.rtbom-app {
	--rtbom-bg: #f8fafc;
	--rtbom-surface: #ffffff;
	--rtbom-border: #e2e8f0;
	--rtbom-text: #1e293b;
	--rtbom-muted: #64748b;
	--rtbom-primary: #2563eb;
	--rtbom-primary-contrast: #ffffff;
	--rtbom-radius: 10px;

	display: flex;
	background: var( --rtbom-bg );
	color: var( --rtbom-text );
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
	min-height: 480px;
	border-radius: var( --rtbom-radius );
	overflow: hidden;
	border: 1px solid var( --rtbom-border );
}

@media ( prefers-color-scheme: dark ) {
	.rtbom-app.rtbom-auto-dark {
		--rtbom-bg: #0f172a;
		--rtbom-surface: #1e293b;
		--rtbom-border: #334155;
		--rtbom-text: #e2e8f0;
		--rtbom-muted: #94a3b8;
	}
}

/* Manual dark mode toggle (persisted via localStorage). Takes priority over
   the OS-preference block above since it's applied on demand by the user. */
body.rtbom-theme-dark .rtbom-app {
	--rtbom-bg: #0f172a;
	--rtbom-surface: #1e293b;
	--rtbom-border: #334155;
	--rtbom-text: #e2e8f0;
	--rtbom-muted: #94a3b8;
}
body.rtbom-theme-dark .rtbom-modal__box {
	--rtbom-surface: #1e293b;
	--rtbom-border: #334155;
	--rtbom-text: #e2e8f0;
	background: #1e293b;
	color: #e2e8f0;
}
.rtbom-theme-toggle {
	display: block;
	width: calc( 100% - 40px );
	margin: 16px 20px 0;
	padding: 8px;
	border-radius: 8px;
	border: 1px solid var( --rtbom-border );
	background: var( --rtbom-surface );
	color: var( --rtbom-text );
	cursor: pointer;
	font-size: 13px;
}

.rtbom-sidebar {
	width: 220px;
	background: var( --rtbom-surface );
	border-right: 1px solid var( --rtbom-border );
	padding: 20px 0;
	flex-shrink: 0;
}
.rtbom-logo {
	font-weight: 700;
	font-size: 16px;
	padding: 0 20px 16px;
	border-bottom: 1px solid var( --rtbom-border );
	margin-bottom: 12px;
}
.rtbom-nav a {
	display: block;
	padding: 10px 20px;
	color: var( --rtbom-muted );
	text-decoration: none;
	font-size: 14px;
}
.rtbom-nav a.active,
.rtbom-nav a:hover:not( .rtbom-nav-disabled ) {
	background: var( --rtbom-bg );
	color: var( --rtbom-primary );
	font-weight: 600;
}
.rtbom-nav-disabled {
	opacity: 0.4;
	cursor: not-allowed;
}

.rtbom-main {
	flex: 1;
	padding: 24px;
	overflow-x: auto;
}

.rtbom-topbar {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 20px;
	flex-wrap: wrap;
	gap: 10px;
}
.rtbom-topbar h1 {
	font-size: 20px;
	margin: 0 0 4px;
}
.rtbom-topbar__actions {
	display: flex;
	gap: 8px;
	align-items: center;
}

.rtbom-btn {
	display: inline-block !important;
	padding: 8px 16px !important;
	border-radius: 8px !important;
	border: 1px solid var( --rtbom-border ) !important;
	background: var( --rtbom-surface ) !important;
	color: var( --rtbom-text ) !important;
	font-size: 14px !important;
	line-height: normal !important;
	cursor: pointer;
	text-decoration: none !important;
	box-shadow: none !important;
	text-transform: none !important;
}
.rtbom-btn--primary {
	background: var( --rtbom-primary ) !important;
	color: var( --rtbom-primary-contrast ) !important;
	border-color: var( --rtbom-primary ) !important;
}
.rtbom-btn--sm { padding: 4px 10px !important; font-size: 12px !important; }

.rtbom-project-grid {
	display: grid;
	grid-template-columns: repeat( auto-fill, minmax( 260px, 1fr ) );
	gap: 16px;
}
.rtbom-project-card {
	background: var( --rtbom-surface );
	border: 1px solid var( --rtbom-border );
	border-radius: var( --rtbom-radius );
	padding: 16px;
}
.rtbom-project-card__header {
	display: flex;
	justify-content: space-between;
	align-items: flex-start;
	gap: 8px;
}
.rtbom-project-card h3 { margin: 0; font-size: 15px; }
.rtbom-project-card__desc { color: var( --rtbom-muted ); font-size: 13px; min-height: 32px; }
.rtbom-project-card__meta {
	display: flex;
	gap: 10px;
	font-size: 12px;
	color: var( --rtbom-muted );
	margin: 8px 0 12px;
}

.rtbom-back-link {
	display: inline-block;
	margin-bottom: 6px;
	font-size: 13px;
	color: var( --rtbom-primary );
	text-decoration: none;
}
.rtbom-back-link:hover { text-decoration: underline; }

.rtbom-status {
	display: inline-block;
	padding: 2px 10px;
	border-radius: 12px;
	font-size: 11px;
	font-weight: 600;
	background: #e5e7eb;
	color: #374151;
	white-space: nowrap;
}

.rtbom-modal {
	/* Explicit show/hide state (not left to the browser's default [hidden]
	   stylesheet) so a theme's CSS reset can't silently win the cascade and
	   leave the modal visible on page load. */
	display: none !important;
	position: fixed !important;
	inset: 0 !important;
	background: rgba( 15, 23, 42, 0.5 );
	align-items: center;
	justify-content: center;
	z-index: 999999 !important;
}
.rtbom-modal.rtbom-modal--open {
	display: flex !important;
}
.rtbom-modal__box {
	background: var( --rtbom-surface );
	border-radius: var( --rtbom-radius );
	padding: 24px;
	width: 100% !important;
	max-width: 420px !important;
	max-height: 90vh;
	overflow-y: auto;
	box-sizing: border-box;
}
.rtbom-modal__box label {
	display: block;
	margin-bottom: 12px;
	font-size: 13px;
	color: var( --rtbom-muted );
}
.rtbom-modal__box input,
.rtbom-modal__box textarea,
.rtbom-modal__box select {
	width: 100%;
	margin-top: 4px;
	padding: 8px;
	border: 1px solid var( --rtbom-border );
	border-radius: 6px;
	font-size: 14px;
}
.rtbom-form-row { display: flex; gap: 10px; }
.rtbom-form-row label { flex: 1; }
.rtbom-modal__actions {
	display: flex;
	justify-content: flex-end;
	gap: 8px;
	margin-top: 8px;
}

/* BOM table */
.rtbom-table-wrap { overflow-x: auto; }
.rtbom-bom-table {
	width: 100%;
	border-collapse: collapse;
	background: var( --rtbom-surface );
	font-size: 13px;
}
.rtbom-bom-table th,
.rtbom-bom-table td {
	border: 1px solid var( --rtbom-border );
	padding: 6px 8px;
	text-align: left;
}
.rtbom-bom-table th { background: var( --rtbom-bg ); font-weight: 600; }
.rtbom-field {
	width: 100%;
	border: none;
	background: transparent;
	color: var( --rtbom-text );
	font-size: 13px;
	padding: 4px;
}
.rtbom-field:focus { outline: 2px solid var( --rtbom-primary ); border-radius: 4px; }
.rtbom-drag-handle { cursor: grab; text-align: center; color: var( --rtbom-muted ); width: 24px; }
.rtbom-cell-component { position: relative; min-width: 180px; }
.rtbom-autocomplete-results {
	position: absolute;
	top: 100%;
	left: 0;
	right: 0;
	background: var( --rtbom-surface );
	border: 1px solid var( --rtbom-border );
	border-radius: 6px;
	max-height: 220px;
	overflow-y: auto;
	z-index: 50;
	box-shadow: 0 8px 24px rgba( 0, 0, 0, 0.12 );
}
.rtbom-autocomplete-item {
	display: flex;
	gap: 8px;
	align-items: center;
	padding: 6px 8px;
	cursor: pointer;
}
.rtbom-autocomplete-item:hover { background: var( --rtbom-bg ); }
.rtbom-autocomplete-item img { width: 28px; height: 28px; object-fit: cover; border-radius: 4px; }
.rtbom-autocomplete-item span { display: block; color: var( --rtbom-muted ); font-size: 11px; }
.rtbom-icon-btn {
	border: none;
	background: transparent;
	cursor: pointer;
	font-size: 14px;
	padding: 2px 4px;
}
.rtbom-cell-actions { white-space: nowrap; }

.rtbom-cost-summary {
	display: flex;
	gap: 24px;
	margin-top: 16px;
	padding: 16px;
	background: var( --rtbom-surface );
	border: 1px solid var( --rtbom-border );
	border-radius: var( --rtbom-radius );
}
.rtbom-cost-summary div { display: flex; flex-direction: column; }
.rtbom-cost-summary span { font-size: 12px; color: var( --rtbom-muted ); }
.rtbom-cost-summary strong { font-size: 18px; }

.rtbom-save-status { font-size: 12px; color: var( --rtbom-muted ); }
.rtbom-guest-notice { padding: 32px; text-align: center; }
.rtbom-error { color: #b91c1c; }
.rtbom-empty { color: var( --rtbom-muted ); }

@media ( max-width: 768px ) {
	.rtbom-app { flex-direction: column; }
	.rtbom-sidebar { width: 100%; display: flex; overflow-x: auto; padding: 8px; }
	.rtbom-nav { display: flex; }
	.rtbom-nav a { white-space: nowrap; }
}

/* ============== Phase 2: Panels (Cost Calculator / Manufacturing Files) ============== */
.rtbom-panel {
	margin-top: 20px;
	padding: 16px;
	background: var( --rtbom-surface );
	border: 1px solid var( --rtbom-border );
	border-radius: var( --rtbom-radius );
}
.rtbom-panel h2 {
	font-size: 15px;
	margin: 0 0 12px;
}
.rtbom-cost-grid {
	display: grid;
	grid-template-columns: repeat( auto-fill, minmax( 160px, 1fr ) );
	gap: 12px;
	margin-bottom: 16px;
}
.rtbom-cost-grid label {
	display: block;
	font-size: 12px;
	color: var( --rtbom-muted );
}
.rtbom-cost-grid input {
	width: 100%;
	margin-top: 4px;
	padding: 6px 8px;
	border: 1px solid var( --rtbom-border );
	border-radius: 6px;
	font-size: 13px;
	background: var( --rtbom-bg );
	color: var( --rtbom-text );
}
.rtbom-cost-summary {
	display: flex;
	flex-wrap: wrap;
	gap: 20px;
	padding-top: 12px;
	border-top: 1px solid var( --rtbom-border );
}
.rtbom-cost-summary div { display: flex; flex-direction: column; min-width: 120px; }
.rtbom-cost-summary span { font-size: 11px; color: var( --rtbom-muted ); }
.rtbom-cost-summary strong { font-size: 16px; }
#rtbom-total-grand { color: var( --rtbom-primary ); font-size: 20px !important; }

.rtbom-file-upload-form {
	display: flex;
	gap: 8px;
	align-items: center;
	flex-wrap: wrap;
	margin-bottom: 12px;
}
.rtbom-file-upload-form select,
.rtbom-file-upload-form input[type="file"] {
	padding: 6px 8px;
	border: 1px solid var( --rtbom-border );
	border-radius: 6px;
	background: var( --rtbom-bg );
	color: var( --rtbom-text );
	font-size: 13px;
}
.rtbom-file-list { list-style: none; margin: 0; padding: 0; }
.rtbom-file-list li {
	display: flex;
	align-items: center;
	gap: 8px;
	padding: 8px 0;
	border-bottom: 1px solid var( --rtbom-border );
	font-size: 13px;
}
.rtbom-file-list li:last-child { border-bottom: none; }
.rtbom-file-type {
	font-size: 10px;
	font-weight: 700;
	background: var( --rtbom-bg );
	padding: 2px 6px;
	border-radius: 4px;
	color: var( --rtbom-muted );
}
.rtbom-file-list a { color: var( --rtbom-primary ); text-decoration: none; flex: 1; }
.rtbom-file-list a:hover { text-decoration: underline; }

.rtbom-cell-file { text-align: center; white-space: nowrap; }

.rtbom-modal__box--wide { max-width: 640px !important; }
.rtbom-library-results {
	max-height: 360px;
	overflow-y: auto;
	margin-top: 10px;
	border: 1px solid var( --rtbom-border );
	border-radius: 8px;
}
#rtbom-library-search {
	width: 100%;
	padding: 8px;
	border: 1px solid var( --rtbom-border );
	border-radius: 6px;
	margin-top: 4px;
}

.rtbom-component-thumb {
	width: 100%;
	height: 100px;
	object-fit: cover;
	border-radius: 6px;
	margin-bottom: 8px;
}
.rtbom-hint {
	color: var( --rtbom-muted );
	font-size: 13px;
	margin: -8px 0 16px;
}

/* ============== Phase 2: WooCommerce status badges ============== */
.rtbom-cell-woo { white-space: nowrap; font-size: 12px; }
.rtbom-woo-badge {
	display: inline-block;
	padding: 2px 8px;
	border-radius: 10px;
	font-size: 11px;
	font-weight: 600;
	margin-right: 4px;
}
.rtbom-woo-badge--instock { background: #dcfce7; color: #15803d; }
.rtbom-woo-badge--outofstock { background: #fee2e2; color: #b91c1c; }
.rtbom-woo-badge--requested { background: #fef3c7; color: #b45309; }
.rtbom-woo-sku { color: var( --rtbom-muted ); font-size: 11px; margin-right: 4px; }
.rtbom-woo-link { color: var( --rtbom-primary ); text-decoration: none; margin-right: 6px; }
.rtbom-woo-link:hover { text-decoration: underline; }

/* Extra status colors for manufacturing-request / quotation statuses not
   already covered by the project-status palette. */
.rtbom-status--pending, .rtbom-status--sent { background: #fef3c7; color: #b45309; }
.rtbom-status--reviewing, .rtbom-status--quoted { background: #dbeafe; color: #1d4ed8; }
.rtbom-status--accepted { background: #dcfce7; color: #15803d; }
.rtbom-status--rejected, .rtbom-status--expired { background: #fee2e2; color: #b91c1c; }

.rtbom-orders-table td { vertical-align: middle; }

/* ============== Phase 3: AI BOM Assist ============== */
.rtbom-ai-input-row {
	display: flex;
	gap: 8px;
	align-items: flex-start;
	margin-bottom: 12px;
}
.rtbom-ai-input-row textarea {
	flex: 1;
	padding: 8px;
	border: 1px solid var( --rtbom-border );
	border-radius: 6px;
	background: var( --rtbom-bg );
	color: var( --rtbom-text );
	font-size: 13px;
	resize: vertical;
}
.rtbom-ai-suggestion-list {
	display: grid;
	grid-template-columns: repeat( auto-fill, minmax( 200px, 1fr ) );
	gap: 10px;
	margin-top: 10px;
}
.rtbom-ai-suggestion {
	border: 1px solid var( --rtbom-border );
	border-radius: 8px;
	padding: 10px;
	font-size: 13px;
	background: var( --rtbom-bg );
}
.rtbom-ai-suggestion p { color: var( --rtbom-muted ); font-size: 12px; margin: 4px 0 8px; }

/* ============== Phase 3: Supplier Comparison ============== */
.rtbom-supplier-price-row { cursor: default; }
#rtbom-supplier-add-form { margin-top: 14px; padding-top: 14px; border-top: 1px solid var( --rtbom-border ); }
#rtbom-supplier-add-form input,
#rtbom-supplier-add-form select {
	width: 100%;
	margin-top: 4px;
	padding: 8px;
	border: 1px solid var( --rtbom-border );
	border-radius: 6px;
	background: var( --rtbom-bg );
	color: var( --rtbom-text );
}

/* ============== BOM Builder gap-closing: bulk actions, checkboxes, detail row ============== */
.rtbom-cell-check { text-align: center; width: 30px; }
.rtbom-bulk-bar {
	display: flex;
	align-items: center;
	gap: 8px;
	padding: 10px 14px;
	margin-bottom: 10px;
	background: var( --rtbom-surface );
	border: 1px solid var( --rtbom-primary );
	border-radius: 8px;
	font-size: 13px;
}
.rtbom-bulk-bar select,
.rtbom-bulk-bar input {
	padding: 6px 8px;
	border: 1px solid var( --rtbom-border );
	border-radius: 6px;
	background: var( --rtbom-bg );
	color: var( --rtbom-text );
}

.rtbom-detail-row td { background: var( --rtbom-bg ); padding: 12px !important; }
.rtbom-detail-grid {
	display: grid;
	grid-template-columns: repeat( auto-fill, minmax( 160px, 1fr ) );
	gap: 10px;
}
.rtbom-detail-grid label {
	display: block;
	font-size: 11px;
	color: var( --rtbom-muted );
}
.rtbom-detail-grid input,
.rtbom-detail-grid select,
.rtbom-detail-grid textarea {
	width: 100%;
	margin-top: 3px;
	padding: 6px 8px;
	border: 1px solid var( --rtbom-border );
	border-radius: 6px;
	background: var( --rtbom-surface );
	color: var( --rtbom-text );
	font-size: 13px;
}
.rtbom-detail-wide { grid-column: 1 / -1; }
.rtbom-detail-3d { display: flex; gap: 6px; align-items: center; }

.rtbom-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ============== Search, Filters, Pagination ============== */
.rtbom-filter-bar {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	align-items: center;
	margin-bottom: 16px;
	padding: 10px;
	background: var( --rtbom-surface );
	border: 1px solid var( --rtbom-border );
	border-radius: 8px;
}
.rtbom-filter-bar input,
.rtbom-filter-bar select {
	padding: 6px 8px;
	border: 1px solid var( --rtbom-border );
	border-radius: 6px;
	background: var( --rtbom-bg );
	color: var( --rtbom-text );
	font-size: 13px;
}
.rtbom-search-form {
	display: flex;
	gap: 8px;
	margin-bottom: 16px;
}
.rtbom-search-form input {
	flex: 1;
	padding: 8px;
	border: 1px solid var( --rtbom-border );
	border-radius: 6px;
}

.rtbom-pagination {
	display: flex;
	align-items: center;
	gap: 12px;
	justify-content: center;
	margin-top: 20px;
	padding: 10px;
}
.rtbom-pagination__status { font-size: 13px; color: var( --rtbom-muted ); }

/* ============== BOM Import, Export Dropdown, Share Link ============== */
.rtbom-export-dropdown { position: relative; display: inline-block; }
.rtbom-export-menu {
	position: absolute;
	top: 100%;
	right: 0;
	background: var( --rtbom-surface );
	border: 1px solid var( --rtbom-border );
	border-radius: 8px;
	box-shadow: 0 8px 24px rgba( 0, 0, 0, 0.12 );
	z-index: 100;
	min-width: 100px;
	overflow: hidden;
}
.rtbom-export-menu a {
	display: block;
	padding: 8px 14px;
	color: var( --rtbom-text );
	text-decoration: none;
	font-size: 13px;
}
.rtbom-export-menu a:hover { background: var( --rtbom-bg ); }

#rtbom-import-mapping-table th select {
	width: 100%;
	margin-top: 4px;
	font-size: 11px;
	padding: 2px;
}
#rtbom-share-url {
	width: 100%;
	padding: 8px;
	border: 1px solid var( --rtbom-border );
	border-radius: 6px;
	margin: 8px 0;
	font-size: 12px;
}