<div class="container">
	<ul class="list">
		<li class="list__item">
			<input type="radio" class="radio-btn" name="choice" id="a-opt" />
			<label for="a-opt" class="label">pick me!</label>
		</li>
		
		<li class="list__item">
			<input type="radio" class="radio-btn" name="choice" id="b-opt" />
			<label for="b-opt" class="label">pick me i'm better!</label>
		</li>
		
		<li class="list__item">
			<input type="radio" class="radio-btn" name="choice" id="c-opt" />
			<label for="c-opt" class="label">pick me i'm the best!</label>
		</li>
		
		<li class="list__item">
			<input type="radio" class="radio-btn" name="choice" id="d-opt" />
			<label for="d-opt" class="label">pick me i'm fabulous!</label>
		</li>
	</ul>
</div>

$primary-color: #fff;
$accent-color: #009688;

* {
	box-sizing: border-box;
	padding: 0;
	margin: 0;
}

body {
	font-family: "Roboto", sans-serif;
	background: linear-gradient(to right bottom, #1b1b1e, #333);
}

.container {
	display: flex;
	justify-content: center;
	align-items: center;
	min-height: 100vh;
}

.list {
	flex: 0 0 20rem;
}

.list__item {
	position: relative;
	&:hover > .label {
		color: $accent-color;
		&::before {
			border: 0.5rem solid $accent-color;
			margin-right: 2rem;
		}
	}
}

.radio-btn {
	position: absolute;
	opacity: 0;
	visibility: hidden;
	&:checked + .label {
		color: $accent-color;
		&::before {
			margin-right: 2rem;
			border: 0.5rem solid $accent-color;
			background: $primary-color;
		}
	}
}

.label {
	display: flex;
	align-items: center;
	padding: 0.75rem 0;
	color: $primary-color;
	font-size: 1.25rem;
	text-transform: uppercase;
	cursor: pointer;
	transition: all 0.25s linear;
}

.label::before {
	display: inline-block;
	content: "";
	height: 1.125rem;
	width: 1.125rem;
	margin-right: 0.625rem;
	border: 0.5rem solid $primary-color;
	border-radius: 50%;
	transition: all 0.25s linear;
}