/* ============================================
           VARIABLES & RESET
           ============================================ */
        :root {
            --primary: #2c3e50;
            --primary-dark: #1a252f;
            --accent: #3498db;
            --accent-dark: #2980b9;
            --success: #27ae60;
            --success-dark: #219150;
            --warning: #f39c12;
            --warning-light: #fff8e1;
            --danger: #e74c3c;
            --danger-light: #fdeaea;
            --bg: #f8f9fa;
            --text: #333;
            --text-light: #666;
            --text-muted: #888;
            --border: #e1e4e8;
            --border-light: #f0f0f0;
            --card-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
            --transition: 0.2s ease;
            --radius: 12px;
            --radius-sm: 8px;
        }

        * {
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            background-color: var(--bg);
            color: var(--text);
            margin: 0;
            padding: 0;
            line-height: 1.6;
            display: flex;
            flex-direction: column;
            height: 100vh;
            overflow: hidden;
        }

        /* ============================================
           HEADER
           ============================================ */
        header {
            background: white;
            border-bottom: 1px solid var(--border);
            padding: 6px 0;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
            flex-shrink: 0;
            z-index: 100;
        }

        .header-content {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 16px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
        }

        .logo {
            font-size: 0.95rem;
            font-weight: 800;
            color: var(--primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .logo svg {
            height: 22px;
            width: auto;
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        /* Privacy Badge */
        .privacy-badge {
            display: flex;
            align-items: center;
            gap: 4px;
            background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
            padding: 4px 8px;
            border-radius: 12px;
            font-size: 0.65rem;
            font-weight: 600;
            color: var(--success-dark);
            border: 1px solid #a5d6a7;
        }

        .privacy-badge svg {
            width: 12px;
            height: 12px;
        }

        .coffee-btn {
            font-size: 0.75rem;
            color: #555;
            text-decoration: none;
            background: #f5f5f5;
            padding: 5px 10px;
            border-radius: 12px;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 4px;
            font-weight: 500;
        }

        .coffee-btn:hover {
            background: #ebebeb;
            color: #000;
            transform: translateY(-1px);
        }

        /* ============================================
           MAIN CONTAINER
           ============================================ */
        .container {
            flex: 1;
            display: flex;
            flex-direction: column;
            overflow: hidden;
            padding: 8px 16px;
            max-width: 1600px;
            margin: 0 auto;
            width: 100%;
        }

        .hero-text {
            text-align: center;
            padding: 2px 0 4px 0;
            flex-shrink: 0;
        }

        .hero-text h1 {
            margin: 0;
            font-size: 0.95rem;
            color: var(--primary);
            font-weight: 700;
        }

        .hero-text p {
            color: var(--text-light);
            font-size: 0.7rem;
            margin: 0;
        }

        /* ============================================
           APP SHELL - 2 COLUMN LAYOUT
           ============================================ */
        .app-shell {
            flex: 1;
            display: grid;
            grid-template-columns: 340px 1fr;
            gap: 12px;
            min-height: 0;
            overflow: hidden;
        }

        @media (max-width: 900px) {
            .app-shell {
                grid-template-columns: 1fr;
            }
            .preview-panel {
                order: -1;
            }
        }

        /* ============================================
           CONTROLS SIDEBAR (Left)
           ============================================ */
        .controls-card {
            background: white;
            padding: 10px;
            border-radius: var(--radius);
            box-shadow: var(--card-shadow);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
            min-height: 0;
        }

        /* ============================================
           PREVIEW PANEL (Right)
           ============================================ */
        .preview-panel {
            background: white;
            border-radius: var(--radius);
            box-shadow: var(--card-shadow);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            min-height: 0;
            overflow: hidden;
        }

        .preview-header {
            padding: 10px 16px;
            border-bottom: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: #f9fafb;
            border-radius: var(--radius) var(--radius) 0 0;
            flex-shrink: 0;
        }

        .preview-header h2 {
            margin: 0;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
        }

        .preview-stats {
            display: flex;
            gap: 10px;
            font-size: 0.75rem;
        }

        .stat-badge {
            padding: 3px 8px;
            border-radius: 10px;
            font-weight: 500;
        }

        .stat-badge.success {
            background: #dcfce7;
            color: #166534;
        }

        .stat-badge.error {
            background: #fee2e2;
            color: #991b1b;
        }

        .preview-content {
            padding: 12px;
            flex: 1;
            overflow-y: auto;
            min-height: 0;
            display: flex;
            flex-direction: column;
        }

        .preview-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 12px;
        }

        .preview-empty {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            text-align: center;
        }

        .preview-empty svg {
            width: 48px;
            height: 48px;
            margin-bottom: 12px;
            opacity: 0.4;
        }

        .preview-empty h3 {
            margin: 0 0 4px 0;
            font-size: 1rem;
            color: var(--text-light);
        }

        .preview-empty p {
            margin: 0;
            font-size: 0.85rem;
        }

        .step {
            display: flex;
            flex-direction: column;
            gap: 4px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--border-light);
            transition: opacity 0.3s ease;
        }

        .step:last-child {
            border: none;
            padding-bottom: 0;
        }

        .step.disabled {
            opacity: 0.5;
            pointer-events: none;
        }

        .step-header {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .step-number {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--accent);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.65rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .step-label {
            font-weight: 600;
            font-size: 0.8rem;
            color: var(--primary);
        }

        .help-icon {
            margin-left: auto;
            cursor: pointer;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .help-icon:hover {
            color: var(--accent);
        }

        /* ============================================
           INPUT STYLES
           ============================================ */
        select.form-select {
            padding: 8px 10px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            width: 100%;
            background-color: white;
            cursor: pointer;
            transition: var(--transition);
            font-family: inherit;
        }

        select.form-select:hover {
            border-color: var(--accent);
        }

        select.form-select:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.15);
        }

        /* Custom File Upload */
        .btn-upload {
            border: 2px dashed var(--accent);
            color: var(--accent);
            background: white;
            padding: 14px 16px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            cursor: pointer;
            display: block;
            text-align: center;
            transition: var(--transition);
            position: relative;
        }

        .btn-upload:hover {
            background: #f0f9ff;
            border-color: var(--accent-dark);
            transform: translateY(-1px);
        }

        .btn-upload.file-loaded {
            border-color: var(--success);
            background: #e8f5e9;
            color: var(--success-dark);
        }

        .btn-upload span {
            display: block;
            font-size: 0.95rem;
            margin-bottom: 2px;
        }

        .btn-upload small {
            font-weight: 400;
            color: var(--text-muted);
            font-size: 0.75rem;
        }

        /* Loading State */
        .btn-upload.loading {
            pointer-events: none;
        }

        .btn-upload.loading::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 24px;
            height: 24px;
            margin: -12px 0 0 -12px;
            border: 3px solid var(--accent);
            border-top-color: transparent;
            border-radius: 50%;
            animation: spin 0.8s linear infinite;
        }

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

        /* Input Mode Tabs */
        .input-tabs {
            display: flex;
            gap: 0;
            margin-bottom: 8px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            border: 1px solid var(--border);
        }

        .input-tab {
            flex: 1;
            padding: 6px 12px;
            text-align: center;
            font-weight: 500;
            font-size: 0.8rem;
            cursor: pointer;
            background: var(--bg);
            color: var(--text-muted);
            border: none;
            transition: var(--transition);
        }

        .input-tab:first-child {
            border-right: 1px solid var(--border);
        }

        .input-tab:hover {
            background: #f0f9ff;
            color: var(--accent);
        }

        .input-tab.active {
            background: var(--accent);
            color: white;
        }

        .input-panel {
            display: none;
        }

        .input-panel.active {
            display: block;
        }

        /* Paste Codes Textarea */
        .paste-codes-area {
            width: 100%;
            min-height: 80px;
            padding: 8px;
            border: 2px dashed var(--border);
            border-radius: var(--radius-sm);
            font-family: 'SF Mono', Monaco, 'Courier New', monospace;
            font-size: 0.85rem;
            line-height: 1.4;
            resize: vertical;
            transition: var(--transition);
        }

        .paste-codes-area:focus {
            outline: none;
            border-color: var(--accent);
            background: #fafbfc;
        }

        .paste-codes-area::placeholder {
            color: var(--text-muted);
            font-family: var(--font-family);
        }

        .paste-hint {
            font-size: 0.7rem;
            color: var(--text-muted);
            margin-top: 4px;
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* Column Mapping Section */
        #column-mapping {
            display: none;
            background: linear-gradient(135deg, #eef2f7 0%, #e8ecf1 100%);
            padding: 10px;
            border-radius: var(--radius-sm);
            animation: slideDown 0.3s ease-out;
        }

        @keyframes slideDown {
            from {
                opacity: 0;
                transform: translateY(-10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .mapping-row {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .mapping-group {
            flex: 1;
            min-width: 140px;
        }

        .mapping-group label {
            display: block;
            font-size: 0.7rem;
            font-weight: 600;
            margin-bottom: 3px;
            color: var(--primary);
        }

        .inputs-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .input-group {
            flex: 1;
            min-width: 100px;
        }

        .input-group label {
            display: block;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 4px;
            color: var(--text);
        }

        .input-group input,
        .input-group select {
            padding: 8px 10px;
            border: 1px solid #ddd;
            border-radius: 6px;
            width: 100%;
            font-size: 0.9rem;
            font-family: inherit;
        }

        /* Range Sliders */
        .slider-group {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .slider-group label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
        }

        .slider-group label span {
            font-weight: 700;
            color: var(--accent);
            min-width: 24px;
            text-align: right;
        }

        .slider-group input[type="range"] {
            -webkit-appearance: none;
            width: 100%;
            height: 4px;
            border-radius: 2px;
            background: #ddd;
            outline: none;
            cursor: pointer;
        }

        .slider-group input[type="range"]::-webkit-slider-thumb {
            -webkit-appearance: none;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent);
            cursor: pointer;
            box-shadow: 0 1px 3px rgba(0,0,0,0.2);
            transition: transform 0.1s;
        }

        .slider-group input[type="range"]::-webkit-slider-thumb:hover {
            transform: scale(1.1);
        }

        .slider-group input[type="range"]::-moz-range-thumb {
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent);
            cursor: pointer;
            border: none;
        }

        /* Barcode Settings Panel - Compact 2-Column Design */
        .barcode-settings {
            background: var(--card-bg, #ffffff);
            border: 1px solid var(--border);
            padding: 10px;
            border-radius: var(--radius);
            margin-top: 8px;
        }

        .barcode-settings-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 8px;
            padding-bottom: 6px;
            border-bottom: 1px solid var(--border);
        }

        .barcode-settings-header h3 {
            font-size: 11px;
            font-weight: 700;
            margin: 0;
            color: var(--primary);
        }

        .reset-btn {
            background: none;
            border: none;
            color: var(--accent);
            font-size: 10px;
            font-weight: 500;
            cursor: pointer;
            padding: 2px 5px;
            border-radius: 3px;
        }

        .reset-btn:hover {
            background: rgba(52, 152, 219, 0.1);
        }

        .settings-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            overflow: hidden;
        }

        .settings-grid > div {
            min-width: 0;
            overflow: hidden;
        }

        @media (max-width: 600px) {
            .settings-grid {
                grid-template-columns: 1fr;
                gap: 8px;
            }
        }

        .column-title {
            font-size: 9px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            color: var(--text-light, #64748b);
            font-weight: 700;
            margin-bottom: 6px;
            border-bottom: 1px solid var(--bg, #f1f5f9);
            padding-bottom: 3px;
            display: inline-block;
        }

        .control-group {
            margin-bottom: 6px;
        }

        .control-group .label-row {
            margin-bottom: 2px;
        }

        .control-group .label-row label {
            font-size: 10px;
            font-weight: 600;
            color: var(--text);
        }

        .control-group .input-row {
            display: flex;
            align-items: center;
            gap: 6px;
            min-width: 0;
        }

        .control-group input[type="number"] {
            width: 38px;
            min-width: 38px;
            flex-shrink: 0;
            padding: 2px 1px;
            border: 1px solid var(--border);
            border-radius: 3px;
            text-align: center;
            font-weight: 600;
            color: var(--text);
            font-size: 10px;
            outline: none;
            font-family: inherit;
        }

        .control-group input[type="number"]:focus {
            border-color: var(--accent);
        }

        .control-group input[type="range"] {
            -webkit-appearance: none;
            flex: 1 1 0;
            min-width: 0;
            max-width: 100%;
            height: 3px;
            background: #e2e8f0;
            border-radius: 2px;
            outline: none;
            cursor: pointer;
        }

        .control-group input[type="range"]::-webkit-slider-thumb {
            -webkit-appearance: none;
            height: 10px;
            width: 10px;
            border-radius: 50%;
            background: #ffffff;
            border: 2px solid var(--accent);
            box-shadow: 0 1px 2px rgba(0,0,0,0.12);
            cursor: pointer;
        }

        .control-group input[type="range"]::-webkit-slider-thumb:hover {
            transform: scale(1.1);
        }

        .control-group input[type="range"]::-moz-range-thumb {
            height: 10px;
            width: 10px;
            border-radius: 50%;
            background: #ffffff;
            border: 2px solid var(--accent);
            box-shadow: 0 1px 2px rgba(0,0,0,0.12);
            cursor: pointer;
        }

        /* Toggle Container */
        .toggle-container {
            margin-top: 6px;
            background: var(--bg, #f1f5f9);
            padding: 6px 8px;
            border-radius: 4px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .toggle-container .toggle-label-text {
            font-size: 10px;
            font-weight: 600;
            color: var(--text);
        }

        .switch {
            position: relative;
            display: inline-block;
            width: 28px;
            height: 16px;
        }

        .switch input {
            opacity: 0;
            width: 0;
            height: 0;
        }

        .switch .slider {
            position: absolute;
            cursor: pointer;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: #cbd5e1;
            transition: 0.3s;
            border-radius: 16px;
        }

        .switch .slider:before {
            position: absolute;
            content: "";
            height: 10px;
            width: 10px;
            left: 3px;
            bottom: 3px;
            background-color: white;
            transition: 0.3s;
            border-radius: 50%;
            box-shadow: 0 1px 2px rgba(0,0,0,0.2);
        }

        .switch input:checked + .slider {
            background-color: var(--accent);
        }

        .switch input:checked + .slider:before {
            transform: translateX(12px);
        }

        /* Settings Bottom Row */
        .settings-bottom {
            display: flex;
            gap: 8px;
            margin-top: 8px;
            padding-top: 8px;
            border-top: 1px solid var(--border);
        }

        .settings-bottom .input-group {
            flex: 1;
        }

        .settings-bottom .input-group label {
            font-size: 9px;
            text-transform: uppercase;
            letter-spacing: 0.03em;
            font-weight: 600;
            color: var(--text-light, #64748b);
            margin-bottom: 3px;
            display: block;
        }

        .settings-bottom select {
            width: 100%;
            padding: 4px 5px;
            border: 1px solid var(--border);
            border-radius: 3px;
            font-size: 10px;
            background: white;
            cursor: pointer;
            font-family: inherit;
        }

        .settings-bottom .badges {
            display: flex;
            gap: 4px;
            flex-wrap: wrap;
            align-items: center;
            padding-top: 14px;
        }

        .settings-divider {
            margin-top: 4px;
            padding-top: 4px;
            border-top: 1px dashed var(--border);
        }

        /* Compliance Warning */
        .compliance-warning {
            display: flex;
            align-items: center;
            gap: 6px;
            background: #fff3e0;
            border: 1px solid #ff9800;
            border-radius: 4px;
            padding: 6px 10px;
            margin-top: 8px;
            font-size: 0.7rem;
            color: #e65100;
        }

        .compliance-warning .warning-icon {
            font-size: 0.9rem;
        }

        .quality-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #e8f5e9;
            color: #2e7d32;
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 0.7rem;
            font-weight: 600;
            text-transform: uppercase;
        }

        /* Toggle Switch */
        .toggle-group {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .toggle-switch {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            cursor: pointer;
            margin-top: 2px;
        }

        .toggle-switch input {
            opacity: 0;
            width: 0;
            height: 0;
            position: absolute;
        }

        .toggle-slider {
            width: 32px;
            height: 18px;
            background: #ccc;
            border-radius: 18px;
            position: relative;
            transition: background 0.2s ease;
        }

        .toggle-slider::before {
            content: '';
            position: absolute;
            width: 14px;
            height: 14px;
            background: white;
            border-radius: 50%;
            top: 2px;
            left: 2px;
            transition: transform 0.2s ease;
            box-shadow: 0 1px 2px rgba(0,0,0,0.2);
        }

        .toggle-switch input:checked + .toggle-slider {
            background: var(--accent);
        }

        .toggle-switch input:checked + .toggle-slider::before {
            transform: translateX(14px);
        }

        .toggle-label {
            font-size: 0.65rem;
            font-weight: 600;
            color: var(--text-muted);
            min-width: 18px;
        }

        .toggle-switch input:checked ~ .toggle-label {
            color: var(--accent);
        }


        /* ============================================
           ACTION BUTTONS
           ============================================ */
        .btn-zip {
            flex: 1;
            background: var(--primary);
            color: white;
            border: none;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 3px 8px rgba(44, 62, 80, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            font-family: inherit;
            min-width: 140px;
        }

        .btn-zip:hover:not(:disabled) {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(44, 62, 80, 0.25);
        }

        .btn-zip:disabled {
            background: #95a5a6;
            cursor: not-allowed;
            box-shadow: none;
        }

        .barcode-item {
            background: transparent;
            padding: 4px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .barcode-item.has-error {
            background: var(--danger-light);
            border-radius: var(--radius-sm);
            padding: 8px;
        }

        .barcode-label {
            font-size: 0.75rem;
            font-weight: 500;
            margin-top: 4px;
            text-align: center;
            word-break: break-word;
            color: var(--text-muted);
        }

        .barcode-item svg,
        .barcode-item canvas {
            display: block;
            max-width: 100%;
            height: auto;
            background: white;
            border: 1px solid #333;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
        }

        .error-msg {
            color: var(--danger);
            font-size: 0.75rem;
            text-align: center;
            font-weight: 600;
            padding: 8px;
        }

        .error-hint {
            font-weight: 400;
            font-size: 0.7rem;
            opacity: 0.8;
            display: block;
            margin-top: 4px;
        }

        /* Pagination */
        .pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 15px;
            margin-top: 10px;
            padding: 12px;
            background: #f9fafb;
            border-radius: var(--radius-sm);
            grid-column: 1 / -1;
        }

        .pagination-info {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .btn-page {
            background: var(--accent);
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            font-family: inherit;
        }

        .btn-page:hover:not(:disabled) {
            background: var(--accent-dark);
        }

        .btn-page:disabled {
            background: var(--border);
            color: var(--text-muted);
            cursor: not-allowed;
        }

        /* ============================================
           TOAST NOTIFICATIONS
           ============================================ */
        .toast-container {
            position: fixed;
            top: 80px;
            right: 20px;
            z-index: 1000;
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 380px;
        }

        .toast {
            background: white;
            border-radius: var(--radius-sm);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
            padding: 14px 18px;
            display: flex;
            align-items: flex-start;
            gap: 12px;
            animation: slideIn 0.3s ease-out;
            border-left: 4px solid var(--accent);
        }

        .toast.success {
            border-left-color: var(--success);
        }

        .toast.error {
            border-left-color: var(--danger);
        }

        .toast.warning {
            border-left-color: var(--warning);
        }

        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateX(100px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        .toast-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
        }

        .toast-content {
            flex: 1;
        }

        .toast-title {
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 2px;
        }

        .toast-message {
            font-size: 0.85rem;
            color: var(--text-light);
        }

        .toast-close {
            background: none;
            border: none;
            cursor: pointer;
            color: var(--text-muted);
            font-size: 1.2rem;
            padding: 0;
            line-height: 1;
        }

        /* ============================================
           FOOTER
           ============================================ */
        footer {
            border-top: 1px solid var(--border);
            padding: 8px 16px;
            text-align: center;
            font-size: 0.7rem;
            color: var(--text-muted);
            background: white;
            flex-shrink: 0;
        }

        footer a {
            color: var(--accent);
            text-decoration: none;
        }

        footer a:hover {
            text-decoration: underline;
        }

        .footer-links {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .seo-details {
            margin-top: 4px;
        }

        .seo-details summary {
            cursor: pointer;
            color: var(--text-muted);
            font-size: 0.65rem;
        }

        .seo-details summary:hover {
            color: var(--accent);
        }

        .seo-content {
            margin-top: 4px;
            font-size: 0.65rem;
            line-height: 1.4;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .seo-content p {
            margin: 0;
        }

        /* ============================================
           PRINT STYLES
           ============================================ */
        @media print {
            @page {
                margin: 0 !important;
                padding: 0 !important;
            }

            /* Hide EVERYTHING first */
            body * {
                visibility: hidden;
            }

            body, html {
                margin: 0 !important;
                padding: 0 !important;
                background: white !important;
            }

            /* Then show ONLY barcode items */
            .preview-panel,
            .preview-content,
            #barcode-container,
            .barcode-item,
            .barcode-item * {
                visibility: visible !important;
            }

            .preview-panel {
                position: absolute !important;
                left: 0 !important;
                top: 0 !important;
                width: 100% !important;
                margin: 0 !important;
                padding: 0 !important;
                border: none !important;
                box-shadow: none !important;
            }

            .preview-header,
            .preview-stats {
                display: none !important;
            }

            .preview-content {
                padding: 0 !important;
                max-height: none !important;
            }

            #barcode-container {
                position: relative !important;
                width: 100% !important;
                margin: 0 !important;
                padding: 0 !important;
                border: none !important;
                display: block !important;
            }

            .preview-empty,
            .barcode-item.has-error,
            .error-msg,
            .pagination {
                display: none !important;
                visibility: hidden !important;
            }

            /* Each barcode on its own page */
            .barcode-item {
                page-break-after: always !important;
                break-after: page !important;
                width: 100% !important;
                height: 100vh !important;
                margin: 0 !important;
                padding: 0 !important;
                border: none !important;
                box-shadow: none !important;
                display: flex !important;
                flex-direction: column !important;
                justify-content: center !important;
                align-items: center !important;
                box-sizing: border-box !important;
                background: white !important;
            }

            .barcode-item:last-child {
                page-break-after: auto !important;
            }

            .barcode-item svg,
            .barcode-item canvas {
                max-width: 90% !important;
                max-height: 60vh !important;
                width: auto !important;
                height: auto !important;
            }

            .barcode-label {
                font-size: 16pt !important;
                margin-top: 10mm !important;
                font-weight: bold !important;
            }

            .barcode-text-code {
                font-size: 14pt !important;
                margin-top: 5mm !important;
            }
        }

        /* ============================================
           RESPONSIVE / MOBILE
           ============================================ */
        @media (max-width: 600px) {
            .header-content {
                flex-wrap: wrap;
            }

            .privacy-badge {
                display: none;
            }

            .hero-text h1 {
                font-size: 1.3rem;
            }

            .hero-text p {
                font-size: 0.9rem;
            }

            .controls-card {
                padding: 20px 16px;
            }

            .btn-group {
                flex-direction: column;
            }

            .btn-zip {
                width: 100%;
                min-width: unset;
            }

            .preview-grid {
                grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
            }

            .toast-container {
                left: 10px;
                right: 10px;
                max-width: unset;
            }
        }