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

.container {
    display: flex;
    height: 100vh;
}

.sidebar {
    width: 220px;
    background-color: #2c3e50;
    color: white;
    padding: 20px;
}

.sidebar h2 {
    text-align: center;
}

.sidebar ul {
    list-style-type: none;
    padding: 0;
}

.sidebar ul li {
    margin: 15px 0;
}

.sidebar ul li a {
    color: white;
    text-decoration: none;
}

.sidebar ul li a:hover {
    text-decoration: underline;
}

.main {
    flex-grow: 1;
    padding: 20px;
    background-color: #ecf0f1;
}
.login-box {
    width: 300px;
    margin: 100px auto;
    padding: 20px;
    border: 1px solid #ccc;
    background-color: #fff;
    text-align: center;
}
.login-box input {
    width: 90%;
    padding: 8px;
    margin-bottom: 10px;
}
.login-box button {
    padding: 8px 16px;
}