*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:#f5f5f7;color:#1d1d1f;min-height:100vh}button{cursor:pointer;border:none;border-radius:8px;font-size:14px;font-weight:500;padding:8px 16px;transition:opacity .15s;outline:none}button:disabled{opacity:.5;cursor:not-allowed}input,textarea,select{font-family:inherit;font-size:14px;border:1px solid #d1d1d6;border-radius:8px;padding:8px 12px;outline:none;width:100%;transition:border-color .15s}input:focus,textarea:focus,select:focus{border-color:#007aff}