body {
    font-family: Arial, sans-serif;
    background-color: #f8f9fa;
}
.navbar {
    background-color: #343a40 !important;
}
.navbar-brand, .navbar-nav .nav-link {
    color: #ffffff !important;
}
.jumbotron {
    background-color: #007bff;
    color: #ffffff;
    padding: 100px 0;
    margin-bottom: 0;
}
.jumbotron h1 {
    font-size: 3.5rem;
}
.jumbotron p {
    font-size: 1.5rem;
}
.navbar-logo {
    max-width: 100%; 
    height: auto;
    display: block;

}
.logo-container {
    width: 200px; 
    height: 200px; 
    overflow: hidden;
    border-radius: 50%; 
    margin: 0 auto; 
    border: 4px solid #343a40 ;
}