html{
    size-adjust:calc();
    stroke-width: 0%;
}
body {
    position: relative; /* added for absolute popup positioning */
    font-family: 'Poppins', sans-serif;
    background-color:black;  
    margin: 0;
    padding: 0;
}

.navbar {
    background-color:lime;
    color: black;
    padding: 20px;
    text-align: left;
    font-family: Cooper;
}

.navbar-title {
    margin: 20px;
    font-size: 40px;
    font-weight: 700;
}

.container {
    padding: 20px;
}

.book-container {
    background-color: black;
    border: 3px solid lime;
    padding: 20px;
    margin: 10px 0;
    border-radius: 7px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    cursor:auto;
    color: lime;
}
.book-container h2{
    color: lime;
    font-family: Times New Roman;
    border-bottom: black solid 4px;
    display: inline;
}

.book-container h4{
    color: white;
}

.popup-overlay {
    display: none;
    position: absolute; /* changed from fixed */
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: black;
    opacity: 0.8;
    z-index: 999;
}

.popup-box {
    display: none;
    position: absolute; /* changed from fixed */
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: lime;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 6px 15px rgba(0,0,0,0.3);
    z-index: 1000;
    width: 300px;
    max-width: 80%;
    cursor: auto;
}

.popup-box h2 {
    margin-top: 0;
}

.book-container p{
    color:lime;
}

.popup-box input,
.popup-box textarea {
    width: calc(100% - 20px);
    margin-bottom: 10px;
    padding: 10px;
    border-radius: 5px;
    box-sizing: border-box;
    background-color: black;
    color: lime;
}

#book-form button:hover{
    background-color: #fff;
    color: black;
}

#book-form input{
    background-color: black;
    color: lime;
    place-content: black;
    border: none;
}

#confirmation-popup-box button:hover{
    background-color: #fff;
    color: black;
}

#book-description-input{
    background-color: black;
    color: lime;
    place-content: black;
    border: none;
}

.popup-box textarea{
    background-color: lime;
}

.popup-box button {
    margin: 5px 0;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    background-color: black;
    color: lime;
}

#add-book {
    background-color: black;
    color: lime;
}

#cancel-popup {
    background-color: black;
    color: lime;
}

.add-button {
    position: absolute;
    bottom: 140px;
    right: 50px;
    background-color: lime;
    color: black;
    border: black solid 3px;
    margin:10px;
    border-radius: 100%;
    width: 70px;
    height: 70px;
    font-size: 50px;
    cursor: pointer;
}

.add-button:hover{
    background-color: white;
    color: black;
}

.delete-button {
    background: lime;
    color: black;
    border: none;
    padding: 5px 10px;
    cursor: pointer;
    border-radius: 5px;
    margin-top: 10px;
}

.delete-button:hover {
    background-color:white ;
    color: black;
}

#book-form input{
    background-color: white;
    color: black;
}

.confirm-button {
    background-color: lime;
    color: black;
    margin-right: 10px;
}

.cancel-confirm-button {
    background-color: #dc3545;
    color: #fff;
}

.confirm-button, .cancel-confirm-button {
    margin: 10px 5px 0 0;
}

a{
    color: rgb(9, 150, 231);
}

a:hover{
    color: red;
}

footer{
    background-color: lime;
}

#zzz{
    color:rgb(9, 150, 231);
}

#zzz:hover{
    color: red;
    text-shadow: #dcd135;
}

footer a{
    color: red;
}

footer a:hover{
    color: black;
}