.pak-mega-attributes-holder{ 
    margin-bottom:14px; 
    padding:10px 12px; 
    border-radius:8px; 
    background:#fbfbfb; 
    border:1px solid #eee;
}
.pak-mega-attributes-holder .pak-attr-row{ margin-bottom:8px; }
.pak-mega-attributes-holder .pak-attr-label{ display:block; margin-bottom:6px; color:#c0392b; font-weight:600; }
.pak-mega-attributes-holder .pak-attr-btn{ 
    display:inline-block; padding:6px 10px; margin-right:6px; margin-bottom:6px; border-radius:4px; border:1px solid #ddd; background:#fff; cursor:pointer;
}
.pak-mega-attributes-holder .pak-attr-btn.active, .pak-mega-attributes-holder .pak-attr-btn[aria-pressed="true"]{
    background:#c0392b; color:#fff; border-color:#b23027;
}
.pak-mega-attributes-holder select{ display:none; } /* keep select for form submission but hide visually */