:root{font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.4}body{color:#1b2430;background:#f4f7fb;margin:0}.page{max-width:760px;margin:0 auto;padding:3rem 1rem}.card{background:#fff;border:1px solid #d8dfeb;border-radius:.75rem;padding:1rem}.card.ok{border-color:#84cc16}.card.loading{border-color:#60a5fa}.error{color:#dc2626}