body {
  background-color: #f7f7f7;
  margin: auto;
  font-family: Arial, sans-serif;
}
#mainContent {
    height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}
#secondaryContent {
  height: 5vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
#contentText {
  max-width: 80vw;
}
.drop-zone {
    border: 2px dashed #ccc;
    border-radius: 10px;
    padding: 40px;
    width: 80vw;
    height: 60vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color 0.4s, border-color 0.4s;
    background-color: white;
}
.drop-zone.dragover {
    background-color: #6f9de7;
    border-color: #aaa;
}
.drop-zone h1 {
    font-size: 2em;
    margin-bottom: 20px;
}
.drop-zone p {
    margin: 0;
    color: #595959;
}
input[type="file"] {
    display: none;
}
#pdf-display {
    display: none;
}