body {
    font-family: "Helvetica Neue", Helvetica, sans-serif;
    line-height: 1.5;
    margin: 0 auto;
    padding: 0 1rem;
    max-width: 600px;
    color: #4a525a;
    background-color: #f5f5f5;
}

header {
    padding: 1rem 0;
    border-bottom: 1px solid #ccc;
}

header h1 {
    font-size: 2.8rem;
    font-weight: 300;
    margin: 0;
    letter-spacing: -0.02em;
    color: #2a2a2a;
}

main {
    padding: 2rem 0;
}

section {
    margin-bottom: 2rem;
}

a {
    color: #666;
    text-decoration: underline;
}

a:hover {
    color: #4a525a;
}

h2 {
    font-size: 1.5rem;
    font-weight: bold;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
}

footer {
    border-top: 1px solid #ccc;
    padding: 0.5rem 0;
    font-size: 0.8rem;
    color: #666;
}

@media screen and (min-width: 640px) {
    body {
        padding: 0;
    }
}