body {
    font-family: 'Roboto', sans-serif;
    background-color: #f0f2f5;
    margin: 0;
    padding-top: 10px;
    padding-right: 40px;
    padding-bottom: 40px;
    padding-left: 40px;  
    font-size: 0.85rem;
  }
  .header {
    background-color: #343a40;
    color: white;
    padding: 20px;
    font-size: 28px;
    font-weight: bold;
    text-align: center;
    border-radius: 10px;
    margin-bottom: 30px;
  }
  h2 {
    text-align: center;
    color: #333;
    margin-bottom: 20px;
  }
  table {
    width: 100%;
    border-collapse: collapse;
    background-color: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    border-radius: 10px;
    overflow: hidden;
    font-size: 0.8rem;
  }
  th, td {
    padding: 4px 8px;
    border-bottom: 1px solid #eee;
    text-align: left;
    vertical-align: middle;
  }
  th {
    background-color: #007bff;
    color: white;
  }
  tr:hover {
    background-color: #f5f5f5;
  }
  .btn, .btn-rojo, .btn-gris {
    padding: 10px 16px;
    margin: 5px;
    border: none;
    border-radius: 6px;
    color: white;
    font-weight: bold;
    text-decoration: none;
    transition: background-color 0.3s ease;
  }

  .btn-verde {
    padding: 2px 2px;
    margin: 5px;
    border: none;
    border-radius: 6px;
    color: white;
    font-weight: bold;
    text-decoration: none;
    transition: background-color 0.3s ease;
  }  

  .btn { background-color: #28a745; }
  .btn:hover { background-color: #218838; }

  .btn-verde { background-color: #28a745; }
  .btn-verde:hover { background-color: #218838; }

  .btn-rojo { background-color: #dc3545; }
  .btn-rojo:hover { background-color: #c82333; }

  .btn-gris { background-color: #6c757d; }
  .btn-gris:hover { background-color: #5a6268; }

  .pagination {
    text-align: center;
    margin-top: 20px;
  }

  .pagination span {
    font-weight: bold;
    margin: 0 5px;
    color: #333;
  }

  td.downloads {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: nowrap;
    justify-content: flex-start;
    white-space: nowrap;
  }

  td.downloads a {
    display: inline-flex;
    align-items: center;
  }

  .downloads img {
    width: 25px;
    height: 20px;
    margin: 0;
  }

  .center {
    text-align: center;
    margin-top: 30px;
  }

  .container, .card, .content, .section {
    padding: 8px !important; /* reduce relleno general */
    margin: 4px !important;
}