:root{color:#1a1a1a;background:#f8f9fa;font-family:system-ui,-apple-system,sans-serif;line-height:1.5}body{margin:0}main{max-width:48rem;margin:0 auto;padding:2rem 1rem}.card{background:#fff;border:1px solid #e5e7eb;border-radius:.5rem;margin-top:1rem;padding:1.25rem}