/**
 * Guocera Batch Stock — modal (smooth, aesthetic, mobile-first).
 *
 * @package Guocera_Batch_Stock
 */

/* ------------------------------------------------------------------------- */
/* Cart page: unavailable-line highlight (Update Cart pre-flight check) */
/* ------------------------------------------------------------------------- */
.woocommerce-cart-form tr.gbs-cart-unavailable > td {
	background: #fff5f5 !important;
}
.woocommerce-cart-form tr.gbs-cart-unavailable {
	box-shadow: inset 4px 0 0 #e2401c;
}
.gbs-cart-unavailable-msg {
	display: block;
	margin-top: 6px;
	color: #e2401c;
	font-size: 0.85em;
	font-weight: 600;
	line-height: 1.3;
}

/* Update Cart button: consistent readable styling in every state (override theme).
   The theme turns the text white on focus/active/loading without a dark background,
   leaving white-on-light (invisible) text after clicking. Pin a solid dark button
   with white text across all states so it is always readable. */
.woocommerce-cart-form button[name="update_cart"],
.woocommerce-cart-form input[name="update_cart"],
.woocommerce .cart button[name="update_cart"],
.woocommerce .cart input[name="update_cart"] {
	background-color: #1a1a1a !important;
	color: #ffffff !important;
	border-color: #1a1a1a !important;
	opacity: 1 !important;
	cursor: pointer !important;
	pointer-events: auto !important;
	transition: background-color 0.15s ease, transform 0.05s ease;
}
.woocommerce-cart-form button[name="update_cart"]:hover,
.woocommerce-cart-form input[name="update_cart"]:hover,
.woocommerce-cart-form button[name="update_cart"]:focus,
.woocommerce-cart-form input[name="update_cart"]:focus,
.woocommerce-cart-form button[name="update_cart"].loading,
.woocommerce .cart button[name="update_cart"]:hover,
.woocommerce .cart input[name="update_cart"]:hover,
.woocommerce .cart button[name="update_cart"]:focus,
.woocommerce .cart input[name="update_cart"]:focus,
.woocommerce .cart button[name="update_cart"].loading {
	background-color: #000000 !important;
	color: #ffffff !important;
	border-color: #000000 !important;
}
.woocommerce-cart-form button[name="update_cart"]:active,
.woocommerce-cart-form input[name="update_cart"]:active,
.woocommerce .cart button[name="update_cart"]:active,
.woocommerce .cart input[name="update_cart"]:active {
	transform: translateY(1px);
}
.woocommerce-cart-form button[name="update_cart"]:disabled,
.woocommerce-cart-form button[name="update_cart"][disabled],
.woocommerce-cart-form input[name="update_cart"]:disabled,
.woocommerce-cart-form input[name="update_cart"][disabled],
.woocommerce .cart button[name="update_cart"]:disabled,
.woocommerce .cart input[name="update_cart"]:disabled {
	opacity: 0.45 !important;
	cursor: not-allowed !important;
	pointer-events: none !important;
	transform: none !important;
}

/* Checkout cart: Update Cart button attention state when there are unsaved changes. */
.checkout-cart button[name="update_cart"].gbs-needs-update,
.checkout-cart input[name="update_cart"].gbs-needs-update,
.woocommerce-cart-form button[name="update_cart"].gbs-needs-update,
.woocommerce-cart-form input[name="update_cart"].gbs-needs-update {
	animation: gbs-update-pulse 1.1s ease-in-out infinite;
	box-shadow: 0 0 0 0 rgba(226, 64, 28, 0.5);
}
.gbs-cart-proceed-error {
	display: block;
	margin: 0 0 14px;
	padding: 12px 14px;
	background: #fdeaea;
	border: 1px solid #e2401c;
	border-left-width: 4px;
	border-radius: 4px;
	color: #8f1d1d;
	font-size: 0.9em;
	font-weight: 600;
	line-height: 1.4;
}
@keyframes gbs-update-pulse {
	0%   { box-shadow: 0 0 0 0 rgba(226, 64, 28, 0.45); }
	70%  { box-shadow: 0 0 0 10px rgba(226, 64, 28, 0); }
	100% { box-shadow: 0 0 0 0 rgba(226, 64, 28, 0); }
}
.gbs-checkout-cart-error {
	margin-bottom: 16px;
}
/* Checkout cart row flagged for removal (applied on Update Cart). */
.checkout-cart tr.gbs-cart-pending-remove > td {
	opacity: 0.5;
	text-decoration: line-through;
}
.checkout-cart tr.gbs-cart-pending-remove .cartitem-remove a.remove {
	text-decoration: none;
}

/* Checking / updating overlay */
.gbs-cart-overlay {
	position: fixed;
	inset: 0;
	z-index: 99999;
	display: none;
	align-items: center;
	justify-content: center;
	background: rgba(255, 255, 255, 0.72);
	backdrop-filter: blur(2px);
}
.gbs-cart-overlay.is-visible {
	display: flex;
}
.gbs-cart-overlay__box {
	display: flex;
	align-items: center;
	gap: 14px;
	padding: 20px 28px;
	background: #fff;
	border-radius: 10px;
	box-shadow: 0 8px 30px rgba(0, 0, 0, 0.18);
	font-size: 1rem;
	font-weight: 600;
	color: #1a1a1a;
}
.gbs-cart-overlay__spinner {
	width: 24px;
	height: 24px;
	border: 3px solid rgba(0, 0, 0, 0.15);
	border-top-color: #000;
	border-radius: 50%;
	animation: gbs-cart-spin 0.7s linear infinite;
	flex: 0 0 auto;
}
@keyframes gbs-cart-spin {
	to { transform: rotate(360deg); }
}

/* ------------------------------------------------------------------------- */
/* Minimal black & white */
/* ------------------------------------------------------------------------- */
.guocera-batch-stock-modal {
	--gbs-accent: #000000;
	--gbs-accent-hover: #1a1a1a;
	--gbs-accent-soft: #f5f5f5;
	--gbs-accent-ring: rgba(0, 0, 0, 0.2);
	--gbs-bg: #ffffff;
	--gbs-surface: #ffffff;
	--gbs-text: #000000;
	--gbs-text-muted: #666666;
	--gbs-border: #e0e0e0;
	--gbs-backdrop: rgba(0, 0, 0, 0.4);
	--gbs-error: #000000;
	--gbs-warning-bg: #f5f5f5;
	--gbs-warning-border: #000000;
	--gbs-warning-text: #000000;
	--gbs-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
	--gbs-radius: 8px;
	--gbs-radius-sm: 6px;
	--gbs-font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
	--gbs-safe-bottom: env(safe-area-inset-bottom, 0px);
	--gbs-safe-top: env(safe-area-inset-top, 0px);
}

body.gbs-modal-open {
	overflow: hidden;
	touch-action: none;
}

/* ------------------------------------------------------------------------- */
/* Shell + open animation */
/* ------------------------------------------------------------------------- */
.guocera-batch-stock-modal {
	position: fixed;
	inset: 0;
	z-index: 100000;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: max(16px, var(--gbs-safe-top)) 16px calc(16px + var(--gbs-safe-bottom));
	box-sizing: border-box;
	font-family: var(--gbs-font);
	opacity: 0;
	visibility: hidden;
	transition: opacity 0.28s ease, visibility 0.28s ease;
}

.guocera-batch-stock-modal.is-open {
	opacity: 1;
	visibility: visible;
}

.guocera-batch-stock-modal__backdrop {
	position: absolute;
	inset: 0;
	background: var(--gbs-backdrop);
	cursor: pointer;
	opacity: 0;
	transition: opacity 0.3s ease;
}

.guocera-batch-stock-modal.is-open .guocera-batch-stock-modal__backdrop {
	opacity: 1;
}

.guocera-batch-stock-modal__content {
	position: relative;
	background: var(--gbs-surface);
	border-radius: var(--gbs-radius);
	width: 100%;
	max-width: 480px;
	max-height: min(88vh, 720px);
	display: flex;
	flex-direction: column;
	box-shadow: var(--gbs-shadow);
	color: var(--gbs-text);
	overflow: hidden;
	border: 1px solid var(--gbs-border);
	transform: scale(0.96) translateY(12px);
	opacity: 0;
	transition: transform 0.32s cubic-bezier(0.34, 1.2, 0.64, 1), opacity 0.28s ease;
}

.guocera-batch-stock-modal.is-open .guocera-batch-stock-modal__content {
	transform: scale(1) translateY(0);
	opacity: 1;
}

/* Mobile: bottom sheet */
@media (max-width: 600px) {
	.guocera-batch-stock-modal {
		align-items: flex-end;
		padding: 0;
		padding-bottom: var(--gbs-safe-bottom);
	}

	.guocera-batch-stock-modal__content {
		max-width: none;
		max-height: min(92vh, 100%);
		border-radius: var(--gbs-radius) var(--gbs-radius) 0 0;
		transform: translateY(100%);
	}

	.guocera-batch-stock-modal.is-open .guocera-batch-stock-modal__content {
		transform: translateY(0);
	}
}

/* ------------------------------------------------------------------------- */
/* Header */
/* ------------------------------------------------------------------------- */
.guocera-batch-stock-modal__header {
	flex-shrink: 0;
	padding: 20px 20px 14px;
	padding-right: 52px;
	border-bottom: 1px solid var(--gbs-border);
	background: var(--gbs-surface);
}

.guocera-batch-stock-modal__eyebrow {
	display: flex;
	align-items: center;
	gap: 8px;
	margin: 0 0 6px;
	font-size: 0.6875rem;
	font-weight: 600;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	color: var(--gbs-text-muted);
}

.guocera-batch-stock-modal__eyebrow svg {
	flex-shrink: 0;
	opacity: 0.9;
}

.guocera-batch-stock-modal__title {
	margin: 0;
	font-size: 1.125rem;
	font-weight: 600;
	line-height: 1.3;
	letter-spacing: 0;
	color: var(--gbs-text);
}

.guocera-batch-stock-modal__sku {
	margin: 8px 0 0;
	font-size: 0.8125rem;
	color: var(--gbs-text-muted);
	word-break: break-all;
}

.guocera-batch-stock-modal__sku code {
	background: #fff;
	padding: 2px 8px;
	border-radius: 4px;
	font-size: 0.8em;
	border: 1px solid var(--gbs-border);
	color: var(--gbs-text);
}

/* Close */
.guocera-batch-stock-modal__close {
	position: absolute;
	top: 14px;
	right: 14px;
	width: 40px;
	height: 40px;
	padding: 0;
	border: none;
	background: var(--gbs-bg);
	border-radius: 10px;
	cursor: pointer;
	color: var(--gbs-text-muted);
	display: flex;
	align-items: center;
	justify-content: center;
	transition: background 0.2s, color 0.2s, transform 0.15s;
	z-index: 2;
}

.guocera-batch-stock-modal__close:hover,
.guocera-batch-stock-modal__close:focus {
	background: var(--gbs-border);
	color: var(--gbs-text);
	outline: none;
}

.guocera-batch-stock-modal__close:active {
	transform: scale(0.95);
}

.guocera-batch-stock-modal__close svg {
	width: 20px;
	height: 20px;
}

/* ------------------------------------------------------------------------- */
/* Scroll body */
/* ------------------------------------------------------------------------- */
.guocera-batch-stock-modal__body {
	flex: 1;
	min-height: 0;
	overflow-y: auto;
	overflow-x: hidden;
	-webkit-overflow-scrolling: touch;
	padding: 16px 20px;
	overscroll-behavior: contain;
}

/* Loading */
.guocera-batch-stock-modal__loading {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 20px;
	margin: 0;
	padding: 40px 16px;
	color: var(--gbs-text-muted);
	text-align: center;
}

.guocera-batch-stock-modal__loading-spinner {
	width: 44px;
	height: 44px;
	border: 3px solid var(--gbs-border);
	border-top-color: var(--gbs-accent);
	border-radius: 50%;
	animation: gbs-spin 0.75s linear infinite;
}

@keyframes gbs-spin {
	to { transform: rotate(360deg); }
}

.guocera-batch-stock-modal__loading-text {
	font-size: 0.9375rem;
	margin: 0;
}

/* ------------------------------------------------------------------------- */
/* Checkout highlight when batch becomes invalid */
/* ------------------------------------------------------------------------- */
.gbs-batch-warning {
	outline: 2px solid #000;
	background-color: #f5f5f5;
}

/* Messages */
.guocera-batch-stock-modal__out-of-stock,
.guocera-batch-stock-modal__error {
	margin: 0;
	padding: 16px;
	border-radius: var(--gbs-radius-sm);
	text-align: center;
	font-size: 0.9375rem;
}

.guocera-batch-stock-modal__out-of-stock {
	background: var(--gbs-bg);
	border: 1px dashed var(--gbs-border);
	color: var(--gbs-text-muted);
}

.guocera-batch-stock-modal__error {
	background: #fff;
	color: var(--gbs-text);
	border: 1px solid #000;
}

.guocera-batch-stock-modal__no-fulfill {
	color: var(--gbs-text);
	background: var(--gbs-warning-bg);
	border: 1px solid var(--gbs-border);
	padding: 14px 16px;
	border-radius: var(--gbs-radius-sm);
	margin: 0 0 16px;
	font-size: 0.875rem;
	line-height: 1.45;
}

/* ------------------------------------------------------------------------- */
/* Batch cards */
/* ------------------------------------------------------------------------- */
.guocera-batch-stock-modal__batches {
	display: flex;
	flex-direction: column;
	gap: 10px;
}

.gbs-batch-card {
	display: block;
	position: relative;
	width: 100%;
	text-align: left;
	padding: 14px 16px;
	margin: 0;
	border: 2px solid var(--gbs-border);
	border-radius: var(--gbs-radius-sm);
	background: var(--gbs-surface);
	color: inherit;
	font: inherit;
	cursor: pointer;
	transition: border-color 0.2s, box-shadow 0.2s, transform 0.15s, background 0.2s;
	-webkit-tap-highlight-color: transparent;
	touch-action: manipulation;
}

.gbs-batch-card:hover {
	border-color: var(--gbs-text-muted);
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.gbs-batch-card:focus {
	outline: none;
	box-shadow: 0 0 0 2px #fff, 0 0 0 4px #000;
	border-color: #000;
}

.gbs-batch-card.is-selected {
	border-color: #000;
	background: #fafafa;
	box-shadow: none;
}

.gbs-batch-card:active {
	transform: scale(0.99);
}

.gbs-batch-card__top {
	display: flex;
	align-items: flex-start;
	justify-content: space-between;
	gap: 12px;
	margin-bottom: 8px;
}

.gbs-batch-card__batch {
	font-weight: 700;
	font-size: 1rem;
	letter-spacing: -0.01em;
	word-break: break-all;
	line-height: 1.3;
}

.gbs-batch-card__stock {
	flex-shrink: 0;
	font-size: 0.75rem;
	font-weight: 600;
	padding: 4px 10px;
	border-radius: 4px;
	background: #fff;
	color: var(--gbs-text);
	border: 1px solid var(--gbs-border);
}

.gbs-batch-card__meta {
	display: flex;
	flex-wrap: wrap;
	gap: 6px 14px;
	font-size: 0.8125rem;
	color: var(--gbs-text-muted);
}

.gbs-batch-card__meta span {
	display: inline-flex;
	align-items: center;
	gap: 4px;
}

.gbs-batch-card__check {
	display: none;
	align-items: center;
	justify-content: center;
	position: absolute;
	top: 14px;
	right: 14px;
	width: 26px;
	height: 26px;
	border-radius: 50%;
	background: #000;
	color: #fff;
	border: 1px solid #000;
}

.gbs-batch-card.is-selected .gbs-batch-card__check {
	display: flex;
}

.gbs-batch-card.is-selected {
	padding-right: 48px;
}

.gbs-batch-card.is-selected .gbs-batch-card__stock {
	background: #000;
	color: #fff;
	border-color: #000;
}

/* Hint */
.gbs-batch-hint {
	margin: 0 0 12px;
	font-size: 0.8125rem;
	color: var(--gbs-text-muted);
	line-height: 1.4;
}

.gbs-material-heading {
	margin: 12px 0 8px;
	font-size: 0.8125rem;
	font-weight: 600;
	color: var(--gbs-text-muted);
	line-height: 1.3;
}

.gbs-material-heading:first-child {
	margin-top: 0;
}

/* ------------------------------------------------------------------------- */
/* Sticky footer */
/* ------------------------------------------------------------------------- */
.guocera-batch-stock-modal__footer {
	flex-shrink: 0;
	padding: 16px 20px calc(16px + var(--gbs-safe-bottom));
	background: var(--gbs-surface);
	border-top: 1px solid var(--gbs-border);
	box-shadow: none;
}

.guocera-batch-stock-modal__footer-inner {
	display: flex;
	flex-direction: column;
	gap: 12px;
}

.guocera-batch-stock-modal__selection {
	font-size: 0.8125rem;
	color: var(--gbs-text-muted);
	min-height: 1.25em;
}

.guocera-batch-stock-modal__selection strong {
	color: var(--gbs-text);
	font-weight: 600;
}

.guocera-batch-stock-modal__row {
	display: flex;
	align-items: center;
	gap: 12px;
	flex-wrap: wrap;
}

.guocera-batch-stock-modal__qty-wrap {
	display: flex;
	align-items: center;
	gap: 10px;
	flex: 1;
	min-width: 0;
}

.guocera-batch-stock-modal__qty-wrap label {
	font-size: 0.875rem;
	font-weight: 600;
	color: var(--gbs-text);
	white-space: nowrap;
}

#guocera-batch-stock-qty {
	width: 72px;
	min-height: 48px;
	padding: 0 12px;
	border: 2px solid var(--gbs-border);
	border-radius: 10px;
	background: var(--gbs-bg);
	color: var(--gbs-text);
	font-size: 1rem;
	font-weight: 600;
	text-align: center;
	-moz-appearance: textfield;
}

#guocera-batch-stock-qty::-webkit-outer-spin-button,
#guocera-batch-stock-qty::-webkit-inner-spin-button {
	-webkit-appearance: none;
	margin: 0;
}

#guocera-batch-stock-qty:focus {
	outline: none;
	border-color: #000;
	box-shadow: 0 0 0 1px #000;
}

.guocera-batch-stock-modal__add {
	position: relative;
	flex: 1;
	min-width: min(100%, 160px);
	min-height: 48px;
	padding: 0 20px;
	border: 1px solid #000;
	border-radius: 6px;
	background: #000;
	color: #fff !important;
	font-weight: 600;
	font-size: 0.9375rem;
	cursor: pointer;
	transition: background 0.15s, color 0.15s, border-color 0.15s;
	box-shadow: none;
}

.guocera-batch-stock-modal__add:hover {
	background: #fff;
	color: #000 !important;
}

.guocera-batch-stock-modal__add:active {
	transform: scale(0.98);
}

.guocera-batch-stock-modal__add:disabled {
	opacity: 0.5;
	cursor: not-allowed;
	transform: none;
}

/* Add to cart loading overlay (modal) */
.guocera-batch-stock-modal__content {
	position: relative;
}

.guocera-batch-stock-modal__adding-overlay {
	position: absolute;
	inset: 0;
	z-index: 10;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 16px;
	background: rgba(255, 255, 255, 0.92);
	backdrop-filter: blur(8px);
	-webkit-backdrop-filter: blur(8px);
	border-radius: inherit;
	opacity: 0;
	visibility: hidden;
	pointer-events: none;
	transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.3s;
}

.guocera-batch-stock-modal.is-adding-to-cart .guocera-batch-stock-modal__adding-overlay {
	opacity: 1;
	visibility: visible;
	pointer-events: auto;
}

.guocera-batch-stock-modal__adding-spinner {
	width: 40px;
	height: 40px;
	border: 3px solid var(--gbs-border);
	border-top-color: var(--gbs-accent);
	border-radius: 50%;
	animation: gbs-spin 0.7s linear infinite;
}

.guocera-batch-stock-modal__adding-text {
	margin: 0;
	font-size: 0.9375rem;
	font-weight: 600;
	color: var(--gbs-text);
	letter-spacing: -0.01em;
}

/* Add button loading state (inline feedback) */
.guocera-batch-stock-modal__add.is-loading {
	color: transparent !important;
	pointer-events: none;
}

.guocera-batch-stock-modal__add.is-loading::after {
	content: '';
	position: absolute;
	top: 50%;
	left: 50%;
	width: 20px;
	height: 20px;
	margin: -10px 0 0 -10px;
	border: 2px solid rgba(255, 255, 255, 0.4);
	border-top-color: #fff;
	border-radius: 50%;
	animation: gbs-spin 0.6s linear infinite;
}

/* Mobile sheet handle */
.guocera-batch-stock-modal__handle {
	display: none;
	width: 36px;
	height: 4px;
	background: #ccc;
	border-radius: 99px;
	margin: 10px auto 0;
	flex-shrink: 0;
}

@media (max-width: 600px) {
	.guocera-batch-stock-modal__handle {
		display: block;
	}

	.guocera-batch-stock-modal__header {
		padding-top: 8px;
	}

	.guocera-batch-stock-modal__row {
		flex-direction: column;
		align-items: stretch;
	}

	.guocera-batch-stock-modal__qty-wrap {
		justify-content: space-between;
	}

	.guocera-batch-stock-modal__add {
		width: 100%;
		min-height: 52px;
		font-size: 1rem;
	}
}

/* Add to cart loading (product page) */
.single_add_to_cart_button.guocera-add-to-cart-loading {
	position: relative;
	color: transparent !important;
	pointer-events: none;
}

.single_add_to_cart_button.guocera-add-to-cart-loading::after {
	content: '';
	position: absolute;
	top: 50%;
	left: 50%;
	width: 22px;
	height: 22px;
	margin: -11px 0 0 -11px;
	border: 2px solid rgba(255, 255, 255, 0.35);
	border-top-color: #fff;
	border-radius: 50%;
	animation: gbs-spin 0.65s linear infinite;
}

.single_add_to_cart_button.alt.guocera-add-to-cart-loading::after,
.theme-dark .single_add_to_cart_button.guocera-add-to-cart-loading::after {
	border-color: rgba(0, 0, 0, 0.15);
	border-top-color: #333;
}

.screen-reader-text {
	clip: rect(1px, 1px, 1px, 1px);
	clip-path: inset(50%);
	height: 1px;
	width: 1px;
	margin: -1px;
	overflow: hidden;
	padding: 0;
	position: absolute;
	word-wrap: normal !important;
}

@media (prefers-reduced-motion: reduce) {
	.guocera-batch-stock-modal,
	.guocera-batch-stock-modal__backdrop,
	.guocera-batch-stock-modal__content,
	.guocera-batch-stock-modal__adding-overlay,
	.gbs-batch-card {
		transition: none !important;
	}
	.guocera-batch-stock-modal.is-open .guocera-batch-stock-modal__content {
		transform: none;
	}
}