* {
    border: 0;
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
:root {
    --hue: 223;
    --bg: rgb(50 51 61);
    --fg: hsl(var(--hue),10%,10%);
}
body {
    background-color: rgb(50 51 61);
    color: rgb(50 51 61);
    height: 100vh;
    display: grid;
    place-items: center;
    transition: background-color 0.3s;
}
main {
    padding: 1.5em 0;
}

.loader-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1em;
}

.pl,
.pl__worm {
    animation-duration: 3s;
    animation-iteration-count: infinite;
}
.pl {
    animation-name: bump;
    animation-timing-function: linear;
    width: 8em;
    height: 8em;
}
.pl__ring {
    stroke: hsla(var(--hue),10%,10%,0.1);
    transition: stroke 0.3s;
}
.pl__worm {
    animation-name: worm;
    animation-timing-function: cubic-bezier(0.42,0.17,0.75,0.83);
}

/* Dark theme */
@media (prefers-color-scheme: dark) {
    :root {
        --bg: hsl(var(--hue),10%,10%);
        --fg: hsl(var(--hue),10%,90%);
    }
    .pl__ring {
        stroke: hsla(var(--hue),10%,90%,0.1);
    }
}

/* Animations */
@keyframes bump {
    from,
    42%,
    46%,
    51%,
    55%,
    59%,
    63%,
    67%,
    71%,
    74%,
    78%,
    81%,
    85%,
    88%,
    92%,
    to { transform: translate(0,0); }
    44% { transform: translate(1.33%,6.75%); }
    53% { transform: translate(-16.67%,-0.54%); }
    61% { transform: translate(3.66%,-2.46%); }
    69% { transform: translate(-0.59%,15.27%); }
    76% { transform: translate(-1.92%,-4.68%); }
    83% { transform: translate(9.38%,0.96%); }
    90% { transform: translate(-4.55%,1.98%); }
}
@keyframes worm {
    from { stroke-dashoffset: 10; }
    25% { stroke-dashoffset: 295; }
    to { stroke-dashoffset: 1165; }
}