/* Default Light Theme */
body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background: #ffffff;
    color: #222;
    transition: background 0.3s ease, color 0.3s ease;
}

.container {
    text-align: center;
    margin-top: 100px;
}

#theme-toggle {
    margin-top: 20px;
    padding: 10px 20px;
    font-size: 20px;
    cursor: pointer;
    border: none;
    border-radius: 8px;
    background: #3c5077;
    color: #fff;
    transition: background 0.3s ease;
}

#theme-toggle:hover {
    background: #2b3958;
}

/* Dark Theme */
body.dark {
    background: #222;
    color: #fff;
}