:root {
	--color-background: #000;
	--color-foreground: #fff;
	--font-weight-bold: 800;
}

* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	font-family: sans-serif;
}

#main {
	align-items: center;
	background-color: var(--color-background);
	display: flex;
	height: 100vh;
	justify-content: center;
	width: 100%;
}

.container {
	align-items: center;
	display: flex;
	flex-direction: column;
	gap: 1.5rem;
	justify-content: center;
	padding: 2rem;
}

#input-area {
	display: flex;
	gap: 1rem;
}

.label {
	align-items: center;
	color: var(--color-foreground);
	display: flex;
	flex-direction: column;
	font-size: 1rem;
	font-weight: var(--font-weight-bold);
	gap: 0.5rem;
	text-transform: uppercase;
}

.input {
	background-color: transparent;
	border: none;
	text-align: center;
	width: 3ch;
}

.primary-title {
	font-size: 4rem;
}

.title {
	color: var(--color-foreground);
	font-weight: var(--font-weight-bold);
}

.primary-button {
	background-color: var(--color-foreground);
	color: var(--color-background);
}

.tertiary-button {
	border: 1px solid var(--color-foreground);
}

.primary-button,
.tertiary-button {
	border: none;
}

.secondary-button,
.tertiary-button {
	background-color: transparent;
	color: var(--color-foreground);
}

.button {
	align-items: center;
	border-radius: 1.5rem;
	cursor: pointer;
	display: flex;
	font-size: 1rem;
	font-weight: var(--font-weight-bold);
	justify-content: center;
	padding-block: 0.75rem;
	padding-inline: 1.5rem;
}

#display {
	display: none;
}

#controls {
	align-items: center;
	display: flex;
	gap: 1rem;
	transition: opacity 1.2s;
}