:root {
    --primary-color: #5A266A;
    --primary-light: rgba(90, 38, 106, 0.1);
    --text-dark: #333333;
    --text-medium: #555555;
    --text-light: #777777;
    --border-color: #E0E0E0;
    --background-light: #F8F3EF;
}

/* Variant switcher */
.rshin2-variant-section {
    margin: 30px 0;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
}
.rshin2-variant-label {
    font-size: 18px;
    color: var(--text-dark);
    font-weight: 600;
    margin-bottom: 10px;
    text-align: center;
}
.rshin2-variant-switcher {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
}
.rshin2-variant-btn {
    padding: 10px 20px;
    background: #fff;
    color: var(--text-dark);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    min-width: 120px;
    transition: all 0.2s ease;
}
.rshin2-variant-btn:hover { 
    background: var(--primary-light); 
}
.rshin2-variant-btn.active {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

/* Unit price */
.rshin2-unit-price {
    text-align: center;
    margin: 22px 0;
    font-size: 18px;
    color: var(--text-dark);
}
.rshin2-unit-price-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary-color);
    margin: 0 5px;
}
.rshin2-toman {
    font-size: 16px;
    color: var(--text-light);
}

/* Quantity controls */
.rshin2-quantity-calculator {
    text-align: center;
    margin: 18px 0;
}
.rshin2-quantity-controls {
    display: inline-flex;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    background: #fff;
}
.rshin2-quantity-btn {
    width: 50px;
    height: 50px;
    background: #fff;
    color: var(--primary-color);
    border: none;
    font-size: 22px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}
.rshin2-quantity-btn:hover { 
    background: var(--primary-light); 
}
.rshin2-quantity-input {
    width: 120px;
    border: none;
    font-size: 20px;
    text-align: center;
    font-weight: 700;
    color: var(--text-dark);
}

/* Calculation note */
.rshin2-calculation-note {
    text-align: center;
    font-size: 18px;
    color: var(--text-dark);
    margin: 20px 0;
    padding: 15px;
    background: var(--background-light);
    border-radius: 10px;
    border: 1px solid var(--border-color);
}
.rshin2-quantity-display,
.rshin2-unit-price-display {
    font-weight: 700;
    color: var(--primary-color);
}
.rshin2-final-price-display {
    font-size: 22px;
    font-weight: 800;
    color: var(--primary-color);
}

/* SKU display */
.rshin2-sku-display {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin: 20px 0;
    font-size: 16px;
}
.rshin2-sku-value {
    background: var(--primary-light);
    padding: 8px 18px;
    border-radius: 8px;
    color: var(--primary-color);
    font-weight: 700;
}

/* Responsive */
@media (max-width: 768px) {
    .rshin2-variant-btn { 
        width: calc(50% - 10px); 
        font-size: 14px; 
    }
}
@media (max-width: 480px) {
    .rshin2-variant-btn { width: 100%; }
    .rshin2-quantity-btn { width: 45px; height: 45px; }
    .rshin2-quantity-input { width: 90px; font-size: 18px; }
}