/* Curtain Studio – curtin.company inspired UI */
.cts-studio {
	--cts-bg: #F7F4EF;
	--cts-panel: #ffffff;
	--cts-text: #1a1a1a;
	--cts-muted: #6b7280;
	--cts-border: #e8e4dc;
	--cts-primary: #2c2c2c;
	--cts-accent: #c17f3e;
	--cts-radius: 16px;
	--cts-radius-sm: 10px;
	--cts-shadow: 0 4px 24px rgba(0,0,0,0.06);
	font-family: inherit;
	color: var(--cts-text);
	line-height: 1.5;
	background: var(--cts-bg);
	box-sizing: border-box;
}
.cts-studio *, .cts-studio *::before, .cts-studio *::after { box-sizing: border-box; }

.cts-studio-inner {
	max-width: 1440px;
	margin: 0 auto;
	padding: 1rem 1.25rem 2rem;
}

.cts-layout {
	display: grid;
	grid-template-columns: minmax(300px, 380px) 1fr;
	gap: 1.25rem;
	min-height: 75vh;
	align-items: stretch;
}

/* Panel */
.cts-panel {
	background: var(--cts-panel);
	border-radius: var(--cts-radius);
	box-shadow: var(--cts-shadow);
	display: flex;
	flex-direction: column;
	max-height: 88vh;
	overflow: hidden;
	border: 1px solid var(--cts-border);
}
.cts-panel-header {
	padding: 1.25rem 1.25rem 0.75rem;
	flex-shrink: 0;
}
.cts-title {
	margin: 0 0 0.2rem;
	font-size: 1.35rem;
	font-weight: 650;
	letter-spacing: -0.02em;
}
.cts-subtitle {
	margin: 0 0 1rem;
	font-size: 0.875rem;
	color: var(--cts-muted);
}

/* Horizontal step tabs – pill style */
.cts-step-tabs {
	display: flex;
	flex-wrap: wrap;
	gap: 0.35rem;
	padding: 0.3rem;
	background: #f3f0ea;
	border-radius: 999px;
	margin-bottom: 0.85rem;
}
.cts-step-tab {
	flex: 1;
	min-width: 3.5rem;
	border: none;
	background: transparent;
	padding: 0.45rem 0.6rem;
	font-size: 0.8rem;
	font-weight: 550;
	color: var(--cts-muted);
	border-radius: 999px;
	cursor: pointer;
	transition: background 0.15s, color 0.15s;
}
.cts-step-tab:hover { color: var(--cts-text); }
.cts-step-tab.active {
	background: var(--cts-primary);
	color: #fff;
	box-shadow: 0 1px 4px rgba(0,0,0,0.12);
}

.cts-window-tabs {
	display: flex;
	flex-wrap: wrap;
	gap: 0.4rem;
	margin-bottom: 0.4rem;
	align-items: center;
}
.cts-window-tab-wrap {
	display: inline-flex;
	align-items: center;
	position: relative;
}
.cts-window-tab {
	border: 1px solid var(--cts-border);
	background: #fff;
	padding: 0.3rem 0.65rem;
	font-size: 0.75rem;
	border-radius: 999px;
	cursor: pointer;
}
.cts-window-tab-wrap:has(.cts-window-remove) .cts-window-tab {
	padding-right: 1.5rem;
}
.cts-window-tab.active {
	border-color: var(--cts-primary);
	background: var(--cts-primary);
	color: #fff;
}
.cts-window-remove {
	position: absolute;
	right: 0.15rem;
	top: 50%;
	transform: translateY(-50%);
	width: 1.15rem;
	height: 1.15rem;
	border: none;
	border-radius: 50%;
	background: rgba(0,0,0,0.12);
	color: #333;
	font-size: 0.85rem;
	line-height: 1;
	cursor: pointer;
	padding: 0;
	display: flex;
	align-items: center;
	justify-content: center;
}
.cts-window-tab-wrap:has(.cts-window-tab.active) .cts-window-remove {
	background: rgba(255,255,255,0.25);
	color: #fff;
}
.cts-window-remove:hover {
	background: #c53030 !important;
	color: #fff !important;
}

.cts-btn-ghost {
	background: transparent;
	border: none;
	color: var(--cts-muted);
	font-size: 0.8rem;
	cursor: pointer;
	padding: 0.25rem 0;
	width: auto;
}
.cts-btn-ghost:hover { color: var(--cts-primary); }

/* Tab panels scroll */
.cts-tab-panels {
	flex: 1;
	overflow-y: auto;
	padding: 0 1.25rem 1rem;
}
.cts-tab-panel[hidden] { display: none !important; }
.cts-tab-panel.active { display: block; }

.cts-card {
	background: #fafaf8;
	border: 1px solid var(--cts-border);
	border-radius: var(--cts-radius-sm);
	padding: 1rem 1.1rem;
}
.cts-card-title {
	margin: 0 0 0.25rem;
	font-size: 1rem;
	font-weight: 600;
}
.cts-help {
	margin: 0 0 0.85rem;
	font-size: 0.8rem;
	color: var(--cts-muted);
}
.cts-label {
	display: block;
	font-size: 0.8rem;
	font-weight: 600;
	margin: 0.85rem 0 0.45rem;
	color: var(--cts-text);
}

/* Wall swatches */
.cts-swatch-grid {
	display: grid;
	grid-template-columns: repeat(7, 1fr);
	gap: 0.4rem;
}
.cts-wall-swatch {
	aspect-ratio: 1;
	border-radius: 8px;
	border: 2px solid transparent;
	cursor: pointer;
	padding: 0;
	transition: transform 0.12s, box-shadow 0.12s;
}
.cts-wall-swatch:hover { transform: scale(1.06); }
.cts-wall-swatch.selected {
	border-color: var(--cts-primary);
	box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--cts-primary);
}

/* Options */
.cts-option-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 0.45rem;
}
.cts-option-card {
	border: 1px solid var(--cts-border);
	background: #fff;
	border-radius: var(--cts-radius-sm);
	padding: 0.65rem 0.75rem;
	font-size: 0.82rem;
	cursor: pointer;
	text-align: center;
	transition: border-color 0.15s, box-shadow 0.15s;
}
.cts-option-card:hover { border-color: #ccc; }
.cts-option-card.selected {
	border-color: var(--cts-primary);
	box-shadow: 0 0 0 1px var(--cts-primary);
	font-weight: 600;
}

/* Dimensions */
.cts-dim-row {
	display: flex;
	flex-direction: column;
	gap: 0.35rem;
	margin-bottom: 0.85rem;
}
.cts-dim-row > label { font-size: 0.8rem; font-weight: 600; }
.cts-ft-in {
	display: flex;
	align-items: center;
	gap: 0.4rem;
}
.cts-ft-in span { font-size: 0.8rem; color: var(--cts-muted); }
.cts-input {
	border: 1px solid var(--cts-border);
	border-radius: 8px;
	padding: 0.5rem 0.65rem;
	font-size: 0.9rem;
	width: 100%;
	background: #fff;
}
.cts-ft-in .cts-input { width: 4.5rem; }
.cts-input:focus {
	outline: none;
	border-color: var(--cts-primary);
	box-shadow: 0 0 0 3px rgba(44,44,44,0.08);
}

/* Patterns */
.cts-search-bar { margin: 0.5rem 0 0.65rem; }
.cts-pattern-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 0.55rem;
}
.cts-pattern-thumb {
	aspect-ratio: 1;
	border-radius: 12px;
	overflow: hidden;
	border: 2px solid var(--cts-border);
	cursor: pointer;
	position: relative;
	background: #eee;
	transition: transform 0.15s, box-shadow 0.15s;
}
.cts-pattern-thumb:hover { transform: translateY(-2px); }
.cts-pattern-thumb.selected {
	border-color: var(--cts-accent);
	box-shadow: 0 0 0 3px rgba(193,127,62,0.3);
}
.cts-pattern-thumb img,
.cts-color-swatch {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}
.cts-pattern-name {
	position: absolute;
	bottom: 0; left: 0; right: 0;
	background: linear-gradient(transparent, rgba(0,0,0,0.65));
	color: #fff;
	font-size: 0.68rem;
	padding: 1rem 0.35rem 0.35rem;
	text-align: center;
	font-weight: 500;
}
.cts-skeleton-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 0.55rem;
	width: 100%;
}
.cts-skeleton-grid span {
	aspect-ratio: 1;
	border-radius: 12px;
	background: linear-gradient(90deg, #eee 25%, #f5f5f5 50%, #eee 75%);
	background-size: 200% 100%;
	animation: cts-shimmer 1.2s infinite;
}
@keyframes cts-shimmer {
	0% { background-position: 200% 0; }
	100% { background-position: -200% 0; }
}

.cts-fullness-options {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 0.45rem;
}
.cts-chip {
	border: 1px solid var(--cts-border);
	background: #fff;
	border-radius: var(--cts-radius-sm);
	padding: 0.5rem 0.35rem;
	font-size: 0.78rem;
	cursor: pointer;
	line-height: 1.25;
	text-align: center;
}
.cts-chip small { display: block; opacity: 0.7; font-size: 0.68rem; }
.cts-chip.active {
	border-color: var(--cts-primary);
	background: var(--cts-primary);
	color: #fff;
}
.cts-custom-fullness {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	margin-top: 0.65rem;
	font-size: 0.8rem;
}
.cts-custom-fullness .cts-input { width: 5rem; }

.cts-category-item {
	border: 1px solid var(--cts-border);
	border-radius: 8px;
	margin-bottom: 0.4rem;
	overflow: hidden;
	background: #fff;
}
.cts-category-header {
	padding: 0.55rem 0.75rem;
	font-size: 0.85rem;
	font-weight: 550;
	cursor: pointer;
}
.cts-category-item.open .cts-category-header { border-bottom: 1px solid var(--cts-border); }
.cts-category-body { display: none; padding: 0.5rem; }
.cts-category-item.open .cts-category-body { display: block; }

.cts-layer-toggles {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem;
	margin-top: 1rem;
	font-size: 0.8rem;
	color: var(--cts-muted);
}

/* Footer price */
.cts-panel-footer {
	border-top: 1px solid var(--cts-border);
	padding: 0.85rem 1.25rem 1.1rem;
	background: #fff;
	flex-shrink: 0;
}
.cts-price-total {
	display: flex;
	justify-content: space-between;
	align-items: baseline;
	font-size: 0.85rem;
	margin-bottom: 0.25rem;
}
.cts-price-total strong {
	font-size: 1.25rem;
	font-weight: 700;
}
.cts-price-toggle {
	width: 100%;
	background: none;
	border: none;
	padding: 0.3rem 0;
	font-size: 0.78rem;
	color: var(--cts-muted);
	cursor: pointer;
	text-align: left;
	display: flex;
	justify-content: space-between;
}
.cts-price-lines {
	font-size: 0.78rem;
	color: var(--cts-muted);
	margin-bottom: 0.5rem;
}
.cts-price-line {
	display: flex;
	justify-content: space-between;
	padding: 0.15rem 0;
}
.cts-actions {
	display: grid;
	grid-template-columns: 1fr 1.4fr;
	gap: 0.5rem;
	margin-top: 0.5rem;
}
.cts-btn {
	border: none;
	border-radius: 999px;
	padding: 0.65rem 1rem;
	font-size: 0.875rem;
	font-weight: 600;
	cursor: pointer;
	transition: opacity 0.15s, transform 0.1s;
}
.cts-btn:active { transform: scale(0.98); }
.cts-btn-primary {
	background: var(--cts-primary);
	color: #fff;
}
.cts-btn-primary:hover { opacity: 0.92; }
.cts-btn-secondary {
	background: #f3f0ea;
	color: var(--cts-text);
}
.cts-btn-outline {
	background: transparent;
	border: 1px solid var(--cts-border);
}

/* Preview */
.cts-preview-area {
	background: linear-gradient(180deg, #ebe6dc 0%, #e0d9cc 100%);
	border-radius: var(--cts-radius);
	box-shadow: var(--cts-shadow);
	display: flex;
	flex-direction: column;
	min-height: 480px;
	overflow: hidden;
	position: relative;
	border: 1px solid var(--cts-border);
}
.cts-preview-toolbar {
	position: absolute;
	top: 0.75rem;
	right: 0.75rem;
	z-index: 5;
	display: flex;
	gap: 0.35rem;
}
.cts-icon-btn {
	width: 36px;
	height: 36px;
	border-radius: 50%;
	border: none;
	background: rgba(255,255,255,0.9);
	box-shadow: 0 1px 6px rgba(0,0,0,0.08);
	cursor: pointer;
	font-size: 1rem;
	display: flex;
	align-items: center;
	justify-content: center;
}
.cts-canvas-wrap {
	flex: 1;
	position: relative;
	display: flex;
	align-items: center;
	justify-content: center;
	min-height: 420px;
}
.cts-canvas-wrap canvas {
	max-width: 100%;
	max-height: 100%;
	display: block;
}
.cts-preview-placeholder {
	position: absolute;
	inset: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	color: var(--cts-muted);
	font-size: 0.95rem;
	pointer-events: none;
	text-align: center;
	padding: 2rem;
}
.cts-preview-placeholder.hidden { display: none; }
.cts-summary-inline {
	padding: 0.65rem 1rem;
	font-size: 0.8rem;
	color: var(--cts-muted);
	background: rgba(255,255,255,0.5);
	border-top: 1px solid rgba(0,0,0,0.04);
}
.cts-summary-inline dl {
	display: flex;
	flex-wrap: wrap;
	gap: 0.35rem 1rem;
	margin: 0;
}
.cts-summary-inline dt { font-weight: 600; color: var(--cts-text); }
.cts-summary-inline dd { margin: 0; }
.cts-swatch-dot {
	display: inline-block;
	width: 10px;
	height: 10px;
	border-radius: 50%;
	border: 1px solid rgba(0,0,0,0.15);
	vertical-align: middle;
	margin-left: 3px;
}

.cts-preview-area.cts-preview-expanded {
	position: fixed;
	inset: 0;
	z-index: 100000;
	border-radius: 0;
	min-height: 100vh;
}

/* Mobile */
.cts-mobile-header {
	display: none;
	position: sticky;
	top: 0;
	z-index: 50;
	background: rgba(255,255,255,0.95);
	backdrop-filter: blur(8px);
	padding: 0.65rem 1rem;
	align-items: center;
	gap: 0.5rem;
	border-bottom: 1px solid var(--cts-border);
}
.cts-mobile-price {
	flex: 1;
	text-align: center;
	font-weight: 700;
	font-size: 1.05rem;
}

@media (max-width: 960px) {
	.cts-layout { grid-template-columns: 1fr; }
	.cts-preview-area {
		order: -1;
		min-height: 38vh;
		max-height: 42vh;
	}
	.cts-panel { max-height: none; }
	.cts-mobile-header { display: flex; }
	.cts-desktop-only { display: none !important; }
	.cts-layout.cts-show-preview-mobile .cts-panel { display: none; }
	.cts-layout.cts-show-preview-mobile .cts-preview-area {
		max-height: none;
		min-height: 70vh;
	}
	.cts-pattern-grid { grid-template-columns: repeat(2, 1fr); }
	.cts-swatch-grid { grid-template-columns: repeat(6, 1fr); }
}
@media (min-width: 961px) {
	.cts-mobile-preview-btn { display: none; }
}

.cts-muted { color: var(--cts-muted); }

/* Media option cards (styles, products) */
.cts-option-card--media {
	display: flex;
	flex-direction: column;
	align-items: stretch;
	padding: 0;
	overflow: hidden;
	text-align: center;
}
.cts-option-thumb {
	width: 100%;
	aspect-ratio: 4 / 3;
	background: #ece8e1;
	overflow: hidden;
}
.cts-option-thumb img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}
.cts-option-thumb--empty {
	display: flex;
	align-items: center;
	justify-content: center;
	color: #999;
	font-size: 1.25rem;
	font-weight: 600;
}
.cts-option-card--media > span {
	padding: 0.45rem 0.5rem 0.55rem;
	font-size: 0.78rem;
}
.cts-category-header {
	display: flex;
	align-items: center;
	gap: 0.55rem;
}
.cts-cat-thumb {
	width: 36px;
	height: 36px;
	border-radius: 8px;
	object-fit: cover;
	flex-shrink: 0;
	background: #e8e4dc;
}
.cts-cat-thumb--empty {
	display: inline-block;
}
#cts-style-options.cts-option-grid {
	grid-template-columns: repeat(2, 1fr);
}
.cts-option-thumb--icon {
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 0.35rem;
	background: #f3efe8;
}
.cts-option-thumb--icon svg {
	width: 100%;
	height: 100%;
	display: block;
}

/* Fabric category chips */
.cts-category-list {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	margin-bottom: 0.85rem;
}
.cts-category-item {
	cursor: pointer;
	border: 1px solid var(--cts-border, #ddd);
	border-radius: 999px;
	background: #fff;
	transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
}
.cts-category-item .cts-category-header {
	display: flex;
	align-items: center;
	gap: 0.4rem;
	padding: 0.35rem 0.75rem 0.35rem 0.4rem;
	font-size: 0.8rem;
	font-weight: 600;
}
.cts-category-item.active,
.cts-category-item.open {
	border-color: var(--cts-primary, #5c4a3a);
	background: #f7f3ee;
	box-shadow: 0 0 0 1px var(--cts-primary, #5c4a3a);
}
.cts-category-item:hover {
	border-color: var(--cts-primary, #5c4a3a);
}