:root {
    
    /* ===== Desktop ===== */
    
    --desktop-size-max: 1920;
    --desktop-size-min: 1441;
    
    /* =================== */
    
    /* ===== Laptop ===== */
    
    --laptop-size-max: 1440;
    --laptop-size-min: 1025;
    
    /* ================== */
    
    /* ===== Tablet ===== */
    
    --tablet-size-max: 1024;
    --tablet-size-min: 510;
    
    /* ================== */
    
    /* ===== Mobile ===== */
    
    --mobile-size-max: 509;
    --mobile-size-min: 350;
    
    /* ================== */
}