.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.overlay_dark {
  position: absolute; 
  top: 0; left: 0; 
  width: 100%; height: 100%; 
  background-image: linear-gradient(to top, rgba(0, 0, 0, 1), rgba(0, 0, 0, 0));
}

.container-project {
  width: 100%;
  margin-right: auto;
  margin-left: auto;
  background-color: white;
  padding: 100px 20px 100px 20px;
}

h2 {
  font-size: 2vw;
  font-weight: bold;
}
h3 {
    font-size: 1.5vw;
    font-weight: bold;
    text-align: left;
}
p {
    font-size: 1.3vw;
    text-align: left;
}
.l1 {
  font-size: 1.5vw;
}


/* Hide all headers by default */
#header, #header2, #header3 {
  display: none;
}
#projects1-1, #projects1-2, #projects1-3 {
  display: none;
}

.headline {
  font-size: 5vh;
  font-weight: bold;
  color: white;
  padding: 1.5rem;
  line-height: 1.2;
}

/* Display the first header for viewports wider than 1200px */
@media (min-width: 1200px) {
  #header {
    display: block;
    height: auto;
  }
  #projects1-1 {
    display: block;
    height: auto;
  }
  .masthead {
    height: 25rem;
  }
}

/* Display the second header for viewports between 800px and 1199px */
@media (max-width: 1199px) and (min-width: 769px) {
  #header2 {
    display: block;
    height: auto;
  }
  .masthead {
    height: 10rem;
  }
  .headline {
    font-size: 4.8vh;
  }
  
  #projects1-2 {
    display: block;
    height: auto;
  }
  h2 {
    font-size: 3.5vw;
    font-weight: bold;
    text-align: center;
  }
  h3 {
    font-size: 2vw;
    font-weight: bold;
    text-align: left;
  }
  p {
      font-size: 1.8vw;
      text-align: left;
  }
  .l1 {
    font-size: 2.2vw;
    padding-left: 10px;
  }
  .container-project {
    width: 100%;
    margin-right: auto;
    margin-left: auto;
    background-color: white;
    padding: 50px 10px 50px 10px;
  }
}

/* Display the third header for viewports less than 800px */
@media (max-width: 768px) {
  #header3 {
    display: block;
    height: auto;
  }
  .masthead {
    height: 10rem;
  }
  .headline {
    font-size: 3.5vh;
  }

  #projects1-2 {
    display: block;
    height: auto;
  }
  h2 {
    font-size: 5vw;
    font-weight: bold;
    text-align: center;
  }
  h3 {
    font-size: 3vw;
    font-weight: bold;
    text-align: left;
  }
  p {
      font-size: 2.5vw;
      text-align: left;
  }
  .l1 {
    font-size: 3.5vw;
    padding-left: 10px;
  }
  .container-project {
    width: 100%;
    margin-right: auto;
    margin-left: auto;
    background-color: white;
    padding: 50px 5px 50px 5px;
  }
  #projects1-3 {
    display: block;
    height: auto;
  }
}



















.masthead2 {
  height: 50vh;
  background-image: url("/static/home/img/four.webp");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}      
.shrink {
-webkit-transform:scale(0.70);
-moz-transform:scale(0.70);
-ms-transform:scale(0.70);
transform:scale(0.70);
}
.bottom2 {
vertical-align: bottom;
}         

:root {
--overlay-opacity: 0.7; /* Adjust this value to change transparency */
}

.about-section {
position: relative;
z-index: 1;
}

.about-section .overlay {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
background: rgba(0, 0, 0, var(--overlay-opacity));
z-index: -1;
}

h2{
color: #2e3c63
} 

.img-shadow{
  width: 100%;
  box-shadow: 8px 8px 5px lightgrey;
}

.img-shadow-left{
  width: 100%;
  box-shadow: -8px 8px 5px lightgrey;
}


.scrollable-frame {
    height: 800px;
    overflow-y: auto;
}

.portvision-frame {
  border: 2px grey solid;
  box-shadow: 8px 8px 4px lightgrey;
  border-radius: 5px;
  background-color: white;
}

.btn-third{background-color:#384f8d}
.btn-third:hover{background-color:#526597}