.ct-calc {
	display: inline-block;
	min-width: 260px;
	max-width: 100%;
	padding: 18px 20px;
	border: 1px solid rgba(0, 0, 0, 0.1);
	border-radius: 8px;
	background: #fff;
	box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
	box-sizing: border-box;
}

.ct-calc-field {
	display: flex;
	flex-direction: column;
	gap: 4px;
	margin-bottom: 12px;
}

.ct-calc-field label {
	font-size: 12px;
	font-weight: 600;
	opacity: 0.7;
}

.ct-calc-field select,
.ct-calc-field input {
	padding: 8px 10px;
	border: 1px solid rgba(0, 0, 0, 0.15);
	border-radius: 6px;
	font-size: 14px;
	width: 100%;
	box-sizing: border-box;
}

.ct-calc-result {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding-top: 12px;
	margin-top: 4px;
	border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.ct-calc-result-label {
	font-size: 13px;
	opacity: 0.7;
}

.ct-calc-result-value {
	font-size: 22px;
	font-weight: 700;
	color: #1a7f37;
}

.ct-calc-result-value--empty {
	color: inherit;
	opacity: 0.4;
}

/* Fullscreen, full-width layout on mobile devices */
@media (max-width: 768px) {
	.ct-calc {
		display: flex;
		flex-direction: column;
		justify-content: center;
		width: 100vw;
		min-height: 100vh;
		min-height: 100dvh;
		margin: 0;
		margin-left: calc(50% - 50vw);
		padding: 24px 20px;
		border: none;
		border-radius: 0;
		box-shadow: none;
	}

	.ct-calc-field {
		gap: 6px;
		margin-bottom: 18px;
	}

	.ct-calc-field label {
		font-size: 14px;
	}

	.ct-calc-field select,
	.ct-calc-field input {
		padding: 14px 12px;
		font-size: 16px; /* prevents iOS auto-zoom on focus */
		border-radius: 8px;
	}

	.ct-calc-result {
		padding-top: 18px;
		margin-top: 8px;
	}

	.ct-calc-result-label {
		font-size: 15px;
	}

	.ct-calc-result-value {
		font-size: 28px;
	}
}