.popup {
    display: none; 
    position: fixed; 
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.6); 
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000; 
  }
  
  .popup-content {
    background-color: #fff;
    padding: 20px 30px;
    border-radius: 12px;
    max-width: 400px;
    width: 90%;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    position: relative;
  }
  
  .popup img {
    width: 100%;
    border-radius: 8px;
    margin-bottom: 15px;
  }
  
  .popup h4 {
    margin: 10px 0;
    font-weight: bold;
  }
  
  .popup p {
    margin-bottom: 15px;
    color: #555;
  }
  
  .popup .close {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 30px;
    font-weight: bold;
    cursor: pointer;
    color: #333;
    transition: 0.3s;
  }
  
  .popup .close:hover {
    color: #c59d5f;
  }

  .btn-comprar {
    text-transform: uppercase;
    background: transparent;
    color: var(--clr-black);
    padding: 0.275rem 0.55rem;
    letter-spacing: var(--spacing);
    transition: var(--transition);
    font-size: 0.775rem;
    border: 2px solid var(--clr-black);
    cursor: pointer;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    border-radius: var(--radius);
  }
  .btn-comprar:hover {
    color: var(--clr-white);
    background: var(--clr-black);
  }