.page-about {
  position: relative;
  color: var(--by-white);
  background-color: var(--by-bg);
}

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

.page-about__hero {
  position: relative;
  padding-top: calc(var(--by-header-h) + 2.5rem);
  padding-bottom: 3rem;
  overflow: hidden;
}

.page-about__hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(230, 57, 70, .14) 0%, transparent 42%),
    repeating-linear-gradient(-45deg, transparent 0 30px, rgba(255, 255, 255, .02) 30px 31px);
  pointer-events: none;
}

.page-about__hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-radial-gradient(circle at 72% 58%, rgba(29, 53, 87, .22) 0 1px, transparent 1px 9px);
  pointer-events: none;
}

.page-about__hero-container {
  position: relative;
  z-index: 1;
}

.page-about__hero-grid {
  display: grid;
  gap: 2rem;
  margin-top: 1.5rem;
}

.page-about__hero-kicker {
  margin-bottom: .5rem;
}

.page-about__hero-title {
  font-size: clamp(2.75rem, 9vw, 6.5rem);
  line-height: .92;
  margin: 1.25rem 0 .5rem;
  color: var(--by-white);
}

.page-about__hero-subtitle {
  display: block;
  font-family: var(--by-font-num);
  font-size: clamp(.8rem, 1.6vw, 1.15rem);
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--by-red);
  margin-bottom: 1.25rem;
}

.page-about__hero-lead {
  max-width: 36rem;
}

.page-about__hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.75rem;
}

.page-about__hero-media {
  margin: 0;
  position: relative;
}

.page-about__hero-img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  clip-path: polygon(0 0, calc(100% - 2rem) 0, 100% 2rem, 100% 100%, 0 100%);
}

.page-about__section {
  position: relative;
  padding: 3rem 0;
}

.page-about__section-num {
  font-family: var(--by-font-num);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1;
  color: var(--by-red);
}

@supports (-webkit-text-stroke: 1px black) {
  .page-about__section-num {
    color: transparent;
    -webkit-text-stroke: 1.5px var(--by-red);
  }
}

.page-about__section-title {
  font-size: clamp(1.75rem, 4vw, 3rem);
  line-height: 1.08;
  margin: .5rem 0 0;
}

.page-about__position-grid {
  display: grid;
  gap: 1.5rem;
}

.page-about__position-index {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
}

.page-about__position-side-tag {
  font-family: var(--by-font-num);
  font-size: .8rem;
  letter-spacing: .2em;
  color: var(--by-gray);
}

.page-about__position-body .by-kicker {
  margin-bottom: .25rem;
}

.page-about__position-copy {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
  max-width: 44rem;
}

.page-about__position-copy p {
  margin: 0;
  color: var(--by-gray);
  line-height: 1.75;
}

.page-about__position-quote {
  position: relative;
  margin: 2rem 0 0;
  padding: 1.75rem 1.75rem 1.75rem 3.5rem;
  background: var(--by-panel);
  border-left: 4px solid var(--by-red);
}

.page-about__position-quote p {
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.55;
  color: var(--by-white);
}

.page-about__position-mark {
  position: absolute;
  top: .5rem;
  left: .95rem;
  font-family: var(--by-font-head);
  font-size: 3.5rem;
  line-height: 1;
  color: var(--by-red);
  opacity: .38;
}

.page-about__section-head {
  display: grid;
  gap: 1rem;
}

.page-about__section-head .by-kicker {
  margin-bottom: .25rem;
}

.page-about__section-head .page-about__section-num {
  font-size: 1.5rem;
}

.page-about__timeline {
  position: relative;
  list-style: none;
  margin: 3rem 0 0;
  padding: 0;
}

.page-about__timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 14px;
  width: 2px;
  background: linear-gradient(to bottom, var(--by-red) 0%, var(--by-blue) 100%);
  opacity: .45;
}

.page-about__milestone {
  position: relative;
  padding-left: 3rem;
  margin-bottom: 2.5rem;
}

.page-about__milestone::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 22px;
  width: 14px;
  height: 14px;
  border: 2px solid var(--by-red);
  background: var(--by-bg);
  transform: rotate(45deg);
}

.page-about__milestone-year {
  font-family: var(--by-font-head);
  font-weight: 900;
  font-size: clamp(2.5rem, 6vw, 4rem);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--by-white);
  margin-bottom: .75rem;
}

.page-about__milestone-card {
  position: relative;
  padding: 1.5rem;
  background: var(--by-panel);
  border-left: 3px solid var(--by-red);
  transition: transform .3s var(--by-ease), box-shadow .3s var(--by-ease), background .3s var(--by-ease);
}

.page-about__milestone-card::after {
  content: '';
  position: absolute;
  right: 0;
  bottom: 0;
  border: 10px solid transparent;
  border-right-color: var(--by-red);
  border-bottom-color: var(--by-red);
}

.page-about__milestone-card h3 {
  font-family: var(--by-font-head);
  font-size: 1.35rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -.01em;
  margin: 0 0 .5rem;
}

.page-about__milestone-card p {
  margin: 0;
  color: var(--by-gray);
  line-height: 1.7;
}

.page-about__scale-grid {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.page-about__scale-copy .page-about__section-num {
  display: block;
  margin-bottom: 1rem;
}

.page-about__scale-copy .by-kicker {
  margin-bottom: .25rem;
}

.page-about__scale-copy > p {
  margin: 1.25rem 0 0;
  max-width: 36rem;
  color: var(--by-gray);
  line-height: 1.75;
}

.page-about__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.page-about__stat {
  position: relative;
  padding: 1.25rem 1.25rem 1.25rem 1.5rem;
  background: var(--by-panel);
  border: 1px solid rgba(255, 255, 255, .06);
}

.page-about__stat::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--by-red);
}

.page-about__stat-value {
  display: block;
  font-family: var(--by-font-num);
  font-size: 1.85rem;
  line-height: 1;
  color: var(--by-white);
}

.page-about__stat-value--red {
  color: var(--by-red);
}

.page-about__stat-label {
  display: block;
  margin-top: .5rem;
  font-size: .85rem;
  color: var(--by-gray);
}

.page-about__scale-media {
  margin: 0;
}

.page-about__scale-media img,
.page-about__tech-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about__tech-grid {
  display: grid;
  gap: 2.5rem;
  align-items: center;
  margin-top: 1.5rem;
}

.page-about__tech-points {
  display: grid;
  gap: 1rem;
}

.page-about__tech-item {
  position: relative;
  padding: 1.25rem 1.5rem 1.25rem 3.5rem;
  background: linear-gradient(90deg, rgba(230, 57, 70, .07), transparent 62%);
  border: 1px solid rgba(255, 255, 255, .06);
}

.page-about__tech-num {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--by-font-num);
  font-weight: 700;
  font-size: 1rem;
  color: var(--by-red);
}

.page-about__tech-item h3 {
  font-family: var(--by-font-head);
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -.01em;
  text-transform: none;
  margin: 0 0 .35rem;
}

.page-about__tech-item p {
  margin: 0;
  color: var(--by-gray);
  line-height: 1.65;
}

.page-about__tech-media {
  margin: 0;
}

.page-about__cq-card {
  position: relative;
  padding: 2.5rem 2rem;
  background: linear-gradient(180deg, rgba(29, 53, 87, .55) 0%, rgba(5, 11, 20, .55) 100%), var(--by-panel);
  border: 1px solid rgba(255, 215, 0, .15);
  overflow: hidden;
}

.page-about__cq-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 42px;
  height: 42px;
  border-top: 4px solid var(--by-gold);
  border-left: 4px solid var(--by-gold);
}

.page-about__cq-copy .by-kicker {
  margin-bottom: .25rem;
}

.page-about__cq-copy > p {
  margin: 1.25rem 0 0;
  color: var(--by-gray);
  line-height: 1.75;
}

.page-about__cq-list {
  margin: 1.75rem 0 0;
}

.page-about__cq-row {
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: 1rem;
  padding: .75rem 0;
  border-bottom: 1px dashed rgba(255, 255, 255, .12);
}

.page-about__cq-row dt {
  font-family: var(--by-font-num);
  font-size: .85rem;
  font-weight: 700;
  color: var(--by-gold);
}

.page-about__cq-row dd {
  margin: 0;
}

.page-about__cq-svg {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 2rem;
}

.page-about__next {
  padding-top: .5rem;
  padding-bottom: 4rem;
}

.page-about__next .by-kicker {
  margin-bottom: 1rem;
}

.page-about__next-grid {
  display: grid;
  gap: 1rem;
}

.page-about__next-link {
  display: block;
  position: relative;
  padding: 1.75rem;
  background: var(--by-panel);
  border: 1px solid rgba(255, 255, 255, .08);
  color: var(--by-white);
  text-decoration: none;
  transition: background .3s var(--by-ease), transform .3s var(--by-ease);
}

.page-about__next-idx {
  font-family: var(--by-font-num);
  font-size: 1rem;
  font-weight: 700;
  color: var(--by-red);
}

.page-about__next-idx-desc {
  display: block;
  font-family: var(--by-font-num);
  font-size: .75rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--by-gray);
}

.page-about__next-title {
  display: block;
  font-family: var(--by-font-head);
  font-size: 1.5rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -.01em;
  margin-top: .75rem;
  padding-right: 1.5rem;
}

.page-about__next-arrow {
  position: absolute;
  bottom: 1.25rem;
  right: 1.5rem;
  font-size: 1.75rem;
  color: var(--by-gold);
}

@media (hover: hover) {
  .page-about__milestone:nth-child(odd):hover .page-about__milestone-card {
    background: rgba(230, 57, 70, .09);
    transform: translateX(-4px);
    box-shadow: 6px 6px 0 rgba(230, 57, 70, .18);
  }

  .page-about__milestone:nth-child(even):hover .page-about__milestone-card {
    background: rgba(230, 57, 70, .09);
    transform: translateX(4px);
    box-shadow: -6px 6px 0 rgba(230, 57, 70, .18);
  }

  .page-about__next-link:hover {
    background: rgba(230, 57, 70, .1);
    transform: translateY(-4px);
  }
}

@media (min-width: 860px) {
  .page-about__hero {
    padding-top: calc(var(--by-header-h) + 3.5rem);
    padding-bottom: 5rem;
  }

  .page-about__hero-grid {
    grid-template-columns: 1.05fr 1fr;
    align-items: center;
    gap: 3rem;
    margin-top: 2rem;
  }

  .page-about__section {
    padding: 5rem 0;
  }

  .page-about__position-grid {
    grid-template-columns: 180px 1fr;
    gap: 4rem;
  }

  .page-about__position-index {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
    padding-left: 1.5rem;
    border-left: 2px solid var(--by-red);
  }

  .page-about__section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 2rem;
  }

  .page-about__section-head .page-about__section-num {
    font-size: clamp(2rem, 4vw, 3.5rem);
  }

  .page-about__timeline {
    margin-top: 5rem;
  }

  .page-about__timeline::before {
    left: 50%;
    transform: translateX(-50%);
  }

  .page-about__milestone {
    width: 50%;
    padding: 0 4rem 0 0;
    margin-bottom: 5rem;
  }

  .page-about__milestone:nth-child(even) {
    margin-left: 50%;
    padding: 0 0 0 4rem;
  }

  .page-about__milestone::before {
    left: auto;
    right: -7px;
    top: 44px;
    width: 14px;
    height: 14px;
  }

  .page-about__milestone:nth-child(even)::before {
    right: auto;
    left: -7px;
  }

  .page-about__milestone:nth-child(odd) .page-about__milestone-card {
    border-left: 0;
    border-right: 3px solid var(--by-red);
  }

  .page-about__milestone-year {
    font-size: clamp(3.5rem, 6vw, 5.5rem);
    margin-bottom: .75rem;
  }

  .page-about__scale-grid {
    grid-template-columns: 1.1fr 1fr;
    gap: 4rem;
  }

  .page-about__stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about__stat-value {
    font-size: 2.75rem;
  }

  .page-about__tech-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }

  .page-about__cq-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    padding: 4rem 3rem;
  }

  .page-about__cq-svg {
    margin-top: 0;
  }

  .page-about__next-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about__milestone,
  .page-about__milestone-card,
  .page-about__next-link {
    transition: none;
  }
}