.call-to-action {
  position: relative;
  text-align: center;
  padding: 70px 10px;
  background-size: cover;
  background-position: center;
  
  @include tablet {
    padding-top: 20px;
    padding-bottom: 20px;
  }

  &::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7); /* Adjust the color and opacity as needed */
    z-index: 1;
  }

  .container, .row, .col-md-12, .block {
    position: relative;
    z-index: 2;
  }

  h2 {
    color: #ffffff;
    margin: 0px;
    padding: 20px 0px;
    text-shadow: 
      -1px -1px 0 #000,  
       1px -1px 0 #000,
      -1px  1px 0 #000,
       1px  1px 0 #000; /* Black contour */
  }


  p {
    color: #ffffff;
    font-size: 20px;
    text-shadow: 
      -1px -1px 0 #000,  
       1px -1px 0 #000,
      -1px  1px 0 #000,
       1px  1px 0 #000; /* Black contour */
  }
  .btn-main {
    padding: 15px 35px;
    font-size: 20px;
    margin-top: 10px;
    margin-bottom: 10px;
    text-shadow: 
    -1px -1px 0 #000,  
     1px -1px 0 #000,
    -1px  1px 0 #000,
     1px  1px 0 #000; /* Black contour */
  }
}

.overlay-dark {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4); // oder 0.6 oder 0.7
  z-index: 1;
}
.call-to-action .container {
  position: relative;
  z-index: 2;
}