@media (prefers-color-scheme: light) {
  html {
    --text-color: #666666;
    --bar-background-color: rgba(33, 33, 33, 0.1);
    --background-color: #f7f7f7;
  }
}

@media (prefers-color-scheme: dark) {
  html {
    --text-color: #aaaaaa;
    --bar-background-color: rgba(247, 247, 247, 0.1);
    --background-color: #212121;
  }
}

body {
    background-color: var(--background-color);
}
.loading {
    display: flex;
    justify-content: center;
    text-align: center;
    align-items: center;
    margin: 0;
    position: absolute;
    top: 50%;
    left: 50%;
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}
.loader {
    border: 0.3rem solid var(--background-color);
    border-radius: 50%;
    border-top: 0.3rem solid var(--text-color);
    border-right: 0.3rem solid var(--text-color);
    border-bottom: 0.3rem solid var(--text-color);
    width: 6rem;
    height: 6rem;
    -webkit-animation: spin 1s linear infinite;
    animation: spin 1s linear infinite;
}
.loader-bar {
    width: 8rem;
    background-color: var(--bar-background-color);
    height: 0.3rem;
    border-radius: 0.06rem;
    position: relative;
    overflow: hidden;
    margin-left: auto;
    margin-right: auto;
}
.loader-bar:after {
    position: absolute;
    content: '';
    left:-25%;
    width: 50%;
    height: 0.3rem;
    background-color: var(--text-color);
    border-radius: 0.06rem;
    animation: bar linear 1s infinite;
}
.logo {
    width: 6rem;
    height: 6rem;
    margin-bottom: 0.8rem;
    border-radius: 0.8rem;
}
.fade{
    animation: fadeIn 0.2s ease 0.3s 1 normal;
}
@keyframes fadeIn {
    0% {opacity: 0}
    100% {opacity: 1}
}
@-webkit-keyframes spin {
    0% {
    -webkit-transform: rotate(0deg);
    }
    100% {
    -webkit-transform: rotate(360deg);
    }
}
@keyframes spin {
    0% {
    transform: rotate(0deg);
    }
    100% {
    transform: rotate(360deg);
    }
}
@keyframes bar {
    0% {
        left: -25%;
    }
    100% {
        left: 100%;
    }
}