.demo__lead code {
	padding: 0.1rem 0.4rem;
	background: var(--surface);
	border-radius: 4px;
	font-size: 0.85em;
}

.stage {
	grid-template-columns: minmax(0, 1fr); /* senza, la larghezza in % dell'arco collassa */
	gap: 1.25rem;
	min-height: 15rem;
	padding-top: 5.5rem; /* sopra l'arco vive il cartellino con il valore */
	padding-bottom: 2.5rem;
}

.arc {
	position: relative;
	width: min(100%, 34rem);
	cursor: pointer;
	touch-action: pan-y;
	user-select: none;
	-webkit-user-select: none;
	-webkit-tap-highlight-color: transparent;
}
.arc--short {
	width: min(100%, 26rem);
}

/* L'input vero sta sotto, invisibile ma raggiungibile da tastiera. */
.arc__input {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	margin: 0;
	opacity: 0;
	pointer-events: none;
}

.arc__svg {
	display: block;
	width: 100%;
	height: auto;
	overflow: visible;
}
.arc__track {
	stroke-width: 7px;
	stroke-linecap: round;
	vector-effect: non-scaling-stroke;
}

.arc__thumb {
	--color: #f3d970;
	position: absolute;
	z-index: 1;
	display: grid;
	place-items: center;
	width: 2rem;
	height: 2rem;
	translate: -50% -50%;
	background-image: linear-gradient(to bottom, #f4f4f6, #cfd0d6);
	border-radius: 50%;
	box-shadow: 0 2px 6px rgb(0 0 0 / 0.55);
	pointer-events: none;
	transition: scale 0.15s var(--ease-out);
}
.arc__thumb::before {
	content: '';
	width: 68%;
	height: 68%;
	background-color: var(--color);
	border-radius: 50%;
	box-shadow: inset 0 -3px 3px rgb(0 0 0 / 0.18);
}
.arc.is-dragging .arc__thumb {
	scale: 1.12;
}
.arc:has(.arc__input:focus-visible) .arc__thumb {
	outline: 2px solid var(--accent);
	outline-offset: 3px;
}

.arc__pill {
	position: absolute;
	bottom: calc(100% + 0.7rem);
	padding: 0.25rem 0.8rem;
	font: 600 0.85rem var(--font-text);
	font-variant-numeric: tabular-nums;
	white-space: nowrap;
	color: var(--text);
	background: #0e0e0e;
	border: 1px solid var(--line);
	border-radius: 2rem;
	box-shadow: 0 2px 8px rgb(0 0 0 / 0.4);
}

.arc__caption {
	margin: 0;
	min-height: 1.5em;
	font-size: 0.9rem;
	color: var(--muted);
}