html,body{
  margin: 0;
  padding: 0;
 
  
  width: 100%;
  font-family:'roboto',sans-serif;
}

.main-section{
  display: flex;
  height: 100%;
  padding: 10px;
  justify-content: center;
  align-items: center;
  margin-top: 10%;
  gap:10px;
  
}
#reference-id{
  height:40px;
  width:500px;
  padding: 5px 25px;
  font-size:14px;
}

.sub-section{
  display: flex;
  flex-direction: row;
  justify-content: center;
  gap:50px;
  margin-top: 20px;
  color:rgb(75, 78, 75);
  padding:10px;
}

.submit-class{
  display: flex;
  justify-content: center;
  margin-top:10px;
}
.submit-class>button{
  cursor: pointer;
  padding: 10px;
  width:150px;
  border:darkgrey solid 1px; 
  border-radius: 3px;
  background-color: rgb(209, 223, 205);
  font-weight: bold;
  font-size: 15px;
  
}
.submit-class>button:hover{
  background-color: rgba(199, 248, 185, 0.9);
}
.info{
  margin-left:15px;
  text-align:center;
  color: rgb(52, 49, 49);
}

.toast-overlay {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
}

main{
  margin-bottom:60px;
}



#toast-overlay div {
    background-color: #766e6ebf;
    color: white;
    padding: 12px 24px;
    border-radius: 4px;
    font-size: 14px;
    box-shadow: 0 4px 10px rgba(187, 183, 183, 0.3);
    animation: slideUp 0.3s ease-out;
    min-width: 250px;
    text-align: center;
}


.fade-out {
    opacity: 0;
    transition: opacity 0.5s ease;
}

@keyframes slideUp {
    from { transform: translateY(100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.info{
  color: #3ea3bae0;
}

@media only screen and (max-width:670px){
  .sub-section{
    display: flex;
    flex-direction: column-reverse;
  }
}