body {
    font-family:Arial;
    margin: 0;
    padding: 0;
    background-image: url("../images/pencil-background.jpg");
    background-size: 100%;
    background-position-y: top;
    background-repeat: repeat;
    background-color: rgb(255, 255, 255);
    color: #000000;
}

@media (prefers-color-scheme: dark) {
    body {
        background-image: url('../images/pencil-backgroundDARK.jpg');
    }
}
@media (max-width: 650px) {
    body {
        background-image: url("");
      
    }
}

@media (max-width: 650px) and (prefers-color-scheme: dark) {
    body {
        background-image: url("");
        background-color: #363636;
    }
}

.topbar {
    z-index: 15;
    background-color: #353636;
    overflow: hidden;
    display: flex;
    justify-content: center;
    position: relative;
    width: 100%;
    top: 0;
    font-family: "Kanit", sans-serif;
    font-size: 30px;
    font-weight: 700;
    font-style: normal;
    border-bottom: rgb(0, 47, 255) 5px solid;
}
.topbar a {
    display: flex;
    color: rgb(255, 255, 255);
    text-align: center;
    padding: 4px 20px;
    text-decoration: none;
    border-top-right-radius: 20px;    
    border-top-left-radius: 20px;  
}
.topbar-middle{
    position: relative;  
    /* margin-left: -230px;  */
    background-color:  rgba(0, 47, 255);
 }
 @media (max-width: 650px) {
     .topbar-middle {
         margin-left: 0px; 
     }
 }
 .topbar-right{
     position: absolute;
     right: 0;
     top: 0;
 }
 @media (max-width: 650px) {
     .topbar-right {
         position: relative;
         right: 0;
         top: 0;
     }
 }
.topbar a:hover {
    background-color: rgba(0, 47, 255, 0.5);
    
}




/* Popup login */
#popup-box{
    display: none; /* disabled for now */
    padding: 0px;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    position: fixed;
    top: 0; 
    right: 0; 
    bottom: 0; 
    left: 0; 
    background-color: rgba(0, 0, 0, 0.9);
    width: 100%;
    height: 100%;
    z-index: 10;
}
.popup-login{
    position: absolute;
    top: 50%; 
    left: 50%; /* Add this */
    transform: translate(-50%, -50%); 
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 0 20px 0px rgba(0, 0, 0, 0.1);
    background-color: #f1f1f1;
    border: #fff 15px solid;
    transition: transform 0.5s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow: auto; 
}
@media (max-width: 600px) {
    .popup-login {
        width: 90%; 
        padding: 10px; 
        font-size: 0.8em; 
    }
}
.popup-login p {
    font-family: kanit, sans-serif;
    font-size: 30px;
    display: flex;
    font-style: normal;
    text-align: center;
}
.popup-login h3 {
    font-family: kanit, sans-serif;
    font-size: 50px;
    font-style: normal;
    text-align: center;
}