body{margin:0;font-family:Manrope,Segoe UI,system-ui,sans-serif;background:#f6f7f9;color:#111827}.container{max-width:780px;margin:0 auto;padding:32px 20px}.panel{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:24px}button,input{font-family:inherit}input{border-radius:10px;border:1px solid #e5e7eb}button,input{padding:10px 12px}button{border-radius:10px;border:1px solid #111827;background:#111827;color:#fff;cursor:pointer}