.shell {
  width: min(calc(100% - (var(--page-gutter) * 2)), var(--container-max));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 1000;
  padding: 10px 14px;
  background: var(--color-navy-950);
  color: var(--color-white);
  transform: translateY(-140%);
  transition: transform var(--duration-fast) var(--ease-standard);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-height);
  background: rgba(247, 246, 243, 0.82);
  transition: background-color var(--duration-normal) var(--ease-standard);
}

.site-header.is-scrolled {
  background: rgba(247, 246, 243, 0.96);
}

.site-header__inner {
  display: grid;
  grid-template-columns: 250px 1fr 145px;
  align-items: center;
  height: 100%;
  column-gap: 46px;
}

.brand img {
  width: 226px;
  height: auto;
}

.primary-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: clamp(28px, 3.1vw, 52px);
  color: var(--color-navy-900);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.primary-nav a {
  position: relative;
  padding-block: 12px;
}

.primary-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 6px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-fast) var(--ease-standard);
}

.primary-nav a:hover::after,
.primary-nav a:focus-visible::after,
.primary-nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

main {
  position: relative;
}