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

h1 {
    font-size: 2rem;
}

header {
    color: white;
    padding: 0;
}

footer {
    color: white;
    padding: 0;
    text-align: center;
}


.page-404 {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 20px;
}

.page-404 h1 {
    font-size: 50px;
    font-weight: 700;
    margin-bottom: 20px;
}

.page-404 p {
    font-size: 18px;
    color: #666;
    max-width: 600px;
}

.page-404 a {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 20px;
    background-color: #222;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    transition: 0.3s;
}

.page-404 a:hover {
    background-color: #444;
}

@media (max-width: 768px) {
    .page-404 {
        height: auto;
        padding: 100px 20px;
    }

    .page-404 h1 {
        font-size: 36px;
    }

    .page-404 p {
        font-size: 16px;
    }
}