.site-header{border-bottom:1px solid hsl(var(--border));background:#fff;justify-content:space-between;align-items:center;gap:24px;min-height:72px;padding:0 32px;display:flex}.brand{letter-spacing:0;font-size:24px;font-weight:800}.site-nav{color:hsl(var(--muted-foreground));align-items:center;gap:18px;font-size:14px;font-weight:700;display:flex}.page-shell{width:min(1180px,100% - 32px);margin:0 auto;padding:36px 0 64px}.page-shell h1{letter-spacing:0;margin:0 0 18px;font-size:clamp(32px,4vw,52px);line-height:1.02}.panel{border:1px solid hsl(var(--border));background:#fff;border-radius:8px;padding:20px}.muted{color:hsl(var(--muted-foreground))}@media (max-width:760px){.site-header{flex-direction:column;align-items:flex-start;padding:18px 20px}.site-nav{flex-wrap:wrap}}