body {
    opacity: 0;
    animation: page-in .25s ease forwards;
}

@keyframes page-in {
    to {
        opacity: 1;
    }
}

.fade-out {
    opacity: 0;
    transition: opacity .2s ease;
}

#progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background: var(--accent);
    z-index: 999;
    transition: width .1s linear;
}