/**
 * Tier pricing — "buy more, save more" deals card on the PDP.
 * Sits above the quantity selector. Selectable full-width rows with a radio
 * dot, per-unit price, and savings badge. Mobile-first, RTL-native (logical
 * properties), matches ASI tokens. See inc/single-product/tier-pricing.php.
 */

.asi-tiers {
	--at-surface: color-mix(in srgb, var(--wp--preset--color--accent-3, #f8fafc) 88%, #fff);
	--at-card: #fff;
	--at-ink: var(--wp--preset--color--contrast, #0f172a);
	--at-blue: var(--wp--preset--color--accent-1, #0155b7);
	--at-green: #1a7f37;
	--at-green-bright: var(--wp--preset--color--accent-2, #72b94a);
	--at-orange: var(--wp--preset--color--warm-orange, #f59e0b);
	--at-muted: var(--wp--preset--color--accent-4, #5a6b82);
	--at-line: color-mix(in srgb, var(--at-ink) 11%, transparent);
	--at-line-strong: color-mix(in srgb, var(--at-blue) 28%, transparent);
	--at-radius: var(--asi-radius, 16px);
	--at-radius-sm: 12px;
	--at-ease: cubic-bezier(.22, 1, .36, 1);
	--at-t: 220ms var(--at-ease);

	border: 1px solid var(--at-line);
	border-radius: var(--at-radius);
	background: var(--at-surface);
	padding-block: .95rem 1rem;
	padding-inline: .95rem;
	margin-block: 0 1.25rem;
	max-inline-size: 460px;
}

.asi-tiers--empty {
	display: none;
}

.asi-tiers__head {
	display: flex;
	align-items: baseline;
	gap: .5rem;
	margin-block-end: .7rem;
	padding-inline: .15rem;
}

.asi-tiers__title {
	font-size: .95rem;
	font-weight: 600;
	margin: 0;
	display: flex;
	align-items: center;
	gap: .45rem;
	color: var(--at-ink);
}

.asi-tiers__title svg {
	flex: none;
	color: var(--at-green-bright);
}

.asi-tiers__hint {
	font-size: .72rem;
	color: var(--at-muted);
	margin-inline-start: auto;
}

/* ---- rows ---- */
.asi-tier {
	display: grid;
	grid-template-columns: auto 1fr auto;
	align-items: center;
	gap: .12rem .8rem;
	inline-size: 100%;
	text-align: start;
	font: inherit;
	color: var(--at-ink);
	background: var(--at-card);
	border: 1.5px solid var(--at-line);
	border-radius: var(--at-radius-sm);
	padding: .8rem;
	cursor: pointer;
	transition: border-color var(--at-t), box-shadow var(--at-t), background var(--at-t), transform var(--at-t);
}

.asi-tier + .asi-tier {
	margin-block-start: .55rem;
}

.asi-tier:hover {
	border-color: var(--at-line-strong);
	box-shadow: var(--asi-shadow-sm, 0 1px 2px rgba(15, 23, 42, .05));
}

.asi-tier:active {
	transform: scale(.992);
}

.asi-tier:focus-visible {
	outline: 2px solid var(--at-blue);
	outline-offset: 2px;
}

/* radio dot */
.asi-tier__dot {
	grid-row: 1 / span 2;
	inline-size: 20px;
	block-size: 20px;
	border-radius: 50%;
	border: 2px solid var(--at-line-strong);
	display: grid;
	place-items: center;
	transition: var(--at-t);
}

.asi-tier__dot::after {
	content: "";
	inline-size: 8px;
	block-size: 8px;
	border-radius: 50%;
	background: var(--at-blue);
	transform: scale(0);
	transition: transform var(--at-t);
}

.asi-tier__qty {
	font-size: .98rem;
	font-weight: 600;
	line-height: 1.15;
	display: flex;
	align-items: center;
	gap: .5rem;
	flex-wrap: wrap;
}

.asi-tier__per {
	grid-column: 2;
	font-size: .73rem;
	color: var(--at-muted);
}

.asi-tier__price {
	font-size: 1.02rem;
	font-weight: 700;
	color: var(--at-blue);
	line-height: 1.15;
	text-align: end;
	white-space: nowrap;
}

.asi-tier__save {
	grid-column: 3;
	justify-self: end;
	margin-block-start: .15rem;
	font-size: .7rem;
	font-weight: 700;
	color: var(--at-green);
	background: color-mix(in srgb, var(--at-green-bright) 16%, #fff);
	border: 1px solid color-mix(in srgb, var(--at-green-bright) 30%, transparent);
	padding-block: .16rem;
	padding-inline: .5rem;
	border-radius: 100px;
	white-space: nowrap;
}

.asi-tier__best {
	font-size: .6rem;
	font-weight: 800;
	letter-spacing: .08em;
	text-transform: uppercase;
	color: #fff;
	background: var(--at-orange);
	padding-block: .18rem;
	padding-inline: .44rem;
	border-radius: 6px;
	line-height: 1;
}

/* ---- active (selected) ---- */
.asi-tier[aria-pressed="true"] {
	border-color: var(--at-blue);
	background: color-mix(in srgb, var(--at-blue) 5%, #fff);
	box-shadow: 0 8px 22px rgba(1, 85, 183, .14);
}

.asi-tier[aria-pressed="true"] .asi-tier__dot {
	border-color: var(--at-blue);
}

.asi-tier[aria-pressed="true"] .asi-tier__dot::after {
	transform: scale(1);
}

/* ---- unavailable (not enough stock for this quantity) ---- */
.asi-tier--oos {
	opacity: .45;
	cursor: not-allowed;
	filter: grayscale(.5);
}

.asi-tier--oos:hover {
	border-color: var(--at-line);
	box-shadow: none;
}

/* ---- entrance ---- */
@keyframes asi-tier-rise {
	from { opacity: 0; transform: translateY(8px); }
	to   { opacity: 1; transform: none; }
}

.asi-tiers,
.asi-tier {
	animation: asi-tier-rise .5s var(--at-ease) both;
}

.asi-tier:nth-child(2) { animation-delay: .06s; }
.asi-tier:nth-child(3) { animation-delay: .12s; }
.asi-tier:nth-child(4) { animation-delay: .18s; }

/* Tajawal needs a touch more vertical room. */
.asi-tiers:lang(ar) .asi-tier__qty,
.asi-tiers:lang(ar) .asi-tiers__title {
	line-height: 1.3;
}

@media (prefers-reduced-motion: reduce) {
	.asi-tiers,
	.asi-tier {
		animation: none;
	}
	.asi-tier,
	.asi-tier__dot,
	.asi-tier__dot::after {
		transition-duration: 1ms;
	}
}