body {
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    color: #333;
    margin: 0;
    padding: 0;
    text-align: center;
}
header {
    background: #222;
    padding: 20px;
}
#logo {
    width: 150px;
}
.nav-button {
    display: inline-block;
    padding: 12px 20px;
    border-radius: 5px;
    background: #ffd700;
    color: #222;
    font-weight: bold;
    text-transform: uppercase;
    text-decoration: none;
    transition: 0.3s;
}
.nav-button:hover {
    background: #ffcc00;
    color: #000;
}
footer {
    background: #222;
    color: #fff;
    padding: 20px;
    margin-top: 20px;
}