#simple-product-options-wrapper {
    margin-bottom: 20px;
}

#simple-product-options-wrapper .simple-options-message {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin-bottom: 15px;
    padding: 10px 15px;
    background: #f0f8ff;
    border-left: 4px solid #1979c3;
    border-radius: 3px;
}

#simple-product-options-wrapper .simple-options-toggle {
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
    transition: background-color 0.3s ease;
}

#simple-product-options-wrapper .simple-options-toggle:hover {
    background: #e6f3ff;
}

#simple-product-options-wrapper .simple-options-toggle .toggle-icon {
    display: inline-flex;
    transition: transform 0.3s ease;
}

#simple-product-options-wrapper .simple-options-toggle[aria-expanded="true"] .toggle-icon {
    transform: rotate(180deg);
}

#simple-product-options-wrapper .simple-options-content {
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transition: max-height 0.4s ease, opacity 0.3s ease;
}

#simple-product-options-wrapper .simple-options-content.open {
    max-height: 2000px;
    opacity: 1;
}

#simple-product-options-wrapper .fieldset {
    border: 1px solid #e3e3e3;
    padding: 20px;
    background: #f9f9f9;
}

#simple-product-options-wrapper .field.configurable {
    margin-bottom: 15px;
}

#simple-product-options-wrapper .field.configurable:last-child {
    margin-bottom: 0;
}

#simple-product-options-wrapper .label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    color: #333;
}

#simple-product-options-wrapper .control {
    position: relative;
}

#simple-product-options-wrapper select.simple-attribute-select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #c2c2c2;
    background-color: #fff;
    font-size: 14px;
    line-height: 1.42857143;
    color: #555;
    border-radius: 3px;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

#simple-product-options-wrapper select.simple-attribute-select:focus {
    border-color: #66afe9;
    outline: 0;
    box-shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(102,175,233,.6);
}

#simple-product-options-wrapper select.simple-attribute-select:disabled {
    background-color: #eeeeee;
    cursor: not-allowed;
    opacity: 0.6;
}

#simple-product-options-wrapper select.simple-attribute-select {
    height: 45px;
    padding: 10px 8px;
    line-height: 1.4;
    box-sizing: border-box;
}

/* Loading state */
#simple-product-options-wrapper.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Responsive */
@media (max-width: 767px) {
    #simple-product-options-wrapper .fieldset {
        padding: 15px;
    }
    
    #simple-product-options-wrapper select.simple-attribute-select {
        font-size: 16px; /* Prevent zoom on iOS */
    }
}