.page {
  position: relative;
  display: grid;
  grid-template-columns: 17.5rem 1fr;
  gap: 2rem;
  width: min(100% - 2 * var(--gutter), var(--content-width));
  margin: -5rem auto 5rem;
}

.page-sidebar {
  position: sticky;
  top: 1.5rem;
  align-self: start;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.page-title {
  position: relative;
  padding: 2.75rem 2rem 2.25rem;
  overflow: hidden;
  color: #fff;
  background: linear-gradient(150deg, var(--color-primary), var(--color-primary-dark));
}

.page-title::after {
  position: absolute;
  top: -3.5rem;
  right: -3.5rem;
  width: 9rem;
  height: 9rem;
  content: "";
  border: 1.5rem solid rgb(255 255 255 / 9%);
  border-radius: 50%;
}

.page-title .eyebrow {
  margin: 0;
  font-size: 0.85rem;
  font-weight: 500;
  line-height: 1.4;
  color: rgb(255 255 255 / 78%);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.page-title h1 {
  margin: 0.35rem 0 0;
  font-size: 1.75rem;
}

.page-nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
  background: #fff;
  border: 0;
}

.page-nav li + li {
  border-top: 1px solid var(--color-border);
}

.page-nav a {
  position: relative;
  display: block;
  padding: 0.95rem 2rem;
  color: var(--color-text);
  transition:
    color 0.2s var(--ease),
    background-color 0.2s var(--ease),
    padding-left 0.2s var(--ease);
}

.page-nav a::before {
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  content: "";
  background: var(--color-primary);
  transform: scaleY(0);
  transition: transform 0.2s var(--ease);
}

.page-nav a.is-current {
  color: var(--color-primary);
  background: #fff;
}

.page-nav a.is-current::before {
  transform: scaleY(1);
}

.page-nav a:hover {
  padding-left: 2.4rem;
  color: var(--color-primary);
  background: var(--color-surface);
}

.page-nav a:hover::before {
  transform: scaleY(1);
}

.page-body {
  min-width: 0;
  padding: 1.25rem 3rem 3.5rem;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: 0 1rem 2.75rem rgb(19 58 120 / 10%);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-bottom: 2rem;
  margin-inline: -1rem;
  padding: 0.6rem 1rem;
  font-size: 0.875rem;
  color: var(--color-muted);
  background: var(--color-surface);
  border: 0;
  border-radius: var(--radius);
}

.breadcrumb a {
  color: var(--color-muted);
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

.breadcrumb a::after {
  margin-left: 0.5rem;
  color: #c4ccd6;
  content: "/";
}

.breadcrumb [aria-current] {
  color: var(--color-primary);
}

.page-body section {
  scroll-margin-top: 1.5rem;
}

.page-body section + section {
  margin-top: 3.5rem;
}

.page-body h2 {
  display: flex;
  gap: 0.7rem;
  align-items: center;
  margin-bottom: 1.75rem;
  margin-inline: -1rem;
  padding: 0.75rem 1rem;
  font-size: 1.35rem;
  color: var(--color-primary-dark);
  background: var(--tint);
  border-radius: var(--radius);
}

.page-body h2::before {
  flex: none;
  width: 5px;
  height: 1.1em;
  content: "";
  background: var(--color-accent);
}

main:has(> .page) {
  background: var(--ground);
}

@media (max-width: 64rem) {
  .page {
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: 0;
  }

  .page-sidebar {
    position: static;
    margin-bottom: 1rem;
  }

  .page-title {
    padding: 1.75rem 1.5rem;
  }

  .page-nav ul {
    display: flex;
    flex-wrap: wrap;
  }

  .page-nav li + li {
    border-top: 0;
  }

  .page-nav a {
    padding: 0.6rem 1rem;
  }

  .page-body {
    padding: 1rem 1.5rem 2.5rem;
  }

  .page-body h2 {
    margin-inline: -0.5rem;
    padding-inline: 0.5rem;
  }
}