* {
	border: 0;
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}
:root {
	--bg: #303030;
	--fg: #303030;
	--trans-dur: 0.3s;
	font-size: calc(16px + (24 - 16) * (100vw - 320px) / (2560 - 320));
}
body {
	background-color: var(--bg);
	color: var(--fg);
	display: flex;
	font: 1em/1.5 sans-serif;
	height: 100vh;
	transition:
		background-color var(--trans-dur),
		color var(--trans-dur);
}
.pl {
	display: block;
	margin: auto;
	width: 16em;
	height: auto;
}
.pl__bottles,
.pl__bottle--bounce,
.pl__bottle--in,
.pl__bottle--out,
.pl__cap--on,
.pl__fill--full,
.pl__fill--half,
.pl__fill--startle1,
.pl__fill--startle2,
.pl__rod {
	animation: move-right 0.6s linear infinite;
}
.pl__bottle {
	transform-origin: 8px 56px;
}
.pl__bottle--bounce {
	animation-name: bounce;
}
.pl__bottle--in,
.pl__bottle--out {
	animation-name: fade-in;
}
.pl__bottle--in {
	opacity: 0;
}
.pl__bottle--out {
	animation-direction: reverse;
}
.pl__bottle--out ~ .pl__bottle {
	opacity: 0;
}
.pl__bottle-glass,
.pl__cap,
.pl__rod {
	stroke: #b89078;
}
.pl__bottle-glass {
	fill: rgba(184, 144, 120, 0.05);
	transition:
		fill var(--trans-dur),
		stroke var(--trans-dur);
}
.pl__bottle-glare {
	stroke: #ffffff;
}
.pl__cap,
.pl__rod {
	transition: stroke var(--trans-dur);
}
.pl__cap {
	fill: #ffffff;
}
.pl__cap--on {
	animation-name: cap-on;
	animation-timing-function: ease-in;
}
.pl__fill {
	fill: #ffaa00;
	stroke: #e4f4f4;
	stroke-width: 4px;
}
.pl__fill--full {
	animation-name: fill-up-full;
}
.pl__fill--half {
	animation-name: fill-up-half;
}
.pl__fill--startle1 {
	animation-name: fill-startle1;
}
.pl__fill--startle2 {
	animation-name: fill-startle2;
}
.pl__rod {
	animation-name: down-up;
}

/* Dark theme */
@media (prefers-color-scheme: dark) {
	:root {
		--bg: #303030;
		--fg: #e5e5e5;
	}
	.pl__bottle-glass,
	.pl__cap,
	.pl__rod {
		stroke: #7d99ab;
	}
	.pl__bottle-glass {
		fill: rgba(125, 153, 171, 0.05);
	}
}
/* Animations */
@keyframes bounce {
	from,
	50%,
	to {
		animation-timing-function: ease-out;
		transform: translate(56px,0) scale(1,1);
	}
	66.7% {
		animation-timing-function: ease-in;
		transform: translate(56px,0) scale(1.1,0.9);
	}
	83.3% {
		animation-timing-function: ease-out;
		transform: translate(56px,0) scale(0.95,1.05);
	}
}
@keyframes cap-on {
	from { transform: translate(0,0); }
	50%,
	to { transform: translate(0,23px); }
}
@keyframes fill-startle1 {
	from { transform: translate(0,8px); }
	to { transform: translate(-20px,8px); }
}
@keyframes fill-startle2 {
	from { transform: translate(-20px,8px); }
	25% { transform: translate(-30px,8px); }
	to { transform: translate(0,8px); }
}
@keyframes fill-up-half {
	from { transform: translate(-30px,56px); }
	to { transform: translate(-15px,32px); }
}
@keyframes fill-up-full {
	from { transform: translate(-15px,32px); }
	to { transform: translate(0,8px); }
}
@keyframes move-right {
	from { transform: translate(0,24px); }
	to { transform: translate(28px,24px); }
}
@keyframes fade-in {
	from { opacity: 0; }
	to { opacity: 1; }
}
@keyframes down-up {
	from,
	to {
		animation-timing-function: ease-in;
		transform: translate(0,0);
	}
	50% {
		animation-timing-function: ease-out;
		transform: translate(0,24px);
	}
	66.7% {
		animation-timing-function: ease-in;
		transform: translate(0,31px);
	}
}