body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

header, footer {
    background-color: #000;
    color: #fff;
    text-align: center;
    padding: 10px 0;
}

nav ul.menu {
    list-style: none;
    display: flex;
    padding: 0;
    margin: 0;
    background-color: #333;
}

nav ul.menu > li {
    position: relative;
}

nav ul.menu > li a {
    color: #fff;
    padding: 10px 20px;
    display: block;
    text-decoration: none;
}

nav ul.menu > li:hover ul.submenu {
    display: block;
}

ul.submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #444;
    list-style: none;
    padding: 0;
    margin: 0;
}

ul.submenu li a {
    padding: 10px 20px;
    color: #fff;
    text-decoration: none;
}

.login-container {
    max-width: 400px;
    margin: 100px auto;
    padding: 20px;
    background: #fff;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.login-container h2 {
    margin-bottom: 20px;
    text-align: center;
}

.login-container input {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.login-container button {
    width: 100%;
    padding: 10px;
    background: #333;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}