.site-header{display:flex;justify-content:space-between;align-items:center;padding:18px 24px;border-bottom:1px solid color-mix(in srgb,var(--fg) 12%,transparent)}.site-logo{font-family:var(--font-heading)}.site-nav{display:flex;gap:18px;color:var(--muted);font-size:.95rem;align-items:center}.site-signin{padding:7px 14px;border-radius:var(--radius);background:linear-gradient(90deg,var(--primary),var(--accent));color:#fff;font-weight:600}.site-footer{text-align:center;padding:32px 24px;color:var(--muted);font-size:.85rem;border-top:1px solid color-mix(in srgb,var(--fg) 12%,transparent)}