--ease);
}

.page-about .about-topics li:hover{
  background: rgba(18,63,85,.96);
  box-shadow: inset 0 0 0 1px rgba(47,227,208,.35);
}

.page-about .about-topics__no{
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
  margin-bottom: 6px;
}

.page-about .about-topics h3{
  font-size: 16px;
}

.page-about .about-topics p{
  margin: 0;
  color: var(--sage);
  font-size: 13.5px;
  line-height: 1.7;
}

.page-about .about-center__side{
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-about .about-figure--square{
  margin: 0;
}

.page-about .about-order{
  background: linear-gradient(160deg, rgba(18,63,85,.7), rgba(6,24,38,.4));
  border-radius: var(--r-md);
  padding: 18px 18px 20px;
}

.page-about .about-order .mono-tag{
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--amber);
  margin: 0 0 12px;
}

.page-about .about-order ol{
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 10px;
}

.page-about .about-order li{
  color: var(--silver);
  font-size: 14px;
  line-height: 1.75;
}

/* ---------- stats ---------- */
.page-about .about-stats{
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-about .about-stat{
  padding: 18px 16px;
  border-radius: var(--r-md);
  background: linear-gradient(160deg, rgba(12,42,62,.95), rgba(6,24,38,.5));
}

.page-about .about-stat__value{
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(26px, 7vw, 40px);
  line-height: 1.05;
  letter-spacing: -.01em;
  color: var(--porcelain);
}

.page-about .about-stat__value span{
  font-size: .55em;
  color: var(--cyan);
  margin-left: 2px;
}

.page-about .about-stat__label{
  margin: 8px 0 0;
  color: var(--sage);
  font-size: 12.5px;
  line-height: 1.6;
}

.page-about .about-stats__note{
  margin: 20px 0 0;
  color: var(--silver);
  font-size: 14.5px;
  line-height: 1.85;
  max-width: 46em;
}

/* ---------- principles ---------- */
.page-about .about-principles{
  display: grid;
  gap: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(178deg, rgba(157,187,168,.2), rgba(157,187,168,.06) 46%, rgba(6,24,38,0) 100%);
}

.page-about .about-principle{
  padding: 22px 20px;
}

.page-about .about-principle__no{
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--sage);
}

.page-about .about-principle h3{
  color: var(--porcelain);
}

.page-about .about-principle p{
  margin: 0;
  color: var(--silver);
  font-size: 14.5px;
  line-height: 1.8;
}

.page-about .about-principle__scene{
  margin-top: 12px;
  font-size: 13px;
  color: var(--sage);
  line-height: 1.7;
}

/* ---------- next ---------- */
.page-about .about-next{
  margin-top: 36px;
  padding: 26px 20px 8px;
  border-radius: var(--r-lg);
  background: linear-gradient(142deg, rgba(47,227,208,.16), rgba(12,42,62,.94) 58%);
}

.page-about .about-next h2{
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 5vw, 30px);
  letter-spacing: -.02em;
  line-height: 1.2;
}

.page-about .about-next__list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-about .about-next__list li{
  border-bottom: 1px solid rgba(42,74,94,.8);
}

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

.page-about .about-next__list a{
  display: grid;
  gap: 4px;
  padding: 14px 0;
  text-decoration: none;
  color: var(--porcelain);
  font-weight: 700;
  font-size: 16px;
  transition: color .18s var(--ease);
}

.page-about .about-next__list a span{
  font-weight: 400;
  font-size: 13px;
  color: var(--sage);
  line-height: 1.6;
}

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

/* ---------- responsive ---------- */
@media (min-width: 600px){
  .page-about .about-topics{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

  .page-about .about-next{
    padding: 30px 28px 10px;
  }
}

@media (min-width: 900px){
  .page-about .page-shell{
    padding-top: 30px;
  }

  .page-about .about-hero{
    grid-template-columns: minmax(0, 1.55fr) minmax(0, .85fr);
    align-items: start;
    gap: 40px;
    padding-bottom: 46px;
  }

  .page-about .about-hero__lead{
    font-size: 16.5px;
  }

  .page-about .about-section{
    padding: 60px 0;
  }

  .page-about .about-head{
    margin-bottom: 34px;
  }

  .page-about .about-split{
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 44px;
  }

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

  .page-about .about-timeline::before{
    left: 12px;
  }

  .page-about .about-timeline__mark{
    left: -45px;
    top: 6px;
  }

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

  .page-about .about-flow__foot{
    margin-top: 20px;
  }

  .page-about .about-center{
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }

  .page-about .about-stats{
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

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

  .page-about .about-principle{
    padding: 26px 22px 30px;
  }

  .page-about .about-principle + .about-principle{
    border-left: 1px solid rgba(157,187,168,.22);
  }

  .page-about .about-next__list{
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 32px;
  }

  .page-about .about-next__list li:nth-last-child(2){
    border-bottom: 0;
  }
}

@media (min-width: 1200px){
  .page-about .about-hero h1{
    font-size: 72px;
  }

  .page-about .about-card{
    padding: 26px 24px;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-about .about-entries a,
  .page-about .about-topics li,
  .page-about .about-next__list a{
    transition: none;
  }
}