body {
    margin: 0;
    background: #ffffff;
    color: #000000;
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.7;
}


.site-header {
    padding: 40px;
    border-bottom: 1px solid #000;
}


.brand {
    font-size: 3rem;
    letter-spacing: .2em;
}


.tagline {
    margin-top: 10px;
    font-size: .85rem;
}


main {
    max-width: 900px;
    margin: auto;
}


.hero {
    text-align: center;
    padding: 120px 40px;
}


.binary {
    font-family: monospace;
    font-size: 2rem;
    letter-spacing: .3em;
    margin-bottom: 40px;
}


h1 {
    font-size: 3rem;
    font-weight: normal;
}


section {
    padding: 60px 40px;
}


h2 {
    border-bottom: 1px solid #000;
    padding-bottom: 10px;
    font-weight: normal;
}


footer {
    border-top: 1px solid #000;
    padding: 40px;
    text-align: center;
    font-size: .8rem;
}