.tb-control-b2b-grid {
    margin: 1.5em 0;
    max-width: 100%;
}

.tb-control-b2b-grid__table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1em;
}

.tb-control-b2b-grid__table th,
.tb-control-b2b-grid__table td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: center;
    vertical-align: middle;
}

.tb-control-b2b-grid__table thead th {
    background: #f7f7f7;
}

.tb-control-b2b-grid__table tbody th {
    text-align: left;
    background: #fafafa;
}

.tb-control-b2b-grid__cell--empty {
    color: #999;
}

.tb-control-b2b-grid__size-label {
    display: none;
    font-weight: 600;
    font-size: 0.85em;
    margin-right: 6px;
}

.tb-control-b2b-grid__input-wrap {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.tb-control-b2b-grid__input {
    width: 4.5em;
    padding: 4px;
    text-align: center;
    font-size: 1em;
}

.tb-control-b2b-grid__stock-hint {
    display: block;
    font-size: 0.75em;
    color: #666;
    margin-top: 2px;
}

.tb-control-b2b-grid__unavailable {
    color: #a00;
    font-size: 0.85em;
}

.tb-control-b2b-grid__totals p {
    margin: 4px 0;
    font-size: 1.05em;
}

.tb-control-b2b-grid__submit {
    margin-top: 8px;
}

.tb-control-b2b-grid__feedback {
    margin-top: 10px;
    font-weight: 600;
}

.tb-control-b2b-grid__feedback--error {
    color: #a00;
}

.tb-control-b2b-grid__feedback--success {
    color: #0a6b0a;
}

@media ( max-width: 600px ) {
    .tb-control-b2b-grid__table,
    .tb-control-b2b-grid__table thead,
    .tb-control-b2b-grid__table tbody,
    .tb-control-b2b-grid__table th,
    .tb-control-b2b-grid__table td,
    .tb-control-b2b-grid__table tr {
        display: block;
    }

    .tb-control-b2b-grid__table thead tr {
        display: none;
    }

    .tb-control-b2b-grid__table tbody tr {
        margin-bottom: 12px;
        border: 1px solid #ddd;
        border-radius: 4px;
        padding: 8px;
    }

    .tb-control-b2b-grid__table tbody th {
        border: none;
        font-size: 1.1em;
    }

    .tb-control-b2b-grid__table td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        border: none;
        border-top: 1px solid #eee;
    }

    .tb-control-b2b-grid__size-label {
        display: inline-block;
    }

    .tb-control-b2b-grid__input {
        width: 5.5em;
    }
}