:root{--fg:#1a1a1a;--muted:#666;--accent:#7a1f2b;font-family:system-ui,sans-serif}body{color:var(--fg);background:#fafafa;margin:0}nav{background:var(--accent);color:#fff;align-items:center;gap:1rem;padding:.75rem 1rem;display:flex}nav a{color:#fff;text-decoration:none}nav .spacer{flex:1}main{max-width:880px;margin:2rem auto;padding:0 1rem}form.auth{flex-direction:column;gap:.5rem;max-width:360px;display:flex}form.auth input{padding:.5rem;font-size:1rem}button{cursor:pointer;padding:.5rem 1rem}.error{color:var(--accent)}.muted{color:var(--muted)}