.button {
	position: relative;
	display: inline-flex;
	min-width: 13rem;
	min-height: 4rem;
	align-items: center;
	justify-content: center;
	gap: 1.5rem;
	padding: 1rem 1.25rem;
	overflow: hidden;
	border: 1px solid transparent;
	border-radius: 0.75rem;
	font-family: inherit;
	font-size: 0.78rem;
	font-weight: 700;
	line-height: 1.2;
	letter-spacing: 0.06em;
	text-align: center;
	text-decoration: none;
	text-transform: uppercase;
	cursor: pointer;
	touch-action: manipulation;
	transition:
		transform var(--transition-base),
		background-color var(--transition-base),
		color var(--transition-base),
		border-color var(--transition-base),
		box-shadow var(--transition-fast);
}

/*
 * Focus da tastiera.
 * Il doppio contorno resta visibile sia su sfondi
 * chiari sia su sfondi scuri.
 */
.button:focus-visible {
	outline: 3px solid var(--color-white);
	outline-offset: 3px;
	box-shadow: 0 0 0 6px var(--color-dark);
}

.button:active {
	transform: translateY(0);
}

/*
 * Pulsanti disabilitati.
 */
.button:disabled,
.button[aria-disabled="true"] {
	cursor: not-allowed;
	opacity: 0.55;
	pointer-events: none;
	transform: none;
}

/*
 * Variante primaria.
 */
.button--primary {
	background: var(--color-accent);
	color: var(--color-white);
}

/*
 * Variante trasparente su sfondo scuro.
 */
.button--ghost {
	border-color: rgba(255, 255, 255, 0.65);
	background: rgba(16, 16, 16, 0.45);
	color: var(--color-white);
	-webkit-backdrop-filter: blur(8px);
	backdrop-filter: blur(8px);
}

/*
 * Variante scura.
 */
.button--dark {
	background: var(--color-dark);
	color: var(--color-white);
}

/*
 * Variante chiara.
 */
.button--light {
	background: var(--color-white);
	color: var(--color-dark);
}

/*
 * Variante con solo contorno chiaro.
 */
.button--outline-light {
	border-color: rgba(255, 255, 255, 0.75);
	background: transparent;
	color: var(--color-white);
}

/*
 * Hover soltanto sui dispositivi che dispongono
 * realmente di mouse o puntatore preciso.
 */
@media (hover: hover) and (pointer: fine) {
	.button:hover {
		transform: translateY(-3px);
	}

	.button--primary:hover {
		background: var(--color-light);
		color: var(--color-dark);
	}

	.button--ghost:hover {
		border-color: var(--color-white);
		background: var(--color-white);
		color: var(--color-dark);
	}

	.button--dark:hover {
		background: var(--color-accent);
		color: var(--color-white);
	}

	.button--light:hover {
		background: var(--color-dark);
		color: var(--color-white);
	}

	.button--outline-light:hover {
		background: var(--color-white);
		color: var(--color-dark);
	}
}

/*
 * Contrasto elevato di Windows.
 */
@media (forced-colors: active) {
	.button {
		border: 2px solid ButtonText;
	}

	.button:focus-visible {
		outline: 3px solid Highlight;
		box-shadow: none;
	}
}

/*
 * Movimento ridotto.
 */
@media (prefers-reduced-motion: reduce) {
	.button {
		transition: none;
	}

	.button:hover,
	.button:active {
		transform: none;
	}
}