body{font-family:system-ui,sans-serif;background:#f8fafc;color:#18212f;margin:0}main{max-width:720px;margin:3rem auto;padding:2rem;background:#fff;border-radius:16px;box-shadow:0 4px 24px #0001}input,button{box-sizing:border-box;width:100%;padding:.75rem;margin:.4rem 0;font:inherit}button{border:0;border-radius:8px;background:#18212f;color:#fff;cursor:pointer}.card{border:1px solid #dbe3ee;border-radius:10px;padding:1rem;margin:1rem 0}.error{color:#b91c1c}img{max-width:100%;border-radius:8px}a{color:#1d4ed8}