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

.navbar {
    background-color: #333;
    color: white;
    padding: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar a {
    color: white;
    margin-right: 15px;
    text-decoration: none;
    font-weight: bold;
}

.login-button {
    background-color: #555;
    padding: 8px 12px;
    border-radius: 5px;
    cursor: pointer;
}

.login-button:hover {
    background-color: #777;
}

.login-popup {
    display: none;
    position: fixed;
    top: 20%;
    right: 5%;
    background: white;
    padding: 20px;
    border: 1px solid #aaa;
    box-shadow: 0 0 10px black;
    border-radius: 8px;
}

.login-popup input {
    display: block;
    margin-bottom: 10px;
    width: 220px;
    padding: 6px;
}

button {
    padding: 8px 12px;
    cursor: pointer;
}