/* WC Variation Buttons */

.wcvb-button-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 8px 0;
}

/* 基本按鈕 */
.wcvb-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 14px;
    background: #fff;
    border: 1px solid #ccc;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    line-height: 1.5;
    color: #333;
    transition: border-color 0.15s ease;
    white-space: nowrap;
}

/* Hover（非已選取、非 disabled） */
.wcvb-btn:hover:not(.wcvb-btn--selected):not(.wcvb-btn--disabled) {
    border-color: #999;
}

/* 鍵盤 focus 可見指示（無障礙） */
.wcvb-btn:focus-visible {
    outline: 2px solid #0066cc;
    outline-offset: 2px;
}

/* 已選取 */
.wcvb-btn--selected {
    border: 2px solid #333;
    padding: 5px 13px;
    font-weight: 600;
}

/* 缺貨 / 不可用 */
.wcvb-btn--disabled {
    background: #f5f5f5;
    color: #aaa;
    border-color: #e0e0e0;
    pointer-events: none;
    cursor: not-allowed;
}