.wcbo-bulk-order-container {
            background: #f8f9fa;
            border-radius: 8px;
            padding: 25px;
            margin: 20px 0;
            border-left: 4px solid #2271b1;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }
        .wcbo-bulk-order-container h3 {
            margin-top: 0;
            color: #1d2327;
            font-size: 18px;
            margin-bottom: 15px;
        }
        .wcbo-bulk-order-container .wcbo-subtitle {
            color: #666;
            font-size: 14px;
            margin-bottom: 20px;
        }
        .wcbo-variations-table {
            width: 100%;
            border-collapse: collapse;
            margin: 15px 0;
            background: #fff;
            border-radius: 5px;
            overflow: hidden;
            box-shadow: 0 1px 3px rgba(0,0,0,0.1);
        }
        .wcbo-variations-table th {
            background: #f1f1f1;
            padding: 10px 12px;
            text-align: left;
            font-weight: 600;
            color: #1d2327;
            font-size: 13px;
        }
        .wcbo-variations-table td {
            padding: 10px 12px;
            border-bottom: 1px solid #eee;
            vertical-align: middle;
        }
        .wcbo-variations-table tr:hover {
            background: #f8f9fa;
        }
        .wcbo-variations-table .variation-name {
            font-weight: 500;
        }
        .wcbo-variations-table .variation-price {
            color: #2271b1;
            font-weight: 600;
        }
        .wcbo-variations-table .variation-wholesale-price {
            color: #46b450;
            font-weight: 600;
        }
        .wcbo-variations-table .variation-price del {
            color: #999;
            font-weight: normal;
        }
        .wcbo-variations-table .variation-price ins {
            text-decoration: none;
            font-weight: 600;
        }
        .wcbo-variations-table .price-savings {
            color: #46b450;
            font-size: 12px;
            font-weight: 600;
        }
        .wcbo-variations-table input[type='number'] {
            width: 80px;
            padding: 6px 10px;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-size: 14px;
            text-align: center;
        }
        .wcbo-variations-table input[type='number']:focus {
            border-color: #2271b1;
            box-shadow: 0 0 0 1px #2271b1;
            outline: none;
        }
        .wcbo-variations-table .variation-stock {
            font-size: 12px;
            color: #666;
        }
        .wcbo-variations-table .variation-stock.in-stock {
            color: #46b450;
        }
        .wcbo-variations-table .variation-stock.out-of-stock {
            color: #dc3232;
        }
        .wcbo-variations-table .variation-subtotal {
            font-weight: 600;
            color: #1d2327;
        }
        /* Only the current (wholesale) variation subtotal is displayed.
           Hide any legacy normal-subtotal markup left by older cached output. */
        .wcbo-variations-table .subtotal-normal {
            display: none !important;
        }
        .wcbo-variations-table .variation-subtotal .subtotal-wholesale {
            color: #46b450;
        }
        .wcbo-variations-table .variation-subtotal .subtotal-savings {
            color: #46b450;
            font-size: 12px;
        }
        .wcbo-bulk-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            align-items: center;
            margin: 15px 0;
            padding: 15px;
            background: #fff;
            border-radius: 5px;
            border: 1px solid #e5e5e5;
        }
        .wcbo-bulk-summary {
            margin-top: 20px;
            padding: 15px;
            background: #fff;
            border-radius: 5px;
            border: 1px solid #e5e5e5;
        }
        .wcbo-bulk-summary h4 {
            margin-top: 0;
            color: #1d2327;
        }
        .wcbo-bulk-items {
            max-height: 200px;
            overflow-y: auto;
            padding: 0;
            margin: 10px 0;
            list-style: none;
        }
        .wcbo-bulk-items li {
            padding: 8px 12px;
            border-bottom: 1px solid #eee;
            display: flex;
            justify-content: space-between;
        }
        .wcbo-bulk-items li:last-child {
            border-bottom: none;
        }
        .wcbo-total-price {
            font-weight: bold;
            font-size: 1.2em;
            color: #2271b1;
        }
        .wcbo-total-savings {
            color: #46b450;
            font-weight: bold;
        }
        .wcbo-tier-progress { border:1px solid #e5e7eb; padding:12px 14px; border-radius:6px; background:#fff; }
        .wcbo-tier-progress-fill { background:#46b450; }
        .wcbo-tier-table-scroll { width:100%; overflow-x:auto; -webkit-overflow-scrolling:touch; padding:2px 0; }
        .wcbo-tier-cards { display:flex; gap:10px; width:100%; min-width:620px; align-items:stretch; }
        .wcbo-tier-card { flex:1 1 0; min-width:190px; background:#fff; border:1px solid var(--wcbo-tier-box-color, #e5e7eb); border-radius:8px; overflow:hidden; box-sizing:border-box; }
        .wcbo-tier-card-active { border:2px solid var(--wcbo-active-tier-color, #46b450); }
        .wcbo-tier-card-row { display:grid; grid-template-columns:1fr 1fr; width:100%; }
        .wcbo-tier-card-head { font-size:11px; font-weight:600; text-transform:uppercase; letter-spacing:.03em; opacity:.7; text-align:center; padding:8px 8px 5px; color:inherit; }
        .wcbo-tier-card-value { font-size:13px; font-weight:600; line-height:1.4; text-align:center; padding:5px 8px 10px; }
        .wcbo-tier-card .wcbo-tier-spend-value { color:var(--wcbo-spend-color, #46b450); }
        .wcbo-tier-card .wcbo-tier-discount-value { color:var(--wcbo-discount-color, #7c3aed); }
        @media (max-width:700px) { .wcbo-tier-cards { min-width:620px; } }
        .wcbo-discount-badge {
            display: inline-block;
            padding: 2px 8px;
            border-radius: 3px;
            font-size: 11px;
            font-weight: bold;
            background: #46b450;
            color: #fff;
            margin-left: 5px;
        }
        .wcbo-pricing-table-grid {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            border-radius: 5px;
            overflow: hidden;
            box-shadow: 0 1px 3px rgba(0,0,0,0.1);
        }
        .wcbo-pricing-table-grid th,
        .wcbo-pricing-table-grid td {
            padding: 12px 15px;
            text-align: left;
            border-bottom: 1px solid #dee2e6;
        }
        .wcbo-pricing-table-grid th {
            background: #f8f9fa;
            font-weight: 600;
            color: #1d2327;
        }
        .wcbo-pricing-table-grid tr:hover {
            background: #f8f9fa;
        }
        .wcbo-success-message {
            background: #d4edda;
            color: #155724;
            padding: 10px 15px;
            border-radius: 4px;
            margin: 10px 0;
            border-left: 4px solid #28a745;
        }
        .wcbo-error-message {
            background: #f8d7da;
            color: #721c24;
            padding: 10px 15px;
            border-radius: 4px;
            margin: 10px 0;
            border-left: 4px solid #dc3545;
        }
        .wcbo-price-tag {
            display: inline-block;
            padding: 2px 8px;
            border-radius: 3px;
            font-size: 11px;
            font-weight: 600;
        }
        .wcbo-price-tag.wholesale {
            background: #d4edda;
            color: #155724;
        }
        .wcbo-price-tag.regular {
            background: #f8f9fa;
            color: #666;
        }
        .wcbo-bulk-button-container {
            margin-top: 15px;
            text-align: center;
        }
        .wcbo-bulk-button-container .button {
            padding: 12px 40px;
            font-size: 16px;
            font-weight: 600;
        }