/* =============================================================================
   PTW Stack Pairings — Complete Your Kit
   Brand palette: deep navy / biotech blue / premium charcoal
   Version: 1.0.0
   ============================================================================= */

/* ─── Variables ─────────────────────────────────────────────────────────────── */
.ptw-stack-pairings {
	--ptw-navy:        #0b1628;
	--ptw-navy-mid:    #122040;
	--ptw-blue:        #1e6bff;
	--ptw-blue-light:  #3d84ff;
	--ptw-blue-glow:   rgba(30, 107, 255, 0.18);
	--ptw-charcoal:    #1c2433;
	--ptw-slate:       #2e3a4e;
	--ptw-border:      rgba(255, 255, 255, 0.08);
	--ptw-text-primary:   #f0f4ff;
	--ptw-text-secondary: #8fa5c4;
	--ptw-text-muted:     #5a6e87;
	--ptw-accent-green:   #00d68f;
	--ptw-accent-amber:   #ffb020;
	--ptw-radius:     12px;
	--ptw-radius-sm:   6px;
	--ptw-transition: 220ms ease;
}

/* ─── Section Wrapper ────────────────────────────────────────────────────────── */
.ptw-stack-pairings {
	margin: 48px 0 40px;
	padding: 36px 32px 28px;
	background: linear-gradient(145deg, var(--ptw-navy-mid) 0%, var(--ptw-charcoal) 100%);
	border: 1px solid var(--ptw-border);
	border-radius: var(--ptw-radius);
	box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255,255,255,0.06);
	position: relative;
	overflow: hidden;
}

/* Subtle top accent line */
.ptw-stack-pairings::before {
	content: '';
	position: absolute;
	top: 0; left: 0; right: 0;
	height: 2px;
	background: linear-gradient(90deg, transparent, var(--ptw-blue), transparent);
}

/* ─── Header ─────────────────────────────────────────────────────────────────── */
.ptw-sp-header {
	margin-bottom: 28px;
}

.ptw-sp-badge {
	display: inline-block;
	font-size: 10px;
	font-weight: 700;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--ptw-blue-light);
	background: var(--ptw-blue-glow);
	border: 1px solid rgba(30, 107, 255, 0.3);
	padding: 3px 10px;
	border-radius: 40px;
	margin-bottom: 10px;
}

.ptw-sp-heading {
	font-size: 22px;
	font-weight: 700;
	color: var(--ptw-text-primary);
	margin: 0 0 8px;
	letter-spacing: -0.01em;
	line-height: 1.2;
}

.ptw-sp-subheading {
	font-size: 14px;
	color: var(--ptw-text-secondary);
	margin: 0;
	line-height: 1.6;
}

.ptw-sp-subheading strong {
	color: var(--ptw-text-primary);
	font-weight: 600;
}

/* ─── Grid ───────────────────────────────────────────────────────────────────── */
.ptw-sp-grid {
	display: grid;
	gap: 16px;
}

.ptw-sp-grid--single {
	grid-template-columns: 1fr;
	max-width: 480px;
}

.ptw-sp-grid--multi {
	grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}

/* ─── Card ───────────────────────────────────────────────────────────────────── */
.ptw-sp-card {
	border-radius: var(--ptw-radius);
	overflow: hidden;
	transition: transform var(--ptw-transition), box-shadow var(--ptw-transition);
}

.ptw-sp-card:hover {
	transform: translateY(-2px);
	box-shadow: 0 12px 32px rgba(0,0,0,0.4), 0 0 0 1px rgba(30, 107, 255, 0.25);
}

.ptw-sp-card-inner {
	display: flex;
	gap: 0;
	flex-direction: row;
	background: var(--ptw-slate);
	border: 1px solid var(--ptw-border);
	border-radius: var(--ptw-radius);
	overflow: hidden;
	height: 100%;
}

/* ─── Card Image ─────────────────────────────────────────────────────────────── */
.ptw-sp-card-image {
	flex-shrink: 0;
	width: 100px;
	background: var(--ptw-navy);
	display: flex;
	align-items: center;
	justify-content: center;
}

.ptw-sp-card-image a {
	display: block;
	width: 100%;
	height: 100%;
}

.ptw-sp-thumb {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	opacity: 0.92;
	transition: opacity var(--ptw-transition);
}

.ptw-sp-card:hover .ptw-sp-thumb {
	opacity: 1;
}

/* No image fallback */
.ptw-sp-card-image img[src=""] {
	background: var(--ptw-navy-mid);
}

/* ─── Card Body ──────────────────────────────────────────────────────────────── */
.ptw-sp-card-body {
	padding: 14px 16px;
	display: flex;
	flex-direction: column;
	flex: 1;
	min-width: 0;
}

.ptw-sp-card-tag {
	font-size: 10px;
	font-weight: 700;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--ptw-blue-light);
	margin-bottom: 4px;
}

.ptw-sp-card-title {
	font-size: 15px;
	font-weight: 700;
	margin: 0 0 6px;
	line-height: 1.3;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

.ptw-sp-card-title a {
	color: var(--ptw-text-primary);
	text-decoration: none;
	transition: color var(--ptw-transition);
}

.ptw-sp-card-title a:hover {
	color: var(--ptw-blue-light);
}

.ptw-sp-card-rationale {
	font-size: 12px;
	color: var(--ptw-text-secondary);
	margin: 0 0 12px;
	line-height: 1.5;
	flex: 1;
}

/* ─── Card Footer: Price + Buttons ──────────────────────────────────────────── */
.ptw-sp-card-footer {
	margin-top: auto;
}

.ptw-sp-price {
	font-size: 15px;
	font-weight: 700;
	color: var(--ptw-text-primary);
	margin-bottom: 10px;
}

.ptw-sp-price .woocommerce-Price-amount {
	color: var(--ptw-text-primary);
}

.ptw-sp-price del .woocommerce-Price-amount {
	color: var(--ptw-text-muted);
	font-weight: 400;
	font-size: 12px;
}

/* ─── Buttons ────────────────────────────────────────────────────────────────── */
.ptw-sp-actions {
	display: flex;
	flex-direction: column;
	gap: 6px;
}

.ptw-sp-btn {
	display: block;
	text-align: center;
	border-radius: var(--ptw-radius-sm);
	font-size: 12px;
	font-weight: 700;
	letter-spacing: 0.03em;
	padding: 8px 12px;
	text-decoration: none;
	cursor: pointer;
	transition: background var(--ptw-transition), color var(--ptw-transition),
	            box-shadow var(--ptw-transition), border-color var(--ptw-transition);
	white-space: nowrap;
}

/* Primary: Add Both to Cart */
.ptw-sp-btn--primary {
	background: var(--ptw-blue);
	color: #fff;
	border: 1px solid transparent;
}

.ptw-sp-btn--primary:hover,
.ptw-sp-btn--primary:focus {
	background: var(--ptw-blue-light);
	box-shadow: 0 4px 16px rgba(30, 107, 255, 0.4);
	color: #fff;
}

/* Ghost: Add This Only */
.ptw-sp-btn--ghost {
	background: transparent;
	color: var(--ptw-text-secondary);
	border: 1px solid rgba(255, 255, 255, 0.15);
}

.ptw-sp-btn--ghost:hover,
.ptw-sp-btn--ghost:focus {
	background: rgba(255, 255, 255, 0.06);
	color: var(--ptw-text-primary);
	border-color: rgba(255, 255, 255, 0.3);
}

/* Out of Stock */
.ptw-sp-out-of-stock {
	display: inline-block;
	font-size: 11px;
	font-weight: 600;
	color: var(--ptw-text-muted);
	text-transform: uppercase;
	letter-spacing: 0.08em;
}

/* ─── Disclaimer ─────────────────────────────────────────────────────────────── */
.ptw-sp-disclaimer {
	margin: 20px 0 0;
	font-size: 11px;
	color: var(--ptw-text-muted);
	text-align: center;
	letter-spacing: 0.01em;
}

/* ─── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
	.ptw-stack-pairings {
		padding: 24px 20px 20px;
	}

	.ptw-sp-grid--multi {
		grid-template-columns: 1fr 1fr;
	}
}

@media (max-width: 600px) {
	.ptw-stack-pairings {
		padding: 20px 16px 16px;
		margin: 32px 0 28px;
	}

	.ptw-sp-grid--multi,
	.ptw-sp-grid--single {
		grid-template-columns: 1fr;
		max-width: 100%;
	}

	.ptw-sp-heading {
		font-size: 18px;
	}

	.ptw-sp-card-inner {
		flex-direction: column;
	}

	.ptw-sp-card-image {
		width: 100%;
		height: 140px;
	}

	.ptw-sp-actions {
		flex-direction: row;
	}

	.ptw-sp-btn {
		flex: 1;
	}
}