.btn {
	background: var(--paper);
	border: var(--border-width) solid var(--border);
	color: var(--border);
	padding: 8px 16px;
	font-weight: bold;
	cursor: pointer;
	/* Hard shadow khas interface e-ink jadul */
	box-shadow: 3px 3px 0px 0px #1a1a1a; 
	transition: all 0.1s ease;
	border-radius: 8px;
}
.btn:active {
	/* Efek ditekan */
	box-shadow: 0px 0px 0px 0px #1a1a1a;
	transform: translate(3px, 3px);
}