/**
 * Component: single product page
 *
 * Two columns: gallery left, buy box right. Specifications sit below at full
 * width, never behind a tab - purity and weight are purchase criteria, not
 * supplementary reading.
 */

.tcs-product {
	padding-block: var(--tcs-space-lg) var(--tcs-space-2xl);
}

.tcs-product__main {
	display: grid;
	grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
	gap: var(--tcs-space-2xl);
	align-items: start;
}

.tcs-product__buybox {
	position: sticky;
	top: var(--tcs-space-md);
}

/* ---------------------------------------------------------------------- */
/* Buy box                                                                 */
/* ---------------------------------------------------------------------- */

.tcs-product-mint {
	margin: 0 0 var(--tcs-space-2xs);
}

.tcs-product .product_title {
	font-family: var(--tcs-font-serif);
	font-size: var(--tcs-text-2xl);
	font-weight: var(--tcs-weight-regular);
	line-height: var(--tcs-leading-tight);
	letter-spacing: var(--tcs-tracking-tight);
	margin: 0 0 var(--tcs-space-sm);
	text-wrap: balance;
}

/* Bullion titles step back to the interface face - these buyers scan. */
.tcs-product.tcs-bullion .product_title {
	font-family: var(--tcs-font-sans);
	font-size: var(--tcs-text-xl);
	font-weight: var(--tcs-weight-medium);
}

.tcs-product .woocommerce-product-details__short-description {
	margin-block: var(--tcs-space-md);
	color: var(--tcs-ink-muted);
	font-size: var(--tcs-text-sm);
	max-width: var(--tcs-measure);
}

/* ---------------------------------------------------------------------- */
/* Key facts                                                               */
/* ---------------------------------------------------------------------- */

.tcs-keyfacts {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(7rem, 1fr));
	gap: var(--tcs-space-xs);
	margin: var(--tcs-space-md) 0;
	padding: var(--tcs-space-sm) 0;
	border-block: var(--tcs-border);
}

.tcs-keyfact {
	min-width: 0;
}

.tcs-keyfact__label {
	font-family: var(--tcs-font-sans);
	font-size: var(--tcs-text-3xs);
	font-weight: var(--tcs-weight-semibold);
	letter-spacing: var(--tcs-tracking-label);
	text-transform: uppercase;
	color: var(--tcs-ink-faint);
	margin: 0 0 var(--tcs-space-3xs);
}

.tcs-keyfact__value {
	font-family: var(--tcs-font-sans);
	font-size: var(--tcs-text-base);
	font-weight: var(--tcs-weight-medium);
	color: var(--tcs-ink);
	margin: 0;
	line-height: var(--tcs-leading-snug);
}

/*
 * Emphasis marks the one figure that decides the purchase: price per ounce
 * for bullion, mintage for a collectible.
 */
.tcs-keyfact--emphasis .tcs-keyfact__value {
	color: var(--tcs-accent);
	font-weight: var(--tcs-weight-semibold);
}

/* ---------------------------------------------------------------------- */
/* Purchase                                                                */
/* ---------------------------------------------------------------------- */

.tcs-product form.cart {
	display: flex;
	flex-wrap: wrap;
	align-items: stretch;
	gap: var(--tcs-space-xs);
	margin-block: var(--tcs-space-md);
}

.tcs-product form.cart .quantity {
	flex-shrink: 0;
}

.tcs-product form.cart .single_add_to_cart_button {
	flex: 1;
	min-width: 12rem;
	min-height: 52px;
	font-size: var(--tcs-text-base);
}

/* Quantity stepper - built by JS, degrades to a plain number input. */
.tcs-qty {
	display: flex;
	align-items: stretch;
	border: var(--tcs-border);
	border-radius: var(--tcs-radius);
	overflow: hidden;
	background: var(--tcs-surface-raised);
}

.tcs-qty__button {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 44px;
	min-height: 52px;
	color: var(--tcs-ink);
	font-size: var(--tcs-text-md);
	line-height: 1;
	transition: background-color var(--tcs-duration) var(--tcs-ease);
}

.tcs-qty__button:hover:not(:disabled) {
	background: var(--tcs-paper-sunk);
}

.tcs-qty__button:disabled {
	color: var(--tcs-ink-faint);
	cursor: not-allowed;
}

.tcs-qty .quantity,
.tcs-qty input[type="number"] {
	margin: 0;
}

.tcs-qty input[type="number"] {
	width: 3.5rem;
	min-height: 52px;
	border: 0;
	border-inline: var(--tcs-border);
	border-radius: 0;
	text-align: center;
	font-variant-numeric: tabular-nums;
	-moz-appearance: textfield;
	appearance: textfield;
}

.tcs-qty input[type="number"]::-webkit-outer-spin-button,
.tcs-qty input[type="number"]::-webkit-inner-spin-button {
	-webkit-appearance: none;
	margin: 0;
}

.tcs-purchase-note {
	font-size: var(--tcs-text-xs);
	color: var(--tcs-ink-muted);
	margin: var(--tcs-space-2xs) 0 0;
	flex-basis: 100%;
	max-width: var(--tcs-measure);
}

.tcs-purchase-note--muted {
	color: var(--tcs-ink-faint);
}

/* ---------------------------------------------------------------------- */
/* Trust facts                                                             */
/* ---------------------------------------------------------------------- */

.tcs-trustfacts {
	margin-block-start: var(--tcs-space-lg);
	padding-block-start: var(--tcs-space-md);
	border-block-start: var(--tcs-border);
}

.tcs-trustfacts__heading {
	margin: 0 0 var(--tcs-space-xs);
}

.tcs-trustfacts__list {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: var(--tcs-space-2xs);
}

.tcs-trustfacts__item {
	position: relative;
	padding-inline-start: var(--tcs-space-md);
	font-size: var(--tcs-text-xs);
	color: var(--tcs-ink-muted);
	line-height: var(--tcs-leading-normal);
}

/* A short rule rather than an icon set - no decorative tick marks. */
.tcs-trustfacts__item::before {
	content: "";
	position: absolute;
	inset-inline-start: 0;
	inset-block-start: 0.62em;
	width: 8px;
	height: 1px;
	background: var(--tcs-accent);
}

/* ---------------------------------------------------------------------- */
/* Specifications                                                          */
/* ---------------------------------------------------------------------- */

.tcs-specs {
	margin-block-start: var(--tcs-section-gap);
}

.tcs-specs__heading {
	padding-block-end: var(--tcs-space-xs);
	margin-block-end: 0;
	border-block-end: 1px solid var(--tcs-rule-strong);
}

.tcs-specs__table {
	width: 100%;
	border-collapse: collapse;
	max-width: 46rem;
}

.tcs-specs__row {
	border-block-end: var(--tcs-border-faint);
}

.tcs-specs__key {
	width: 14rem;
	padding: var(--tcs-space-sm) var(--tcs-space-md) var(--tcs-space-sm) 0;
	font-family: var(--tcs-font-sans);
	font-size: var(--tcs-text-xs);
	font-weight: var(--tcs-weight-regular);
	color: var(--tcs-ink-faint);
	text-align: start;
	vertical-align: top;
}

.tcs-specs__value {
	padding: var(--tcs-space-sm) 0;
	font-size: var(--tcs-text-sm);
	color: var(--tcs-ink);
	font-weight: var(--tcs-weight-medium);
}

/* ---------------------------------------------------------------------- */
/* Tabs                                                                    */
/* ---------------------------------------------------------------------- */

.woocommerce-tabs {
	margin-block-start: var(--tcs-section-gap);
}

.woocommerce-tabs .wc-tabs {
	display: flex;
	flex-wrap: wrap;
	gap: var(--tcs-space-lg);
	list-style: none;
	margin: 0 0 var(--tcs-space-lg);
	padding: 0 0 var(--tcs-space-xs);
	border-block-end: 1px solid var(--tcs-rule-strong);
}

.woocommerce-tabs .wc-tabs li a {
	font-family: var(--tcs-font-sans);
	font-size: var(--tcs-text-2xs);
	font-weight: var(--tcs-weight-semibold);
	letter-spacing: var(--tcs-tracking-label);
	text-transform: uppercase;
	color: var(--tcs-ink-faint);
	text-decoration: none;
	padding-block-end: var(--tcs-space-xs);
}

.woocommerce-tabs .wc-tabs li.active a,
.woocommerce-tabs .wc-tabs li a:hover {
	color: var(--tcs-ink);
}

.woocommerce-tabs .wc-tab {
	max-width: var(--tcs-measure);
	color: var(--tcs-ink-muted);
}

.woocommerce-tabs .wc-tab h2 {
	display: none; /* The tab label already says this. */
}

/* ---------------------------------------------------------------------- */
/* Related products                                                        */
/* ---------------------------------------------------------------------- */

.related.products,
.up-sells.products {
	margin-block-start: var(--tcs-section-gap);
}

.related.products > h2,
.up-sells.products > h2 {
	font-size: var(--tcs-text-xl);
	padding-block-end: var(--tcs-space-sm);
	margin-block-end: var(--tcs-space-lg);
	border-block-end: var(--tcs-border);
}

.related.products ul.products {
	--tcs-grid-columns: 4;
}

/* ---------------------------------------------------------------------- */
/* Sticky mobile purchase bar                                              */
/* ---------------------------------------------------------------------- */

.tcs-stickybuy {
	position: fixed;
	inset-inline: 0;
	inset-block-end: 0;
	z-index: var(--tcs-z-sticky);
	display: none;
	align-items: center;
	justify-content: space-between;
	gap: var(--tcs-space-sm);
	padding: var(--tcs-space-sm) var(--tcs-gutter);
	padding-block-end: calc(var(--tcs-space-sm) + env(safe-area-inset-bottom, 0px));
	background: var(--tcs-surface-raised);
	border-block-start: var(--tcs-border);
	box-shadow: var(--tcs-shadow-overlay);
}

.tcs-stickybuy[hidden] { display: none; }

.tcs-stickybuy__info {
	display: flex;
	flex-direction: column;
	gap: var(--tcs-space-3xs);
	min-width: 0;
}

.tcs-stickybuy__price {
	font-size: var(--tcs-text-md);
	font-weight: var(--tcs-weight-semibold);
	color: var(--tcs-ink);
	line-height: 1.1;
}

.tcs-stickybuy .tcs-button {
	flex-shrink: 0;
	min-width: 9rem;
}

/* ---------------------------------------------------------------------- */
/* Mobile                                                                  */
/* ---------------------------------------------------------------------- */

@media (max-width: 900px) {
	.tcs-product__main {
		grid-template-columns: minmax(0, 1fr);
		gap: var(--tcs-space-lg);
	}

	.tcs-product__buybox {
		position: static;
	}

	.tcs-specs__key {
		width: 9rem;
		padding-inline-end: var(--tcs-space-sm);
	}

	.related.products ul.products {
		--tcs-grid-columns: 2;
	}

	/* Only shown once the buy box has scrolled away - see product.js. */
	.tcs-js .tcs-stickybuy:not([hidden]) {
		display: flex;
	}

	/* Keep the sticky bar clear of the page end. */
	.tcs-product {
		padding-block-end: 5rem;
	}
}

@media (max-width: 480px) {
	.tcs-keyfacts {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.tcs-product form.cart .single_add_to_cart_button {
		min-width: 0;
	}
}

/* ---------------------------------------------------------------------- */
/* Print                                                                   */
/* ---------------------------------------------------------------------- */

@media print {
	.tcs-stickybuy,
	.tcs-product form.cart,
	.related.products {
		display: none;
	}

	.tcs-product__main {
		grid-template-columns: minmax(0, 1fr);
	}
}