.app-loading {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    top: 30vh;
}

.app-loading h1 {
    display: block;
    margin-top: 3em;
    margin-inline-start: 0;
    margin-inline-end: 0;
    font-weight: normal;
}

.cube-loader {
    width: 73px;
    height: 73px;
    margin: 0 auto;
    margin-top: 49px;
    position: relative;
    transform: rotateZ(45deg);
}

.cube {
    position: relative;
    transform: rotateZ(45deg);
    width: 50%;
    height: 50%;
    float: left;
    transform: scale(1.1);
}

.cube:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #2d5ca6;
    animation: cube-loader 2.76s infinite linear both;
    transform-origin: 100% 100%;
}

.loader-2 {
    transform: scale(1.1) rotateZ(90deg);
}

.loader-3 {
    transform: scale(1.1) rotateZ(180deg);
}

.loader-4 {
    transform: scale(1.1) rotateZ(270deg);
}

.loader-2:before {
    animation-delay: 0.35s;
}

.loader-3:before {
    animation-delay: 0.69s;
}

.loader-4:before {
    animation-delay: 1.04s;
}

@keyframes cube-loader {
    0%,
    10% {
        transform: perspective(136px) rotateX(-180deg);
        opacity: 0;
    }
    25%,
    75% {
        transform: perspective(136px) rotateX(0deg);
        opacity: 1;
    }
    90%,
    100% {
        transform: perspective(136px) rotateY(180deg);
        opacity: 0;
    }
}