.btn-send{margin:0 auto}.loading{display:flex;justify-content:center;width:100%}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.spinner{--spinner-color:#000;aspect-ratio:1/1;border-radius:50%;animation-name:spin;animation-iteration-count:infinite;animation-timing-function:linear}.spinner--quarter{width:48px;border:5px solid var(--spinner-color);border-top-color:transparent;animation-duration:1s}.spinner--dotted{width:48px;border:5px dotted var(--spinner-color);animation-duration:5s}.spinner--hourglass{width:58px;background:repeating-conic-gradient(transparent 0deg 90deg,var(--spinner-color) 90deg 180deg);animation-duration:2s}