body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    display: flex;
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
}

.sidebar {
    width: 200px;
    padding-right: 20px;
}

main {
    flex: 1;
    padding: 20px;
}

.logo-container {
    text-align: center;
    padding: 20px 0;
    background-color: #f0f0f0;
}

.centered-logo {
    max-width: 100%;
    height: auto;
}

.main-menu h3 {
    background-color: #333;
    color: white;
    padding: 10px;
    margin: 0;
}

.main-menu ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

.main-menu ul li {
    border-bottom: 1px solid #ccc;
}

.main-menu ul li a {
    display: block;
    padding: 10px;
    text-decoration: none;
    color: #333;
}

.main-menu ul li a:hover, .main-menu ul li a.active {
    background-color: #f0f0f0;
    font-weight: bold;
}

.main-content h2 {
    display: flex;
    align-items: center;
    margin-top: 30px;
}

.main-content h2 img {
    margin-right: 10px;
    max-width: 150px;
    height: auto;
}

.model-list {
    margin-left: 160px;
    font-size: 0.9em;
}

footer {
    text-align: center;
    padding: 10px;
    background-color: #f0f0f0;
}