html {
  scroll-padding-top: calc(var(--header-height) + var(--space-4));
}

.page-home {
  --card-reveal-distance: 0.5rem;
}

.hero {
  padding: clamp(4.5rem, 9vw, 7.5rem) 0 clamp(4rem, 7vw, 6rem);
  border-bottom: var(--border-width) solid var(--color-line);
  scroll-margin-top: var(--header-height);
}

.hero h1 {
  max-width: 18ch;
  margin: 0;
  font-size: var(--size-hero);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1;
  text-wrap: balance;
}

.hero-summary {
  max-width: var(--text-measure);
  margin: var(--space-7) 0 0;
  color: var(--color-ink-soft);
  font-size: var(--size-lede);
  text-wrap: balance;
}

.card-grid--research {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card-grid--technology,
.card-grid--programmes {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.research-card { min-height: 15rem; }
.research-card__number { margin: 0 0 var(--space-8); }
.technology-card__label { margin-bottom: var(--space-6); }

.about {
  background: var(--color-wash);
  border-top: var(--border-width) solid var(--color-line);
  border-bottom: var(--border-width) solid var(--color-line);
}

.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(var(--space-7), 7vw, 7rem);
  align-items: start;
}

.about-copy {
  margin: 0;
  color: var(--color-ink-soft);
  font-size: var(--size-lede);
  text-wrap: pretty;
}

.principles {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--border-width) solid var(--color-ink);
}

.principles li {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: var(--border-width) solid var(--color-line);
  font-size: var(--size-small);
}

.principles span {
  color: var(--color-muted);
  font-size: var(--size-label);
  font-weight: 700;
}

.programme {
  display: flex;
  min-height: 13.75rem;
  flex-direction: column;
  text-decoration: none;
}

.programme:hover .content-card__title { text-decoration: underline; }
.programme__label { margin-bottom: var(--space-8); }

.programme__link {
  display: inline-block;
  margin-top: auto;
  padding-top: var(--space-4);
  font-size: var(--size-navigation);
  font-weight: 700;
}

.card-reveal-enabled [data-reveal-card] {
  opacity: 0;
  transform: translate3d(var(--reveal-x, 0), var(--reveal-y, 0), 0);
  transition:
    opacity 420ms ease-out,
    transform 420ms cubic-bezier(0.2, 0.65, 0.3, 1);
}

.card-reveal-enabled [data-reveal-card][data-reveal-direction="left"] {
  --reveal-x: calc(0rem - var(--card-reveal-distance));
}

.card-reveal-enabled [data-reveal-card][data-reveal-direction="up"] {
  --reveal-y: var(--card-reveal-distance);
}

.card-reveal-enabled [data-reveal-card][data-reveal-direction="right"] {
  --reveal-x: var(--card-reveal-distance);
}

.card-reveal-enabled [data-reveal-card][data-reveal-direction="down"] {
  --reveal-y: calc(0rem - var(--card-reveal-distance));
}

.page-home .card-grid {
  padding-right: calc(var(--card-shadow-offset) + var(--card-reveal-distance));
  padding-bottom: calc(var(--card-shadow-offset) + var(--card-reveal-distance));
}

.card-reveal-enabled [data-reveal-card].is-revealed {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

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

@media (max-width: 56rem) {
  .card-grid--research {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .card-grid--research .research-card:last-child {
    grid-column: 1 / -1;
    min-height: auto;
  }

  .about-layout {
    grid-template-columns: 1fr;
    gap: var(--space-7);
  }
}

@media (max-width: 44rem) {
  .hero {
    padding-top: var(--space-9);
    padding-bottom: var(--space-9);
  }

  .section { padding: var(--space-8) 0; }

  .card-grid--research,
  .card-grid--technology,
  .card-grid--programmes {
    grid-template-columns: 1fr;
  }

  .card-grid--research .research-card:last-child { grid-column: auto; }
  .research-card,
  .programme { min-height: auto; }
  .research-card__number { margin-bottom: var(--space-7); }
  .programme__label { margin-bottom: var(--space-7); }
}