.site-shell {
  width: min(1020px, 100%);
  margin: 0 auto;
  padding: 0;
}

.site-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--space-16);
  align-items: center;
  border-bottom: 1px solid var(--line);
  padding: var(--space-8) 0 var(--space-16);
}

.brand-block {
  min-width: 0;
}

.brand-name {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 650;
  letter-spacing: -0.015em;
}

.brand-meta {
  margin: 3px 0 0;
  font-size: 0.78rem;
  color: var(--muted);
}

.main-nav {
  justify-self: center;
  display: inline-flex;
  align-items: center;
  gap: 1.2rem;
  font-size: 0.94rem;
}

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

.main-nav a[aria-current="page"] {
  color: var(--text);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
}

.header-link {
  justify-self: end;
  font-size: 0.9rem;
}

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

.page-section {
  margin-top: 3rem;
}

.site-footer {
  margin-top: 4.2rem;
  padding-top: var(--space-16);
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-12);
  justify-content: space-between;
  font-size: var(--size-14);
  color: var(--muted);
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .main-nav,
  .header-link {
    justify-self: start;
  }
}

@media (max-width: 640px) {
  .main-nav {
    gap: var(--space-12);
    flex-wrap: wrap;
  }
}