:root{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;color:#182433;background:#eff3f8}*{box-sizing:border-box}body{margin:0}.shell{min-height:100vh;padding:40px 16px}.panel{max-width:820px;margin:0 auto;background:#fff;border-radius:12px;padding:24px;box-shadow:0 10px 30px #00000014}section{display:grid;gap:12px}label{display:grid;gap:8px;font-weight:600}input,textarea,button{font:inherit}input,textarea{width:100%;border:1px solid #c7d2de;border-radius:8px;padding:10px}button{border:0;border-radius:8px;background:#0b5ed7;color:#fff;padding:10px 14px;cursor:pointer}.row{display:flex;gap:8px}.row-between{display:flex;justify-content:space-between;align-items:center}.card{border:1px solid #d5dfeb;border-radius:10px;padding:14px;display:grid;gap:12px}.message{margin-top:14px;background:#f3f8ff;border:1px solid #cee0ff;padding:10px;border-radius:8px}