body {
    background-color: #f8f9fa;
    font-family: 'Arial', sans-serif;
}

h1 {
    font-size: 2.5rem;
    color: #343a40;
}

.card {
    background-color: #ffffff;
    border-radius: 0.5rem;
}

.form-group label {
    font-weight: bold;
}

.btn {
    border-radius: 0.5rem;
    padding: 0.5rem 1.5rem;
}

#networkContainer {
    width: 100%;
    height: 500px;
    border: 1px solid #ccc;
    background-color: #fff;
    border-radius: 0.5rem;
}

#topologyName, #ipRanges {
    background-color: #f1f1f1;
    padding: 1rem;
    border-radius: 0.5rem;
}

#topologyName h3, #ipRanges h3 {
    margin-bottom: 1rem;
}

#sidebar {
    width: 250px;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    padding: 20px;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
}

.sidebar-header {
    margin-bottom: 20px;
}

.sidebar-header #logo{
    margin-left: 30px;
    width: 150px;
    height: 150px;
    border-radius: 100%;
}

#sidebar .components {
    padding: 0;
}

#sidebar .components li {
    margin-left: 50px;
    margin-bottom: 30px;
}

#sidebar .components a {
    color: #343a40;
    text-decoration: none;
    font-weight: bold;
}

#sidebar .components a:hover {
    color: #007bff;
}

#content {
    margin-left: 260px;
}