.hidden {opacity: 0;}.bar-loader {position: absolute;top: 50%;left: 50%;transform: translate(-50%, -50%);display: flex;justify-content: center;align-items: center;height: 20px;gap: 5px;}.bar-loader .bar {width: 5px;height: 20px;background-color: white;animation: bar-scale 1s ease-in-out infinite;}.bar-loader .bar:nth-child(1) {animation-delay: 0s;}.bar-loader .bar:nth-child(2) {animation-delay: 0.2s;}.bar-loader .bar:nth-child(3) {animation-delay: 0.4s;}.bar-btn.loading .bar-text {opacity: 0;}.bar-btn.loading .bar-loader {display: flex;}@keyframes bar-scale {0%, 100% {height: 8px;}50% {height: 18px;}}