body {
    margin: 0;
    font-family: 'Arial', sans-serif;
}

#sidebar {
    width: 250px;
    height: auto;
    background-color: #1F7A4B;
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 20px;
    border-bottom: 1px solid #fff;
}

.sidebar-header i {
    font-size: 40px;
    margin-bottom: 10px;
}

.sidebar-header h3 {
    margin: 0;
}

.nav-item a {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    color: #fff;
    text-decoration: none;
    font-size: 18px;
    border-bottom: 1px solid #fff;
}

.nav-item a:hover {
    background-color: #145636;
}

.content {
    flex-grow: 1;
    padding: 20px;
}