body{
    padding-top: 80px;
}

/* First Book Style */
.theme-book1 .theme{
    background-color: #53362d;
}
.theme-book1 .btn{
    background-color: #986b5c;
}

.theme-book1 .navbar-nav .nav-link.active, 
.theme-book1 .navbar-nav .nav-link:hover{
    border-bottom: 2px solid #ebc7ba;
    color: white;
}
.theme-book1 .navbar-toggler{
    background-color: #ebc7ba;
}
.theme-book1 .other-book{
    color: #986b5c;
}
.theme-book1 .card-border{
    border: 2px solid #986b5c;
}

/* Second Book Style */
.theme-book2 .theme{
    background-color: #102f15;
}
.theme-book2 .btn{
    background-color: #728c5a;
}
.theme-book2 .navbar-nav .nav-link.active, 
.theme-book2 .navbar-nav .nav-link:hover{
    border-bottom: 2px solid #eaf1b1;
    color: white;
}
.theme-book2 .navbar-toggler{
    background-color: #eaf1b1;
}
.theme-book2 .other-book{
    color: #728c5a;
}
.theme-book2 .card-border{
    border: 2px solid #728c5a;
}

/* Third Book Style */
.theme-book3 .theme{
    background-color: #0a1931;
}
.theme-book3 .btn{
    background-color: #275171;
}
.theme-book3 .navbar-nav .nav-link.active, 
.theme-book3 .navbar-nav .nav-link:hover{
    border-bottom: 2px solid #b3cfe5;
    color: white;
}
.theme-book3 .navbar-toggler{
    background-color: #b3cfe5;
}
.theme-book3 .other-book{
    color: #275171;
}
.theme-book3 .card-border{
    border: 2px solid #275171;
}

/* Global Styles */
.nav-link{
    color: white;
}

.img-fluid{
    max-width: 300px;
}
.card {
    transition: all 0.3s ease;
}
.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}