.page-header{background:var(--surface-alt);border-bottom:1px solid var(--border);text-align:center;padding-block:clamp(2rem,5vw,3.5rem)}.page-header__title{text-transform:uppercase;letter-spacing:.02em;font-size:clamp(1.75rem,3.5vw,2.5rem);font-weight:800}.page-header__description{color:var(--muted-foreground);margin-top:.75rem;max-width:640px;margin-inline:auto}