/* Wrapper Layout */
.csuk-builder-wrapper {
    display: flex;
    gap: 40px;
    align-items: flex-start;
    margin-top: 30px;
}

/* Product Display Area */
.csuk-product-display {
    flex: 1;
    min-height: 400px;
    border: 2px dashed #ddd;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    background: #fafafa;
}

/* Membership List */
.csuk-membership-list {
    width: 280px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

/* Membership Cards */
.csuk-option {
    padding: 18px;
    border-radius: 10px;
    border: 2px solid #ddd;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.25s ease;
    background: white;
}

.csuk-option:hover {
    border-color: #6a0dad;
    transform: translateY(-2px);
}

/* Selected State */
.csuk-option.selected {
    background: #6a0dad;
    color: white;
    border-color: #6a0dad;
    box-shadow: 0 8px 20px rgba(106, 13, 173, 0.25);
}

/* Product Card */
.csuk-product-card img {
    max-width: 220px;
    margin-bottom: 20px;
}

.csuk-product-card h3 {
    margin-bottom: 10px;
}

.csuk-product-card .price {
    font-size: 22px;
    margin-bottom: 20px;
}

.csuk-selection-instructions {
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 15px;
    color: #444;
    background: #f3f4f6;
    padding: 12px 15px;
    border-radius: 8px;
}

.csuk-option {
    padding: 16px 18px;
    border-radius: 10px;
    border: 2px solid #ddd;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.25s ease;
    background: white;

    display: flex;
    align-items: center;
    gap: 12px;
}

.csuk-option-icon {
    width: 26px;
    height: 26px;
    object-fit: contain;
}

/* Buttons */
.csuk-buttons {
    margin-top: 25px;
    display: flex;
    gap: 10px;
    justify-content: center;
}

.csuk-buttons .button {
    padding: 10px 18px;
    border-radius: 6px;
}

/* Responsive */
@media(max-width: 900px){
    .csuk-builder-wrapper {
        flex-direction: column;
    }

    .csuk-membership-list {
        width: 100%;
        flex-direction: row;
        flex-wrap: wrap;
    }

    .csuk-option {
        flex: 1 1 45%;
        text-align: center;
    }
}

.csuk-loading {
    font-size: 18px;
    padding: 40px;
    position: relative;
}

.csuk-loading:after {
    content: "";
    width: 24px;
    height: 24px;
    border: 3px solid #ccc;
    border-top: 3px solid #6a0dad;
    border-radius: 50%;
    display: inline-block;
    margin-left: 15px;
    animation: csuk-spin 0.8s linear infinite;
    vertical-align: middle;
}

@keyframes csuk-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.csuk-helper-text {
    margin-top: 15px;
    font-size: 14px;
    opacity: 0.8;
}

.csuk-savings {
    margin-top: 20px;
    padding: 18px;
    background: linear-gradient(135deg, #f3e8ff, #e0c3fc);
    border-radius: 12px;
    text-align: center;
}

.csuk-best-badge {
    font-weight: 700;
    margin-bottom: 8px;
    color: #4a148c;
}

.csuk-saving-line {
    font-size: 18px;
    margin-bottom: 6px;
}

.csuk-old-price {
    text-decoration: line-through;
    margin-right: 10px;
    opacity: 0.6;
}

.csuk-new-price {
    font-weight: 700;
    font-size: 22px;
    color: #6a0dad;
}

.csuk-save-amount {
    font-weight: 600;
    color: #1b5e20;
}