.footer {
	position: fixed;
	bottom: 0;
	width: 100%;
	height: 2em;
	line-height: 2em;
	background-color: #f5f5f5;
}

.narrow-card {
	background: #f7f7f7;
	box-shadow: 0px 2px 2px rgba(0, 0, 0, 0.3);
	padding: 30px;
}

.qrcode {
	background: #ffffff;
}

@media (prefers-color-scheme: dark) {
	.footer {
		background-color: #23282d;
	}

	.narrow-card {
		background: #292e33;
	}

	a {
		color: #3395ff;
		background-color: transparent
	}
	a:hover {
		color: #0d82ff
	}

	.btn-link {
		color: #3395ff;
	}
	.btn-link:hover {
		color: #0d82ff;
	}
	.btn-link.disabled,
	.btn-link:disabled {
		color: #3395ff;
	}

	/* Dark theme breaks spinners (appears as full ring without animation) */
	.spinner-border {
		display: inline-block;
		width: 2rem;
		height: 2rem;
		vertical-align: text-bottom;
		border: 0.25em solid currentColor;
		border-right-color: transparent;
		border-radius: 50%;
		-webkit-animation: spinner-border .75s linear infinite;
		animation: spinner-border .75s linear infinite;
	}
	.spinner-border-sm {
		width: 1rem;
		height: 1rem;
		border-width: 0.2em;
	}
}