:root{--brand-primary:#6200ee;--bg-main:#121212;--bg-card:#1e1e1e;--text-main:#fff;--text-muted:#aaa;--error-red:#cf6679;--border-subtle:#333}body{background-color:var(--bg-main);color:var(--text-main);margin:0;padding:0;font-family:system-ui,-apple-system,sans-serif}