@import url('https://fonts.googleapis.com/css?family=Inter:400,700');

:root {
	--slate-50: #f8fafc;
	--slate-100: #f1f5f9;
	--slate-200: #e2e8f0;
	--slate-300: #cbd5e1;
	--slate-400: #94a3b8;
	--slate-500: #64748b;
	--slate-600: #475569;
	--slate-700: #334155;
	--slate-800: #1e293b;
	--slate-900: #0f172a;

	--lime-400: #a3e635;
}

* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	font-synthesis: none;
	text-rendering: optimizeLegibility;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	-webkit-text-size-adjust: 100%;
}

body {
	background-color: var(--slate-900);
}

body * {
	font-family: 'Inter', sans-serif;
	line-height: 1.5;
}

main {
	max-width: 1140px;
	margin: 0 auto 64px;
	padding: 1.25rem;
}

header {
	margin-top: 64px;
	padding-bottom: 24px;
	border-bottom: 1px solid var(--slate-700);
}

header img {
	width: 100%;
	max-width: 200px;
}

header h1 {
	margin-top: 24px;
	font-size: 1.875rem;
	color: var(--slate-100);
}

#quiz {
	counter-reset: quiz-item;
}

.quiz-item {
	margin-block: 24px;
	border: 1px solid var(--slate-600);
	border-radius: 6px;

	overflow: hidden;
}

.quiz-item h3 {
	font-size: 1.125rem;
	color: var(--slate-200);
	font-weight: 700;
	background-color: var(--slate-800);
	padding: 16px 20px;

	display: flex;
	align-items: center;
	gap: 12px;
}

.quiz-item h3::before {
	counter-increment: quiz-item;
	content: counter(quiz-item);
	font-size: 0.75rem;
	background-color: var(--slate-700);
	width: 28px;
	height: 28px;
	flex-shrink: 0;

	display: flex;
	align-items: center;
	justify-content: center;
	border-radius: 50%;
}

.quiz-item dl {
	padding: 20px 24px;
	background-color: var(--slate-700);

	display: flex;
	flex-direction: column;
	gap: 8px;
}

.quiz-item dl dt {
	font-size: 0.875rem;
	line-height: 24px;
	letter-spacing: 0;

	display: flex;
	align-items: center;
	gap: 8px;

	color: var(--slate-200);
}

input {
	all: unset;

	border: 1px solid var(--slate-400);
	width: 16px;
	height: 16px;

	display: flex;
	align-items: center;
	justify-content: center;

	border-radius: 50%;
	flex-shrink: 0;
}

input:checked {
	border-color: var(--lime-400);
}

input:checked::before {
	content: '';
	width: 10px;
	height: 10px;

	background-color: var(--lime-400);
	border-radius: 50%;
}

#score {
	text-align: center;
	background-color: var(--lime-400);

	position: fixed;
	bottom: 0;
	left: 0;

	width: 100%;
	padding: 12px;
}

#score * {
	color: black;
}