body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    background-color: #f9f9f9;
    padding-top: 70px; 
}

header {
    background-color: #4CAF50;
    color: white;
    padding: 1px;
    text-align: center;
}

.navbar {
    background-color: #4CAF50;
    border: 0;
    font-size: 14px !important;
    letter-spacing: 1px;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000; 
}

.navbar a {
    color: #fff !important;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px 0;
    margin-top: 20px;
}

footer a {
    color: #4CAF50;
    text-decoration: none;
}

.navbar-nav .nav-item .nav-link {
    color: white !important;
    font-weight: bold;
    padding: 10px 15px;
    transition: background-color 0.3s ease-in-out;
}

.navbar-nav .nav-item .nav-link.active,
.navbar-nav .nav-item .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 5px;
}