.site-header {
  position: sticky;
  z-index: 30;
  inset-block-start: 0;
  border-block-end: 1px solid var(--store-border);
  background: color-mix(in srgb, var(--store-surface) 95%, transparent);
  box-shadow: 0 .35rem 1rem rgba(23, 34, 28, .04);
  backdrop-filter: blur(1rem);
}

.site-header__top {
  position: relative;
  display: flex;
  min-block-size: 4.75rem;
  inline-size: min(calc(100% - 2rem), var(--store-content));
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin-inline: auto;
}

.site-header__identity,
.site-header__actions {
  display: flex;
  min-inline-size: 0;
  align-items: center;
  gap: 1rem;
}

.site-header__identity { justify-self: start; }
.site-header__actions { justify-self: end; }

.site-header__navigation-row {
  border-block-start: 1px solid color-mix(in srgb, var(--store-border) 72%, transparent);
  background: var(--store-surface);
}

@media (max-width: 48rem) {
  .site-header__top {
    min-block-size: 4rem;
    gap: .75rem;
  }

  .site-header__navigation-row {
    border: 0;
  }

  .site-header__top { flex-wrap: nowrap; gap: .35rem; padding-block: .65rem; }
  .site-header__identity { flex: 1 1 auto; overflow: hidden; }
  .site-header__actions { flex: 0 0 auto; gap: .2rem; }
}