body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
    text-align: center;
    padding: 20px;
}

.container {
    max-width: 500px;
    margin: auto;
    background: white;
    padding: 20px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
}

input, button {
    width: 100%;
    padding: 10px;
    margin: 5px 0;
    border: 1px solid #ccc;
    border-radius: 5px;
}

button {
    background: blue;
    color: white;
    border: none;
    cursor: pointer;
}

button:hover {
    background: darkblue;
}

.links {
    margin-top: 20px;
}

.dark-mode {
    background-color: #222;
    color: white;
}

.dark-mode .container {
    background: #333;
}

.dark-mode button {
    background: orange;
}