body {
	font: 100% system-ui;
	max-width: 100rem;
	margin: 1em auto;
	padding: 0 1em;
}

header h1 {
	margin-bottom: 0.5em;
}

@media (width > 1100px) {
	body {
		display: grid;
		grid-template-columns: 1fr auto;
		gap: 0 2em;
	}

	header, #inputs {
		grid-column: 1 / -1;
	}

	#results {
		grid-template-columns: 1fr;
	}
}

/* --- Color inputs --- */

#inputs {
	display: flex;
	align-items: end;
	gap: 1em;
	flex-wrap: wrap;
}

.color-input {
	flex: 1;
	display: flex;
	flex-direction: column;
	gap: 0.3em;

	> label {
		font-weight: 600;
		font-size: 0.85em;
		text-transform: uppercase;
		letter-spacing: 0.05em;
		color: light-dark(hsl(0 0% 40%), hsl(0 0% 60%));
	}
}

.swap {
	font-size: 1.5em;
	background: none;
	border: 1px solid light-dark(hsl(0 0% 80%), hsl(0 0% 40%));
	border-radius: 50%;
	width: 2em;
	height: 2em;
	cursor: pointer;
	display: grid;
	place-content: center;
	align-self: center;
	margin-block-start: 1em;
	transition: background-color 0.15s;

	&:hover {
		background: light-dark(hsl(0 0% 93%), hsl(0 0% 25%));
	}

	&:active {
		background: light-dark(hsl(0 0% 87%), hsl(0 0% 20%));
	}
}

/* --- Preview --- */

#preview {
	margin-block-start: 1.5em;
	border-radius: 0.5em;
	overflow: hidden;
	border: 1px solid light-dark(hsl(0 0% 85%), hsl(0 0% 30%));

	&.translucent {
		background-image:
			linear-gradient(45deg, #ccc 25%, transparent 25%),
			linear-gradient(-45deg, #ccc 25%, transparent 25%),
			linear-gradient(45deg, transparent 75%, #ccc 75%),
			linear-gradient(-45deg, transparent 75%, #ccc 75%);
		background-size: 16px 16px;
		background-position: 0 0, 0 8px, 8px -8px, -8px 0;
	}
}

.preview-content {
	padding: 1.5em 2em;

	> h2 {
		font-size: 1.75em;
		margin: 0 0 0.4em;
	}

	> p {
		margin: 0 0 0.6em;
		line-height: 1.6;
	}

	.small {
		font-size: 0.75em;
	}
}

.sample-button {
	background: transparent;
	border: 1.5px solid;
	border-radius: 0.3em;
	padding: 0.2em 0.7em;
	font: inherit;
	font-size: 0.9em;
	cursor: pointer;
}

/* --- Results --- */

#results {
	margin-block-start: 1.5em;
	display: grid;
	gap: 1.5em;

	@media (width > 700px) {
		grid-template-columns: 1fr 1fr;
	}
}

.algorithm {
	border: 1px solid light-dark(hsl(0 0% 85%), hsl(0 0% 30%));
	border-inline-start: 4px solid var(--indicator, light-dark(hsl(0 0% 85%), hsl(0 0% 30%)));
	border-radius: 0.5em;
	padding: 1.2em 1.5em;

	> h2 {
		margin: 0 0 0.2em;
		font-size: 0.8em;
		text-transform: uppercase;
		letter-spacing: 0.08em;
		color: light-dark(hsl(0 0% 40%), hsl(0 0% 60%));
	}

	> .ratio {
		font-size: 2em;
		font-weight: 700;
		margin-block-end: 0.6em;
	}
}

.levels {
	display: flex;
	flex-direction: column;
	gap: 0.35em;
}

.level {
	display: flex;
	align-items: center;
	gap: 0.5em;
	padding: 0.35em 0.6em;
	border-radius: 0.3em;
	background: light-dark(hsl(0 0% 95%), hsl(0 0% 15%));

	&::before {
		content: "✗";
		color: oklch(63% 0.22 27);
		font-weight: bold;
		flex-shrink: 0;
	}

	&.pass::before {
		content: "✓";
		color: oklch(65% 0.19 145);
	}

	&.partial::before {
		content: "~";
		color: oklch(75% 0.15 65);
	}

	.badge {
		font-weight: 700;
		font-size: 0.85em;
		min-width: 5em;
	}

	.description {
		font-size: 0.85em;
		color: light-dark(hsl(0 0% 40%), hsl(0 0% 60%));
	}

	.font {
		font-size: 0.8em;
		color: light-dark(hsl(0 0% 50%), hsl(0 0% 50%));
		margin-inline-start: auto;
	}

	.pct {
		font-size: 0.8em;
		font-weight: 600;
		color: oklch(75% 0.15 65);
		margin-inline-start: auto;
	}
}

.alpha-note {
	grid-column: 1 / -1;
	font-size: 0.85em;
	color: light-dark(hsl(0 0% 40%), hsl(0 0% 60%));
	font-style: italic;
	margin: 0;
}