.page-header{display:flex;flex-direction:column;justify-content:space-between;gap:1rem;margin-bottom:2rem;@media(min-width:40rem){flex-direction: row; align-items: center;}> .heading { > .title { font-size: 1.875rem; font-weight: 700; } > .subtitle { margin-top: 0.25rem; color: var(--text-muted); } }}