.open-category {
    position: fixed;
    bottom: 20px;
    left: 30px;
    background-color:  #5b13b9;
    color: white;
    font-size: 18px;
    padding: 13px;

    border-radius: 10px;
    box-shadow: var(--shadow-1);
    z-index: 4;
    transition: var(--transition-1);
  }
  
  .open-category:is(:hover, :focus) {
    background-color: white;
    transform: translateY(10px);
    color: var(--black);
  }
  
  .categories {
    position: fixed;
    bottom: 100px;
    left: 30px;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  .category-btn {
    background-color: rgb(0, 0, 0);
    color: rgb(255, 255, 255);
    font-size: 16px;
    padding: 10px;
    border: 1px solid rgba(128, 128, 128, 0.301);
    border-radius: 8px;
    text-align: left;
    text-decoration: none;
    transition: var(--transition-1);
  }
  
  .category-btn:is(:hover, :focus) {
    background-color: var(--black);
    color: var(--white);
    transform: translateX(30px);
  }
  
  .hidden {
    display: none;
  }