body{
    margin:0;
    font-family:Arial,sans-serif;
    background:#f4f4f4;
}

.container{
    width:90%;
    max-width:1200px;
    margin:auto;
}

.site-header,
.site-footer{
    background:#111;
    color:#fff;
    padding:20px 0;
}

.hero-section{
    min-height:80vh;
    display:flex;
    align-items:center;
    justify-content:center;
    text-align:center;
    background:#000;
    color:#fff;
}

.error-404{
    text-align:center;
    padding:100px 0;
}