/* CSS for Navbar */
#logo {
    transition-duration: 0.5s;
}

#logo:hover {
    transform: scale(1.2);
}

.fa-solid {
    margin-right: 8px;
}


#course {
    color: #ffffff;
    position: relative;
    text-decoration: none;
    margin-left: 15px;
    margin-right: 15px;
    font-weight: bold;
    padding-left: 0px;
    padding-right: 0px;
    font-size: 15px;
}

#course::before {
    content: "";
    position: absolute;
    width: 100%;
    height: 4px;
    border-radius: 4px;
    background-color: #ffffff;
    bottom: 0;
    left: 0;
    transform-origin: center;
    transform: scaleX(0);
    transition: transform 0.3s ease-in-out;
}

#course:hover::before {
    transform-origin: left;
    transform: scaleX(1);
}


#nav_a {
    color: #ffffff;
    position: relative;
    text-decoration: none;
    margin-left: 15px;
    margin-right: 15px;
    font-weight: bold;
    padding-left: 0px;
    padding-right: 0px;
    font-size: 15px;
}

#nav_a::before {
    content: "";
    position: absolute;
    width: 100%;
    height: 4px;
    border-radius: 4px;
    background-color: #ffffff;
    bottom: 0;
    left: 0;
    transform-origin: center;
    transform: scaleX(0);
    transition: transform 0.3s ease-in-out;
}

#nav_a:hover::before {
    transform-origin: left;
    transform: scaleX(1);
}

#login {
    color: #ffffff;
    position: relative;
    text-decoration: none;
    margin-left: 15px;
    margin-right: 15px;
    font-weight: bold;
    padding-left: 0px;
    padding-right: 0px;
    font-size: 15px;
}

#login::before {
    content: "";
    position: absolute;
    width: 100%;
    height: 4px;
    border-radius: 4px;
    background-color: #ffffff;
    bottom: 0;
    left: 0;
    transform-origin: center;
    transform: scaleX(0);
    transition: transform 0.3s ease-in-out;
}

#login:hover::before {
    transform-origin: left;
    transform: scaleX(1);
}

.navbar-toggler{
    background-color: white;
}

/* CSS for Index Page */
#show_data{
    margin: 30px;
    display: grid;
    grid-template-columns: repeat(4,2fr);
    gap: 10px;
}

#img_div{
    margin-bottom: 20px;
}
#course_img{
    border-radius: 15px;
}

#btn_buy{
    border: none;
    width: 150px;
    margin-top: 20px;
    border-radius: 10px;
    font-weight: bold;
    background-color: gray;
    padding: 5px;
}