:root {
  --ds-hero-bg: linear-gradient(135deg, rgba(255,255,255,.92), rgba(245,247,250,.88));
  --ds-hero-border: rgba(0,0,0,.08);
  --ds-card-border: rgba(0,0,0,.08);
  --ds-card-shadow: 0 14px 36px rgba(0,0,0,.08);
}

.md-typeset h1:first-of-type {
  margin-bottom: .6rem;
  font-size: 2.2rem;
  letter-spacing: -.02em;
}

.md-typeset h1:first-of-type + p {
  font-size: 1.05rem;
  color: var(--md-default-fg-color--light);
  max-width: 52rem;
  margin-bottom: 1.2rem;
}

.md-content__inner > .md-typeset {
  position: relative;
}

.md-content__inner > .md-typeset > h1:first-of-type,
.md-content__inner > .md-typeset > h1:first-of-type + p,
.md-content__inner > .md-typeset > p:has(.md-button) {
  position: relative;
  z-index: 1;
}

.md-content__inner > .md-typeset > h1:first-of-type::before {
  content: "";
  display: block;
  position: absolute;
  inset: -1.25rem -1.5rem -6.25rem -1.5rem;
  border: 1px solid var(--ds-hero-border);
  border-radius: 1.25rem;
  background: var(--ds-hero-bg);
  box-shadow: var(--ds-card-shadow);
  z-index: -1;
}

.md-typeset .md-button {
  border-radius: 999px;
  padding: .7em 1.15em;
  font-weight: 600;
}

.md-typeset .grid.cards {
  margin-top: 2.5rem;
}

.md-typeset .grid.cards > ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.md-typeset .grid.cards > ul > li {
  margin: 0;
  padding: 1rem 1rem 1.1rem;
  border: 1px solid var(--ds-card-border);
  border-radius: 1rem;
  background: var(--md-default-bg-color);
  box-shadow: var(--ds-card-shadow);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.md-typeset .grid.cards > ul > li:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 42px rgba(0,0,0,.12);
  border-color: rgba(0,0,0,.12);
}

.md-typeset .grid.cards > ul > li > p:first-child {
  margin-top: 0;
  font-size: 1.02rem;
}

.md-typeset .grid.cards > ul > li hr {
  margin: .75rem 0 1rem;
}

.md-typeset .grid.cards > ul > li a {
  font-weight: 600;
}

@media (max-width: 76.2344em) {
  .md-content__inner > .md-typeset > h1:first-of-type::before {
    inset: -1rem -1rem -5.5rem -1rem;
  }
}

@media (max-width: 44.9844em) {
  .md-typeset h1:first-of-type {
    font-size: 1.8rem;
  }

  .md-content__inner > .md-typeset > h1:first-of-type::before {
    inset: -.85rem -.75rem -5rem -.75rem;
  }
}

.md-typeset .chapter-cards > ul {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.md-typeset .chapter-cards > ul > li {
  min-height: 13.5rem;
}

.md-typeset .chapter-cards > ul > li p:last-child {
  margin-bottom: 0;
}

.md-typeset .chapter-lead {
  margin: 1.2rem 0 1.8rem;
  padding: 1rem 1.1rem;
  border: 1px solid rgba(0,0,0,.08);
  border-radius: 1rem;
  background: linear-gradient(180deg, rgba(255,255,255,.9), rgba(246,248,250,.9));
  box-shadow: 0 10px 28px rgba(0,0,0,.06);
}

.md-typeset .chapter-lead p:first-child {
  margin-top: 0;
  margin-bottom: .7rem;
  font-size: 1rem;
}

.md-typeset .chapter-lead ul,
.md-typeset .chapter-lead li {
  margin-bottom: 0;
}

.md-typeset .code-overview > ul {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.md-typeset .code-overview > ul > li {
  min-height: 11.5rem;
}

.md-typeset .code-overview > ul > li ul {
  margin: .5rem 0 0;
  padding-left: 1.1rem;
}

.md-typeset .catalog-sections > ul {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.md-typeset .catalog-sections > ul > li {
  min-height: 12rem;
}

.md-typeset .chapter-nav {
  margin: 2rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

.md-typeset .chapter-nav .md-button {
  margin: 0;
}

/* mobile-density-tuning */
.md-typeset > p .md-button {
  margin-right: .5rem;
  margin-bottom: .5rem;
}

.md-typeset .chapter-nav .md-button {
  margin-bottom: 0;
}

@media (max-width: 44.9844em) {
  .md-typeset .md-button {
    width: 100%;
    text-align: center;
    justify-content: center;
    padding: .8em 1em;
  }

  .md-typeset > p .md-button,
  .md-typeset .chapter-nav .md-button {
    margin-right: 0;
    margin-bottom: .6rem;
  }

  .md-typeset .chapter-nav {
    margin: 1.25rem 0 0;
    gap: .5rem;
  }

  .md-typeset .grid.cards {
    margin-top: 1.75rem;
  }

  .md-typeset .grid.cards > ul {
    grid-template-columns: 1fr;
    gap: .85rem;
  }

  .md-typeset .grid.cards > ul > li,
  .md-typeset .chapter-cards > ul > li,
  .md-typeset .catalog-sections > ul > li,
  .md-typeset .code-overview > ul > li {
    min-height: auto;
    padding: .95rem .95rem 1rem;
  }

  .md-typeset .chapter-lead {
    margin: 1rem 0 1.4rem;
    padding: .9rem .95rem;
  }
}